JPH0556498B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a film supply magazine for feeding film after photographing to a developing device.

[Background technology]

The photographed film is stored in a cartridge, and it is necessary to pull it out from the cartridge and send it to the developing device.

For this reason, conventionally, one end of the film protrudes from the tip of the cartridge, a leader is attached to this tip, the leader is fed into the developing device, the leader pulls the film into the developing device, and the film is developed while being guided. A developing device is used.

In addition, by storing a large number of films in a cartridge with this leader attached in a magazine, having the leaders protrude from the magazine at regular intervals, and connecting this magazine to a developing device, the leader guides the films one by one to the developing device. An automatic feeding device has also been proposed (Japanese Patent Application No. 61-90382). According to this, a large number of films can be stored in a magazine,
Automatic film feeding is possible simply by setting the film in the developing device.

For this reason, the leader sent out from the magazine engages with a driving protrusion within the developing device and is drawn into the developing device.

However, when each film is connected to a plurality of leaders, stored in a magazine, and sent to a developing device one after another, when the leader at the tip receives a tensile force from the developing device, this frictional force causes the next leader to be pulled. Sometimes I receive power. For this reason, if the next leader is pulled out together with the first leader, developing defects will occur, so it is necessary to reliably prevent this.

In consideration of the above facts, the present invention provides a film supply magazine that can accommodate a large number of film leaders and reliably supply each leader one by one even when these leaders are sequentially supplied to a developing device. The purpose is to obtain.

[Summary and operation of the invention]

The present invention is a method for storing a film having a thin leader attached to its tip in a magazine main body, feeding the leader from the magazine main body to a developing device, and supplying the film to the developing device while being guided by the leader. The film supply magazine includes an endless belt on which a protrusion for engaging a leader is formed, a gear around which the endless belt is wound, a driving means for driving the gear, and an endless belt when the gear is rotated by the driving means. It is characterized by having a stopper that allows the belt to rotate and prevents the endless belt from rotating when the drive is stopped, thereby eliminating movement of the endless belt.

Therefore, in the present invention, the plurality of leaders stored in the magazine are each engaged with an endless belt, and the endless belt, which rotates under driving force, sequentially sends the leaders to the developing device. in this case,
Since the rotation of the gear around which the endless belt is wound is blocked, only the first leader comes off the endless belt and is pulled toward the developing device, while the next leader remains engaged with the endless belt. Movement is blocked, thereby ensuring that only the first leader is sent to the developing device.

When the drive means includes a pinion that transmits rotational force to the gear and a rack that drives the pinion, the gear can be easily moved by providing a pin that protrudes from the rack and moves in and out of the rotation locus of the gear as the rack moves. And it is possible to stop and release the rotation of the endless belt.

[Embodiments of the invention]

FIG. 3 shows a state in which the reader 10 used in this embodiment is attached to the tip of the film 14 protruding from the cartridge 12. The base end of the film 14 is locked to a core 12A in the cartridge 12. The leader 10 is made of a thin sheet material such as synthetic resin, and has a plurality of openings 16 formed along its longitudinal direction.

An adhesive tape 20 is used to connect the film 14 and the leader 10. Further, on the other end of the reader 10, a narrow identification line 22 as an identification mark is applied over the entire width direction.

FIG. 4 shows a magazine 24 in which the reader 10 and film 14 are accommodated. The magazine 24 is box-shaped, and when a lid 26, which can be opened and closed via a hinge 24A at the upper end of the magazine main body 25, is closed, the interior is shielded from light except for the film supply port 24B.

Inside the magazine body 25, a pair of vertical walls 28 and 30 are formed at the center in the width direction along the longitudinal direction. The top surfaces of these vertical walls 28 and 30 are reader mounting surfaces, and the space between them and the magazine main body side walls 25A and 25B is a storage space for the cartridge 12, respectively.

The vertical walls 28 and 30 have a recess 32 whose height is temporarily reduced near the film supply port 24B of the magazine body 25, and constitute a support surface for the leader 10. That is, since the leader 10 is made of a flexible thin material such as synthetic resin and maintains a flat state in a free state, a recess 32 is formed even when it is placed on the vertical walls 28 and 30. However, it remains flat. However, when compressive force is applied in the longitudinal direction, it elastically bends and becomes bent along the recess 32, and the vicinity of the tip can be directed diagonally upward compared to the free state.

