JPH0986738A - Image recording material transport device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image recording material transport device, in which the operation of rewinding the leading part of an image recording material which has been drawn from a magazine and cut to the magazine and the operation of transporting the cut image recording material to the next processing part can be conducted simultaneously in a compact structure using a single driving source and without the need of complicated control. SOLUTION: A gear unit 214 is disposed in a driving system for connecting a motor 204 to transport rollers 192A, 192B. One-way clutches 224, 226 are coaxially disposed in the same rotating force transmitting direction. Accordingly, even if the motor 204 is switched between normal rotation and reverse rotation, only any one of a gear 220 and a gear 218 transmits the normal rotating force, so that the reverse rotation of nip rollers 186A, 186B (rewind operation for a photosensitive material 184) and the normal rotation of transport rollers 192A, 192B (transport operation for the photosensitive material 184) can be simultaneously conducted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording material conveying apparatus, and more particularly to drawing out an image recording material contained in a magazine, conveying the image recording material after being cut, and cutting the image recording material. The present invention relates to an image recording material conveying device for rewinding the remaining portion (drawing portion) into the magazine.

[0002]

2. Description of the Related Art As an image recording material, there is known an image recording apparatus which performs an image recording process using, for example, a photosensitive material and an image receiving material.

In this type of image recording apparatus, the photosensitive material and the image receiving material are respectively wound and accommodated in roll-shaped magazines in a light-shielding magazine. Each time an image recording process is performed, a pull-out roller is used. It is sandwiched and used by sequentially pulling it out. Further, the image recording apparatus is provided with a water coating section for coating the image forming solvent on the photosensitive material, and further, from a heating drum and an endless pressure welding belt which is in pressure contact with the outer circumference of the heating drum and rotates together with the heating drum. The thermal development transfer section is arranged.

The photosensitive material, which is pulled out from the magazine by a predetermined size by a drawing roller and cut, is exposed to an image while being conveyed while being nipped and conveyed by a conveying roller, and further, water is applied as a solvent for image formation in a water application section, and then heat is applied. It is sent to the development transfer section. On the other hand, like the photosensitive material, the image receiving material is pulled out from the magazine by a predetermined size by a drawing roller and cut, and is fed to the heat development transfer section in synchronization with the photosensitive material by the conveying roller. In the heat-development transfer section, the light-sensitive material coated with water is superposed with the image-receiving material, and in this state, the light-sensitive material is closely wound around the outer periphery of the heating drum. Further, both materials are sandwiched and conveyed between the heating drum and the endless pressure contact belt so that the photosensitive material is thermally developed and an image is transferred to the image receiving material, and a predetermined image is formed (recorded) on the image receiving material. is there.

By the way, in such an image recording apparatus, for example, a photosensitive material after being pulled out from a magazine by a predetermined size and cut, is provided with a pull-out roller in order to prevent careless exposure and to secure the ejectability of the magazine. By rotating in the reverse direction, the tip of the photosensitive material is rewound into the magazine again to such an extent that the tip of the photosensitive material is slightly nipped.

In this case, the conveying roller for conveying the cut photosensitive material may rotate only in the forward direction to convey the cut photosensitive material as it is, but such a photosensitive material is pulled out and rewound from the magazine. The drawer roller is
As described above, since it is necessary to rotate in both the forward and reverse directions, at the beginning, separate drive sources such as motors were arranged in the drive system of the pull-out roller and the drive system of the transport roller to independently control the rotation. However, with the configuration in which different motors are arranged independently for each drive system in this way,
The number of parts, the layout space, and the cost increase.

Therefore, a mechanism has been considered in which both the drive system of the pull-out roller and the drive system of the transport roller are driven by a single motor. In this type of drive mechanism, for example, a one-way clutch is provided between the motor and the conveyance roller so that the driving force is not transmitted to the conveyance roller when the motor rotates in the reverse direction. The photosensitive material (drawer part) can be rewound into the magazine by rotating the pull-out roller in the opposite direction, and even when the pull-out roller rewinds the magazine, this operation does not affect the transport roller, and the photosensitive material is pulled out. The rewinding operation of the part into the magazine and the conveying operation of the material after being cut can be performed by a single motor. Therefore, the number of parts and the arrangement space can be reduced, and the cost can be reduced.

[0008]

However, in the drive mechanism having the above-described structure, the single motor drives both the drive system of the feed roller and the drive system of the pull-out roller to reduce the number of parts and the arrangement space. Although it is possible to reduce the cost, it is not possible to perform the rewinding operation of the magazine by the pull-out roller and the conveying operation of the material after being cut (in other words, the operation of rewinding the magazine by the pull-out roller to the magazine. Only after the returning operation is completed, the material after being cut cannot be conveyed. Therefore, there is a drawback that the entire image recording process takes a long time.

In view of the above facts, the present invention is a compact structure with a single drive source, and efficiently removes the drawn-out portion of the image recording material after being cut out from the magazine and cut, without requiring complicated control. It is an object of the present invention to obtain an image recording material conveying device capable of simultaneously performing the rewinding operation and the operation of conveying the cut image recording material to the next processing section and shortening the processing time.

[0010]

According to another aspect of the present invention, there is provided an image recording material conveying apparatus which holds an image recording material accommodated in a magazine, and positively rotates it so that the image recording material is pulled out, conveyed and reversely rotated. A rewinding and rewinding roller for rewinding and conveying, a conveying roller for conveying the image recording material that has been drawn and cut by the rewinding and rewinding roller, and a rewinding and rewinding roller that is rotatable in forward and reverse directions. A single drive source for driving the transport roller, and a positive direction rotational force of the drive source is transmitted to both the pull-out rewind roller and the transport roller as a positive direction rotational force, and a reverse direction of the drive source. Is transmitted to the pull-out rewind roller as a reverse direction rotation force and is also transmitted to the conveyance roller as a forward direction rotation force.

In the image recording material conveying device according to the first aspect of the present invention, the image recording material contained in the magazine is pulled out by the pull-out rewind roller, and after being cut, the pull-out portion is wound around the magazine by the pull-out rewind roller. The cut portion is returned and is conveyed by the conveying roller.

Here, when drawing out the image recording material,
When the drive source is rotated in the forward direction, the rotational force is transmitted by the rotational force transmission mechanism, the pull-out roller is rotated in the forward direction, and the conveying roller is also rotated in the forward direction, so that the image recording material is conveyed. On the other hand, after the image recording material is pulled out and cut, by rotating the drive source in the reverse direction, the pull-out roller is rotated in the reverse direction, and at the same time, the transport roller is rotated in the forward direction. As a result, the drawn-out portion of the image recording material is rewound into the magazine by the drawn-out rewinding roller, and at the same time, the cut portion is conveyed by the conveying roller.

As described above, in the image recording apparatus according to the present invention, not only the image recording material contained in the magazine can be drawn out by the single drive source, but also the image after being cut out from the magazine and cut. The operation of rewinding the drawn-out portion of the recording material to the magazine and the operation of conveying the cut image recording material to the next processing section can be performed at the same time, and the processing time can be shortened. Further, the number of parts and the arrangement space are reduced, and the cost is also reduced.

According to a second aspect of the present invention, there is provided an image recording material conveying apparatus, wherein:
The rotational force transmission mechanism is disposed between the drive source and the pull-out rewind roller and the transport roller, and connects the drive source to the pull-out rewind roller and the transport roller to transfer the rotational force of the drive source. Two one-way clutches having a plurality of gears for transmitting to the draw-out / rewinding roller and the conveying roller and having the same rotational force transmitting directions are coaxial with one gear between the drive source and the conveying roller. And a first driving force transmission system in which only one one-way clutch transmits the rotational force of the driving source to the conveying roller, and the other one-way clutch only transmits the rotational force of the driving source to the conveying roller. A second driving force transmission system for transmission, and a speed change / reverse rotation mechanism for speed change and rotation direction inversion is interposed in either one of the first driving force transmission system and the second driving force transmission system. Let me run The forward rotation and the reverse rotation of the drive source can both be transmitted as a forward rotational force to the conveying roller, and the rotation direction of the drive source is switched between the forward and reverse directions. The drawing and rewinding roller and the conveying roller are rotated in the forward direction, and the drawing and rewinding roller is rotated in the reverse direction by the reverse rotation of the drive source, and at the same time, the conveying roller is rotated in the forward direction.

