JPH02300734A - Instant camera - Google Patents

Abstract

PURPOSE:To prevent a part of a camera from being moved from the photographing position in the storage direction by locking proper power transmission elements at the time of leading out a photographic optical system up to the photographing position. CONSTITUTION:When sliders 10 are slided to the forefront to set a camera to the stand-by state, detaining pins 61e stood on detaining arms 61b of lock members 61 are engaged with lock recessed parts 10e formed in lock parts 10d of sliders 10 to stop sliders 10 from sliding. A guide pin 11b of a driving link 11 is engaged with a notched part 63b of a detaining lever 63 to stop the driving link 11 from moving. Consequently, a top plate 13 cannot be pushed down in the stand-by state though pushing-down is tried. Thus, a part of the camera is not moved from the photographing position in the storing direction and the output value of an encoder or the like is not affected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is a camera for taking pictures in instant 1, which can obtain color prints or black and white prints on the spot where the pictures are taken, and The present invention relates to an instant camera in which parts of the camera such as photographing optical system parts are stored and transported, such as feeding and unfolding.

[Conventional technology]

With instant photos, you can obtain color or black and white prints on the spot, so you can check the condition on the spot, respond to urgent reports and press reports, or check the proper exposure by performing exposure tests. The purpose of use is different from that of ordinary photographs, such as determining the

Therefore, this instant photographic film has 35
Regular type pudding 1 larger than M1 size negative film
A suitable number of films, which are C-I-films close to the same size as those shown in FIG. When the film is released, the second-most film in the film pack is exposed, and the film is spread and developed by a developing roller driven by an electric motor, and then sent out from the film pack to the outside of the camera.
As a result, what was added to pudding 1 will be obtained. Due to the above-mentioned circumstances, the instant camera generally has a large film pack and uses a long focal length lens, resulting in a bulky shape that is inconvenient to carry.

Therefore, when carrying an instant camera, there are cameras that have a part of the camera body that can be folded in order to reduce the bulk.

[Problems to be Solved by the Invention] In the above-mentioned conventional instant 1-camera in which a part of the main body can be folded, the folding operation is performed manually. If this is done by a motor, it will be easier to handle the instant camera and the operability will be improved.
This allows you to enjoy taking photos with the instant camera even more. Moreover, since a part of the camera can be stored, it does not take up too much space when carried.

By this folding operation, a part of the camera is pulled out and stored, but if a part of the main body is pulled out and the pulled out part is pressed down, If it moves in the direction where it is stored,
This will cause inconvenience. In other words, for example, because an encoder or the like detects that a part of the camera is in a pulled out state, the output value of this encoder may shift and the camera may not be able to operate properly. . Therefore, when a part of the camera is pulled out, it is necessary to prevent the part from moving in the storage direction even if the part is pressed down.

In view of this, the present invention provides that when a part constituting a photographic optical system or the like is pulled out for photographing, even if an attempt is made to retract it by an external force such as pressing down on the part, the part will not move in the retracting direction. It is an object of the present invention to provide an instant camera equipped with a locking mechanism that prevents the camera from being damaged.

[Means for solving problems]

In order to achieve the object described above, the instant 1 camera according to the present invention has an operation in which a part of the camera is pulled out and placed at a shooting position for shooting when shooting, and is appropriately stored in the camera body when not shooting. Instance 1 to camera operated by power of a motor, a locking means is provided for engaging and disengaging with an appropriate power transmission element in a power transmission path from the motor to a part of the camera, so that the part of the camera is in the photographing position. In the pulled out state, the locking means engages with the power transmission element to prevent a part of the camera from moving from the photographing position in the storage direction.

[For production]

When the motor operates and the parts constituting the photographic optical system are pulled out of the camera case body and positioned at a photographing position where they can be used for photographing, the locking means engages with the power transmission element. Then, the operation of the power transmission element is stopped. In other words, the power transmission element is in a locked state. Therefore, even if an external force tries to move the pulled out part in the storage direction, the transmission element engaged with the locking means remains stopped against the external force. is not moved in the storage direction and has no effect on the encoder output value.

〔Example〕

The instant camera according to the present invention will be specifically explained below based on a preferred embodiment shown in FIGS. 1 to 18.

As shown in FIGS. 2 to 8, this instant camera consists of a roughly rectangular camera body 1 and a grip part 2 attached to the side of the camera body 1. The parts that make up the optical system are shown by solid lines and chain double-dashed lines in the figure.

It is arranged so that it is located at a storage position P for carrying and a photographing position P2 for photographing.

As shown in FIG. 1, an electric motor 3 is built into the front part of the grip part 2, and its output shaft protrudes to the front part of the camera body 1 side, and a pinion gear 21 is fitted into the protruding part. be.

As shown in FIG. 1, FIG. 9, and FIG. Gear 22 meshes with gear 23, which is coaxial with this gear 22.
A gear 24 pivotally supported by the sub-plate 5 meshes with this gear 23. A gear 25 is provided coaxially with this gear 24, and a gear 2G that is pivotally supported by the sub-player 1 and 5 meshes with this gear 25, and a gear 27 is provided coaxially with this gear 26. There is.

A gear 28 that is pivotally supported by the side plate 4a meshes with the gear 27, and a supporting shaft of this gear 28 is provided with a roller 6a of the pair of delivery rollers 6, and the upper roller 6a is arranged to rotate in synchronization with the gear 28.

The lower roller 6b of the delivery roller 6 is provided below the upper roller 6a, and its support shaft is pushed upward by a leaf spring 7. The elastic force of the leaf spring 7 pushes the lower roller 6b toward the upper roller 6a, and -1 part changes the distance between the roller 6a and the lower roller 6b. Further, this feed roller 6 is disposed at a position facing the leading edge of the film, which will be described later.

