JPH11311821A - Film unit with lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely fully open/close a slide protection cover. SOLUTION: The protection cover 17 for a photographic lens is installed in front of the unit. An index 17a is arranged on the top surface of the protection cover 17, and indexes 4a and 4b are separately installed on the main body 2 so that the index 4a may face the index 17a when the protection cover 17 is fully open and the index 4b may face the index 17a when the cover 17 is fully closed. The indexes face each other at the full-open position and also as the full-closed position at the time of opening/closing the protective cover 17, then, the photographer can recognize that the protection cover 17 is fully opened/closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens-fitted film unit provided with a sliding cover for protecting a photographic lens.

[0002]

2. Description of the Related Art A simple exposure mechanism is provided so that anyone can easily enjoy taking a picture, and an unexposed photographic film and a cartridge are loaded in advance at the time of manufacture, so that cumbersome film loading and rewinding operations are not required. A film unit with a lens (hereinafter, referred to as a “film unit”) is well known.

[0003] As a film unit, a device provided with a protective cover in a sliding manner to protect a photographic lens provided on the front surface of the main body of the film unit has been proposed by the present applicant (for example, Japanese Patent Application No. Hei 9 (1998) -108). -27266
1). Since this protective cover is assumed to be mounted on the film unit, a precise mechanism is not adopted, and a slide guide is provided on the film unit main body, and the protective cover has a simple structure in which the protective cover is slidably fitted. However, a shutter release lock or a flash button may be locked in conjunction with the opening / closing operation of the protective cover. It is also conceivable that the film enters the corner and is reflected on the film, and in this case, accurate full opening and closing operations of the protective cover are important.

[0004] For this reason, as in the case of a normal compact camera, a film unit is also used.
To check the fully open state and fully closed state of the protective cover, consider a method in which the click provided at the position corresponding to the fully open and fully closed positions of the protective cover on the slide guide is performed by resistance and sound when the protective cover gets over. Have been.

[0005]

However, the user base of the film unit is wider than that of the compact camera, and therefore, the user is not accustomed to the operation by the above-mentioned method which is well known for a normal compact camera. When opening and closing the cover, the cover may be stopped just before the fully open and fully closed positions.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and provides a film unit with a lens for opening and closing a protective cover to a fully open or fully closed position more reliably when opening and closing a slide-type protective cover. With the goal.

[0007]

In order to solve the above-mentioned problems, in the film unit with a lens according to the present invention, an index is provided on a part of the protective cover, and the index provided on the cover when the cover is fully opened. In addition, an index is provided at a position on the main body opposite to the main body, and in addition, an index is also provided at a position on the main body opposite to the index provided on the cover when the cover is fully closed. Is provided. Thereby, since it becomes possible to visually confirm the fully open position or the fully closed position of the protective cover,
It is possible to prevent stopping during the opening / closing operation, and it is possible to increase the reliability of the accurate full opening or full closing operation of the protective cover.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 and 2, which schematically show the appearance and internal structure of a film unit, a film unit 1 is roughly divided into a main body 2 and a protective cover (described later).
7). The main body 2 is formed by covering the front and back surfaces of a main body base 3 with a front cover 4 and a rear cover 5. A shutter mechanism, a finder mechanism, a film counter mechanism, a film unwinding mechanism, a shutter cover 6 for covering the dark box portion from the front, and the like are assembled on the front and upper surfaces thereof. I have.

A cartridge storage chamber 7 and a film storage chamber 8 are integrally formed so as to sandwich the exposure mechanism (described later). Each of these storage chambers is loaded with a cartridge 9 and a film 10 drawn out of the cartridge 9 and assembled in a roll in the film unit manufacturing process.

