JPH02154244A - Camera - Google Patents

Abstract

PURPOSE:To design a camera thinner than the barrel diameter of a cartridge by using a part of the cartridge as the outer frame of a camera main body. CONSTITUTION:When the cartridge 4 is set on the cartridge loading part 3 of the camera main body 1, a film drawing port is perfectly light-shielded by a light shielding member 10 for shielding the corner part of the outer wall 2a of an exposing frame 2 and a wall 2b which is extended from the front wall of the main body 1 so as to intersect orthogonally with the outer wall 2a and by the light shielding member 11 on the leading edge part of a back lid 12. Under such a constitution as described above, the thickness of the camera main body is independent of the barrel diameter of the cartridge. Therefore even if the cartridge houses a 35mm-film, the camera main body is designed in such a manner that its thickness is thinner than the cartridge barrel diameter.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camera that utilizes the light-shielding performance of the cartridge itself.

[Conventional technology]

-a, many cameras are designed to use roll film stored in a cartridge called the J135 type.

[Problem to be solved by the invention]

However, this type of patrone has a trunk diameter of 25 m.
Since it is relatively thick, it was not possible to make the camera thinner than the body diameter of the cartridge, as long as this type of cartridge was to be used.

In order to solve the above-mentioned problems, it is an object of the present invention to provide a camera that can be designed as thin as the body diameter of a cartridge.

[Means to solve the problem]

In order to achieve the above object, the present invention uses a part of the cartridge as the outer frame of the camera body, so that the thickness of the camera body is not affected by the diameter of the cartridge.

(Embodiments) Next, the present invention will be described based on embodiments shown in the accompanying drawings.

In the figure, 1 is a camera body, 2 is an exposure frame, and 3 is a cartridge mounting section. This cartridge attachment part 3 is 35I
A holder for supporting caps 4a and 4b of a 135 type cartridge 4 storing an Il film is provided with a stand 6 and a holding plate 7 so that the axis of a spool 5 is vertical.

The receiver base 6 extends from the main body 1, and has a flat recess 6a deep enough to sink the lower cap 4a of the cartridge 4 on its upper surface, and a spool 5 in the center of the recess 6a.
A groove 6b into which a boss (long boss) 5a loosely fits is provided. This support is not limited to the above structure as long as the stand 6 can support the lower cap 4a of the cartridge 4 so that the spool 5 can rotate.

The marking press plate 7 is attached to the camera body 1 via a hinge portion 7', and is urged to rotate downward by a spring (not shown). This presser plate 7 is formed in a shape that can cover the upper cap 4b of the cartridge 4, and has a hole 1371.7a on the upper surface through which the shaft rod 8a of the rewinding knob 8 passes, and a through hole 7a.
A concentric recess 7b centered at is provided. This recess 7b is for stabilizing the rewind knob 8.

A ratchet 8b is provided on the shaft rod 8a of the rewinding knob 8. This is for engaging a reversal prevention pawl (not shown) provided inside the presser foot 7. Note that 9 is a button for disengaging the reversal prevention pawl during rewinding.

10 is an outer wall 2a of the exposure frame 2 facing the cartridge attachment part 3
and a wall 2b extending from the front wall of the main body 1 so as to be perpendicular to the outer wall 2a. This is in close contact with the body surface 4c of the cartridge 4 and blocks external light entering the film outlet 4d from the front side of the camera body 1. Reference numeral 11 denotes a light shielding member similar to the above described provided on the inner surface of the tip of the back cover 12, and when the lid is closed, it comes into close contact with the outer surface of the film outlet 4d to block external light from the rear side of the camera body 1. do.

13 is a hook member that holds the back cover 12 in a closed state;
The hook member 13 is provided on the upper and lower edges of the back cover 12, and is inserted through a groove 14 provided in the camera body l, and is inserted into the internal stopper (
(not shown). 15 is a knob for unlocking when opening the back cover 12, 16
1 is a film winding wheel, 17 is a winding knob, and 1 is a sprocket. The sprocket 18 functions to operate a film frame number counter and to charge the shutter. 19 is a finder.

Although not specifically explained in the above embodiment, it goes without saying that the minimum mechanism required for photographing is incorporated within the camera body l.

Further, although the 135 type cartridge is shown above, it may be molded entirely of synthetic resin or other types.

To set the cartridge 4 in the cartridge loading section 3 of the camera body l of the above embodiment, first open the back cover 12 of the camera body 1, and then move the presser plate 7 from the hinge section 7a against the spring to the second position. Stand it up as shown by the two-dot chain line in the figure. Next, the long boss 5a of the spool 5 of the cartridge 4 is fitted into the groove 6b provided in the center of the flattened recess 6a of the receiver 6.

Next, the presser foot 7 is pressed against the cap 4b of the cartridge 4 with spring force, and the shaft rod 8a of the rewinding knob 8 is inserted through the through hole 7a on the top surface.
is inserted and connected to the shaft end of the spool 5. This connection can be confirmed by the fact that the rewind knob 8 is seated within the recess 7b.

Next, remove the film F from the film outlet of the cartridge 4.
After pulling out the tip of the winding knob 2 and connecting it to the winding wheel by straddling the exposure frame 2, wind up the winding knob 2 in a predetermined direction.
Close.

The cartridge 4 set in the cartridge mounting part 3 as described above is attached to a light shielding member 1o at a part of the corner between the outer wall 2a of the exposure frame 2 and the wall 2b extending from the front wall of the main body 1 perpendicularly to the outer wall 2a. The film outlet is completely shielded from light by the light shielding member 11 at the tip of the back 1112.

After that, it is only necessary to take pictures as prescribed. After shooting a predetermined number of frames, in order to take out the cartridge 4, use the rewind knob to rewind the photographic film into the cartridge.
The loading operation described above may be reversed.

[Effects of the Invention] As described above, this invention is characterized in that a part of the cartridge is used as the outer frame of the camera body, so the thickness of the camera body is not affected by the diameter of the cartridge, and therefore the cartridge is Even when storing 35III film, the camera body can be designed to be as thin as the body diameter of the cartridge. In addition, since the light-shielding performance of the cartridge itself is utilized, the camera itself can be extremely simplified and can be generally provided at a low cost, which brings about various excellent effects.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of the camera of the present invention, FIG. 2 is a cross-sectional view of the cartridge attachment section, and FIG. 3 is a plan sectional view of the cartridge attachment state. 1--Camera body 2--Exposure frame 3-Patrone attachment part 4-Patrone 5-Spool 6--Receiver is stand 7--Presser foot 8-Rewind knob

Claims (1)

[Claims] A camera characterized by using a part of the cartridge as the outer frame of the camera body.