JPH11352559A - Film cartridge type camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film cartridge type camera without playing a cover member, even if a photographer tries to open the cover member by an operation member in a state where a film is fed. SOLUTION: In a state where the film is wound, a locking plate 66 is placed in a second rocking position abutting on a second stopper by the rotation of a film winding/unwinding gear array. When an operation part 621 of an operation member 62 is rocked counterclockwise with a shaft 62A as a supporting point, a locking part 64B of a locking gear 64 is locked by the locking plate 66 placed in the second rocking position, so that the locking gear 64 is incapable of rotating beyond that. Therefore, the abutting part 623 of the operation member 62 is not rocked counterclockwise to more than the position of an alternate long and two short dashes line al. Since the abutting part 623 of the operation member 62 does not abut on a locking pawl 60 in a locking position, there is no play in the cover member 56.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film cartridge type camera.

[0002]

2. Description of the Related Art There has been provided a film cartridge type camera using a film cartridge in which a photographic film is wound into a housing up to its tip when not in use and a photographic film is fed by rotating a spool when in use. . Such a film cartridge type camera has a cartridge chamber for loading a film cartridge in the camera body, and a cover member for opening and closing the film cartridge insertion opening of the cartridge chamber, and the film cartridge insertion opening is closed. A lock mechanism for locking the lid member in the state. The lock mechanism includes a locking member that holds the lid member in a closed state and an operating member that is interlocked with the locking member, and releases the locking of the locking member to the lid member by operating the operating member in a predetermined direction. The configuration is as follows.

In such a film cartridge type camera, in order to prevent the film from being exposed by opening the lid member in a state where the film is fed out from the film cartridge loaded in the film cartridge chamber,
In a state where the film is unreeled, the operating member or the locking member interlocked therewith is often fixed by another fixing member so as to be immovable.

[0004]

In such a configuration in which the operating member or the engaging member interlocked with the operating member is immovably fixed by another fixing member, the operating member or the engaging member interlocked therewith is fixed. The operation member or the locking member is immovably fixed by positioning the fixing member on the movement locus, and the operation member or the locking member can be moved by retracting the fixed member from the movement locus. It is common. By the way, a slight play is provided between the fixed member at the position protruding on the movement locus and the operation member or the locking member. This is because it is difficult to move the fixing member from a position protruding on the movement trajectory to a position retracted from the movement trajectory when the fixing member and the operation member or the locking member are in contact with each other. .

However, when play is provided between the fixing member and the operating member or the locking member as described above, the operating member or the locking member is moved in a state where the fixing member protrudes on the movement locus. It becomes possible to move only for play. In other words, even if the locking member locks the lid member in the closed state, if the operation member is forcibly operated,
The operating member or the locking member interlocked with the operating member moves by the play, and as a result, the locking between the lid member and the locking member is not released, but a phenomenon in which the lid member rattles is not preferable. The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a film in which the cover member does not rattle even when the cover member is opened by the operation member in a state where the film is unreeled. It is to provide a cartridge type camera.

[0006]

