JPH0973127A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent double exposure by inhibiting shutter release after rewinding photographic film and to execute next exposure by releasing the inhibition of the shutter release interlocked with the opening operation of a cartridge cover so that a film cartridge may be taken out in a camera using the film cartridge. SOLUTION: This camera is provided with a rewinding button 33 operated in the case of rewinding the exposed photographic film in the film cartridge, a shutter lock member 30 inhibiting the releasing operation of a shutter button by moving interlocked with the operation of the button 33, a holding means 21c holding a shutter release inhibiting position, and a canceling means 21 canceling the holding of the release inhibiting position of the member 30 by the holding means 21c interlocked with the opening operation of the cartridge cover.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera that uses a film cartridge that accommodates a photographic film wound around a spool and has a light-shielding lid that opens and closes a film feed opening through which the photographic film passes. The present invention relates to a mechanism that prohibits release and prevents exposure.

[0002]

2. Description of the Related Art In recent years, a film cartridge having a film delivery port and a light-shielding lid for opening and closing the film delivery port has been proposed. This film cartridge is
When the light-shielding lid is closed, the photographic film is wound around the spool up to the tip portion and stored in the film cartridge to keep the light-shielding state. ing.

On the other hand, various cameras using such a film cartridge have been proposed. This type of camera is provided with a cartridge chamber for accommodating a film cartridge and a cartridge lid for opening and closing the cartridge chamber, and is further engaged with a spool of a film cartridge accommodated in the cartridge chamber to feed and wind the photographic film. It has a drive member for performing the take-out drive, and an opening / closing member that engages with the light-shielding lid to open and close it.

Further, in the above-mentioned camera, when the photographic film is sent out from the film cartridge and the photographing is sequentially performed and the exposure is completed, the rewind button is operated to rewind the sent photographic film into the film cartridge, The cartridge lid is opened and the film cartridge is taken out. At that time, the state display of the film cartridge is switched to the "exposed" state, and the film cartridge with the "exposed" state display is returned to the cartridge chamber. Double exposure is prevented by installing a mechanism that does not allow loading.

[0005]

However, in a camera using a film cartridge as described above, after rewinding the exposed photographic film into the film cartridge,
If the user forgets to take this film cartridge out of the cartridge chamber and operates the shutter button as it is, the photographic film in the film cartridge is re-fed and double exposure becomes possible.

Further, in the conventional type in which the photographic film is stored in the film cartridge, the tip portion of the photographic film is pulled out from the cartridge in the unused state, and the tip portion is engaged with the take-up shaft of the camera. Then, the film is pulled out and sequentially exposed for photography, and when rewound, the tip part is also stored in the patrone so that it cannot be pulled out again, and a flocking shading material is provided so that light does not enter the patrone. It is provided. For this reason, even if the shutter button is pressed and the shutter is released after the film rewinding is completed, the photographic film that has been taken has no effect.

However, in a film cartridge having a light-shielding lid which holds the photographic film wound around a spool as described above and opens and closes a film delivery port through which the photographic film passes, the light-shielding lid is closed to prevent light. The photographic film is sent out when the shutter button is pressed and the shutter is released if the light-blocking lid is open even after the film rewinding is completed. Even if it does not, there is a problem that light is emitted from the film delivery port to the photographic film that has already been photographed inside.

The present invention has been made in view of the above circumstances, and after the photographic film is rewound into the film cartridge after photographing, exposure is performed in a state where the film cartridge is not taken out and the light-shielding lid is opened. It is intended to provide a camera that is prohibited.

[0009]

In the camera of the present invention which has solved the above-mentioned problems, the shutter release is prohibited during the film rewinding, and the shutter is released while the light shielding lid of the film cartridge is opened even after the film rewinding is completed. It is characterized in that a shutter release prohibiting means for prohibiting release is provided.

In the above camera, the photographic film sent out from the film cartridge after shooting is rewound, and when the film cartridge is taken out from the camera, the film is rewound by the shutter release prohibiting means and after the rewinding is completed. Even if there is, the shutter release is prohibited while the light-shielding lid is open to prevent double exposure and light from entering the film cartridge.