The gear 28 includes a gear 2 which is pivotally supported by a support plate 1-8 disposed between the side plate 4a and the grip portion 2.
9 are in mesh with each other, and a gear 30 is provided coaxially with this gear 29. A gear 31 meshes with this gear 30, and a sun gear 33 of a planetary gear train 32 is provided coaxially with this gear 31. A substantially V-shaped swinging arm 34 is rotatably supported on the rotating shaft of the sun gear 33 via an appropriate frictional force with the sun gear 33, and a swinging arm 34 is rotatably supported at one end of the swinging arm 34. A planetary gear 35 is supported. Further, a stopper pin 9 is implanted at the other end of the swing arm 34.

By the swinging of the swinging arm 34, the planetary gear 35 is connected to the first gear 41 of the storage operation system, as shown by the solid line in FIG. It is designed to mesh with one of the delivery gears 51.

The first gear 41 is rotatably supported by the side plate 4a, and a second gear 42, which is rotatably supported by the side plate 4a, meshes with the first gear 41. This second gear 4
2 meshes with a third gear 43 rotatably supported by the side plate 4a, and this third gear 43 meshes with a drive gear 44 rotatably supported by the side plate 4a. This drive gear 44 meshes with a fan-shaped first gear 45 rotatably supported by the side plate 4a.

The sector-shaped first gear 45 is combined with a sector-shaped second gear 46 as shown in FIGS. 17 and 18.

As shown in the figure, the combination of these sector-shaped gears 45 and 46 is such that the sector-shaped second gear is inserted into a through hole/15b drilled in the center of the sector-shaped first gear 45 so that the rotation axis 45a is common. A boss portion 46a protruding from the center of the gear 46 is inserted loosely so that the fan-shaped first gear 45 and the fan-shaped second gear 46 can rotate freely relative to each other. A roughly V-shaped guy 1 to hole 45c is formed at an appropriate position on the sector-shaped first gear 45, with the bent portion of the V-shape facing the rotating shaft 45a, and a rotating portion is formed in the bent portion. An arc-shaped recess 45d on the moving shaft 45a side
is formed. Furthermore, a release protrusion 45e is provided to protrude from one end of the outer periphery in the fan-shaped circumferential direction.

On the other hand, on the surface of the sector-shaped second gear 46 facing the sector-shaped first gear 45, a base end portion of a locking lever 46b is supported by a shaft 46c so as to be swingable in a plane orthogonal to the rotation shaft 45a. . The guide hole 4 is located in the middle part of this locking lever 46b.
An engagement pin 46d that is loosely inserted into the 5c is protruded, and this engagement pin 46d normally engages with the recess 45d to prevent rotation between the sector-shaped first gear 45 and the sector-shaped second gear 46. Transmission of motion is performed. In addition, the locking lever 46
A return spring 46e made of a tension coil spring is hooked between the free end of b and the fan-shaped second gear 46, and its restoring force is applied to the locking lever 46b and the engagement pin 46d to the recess. 45d is biased to swing in the direction of engagement.

In addition, as shown in FIGS. 17 and 18, the fan-shaped first
The teeth of the gear 45 and the sector-shaped second gear 46 are formed in portions required for the operations described below.

Note that the sector-shaped second gear 46 may be formed over the entire outer peripheral surface.

As shown in FIGS. 1, 9, and 10, the sector-shaped second gear 46 is provided with an appropriate power transmission element formed on the lower end surface of the slider 10 as an appropriate power transmission element that engages and disengages with a locking means to be described later. rack], meshed with Oa. This slider 10 is provided with guide pins Job, 1, Oc, which are loosely inserted into elongated holes 4b formed in the side plate 4a, and the slider 10 is moved as shown in FIGS. Fig. 10" It is slidable in two left and right directions (directions parallel to the optical axis). A lock portion 10d is provided at the top of the slider 10 and projects laterally from the rear to the middle portion, and four lock portions 10e are formed at appropriate positions on the lower surface of the lock portion IOd. As shown in FIG. 1, the long hole 4 into which the guide pin 10c is loosely inserted
A long hole 4c is also formed in the other side plate 4a facing b.

The guide pins] and Oc protrude further inward from the side plate 4a, and the lower end of the drive link l] is rotatably supported on this protruding portion. A substantially central portion of a driven link 12 is connected to a substantially central portion of the driving link 11 via a shaft 14 so that the driving link 11 and the driven link 12 are rotatable with respect to each other. The upper end of this drive link 11 is rotatably connected to the front of a top plate 13 forming a dark box. On the other hand, the lower end of the driven link 12 is rotatably supported above the front part of the side plate 4a, and a pin 2a is protruded from one end thereof, and the pin 2a is connected to the top plate. Long hole 1.3a formed on the side of 13
It is a loose insertion. Note that the elongated hole 4b into which the guide pin Oc connected to the lower end of the drive link 11 is loosely inserted is located at the projected position of the elongated hole 13a. In addition, the driving link 11 and the driven link 12 described in "2" are also provided in conjunction with the opposite side plate 4a and the opposite side of the top Fi], 3, and the driving link 11 and the driven link 12 provided on the opposite side plate 4a. The upper parts of the connecting rods], ], a are rotatably connected to the connecting rods 1], a. moreover,
A guide pin llb is attached to the lower end of the drive link 11 on the opposite side.
is provided, and this guide pin is loosely inserted into the elongated hole 4c.

Further, the elongated hole 13 of the top plate 13 of the driven link 12
One end of an operation plate 15 is rotatably supported by a pin 12a loosely inserted into the pin 12a, and two long holes 15a and 15b are formed at appropriate positions on the operation plate 15 at an appropriate distance apart. has been done. A mirror cover 16 is provided at the rear end of the top plate 13 so as to be rotatable around a shaft 16a. A cover guide pin 161 which protrudes laterally is implanted at an appropriate position in the middle of the mirror cover 16, and this cover guide pin 16b is connected to the elongated hole 15a of the operation plate 15.
It is loosely inserted into.

A mirror 17 is disposed on the lower surface of the mirror cover 16, and this mirror 17 is rotatably supported on the side plate 4a by a shaft 17a. A mirror guide pin 17b that protrudes laterally is installed at an appropriate position in the middle of the mirror 17, and this mirror guide pin 7b is connected to the operation plate 1.
It is loosely inserted into the elongated hole 15b of 5.