In the image recording material conveying device according to the second aspect of the present invention, the image recording material contained in the magazine is pulled out by the pull-out rewind roller, and after being cut, the pull-out portion is wound around the magazine by the pull-out rewind roller. The cut portion is returned and is conveyed by the conveying roller.

Here, when drawing out the image recording material,
When the drive source is rotated in the forward direction, the pull-out rewind roller is rotated in the forward direction, and at the same time, only one one-way clutch arranged in the gear between the drive source and the transport roller transmits the rotational force to transport. The roller is also rotated in the forward direction, and the image recording material is conveyed. On the other hand, after the image recording material is pulled out and cut, by rotating the drive source in the reverse direction, the pull-out roller is rotated in the reverse direction, and at the same time, the gear between the drive source and the transport roller is rotated. Only the other one-way clutch that is arranged transmits the rotational force. That is, at this time, since the speed change reverse mechanism for speed change and rotation direction reverse is interposed and connected to the drive force transmission system by the other one-way clutch, the reverse rotation of the drive source is rotated by this speed reverse mechanism. The direction is reversed and transmitted, and the transport roller is rotated in the forward direction. As a result, the drawn-out portion of the image recording material is rewound into the magazine by the drawn-out rewinding roller, and at the same time, the cut portion is conveyed by the conveying roller.

As described above, in the image recording apparatus according to the present invention, not only the image recording material contained in the magazine can be pulled out by the single driving source, but also the image after being pulled out from the magazine and cut. The operation of rewinding the drawn-out portion of the recording material to the magazine and the operation of conveying the cut image recording material to the next processing section can be performed at the same time, and the processing time can be shortened. Further, the number of parts and the arrangement space are reduced, and the cost is also reduced.

According to a third aspect of the present invention, there is provided an image recording material conveying apparatus as described in the second aspect.
It is characterized in that the speed change reverse mechanism is constituted by a gear.

In the image recording material conveying device according to the third aspect of the present invention, the speed change / reverse mechanism is composed of a gear, and when the drive source rotates in the reverse direction, the drive force is changed and reversely rotated by the gear to generate a positive direction rotational force. It is transmitted to the transport roller. Therefore, the mechanism is simplified and the rotational force can be reliably transmitted.

Further, by appropriately changing the gear ratio by the gears, it is possible to arbitrarily set the conveying speed of the image recording material and the varying speed thereof in the above two states, and a large conveying speed difference (reduction ratio). You can also get

An image recording material conveying apparatus according to a fourth aspect of the present invention is the image recording material conveying apparatus according to the second aspect.
It is characterized in that the speed change reverse mechanism is constituted by a belt and a pulley.

In the image recording material conveying apparatus according to the fourth aspect, the speed change reverse mechanism is composed of a belt and a pulley, and when the drive source rotates in the reverse direction, the drive force is changed and reversely changed by the belt and the pulley. The direction rotational force is transmitted to the transport roller. Therefore, the mechanism is simplified and the rotational force can be reliably transmitted.

Further, by appropriately changing the gear ratio by the belt and the pulley, the conveying speed of the image recording material in the above two states and the variable speed thereof can be arbitrarily set, and a large conveying speed difference (deceleration) can be obtained. Ratio) can also be obtained.

According to a fifth aspect of the invention, there is provided an image recording material conveying device, which is the first, second, third or fourth aspect.
In the image recording material conveying device described above, the rotation speed of the pull-out rewinding roller and the rotation speed of the conveying roller when the drive source rotates in the reverse direction are different depending on the required conveying amount of the image recording material by the conveying roller. It is characterized by having been done.

In the image recording material conveying device according to the fifth aspect, the rotation speed of the pull-out rewinding roller and the rotation speed of the conveying roller when the drive source rotates in the reverse direction are the required conveying amount of the image recording material by the conveying roller. Differently set accordingly. That is, an operation of rewinding the drawn-out portion of the image recording material after being drawn from the magazine and cut into the magazine by the drawing and rewinding roller and an operation of conveying the cut image recording material to the next processing unit by the conveying roller. The rotation speed of the pull-out rewinding roller (that is, the rewinding speed of the pulling-out portion of the image recording material to the magazine) at the same time
And the rotation speed of the transport roller (that is, the transport speed of the image recording material after cutting) are set differently according to the required transport amount of the image recording material by the transport roller.

For example, when the required conveyance amount of the image recording material after cutting is larger than the required rewinding amount of the drawn portion of the image recording material to the magazine due to factors such as the arrangement position of the cutter, the drive source The deceleration (speed change) ratio at the time of reverse rotation of is set so that the rotation speed of the transport roller is faster than the rotation speed of the pull-out rewind roller. Therefore,
Even if the reverse rotation of the pull-out rewind roller and the forward rotation of the transport roller are stopped at the same time (the operation of rewinding the drawn-out portion of the image recording material to the magazine by the pull-out rewind roller and the transport roller of the cut image recording material Therefore, even if the operation of carrying to the next processing unit is finished at the same time), the rewinding operation and the carrying operation are efficiently completed at the same time without the rewinding incomplete state or the insufficient carrying state. be able to.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 3 shows a schematic overall configuration diagram of an image recording apparatus 10 to which an image recording material conveying apparatus according to a first embodiment of the present invention is applied. 4 is an external perspective view of the image recording apparatus 10.
The image recording apparatus 10 is an apparatus that forms an image by exposing an image on a photothermographic material and thermally developing and transferring the image on an image receiving material.

The image recording apparatus 10 has a box shape as a whole, and the machine base 12 is provided with a front door 13, a side door 15 and the like. By opening each door, the inside of the machine base 12 can be exposed. Note that each door is provided with a safety device by a so-called interlock mechanism (not shown) so that the power of a predetermined portion can be turned off at the same time when the door is opened.

On the upper surface of the machine base 12 of the image recording apparatus 10, a mounting table 14 for mounting the original G is provided. A rectangular hole is provided in the mounting table 14 and a transparent glass plate 16 is attached thereto.
Presser cover 1 that can be opened and closed on the side of 6 on the back side of the device
8 are attached.

On the other hand, the photosensitive material magazine 20 is arranged in the machine base 12 of the image recording apparatus 10, and the photosensitive material 22 is wound and stored in a roll shape. This photosensitive material 22
The widthwise dimension of is, for example, 135 mm. The photosensitive material 22 has a photosensitive silver halide, a binder, a dye-donor substance, and a reducing agent on a support, and its photosensitive (exposure) surface is wound obliquely downward to the right of the apparatus. There is.

The photosensitive material magazine 20 is formed in a length corresponding to the dimension of the photosensitive material 22 in the width direction, and has a rectangular shape from a body part (not shown) and a pair of side frame parts fixed to both ends of the body part. It is configured in a box shape and is housed in a housing portion provided on the machine base 12. Here, the photosensitive material magazine 20 is arranged in a state in which the taking-out port 20A of the photosensitive material 22 provided at the corner portion of the square is located at the uppermost position,
The photosensitive material 22 is constructed so as to be drawn obliquely upward to the right.

In the accommodating portion of the sensitive material magazine 20, an inner door (not shown) is arranged at the drawn-out portion of the sensitive material magazine 20, and when the sensitive material magazine 20 is accommodated in the accommodating portion, the machine does not operate. Even when the front door 13 of the table 12 is opened, external light does not enter the accommodation portion, and the accommodated photosensitive material 22 is prevented from being inadvertently exposed to light.

Photosensitive material outlet 20 of photosensitive material magazine 20
A nip roller 24 as a pull-out roller is arranged near A. By rotating the nip roller 24, the photosensitive material 22 can be pulled out from the photosensitive material magazine 20 and conveyed. The speed at which the photosensitive material 22 is drawn out and conveyed by the nip roller 24 is, for example, 50 mm / sec.
It has become.

