JPH01257830A - Film winding device - Google Patents

Abstract

PURPOSE:To release a winding stop mechanism for a film from winding stop operation with a small force quantity and to reduce respective members in size by relaxing a load placed on the winding stop mechanism at the end of film winding when a film begins to be wound up, and then winding the film. CONSTITUTION:When a 1st winding stop member 29 and a 2nd winding stop member 30 cooperates to inhibit a film winding means from winding the film at the end of the winding of the film, the 2nd winding stop member 30 engages the 1st winding stop member 29 tightly. The engagement between both members 29 and 30 is relaxed by relaxing members 30f and 40h prior to the operation of releasing means 101, 103, and 104, so the force quantity required for the releasing means 101, 103, and 104 to release both members 29 and 30 from engaging may be small. Consequently, the 2nd winding stop member 30 is released from engaging the 1st winding stop member 29 with the small force quantity and the respective members which constitute the releasing means 101, 103, and 104 are reducible in size.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a film winding device for a camera, and its winding release mechanism is improved.

BACKGROUND ART Conventionally, cameras equipped with a mechanism for winding film electrically have been widely used. In cameras with such an automatic film winding mechanism, a relatively large load is placed on the film winding mechanism when film winding is completed, and the film winding mechanism has to be unwinded at the next film winding. requires a large release force. There are various structures for the release mechanism corresponding to the structure of the winding mechanism. but,
Regardless of the structure of the release mechanism, it is generally provided with a drive source for releasing the winding mechanism. For example, if the release mechanism uses a spring-operated lever to unwind the film, a holding means (drive source) is required to hold the lever in the unwound state against the repulsive force of the spring. Become. If, for example, a magnet is used as the holding means, the size of the magnet that can be stored in the camera body is naturally limited. In other words, there is a limit to the power that magnets can exert. Therefore, there is a limit to the amount of force that can be locked by the spring. The driving ability of this driving source must be at least greater than the above-mentioned release force. On the other hand, in order to promote miniaturization of cameras, it is desirable that the drive source housed within the camera body be as small as possible. Therefore, making it possible to unwind the film with a small amount of force is one of the important factors that leads to downsizing and cost reduction of cameras. Furthermore, if it is possible to unwind with a small amount of force, the film can be reliably unwound, and as a result, the reliability of the film winding device is improved.

[Problem to be solved by the invention]

Therefore, the problem to be solved by the present invention is to wind the film after the load on the film winding stop mechanism is relaxed when the next film winding starts. . The present invention is
This invention has been made from this point of view, and its purpose is to provide a film winding device having a film unwinding mechanism capable of releasing the winding action of the winding mechanism with a relatively small amount of force. This is what I am trying to do.

[Means for solving the problem, and actions/effects] (Structure
In order to achieve the above object, the present invention was constructed as follows. That is, the film winding device of the present invention includes a drive motor, a film winding means that is driven by the drive motor and winds the film, and a first winding member connected to the film winding means. a second winding mechanism that engages with the first winding mechanism to prevent the operation of the film winding means; a release means for releasing the engagement of the second winding stopper member with the first winding stopper member; and a release means driven by the motor;
Prior to the operation of the release means, the release mechanism is provided with a relaxation mechanism that operates to slightly loosen the engagement between the second winding member and the first winding member. Specifically, the present invention is preferably configured as follows. That is, the film winding device includes a drive motor that winds the film, a charging device that is driven by the motor and charges the aperture, mirror, shutter, etc., and a film winding device that is driven by the motor and winds the film. a cam member connected to the film winding means; and a winding stop biased along the direction of the film winding action, the winding stop engaging the cam member to prevent the winding action of the film winding means. a film winding mechanism comprising a lever; a detection means for detecting completion of the charging operation of the charging means; and a film winding mechanism for moving the film winding lever in a winding release direction.
A tiltable release lever means biased along the unwinding direction, and the release lever means is held in a predetermined position against the biasing force, and the position of the release lever means is maintained by the operation of the detection means. holding means configured to release the winding stopper lever; and a holding means driven by the motor and holding the winding stopper lever to such an extent that the engagement state between the winding stopper lever and the cam member is loosened prior to activation of the release lever means. A specific embodiment of the retaining means is a magnet whose attraction force disappears when energized. can. Then, one end of the release lever means is previously attracted to the magnet against the biasing force,
The film winding mechanism maintains the winding state, that is, the engagement state between the film winding lever and the cam member. Further, the relaxation mechanism is a cam member that is driven by the motor, rotates once in conjunction with the operation of the charging means, and can slightly move the winding stop lever in the winding release direction immediately before the charging operation is completed. This can be achieved by (Function) According to the above configuration, when the first winding stopper member and the second winding stopper cooperate to prevent the unwinding operation of the film winding means when winding of the film is completed, the second winding The engagement of the stopper member with the first winding stopper member becomes tighter. That is, when the operation of the film winding means is stopped, the film winding mechanism is in a tensioned state. In this state, in order to operate the release means and release the engagement of the second winding member with the first winding member, the release means requires a large amount of strength. However, prior to the operation of the release means, the relaxation mechanism makes the engagement between the two members shallow (that is, the tension of the retaining portion is relaxed), so that the release means releases the engagement between the two members. The amount of strength required to do so may be small. That is, if the magnet is used as a drive source for operating the release means, a small magnet can be used. (Effect) In the above configuration, the first winding member of the second winding stopper can be moved with a small amount of force.
