JPH08118763A - Peripheral apparatus-attaching and detaching mechanism - Google Patents

Abstract

PURPOSE: To facilitate attachment and detachment of a peripheral apparatus by one touch conveniently for use in a broad use range by a method wherein a spring component which pushes a movable engaging part in a direction of being engaged with a movable side holding part is provided to the peripheral apparatus. CONSTITUTION: A fixing projection 5 of a peripheral apparatus 2 is engaged with a fixing side holding hole 7 on a side wall of a recessed part 3 of a body 1, and the peripheral apparatus 2 is rotated in the arrow B direction by taking an engaged position of the fixing projection 5 with the fixing side holding hole 7 as a center. A connector of the peripheral apparatus 2 enters an opening part of the body 1, and besides comes to be connected to a connector in the opening part. A movable projection 6 on a side wall of a projected part 4 of the peripheral apparatus 2 comes in contact with a side wall upper end face of the recessed part 3, and pushed by receiving the contact pressure. The movable projection 6 moves in a guide groove while compressing the spring component thereby. When the movable projection 6 of the projected part 4 of the peripheral apparatus faces a movable side holding hole 8 on the side wall of the recessed part 3 of the body 1, the movable projection 6 enters the holding hole 8 by energizing force owing to a return of the spring component.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peripheral device attaching / detaching mechanism for detachably attaching a peripheral device such as a printer to a main body of a pocket computer or the like.

[0002]

2. Description of the Related Art For example, it is sometimes desired to print the operation contents of a pocket computer using an optional printer instead of a display mounted therein as occasion demands. In such a case, it is conceivable to connect the pocket computer and the printer by electric wiring. However, since such wiring is inconvenient, the pocket computer and the printer should be pre-attached to each other instead of wiring, and the respective connectors should be connected to each other. It is convenient to make the pocket computer and the printer detachable so that they can be connected so that the pocket computer and the printer can be used compactly. Therefore, there has been proposed a peripheral device attaching / detaching mechanism that allows a peripheral device such as a printer to be detachably attached to a main body such as a pocket computer.

17 and 18 show a conventional example of such a peripheral device attaching / detaching mechanism (see Japanese Patent Laid-Open No. 2-2411), and FIG. 17 is an external perspective view of the main body and the peripheral device.
FIG. 18 is an external perspective view of a peripheral device. In the peripheral device attaching / detaching mechanism shown in these figures, in order to make the peripheral device 101 such as a printer as an option attachable to and detachable from the main body 100 such as a pocket computer, A protruding U-shaped guide rib 102 that serves as a guide when the peripheral device 101 is attached / detached except for one direction, and two mounting angles 103 at regular intervals in the longitudinal direction for holding the peripheral device,
104 and a fixing hole 105 are provided, and a receiving rib 106 that is guided by a guide rib 102 when the peripheral device 101 is attached to and detached from the main body 100 is provided.
Mounting angles 107 and 108 locked by the mounting angles 103 and 104, and a fixed lever 10
And 9 are provided. Then, the peripheral device 10 is attached to the main body 100.
When attaching 1, the receiving rib 10 of the peripheral device 101
While guiding the inner surface of 6 to the outer surface of the guide rib 102 of the main body 100, the peripheral device 101 is moved in the direction of arrow A in FIG. In this way, the mounting angles 107, 108 of the peripheral device 101 are engaged with and locked by the mounting angles 103, 104 of the main body 100, and the fixing lever 109 is slid to fix the fixing holes 10 of the main body 100.
The peripheral device 101 is attached to the main body 100 by being inserted into the device 5 and locked. In addition, the peripheral device 101 is connected to the main body 10
When removing from 0, slide the fixing lever 109 and pull it out from the fixing hole 105, and remove the peripheral device 101 by the arrow A.
By moving in the opposite direction to the mounting angle 107 and 108, the peripheral device 101 is moved to the main body 10
Removed from scratch.

