JPH028269Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a simple loading camera with a cartridge confirmation window, which has a cartridge confirmation window on the back cover and a storage chamber inside the back cover for inserting the cartridge in the axial direction of the cartridge. be.

The present applicant has already proposed a simple loading camera in which a cartridge storage chamber is provided inside the back cover in which a cartridge is inserted and loaded in the axial direction of the cartridge (for example, Japanese Patent Application No. 186574/1983).

On the other hand, it has been known to provide a cartridge confirmation window on the back cover of a camera so that the type of film being used, the number of frames, sensitivity, etc. can be seen from outside the camera.

When such a cartridge confirmation window is provided in the above-mentioned simple loading camera, a light-shielding member made of an elastic material such as moltoprene protrudes toward the cartridge side to prevent light from entering the window and exposing the film. Because of this, when inserting the cartridge, the bottom edge of the cartridge gets caught on the protruding light shielding member, making it difficult to insert and load the cartridge smoothly. Moreover, if the light shielding member gets caught each time it is inserted, the light shielding member may turn over over a long period of time, which may reduce the light shielding function, which is not preferable.

The object of the present invention is to solve the above-mentioned problems and provide a simple loading camera with a confirmation window that allows easy insertion of a cartridge.

The camera of the present invention is a simple loading camera with a confirmation window, which has a cartridge confirmation window on the back cover of the camera, and a cartridge storage chamber in which the cartridge is inserted and loaded in the axial direction. The chamber is configured to be large enough to allow the cartridge to be inserted away from the confirmation window when inserting the cartridge, or configured to be movable in a direction perpendicular to the confirmation window, and the side wall of this storage chamber on the side of the camera body is The device is characterized in that an opening is provided at the back cover, and a spring means is provided which enters the opening and biases the cartridge in the storage chamber against the confirmation window when the back cover is closed. In an example where the storage room is movable, there is an opening in the side wall of the storage room facing the confirmation window so that when the storage chamber and the cartridge inside are pressed against the confirmation window, the outer surface of the cartridge is pressed directly against the confirmation window. will be provided.

According to the present invention, when inserting the cartridge, the cartridge is inserted at a position away from the confirmation window, so the cartridge does not get caught in the light shielding member of the confirmation window, and can be loaded smoothly. When the back cover is closed, the spring means presses the cartridge against the confirmation window, so that while the camera is in use, the cartridge remains in close contact with the confirmation window, making it easy to see the display on the cartridge and providing sufficient light protection. .

Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 4 show a first embodiment of the present invention, and FIG. 1 shows a cartridge storage chamber provided in a part of the camera back. Inside the right end of the camera back 1 (as viewed from the back of the camera), there is a cylindrical cartridge storage chamber 2 that is integrally fixed and has a cross section that is open at the top and expands in the opening/closing direction (arrow A) of the camera back 1. It is set up. This storage chamber 2 is provided with a slit 4 that engages with the protrusion 3a of the film outlet of the film cartridge 3. As shown by arrow B, it is inserted from above in the axial direction and loaded into the storage chamber 2. The cartridge cannot be inserted unless the projection 3a is engaged with the slit 4, that is, unless the cartridge 3 is oriented in the correct direction.

Although the outer shape of the side wall 2a of the cartridge storage chamber 2 is a prismatic shape in the illustrated example, it is not limited to a prismatic shape. A confirmation window 5 is provided in the part of the back cover 1 where this storage chamber 2 is provided, and is used to view the information display area regarding the film printed on the outside of the cartridge 3. A transparent plastic plate 5a is used to prevent
is fitted.

FIG. 2 is a top view of the part shown in FIG. 1. In addition to the above-mentioned structure, there is a light shielding member 5b such as moltoprene provided in the confirmation window 5 against which the cartridge 3 is pressed, and the inside of the camera body 6. A spring 7 is shown which is provided to press the cartridge 3 toward the confirmation window 5 side. Spring 7 is the camera body 6
It extends into the storage chamber 2 through an opening 2b provided in a side wall 2a of the storage chamber 2 in a portion facing the camera body 6. The portion of the spring 7 that presses the cartridge 3 is preferably located near the position facing the slit 4 of the storage chamber 2. This is because the protrusion 3a of the cartridge 3 can be reliably engaged with the slit 4, and the display section of the cartridge 3 can be reliably pressed against the confirmation window 5, so that the display section can be easily viewed.

FIG. 3 shows a state in which the camera back 1 is opened and the cartridge 3 is inserted into the storage chamber 2, and FIG. 4 is a diagram showing a state in which the camera back 1 is closed and the cartridge 3 is pressed against the confirmation window 5. . When inserting Patrone 3,
Since the cartridge storage chamber 2 has a shape that expands in the opening/closing direction of the back cover 1, it can be inserted at a position where it will not be caught by the light shielding member 5b, such as Moltoprene, provided inside the confirmation window 5.