In another camera of the present invention, a rewind button which is operated when rewinding the exposed photographic film into the film cartridge, and a shutter button release which moves in conjunction with the rewind operation by the rewind button. A shutter lock member for prohibiting operation, a holding means for holding the release prohibition position of the shutter lock member, and a shutter lock member release prohibition position of the shutter lock member by the holding means after the light shielding lid is closed in association with the opening operation of the cartridge lid. And a releasing means for releasing the holding.

The releasing means is composed of an ejector for urging the film cartridge inserted in the cartridge chamber in the take-out direction, and the holding means is formed of an ejector and a projection for engaging with a part of the shutter lock member. Is preferred.

In the above-mentioned camera, when the photographic film is sent out from the loaded film cartridge, the exposure is sequentially performed, and the photographing is finished, the rewind button is operated to rewind the sent photographic film into the film cartridge. The shutter lock member is moved in response to the operation of the rewind button to prohibit the shutter button release operation to prevent double exposure, and the release prohibition position of the shutter lock member is held by the holding means.

When the cartridge lid is opened to take out the film cartridge, the release means interlocked with the opening operation of the cartridge lid releases the release-prohibited state by the holding means of the shutter lock member after closing the light-shielding lid. It enables photographic exposure to the film cartridge loaded in the.

Further, when the releasing means is constituted by an ejector for pushing out the film cartridge in response to the opening operation of the cartridge lid and the holding means is constituted by a projection formed on the ejector, the ejector is interlocked with the opening operation of the cartridge lid. Pushes out the film cartridge and releases the shutter lock member release prohibition state.

Still another camera of the present invention comprises a rewind button which is operated when rewinding the exposed photographic film into the film cartridge, and a shutter button which moves in association with the rewind operation by the rewind button. A shutter lock member for prohibiting a release operation, a holding means for holding a release prohibiting position of the shutter lock member, and a holding means for closing the light shielding lid in conjunction with an unlocking operation of a key member for locking the closed position of the cartridge lid. And a releasing means for releasing the holding of the shutter lock member at the release-prohibited position by the means.

In the above camera device, when photographing is completed and the rewind button is operated to rewind the photographic film into the film cartridge, the shutter lock member is moved in response to the operation of the rewind button to release the shutter button. Is prohibited to prevent double exposure, and the release prohibiting position of the shutter lock member is held by the holding means.

When the key member that locks the cartridge lid is unlocked in order to take out the film cartridge, the shutter lock member holding means after the light blocking lid is closed by the releasing means interlocking with the key member unlocking operation. Release the release prohibition state by
It enables photographing exposure for the film cartridge to be loaded next.

Further, in the camera as described above, the shutter lock member is linked to the barrier that opens and closes the front of the taking lens, and is linked to the lock position when the barrier is closed and to the unlock position when the barrier is opened. Good.
In this case, when the barrier is closed, the shutter lock member is moved to the release-prohibited position to disable photography, and when the barrier is opened, the release-prohibition is released and photography can be performed.

The prohibition of the shutter release is as follows.
The shutter release may be prohibited in conjunction with the operation of the rewind button or the automatic rewind mechanism at the time when a predetermined number of images have been shot as described above. The release of the shutter release prohibition is performed in cooperation with the operation related to the removal of the film cartridge and the closing of the light-shielding lid as described above. The prohibition state may be released, and the cartridge lid may be automatically opened.

[0021]

According to the camera of the present invention, the shutter release is prohibited in association with the rewinding of the photographic film, and the double exposure in which the photographic film which has been exposed once and then fed out again is exposed is prevented. Also, it is possible to prevent light from entering when the light-shielding cover is open. In addition, the next shooting can be performed by releasing the shutter release prohibition state in response to the opening operation of the cartridge lid to unlock the exposed film cartridge, the unlocking of the key member, etc., and the reliability of the camera is improved. .

In particular, the ejector for pushing out the film cartridge or the key member for locking the cartridge lid is used, so that the structure can be simplified. Furthermore, if the shutter release is prohibited according to the opening / closing operation of the barrier that opens and closes the front of the taking lens, the mechanism for double exposure prevention is effectively used and the barrier is not completely opened. The exposure can be easily prevented.