A cutter 26 is provided above the nip roller 24.
Are arranged, and the photosensitive material 22 pulled out from the photosensitive material magazine 20 by a predetermined length can be cut by the nip roller 24. The cutter 26 is, for example, a cutter composed of a fixed blade and a rotary blade, and the rotary blade can be moved vertically by a wire or the like in the conveying direction to mesh with the fixed blade to cut the photosensitive material 22. It should be noted that after the cutter 26 is actuated, the nip roller 24 rotates in the reverse direction, and is rewound to the extent that the tip of the photosensitive material 22 is slightly nipped by the nip roller 24. The operation of the cutter 26 and the rewinding operation are independently performed by a drive system different from the operation of pulling out the photosensitive material 22 of the nip roller 24.

Above the cutter 26, a conveying roller 28,
A transport roller 30 and a guide plate 32 are arranged,
The photosensitive material 22 cut into a predetermined length can be conveyed to the exposure unit 34. These transport rollers 28 and 30 also rotate in the same manner as the nip roller 24, so that the transport speed is, for example, 50 mm / sec or 30 mm / sec.
The photosensitive material 22 can be conveyed by switching to and.

The exposing section 34 is located between the carrying rollers 36 and 38, and the photosensitive material 22 passes through between the carrying rollers as an exposing section (exposure point). The transport speed of the photosensitive material 22 by the transport rollers 36 and 38 (passing speed of the exposure unit) is
For example, it is 50 mm / sec.

Above the exposed portion 34 and the transparent glass plate 1
An exposure device 40 is provided in the space below 6. The exposure device 40 includes a lamp unit 42, a mirror unit 44, a filter unit 46, and a mirror unit 4.
8 and a sixth reflection mirror 50.

The lamp unit 42 is composed of a rod-shaped halogen lamp 52 as a light source and a first mirror 54, and the mirror unit 44 is composed of a second mirror 56 and a third mirror 58. The mirror unit 48 is composed of a fourth mirror 60 and a fifth mirror 62.

The filter unit 46 includes three types (C, M, Y) of color adjustment filters 64, a lens 66,
And a diaphragm mechanism 68. The filter unit 46 is arranged between the third mirror 58 of the mirror unit 44 and the fourth mirror 60 of the mirror unit 48, and is located on the optical path of the reflected light from the document G. As a result, the document G (the third mirror 5 of the mirror unit 44)
Image formation and color correction of the reflected light from 8) can be performed.

This exposure apparatus 40 irradiates the original G mounted on the mounting table 14 in a slit shape with the light from the halogen lamp 52 during normal (actual magnification) exposure, while the lamp unit 42 and The mirror unit 44 moves along the document G (mounting table 14), and the reflected light from the document G is exposed to the exposure unit 3
The photosensitive material 22 located at No. 4 can be scanned and exposed. Further, when the exposure is performed with the magnification changed, the filter unit 46 and the mirror unit 48 are moved according to the magnification, and the lamp unit 42 and the mirror unit 44 are moved along the document G as described above. Exposure unit 3
The photosensitive material 22 located at No. 4 is exposed by scanning.

A switchback unit 7 is provided on the side of the exposure unit 34.
0 is provided, and a water application section 72 is provided below the exposure section 34. The photosensitive material 22 that has risen from the photosensitive material magazine 20 and has been exposed in the exposure section 34 is once sent to the switchback section 70, and then the conveyance roller 3
6, the reverse rotation of the transport roller 38 and the transport roller 30 causes the water to pass through the exposure unit 34 again, and is fed to the water coating unit 72 via the branching unit 74 provided immediately below the transport roller 30.

A coating tank 76 is arranged in the water coating section 72. The coating tank 76 is formed in a dish shape, and is filled with water as an image forming solvent. Also,
The bottom wall of the coating tank 76 is slidably supported by a rail provided on the machine base 12, and is detachable by sliding it to the front side of the machine base 12 with the front door 13 open. There is.

A supply roller 78 is arranged at an end of the coating tank 76 on the upstream side in the conveying direction of the photosensitive material 22, and a pair of squeeze rollers 80 are arranged at an end on the downstream side in the conveying direction of the photosensitive material 22. It is arranged.

Supply roller 78 and squeeze roller 80
Are, for example, both silicon rubber rollers having an outer diameter of 18 mm, and the rubber hardness is, for example, 60 ± 5 for the supply roller 78 and 40 ± 5 for the squeeze roller 80.
It is said to be 5. Further, a predetermined pressing force (for example, 1 kg) is applied to both ends of each roller in the longitudinal direction.

A guide plate 82 is attached above the coating tank 76 so as to face the coating tank 76. The guide plate 82 is made of a metal material such as aluminum, and the space between the guide plate 82 and the coating tank 76 is a passage for the photosensitive material 22. Therefore, when the coating tank 76 is filled with water, the photosensitive material 22
Is sent between the guide plate 82 and the application tank 76 to apply water, and is squeezed by the squeeze roller 80 so that excess water is removed.

In this case, the water coating length of the photosensitive material 22 between the guide plate 82 and the coating tank 76 (the length of the photosensitive material 22 passing through water) is, for example, 100 mm. The immersion time is 2.5 seconds, for example. Further, the photosensitive material 22 after the water coating process (that is, after passing through the squeeze roller 80) has 11 ± 1 gr / m 2.
² water is applied. Further, a ceramic heater is attached to the upper part of the guide plate 82, and water can be heated (for example, 40 ± 3 ° C.) and filled in the coating tank 76.

An auxiliary overflow tank 84 is arranged on the machine base 12 below the coating tank 76, and a replenishment tank 86 is arranged immediately below the auxiliary overflow tank 84. The replenishment tank 86 is filled with water as an image forming solvent, and a pipe, a pump,
Also, it is connected to the coating tank 76 via a water filter 88 and the like. As a result, the water in the replenishment tank 86 can be fed to and filled in the coating tank 76, and the coating tank 7
The water in 6 can be discharged (returned) to the refill tank 86.

A heat development transfer section 90 is provided on the side of the water application section 72.
Is placed and is coated with water (squeeze roller 80
The photosensitive material 22 (after having passed through) is fed in.

On the other hand, the machine base 12 on the side of the photosensitive material magazine 20.
An image receiving material 92 is arranged in the image receiving material 94.
Is rolled up and stored. Image receiving material 94
Is smaller than the photosensitive material 22 (for example, 1
27 mm) is formed. A dye fixing material having a mordant is applied to the image forming surface of the image receiving material 94, and the image forming surface is wound obliquely downward to the right of the apparatus.

Like the photosensitive material magazine 20, the receiving material magazine 92 is formed in a rectangular box shape from a body and a pair of side frame portions fixed to both ends of the body.
Can be pulled out to the front side (the front side in FIG. 1, that is, the width direction of the rolled image receiving material 94). Here, this receiving material magazine 92 is arranged in a state in which the take-out port 92A of the image receiving material 94 provided at the corner portion of the square is located at the uppermost position, similarly to the above-mentioned photosensitive material magazine 20. The reference numeral 94 is a structure that is pulled out obliquely to the upper right.

Image receiving material outlet 92 of receiving material magazine 92
A nip roller 96 is disposed in the vicinity of A, and the image receiving material 94 can be pulled out from the material receiving magazine 92 and conveyed, and the nip can be released.

A cutter 98 is arranged above the nip roller 96. Like the cutter 26 for the photosensitive material, the cutter 98 is, for example, a cutter of a type including a fixed blade and a rotary blade, and the rotary blade is moved vertically by a wire or the like in the conveying direction to engage with the fixed blade. As a result, the image receiving material 94 drawn from the receiving material magazine 92 is cut into a shorter length than the photosensitive material 22.

Above the cutter 98, the photosensitive material magazine 20
Located on the side of the conveyance roller 100, the conveyance roller 10
2 and the guide plates 104A and 104B are arranged, and the image receiving material 94 cut into a predetermined length can be conveyed to the heat development transfer section 90.

