JPH11344743A - Film integrated type camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a film integrated type camera whose production man-hour, physical distribution man-hour and disassembly and separation man-hour are reduced, where the positional relation of mutual lenses is optically accurately kept and which is easily handled by providing a finder having plural lenses and integrally forming the respective lenses. SOLUTION: The finder 50 using two lenses is provided on the upper side of the photographic frame 19 of a camera main body 2. The respective lenses, that is, an objective lens 29 and an ocular 30 are integrally formed by a coupling part, and the objective lens 29 is attached to the front side and the ocular 30 is attached to the rear side of the finder. The objective lens 29 and the ocular 30 of the finder 50 are arranged on the same optical axis line L1 and integrally formed, whereby the production man-hour, the physical distribution man-hour, and the disassembly and separation man-hour are reduced, the positional relation between the mutual lenses is optically accurately kept and the handling is facilitated. Thus, the finder 50 can be easily and surely assembled in the camera main body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film-integrated camera, and more particularly to a simple film-integrated camera in which a photographic film is loaded in advance by a camera maker and a user can immediately take a picture.

[0002]

2. Description of the Related Art For example, in a film-integrated camera in which a photographic film is loaded in a camera assembling process, a user does not need to perform operations such as loading and rewinding of a photographic film, and the user can immediately take a picture. The operation is easier than a camera where the user puts film. In addition, when the user finishes shooting, the user deposits the film-integrated camera at the lab, disassembles the film-integrated camera at the photo lab, takes out the photographic film, and performs development and simultaneous printing.

[0003] Such a film-integrated camera has two
A finder using two lenses is provided, and these two objective lenses and eyepieces are individually attached to a mounting portion formed integrally with the camera body, a case having a lens mounting portion, or the like.

[0004]

However, since the objective lens and the eyepiece are individually formed plastic lenses, each of them has a manufacturing process, requires a cost of manufacturing distribution, and also requires an assembling process. Optically strict mounting dimensional accuracy is required, and it takes time from production to assembly.

[0005] The collected film-integrated camera is disassembled and classified according to the material. However, it is necessary to separate the lens parts, which increases the number of steps.

Further, in the conventional lens, the objective lens has a larger area than the eyepiece, and when the optical axis of the lens is arranged on the same line, the eyepiece approaches the running portion of the film, which restricts miniaturization. Had become.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and reduces the number of manufacturing steps, distribution steps, and disassembly / separation steps, optically maintains the positional relationship between lenses with high precision, and is easy to handle. It is an object of the present invention to provide a body camera, and to provide a film-integrated camera that can easily be miniaturized while securing a lens area.

[0008]

Means for Solving the Problems In order to solve the above problems and achieve the object, the present invention has the following constitution.

According to a first aspect of the present invention, there is provided a film-integrated camera in which a photographic film is pre-loaded into a camera body, a front cover is assembled from a front side of the camera body, and a rear cover is assembled from a rear side of the camera body. A film-integrated camera comprising a finder having two lenses, wherein each lens is integrally formed. ].

According to the first aspect of the present invention, by integrally forming the two lenses of the finder, the number of manufacturing steps, the number of steps of distribution, and the number of steps of disassembly and separation are reduced, and the positional relationship between the lenses is optically determined. Maintains high accuracy, and is easy to handle, and can be easily and reliably incorporated into the camera body.

According to a second aspect of the present invention, at least one of a second surface and a third surface of the two lenses of the finder is flat, counting from an objective surface.
The film-integrated camera according to the above. ].

According to the second aspect of the present invention, the second
By making at least one of the surface and the third surface a flat surface, it can be integrally molded with a mold having a slide piece structure, and the flat surface may have a draft angle.
Alternatively, it may be the same, but it is preferably in the direction in which the slide piece of the mold is pulled out.

According to a third aspect of the present invention, there is provided an image forming apparatus, wherein the two lenses are constituted by an objective lens and an eyepiece, and the optical axis of the eyepiece is offset from the objective lens. 3. A film-integrated camera according to claim 1. ].

According to the third aspect of the present invention, by arranging the optical axis of the eyepiece with an offset with respect to the objective lens, it is possible to secure a space for arranging the film traveling portion, and to increase the height of the camera. The size can be reduced in the direction.

According to a fourth aspect of the present invention, there is provided a method as described above, wherein the optical axis of the objective lens is offset downward with respect to the optical axis of the eyepiece, and the upper end surfaces of the objective lens and the eyepiece are formed on the inner wall of the upper surface of the camera. The film-integrated camera according to any one of claims 1 to 3, wherein the camera is arranged so as to meet the following. ].