A lens frame portion 18 is provided at the front edge of the top plate I3, and a photographing lens unit I9 is attached to approximately the center of this lens frame portion 18.

Furthermore, a protrusion 18a having an appropriate shape and protruding outward from the side plate 4a is formed at an appropriate position on the side of the lens frame portion 18.

At the rear of the side plate 4a (7) are three 7-muro 1a, 6],
b, 6] locking member 61 as a locking means having c
is rotatably supported by a shaft 61d at a position where the three arms 61a, 61b, and 61c come together.

The arm 61a of the locking member 61 is a release arm that extends rearward and protrudes further back than the back plate 4d of the main body case 4. 1 (shown in FIG. 1), and both ends of the communication lever 62 are engaged with the lower surface of one end of the communication lever 62, which protrudes laterally beyond the respective side plates 4a.

The arm 61b is a locking arm that extends forward and has a locking pin 61e at its tip protruding toward the side plate 4a, and the tip of the locking arm 61b reaches the side of the slider 10. The locking pin 61e is designed to engage with the lock recess 10e formed in the lock portion 10d of the slider 10 and to smoothly rub against the lower surface of the lock portion 10d. Further, a return spring 61f made of a tension coil spring is hooked between the tip of the locking arm 61b and the side plate 4a, and the locking pin 61e transfers the restoring force to the locking recess]Oe. The lock member 61 is biased to rotate in the direction in which it engages with the lock member 61. The arm 61c is an input arm extending downward,
It is located within the rotation range of the release protrusion 45e of the fan-shaped first gear 45, and when the release protrusion 45e comes into contact with the input arm 6]c due to the rotation of the fan-shaped first gear 45, the lock member 61 pivots. It rotates around 61d in the rotating direction as shown in the top of FIG.

As shown in FIG. 1, the opposite end of the communication lever 62 is connected to two surfaces of the rear end of a locking lever 63 rotatably supported by a shaft 63a on the side plate 4a at the center of the lever. is engaged in. As shown in FIG. 1, a notch 63b is formed at the front end of the locking lever 63, and the quick-acting link 1
1 pin], 1b is the elongated hole 4
When the guide pin 1b is positioned at the front of the guide pin 63b, the guide pin 1b engages with the notch 63b. That is, the guide pin llb and the notch 63b constitute another locking means. Further, the rear end of the locking lever 63 is biased by the restoring force of a tension spring 63c made of a tension coil spring, and this restoring force causes the notch 63b to be pinned to the guy 1]1. The locking lever 63 is configured to rotate in the direction in which it engages with the locking lever 63.

A delivery gear 51 with which the planetary gear 35 meshes is rotatably supported by the side plate 4a, and a cam drum 52 is mounted on the rotation axis of the delivery gear 51 as shown in FIGS. 1 and 10.
It is provided to rotate in synchronization with 1. A part of the outer peripheral surface of the cam drum 52 is cut out to form a cam recess 52.
A is formed, and a control lever 53 having an engaging end 53a that engages and disengages from the cam recess 52a is supported by the side plate 4a so as to be rotatable about a shaft 53b. The control lever 53 has a substantially L-shape as shown in FIG. 10, and is supported at its bent portion by the shaft 53b.

Further, one end of the control lever 53 is provided as an operating end 53c, and when the control lever 53 is rotated, the operating end 53c
The switch 54 is turned on and off by engaging and disengaging from the switch piece 54a of the switch 54. A restoring force of a return spring 53d made of a tension coil spring is applied to the engagement end 53a side of the control lever 53, and this restoring force causes the control lever 53 to move toward the engagement end 53a.
3a rotates in the direction in which it engages with the cam recess 52a. Further, as shown in FIG. 10, an operating pin 51a oriented toward the side plate 4a is provided on the side surface of the delivery gear 51 at a position in an appropriate relationship with the cam recess 52a.
has been planted.

As shown in FIG. 10, a claw 55 is provided on the side plate 4a so as to be slidable in the optical axis direction. This sliding movement is guided by loosely inserting a guide pin 55g installed in the tallow 55 into an elongated hole 4e formed in the side plate 4a. As shown in FIGS. 10 and 13, the claw 55 is formed of a drive plate portion 55a parallel to the side plate 4a and an operation plate portion 55b bent at right angles to the drive plate portion 55a.
The drive plate portion 55a passes through a claw through hole 55c formed in the side plate 4a, and the operation plate portion 55b is attached to the outside of the side plate 4a.
is located inside the side plate 4a. As shown in FIG. 1.0, the rear end portion of the operation plate portion 55b is bent and formed into a pull-out claw portion 55d.

Below the operation plate portion 55b of the claw 55 and below the mirror 17, a fill 11 pack 70 is housed in the camera body 1 so as to be freely removable and removable, as shown in FIGS. 10 and 13. This film pack 70 is loaded with a plurality of Sea 1 films, and the film 71 located at the second most position is exposed. A box 72 filled with a developer is provided at the front end of the film, and a liquid reservoir 73 is provided at the rear end to absorb the developer diffused on the film surface.

The pull-out claw portion 55d of the claw 55 is adapted to engage with the edge of the liquid reservoir portion 73. Further, as described above, the bod 72 is arranged to face the delivery roller 6.

The front end of the drive plate portion 55a of the claw 55 is connected to the delivery gear 5.
1, and an engaging tongue piece 55e that engages with and disengages from the operating pin 51a implanted on the side surface of the delivery gear 51 is provided at the tip.

The engagement and disengagement between the operating pin 51a and the engaging tongue piece 55e is performed by rotation of the delivery gear 51. In addition, the drive plate portion 5
A return spring 55f made of a tension coil spring is hooked between the rear end of the claw 5a and the side plate 4a, and uses its restoring force to urge the claw 55 to move rearward in FIG. It is.

