JPH07114081A - Film unit with lens - Google Patents

Abstract

PURPOSE:To miniaturize a film unit with a lens by providing a battery armature for a positive electrode in press-contact with the shoulder part of a positive electrode terminal in a cylindrical dry battery. CONSTITUTION:The shoulder part 11c of the dry battery 11 is constituted of the same member as a positive electrode 11a. The armature 22 for the positive electrode is in press-contact to the shoulder part 11c of the dry battery 11 at its branches:; tip parts 22a. An armature 13 for a negative electrode 13 is in presscontact to a negative electrode 11b. By constituting the armature 22 for the positive electrode in such a way, a gap (d) between the shoulder part 11c of the dry battery 11 and the side wall 24 of a battery chamber is made shorter than a gap between the shoulder part 11C of the dry battery 11 and the side wall of the battery chamber by the height of the positive electrode. Therefore, the dimension of the battery chamber is made short and the our dimension of the entire film unit with a lens can also be reduced. Then, the film unit with a lens more excellent in portability is realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery contact piece of a film unit with a lens, which has a simple camera function and is preloaded with an unexposed film.

[0002]

2. Description of the Related Art As is well known, a film unit with a lens is a film-integrated type camera which allows users to easily take photographs, and is portable because it is mainly purchased and used on the go while traveling. Good miniaturization is required. In response to this request, the compact Konica MiNi, which is a compact camera, has been marketed and has been well received.

[0003]

Although it is desired to be more compact than the market, the basic function of the camera remains unchanged, and the compactness has reached a certain limit. In such a state, the battery occupies a very large space in the components of the film unit with lens. Therefore, it is an object of the present invention to reduce the size of the lens-equipped film unit by reducing the space of the battery chamber.

[0004]

According to the present invention, in the film unit with a lens using a cylindrical dry battery according to the present invention, a battery contact piece for a positive electrode is provided which is in pressure contact with a shoulder portion of a positive electrode terminal of the cylindrical dry battery. This is solved by a characteristic film unit with a lens, and when batteries are arranged vertically, the height direction of the film unit with a lens is reduced.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a view showing the external appearance of a lens-fitted film unit according to the present invention, in which 135 films have been loaded in advance, and after filming, the film remains stored inside without rewinding. It is sent to the lab in the state where it is developed and printed.

An unexposed film used in a film unit with a lens is loaded in a cartridge and is made light tight. Then, the winding shaft on the film winding chamber side is driven to drive the film inside the cartridge. Wind all film into the film winding room. The film is taken up by the user by winding it up each time the photo is taken.
Therefore, in the laboratory, the film that has been photographed can be taken out in the bright room without changing the cartridge.

Further, the taken film can be easily taken out by bending a part of the back cover. Therefore, the function and appearance of the camera are inspected, and the back cover and the defective member are replaced to newly install the film. It can be reused by loading unexposed film.

The cartridge loaded in the film unit with lens of this embodiment is a commercially available cartridge (JIS K752
Unlike 8), a cartridge with an outer diameter of 20.6 mm is used. As a result, the camera can be made extremely thin, excluding the taking lens, and an ultra-thin compact camera is realized.

In the figure, 1 is a taking lens, 2 is a viewfinder, 3 is a strobe light emission window, 4 is a strobe charge display lamp, 5 is a film counter, 6 is a release button, and 7 is a release button.
Is a back cover, and 8 is a cardboard carton on the outer surface of which the product name and simple usage method are displayed.

FIG. 2 is a diagram of a conventional battery chamber.
2A is a perspective view thereof, and FIG. 2B is a vertical sectional view thereof. Normally, one AA battery is used for the film unit with a lens in terms of performance, and it has the largest volume as an internal component together with a strobe capacitor.
Also, since the dimensions of AA dry cells are determined by JIS, it is not possible to freely change the dimensions in design like other mechanical parts, and the configuration and dimensions of the battery chamber in which the AA dry cells are loaded are It directly affects the outer diameter of the film unit with lens. In the figure, 11 is a dry battery, 11a is a positive electrode, and 11b.
Is the negative electrode. Reference numeral 12 denotes a positive electrode contact piece, and 13 denotes a negative electrode contact piece, which are pressed against the positive electrode 11a and the negative electrode 11b of the dry battery 11, respectively. 14 is a side wall of a part of the battery chamber.

FIG. 3 is a view of a battery chamber of one embodiment of the present invention, FIG. 3 (a) is a perspective view thereof, and FIG. 3 (b) is a longitudinal sectional view thereof. Since the shoulder portion 11c of the dry battery 11 is composed of the same member as the positive electrode 11a, the electrode is a positive electrode. Reference numeral 22 denotes a contact piece for the positive electrode, which is pressed into contact with the shoulder portion 11c of the dry battery 11 by a forked end portion 22a. Reference numeral 13 denotes a negative electrode contact piece, which is pressed against the negative electrode 11b as in FIG. 24 is a side wall of a part of the battery chamber.

By constructing the positive electrode contact piece 22 in this manner, the shoulder portion 11c of the dry battery 11 and the side wall of the battery chamber in FIG.
Since the gap d with 24 is shorter than the gap D between the shoulder 11c of the dry battery 11 and the side wall 14 of the battery chamber in FIG. 2 by the dimension of the height h of the positive electrode, the dimension of the battery chamber can be shortened by h and the lens The overall external dimensions of the attached film unit can be shortened by h.

The battery can be applied not only to AA type dry batteries, but also to other types of batteries as long as the shoulder portion and the positive electrode are made of the same member.

Further, it is desirable to provide an escape hole 24a in the side wall 24 of the battery chamber in consideration of the variation in the height h of the positive electrode.

Further, both the positive electrode contact piece 22 and the negative electrode contact piece 13 may have elasticity, or either one may be used.

[0016]

As described above, according to the present invention, the space on the positive electrode side can be made small, and as a result, the space in the battery chamber can be made small, and the outer diameter of the film unit with lens can be made small. A film unit with a good lens can be realized.

[Brief description of drawings]

FIG. 1 is an external view of a film unit with a lens.

FIG. 2 is a view of a conventional battery chamber.

FIG. 3 is a diagram of a battery chamber of the present invention.

[Explanation of symbols]

 11 Dry battery 11a Positive electrode 11b Negative electrode 11c Shoulder 12,22 Positive electrode contact piece 13 Negative electrode contact piece 14,24 Side wall of battery chamber

Front Page Continuation (72) Inventor Kojiro Yoshida 1st Sakura-cho, Hino City, Tokyo Konica Stock Company In-house

Claims (2)

[Claims] 1. A lens-equipped film unit using a cylindrical dry battery, wherein a film contact lens for positive electrode is provided which is in pressure contact with a shoulder portion of a positive electrode terminal of the cylindrical dry battery. 2. The film unit with lens according to claim 1, wherein a hole facing the tip of the positive electrode terminal is formed in the wall surface of the battery chamber.