Here, as shown in detail in FIGS.
One roller portion 100A of the transport roller 100 is supported by a guide plate 104A located on the opposite side of the photosensitive material magazine 20, and the lower end portion of this guide plate 104A is rotatably supported by a support shaft 106. ing. Therefore, by rotating the guide plate 104A around the support shaft 106, the guide plate 104A is separated from the corresponding guide plate 104B together with one roller portion 100A of the conveying roller 100 to open the conveying path of the image receiving material 94. It is a configuration that can.

Further, at the upper end of the guide plate 104A,
A pressing spring portion 108 is provided so as to be bent in the opposite direction to the other guide plate 104B. This pressure spring part 1
Reference numeral 08 corresponds to a second peeling / conveying unit 150, which will be described later, and normally contacts the second peeling / conveying unit 150 to press the guide plate 104A toward the guide plate 104B.

On the other hand, the carrying roller 102 is the carrying roller 1
The image receiving material 94 conveyed from 00 can be sent to the heat development transfer section 90.

The heat development transfer section 90 is composed of a heating drum 110 and an endless pressure contact belt 112, and a laminating roller 114 is arranged on the outer circumference of the heating drum 110 on the water application section 72 side.

The laminating roller 114 is a roller having an outer diameter of, for example, 18 mm at the central portion in the axial direction, the outer peripheral surface of which is coated with silicon rubber (for example, a thickness of 4.0 mm), and the rubber hardness thereof is almost the same. It is set to 60 degrees. Further, the laminating roller 114 is applied with a predetermined pressing force (for example, 4 kg) at both ends in the longitudinal direction, so that the heating drum 11 is heated.
It is pressed against the outer circumference. This laminating roller 114 is
It is connected to a drive motor (not shown), and the drive force of the drive motor is transmitted to rotate the drive motor.
Here, the photosensitive material 22 or the image receiving material 9 by the squeeze roller 80 or the conveying roller 102 is compared with the conveying speed of the photosensitive material 22 and the image receiving material 94 by the laminating roller 114.
4 is set to be slightly slower (for example, about 2%), whereby the photosensitive material 22 and the image receiving material 94 are subjected to a back tension when being fed to the laminating roller 114. It is like this.

The heating drum 110 is made of a thin aluminum pipe. In this embodiment, the heating drum 110 is formed to have a thickness of 3 mm, an outer diameter of 130 mm, and an effective width in the axial direction of 158 mm. Teflon treatment (fluorine coating treatment) is applied to the outer peripheral surface of the heating drum 110, and black heat resistant coating is applied to the inner peripheral surface thereof.

Photosensitive material 2 conveyed to heat development transfer section 90
2 is fed between the laminating roller 114 and the heating drum 110, the image receiving material 94 is synchronized with the conveyance of the photosensitive material 22, and the photosensitive material 22 is preceded by a predetermined length (20 mm in this embodiment). In this state, it is fed between the laminating roller 114 and the heating drum 110 to be superposed. In this case, since the image receiving material 94 is smaller than the photosensitive material 22 in both the width direction and the length direction, the peripheral portion of the photosensitive material 22 is projected from the peripheral portion of the image receiving material 94 on all four sides. It is a structure that can be overlapped.

Further, the cam 1 is provided on the side wall of the heating drum 110.
16 is fixed. The cam 116 is engageable with a peeling claw 134 and a peeling claw 154 described later,
The peeling claw 134 and the peeling claw 154 are adapted to rotate as the heating drum 110 rotates. Further, a halogen lamp 118 is arranged inside the heating drum 110. The halogen lamp 118 has an output of 450 W, for example, and can raise the temperature of the surface of the heating drum 110 (for example, about 80 ° C.).

The endless pressure contact belt 112, which is in pressure contact with the outer periphery of the heating drum 110, has a structure in which a woven fabric material is covered with rubber. In the present embodiment, the widthwise dimension is 145 mm.
Is formed. The woven material is an aromatic polyamide fiber (for example, Kevlar or Nomex: either d
It is sewn with heat-resistant fibers such as u Pont (registered trademark). The coating rubber is silicon rubber containing carbon and has conductivity.

The endless pressure contact belt 112 is wound around four winding rollers 120, 122, 124 and 126, and the endless outer side between the winding rollers 120 and 126 is the heating drum 110. Is pressed against the outer circumference of.

The winding rollers 120, 122, 124 are each made of steel and electroless nickel plated. Further, the winding roller 124 is formed in a taper shape in which both ends in the axial direction expand outward, and 0.5 kg at both ends in the longitudinal direction (practical range: 0.
A pressing force of 3 to 1.0 kg) is applied in a direction away from the heating drum 110. As a result, the endless pressure welding belt 1
12 is kept at a predetermined tension and the deviation is prevented.

On the other hand, the winding roller 126 is a rubber roller, and is further connected to a drive motor through a drive system (not shown). The driving force of the drive motor is transmitted to rotate the winding roller 126. It has become so. When the winding roller 126 is rotated, the endless pressure welding belt 112 wound around the winding roller 126 is rotated, and accordingly, the rotational force of the endless pressure welding belt 112 causes friction with the heating drum 110. The force is transmitted to the heating drum 110, and the heating drum 110 is driven to rotate. In this case, the rotating peripheral speed of the heating drum 110 is 35 mm / sec.

The photosensitive material 22 and the image receiving material 94, which are superposed by the laminating roller 114, are approximately ½ round of the heating drum 110 between the heating drum 110 and the endless pressure contact belt 112 in the superposed state ( Winding roller 1
It is configured so as to be sandwiched and conveyed between (20) and the winding roller 126). Further, when the laminated photosensitive material 22 and image receiving material 94 are completely contained between the heating drum 110 and the endless pressure contact belt 112, the heating drum 1
Reference numeral 10 temporarily stops the rotation (for example, for 5 to 15 seconds) and heats the sandwiched photosensitive material 22 and image receiving material 94. When the photosensitive material 22 is heated during the nip and conveyance and when stopped, it releases a movable dye, and at the same time, the dye is transferred to the dye fixing layer of the image receiving material 94 to obtain an image.

Below the winding roller 126, a first peeling / conveying section 130 is arranged corresponding to the heating drum 110. In the first peeling and conveying section 130, the heating drum 11 on the downstream side in the material supply direction of the endless pressure welding belt 112.
A bending guide roller 132 is arranged on the side of 0.
The bending guide roller 132 is a rubber roller made of silicon rubber, and rotates by receiving the driving force of the driving motor. Further, the bending guide roller 132 is pressed against the outer periphery of the heating drum 110 with a predetermined pressure (for example, 600 g). Therefore, the heating drum 110 and the endless pressing belt 11 are pressed.
The photosensitive material 22 or the image receiving material 9 conveyed by
4 can be further pinched and conveyed.

A peeling claw 134 is rotatably supported axially below the heating drum 110 on the downstream side of the bending guide roller 132 in the material supply direction, and a pinch roller 136 is further provided.
Is arranged.

The peeling claw 134 corresponds to the outer periphery of the heating drum 110, and can be brought into contact with or separated from the heating drum 110 by the operation of the cam 116 described above. When the peeling claw 134 is in contact with the heating drum 110, the endless pressure welding belt 1
Of the photosensitive material 22 and the image receiving material 94 that are nipped and conveyed between the recording material 12 and the heating drum 110, only the leading ends of the photosensitive materials 22 that are superposed in a state of being preceded by a predetermined length are engaged, and this leading end is heated. It can be peeled off from the outer periphery of the drum 110. On the other hand, the pinch roller 136 has the peeling claw 134.
The peeling claw 134 is operated in conjunction with the heating drum 110.
In the state of being separated from, the bending guide roller 132 is pressed against the bending guide roller 132 with a predetermined pressure (for example, 600 g). Therefore, the photosensitive material 22 peeled by the peeling claw 134 is
While being pressed by the pinch roller 136, it is wound around the bending guide roller 132 and moved laterally.