On the front surface of the front cover 4, a strobe light emitting window which is an opening for exposing the photographing lens 11, the finder lens 12 and an strobe light emitting portion 14, and a strobe switch 15 for turning on / off the strobe device. An opening or the like for exposing the switch section 15a is formed. A slide guide 16 is provided on the front and upper surfaces of the front cover 4. When the slide guide 16 is at the fully closed position, the photographing lens 11 and the finder lens 1
A sliding protective cover 17 is slidably fitted to cover the cover 2.

The slide guide 16 is provided with clicks (not shown) at positions corresponding to the fully open position and the fully closed position of the protective cover 17, so that the photographer can protect the protective cover 1 from the click.
When the opening / closing operation is performed by sliding the slide 7, it can be understood that the click sound and the resistance have reached the fully open position and the fully closed position. Further, this click prevents a malfunction of the protective cover 17 such as the protective cover 17 being opened or closed at the time of photographing due to vibration or shaking when carrying.

On the upper surface of the protective cover 17, a marker 17a is formed in a semicircular shape and is integrally formed and protruded. Also, the front cover 4
The indicator 4a is located on the upper surface of the indicator 4a at a position facing the indicator 17a when the protective cover 17 is fully open, and is located at a position facing the indicator 17a when the protective cover 17 is fully closed. However, each has a semicircular shape and is integrally formed with the front cover 4 so as to protrude therefrom.

When the indicator 17a comes to a position facing 4a or 4b, the photographer who opens and closes the protection cover 17 can visually confirm that the protection cover 17 is in the fully open state or the fully closed state. That is, as shown in FIG. 1A, when the protective cover 17 is in the fully opened state, the semicircular index 17a formed on the upper surface of the protective cover 17 and the semicircular index 4a provided on the front cover 4 face each other. 1B, when the protective cover 17 is in the fully closed state, the semicircular index 17a and another semicircular mark provided on the front cover 4 are formed. The indices 4b face each other to form a circle. Then, the photographer sets the index 17a.
Is moved to the position facing 4a or 4b, and the fully open state or the fully closed state of the protective cover 17 is confirmed.

On the upper surface of the front cover 4, in addition to the indicators 4a and 4b, a shutter button 18, a lens plate 19 of a film counter, and a light guide 21 for notifying that the strobe has been charged.
An opening or the like that exposes the light is formed. The shutter button 18 is fitted on a shaft protruding from the upper surface of the plate on which the film counter 12 is formed, and forms a part of the above-described shutter mechanism.

The light guide 21 is engaged with the interlocking portion 15b integrally formed on the back surface of the above-mentioned strobe switch 15, so as to project from the upper surface of the front cover 4 in conjunction with the movement of the strobe switch 15 to the ON position. In conjunction with the movement to the OFF position, the front cover 4 is retracted within the outer contour.

The shutter button 18 and the flash switch 15 are configured to operate a lock mechanism in conjunction with opening and closing of the protective cover 17. The release lock mechanism of the shutter button 18 is provided by a lock member (not shown) provided between the protection cover 17 and the front cover 4.
It is activated by the rotation associated with the opening and closing of 7.

On the other hand, the locking mechanism of the strobe switch 15 is such that a lower surface of the protective cover 17 and a rail (not shown) protruding from the strobe switch engage with a slope 15c provided on the strobe switch 15. Operate.
This lock mechanism locks the movement of the strobe switch 15 to the ON position when the protective cover 17 is in the closed position, and also interlocks with the operation of closing the protective cover 17 even when the strobe switch 15 is in the ON state. Switch 15 to O
It has the function of moving to the FF position. With these lock mechanisms, the shutter release and the strobe switch cannot be turned on when the protection cover 17 is in the fully closed state. This prevents an erroneous operation when the protective cover is closed.

