JP2000321724A - Film unit with lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively manufacture a front cover, erc., by prevention a front cover, etc., from possesssing a sliding metallic structure in order to form an aperture part where a user visually recognizes the specified number of photographing frames and a long hole or a long groove becoming a fixed index. SOLUTION: This film unit is provided with an indexing device having an index plate 12 displaying plural number of the photographic frames, a unit main body 1 holding at least the indexing device, a front cover 2 covering the unit main body from a front part, and a rear cover 3 covering the unit main body from a rear part. In this case, the aperture where the specified number of the photographic frames is visually recognized, and the long hole or the long groove adjacent to the aperture part and becoming the fixed index of the number of the photographic frames are divided at an abutting part where the front and the rear abut and are formed of both the font and the rear covers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens-equipped film unit in which the number of frames displayed on an index plate of an indexer is visually recognized from an opening provided in an exterior member.

[0002]

2. Description of the Related Art Various openings are provided on the upper surface of a front cover and a rear cover of a film unit with a lens. For example, an opening through which a release button for performing a shutter release operation is inserted, an opening through which the number of shots displayed on an index plate that rotates in conjunction with film winding is visually recognized, and a strobe unit charged to a voltage capable of shooting. There is an opening for visually recognizing a lit LED or a neon tube.

A fixed index is provided in the vicinity of an opening for visually checking the number of frames to be shot. The fixed index is formed in a straight or circular concave or convex shape on the same member as the member forming the opening, or printed in a straight or circular shape on a paper cover or label further covering the front cover and the rear cover. I have.

A film unit with a lens is provided with an indexer which rotates an index plate indicating a plurality of photographing frames in association with winding of the film. An opening having a circular shape or the like is formed on the upper surface of the front cover or the like in order to visually recognize the number of photographed frames of the index plate.

A normal front cover and an index plate are molded of black resin, and the number of photographed frames is white by a hot stamp.

[0006] In a conventional film unit with a lens having a built-in strobe, an L which lights up when charged.
The ED and the neon tube were visually recognized from the opening provided in the front cover and the like.

The film unit with a lens is provided with an indexer that rotates an index plate indicating the number of frames to be taken in conjunction with film winding, and the maximum number of frames that can be taken depends on the film to be loaded and the film chamber. There are various types such as 24, 27, 36, 39, 40, etc., depending on the size of.

[0008] The size of the index plate is limited by the thickness of the film unit with a lens, and cannot be made too large. Accordingly, the total number of photographing frames arranged on the circumference is also limited, and in many cases, the frames are displayed at intervals of two. For this reason, an opening for visually confirming the number of shot frames is formed large, so that even if the number of shot frames not displayed is located between the displayed number of shot frames, it can be determined from the number of previous and next shot frames. .

In recent years, in a film unit with a lens, after being collected from a developing laboratory, usable parts are reused in a film unit with a lens newly manufactured. Therefore, in the case of reuse, it is common to use an index plate having the number of shot frames corresponding to the maximum number of frames that can be shot, but sometimes it is necessary to reuse an index plate displaying a larger maximum number of shot frames. Is also conceivable.

[0010]

The front cover covers a unit body on which various photographing mechanisms are mounted from the front, and also covers a part of the upper surface, lower surface, and both side surfaces of the unit body. Therefore, the mold for molding the front cover has a mold structure to be pulled out in the front-rear direction, and various openings formed on the upper surface of the front cover and the like as described above have a slide mold structure. The same applies to the rear cover.

[0011] Due to such a slide mold, the cost of the mold is increased, and the molding time is long, and the unit cost of parts is also increased. This was not desirable for a lens-fitted film unit that aims to produce at the lowest possible cost.

The present invention has been made in view of such a problem, and has a front cover and a rear cover that do not have a slide mold structure at least for an opening or the like for visually confirming the number of shot frames of an index plate. A first object is to propose a film unit with a lens.

