JP2020188492A - Electronic apparatus - Google Patents

Abstract

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

Description

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

As shown in FIG. 14, some electronic devices such as digital cameras are provided with a battery lid 10 that can open and close an opening of a battery storage portion (not shown) (Patent Document 1). The battery lid 10 is rotatably supported in the opening / closing direction with respect to a camera body (not shown) via rotation shafts 10a and 11, and is locked by a lock mechanism (not shown) in the closed state. It is urged in the opening direction by an urging spring 12 or the like.

Therefore, when the lock is released, the battery lid 10 rotates in the opening direction by the urging force of the urging spring 12, comes into contact with the exterior cover of the camera body, and stops at a predetermined opening angle. Further, the battery lid 10 can be removed from the camera body in order 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 storage portion.

Japanese Unexamined Patent Publication No. 2011-055065

In Patent Document 1, since the battery lid 10 has a distance L1 in the axial direction between the center of gravity G1 of the battery lid 10 and the midpoint A1 in the central axis K1 direction of the rotating shaft 11, the battery lid 10 is urged by the urging spring 12. When the battery lid 10 is opened and comes 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 lid 10 is opened and comes into contact with the exterior cover, a collision noise is generated, and particularly when the exterior cover is made of metal, the collision noise becomes loud.

Therefore, an object of the present invention is to provide an electronic device capable of suppressing bounce and collision noise when the lid is opened by the urging force of the urging member and comes into contact with the main body of the device.

In order to achieve the above object, the electronic device of the present invention has a lid and a torsion spring that are rotatably supported in the opening / closing direction via a pair of rotating shafts coaxially arranged with each other. The lid body is rotated in the opening direction by the urging force of the torsion spring that engages with the device main body and the lid body, respectively, and the pair of the lid body is rotated by the urging force of the compression spring. An electronic device including an urging member that urges a rotating shaft in opposite directions in the axial direction to bring the rotating shaft into axial contact with the main body of the device, and each of the pair of rotating shafts is The urging member urges the pair of rotating shafts in the axial direction so that they are in contact with the main body of the device.

According to the present invention, it is possible to suppress bounce and collision noise when the lid is opened by the urging force of the urging member and comes into contact with the main body of the device.

(A) is a view of the digital single-lens reflex camera according to the first embodiment of the electronic device of the present invention from the front side, and (b) is a view of the digital single-lens reflex camera shown in (a) from the bottom side. is there. It is a perspective view of the digital single-lens reflex camera with the battery lid open as seen from the bottom side. It is the figure which looked at the battery lid from the back side. It is an exploded perspective view of a battery lid. FIG. 1B is a sectional view taken along line UU of FIG. 1B. It is a figure which shows the state of the battery lid at the time of removing the battery lid from a camera body. It is a figure explaining the operation of the urging spring when removing a battery lid from a camera body. It is an exploded perspective view which looked at the attachment structure of the holding member with respect to the bottom cover from the inside side of a camera body. FIG. 2 is a cross-sectional view taken along line QQ of FIG. (A) is a perspective view of the state where the battery lid is removed from the bottom surface side of the camera body, and (b) is a sectional view taken along line QQ of FIG. 2 with the battery lid closed. FIG. 1B is a cross-sectional view taken along the line RR of FIG. 1 (b). FIG. 5 is a perspective view of a digital single-lens reflex camera according to a second embodiment of the electronic device of the present invention, in which the battery lid rotates in the opening direction and stops, as viewed from the bottom surface side of the camera body. It is a figure which looked at the battery lid from the back side in the digital single-lens reflex camera which is the 3rd Embodiment of the electronic device of this invention. It is a figure explaining the conventional battery lid.

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

(First Embodiment)
FIG. 1A is a view of a digital single-lens reflex camera (hereinafter referred to as a camera) according to a first embodiment of the electronic device of the present invention from the front side (subject side), and FIG. 1B is FIG. 1A. ) Is a view of the camera shown from the bottom side.

As shown in FIG. 1, the camera of the present embodiment has an interchangeable lens unit 102 detachably attached to the front side of the camera body 101. The subject luminous flux that has passed through the photographing optical system of the lens unit 102 is formed into an image on an image pickup element (not shown) provided in the camera body 101 and photoelectrically converted. A grip portion 103 gripped by the user is provided on the left side of the lens unit 102 when viewed from the front side of the camera body 101.