A guide plate 138 is arranged on the side of the bending guide roller 132 and the peeling claw 134. Further, at the tip of the guide plate 138, a sensitive material discharge roller 140, a backup roller 142, and a guide roller 144 are provided. Are arranged. The sensitive material discharge rollers 140 are a pair of so-called corrugation rollers that mesh with each other, and the backup roller 142 is in contact with one of the sensitive material discharge rollers 140. Thereby, the bending guide roller 1
Photosensitive material 2 that is moved sideways while being wound around 32
2 can be further conveyed and accumulated in the waste photosensitive material storage box 146. The rotation speed of the photosensitive material discharge roller 140 is set to be 1 to 3% faster than the rotation peripheral speed of the heating drum 110, and the photosensitive material 22 is loosened and the guide plate 13 is loosened.
8 is prevented from sticking.

A second peeling / conveying unit 150 is arranged on the side of the peeling claw 134 and just below the heating drum 110, corresponding to the heating drum 110. This second peeling and conveying section 150
In the above, the peeling roller 15 is provided directly below the heating drum 110.
2 and the peeling claw 154 are arranged. Peeling roller 15
2 is a rubber roller made of silicon rubber and has a surface roughness of 12.
It is set to 5 S or less, and the drive force of the drive motor is transmitted to rotate. Also, the peeling roller 152
Is a predetermined pressure (for example, 40
0 g). Therefore, the peeling roller 152
Is an image receiving material 94 that moves together with the heating drum 110,
By acting together with the peeling claw 154, it can be peeled from the outer periphery of the heating drum 110 to guide the bending.

A guide plate 156 and a receiving material discharging roller 158 are arranged below the peeling roller 152 and the peeling claw 154, and guide and convey the image receiving material 94 peeled from the heating drum 110 by the peeling roller 152 and the peeling claw 154. can do. Further, the receiving material discharge roller 158
The material receiving guide 160, the material receiving roller 16
2, a material receiving discharge roller 164 and a guide roller 166 are arranged, and the image receiving material 94 carried by the material receiving discharge roller 158 can be further carried and discharged to the tray 168. Further, one roller portion 162A of the material receiving and discharging roller 162 is supported by the material receiving guide 160, and further, the end of the material receiving guide 160 on the material receiving and discharging roller 164 side is rotatable by the support shaft 170. Supported by. Therefore, the receiving guide 1 is provided around the support shaft 170.
By rotating 60, the material receiving guide 160 can be separated from the other roller portion 162B of the material receiving discharge roller 162 and the guide roller 166 to open the conveyance path of the image receiving material 94.

Further, in the image recording apparatus 10 having the above-mentioned structure, the heat development transfer section 90 is constructed as a single development unit as a whole, and the first peeling and conveying section 1 is provided.
30 and the second peeling / conveying unit 150 are configured as a single peeling unit as a whole, and are in a direction opposite to the position where the water coating unit 72 is arranged with respect to the machine base 12 (opposite to the photosensitive material magazine 20 and the receiving material magazine 92). Side). Therefore, even when the photosensitive material 22 or the image receiving material 94 is jammed during transport (so-called jam), the heat development transfer section 90 or the first peeling transport section is opened after the side door 15 of the machine base 12 is opened. This can be easily eliminated by moving the 130 and the second peeling / conveying unit 150 and the like open. Further, here, the image recording apparatus 10 having the above-described configuration can be externally mounted with the sensitive material auxiliary supply unit 180. The sensitive material auxiliary supply unit 180 is provided on the machine base 12
It can be connected to the side of the magazine, and inside it is a sensitive material magazine 182.
Is arranged. The photosensitive material magazine 182 has the same structure as that of the photosensitive material magazine 20 described above.
Is rolled up and stored. The widthwise dimension of the photosensitive material 184 is different from that of the photosensitive material 22 housed in the photosensitive material magazine 20, and is used when recording an image of a size different from that of the photosensitive material 22. The photosensitive material magazine 182 is arranged in a state where an outlet 182A for the photosensitive material 184 provided at a square corner portion is located at an upper corner portion, and the photosensitive material 184 is pulled out upward.

Photosensitive material ejection port 1 of photosensitive material magazine 182
A nip roller 186 as a pull-out rewinding roller is arranged near 82A. This nip roller 186
By rotating, the photosensitive material 184 can be pulled out from the photosensitive material magazine 182 and conveyed. The nip roller 186 can be rotated in forward and reverse directions by a drive mechanism described in detail later, and by rotating in the reverse direction, the photosensitive material 184 is sensed to such an extent that the tip of the photosensitive material 184 is slightly nipped. The material magazine 182 can be rewound.

Above the nip roller 186, the cutter 1
88 is arranged and the photosensitive material 1 is drawn out from the photosensitive material magazine 182 by a predetermined length by the nip roller 186.
84 can be cut. The cutter 188 has the same structure as the cutter 26 described above, and is independently operated by a drive system different from the operation of drawing the photosensitive material 184 of the nip roller 186.

The guide plate 1 is provided above the cutter 188.
90 is arranged, and further, a conveying roller 192 is arranged at a terminal end portion of the guide plate 190 (a connection portion with the machine base 12). The transport roller 192 is driven by the same drive mechanism as the nip roller 186, which will be described later in detail. As a result, the photosensitive material 184 after being cut by the cutter 188 is guided by the guide plate 190 and the transport roller 1.
It is configured so that it can be guided and conveyed to 92 and fed to the conveyance rollers 28 in the machine base 12.

Here, the nip roller 18 which pulls out and conveys the photosensitive material 184 from the above-mentioned photosensitive material magazine 182.
6 and the drive mechanism of the carrying roller 192 for carrying the photosensitive material 184 cut into a predetermined length to the carrying roller 28 of the machine base 12 will be described.

FIG. 1 shows the details of the drive mechanism for the nip roller 186 and the transport roller 192, and FIG. 2 shows a schematic perspective view of this drive mechanism corresponding to FIG.

The nip roller 186 is composed of a driving roller portion 186A and a driven roller portion 186B. A gear 200 is attached to the shaft of the roller portion 186A, and the gear 200 meshes with the small gear portion 202A of the gear 202. The large gear portion 202B of the gear 202 meshes with a gear 206 provided on a rotating shaft of a motor 204 as a drive source. Motor 204
Is the forward direction (direction of arrow A in FIGS. 1 and 2) and the reverse direction (direction of FIG. 1).
2 and the direction of arrow B in FIG. 2).

As a result, when the motor 204 rotates in the forward direction, the rotational force is transmitted to rotate the roller portion 186A in the forward direction (direction of arrow C in FIGS. 1 and 2), and the motor 2
When 04 rotates in the reverse direction, the roller portion 186A rotates in the reverse direction.

On the other hand, a gear 208 is in mesh with the gear 200, and a gear 210 is in mesh with the gear 208. A large gear portion 212A of a gear 212 meshes with the gear 210, and a gear unit 214 is arranged near the gear 212.

The gear unit 214 is composed of a gear 216, a gear 218, and a gear 220, and has a shaft 222.
It is supported coaxially by. The gear 216 has a shaft 22.
It is fixed integrally with No. 2 and always rotates with the shaft 222.

On the other hand, the gear 220 is the one-way clutch 2
It is connected to and supported by the shaft 222 via 24 and meshes with the gear 210. On the other hand, the gear 218 is connected to and supported by the shaft 222 via the one-way clutch 226, and meshes with the small gear portion 212B of the gear 212. In this case, the driving force transmitting directions of the one-way clutch 224 and the one-way clutch 226 are the same, and therefore, the gear 220 and the gear 218 are both rotated only in one direction (direction of arrow D in FIGS. 1 and 2). This is a configuration for transmitting the rotational force to the shaft 222.

A gear 228 meshes with the gear 216 of the gear unit 214. The gear 228 is connected to the drive side roller 192A of the transport roller 192 described above.