In order to achieve the above-mentioned object, the present invention provides a film cartridge chamber formed in a camera body for loading a film cartridge, and a lid member for opening and closing a film cartridge insertion opening of the film cartridge chamber. And a lock mechanism for locking the lid member in a state where the film cartridge insertion port is closed. The lock mechanism locks the film member insertion port with the closed lid member to change the locked state of the lid member. In a film cartridge type camera having a lock claw to be held and an operation member operated to release a lock state of the lid member by the lock claw, a lock plate which is swung by a drive mechanism is provided, wherein the drive mechanism is a film A lock / rewind gear train and first and second stoppers; Is provided via a clutch to a member constituting the film winding rewinding gear train,
When the film winding and rewinding gear train rotates to rewind the film, the lock plate comes into contact with the first stopper to be in a first swing position, and when the film is rotated to wind the film, the lock plate is locked. The plate is configured to come into contact with a second stopper to be in a second swing position, and when the lock plate is located in the first swing position, the locked state of the lid member is released. The operation member can be operated in a direction, and when the lock plate is located at the second swing position, the operation member is moved in a direction to release the locked state of the lid member by the lock plate. Operation is prevented. The present invention also provides a film cartridge chamber formed in a camera body, in which a film cartridge is loaded, a lid member for opening and closing a film cartridge insertion port of the film cartridge chamber, and the lid in a state where the film cartridge insertion port is closed. In a film cartridge type camera including a lock mechanism for locking a member, the lock mechanism includes a lock claw, an operation member, a lock gear, a lock plate, and a drive mechanism for the lock plate, and the lock claw includes: Rockably supported between a locking position for locking the lid member to hold the lid member in a closed state and an unlocking position for separating the lid member and allowing the lid member to be opened; and , The operating member is urged to be located at the locking position, and the operating member is operated when releasing the locked state of the lid member, and a gear portion. A contact portion capable of abutting on the lock claw, wherein the operating member is provided at a first position where the contact portion is separated from the lock claw located at the locking position; The lock gear is disposed so as to be swingable between a second position where the contact portion abuts on the lock claw, and the lock gear meshes with the gear portion and rotates in conjunction with the operation member. And, having a locking portion that can be locked to the lock plate, the lock plate,
The drive mechanism is provided so as to swing, and the drive mechanism includes a film winding / rewinding gear train and first and second stoppers, and the lock plate forms the film winding / rewinding gear train. The lock plate is brought into contact with the first stopper when the film winding / rewinding gear train rotates so as to rewind the film, so that the first swinging position is provided. When the film is rotated to wind up the film, the lock plate contacts the second stopper and the second plate stops.
In the state where the lock plate is located at the first swing position, the locking portion is not locked to the lock plate, and the operation member is swing-operated. When,
The abutting portion swings from the first position to the second position so as to abut the lock claw to move the lock claw from the locked position to the unlocked position. When the operating member is rocked in a state where the lock plate is located at the second rocking position, the locking portion of the contact portion is locked to the lock plate. Thereby, it is configured to be stopped at a position where it does not come into contact with the lock claw. Also, the present invention
The film winding / rewinding gear train has a lock switching gear at an end of the gear train, and a member constituting the film winding / rewinding gear train provided with the lock plate is the lock switching gear, and the lock switching gear is The lock plate is fixed to a connecting shaft that rotatably supports the lock plate. Further, the invention is characterized in that the clutch is constituted by a friction spring disposed between the lock switching gear and the connection shaft around the connection shaft. Further, the present invention includes a door driver driving mechanism for opening and closing the light shielding door of the film cartridge, wherein the lock claw relates to a locking portion for locking to the lid member, and a member constituting the door driver driving mechanism. And a door driver driving mechanism is driven by swinging of the lock claw to open and close the light blocking door. Also,
According to the present invention, the door driver driving mechanism opens the light shielding door in conjunction with the engaging portion when the lock claw swings from the unlocked position to the locked position, and the lock claw is locked. When swinging from the position to the unlocking position, the light shielding door is closed in conjunction with the engagement portion. Further, the present invention is characterized in that the operating member and the lock claw are arranged so as to swing in planes parallel to each other. Further, the present invention is characterized in that the mutually parallel surfaces are parallel to front and rear surfaces of the camera body.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of a film cartridge type camera according to the present invention, FIG. 2 is an explanatory diagram showing a configuration of a lock mechanism as viewed from the back of the camera body, and FIG. FIG. 4 is an explanatory view showing the configuration of the lock mechanism as viewed from above, FIG. 4 is an explanatory view showing the configuration of the lock mechanism as viewed from a cross section taken along line BB of FIG. FIG. 3 is an explanatory diagram showing the configuration of FIG.

Referring to FIG. 1, a schematic configuration of a film cartridge type camera will be described. A lens barrel 12 is provided at the center of the camera body 10, a film cartridge chamber 14 is provided on one side, and a film take-up chamber 16 is provided on the other side.
4 is loaded with a film cartridge 18. The film take-up chamber 16 is provided with a film take-up spool 20 extending in the vertical direction. The film take-up spool 20 is adapted to take up the film 18A unwound from the film cartridge 18. ing.

