JP2017198767A - Imaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery lid holding structure of an imaging device and the imaging device that can prevent a damage of a rotary shaft of a battery lid when an impact due to dropping and the like is applied.SOLUTION: An imaging device comprises: a grip part that protrudes on a front side from an imaging device main body; s battery housing part that is formed inside the grip part, and houses a battery for supplying a power source to an imaging device; a battery lid that is freely openably/closably disposed in the battery housing part; and a rotary shaft holding member that holds a part of a rotary shaft of the battery lid, in which the rotary shaft of the battery lid is disposed almost parallel with respect to a shooting optical axis of an imaging lens. A lateral surface on a shooting optical axis side of a first rotary shaft disposed on the front side of the imaging device of the battery lid is configured to be elastically held by the rotary shaft holding member.SELECTED DRAWING: Figure 10

Description

  The present invention relates to an imaging apparatus capable of storing a battery for supplying power in a housing, and more particularly to a battery lid holding structure for the imaging apparatus.

  2. Description of the Related Art Conventionally, there is an image pickup apparatus having a lid that can be opened and closed by a user, such as a battery lid for closing an opening of a battery housing portion provided inside a housing. Among imaging devices having a lid that can be opened and closed with respect to a housing, there is an electronic device having a structure in which the lid can be removed from the housing by a special operation in addition to a normal opening and closing operation.

  For example, in an imaging device that can insert an external power supply larger than a normally used battery into the battery compartment, when the battery cover is opened and the external power supply is attached to the battery compartment, a part of the external power supply Protrudes into the battery compartment. Therefore, there arises a problem that the battery lid and the external power supply device interfere with each other. In order to avoid this interference, there has been known an imaging device having a battery lid holding structure in which the battery lid can be removed from the casing by an operation of removing the battery lid when the external power supply device is attached to the battery housing portion.

  As an electronic apparatus having a lid that can be removed from the casing as described above, the following has been proposed (see Patent Document 1). In the electronic device described in Patent Document 1, an opening into which a lid is fitted is provided in the housing, and at least a pair of holes are formed in the inner wall of the opening. Projections that can be respectively engaged with the pair of holes in the inner wall of the opening are formed on the side surface of the lid. The lid is locked to the casing by engaging the hole in the inner wall of the opening of the casing with the protrusion of the lid.

JP 2011-055065 A

  A portable device such as a camera may be accidentally dropped because it is carried by the photographer. However, in the imaging device having the removable lid as shown in the above-described conventional example, the shaft of the lid may be damaged due to the impact of dropping. Hereinafter, description will be given with reference to FIG. FIG. 11 is a diagram illustrating a battery lid of the imaging device according to the conventional example and a holding configuration thereof. FIG. 11A is a bottom view of the imaging device 100 according to the conventional example, and FIG. FIG. 11C is a partial cross-sectional view taken along the line SS of FIG. 11A.

  In FIG. 11, 130 is a rotation axis of the battery lid, 400 is a bottom cover as an exterior cover, 700 is a rotation axis pressing member, and L is the rotation axis center of the battery lid. As shown in FIG. 11C, the rotation shaft 130 of the battery lid 110 is housed and held in a hole formed by the bottom cover 400 and the rotation shaft pressing member 700. Therefore, if a shearing force orthogonal to the rotation axis center L is applied to the rotation shaft 130 due to a drop impact or the like, the rotation shaft 130 may be damaged. Further, in order to prevent the rotation shaft from being damaged, it is possible to form the rotation shaft from metal or the like, but the cost increases.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an imaging device that can prevent damage to a rotating shaft of a battery lid even when an impact is applied due to dropping or the like.

In order to achieve the above object, an imaging apparatus according to the present invention includes:
A grip part (3) protruding from the main body of the image pickup apparatus (1) to the front side and a battery (5) formed inside the grip part (3) for supplying power to the image pickup apparatus (1) are accommodated. A battery housing part (3a), an openable / closable battery cover (10) disposed in the battery housing part (3a), and a rotation shaft presser holding a part of the rotation shaft of the battery cover (10) In the imaging device (1), in which the member (7) and the rotation axis (K) of the battery lid (10) are arranged substantially parallel to the imaging optical axis (Z) of the imaging lens (2), the battery The side surface on the photographing optical axis (Z) side of the first rotation shaft (13a) disposed on the front surface side of the imaging device (1) of the lid (10) is supported by the rotation shaft pressing member (7). It is characterized by being held elastically.

  According to the imaging apparatus according to the present invention, it is possible to provide for avoiding the breakage of the rotating shaft of the battery lid when a large impact is applied from the outside due to dropping or the like.