Next, the operation of the first embodiment will be described. In the image recording device 10 having the above structure, the photosensitive material magazine 2
In a normal image recording process using the photosensitive material 22 housed in 0, the original G is placed on the placing table 14 (transparent glass plate 16) and the pressing cover 18 is closed. Etc. are designated and a start instruction is given, image processing is started.

That is, with the photosensitive material magazine 20 set, the nip roller 24 is actuated to move the photosensitive material 22.
Are drawn out by the nip roller 24 at a speed of, for example, 50 mm / sec. When the photosensitive material 22 is pulled out by a predetermined length, the cutter 26 is actuated to cut the photosensitive material 22 into a predetermined length, and is further conveyed by the conveying roller 28 and the conveying roller 30 at a speed of 50 mm / sec, for example. After that, the photosensitive material 22 transported by the transport rollers 28 and 30
Further passes through the exposure section 34 at a predetermined speed (for example, 50 mm / sec) by the transport rollers 36 and 38. At the same time when the photosensitive material 22 is conveyed (passes through the exposure unit 34), the exposure device 40 operates.

In the exposure device 40, at the time of normal (equal magnification) exposure, while the light from the halogen lamp 52 is applied to the original G placed on the placing table 14 in a slit shape, the lamp unit 42 and the mirror are provided. The unit 44 is moved along the document G (mounting table 14). As a result, the reflected light from the document G reaches the filter unit 46 via the first mirror 54 of the lamp unit 42, the second mirror 56 and the third mirror 58 of the mirror unit 44. In the filter unit 46, image formation and density (light amount) adjustment are performed by the lens 66 and the diaphragm mechanism 68, and color correction is performed by the color adjustment filter 64. The light passing through the filter unit 46 passes through the fourth mirror 60 and the fifth mirror 62 of the mirror unit 48, and then the sixth reflecting mirror 5
It is reflected by 0 and is scanned and exposed to the photosensitive material 22 located in the exposure section 34.

On the other hand, when the exposure is performed while changing the magnification, the filter unit 46 and the mirror unit 48 are moved to predetermined positions on the optical path according to the designated magnification, and the lamp unit 42 is also used as described above. Also, the mirror unit 44 moves along the document G to scan and expose the photosensitive material 22 located in the exposure section 34.

The photosensitive material 22 that has been exposed by the exposure device 40 is once sent to the switchback section 70, and then passes through the exposure section 34 again by the reverse rotation of the transport rollers 36, 38 and 30, and the branch section 74. After passing through, it is sent to the water application section 72.

In the water application section 72, the conveyed photosensitive material 2
2 is sent between the guide plate 82 and the coating tank 76 by the drive of the supply roller 78, and is nipped and conveyed by the squeeze roller 80. Here, the photosensitive material 22
Water is applied to the squeeze roller 80, and the squeeze roller 80 removes excess water to pass through the water application section 72. The photosensitive material 22 coated with water as the image forming solvent in the water coating section 72 is sent to the thermal development transfer section 90 by the squeeze roller 80.

On the other hand, as the scanning exposure of the photosensitive material 22 is started, the image receiving material 94 is also pulled out from the receiving material magazine 92 by the nip roller 96 and conveyed. When the image receiving material 94 is pulled out by a predetermined length, the cutter 98 operates and the image receiving material 94 is cut into a predetermined length. Cutter 98
After the operation of, the image receiving material 94 after cutting is guided by the guide plate 104.
Conveyor roller 10 while being guided by A and 104B
0, it is conveyed by the conveyance roller 102, and is in a standby state immediately before the thermal development transfer section 90.

In the heat development transfer section 90, when it is detected that the photosensitive material 22 is fed between the outer periphery of the heating drum 110 and the laminating roller 114 by the squeeze roller 80, the feeding of the image receiving material 94 is restarted. Laminating roller 11
4 and the heating drum 110 is operated. As a result, the photosensitive material 22 and the image receiving material 94 superposed by the laminating roller 114 remain in the superposed state and the heating drum 110 and the endless pressure contact belt 112.
It is sandwiched between the heating drum 110 and the heating drum 110, and is conveyed over almost 1/2 circumference (between the winding roller 120 and the winding roller 126). Further, the light-sensitive material 22 that is overlaid
The image receiving material 94 is heated by the heating drum 110. When the photosensitive material 22 is heated during the nip and conveyance and when stopped, it releases a movable dye, and at the same time, the dye is transferred to the dye fixing layer of the image receiving material 94 to obtain an image.

After that, when the photosensitive material 22 and the image receiving material 94 are sandwiched and conveyed and reach the bending guide roller 132 on the side of the heating drum 110, the peeling claw 134 is moved by the cam 116, and the peeling claw 134 is moved by a predetermined length from the image receiving material 94. The peeling claw 134 engages with the leading end of the photosensitive material 22 that is conveyed in advance to peel the leading end of the photosensitive material 22 from the outer periphery of the heating drum 110. Further, the return movement of the peeling claw 134 causes the pinch roller 136 to press the photosensitive material 22.
The photosensitive material 22 is wound around the bending guide roller 132 while being pressed by the pinch roller 136, and is moved laterally. The photosensitive material 22 wound around the bending guide roller 132 further includes a guide plate 138 and a guide roller 144.
Is conveyed by the photosensitive material discharge roller 140 while being guided to the sheet, and accumulated in the waste photosensitive material storage box 146.

On the other hand, the heating drum 1 is separated from the photosensitive material 22.
An image receiving material 94 that moves while being in close contact with 10.
Are sent to the peeling roller 152. When the tip of the image receiving material 94 is nipped by the peeling roller 152 (between the heating drum 110), the peeling claw 15 is again moved by the cam 116.
4 is moved, the peeling claw 154 engages with the tip of the image receiving material 94, and the image receiving material 94 is peeled from the outer periphery of the heating drum 110.

The image receiving material 94 peeled from the outer circumference of the heating drum 110 by the peeling claw 154 is further wound around the peeling roller 152 and moved downward, and is conveyed by the material receiving roller 158 while being guided by the guide plate 156. Further, while being guided by the material receiving guide 160, the material is conveyed by the material receiving discharge roller 162 and the material receiving discharge roller 164, and is discharged to the tray 168.

When carrying out the image recording processing for a plurality of sheets, the above steps are successively carried out.

On the other hand, when the image recording process is performed using the photosensitive material 184 having a size different from that of the photosensitive material 22 housed in the photosensitive material magazine 20 described above, the photosensitive material auxiliary supply unit 180 is used.
Is activated.

That is, the photosensitive material 184 contained in the photosensitive material magazine 182 is drawn out by the nip roller 186, cut by the cutter 188, and then conveyed by the conveying roller 192 and fed to the conveying roller 28.

Here, when the photosensitive material 184 is pulled out, the motor 204 is moved in the forward direction (direction of arrow A in FIGS. 1 and 2).
When it is rotated to, the rotational force is transmitted via the gear 202, the gear 200 rotates in the normal direction, and the nip roller 186 (roller portion 186A) rotates. Thereby, the photosensitive material 18
4 is pulled out from the sensitive material magazine 182.

On the other hand, in parallel with the rotation of the nip roller 186, the carrying roller 192 is also rotated. That is, when the gear 200 is rotated by the rotation of the motor 204 in the forward direction (direction of arrow A in FIGS. 1 and 2), the rotational force is transmitted via the gear 208 and the gear 210 is rotated. Further, the rotational force of the gear 210 directly affects the gear unit 214.
Of the gear 220 and the gear 218 via the gear 212.

Since the gear 220 is provided with the one-way clutch 224 for transmitting the rotation of the gear 220 (direction of arrow D in FIGS. 1 and 2), the rotational force of the gear 220 is transmitted to the shaft 222. The shaft 222 rotates. On the other hand, the one-way clutch 226 provided in the gear 218
Does not transmit the rotation of the gear 218 (the direction opposite to the arrow D in FIGS. 1 and 2), the gear 218 only rotates independently of the shaft 222 (so-called idle rotation).