In the conventional lens-fitted film unit, the number of frames taken on the index plate at the position deep in the opening formed in the front cover or the like is visually recognized, so that the position of the indexer is difficult to recognize at a glance. was there. Further, when the fixed index is formed near the opening of the front cover or the like, there is a problem that the position of the fixed index is difficult to visually recognize.

The present invention has been made in view of such a problem, and it is a second object of the present invention to propose a film unit with a lens in which the positions of an index plate and a fixed index can be easily visually recognized. .

In a conventional film unit with a lens having a built-in strobe, an LED or a neon tube is visually recognized through an opening provided in a front cover or the like.
Light was emitted from D and neon tubes in all directions, and light passing through the opening was part of the light. For this reason, there is a problem that it is difficult to see the lit light in the daytime when performing flash photography with backlight or when performing flash photography of a person in the shade of a tree or a car.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a lens-equipped film unit in which light from an LED or a neon tube passing through an opening is increased as compared with the related art, so that the LED or the neon tube can be easily recognized even in a bright state. Is a third problem.

For example, as shown in the top view of the aperture and the index plate shown in FIG. 10, when the maximum number of frames to be photographed by a newly manufactured film unit with a lens is 24, an index plate 72 displaying a number of frames larger than 24. Is reused, a large number of adjacent shooting frames that should not be present can be seen from the opening 71 provided in the exterior member, and a sense of discomfort occurs.

The present invention has been made in view of such a problem, and even if an index plate displaying a larger number of photographing frames than the maximum number of photographing frames is used, the larger number of adjacent photographing frames can be seen from the opening. A fourth object is to propose a film unit with a lens that does not cause a sense of incongruity.

[0019]

The above-mentioned first object is attained by any of the following means.

An indexer having an index plate indicating the number of frames to be shot, a unit main body holding at least the indexer, a front cover for covering the unit main body from the front, and covering the unit main body from the rear. In a film unit with a lens having a rear cover, an opening for visually recognizing a predetermined number of frames to be photographed, and a long hole or a long groove adjacent to the opening and serving as a fixed index of the number of frames to be photographed, the front cover and A film unit with a lens, wherein the film unit is divided by a contact portion where the rear cover comes into contact with the front cover and the rear cover.

A strobe unit having a release button for performing a shutter release operation, an indexer having an index plate indicating a number of frames to be shot, and a charge indicator light which is turned on when charged to a photographable voltage; In a film unit with a lens, comprising: a release button, a unit body that holds the exponent and the strobe unit, a front cover that covers the unit body from the front, and a rear cover that covers the unit body from the back. An opening through which the release button is inserted, an opening through which a predetermined number of frames are visually recognized, and an opening through which the charging indicator light is visually recognized, by a contact portion where the front cover and the rear cover abut. A film unit with a lens, which is divided and formed by both the front cover and the rear cover.

The above-mentioned second problem is solved by any of the following means.

An indexer having an index plate indicating the number of frames to be photographed, a unit main body holding at least the indexer, and an exterior member including a front cover and a rear cover for covering the unit main body from front and rear. In the lens-equipped film unit provided, a first opening for visually recognizing a predetermined number of photographing frames is formed in the front cover or the rear cover, or in a contact portion where the front cover and the rear cover abut. And formed by both the front cover and the rear cover to have a second opening facing the first opening and smaller than the first opening. The first opening is A film unit with a lens, wherein an index plate revealing member formed in a color different from that of the exterior member to be formed is disposed between the first opening and the index plate.

An indexer having an index plate indicating the number of frames to be photographed, a unit main body holding at least the indexer, and an exterior member including a front cover and a rear cover for covering the unit main body from front and rear. In the provided film unit with a lens, a long hole serving as a fixed index of a predetermined number of photographing frames is formed in the front cover or the rear cover, or at a contact portion where the front cover and the rear cover abut. And a display member formed by both the front cover and the rear cover and formed in a color different from the exterior member forming the elongated hole is disposed below the elongated hole. Film unit with lens.

