JP5178566B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic apparatus for assembling and fixing an exterior cover.

  2. Description of the Related Art In recent years, electronic imaging apparatuses that record image signals, image information, and the like output from an image sensor as data files have become widespread. This electronic image pickup apparatus (hereinafter referred to as a digital camera) compresses and records image data obtained by photoelectric conversion from an image pickup device into image data in a file format such as JPEG.

  As an exterior of such a digital camera, there is a configuration in which a plurality of exterior parts divided in the front-rear (or left-right) direction are integrated and an internal component is covered with an exterior cover. In particular, in digital cameras, the exterior is molded with metal (aluminum, stainless steel, titanium, etc.) to achieve a high-quality appearance. There is something that gives a high-class feeling due to the texture of the material.

  In such a metal exterior cover, if the structure is attached with screws from the outside, the quality of the appearance is deteriorated, and when the digital camera is gripped, the unevenness of the screws may touch the fingers and feel uncomfortable. Further, in a structure in which a metal outer cover is fastened with a screw, a user may remove the screw, remove the outer cover, touch an internal precision electronic component, and cause a failure. For this reason, a digital camera is required to have an exterior cover assembly structure in which screws exposed on the surface of the exterior cover are reduced.

  Therefore, some digital cameras reduce the number of screws by a structure in which the exterior cover is assembled by joining the divided exterior components by a hook shape hidden inside the exterior cover (particularly the upper surface).

  The coupling structure that engages and integrates the exterior parts divided using the hook shape is configured by a plurality of hook shapes provided in one of the exterior covers and a plurality of hole shapes provided in the other. .

  For this reason, in this structure, due to dimensional errors in manufacturing between the hook claw shape and the hole shape, a gap is generated between the outer covers and the appearance quality is impaired. There is.

  Therefore, in the structure using this hook claw shape and hole shape, when the operator assembles the exterior cover in the manufacturing process of the digital camera, the operator holds the exterior cover with his hand and eliminates the gap as much as possible. Tighten the screw. This necessitates an operation step of reducing the gap between the joints of the exterior cover of the assembled digital camera. However, the work of reducing the gap between the joints of the exterior cover is a burden on the operator, and the workability of the assembly process is reduced. Further, the structure in which the exterior cover is fastened only by fixing the hook cannot withstand the impact at the time of dropping. Further, in the structure in which the exterior cover is fastened only by fixing the hook, once the hook claw is dropped from the hole, there is a possibility that it cannot be repaired.

  Therefore, a conventional digital camera has been proposed in which a clearance adjustment mechanism that adjusts the clearance of the joint of the exterior cover is provided (see, for example, Patent Document 1). In this structure, the joint of the rear cover and the front cover is configured to be coupled by the locking claw and the locking hole. Further, in this gap adjusting mechanism, the linking member is attached to the rear cover, and the locking claw is attached to the front cover. The link member is integrally provided with a slope member in which a locking hole is formed and a slope for operation is formed. Then, the inclined surface of the inclined member is configured such that the head portion of the screw shaft portion mounted so as to be able to advance and retract according to the lead of the screw is brought into contact.

  In this gap adjustment mechanism, the operator rotates the screw shaft portion with the locking claw engaged with the locking hole of the linkage member, so that the slope of the slope member is moved at the head portion of the screw shaft portion. By pushing, the linkage member is configured to be movable. In addition, the spring which urges | biases a linkage member is constructed so that the head of a screw shaft part and the slope of a slope member may always contact | abut.

  In the gap adjusting mechanism configured as described above, the operator rotates the screw shaft portion to push the inclined surface of the inclined member with the head portion of the screw shaft portion. Thereby, in the gap adjustment mechanism, the operation of closing the joint between the front cover and the rear cover by moving the linkage member and pulling the locking claw engaged with the locking hole of the linkage member is performed.

JP 2008-141129 A

  However, the exterior cover assembly structure described above needs to be configured to withstand the impact of dropping. For this reason, in this assembly structure of the exterior cover, it is necessary to increase the rigidity of the linkage member integrally formed with the locking holes and to increase the strength of the screw shaft portion that pushes the slope of the slope member provided in the linkage member.

