JP3413770B2 - Drop-in loading camera - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drop-in loading (hereinafter sometimes referred to as "DIL") type camera for axially loading a cartridge in a cartridge loading section.

[0002]

2. Description of the Related Art Conventionally, there has been known a DIL type camera configured to drop a cartridge in an axial direction from a loading opening of a loading portion of a loading opening of a loading opening of the camera and load the loading. In the general type of DIL type camera, the cartridge loading section is formed integrally with the camera body. However, the applicant of the present application constructed the cartridge loading section so that it can be pulled out from the camera body to load the cartridge. We propose a DIL type camera with a drawer structure in which the loading lid of the camera is opened and the cartridge loading part is pulled out from the camera body when loading and unloading (patent application 6-172469, etc.). . In the DIL type camera having this drawer structure, it is not necessary to provide a portion for covering the loading opening of the cartridge loading portion on the loading lid, so that the loading lid can be simplified in shape, that is, only one surface of the camera body can be covered. Therefore, it is easy to dispose a waterproof seal between the loading lid and the camera body, and this is suitable for making the camera a waterproof structure.

A conventional example of a DIL type camera having the above-mentioned drawer structure is shown in FIGS. FIG. 8 is a perspective view of a conventional DIL type camera having a drawer structure, and FIG. 9 is a vertical cross-sectional view of the conventional DIL type camera with a loading lid closed.

The illustrated camera comprises a camera body 1, a back cover 3 as a loading lid which is opened and closed when loading and unloading the cartridge 2, and a cartridge loading section 4 in which the cartridge 2 is loaded. The cartridge loading section 4 has a loading port 4a on the upper surface, and the cartridge 2 is dropped into the cartridge loading section 4 from the loading port 4a and loaded.

The back cover 3 has its left side edge portion pivotally supported on the left side edge portion of the camera body 1, and a pressure plate 5 is attached to the center portion of its inner surface 3a. The cartridge loading section 4 is configured separately from the camera body 1, and is attached to the other end of a plate-shaped film guide 6 whose one end is pivotally supported on the left side edge of the camera body 1. It is constructed so that it can be pulled out from the camera body 1 by rotating the film guide 6. Further, the cartridge loading section 4 includes a locking member 7 attached to the inner surface 3 a of the back cover 3.
It is normally locked to the back cover 3 via the, and when the back cover 3 is opened, it is pulled out together with the film guide 6 from the camera body.

The film guide 6 forms a slit-shaped insertion passage between the film cassette 6 and the pressure plate 5 when the cartridge loading unit 4 is locked to the back cover 3, and the cartridge 2 is inserted into the cartridge loading unit 4. When being loaded, the film leader 8 which is curled and extended from the cartridge 2 is inserted through the insertion passage to be extended and guided into the camera. Further, the film guide 6 includes a pressure plate 5 on the side of the back cover 3 and a back surface 1 of the camera body 1 when the back cover 3 is closed.
a screen frame 1b formed on the back surface 1a of the camera body 1 at the center thereof.
An opening 6a having a size that does not cover the inside is formed.

Further, on the back surface 1a of the camera body 1, a pair of upper and lower inner guide rails 1c extending parallel to each other in the lateral width direction of the camera body 12 at the upper and lower edges of the screen frame 1b. And a pair of upper and lower outer guide rails 1d extending parallel to each other in the left-right width direction of the camera body 12 at a position slightly apart from the inner guide rail 1c in the vertical direction.
(Note that the illustrated outer guide rail 1d is separated in the left-right direction). Outer guide rail 1
As shown in FIG. 9, d is a film which is abutted against the pressure plate 5 when the back cover 3 is closed to form a tunnel portion between the back surface 1a of the camera body 1 and the pressure plate 5 and which is loaded in the tunnel portion. The inner guide rail 1c forms a gap between the inner guide rail 1c and the pressure plate 5 in the tunnel portion, and the film is sandwiched in this gap to move the film in the front-back direction. It is configured to regulate the displacement.