As shown in FIG. 6, a gear (sprocket wheel) 34 is pivotally supported between the vertical walls 28 and 30.
Endless conveyor belt 36 as leader sending means
A part of the inner periphery is engaged with the engagement protrusion 36A. Further, another part of the inner periphery of the endless conveyor belt 36 is wound around and engaged with a gear 38 disposed between the vertical walls 28, 30 and the magazine rear wall 25C. The gear 38 is fixed to a rotating shaft 40, and both ends of the rotating shaft 40 are supported by the magazine body 25 via brackets 42 and 44.

Therefore, the endless conveyor belt 36 has gears 34, 38
Engagement protrusions 36B, which are parallel to each other and protrude from the outer periphery at regular intervals, protrude from the top surfaces of the side walls 25A and 25B and engage with the openings 16 of the leader 10 placed on the vertical walls 28 and 30. It's becoming like that.

An opening 1 in which a plurality of engagement protrusions 36B protruding toward the outer periphery of the endless conveyor belt 36 are formed in the leader 10.
By being inserted into 6, it is used to drive the reader 10.

L-shaped engagement protrusions 46 protrude upward from the vertical walls 28, 30, into which the film attachment end of the leader 10 can be inserted. The leader 10 is attached and positioned at intervals between these engaging protrusions 46.

Therefore, when the ends of a plurality of leaders 10 are respectively accommodated in the engagement protrusions 46 and the openings 16 are engaged with the engagement protrusions 36B, the leaders 10 are placed on the vertical walls 28, 30 at regular intervals, and the tips are placed on the vertical walls 28, 30. part identification line 22
are exposed at regular intervals, allowing the worker to accurately detect the state in which the reader 10 is attached.

The lid 26 has a pair of ribs 26 at the center in the width direction.
A and 26B are formed parallel to each other along the longitudinal direction. These ribs 26A, 26B
6 are disposed facing the upper ends of the vertical walls 28 and 30, respectively, in a closed state to the magazine main body 25, and the vicinity of the tip of the engagement protrusion 36B is accommodated therein. Therefore, when the lid 26 is closed to the magazine body 25, care is taken to prevent the leader 10 from accidentally coming off the engagement protrusion 36B.

Standing walls 28, 3 are connected to these ribs 26A, 26B.
It is also possible to provide a protrusion that enters the recess 32 of 0 so that the leader 10 can be bent with the lid 26 closed.

The gear 34 disposed inside the vertical walls 28, 30 is the seventh
The pin 54 is inserted through the sleeve 52 as shown in the figure.
This pin 54 is pivoted to the vertical walls 28, 3.
It is pivoted to 0. A pinion 58 is pivotally supported on the outer periphery of the sleeve 52 via a one-way clutch 56. One-way clutch 56 is configured to transmit only clockwise rotation of pinion 58 in FIGS. 6 and 7 as clockwise rotation of sleeve 52 and gear 34. This pinion 58 has a standing wall 28,
Rack 62 which is guided so as to be linearly movable between 30 meshes with each other. This rack 62 is connected at one end to a rod 64, and the rod 64 is guided so as to be linearly movable by passing through a guide block 66 attached to the magazine body 25. The tip of the rod 64 is exposed from the film supply port 24B of the magazine body 25, and when pushed into the magazine body 25, the rack 62 rotates the pinion 58 clockwise in FIGS. The endless conveyor belt 36 is moved by the required feed length of the leader 10 through the feeder. As a result, the leading end of the leader 10 is sent to the developing device 68.

Since the rod 64 is biased by the biasing force of the compression coil spring 70 in the direction of protruding toward the film supply port 24B of the magazine body 25, when the pressing force on the rod 64 is released, the rack 62 returns to its original position. Because of the one-way clutch 56, the gear 34 will not rotate counterclockwise in FIGS. 6 and 7.

On the other hand, the rotating shaft 40 of the gear 38 around which the other part of the endless conveyor belt 36 is wound and supported is rotated by a constant angle by a moderation means. That is, a block 72 is fixed to the rotating shaft 40 between the gear 38 and the bracket 44.
There are three recesses 72 on the outer periphery of this block 72.
A is formed into which a roller 74 is inserted. This roller 74 is attached to the tip of an arm 78 which is pivotally supported on the magazine body 25 via a bracket 76, and a tension coil spring 80 is interposed between the arm 78 and the vertical wall 30. For this reason, when the endless conveyor belt 36 is rotated by the necessary feed length of the leader 10, the roller 74 enters into the recess 72A and stops the endless conveyor belt 36.