  Also, in this exterior cover assembly structure, a spring that biases the linkage member is required to mount the linkage member so as to be movable and maintain the contact state between the head of the screw shaft and the slope of the slope member. The structure is complicated and the number of parts is large. For this reason, in this assembly structure of the exterior cover, it is difficult to reduce the size of the digital camera due to the complicated configuration, and there is a problem of an increase in cost due to an increase in the number of parts.

  SUMMARY OF THE INVENTION An object of the present invention is to reduce the number of screws exposed to the exterior of an electronic device and to narrow the gap that becomes the joint of the exterior cover. Build the structure. It is another object of the present invention to provide an electronic device that has a high-quality appearance and can constitute a high-quality electronic device that is free from looseness.

  In order to achieve the above object, an electronic device of the present invention is an electronic device in which one exterior cover is attached to the other exterior cover, and the one exterior cover includes a first side of the one exterior cover. And a screw hole for fixing the one exterior cover and the other exterior cover with screws on a second side orthogonal to the first side, The outer cover is formed with a protrusion that contacts the screw screwed into the screw hole, and a slope that contacts the locking claw and pulls the one outer cover to the other outer cover. A member is movably attached, and the screw is screwed into the screw hole so that the screw comes into contact with the projection and the inclined surface comes into contact with the locking claw. It is made to move.

  ADVANTAGE OF THE INVENTION According to this invention, the screw | thread exposed on the upper surface of the external appearance of an electronic device can be reduced, and the clearance gap used as the joint line of an exterior cover can be narrowed. Furthermore, it is possible to provide an electronic device that has a simple configuration, has a small number of parts, and can be manufactured at low cost. In addition, there is an effect that a high-quality electronic device having a high-quality appearance and free of backlash can be configured.

It is the disassembled perspective view which looked at the digital camera concerning embodiment of the exterior cover assembly structure of the electronic device of this invention from the front side. 1 is a front perspective view of a digital camera according to an embodiment of an exterior cover assembly structure of an electronic device of the present invention. 1 is a rear perspective view of a digital camera according to an embodiment of an exterior cover assembly structure of an electronic device of the present invention. It is the disassembled perspective view which looked at the digital camera concerning embodiment of the exterior cover assembly structure of the electronic device of this invention from the front side. It is the disassembled perspective view which looked at the digital camera concerning embodiment of the exterior cover assembly structure of the electronic device of this invention from the back side. (A), (B), and (C) are main part expanded sectional views which take out and show the part of the fastening mechanism in the digital camera concerning embodiment of this invention. (A) (B) is a principal part expanded sectional view which takes out and shows the part of the fastening mechanism of another structure in the digital camera concerning embodiment of this invention. (A) and (B) are the principal part expanded sectional views which take out and show the part of the exterior structure of the fastening mechanism of another structure in the digital camera concerning embodiment of this invention. It is a principal part expansion perspective view which takes out and shows the movable locking member in the fastening mechanism in the digital camera concerning embodiment of this invention.

  Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings.

  Note that the embodiment described below is an example as means for realizing the present invention, and it is needless to say that various embodiments can be adopted without departing from the gist of the present invention.

  FIG. 1 is an exploded perspective view of a digital camera according to an embodiment of an exterior cover assembly structure for an electronic device of the present invention as seen from the front side.

  FIG. 2 is a front perspective view of the digital camera according to the embodiment of the exterior cover assembly structure of the electronic device of the present invention.

  FIG. 3 is a rear perspective view of the digital camera according to the embodiment of the exterior cover assembly structure of the electronic device of the present invention.

  FIG. 4 is an exploded perspective view of the digital camera according to the embodiment of the exterior cover assembly structure of the electronic device of the present invention as seen from the front side.

  FIG. 5 is an exploded perspective view of the digital camera according to the embodiment of the exterior cover assembly structure of the electronic device of the present invention as seen from the back side.

  FIGS. 6A, 6B, and 6C are enlarged cross-sectional views of the main part, showing a portion of the fastening mechanism in the digital camera according to the embodiment of the present invention.

  FIGS. 7A and 7B are enlarged cross-sectional views of the main part of the digital camera according to the embodiment of the present invention.

  FIGS. 8A and 8B are enlarged cross-sectional views showing the main part of the exterior structure of a fastening mechanism of another configuration in the digital camera according to the embodiment of the present invention.

  FIG. 9 is an essential part enlarged perspective view showing the movable locking member 13 in the fastening mechanism in the digital camera according to the embodiment of the present invention.