FIG. 19 is a perspective view of a peripheral device attaching / detaching mechanism according to another conventional example. The peripheral device attaching / detaching mechanism shown in FIG.
12 is provided with a screw 113 that goes into the screw hole 111, and when the peripheral device 112 is attached to the main body 110,
Rotate the operation unit 114 of the peripheral device 112 to rotate the screw 113.
Into the screw hole 111 and tighten. At the time of this attachment, the connector 116 facing the opening 115 of the main body 110 and the connector 117 of the peripheral device 112 can be connected. Note that (a) in the figure is the state before mounting, (b)
Shows the states after attachment.

[0005]

In the conventional peripheral device attaching / detaching mechanism of FIGS. 17 and 18, the peripheral device is slid with respect to the main body. When a connector or the like is used to connect to and cannot be used for attachment / detachment, the range of use is limited.

Further, in the case of FIG. 19, the peripheral device is attached to and detached from the main body with a screw, so that the usability is very poor and it is not suitable for one-touch attachment and detachment.

Therefore, it is an object of the present invention to provide a peripheral device attaching / detaching mechanism which has a wide range of use, is convenient, and can be easily attached / detached with one touch.

[0008]

In order to achieve such an object, a first aspect of the present invention is to provide a fixed side holding portion for holding the peripheral equipment and a movable side on a surface of the main body that is attached to and detached from the peripheral equipment. While holding parts are provided at a predetermined distance from each other, a fixed locking part is immovably attached to a surface of the peripheral device that is attached to and detached from the main body at a position where it is locked to the fixed holding part, and the movable holding part. Each of the peripheral devices is provided with a movable locking portion so that the movable locking portion can be moved to a position where the movable locking portion is locked to the movable side holding portion. Is characterized by.

According to a second aspect of the present invention, as shown in claim 2, each of the two locking portions is a projection protruding in a direction orthogonal or substantially orthogonal to a direction in which the peripheral device is attached to and detached from the main body. Each of the holding portions is a hole having a shape into which these protrusions can be inserted, and the sectional shape of each of the protrusion and the hole is non-circular.

According to a third aspect of the present invention, the movable engaging portion is moved by being pressed by the contact pressure with the main body against the spring member when the peripheral device is attached to the main body. Is characterized by.

According to a fourth aspect of the present invention, as described in claim 4, a surface of the movable engaging portion that comes into contact with the main body when the peripheral device is attached to the main body is inclined.

According to a fifth aspect of the present invention, as described in claim 5, the peripheral device is provided with an operating portion for moving the movable locking portion in a direction of releasing the locking state with the movable side holding portion. I am trying.

In a sixth aspect of the present invention, the main body has a connector, the peripheral device has a connector connectable to the connector, and the movable side holding portion and the movable locking portion are respectively provided with the connector. It is characterized in that it is provided at a position closer to both the connectors than the fixed side holding portion and the fixed locking portion.

[0014]

According to the first aspect of the present invention, the peripheral device is brought close to the main body so that the detachable surfaces of the peripheral device come into contact with each other, and the fixed locking portion of the peripheral device is first locked to the fixed side holding portion of the main body, and then the spring. The movable locking part of the peripheral device is moved against the member so that the movable locking part can be locked to the movable side holding part of the main body, and then the movable locking part is held on the movable side by the force of the spring member. The part keeps the locked state. When removing the peripheral device from the main body, the movable locking portion is moved against the spring member to release the locking with the movable side holding portion.

Therefore, since the peripheral device according to the present invention is attached to the main body in such a direction that the detaching surfaces of the peripheral devices are close to each other and is not a slide system as in the prior art, the peripheral device provided with a connector corresponds to this connector. It can be attached to and detached from the main body equipped with the connector. Also, since it does not use screws, it is very convenient and can be attached and removed with one touch.

A second aspect of the invention is a projection in which both the fixed and movable locking portions project in a direction orthogonal or substantially orthogonal to the direction in which the peripheral device is attached to and detached from the main body,
Each of the both holding portions is a hole having a shape into which these protrusions can be inserted, and since the cross-sectional shape of each of the protrusion and the hole is non-circular, the locking portions when these locking portions are respectively locked to the holding portions. Do not rotate in the holding part, and thus there is no rattling that occurs when their cross section is circular.