A film take-up spool 20 is rotated by a film take-up / rewind gear train 22, a film take-up / rewind gear train 22, a portion 22 A disposed at the bottom of the camera body 10, and a film cartridge chamber 14.
The film take-up spool 20 has a portion 22B disposed above the camera main body 10 and a portion 2B of the film wind-up / rewind gear train 22 disposed at the bottom of the camera body 10.
The gear 24 is fixed to the 2A gear 24 and is rotated integrally with the gear 24. The gear 24 is connected to a drive shaft of a film winding / unwinding motor (not shown) built in the film winding spool 20.

The film winding and rewinding gear train 22
Parts 22A are gears 24, 26, 28, 30, 32, 3
4 and 36, and a portion 22B of the film winding / rewinding gear train 22 includes gears 38, 40, 42,
The gear 36 and the gear 38 are connected by a connecting shaft 46. In the present invention, a first lock switching gear 48 meshing with the gear 44 of the film winding / rewinding gear train 22 and the first lock switching gear 48
And a second lock switching gear 50 that meshes with. That is, the film winding / rewinding gear train 22 has the first and second lock switching gears 48 and 50 at the ends of the gear train.

An outer periphery of the camera body 10 is covered by a case 11, and a film cartridge chamber 14 has a film cartridge insertion opening 5 opened on the lower surface of the camera body 10.
2, and the film cartridge insertion slot 52 is configured to be opened and closed by a lid member 56 pivotally connected to the camera body 10 with a shaft 54. The lid member 56 locks the film cartridge insertion slot 52 in a closed state by a lock mechanism 58 described later.

One end of a spool drive shaft (not shown) is rotatably supported on the opposite side of the film cartridge insertion slot 52. An engagement portion provided at an inwardly projecting end of the spool drive shaft has a film cartridge 18 attached thereto. Film spool 18
One end of B is engaged and disengaged, the spool drive shaft and the gear 44 are connected, and the spool drive shaft is rotated by the film winding / rewinding gear train 22.

Next, the structure of the lock mechanism 58 will be described with reference to FIGS. 2 shows the configuration of the lock mechanism as viewed from the back of the camera body 10, FIG. 3 shows the configuration of the lock mechanism as viewed from the arrow A in FIG. 2, and FIG. 4 shows the cross section taken along line BB in FIG. FIG. 5 shows the configuration of the locking mechanism shown in FIG.
3 shows a configuration of the lock mechanism as viewed from a cross section taken along line C.

As shown in FIG. 2, the lock mechanism 58 includes a lock claw 60, an operation member 62, a lock gear 64, a lock plate 66, and the like.

The lock claw 60 extends vertically on the back surface of the film cartridge chamber 14, and has an intermediate portion 60.
A is an axis 60B having an axis in the front-rear direction of the camera body 10.
The arm 71 of a door driver drive mechanism (see FIG. 4) having a locking portion 60C at one end for locking with the locking concave portion 56A of the lid member 56 and opening and closing the light shielding door of the film cartridge 18 at one end. ) Is engaged. That is, the lock claw 60 is swingably supported by the shaft 60B in a plane parallel to the front and rear surfaces of the camera body 10. As shown in FIG. 2, the lock claw 60
A locking position for locking the lid member 56 to hold the lid member 56 in a closed state (a two-dot chain line), and an unlocking position for separating the lid member 56 and opening the lid member 56 (solid line). Are pivotally supported about a shaft 60B, and are urged by an urging member 60E so as to abut against the stopper 60F to be located at the locking position.

The locking claw 60 swings between the locking position and the unlocking position, and the engaging portion 60D swings the arm 71 of the door driver driving mechanism to drive the door driver driving mechanism. When the lock pawl 60 pivots from the unlocked position to the locked position, the arm 71 is pivoted by the engaging portion 60D to open the light blocking door. When the arm swings from the locking position to the unlocking position, the arm 71 is swung by the engagement portion 60D so as to close the light blocking door.

As shown in FIG. 2, the operating member 62 is operated when the locked state of the lid member 56 is released.
21, a gear portion 622, and a contact portion 623 that can contact the lock claw 60. The operation portion 621, the gear portion 622, and the contact portion 623 are integrally formed. The operation portion 621 extends horizontally outside the cover 11, and is rotatably supported at one end of the operation portion 621 by a bearing portion 62 </ b> B (see FIG. 5) provided on the cover 11 in the front-rear direction. A shaft 62A having an axis is provided. The gear portion 622 and the contact portion 623 are fixed to the shaft 62 </ b> A inside the cover 11. That is, the operation member 62 is swingably supported in a plane parallel to the front and rear surfaces of the camera body 10.