Since the engagement with the winding member can be released, each member constituting the release means can be downsized. The drive source necessary to operate the release means is also
Specifically, a magnet with a small driving capacity (adsorption force) can also be used. In other words, the film winding device of the present invention can be said to be a suitable film winding device that makes the camera more compact by downsizing the film winding mechanism. Furthermore, this winding mechanism allows the winding operation to be performed using a drive source with a small driving capacity, which contributes to the cost reduction of the camera, and also ensures reliable film winding operation as the film unwinding is carried out effortlessly and reliably. Sexuality will also improve.

【Example】

An embodiment of the present invention will be specifically described below based on the drawings. Figure 1 is a perspective view of the entire winding/rewinding mechanism, Figure 2 is a perspective view of the planetary mechanism, Figure 3 is a sectional view of the planetary mechanism and the vicinity of the overload prevention fringe, and Figure 4 is the overload prevention mechanism. It is a top view of a prevention friction part. 5 and 6 are plan views of the vicinity of the film stopper, and FIG. 5 shows the state immediately before the film is wound up after the release is completed and before the charging is completed, and for easy understanding of the embodiment. It is drawn with some parts of the jersey style and film style. FIG. 6 shows the state in the middle of unwinding the film. 7 to 9 are plan views of the vicinity of the jersey winding stop, with FIG. 7 showing the charging completed state, FIG. 8 showing the state after the release is completed and before the start of winding, and FIG. 9 showing the charging midway state. FIG. 10 shows a plan view of the film pressing roller releasing section. Figures 11 and 12 show timing charts,
FIG. 11 is a timing chart during normal film winding, and FIG. 12 is a timing chart during initial loading (idle feeding). In FIG. 1, reference numeral 1 denotes a winding/unwinding motor, which is built into the spool 14. As shown in FIG. 3, a gear Ib is attached to the shaft 1a of the motor I.
This gear 1b meshes with the reduction gear 2. A friction gear 3 that rotates around the same shaft 91a as the reduction gear 2 is placed below the reduction gear 2, and a spring 4 is wound around the second portion 3b of the friction gear 3. The reduction gear 2 has two vertical walls 2b and 2e formed at the lower part of the reduction gear 2, as shown by dashed lines in FIG. Both arms 4a and 4b of the spring 4 protrude from between the vertical walls 2b and 2e of the reduction gear 2. When the reduction gear 2 rotates counterclockwise, the side surface 2c of the vertical wall 2b of the reduction gear 2 rotates the spring 4 and the flexible gear 3 counterclockwise. When a load above a certain level is applied to the flexible spring gear 3, the spring 4 and the flexible spring gear 3 slide against each other, and rotation is no longer transmitted to the flexible spring gear 3. When the reduction gear 2 rotates clockwise, the other side 2d of the vertical wall 2b of the reduction gear 2 is rotated by the other arm 4 of the spring 4.
Press b to rotate friction gear 3 clockwise. When a load of more than a certain value is applied to the friction gear 3, the spring 4 and the friction gear 3 slide against each other as in the case of counterclockwise rotation, and the friction gear 3
Rotation cannot be transmitted to. In this embodiment, such a spring is used, but a compression spring may be used so that it slips when a load of a certain value or more is applied. The gear 3a of the friction gear 3 meshes with the large gear 5a of the first reduction gear 5. As shown in Figure 2, the first
The first small gear 5b of the reduction gear 5 meshes with three planetary gears 6. The planetary gear 6 rotates around a shaft 7b formed integrally with the gear 7. This shaft 7 is attached at its upper part to a carrier plate 8. Further, the carrier plate 8 is attached to the shaft 9 so as to rotate integrally with the shaft 9. Therefore, the gear 7 and the shaft 9 come to rotate integrally. As shown in FIG. 3, the upper end 9a of the shaft 9 is rotatably fitted into a hole 91b of a base plate 91 fixed to a body (not shown), and the lower end 9b of the shaft 9 is fixed to the body. It is pivotally supported by a bearing 94 attached to a base plate 92. This shaft 9 also serves as rotational support for the first reduction gear 5 and the second reduction gear 10. The three planetary gears 6 are the second reduction gear 1
It meshes with an internal gear IOa formed inside the 0. The first small gear 5b of the first reduction gear 5, the planetary gear 6, the internal gear [Oa] of the second reduction gear 10, the gear 7, and the carrier plate 8 constitute a planetary gear mechanism. That is, the rotation of the planetary gear 6 rotates the second reduction gear 1O via the internal gear IOa, and the revolution of the planetary gear 6 allows the gear 7 and the carrier plate 8 to rotate together with the shaft 9. Whether the planetary gear 6 rotates or revolves,
