JPH0519339A - Simplified camera - Google Patents

Abstract

PURPOSE:To stop the winding-up of a film after a shutter button is set under a locked state and the prescribed length of the film is wound in a cartridge after the exposure of a photographic screen. CONSTITUTION:A projection part 10B and a swollen part 10C are provided on an index disk 10 and a swollen part 13D is provided on an actuation member 13. Then, the projection part 10B enters the lower part of the shutter button 3 and prevents the pressing thereof. On the other hand, the swollen part 10C is turned to the upper part of the swollen part 13D and the locking of a winding-up knob 4 by the elevation of the actuation member 13 is released while the the index disk 10 is turned by a prescribed rotating angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera, and in particular, is also called a "shooting-only camera", and is particularly effective for a simple type camera which is preliminarily loaded with a film and which enables immediate photographing.

[0002]

2. Description of the Related Art As is well known, a "shooting-only camera" is a camera in which a film is preliminarily loaded by a maker.
The user uses it only for photographing one loaded film, and after the photographing is finished, the camera sends the film to the photo lab with the film still contained.

Since the film in the camera is rolled up in the cartridge for each exposed screen and shielded from light, the film can be taken out by disassembling the camera in a bright room at the photo lab. The work is extremely efficient because it is available.

[0004]

However, if the film is wound up to the rear end of the cartridge, a so-called "bello-out" operation must be performed to pull the film out of the cartridge when preparing for the development process.

Therefore, it is necessary to stop the winding of the trailing end of the film, and some measures have been taken such as instructing the winding stop position on the indexer of the film.

As a result of solving and improving this point, the present invention provides
The purpose of the present invention is to provide a simple camera that can collect the trailing edge of the film outside the cartridge without fail, and collect it at the developing station.

[0007]

SUMMARY OF THE INVENTION The above-mentioned object is to provide a simple type camera in which an unexposed film loaded in advance in a camera is wound up and stored in a patrone each time it is exposed. This is achieved by a simplified camera characterized in that the film winding is stopped while the rear end of the film is left outside the cartridge.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention is shown in FIGS.

FIG. 1 is an external view of a simplified camera also called a "shooting-only camera" containing 35 mm film (J135), in which 1 is a taking lens, 2 is a viewfinder, 3 is a shutter button, and 4 is a film winding. The upper knob, 5 is an index window of the film counter, 6 is a stroboscopic light emitter, and the number of unexposed screens of the film to be loaded is provided on the exterior paper cover (shown by a chain line) in a so-called remaining number display format. It is displayed in the index window 5 described above.

Reference numeral 7 denotes a collapsible member on which the photographing lens 1 is mounted, and the collapsible member 7 incorporates each member for exposure control located behind the photographing lens 1 and further the objective frame of the finder 2. Is composed of.

When taking a picture, the collapsible member 7 is pushed forward by the release button 8 provided on the front surface of the camera to project toward the front of the camera to set the taking lens 1 to the in-focus position, as shown in FIG.
By pressing and pushing the front surface of the camera, the front surface of the camera is stored in a position substantially flush with the front surface of the camera and automatically locked.

The collapsible member 7 will now be described with reference to FIGS. 2 to 5.
The operating structure of will be described.

FIGS. 3, 4 and 5 are cross-sectional views taken along line AA, BB and CC in FIG. 2, respectively.

The camera has a camera body 100 having a film chamber 101 for accommodating an unexposed film and a patrone chamber 102 for accommodating a patrone P for winding the exposed film, a front cover 110 and a rear cover 120 attached to the front and rear of the camera body 100. Composed of and.

The front cover 110 is fixed to the camera body 100 by engaging a claw and tightening a screw, while the rear lid 120 is a pair of upper and lower hinge projections for the camera body 100.
Although 121 is press-fitted to be openably and closably attached, after the unexposed film is loaded, the rear lid 120 is firmly locked to the camera body 100 by the press-fitting engagement of the locking projection 122, so that the camera body 100 of The inside is made light tight.

The collapsible member 7 is integrally provided with three slide cylinders 7a corresponding to the left and right side portions, and the slide cylinders 7a are fitted to the three slide pins 111 planted on the back surface of the front cover 110. It is built in so that it can be moved in the optical axis direction of the taking lens 1 by sliding it.

Further, when fixing the front cover 110 to the camera body 100, the camera body 100 and the respective slide cylinders 7a.
A compression spring 112 is housed between the compression spring 112 and the compression spring 112, and is urged by the action of the compression spring 112 so that the collapsible member 7 always projects forward of the camera.

The collapsible member 7 has a slit portion 7b provided in the rear of the taking lens 1 for accommodating shutter blades and diaphragm plates, which will be described later, as exposure control members, and a light shielding frame 7c formed behind the shutter blade. In the projecting position shown in FIG. 3, the image of the subject by the taking lens 1 is correctly formed on the film surface F, the viewfinder field of view is formed by the objective frame, and at the same time, the light-shielding frame 7c causes irregular reflection of incident light that enters the screen. It is supposed to be prevented.

