JPH08304904A - Reusable disposable-camera - Google Patents

Abstract

PURPOSE: To obtain a reusable disposable-camera where exposed film is replaced to load new one by a photographer himself without spoiling the simple camera- function used in the disposable camera. CONSTITUTION: An aperture part for replacing and loading the film is formed on the back surface part of a camera housing 30, and a back cover 28 for closing the aperture part and the camera housing 30 can be opened/closed through a hinge 29. A housing step part is formed on the camera housing side and a peripheral rising part is formed all over the periphery of the aperture part on the back cover side, and they are fitted to tightly close the housing 30 with the back cover 28, thereby preventing external light from leaking into the inside of the camera housing. A semicolumnar fixed projection 27 is formed on the housing side and a recessed part 26 for housing the projection 27 is formed on the back cover side, and they are meshed with each other so as to fix the back cover 28.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a single-use camera, which is pre-loaded with a film in the manufacturing process of the camera and is sold. The present invention relates to a reusable single-use camera that enables a photographer to take out and exchange a film that has been taken only by taking out a film.

2. Description of the Related Art Conventional simple commercially available cameras have a very simple housing structure made of plastic resin or the like for the purpose of low price, and even an unskilled beginner may make a mistake in operation. 4 (A), because it is required to have a function that can take a picture without fail.
As shown in (B) and (C), an imaging lens 1, a window 2, a shutter button 3, a film winding knob 4, a film counter number window 5, a stroboscopic light emitter 6, a flash lamp 7, and a eyepiece eyepiece window. 8 etc. It has all of the basic functions of a camera, is compactly mounted in a camera housing 10 made of synthetic resin such as plastic, and has the function of opening and closing the back cover used in ordinary cameras. Abolished and simplified. The outer surface of this disposable camera was covered with a paper cover 9 shown in FIG. 4 (C), and the surface of which the colors and patterns were printed was commercially available.

Due to such a simple structure, the camera housing is not a structure in which the photographer can open the back cover to replace the film, but disassemble the camera housing at a specific place such as a dark room in the developing room to remove the film. I had to take it out and develop it.
Therefore, when the photographer finishes shooting one film loaded in the camera, he / she must send the film including the camera itself to the photo lab to request development, and a new photo film is required for subsequent shooting. There was no alternative to buying a disposable camera.

[Problems to be Solved by the Invention] Recently, P
As seen in the enactment of the L Law, the public has a harsh eye on producers, and in addition, there is a strong criticism of disposables due to the problem of municipal waste disposal. Has become a situation in which we must refrain from producing and selling disposable cameras. Therefore, there is a demand for a camera that can be reused by the photographer to exchange and load the film that has been shot without impairing the simple camera function used in the disposable camera.

[Means for Solving the Problems] According to the present invention, an opening for replacing and loading a film is provided on the back surface of a camera housing, and the camera housing and the back cover of the opening can be opened and closed by a hinge. On the camera case side, a case step is provided over the entire circumference of the opening, and on the case back side, a peripheral rising part is provided over the entire circumference.
The camera housing is optically sealed to prevent light leakage from outside light. For fixing the back cover, a semi-cylindrical fixing tool protrusion is attached to the housing side, and a fixing tool provided with a recess for engaging with the semi-cylindrical fixing tool protrusion is attached to the back cover side. Fix your body.

[Embodiment] An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a reusable single-use camera according to an exemplary embodiment of the present invention when a back cover of a camera is opened. FIG. 2 is a partial view of a portion for fixing the back cover of the reusable disposable camera according to the embodiment of the present invention. FIG. 3 is a partial sectional view taken along the line AA ′ of the reusable single-use camera according to the embodiment of the present invention.

As shown in FIG. 1, the reusable disposable camera according to the present invention is based on a conventional disposable camera, has an opening at the back of the camera, and has a back cover 28 for film replacement and loading. The hinge 29 is attached to the camera housing 30 so as to be openable and closable, and the fixture 26 and the fixture projection 27 are used to optically seal and fix.

Since the camera shown in FIG. 1 has a basic structure of a conventional disposable camera, the lens 1, the fiber 2, and the strobe light emitter 6 are not shown, but they are provided on the front surface of the camera housing 30. There is. Other basic functions required for the camera are a shutter button 3 for opening and closing the shutter, a film winding knob 4 for winding the film after shooting one frame at a time, and a remaining film for counting the number of filmed films. A number window 5 for displaying the number, a strobe flash lamp 7, a viewfinder eyepiece window 8 for displaying the photographing range, a film winding roller 22 for winding the photographed film, and a film feeding section 2 for feeding the unphotographed film.
3. The sprocket 24, etc., which meshes with the perforation of the film and sends out one frame at a time, is built into the camera housing 30 made of plastic resin, and sent out to the back lid 28 which is openably and closably attached to the opening. A back cover retainer 25 is attached so that the film is a flat surface and does not hinder the photography.

