JPH05341447A - Film unit with lens - Google Patents

Abstract

PURPOSE:To obtain an inexpensive finder mechanism by which a photographing range can be confirmed as for a film unit with a lens provided with the switching mechanism of photographic picture size. CONSTITUTION:A unit main body 2 is mainly molded by plastic. Besides, the whole thereof is covered with a packing body 3 and covered with a water-proofing transparent laminated film 4 besides. The film 4 is previously tightly stuck on the surface of the packing body 3 and the main body 2 is packed by it together with the packing body 3. The part of a finder window 8 provided on the front surface of the film unit with a lens is also covered with the film 4 and two index lines 10 by which the photographing range of a panoramic photographing time can be confirmed are printed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a field frame of a film unit with a lens covered with a transparent cover.

[0002]

2. Description of the Related Art A film unit with a lens, "Shakenrun Hi" (trade name), which has a built-in film in advance in a unit body with a simple photographing mechanism so that a photograph can be taken easily at any time, is from the applicant. Manufactured and sold,
Widely used. This lens-fitted photo film unit has a very simple structure as known from Japanese Patent Publication No. 2-332615, and after photography, the DPE can be requested for each film unit as in the case of the conventional photo film. ing.

In these film units with lenses,
An unexposed film pulled out from the cartridge between the main body for storing the film and the back cover is spread to the exposure position between the film roll chamber and the cartridge chamber. When the unexposed film that has been pulled out in advance in the film unit and stored in a roll is exposed, it is taken up in the patrone after each shooting, and when it is finished shooting all frames, it is completely stored in the patrone. Can be stored in.

By the way, in order to enhance the waterproofness of the lens-fitted film unit, a technique of further covering the unit body covered with a paper box with a waterproof cover is disclosed in Japanese Utility Model Laid-Open No. 3-16150.
It is described in Japanese Patent Publication No. In addition, a thin transparent film that covers the entire lens-fitted film unit is commercially available to prevent water and sand from entering the unit body at the seaside. In such a film unit with a lens, the viewfinder window portion provided on the front surface of the film unit is also covered with the transparent film, so that the subject is framed through the transparent film.

On the other hand, in recent years, a camera using a 35 mm wide photographic film has a screen size of 24 m per film.
A size of m × 36 mm is set as a standard size, and a camera capable of shooting a screen size other than the standard size by various mechanisms is used. Among them, the standard size of 24 mm
The 13 mm x 36 mm screen size obtained by cutting the top and bottom of the x 36 mm film screen by 5.5 mm each is called a panorama size, and it is popular because it produces powerful images. Therefore, select a desired screen size from multiple screen sizes with one camera so that you can enjoy a variety of shooting, not a dedicated camera that shoots only the standard size or other screen sizes. A camera that can take a picture is proposed.

In this type of camera, a screen size switching mechanism is built in the camera in advance,
It is possible to shoot images with different screen sizes on a single film. For example, the actual Kaihei 3-122435
In the screen switching mechanism described in the publication, a member for covering a part of the screen is provided on the camera aperture in order to switch the screen size between the standard size and the panoramic size, and this member is moved in and out within the exposure range in conjunction with the switching knob. I am trying to do it. It has also been proposed to use such a screen size switching mechanism in a lens-fitted film unit to capture different images.

[0007]

However, the finder of the film unit with a lens is often transparent in order to reduce the cost, and a general user can adjust the shooting range in standard shooting and panoramic shooting in his head. There was a problem that it was difficult to decide. It is also conceivable to switch the viewfinder field frame in conjunction with the switching of the filming screen frame of the film, but this will increase the cost and the lens-fitted film unit cannot be provided at low cost. Therefore, an Arbata finder is effective, in which a panoramic field frame is always displayed on the finder, but this is also more expensive than the plain finder.

The present invention has been made in consideration of the above-mentioned problems of the prior art, and in a lens-fitted film unit having a function of switching the size of a photographing screen, the photographing range can be easily determined by an inexpensive finder mechanism. An object of the present invention is to provide a film unit with a lens as described above.

[0009]

In order to achieve the above object, an index for confirming a panoramic view frame is provided at a portion corresponding to a viewfinder window of a transparent cover which further covers a unit body which is entirely covered with a paper box. It is a thing.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1 showing an external view of a lens-fitted film unit according to the present invention, a unit main body 2 is mainly made of plastic and is entirely covered with a packaging body 3 and is further covered with a waterproof transparent laminated film 4. The wrapping body 3 is for making the appearance of the lens-fitted film unit clean, and a paper box or the like having an outer surface printed with operational instructions is used. The packaging body 3 includes a photographing lens 5, a shutter button 6, and a winding knob 7 (see FIG. 2).
), A viewfinder window 8 and a display window 9 through which the number of remaining films can be confirmed are exposed, and photographing can be performed through these holes.