It depends on which is smaller, the load applied to the second reduction gear 10 or the load applied to the gear 7. In FIG. 3, a spool drive gear 12 rotatable around the upper part 10d of the second reduction gear 10 is fitted, and a spring 11 is wound around the lower part 12b of the spool drive gear 12. At the lower end of this spring>'II, an arm 11a integral with the spring 11 projects outward in the radial direction, and is inserted into a notch formed in an annular projection 10c provided on the second reduction gear 10. The arm 11a is fitted. The rotation of the second reduction gear 10 is transmitted to the spool drive gear I2 via the spring 11. The spool drive gear 12 meshes with an internal gear 14a formed integrally with the spool 14, and rotates the spool 14 by rotation of the spool drive gear I2. The transmittable torque between spring II and spool drive gear 12 is set to provide sufficient force to wind up the film on spool 14. Therefore, during normal film winding, no slippage occurs between the sprinkling gear 1 and the spool drive gear 12. This spring 11 is provided so that the photographer can open the back cover and pull out the film by hand without rewinding the film wound around the spool 14. In this case, the spring 11 and the spool drive gear 12 are connected to each other. They will slide on each other. As shown in FIG. 1, a gear IOb is provided on the outer periphery of the second reduction gear 10, and this gear IOb meshes with the large gear 20a of the reduction gear 20. A small gear 20b provided at the lower part of the reduction gear 20 meshes with a planetary gear 2I supported by a carrier plate 22 that rotates around the same axis 21 as the reduction gear 20, and is further opposed to the planetary gear 2I. The large gear 23a of the reduction gear 23
is installed. When the reduction gear 20 rotates clockwise, the carrier plate 22 also rotates clockwise, so that the planetary gear 21 and the large gear 23a of the reduction gear 23 mesh with each other. A small gear 2' 3 b is provided above the reduction gear 23, and this small gear 23b meshes with the sprocket gear 24. The sprocket gear 24 has a shaft 24 in two parts.
b and engages with the recess 25a of the sprocket 25. c, and a shaft 24d above which rotates the code plate 26 integrally. A pattern 26a is formed on the code plate 26, and sliding contact pieces 27 and 28 are arranged on the upper part of the pattern 26a. Code plate 26 and sliding contact piece 27
, 28 constitute the third switch SW3, and the code plate 26
The third switch SW3 is turned on and off by the rotation of the switch SW3. The sprocket gear 24 further meshes with a winding stop gear 29. The stopper gear 29 has a cam 29d at its lower part. The cam 29d has four parts 29b.
A convex portion 29c is formed. A protrusion 30a of a stopper lever 30, which can rotate independently of the reduction gear 20 around the same axis 21 as the reduction gear 20, is fitted into the recess 29b. The winding stopper lever 30 is urged counterclockwise by a leaf spring 31 at its tip 30c. The leaf spring 31 and the opposite leaf spring 32 constitute a first switch SW+. The convex portion 30a of the wind stop lever 30 and the recess 2 of the wind stop gear 29
9b is engaged, the first switch SWI is in an off state. The winding stopper lever 30 further includes a bent portion 30.
It has b. A tip 33a of the lever 33 that rotates about the axis 22 faces the bent portion 30b of the winding stopper lever 30. The other end 33b of this lever 33 is adapted to engage with a locking plate 13 that rotates together with the reduction gear 10 attached to the reduction gear IO.
0's counterclockwise rotation is stopped. The lever 33 is biased clockwise, and the convex portion 30 of the wind stop lever 30
When a is fitted into the recess 29b of the stopper gear 29, it is engaged with the locking plate I3. By the way, the gear 7 meshes with the gear 4.0a of the one-rotation cam 40. As shown in FIG. 7, the one-rotation cam 40 has a notched gear 40b, a shutter, a mirror charge cam 40c, and a winding stop cam 4Of. When the one-rotation cam 40 rotates a predetermined amount in the counterclockwise direction, the notched gear 40
b meshes with the spur gear 51a of the aperture charge gear 51;
The bevel gear 51b provided on the upper part changes the direction of the rotation axis and rotates an aperture ring (not shown) to open the aperture of the lens. The cam 40c has a tip 44 of a charge reno-44 that rotates around the axis 24 and is biased counterclockwise. a is in contact with it. A bent portion 44b at the other end of the charge lever 44 is connected to a mirror (not shown) and a lever 6 connected to a shutter.
It is located at a position opposite to the tip portion 60b of 0. Further, as clearly shown in FIG. 7, the winding stop cam 40f has a recess 40g, rotates around the axis 23, and is biased clockwise by the leaf spring 42.
is engaged with the convex portion 41a. The width of the concave portion 40g is larger than the width of the convex portion 41a of the jersey winding lever 4I. The tip end 41b of the charge winding stopper lever 41 is a convex portion 60a provided at the tip end 60b of the lever 60.
is facing. The plate spring 42 and the plate spring 43 arranged opposite thereto constitute the second switch SW2. The convex portion 41a of the charge winding stopper lever 41 makes one rotation of the cam 4.
