JP2018013702A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus that reduces a bound and a collision noise when a lid body is opened by an urging force of an urging member and brought into contact with an apparatus body.SOLUTION: An electronic apparatus comprises: a lid body 110 that is rotatably supported in an opening/closing direction through a pair of rotation shafts 110b and 113a coaxially arranged with respect to an apparatus body; and an urging member 114 that has a function of a torsional spring and compression spring, rotates the lid body 110 in the opening direction with an urging force of the torsional spring engaging respectively with the apparatus body 101 and the lid body 110, and urges the pair of rotation shafts 110b and 113a with an urging force of the compression spring in directions reverse to each other in the axial direction to be brought into contact with the apparatus body 101 in the axial direction.SELECTED DRAWING: Figure 11

Description

  The present invention relates to an electronic device including an imaging device such as a digital camera, and more particularly to a lid structure such as a battery lid of the electronic device.

  Some electronic devices such as a digital camera include a battery lid 10 that covers an opening of a battery housing (not shown) so as to be opened and closed as shown in FIG. 14 (Patent Document 1). The battery lid 10 is supported by a camera body (not shown) so as to be rotatable in the opening / closing direction via rotation shafts 10a and 11, and is locked by a lock mechanism (not shown) in a closed state. It is urged in the opening direction by an urging spring 12 or the like.

  Accordingly, by releasing the lock, the battery cover 10 is rotated in the opening direction by the urging force of the urging spring 12, and comes into contact with the exterior cover of the camera body and stops at a predetermined opening angle. Further, the battery cover 10 can be removed from the camera body to avoid interference with the external power supply device when a relatively large external power supply device such as a battery grip is attached to the battery housing portion.

JP 2011-055065 A

  In Patent Document 1, since the distance L1 is in the axial direction between the center of gravity G1 of the battery lid 10 and the midpoint A1 in the direction of the central axis K1 of the rotating shaft 11, the battery lid 10 is moved by the biasing force of the biasing spring 12. When the battery lid 10 is opened and brought into contact with the exterior cover, the posture of the battery lid 10 is not stable, and the bounce is difficult to converge. Further, when the battery cover 10 is opened and comes into contact with the exterior cover, a collision sound is generated, and particularly when the exterior cover is made of metal, the collision sound is increased.

  Then, an object of this invention is to provide the electronic device which can suppress the bounce and collision sound at the time of a cover body opening with the urging | biasing force of a biasing member, and contact | abutting to the apparatus main body.

  In order to achieve the above object, an electronic device according to the present invention includes a lid body that is rotatably supported in the opening / closing direction via a pair of rotation shafts that are coaxially arranged with respect to the device body, and a torsion spring. And a compression spring function, the lid body is rotated in the opening direction by the biasing force of the torsion spring that engages with the device main body and the lid body, respectively, and the pair of the springs is biased by the biasing force of the compression spring. And an urging member that urges the rotation shaft in directions opposite to the axial direction to abut against the apparatus main body in the axial direction.

  ADVANTAGE OF THE INVENTION According to this invention, the bounce and collision sound at the time of a cover body opening with the urging | biasing force of a biasing member, and contact | abutting to an apparatus main body can be suppressed.

(A) is the figure which looked at the digital single-lens reflex camera which is 1st Embodiment of the electronic device of this invention from the front side, (b) is the figure which looked at the digital single-lens reflex camera shown in (a) from the bottom side. is there. It is the perspective view which looked at the digital single-lens reflex camera of the state where the battery cover was opened from the bottom face side. It is the figure which looked at the battery cover from the back side. It is a disassembled perspective view of a battery cover. FIG. 2 is a cross-sectional view taken along the line U-U in FIG. It is a figure which shows the state of a battery cover at the time of removing a battery cover from a camera main body. It is a figure explaining operation | movement of the biasing spring at the time of removing a battery cover from a camera main body. It is the disassembled perspective view which looked at the attachment structure of the pressing member with respect to a bottom cover from the inner side of the camera body. It is the QQ sectional view taken on the line of FIG. (A) is the perspective view which looked at the state which removed the battery cover from the bottom face side of the camera main body, (b) is the QQ sectional view taken on the line QQ of the state which closed the battery cover. It is the RR sectional view taken on the line of FIG.1 (b). In the digital single-lens reflex camera which is 2nd Embodiment of the electronic device of this invention, it is the perspective view which looked at the state at the time of a battery lid rotating and stopping in the opening direction from the bottom face side of the camera body. In the digital single-lens reflex camera which is 3rd Embodiment of the electronic device of this invention, it is the figure which looked at the battery cover from the back side. It is a figure explaining the conventional battery cover.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1A is a diagram of a digital single-lens reflex camera (hereinafter referred to as a camera) as a first embodiment of the electronic apparatus of the present invention viewed from the front side (subject side), and FIG. It is the figure which looked at the camera shown to) from the bottom face side.