An operating lever 81 is provided on the side plate 4a and is slidable from the front end to the rear end of the main body case 4 in a direction parallel to the optical axis. The operating lever 81 is guided in its sliding direction by loosely inserting a guide pin 81a installed in the side plate 4a into a long hole 81b formed in the operating bar 81. In addition, a return spring 8]c made of a tension coil spring is provided between the front part of the operating lever 81 and the side plate 4a.
The lever is extended, and its restoring force is biased in the direction in which the operating lever 81 moves forward. Furthermore, the front end
One edge is appropriately chamfered to form an inclined surface 8]d. Further, a locking protrusion 81e projecting upward is provided at an appropriate position on the front portion, and a locking pin 81f is implanted at the rear end. Note that this operating lever 81
As shown in FIGS. 9, 10, and 12, it is formed into an appropriately bent shape depending on the arrangement of the power transmission gears described above.

A control member 82 is provided on one side of the portion where the locking protrusion 81e is formed, and a long hole 8 formed in the control member 82 is provided.
Guys 1 to 82b implanted in the side plate 4a are loosely inserted into the side plate 2a, and are slidably provided in a direction parallel to the optical axis. A return spring 82c made of a tension coil spring is hooked between the control member 82 and the side plate 4a, and uses its restoring force to bias the control member 82 in a direction to move rearward. Furthermore, a locking protrusion 82d that engages with and disengages from a locking protrusion 81e formed on the operating lever 81 is formed at an appropriate position on the lower edge of the control member 82. The locking protrusion 81e and the locking protrusion 82d are engaged by sliding of the operating lever 81, and are engaged when the operating lever 81 moves forward. Further, a stopper protrusion 82e is formed at an appropriate position on the lower edge of the control member 82, and when the control member 82 moves forward, the stopper protrusion 82e is attached to the swing arm 34 of the planetary gear train 32. It is positioned within the turning area of the inlet 1-flange pin 9 implanted in the holder.

A switching operation lever 8 is located near the rear end of the operating lever 81.
3 is rotatably supported on the side plate 4a about a shaft 83a. As shown in FIGS. 9 and 10, this switching operation lever 83 has a part 8
3b, input lever part 83c, and switching lever part 83d.
The above-mentioned shaft 83a is composed of a book lever and is located approximately in the center thereof.
are arranged. At an appropriate position on the operating lever part 83b,
As shown in FIG. 12, a positioning protrusion 83e that can be freely retracted and retracted by the restoring force of a push spring 83g is provided, and cooperates with a positioning recess 83f formed in the side plate 4a to move the switching operation lever 83 to a predetermined position. Stop at the position. Also,
The rear surface of the manual lever part 83c engages with the front side surface of the locking pin 8]f implanted in the operating lever 81. Furthermore, the tip of the switching lever part 83d is connected to the switching operation lever 8.
The switch piece 84 of the main switch 84 is
a, and turn the main switch 84 on and off.

Further, a brush 85a is attached to the inner surface of the sector-shaped second gear 46, as shown in FIGS. are in contact. The on/off change of the main switch 84 and the encoder 85
As will be described later, the electric motor 3 is immediately activated or stopped, and the direction of rotation is changed according to the output signal of the electric motor 3.

The photographing lens unit 19 includes a photographing lens H1a as shown in FIG. 15, and in front of the photographing lens H1a, a barrier 91 as shown in FIGS. 14 to 16 is opened and closed. It is set freely.

As shown in FIGS. 15 and 16, this barrier 91 consists of two substantially arc-shaped barrier plates 91a that are divided into upper and lower halves. 91b and 91c extend toward the inner surface 92 of the grip portion 2.

Operation rod 9 provided on the lower barrier plate 91a
], b are loosely inserted into guide grooves 9], d formed on the inner surface 92 of the grip part 2, and as shown in FIG. It is formed to be inclined so that one end is the rearmost part. The distal ends of actuating arms 91e are rotatably connected to the distal ends of the operating rods 9], b, and 91c, respectively, and the proximal ends of the actuating arms 91e are rotatably supported about shafts 91f. has been done. A driving gear 91g is fitted onto each of the shafts 9], f so as to rotate in synchronization with the shaft 91f, and these driving gears 91c are in mesh with each other. In addition, each operating arm 9
1e, a return spring 911 consisting of a tension coil spring is attached, and its restoring force is applied to the barrier plays 1 to 9.
1a, 9] is biased so that the inner edges of a are brought into close contact with each other. Although not shown in the drawings, the lens bow 1<93 is provided with a guy I for guiding the turning movement of the barrier plate 91a.

The grip part 2 has the parts shown in FIG. 1, FIG. 3, FIG.
As shown in FIG. 1, a power supply battery 95, a strobe capacitor 96, and the like are housed. In addition, as shown in FIGS. 2 and 4, the front end of the grip part 2 has a slot 1 and a robot light emitting window 9.
7 and a finder 98 are arranged. In addition, in FIGS. 3, 7, and 11, 97a is the strobe discharge tube,
97b is a reflective umbrella.

The operations of the instant 1 camera according to the present invention configured as described above will be explained below.

The state indicated by the solid line in Fig. 2, and Figs. 3, 5, 7, and 9 show the state in which the photographic lens unit 1 is stored in the main body case 4, and in this state, this instant camera is used to take pictures. It is compact and convenient to carry.

In this state, as shown in FIG. 9, the tip of the actuating lever 81 is located forward of the lens frame 18, and the lower surface of the tip engages with the upper surface of the protrusion 18a of the lens frame 18. For example, if the photographer uses the photographic lens unit 7+-1
Even if I tried to pull up 9, I couldn't. Further, since the actuation lever 81 is at the forefront, the locking protrusion 82d of the control member 82 is pushed by the locking protrusion 8], e of the operation lever 81, so that the control member 82 is also at the front. At this time, the stopper protrusion 82e of the control member 82 is located within the rotation range of the stopper pin 9 implanted in the swing arm 34 of the planetary gear train 32, and the swing arm 34 is moved from the position shown in FIG. Rotation in the counterclockwise direction is prevented.

Further, the sector-shaped first gear 45 and the sector-shaped second gear 46 are in the position when the slider 10 is positioned at the rearmost position, and the encoder 85b outputs the position of the sector-shaped gears 45 and 46.

Further, the mirror 17 is tilted to a nearly horizontal position as shown by the two broken lines in FIG.

