JPH0210516Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a film feeding device for a camera.

Conventionally, in so-called autoloading film feeding devices that automatically wind the leading edge of the film loaded in the camera body around the spool, a roller is placed against the camera body to press the film against the spool. It is well known that the camera is supported by a back cover that can be opened and closed; for example, the configuration shown in FIG. 1 is known. That is, in FIG. 1, 1 is the axis 7
2 is a support plate fixed to the back cover 1, and 3 is a lever that supports the roller 5 on the swinging end side. It is rotatably supported by a shaft 4 provided in the holder, and is biased counterclockwise by a spring (not shown). Further, 6 is a side wall 8a inside the camera body when the back cover 1 is closed as shown in the figure, in order to block incident light from the space 9 around the shaft 7.
This light shielding plate 6 is formed integrally with the back cover 1. However, such a configuration requires a large number of parts to support the roller 5, which is inconvenient in terms of cost.

For this reason, it has been proposed to reduce the number of parts in such a film feeding device by supporting the roller with a leaf spring whose one end is fixed to the back cover. However, leaf springs may deform if excessive external force is applied to them, so if the rollers are supported through leaf springs, there is a risk that the rollers may not be able to properly press the film due to the deformation of the leaf springs. It was hot. In particular, with such a device, there is a high possibility that the leaf spring will be accidentally pressed forcibly when the back cover is opened, making it difficult to realize a configuration in which the roller is supported by the leaf spring.

The present invention was developed in view of the above circumstances, and includes a pressing member for pressing the film onto the spool,
A support member that is fixed to the back cover of the camera and supports the pressing member by rising from the fixation point, and a support member that extends around the support member of the back cover so that the support member is not deformed by external force. To provide a film feeding device for a camera which is inexpensive and prevents a supporting member of a pressing member for pressing the film against a spool from being deformed by external force. It is something.

Hereinafter, the present invention will be explained in detail based on the embodiments shown in the drawings.

FIG. 2 is a sectional view showing an embodiment of the camera film feeding device of the present invention.
is a back cover plate, 12 is a pin 1 formed on the back cover plate 11
It is a hinge member fixed to the back cover plate 11 via 1a, and one end 12a of the hinge member is bent into a circumferential shape and rotatably fitted to a hinge shaft 19 implanted in the camera body 18. 13 is a light shielding member 14 that is fixed to the back cover plate 11 with screws (not shown) and constitutes the back cover 10 together with the back cover plate 11 and the hinge member 12;
is fixed by a plate spring serving as a support member whose one end is fixed to the light shielding member 13 and the other end rotatably supports the roller 15 as a pressing member for pressing the film 17 against the spool 16. The roller 15 extends from the end along the winding direction of the film 17 and is bent three times in the shape of a dogleg in the middle, so that the roller 15 is located near the spool 16. Also, due to the elastic deformation of the leaf spring 14, the roller 15 causes the film 17 to move onto the spool 1.
6, it moves from the two-dot chain line position to the solid line position while resisting the elastic force of the leaf spring 14.

Reference numeral 20 denotes a light shielding plate formed integrally with the light shielding member 13. In the illustrated back cover closed state, the light shielding plate 20 comes in close contact with the side wall 18a of the spool chamber provided in the camera body 18, thereby preventing light from surrounding the end 12a of the hinge member 12. It is designed to block outside light. This light shielding plate 2
0 protrudes from the light shielding member 13 in the direction approaching the roller 15, and has a larger protrusion amount than a normal light shielding plate (for example, "6" in FIG. 1) so that its tip is higher than the roller 15 in the illustrated state. have. Therefore, in this embodiment, the roller 15 is
When located at the dot-dashed line position, the tip of the light shielding plate 20 and the lower end of the roller 15 are at approximately the same height from the light shielding member 13. Moreover, both side ends of the light shielding plate 20 are
As shown in FIG. 3, it extends obliquely toward the fixation point of the leaf spring 14, and constitutes a protective member that covers the periphery of the leaf spring 14 as a whole. That is, when the roller 15 is pressed downward in FIG. Lateral (third
This makes it impossible to press from the direction of the arrow in the figure.

Further, the film loading operation in this embodiment is as follows. After the tip of the film 17 is brought into contact with the spool 16, when the back cover 10 is rotated around the shaft 19 and closed, the roller 15 presses the tip of the film 17 against the spool 16. In this state, when the spool 16 is rotated counterclockwise by the drive of a motor (not shown) in response to the release operation,
The film 17 is automatically wound around the spool 16, but since this operation is well known in the art, a detailed explanation will be omitted.

In this embodiment, the light shielding plate 20 is formed on the light shielding member 13 which also serves as a cover for the hinge member 12 fixed to the back cover 11. In the case where the light shielding plate 20 is directly formed, the light shielding plate 20 may be formed directly on the back cover.

As explained above, according to the present invention, it is inexpensive,
It is possible to provide a film feeding device for a camera in which the pressing member for pressing the film against the spool is not deformed by external force, and its effectiveness is extremely high.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a conventional film feeding device, FIG. 2 is a sectional view showing an embodiment of the film feeding device of the present invention, and FIG. 3 is a perspective view showing the entire embodiment. It is. 10... Back cover, 14... Leaf spring, 15... Roller, 16... Spool, 17... Film, 2
0... Light shielding plate.

Claims (1)

[Scope of utility model registration request] a pressing member for pressing the film onto the spool; a support member that is fixed to the back cover of the camera and supports the pressing member at a rising point from the fixed point;
A film feeding device for a camera, comprising: a protection member provided around the support member of the back cover along a rising edge of the support member so that the support member is not deformed by external force.