As a result, only the rotational force transmitted to the gear 220 is transmitted to the shaft 222, and the gear 216 is rotated together with the shaft 222.

The rotational force of the gear 216 is transmitted to the gear 228, which causes the carrying roller 192 to rotate in the forward direction. As a result, the photosensitive material 184 pulled out by the nip roller 186 is further conveyed by the conveying roller 192.

Then, when the photosensitive material 184 is pulled out by a predetermined length, the cutter 188 is operated and the photosensitive material 184 is cut into a predetermined length.

After the photosensitive material 184 is pulled out and cut into a predetermined length, the motor 204 is rotated in the reverse direction (see FIGS. 1 and 2).
It is rotated in the direction of arrow B).

When the motor 204 rotates in the reverse direction, the gear 202
The rotational force is transmitted through the gear 200 to rotate the gear 200 in the reverse direction, and the nip roller 186 (roller portion 186A) is rotated in the reverse direction. As a result, the photosensitive material 184 is transferred to the photosensitive material magazine 1.
It is rewound to 82.

On the other hand, when the gear 200 rotates in the reverse direction by the rotation of the motor 204 in the reverse direction (the direction of arrow B in FIGS. 1 and 2), the rotational force is transmitted via the gear 208 and the gear 210.
Is rotated. Further, the rotational force of the gear 210 is directly applied to the gear 220 of the gear unit 214 as described above.
It is also transmitted to the gear 218 via the gear 212.

Since the one-way clutch 224 provided on the gear 220 does not transmit the rotation of the gear 220 (the direction opposite to the arrow D direction in FIGS. 1 and 2) to the shaft 222, the gear 220 is different from the shaft 222. It only separates and rotates (so-called idle rotation). On the other hand, the one-way clutch 226 provided in the gear 218 transmits the rotation of the gear 218 (direction of arrow D in FIGS. 1 and 2) to the shaft 222, so that the rotation of the gear 218 causes the shaft 222 to rotate.

As a result, only the rotational force transmitted to the gear 218 is transmitted to the shaft 222, and the gear 216 is rotated together with the shaft 222. In this case, the rotation of the gear 218 is
Since the speed is increased via the gear 212, the gear 218, that is, the gear 216 rotates at a speed (for example, 4 times) higher than that during the normal rotation of the motor 204 described above.

The rotational force of the gear 216 is transmitted to the gear 228, which causes the carry roller 192 to rotate in the forward direction. As a result, the photosensitive material 184 after being pulled out by the nip roller 186 and cut by the cutter 188.
Is conveyed at a speed different from the conveying speed at the time of drawing (accelerated to about 4 times).

As described above, the drive mechanism (photosensitive material 1) applied to the photosensitive material auxiliary supply section 180 according to the first embodiment.
In the pulling-out / rewinding / conveying drive system 84), when the motor 204 is rotated in the forward direction when the photosensitive material 184 is pulled out, the nip roller 186 is rotated in the forward direction, and the motor 204 and the conveying roller are moved. One-way clutch 224 arranged in gear 220 between 192
Only the rotational force is transmitted to the conveying roller 192 and the conveying roller 192 is also rotated in the forward direction, so that the photosensitive material 184 is conveyed. On the other hand, after the photosensitive material 184 is pulled out and cut, by rotating the motor 204 in the reverse direction, the nip roller 186 is rotated in the reverse direction, and at the same time, the motor 204 is rotated.
Only the other one-way clutch 226 arranged in the gear 218 between the transfer roller 192 and the conveying roller 192 transmits the rotational force. That is, at this time, the other one-way clutch 2
Since a gear 212 for speed change and rotation direction reversal is interposed and connected to the driving force transmission system by 26, the motor 2
The reverse rotation of 04 is transmitted with the rotation direction thereof being reversed by the gear 212, and the transport roller 192 is rotated in the forward direction. As a result, the drawn-out portion of the photosensitive material 184 is rewound by the nip roller 186 to the photosensitive material magazine 182, and at the same time, the cut portion is conveyed by the conveying roller 192.

As described above, in the drive mechanism applied to the photosensitive material auxiliary supply section 180 according to the first embodiment, the photosensitive material 184 contained in the photosensitive material magazine 182 is pulled out by the single motor 204. Not only can you
The operation of rewinding the drawn-out portion of the photosensitive material 184 after being drawn from the sensitive material magazine 182 and cut to the sensitive material magazine 182 and the operation of conveying the cut photosensitive material 184 to the next processing unit can be performed at the same time. it can. Therefore, the processing time can be significantly reduced. Further, it is not necessary to separately arrange a driving source such as a motor in each of the pull-out / conveyance drive system for the photosensitive material 184 and the subsequent conveyance drive system, and the speed control does not have to be performed independently. To do. Further, since the motor 204 can be driven and used in the most effective rotation torque region, the driving force of the motor 204 can be effectively and efficiently used, and complicated control is not required.

Further, in the drive mechanism applied to the photosensitive material auxiliary supply unit 180 according to the first embodiment, the speed change reverse mechanism is constituted by the gear 212, and when the motor 204 rotates in the reverse direction, this gear is rotated. The driving force is changed in speed and reversed by 212, and the conveyance roller 192 is used as a forward direction rotational force.
Is transmitted to Therefore, the mechanism is simplified and the rotational force can be reliably transmitted.

Further, the motor 204 and the nip roller 18
6 and the gear ratio between the motor 204 and the conveying roller 192 are appropriately changed to arbitrarily set the conveying speed of the photosensitive material 184 in the above-described two states and the variable speed thereof. It is also possible to obtain a large transport speed difference (reduction ratio).

Further, in the drive mechanism applied to the photosensitive material auxiliary supply section 180 according to the first embodiment, the motor 204
The rotation speed of the nip roller 186 and the rotation speed of the conveyance roller 192 during the reverse rotation of
It is set differently according to the required transport amount of the photosensitive material 184 according to. That is, the operation of rewinding the drawn-out portion of the photosensitive material 184 after being drawn from the photosensitive material magazine 182 and cut by the nip roller 186 to the photosensitive material magazine 182, and the conveyance roller 192 after cutting the photosensitive material 184 to the next processing unit ( When carrying out the operation of carrying to the carrying roller 28) at the same time, the rotational speed of the nip roller 186 (that is, the photosensitive material magazine 18 of the portion where the photosensitive material 184 is drawn out).
2) and the rotation speed of the transport roller 192 (that is, the transport speed of the photosensitive material 184 after cutting) are set differently according to the required transport amount of the image recording material by the transport roller 192.

For example, due to factors such as the arrangement position of the cutter 188 and the like, the photosensitive material magazine 1 of the portion where the photosensitive material 184 is pulled out.
Compared with the required rewinding amount to 82, the photosensitive material 18 after cutting
4 is large, the deceleration (speed change) ratio when the motor 204 rotates in the reverse direction is set so that the rotation speed of the conveyance roller 192 is faster than the rotation speed of the nip roller 186 (for example, as described above). Like 4 times). Therefore, the reverse rotation of the nip roller 186 and the conveyance roller 1
Even if the forward rotation of 92 is stopped at the same time (the photosensitive material 184
Even if the operation of rewinding the drawn-out portion of the sheet to the photosensitive material magazine 182 by the nip roller 186 and the operation of transporting the cut photosensitive material 184 to the next processing portion by the transport roller 192 are simultaneously completed), the rewinding is not completed. In this case, the rewinding operation and the carrying operation can be efficiently completed at the same time without causing such a situation or an insufficient carrying state.

In the first embodiment,
The example in which the speed change reverse mechanism in the drive mechanism (image recording material conveying device) applied to the sensitive material auxiliary supply unit 180 is configured by the gear 212 has been described, but the present invention is not limited to this, and the speed change reverse mechanism may be a belt and a pulley. It can also be configured by. FIG. 5 is a schematic perspective view showing details of the drive mechanism (image recording material conveying device) for the nip roller 186 and the conveying roller 192 having such a configuration.
Note that components that are basically the same as those in the first embodiment are given the same reference numerals as in the first embodiment, and descriptions thereof are omitted.