[0023]

DETAILED DESCRIPTION OF THE INVENTION A first embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view of the bottom side of the camera showing a loaded state of a film cartridge, FIG. 2 is a perspective view of a storage portion of the film cartridge, FIG. 3 is a perspective view of a main part mechanism of a shutter lock device, and FIG. 4 is a release prohibition thereof. 5 and 6 are sectional views and bottom views of the shutter button portion, and FIG. 7 is a perspective view showing a barrier on the front surface of the camera.

The camera 10 has a cartridge chamber 12 for accommodating the film cartridge 1 at one end of the bottom of the camera body 11.
The opening of the cartridge chamber 12 is opened and closed by the cartridge lid 13. One end of the cartridge lid 13 is rotatably supported on the side end of the bottom surface of the camera body 11.

As shown in FIG. 2, the film cartridge 1 is provided with a photographic film (not shown) on a spool 3 provided inside a cartridge main body 2 which is formed by joining divided cases of a resin molded product. The tip part is also wound and stored in a roll shape. A slit-shaped film outlet 4 is formed on the side surface of the cartridge body 2, and a light-shielding lid 5 for opening and closing the film outlet 4 is rotatably supported inside the film outlet 4. This light-shielding lid 5 is rotatably provided in parallel with the spool 3, and is inserted into the back of the cartridge chamber 12 (the upper surface in FIG. 2;
The shaft end 5a exposed to the bottom surface is provided with a notch 5b for driving the opening and closing, and an opening / closing member (not shown) installed at the back of the cartridge chamber 12 is engaged with the shaft end 5a. It is opened and closed by rotating it. On the other hand, a notch 3b (key groove) is provided in the shaft end 3a exposed on the end face of the spool 3 which is inserted into the cartridge chamber 12 at the back.
A driving member (not shown) installed in the inner part of the cartridge chamber 12 is engaged with 3b to feed and rewind the photographic film.

A key member 20 for opening and closing the cartridge lid 13 is installed on the lower surface of the camera body 11. The key member 20 is for locking the cartridge lid 13 in the closed state, and the tip key portion 20a is the cartridge lid.
It is locked to the locking portion 13a of 13. The locking portion 13a is provided in a groove shape on the edge wall of the cartridge lid 13.

The key member 20 has an intermediate portion supported by the camera body 11 and is rotatable, and has a projecting operation portion 20 at one end.
b is connected, and the tip key portion 20a is connected on the opposite side. Also, the camera body at the position facing the operation unit 20b.
An arcuate guide groove 14 is formed on the bottom surface of 11 so that the operation portion 20b can be moved.

In the cartridge chamber 12, an ejector 21 for lifting the cartridge 1 inserted when the cartridge lid 13 is opened by a predetermined amount is installed. The ejector 21 is disposed at a position lateral to the cartridge insertion space of the cartridge chamber 12 and extends in the axial direction (vertical direction of the camera 10), and the film cartridge 1 is provided at one end on the back side.
Has a locking piece 21a that is bent so as to be able to contact the end surface of the cartridge, and the other end 21b is provided so as to face the opening of the cartridge chamber 12, and the other end 21b is provided so as to project on the cartridge lid 13. The pressing piece 13b can be contacted. Further, a spring 22 is connected to the ejector 21 and is biased in the protruding direction.

The ejector 21 is pushed against the spring 22 by the pressing piece 13b when the cartridge lid 13 is closed, and the film cartridge 1 pushed in the same manner has a drive member at the shaft end 3a of the spool 3 and a light-shielding lid. Shaft end 5a of 5
An opening / closing member is engaged with each. Further, when the cartridge lid 13 is opened, the ejector 21 moves its spring 22
The film cartridge 1 is lifted by the urging force of 1 to disengage the drive member and the opening / closing member from the film cartridge 1, and the film cartridge 1 is projected by a predetermined amount so as to be easily taken out from the cartridge chamber 12.

The locking piece 21a of the ejector 21 is provided with a projection 21c projecting in the sliding direction and is linked to a shutter lock mechanism described later.