According to a third aspect of the invention, when the movable locking portion is attached to the main body by the movable locking portion, the movable locking portion moves by being pressed by the contact pressure with the main body against the spring member. When mounting, the operability is improved by just attaching the peripheral device to the main unit.

According to a fourth aspect of the present invention, the movable engaging portion has a surface in contact with the main body when the peripheral device is attached to the main body, so that the movable engaging portion is brought into contact with the main body to move the movable engaging portion. When the stop portion is moved against the spring member, the contact force in the mounting direction also acts in the movement direction, so that the movable locking portion moves smoothly and the operability is improved.

According to a fifth aspect of the present invention, the peripheral device is provided with an operating portion for moving the movable locking portion in a direction for releasing the locking state with the movable side holding portion. The operability of canceling is improved.

According to a sixth aspect of the present invention, since the movable holding portion and the movable locking portion are provided at positions closer to the connectors than the fixed holding portion and the fixed locking portion, respectively, the fixed locking portion is fixed. When the side holding part is locked first, and then the movable locking part is locked to the movable side holding part, the parallelism of the attachment / detachment surfaces of the peripheral device and the main body becomes high, and it takes time when connecting the connectors to each other. Stress is relieved and the connector is not damaged when the connection and disconnection are repeated.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

The peripheral device attaching / detaching mechanism according to the first embodiment of the present invention comprises a portion provided on the main body and a portion provided on the peripheral device. FIG. 1 shows the peripheral device attaching / detaching mechanism portion on the peripheral device side. 2 is a perspective view for particularly showing the peripheral device attaching / detaching mechanism portion on the main body side. The main body provided with the peripheral device attachment / detachment mechanism of the first embodiment is, for example, a pocket computer or other electronic device, and may be any device provided with a connector. Further, as the peripheral device provided with the peripheral device attaching / detaching mechanism of the first embodiment, for example, there is a printer, a battery pack, and other electronic devices, and any device having a connector and connected to the main body may be used.

With reference to FIGS. 1 and 2, the main body 1 has a recess 3 surrounded by a flat bottom wall on which the peripheral device 2 is attached and detached, and flat side walls vertically rising from both side edges of the bottom wall. have. Further, the peripheral device 2 has a convex portion 4 which is shaped to be inserted into the concave portion 3 on a surface which is detachable from the main body 1. In the peripheral device 2, a fixed projection 5 immovably fixed as a locking portion for locking the peripheral device 2 to the main body 1 and a movable projection 6 that can be moved are respectively provided from both side walls 4 a and 4 b of the convex portion 4. It is sticking out. Both side walls 3a of the recess 3 of the main body 1,
3b is provided with a fixed side holding hole 7 and a movable side holding hole 8 which are shaped to hold the projections 4a and 4b as holding portions for holding the peripheral device 2. Each of the protrusions 5 and 6 of the peripheral device 2 can be attached to and detached from the main body 1 by being inserted into the corresponding holding holes 7 and 8 of the main body 1. Each of the holding holes 7 and 8 of the main body 1 has a non-circular cross section for holding the peripheral device 2, for example, a rectangular shape in this embodiment. Both protrusions 5 and 6 of the peripheral device 2 are separated from each other by at least the distance between the side walls 4a and 4b of the convex portion 4. Both holding holes 7 and 8 of the main body 1 are separated from each other by a distance between both inner side walls 3a and 3b of the recess 3. The fixed protrusion 5 of the peripheral device 2 is fixed to the peripheral device 2 and is immovable, and the movable protrusion 6 is provided in the side wall 4b of the convex portion 4 so as to be able to move in and out. A horizontally long operation portion insertion hole 9 is provided on the upper surface of the convex portion 4 of the peripheral device 2, and the operation portion insertion hole 9 is provided.
An operation unit 10 is provided for operating the movable projection 6 in and out of the side wall 4b of the convex portion 4 via the. A rectangular opening 11 is formed on the surface of the main body 1 where the peripheral device 2 is attached and detached, and a connector 12 is provided in the opening 11. The peripheral device 2 is provided with a connector 13 connectable to the main body side connector 12 at a position corresponding to the surface of the main body 1 to which the connector 12 is attached. Due to this structure, the movable projection 6 of the peripheral device 2 is located closer to the connector 13 than the fixed projection 5.