In order to ensure this stopped state, a stopper pin 82 corresponds to the gear 34, as shown in FIG. That is, this stopper pin 82 protrudes from the rack 62 and enters between the tips of the gear 34. However, this stopper pin 82 is easy to use.
When the gear 34 moves to the left in FIG. 6 and the gear 34 receives rotational force through the pinion 58 and the one-way clutch 56, it moves together with the rack 62 and projects out of the rotational trajectory of the gear 34, allowing the gear 34 to rotate. shall be.

Therefore, when the gear 34 is rotated by the required angle and the rack 62 returns, it is inserted again into the rotation locus of the gear 34, that is, between the tips of the teeth, and the rotation of the gear 34 is stopped. As a result, multiple reader 1
0 are in close contact with each other, and when the leader 10 at the tip receives a tensile force and is sent to the developing device, the next leader 1
Even if the endless conveyor belt 36 receives this tensile force due to frictional force or the like and generates a force that causes the endless conveyor belt 36 to rotate unexpectedly, the endless conveyor belt 36 will not move because its rotation is reliably prevented. .

Note that the magazine body 25 and the lid 26 have a small diameter portion 25 in the vicinity of the tip thereof via the step portions 25D and 26A.
E, 26B serves as an insertion portion into the developing device 68. The magazine body 25 also has a side wall 25.
A, 25B semicircular protrusion 25 from the inner wall
F and 25G protrude in pairs, and the space between these and the vertical walls 28 and 30 serves as a guiding space for the cartridge 12.

The space between the pair of protrusions 25F is a mounting portion for a magnet 84 for keeping the lid 26 closed to the magazine body 25. Further, an adsorption member 86 is attached to the lid 26 in correspondence with the magnet 84.

The magazine body 25 has a side wall 25 near its tip.
Guide protrusions 88 and 90 are provided at the upper end of the inner circumference of A and 25B.
are formed, and the protruding ribs 26C of the lid 26 are accommodated within these guide protrusions 88 and 90, so that the interior of the magazine body 25 is shielded from light.

As shown in FIG.
A supply unit lid 106 is disposed to 02 via a pin 104. This supply section lid 106 is connected to the magazine 24
It is configured to cover a supply section 110 for feeding the film 14 fed from the developing device 68 to the developing section 108 of the developing device 68.

A cylindrical portion 112 serving as a magazine connecting portion protrudes obliquely upward from the supply portion lid 106, and is adapted to accommodate the small diameter portions 25E and 26B of the magazine body 25. Therefore, the small diameter portions 25E, 26B
The lid 26 will not open when it is inserted into the cylindrical portion 112.

The supply section 110 is provided with a locking means 114 to prevent the magazine 24 from being pulled out or the supply section lid 106 from being opened inadvertently when a developing operation is started with the magazine 24 inserted. ing.

In other words, the arm 1 is attached to the cylindrical portion 112 with a pin 116.
The middle part of 18 is pivotally supported. This arm 11
8, a tip hook portion 118A corresponds to an opening 25H formed near the tip of the magazine body 25 to constitute magazine extraction prevention means, and is biased by its own weight in a direction away from the opening 25H.

However, the end of this arm 118 opposite to the hook portion 118A corresponds to the arm 120, and the hook portion 118A engages with the opening 25H upon receiving the driving force from the arm 120. This arm 120 is fixed to one end of the arm 122, and the middle part of the arm 122 is connected to the main body by a pin 124.
It is pivoted to 02. A hook portion 122A is formed near the end of the arm 122 to which the arm 120 is attached, and the hook 10 is projected inside the supply unit lid 106 by the biasing force of the compression coil spring 125.
6A constitutes a lid opening prevention means.

Further, the end of the arm 122 opposite to the hook portion 122A is pivotally supported by a plunger 128 of a solenoid 126. The solenoid 126 receives driving force from a control circuit 130 of the developing device 68. When development is started, this control circuit 130 energizes the solenoid 126, rotates the arm 122 against the biasing force of the compression coil spring 125, engages the hook portion 122A with the hook 106A, and rotates the arm 122 through the arm 120. The arm 118 is rotated to engage the hook portion 118A with the opening 25H. Therefore, during the developing operation, the supply section lid 106 will not be opened inadvertently, and the magazine 24 will not be inadvertently pulled out from the cylindrical section 112.