The operating member 62 includes a first position (solid line) in which the contact portion 623 is separated from the lock claw 60 located in the locking position, and a lock claw in which the contact portion 623 is located in the lock release position. 60 second position (two-dot chain line a2)
It is arranged to be able to swing between and. The operation member 6
2 is urged by an urging member 62E so as to be in contact with the stopper 62C to be located at the first position.

The lock gear 64 is rotatably supported by a shaft 64A having an axial center in the front-rear direction, meshes with the gear 623 and rotates in conjunction with the operation member 62, and can be locked to a lock plate 66. Is provided in the radial direction.

The lock plate 66 is fixed to a lower end 68A of a connecting shaft 68 extending in the vertical direction.
A support shaft 68 </ b> B rotatably supporting the second lock switching gear 50 interlocked with the film winding / rewinding gear train 22 is provided at the upper end of 8. The second lock switching gear 50 is connected to the connection shaft 68 via a friction spring (corresponding to a clutch in the claims) 70 provided around the support shaft 68B by a flange portion 68C fixed to the upper end of the connection shaft 68. It is connected to.

When the film take-up / rewind gear train 22 is driven in the direction to rewind the film, that is, as shown in FIGS. 4 and 5, the second lock switching gear 5 is used.
When 0 rotates counterclockwise, the lock plate 66 rotates counterclockwise and abuts against the first stopper 66A, as shown in FIG.
At the first swing position as shown by the two-dot chain line,
After the lock plate 66 is in the first swing position, the lock plate 66 slides even if the second lock switching gear 50 rotates counterclockwise due to the action of the friction spring 70.
It is configured to be held in the swing position. Also,
As shown in FIG. 5, when the lock plate 66 is located at the first swing position, the locking portion 64B is not locked by the lock plate 66.

A film winding and rewinding gear train 2
When the second lock switching gear 50 rotates clockwise as shown in FIGS. 4 and 5, the lock plate 6 is driven.
6 rotates counterclockwise and comes into contact with the second stopper 66B, and is in the second swing position as shown by the solid line in FIG. 5, and after the lock plate 66 is in the second swing position, friction occurs. Even when the second lock switching gear 50 rotates clockwise by the action of the spring 70, the lock plate 66 is configured to slide and be held at the second swing position. FIG.
When the lock plate 66 is located at the second swing position as shown in FIG.
It is to be locked by. The drive mechanism of the lock plate 66 is constituted by the film winding / rewinding gear train 22 having the first and second lock switching gears 48 and 50 and the first and second stoppers 66A and 66B.

Next, the operation and effect of the film cartridge type camera configured as described above will be described. First, a case where a new film cartridge 18 is loaded in the film cartridge chamber 14 will be described. In the previous photographing, the film 18A has been rewound into the film cartridge 18 and taken out of the film cartridge chamber 22, and in this case, the lock mechanism 58 is in the state described below. In other words, the lock plate 66 is located at the first swinging position abutted on the first stopper 66A by the rotation of the second lock switching gear 50 of the film winding / rewinding gear train 22 driven in the film rewinding direction. doing.

Therefore, in FIG. 2, when the photographer swings the operation portion 621 of the operation member 62 counterclockwise around the shaft 62A against the urging force of the urging member 62E, the contact portion 623 is formed. Is rocked from a first position (solid line) separated from the lock claw 60 located at the locking position indicated by the two-dot chain line, and abuts on the lock claw 60, and the lock claw 60 is indicated by the two-dot chain line. The contact portion 623 is swung from the stop position to the lock release position indicated by the solid line, and
Rocked until 2). At this time, the gear portion 6 of the operation member 62
The lock gear 64 meshing with the operation member 6
2 in a clockwise direction in conjunction with the locking portion 64B.
Does not lock with the lock plate 66 located at the first swing position, the lock gear 64 is rotated to the position indicated by the two-dot chain line b2 shown in FIG.