  1 to 5, reference numeral 1 denotes a digital camera body (electronic imaging apparatus body). The digital camera body 1 is mounted on a circuit board with a member that enables photographing, for example, an image sensor (not shown) such as a CCD or CMOS image sensor that photoelectrically converts an optical image to generate image data. With what was done.

  In the digital camera body 1, the exterior cover is configured as a three-sheet cover including a front cover 2 (one exterior cover), a center cover 3 (the other exterior cover), and a rear cover 4. The exterior cover may be composed of a front cover and a rear cover, two covers, a left cover, a right cover, two covers, or three or four or more covers.

  On the subject side (hereinafter referred to as the front surface) of the digital camera body 1, a collapsible optical system photographing lens barrel 5 for forming a subject image on an image sensor is mounted.

  The digital camera main body 1 is provided with a strobe light emission window 6 that emits light as necessary when the amount of light is insufficient at the time of shooting at the upper right in the middle of FIG.

  A liquid crystal display (LCD) 7 is disposed on the non-subject side (hereinafter referred to as the back side) of the digital camera body 1. The liquid crystal display device 7 is used for confirming a subject image to be captured and for reproducing and displaying the captured image.

  In FIG. 1 to FIG. 5, reference numeral 8 denotes a shutter button, which can be pressed in two stages. When the shutter button 8 is operated to the half-pressed state, a photographing semi-operation (photometry operation, distance measurement operation, etc.) is started.

  Further, when the shutter button 8 is operated to the fully-pressed state, the subject is photographed, and the image data of the subject image is recorded on a recording medium to be described later.

  In FIG. 3, reference numeral 9 denotes a lid member, which is attached to a storage chamber opening provided at the bottom of the digital camera body 1 so as to be opened and closed. In this storage room, a main battery (including a rechargeable battery in addition to a single-use primary battery) and a recording medium on which a photographed subject image is recorded are detachably stored.

  1 to 5, reference numeral 10 denotes a mode setting lever, which is slidably attached to the imaging apparatus main body 1. In the vicinity of the periphery of the mode setting lever 10, a plurality of marks (not shown) corresponding to various shooting modes are printed. The mode setting lever 10 is configured such that the shooting mode can be set according to the mark by matching the index written on the mode setting lever 10 with the mark index.

  In FIG. 3, reference numeral 11 denotes a cover member for protecting a power / signal input / output jack. When the cover member 11 for protecting the power / signal input / output jack is opened, the power / signal input / output jack appears, and various cables can be inserted into and removed from the input / output jack. 3 and 5, reference numeral 12 denotes a plurality of operation buttons used when instructing the function to the imaging apparatus.

  Although not shown, the digital camera body 1 includes two large substrates including a main substrate and an auxiliary substrate. For example, a recording medium slot including a card I / F, an imaging unit, an image processing unit, a system control unit, an LCD display unit, a serial I / F, a serial connection terminal, and the like are mounted on the main board. The auxiliary board is mounted with a power supply switching circuit, a DC / DC converter, an operation SW, a video I / F, a video connection terminal, an external power input terminal, and the like.

  Next, a fastening mechanism that is an exterior cover assembly structure for assembling the exterior cover to the internal components of the electronic device in the digital camera body 1 will be described.

  As shown in FIG. 1, in the exterior cover assembly structure of the digital camera body 1, the front cover 2 is fixed and the rear cover 4 is engaged and fastened to the center cover 3 assembled to the outer peripheral portion of the internal components. It is configured to be fixed by a mechanism.

  In the exterior cover assembly structure of the digital camera body 1, as shown in FIG. 4, the front cover 2 is assembled to the internal components to which the center cover 3 is assembled, and the screws 14 c and 14 d are tightened. As a result, the front cover 2 is fixed to the center cover 3. Then, the center cover 3 and the rear cover 4 are engaged with each other with a hook structure. In this exterior cover assembly structure, the screw 14 a is tightened from the screw hole 3 a of the center cover 3. At this time, the screw 14a fastens a screw hole formed on the side surface (second side) of the rear cover 4, so that the side surface of the rear cover 4 is fixed to the center cover 3 by the screw 14a.

  As shown in FIG. 5, the hook structure provided in the digital camera body 1 is formed by inserting locking claws 4c and 4d provided in the rear cover 4 into locking holes provided in the center cover 3 to which the front cover 2 is assembled. It is structured to be hooked.