The above-mentioned third problem is solved by the following means.

A strobe unit having a charge indicator light that is turned on when charged to a photographable voltage, a unit body that holds at least the strobe unit, and an opening that covers the unit body and allows the charge indicator light to be viewed. In a film unit with a lens provided with an exterior member provided, an upper part is opened to face the opening, and a reflection chamber having a mirror-finished side wall and a bottom wall is formed on the unit body or the exterior member, A film unit with a lens, wherein a charge indicator lamp is inserted into the reflection chamber.

The above-mentioned fourth problem is solved by the following means.

An indexer having an index plate indicating the number of frames to be photographed, a unit body holding at least the indexer, and an exterior covering the unit body and having an opening through which a predetermined number of frames can be visually recognized. Wherein the opening is formed at a position where the number of photographing frames larger than the number of photographing frames to be displayed on the index plate cannot be visually recognized. .

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] An embodiment of a film unit with a lens according to claims 1 to 7 will be described with reference to FIGS.

First, the main structure of the present invention will be described with reference to an exploded perspective view of a lens-fitted film unit shown in FIG.

In FIG. 1, 1 is a unit main body on which various photographing mechanisms are mounted, 2 is a front cover that covers the unit main body 1 from the front, and 3 is a rear cover that covers the unit main body 1 from the rear.

An index plate revealing member 11 for highlighting an index plate and a fixed index of the indexer is locked to the unit body 1 by two locking claws 11a. Index plate revealing member 1
Numeral 1 is formed of, for example, a white resin, and has an opening 11b for visually checking the number of photographed frames of the index plate 12. Index plate 1
Since 2 is located below the index plate revealing member 11, only a part is drawn in this figure.

A release button 11c is formed integrally with the index plate revealing member 11 by an arm 11d having elasticity.

When the release button 11c is pressed, a shutter release operation is performed by a well-known mechanism (not shown). When the winding knob 13 is wound in a counterclockwise direction, a film (not shown) is wound up. The sprocket 14 rotates,
The index plate 12 is rotated by a cam member (not shown). Therefore, the number of unexposed photographed frames displayed on the index plate 12 can be visually recognized from the opening 11 b of the index plate revealing member 11.

Reference numeral 20 denotes a strobe unit, on which various electric components for strobe such as an LED 22 are mounted on a printed circuit board 21. The LED 22 is turned on when the strobe unit 20 is charged to a voltage that allows photographing. Note that the LED 22 may blink instead of continuing to be lit, or a neon tube may be used instead of the LED 22. The unit main body 1 is provided with a reflection chamber 1a whose upper part is open and whose side walls and bottom wall are mirror-finished, and an LED 22 is inserted into the reflection chamber 1a. Therefore, LED
When the lamp 22 is turned on, the light that has been turned on is reflected by the side walls and the bottom wall of the reflection chamber 1a, and the light irradiated upward is greatly increased as compared with the case where the reflection chamber 1a is not provided.

As described above, since various members are arranged on the upper portion of the unit main body 1, the number of photographing frames of the index plate 12 is visually recognized on the front cover 2 and the like through the opening through which the release button 11c fits. At least an opening and an opening for visually recognizing the LED 22 are required.

Therefore, when the unit body 1 is covered by the front cover 2 from the front and covered by the rear cover 3 from the back, the contact portions 2a, 2a, where the front cover 2 and the rear cover 3 abut.
If the above-mentioned opening is provided along 3a, the opening is divided into the front cover 2 and the rear cover 3 to form a notch, so that the die can be cut out in the front-rear direction without using a slide die.

That is, a semicircular notch 2b into which the release button 11c fits, an index plate 12
2c of a semicircle for visually confirming the number of shot frames
A semi-elliptical notch 2d for visually recognizing D22 is provided, a semicircular notch 3b into which the release button 11c fits in the contact portion 3a of the rear cover 3, and a semicircle for visually recognizing the number of shot frames of the index plate 12. And a semi-elliptical notch 3d for visually recognizing the LED 22 may be provided.