Next, the shutter lock mechanism will be described. The shutter button 25 provided on the upper surface of the camera body 11 is integrally formed with the camera body 11 (front cover) as shown in FIGS. The plate-shaped elastic piece 25b is connected to one end of the substantially circular button portion 25a, the base end portion of the elastic piece 25b is connected to the camera body 11, and the button portion 25a and the elastic piece 25b are surrounded. Has a void formed therein. Further, a central projection 25c protruding downward is provided on the center lower surface of the button portion 25a, and a plate-like linking portion 25d is provided on the lower surface of the elastic piece 25b so as to be elastic with respect to the pushing operation of the button portion 25a. As the piece 25b deforms, the linkage 25
The tip of d is in contact with the operating piece 26 of the shutter mechanism so as to perform exposure.

Further, the button portion of the shutter button 25 described above
A switch 27 is attached to the inner frame 15 below the leading end of the 25a, and the switch 27 is operated in response to the push-in release operation of the button portion 25a so as to control the operation of the film winding motor and the like. There is.

Below the button portion 25a of the shutter button 25, a shutter lock member 30 as a shutter release prohibiting means for disabling the pushing operation is provided.
Is installed. The shutter lock member 30 is pivotally supported on the inner frame 15 by a pin 32 extending in the vertical direction. The shutter lock member 30 is rotatably supported about the pin 32, and a boss portion projecting upward on the upper surface thereof. 30a is provided. This shutter lock member 30
With respect to the rotation, the front end of the boss portion 30a is in the release prohibition state and the release state according to the change of the contact position of the shutter button 25 with the lower surface of the button portion 25a.

That is, the position of the boss portion 30a shown by the solid line in FIG. 5 is the release position at which the shutter button 25 can be released at a position corresponding to the concave portion of the button portion 25a.
At the first lock position R1 in which the boss portion 30a has moved to the right, the boss portion 30a comes into contact with the lower surface of the outer peripheral wall of the button portion 25a. At this position, the boss portion 30a comes into contact with the lower end of the button portion 25a.
In the second lock position R2 in which the boss portion 30a has moved to the left in the release prohibited state in which the pushing operation of the button cannot be performed, the position is in contact with the lower surface of the central protrusion 25c of the button portion 25a. The release operation of the button portion 25a is prohibited by the contact with the tip of the boss portion 30a.

As shown in FIG. 3, the shutter lock member 30, which rotates about the pin 32, has a first engaging portion 30b on the tip side of the boss portion 30a and the first engaging portion. A second engaging portion 30c is projected at the end opposite to 30b, a spring piece 30d is connected to the side, and a torsion spring 31 is installed in the shutter lock member 30 to reset the shutter lock member 30 in the reset direction. Being energized. Then, the first engaging portion
A part of the rewind button 33 is engaged with 30b, a part of the barrier 35 is engaged with the second engaging portion 30c, and the spring piece 30d is The projection 21c provided on the ejector 21 is linked so as to be locked.

Specifically, the rewind button 33 is the camera body.
11 is provided so as to be slidable in the lateral direction, and a locking projection 33a that engages with the first engaging portion 30b is provided at the inner end portion. When the rewind button 33 is operated in the direction of arrow A and the rewind operation is performed, the locking projection
33a is for engaging the first engaging portion 30b and rotating the shutter lock member 30 in the direction of arrow B to the first lock position R1.

Further, the spring piece 30d of the shutter lock member 30 can be engaged with the projection 21c of the ejector 21 which is being pushed in, and the ejector 21 has moved in the direction of arrow D with the cartridge lid 13 open. The protrusion 21c
And the spring piece 30d are disengaged.

Furthermore, when the boss portion 30a is in the second lock position R2 and the release position with respect to the rotation of the shutter lock member 30, as shown in FIG.
21c is located outside, and the spring piece 30d is deformed by the deformation of the spring piece 30d while the boss portion 30a is rotated in the direction of arrow B so that the boss portion 30a becomes the first lock position R1.
Change the locked state from the outside of 21c to the inside (see Fig. 4),
It is provided so as to hold the first lock position R1.

The spring piece of the shutter lock member 30
Release position locked with 30d (1st lock position R1)
The projecting portion 21c for holding the above constitutes the holding means, and the ejector 21 for moving the projecting portion 21c in cooperation with the cartridge lid 13 to release the release prohibition position constitutes the releasing means.