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

In the closed state shown in FIG. 1 (b), the battery lid 110 is locked by a locking mechanism described later in a state of being urged in the opening direction by the urging spring 114 (see FIG. 2) to maintain the closed state. .. At this time, the surface of the battery lid 110 forms an exterior on the bottom surface side of the camera body 101 together with the bottom surface cover 104. Then, by operating the unlocking lever 111a to unlock the battery lid 110, the battery lid 110 rotates in the opening direction by the urging force of the urging spring 114, abuts on the bottom cover 104, and a predetermined value. Stop at the opening angle.

FIG. 2 is a perspective view of the camera with the battery lid 110 opened as viewed from the bottom surface side. As shown in FIG. 2, the grip portion 103 is formed so as to project toward the front side of the camera body 101, and a battery storage portion 103a into which the battery 105 is removably inserted is provided inside the grip portion 103. There is. The battery 105 inserted in the battery housing 103a is locked by the locking piece 106 to prevent popping out, and the locking piece 106 is rotated toward the front side of the camera body 101 to lock the battery 105. Is released, and the battery 105 can be inserted and removed from the battery housing 103a.

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

In FIGS. 3 and 4, the lid cover 110a forms the outer shape of the battery lid 110. A spring shaft 111b is formed on the locking claw 111. The locking claw 111 is attached to the lid cover 110a with the locking spring 112 inserted into the spring shaft 111b in the direction of arrow B in FIG. The locking spring 112 is composed of a compression spring and is stored in the spring storage groove 110c of the lid cover 110a in a compressed state to urge the locking claw 111. Although the locking spring 112 uses a compression spring, other urging means may be used as long as it urges the locking claw 111.

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

Since the battery lid 110 has a shape corresponding to the shape of the grip portion 103 protruding toward 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 A distance L2 is provided in the axial direction between the midpoint A2 in the central axis K2 direction. The central axis K2 is arranged parallel to 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 with the urging spring 114 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 urging spring 114 inserted into the spring shaft 113b is the lid cover 110a. It is stored in the storage groove 110e. The urging spring 114 has a protruding portion 114b at an end opposite to the fixed end 114a, and the protruding portion 114b engages with a protruding portion 104c (see FIG. 10) described later of the bottom cover 104 to engage the battery lid 110. Bounce in the opening direction. The urging spring 114 corresponds to an example of the urging 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 a moving lever 113d of the shaft member 113 is inserted and arranged in the hole 115a.

FIG. 5 is a sectional view taken along line UU of FIG. 1 (b). As shown in FIG. 5, when the battery lid 110 is closed, the locking claw 111 provided on the locking release lever 111a is locked to the locking portion 104h of the bottom cover 104, so that the battery lid 110 The closed state is maintained. The locking mechanism is composed of the locking claw 111 and the locking portion 104h. When unlocking the battery lid 110, by operating the unlocking lever 111a in the direction of arrow E in FIG. 5, the locking claw 111 and the locking portion 104h are unlocked, and the battery lid 110 is released. Rotates in the opening direction due to the urging force of the urging spring 114.

Next, attachment / detachment of the battery lid 110 to / from the camera body 101 will be described with reference to FIGS. 6 to 8. FIG. 6 is a diagram showing a state of the battery lid 110 when the battery lid 110 is removed from the camera body 101. The battery lid 110 should be removed to prevent the battery lid 110 from interfering with the external power supply device when a relatively large external power supply device (not shown) such as a battery grip is attached to the battery storage portion 103a. Do it for.

The urging spring 114 has the functions of a compression spring and a torsion spring, and always urges the shaft member 113 in the direction of arrow C in FIG. Further, when the moving lever 113d is operated in the direction of the arrow D in FIG. 6 against the urging force of the urging spring 114, the shaft member 113 moves from the position in FIG. 3 to the position shown by the alternate long and short dash line in FIG. That is, the first rotation shaft 113a does not protrude from the lid cover 110a. This makes it possible to remove the battery lid 110 from the camera body 101.

