JPH06308591A - Film unit with lens and camera - Google Patents

Abstract

PURPOSE:To obtain a film unit with a lens used for three sizes of a standard, a panorama and high vision and a camera by providing projections in two positions except the standard, in accordance with a photographic picture frame size and pressing the projections so as to contact with a film at the time of winding it, in accordance with the selection of a special size. CONSTITUTION:Guiding pins 46 are provided on the left and right and a pressing button 44 is guided by the guiding pins 46 and pressed by a leaf spring 47, to be always pushed upward and be kept in standby state in a stopping position by a flange 46C. An interval between both guiding pins 46 is 13mm and the pressing button 44 is depressed at the time of feeding one picture of the film, before photographing, to generate pressure fogging on a film surface, so that 135 type film has 38mm length in the feeding direction of the standard size and simultaneously, the picture frame of 13X36mm panoramic size can be constituted. Moreover, in the adjacent relation to the pressing button 44 of this size, a pressing button 45 for the high vision size is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film unit with a lens or a camera, and a film unit with a lens and a camera in which a screen size is selected at the time of photographing and the frame line is recorded on a negative screen.

[0002]

2. Description of the Related Art Conventional cameras for switching between standard, panoramic, and high-definition sizes have been designed to switch between panoramic size and high-definition size. Has decided the screen size.

Further, the film unit with a lens is not available for standard, panoramic, and high-definition sizes, but is provided for each size.

[0004]

In the above-mentioned three-size combined type camera, a light-shielding member is required for each size of the image frame, and the mechanism for inserting and removing the light-shielding member is complicated, and the number of parts, size, and cost are unfavorably increased.

Further, when a part of the screen is shielded by the light shielding member, the light shielded portion is also finished without transparency, which is inconvenient because the screen size in the under scene is unknown.

An object of the present invention is to provide a film unit with a lens and a camera for three sizes, which solves the above-mentioned conventional problems.

[0007]

This object is achieved by the following technical means a or b.

(A) Protrusions are provided on the inner surface of the back cover of the film unit with a lens at positions corresponding to the vertical dimension of the photographing screen size, standard, panorama, and high-definition, at two positions other than the standard to provide protrusions. Other than two special sizes other than the above, when the film is wound for shooting, the projection is brought into pressure contact with the film to record a shooting screen frame line on the negative by pressure fogging. Film unit with lens.

(B) Protrusions are provided at two positions other than the standard in accordance with the three sizes of standard, panorama, and high-definition in the position corresponding to the vertical dimension of the photographing screen size on the inner surface of the back cover of the camera, and the protrusions other than the standard are used. Achieved by a camera characterized in that the projection screen is pressed against the film for filming for shooting in accordance with the selection of any one of the four special sizes, and the shooting screen frame line is recorded on the negative by pressure fog. To be done.

[0010]

1 is a perspective view of a spool and a film of FIG. 1, a perspective view of a film cartridge of FIG. 2, a sectional view of a film unit with a lens of FIG. 3, and a perspective view of the unit of FIGS. This will be described with reference to FIGS. 7A and 7B, a plan view of the image-developed image frame in FIGS. 7A and 7B, and FIGS.

The spool 1 for non-adhesive paper has a flange 2 concentrically provided on both sides of a winding shaft 13, and a long hub 11 and a short hub concentric to the outside.
12 is provided, a slit opening 3 is provided in the center of the winding shaft 13, a pair of locking claws 6 are provided substantially symmetrically on one surface of the slit opening, and the other surface of the slit opening is formed. Guide claws 7 are provided corresponding to the central portions of the pair of locking claws 6. A locking hole 5 is provided in the terminal portion 4b of the film 4, and the terminal portion 4b is inserted from the slit 3 while being pressed by the guide claws 7 and finally the film 4 is pulled during winding. As a result, the locking hole 5 is engaged with the engaging groove of the locking claw 6, and locking is performed while maintaining a complete retaining state. At the beginning of winding, the terminal portion 4b is folded back in close contact with the outer surface 9 at the end of the slit opening 3, and the film 4 is further wound around the outer peripheral surface of the winding shaft 13 to form a scroll.