On the other hand, the film guide 6 has such a size that the opening 6a surrounds the inner guide rail 1c so as not to interfere with the inner guide rail 1c and the outer guide rail 1d when housed in the camera body 1. And an insertion hole 6b for the outer guide rail 1d is formed.

[0009]

If the film guide as described above has a low rigidity, the film guide is deformed by the force received from the film leader when the film leader with a strong curl is loaded, and the film leader is It may not be loaded properly. However, as described above, the film leader is formed with an opening formed one size larger than the size of the screen frame so as not to interfere with the inner guide rail and an insertion hole so as not to interfere with the outer guide rail 1d. Therefore, the rigidity tends to be low. As shown in FIG. 9, the film guide is housed between the rail surface of the inner guide rail and the back surface of the camera body. Therefore, if the thickness of the film guide is increased in order to increase the rigidity of the film guide, the film guide is correspondingly increased. There is a problem that the height of the guide rail has to be increased, resulting in an increase in the thickness of the camera.

The present invention has been made in view of the above circumstances, and an object thereof is to reduce the area of an opening and an insertion hole formed in a film guide which can be pulled out from a camera body together with a cartridge loading section. The purpose of the present invention is to provide a DIL type camera capable of increasing the rigidity of the film guide without increasing the thickness of the film guide.

[0011]

To achieve the above object, the present invention is characterized in that a guide rail is provided on the film guide.

That is, the drop-in loading type camera of the present invention is arranged between the loading lid of the camera and the camera body, and can be pulled out from the camera body together with the cartridge loading section in which the cartridge is axially loaded. The film guide having an opening formed in a size that does not cover the inside of the screen frame provided on the camera body extends the leader portion of the film extended from the film cartridge when the film cartridge is loaded. In the camera configured so as to be guided into the camera, a guide rail for regulating the position of the film is provided on the surface of the film guide facing the loading lid side.

The guide rail may be an inner guide rail for restricting the displacement of the film in the front-rear direction.

In another aspect, the guide rail may be an outer guide rail for restricting the vertical displacement of the film.

Alternatively, the guide rails may be inner guide rails and outer guide rails.

The film guide and the guide rail can be integrally formed of a plastic material.

Alternatively, the film guide and the guide rail can be integrally bent and formed from a metal plate material.

One end of the film guide can be pivotally supported on the camera body, and a cartridge loading section can be attached to the other end.

[0019]

ACTION AND EFFECTS OF THE INVENTION As described above, the DIL of the present invention
In the camera of the type, the guide rails that were conventionally formed on the camera body are provided on the film guide, which reduces the area of the openings and insertion holes formed in the film guide and reduces the thickness of the film guide. It is possible to increase the rigidity of the film guide without increasing

That is, when the inner guide rail is provided on the film guide, the inner guide rail has to be formed one size larger than the size of the screen frame in order to surround the inner rail provided along the screen frame of the camera body. The opening for the screen frame, which was not present, can be reduced to a size almost equal to the size of the screen frame.If the film guide is provided with an outer guide rail, it will be It is possible to eliminate the insertion hole for inserting the outer rail, which had to be formed in the film guide to avoid interference, and when the inner guide rail and the outer guide rail are provided on the film guide, It is possible to make the size of the opening one size smaller than the conventional size, and it is possible to eliminate the insertion hole for inserting the outer rail. And, the thickness of each film guide (the thickness of the portion where the guide rail is not provided)
It is possible to increase the rigidity of the film guide without increasing the film thickness.

As described above, according to the present invention, the rigidity of the film guide can be increased without increasing the wall thickness of the film guide, so that the film guide is not deformed at the time of loading the film and the film is not loaded properly. Thus, it is possible to provide a DIL type camera having a drawer structure in which a film can be reliably loaded and which can be made thin.

If the size of the opening for the screen frame is reduced by providing the film guide with the inner guide rail, there is less possibility that the curled film will fall into the opening when the film is loaded. From this point, it is possible to reliably load the film.

