JP3003676U - Camera body structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a main body structure of a camera that can be made smaller and lighter. A part of an outer surface of a rear exterior cover 13 of the camera body 11 is formed by an outer surface 18b of a part of a dividing wall part 18 that regulates a spool chamber 20 that accommodates a spool 21 for winding a film in the camera body 11. What I did.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a main body structure of a camera.

[0002]

[Prior art and its problems]

 In a conventional camera, for example, as shown in FIG. 3, a camera body 30 includes a front exterior cover 31 that forms the exterior of the front of the camera body 30, and a rear exterior cover 33 that forms the rear of the camera body 30. And the back cover 35 constitute the main exterior.

In such a camera, several members are integrated to reduce the size and weight. In this camera, a main body wall portion 37 forming a part of a spool chamber 40 accommodating a spool 41 is formed integrally with an aperture frame 39. Furthermore, the spool chamber 40 is formed by a main body wall portion 37 and a division wall portion 38 which is separate from the main body wall portion 37. The main body wall portion 37 is fixed to the front exterior cover 31 and the like, and the dividing wall portion 38 is fixed to the main body wall portion 37. In addition, reference numerals 43 and 45 are film retainers for removing the slack of the film. Even in such a camera, further reduction in size and weight has been desired in recent years.

[0004]

[The purpose of the device]

 The present invention has been made in view of the above problems of the conventional camera, and an object of the present invention is to provide a main body structure of a camera which can be made smaller and lighter.

[0005]

[Outline of the device]

 The present invention that achieves this object is characterized in that, in a camera, a part of an exterior cover forming a camera body is formed by a part of a wall member forming a film chamber for accommodating a film.

[0006]

【Example】

 The present invention will be described below with reference to illustrated embodiments. A camera body 10 of a lens shutter type camera to which the present invention is applied includes a front exterior cover 11 forming a front portion of the camera body 10, a rear exterior cover 13 forming a rear portion of the camera body 10, and a back cover 15. The interior space of the body, which is shielded by these, is restricted. Further, the front exterior cover 11, the rear exterior cover 13, and the back cover 15 are made of synthetic resin, and the back cover 15 is rotatably supported by the rear exterior cover 13 via a shaft 16. ing.

A peripheral wall (partition) of the spool chamber 20 is formed by a main body wall portion 17 having an arcuate cross section for almost half of its circumference, and the remaining peripheral wall is formed by a division wall portion 18 separate from the main body wall portion 17. There is. The inner peripheral surface 17a of the main body wall portion 17 and the inner peripheral surface 18a of the dividing wall portion 18 regulate the spool chamber 20. Further, the main body wall portion 17 is integrally formed of the same synthetic resin material as the aperture frame 19 which regulates the aperture. Further, in this embodiment, the partition wall portion 18 is integrally formed of the same synthetic resin material as the rear exterior cover 13. In other words, a part of the outer surface 18b of the partition wall portion 18 forming the spool chamber 20 forms a part of the outer surface of the rear exterior cover 13. Although not shown, a patrone wall portion that restricts the patrone chamber may be integrally formed at the other end of the aperture frame 19.

The spool chamber 20 is surrounded by the main body wall portion 17 and the dividing wall portion 18 except for the opening portion on the side of the back cover 15, and the upper and lower sides are not shown, but from the main body wall portion 17 and the dividing wall portion 18. It is surrounded by the protruding wall portion, the exterior cover 11 and the rear exterior cover 13, etc., and is shielded from the outside and an unillustrated photographing optical path.

The upper and lower ends of the spool shaft 21 are axially supported by the main body wall portion 17 and the division wall portion 18, and are housed in the spool shaft 21 by a film winding device in the camera body (not shown). By a winding device having a motor, it is driven to rotate or is made free of rotation. In the figure, reference numerals 23 and 25 denote film pressing springs for slackening the film. One film pressing spring 23 is fixed to the main body wall portion 17, and the other film pressing spring 25 is attached to the back cover 15. It is fixed.

As described above, in this embodiment, the partition wall portion 18 is formed integrally with the rear exterior cover 13, and the spool chamber 18 is regulated by the inner surface 18a of the partition wall portion 18, and the outer surface on the side opposite to the inner surface 18a is regulated. Since a part of the outer surface 18b of the rear outer cover 13 forms a part of the outer surface, the thickness between the inner peripheral surface 18a of the spool chamber 20 and the outer surface 18b of the rear outer cover 13 becomes thin and thin. The width of the camera has become narrower and the weight has been reduced due to the reduction of materials.

In the illustrated embodiment, the partition wall portion 18 forming the spool chamber 20 is extended from the rear exterior cover 13 or the rear exterior cover 13 is formed by a part of the partition wall portion 18. The shape of the main body wall 17 and the partition wall 18 of the spool chamber 20 is not limited to the illustrated embodiment. In the present invention, the exterior cover may be formed in a frame shape that constitutes the upper, lower, left, and right side surfaces of the camera body, and the dividing wall portion 18 may be formed integrally with the frame-shaped exterior cover. Further, the front exterior cover 11 and the rear exterior cover 13 may be integrally formed.

Further, the present invention is not limited to a lens shutter type camera, but can be applied to a single-lens reflex camera, and is not limited to the spool chamber 20, and can be applied to a cartridge chamber, a battery storage chamber, and the like. , Especially easy to apply to structures that are close to exterior covers, and is also suitable.

[0013]

[Effect of device]

 As is apparent from the above description, in the present invention, a part of the wall forming the spool chamber is formed integrally with the outer cover of the camera body, and unnecessary thickness is eliminated between the spool chamber and the outer cover. The body can be made smaller and lighter.

[Brief description of drawings]

FIG. 1 is a sectional view showing a main part of an embodiment of a camera to which the present invention is applied.

FIG. 2 is a side view of the camera.

FIG. 3 is a sectional view of a conventional camera.

[Explanation of symbols]

 10 Camera Body 11 Front Exterior Cover 13 Rear Exterior Cover 15 Back Lid 17 Main Body Wall 18 Dividing Wall 19 Aperture Frame 20 Spool Chamber 21 Spool Shaft

Claims (3)

[Scope of utility model registration request] 1. A main body structure of a camera, characterized in that a part of an exterior cover constituting a camera body is formed by a wall member constituting a film chamber for accommodating a film in the camera. 2. A part of an outer surface of an outer cover of a camera body is formed by a surface of a wall member forming a spool chamber for accommodating a spool for winding a film, the surface being opposite to a surface on the spool chamber side. The body structure of the camera. 3. The camera body structure according to claim 2, wherein the other part of the wall member is integrally formed with an aperture frame forming an aperture.