Thus, the locking portion 60C of the lock claw 60
Is retracted from the locking recess 56A of the lid member 56,
Is released, the lid member 56 can be opened and closed,
The film cartridge 18 can be loaded from the film cartridge insertion port 52.

Here, a new film cartridge 18
Is loaded into the film cartridge chamber 14 from the film cartridge insertion port 52, the film spool 18 of the film cartridge 18 is inserted into the engagement portion of the spool drive shaft.
One end of B is engaged. When the lid member 52 is closed and the operation member 62 is swung according to the urging force of the urging member 62E and returns to the original position, the lock claw 60 is also unlocked indicated by the solid line according to the urging force of the urging member 60E. From the position to the locking position shown by the two-dot chain line,
The locking portion 60C of the lock claw 60 is locked to
Are kept closed. At this time, as shown in FIG. 2, the lock claw 60 is swung from the lock release position shown by the solid line to the lock position shown by the two-dot chain line, as shown in FIG. The arm 71 engaged with the engaging portion 60D swings from the position indicated by the two-dot chain line to the position indicated by the solid line. The door driver driving mechanism is driven by the swing of the arm 71 to open the light shielding door of the film cartridge 18 and to allow the film 18A to be fed out of the film cartridge 18.

When the lid member 56 is closed, the motor is driven to drive the film winding / rewinding gear train 22.
, The spool drive shaft is rotated in the film rewind direction, the bar code of the disk of the film cartridge 18 is read by the optical reader, and the read film information is used for controlling the camera by known control means. .

Next, the spool drive shaft is rotated in the film feeding direction via the film winding / rewinding gear train 22, and the film 18A is sent out from the delivery port of the film cartridge 18 to the film take-up chamber 16, and the leading end of the film. Is a film take-up spool 2
By 0, the film is wound up by a predetermined amount, and the initial unwinding of the film is completed. Thereafter, the film is exposed by operating the release button, and upon completion of this exposure operation, the film take-up spool 20 on the camera side is rotated in the film take-up direction, and one frame of the film 18 is rotated.
A is wound around the film take-up spool 20.

When the film 18A is being wound, the lock mechanism 58 is in the state described below. That is, the lock plate 66 is used for the film winding / rewinding gear train 2 driven in the film winding direction.
2 by the rotation of the second lock switching gear 50.
Is located at the second swing position in contact with the stopper 66B.

Here, the photographer operates the operating section 6 of the operating member 62.
When the member 21 is pivoted counterclockwise around the shaft 62A against the urging force of the urging member 60E, the contact portion 623
The operating member 62 is swung from a first position (solid line) separated from the lock claw 60 located at the locking position indicated by the two-dot chain line.
The lock gear 64 meshing with the gear portion 622 also rotates clockwise in conjunction with the operation member 62. here,
The lock gear 64 locks the locking portion 64B to the lock plate 66 located at the second swing position, so that further rotation is not possible. Stop at the position. Here, since the gear portion 622 of the operating member 62 meshes with the lock gear 64 locked by the lock plate 66, the contact portion 623 of the operating member 62 is shifted from the position indicated by the solid line in FIG. Although it swings to the position of a1, it becomes impossible to swing counterclockwise beyond the position of the two-dot chain line a1. That is, the contact portion 623 of the operation member 62
Is stopped at a position separated from the lock claw 60 at the locking position, and does not come into contact with the lock claw 60.

Therefore, in a state where the film 18B is extended, such as during photographing, even if the cover member 56 is to be opened by the operation member 62, the lock claw 60 cannot be moved, and the cover member 56 is not opened. . Further, even if the operation member 62 is rocked, the contact portion 623 of the operation member 62 does not abut on the lock claw 60 and does not give the lock claw 60 a force to move in the direction of the unlocking position. Therefore, the cover member 56 does not rattle.

Next, a case where photographing is completed will be described. When the shooting of the number of frames according to the film length is completed,
The film spool 18B of the film cartridge 18 is rotated in the rewind direction by the spool drive shaft,
Rewind film 18A. When the film 18B is completely rewound into the film cartridge 18 up to its leading end, the rewound of the film is terminated. When the film 18B is unwound, the lock mechanism 58 is in a state described below. That is, the lock plate 6
6 is a second lock switching gear 5 of the film winding / rewinding gear train 22 driven in the film rewinding direction.
The first stopper abuts on the first stopper 66A by the rotation of
Is located at the swing position.

