JPH01150664A - Film winding mechanism - Google Patents

Abstract

PURPOSE:To perform efficient and smooth winding which follows to a dancer roller, in a mechanism for winding a photographic film around a spool, by coupling a film winding shaft through a hysteresis clutch with a winding motor. CONSTITUTION:In a film winding mechanism, a film stock section is provided between a film winding shaft and the final end 10b of film through lowering of a dancer roller 9b, and that section is wound around the winding shaft through lifting of the dancer roller 9b. The film winding shaft is coupled through a hysteresis clutch 46 with a winding motor 45. Consequently, slip function is provided between the motor 45 and the winding shaft under a condition where the final end section 10b of film is restricted, and winding is performed corresponding to lift of the dancer roller 9b. When the dancer roller 9b reaches to the highest position and the rear end 10b of film is released, winding of film is finished.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to, for example, a film winding mechanism that can efficiently wind photographic film onto a spool.

[Background of the invention]

In general, a long film, such as a photographic film, is pulled out from a source roll, measured to a predetermined length, cut, and the leading end of the cut film is retained on a spool to speed up the continuous work of winding it. In this method, each of the working means is provided in each of a plurality of nests arranged at equal intervals on a rotating turret, so that all operations from measuring to winding can be completed during one revolution of the turret. desirable. That is, with this configuration, when the turret rotates once, it is possible to efficiently manufacture a number of film scrolls corresponding to the number of nests.

On the nest installed in such a turret, the tip of the film formed after measuring and cutting is locked to a spool attached to a spool chuck means, and when the spool is rotated and wound up, conventionally The final end (tail end) of the film was left free. Therefore, a servo motor or a pulse motor is directly connected to the drive shaft of the spool for ON/OFF control of the take-up motor.

However, in conventional control using a servo motor or a pulse motor, it is necessary to apply a corresponding pulse amount to the motor depending on the amount of rise of the dancer roller, making the control complicated.

[Purpose of the invention]

This invention is intended to solve the above-mentioned problem.The film starts to be wound with the tail end of the film being restrained, and the sliding function created between the motor and the winding shaft allows winding to follow the movement of the dancer roller. The purpose of the present invention is to provide a film winding mechanism that achieves the following.

[Structure of the invention]

In order to achieve the above object, the present invention creates a film stock portion between the film take-up shaft and the final end of the film by the descent of the dancer roller, and the film stock portion is formed on the take-up shaft as the dancer roller rises. In a film winding mechanism designed to wind the film, the film winding shaft is connected to the winding motor via a hysteresis clutch, so that when the tail end of the film is restrained, there is a gap between the motor and the winding shaft. A sliding function occurs, and as the dancer roller rises, the film is wound accordingly. When the dancer roller reaches its highest position and the film tail end is released, the film winding can be completed. It is composed of

〔Example〕

Next, the present invention will be described based on an embodiment shown in the accompanying drawings.

FIG. 1 is a schematic front view of the main mechanism of a film scroll manufacturing apparatus. In the figure, 1 rotates at a constant speed counterclockwise around a central shaft 2 supported by a fixed frame 17. A plurality of (four in the figure) nests 3 are arranged at equal intervals on the turret i. On the outer periphery of each nest 3, from the tip side in the rotational direction of the coolet, there is a film cutting means 4, a spool chuck means 5 having a drive means 15 for driving the spool in the winding direction, and a spool 6 attached to the spool chuck means 5. A locking means 7 for locking the tip end 10a of the film 10, a film gripping means 8, and a film measuring means 9 are respectively provided.

As shown in FIGS. 2(a) and 2(b), the spool 6 has a slit 6b in its body 6a, and a locking hole 10 formed in the tip 10a of the film 10 is provided in the slit 6b.
A locking claw 6b' for locking C is provided.

Additionally, flanges 6 provided on both axial end sides of the body portion 6a.
A similar boss 6d and a long boss 5d' are provided on the outside of C and 6c', and a beam 6e with which the tip forks of the spindles 5a and 5b of the spool chuck means 5 engage is provided in the inner cavity thereof. 6f is a positioning rib provided on the outer periphery of the body portion 6a.