  As shown in FIG. 1, the camera of this embodiment has a replaceable lens unit 102 detachably mounted on the front side of the camera body 101. The subject light flux that has passed through the photographing optical system of the lens unit 102 forms an image on an image sensor (not shown) provided in the camera body 101 and is photoelectrically converted. On the left side of the lens unit 102 when viewed from the front side of the camera body 101, a grip portion 103 that is held by the user is provided.

  Inside the grip portion 103, a battery housing portion 103a (see FIG. 2) that opens to the bottom surface of the camera body 101 is formed. The opening of the battery housing portion 103a is covered with a battery lid 110 so as to be opened and closed. The camera body 101 corresponds to an example of an apparatus body of the present invention, and the battery cover 110 corresponds to an example of a cover body of the present invention.

  In the closed state shown in FIG. 1 (b), the battery lid 110 is locked by a lock mechanism (to be described later) while being biased in the opening direction by the biasing spring 114 (see FIG. 2), and the closed state is maintained. . At this time, the surface of the battery lid 110 forms an exterior on the bottom side of the camera body 101 together with the bottom cover 104. Then, by operating the locking release lever 111a to release the lock of the battery cover 110, the battery cover 110 is rotated in the opening direction by the urging force of the urging spring 114, and comes into contact with the bottom cover 104 to be in a predetermined state. Stop at the opening angle.

  FIG. 2 is a perspective view of the camera with the battery lid 110 opened as seen from the bottom side. As shown in FIG. 2, the grip portion 103 is formed to protrude to the front side of the camera body 101, and a battery storage portion 103 a into which the battery 105 is removably inserted is provided inside the grip portion 103. Yes. The battery 105 inserted into the battery housing portion 103a is locked by the locking piece 106 and is prevented from protruding, and the locking piece 106 is rotated to the front side of the camera body 101 to lock the battery 105. Is released, and the battery 105 can be inserted into and removed from the battery housing portion 103a.

  Next, the battery lid 110 will be described in detail with reference to FIGS. 3 to 8. 3 is a view of the battery lid 110 as seen from the back side, and FIG. 4 is an exploded perspective view of the battery lid 110 shown in FIG.

  3 and 4, the lid cover 110 a forms the outer shape of the battery lid 110. The locking claw 111 is formed with a spring shaft 111b. The locking claw 111 is attached to the lid cover 110a in a state where the locking spring 112 is inserted into the spring shaft 111b in the direction of arrow B in FIG. The locking spring 112 is configured by a compression spring, and is stored in a compressed state in the spring storage groove 110c of the lid cover 110a and biases the locking claw 111. The locking spring 112 uses a compression spring, but other biasing means may be used as long as the locking claw 111 is biased.

  The shaft member 113 is provided separately from the lid cover 110a, and has a first rotation shaft 113a that can move in the axial direction with respect to the lid cover 110a. The first rotation shaft 113a is the lid cover 110a. And the second rotating shaft 110b formed integrally with the second rotating shaft 110b. The first rotation shaft 113a and the second rotation shaft 110b constitute a pair of rotation shafts.

  Since the battery lid 110 has a shape corresponding to the shape of the grip portion 103 protruding to the front side of the camera body 101, as shown in FIG. 3, the center of gravity G2 of the battery lid 110 and the pair of rotating shafts 113a and 110b are provided. A distance L2 is provided in the axial direction between the center point A2 in the direction of the central axis K2. The central axis K2 is disposed in parallel with the optical axis of the lens unit 102.

  A spring shaft 113b is formed on the shaft member 113. The shaft member 113 is attached to the lid cover 110a in a state where the urging spring 114 is inserted into the spring shaft 113b in the direction of arrow C in FIG. Specifically, the fitting portion 113c of the shaft member 113 is fitted into the fitting hole 110d of the lid cover 110a, and the fixed end 114a of the biasing spring 114 inserted into the spring shaft 113b is connected to the lid cover 110a. It is stored in the storage groove 110e. The biasing spring 114 has a protruding portion 114b at the end opposite to the fixed end 114a, and the protruding portion 114b engages with a protruding portion 104c (see FIG. 10), which will be described later, of the bottom cover 104 so that the battery lid 110 is attached. Energize in the opening direction. The biasing spring 114 corresponds to an example of a biasing member of the present invention.