The structure of the peripheral device will be described in more detail with reference to FIG. The peripheral device 2 has a two-part structure including an upper cabinet 14 and a lower cabinet 15. A circuit board 16 with a connector 13 is provided in each of the upper and lower cabinets 14 and 15. The plane size of the circuit board 16 is the same as the plane shape excluding the convex portions 4c and 4d of the upper and lower cabinets 14 and 15 (both convex portions 4c and 4d are abutted to form the convex portion 4). I am doing
As a result, it is sandwiched between the upper and lower cabinets 14 and 15. Then, a U-shaped frame 17 is fixed to the edge portion on one end side of the circuit board 16.
A peripheral device side connector 13 is attached to the device 7 so as to protrude forward from the circuit board 16. An operation portion insertion hole 9 is formed on the upper surface of the convex portion 4c of the upper cabinet 14. Convex portion 4 of each of upper and lower cabinets 14 and 15
Notches 18 and 19 are formed on the side surfaces of c and 4d to form holes for inserting the movable projection 6 by being abutted against each other. Notches 20 and 21 are formed in the upper and lower cabinets 14 and 15, respectively, to form insertion holes for the connector 13 by being abutted against each other. A guide rib 22 is provided in communication with the cutout 19 on the side surface of the convex portion 4d of the lower cabinet 15.
2 is a guide groove 23 for a movable projection between the inner surface of the convex portion 4d and
Is formed. The operation portion 1 is provided on the upper surface of the guide groove 23.
The movable projection 6 in which 0 is integrally formed is inserted. The movable projection 6 also has an insertion portion 6a at the rear portion for inserting the spring member 24 therethrough. The lower cabinet 15 is separated from the guide groove 23 at a position slightly rearward from the spring member 24.
Is formed with a pair of ribs 25 for fixing the ends of the. The movable protrusion 6 is inserted into the guide groove 23, and is inserted into the insertion portion 6a of the movable protrusion 6 and is fixed to the rib 25 at the end thereof by the spring member 24, and one end side thereof is provided with an insertion hole (notches 18, 19). Consists of), that is,
It is pressed in the direction in which it is locked in the movable side holding hole 8 of the main body 1. The operation portion 10 is operated when the movable projection 6 is released from the locked state with the movable side holding hole 8.

Each of the protrusions 5 and 6 is projected from the side walls 4a and 4b of the convex portion 4 of the peripheral device 2 which is orthogonal or substantially orthogonal to the direction of attaching and detaching the peripheral device 2 to the main body 1 as described above. When the peripheral device 2 is attached to the main body 1, the movable protrusion 6 is pressed against the spring member 24 by the contact pressure with the main body 1 and can move along the guide groove 23. Further, since the contact surface 6b with the main body 1 is inclined, the movable projection 6 can be easily moved in the direction of the guide groove 23 by receiving the contact pressure from the main body 1.