Further, as shown in the third figure, the film IO has perforations 10d perforated in advance on both sides, and the screen area near the perforations is filled with latent images (not shown) of frames, trademarks, etc. It's included. Further, positioning holes toe for determining the number of frames, such as 12, 24, or 36 frames, are bored in the film 10 at intervals corresponding to the length thereof. The positioning hole 10e is used to cut an end piece (shaded with diagonal lines) that is discarded after forming a leading end 10a of the film, which is the starting end for winding onto the spool, and a trailing end 10b, which is the end of winding the film, when cutting by the film cutting means 4. part) 11 to prevent it from remaining in the product film.

The spool 6 is loaded in advance into a spool chute 18 installed at an angle on the upper part of a fixed frame 17, and the lower end of the chute 18a is moved by the slope of the spool chute 18 and the feeding of a plurality of brush rollers 19 installed on the upper surface side of the spool chute 18. are lined up. The spools 6 aligned at the lower end opening 18a are received by the groove 21 in the spool receiver provided on the outer periphery of the spool supply drum 20, starting from the tip one at a time.
It is designed to be conveyed at a constant interval to the side surface of the

The spool supply drum 20 is composed of two disks that rotate at a constant speed in the clockwise direction by a drive motor (not shown) connected to a shaft 20', and the spool receiver provided on the outer periphery of each disk is provided with a groove 21 for feeding the spool. The inner sides of both end bosses 6d and 6d' of 6 can be fitted. In this spool receiver, the groove 21 has a slope portion 21a that gradually deepens from the outer periphery of the disk toward the rear in the rotation direction, a step portion 21b provided at the deepest portion, and a concave pocket portion. 21c.

As a result, the rotation of the drum 20 causes the chute lower end opening 18 to
The spool 6 aligned in the direction a is introduced into the groove 21 from the slope portion 21a as shown in FIG. By fitting into a pocket portion 21c provided at the deepest portion of the slope portion 21a, it is possible to pass through the upper opening member 18b. That is,
Only one of the spools 6 aligned at the chute lower end opening 18a is fitted into the pocket portion 21C and passes through the upper opening member 18b, and is sandwiched between the outer guide member 22 installed to cover the outer circumference of the drum. and is conveyed to the side of the turret 1. Two free rollers 23 and 23 on which the spool 6 fitted thereon is disposed in opposition to the pocket portion 21C, so that the spool 6 can be transferred by friction while being conveyed along the outer guide member 22, This is to prevent scratches etc. from occurring during transportation.

Note that the upper opening member 18b pivotally supports the free roller 24 so that the spool 6 does not get caught in the corner thereof. In addition, in consideration of the possibility of jamming, it is configured so that it can escape from the drum 21 by resisting the tension spring 26 around the shaft support 25 with the spool chute 18.

The film 10 is loaded into a film drum 27 in a rolled state, and is pulled out from the film drum 27 by a drive sprocket 28 and a bad roller 29 that is in pressure contact with the film drum 27, and then transferred to a film accumulator 30.
It passes through the lower surface of the guide roller 31 which is pivotally supported by the fixed frame 17 of the turret 1, and then the upper side of the fixed roller group 9a of the measuring means 9, and between the upper and lower members 3a and 3b of the film gripping means 8, is locked. Upper and lower shoes constituting the means 7) 7a
,? b and between -1 and -7 rollers 7c and 7d, and is latched to a slit in a spool 6 attached to spindles 5a and 5b of spool chuck means 5. This locking of the leading end of the film to the spool 6 must be done manually by the operator when setting the film for the first time, but from then on it is automatically done by the action of the locking means 7.

The film accumulator 30 has a dancer roller group 301 and a fixed roller group 302 therein, and runs the film in a meandering manner so that the tension of the film can always be maintained constant. That is, the speed of the film fed out by the constant rotation of the drive sprocket 28 is set to be synchronized with the rotation speed of the turret 1, but as will be described later, there is an operation for locking the leading end of the film to the spool, a meter and a meter. This is to absorb fluctuations in film feed speed that may occur during cutting operations.

As shown in FIGS. 6 and 7, the film cutting means 4 includes a fixed blade body (lower blade) 4a having a cutting edge 4a', and the cutting edge 4.
A movable blade body (upper blade) 4 having a cutting edge 4b' that rubs against a'
b. Normally, this film cutting means 4 is placed on standby behind the film path line as shown in FIG.
The film 1 is moved in the direction of the arrow by an actuating means (not shown) that moves in sliding contact with a cam (not shown) provided on the 7 side.
0, and at that position, the movable blade body 4b engages the guide shaft 4.
The film 10 can be cut by moving downward along the direction C. In addition, film holding members 12 and 13 are provided at the front and rear of the movable blade 4b for holding both ends of the cut portion between the front and rear upper surfaces of the fixed blade 4a after cutting the film, and the movable blade A positioning pin 14 that can be fitted into a positioning hole 10e formed in the film 10 is provided on the lower surface of the cutting edge 4b' of the body 4b. This positioning pin 14 is used to define a film cutting reference position so that the cutting position and the latent image position always match.