According to the present invention, the optical axis of the objective lens is offset downward with respect to the optical axis of the eyepiece, and the upper end surfaces of the objective lens and the eyepiece are along the inner wall of the upper surface of the camera. With such an arrangement, it is possible to secure an arrangement space for the film running unit, and it is possible to reduce the size in the camera height direction.

According to a fifth aspect of the present invention, there is provided the camera body, wherein a plurality of engaging pieces for regulating the position in the camera left-right direction and the camera front-back direction are provided, and the finder is engaged between the plurality of engaging pieces. The film-integrated camera according to any one of claims 1 to 4, wherein the camera is integrated with the film. ].

According to the fifth aspect of the present invention, the finder is engaged simply and reliably between the plurality of engaging pieces provided on the camera body for regulating the position in the lateral direction of the camera and in the longitudinal direction of the camera. Can be assembled.

The invention according to claim 6 is characterized in that the camera body is provided with a plurality of mounting portions, and the plurality of mounting portions are assembled by engaging mounting arms formed on the finder. The film-integrated camera according to any one of claims 1 to 4. ].

According to the sixth aspect of the present invention, a plurality of mounting portions provided on the camera body are provided, and the mounting arms of the finder are engaged with the plurality of mounting portions, thereby assembling easily and securely. Can be.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a film-integrated camera will be described below in detail with reference to the accompanying drawings. First, an outline of a film-integrated camera will be described with reference to FIGS. FIG. 1 is an exploded perspective view of a camera body, a front cover and a rear cover of a film-integrated camera,
FIG. 2 is a perspective view of a camera body of the film-integrated camera, and FIG. 3 is a longitudinal sectional view of the film-integrated camera.

The film-integrated camera 1 is a simple camera that is provided on the market with photographic film loaded. This camera is loaded with photographic film in the camera assembling process, and is loaded or wound with the user's photographic film. This eliminates the need for an operation such as returning, and the user can immediately take a picture.

The film-integrated camera 1 comprises a camera body 2, a front cover 3, and a rear cover 4, each of which is formed of resin. The photographic film is loaded in the camera body 2 in advance, the front cover 3 is assembled from the front side of the camera body 2, and the rear cover 4 is assembled from the rear side of the camera body 2.

In the center of the front cover 3, there is formed a projection 14 for mounting a photographing unit, a finder window 15 is formed above the projection 14, and a release button 18 is provided above the front cover 3. Is provided.

In the camera body 2, a photographing frame 19 is interposed.
A film storage chamber 20 and a film winding chamber 21 are provided on both sides. A lens holder 22 is mounted on the front side of the shooting frame 19, and a shooting lens 23 is mounted on the lens holder 22. A lens window 24 formed in the front cover 3 is located on the subject side of the photographing lens 23.

A flash circuit board 25 is mounted on the front side of the film storage chamber 20 of the camera body 2, and a flash capacitor 26 and a flash trigger switch 27 are mounted below the flash circuit board 25. The flash condenser 26 is arranged below the photographing frame 19. A flash light emitting section 28 is connected to the upper side of the flash circuit board 25.

Above the shooting frame 19 of the camera body 2, 2
The objective lens 29 and the eyepiece 30 are integrally formed by the connecting portion 51, and the objective lens 29 is attached to the front side, and the eyepiece 30 is attached to the rear side. ing. The objective lens 29 and the eyepiece 30 of the finder 50 are arranged on the same optical axis L1, and by integrally forming these two lenses, the number of manufacturing steps, logistics steps and dismantling steps are reduced, and optically Maintain the relative position of the lenses with high accuracy,
Moreover, handling is easy, and the camera body 2 can be easily and reliably assembled.

A winding knob 31 is rotatably provided above the film winding chamber 21 of the camera body 2, and rotates a cartridge spool loaded in the film winding chamber 21.
Part of the hoisting knob 31 is a hoisting window 3 formed on the rear cover 4.
It protrudes rearward from 2 and can be easily rotated with a fingertip. A reverse winding prevention stopper 33 is formed integrally with the camera body 2, and the reverse winding prevention stopper 33 is adapted to engage with a tooth portion provided on a finger hook of the hoisting knob 31.

A sprocket 34 is provided at the upper center of the photographing frame 19 of the camera body 2 so that the teeth are exposed on the rail surface 35. The sprocket 34 is engaged with a perforation of a photographic film (not shown).
It rotates by winding the frame. The cam 36 rotates in conjunction with the rotation of the sprocket 34, and the film counter 37 engaged with the cam shaft 36a rotates by one frame. The film counter 37 is provided with a display of the number of images to be taken.
Is displayed from the counter window 38.