Adjacent to these locking means 114 are drive means 1 for actuating the rods 64 of the magazine 24.
42 are provided. As shown in FIG. 9, this driving means 142 includes a driving rod 144 which is guided by a cylinder 143 and is slidable in the axial direction, and whose tip end corresponds to the tip end of the rod 64. A roller 146 corresponds to the other end of the rod 144.

This roller 146 is pivotally supported by the distal end of a crank arm 148, and the proximal end of the crank arm 148 is fixed, and the proximal end of the crank arm 152 is fixed to a rotating shaft 150 that is pivotally supported to the main body 102. has been done. This crank arm 152
A roller 154 is pivotally supported at the tip thereof, and is in contact with the outer periphery of an eccentric cam 156. Eccentric cam 1
A fixed shaft 158 of 56 is attached to the output shaft of a motor 160.

This motor 160 is controlled by the control circuit 130, and when rotating, the eccentric cam 156 rotates the crank arm 152 around the axis of the rotating shaft 150.
As a result, the crank arm 148, the roller 14
6 to push up the drive rod 144,
The rod 64 is pushed into the magazine 24 by the drive rod 144, and the leader 10 is moved into the magazine 24.
The tip is pushed out from the drive endless belt 162
It is becoming more and more engaged.

This drive endless belt 162 is wound around a pair of gears 164, 166 in the supply section 110, and a protrusion 162A protruding from the inner circumferential portion is attached to the gears 164, 166 in the same way as the endless conveyor belt 36 in the magazine 24.
It meshes with 66. Also, the driving endless belt 16
The protrusion 162B formed on the outer periphery of the magazine 2
The opening 16 of the leader 10 fed out from the opening 16 of the leader 10 is engaged with the opening 16 of the leader 10 to feed the leader 10 to the developing section 108 . For this reason, the driving endless belt 162
is arranged at a position corresponding to the tip of the leader 10 sent out from the magazine 24.

Feed rubber rollers 170 and 172 are attached to the central shaft 168 of the gear 166, as shown in FIG.
It is used for shipping. This feed rubber roller 17
A pressure roller 174 attached to the supply section lid 106 is brought into contact with the rollers 0 and 172, thereby ensuring that the film 14 is sent to the developing section 108. These feeding rubber rollers 170,1
72 and the developing section 108 is provided with a film sensor 1.
76 is attached to detect the trailing edge of the film and send a signal thereof to the control circuit 130.

An upper portion of the gear 164 is provided to ensure that the leader 10 engages with the protrusion 162B of the endless drive belt 162 and that the film 14 securely engages with the rubber roller 1.
A guide plate 178 is arranged so as to be sent to 70,172.

Also, as shown in FIGS. 2 and 8, the gear 16
Patrone support plates 180 are arranged on both sides of the cartridge 4, respectively. These patrone support plates 1
When the leader 10 is sent to the developing section 108 by the endless driving belt 162, 80 supports the cartridge 12 connected to the leader 10 via the film 14, and transfers only the film 14 from inside the cartridge 12 to the developing section 108. It is possible to draw it out.

Further, these cartridge support plates 180 are movable in the direction toward and away from the developing section 108 by guide means (not shown), and are normally pressed in the direction away from the developing section 108 by the biasing force of an elastic body. However, when all the film 14 in the cartridge 12 is pulled out, the tension acting on the film 14 is transferred to the winding core 12.
A, the developing section 108 can be approached. This approaching state is detected by a limit switch (not shown), and a signal thereof is sent to the control circuit 130.

A cutter 186, which is driven by the control circuit 130 when the end of the film is detected, is disposed between the cartridge support plate 180 and the developing section 108. This cutter 186 has an upper blade 188 and a lower blade 190 arranged above and below the movement locus of the film 14, and the lower blade 190 is raised by a driving means such as a solenoid (not shown), and the upper blade 188
The film 14 is sandwiched between the two and cut.

Next, the operation of this embodiment will be explained.