As shown in FIG. 8, the spool chuck means 5 includes spindles 5a and 5b facing each other on the rear side and the front side, and one spindle 5a is fitted into a shaft 151 connected to the drive means 15, and is fitted with appropriate means (not shown). can slide in the chuck direction and chuck release direction. Further, the spindle 5b can also be slid by a solenoid or the like.

The driving means 15 is for rotating the spool 6 only in the winding direction, and as shown in FIG.
It is composed of a hysteresis clutch 46 and a brake 47. The rotational torque of the motor 45 is transmitted from the shaft 151 to the spindle 5a via the hysteresis clutch 46.

Inside the movable area of the spindles 5a, 5b, the spool receiver has four parts into which the bosses 6d, 6d' at both ends of the spool 6 fit, and the plates 5c, 5d are movable in the approaching and separating directions by appropriate driving means (not shown). It is set up so that you can.

The plates 5c and 5d of this spool receiver are for temporarily receiving the spool 6 conveyed to the side surface of the turret 1 by the spool supply drum 20 at that position, and the spool 6 temporarily received by these is fixed. Guide member 1
The turret 1 is held stably in a sandwiched state between the turret 1 and the fixed guide member 16, and is transferred as the turret 1 rotates as shown by the arrow in FIG. It comes to be chucked by 5a and 5b.

The film locking means 7 includes upper and lower chutes 1a and 7b which are opened and closed by driving means as appropriate around a shaft 40 as shown in FIGS. When the upper and lower chutes 7a and 7b are opened, the upper chute 7a is attached to the spindle 5a of the spool chuck means 5, as shown in FIG.
, 5b, and the lower chute 7b is located below the film pass line. And, when closed, the upper shoot is shown in the same figure (b). After moving forward to the spool position, the spool a swings downward so that a stopper 7a' formed at the tip can be brought into sliding contact with the outer periphery of the upper surface of the spool 6. This is because the spool 6 is rotated by the drive means 15 connected to one spindle 5a of the spool chuck means 5, and the positioning rib 6f provided on the body 6a is brought into contact with the spool 6 to position the spool 6b. be. On the other hand, the lower chute 7b swings upward and comes into contact with the lower surface of the upper chute 7a. A film guide is formed on the contact surfaces of the upper and lower chutes 7a and 7b.

The nip rollers 7c and 7d are shown in FIG. 10(a) when opened.
As mentioned above, the lower shoe (7b) swings upward and the upper shoe (7b)
Before coming into contact with 7a, the film tip 10 on the film path line is held and swung upward. During this rocking, the fan gear 41 supported by the shaft 40 rotates counterclockwise, and the gear 42 meshed with this rotates clockwise, so that the fan gear 41 is integrated with the gear 42. The lower roller 7d reverses, and the leading edge 10 of the film held therebetween is pulled in the opposite direction to the film running direction and transferred upward, and the upper shoe 1 is moved as shown in the figure fbl.
-7a, and lower chute 7b and upper shoe)
7a.

Thereafter, the rotation of the fan gear 41 in the clockwise direction causes the lower roller 7d to rotate in the counterclockwise direction, and operates to send out the leading end of the film being held toward the spool 6. In this case, as mentioned above, the spool 6 is connected to the upper chute 7a.
The slit 6b and the upper and lower chute 7a are positioned by the tip 7a' of the slit 6b and the upper and lower chute 7a.

Since the film guide formed on the contact surface of 7b faces directly, the leading end of the film fed out by nip rollers 7c and 7d is inserted into slit 6b of spool 6.
In addition, the locking hole at the leading end of the film is locked to the locking claw in the slit. In this figure, reference numeral 43 denotes a touch roller that rotates about the shaft 40 and slides into contact with the lower surface of the spool 6, and is used to support the film that is wound up as the spool 6 rotates.