The laminate film 4 is tightly adhered to the surface of the package 3 which has been developed in advance, and the unit body 2 is packaged together with the package 3. Since the laminate film 4 has a certain degree of flexibility, the shutter button 6 can be operated via the laminate film 4. An opening is provided at a position corresponding to the taking lens 5 of the laminate film 4, a position corresponding to an operating portion of the winding knob 7, and the like so that the shooting is not affected. The finder window 8 provided on the front surface of the lens-fitted film unit is also covered with the transparent laminate film 4, and two index lines 10 are printed to confirm the shooting range during panoramic shooting.

The unit main body 2 covered with the package 3 and the laminated film 4 has a main body base 1 as shown in FIG.
2, a front cover 13 and a rear cover 14. The film 15 with a cartridge is a cartridge 17 for storing the 35 mm wide film 16 in a light-shielded state at the time of assembling.
And a roll-shaped film 16 pulled out from the cartridge 17 are the exposure frame 2 provided on the main body base 12.
0 (see FIG. 3) is inserted into the cartridge chamber 18 and the film roll chamber 19, respectively. A well-known exposure unit 40 is provided on the front surface of the exposure frame 20, and exposes the film 16 with the imaging light flux incident from the imaging lens 5.

The film 1 is provided on the upper portion of the cartridge chamber 18.
There is provided a winding knob 7 provided with a fork, which is fixed to the end portion of 6 and engages with a spool 17a rotatably housed in the cartridge 17. Winding knob 7
2 rotates the spool 17a in a direction in which the photographed film 16 is drawn into the cartridge 17 by rotating in the direction of the arrow in FIG. A tooth row 7a is formed on the outer circumference of the winding knob 7, and a check claw 21 made of a leaf spring is engaged with the tooth row 7a. This check claw 2
1 is for preventing the rewinding of the winding knob 7.

A finder eyepiece 22 is provided on the rear cover 14 at a position corresponding to the finder window 8. Further, as shown in FIG. 3, a knob 23 for switching the photographing screen size is provided so as to be rotatable around a shaft 24. The gear 25 is coaxial with the knob 23 and the gear 25 has a rear cover 1.
4 is provided inside and meshes with a gear 26 provided on the main body base 12. A gear 27 is further provided coaxially below the gear 26 and rotates integrally with the gear 26.

The exposure frame 20 provided on the main body base 12 is provided with screen regulating members 30a and 30b which can be freely put in and taken out from the photographing screen of the film 16, and the photographing screen width in the direction perpendicular to the feeding direction of the film 16 is provided. Can be narrowed. The restricting members 30a and 30b have bent pieces 31a and 31b, respectively, which are bent upward at the left ends of the restricting members 30a and 30b.
A rack that meshes with is provided. The knob 24 is shown in FIG.
When the gear 25 is rotated in the arrow A direction, the gear 25 also rotates in the arrow B direction. A gear 26 meshes with the gear 25,
With the rotation of the gear 25 in the arrow B direction, the gear 27 rotates in the arrow C direction, and at the same time, the gear 27 rotates in the same direction as the gear 26.

The rack of the bent pieces 31a and 31b is a gear 27.
As the gear 27 rotates, the bent piece 31a moves downward and the bent piece 31b moves upward. In the exposure frame 20, the regulating members 30a and 30b move so as to narrow the vertical width of the photographing screen as the bending pieces 31a and 31b move in the vertical direction. Similarly, when the knob 23 is rotated in the direction opposite to the arrow A direction, the gear 25,
The restricting members 30a and 30b move through 26 and 27 and the bent pieces 31a and 31b so as to widen the vertical width of the photographing screen. The standard photographing mode and the panoramic photographing mode can be arbitrarily selected by adjusting the index 23a of the knob 23 to the standard photographing position display "H" 28 and the panoramic photographing position display "P" 29, respectively.

A lid 32 is provided at a portion of the rear cover 14 corresponding to the bottom surface of the cartridge chamber 18 so that the cartridge 17 with the film 16 already taken can be easily taken out. Further, a hole is provided in the portion of the package 3 and the laminate film 4 corresponding to the shaft 24 of the knob 23, and the operation thereof is not hindered.

The operation of the lens-fitted film unit configured as described above will be described. When the photographer turns the winding knob 7 and confirms that the shutter is charged, he / she looks through the viewfinder eyepiece 22 and frames the subject through the viewfinder window 8. The front side of the finder window 8 is covered with the laminate film 4, but the visual field frame for standard photography can be confirmed through the transparent portion other than the index line 10. When the user wants to shoot in the standard shooting mode, the knob 23 provided on the back surface of the lens-fitted film unit is turned to the standard shooting position display "H" 28 in the opposite direction of the arrow A in FIG. , 30
The screen size is determined by moving b so that the vertical width of the shooting screen is widened.