Since the conventional disposable camera does not have a film exchange function, the camera housing structure can be relatively simple. However, since the camera of the present invention provides a film exchange function, the back cover is It is provided, and it has to be opened and closed so that the film can be taken out / replaced and loaded, so that the structure is complicated.

An opening is provided on the back surface of the camera housing 30,
In order to replace and load the film from this portion, a housing step portion 31 is provided around the opening portion over the entire circumference of the opening as shown in FIGS. 2 and 3, and the peripheral rising portion 3 of the back cover 28 is provided.
2 is fitted into the housing step 31 to prevent outside light from leaking into the camera housing 30. Camera housing 3
The inner surface of 0 and the inner surface of the back cover 28 are matte black to prevent the scattering and reflection of light leakage.

In order to fix the camera housing 30 and the back cover 28, a semi-cylindrical fixing tool protrusion 27 is provided on the camera housing 30 side, and the semi-cylindrical fixing is provided on the back cover 28 side. Back over the tool protrusion 27 and fit into the fixture protrusion 27
There is a fixing tool 26 having a semi-cylindrical concave portion for fixing 8 and both of which are made of resin such as plastic, and use elasticity to overcome the semi-cylindrical fixing projection 27. The back cover 28 is fixed.

In the conventional disposable camera, the outer circumference of the camera is covered with a paper cover 9 so that the appearance is adjusted to enhance the commercial value. In the camera according to the present invention, the back cover 28 is opened and closed to exchange the film. Since it is not possible to decorate the outer periphery with the paper cover 9 because it is loaded, it is necessary to color and decorate the resin itself forming the housing 30 to adjust the appearance and retain the commercial value.

As discussed above, the reusable single-use camera according to the present invention is based on the conventional single-use camera that has been commercially available in the past, and only the rear part is partially modified to suit the application. Therefore, it will not be a major change, the change cost will be small, and the price increase factor is small.

[Effects of the Invention] As described above in detail as the embodiments, the reusable disposable camera according to the present invention has various advantages. Since the back cover of the camera can be freely opened and closed, the photographer himself can exchange and load the film after shooting, so if you have finished shooting the loaded film as before, return it to the laboratory including the camera This saves labor and saves unnecessary expenses such as having to purchase a new disposable camera for shooting.
In addition, since the used camera itself can be reused, it is possible to prevent the generation of dust, which is useful for resource saving, and because it follows the design concept of the conventional disposable camera, it is generally inexpensive and saves money. Become.

[Brief description of drawings]

FIG. 1 is a perspective view of a reusable single-use camera according to an embodiment of the present invention in which a back cover of a camera rear surface is opened.

[Figure 2]

FIG. 3 is a diagram showing an opening / closing portion of a back lid of a reusable single-use camera according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram of a conventional disposable camera.

[Explanation of symbols]

1: Lens 2: Fiber 3: Shutter button 4: Film winding knob 5: Number window 6: Strobe light emitter 7: Flash lamp 8: Fiber eyepiece window 9: Paper cover 10: Camera housing 11: Lens window 12: Strobe window 13: Finder window 14: Shatter window 15: Number window 21: Film rewind knob 22: Film take-up roller 23: Film feeding section 24: Sprockets 25: Back cover retainer 26: Fixture 27: Fixture projection 28: Back cover 29: Hinge 30: Camera case 31: Case step 32: Peripheral rising part

Claims (3)

[Claims] 1. A disposable camera having a minimum number of basic photographing functions required for taking a picture, provided with an opening in the rear of the camera for replacing and loading a film, and an opening which can be opened and closed. A reusable single-use camera, which is equipped with a lid so that the photographed film can be exchanged and loaded by the photographer himself. 2. A casing step portion is provided in the entire periphery of an opening provided on a rear surface of a camera casing, and a peripheral rising portion is similarly provided on a back lid side to be fitted with the casing step portion to seal the casing. The reusable single-use camera according to claim 1, wherein light is prevented from leaking. 3. A semi-cylindrical fixture protrusion is provided on the camera housing side, and is engaged with a fixture having a recessed portion on the back lid side that fits into the semi-cylindrical fixture protrusion, and the back lid is engaged. The reusable single-use camera of claim 1, wherein the reusable single-use camera is fixed to the.