Further, the number of frames before and after a predetermined number of frames can be visually recognized from the opening for the index plate 12.
A fixed index indicating a predetermined number of frames is required. For this purpose, the notch 2e adjacent to the notch 2c is provided in the contact portion 2a of the front cover 2, and the notch 3e adjacent to the notch 3c is provided in the contact portion 3a of the rear cover 3, thereby forming a long hole. Since it is formed, it can be used as a fixed index.

FIG. 2 is a top view of the lens-fitted film unit, FIG. 3 is a cross-sectional view of an opening through which the release button is inserted, and FIG. Sectional view of part, LE of strobe unit in FIG.
D is shown in the cross-sectional view of the opening for viewing.

As shown in FIGS. 2 and 3, the release button 1
1c is fitted through an opening formed by the notch 2b of the front cover 2 and the notch 3b of the rear cover 3.

As shown in FIGS. 2 and 4, the number of photographed frames 12a of the index plate 12 is notch 2c of the front cover 2.
It is visually recognized through the opening 11b of the index plate revealing member 11 from the opening formed by the notch 3c of the rear cover 3. In particular, when the front cover 2 and the rear cover 3 are molded with black resin and the index plate revealing member 11 is molded with white resin,
Since the position of the index plate 12 is clear and easy to see, and since the opening formed by the front cover 2 and the rear cover 3 and the opening 11b of the index plate revealing member 11 are chamfered, The number of shot frames is easy to see.

The inner size of the opening 11b of the index plate revealing member 11 is smaller than the inner size of the opening formed by the notch 2c of the front cover 2 and the notch 3c of the rear cover 3. ing.

As shown in FIGS. 2 and 5, the LED 22 is visually recognized from an opening formed by the notch 2d of the front cover 2 and the notch 3d of the rear cover 3. L
The light emitted from the ED 22 is reflected by the reflection chamber 1a formed on the mirror surface.
, The light emitted from the upper opening greatly increases, and the light becomes particularly easy to see.

As shown in FIGS. 2 and 6, with respect to the fixed index, a slot formed by the notch 2e of the front cover 2 and the notch 3e of the rear cover 3 serves as a fixed index, and a white index from the slot. The plate revealing member 11 is visually recognized. Therefore, if the front cover 2 and the rear cover 3 are black, they become white fixed indices and easy to see fixed indices.

However, as for the fixed index, other forms are conceivable unless the lower white index plate revealing member 11 is made visible as in the conventional fixed index.

That is, as shown in FIG. 7, if the notches 32a, 33a having steps are provided at the abutting portions of the front cover 32 and the rear cover 33 and are brought into contact with each other, they become long grooves and can be used as fixed indices. it can.

Further, if protrusions 42a and 43a are provided at a contact portion between the front cover 42 and the rear cover 43 as shown in FIG. 8, a rib-shaped fixing index can be obtained.

As described above, in both of FIGS. 7 and 8, the fixing index is provided at the contact portion between the front cover and the rear cover, so that the sliding die does not become the same as the above-described elongated hole. On the other hand, as described above, if the purpose is only to make the white index plate revealing member 11 visually recognizable and to make the opening of the index plate stand out, the opening is formed in the front cover or the rear cover by a conventional method. It may be formed using a slide mold as described above.

Finally, the correspondence between the terms used in the claims and the terms used in the present embodiment is shown below.

The first opening is formed by the notch 2 c of the front cover 2.
And a notch 3c of the rear cover 3, and an opening formed by using a slide die in the front cover and the rear cover.

The second opening corresponds to the opening 11 b of the index plate revealing member 11.

The charging indicator light corresponds to an LED or a neon tube.

[Second Embodiment] An embodiment of a film unit with a lens according to claim 8 of the present invention will be described with reference to a top view of an opening and an index plate in FIG.