When it is stuck in the fourth part 40g of 0, the second switch S
W2 is turned off. Furthermore, as clearly shown in FIG. 5, the winding stop cam 40f of the one-rotation cam 40 is provided with a convex portion 40h at a location different from the four portions 40g. Although FIG. 5 shows a case in which the one-rotation cam 40 and the stopper gear 29 are arranged coaxially, if both members 40 and 29 are arranged at separate positions, Some kind of auxiliary means may be interposed between the winding stop lever 30 and the one-rotation cam 40. This convex portion 40h corresponds to the one-rotation cam 4
0 rotates counterclockwise to complete charging of the diaphragm, mirror, and shutter, and immediately before the convex portion 41a of the charging stopper lever 41 falls into the fourth part 40g of the one-turn cam 40, the charge stopper lever 30 is provided with a bent part 3
0f and rotates the winding stop lever 30 clockwise. However, the amount of clockwise rotation caused by this is very small and does not rotate to the point where the convex portion 30a of the winding stopper lever 30 and the four parts 29b of the winding stopper gear 29 are disengaged. Thereafter, as will be described later, the winding stop lever 41 rotates clockwise and drops to the fourth part 40g, the second switch SW2 is turned off, this is detected, the magnet 104 is energized, and the winding stop lever 30 and winding gear are turned off. 29. As shown in FIG. 1, the first reduction gear 5 has a second reduction gear at its lower part.
It has a small gear 5c, and the rotation of the first reduction gear 5 is transmitted to rewind gears 70, 7I, and 72. The rewinding gear 72 meshes with a rewinding switching planetary gear 73 that is pivotally supported on the tip of a carrier plate 74 that rotates about the same axis 25 as the rewinding gear 72 . This rewinding switching planetary gear 73 is a rewinding gear train 75
The gear 75a is disposed opposite to the gear 75a at the left end. The gear 75b at the right end of the rewind gear train 75 is the rewind fork gear 7.
6, and a rewinding fork 76b integrally formed therewith is engaged with the shaft center of the cartridge. When the rewind fork 76b rotates clockwise, the protrusion 76c of the rewind fork 76b rotates the shaft of the cartridge, thereby rewinding the film into the cartridge. As shown in FIG. 10, the roller 82 that presses the film in contact with the spool 14 is pivotally supported by a bent end portion 81c of a roller holder 81 that is rotatable around the axis 26. The roller holder 81 includes a protrusion 81b extending upward, and since the protrusion 81b is pushed leftward by the arm 83a of the torsion coil spring 83, the roller 8 receives a counterclockwise biasing force.
2 is brought into contact with the spool I4. A coil spring 85 is provided in the cylindrical portion 14b that stands upright on the top of the spool 14. The upper arm 85a of this spring 85 is connected to a bent end portion 84 of a roller release lever 84 that rotates about the same axis 26 as the roller holder 81. b
, 84c. Roller release lever 8
The bent portion 84a located near the axis P6 of the roller 4 charges the torsion coil spring 83 by clockwise rotation of the roller release lever 84. At this time, the arm 83a of the torsion coil spring 83 separates from the protrusion 81b of the roller boulder 81, so that the roller boulder 81 no longer receives any biasing force. As shown in FIGS. 5 and 6, a winding stop release lever +01 that rotates around the axis 27 is provided, and its bent end portion 101a is located opposite to the side surface 30d of the winding stopping lever 30. ing. Near the bent portion 101a,
A lever 102 that rotates about the axis 28 is provided, and the lever 102 is pivotally supported by the winding release lever +01. This lever +02 is biased counterclockwise by a torsion coil spring +10 provided around the axis P8, and its tip +02b comes into contact with the bent part Iota of the winding release lever +01, causing its rotation. is regulated. The other end 102a of the lever 102 comes into contact with a convex portion 29c of the stopper gear 29. Furthermore, a lever 103 that rotates around the same axis P7 as the wind stop release lever +01 is provided on the back side of the wind stop release lever +01. An adsorption piece 105 that is adsorbed to the magnet l-104 is attached to the tip bent portion 103b of this lever 103. This magnet 104
is a combination magnet having a permanent magnet, which usually attracts the attraction piece 105. On the other hand, McNet+
When a current is applied to 04, the force of attracting the attracting piece 105 disappears. This magnet I04 is attached to a vertical bent portion 120 of a plywood 120 fixed to a body (not shown).
It is fixed at a. A torsion coil spring 112 is mounted between the winding release lever 101 and the lever 103, and the bent portion 101b of the winding release lever +01 and the side surface 10 of the lever 103 are connected to each other.
3a are brought into contact with each other. Furthermore, the winding release lever +01 is biased to rotate clockwise by a torsion coil spring I11, which has one arm suspended over the bent portion 101c of the winding release lever 101 and the other arm resting on the base plate 120b. There is. In addition, the attraction force of magnet +04 is higher than that of torsion coil spring I11.
