JPS6139396Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a cartridge holding member for a camera.

Conventionally, when loading film into a camera, the elasticity of the cassette film causes it to rotate, causing the film to not be placed in the correct position, and the cassette's film outlet obstructing the closing of the camera back. For this reason, an elastic member to prevent rotation of the cartridge was installed on the wall of the cartridge chamber. However, it required many parts such as mounting screws, and was not easy to assemble because it was assembled inside the cartridge chamber.

In recent years, especially as the number of film easy loader devices being incorporated has increased, the appearance of a cartridge holding member that is low cost and works well has been awaited.

The present invention was made with the aim of meeting such demands, and the cartridge pressing member includes a pressing portion that presses the cartridge against the side wall when the cartridge is stored in the cartridge storage chamber;
The technical point is that the camera is comprised of a back cover locking section that locks the back cover of the camera when it is closed.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In FIG. 1, a cartridge chamber 2 is formed on one side of a camera body 1, and slits 3a and 4a are formed in an upper wall 3 and a lower wall 4, respectively.

The back cover locking member Y10 is made of an elastic plate made of synthetic resin, and is roughly divided into a locking portion 11 and a cartridge holding member 16. The locking parts include an elongated support part 12, flange-shaped light shielding parts 13 and 14 at both ends of the support part, and a locking protrusion 1 in the middle of the support part.
5, the length of the support part 12 is the length of the upper and lower walls 3 and 4.
longer than the interval between. On the other hand, the cartridge holding member has a pair of elastic pieces 1 that are continuous with the extension part 17 extending from the support part 12 and are formed in a plane that intersects with the extension part 17.
Consists of 8.

When setting the back cover locking member 10 in the cartridge chamber 2, as shown in FIG. and fit both ends 23 and 24 of the support part into the slits 3a and 4a from the inside. Since the support portion 12 is thin in the lateral direction, it is easily curved at this time. By this fitting, the light shielding parts 13 and 14 come into contact with the upper wall part 3 and the lower wall part 4, respectively, thereby preventing light leakage from the slit and contributing to correct positioning of the locking member 10.

Although not shown in FIG. 1, in the actual camera body 1, one side of the back cover 31 is pivotally attached to the side where the take-up spool 26 is arranged, as shown in FIGS. 3 and 4. . A hook portion 32 and its knob 33 are attached to the free end of the back cover 31.
This hook portion 32 is a locking protrusion 15 when the back cover 31 is closed.
is locked to prevent the back cover from opening. In order to open the back cover 31, it is sufficient to operate the knob 33 to displace the hook portion 32 and disengage it from the hook portion 15. The locking portion 11 is wide in the front-rear direction (in the direction of the optical axis of the lens), so it is difficult to deform, and can sufficiently withstand the force of opening the back cover 31.

As is clear from FIG. 4, the cartridge 36 is loaded into the cartridge chamber 2 and the back cover 31 is closed (the hook 32 is locked to the protrusion 5).
In this case, the cartridge pressing member 16 effectively acts to position the cartridge 36. That is, elastic piece 1
8 biases the cartridge 36 in one direction (diagonally upward right in FIG. 4) and positions the film outlet 36a to face a predetermined direction. Therefore, the film F extends straight in the direction of the spool 26 and is securely engaged with the spool.

Incidentally, in order to prevent the locking portion 11 from wobbling because the locking member 15 is located at the center, a protrusion 39 (FIG. 2) may be formed on the side wall of the cartridge chamber 2.

In this example, since the cartridge pressing member 16 is integrally formed with the support portion 11 of the back cover locking portion 10, special members, screws, etc. are required for attaching and holding the cartridge pressing member. No longer needed. Moreover, the cartridge holding member, that is, the back cover locking member 10 can be easily attached.

Note that the specific shape of the cartridge holding member 16 can be changed as appropriate, and the entire back cover locking member 10 can be made of a metal plate. Furthermore, the cartridge holding member 16 and the locking portion 11 can be made separately. You can also combine them later.

As described above, according to the present invention, the cartridge holding member is a small number of parts and can be easily installed in the cartridge chamber to bias the cartridge in a predetermined direction, thereby making it easy to rotate the film. Ru.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing an embodiment of the present invention and the inside of the camera body (partially omitted), Fig. 2 is a partial vertical sectional view showing its assembled state, Fig. 3 is a perspective view of the entire camera, FIG. 4 is a cross-sectional view thereof. Explanation of symbols of main parts, 1... Inside camera body, 2... Patrone chamber, 10... Back cover locking part, 11... Locking part, 16... Patrone holding member, 31... Back cover, 36 ...Patrone.

Claims (1)

[Scope of utility model registration request] A cartridge pressing member provided in a cartridge storage chamber formed within the camera body, which includes a pressing portion that presses the cartridge against a side wall of the cartridge storage chamber when the cartridge is stored in the cartridge storage chamber; 1. A camera cartridge holding member comprising a back cover locking portion for locking a back cover of the camera to the camera body.