A plurality of leaders 10 connected to the film 14 with adhesive tapes 20 are prepared in advance, and these are attached to the magazine 24 at regular intervals. In this case, the leader 10 only has to bring its film connecting end into contact with the engaging protrusion 46 sequentially from the frontmost part, and as a result, the identification lines 22 are arranged at regular intervals, so that the two leaders 10 are arranged one on top of the other. If they are installed at different intervals, this can be quickly detected and corrected. If the distance between the engagement protrusion 46 and the top surfaces of the vertical walls 28 and 30 is set to a size that allows only one leader 10 to fit therein, it is possible to reliably prevent two leaders 10 from stacking up.

With the lid 26 closed to the magazine body 25,
The magazine 24 has its small diameter portions 25E and 26B inserted into the cylindrical portion 112.

Here, when a development start button (not shown) is operated, the development work begins. When the developing operation is started, the control circuit 130 operates the solenoid 126, so that the hooks 122A and 118A are connected to the hook 106A of the supply section lid 106 and the magazine body 2, respectively.
5 and prevents opening of the supply section lid 106 and removal of the magazine 24. Therefore, the magazine 24 will not be inadvertently pulled out during the developing operation, or the supply section cover 106 will not be opened and the film being developed will not be exposed to light.

Meanwhile, the control circuit 130 drives the motor 160, causing the eccentric cam 156 to rotate. Therefore, the crank arms 152 and 148 rotate, and the drive rod 1
44 pushes the rod 64 into the magazine 24. This rotational force is transmitted to the rack 62, and the pin 54 fixed to the rack 62 protrudes from between the tooth tips of the pinion 58, causing the pinion 58 to rotate. By the rotation of this pinion 58, the endless conveyor belt 3
6 rotates, and the leader 10 is pushed out from the tip of the magazine 24 by the engagement protrusion 36B.

As a result, the leading end of the leader 10 comes into contact with the drive endless belt 162 within the supply section 110. In this case, the driving endless belt 162 is rotated at the same speed as the film transport speed in the developing section 108, so its rotation speed is relatively low, and compared to this, the feed speed of the leader 10 is relatively high. Therefore, the leader 10 is bent as shown in FIG. 1 under the compressive force. This bent leader 10 comes into contact with the recesses 32 of the vertical walls 28 and 30, so that the leader 10 is bent along the traveling direction of the endless conveyor belt 162 in a state where it is susceptible to the rotational force of the driving endless belt 162. , drive endless belt 1
62, the protrusion 162B reliably engages with the opening 16 of the leader 10, and the leader 10 opens into the developing section 1.
It will be pulled out to 08.

Also, the bent leader 10 is replaced by the next succeeding leader 10.
Since the engaging opening 16 is separated in the thickness direction, even if the engaging opening 16 is deformed and enters the opening of the next leader, it is separated, and the next leader is not inadvertently subjected to tensile force.

The dimensional relationship is such that when the leader 10 engages with the drive endless belt 162, the leader 10 is disengaged from the engagement protrusion 36B.

When the leader 10 is pulled out to the developing section 108, the film 14 and cartridge 12 connected thereto are also pulled out from the magazine 24, and the supply section 1
It reaches 10. However, the cartridge 12 that has reached the supply section 110 comes into contact with the cartridge support plate 180, and its movement to the developing section 108 is stopped. Therefore, the film 14 pulled by the leader 10 is taken out from the cartridge 12 and placed in the developing section 1.
08, and development work is performed.

When the entire amount of the film 14 is pulled out from the cartridge 12, the film 14 connected to the end of the core 12A pulls the cartridge 12 to the developing section 108 via the core 12A, so that the cartridge supporting plate 180 is able to handle the developing area. 108 direction.
This causes the cutter 186 to operate and remove the film 1.
The end of 4 is cut off. At the same time, the cartridge 12 whose tensile force has been released falls within the supply section 110 and is discharged.

When the tail of the cut film 14 passes the film sensor 176, the control circuit 130 again drives the motor 160 to raise the drive rod 144 and push up the rod 64. Therefore, the next leader 10 is projected into the supply section 110 and the developing operation is performed in the same manner as the previous one.

Next, a case will be described in which, while a plurality of cartridges 12 housed in the magazine 24 are being continuously developed, it becomes necessary to intervene and develop a separate urgently processed film first. In this case, the operator operates the interrupt development operation button. In this case, unlike continuous development, when the end of the film being developed is detected by the film sensor 176 during the operation, the motor 160 is deactivated. Further, in this state, the power to the plunger 128 is removed, allowing the magazine 24 to be extracted and the supply section lid 106 to be opened.