In order to change the camera from the stored state at the storage position P1 described above to the standby state at the photographing position P2, where the camera is used for photographing, operate the operating lever part 83b of the switching operation lever 83 to move the camera to the position shown in FIG. The switching operation lever 83 is rotated from to the position shown in FIG. Therefore, the input lever 83c of the switching operation lever 83, which is engaged with the locking pin 8]f of the actuating lever 81, turns in the counterclockwise direction in FIG. 9, and the actuating lever 81 is shown in FIG. retreat to position. This retreat disengages the distal end of the operating lever 81 from the protrusion 18a of the lens frame 18, allowing the photographic lens units 1 to 19 to move upward.

Further, when the actuating lever 81 is moved backward, the actuating lever 81
The control member 8 that was restrained by the locking protrusion 81e of
2 becomes free, and the control member 82 also retreats due to the restoring force of the return spring 82c. Therefore, the stopper protrusion 82e of the control member 82 retreats from the rotation range of the stopper pin 9 implanted in the swinging arm 34, so that the swinging arm 34 moves to the tenth position.
Rotation in the counterclockwise direction in the figure is allowed.

” At the same time as the operating lever 81 moves backward, the switching lever 83d of the switching operation lever 83 moves the switch piece 8 of the switch 84.
4a to turn on the switch 84.

As mentioned above, the output of the encoder 85b is transmitted to the actuating lever 8.
1 indicates the rearmost position, and the electric motor 3 rotates in the forward direction based on this information and the change of the switch 84 from OFF to ON. This forward rotation of the electric motor 3 causes the pinion gear 21 to rotate in the cutting direction as shown in FIG. When the rotation of this pinion gear 21 is transmitted to the sun gear 33 via the gears 22 to 31, the sun gear 33
It will rotate clockwise in the diagram. Since an appropriate frictional force acts between the sun gear 33 and the swinging arm 34,
The swing arm 34 also rotates in the same direction, and the planetary gear 35 pivotally supported by the swing arm 34 meshes with the first gear 41. Therefore, the rotation of the electric motor 3 is transmitted from the planetary gear 35 to the sector-shaped first gear 45 via the first gear 41, second gear 42, third gear 43, and drive gear 44. The sector-shaped first gear 45 rotates counterclockwise in FIG.

As shown in FIGS. 17 and 18, a sector-shaped second gear 46 is attached to the sector-shaped first gear 45, and a recess 45d of the sector-shaped first gear 45 and an engagement pin 46d of the sector-shaped second gear 46 are engaged with each other. Since they are combined in the same state, the fan-shaped first gear 4
5, the fan-shaped second gear 46 also rotates clockwise in FIG. 9.

Since the fan-shaped second gear 46 is engaged with the rack Oa of the slider 10, the slider 10 moves forward from the position shown in FIG. 9 to the position shown in FIG. Since the lower end of the drive link 11 is connected to the guide pin 10c installed in the slider 10, the lower end of the drive link 11 moves forward as the slider 10 moves forward. On the other hand, since the lower end of the driven link 12 is rotatably supported by the side plate 4a, the distance between the lower end of the driving link 11 and the lower end of the driven link 12 is reduced by the advancement of the drive link. It will be shorter.

As a result, the upper ends of the driving link 11 and the driven link 12 are "pushed in one direction". At this time, the pin 12a at one end of the driven link 12 slides in the elongated hole 13a formed in the top plate 13, and the driven link 1
The distance between the upper end of each link 1 and the upper end of the drive link 11, which is rotatably supported by the top plate 13, is
The distance between the lower ends of 1.12 becomes shorter.

Link] 1. Since the top plate 13 is attached to the upper end of 12, the top plate 13 is also pushed upward, and the lens frame 18 provided at the front end of the top plate 13 rises. It turns out. Since the lens frame portion 18 is provided with the photographing lens unit 19, the photographing lens unit 19 is raised to the photographing position P2 where it can be used for photographing.

Furthermore, since the mirror cover 16 is supported at the rear end of the top plate 13, the mirror cover 16 also rises as the top plate 13 rises. At this time, since the operation plate 15 is pivotally supported at one end of the driven link 12, the operation plate 15 also rises, and the elongated hole 15a of the operation plate 15 is connected to the cover implanted in the mirror cover 16. Since the guide pin 16b is inserted loosely, the mirror cover 16 is raised only by this operation plate 15.
The event was guided by Futsho. For this reason,"
After the second ascent, as shown in FIG. 10, it is in an appropriately inclined state.

Since the mirror guide 1-pin] 7b embedded in the mirror 17 is loosely inserted into the elongated hole 15b of the operation plate 15, the mirror 17 moves as the operation plate 15 rises. It rotates around the moving axis 17a in the direction shown in FIG. In this case, the rotation angle of the mirror 17 is guided by the rise of the operation plate 15. If the mirror 17 is in this state, the light is reflected by the mirror 17 through the photographing lens 19a, and the film 71 becomes in a standby state in which it can be exposed, that is, in a standby state in which it can be used for photographing.

Further, when the slider 10 slides to the frontmost position to put the camera in a standby state, the locking arm 61b of the locking member 61 is inserted into the locking recess 10e formed in the locking portion 10d of the slider 10, as shown in FIG. The locking pins 6] and e are engaged with each other. When the slider 10 moves forward, the restoring force of the return spring 61f causes the locking pin 6]e to rub against the lower surface of the opening portion 10d, causing the lock recess 1. When located at Oe, the lock member 6
This is because the lock pin 61e is rotated counterclockwise in FIG. 9 about the shaft 6] and d, and the locking pin 61e falls into the lock recess 10e.

Further, when the lock member 61 rotates, the release arm 61a also rotates counterclockwise in FIG. 9, so that the communication lever 62, one end of which is engaged with the tip of the release arm 61a Become free. The rear end of a locking lever 63 is engaged with the other end of this communication lever 62, and since the communication lever 62 becomes free, the restraint of this locking lever 63 is released. Furthermore, since the restoring force of the tension spring 63c is applied to the locking lever 63, the locking lever 63 rotates in the direction of arrow P in FIG. 1 about the shaft 63a in response to this restoring force. It will move. This rotation causes the notch 63b formed at the front end of the locking lever 63 to engage with the guide pin 1b of the drive link 11.