In FIG. 9, reference numeral 51 denotes an opening provided in the front cover or the like. The opening 51 may be provided in the rear cover, or may be formed by a contact portion between the front cover and the rear cover. . 52 is an index plate. In the film unit with the lens provided with the index plate, a film of 24 shots is loaded, and the index plate 32 is set to “2”.
This is an inverse formula that rotates clockwise starting from the number of shot frames indicated by “4” and indicates the number of remaining shot frames. The opening 51 is formed larger than the character “24”.
The central portion of the opening 51 does not match the central portion of the numeral “24”, and is located at a position slightly shifted downward on the upstream side in the rotation direction of the index plate 32.

For this reason, “2” which is larger than the number “24”
Since the number "7" cannot be visually recognized from the opening 51, even if a film of 24 shots is loaded, it is not always necessary to use an index plate corresponding to the shooting of 24 shots, and a film of 39 shots as shown in FIG. Then, the index plate 52 indicating the maximum number of frames to be taken as "39" can be used.

The shape of the opening is not limited to a circle, but may be an arbitrary shape such as an ellipse or a square.

[0058]

According to the film unit with the lens according to the first aspect of the present invention, the front cover and the like are formed of a slide die for forming an opening for observing a predetermined number of frames and a long hole or a long groove serving as a fixed index. It does not have a structure, and the front cover and the like can be manufactured at low cost.

According to the film unit with the lens according to the second aspect, an opening through which the release button is inserted, an opening through which a predetermined number of frames are visually recognized, and an opening through which the charging indicator light is visually recognized are formed. Therefore, the front cover and the like do not have a slide mold structure, and the front cover and the like can be manufactured at low cost.

According to the film unit with the lens according to the third aspect, the number of photographing frames of the index plate is formed on the index plate revealing member of a color different from that of the exterior member through the first opening formed on the exterior member. Since it is visually recognized through the second opening, the position of the index plate can be easily visually recognized.

According to the film unit with the lens according to the fourth and sixth aspects, since the fixing index is formed by the elongated hole formed in the exterior member and the revealing member of a color different from that of the exterior member, the fixing index is clearly defined. Become.

According to the film unit with the lens according to the fifth aspect, since the release button is formed integrally with the indicator plate revealing member, the die structure of the front cover is simplified.

According to the film unit with the lens according to the seventh aspect, the light emitted from the opening for visually recognizing the charge indicator light is increased as compared with the conventional case, so that the charge indicator lamp is easily visible even when it is bright.

According to the film unit with the lens according to the eighth aspect, since the larger number of photographed frames displayed next to the index plate cannot be seen from the opening, the index plate having the larger maximum photographed frame number is diverted. be able to.

[Brief description of the drawings]

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

FIG. 2 is a top view of the film unit with a lens.

FIG. 3 is a sectional view of an opening through which a release button is inserted.

FIG. 4 is a cross-sectional view of an opening for visually checking the number of photographed frames on the index plate.

FIG. 5 is a cross-sectional view of an opening for visually recognizing the LED of the strobe unit.

FIG. 6 is a sectional view of a fixed index.

FIG. 7 is a cross-sectional view of another embodiment of a fixed index.

FIG. 8 is a cross-sectional view of another embodiment of a fixed index.

FIG. 9 is a top view of the opening and the index plate.

FIG. 10 is a top view of a conventional opening and an index plate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Unit main body 1a Reflection chamber 2,32,42 Front cover 2b, 2c, 2d, 2e, 3b, 3c, 3d, 3e Notch 3,33,43 Rear cover 11 Index plate revealing member 11c Release button 12,52,72 Index plate 22 LED 51, 71 Opening