Further, the collapsible member 7 is stored inside the camera by pressing the front surface thereof against the urging force of the compression spring 112, and at that position, the locking portion 7D at the rear end is released as shown in FIG. Elastic locking claw 8a with which the button 8 is integrated
It is fixed by being engaged with the so-called collapsed state.

When the collapsible member 7 is projected toward the front of the camera, that is, when the taking lens 1 is at the focus position, the frame of the collapsible member 7 is the shutter button 3 as shown in FIG. 5 (a).
When it is in the retracted position, the frame of the collapsible member 7 moves to the lower portion of the shutter button 3 when the shutter button 3 is pressed to take a picture. It is also designed to prevent pressing and prohibit photography.

In order to release the lock of the retractable member 7 in the retracted position, the release button 8 is pressed and the locking claw 8a is attached to the support shaft 8b.
It is performed by rotating and retracting in the counterclockwise direction with the fulcrum as a fulcrum.

FIG. 6 shows the respective operating structures of the film winding and shutter incorporated in the camera and the film counter associated therewith.

FIG. 6A shows each of the above-mentioned operating structures, and FIG. 6B shows a main part of the view DD.

In the figure, reference numeral 10 is an index board rotatably supported by the camera body, and the outer circumference thereof is a gear portion 10A having the number of teeth corresponding to the number of screens to be displayed.

Reference numeral 11 is a sprocket gear that meshes with perforation of the loaded film, and 12 is a drive member coaxial with the sprocket gear 11.

The driving member 12 is the index board in order from the top.
A feed pin 12A meshing with the gear 10A of the gear 10, a notch 12B, and a cam 12C are formed, and the sprocket gear 11 rotates in the counterclockwise direction as the film is wound. Send index board 10 clockwise by one tooth.

On the other hand, 13 is an operating member supported by a shaft 13A so as to be rotatable and vertically movable. The operating member 13 has a projection 13B which engages with a notch 12B of the driving member 12, and a lower surface of the hoisting knob 4. The ratchet surface 4A is provided with a claw portion 13C.

The actuating member 13 is constantly urged counterclockwise by a torsion spring 14 which also functions as a compression spring with the shaft 13A as a fulcrum. Both are stopped by being stopped by the stopper 17 of the camera body.

In this state, the actuating member 13 has the protrusion 13B.
Is engaged with the notch 12B of the drive member 12, and the claw portion 13
C is engaged with the ratchet surface 4A of the winding knob 4 to prevent film winding.

When the shutter button 3 is pressed from the above-mentioned state, the actuating member 13 first descends against the torsion spring 14 and the falling portion 15 moves to the position 15A shown by the broken line, whereby the protrusion 13B is cut out 12B. Since it is disengaged from the engagement with, the operating member 13 rotates counterclockwise,
Move to 15B.

Position 15A to position 15B of the falling portion 15
During the movement to, the falling portion 15 rotates the shutter blade 19 closing the aperture 1A of the taking lens 1 counterclockwise about the guide pin 20 by the biasing force of the tension spring 18 to reciprocate. , Perform exposure.

On the other hand, as the actuating member 13 is lowered, the locking by the claw portion 13C is released, so that the hoisting knob 4 can be rotated, and the sprocket gear 11 starts to rotate by the movement of the film and the index window 5 The index displayed in 1
The screen portion is subtracted, and at the same time, the cam 12C pushes up the protrusion 13B to rotate the operating member 13 in the clockwise direction.

When the falling portion 15 of the actuating member 13 returns from the position 15B to the position 15A as the operating member 13 rotates in the clockwise direction, the shutter blade 19 uses the limiting wall 21 as a fulcrum to form the elongated hole 19A. The rising portion is kept closed with the aperture 1A slid on the guide pin 20 and rotated and retracted in the clockwise direction.
15 is engaged again with the stopper 17, and the respective rotations of the sprocket gear 11 and the winding knob 4 are locked again to complete the film winding.

The aperture 1A has a shutter blade 19 and an aperture plate 30 which is housed in the slit portion 7b of the collapsible member 7.

That is, the diaphragm plate 30 is assembled in a state of being urged clockwise by the torsion spring 32 with the support shaft 31 as a fulcrum, and is attached to the switching lever 33 driven by the strobe charging switch 6A on the front face of the camera shown in FIG. Abutted. When photographing is performed without using the stroboscopic light emitting device 6 and thus the strobe charging switch 6A is in the OFF state, the switching lever 33 occupies the position shown in the figure, whereby the aperture 1A is illuminated by the light of the photographing lens 1. It is located on the axis and forms the aperture diameter of the small aperture.

On the other hand, when the strobe charging switch 6A is turned on, the switching lever 33 is vertically lifted from the position shown in the drawing and retracted to rotate the diaphragm plate 30 clockwise. Accordingly, the aperture 1A is moved and retracted from the optical axis of the taking lens 1, and the taking lens has an aperture diameter of an open diaphragm formed by the unique aperture 1B.

Since the shutter blades 19 and the diaphragm plate 30 are both incorporated in the collapsible member 7 and therefore can be arranged close to the taking lens 1, the exposure efficiency is high and the reduction in the amount of peripheral light is small. You can take color photos.