That is, the locking pin 61 of the locking member 61. The slider 10 is prevented from sliding by engaging with the lock recess 10e of the slider 10, and the notch 63b of the locking lever 63 engages with the guide pin llb of the sliding link, thereby driving the slider 10. Movement of link H is prevented.

Therefore, even if an attempt is made to push down the top plate J3 in the standby state, the top plate J3 cannot be pushed down.

Also, the barrier, which was closed in the retracted state, will open. When in the retracted state, the photographic lens unit 1
9 is stored in the main body case 4, so the first
In FIG. 5, the tip of the operating rod 9],b of the barrier 91 is connected to the guide groove 91.b formed on the inner surface 92 of the grip portion 2. It is located almost at the lower end of d. That is, in the retracted state, the photographic lens unit 19 and the barrier 9
1 is located at the lower position in FIG. 15, and in this position, the barrier brake I/91a is in a closed position covering the front of the photographing lens 19a as shown by the two-dot chain line. Then, when the photographing lens units I to 19 are raised in a double series, the operating rod 91b of the barrier 91 is similarly raised by 1 while being guided by the guide groove 91d. This guide groove 9],
d is formed to be inclined as shown in FIG. 15, so that as the operating rod 91. The tip of b will be retracted. For this reason, the operating rod 91
The actuating arm 91e connected to the shaft 9 rotates counterclockwise around the axis 9 and f from the position shown by the dotted chain line in FIG. 15 to the position shown by the solid line. Since this shaft 91f is provided with a driving gear 91g, the operating arm 91 is connected to the operating rod 91c via the driving gear old g.
e is rotated clockwise from the position shown by the dotted chain line in Figure 15 to the position shown by the solid line. Since these operating arms 91e are provided with barrier plates 91a, the barrier plates 9],a are opened as shown by the two solid lines in FIG. 15.

FIG. 10 shows a standby state in which the photographing lens unit 19 is raised by 1 and the barrier 91 is open, as shown in FIG.
Since the electric motor 6 outputs a signal indicating that it is in the standby position, the electric motor 3 is stopped even if the main switch 84 is turned on.

When the standby state is established as described above, the lock recess 1 of the lock portion 10d of the slider 10 is opened as shown in FIG.
Since the locking pin 6]e of the locking member 61 engages with the locking pin 6]e of the locking member 61, the slider 10 does not move back from then on, and therefore the second fan-shaped
Rotation of gear 46 is stopped. When the fan-shaped second gear 46 stops in this way, the encoder 85b
The electric motor 3 stops due to the output of the encoder 85b, but due to the stopping accuracy of the encoder 85b, the electric motor 3 rotates slightly even after the sector-shaped second gear 46 stops, and this rotation is transmitted to the sector-shaped first gear 45. A situation may arise. However, in this case, since the sector-shaped first gear 45 rotates slightly with respect to the sector-shaped second gear 46, the rotation of the sector-shaped first gear 45 is not transmitted to the sector-shaped second gear 46. That is, the fan-shaped first gear 45 and the fan-shaped second gear 46 are connected as shown in FIGS. 17 and 18, and the fan-shaped first gear 45
The rotation is transmitted to the fan-shaped second gear 46 via the recessed portion 45d and the engagement pin 46d. When the fan-shaped first gear 45 rotates when the fan-shaped second gear 46 stops rotating, the locking lever 46b moves against the restoring force of the return spring 46e and moves toward the shaft 46c.
The recessed portion 45d is disengaged from the engagement pin 46d and the guide hole 4 is rotated slightly in the counterclockwise direction as shown in FIG.
The engagement pin 46d is located within 5c. Thereafter, the rotation of the sector-shaped first gear 45 causes the guide hole 45c to displace with respect to the engagement pin 46d, and the sector-shaped first gear 45
only will rotate.

Note that the operation described above occurs when the photographic lens unit 19 is raised from the retracted state to the standby state, and the photographic lens unit 19 is prevented from rising due to, for example, an operator inadvertently holding the button down, or for some other reason. 2nd gear 46
Even if the rotation of the fan-shaped first gear 45 is stopped, the rotation of the fan-shaped first gear 45 by the electric motor 3 is allowed, so that no failure occurs in the storage operation system or the like.

The state shown in FIG. 10 is a standby state that can be used for photographing, and when a release button (not shown) is operated in this state, the shutter opens and the light is reflected by the mirror 17 and exposed onto the film 71.

When the release ends, the electric motor 3 receives the end signal.
rotates in the opposite direction. The reverse rotation of the electric motor 3 causes the pinion gear 21 to rotate counterclockwise in FIG. When the rotation of the pinion gear 21 is transmitted to the sun gear 33 via the gears 22 to 31, the sun gear 33 is rotated as shown in FIG.
It will rotate in two counterclockwise directions. Furthermore, since the gear 28 is rotated counterclockwise in FIG. 10 during transmission to the sun gear 33, the two-part roller Ga of the delivery roller 6 is rotated in the same direction.

When the sun gear 33 rotates counterclockwise in the four-turn direction in FIG. Since an appropriate frictional force acts between the oscillating arm 34 and the oscillating arm 34, the oscillating arm 34 rotates counterclockwise as shown by the dotted chain line in the figure, and the planetary gear 35 moves into the delivery gear. It will mesh with 51. For this reason, the delivery gear 5
1 rotates in the counterclockwise direction in FIG. Delivery gear 5
1 rotates, the actuating pin 5 attached thereto rotates in the same direction, so when it rotates to an appropriate position, the claw 5
5, and the subsequent actuating pin 5
1. The claw 55 is pushed to the right as shown in FIG.

