JPH09139582A - Cover opening/closing device for external connection terminal and electronic unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a device without damaging the operator's sense of pushing the whole cover. SOLUTION: The opening/closing device is constituted by the cover 2 provided with a shielding part 20 engaged with the opening part 10 of a chassis 1 and by a holder 3 supporting the cover 2 so that it can slide. Outstanding shafts 41 and 43 protruding sideways are provided on the closing-side end and the opening-side end of the cover 2. Then, guide grooves 60 and 63 engaging the outstanding shafts 41 and 43 of the cover 2 so that they can slide are formed on the inner face of the side wall of the holder 3. The holder 3 is provided with an elastic piece 8 extending towards the opening part 10 from the holder 3 so as to push and energize the cover 2 toward the opening part 10. Then, the shielding part 20 is engaged with the opening part 10. In the guide groove 60 on the closing-side, which is provided for the holder 3, the groove bottom face is formed by a flexible piece 61 which can elastically be deformed in a depressing direction. The elastic piece 8 and the flexible piece 61 are deformed with a depressing operation on the shielding part 20 and the whole cover 2 is displaced in the depressing direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device, such as a digital camera, having external connection terminals for power supply, data transfer, etc., which is opened and closed in an opening of the electronic device to which the external connection terminal is attached. When possible to fit, when not using the external connection terminal, the opening is covered with a cover,
The present invention relates to a cover opening / closing device that protects external connection terminals, and an electronic device including the cover opening / closing device.

[0002]

2. Description of the Related Art A digital camera is a flash memory built in the camera and a PC that can be externally attached to and detached from the camera.
Shooting data is stored in a memory device such as a memory card. Of these, if the memory device is built in the camera, a data transfer connection terminal (90) is provided in the camera in order to transfer the captured data to a reproducing device such as a personal computer or a printer. In addition, a normal electronic device is capable of rectifying and using an external AC power supply, and has an external power supply connection terminal (91) for that purpose. The data transfer connection terminal (9
0), when the external connection terminal (9) such as the external power supply connection terminal (91) is not used, especially when carrying or shooting.
In order to prevent damage or malfunction of those connection terminals,
The connection terminals must be protected by covering them with a cover. Some of the covers can be attached to and detached from the camera, and others can be slid in the camera. In the latter case, as shown in Fig. 1, the camera chassis
An opening (10) is provided on the end face of (1), and an external connection terminal (9) is provided inside thereof. The connection terminal (9) is fixed by a fixing means such as a holder (3) at a position where it can be connected to the connection cable. The holder (3) comprises a cover (2) fitted in the opening (10) so that it can be retracted and retracted, and urges this in the pushing direction, and the cover (2) is pressed by the finger force from the operating side. Then, slide it down one step from the opening (10).

The conventional cover (2) and holder (3) are formed as shown in FIG. The holder (3) is a frame body fixed to the back surface of the chassis (1) and is a chassis (1).
A terminal mounting surface (70) to which the external connection terminal (9) is mounted is provided at a position corresponding to the opening (10). Cover (2)
Is a protruding shaft (41) (43) fitted to the frame body of the holder (3) and laterally protruding from the closing side end and the opening side end of the cover (2).
The guide groove (6) formed on the inner surface of the side wall (6) of the holder (3).
0) (63) lock and cover (2) in the frame of holder (3)
It is slidably supported in the opening and closing direction. holder
The guide groove (60) on the closing side of (3) is inclined obliquely away from the chassis opening (10), and the guide groove (63) on the opening side and the vertical portion (64) formed in the pressing direction. It is formed in an L shape having a horizontal portion (65) formed in the sliding direction. The cover (2) is a shield (20) that fits into the chassis opening (10).
The elastic piece (8) protruding from the holder (3)
(20) The rear surface is pushed up to hold the fitting in the opening (10).