Note that the shutter blades 19 and the diaphragm plate 30 are retracted from the positions operated by the above-mentioned operating mechanisms as the retractable member 7 is stored in the camera, and are operated as shown by the protrusion of the retractable member 7. It is set to the receiving position.

After the exposure of the final screen "1" displayed on the index window 5 is completed, the camera is prevented from pressing the shutter button 3 and the film winding knob 4 can be continuously rotated. The winding of the hoisting knob 4 is automatically stopped after it has been wound in a predetermined length.

Therefore, the length of the film wound on the patrone P is regulated by the continuous rotation of the film winding knob 4, so that the trailing end of the film is left outside the patrone P by an arbitrary length and the winding is stopped. You can

The film winding operation after the exposure of the final screen "1" will be described below.

FIG. 7 (a) shows an essential part of the film winding mechanism described above, and FIG. 7 (b) shows an EE cross section thereof, and the index board 10 is provided on the upper surface in contact with the gear portion 10A. The protrusion 10B having an arc length is provided in the horizontal direction, and the protrusion 10C having an arc length slightly shorter than the protrusion 10B is provided on the lower surface in the vertical direction.

Further, the actuating member 13 is provided with a raised portion 13D on the upper surface thereof at a position corresponding to the raised portion 10C.

While the final screen "1" is displayed in the index window 5 from the start mark "S", the projecting portion 10B and the raised portion 10C are located apart from the shutter button 3 or the raised portion 13D. Although not involved in the winding function, when the film winding knob 4 starts rotating after the exposure of the final screen "1" is finished, the protrusion 10B enters the lower part of the shutter button 3 as the index board 10 rotates and the shutter is released. The ridge 10C rotates above the ridge 13D until the pressing of the button 3 is stopped and the operating member 13 lowered by the pressing of the shutter button 3 starts to rise again with the film winding operation. And prevents the actuating member 13 that is biased by the compression spring 14 from rising.

Therefore, the film winding knob 4 can continuously wind up the film without being locked by the claw portion 13C of the actuating member 13, and its operation can be performed by the rotation of the index board 10 as described above. It continues until 10C moves from the upper portion of the raised portion 13D and retracts.

When the raised portion 10C is retracted, the raised portion 13D and thus the operating member 13 immediately rises to lock the film winding knob 4 with the claw portion 13C and stop the film winding.
Even if the winding is stopped, the pressing of the shutter button 3 is still blocked and the use of the camera is prohibited.

As a result, the above-mentioned protrusion 10B and ridge 10 are formed.
By setting the arc length of C to a predetermined length, the length of the film wound in the patrone P can be regulated. As a result, the length of the film left outside the patrone P can be arbitrarily set. It can be set to.

[0048]

According to the present invention, the winding of the photographed film stored in the cartridge can be automatically stopped while leaving the rear end portion only by improving the parts which are extremely simple. As a result, the handling is simplified for the user, while the development processor is provided with a simplified camera that is efficient in processing work and does not require so-called "bending out" work.

[Brief description of drawings]

FIG. 1 is an external perspective view of a simplified camera according to the present invention.

FIG. 2 is a front view of the camera.

FIG. 3 is a vertical sectional view of the camera.

FIG. 4 is a cross-sectional view of a main part of the camera.

FIG. 5 is a cross-sectional view of the camera.

FIG. 6 is a main part diagram showing an operating mechanism of the camera.

FIG. 7 is a detailed explanatory diagram of the operating mechanism.

[Explanation of symbols]

 1 Photographic lens 1A, 1B Aperture 2 Viewfinder 3 Shutter button 4 Winding knob 5 Exponential window 6 Strobe light emitter 6A Charging switch 7 Cavity member 7a Slide cylinder 7b Slit part 7C Light-shielding frame 7D Locking part 8 Release button 8a Locking claw 10 Index board 10A Gear part 10B Projection part 10C, 13D Raised part 11 Sprocket gear 12 Drive member 13 Actuating member 13A Shaft 13B Protrusion 13C Claw part 14 Compression spring 19 Shutter blade 30 Aperture plate

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[Procedure amendment]

[Submission date] January 28, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

[0007]

SUMMARY OF THE INVENTION The above-mentioned object is to provide a simple type camera in which an unexposed film loaded in the camera in advance is taken up and stored in a patrone each time it is exposed. If the trailing edge of the film is not completely wrapped around the cartridge,
Continuous winding is stopped, and film winding is not possible after that
This is achieved by a simplified camera characterized by being capable of performing.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0019

[Correction method] Change

[Correction content]

Furthermore the collapsed member 7 is stored inside the camera by pressing the front against the bias of the compression spring 112, retracted as shown in FIG. 4 in its retracted position
Engaging portion 7D of the member 7 rear end, integrally to the release button 8
The elastic locking claws 8 a provided are engaged and fixed, and the so-called collapsed state is established.

Claims (1)

Claim: What is claimed is: 1. A simple camera in which an unexposed film loaded in a camera in advance is wound up and stored in a patrone each time it is exposed, and it is possible to continuously wind the film after the final screen is exposed. A simplified camera, characterized in that the film winding is stopped while the rear end of the film is left outside the cartridge.