  The inner cover 115 is fastened to the lid cover 110a by three screws 116a to 116c. A hole 115a is formed in the inner cover 115, and the moving lever 113d of the shaft member 113 is inserted into the hole 115a.

  FIG. 5 is a cross-sectional view taken along the line U-U in FIG. As shown in FIG. 5, when the battery lid 110 is closed, the latching claw 111 provided on the latch release lever 111 a is latched by the latching portion 104 h of the bottom cover 104. Closed state is maintained. The locking claw 111 and the locking portion 104h constitute a locking mechanism. When unlocking the battery lid 110, the latch claw 111 and the latching portion 104h are unlocked by operating the latch release lever 111a in the direction of arrow E in FIG. Is rotated in the opening direction by the urging force of the urging spring 114.

  Next, with reference to FIGS. 6 to 8, attachment / detachment of the battery cover 110 to / from the camera body 101 will be described. FIG. 6 is a diagram illustrating a state of the battery cover 110 when the battery cover 110 is removed from the camera body 101. The battery cover 110 is removed when the battery cover 110 and the external power supply device interfere with each other when a relatively large external power supply device (not shown) such as a battery grip is attached to the battery housing portion 103a. To do.

  The urging spring 114 has a function of a compression spring and a torsion spring, and always urges the shaft member 113 in the direction of arrow C in FIG. Further, the shaft member 113 moves from the position shown in FIG. 3 to the position indicated by the two-dot chain line in FIG. 6 when the moving lever 113d is operated in the direction of arrow D in FIG. 6 against the urging force of the urging spring 114. That is, the first rotation shaft 113a does not protrude from the lid cover 110a. Thereby, the battery cover 110 can be removed from the camera body 101.

  Next, FIG. 7 is a diagram for explaining the operation of the urging spring 114 when the battery cover 110 is removed from the camera body 101. FIG. 7A is a view of the state of the battery lid 110 when the moving lever 113d is not operated, as viewed from the direction of arrow I in FIG. 3, and FIG. 7B is an enlarged view of a portion V in FIG. FIG. 7C is an enlarged view of a portion V in FIG. 7A when the movable lever 113d is operated in the direction of arrow D in FIG.

  As shown in FIG. 7B, the protruding portion 114b of the biasing spring 114 when the moving lever 113d is not operated is at the first position 110g that is the starting end of the cam portion 110f provided on the lid cover 110a. It is in contact. When the moving lever 113d is operated in the arrow D direction in FIG. 6 in this state, the protruding portion 114b of the urging spring 114 moves along the cam portion 110f of the lid cover 110a as shown in FIG. It abuts on the second position 110h, which is the end of the cam portion 110f. As a result, the engagement of the protrusion 114b of the biasing spring 114 with respect to the camera body 101 is released in a state where the first rotation shaft 113a does not protrude with respect to the cover cover 110a, and the battery cover 110 is removed from the camera body 101. It becomes possible.

  When the battery lid 110 is attached to the camera body 101, the second rotation shaft 110b is attached earlier than the first rotation shaft 113a. For this reason, as shown in FIG. 6, the second rotation shaft 110b is formed in a tapered shape with the shaft tip portion gradually reducing in diameter toward the tip so that the battery lid 110 can be easily attached to and detached from the camera body 101. ing.

  Next, with reference to FIGS. 8 and 9, a structure for holding the pair of rotating shafts 113a and 110b of the battery lid 110 will be described. FIG. 8 is an exploded perspective view of the structure for attaching the pressing member 107 to the bottom cover 104 as viewed from the inside of the camera body 101.

  As shown in FIG. 8, the pressing member 107 is fastened to the bottom cover 104 by two screws 108 a and 108 b from the inside of the camera body 101. At that time, the first pressing portion 107 a on the front side of the camera body 101 of the pressing member 107 is fitted into the first fitting hole 104 a of the bottom surface cover 104. Further, the second pressing portion 107 b on the back surface side of the camera body 101 of the pressing member 107 is fitted into the second fitting hole 104 b of the bottom surface cover 104.

  9 is a cross-sectional view taken along the line QQ in FIG. As shown in FIG. 9, the first rotation shaft 113 a (shown by a broken line) is held by the first pressing portion 107 a and the first fitting hole 104 a of the bottom cover 104. In addition, in FIG. 9, although not shown, the second rotation shaft 110b is also formed by the second pressing portion 107b and the second fitting hole 104b of the bottom cover 104 in the same manner as the first rotation shaft 113a. Is retained. Thereby, the battery cover 110 is supported by the bottom cover 104 of the camera body 101 so as to be rotatable in the opening / closing direction via the pair of rotation shafts 113a and 110b.