When the chassis opening (10) is shielded by the cover (2), the cover shield (20) is pushed out by the elastic piece (8) as shown in FIG. ) Is fitted. When the opening portion (10) is opened, the shielding portion (20) is pressed by a finger against the urging force of the elastic piece (8).
As shown in (b), the cover (2) rotates about the closed side protruding shaft (41) as a rotating shaft so as to sink into the chassis (1), and the open side protruding shaft (43) Move the vertical part (64) of the corresponding guide groove (63). Further, if a force is applied to the opening side (downward of the camera in FIG. 1) of the shielding part (20) with a finger, the cover is closed.
(2) Slide the back side of the chassis (1) along the horizontal part (65) of the guide groove (60) on the closing side and the guide groove (63) on the opening side as shown in FIG. 7 (c). Thus, the terminal mounting surface (70) is exposed at the opening (10), and the external connection terminal (9) and the connection cable can be connected. In order to close the opening (10) with the cover (2), a force is applied to the closing side (upper side of the camera in FIG. 1) of the shielding part (20), and it slides in the opposite direction to the above,
Returning to the state of FIG.

[0005]

In the case of the cover opening / closing device as described above, the elastic piece (8) of the holder (3) does not cover the terminal mounting surface (70) so as not to cover the terminal mounting surface (70). ) Need to be deployed closer to the open side. However,
When the cover (2) is shielded, the elastic piece (8) has to urge the center of the shield portion (20) of the cover (2), so that the terminal mounting surface (70) is located in the chassis opening (10). It will be deployed so as to project to the closed side half. Therefore, the opening (10)
Must be at least twice as large as the terminal mounting surface (70). If the position where the elastic piece (8) biases the shield (20) is brought close to the open end of the shield (20),
As a result, it is necessary to further shift the fixing position of the elastic piece (8) to the holder (3) in the opening direction, and the holder (3) becomes large. Moreover, since the motion of pushing the cover (2) is a rotary motion with the projecting shaft (41) on the closing side as the rotary shaft, the displacement of the cover due to the rotary motion is closer to the open side than the center of the shielding part (20). The end is larger. Thereby elastic pieces
The urging force of (8) becomes large, and against this, the finger is blocked (2
It is necessary to press 0) greatly. In order to reduce the biasing force of the elastic piece (8) without changing the displacement amount of the cover (2), it is necessary to further lengthen the elastic piece (8).
(3) will become larger.

The cover (2) is rotated around the protruding shaft (41), but the operator of the cover (2) feels that the cover shield (20) is pressed by the finger. In order to provide the above, it is necessary to dispose the protruding shaft (41) and the guide groove (60) of the holder (3) as far as possible from the opening (10). If the distance from the protruding shaft (41) to the opening (10) is short, the turning radius is small, so it is necessary to press the open end of the shield (20) in order to obtain the desired pushing displacement. Therefore, the pressing portion is narrowed and the load is concentrated on a part of the finger, which gives the operator an uncomfortable feeling. However, if the protruding shaft (41) opens through the opening (10)
If the distance to the distance is set to be large and the radius of rotation is increased, the entire displacement of the shielding portion (20) can be pressed and a desired pushing displacement can be obtained, but the holder (3) becomes large.

[0007]

The object of the present invention is to provide a cover (2) having substantially the same size as the opening (10) without increasing the size of the holder (3).
The opening (10) is shielded, and the rotary shaft is not provided.
(0) An object of the present invention is to provide a cover opening / closing device that can press the whole and slide the cover (2), and an electronic device using the same.

[0008]

Means for Solving the Problems To solve the above problems,
The present invention is configured as follows. The cover includes a cover that fits in the opening of the chassis, and a holder that slidably supports the cover. The cover has a closing side end and an opening side end, each of which has a protrusion protruding laterally. A guide groove is formed on the inner surface of the side wall of the holder to slidably fit the protruding shaft of the cover, and the guide groove on the closing side separates from the chassis opening as the cover slides in the opening direction. The guide groove on the opening side is formed obliquely downward toward the opening side, and is formed in an L shape that continues in the pressing direction and further in the sliding direction, and the holder has an elastic member extending from the holder toward the chassis opening. In the cover opening and closing device that includes a piece and pushes the cover toward the chassis opening to fit the cover shielding part into the chassis opening, the guide groove on the closing side provided in the holder is a groove. Surface is formed by an elastically deformable deforming pieces in the pressing direction, the pressing operation for the cover shield portion, by deforming the elastic piece and deforming pieces, to displace the entire cover in the pressing direction.