(A) is a front view of the imaging device according to the present embodiment, (b) is a bottom view of the imaging device according to the present embodiment. (A) is a front view of the imaging device in a state where the battery lid is opened, and (b) is a bottom view of the imaging device in a state where the battery lid is opened. (A) is an external view of the battery cover, (b) is an internal view of the battery cover. (A) is an internal view of the battery lid with the battery lid cover removed, and (b) is an exploded perspective view of the battery lid. (A) is an external view of the battery lid in a state where the battery lid is unlocked from the imaging device, and (b) is an internal view of the battery lid in a state where the battery lid is unlocked from the imaging device. Explanatory drawing of operation of rotating shaft member An exploded perspective view showing a structure for attaching the shaft pressing member to the bottom cover. (A) is a bottom view of the imaging device with the battery cover removed, (b) is a cross-sectional view taken along the line Q-Q shown in FIG. 8 (a), and (c) is an RR shown in FIG. 8 (a). Sectional view at line (A) is a diagram showing a state in which the imaging device is dropped from the tip of the grip, (b) is a diagram schematically showing a load applied to the battery lid when the imaging device is dropped in the posture of FIG. 9 (a). (A) is sectional drawing in the AA line shown to Fig.1 (a), (b) is the 1st rotating shaft holding | suppressing part at the time of dropping an imaging device from the front-end | tip of a grip, and a 1st rotating shaft Sectional drawing in the AA line of Fig.1 (a) which shows a position change (A) is a bottom view of an imaging device according to a conventional example, (b) is an external view of a battery cover, and (c) is a cross-sectional view taken along line SS shown in FIG. 11 (a).

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[Example 1]
1A and 1B are views showing an external appearance of a single-lens reflex digital camera (hereinafter referred to as a camera) as an example of an imaging apparatus according to an embodiment of the present invention. FIG. 1A is a front view, and FIG. It is.

  An imaging apparatus according to an embodiment of the present invention is a camera 1 that uses a battery as a power source, for example. Reference numeral 2 denotes an interchangeable lens that can be removed from the camera 1, and 3 denotes a grip for the photographer to hold the camera by hand. Reference numeral 4 denotes a bottom cover as an exterior cover, and 10 denotes a battery cover attached to the camera 1 so as to be rotatable and openable at a rotation axis center K. FIG. 1 shows a state in which the battery cover 10 is locked to the bottom cover 4. Reference numeral 11a denotes a lock release lever for releasing the lock of the battery cover 10 from the camera 1, which will be described later.

  2A and 2B are external views showing a state in which the battery lid 10 is opened. FIG. 2A is a front view and FIG. 2B is a bottom view.

  Reference numeral 5 denotes a battery as a power source for the camera 1, and reference numeral 6 denotes a battery latching claw for restricting the battery 5 from popping out. By rotating the battery latching claw 6 to the camera front side (not shown), the latching with respect to the battery 5 is released, and the battery 5 can be inserted into and removed from the camera 1. As shown in FIG. 2, as a characteristic of the single-lens reflex camera, the grip 3 protrudes to the front side of the camera, and the battery housing portion 3a is formed by using the protruding shape. Therefore, the battery 5 is disposed along the shape of the protruding grip 3.

  As a result, as shown in FIGS. 1 and 2, the battery cover 10 is also formed in a region including the shape of the grip 3 protruding, and the rotation axis K is substantially parallel to the photographing optical axis Z.

  Next, the detailed structure of the battery lid 10 will be described with reference to FIGS.

  FIG. 3A is an external view of the battery lid 10 and shows a state in which the battery lid 10 is locked to the camera 1. FIG. 3B is an internal view of the battery lid 10 as seen from the direction of arrow T in FIG. 4A is an internal view of the battery lid 10 with a battery lid cover 15 described later removed, and FIG. 4B is an exploded perspective view of the battery lid 10. FIG. 5A is an external view of the battery cover 10 in a state in which the lock with respect to the bottom cover 4 is released, and FIG. 5B is a view of the battery cover 10 viewed from the direction of arrow T in FIG. FIG. 6 is an internal view of the state where the lock on the bottom cover 4 is released. FIG. 6 is a view showing a state when the battery cover 10 is removed from the camera 1.

  First, the attachment structure and function of the battery lid latching claw 11 will be described with reference to FIGS.

  The battery lid latching claw 11 is a member that latches the battery lid 10 to the bottom cover 4. When the battery lid locking claw 11 is locked to a not-shown locked portion of the bottom cover 4, the battery lid 10 is kept closed. A spring shaft 11 b is formed on the battery lid locking claw 11. The battery lid latching claw 11 is attached to the battery lid 10 with the latching spring 12 inserted in the direction of arrow B in FIG. 4B with respect to the spring shaft 11b, and the latching spring 12 is attached to the latching spring storage groove 10b. In a compressed state.