  In this hook structure, a play is provided to allow the rear cover 4 to move toward the center cover 3 side so as to move away from each other with the locking claw hooked in the locking hole. However, due to a dimensional error between the locking claw and the locking hole, a gap is generated between the exterior covers, which not only deteriorates the appearance quality but also generates play. Moreover, it cannot endure the impact at the time of a fall, and once a latching claw falls out from a latching hole, it will also be considered that it will be unable to repair.

  In the digital camera body 1, a fastening mechanism is installed between the center cover 3 and the rear cover 4.

  This fastening mechanism is constituted by a rotary fastening mechanism as shown in FIGS. 1, 4, 5, 6 and 9, or a sliding fastening mechanism as shown in FIGS. 1, 4, 5, 6, and 9, the rotational fastening mechanism uses a shaft that is pivotally attached to a bent portion of a movable locking member 13 that is formed in a substantially bowl shape. Configure.

  The rotary movable locking member 13 has a hole 13b disposed in a portion bent at a right angle, and is disposed so as to be attached to a shaft 3b provided at the upper right corner of the internal component toward the front.

  The rotary movable locking member 13 forms a guide portion 13 c at the distal end portion of the first arm portion 23 extending in the lateral direction with respect to the digital camera body 1. The guide portion 13c projects a small rectangular protruding piece integrally protruding from the side of the distal end portion of the first arm portion 23 at a base end portion of the small rectangular protruding piece so as to protrude obliquely. It is configured.

  Further, the rotary movable locking member 13 is provided with a spring member 24 (urging member), which is an elastic member, in the middle portion of the first arm portion 23. The spring member 24 has a rectangular plate shape, and a base end portion of the spring member 24 is integrally attached to an intermediate portion of the first arm portion 23 by a torsion shaft portion 24a that can be elastically torsionally deformed. The spring member 24 is attached to an intermediate portion of the first arm portion 23 in an oblique state in which the torsion shaft portion 24a is gradually separated from the first arm portion 23 from a certain base end to a tip end portion. Thus, when the movable locking member 13 and the spring member 24 are integrally formed, the manufacturing cost can be reduced.

  The rotary movable locking member 13 includes a second arm portion 25 that extends in the vertical direction with respect to the digital camera main body 1 from a hole portion 13b that is disposed in a portion bent at a right angle. The first arm portion 23 and the second arm portion 25 are orthogonal to each other. At the distal end portion of the second arm portion 25, a projecting portion 25a in the shape of a small rectangular protrusion is provided that is bent at a right angle from the side of the distal end portion.

  The pivotable movable locking member 13 configured in this way is attached to a shaft 3b formed in an internal component by a hole 13b at a portion bent at a right angle so that the shaft 3b is pivoted. As shown in FIG. 6A, the rotation is possible between the position shown in FIG. 6A and the position shown in FIG.

  In the digital camera body 1, the tip end of a screw 14 a screwed into the screw hole 3 a of the center cover 3 is inserted into the protrusion 25 a of the second arm portion 25 of the movable locking member 13 that is pivotally attached to the internal component. Are configured to contact each other.

  In the digital camera body 1, the guide portion 13 c of the movable locking member 13 that is pivotally attached to the shaft 3 b of the internal component is configured to face the locking claw portion 4 b that protrudes to the inside of the rear cover 4. Yes. In addition, this latching claw part 4b is comprised so that the latching claw provided in the rear cover 4 may be combined. The rear cover locking claw portion 4b is configured as a small rectangular projecting claw member projecting from a predetermined position on the first side of the rear cover toward the inside, and is configured separately from the hook structure. May be.

  Further, in this digital camera body 1, the end portion of the spring member 24 of the movable locking member 13 that is pivotally attached to the internal components can abut on the abutting surface portion disposed on the inner peripheral surface side of the center cover 3. It is configured.

  In the digital camera body 1 configured as described above, the screw 14a is removed from the screw hole 3a of the center cover 3 in the released state of the rotary fastening mechanism related to the front cover 2 or the rear cover 4 shown in FIG. Screw in. Then, in this digital camera body 1, the screw 14a pushes the protrusion 25a of the movable locking member 13 to rotate the movable locking member 13 around the hole 13b, and the rotation type shown in FIG. Is set to the fastening state of the fastening mechanism.