[0023]

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

FIG. 1 shows a first DIL type camera of the present invention.
2 is a perspective view showing a state in which a loading lid and a cartridge loading portion of the camera shown in FIG. 1 are separated from each other, and FIG. 3 is a camera body in a state in which the loading portion is loaded from the loading lid side. As seen, FIG. 4 is a vertical cross-sectional view of the camera with the loading lid closed.

The illustrated camera 10 includes a camera body 12 and a back cover that covers the back surface 12a of the camera body 12 as a loading lid that opens and closes when loading or unloading the cartridge 14.
16 and a cartridge loading section 18 into which the cartridge 14 is loaded. The cartridge loading section 18 has a loading port 18a on the upper surface.
The cartridge 14 is loaded in the cartridge loading section 18 by dropping it in the axial direction from the loading port 18a.

The back cover 16 is rotatable around a rotation axis 20 extending in the vertical direction at the left side edge of the back cover 16 so that a pressure plate 24 is provided at the left side edge of the rear surface 12a of the camera body 12 via a hinge 22. And a rubber seal member 26 is provided on the peripheral edge of the inner surface 16a. In addition,
A commercially available O-ring or the like may be used as the seal member.

The cartridge loading section 18 is constructed separately from the camera body 12 and has a pivot axis 30 extending vertically in the vicinity of a film winding chamber 27 having one end formed in the camera body 12. It is attached to the other end of a film guide 28 which is rotatably supported by a screw or the like so that it can be pulled out from the camera body 12 by rotating the film guide 28.

As shown in FIG. 2, the cartridge loading section described above.
Two connecting arms 32 projecting toward the back cover 16 are attached to the outer peripheral surface of 18, and engaging projections 32a are provided at the tips thereof.
Is equipped with. On the other hand, on the inner surface 16a of the back cover 16, a connecting body 34 is attached at a position corresponding to each of the connecting arms 32. The connecting body 34 is made of a material such as metal or plastic that is elastically deformable, and has a mountain-shaped convex portion 34a having two inclined surfaces formed by bending at its tip. By engaging the chevron convex portion 34a of the connecting body 34 and the engaging convex portion 32a of the connecting arm 32, the back cover 16 and the cartridge loading portion 18 are connected and integrated.

The opening of the film guide 28 and the cartridge loading section 18 is regulated by a regulation member (not shown) so as not to open more than a predetermined angle. It is configured to open up to. Therefore, if the back cover 16 is opened slightly beyond the above-mentioned predetermined angle, the back cover 16 and the cartridge loading section 18 can be relatively separated from each other, whereby the mountain-shaped convex portion 34a of the connecting body 34 is inclined to the left side. By the action of the above, it can be elastically deformed and removed from the engaging convex portion 32a of the connecting arm 32, and the connection between the back cover 16 and the cartridge loading portion 18 can be easily released.

Further, the cartridge loading section 18 has a structure in which it is stopped at a predetermined position in the camera body 12 when it is closed.
When the back cover 16 is closed, the cartridge cover 18 is also pushed in the closing direction by the back cover 16 to be housed in the camera body 12 and stopped at the above-mentioned predetermined position. The lid 16 and the cartridge loading section 18 can be brought relatively close to each other, whereby the connecting body 34
The mountain-shaped convex portion 34a is elastically deformed by the action of the right inclined surface thereof to engage with the engaging convex portion 32a of the connecting arm 32, and
The 16 and the cartridge loading section 18 can be easily reconnected.

On the outer peripheral surface of the cartridge loading section 18, two tongues 36 projecting toward the case back 16 are provided at positions close to the respective connecting arms 32.
Two support pieces 38 are provided on the inner surface of 16 at positions corresponding to the two tongue pieces 36, respectively. As shown in FIG. 4, the tongue piece 36 and the support piece 38 are in contact with each other in the state where the back lid 16 and the cartridge loading portion 18 are connected to each other, and the vertical positions of the cartridge loading portion 18 and the back lid 14 are in contact with each other. The deviation is regulated. Further, on the outer peripheral surface of the cartridge loading section 18, a leaf spring 40 is provided between the two tongue pieces 36.
Is attached. The leaf spring 40 is configured such that when the back lid 16 is opened in a state where the back lid 16 and the cartridge loading portion 18 are connected, the cartridge loading portion 18 causes the inner surface 16 a of the back lid 16 to be opened.
The inner surface 16a of the back cover 16 is configured to be urged so as to be slightly away from.