  The locking spring 12 is a compression spring, and always urges the battery lid locking claw 11 in the direction of arrow B in FIG. 4B to keep the battery lid 10 closed. When unlocking the battery lid latching claw 11, the latch release lever 11 a formed on the battery lid latching claw 11 shown in FIG. FIGS. 5A and 5B show the battery cover 10 in a state where the lock release lever 11a is operated and the battery cover locking claw 11 is unlocked from the bottom cover 4. FIG.

  As described above, the battery lid locking claw 11 is attached to the battery lid 10 so as to be movable in one direction. In this embodiment, a coil spring is used as the locking spring 12 for biasing the battery lid latching claw 11, but it may be biased by other means.

  Next, the attachment structure and function of the shaft member 13 will be described with reference to FIGS. 3, 4, and 6.

  The shaft member 13 shown in FIGS. 4A and 4B is a separate member from the battery lid 10, and in this embodiment, the first rotation that forms one side of the rotating shaft of the battery lid 10. It has a moving shaft 13a.

  The first rotation shaft 13 a is substantially coaxial with the second rotation shaft 10 a formed on the battery lid 10. The center of the first rotation shaft 13a and the center of the second rotation shaft 10a are connected to the rotation shaft center K. The shaft member 13 is formed with a spring shaft 13b. The shaft member 13 is attached to the battery cover 10 with the shaft biasing spring 14 inserted in the direction of arrow C in FIG. 4B with respect to the spring shaft 13b.

  Specifically, the fitting portion 13 c of the shaft member 13 is inserted into the fitting hole 10 c of the battery lid 10, and the fixed end 14 a of the shaft biasing spring 14 inserted into the spring shaft 13 b is connected to the battery lid 10. Is stored in the fixed end storage groove 10d. The shaft urging spring 14 is a compression spring, and always urges the shaft member 13 in the direction of arrow C in FIGS. The shaft member 13 has a shaft member moving lever 13d. When the shaft member moving lever 13d is operated in the direction of arrow D in FIGS. 4A and 4B against the urging force of the shaft urging spring 14, as shown by the chain line in FIG. The rotating shaft 13 a moves into the fitting hole 10 c of the battery lid 10.

  That is, since the first rotation shaft 13 a does not protrude from the battery lid 10, the battery lid 10 can be detached from the camera 1. The battery cover 10 is removed when an external power supply (not shown) or the like is attached to the camera 1.

  Subsequently, the battery lid cover 15 is fastened to the battery lid 10 with screws 16a, 16b, and 16c. A hole 15a is formed in the battery cover 15, and the shaft member moving lever 13d can be operated by inserting the shaft member moving lever 13d.

  FIG. 7 is an exploded perspective view showing a mounting structure of the rotating shaft pressing member 7 with respect to the bottom cover 4. FIG. 8A is a bottom view with the battery cover 10 removed, and FIGS. 8B and 8C. FIG. 4 is a partial cross-sectional view of a rotating shaft holding part of the battery lid 10.

  The rotating shaft pressing member 7 is fastened to the bottom cover 4 with screws 8a and 8b. At that time, the first rotation shaft pressing portion 7 a on the camera front side of the rotation shaft pressing member 7 is disposed in the hole 4 a of the bottom cover 4. Further, the second rotation shaft pressing portion 7 b on the camera back side of the rotation shaft pressing member 7 is disposed in the rotation shaft fitting hole 4 b of the bottom cover 4.

  The partial cross-sectional view shown in FIG. 8B is a cross-sectional view taken along the line QQ in FIG.

  The first rotation shaft pressing portion 7a has a rotation shaft fitting groove 7c, and the first rotation shaft 13a of the rotation shaft member 13 is fitted and elastically held. The first rotation shaft 13a is regulated by the first rotation shaft pressing portion 7a to move in three directions on the upper surface side of the camera, on the photographing optical axis Z side, and on the grip 3 side. It is regulated by the hole 4a. A gap 9 is provided between the first side surface 7d on the photographing optical axis Z side of the first rotating shaft pressing portion 7a and the second side surface 4c on the photographing optical axis Z side of the hole 4a.

  The partial cross-sectional view shown in FIG. 8C is a cross-sectional view taken along the line RR in FIG.

  The hole 4 a of the bottom cover 4 is formed to fit the second rotating shaft 10 a of the battery lid 10. The second rotation shaft 10a is regulated on the upper surface side of the camera by the first rotation shaft pressing portion 7b, and the movement of the bottom cover 4 in the three directions of the photographing optical axis Z side, the grip side, and the camera lower surface side is controlled. It is regulated by the fitting hole 4b.

  Thus, the battery cover 10 is attached to the camera 1 so that it can be opened and closed. In the present embodiment, the first rotation shaft pressing portion 7a and the second rotation shaft pressing portion 7b have different shapes, but the second rotation shaft pressing portion 7b is different from the first rotation shaft pressing portion 7a. The same shape or the same holding method may be used.