Since the rear end of the operating plate portion 55b of the claw 55 is provided with a pull-out claw portion 55d facing the rear end portion of the film 71,
As the glow 55 moves forward, the pull-out claw 55d engages with the rear end of the film 71, and the film 71 is pulled forward from the film pack 70. The upper roller 6a of the feed roller 6 rotates counterclockwise in FIG. 10, and the lower roller 6b rotates clockwise due to the meshing of the gears 28 and 28'.
When the leading end of the film 71 reaches the delivery roller 6, the film 71 is fed forward by the rotation of the delivery roller 6. At this time, since the lower roller 6b is pressed against the upper roller 6a by the leaf spring 7, the film 7
1 is crushed. Since the developer is stored in this bot 72, when it is crushed, the developer flows out onto the surface of the film 71, and when it passes through the delivery roller 6, it is spread over the surface of the film 71. 71 is developed. Also,
Excess developer adheres to the second roller 6a and removes the film 71.
The liquid is absorbed into a liquid reservoir 73 at the rear end of the liquid. Then, the developed film 71 that has been sent to the printer 1 will be sent out to the front of the main body case 4, and the undeveloped film 71 will be positioned at the top of the film pack 70 to wait for the next shooting. Become.

On the other hand, when the delivery gear 51 starts rotating, the delivery gear 5
The cam recess 52 of the cam ram 52 rotates in synchronization with the cam I.
The engagement end 53a of the control lever 53 that is engaged with the control lever 53 rides on the outer peripheral surface of the cam drum 52 from the position shown in FIG. Therefore, the control lever 53 rotates counterclockwise in FIG. 10 about the shaft 53b against the restoring force of the return spring 53d, so that the operating end 53c of the control lever 53 is rotated against the switch piece 54a. The switch 54 is turned on.

” After the second part switch 54 is turned on, the delivery gear 51 is further turned on.
rotates, and the operating pin 5]a of the delivery gear 51 is rotated, and the tallow 5
When the claw 55 is rotated to a position higher than the engagement tongue 55e, the actuating pin 5],a comes off the engagement tongue 55e, and the claw 55 becomes free. At this time, the film 71 has already been fed into the delivery roller 6 as described above, and
be drawn into. When the tallow 55 becomes free, the claw 55 retreats to the original position shown in FIG. 10 due to the restoring force of the return spring 55f and waits to feed the next film 71.

When the delivery gear 51 rotates once and the cam recess 52a of the cam drum 52 engages the engagement end 53a of the control lever 53, the control lever
3 rotates clockwise in FIG. 10 to reach the position shown in the figure and turns off the switch 54. That is, when the delivery gear 51 rotates, the switch 54 is turned on and then turned off. The electric motor 3 is stopped by this changed information from ON to OFF, and thereafter the rotation of the delivery gear 51 is stopped and the camera waits for the next photographing.

Next, the operation of storing the photographing lens unit 19 in the standby state in the main body case 4 will be explained.

In order to store the photographic lens unit 19, the switching operation lever 83 is rotated from the position shown in FIG. 10 to the position shown in FIG. 9. As a result, the input lever 83c releases the locking pin 81f of the operating lever 8], and the operating lever 81 moves forward to the position shown in FIG. 9 by the restoring force of the return spring 8]c. Therefore, the control member 82, in which the locking protrusion 82d is engaged with the locking projection 8]c of the operating lever 81, is moved forward to the position shown in FIG. 9 against the restoring force of the return spring 82c. It will be done. As the control portion 82 moves forward, the stopper protrusion 82e of the control portion 82 engages with the stopper pin 9 of the swinging arm 34 as shown in FIG. Rotate the planetary gear 35 from the position shown by the dotted chain line to the position shown in FIG.
41.

Moreover, since the operating lever portion 83d is moved away from the switch J4'84a by operating the switching operating lever 83, the switch 84 is switched from on to off. At this time, since the encoder 85b is sending out a signal indicating that the camera is in the standby state, this signal and the switch 85b are
This change causes the electric motor 3 to rotate in the opposite direction.

This reverse rotation of the electric motor 3 causes the pinion gear 2I to rotate in the counterclockwise direction i (in the upper direction in FIG. 10).
10, the sun gear 33 rotates counterclockwise in FIG. At this time, since the swinging arm 34 is restrained by the stopper protrusion 82e of the control member 82, the planetary gear 35 and the first gear 41 do not mesh even though the sun gear 33 rotates counterclockwise. Not canceled. Therefore, the rotation of the electric motor 3 is transmitted from the planetary gear 35 to the sector-shaped first gear 45 via the drive gear 44,
The sector-shaped first gear 45 rotates counterclockwise in FIG. 10. At this time, the locking pin 6]e of the locking member 61 is engaged with the lock recess 10e of the slider 10, and the sector-shaped second gear 46 is meshed with the rack 10a of the slider 10. 46 remains stationary regardless of the rotation of the sector-shaped first gear 45.

At this time, as described above, the recess 45d of the sector-shaped first gear 45 is disengaged from the engagement pin 46d of the sector-shaped second gear 46, and only the sector-shaped gear 45 rotates.

Then, when the sector-shaped first gear 45 rotates to an appropriate position, the release protrusion 45e of the sector-shaped first gear 45 locks into the input arm 61 of the member 61. c, the locking member 61 is rotated clockwise about the shaft 61d from the position shown in FIG. 10 to the position shown in FIG. Due to this rotation, the engagement between the locking pin 61e and the lock recess 10e is released, so that the sector-shaped second gear 46 is then interlocked with the sector-shaped first gear 45 in the rotation direction (counterclockwise in FIG. 10). It will rotate to.

When the lock member 61 rotates clockwise in FIG. 10, its release arm 6]a lifts one end of the communication lever 62 upward in FIG. At the other end of this communication lever 62, there is a locking lever 6 as shown in FIG.
3 is engaged, and the operation of the communication lever 62 causes the locking lever 63 to rotate in the opposite direction of arrow P about the upper shaft 63a in FIG. 1 against the restoring force of the tension spring 63c.

This rotation of the locking lever 63 causes the notch 63b to come off the guide pin 11b of the drive link IJ,
The restraint of the driving link 11 is released.

Then, when the fan-shaped second gear 46 rotates in the counterclockwise rotation direction in FIG.
will retreat to the left from the position shown in FIG. Since the lower end of the drive link 11 is connected to the slider 10, the lower end of the drive link II also moves backward. Therefore, the lower end of the driving link 11 moves away from the lower end of the driven link 12, and the top plate 1
3 is lowered, the lens frame portion 18 is also lowered, and the photographing lens unit 19 is also lowered.