This scroll has a body 21 as shown in FIG.
And the tongue end 4a of the film 4 is installed in the cartridge 20 which is composed of the caps 25 on both sides, and is brought out from the outlet of the cartridge. The commercially available 135-type Patrone film is shipped in such a state, but when it is shipped as the lens-equipped film unit 30, as shown in the sectional view of FIG. Inside, the front cover 34 and the back cover 41 are put, and the scroll 4S is formed on the film chamber 35 side while keeping the light-shielding state.
The film is empty in the Patrone 20. However, the film terminal portion 4b is still hooked on the locking claw 6 of the slit opening 3 of the spool 1. The film of the Patrone 20 is wound up every time it is taken.

A portion of the body frame (case) 32 where the film passage is formed by 32S or 32P at the left and right edges forming the aperture of the exposure frame is shown in FIG. , YY sectional view is shown in FIG.

First, FIG. 8 will be described. The edge portion 32S is provided with both-side transport guide surfaces 32D of the film and a convex portion 32A inside thereof, and the convex portion is larger than the guide surface 32D.
For 32A, the amount indicated by d is about 0.5 mm lower. The film which is normally run and conveyed is in contact with the guide surfaces 32D on both sides thereof, but is not in contact with the convex portion 32A.

The body frame (case) 32 is fixed by the back cover 41 with its mating surface 41E aligned with the mating surface 32E of the body frame 32. The guide surfaces 41D on both sides are the guide surfaces.
Together with 32D, it forms a tunnel-shaped film transport surface.

Corresponding to the convex portions 32A, guide pins 46 are provided on the back cover 41 symmetrically across the center line of the film with a distance of 13 mm in the width direction.
A is provided at the front end, and a flange 46C is provided to prevent it from coming off, and it is slidably fitted in the hole of the back cover 41, and is fitted in the stop hole of the push button 44 at the stepped portion of the shaft portion, and the rear end is caulked. The portion 46B is expanded and fixed by caulking.

The guide pins 46 are provided on the left and right, and a leaf spring 47 is dropped in the recess 41A of the back cover between the guide pins. The pressing button 44 is constantly pushed upward by being guided by both guide pins 46 and urged by the leaf spring 47, and is made to stand by at the stop position by the flange 46C.

The distance between these two guide pins is 13 mm, and this push button is used for feeding one screen of film before photographing.
By pressing 44, pressure fogging occurs on the film surface, and it is possible to configure a 135 type film with a standard length of 38 mm in the feeding direction and a panoramic size of 13 × 36 mm. Further, in order to completely shield light, a flexible black sheet is covered as a light shielding film 44A on the upper portion of the push button 44, and the periphery thereof is covered with the lid 41.
It is fixed tightly on top.

A push button 45 for high-definition size is provided adjacent to the push button 44 of this size, as shown in the perspective view of FIG.

A sectional view of this is shown in FIG. The distance between both guide pins 46 is 20mm compared to the former 13mm
The image frame for the high-definition size of 20 x 36 mm is configured. Along with this, the pressing button 45, the leaf spring 49, and the light-shielding film 45A are slightly larger, but the other features are almost the same.

A plan view of FIG. 7 shows a state in which a pressure fog line is provided as a size of an image frame with respect to the standard size of the panorama size and the high-definition size to divide the image frame.

The above is an explanation of what is shown in the perspective view of FIG. 4 and the sectional views of FIGS. 8 and 9. This is the pressing button on the back lid 41 of the portion 32S on the film storing side of the sectional view of FIG. 44, 45
Each of them is equipped with a pressing fog line on the film that is fed out when the film that has been filmed is taken up in the Patrone 20 before filming the screen, and then the filming is performed for the set image frame. It was done like this.