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme court ゛ (Reference) G03B 17/02 G03B 17/02 17/04 17/04 17/36 17/36 (72) Inventor Yoshi Suzuki Jiro 1-5-3 Takazukadai, Nishi-ku, Kobe City, Hyogo Prefecture Inside Konica Corporation (72) Inventor Akihiko Fujiwara 1-5-3 Takatsukadai, Nishi-ku, Kobe City, Hyogo Prefecture Inside Konica Corporation (72) Inventor Tsutomu Kako Hyogo 1-5-5 Takatsukadai, Nishi-ku, Kobe-shi, F-term (reference) in Konica Corporation 2H053 AA03 CA41 CA45 2H100 AA41 BB03 BB05 BB06 BB07 CC00 2H101 AA01 AA02 2H102 AB13 AB34 BB04 DA00 DA13

Claims (8)

[Claims] 1. An indexer having an index plate displaying a plurality of photographing frame numbers, a unit main body holding at least the indexer, a front cover for covering the unit main body from the front, and the unit main body from the rear. In a film unit with a lens provided with a rear cover for covering, an opening for visually recognizing a predetermined number of photographing frames, and a long hole or a long groove adjacent to the opening and serving as a fixed index of the number of photographing frames, A film unit with a lens, wherein the film unit is divided by a contact portion where the cover and the rear cover come into contact with each other and formed by both the front cover and the rear cover. 2. A strobe unit having a release button for performing a shutter release operation, an indexer having an index plate displaying a plurality of shooting frames, and a charging indicator light which is turned on when charged to a voltage capable of shooting. In a lens-equipped film unit including at least the release button, the unit body holding the exponent and the strobe unit, a front cover covering the unit body from the front, and a rear cover covering the unit body from the rear. An opening through which the release button is inserted, an opening through which a predetermined number of frames are visually recognized, and an opening through which the charging indicator is visually recognized, and a contact portion where the front cover and the rear cover abut. Characterized in that the film unit is formed by both the front cover and the rear cover. 3. An exterior member comprising: an indexer having an index plate displaying a plurality of photographing frames; a unit main body holding at least the indexer; a front cover and a rear cover covering the unit main body from front and rear. In the lens-equipped film unit comprising: a first opening for visually recognizing a predetermined number of photographing frames is formed in the front cover or the rear cover, or a contact where the front cover and the rear cover abut. A second opening facing the first opening and smaller than the first opening, the second opening being formed by both the front cover and the rear cover. A film unit with a lens, wherein an index plate revealing member formed in a color different from the exterior member forming the portion is disposed between the first opening and the index plate. 4. An elongated hole serving as a fixed index of a predetermined number of photographing frames is provided adjacent to said first opening, and said index plate revealing member is arranged below said elongated hole. 3
The film unit with a lens according to 1. 5. A release button for performing a shutter release operation is provided at one end of an arm having elasticity, and the release button and the index plate revealing member are integrally formed. The film unit with a lens according to 1. 6. An exterior member comprising an indexer having an index plate indicating a plurality of photographing frames, a unit main body holding at least the indexer, and a front cover and a rear cover covering the unit main body from front and rear. In the film unit with a lens, a long hole serving as a fixed index of a predetermined number of frames is formed in the front cover or the rear cover, or a contact where the front cover and the rear cover are in contact with each other. And a display member formed by both the front cover and the rear cover, and formed by a different color from the exterior member forming the long hole, is disposed below the long hole. Film unit with lens. 7. A strobe unit having a charge indicator light that is turned on when charged to a voltage capable of photographing, a unit body holding at least the strobe unit, and an opening that covers the unit body and allows the charge indicator light to be viewed. In a film unit with a lens provided with an exterior member provided with a portion, an upper portion is opened to face the opening, and a reflection chamber in which a side wall and a bottom wall are mirror-finished is formed in the unit body or the exterior member. A film unit with a lens, wherein the charging indicator is inserted into the reflection chamber. 8. An indexer having an index plate displaying a plurality of frames, a unit body holding at least the indexer, and an opening for covering the unit body and visually recognizing a predetermined number of frames. A film unit with a lens having an exterior member having the lens, wherein the opening is formed at a position where the number of photographing frames larger than the number of photographing frames to be displayed on the index plate is not visible. Film unit.