Therefore, when the attraction piece 105 is attracted to the magnet 104, the unwinding release lever 101 and the lever 103 cannot be rotated clockwise. On the other hand, when the magnet 104 is energized, the attraction force disappears and the torsion coil splinter +
11, unwind release lever +01 and lever 102゜1
03 integrally rotates clockwise around the axis P7, and when the bent portion (01a) of the winding stop release lever 101 comes into contact with the side surface 30d of the winding stopping lever 30, the winding stopping lever 30 is rotated counterclockwise. The operation can be rotated clockwise against the bias in the direction.The operation will be explained using the above configuration.The release signal energizes the release magnet (not shown) to narrow down the diaphragm, and the mirror h At this time, the lever 60 moves to the right in FIG. Then, the convex portion 41a of the piano winding lever 41 and the concave portion 40g of the one-rotation cam 40
The one-rotation cam 40 becomes rotatable (the state shown in FIG. 8). At this time, the second switch SW2 is turned on. After that, when the shutter (not shown) runs and completes the exposure, the motor 1 is energized;
gear 1b rotates clockwise. The reduction gear 2 rotates counterclockwise, and as shown in FIG. 4, the arm 4a of the spring 4 is pushed by the side surface 2c of the vertical wall 2b of the reduction gear 2, so the spring 4 also rotates counterclockwise. The load at this time is sufficiently smaller than the load that causes the spring 4 and the friction gear 3 to slip, so the friction gear 3
also rotates counterclockwise. The first reduction gear 5 then rotates clockwise. On the other hand, the protrusion 30 of the winding lever 30
a is fitted into the recess 29b of the stopper gear 29, and the tip 33b of the locking lever 33 is engaged with the locking plate 13, so the second reduction gear IO cannot rotate. In other words, the three planetary gears 6 cannot rotate. Therefore, the three planetary gears 6 revolve, and the carrier plate 8, gear 7, and shaft 9 integrally rotate clockwise, and one rotation cam 40 rotates.
rotates 24 times counterclockwise. Then, as shown in FIG. 9, the one-rotation cam 4
The 0 notch gear 40b meshes with the spur gear 51a of the aperture charge gear 51 to charge and release the aperture, and the cam 40c rotates the charge lever 44 clockwise, causing the charge lever 44 to rotate. Bending portion 44b
, move the tip 60b of the lever 60 to the right (left in Fig. 1).
Charge the mirror and shutter by pressing
Return the lever 60 to its original position. At this time, the charge stopper lever 41 tries to rotate clockwise due to the return of the lever 60, but as shown in FIG. Since the concave portions 4-0g of Of are located at different positions due to the rotation of the single-rotation cam 40, the single-rotation cam 40 can continue to rotate. At this time, the second switch SW2 is still in the on state. When the notched gear 40b is disengaged from the spur gear 5]a of the aperture charge gear 51, and the charge lever 41 is also returned to its original position and the aperture is completed and charging of the mirror and nyatter is completed, one end 4 of the four parts 40g of the one-rotation cam 40 is released.
At 0e, the charge winding stop lever 41 rotates clockwise, the convex portion 4]a fits into the concave portion 40g of the one-turn cam 40, and the second switch SW2 is turned off. Further, as shown in FIG. 5, just before the convex portion 41a fits into the concave portion 40g, the bent portion 30f of the wind stopper lever 30 is pushed by the convex portion 40h of the one-turn cam 40 that rotates counterclockwise. By performing this operation, the load remaining between the concave portion 29b of the film stopper gear 29 and the convex portion 30a of the film stopper lever 30 in the previous film winding process is released, and the film is stopped by the film stopper lever 30 with a light force. This made it possible to perform a release operation. Then, as shown in the timing chart of FIG. 11, when the second switch SW2 is turned off, a pulsed current is applied to the magnet 104, and the attraction force between the attraction piece 105 and the magnet 104 disappears. Then, as shown in FIG. 6, the winding stop release lever +01 is rotated clockwise due to the energization of the magnet +04, and the side surface 30d of the winding stopping lever 30 is rotated by the bent portion 101a.
is pressed, the winding stopper lever 30 is rotated clockwise, and the convex portion 30a and the recessed portion 29b of the winding stopper gear 29 are disengaged. Then, at the bent portion 30b of the winding stop lever 30, the lever 33
Push the tip 33a of the lever 33 and rotate the lever 33 counterclockwise to disengage the other end 33b of the lever 33 from the locking plate 13. Therefore, the second reduction gear 10 becomes rotatable. Eventually, film winding starts and the winding stop gear 29
rotates clockwise. However, at this time, the one-rotation cam 40 moves into the recess 4. Until the end portion 40cl of Og comes into contact with the convex portion 41a of the charge stopper lever 41, there is almost no load, so the planetary gear 6 continues to revolve. While the load is light, the convex portion 30a of the wind stopper lever 30 and the recess 29b of the wind stop gear 29 are disengaged. At this time, almost no force due to the reaction of the planetary gear mechanism is applied between the convex portion 30a of the wind stopper lever 30 and the recess 29b of the wind stop gear 29, and the wind stop lever 30 is rotated with a small force. It is possible to move it. The convex portion 4 of the jersey winding lever 41 is located at the end 40d of the concave portion 40g of the one-rotation cam 40. When Ia comes into contact (-this means that the rotary cam 40 has made exactly one revolution), the three planetary gears 6 begin to rotate counterclockwise, causing the second reduction gear IO to rotate counterclockwise. And spring 1
1 to rotate the spool drive gear I2 counterclockwise, the spool 14 is rotated counterclockwise, and the film is wound up. Furthermore, since the gear 10b of the second reduction gear IO and the large gear 20a of the reduction gear 20 are engaged with each other, the reduction gear 20 rotates clockwise. The carrier plate 22 rotates clockwise due to the frictional force between it and the reduction gear 20, and the planetary gear 21 attempts to engage with the large gear 23a of the reduction gear 23. On the other hand, the film wound up by the spool 14 rotates the sprocket 25 counterclockwise. The sprocket gear 24 and the code plate 26 also rotate counterclockwise at the same time. The small gear 23b of the reduction gear 23 that meshes with the sprocket gear 24 rotates clockwise. Here, when the film is wound around the spool 14, the planetary gear 21 meshes with the reduction gear 23 and the reduction gear 2
The film is faster than the speed of rotating sprocket 25.