Therefore, the operator must attach the supply unit lid 106 to the pin 104.
The leader 10 with the film set in the state shown in FIG. The supply unit lid 106 is closed again. As a result, the plunger 128 is energized again, and the supply section lid 10
6 and the extraction of the magazine 24 are prevented, and the developing operation is started. Thereafter, when the development of the manually supplied film 14 is completed, the film in the magazine 24, which had been interrupted until then, is again sent to the supply section 110.

Furthermore, when the work is interrupted to develop separate films, if there are a large number of films, these urgently processed films are stored in a separate magazine, and this magazine is already connected to the tube portion 112. By replacing the magazine 24 and supplying the magazine 24, the same interruption development work as when the supply unit lid 106 is opened is performed, and when the development work of these urgently processed films is completed, the storage of the suspended films is resumed. It is only necessary to set the magazine 24 in the cylindrical portion 112.

When the developing operation of the film in the magazine 24 is interrupted in this way, the operation button for the interrupt developing operation is pressed and the film being developed is drawn out to the developing device 68 and is fed out to the end. In this case, the next reader in the magazine is in the supply section 11.
Since the unprocessed film in the magazine 24 whose development has been interrupted will not be exposed inadvertently, the unprocessed film in the magazine 24 will not be exposed.

When all the films in the magazine 24 have been developed, the solenoid 126 is de-energized and the locking means 114 is released, so the operator pulls out the magazine 24 and inserts the magazine 24 loaded with new films into the cylindrical section. 112. Note that the supply unit lid 106 may be provided with a manually releasable latch mechanism to prevent accidental opening.

〔Effect of the invention〕

As explained above, in the present invention, a film having a thin leader attached to the tip thereof is housed in a magazine main body, this leader is sent from the magazine main body to a developing device, and the film is guided by this leader to the developing device. A film supply magazine for supplying a film, which includes an endless belt on which a protrusion for engaging a leader is formed, a gear around which this endless belt is wound, a driving means for driving this gear, and a gear driven by this driving means. It has a stopper that allows the endless belt to rotate when the drive is rotating, and prevents the endless belt from rotating when the drive is stopped, thereby eliminating movement of the endless belt. It has an excellent effect of being able to sequentially send out the images to the developing device.

[Brief explanation of the drawing]

FIG. 1 is a diagram illustrating a connection state between a developing device and a film supply magazine to which the present invention is applied.
FIG. 2 is a longitudinal sectional view corresponding to a line cross section, FIG.
The figure is a perspective view showing the cartridge attached to the film, Figure 4 is a perspective view showing the film supply magazine with the lid open, Figure 5 is a plan view showing the magazine with the lid open, and Figure 6 is the magazine. Fig. 5 - A vertical sectional view along the line, Fig. 7 is an exploded perspective view showing the relationship between the endless belt driving gear and the stopper arranged in the magazine, and Fig. 8 is a film corresponding to the cross section in Fig. 2. FIG. 9 is a cross-sectional view of the film supplying state, and a perspective view of a drive structure for driving the film feeding means in the magazine provided in the film supply section. 10... Leader, 12... Patrone, 14...
...Film, 16...Opening, 24...Magazine,
25... Magazine body, 34... Gear, 36...
Endless conveyor belt, 56...One-way clutch,
58...Pinion, 62...Rack, 68...Developing device, 82...Stopper pin, 162...Endless belt.

Claims (1)

[Scope of Claims] 1. A film having a thin leader attached to the tip thereof is housed in a magazine main body, and this leader is sent out from within the magazine main body to a developing device, and the film is supplied to the developing device while being guided by this leader. The film supply magazine is a film supply magazine for use in the production of film, which includes an endless belt on which a protrusion for engaging a leader is formed, a gear around which the endless belt is wound, a drive means for driving the gear, and a drive means for driving the gear. A film supply magazine having a stopper that allows an endless belt to rotate during rotation and prevents rotation of the endless belt when the drive is stopped to eliminate movement of the endless belt. 2. The drive means includes a pinion that transmits rotational force to the gear, and a rack that drives the pinion,
2. The film supply magazine according to claim 1, wherein said stopper is a pin that protrudes from the rack and moves in and out of the rotation locus of the gear as the rack moves.