  In the camera configured as described above, the load applied to the battery cover 10 when the photographer accidentally drops the camera 1 will be described.

  FIG. 9A is a diagram illustrating a state in which the camera 1 is dropped from the tip of the grip 3, and FIG. 9B is a diagram schematically illustrating a relationship between loads applied to the battery lid 10 at that time. FIG. 10 is a partial cross-sectional view taken along line AA in FIG. 10A shows a state in which the battery cover 10 is attached to the camera 1, and FIG. 10B shows a first rotating shaft pressing portion 7a when the camera 1 falls from the tip of the grip 3. It is sectional drawing which shows the position change of the 1st rotating shaft 13a.

  In the case of a camera, since the battery 5 is attached to the battery housing part 3a of the grip 3 and a heavy object such as the interchangeable lens 2 is attached to the front side of the camera 1, the camera 1 as shown in FIG. There is a possibility of falling in a slightly tilted state. At that time, since the camera 1 receives an impact near the tip of the protruding grip 3, that is, from the direction of arrow P shown in FIG. 9B, the external force applied to the battery lid 10 is applied to the tip of the grip 3 of the battery lid. A rotation moment M about the second rotation shaft 10a is generated.

  When this rotational moment M is generated, the first rotating shaft 13a tends to move in the direction of arrow G shown in FIG. 10A, so that the first rotating shaft 13a is shown in FIG. 10B. Stress F is applied. In the conventional configuration, the first rotating shaft 13a of the battery lid 10 is damaged by the stress F.

  In such a state, according to the embodiment of the present invention, since the gap 9 is provided between the first side surface 7d and the second side surface 4c, as shown in FIG. The tip of the rotary shaft pressing portion 7a is elastically deformed in the arrow G direction. Along with the deformation of the first rotation shaft pressing portion 7a, the first rotation shaft 13a can move in the direction of the arrow G, so that the stress F applied to the first rotation shaft 13a can be released. . As a result, the stress applied to the base of the first rotating shaft 13a can be reduced, so that breakage can be avoided.

  As described above, according to the embodiment of the present invention, it is possible to avoid damage to the rotating shaft of the battery lid when the photographer inadvertently drops the camera.

  Although a preferred embodiment of the present invention has been described, the present invention is not limited to this embodiment, and various modifications and changes can be made within the scope of the gist thereof.

1 camera, 2 interchangeable lens, 3 grip, 3a battery compartment, 4 bottom cover,
4a hole portion, 4b rotation shaft fitting hole, 4c second side surface, 5 battery, 6 battery locking claw,
7 rotating shaft pressing member, 7a first rotating shaft pressing portion, 7b second rotating shaft pressing portion,
7c rotation shaft fitting groove, 7d first side surface, 8a, 8b screw, 9 gap, 10 battery cover,
10a Second rotation shaft, 10b Locking spring storage groove, 10c Fitting hole,
10d fixed end storage groove, 11 battery lid locking claw, 11a locking release lever,
11b Spring shaft, 12 Locking spring, 13 Rotating shaft member, 13a First rotating shaft,
13b spring shaft, 13c fitting portion, 13d shaft member moving lever, 14 shaft biasing spring,
14a fixed end, 15 battery cover, 15a hole, 16a, 16b, 16c screw

Claims (3)

A grip portion (3) projecting from the main body of the imaging device (1) to the front side;
A battery storage part (3a) that is formed inside the grip part (3) and stores a battery (5) for supplying power to the imaging device (1);
An openable and closable battery lid (10) disposed in the battery housing (3a);
A rotating shaft pressing member (7) for holding a part of the rotating shaft of the battery lid (10);
In the imaging device (1) in which the rotation axis (K) of the battery lid (10) is arranged in parallel to the imaging optical axis (Z) of the imaging lens (2),
The side surface on the photographing optical axis (Z) side of the first rotation shaft (13a) disposed on the front surface side of the imaging device (1) of the battery lid (10),
An image pickup apparatus, wherein the image pickup apparatus is elastically held by the rotating shaft pressing member (7). The rotating shaft pressing member (7) is arranged in four directions on the upper side of the imaging device (1), the lower side of the imaging device (1), the photographing optical axis (Z) side, and the grip side of the first rotating shaft (13a). The imaging apparatus according to claim 1, wherein three directions including the photographing optical axis (Z) side are held. In the rotation shaft pressing member (7), the first rotation shaft pressing portion (7a) holding the first rotation shaft (13a) is a first hole portion of the bottom cover (4) of the exterior. (4a),
The first side surface (7d) on the photographing optical axis (Z) side of the first rotating shaft pressing portion (7a) and the second side on the photographing optical axis (Z) side in the first hole (4a). The imaging device according to claim 2, wherein a gap (9) is provided on the side surface (4 c).