A release mechanism 39 is provided above the photographing frame 19 of the camera body 2. When the release button 18 of the front cover 3 is pressed, the release mechanism 39 is activated to release the charge of the charge lever 40 and release the shutter blade. 41 is opened and closed to shoot. When the winding operation of the photographic film is performed, the cam 36 is moved through the sprocket 34.
Rotates to move the charge lever 40 to the charge position, winding up is completed, and charging is completed.

FIG. 4 is a longitudinal sectional view of a film-integrated camera. In the film-integrated camera 1 of this embodiment, the members denoted by the same reference numerals as those of the film-integrated camera in FIGS.

On the upper side of the photographing frame 19 of the camera body 2, 2
A finder 50 having a plurality of lenses, the optical axis L2 of the objective lens 29 is offset downward with respect to the optical axis L3 of the eyepiece 30, and the objective lens 29 and the eyepiece 30 are offset.
Are arranged along the inner side wall 3a on the upper surface of the camera. Thus, the objective lens 29
Is offset downward with respect to the optical axis L3 of the eyepiece 30. If the optical axis L2 of the objective lens 29 is not offset downward and the optical axis L3 of the eyepiece 30 is
When the camera height is compared with the case where the camera is arranged coaxially, the camera heights H1 and H2 are obtained, and the optical axis L2
Is offset downward with respect to the optical axis L3 of the eyepiece 30, it is possible to secure an arrangement space for film running,
Moreover, miniaturization in the height direction of the camera becomes possible.

FIG. 5 is a view showing a finder forming apparatus having two lenses. In the molding apparatus of this embodiment, a finder 50 having two lenses is formed by four molds 100 to 103, and a mold 103 is provided with a gate system 110.
Is injected from the resin solution. When the injected resin solution is solidified, the four molds 100 to 103 are respectively moved in the directions of arrows to form a finder 50 having the objective lens 29 and the eyepiece 30. Although the first surface 29a of the objective lens 29 of the finder 50 is formed as a flat surface,
The draft of the mold 100 is formed, and the eyepiece 30
The third surface 30a of the mold 100
Is formed. After the mold 100 is removed in the direction of the arrow, the mold 101 and the mold 102 are removed in the direction of the arrow to form the finder 50.

As described above, the finder 50 can be integrally formed with a mold having a slide piece structure, and the plane of the finder 50 may have a draft angle, and the gradient is opposite on each surface or the same. However, it does not matter, but it is preferable to set the direction in which the slide piece of the mold is extracted.

FIG. 6 is a view showing a finder having two lenses. In the viewfinder 50 of the embodiment shown in FIG. 6A, the side surfaces of the objective lens 29 and the eyepiece 30 are integrally formed by a connecting portion 51. The viewfinder 50 of the embodiment shown in FIG. Although the upper surface of the lens 29 and the eyepiece 30 are formed integrally by the connecting portion 51, the lower surface may be formed integrally by the connecting portion 51, and these connecting positions are determined according to the attachment to the camera body. It is appropriately selected.

FIG. 7 is a view showing a finder having two lenses. In the viewfinder 50 of the embodiment shown in FIGS. 7A and 7B, the upper surfaces of the objective lens 29 and the eyepiece 30 are integrally formed by the connecting portion 51, and the first surface 29 a of the objective lens 29 and the eyepiece are formed. Third surface 30 of lens 30
a is formed in a plane, but in the embodiment of FIG. 7A, the eyepiece 3 is positioned with respect to the optical axis L2 of the objective lens 29.
The optical axis L3 of 0 is arranged offset, and in the embodiment of FIG. 7B, the objective lens 29 and the eyepiece 30 are arranged on the same optical axis L1. FIGS. 7A and 7
The finder 50 of the embodiment (b) is appropriately selected according to the attachment to the camera body.

FIG. 8 is a view showing the mounting of a finder having two lenses. In the viewfinder 50 of the embodiment shown in FIG. 8A, the objective lens 29 is engaged with the locking pieces 200 and 201 of the camera body 2, and the eyepiece 30 is engaged with the locking piece 202 of the camera body 2. Will be retained. The position of the viewfinder 50 in the left-right direction is controlled by locking pieces 200 and 201 that hold both sides of the objective lens 29, and the position of the viewfinder 50 in the front-rear direction is controlled by a member that holds the front side of the objective lens 29. Stop piece 200 and eyepiece 3
This is performed by a locking piece 202 that holds the rear side of the zero.