The film guide 28 forms a slit-shaped insertion passage between the film guide 28 and the pressure plate 24 when the back cover 16 is opened in a state where the back cover 16 and the cartridge loading section 18 are connected, As shown in FIG. 1, when the cartridge 14 is loaded in the cartridge loading section 18, the film leader 44, which is curled and extended from the cartridge 14, is inserted into the insertion passage and extended to guide it into the camera 10. It is configured. In the present embodiment, the film guide 28 is configured to form an insertion passage between the film guide 28 and the pressure plate 24, but the film guide 28 is interposed between the film guide 28 and other insertion passage forming members other than the pressure plate 24. It may be configured to form an insertion passage.

The film guide 28 is configured so as to be housed between the pressure plate 24 and the back surface 12a of the camera body 12 when the back cover 16 is closed, and the camera body 1 is provided at the center thereof. An opening 28a having a size that does not cover the inside of the screen frame 46 formed on the back surface 12a of the above is formed. Then, on the surface of the film guide 28 facing the back cover 16 side, the pair of inner guide rails extending parallel to each other in the left-right direction along the upper edge and the lower edge of the opening 28a. An inner guide rail 52 and a pair of upper and lower outer guide rails 54 extending parallel to each other in the left-right direction are formed at a position slightly outward of the inner guide rail 52 in the vertical direction.

As shown in FIG. 4, the outer guide rail 54 is
When the back cover 16 is closed, it comes into contact with the pressure plate 24 to form a tunnel portion 55 with the pressure plate 24 between the back surface 12a of the camera body 12 and the pressure plate 24. It is configured to regulate the displacement in the vertical direction. On the other hand, the inner guide rail 52 is formed to be lower than the outer guide rail 54, and forms a gap together with the pressure plate 24 in the tunnel portion 55 with the pressure plate 24, and the film is sandwiched in this gap to form a film. It is configured to regulate the displacement in the front-back direction. In addition, reference numeral 56 in FIG.
Is a lens barrel which is attached to the camera body 12 so as to be movable back and forth, and a rubber waterproof seal 58 is provided between the lens barrel 56 and the camera body 12. As described above, in this embodiment, since the inner guide rail 52 is formed on the film guide 28, the size of the opening 28a is smaller than before, and the outer guide rail 54 is formed on the film guide 28. Since it is being used, the film guide
28 does not have an insertion hole for inserting the outer guide rail. Therefore, the rigidity of the film guide 28 is high and the film guide 28 is not easily deformed, and the leader portion 44 of the film is less likely to fall into the opening 28a when the leader portion 44 of the film is loaded. It can be reliably loaded.

In this embodiment, the film guide 28, the inner guide rail 52 and the outer guide rail 54 are integrally formed of a plastic material, but they may be integrally formed by bending from a metal plate material. Good. FIG. 5 shows a second embodiment of the present invention having such a configuration. Figure 5
FIG. 8 is a vertical sectional view of a camera according to a second embodiment of the present invention with a loading lid closed. The same components as those in the first embodiment are designated by the same reference numerals.

The illustrated camera 10A has a film guide 28.
It differs from the first embodiment only in that A, the inner guide rail 52, and the outer guide rail 54 are integrally bent and formed from a metal plate material.

In the first and second embodiments, both the inner guide rail and the outer guide rail are provided on the film guide, but only the inner guide rail is provided as in the third embodiment of the present invention shown in FIG. May be provided on the film guide, or only the outer guide rail may be provided on the film guide as in the fourth embodiment of the present invention shown in FIG.
FIG. 6 is a vertical cross-sectional view of the camera according to the third embodiment of the present invention when the loading lid is closed, and FIG. 7 is a vertical cross-sectional view of the camera according to the fourth embodiment of the present invention when the loading lid is closed. is there.