In the drive mechanism according to the second embodiment, the gear 212 of the first embodiment described above is omitted. Further, a pulley 230 is attached instead of the gear 220 of the gear unit 214, and the belt 23
2 is connected to the gear pulley 234. Further, instead of the gear 218 of the gear unit 214, a pulley 236 is arranged, and a belt
It is connected to the pulley 234. In this case, the belt 23
The reference numeral 8 is so-called laid on the pulley 236 and the gear pulley 234, and is configured so that the rotation of the gear pulley 234 can be reversed and transmitted to the pulley 236. Furthermore, the gear pulley 234 and the gear 200 are connected by a pair of gears 240 and 242.

Also in the drive mechanism (image recording material conveying device) according to the second embodiment, when the motor 204 is rotated in the forward direction when the photosensitive material 184 is pulled out, the nip roller 186 moves in the forward direction. While being rotated, only the one-way clutch 224 arranged on the pulley 230 transmits the rotational force to rotate the conveying roller 192 in the forward direction, and the photosensitive material 184 is conveyed. On the other hand, photosensitive material 1
After 84 is pulled out and disconnected, the motor 204 is rotated in the reverse direction, whereby the nip roller 186 is rotated in the reverse direction, and at the same time, only the other one-way clutch 226 arranged on the pulley 236 is rotated. To convey. That is, at this time, since the belt 238 and the pulley 236 for shifting and reversing the rotational direction are interposed and connected to the driving force transmission system by the other one-way clutch 226, the reverse rotation of the motor 204 is caused by the belt 238. The rotation direction is reversed and transmitted by the pulley 236, and the transport roller 192 is rotated in the forward direction. As a result, the drawn-out portion of the photosensitive material 184 is rewound by the nip roller 186 to the photosensitive material magazine 182, and at the same time, the cut portion is conveyed by the conveying roller 192.

As described above, in the drive mechanism according to the second embodiment, not only the photosensitive material 184 contained in the photosensitive material magazine 182 can be pulled out by the single motor 204, but also the photosensitive material magazine 182 can be extracted. The operation of rewinding the drawn-out portion of the photosensitive material 184 that has been pulled out of the cutting material 182 and cut into the photosensitive material magazine 182, and the cutting of the photosensitive material 184 after cutting
Can be carried out at the same time. Therefore, the processing time can be significantly reduced. Further, it is not necessary to separately arrange a driving source such as a motor in each of the pull-out / conveyance drive system for the photosensitive material 184 and the subsequent conveyance drive system, and the speed control does not have to be performed independently. To do. Further, since the motor 204 can be driven and used in the most effective rotation torque region, the driving force of the motor 204 can be effectively and efficiently used, and complicated control is not required.

Further, in the drive mechanism according to the second embodiment, the speed change reverse mechanism is simply the belt 238 and the pulley 2.
Since it is composed of 36, the mechanism is simple and the rotational force can be reliably transmitted. In addition, the pulley 2
By appropriately changing the diameter of 36 and the like, the transport speed of the photosensitive material 184 in the above-described two states and the variable speed thereof can be arbitrarily set, and a large transport speed difference (reduction ratio) can be obtained. .

In each of the embodiments described above,
The drive mechanism (image recording material conveying device) of the present invention is applied to the conveying system of the photosensitive material 184 of the photosensitive material auxiliary supply unit 180, and the photosensitive material 184 is pulled out from the photosensitive material magazine 182 and conveyed after cutting. Although the configuration has been described, the invention is not limited to this, and the invention can be applied to a transportation system of the photosensitive material 22 and a transportation system of the image receiving material 94 of the image recording apparatus 10, and further applied to a transportation driving system of another portion. Good.

Further, in the above-described embodiment, the photosensitive material 22 and the image receiving material 94 or the photosensitive material 184 is used as the image recording material, but the invention is not limited to this, and other sheet-shaped image recording materials are used. Is applicable.

[0124]

As described above, the image recording material conveying apparatus according to the present invention has a compact structure with a single drive source, and the image recording material accommodated in the magazine efficiently without complicated control. Not only can it be pulled out, but the operation of rewinding the drawn-out portion of the image recording material after it has been pulled out from the magazine and cut into the magazine and the operation of conveying the cut image recording material to the next processing unit at the same time. It has an excellent effect that it can be performed, the processing time can be shortened, the number of parts and the arrangement space can be reduced, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a side view showing details of an image recording material conveying device (driving mechanism) according to a first embodiment of the present invention.

FIG. 2 is a schematic perspective view corresponding to FIG.

FIG. 3 is a schematic overall configuration diagram of an image recording apparatus configured by applying the image recording material conveying apparatus (driving mechanism) according to the first embodiment of the present invention.

FIG. 4 is an external perspective view of the image recording apparatus.

FIG. 5 is a schematic perspective view showing an image recording material conveying device (driving mechanism) according to a second embodiment of the present invention.

[Explanation of symbols]

 10 Image Recording Device 180 Sensitive Material Auxiliary Supply Unit 182 Sensitive Material Magazine 184 Photosensitive Material (Image Recording Material) 186 Nip Roller (Drawing / Rewinding Roller) 192 Conveying Roller 204 Motor (Drive Source) 210 Gear 212 Gear (Gear for Reversed Speed) 214 gear unit 216 gear 218 gear 220 gear 222 shaft 224 one-way clutch 226 one-way clutch 228 gear 230 pulley 232 belt 234 gear / pulley 236 pulley 238 belt

Claims (5)

[Claims] 1. A pull-out rewind roller that holds an image recording material housed in a magazine, pulls out and conveys by forward rotation, and rewinds by reverse rotation, and pulls out by the pull-out rewinding roller. A conveyance roller that conveys the image recording material after being cut and cut, a single drive source that is rotatable in forward and reverse directions, and that drives the pull-out rewind roller and the conveyance roller, and The rotational force in the positive direction is transmitted to both the pull-out rewinding roller and the transport roller as the positive direction rotational force, and
An image recording material conveying device, comprising: a rotating force transmitting mechanism that transmits the rotating force of the driving source in the reverse direction to the pull-out rewinding roller as the rotating force of the backward direction and to the conveying roller as the rotating force in the forward direction. 2. The rotating force transmitting mechanism is arranged between the drive source and the pull-out rewinding roller and the conveying roller,
It has a plurality of gears that connect the drive source to the pull-out rewind roller and the transport roller to transmit the rotational force of the drive source to the pull-out rewind roller and the transport roller, and have the same rotational force transmission direction. The two one-way clutches arranged coaxially with one gear between the drive source and the conveyance roller, and only one one-way clutch transmits the rotational force of the drive source to the conveyance roller.
Driving force transmission system, and the other one-way clutch constitutes a second driving force transmission system that transmits the rotational force of the driving source to the conveying roller, and the first driving force transmission system and the first driving force transmission system A speed change / reverse mechanism for speed change and rotation direction reverse rotation is interposed and connected to either one of the two driving force transmission systems, and the forward rotation and the reverse rotation of the drive source are both applied to the conveyance roller as a forward rotation force. Transmission, and by switching the rotation direction of the drive source between forward and reverse,
When the drive source rotates in the forward direction, the pull-out rewind roller and the transport roller rotate in the forward direction, and when the drive source rotates in the reverse direction, the pull-out rewind roller rotates in the reverse direction, and at the same time, the transport roller moves in the forward direction. The image recording material conveying device according to claim 1, wherein the image recording material conveying device is rotated. 3. The image recording material conveying apparatus according to claim 2, wherein the speed change reverse mechanism is configured by a gear. 4. The image recording material conveying apparatus according to claim 2, wherein the speed change reverse mechanism is constituted by a belt and a pulley. 5. The rotating speed of the pull-out rewinding roller and the rotating speed of the conveying roller when the drive source rotates in the reverse direction are made different according to the required conveying amount of the image recording material by the conveying roller. The image recording material conveying device according to claim 1, claim 2, claim 3, or claim 4, characterized in that.