The attachment / detachment of peripheral devices to / from the main body will be described with reference to FIGS. 4 to 7. As shown in FIG.
The fixed projection 5 of the peripheral device 2 is locked in the fixed side holding hole 7 of the side wall 3a of the concave portion 3 of the concave part 3, and in this locked state, the peripheral device 2 is held by the fixed projection 5 and the fixed side thereof as shown in FIG. When the connector 13 of the peripheral device 2 is inserted into the opening 11 of the main body 1 and is connected to the connector 12 in the opening 11 when rotated in the direction of the arrow B around the locking position with the hole 7. Then, the movable protrusion 6 on the side wall 4b of the convex portion 4 of the peripheral device 2
Is brought into contact with the upper end surface of the side wall of the concave portion 3 of the main body 1 and is pressed by receiving the contact pressure. As a result, the movable protrusion 6 moves in the guide groove 23 against the spring member force while compressing the spring member 24, as shown in FIG. When facing the movable side holding hole 8 on the side wall of the concave portion 3, the movable protrusion 6 enters the holding hole 8 by the urging force of the return of the spring member 24 as shown in FIG. In this way, the peripheral device 2 is attached to the main body 1. Further, when the peripheral device 2 is removed from the main body 1, when the operating portion 10 is operated in the direction of arrow C as shown in FIG. 7, the movable projection 6 comes out from the movable side holding hole 8 of the main body 1, and then the peripheral device 2 is removed. The peripheral device 2 can be easily removed from the main body 1 by rotating the device 2 in the direction of arrow D as shown in FIG. FIG.
Shows a state in which the peripheral device 2 is attached to the main body 1.

Here, when the sectional shapes of the projections 5 and 6 of the peripheral device 2 and the corresponding holding holes 7 and 8 of the main body 1 are also circular in sectional shape, for example, along the line EE in FIG. As shown in FIG. 9A, which is a cross-sectional view, one of the protrusions 5 easily rotates in the holding hole 7, and the peripheral device 2 is attached to the main body 1
Although there is rattling, the rattling is suppressed between the bottom wall surface of the concave portion 3 of the main body 1 and the convex portion 4 of the peripheral device 1. Therefore, the range of rattling is shown in the figure. It becomes large as indicated by F. On the other hand, in the first embodiment, since the cross-sectional shape is a non-circular rectangle, the rattling of the peripheral device 2 in the detached state with respect to the main body 1 is a rectangular protrusion 5 as shown in FIG. 9B. And the rectangular holding hole 7, the range of rattling becomes small as indicated by G in the figure. Therefore, in the first embodiment, rattling in the state where the peripheral device 2 is attached to the main body 1 is small, and the attachment state is stable.

10 and 11 show a peripheral device attaching / detaching mechanism according to the second embodiment of the present invention. In the first embodiment, holding holes 7 and 8 are formed on both side walls of the recess 3 of the main body 1, respectively. In the second embodiment, the fixed side holding hole 7 is formed in one side wall 3a of the recess 3, but the movable side holding hole 8 is not formed in the other side wall 3b. 11 of the surface where the connector 12 is attached to
A holding claw 26 serving as a holding portion is provided so as to project from the. Further, in the first embodiment, the convex portion 4 of the peripheral device 2
The movable protrusion 6 was provided on the side wall 4b of the
Then, the movable projection 6 is not provided on the side wall 4b of the convex portion 4, but instead, the movable claw 28 as a locking portion is provided from the opening 27 to which the connector 13 is attached. Further, although the operation unit 10 is provided on the upper surface of the convex portion 4 of the peripheral device 2 in the first embodiment, the operation unit 29 is provided in the second embodiment.
Is provided on the side surface 2 a of the peripheral device 2.

FIG. 12 is an exploded perspective view showing a detailed internal structure of the peripheral device of the second embodiment. Referring to FIG. 12, the peripheral device 2 includes an upper cabinet 30 and a lower cabinet 31.
And have. Notches 32 and 33 for forming a connector insertion hole are formed on the front sides of the upper and lower cabinets 30 and 31, respectively, and a notch 34 for forming an insertion hole of the operation unit 29 on the side surface side (however, the upper cabinet. Notches are not shown in the figure). The operating portion 29 is housed in the cabinet so that it is exposed to the outside by the urging force of the spring member 35 from the operating portion insertion hole formed by abutting the notches 34 on the side surfaces of both cabinets 30 and 31. The operation unit 29 is attached to the boss (not shown) of the upper cabinet 30 with the spring member 35 by screws 36, and
The side portion 29a of the spring member 35 is pressed by the one end side 35a thereof and is biased in a direction of protruding to the outside of the cabinet.
The circuit board 37 sandwiched between the cabinets 30 and 31 is provided with required connector parts 38 in addition to the connector 12 for the main body. Both cabinets 30,
31 is assembled integrally with a screw 39.