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

As shown in FIG. 7B, the protruding portion 114b of the urging spring 114 when the moving lever 113d is not operated is located at the first position 110g, which 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 direction of arrow D 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. 7C. It comes into contact with the second position 110h, which is the end of the cam portion 110f. As a result, the engagement of the protruding portion 114b of the urging spring 114 with the camera body 101 is released in a state where the first rotating shaft 113a does not protrude from the lid cover 110a, and the battery lid 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 rotating shaft 110b is attached before the first rotating shaft 113a. Therefore, as shown in FIG. 6, the second rotating shaft 110b is formed in a tapered shape in which the tip portion of the shaft gradually reduces 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, the holding structure of the pair of rotating shafts 113a and 110b of the battery lid 110 will be described with reference to FIGS. 8 and 9. FIG. 8 is an exploded perspective view of the mounting structure of the pressing member 107 with respect 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 108a and 108b from the inner side of the camera body 101. At that time, the first pressing portion 107a on the front side of the camera body 101 of the pressing member 107 is fitted into the first fitting hole 104a of the bottom cover 104. Further, the second pressing portion 107b on the back surface side of the camera body 101 of the pressing member 107 is fitted into the second fitting hole 104b of the bottom cover 104.

FIG. 9 is a cross-sectional view taken along line QQ of FIG. As shown in FIG. 9, the first rotation shaft 113a (indicated by a broken line) is held by the first pressing portion 107a and the first fitting hole 104a of the bottom cover 104. Further, although not shown in FIG. 9, the second rotating shaft 110b is also formed by the second holding portion 107b and the second fitting hole 104b of the bottom cover 104, similarly to the first rotating shaft 113a. It is held. As a result, the battery lid 110 is rotatably supported in the opening / closing direction with respect to the bottom cover 104 of the camera body 101 via the pair of rotation shafts 113a and 110b.

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

As shown in FIG. 10, the bottom cover 104 is provided with a protruding portion 104c. The protrusion 104c comes into contact with the protrusion 114b of the urging spring 114 when the battery lid 110 is attached to the camera body 101. As a result, 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 comes into contact with the first contact portion 104d and the second contact portion 104e provided on the bottom cover 104, and is predetermined. Stop at the opening angle of.

FIG. 11 is a cross-sectional view taken along the line RR of FIG. 1 (b). As shown in FIG. 11, the urging spring 114 urges the first rotating shaft 113a in the direction (F direction) of the first side surface 104f of the bottom cover 104, and forces the second rotating shaft 110b to F. The bottom cover 104 is urged in the direction (H direction) of the second side surface 104 g, which is the direction opposite to the direction. As a result, the first rotating shaft 113a is axially pressed against the first side surface 104f, and the second rotating shaft 110b is axially pressed against the second side surface 104g. As a result, when the battery lid 110 rotates in the opening direction, 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. Friction force is generated in each case.

Here, the urging force for rotating the battery lid 110 of the urging spring 114 in the opening direction is between the first rotating shaft 113a and the first side surface 104f, and the second rotating shaft 110b and the second. The value is set to be larger than the total frictional force generated between the side surface 104 g and Therefore, when the lock is released in the closed state, the battery lid 110 rotates in the opening direction due to 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 comes into contact with the first contact portion 104d and the second contact portion 104e of the bottom cover 104 and stops.

As described above, in the present embodiment, the battery lid 110 is rotated in the opening direction by the urging force of the urging spring 114 to form 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 the vehicle contacts and stops.

(Second Embodiment)
Next, a camera according to a second embodiment of the electronic device of the present invention will be described with reference to FIG. In this embodiment, only the differences will be described with respect to the parts overlapping with the first embodiment, while diverting the figures and reference numerals. FIG. 12 is a perspective view of the state when the battery lid 110 rotates in the opening direction and stops, as viewed from the bottom surface 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 contacts are different. Specifically, for example, the second contact portion 104e is made higher than the first contact portion 104d of the bottom cover 104.