On the other hand, the barrier 35 is slidably arranged on the front surface of the camera body 11 (front cover) as shown in FIG. 7, and a makeup front cover 36 is further installed in front of the barrier 35. The barrier 35 opens and closes the front of the taking lens 37 by operating the knob 35b from the front cover 36 side. At the upper end of the barrier 35, the second portion of the shutter lock member 30 protruding inward of the camera body 11 is provided.
A locking projection 35a that engages with the engaging portion 30c is provided.

When the barrier 35 is in the closed position, the locking projection 35a is separated from the second engaging portion 30c, and the shutter lock member 30 is rotated in the direction of arrow C by the urging force of the torsion spring 31. Then, the boss portion 30a moves to the second lock position R2. On the other hand, when the barrier 35 is at the fully open position, the locking projection 35a contacts the second engaging portion 30c, and the shutter lock member 30 is rotated in the direction of arrow B to release the boss portion 30a. It is a position.

Here, as shown only in FIG. 8, the key member 20 is connected to the key portion 20a as a linkage structure for switching the state display of the film cartridge 1 to exposed and opening and closing the light shielding lid 5. A gear portion 20c is provided adjacent to it. FIG. 8 shows an example of a drive gear mechanism linked to the gear portion 20c. In this figure, the opening / closing mechanism of the light shielding lid 5 of the film cartridge 1 is shown, and the state display switching mechanism is omitted.

A lower gear 51 that meshes with the gear portion 20c is provided, and an upper gear 53 is provided on the lower gear 51 so as to rotate integrally via a vertical axis 52, and a part of the upper gear 53 is provided at a predetermined position. Gear 54 is installed. On the other hand, the opening / closing member 50 is rotatably supported by an internal frame (not shown), and a toothless gear 55 capable of meshing with the partial gear 54 is provided at the upper end of the opening / closing member 50. One end is attached.

In the opening / closing mechanism of the light-shielding lid 5, when the key member 20 is rotated in the unlocking direction A, the lower gear 51 is rotated by the gear portion 20c, and accordingly, the partial gear 54 is meshed with the toothless gear 55. However, the urging force of the ohmic spring 56 exceeds the neutral point and the biasing force acts in the closing direction to fully close the light-shielding lid 5. After the closing of the light shielding lid 5 is completed, the lock of the cartridge lid 13 is released and the film cartridge 1 is taken out.

On the contrary, when the key member 20 is rotated in the locking direction B, the partial gear 54 meshes with the toothless gear 55 and rotates in the opening direction in the opposite direction to the above, and when the ohmic spring 56 exceeds the neutral point, The biasing force acts in the opening direction to fully open the light shielding lid 5.

As described above, the drive member for driving the spool disposed at the bottom (back) of the cartridge chamber 12 engages with the shaft end 3a of the spool 3 to transmit the rotation of the motor (not shown). Then, the spool 3 is driven to rotate normally and reversely. Further, the mechanism for meshing with the upper gear 53 which rotates in association with the unlocking operation of the key member 20 causes the spool 3 to be driven in the reverse direction for displaying the exposed state.

Next, the operation of the present example configured as described above will be described. When the film cartridge 1 is inserted into the cartridge chamber 12 from the state shown in FIG. 1 and the cartridge lid 13 is closed and the key member 20 is operated to the lock position, the protrusion 21c of the ejector 21 engages with the spring piece 30d as shown in FIG. Pushed into a possible position.

Here, when the barrier 35 is closed, the boss portion 30a of the shutter lock member 30 is in the second lock position R2, and the shutter button 25 release operation is prohibited. When the barrier 35 is slid to the fully open position for shooting, the shutter lock member 30 rotates in the direction of arrow B, the boss portion 30a moves to the release position, and the shutter button 25 can be released for exposure. You can do it.

When the photographic film is sequentially exposed in accordance with the feeding of the photographic film from the film cartridge 1 and the photographing is completed, the rewind button 33 is operated to rewind the photographic film. By operating the rewind button 33, the shutter lock member 30 is further rotated in the direction of arrow B, the boss portion 30a is moved to the first lock position R1, and the shutter button 25 release operation is prohibited. In this shutter release prohibited state, the holding means in which the spring piece 30d has passed over the protrusion 21c of the ejector 21 and is locked from the opposite direction prevents the shutter lock member 30 from rotating in the direction of arrow C and the release prohibited state. Is held, and this state is continued even when the rewinding is completed.