Referring to FIGS. 13 to 16, the operation of attaching and detaching the peripheral device 2 to and from the main body 1 by the peripheral device attaching / detaching mechanism according to the second embodiment will be described. First, as shown in FIG. The fixing protrusion 5 of the peripheral device 2 is locked in the fixed side holding hole 7, and the peripheral device 2 is locked in this locked state.
As shown by 4, when the fixing protrusion 5 and the fixing side holding hole 7 are pivoted in the direction of the arrow B around the locking position, the connector 13 of the peripheral device 2 enters into the opening 11 of the main body 1. At the same time, the movable claw 28 of the peripheral device 2 is connected to the connector 12 in the opening 11, and the movable claw 28 of the peripheral device 2 goes through the state of FIG. It is locked to the holding claw 26 of. In this way, the peripheral device 2 is attached to the main body 1. When the peripheral device 2 is detached from the main body 1, the operating portion 29 is pressed in the direction of arrow C as shown in FIG.
Since the engagement state with the holding claw 26 is released, the peripheral device 2 can be easily removed from the main body 1 by rotating the peripheral device 2 in the direction of arrow D as shown in FIG. In the second embodiment, the operation of removing the peripheral device 2 from the main body 1 is a pressing operation, so that the operation is easier than the sliding operation when the peripheral device is removed from the main body.

[0031]

As described above, according to the present invention, the fixed-side holding portion and the movable-side holding portion for holding the peripheral device are separated from each other by a predetermined distance on the surface of the main body that is attached to and detached from the peripheral device. On the other hand, on the surface of the peripheral device that is attached to and detached from the main body, a fixed locking portion is immovably fixed at a position locked by the movable holding portion, and a movable locking member is movable at a position locked by the fixed holding portion. Since each of the peripheral devices is provided with a spring member that presses the movable locking portion in the direction in which the movable holding portion is locked to the movable side holding portion, the fixed locking portion of the peripheral device is first provided. It is locked to the fixed side holding part of the main body, and then the movable locking part of the peripheral device is moved against the spring member so that the movable locking part can be locked to the movable side holding part of the main body. Holds the movable locking part in the movable side holding part by the force of the spring member Attached to the main body of the peripheral devices by,
In addition, the peripheral device can be detached from the main body by moving the movable locking part against the spring member to release the locking with the movable side holding part, so mounting the peripheral device to the main body Since the attachment / detachment surfaces are close to each other and not the conventional slide system, peripheral devices equipped with connectors can be attached / detached to the body with connectors without unnecessary stress on the connectors, and screws etc. Since it does not use, it is very easy to use and can be attached and detached with one touch.

[Brief description of drawings]

FIG. 1 is an external perspective view of a main body and a peripheral device equipped with a peripheral device attaching / detaching mechanism according to a first embodiment of the present invention.

FIG. 2 is an external perspective view of the main body of FIG. 1 viewed from different angles.

FIG. 3 is an exploded perspective view of a peripheral device including the peripheral device attaching / detaching mechanism of the first embodiment.

FIG. 4 is a diagram for explaining an attaching / detaching operation of the peripheral device to / from the main body by the peripheral device attaching / detaching mechanism of the first embodiment.

FIG. 5 is a diagram for explaining a detaching operation of the peripheral device attaching / detaching mechanism to / from the main body of the first embodiment.

FIG. 6 is a diagram for explaining an attaching / detaching operation of the peripheral device to / from the main body by the peripheral device attaching / detaching mechanism of the first embodiment.

FIG. 7 is a diagram for explaining an attaching / detaching operation of the peripheral device to / from the main body by the peripheral device attaching / detaching mechanism of the first embodiment.

FIG. 8 is a diagram showing a state in which the peripheral device is attached to the main body by the peripheral device attaching / detaching mechanism of the first embodiment.