  Next, an operation in the opening direction of the battery lid 110 will be described with reference to FIGS. 10 and 11. 10A is a perspective view of the camera body 101 with the battery lid 110 removed as viewed from the bottom side, and FIG. 10B is a cross-sectional view taken along the line Q-Q of FIG. 2 with the battery lid 110 closed. It is.

  As shown in FIG. 10, the bottom cover 104 is provided with a protruding portion 104 c. The protrusion 104 c comes into contact with the protrusion 114 b of the urging spring 114 when the battery lid 110 is attached to the camera body 101. Thereby, the urging force of the urging spring 114 acts in the opening direction of the battery lid 110. Then, the battery lid 110 is rotated in the opening direction by the urging force of the urging spring 114 until it abuts on the first abutting portion 104d and the second abutting portion 104e provided on the bottom surface cover 104, and is predetermined. Stop at the opening angle.

  FIG. 11 is a cross-sectional view taken along the line RR in FIG. As shown in FIG. 11, the urging spring 114 urges the first rotation shaft 113a in the direction (F direction) of the first side surface 104f of the bottom cover 104, and the second rotation shaft 110b as F. The direction is biased in the direction (H direction) of the second side surface 104g of the bottom cover 104, which is the direction opposite to the direction. As a result, the first rotation shaft 113a is pressed against the first side surface 104f in the axial direction, and the second rotation shaft 110b is pressed against the second side surface 104g in the axial direction. As a result, when the battery lid 110 rotates in the opening direction, it is between the first rotation shaft 113a and the first side surface 104f, and between the second rotation shaft 110b and the second side surface 104g. Each generates friction.

  Here, the urging force for rotating the battery cover 110 of the urging spring 114 in the opening direction is between the first rotation shaft 113a and the first side surface 104f, and between the second rotation shaft 110b and the second rotation shaft. It is set to a value larger than the sum of the frictional forces generated between the side surfaces 104g of each other. For this reason, when the battery lid 110 is unlocked in the closed state, the battery lid 110 rotates in the opening direction by the urging force of the urging spring 114, but the rotation speed in the opening direction is reduced by the frictional force described above. As a result, it is possible to suppress bounce and collision noise when the battery lid 110 stops by coming into contact with the first contact portion 104d and the second contact portion 104e of the bottom cover 104.

  As described above, in the present embodiment, the battery lid 110 is rotated in the opening direction by the biasing force of the biasing spring 114 and is moved to the first contact portion 104d and the second contact portion 104e of the bottom cover 104. It is possible to suppress bounce and collision noise when stopping by contact.

(Second Embodiment)
Next, a camera which is a second embodiment of the electronic apparatus of the present invention will be described with reference to FIG. In the present embodiment, only the differences will be described with respect to the same parts as those in the first embodiment with reference to the drawings and symbols. FIG. 12 is a perspective view of the state when the battery lid 110 rotates and stops in the opening direction as viewed from the bottom side of the camera body 101.

  In the present embodiment, the heights of the first contact portion 104d and the second contact portion 104e of the bottom cover 104 with which the battery lid 110 abuts are different. Specifically, for example, the second contact portion 104e is made higher than the first contact portion 104d of the bottom cover 104.

  For this reason, when the battery cover 110 is opened, the battery cover 110 contacts the second contact part 104e and then contacts the first contact part 104d. At this time, as shown in FIG. 11, the contact area in the axial direction between the pair of rotating shafts 113a and 110b of the battery lid 110 and the bottom cover 104 is set to be the first rotating shaft than the second rotating shaft 110b. Since 113a is larger, the first rotating shaft 113a has a higher frictional resistance at the shaft end. Further, as shown in FIG. 3, since the first rotation shaft 113a is disposed at a position closer to the center of gravity G2 than the second rotation shaft 110b, when the battery lid 110 is opened, the second rotation shaft 113a is disposed. The battery cover 110 is tilted in the rotation direction M with the moving shaft 110b as a fulcrum.

  As a result, the urging force in the axial direction by the urging spring 114 having a function of a compression spring and a torsion spring acts strongly on the shaft end portion of the first rotating shaft 113a, and the frictional force is further increased. Therefore, it is possible to more effectively suppress the bounce and the collision sound when the battery lid 110 is opened. Other configurations and operational effects are the same as those in the first embodiment.