Next, in order to take out the rewound film cartridge 1 from the cartridge chamber 12, the key member 20 is operated to the release position to unlock the cartridge lid 13, and the cartridge lid 13 is springed by the ejector 21. The ejector 21 lifts the film cartridge 1 by a predetermined amount, and the ejector 21 also moves upward by a predetermined amount while being opened by being biased in the opening direction by 22.

By the movement of the ejector 21 as the releasing means, the engagement between the projection 21c and the spring piece 30d is released, and the shutter lock member 30 is rotated in the direction of arrow C by the torsion spring 31 and the shutter release prohibited state. Is released. As a result, a new film cartridge 1 is loaded next, and when the barrier 35 is fully opened, photographing exposure can be performed by the release operation of the shutter button 25.

The linking structure of the shutter lock member 30 in the above-described example can be variously changed, and the shutter release prohibition state is set in association with the operation of the rewind button 33, and the resetting is performed on the cartridge lid 13. The design can be appropriately changed to a mechanism that is linked to the opening operation.

Next, a second embodiment of the present invention will be described with reference to the drawings. This example is an example in which the lock is released in synchronization with the operation of the key member 20. 9 is a perspective view of the storage portion of the film cartridge, FIG. 10 is a perspective view of a main part mechanism of the shutter lock device, FIG. 11 is a perspective view of the shutter in a release prohibited state, and FIG. 12 is a sectional view of the shutter button portion.

The shutter lock mechanism of this embodiment will be described. The bearing portion of the key member 20 for locking the cartridge lid 13
20c includes a rotating shaft 23 extending upward to a position serving as a center of rotation.
Is erected. The rotation shaft 23 rotates integrally with the rotation of the key member 20.

Further, the button portion 25a of the shutter button 25
A shutter lock member 130 as a shutter release prohibiting means for prohibiting the release operation is installed under the shutter. The shutter lock member 130 is slidably supported in the left and right direction by the engagement of the elongated hole 130d and the pin 15a in the inner frame 15, and a boss portion 130a protruding upward is provided on the central upper surface thereof. With respect to the sliding of the shutter lock member 130, the tip of the boss portion 130a is in the release prohibition state and the release state according to the change of the contact position of the shutter button 25 with the lower surface of the button portion 25a.

That is, the boss portion 130a shown by the solid line in FIG.
The position of is the release position where the shutter button 25 can be released at a position corresponding to the concave portion of the button portion 25a, but at the first lock position R1 where the boss portion 130a is moved to the right, the outer peripheral wall of the button portion 25a is It is a release-prohibiting position where it abuts the lower surface, and similarly, it is a release-prohibiting position where it abuts the lower surface of the central projection 25c of the button portion 25a at the second lock position R2 where the boss portion 130a has moved to the left.

The shutter lock member 130 is shown in FIG.
As shown in, the lock claw 130c has an engaging portion 130b extending rearward and is connected to one end laterally from one end. A spring 131 is connected to the shutter lock member 130 and is biased in the reset direction. A part of the rewind button 33 is locked to the engaging portion 130b, and the lock claw 130c is fixed to the upper end of the rotary shaft 23 provided upright on the key member 20. The stop lever 24 is linked so as to be locked.

Specifically, the rewind button 33 is the camera body.
A locking projection 33a is provided so as to be slidable in the lateral direction with respect to 11, and the inner end of the locking projection 33a is engaged with the engaging portion 130b of the shutter lock member 130. This rewind button
When 33 is operated in the direction of arrow A and the rewinding operation is performed, the locking protrusion 33a engages with the engaging portion 130b to move the shutter lock member 130 in the direction of arrow B to the first lock. It is operated to slide to position R1.

Further, the lock claw 130c of the shutter lock member 130 is engaged with the tip of the locking lever 24 corresponding to the turning position of the turning shaft 23 when the key member 20 is in the lock position as shown in FIG. When the rotation shaft 23 rotates in the direction of arrow D by unlocking the cartridge lid 13 by the key member 20, the engagement between the tip end of the locking lever 24 and the lock claw 130c can be achieved. Come off.