As described above, the viewfinder 5 is provided between the plurality of engaging pieces 200, 201, and 202 provided on the camera body 2 for restricting the position in the camera left-right direction and the camera front-back direction.
It is possible to assemble easily and reliably by engaging 0 from above.

The finder 5 according to the embodiment shown in FIG.
Reference numeral 0 indicates that the objective lens 29 is engaged with the mounting portion 210 of the camera body 2, and the mounting arms 52 formed on both sides of the connecting portion 51 are engaged with and held by the mounting portion 211 of the camera body 2. A pin 211a is formed on the mounting portion 211, and the mounting arm portion 52
Is formed with an engagement hole 52a, and the pin 211a is formed with an engagement hole 5a.
2a is engaged and attached.

[0040]

As described above, according to the first aspect of the present invention, by integrally forming the two lenses of the finder, the number of manufacturing steps, the number of steps for distribution, and the number of steps for disassembly and separation can be reduced, and the lenses can be optically connected to each other. Is maintained with high precision, and is easy to handle, and can be easily and reliably incorporated into the camera body.

According to the second aspect of the present invention, at least one of the second and third surfaces of the two lenses of the finder is flattened from the object surface, so that the two lenses are integrally formed with a mold having a slide piece structure. be able to.

According to the third aspect of the present invention, by disposing the optical axis of the eyepiece with respect to the objective lens,
It is possible to secure a space for arranging the film running section, and it is possible to reduce the size in the camera height direction.

According to the fourth aspect of the invention, the optical axis of the objective lens is offset downward with respect to the optical axis of the eyepiece, and the upper ends of the objective lens and the eyepiece are arranged along the inner side wall of the upper surface of the camera. By doing so, it is possible to secure a space for arranging the film running unit, and it is possible to reduce the size in the camera height direction.

According to the fifth aspect of the present invention, it is possible to easily and surely assemble the camera by engaging the finder between a plurality of engaging pieces provided on the camera body for regulating the position in the lateral direction of the camera and in the longitudinal direction of the camera. Can be.

According to the sixth aspect of the present invention, a plurality of mounting portions provided on the camera body are provided, and the mounting arms of the finder are engaged with the plurality of mounting portions, whereby the camera can be easily and reliably assembled.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a camera body, a front cover, and a rear cover of a film-integrated camera.

FIG. 2 is a perspective view of a camera body of the film-integrated camera.

FIG. 3 is a vertical sectional view of the film-integrated camera.

FIG. 4 is a longitudinal sectional view of the film-integrated camera.

FIG. 5 is a view showing a finder forming apparatus having two lenses.

FIG. 6 is a diagram showing a finder having two lenses.

FIG. 7 is a diagram showing a finder having two lenses.

FIG. 8 is a diagram showing attachment of a finder having two lenses.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Film integrated camera 2 Camera body 3 Front cover 4 Rear cover 50 Viewfinder

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Yaichi Iijima 1 Sakuracho, Hino-shi, Tokyo Konica Corporation (72) Inventor Kazuo Todo 1 Konica Corporation, Sakura-cho Hino-shi, Tokyo

Claims (6)

[Claims] 1. A photographic film is loaded in a camera body in advance,
In the film-integrated camera in which the front cover is assembled from the front side of the camera body and the rear cover is assembled from the rear side of the camera body, a finder having two lenses is provided, and each of the lenses is integrally formed. Characteristic film integrated camera. 2. A film-integrated camera according to claim 1, wherein at least one of a second surface and a third surface of the two lenses of the finder is a flat surface counted from an object surface. 3. The apparatus according to claim 1, wherein the two lenses are constituted by an objective lens and an eyepiece, and the optical axis of the eyepiece is offset from the objective lens. Film integrated camera. 4. The optical axis of the objective lens is offset downward with respect to the optical axis of the eyepiece, and the upper ends of the objective lens and the eyepiece are arranged along the inner wall of the upper surface of the camera. The film-integrated camera according to any one of claims 1 to 3, wherein: 5. A camera body comprising a plurality of engaging pieces for regulating a position in a lateral direction of the camera and a longitudinal direction of the camera.
The film-integrated camera according to any one of claims 1 to 4, wherein the viewfinder is engaged between the plurality of engagement pieces and assembled. 6. A camera body comprising: a plurality of attachment portions;
The film-integrated camera according to any one of claims 1 to 4, wherein the plurality of mounting portions are assembled by engaging mounting arms formed on the finder.