The rear cover 5 is integrally provided with an opening for exposing a winding knob 22 for winding up the film one frame at a time, a finder opening, and bottom lids 24 and 25 for light-tightly covering the bottom openings of the cartridge storage chamber 7 and the film storage chamber 8. Is formed. The bottom cover 25 is opened when taking out the cartridge 9 in which the photographed photo film is entangled. Note that a cosmetic label sticker 23 is attached so as to cover the surface of the film unit 1 in a strip shape, and the label sticker 23 is attached to a label sticker 23a attached to the protective cover 17 and a label sticker 23b attached to the main body 2 side. I know. A required portion of the label seal 23b is provided with an opening for exposing a portion required for a photographing operation to the surface.

A hoisting knob 22 is provided at the upper part of the cartridge storage chamber 7, and a hoisting shaft integrally formed on the lower surface thereof engages with the spool of the cartridge 9. By rotating the winding knob 22 every time a photograph is taken, the photographed film 10 is taken into the cartridge 9 one frame at a time. The shutter mechanism incorporated in the exposure unit 28 is charged for the next photographing operation in conjunction with the winding of one frame of the film, and the rotation of the winding knob 22 is locked by the winding stopping mechanism when the feeding of one frame of the film is completed. You. A part of the winding knob 22 is exposed from an opening provided in the above-mentioned rear cover and can be operated externally.

The main body base 3 has the above-described exposure mechanism 28 on the left side of the center and the strobe unit 29 on the right side as viewed from the front.
Is assembled. A front surface of a dark box (not shown) serving as a base of the exposure mechanism 28 is covered with a shutter cover 6. A shutter mechanism having a shutter button 18 as a part thereof is provided on an upper surface and a front surface of the dark box. A mechanism, a film counter mechanism partially including the lens plate 19 of the film counter, and a finder mechanism partially including the finder lens 12 are assembled. Shutter blades (not shown) are provided on the rear surface of the shutter cover 6, and the photographing lens 11 is provided on the front surface. Are provided to constitute the exposure mechanism 28.

The strobe unit 29 has a condenser, a charging start piece 31, a battery 32, and a strobe light-emitting section 1 which constitute a charging section based on a base 30 which forms a strobe circuit.
4, a strobe switch 15, a strobe switch receiving plate 33, and the like. The charging start piece 31 is linked to a strobe switch 15 provided on the front cover. Completion of the flash charging is recognized by the photographer via the light guide 21 by turning on an LED provided in the flash circuit. Flash emission is performed by sending a trigger signal to a flash circuit from a synchro switch linked to a shutter mechanism.

The operation of the above configuration will be described below. When the film unit 1 is not used, FIG.
As shown in the figure, the photographing lens 11 provided in the main body 2
Further, the finder lens 12 is closed by the protective cover 17. In this state, the above-mentioned release lock mechanism is operated, so that careless shutter release is reliably prevented. Similarly, the lock mechanism of the strobe switch 15 is operating, and the operation to the ON position is prevented.

Since the protective cover 17 is in the fully closed state, the semicircular index 17a on the upper surface of the protective cover 17 and the semicircular index 4b on the main body 2 are at opposing positions, and a circle is formed by these two semicircles. ing. With the configuration of this circle, it can be visually confirmed that the protective cover 17 is in the fully closed state.

If the protective cover 17 is not in the fully closed state, the indices 17a and 4b do not completely oppose each other and no circle is formed. You can notice. Also, since a click is provided at the fully closed position of the slide guide 16,
The protective cover 17 does not open due to slight shaking or vibration.

When the film unit 1 is used, as shown in FIG. 1A, the protective cover 17 is slid toward the fully open position. When the protective cover 17 is slid to the fully opened position, the fully opened state can be confirmed by the resistance and sound generated by clicking on the slide guide 16. When the protective cover 17 is in the fully opened state, the semicircular index 17a on the upper surface of the protective cover 17 and the semicircular index 4a on the main body 2 are located at opposing positions.
A circle is formed by the two semicircles, so that the photographer can visually confirm that the protective cover 17 is fully opened.