  Further, in this rotating type fastening mechanism, the first arm portion 23 is longer than the second arm portion 25, so that the stroke (movement amount) of the second arm portion 25 caused by screwing of the screw 14a is inserted. ), The stroke (movement amount) of the first arm portion 23 that locks the locking claw portion 4b of the outer cover can be increased.

  In the fastening state of this rotating type fastening mechanism, the guide portion 13c moves outward to press the locking claw portion 4b projecting toward the inner side of the rear cover 4 toward the center cover 3 side. At this time, as shown in FIG. 6C, the inclined surface portion extending to the upper end portion of the guide portion 13c comes into sliding contact with the locking claw portion 4b being pressed toward the center cover 3 side. For this reason, the latching claw part 4b is guided by the slope part of the guide part 13c, and moves to the position shown with a dashed-dotted line from the position shown as a continuous line in FIG.6 (C).

  Then, in conjunction with the movement of the guide portion 13c to the outside, the rear cover 4 moves toward the center cover 3, and is brought into close contact with the rear cover 4 and the center cover 3 so that there is no gap between them. Become. Thereby, the digital camera body 1 can exhibit a high-quality appearance.

  Further, in this operation, the first arm portion 23 of the movable locking member 13 is elastically deformed and accumulated so that the spring member 24 is pushed down as the first arm portion 23 approaches the inner peripheral surface of the center cover 3. It becomes.

  Next, when shifting from the fastening state to the releasing state by this rotating type fastening mechanism, the screw 14 a is loosened and removed from the screw hole 3 a of the center cover 3. Then, the movable locking member 13 is rotated around the hole 13b by the urging force of elastic return of the spring member 24, and the released state shown in FIG. 6 (A) is changed from the fastening state shown in FIG. 6 (B). Therefore, the so-called disassembly workability can be improved.

  Further, the projecting portion 25a is pressed against the screw 14a by the biasing force of the spring member 24, so that the backlash of the portion of the screw 14a (backlash between the male screw and the female screw) is taken and the effect of preventing loosening is obtained.

  The spring member 24 having such an action may be constituted by a separate spring or the like, or may be constituted by an elastic member that is elastically deformed such as rubber or sponge.

  Further, in this digital camera body 1, the rotating type fastening mechanism provided corresponding to the front cover 2 functions in the same manner as described above.

  In the digital camera body 1, by using the exterior structure as described above, it is possible to suppress the variation in the gap size in the exterior cover matching portion and reduce the backlash regardless of the accuracy of each part. Further, in the digital camera body 1, a screw fastening position becomes a side surface portion, and a structure that is locked inside the upper surface of the digital camera body 1 by the action of the movable locking member 13 can be realized.

  Therefore, the fastening member such as a screw is not exposed on the outer surface of the upper surface of the digital camera body 1, and the user's hand is prevented from touching the screw on the upper surface of the digital camera body 1 to deteriorate the feeling of use. Can improve usability.

  Furthermore, in the digital camera main body 1, the screws exposed to the external appearance of the digital camera can be reduced with a simple configuration without increasing the number of parts by using the above-described fastening mechanism. As a result, the digital camera body 1 can have a high-grade appearance with a high-quality appearance and no looseness in the exterior cover.

  In other words, in this fastening mechanism, when the screw 14a is fastened, the movable locking member 13 moves and engages with the locking claw portion 4b of the exterior cover, thereby fastening the screw or the like exposed on the upper surface of the external appearance of the electronic device. Members can be reduced. Furthermore, in this fastening mechanism, the opening direction (gap) of the exterior cover can be suppressed.

  Therefore, when the digital camera body 1 is held, the side surface and the bottom surface that are considered to have a relatively small external exposure can be used as the fastening surface. For this reason, it is possible to reduce the number of fastening members such as screws on the upper surface where the appearance exposure is conspicuous, and it is possible to provide the digital camera body 1 having a high-quality appearance.

  Next, an exterior cover assembly structure of the digital camera body 1 constituted by a slide type fastening mechanism as shown in FIGS. 7 and 8 will be described.

  In this slide type fastening mechanism, the shaft pin 3b is slidably inserted into the slide hole 130b formed in the bent portion of the movable locking member 130 formed in a substantially bowl shape, and the movable locking member 130 is moved. It is configured by using a slidable support.