9 is a cross-sectional view taken along the line EE of FIG.
In the peripheral device attaching / detaching mechanism of (a), (a) is a diagram for explaining rattling between the peripheral device and the main body when the holding hole and the protrusion have a circular cross-sectional shape, and (b) is a diagram illustrating the holding hole and the protrusion. FIG. 8 is a diagram for explaining rattling between a peripheral device and a main body when the cross-sectional shape of is a rectangle.

FIG. 10 is an external peripheral device attaching / detaching mechanism of a peripheral device equipped with a peripheral device attaching / detaching mechanism and a main body according to the second embodiment of the present invention.

FIG. 11 is an external perspective view of the main body of the second embodiment viewed from different angles.

FIG. 12 is an exploded perspective view of a peripheral device according to a second embodiment.

FIG. 13 is a diagram for explaining an attaching / detaching operation of the peripheral device to / from the main body by the peripheral device attaching / detaching mechanism of the second embodiment.

FIG. 14 is a diagram for explaining an attaching / detaching operation of the peripheral device to / from the main body by the peripheral device attaching / detaching mechanism of the second embodiment.

FIG. 15 is a diagram for explaining an attaching / detaching operation of the peripheral device to / from the main body by the peripheral device attaching / detaching mechanism of the second embodiment.

FIG. 16 is a diagram for explaining an attaching / detaching operation of the peripheral device to / from the main body by the peripheral device attaching / detaching mechanism of the second embodiment.

FIG. 17 is an external perspective view of a peripheral device including a peripheral device attaching / detaching mechanism of a conventional example and a main body.

18 is an external perspective view of the main body of FIG. 17 seen from a different angle.

FIG. 19 is an external perspective view of a peripheral device equipped with a peripheral device attaching / detaching mechanism of another conventional example, and FIG. 19A is a diagram showing a state in which the peripheral device is not attached to the main body;
(B) is a figure which shows the state which the peripheral device was attached to the main body.

[Explanation of symbols]

 1 Main body 2 Peripheral device 3 Recessed portion 4 Convex portion 5 Fixed protrusion 6 Movable protrusion 7 Fixed side holding hole 8 Movable side holding hole 10 Operating part 12 Connector 13 Connector

Claims (6)

[Claims] 1. A peripheral device attaching / detaching mechanism for detachably attaching a peripheral device to a main body, wherein a fixing side holding portion for holding the peripheral device is movable on a surface of the main body for attaching / detaching the peripheral device. While the side holding portions are provided at a predetermined distance from each other, a fixed locking portion is immovably provided at a position where the peripheral equipment is attached / detached to / from the main body at a position where the fixed holding portion is locked. Each of the peripheral devices is provided with a movable locking portion so as to be movable at a position where the movable locking portion is locked to the portion, and further, the peripheral device is provided with a spring member that presses the movable locking portion in a direction to lock the movable holding portion. Peripheral equipment attachment / detachment mechanism characterized in that 2. Each of the both locking portions is a protrusion protruding in a direction orthogonal or substantially orthogonal to a direction of attaching and detaching the peripheral device to the main body, and each of the both holding portions can receive these protrusions. The peripheral device attaching / detaching mechanism according to claim 1, wherein the peripheral device attachment / detachment is a hole having a shape, and each of the protrusion and the hole has a non-circular cross-sectional shape. 3. The movable locking portion is moved by being pressed by a contact pressure with the main body against the spring member when the peripheral device is attached to the main body. Peripheral equipment detachment mechanism described. 4. The peripheral device attaching / detaching mechanism according to claim 3, wherein a surface of the movable engaging portion that contacts the main body when the peripheral device is attached to the main body is inclined. 5. The peripheral device is provided with an operation portion for moving the movable locking portion in a direction of releasing the locked state with the movable side holding portion. The peripheral device attachment / detachment mechanism according to any one of 1. 6. The main body has a connector, the peripheral device has a connector connectable to the connector, and the movable side holding portion and the movable locking portion are respectively the fixed side holding portions. 6. The peripheral device attachment / detachment mechanism according to claim 1, wherein the peripheral device attachment / detachment mechanism is provided at a position closer to both the connectors than the portion and the fixed locking portion.