During the descent of the lens frame 18, the lens frame 18 comes into contact with the tip of the operating lever 81, which has been advanced to the position shown in FIG. 9 for the retracting operation. Since the top surface of the tip of the actuating lever 81 is formed into an inclined surface 81d, the actuating lever 81 is lowered by lowering the protrusion 18a of the lens frame 18.
is pushed backward against the restoring force of the return spring 81c. At this time, the locking protrusion 81e of the operating lever 81 slightly releases the restraint of the time control member 82, but since the planetary gear 35 and the first gear 41 are in a securely engaged state, the stopper of the swinging arm 34 Due to the frictional forces between the pin 9 and the stop projection 8.2e of the control member 82, their engagement is not easily released. Then, when the protrusion 18a passes,
Due to the restoring force of the return spring 81c, the operating lever 81 is positioned again in the position shown in FIG. 9.

As the top plate 13 descends, the operation panel 15 also descends, and the mirror cover 16 also descends. As the mirror cover 16 is lowered, the mirror 17 below the mirror cover 16 rotates about the shaft 17a in the rotational direction shown in FIG. 10. At this time, the mirror cover 16
The shaft 16a is guided by the operation plate 15 connected to the shaft 16a.
It descends while rotating clockwise in FIG. 10, centering on , and is located at the position shown in FIG. 9 at the lowest end.

FIG. 9 shows the retracted state, and when the slider 10 is retracted to this state, the encoder 85b outputs a signal to that effect, and the electric motor 3 is stopped by this signal. In the retracted state, the protrusion 18a of the lens frame 18 is located below the tip of the operating lever 81, so even if you try to pull the top plate 13 or the like from the outside, you cannot pull it up.

In addition, the open barrier 91 is connected to the photographing lens unit 1-
It will close as the number 19 descends. That is, when the photographic lens unit 19 is in the standby state,
As shown by the solid line in FIG. 15, the operating rod 91. b is located substantially at the upper end of the groove 91d in the guy 1, and the barrier plates 91a, 9]-a are open. When the photographic lens unit 19 descends from this position, the tip of the operating rod 91b is guided by the guide grooves 9 and d, and as it descends, the shaft 9
Turn around 1f in the clockwise direction in FIG. 15.

Therefore, the barrier plate 1''91a is pivoted and closed from the position shown by the two solid lines in the figure to the position shown by the two-dot chain line. Then, in the closed state, the return spring 91
Barrier plays 1 to 9], a, 9], depending on the restoring force of h.
The edges of a are brought into close contact with each other to ensure that they are closed.

In this embodiment, the slider 10 is used as the power transmission element that engages and disengages from the locking member 61 as a locking means, but other transmission elements such as gears may be used. However, if the slider 10 that directly transmits power to the quick-action link 11 that moves a part of the camera between the storage position P1 and the shooting position P2 is locked, it is possible to prevent the part of the camera from being accidentally moved. When an external force is applied, this external force causes the electric motor 3 to
Since the power is not transmitted to the power transmission elements disposed between 10 and the slider 10, it is not necessary to provide these transmission elements with unnecessary strength.

〔Effect of the invention〕

As explained above, according to the instant camera according to the present invention, when a part of the camera related to the photographing optical system is pulled out to the photographing position for photographing, the appropriate power transmission element is locked. Because of this, even if you try to retract a part of the camera at the shooting position or accidentally hit it, that part will not move and the encoder output value will not shift. , no excessive force is applied to the motor or other power transmission elements. Therefore, the position and state of a part of the camera related to the photographic optical system can be maintained in a predetermined state, and the position and state can be reliably detected, so that the camera can be operated accurately.

Furthermore, since a part of the camera does not accidentally move from the photographing position to the storage direction, the ease of handling the instant camera can be improved.

[Brief explanation of drawings]

The drawings show preferred embodiments of the instant camera according to the invention. FIG. 1 is a partially exploded perspective view showing the outline of the internal structure of this instant camera. FIG. 2 is a perspective view showing the external appearance, with solid lines showing the stored state and imaginary lines showing the state ready for photographing. Figure 3 is a front view of the stored state, Figure 4 is a front view of the state ready for photographing, Figure 5 is a right side view of the stored state, and Figure 6 is a front view of the stored state.
The figure is a right side view of the camera in a state ready for photographing, FIG. 7 is a left side view of the stored state, and FIG. 8 is a left side view of the state ready for photographing. FIG. 9 is a sectional view of the left side surface in the retracted state for explaining the power transmission system of the retracting operation. FIG. 10 is a sectional view of the left side for explaining the power transmission system for the storing operation and the film feeding operation, and shows the state used for photographing. 11th
The figure is a schematic plan cross-sectional view. FIG. 12 is a partially omitted plan view showing the power transmission system for the storage operation, and FIG. 13 is a partially omitted plan view showing the power transmission system for the film feeding operation. FIG. 14 is a front view showing the photographing lens unit I section in a state in which it is used for photographing. Fig. 15 is a partially omitted cross-sectional view of the right side of the photographing lens unit for explaining the opening and closing of the barrier, showing the state in which it is used for photographing, and the barrier in the closed state is also shown as an imaginary line. be. 16th
The figure is a schematic perspective view for explaining the structure of the barrier. Figures 17 and 18 show the buffer mechanism in the power transmission system for retracting operation. Figure 17 is an exploded perspective view, and Figure 1
Figure 8 is a left side view.

Claims (1)

[Scope of Claims] An instant camera in which a part of the camera is pulled out and placed at a shooting position for shooting when shooting, and is stored appropriately in the camera body when not shooting, using the power of a motor. A locking means is provided that engages and disengages from an appropriate power transmission element in the power transmission path leading to a part of the camera, and when the part of the camera is pulled out to the photographing position, the locking means engages with the power transmission element. What is claimed is: 1. An instant camera, characterized in that the camera is engaged so that a part of the camera cannot be moved from a photographing position in a storage direction.