In the camera 10B shown in FIG. 6, only the inner guide rail 52 is formed by bending a metal plate material integrally with the film guide 28B, and the outer guide rail 54 is formed on the rear surface 12a of the camera body 12 by the camera body 12. It is formed integrally with. Further, the film guide 28B is formed with an insertion hole 28b for inserting the outer guide rail 54.

In the camera 10C shown in FIG. 7, only the outer guide rail 54 is formed integrally with the film guide 28C from a metal plate material, and the inner guide rail 52 is the camera body.
It is formed integrally with the camera body 12 on the back surface of 12a. The opening 28a of the film guide 28C is located on the camera body side 12
It is formed in a size that surrounds the inner guide rail 52 on the side.

Although the embodiments of the present invention have been described above, the DIL type camera of the present invention is not limited to the specific modes of the above embodiments, and various modifications can be made. Of course. For example, in each of the above embodiments,
Although the film leader and the inner guide rail or the outer guide rail are integrally formed, the guide rail may be formed separately from the film guide and attached to the film guide later. Each of the cameras of the above embodiments is a waterproof camera provided with a waterproof seal between the camera body and the lens barrel, and between the camera body and the back cover. However, the present invention is a DIL system other than the waterproof camera. It is also possible to apply to the camera.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a loading lid and a cartridge loading portion of the camera of the first embodiment are separated.

FIG. 3 is a view of the camera body of the camera of the first embodiment in a state in which a cartridge loading section is accommodated, viewed from a loading lid.

FIG. 4 is a vertical sectional view of the camera according to the first embodiment with a loading lid closed.

FIG. 5 is a vertical sectional view of the camera of the second embodiment with the loading lid closed.

FIG. 6 is a longitudinal sectional view of the camera of the third embodiment with the loading lid closed.

FIG. 7 is a vertical cross-sectional view of the camera of the fourth embodiment with the loading lid closed.

FIG. 8 is a perspective view showing a conventional example.

FIG. 9 is a vertical cross-sectional view of a conventional example with a loading lid closed.

[Explanation of symbols]

10,10A, 10B, 10C camera 12 Camera body 14 Patrone 16 case back 18 Patrone loading section 24 Pressure plate 27 Film winding room 28, 28A, 28B, 28C Film guide 28a Opening 28b insertion hole 46 screen frame 52 Inner guide rail 54 Outer guide rail

Claims (7)

(57) [Claims] 1. A camera, which is arranged between a loading lid of a camera and a camera body, is configured to be pulled out from the camera body together with a cartridge loading section in which a cartridge is axially loaded, and is provided on the camera body. A film guide having an opening formed in a size that does not cover the inside of the screen frame is extended to guide the film leader extending from the film cartridge into the camera when the film cartridge is loaded. In the camera arranged as described above, the cartridge loading section is placed in front of the film guide.
A drop-in-loading type camera characterized in that a guide rail for restricting the position of the film is provided on the surface of the film guide facing the loading lid side, which is supported by the camera body . 2. The drop-in-loading type camera according to claim 1, wherein the guide rail is an inner guide rail that restricts displacement of the film in the front-rear direction. 3. The drop-in-loading type camera according to claim 1, wherein the guide rail is an outer guide rail that regulates vertical displacement of the film. 4. The guide rails are an inner guide rail that regulates displacement of the film in the front-rear direction and an outer guide rail that regulates displacement of the film in the up-down direction. 1. The drop-in loading type camera described in 1. 5. The drop-in-loading type camera according to claim 1, wherein the film guide and the guide rail are integrally molded of a plastic material. 6. The drop-in-loading type camera according to claim 1, wherein the film guide and the guide rail are integrally formed by bending a metal plate material. . 7. The film guide according to claim 1, wherein one end of the film guide is pivotally supported by the camera body, and the other end of the film guide is attached with the cartridge loading section. The drop-in loading camera described in any of the above.