Since the reduction ratio is set so that the speed at which the reduction gear 23 is rotated is faster through , the rotation of the motor is sprocket 25
It doesn't get across. Note that when the film is not wound around the spool 14, such as during initial loading, the planetary gear 21 meshes with the large gear 23a of the reduction gear 23, and the small gear 23b.
1 The sprocket 25 is rotated counterclockwise via the sprocket gear 24 to feed the film to the spool 14 side. By the way, as the sprocket 25 rotates counterclockwise, the stopper gear 29 rotates clockwise. As shown in FIG. 6, when the winding stop gear 29 rotates a predetermined amount, the protrusion 29c of the winding stop gear 29 comes into contact with the tip 102a of the lever 102 and pushes it, releasing the winding stop with /<-102. The lever 101 and the lever I03 are integrally rotated counterclockwise around the axis 27, and the adsorption piece +05 attached to the tip of the lever 103 is attached to the magnet 104 again.
Let it be absorbed by. Even after the attraction piece 105 is attracted to the magnet 104, the lever 10 is held by the convex portion 29c.
3 and the unwinding release lever +01, and the amount of movement is the same as that of both levers +03. The stroke is such that the lot continues to rotate counterclockwise while charging the torsion coil spring +12. Therefore, the adsorption piece is definitely +0
5 can be attracted to magnet +04. The winding gear 29 continues to rotate further, and the convex portion 29c touches the lever 10.
2, the lever +03 and the winding release lever +01 are rotated clockwise by the charged torsion coil spring +12, and the bent part 101b of the winding release lever +01 and the lever +03 are rotated clockwise by the charged torsion coil spring +12.
side surface 103a abuts and returns to the original state. Further, the wind stopper gear 29 rotates, and after one rotation, the wind stop lever 30 rotates counterclockwise, and the wind stop gear 29 rotates once.
The convex portion 30a of the wind stop lever 30 fits into the recess 29b of the wind stop gear 29, and the rotation of the wind stop gear 29 is stopped. In this way, one frame of film is fed. At this time, the first switch SWI is turned off, and the motor I is braked at this timing to complete the winding. By the way, when winding of one frame of the film is completed, a larger force is applied to the film between the recess 29b of the winding stop gear 29 and the winding stop lever 30. If this force remains applied, it is necessary to increase the force of the torsion coil spring 111 in order to rotate the winding lever 30 clockwise by the lever 101 by energizing the magnet I04. Furthermore, it is necessary to increase the adhesion force of the magnet 104 for the torsion coil spring II+ having a large force, which causes the problem that the volume of the magnet 104 becomes large, requiring space and increasing cost. Therefore, in order to be able to rotate the winding stopper lever 30 with as little force as possible, before energizing the magnet 104, the winding stopper lever 30 is slightly lifted using the rotation of the one-turn cam 40, as described above. By doing so, I relaxed my strength. Further, as the winding stop lever 30 rotates counterclockwise, the lever 33 biased clockwise rotates clockwise, and the tip 33b engages with the locking plate 13. This lever 33 is provided for the following reason. That is, when the stopper gear 29 is stopped, the brake is applied to the motor 1 immediately, but at this time the sprocket 2
5 is stopped immediately, but the spool 14 continues to rotate due to the inertia of the motor I due to gear backlash and the like. Then, the film tries to be further wound up by the spool 14, but since the sprocket 25 has already been stopped, an excessive force is applied to the film between the spool I4 and the sprocket 25. In order to avoid this, the spool 14 is stopped by the lever 33 via the locking plate I3. The winding operation is performed while the gear 1b of the motor 1 is rotating clockwise, and during this time, the second small gear 5c of the first reduction gear 5 and the rewinding gear 70°71.72 are also rotating. Since the rewinding gear 72 rotates counterclockwise, the carrier plate 7.l is rotated against the shaft center 2 due to friction with the rewinding gear 72.
Rotate counterclockwise 5 times. Therefore, the planetary gear 73
does not mesh with the gear 75a at the left end of the rewinding gear train 75, so that rotation is not transmitted to the rewinding fork gear 76. Also, while the spool 14 is rotating counterclockwise to wind up the film, the coil spring 85 wound around the cylindrical portion 14b at the top of the spool 14 attempts to rotate the roller release lever 84 clockwise, but the roller The release lever 84 is restricted so that it cannot be rotated counterclockwise beyond the position shown in FIG. 10, and the arm 85a of the coil pull 85 receives a force in the direction of winding and unwinding the coil spring 85, and unwinds the coil with a light torque. 85
and the cylindrical portion 14b of the spool I4. Incidentally, while the film is being advanced by one frame, the third switch SW3 is repeatedly turned on and off, as shown in the timing chart of FIG. In this embodiment, the third switch SW
3 is set to turn on eight times. Next, during initial loading of the film (blank feed)
The operation will be explained. As shown in the timing chart of Fig. 12, when the film is loaded and the back cover is closed, a switch (not shown) is turned on, and gear 1b of motor 1 is rotated in the direction opposite to the winding direction (counterclockwise). Motor l is energized to rotate. This energization time is very short (about 30 is), and is only enough to move the backlash of the gear. By this operation, the load applied to the concave portion 29b of the wind stop gear 29 and the convex portion 30a of the wind stop lever 30 can be relieved when winding is completed. Thereafter, the brake is applied to the motor 1, and at the same time, the magnet 104 is energized. Then, as described above, the bent portion 101a of the wind stop release lever 101 pushes the side surface 30d of the wind stop lever 30, causing the wind stop lever 30 to rotate clockwise and engage the wind stop gear 29 in the concave portion 29b. Convex portion 30a of stop lever 30
The first switch SW+ is turned on. Further, the lever 33 rotates counterclockwise, and the tip portion 33
b and the locking plate 13 are also disengaged. After braking the motor 1 for a certain period of time, the gear 1b of the motor 1 is then rotated clockwise. Then, since the film is not wound on the spool 14 again, the planetary gear 21 is shifted to the reduction gear 23.