In order to reliably prevent the cartridge 3 from being caught on the light shielding member 5b during this insertion, it is better to provide a guide spring 8 on the inner surface of the opening at the upper end of the storage chamber 2 on the side of the confirmation window. This guide spring 8 is designed to prevent the cartridge 3 from getting caught on the light shielding member 5b of the confirmation window 5 when inserting the cartridge.
When the cartridge 3 is pressed against the confirmation window 5, it bends and has enough elasticity not to disturb the cartridge.

When the back cover 1 is closed from the state shown in FIG. 3, the spring 7 on the camera body enters into the storage chamber 2 through the opening 2b in the side wall 2a of the storage chamber 2, as shown in FIG. 5b against the light shielding member 5b. Therefore, the light shielding member 5b is in close contact with the outer surface of the cartridge 3, and accurately positions the cartridge 3.
In addition, the cartridge display section can be easily viewed through the confirmation window 5, and light can be prevented from entering from this portion.

In the first embodiment, the size of the storage chamber is made large enough to allow room in the opening and closing direction of the camera back so that the cartridge can be inserted without getting caught in the confirmation window when the cartridge is inserted. The storage chamber may be movable in the opening/closing direction of the back cover, and the storage chamber may be pressed against the back cover when the back cover is closed.
Such an example will be explained below with reference to FIGS. 5 and 6.

FIG. 5 shows the case back in an open state, and FIG. 6 shows it in a closed state. A cartridge storage chamber 12 is provided inside the back cover 10 and biased by a spring 11 to a position away from the back cover 10. This storage chamber 12 is large enough to just store the cartridge 13, and has openings 12a and 12b on the back cover side and the camera body side.
are provided for each. Although the slit for taking out the film is not shown, it is provided in the same way as in the first embodiment. A cartridge confirmation window 15 is provided on the back cover 10 as in the first embodiment, and this window includes a plastic plate 15a and a light shielding member 15b. The light shielding member 15b protrudes toward the camera body and is adapted to just enter into the opening 12a on the back cover side of the storage chamber 12. The camera body 16 is provided with a pusher 17 that enters the opening 12b on the camera body side of the storage chamber 12. When the back cover is closed, the pusher 17 enters through the opening 12b and pushes the cartridge 13 directly toward the back cover. It's becoming like that.

FIG. 6 shows the back cover 10 in a closed state. In this state, the pusher 17 on the main body side pushes the cartridge 13 through the opening 12b of the storage chamber 12, and the cartridge 13 is pressed against the light shielding member 15b of the confirmation window 15 through the other opening 12a. When the cartridge 13 is pushed, the storage chamber 12 is pushed and moved toward the back cover 10 against the force of the spring 11.

In this second embodiment, when the back cover 10 is opened, the storage chamber 12 is located away from the back cover 10, so the cartridge 13 can be inserted without any trouble, and the size of the storage chamber 12 is the same as that of the cartridge 13. Since it is made according to the size, there is no play in the storage chamber 12,
Loading the cartridge is done smoothly and reliably.

As is clear from the above description, the camera of the present invention is a simple loading camera equipped with a storage chamber into which the cartridge is inserted in the axial direction in a predetermined direction, and the cartridge does not get caught on the light-shielding member of the confirmation window when inserted. Loading is smooth because the cartridge is inserted without any problems, and when the back cover is closed, the cartridge is pressed against this light shielding member by a spring, so that sufficient light is shielded.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the main parts of the first embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG.
The figure is a side sectional view showing the back cover in the open state, Figure 4 is a side sectional view showing the back cover in the closed state, and Figure 5 is the second embodiment of the present invention with the back cover open. FIG. 6 is a side sectional view showing the case with the back cover closed. 1, 10...Camera back cover, 2, 12...Patrone storage chamber, 2a...Storage chamber side wall, 2b, 12
a, 12b...Storage chamber opening, 3, 13...Film cartridge, 4...Storage chamber slit, 5, 15
...Patrone confirmation window, 6, 16...Camera body, 7...Spring, 17...Pusher, 8
...Guide spring.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A cartridge confirmation window is provided on the back cover of the camera, and a cylindrical cartridge storage chamber with an opening at the top is provided inside the window so that the cartridge can be inserted and loaded in the axial direction of the cartridge. and the cartridge storage chamber is configured such that when the back cover is opened and the cartridge is inserted, the cartridge is inserted away from the confirmation window, and the cartridge storage chamber is configured such that the cartridge is inserted away from the confirmation window. An opening is provided in the side wall facing the camera body, and a spring means is provided on the side of the camera body that enters the opening and urges the cartridge in the storage chamber to be pressed against the confirmation window when the back cover is closed. Easy loading camera. 2. The simple loading camera according to claim 1, wherein the cartridge storage chamber has a shape that expands in the opening/closing direction of the camera back. 3. The cartridge storage chamber is movable between a position in contact with the back cover and a position away from the back cover, and is biased by a spring so as to be in a position away from the back cover when the back cover is open. Registration of a utility model characterized in that an opening is provided in the side wall of the storage chamber on the back cover side so that the part of the confirmation window protruding inward from the back cover contacts the cartridge in the storage chamber when it is in contact with the camera back. A simple loading camera according to claim 1.