Here, the photographer operates the operating section 6 of the operating member 62.
When the member 21 is pivoted counterclockwise around the shaft 62A against the urging force of the urging member 60E, the contact portion 623
The lock pawl 6 is swung from a first position (solid line) separated from the lock pawl 60 located at the locking position indicated by the two-dot chain line.
0 and swings the lock claw 60 from the locked position shown by the two-dot chain line to the unlocked position shown by the solid line, and
23 is swung to a second position indicated by a two-dot chain line a2. At this time, the lock gear 64 meshing with the gear portion 622 of the operation member 62 rotates clockwise in conjunction with the operation member 62, but the locking portion 64B is positioned at the first swing position. FIG.
Is rotated to the position of the two-dot chain line b2 shown in FIG.

Therefore, the locking portion 60C of the locking claw 60
Is retracted from the locking recess 56A of the lid member 52,
Is closed, the lid member 52 can be opened and closed,
The film cartridge 14 can be taken out from the film cartridge slot 18.

At this time, as shown in FIG.
As shown in FIG. 4, the arm 71 engaged with the locking portion 60 </ b> C of the lock claw 60 is solid Is swung from the position indicated by the dotted line to the position indicated by the two-dot chain line. The door driver driving mechanism is driven by the swing of the arm 71 to close the light shielding door of the film cartridge 18 so that the film cartridge 14 can be taken out.

[0036]

As is clear from the above description, the present invention
A film cartridge chamber formed in the camera body, into which a film cartridge is loaded, a lid member for opening and closing the film cartridge insertion port of the film cartridge chamber, and a lock mechanism for locking the lid member in a state where the film cartridge insertion port is closed. A lock claw that locks the film cartridge insertion opening with a cover member that closes the cover member to hold the locked state of the cover member, and a lock claw that releases the locked state of the cover member by the lock claw. A film cartridge-type camera having an operation member to be operated, a lock plate that is swung by a drive mechanism is provided, and the drive mechanism is configured by a film winding / rewinding gear train and first and second stoppers; A lock plate is provided on a member constituting the film winding and rewinding gear train. The lock plate comes into contact with the first stopper to be in a first swing position when the film winding / rewinding gear train rotates to rewind the film, so that the film is wound up. When the lock plate is rotated, the lock plate comes into contact with a second stopper to be in a second swing position, and when the lock plate is located in the first swing position, the lid member The operating member can be operated in a direction to release the locked state of the cover member, and a direction in which the locked state of the lid member is released by the lock plate when the lock plate is located at the second swing position. The operation of the operating member is prevented. Therefore, in a state where the film is fed out, such as during photographing, even if an attempt is made to open the lid member by the operation member, the operation of the operation member in the direction of releasing the locked state of the lid member is prevented, The lid does not rattle.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a film cartridge type camera of the present invention.

FIG. 2 is an explanatory diagram showing a configuration of a lock mechanism as viewed from the back of the camera body.

FIG. 3 is an explanatory view showing the configuration of the lock mechanism when FIG. 2 is viewed from the direction of arrow A.

FIG. 4 is an explanatory diagram showing a configuration of a lock mechanism when FIG. 2 is viewed from a cross section taken along line BB.

FIG. 5 is an explanatory diagram showing the configuration of the lock mechanism when FIG. 2 is viewed from a cross section taken along line CC.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Camera main body 18 Film cartridge 14 Film cartridge chamber 22 Hoisting and rewinding gear train 56 Cover member 58 Lock mechanism 60 Lock claw 62 Operation member 64 Lock gear 66 Lock plate 66A First stopper 66B Second stopper

Claims (8)