By meshing with the large gear 23a of the sprocket 2
5 counterclockwise to feed the film to the spool 14 side. As the winding stop gear 29 rotates clockwise, one end of the suction piece 105 comes to be attracted to the machining net 104, but just before the protrusion 30a of the winding stop lever 30 fits into the recess 29b of the winding stop gear 29. magnet 10 again
4, the winding stop release lever 101 is rotated clockwise, and the protrusion 30a of the winding stop lever 30 is connected to the winding stop gear 29.
Make sure that it does not fit into the recess 29b. The timing at which the magnet 104 is energized is determined by the third switch SW3.
This is when it turns on for the 8th time. Since the convex portion 30a of the wind stop lever 30 does not fit into the recess 29b of the wind stop gear 29, the first switch SWI continues to be in the on state, and the motor I remains energized, so that the spool 14 , the sprocket 25 rotates counterclockwise, and the sprocket 25 rotates counterclockwise.
Start winding the film for each frame. Then, as in the previous frame, when the third switch SW3 is turned on for the eighth time, the magnet +04 is energized again. Then move on to winding the third frame. Similarly, when the third switch SW3 is turned on for the eighth time, magnet 1 is turned on.
04 to start winding the 4th frame. At this time, the magnet 104 is not energized at the above timing, the winding stop gear 29 rotates once, the protrusion 30a of the winding stop lever 30 fits into the recess 29b of the winding stop gear 29, and the first switch SW+ is turned off. The brake is applied to the motor l, and the initial load is completed. During this initial load, the film is wound around the spool 14. By the way, in this embodiment, the planetary gear mechanism is connected to the differential mechanism. However, it is also possible to use other differential mechanisms.The mechanisms shown in Figures 18 and 19 are examples of other differential mechanisms. In a modified example, the intermediate bevel gear 1
35 is located within the spur gear 132 and is pivotally supported by a pin 135a perpendicular to the shaft 132a thereof, and further meshes with the input helical gear 136 and the driven force gear 137. Further, the spur gear 132 meshes with the pinion gear 131. The driving force of a motor (not shown) is transmitted to the input shaft 13.
8 to the input helical gear 136. If the driving force of the motor 1 is transmitted to the input gear 136,
If the load acting on the output shaft 133 of the pinion gear 131 is heavier than the load on the shaft +39 of the driven helical gear 137, the intermediate helical gear +35 rotates, and the driven helical gear 137
rotates. On the other hand, if the load on the output shaft 133 is lighter than the load on the shaft 139 (J, then the intermediate bevel gear 135 is
139, and the spur gear 132 rotates. That is, if the spur gear 132 is kept stationary, the rotation of the human power shaft 138 causes the shaft 139 to rotate in the opposite direction and at the same speed as the input shaft 138, as indicated by the arrow in the figure. ill but,
When the spur gear 132 is rotated, if the input shaft +38 rotates in the same direction at a constant speed, the shaft 139 can be freely rotated in either the left or right direction, or can be held stationary. Furthermore, when the constituent members of the differential mechanism described above (planetary gear mechanism, see Figure 2) and the differential mechanism explained here correspond, the member numbers: 3b, +36.4, and 135.5 are obtained. 132.8 and 137 correspond to each other. In another modification of the differential mechanism shown in FIG. 19, two bevel gears 141 and 142 are used instead of the spur gear and pinion gear in the above modification. This operating mechanism is a well-known mechanism used in automobiles as a differential gear. To briefly explain the mechanism, the bevel gear 1/II provided on the input shaft 138 is connected to the bevel gear +4 held in the casing 149.