[0009]

[Operation and effect] When the cover is pressed with a finger, the cover deforms the bending piece formed in the guide groove on the closing side of the holder, and the closing end of the shielding also sinks into the chassis. The cover operator can be given the sensation of pressing the entire shielding portion into the chassis, and the device can be downsized. Further, the amount of sinking displacement of the cover is substantially the same at any position of the shielding portion, and even if the biasing position of the elastic piece with respect to the cover is provided at an arbitrary position of the shielding portion, the biasing force of the elastic piece hardly changes. . If the biasing position is the outer edge formed on the open side end surface of the shielding portion, the size of the opening can be made as narrow as the size of the terminal mounting surface, and the design of the electronic device can be improved.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1, the cover opening / closing device of the present invention is provided with an opening (10) formed in a rectangular shape on an end surface of a chassis (1) of a camera and arranged inside thereof.

The cover (2) and the holder (3) are formed in the shape shown in FIG. 2 by injection molding of synthetic resin. cover
(2) has a shielding part (20) fitted in the chassis opening part (10). The shielding part (20) is formed along the opening (10) and the surface of the chassis (1), but since the chassis (1) is rounded, it is thicker on the open side than on the closed side. Has been done. The operation side surface of the shielding part (20) is formed into a rough surface in order to prevent the finger to be pressed and operated from slipping, and a V-shaped groove (25) is formed at a position open from the center of the surface. It is formed. A handle (24) is provided in an arched shape on the end surface of the shielding portion (20) on the closing side so that a finger that slides when the cover (2) is closed can be hooked. As shown in FIG. 4, when the cover (2) is opened, the elastic piece tip (80) of the holder (3), which will be described later, is locked to the back surface of the shield (20) to keep the cover (2) open. A hanging claw (50) is provided at the closed end. Shield (2
A step edge (23) that receives the biasing force of the elastic piece (8) described later is provided on the open side end surface of (0), and on the back surface of the step edge (23), the tip of the elastic piece (8) is provided. Groove (51) into which the formed protrusion (82) fits
Is formed. From the leg pieces (40) (42) provided at both ends of the side wall (22) of the shield (20) in the sliding direction, the protruding shafts (41) (43) are projected laterally. In order to prevent the cover (2) from coming out of the holder (3), one of the four protruding shafts
(41a) is formed longer than the other salient shafts.

The holder (3) is formed in a rectangular frame shape so that the cover (2) can slide. Guide grooves (60) (63) are formed on the cover closing side and opening side of both side walls (6) in the longitudinal direction of the frame. The guide groove (60) (63)
Is formed at a position where it engages with the protruding shafts (41) (43) of the cover (2). The guide groove (60) on the closing side is close to the opening (10) on the closing side so that the cover shield (20) fits into the chassis opening (10) when the cover (2) is closed. Also, cover (2)
As is slid toward the open side, it is formed so as to be inclined so as to be separated from the opening (10). The base of the groove of the guide groove (60) is fixed to the side wall (6) and extends obliquely, and the tip of the groove is formed by a bendable piece (61). The cover
Corresponding to the long protruding shaft (41a) of (2), the supporting blade (62) projects laterally along the edge of the guide groove (60) on the groove bottom side. The guide groove (63) on the open side has the opening on the closed side as described above.
It is formed on the side close to (10) and is formed in a substantially L shape having a vertical portion (64) and a horizontal portion (65) so that it can be pressed and slidably moved.