As shown in FIG. 11, the film measuring means 9 includes a plurality of pieces (
The movable member 44 is arranged so that the film can pass between the fixed roller group 9a (four in the figure) and each roller of the fixed roller group 9a from above to below (towards the center of the turret 1). and a dancer roller group 9b. Normally, this tancer roller group 9b stands by behind the film path line so as not to interfere with the running of the film 10, and is driven by an appropriate drive means, such as a cam provided on the fixed mount 17 side of the turret 1, at the time of measurement. (not shown)
It is moved to the front side by an actuating means (not shown) that moves in sliding contact with the film 10, and is positioned on the upper surface of the film 10. At that position, it is moved downward to cause the film 10 to meander as shown in the figure. It has become. Therefore, as shown in Figure 12, the length l of the film between the rollers at both left and right ends of the fixed roller group 9a increases by that amount by meandering.
If the length of the film from one cutting point to another when the dancer roller group 9b is not activated is set as the length of 12 shots, for example, by adjusting the movement amount of the dancer roller group 9b, or By changing the number of rollers in the roller group 9b, a longer film length of 24 or 36 shots can be determined.

Measurement by this measuring means 9, that is, dancer roller group 9
As shown in FIG. 11, the lowering of b is carried out almost simultaneously with the start of operation of the cutting means 4 of the succeeding nest.

The dancer roller group 9b is temporarily stopped by a stopper (not shown) just before reaching the lowest point, and during this time the positioning pin 1 provided on the movable blade 4b of the cutting means 4 is stopped.
4 are fitted into positioning holes 10e made in the film 10 at every measuring pitch.

In this state, the stopper is released and the dancer
The roller group 9b is lowered again by the action of a spring (not shown). Due to this descent, the film 10 is slightly pulled,
The hole end of the positioning hole 108 hits the positioning pin 14,
Accurate positioning and fine adjustment of the cutting position of the film 10 can be achieved.

The measuring operation by the measuring means 9 proceeds simultaneously with the locking operation by the film locking means 7, but the film 10 is held by the film gripping means 8 between both means so that both operations are not influenced by each other. ing. This film gripping means 8 is composed of an upper member 8a and a lower member 8b as shown in FIG. Before the film is cut by the operation of the film cutting means 4 provided in the same nest, it is moved toward the front by an appropriate drive means, reaches the upper surface of the film IO, and is moved downward almost simultaneously with the film cutting to cut the film l.
It is now possible to grasp O.

The motor 45 constituting the driving means 15 to which one spindle 5a of the spool chuck means 5 is connected operates as described above (the upper member 8a of the film gripping means 8 moves upward to release the film 10 and lock it). Upper and lower chute 7 of means 7
Immediately before each of nip rollers a, 7b and nip rollers 7c and 7d return to their initial positions, current is applied, and almost at the same time, current also flows to hysteresis clutch 46. Thereafter, by turning off the brake 47, the spool chuck means 5
A motor 45 is attached to the spool 6 attached to the spindle 5a.
rotational torque is transmitted, but the movable blade 4b of the film cutting means 4 provided for the subsequent nest is still attached to the film 10.
Immediately after cutting, hold both ends of the film with the film holding member 12.
．． 13, the hysteresis clutch 46 is slipping. At this time, when the movable member 44 provided with the dancer roller group 9b of the film measuring means 9 rises along the guide block 44' (moves toward the outer circumferential direction of the turret), a torque is applied to the spindle 5a via the hysteresis clutch 46. The transmission is performed, the spool 6 is rotated by that amount, and winding of the film 10 is started. Thus, the dancer roller group 9b is replaced by the fixed roller group 9.
When the movable blade 4b of the film cutting means 4 provided in the subsequent nest moves upward to release the restraint on the film tail end, torque is transmitted to the spindle 5a via the hysteresis clutch 46. The film is then wound. Therefore, there is no resistance to the film being wound up.

When the first sensor 48 detects the rear end portion 10b of the film to be wound, the brake 47 activates the motor 4 based on the signal.
When the second sensor 49 detects the rear end portion 10b of the film, the rotation speed of the spindle 5a is reduced.
It operates to completely stop the rotation of the

In FIG. 1, 50 is a box for collecting the film end pieces 11 that are discarded during cutting by the cutting means 4. The film end piece 11 is transported while being anchored by a vacuum suction means (not shown) provided on the fixed blade 4a of the cutting means 4, and is released from suction at the upper part of the collection box 50. Reference numeral 51 denotes a transfer means for holding the rear end of the film 10 wound around the spool 6 with a holder (not shown) and transferring it to the next step, for example, to an insertion device into a cartridge.