If the protection cover 17 is not fully opened even if the opening operation of the protection cover 17 is stopped halfway due to click resistance or the like when the protection cover 17 is opened. , The indicators 17a and 4a
Are not completely opposed and no circle is formed, so that the photographer can visually confirm that the protective cover 17 is not fully opened. Further, as described above, since the click is also provided at the fully open position of the slide guide 16, the protective cover 17 does not close due to slight shaking or vibration.

When the protective cover 17 is fully opened, the photographing lens 11 and the finder lens 12 are exposed.
While the protection cover 17 is moving, the release lock mechanism of the shutter button 18 is released, and similarly, the lock mechanism of the strobe switch 15 to the ON position when not in use is released, and these operations are both permitted. Thus, it is possible to select and operate the flash switch 15 depending on whether or not to perform flash shooting, and perform shooting.

To start the photographing operation, first, the winding knob 2
By rotating the film 2, the film 10 is wound up. When the film 10 is wound up by one frame, the rotation of the winding knob 22 is locked by the winding lock mechanism, and the shutter charge is completed at the same time. When the subject is confirmed and the shutter button 18 is depressed, the shutter mechanism operates to open and close the shutter, and photographic light entering the dark box from the photographic lens 11 is exposed to the film 10.

As described above, since the fully opened state of the protective cover 17 is visually confirmed, an accurate full opening operation is surely performed. Is not mistakenly included in the image formed on the film 10.

When performing flash photography, the flash switch 15 is moved to the ON position before the shutter button 18 is pressed, and charging of the flash is started. At the same time, the light guide 21 projects from the upper surface of the front cover 4 by the above-described interlocking mechanism. The completion of flash charging is confirmed by the light guide 21, and the shutter button 18 is pressed.
When the shutter button 18 is depressed, the shutter mechanism operates to turn on the synchro switch of the strobe circuit, whereby a trigger signal is sent to the strobe circuit, strobe light is emitted, and photographing is performed.

If the user does not immediately proceed to the next shooting,
As shown in (B), the protective cover 17 is slid toward the fully closed position. When the protective cover 17 is slid to the fully-closed position, the fully-closed state can be confirmed by the resistance and sound generated by clicking on the slide guide 16. Further, as described above, when the protective cover 17 is in the fully closed state, the semicircular index 17a on the upper surface of the protective cover 17 and the semicircular index 4b on the main body 2 side are at opposing positions. , A photographer can visually confirm that the protective cover 17 is in the fully closed state. Further, the protection cover 17 is not opened carelessly by the action of the click provided on the slide guide 16 described above.

When the protective cover 17 is fully closed, the photographing lens 11 and the finder lens 12 are covered with the protective cover 17, so that fingerprints and stains do not occur due to inadvertent contact of the finger during transportation. Further, as described above, the shutter button 18 is operated by closing the protection cover 17.
Similarly, even if the flash switch 15 is in the ON position, the flash switch 15 moves to the OFF position in conjunction with the full closing of the protective cover 17, and the light guide 21 also Evacuated within
Movement to the ON position is locked. This prevents erroneous operation of the shutter button 18 and the flash switch 15 when not in use.

After the shooting is completed up to the last frame,
The film is wound up to the leading end of the film 10 by the winding knob 22. The used film unit 1 is submitted to the developing station for each film unit, and after the developing processing at the developing station, the developed film is returned to the user together with the print photograph.

In the present invention, the IX240 film cartridge 9 is used. However, the present invention is not limited to this, and a well-known 135-type photographic film cartridge may be used. A cartridge using a dedicated cartridge having a diameter may be used.

FIG. 3 shows a second embodiment of the present invention. Note that members common to the first embodiment described above are denoted by common reference numerals. In this embodiment, indices indicating the positions of the protective cover 17 in the fully closed state and the fully opened state are provided on the protective cover and the label seal 23 attached to the main body 2. The indicator 35 on the protective cover side is printed in a triangular shape on the label sticker 23a attached to the protective cover so as to be located on the upper surface of the protective cover 17. On the other hand, the indices 36 and 37 on the main body side are located at positions facing the indices 35 on the upper surface of the main body 2 when the protective cover 17 shown in FIG. The indicator 37 is printed on the label sticker 23b such that the indicator 37 is located at a position facing the indicator 35 when the protective cover 17 shown in the fully closed state is shown on the upper surface of the main body 2.