A terminal mounting surface (70) is formed at a position corresponding to the chassis opening (10) in the closed side portion of the holder (3). The terminal mounting surface (70) is formed with an opening (71) for connecting the external connection terminal (9) to a connection cable. Also, as shown in FIG. 3, the terminal mounting surface (70) and the holder side wall
Between (6), the leg pieces (4
The recess (72) is formed in a groove shape so that the (0) can move. A bridge (31) is formed between the side walls (6) and (6) at the opening side portion of the holder (3), and an elastic piece (8) is arranged at the center of the bridge (31). The elastic piece (8) is a bridge (31).
It extends from the center toward the chassis opening (10), and the tip extends parallel to the sliding direction. Further, a projection (82) is formed on the tip end portion toward the opening (10). The tip (80) of the elastic piece (8) is further directed toward the opening (10) in order to urge the opening side end of the shield (20) to fit and hold the opening (10). Is growing. A leg piece (30) having a hole for fixing the holder (3) to the chassis (1) is projected on the closed side portion, the central portion and the open side portion on the back side of the holder side wall (6). Similarly, the holder
A leg piece (30) is also provided on the closed end surface of (3).

Next, a procedure for attaching the cover opening / closing device formed as described above to the chassis (1) will be described. Fit the cover (2) into the holder (3). At this time, cover (2)
The long protruding shaft (41a) of the corresponding guide groove of the corresponding holder (3).
It is fitted to the front end of the closing side of (60), the protruding shaft (41a) is slid along the guide groove (60), the cover (2) is slanted, and the other protruding shaft of the closing side (41) corresponds. Fit in the guide groove (60).
Then, with the cover (2) along the holder (3), place the open side protruding shaft (43) on the notch (66) of the holder (3), and spread the holder side wall (6) slightly outward. Cover (2)
Press. The external connection terminals (9) are attached to the terminal mounting surface (70) of the holder (3), and the leg pieces (30) of the holder (3) are fixed to the chassis (1) with screws or the like.

FIG. 5 is a sectional view when the cover opening / closing device of the present invention is fixed to the chassis (1) as described above. The operation of the cover opening / closing device will be described below. In FIG. 5, the terminal mounting surface (70) and the external connection terminal (9)
Is indicated by a one-dot chain line. When the cover (2) is shielded, see FIG.
As shown in (a), the elastic piece (8) pushes the closing side end of the cover shielding part (20) and the step edge (23) and pushes it, and the shielding part (20).
Fits into the chassis opening (10), and the projection (82) of the elastic piece (8) fits into the groove (51) of the step edge (23) to maintain that state. To open the cover (2), press the shielding part (20) from the operating side with your finger, and as shown in FIG.
The elastic piece (8) and the bending piece (61) of (3) bend and the cover (2)
The whole is pressed and displaced. Further, when a force is applied to the open side of the shield portion (20) with a finger, the projecting shafts (41) (43) of the cover (2) are moved to the guide groove () of the holder (3) as shown in FIG. Slide along 60) (63). When the protruding shaft (41) on the closing side passes the portion of the bending piece (61), the pressing force acting on the bending piece (61) is lost, so the bending piece (61) returns to its original shape, but the elastic piece (8)
Always biases the cover (2). And the salient shaft (41)
When (43) reaches the open end of the guide grooves (60) (63),
As shown in (d), the shielding part (20) opens substantially the entire chassis opening (10), the terminal mounting surface (70) is exposed, and the mounted external connection terminal (9) is connected to the connection cable. be able to.
Further, the hook (50) on the back side of the shielding part (20) is hooked on the tip (80) of the elastic piece (8), so that the cover (2) can be kept open. To close the cover (2), shield (20)
When a finger is hooked on the handle (24) and a force is applied to the closing side, the handle (24) slides in the direction opposite to the above and returns to the state of FIG. 5 (a) by the urging force of the elastic piece (8).

Therefore, since the cover (2) can open and close substantially the entire chassis opening (10), the opening (10)
The area of (10) can be made as narrow as the area of the terminal mounting surface (70). Further, since it is not necessary to provide a rotary shaft, the size of the cover (2) can be set to about the chassis opening (10), so that the size of the cover opening / closing device can be reduced and the design of the electronic device can be improved. It is possible to increase the number of parts built into the.

In this embodiment, the chassis opening (1
The shape of 0) is rectangular, but any shape can be freely selected as long as the external connection terminal (9) can be exposed. In that case, naturally, the cover shielding part (20) needs to be formed in a shape that fits into the opening part (10). Also, the external connection terminal (9)
Can be fixed not to the holder (3) but to another fixing member near the terminal mounting surface (70) to connect the connection cable through the terminal opening (71).