FIG. 14 shows an operating signal transmission device between the turret side and the fixed frame side.

The turret l rotates around a shaft 2 that is supported on a fixed pedestal 17, and the above-mentioned working means provided for each nest arranged on the turret are driven by cam means provided on the fixed pedestal side. Detection control of actuators such as motors and solenoids above, and photoelectric proximity sensors requires transmission of signals from the fixed mount side to the turret side,
Conversely, it becomes necessary to transmit the detection results of the sensors, etc., as a signal from the turret side to the fixed frame side. Therefore, in this embodiment, the configuration is such that two-way communication can be performed through the shaft 2 by optical communication. In this embodiment, optical communication is carried out between the turret 1 and the fixed frame 17 by passing optical fibers 55 and 56 through the shaft 2 using optical multiplex links 53 and 54 with different wavelengths, respectively. F circuit 57.58
By connecting it to the controllers 59 and 60, it is possible to perform simultaneous two-way communication at high speed with one axis. This is because in bidirectional communication, which uses single-wavelength light and transmits data in a time-division manner, there is always a time when communication cannot be performed on one side, making high-speed communication impossible.

In the above case, if the system is configured using FMiffl signals instead of optical links, control will be performed using wireless communication. However, although wireless communication is convenient, it is susceptible to noise, so it is not possible to Control using optical links is more reliable and stable. Of course, this does not mean that wireless communication control cannot be applied to this embodiment.

Next, the effects of the above embodiment will be explained in Figs. 15(a) to (1).
The explanation will be based on 1.

Note that this figure shows the relationship between the film locking means 7, the film cutting means 4, and the film gripping means 8.

FIG. 5A shows the state after the spool 6 is attached to the spool chuck means 6. In this state, the film 10 has been measured by the measuring means provided in the nest preceding the nest, and the movable blade 4b and the upper and lower chutes 7a, 7b of the cutting means 4 provided in the nest are in the standby position on the back side. Move from to on the film path line. in this case,
The upper and lower chutes 7a, 7b and the nip rollers 7c, 7d are both open and waiting.

When the turret further rotates, the movable blade 4b of the cutting means 4 moves downward (■) as shown in FIG. As a result, after the positioning pin 14 provided on the lower surface of the movable blade body 4b is fitted into the positioning hole 10e of the film 10, the movable blade body 4b
The film 10 is held between the front and rear parts of the fixed blade body 4b by film holding members 12 and 13 provided at the front and rear parts of the fixed blade body 4b. Following this, the upper shoe) 7a swings (■
) and bring its tip into contact with the outer periphery of the spool 6.

Next, the nip rollers 7c and 7d move in opposite directions (■) to sandwich the film 10 between them, as shown in FIG. Almost parallel to this, one spindle 5a of the spool chuck means 5 is connected to a driving means 15.
is activated and rotates the spool 6 (■). As a result, the positioning rib 6r provided on the body 6a of the spool 6 abuts against the tip end stopper 7a' of the upper chute 1a, completing the orientation of the slit 6b provided on the body of the spool 6.

Next, the upper member 8a of the film gripping means 8 is
), and the film 10 is held between it and the lower member 8b. Then, the movable blade 4b of the cutting means 4 further moves downward (■) to cut the film 10 between it and the fixed blade 4a. In this cutting, the leading end 10a of the film and the trailing end 1
0b is formed at the same time.

Next, as shown in the figure (el), the movable blade 4b of the cutting means 4 moves upward (■) to release the leading end 10a and rear end 10b of the film held by the film holding members 12 and 13. Thus, the film trailing end 10b side is wound onto a spool provided in the preceding nest and pulled in the direction of arrow a, while the film leading end 10a side is wound by the nip roller 7c,
7d swings upward (■), and during the swinging process, it rotates in the opposite direction (■) due to the operation of the fan gear and is pulled out in the direction of the arrow. In this case, since the film 10 is held by the film holding means 8, it will bend in a curved shape.

In this way, the nip rollers 7c, 7 swung upward.
d stops its swinging when the leading end portion 10a of the film clamped during this period comes into contact with the upper shoe 1-7a as shown in FIG. Then, the lower chute 7b moves upward (el) L so as to follow the nip rollers 7c and 7d that swing upward, and pinches the film leading end 10a between it and the upper chute 7a. As a result, the leading edge of the film 10
a faces the slit 6b of the spool 6.