Therefore, when the battery lid 110 is opened, the battery lid 110 comes into contact with the second contact portion 104e and then with the first contact portion 104d. At this time, as shown in FIG. 11, the axial contact area between the pair of rotating shafts 113a and 110b of the battery lid 110 and the bottom cover 104 is larger than that of the second rotating shaft 110b. Since the 113a is larger, the frictional resistance at the shaft end of the first rotating shaft 113a is larger. Further, as shown in FIG. 3, since the first rotation shaft 113a is arranged 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 is performed. The battery lid 110 tilts in the rotation direction M with the moving shaft 110b as a fulcrum.

As a result, the axial urging force of the urging spring 114 having the functions of the compression spring and the 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 bounce and collision noise when the battery lid 110 is opened. Other configurations and effects are the same as those in the first embodiment.

(Third Embodiment)
Next, with reference to FIG. 13, a camera according to a third embodiment of the electronic device of the present invention will be described. In this embodiment, with respect to the portion overlapping or corresponding to the first embodiment, the differences will be mainly described while diverting the figures and the reference numerals.

In this embodiment, as shown in FIG. 13, with respect to the first embodiment (see FIG. 3), with respect to the first rotating shaft 113a of the shaft member 113 constituting the pair of rotating shafts 110b and 113a. The arrangement of the lid cover 110a with the second rotation shaft 110b is reversed. Also in this case, similarly to 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 central axis K3 direction of the pair of rotating shafts 110b and 113a. doing. Further, the first rotating shaft 113a is formed in a tapered shape in which the tip portion of the shaft gradually reduces 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 fitting play, so that the second rotating shaft 110b is located at the tip of the second rotating shaft 110b. The generated frictional force can be used more efficiently. This makes it possible to effectively suppress bouncing and collision noise when the battery lid 110 is opened. Other configurations and effects are the same as those in the first embodiment.

The configuration of the present invention is not limited to those exemplified in each of the above embodiments, and the material, shape, dimensions, form, number, arrangement location, etc. are appropriately changed as long as the gist of the present invention is not deviated. It 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)

It has a lid that is rotatably supported in the opening / closing direction via a pair of rotating shafts that are coaxially arranged with each other, and has the functions of a torsion spring and a compression spring. The lid is rotated in the opening direction by the urging force of the torsion spring that engages with the body, and the pair of rotating shafts are urged in opposite directions in the axial direction by the urging force of the compression spring. An electronic device including an urging member that abuts the device body in the axial direction.
An electronic device characterized in that each of the pair of rotating shafts is in contact with the main body of the device by being urged by the urging member in the axial direction of the pair of rotating shafts. The device body is provided with a grip portion to be gripped by the user so as to project toward the front side.
The electronic device according to claim 1, wherein the lid body covers the opening of the battery storage portion formed inside the grip portion so as to be openable and closable. The electronic device according to claim 2, wherein the midpoint of the pair of rotating shafts in the axial direction and the center of gravity of the lid are arranged apart from each other in the axial direction. The device main body has 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 of the lid body. The electronic device according to claim 3, wherein the electronic device is arranged on a side closer to the center of gravity and its height is lower than that of the second contact portion. The electron according to claim 3 or 4, wherein of the pair of rotating shafts, the rotating shaft on the side closer to the center of gravity of the lid has a larger area in contact with the device body in the axial direction. machine. Of the pair of rotation shafts, the rotation shaft on the side closer to the center of gravity of the lid is formed integrally with the lid, and the rotation shaft on the side far from the center of gravity of the lid is the lid. The electronic device according to any one of claims 3 to 5, wherein the electronic device is provided separately and can move in the axial direction with respect to the lid. Of the pair of rotation shafts, the rotation shaft on the side closer to the center of gravity of the lid body is provided separately from the lid body and can move in the axial direction with respect to the lid body, and the lid body The electronic device according to any one of claims 3 to 5, wherein the rotating shaft on the side far from the center of gravity of the lid is integrally formed with the lid body. The torsion spring has a protrusion that engages with the device body.
The protrusion is provided so as to be movable from the start end to the end of the cam portion provided on the lid when the rotation 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 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 body, and an image pickup 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 body. The electronic device according to any one of claims 1 to 8. The electronic device according to claim 9, wherein the central axis of the pair of rotation axes is arranged in parallel with the optical axis of the lens unit.