The shutter button 6 is attached to the laminate film 4
When it is pressed via, the shutter blades of the well-known exposure unit 40 provided on the main body base 12 are opened and closed to expose the photographing light flux incident from the photographing lens 5 onto the film 16.
At this time, since the regulating members 30a and 30b are retracted in the exposure frame 20 in the vertical direction, the incident photographing light flux is exposed.
The entire exposure screen defined by 0 is exposed.

When one photographing is completed, the photographer turns the winding knob 7 again to wind the photographed film 16 into the cartridge 17 and at the same time, charges the shutter again for the next photographing. If the photographer desires panoramic photography, by turning the knob 23 in the direction of arrow A in FIG. 3 to the panoramic photography position display “P” 29,
The restricting members 30a and 30b are moved so that the vertical width of the photographing screen is narrowed to determine the screen size. The subject is framed through the viewfinder window 8 except the viewfinder eyepiece portion 22, and the shooting range for panoramic shooting is confirmed by the index line 10 printed on the laminate film 4.

The shutter button 6 is attached to the laminate film 4
When it is pressed via, the shutter blades of the well-known exposure unit 40 provided on the main body base 12 are opened and closed to expose the photographing light flux incident from the photographing lens 5 onto the film 16.
At this time, since the regulating members 30a and 30b are projected in the exposure frame 20 so as to narrow the vertical width, a predetermined upper and lower light flux of the incident photographing light flux is cut and exposed.

The photographer repeats photographing as described above,
It is confirmed by observing the display window 9 that the whole frame photographing of the film 16 is completed. After the shooting of all frames is completed, the winding knob 7 is operated until it does not rotate, so that all the exposed film 16 is wound around the cartridge 17. When the photographer requests the DPE together with the lens-fitted film unit to the development shop, these are further collected at the developing place. Since the exposed film 16 is completely stored in the cartridge 17 at the developing station, the lid 32 can be opened and only the cartridge 17 can be taken out from the cartridge chamber 18 provided in the unit main body 2 in the bright room. ..

In the above-mentioned embodiment, two index lines 10 are printed on the portion corresponding to the finder window 8 of the transparent laminate film 4 in order to confirm the photographing range at the time of panoramic photographing. As described above, all the visual field parts 42 other than the panoramic visual field frame 41 may be colored semitransparently. In addition, as shown in FIG. 5, in the laminated film of the four corners of the field frame for panoramic photography,
The index mark 43 may be printed.

Further, in the above-described embodiment, when looking through the finder, it is possible to forget or misunderstand whether it is in the panoramic shooting state or the standard shooting state. Therefore, it is possible to make the display member project out of the panoramic field of view in the viewfinder when switching the panorama, as in the viewfinder of "Sharp Run It's Close" (trade name) manufactured and sold by the applicant.

[0025]

As described above, according to the lens-fitted photo film unit of the present invention, since the index for confirming the panoramic field frame is provided at the portion corresponding to the finder window of the transparent cover which covers the unit body, the photographing screen In a film unit with a lens that has a size switching function,
The shooting range can be easily determined with an inexpensive finder mechanism.

[Brief description of drawings]

FIG. 1 is an external perspective view of a lens-fitted film unit embodying the present invention.

FIG. 2 is an exploded perspective view of the lens-equipped film unit shown in FIG.

FIG. 3 is an exploded perspective view of the lens-fitted film unit shown in FIG. 1 as viewed from the back side.

4 is an explanatory view showing another embodiment different from the lens-fitted film unit shown in FIG. 1. FIG.

5 is an explanatory view showing still another embodiment different from the lens-fitted film unit shown in FIG. 1. FIG.

[Explanation of symbols]

 2 unit body 3 package 4 laminated film 8 viewfinder window 10 index line 12 body base 13 front cover 14 rear cover 16 film 20 exposure frame 22 finder eyepiece 23 knobs 25, 26, 27 gears 30a, 30b regulating members 31a, 31b Bend piece 41 Field of view frame 43 Index mark

Claims (1)

[Claims] 1. A unit body having a photographing mechanism such as a photographing lens and a shutter in which an unexposed film is built in advance, and a function of changing a photographing screen size is wrapped in a packaging body such as a paper box and further covered with a transparent cover. In the film unit with lens, the film unit with lens is provided with an index for confirming the panoramic field frame at a portion corresponding to the finder window of the transparent cover.