Next, the nip rollers 7c and 7d rotate counterclockwise (0) as shown in FIG. a and 7b as guides, and insert it into the slit 6b of the spool 6. The locking hole 1 formed in the film tip lOa by this insertion
0c is locked by a locking claw 6b' in the slit 6b.

Then, the touch roller 43 that was in the standby position moves upward (@) and comes into contact with the outer periphery of the spool 6.

After that, the upper member 8a of the film gripping means 8 moves upward (@) and separates from the lower member 8b to release the film 10, as shown in FIG. The shoes 1-7a each return to their initial positions (0 to [phase]) almost simultaneously.

Then, as shown in FIG. 1 (1), the spool 6 is rotated (O) by the operation of the drive means 15 to which one spindle 5a of the spool chuck means 5 is connected, and the film 10 is wound up.

The film scroll thus formed is held by a holder (not shown) so that the rear end of the film does not unravel, and is transferred to the next process.

During the above operation, after the film 10 is gripped by the film gripping means 8 in FIG. The measuring operation of the measuring means 9 proceeds at the same time, and by the time the spool 6 is driven to start winding the film as shown in FIG. Needless to say, this has been completed.

In the above embodiment, the spool 6 is supplied to the spool chuck means 5 from the diagonally upper right side of the turret 1, and the film is supplied from the side surface of the fixed frame.
The layout is such that the completed scroll is collected diagonally from the bottom right, but the spool is fed from the bottom right of the turret, the film is fed from the bottom of the turret, and the scroll is collected from the bottom left diagonally. good.

In addition, although the above-mentioned example explained scroll of photographic film, it is not limited to this only, and of course can be applied to the manufacture of other scrolls.

〔Effect of the invention〕

As described above, in this invention, a film dock portion is formed between the film take-up shaft and the final end of the film by the descent of the dancer roller, and that portion is wound onto the take-up shaft as the dancer roller rises. The film winding mechanism is characterized in that the film winding shaft is connected to the winding motor via a hysteresis clutch, so that when the tail end of the film is restrained, the motor and winding A sliding function occurs between the shafts, and the dancer roller takes up the corresponding amount as it rises. When the dancer roller reaches the highest position and the restraint on the film tail end is released, the film winding begins. The winding mechanism can be completed easily and the winding can be done efficiently (and smoothly) by following the movement of the dancer roller.

[Brief explanation of the drawing]

Figure 1 is a conceptual diagram of the scroll manufacturing device, Figure 2 (a),
(b) is a side view and cross-sectional view of the spool, Figure 3 is a plan view of the film cutting section, Figure 4 is a diagram of the relationship between the spool supply drum and the spool chute, Figure 5 is a diagram of the spool receiver and the groove, Figure 6 is a schematic front view of the film cutting means;
The figure is a schematic side view of the cutting means, FIG. 8 is a front view of the spool chuck means, FIG. 9 is a diagram of the relationship between the spool receiver and the fixed guide member, and FIGS. FIG. 11 is a front view showing the action of the stop means, and FIG. 11 is a perspective view showing the film measuring means, cutting means, and film gripping means.
Fig. 2 is an explanatory diagram at the time of measurement, Fig. 13 is a perspective view showing the spool driving means, Fig. 14 is an explanatory diagram showing the signal transmission device between the turret side and the fixed frame side, and Fig. 15 (a). )～(
i) is an explanatory diagram showing the action mainly of the film locking means. 1 - Turret 2 - Shaft 3 - Nest 4 - Film cutting means 5 - Spool chuck means 6 - Spool 7 - Film locking means 15 - Drive means 45 - Motor 46 - Hysteresis clutch 47 - Brake Fig. 2 (b ) Fig. 3 10dI○bl (JeIt+ua Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 9 Fig. 10 (b) Fig. 14 Fig. 15 Fig. 15 Fig. 15

Claims (3)

[Claims] (1) A film stock section is created between the film winding shaft and the final end of the film by the lowering of the dancer roller.
Further, in the film winding mechanism, the film winding mechanism is configured such that the portion is wound onto a winding shaft as the dancer roller rises, and the film winding shaft is connected to a winding motor via a hysteresis clutch. Film winding mechanism. (2) The film winding mechanism according to claim 1, wherein the tail end of the film is released when the dancer roller finishes rising in the winding mechanism. (3) Using two photoelectric transmissive sensors, the winding shaft is decelerated.
2. The film winding mechanism according to claim 1, wherein the film winding mechanism stops.