(Third embodiment)
Next, a camera which is a third embodiment of the electronic apparatus of the invention will be described with reference to FIG. In the present embodiment, the same or different parts as those in the first embodiment will be described mainly with reference to the drawings and reference numerals.

  In this embodiment, as shown in FIG. 13, with respect to the first embodiment (see FIG. 3), the first rotation shaft 113a of the shaft member 113 constituting the pair of rotation shafts 110b and 113a and The arrangement of the lid cover 110a with the second rotation shaft 110b is reversed. Also in this case, as in the first embodiment, there is a distance L3 in the axial direction between the center of gravity G3 of the battery lid 110 and the midpoint A3 in the direction of the central axis K3 of the pair of rotating shafts 110b and 113a. doing. Further, the first rotation shaft 113a is formed in a tapered shape in which the shaft tip portion gradually decreases in diameter toward the tip so that the battery lid 110 can be easily attached to and detached from the camera body 101.

  In the present embodiment, the second rotating shaft 110b on the side close to the center of gravity G3 of the battery lid 110 is formed integrally with the lid cover 110a and has no backlash, so that the second rotating shaft 110b is formed at the tip of the second rotating shaft 110b. The generated frictional force can be used more efficiently. Thereby, it is possible to effectively suppress the bounce and the collision sound when the battery lid 110 is opened. Other configurations and operational effects are the same as those in the first embodiment.

  The configuration of the present invention is not limited to those exemplified in the above embodiments, and the material, shape, dimensions, form, number, arrangement location, and the like are appropriately changed without departing from the gist of the present invention. Is possible.

101 Camera body 104 Bottom cover 107 Holding member 110 Battery lid 110b Second rotating shaft 113 Shaft member 113a First rotating shaft 114 Biasing spring

Claims (10)

A lid body that is rotatably supported in the opening and closing direction via a pair of rotation shafts that are coaxially arranged with respect to the device main body,
The lid body has a function of a torsion spring and a compression spring, and the lid body is rotated in the opening direction by an urging force of the torsion spring engaged with the device main body and the lid body, and the urging force of the compression spring An electronic device comprising: a biasing member that biases a pair of rotating shafts in opposite directions in the axial direction to abut against the device main body in the axial direction. The device body is provided with a grip portion that is held by the user so as to protrude to the front side,
The electronic device according to claim 1, wherein the lid covers an opening of a battery housing portion formed inside the grip portion so as to be openable and closable.   The electronic device according to claim 2, wherein a midpoint in the axial direction of the pair of rotation shafts and a center of gravity of the lid body are arranged apart from each other in the axial direction.   The apparatus main body includes a first contact portion and a second contact portion with which the lid body comes into contact when the lid body is opened, and the first contact portion is formed on the lid body. The electronic apparatus according to claim 3, wherein the electronic apparatus is disposed on a side closer to the center of gravity and has a height lower than that of the second contact portion.   5. The electron according to claim 3, wherein, of the pair of rotation shafts, the rotation shaft closer to the center of gravity of the lid body has a larger area in contact with the device main body in the axial direction. machine.   Of the pair of pivot shafts, a pivot shaft closer to the center of gravity of the lid body is formed integrally with the lid body, and a pivot shaft farther from the center of gravity of the lid body is formed with the lid body. 6. The electronic apparatus according to claim 3, wherein the electronic apparatus is provided separately and is movable in an axial direction with respect to the lid.   Of the pair of pivot shafts, a pivot shaft closer to the center of gravity of the lid body is provided separately from the lid body and is movable in the axial direction with respect to the lid body. 6. The electronic device according to claim 3, wherein a rotation shaft on a side farther from the center of gravity is integrally formed with the lid body. The torsion spring has a protrusion that engages with the device body,
The projecting portion is provided so as to be movable from the start end to the end of the cam portion provided in the lid when the pivot shaft movable in the axial direction is moved in the axial direction.
The electronic device according to claim 6 or 7, wherein when the protruding portion moves to the terminal end of the cam portion, the engagement of the protruding portion with the device main body is released.   A lens unit is mounted on the device main body, and an imaging element that forms an image of a subject light flux that has passed through the photographing optical system of the lens unit and performs photoelectric conversion is provided inside the device main body. The electronic device according to any one of claims 1 to 8.   The electronic apparatus according to claim 9, wherein a central axis of the pair of rotation shafts is disposed in parallel with an optical axis of the lens unit.

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