[Claims] 1. A film cartridge chamber formed in a camera body and loaded with a film cartridge, a lid member for opening and closing a film cartridge insertion port of the film cartridge chamber, and the lid member in a state where the film cartridge insertion port is closed. A lock claw that locks the film cartridge insertion opening with a lid member that closes the lid member to maintain a locked state of the lid member, and a lock state of the lid member that is locked by the lock claw. A film cartridge type camera having an operation member operated to release the film, provided with a lock plate that swings by a driving mechanism, wherein the driving mechanism includes a film winding / rewinding gear train and first and second stoppers. The lock plate constitutes the film winding and rewinding gear train. The lock plate comes into contact with the first stopper when the film winding-up / rewinding gear train rotates to rewind the film, and the film comes to a first swing position. When the lock plate is in the second swing position when the lock plate is in contact with the second stopper when the lock plate is rotated to wind up, the lock plate is in the first swing position. ,
The operation member can be operated in a direction to release the lock state of the lid member, and when the lock plate is located at the second swing position,
A film cartridge type camera, wherein an operation of the operation member in a direction for releasing a locked state of the lid member is prevented by a lock plate. 2. A film cartridge chamber formed in a camera main body, in which a film cartridge is loaded, a lid member for opening and closing a film cartridge insertion port of the film cartridge chamber, and the lid member in a state where the film cartridge insertion port is closed. Wherein the lock mechanism comprises: a lock claw, an operation member, a lock gear, a lock plate, and a drive mechanism for the lock plate. It is swingably supported between a locking position where it is locked to the lid member and holds the lid member in a closed state, and an unlocked position where the lid member is opened away from the lid member, and The operating member is urged to be located at the locking position, and the operating member is operated when releasing the locked state of the lid member, and a gear unit. A contact portion capable of contacting the lock claw, wherein the operation member has a first position in which the contact portion is separated from the lock claw located in the locking position; and the lock release position. The lock gear is disposed so as to be swingable between a second position where the contact portion abuts on the lock claw, and the lock gear meshes with the gear portion and rotates in conjunction with the operation member. And a locking portion that can be locked to the lock plate. The lock plate is provided so as to swing by the drive mechanism, and the drive mechanism includes a film winding / rewinding gear train, a first and a second gears. The lock plate is provided on a member constituting the film winding / rewinding gear train via a clutch, and when the film winding / rewinding gear train rotates so as to rewind the film. The lock plate is The lock plate is brought into contact with the first stopper to be in the first swing position, and when the film is rotated to wind up the film, the lock plate is in contact with the second stopper to be in the second swing position. In the state where the lock plate is located at the first swing position,
The locking portion does not lock to the lock plate, and when the operating member is rocked, the abutting portion is rocked from the first position to the second position to lock the locking member. The lock member is configured to contact the claw to move the lock claw from the lock position to the lock release position, and the operating member swings while the lock plate is located at the second swing position. When operated, the abutting portion is configured to be stopped at a position where the abutting portion is not abutted against the lock claw by being locked by the locking plate. Film cartridge type camera. 3. The film winding / rewinding gear train has a lock switching gear at an end of the gear train, and a member constituting the film winding / rewinding gear train provided with the lock plate is the lock switching gear. 3. A film cartridge type camera according to claim 1, wherein said lock plate is fixed to a connecting shaft rotatably supporting said lock switching gear. 4. The film cartridge type according to claim 3, wherein said clutch is constituted by a friction spring disposed between said lock switching gear and said connection shaft around said connection shaft. camera. 5. A door driver driving mechanism for opening and closing a light shielding door of the film cartridge, wherein the lock claw is engaged with a locking portion which locks on the lid member and a member constituting the door driver driving mechanism. 5. The light-shielding door according to claim 1, further comprising an engaging portion that engages, and wherein a door driver driving mechanism is driven by swinging of the lock claw to open and close the light shielding door. 6. Film cartridge type camera. 6. The door driver driving mechanism opens the light blocking door in conjunction with the engaging portion when the lock claw swings from the unlocked position to the locked position, and the lock claw is engaged. 6. The film cartridge type camera according to claim 5, wherein the light shielding door is closed in conjunction with the engaging portion when swinging from the stop position to the unlocking position. 7. The film cartridge type camera according to claim 1, wherein the operation member and the lock claw are arranged to swing in planes parallel to each other. 8. The film cartridge type camera according to claim 7, wherein the surfaces parallel to each other are parallel to front and rear surfaces of the camera body.