That is, when the boss portion 130a is in the second lock position R2 and the release position with respect to the sliding of the shutter lock member 130, the lock claw 130c and the lock lever 24 are as shown in FIG. It is not locked and the boss 130a is the first
As the lock claw 130c and the locking lever 24 are deformed while sliding in the direction of the arrow B to reach the lock position R1, both are locked as shown in FIG. 11 and hold the first lock position R1. It is provided.

Then, the shutter lock member 130 is locked to the lock claw 130c to release the release position (first lock position).
The locking lever 24 holding R1) constitutes a holding means, and the mechanism for rotating the locking lever 24 in cooperation with the unlocking operation of the key member 20 to release the release prohibition position constitutes the releasing means. ing.

On the other hand, the locking projection 35a at the upper end of the barrier 35 formed in the same manner as in the previous example is locked at one end of the interlocking lever 34. An intermediate portion of the interlocking lever 34 is pivotally supported so that the interlocking lever 34 can swing, and the other end of the interlocking lever 34 can be locked to an end of the shutter lock member 130 opposite to the lock claw 130c.

When the barrier 35 is in the closed position, the locking projection 35a is separated from the interlocking lever 34, and the shutter lock member 130 slides in the direction of arrow C by the urging force of the spring 131, and the boss portion. 130a moves to the second lock position R2. On the other hand, when the barrier 35 is in the fully open position, the locking projection 35a contacts the interlocking lever 34, and the shutter lock member 130 slides in the direction of arrow B to bring the boss portion 130a to the release position. Is.

Next, the operation of the present example configured as described above will be described. Film cartridge 1 in the cartridge chamber
When the key member 20 is operated to the lock position by inserting the cartridge lid 13 into the cartridge lid 13 and closing the cartridge lid 13, the locking lever 24
Rotates to a position where it can be engaged with the lock claw 130c of the shutter lock member 130.

Here, when the barrier 35 is closed, the boss portion 130a of the shutter lock member 130 is in the second lock position R2, and the shutter button 25 release operation is prohibited. When the barrier 35 is slid to the fully open position for shooting, the shutter lock member 130 slides in the direction of arrow B, the boss portion 130a moves to the release position, and the shutter button 25 can be released for exposure. You can do it.

When the photographic film is sequentially exposed in accordance with the feeding of the photographic film from the film cartridge 1 and the photographing is finished, the rewind button 33 is operated to rewind the photographic film. By operating this rewind button 33, the shutter lock member 130 is further slid in the direction of arrow B, the boss portion 130a is moved to the first lock position R1, and the shutter button 25 release operation is prohibited. In this shutter release prohibited state, the tip of the lock claw 130c is the locking lever.
By locking the shutter lock member 130 beyond 24, the shutter lock member 130 is prevented from sliding in the direction of arrow C to maintain the release prohibition state, and this state is maintained even when the rewinding is completed. Will continue.

Next, in order to take out the rewound film cartridge 1 from the cartridge chamber 12, when the key member 20 is operated to the releasing position to unlock the cartridge lid 13, the cartridge lid 13 is springed by the ejector 21. The film cartridge 1 is opened by being urged in the opening direction by the ejector 22, and the ejector 21 raises the film cartridge 1 by a predetermined amount.

The rotation of the key member 20 rotates the locking lever 24 to release the locking with the lock claw 130c, and the shutter lock member 130 slides in the direction of arrow C by the spring 131 to release the shutter. Retention of the prohibited state is released. As a result, a new film cartridge 1 is loaded next, and when the barrier 35 is fully opened, photographing exposure can be performed by the release operation of the shutter button 25.

The linking structure of the key member 20 and the shutter lock member 130 in the above example can be variously changed.
The shutter release prohibited state is set in association with the operation of the rewind button 33, and the reset is performed by the key member.
The design can be changed to a mechanism that is linked to the unlocking operation of 20.

Further, in the above example, the shutter release is mechanically prohibited, but in the camera in which the operation of the shutter mechanism is controlled by the control circuit (microcomputer), after the film rewinding is completed, Also, the present invention can be applied by creating a program that prohibits shutter release while the light-shielding lid is open.