The description of the above embodiment is for the purpose of illustrating the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. or,
The configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims.

[Brief description of the drawings]

1A and 1B are schematic diagrams of a digital camera embodying the present invention, in which FIG. 1A is a shielded state of an external terminal and FIG. 1B is an open state.

FIG. 2 is a perspective view of the cover opening / closing device of the present invention when the cover and the holder are assembled.

3 is a sectional view of the holder of FIG. 2 taken along the line AA.

FIG. 4 is a perspective view of the cover of the cover opening / closing device of the present invention viewed from the back side.

5A and 5B are schematic diagrams showing the operation of the present invention, in which FIG. 5A is a shielded state, FIG. 5B is a state in which the cover is pushed in, and FIG.
Shows the state where the cover is slid, and (d) shows the opened state.

FIG. 6 is a perspective view of a conventional cover opening / closing device when a holder and a cover are assembled.

7A and 7B are schematic diagrams showing the operation of the conventional cover opening / closing device, in which FIG. 7A is a shielded state, FIG. 7B is a state in which the cover is pushed in, and FIG. Is in the open state.

[Explanation of symbols]

 (1) Chassis (2) Cover (3) Holder (8) Elastic piece (41) (43) Protruding shaft (60) (63) Guide groove (61) Bending piece (70) Terminal mounting surface

Claims (3)

[Claims] 1. A cover (2) having a shield (20) which fits into an opening (10) of a chassis (1), and a holder (3) slidably supporting the cover (2). Composed and covered
The closed side end and the open side end of (2) are provided with protruding shafts (41) (43) projecting to the side, and the inside of the side wall (6) of the holder (3) has a cover (2). Guide grooves (60) (63) are formed so that the protruding shafts (41) (43) can be slidably fitted, and the guide grooves (60) on the closing side are opened as the cover (2) slides in the opening direction. (Ten)
The guide groove (63) on the opening side is formed in an L shape that continues in the pressing direction and further in the sliding direction, and is formed in the holder (3). An elastic piece (8) extending from the holder (3) toward the opening (10) is provided to push the cover (2) toward the opening (10) and push the cover (20) toward the opening (10). ) In the cover opening and closing device, the closing side guide groove (60) provided in the holder (3) is formed by a bending piece (61) whose bottom surface is elastically deformable in the pressing direction, and the shielding part (20). A cover opening / closing device that deforms the elastic piece (8) and the bending piece (61) by a pressing operation on the cover to displace the entire cover (2) in the pressing direction. 2. The holder (3) is an opening of the chassis (1).
The cover according to claim 1, which has a length about twice that of the (10) and which forms the external connection terminal mounting surface (70) inside the closed side end of the holder (3). Switchgear. 3. The opening (10) in the chassis (1) is provided with the opening.
A cover opening / closing device comprising a cover (2) having a shielding part (20) fitted with the (10) and a holder (3) slidably supporting the cover (2) is attached.
(3) is the external connection terminal mounting surface (70) inside the closed end.
The external connection terminal (9) is attached to the mounting surface (70), and the protruding shaft (41) (which protrudes to the side) is provided at the closing side end and the opening side end of the cover (2). 43) with holder (3)
On the inner surface of the side wall (6) of the cover, guide grooves (60) (63) for slidably fitting the protruding shafts (41) (43) of the cover (2) are formed, and the guide groove (60) on the closing side is As the cover (2) is slid in the opening direction, the guide groove (63) on the opening side is formed obliquely so as to move downward from the opening (10) toward the opening side. The holder (3) is provided with an elastic piece (8) extending from the holder (3) toward the opening (10) and the cover (2) is opened.
Pushing toward the (10), the shielding part (20) is fitted into the opening part (10), and the guide groove (6) on the closing side provided in the holder (3).
(0), the groove bottom surface is formed by a bending piece (61) that is elastically deformable in the pressing direction, and by the pressing operation on the shielding part (20),
An electronic device comprising a cover opening / closing device for deforming the elastic piece (8) and the bending piece (61) to displace the entire cover (2) in the pressing direction.