  The slide-type movable locking member 130 is provided with a slide hole 130b formed in a long oval shape along the longitudinal direction of the first arm portion 230 in a portion bent at a right angle. This slide-type movable locking member 130 is a shaft pin 3b that is slidably inserted into the slide hole 130b, and is disposed so as to be pivotally attached to the upper right corner of the internal component as viewed from the front.

  The sliding movable locking member 130 is attached to the internal component so as to move along a predetermined lateral direction (direction in which the first arm portion 230 extends). For this reason, when the movable locking member 130 cannot be guided only by the shaft pin 3b inserted through the slide hole 130b, it is supported so as to be slidable in a predetermined lateral direction with a guide member (not shown) with respect to the internal components. It may be configured as described above.

  As shown in FIGS. 8A and 8B, the sliding movable locking member 130 has a sliding guide at the end of the first arm 230 that extends in the lateral direction with respect to the digital camera body 1. A portion 130c is formed.

  The slide type guide portion 130c is configured to bend at a predetermined distance from the distal end portion of the movable locking member 130. The bending direction of the slide type guide portion 130 c is a direction in which the tip is directed to the outer surface side of the digital camera body 1.

  When the slide-type guide portion 130c configured as described above moves along the longitudinal direction of the first arm portion 230, the slide-type guide portion 130c is guided by the slope portion of the guide portion 130c to move the locking claw portion 4b. When the sliding guide part 130c moves toward the tip side, the locking claw part 4b guided by the slope part of the guide part 130c is shown by a one-dot chain line from the position shown by the solid line in FIG. Move to the indicated position. In this way, the slide type guide portion 130c guides the rear cover 4 (or the front cover 2) provided with the locking claw portion 4b so as to be attracted to the internal component side by the movement in the distal direction. It is configured as follows. That is, when the slide-type guide portion 130c moves in the distal direction and pushes the locking claw portion 4b toward the internal component side, the rear cover 4 (or the front cover 2) is in close contact with the internal component side and the gap Will be closed.

  In addition, when the slide type guide part 130c moves to the rear end side of the 1st arm part 230, it is comprised so that it may transfer to a releasing state from a fastening state with a slide type fastening mechanism.

  Next, the configuration of the operation mechanism for moving the slide type guide portion 130c in the slide type fastening mechanism provided in the digital camera body 1 from the released state to the fastened state will be described.

  The slide-type guide portion 130c includes a second arm portion 250 that extends in the vertical direction with respect to the digital camera body 1 from a portion bent at a right angle provided with the slide hole 130b. At the end of the second arm portion 250, there is provided a small rectangular protruding piece-shaped protrusion 250a that is bent at a right angle from the side.

  Further, in this digital camera body 1, the screw 14 a screwed into the screw hole 3 a of the center cover 3 is inserted into the protrusion 250 a of the second arm portion 250 of the movable locking member 13 pivotally attached to the internal component. It is comprised so that a front-end | tip part may contact | abut.

  In the structure for moving the slide-type movable locking member 130 in the slide-type fastening mechanism configured as described above to the fastening state, the screw 14a is screwed into the fastening state.

  That is, when shifting to the fastening state by the slide type fastening mechanism, the screw 14a is screwed from the screw hole 3a of the center cover 3 in the released state of the sliding type fastening mechanism related to the rear cover 4 shown in FIG. Insert. Then, the slide-type movable locking member 130 whose projection 25a is pushed by the screw 14a slides in the longitudinal direction of the second arm portion 250 by sliding the slide hole 130b with respect to the shaft pin 3b. Moving. By this operation, the slide-type guide portion 130c of the slide-type movable locking member 130 operates the locking claw portion 4b at the inclined surface portion, and the sliding-type fastening mechanism shown in FIG. set. Thereby, the front cover 2 or the rear cover 4 provided with this latching claw part 4b will be in the fastening state closely_contact | adhered to the internal component. With such a configuration, reliable engagement can be realized with a small space.

  Next, the configuration of the return operation mechanism for automatically moving the slide type guide portion 130c in the slide type fastening mechanism provided in the digital camera body 1 from the position in the fastening state to the position in the release state will be described.

  The return operation mechanism of the slide type fastening mechanism is configured to automatically move the slide type guide portion 130c to the released position by the biasing force of the elastic member.