[Brief description of drawings]

FIG. 1 is a perspective view of a camera showing a loaded state of a film cartridge according to a first embodiment of the present invention.

FIG. 2 is a perspective view of essential parts showing a lock mechanism and an eject mechanism of a cartridge lid when a film cartridge is loaded.

FIG. 3 is a perspective view of a main part of a shutter lock mechanism.

FIG. 4 is a perspective view of a main part showing a release prohibition state of a shutter lock mechanism.

FIG. 5 is a sectional front view of a shutter button section.

FIG. 6 is a bottom view of the shutter button section.

FIG. 7 is an exploded perspective view showing the front structure of the camera.

FIG. 8 is a perspective view of an essential part showing an opening / closing mechanism of the light-shielding lid.

FIG. 9 is a perspective view of essential parts showing a lock mechanism and an eject mechanism of a cartridge lid according to a second embodiment of the present invention.

FIG. 10 is a perspective view of a main part of a shutter lock mechanism.

FIG. 11 is a perspective view of an essential part showing a release prohibition state of the shutter lock mechanism.

FIG. 12 is a sectional front view of a shutter button section.

[Explanation of symbols]

 1 film cartridge 4 film outlet 5 light-shielding lid 10 camera 11 camera body 12 cartridge chamber 13 cartridge lid 13a locking part 13b pressing piece 20 key member 20a key part 21 ejector 21c protrusion 22 spring 23 turning shaft 24 locking lever 25 Shutter button 25a Button portion 25b Elastic piece 25c Center protrusion 30 Shutter lock member 30a Boss portion 30b First engaging portion 30c Second engaging portion 30d Spring piece 31 Torsion spring 33 Rewind button 34 Interlocking lever 35 Barrier 37 Photographing lens 130 Shutter lock member 130a Boss part 130b Engagement part 130c Lock claw 131 Spring

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Kamoda 1-324 Uetakecho, Omiya City, Saitama Prefecture Fuji Photonics Co., Ltd.

Claims (5)

[Claims] 1. A camera using a film cartridge having a photographic film wound up on a spool up to the leading end thereof and having a light-shielding lid for opening and closing a film outlet through which the photographic film passes, wherein a shutter release is provided during film rewinding. A camera provided with shutter release prohibiting means for prohibiting shutter release even after the film rewinding is completed while the light shielding lid is open. 2. A camera provided with a cartridge lid for accommodating a photographic film wound on a spool up to the leading end and for opening and closing a cartridge chamber for accommodating a film cartridge having a light-shielding lid, wherein the photographic film is exposed in the film cartridge. Rewind button to be operated when rewinding the shutter, a shutter lock member that moves in conjunction with the rewind operation by the above rewind button to prohibit the shutter button release operation, and a holding that holds the shutter lock member release prohibition. A camera comprising: means for releasing the shutter lock member from holding the shutter release position of the shutter lock member by the holding means after the light shielding lid is closed in association with the opening operation of the cartridge lid. 3. A projection for forming the releasing means by an ejector for urging the film cartridge inserted in the cartridge chamber in the take-out direction, and forming the holding means on the ejector for engaging with a part of the shutter lock member. The camera according to claim 2, wherein the camera is configured by a unit. 4. A cartridge chamber for accommodating a photographic film wound on a spool up to the leading end thereof and storing a film cartridge having a light-shielding lid, a cartridge lid for opening and closing the cartridge chamber, and a closed position of the cartridge lid. In a camera equipped with a key member, a rewind button operated when rewinding the exposed photographic film into the film cartridge, and a shutter button release operation that moves in conjunction with the rewind operation by the rewind button. A shutter lock member for prohibiting release of the shutter lock member, holding means for holding a release prohibition position of the shutter lock member, and prohibition of release of the shutter lock member by the holding means after the light shielding lid is closed in association with an unlocking operation of the key member. It has a release means to release the holding of the position. Camera according to symptoms. 5. The shutter lock member is linked to a barrier that opens and closes the front of the taking lens, and moves to a release prohibition position when the barrier is closed and to a release position when the barrier is open. The camera described in.