By printing these indices 35, 36 and 37 on the label sticker 23, the label sticker 2 can be used by using a conventional film unit with a protective cover as it is.
The film unit of the present invention can be easily obtained simply by replacing 3. For this reason, implementation at low cost becomes possible.

The embodiment of the present invention is not limited to the above embodiment. As shown in FIGS. 4A and 4B, indices 38, 39, and 40 indicating the fully open state and the fully closed state of the protective cover may be printed on the label sticker 23 so as to face the front of the main body 2. Is possible, and not the label seal 23,
It may be printed as an index independently. Of course, the index may be formed integrally with the protective cover 17 and the main body 2 as shown in the first embodiment at a position facing the front of the main body 2 without printing, and either one may be integrally formed or It may be printing.

The shape of the index is not limited to a triangle or a circle.
An arrow, a rectangle, and the like may be used as long as the opposing relationship between the protective cover side and the main body side index is indicated, and may be a number, a symbol, a character, a pattern, or the like.
Alternatively, as shown in FIG. 4, it may be configured by a combination of characters and figures. Further, the indicator may be provided on the lower surface of the main body depending on the shape of the protective cover.

In this embodiment, in both cases, the indices provided on the protective cover side are provided at both the position on the main body facing when the protective cover is fully opened and the position on the main body facing when the protective cover is fully closed. However, an index may be provided only at the position on the main body side facing when the protective cover is fully opened.

[0040]

As described above, according to the film unit of the present invention, indices are provided on the protective cover and the main body side, and these indices are located at positions where the protective cover is fully opened and fully closed or only at the fully open position. With the provision, the position of the protective cover in the fully opened state or the fully closed state can be visually confirmed. As a result, the accuracy of the opening and closing operation of the protective cover is increased, and it is possible to reliably prevent the reflection of the protective cover on the film and the confusion of the user due to the release lock being applied at a position where it cannot be completely opened, further,
By implementing the present invention even in the fully closed position, it is possible to reliably prevent contamination of the photographing lens and the like when not in use and erroneous operation of the shutter button and the like.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a film unit of the present invention.

FIG. 2 is an exploded perspective view showing the first embodiment of the film unit of the present invention.

FIG. 3 is a perspective view showing a second embodiment of the film unit of the present invention.

FIG. 4 is a front view showing a third embodiment of the film unit of the present invention.

[Explanation of symbols]

2 Film unit with lens 4 Front cover 4a, 36, 40 Indicator 4b, 37, 39 indicating the fully open position of the protective cover on the main unit side Index indicating the fully closed position of the protective cover on the main unit side 17 Protective cover 17a, 35, 38 Index opposite to the index on the main unit side on the protective cover side 23 Label seal

Claims (6)

[Claims] 1. A film unit with a lens having a slide-type cover for protecting a taking lens provided on a front surface of a main body, wherein an index is provided on a part of the cover, and the index is provided on the cover when the cover is fully opened. A film unit with a lens, wherein an index is provided at a position on the main body side facing the index. 2. The lens-equipped film according to claim 1, wherein an index is provided at a position on the main body side opposite to the index provided on the cover and the index provided on the cover when the cover is fully closed. unit. 3. The lens-fitted film unit according to claim 1, wherein at least one of the indices is formed integrally with the main body or the cover. 4. The film unit with a lens according to claim 1, wherein at least one of the indices is printed. 5. The film according to claim 1, wherein the index is provided on an upper surface of the film unit.
The described film unit with lens. 6. The image forming apparatus according to claim 1, wherein the index is provided on a front surface of the film unit.
The described film unit with lens.