On the other hand, the one shown in the perspective view of FIG.
The press buttons 44 and 45 are on the winding side with a cartridge, as shown in FIG.
It is provided at the position 32P shown in Fig. 7 and the press-fogging image frame line shown in Fig. 7 is inserted when the film having been photographed is wound in the patrone after the photographing is completed, and this point is largely different.

The one shown in FIG. 6 has the functions described above at the 32S position.
It is provided at both the 32P position, and the image framing can be done both before and after shooting one screen.

Of course, when photographing a standard size image, it is sufficient to operate without pressing the push button. Further, the pressing of the pressing button 44 or 45 can be performed by operating the cam or the link in conjunction with the film winding knob shown in FIG. 4, and the operability is significantly improved.

In the above description, the standard size, panorama and high definition are used in combination, but only one size other than the standard size may be used. In this case, the back side as shown in FIG. The shape of the lid 41 has a recess 42 and a protrusion 43.
Is provided on the inner surface of the back cover, and the scoring operation of the image frame can be performed only by pushing the back cover at that portion by hand. Also, it is of course possible to incorporate an arbitrary size other than the panorama or high definition.

Further, although the embodiments of the present invention have been described in the lens-fitted film unit, it is obvious that the present invention can be applied to an ordinary camera using a 135 type film.

[0028]

According to the present invention, the image frame of each photographing screen can be easily configured without providing a light shielding member for switching the image frame configuration inside the camera to complicate the structure and increase the space and cost. It became possible to do.

In addition, if only the pressure-covered line is inserted and an image frame is applied in this way, it is possible to shoot an under-scene.
Therefore, even when the light-shielding portion outside the shooting frame is transparent, it is very easy to determine which screen size was used for shooting.

[Brief description of drawings]

FIG. 1 is a perspective view of a 135 type spool and film.

FIG. 2 is a perspective view of a cartridge film.

FIG. 3 is a cross-sectional view of an embodiment of a film unit with a lens of the present invention.

FIG. 4 is a perspective view of the first embodiment of the present invention.

FIG. 5 is a perspective view of a second embodiment of the present invention.

FIG. 6 is a perspective view of a third embodiment of the present invention.

FIG. 7 is a plan view of various image frames of a developed film.

FIG. 8 is a cross-sectional view of an image frame forming pressing portion.

FIG. 9 is a cross-sectional view of an image frame forming pressing portion.

FIG. 10 is a sectional view of another embodiment of the lens-fitted film unit of the present invention.

[Explanation of symbols]

 1 Spool 4 Film 20 Patrone 30 Film unit with lens 31 Lens 32 Frame (Case) 32A Convex part 32B Mating surface 32D Guide surface 32E Mating surface 32S Film stock side of both sides of aperture 32P Apertone side of both sides of aperture 34 Front cover 41 Back cover 41A Recess 41B Back cover inner surface Ceiling 41C Counterbore 41D Guide surface 41E Mating surface 44 Push button 45 Push button 46 Guide pin 46A Push terminal 46B Caulking portion 46C Flange 47 Spring 49 Spring

Claims (2)

[Claims] 1. Excluding the standard according to the three sizes of standard, panorama, and high-definition in the position corresponding to the vertical dimension of the shooting screen size on the inner surface of the back cover of the film unit with lens.
Protrusions are provided at one position, and according to the selection of any of two special sizes other than the standard size, the protrusions are pressed against the film during film winding for photographing, and the frame of the photographing screen is framed on the negative by pressure fogging. A film unit with a lens, which records. 2. Protrusions are provided at two positions other than the standard according to the three sizes of standard, panorama, and high-definition in the position corresponding to the vertical dimension of the shooting screen size on the inner surface of the back cover of the camera,
According to the selection of any of two special sizes other than the standard, when the film is wound for shooting, the projection is pressed against the film to record a shooting screen frame line on the negative by pressure fogging. A camera to do.