  For this reason, in this return operation mechanism, the elastic member 16 (here, a compression coil spring is used) faces the tip of the sliding guide portion 130c at a position adjacent to the locking claw portion 4b in the internal component. Deploy.

  The elastic member 16 is installed with its base end fixed to the internal components, and is set in a state in which the end is in contact with the tip of the sliding guide portion 130c. The elastic member 16 arranged in this manner is compressed and stored when the slide type guide portion 130c moves to the fastening state.

  Further, when the sliding type fastening mechanism shifts from the fastening state to the release state, the operator pulls out the screw 14a. Then, in accordance with the operation of pulling out the screw 14a, the sliding movable locking member 130 is moved to the second arm portion 250 by the releasing action of the elastic member 16 biasing the pressing of the sliding guide portion 130c. It is automatically moved to the base end side.

  That is, the elastic member 16 performs a releasing operation of pressing the sliding guide portion 130c to push the movable locking member 130 back to the proximal end side where the slide hole 130b is provided. By the backward movement of the slide type guide portion 130c, the guide portion 130c comes into contact with the locking claw portion 4b on the tip side of the slope portion configured to be slidable to the locking claw portion 4b. The front end of the inclined surface of the slide type guide part 130c is located away from the internal components. Thus, the action of the slide-type guide portion 130c pressing the locking claw portion 4b toward the internal component side is released, and the slide-type fastening mechanism shifts to the release state.

  In the description of the slide type fastening mechanism in the digital camera body 1 described above, the elastic member 16 is constituted by a compression coil spring as an independent component. However, the elastic member 16 is movable and locked. You may comprise with the leaf | plate spring integrally formed with the member 130. FIG. Further, the screw 14a has been described as being configured as a screw that is exposed to the external appearance of the digital camera main body 1. However, the screw 14a is arranged in a semi-external portion hidden in the battery lid 9 shown in FIG. It may be arranged.

  The configuration, operation, and effect of the above-described slide type fastening mechanism are the same as those of the above-described rotational type fastening mechanism, and thus the description thereof is omitted. However, since the elastic member 16 is used in the slide type fastening mechanism, the spring member 24 used in the rotating type fastening mechanism is not provided.

  Furthermore, the exterior cover assembly structure of the electronic device of the present invention can be applied to exterior mounting structures of various electronic devices such as a video camera and a mobile phone in addition to the digital camera according to the above-described embodiment.

1 Digital camera body 1
2 Front cover 3 Center cover 4 Rear cover 4b Locking claw part 5 Shooting optical system lens barrel 6 Strobe light emission window 7 Liquid crystal display (LCD)
8 Shutter button 9 Battery cover member 10 Mode setting lever 11 Jack protection cover 12 Operation button 13 Movable locking member 13b Shaft pin 13c Guide portion 14a Screw 16 Elastic member 23 First arm portion 24 Spring member 25 Second arm Part 25a Projection

Claims (6)

An electronic device for attaching one exterior cover to the other exterior cover,
The one exterior cover includes a locking claw projecting inwardly on a first side of the one exterior cover, and the one exterior cover and the other on a second side orthogonal to the first side. Screw holes to fix the exterior cover with screws are formed,
The other exterior cover is formed with a protrusion that contacts the screw screwed into the screw hole, and a slope that contacts the locking claw and pulls the one exterior cover toward the other exterior cover. A locking member is movably attached,
When the screw is screwed into the screw hole, the locking member is moved so that the screw contacts the projection and the inclined surface contacts the locking claw. machine.   The electronic apparatus according to claim 1, further comprising a biasing member that biases the locking member in a direction in which the protrusion pushes the screw.   The locking member has a first arm portion on which the slope is formed and a second arm portion on which the protrusion is formed, and the other portion is a portion where the first and second arm portions intersect. The electronic device according to claim 1, wherein the electronic device can be rotated with respect to the exterior cover. The electronic device according to claim 3, wherein the locking member is attached so that a rotation center of the locking member is positioned at a corner of the other exterior cover.   The electronic apparatus according to claim 3, wherein a distance from the rotation center of the locking member to the slope is longer than a distance from the rotation center of the locking member to the protrusion.   The locking member has a first arm portion on which the slope is formed and a second arm portion on which the protrusion is formed, and the other portion is a portion where the first and second arm portions intersect. The electronic apparatus according to claim 1, wherein the electronic apparatus is slidable with respect to the exterior cover.

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