2 are interlocked. Furthermore, inside the casing 149, two pairs of bevel gears 136, 137. +4.4°144
is provided. That is, as shown in the figure, the bevel gears 137, 136, which are disposed to face each other and are pivotally supported by the respective output shafts 133, 139, are connected to the two bevel gears 137, 136, which are rotatably supported by the casing 149. It meshes with bevel gears 14-4 and 144. Input shaft 138
When the bevel gear 141 rotates, the bevel gear 142 held in the casing 149 rotates, so the output shaft 133,
139 usually rotate at the same speed. However, if the load acting on one output shaft 139 is heavier than the load on the other output shaft 133, the other output shaft 133 can rotate faster than the one output shaft 139. This is because, as is well known, when the automobile moves while turning, the other output shaft 133 rotates more than the one output shaft 139 to prevent the other wheel from slipping. A detailed explanation of film rewinding will be omitted here, but in this example, as a matter of course,
Film rewinding is possible. To explain the outline of film rewinding, when the film is stretched at the last frame, the rewinding gear 29 stops and the first switch SWI is kept in the on state. This state is measured by a built-in timer, and if the first switch SWI is not turned off even after the scheduled winding time has elapsed, the built-in control means determines that the film has finished. Then, the motor l is rotated in the film rewinding direction, and the rewinding gear 72 is rotated.
The rotation is transmitted to the cartridge and the film is rewound into the cartridge. Note that the convex portion 3 of the film stopper lever 30 is
0a does not fit into the recess 29b of the stopper gear 29 by a control means described later. Finally, a specific example of the control means in the film winding device of this embodiment will be explained. FIG. 13 is a circuit diagram using a microcomputer μG as a control means of the present invention. Each switch swt, sw2 . sw3 represents each of the switches SWI, SW2 . Corresponds to SW3. The respective switches SWI, SW2. One end of SW3 is a pull-up resistor r
are pulled up to the power supply line V via the input terminals IP+, lPt, and I of the microcomputer μC, respectively.
Connected to F5. Moreover, each switch SW 1 ,
The other ends of SW2 and SW3 are grounded. The switch SW5 is a switch that is turned on during multiple exposure. Switch SW6 is loaded with film, and
This switch is turned on when the camera back cover is closed, and turned off when there is no film loaded or the back cover is open. The switch SW7 is a switch that is turned on when rewinding at an intermediate frame. As is clear from FIG. 13, these switches SW4
．． SW5. SW6. One end of SW7 is a pull-up resistor r
are pulled up to the power supply line V via the microcomputer input terminals IP+, IP5 . IPe,
Connected to IF5. Moreover, each switch SW4. ．． S
W5. SW6. The other end of SW7 is grounded. At the same time, switches SW4, SW6. One end of SW7 is
Each interrupt terminal lNT of the microcomputer μC
1. Connected to INT2 and INT3. Therefore, switch SW4. SW6. When any of SW7 is turned on, each interrupt terminal lNTl, INT2 . INT3 falls, and in synchronization with the fall, the microcomputer μG starts an interrupt operation to be described later. The microcomputer μC is configured such that once an interrupt is started, it will not accept any interrupts until it is again permitted. BA is a power battery that supplies power to this circuit. Mg is a magnet and is numbered 104 in FIG. 1 and the like. This magnet Mg has one end connected to the power supply line V, and the other end connected to the collector of the NPN transistor Q. Further, a diode DI for preventing back electromotive force is connected in parallel to the magnet Mg. Transistor Q. The emitter of is grounded and the base is connected to two resistors R+
, connected to the connection point of R2. The other end of the resistor RI is connected to the output terminal OP of the microcomputer μC, and the other end of the resistor R2 is grounded. Therefore, when the microcomputer μG outputs a high-level signal from the output terminal OF+, the transistor Q becomes conductive, current flows through the magnet Mg, and the magnet Mg is activated. Conversely, when the microcomputer μC outputs a low-level signal from the output terminal OP, the transistor Q1 becomes non-conductive, no current flows through the magnet Mg, and the magnet Mg becomes inactive. 2 PNP) Run Sister Q 2. Q3. Two NPN l-run sisters Q4. Q5 and each back electromotive force prevention diode D2, D3. D- and Ds constitute a well-known motor control circuit, which controls forward/reverse rotation and stopping of the motor M (corresponding to motor 1 in FIG. 1) by control signals from the microcomputer μC. As is clear from FIG. 13, the bases of the respective PNP run sisters Q, , Q3 are connected to the output terminals OP4, . connected to OP3, each N
PN) The bases of the run sisters Q, , Q, are connected to the output terminals OP of the microcomputer μC through the respective resistors R3 and R4. Connected to OP2. The microcomputer μC has each output terminal OP2. Outputs a high level signal from OF3 and connects each output terminal OP
4. When a low level signal is output from OPs, each transistor Q2. Q5 conducts, and each transistor Q3 . Q becomes non-conductive. Therefore, from the power supply line V to PNP) Run sister Q2, NPN transistor Q5
A current flows to the motor M, and the motor M rotates in the forward direction. Conversely, the microcomputer μC outputs a low level signal from each output terminal OP2, OP3, and outputs a low level signal from each output terminal OP4. OPs
When a high level signal is output from Q, each transistor Q
2. Q, becomes non-conductive, and each transistor Q, ,Q,
, Q are conductive. Therefore, from power line V to PNP) Runsistor Q3,
(Motor M, NPN) Current flows to Run Sister Q4, and motor M reverses. And microcomputer-μC
is each output terminal OP 2. OF 3゜0 P 4,
When a low level signal is output from all of the OPs, each PNP transistor Q,,Q, becomes conductive and each NPN transistor Q,,Q5 becomes non-conductive. Alternatively, Micro Combister μC can be connected to each output terminal OP7. OPr,
OF4. When a high level signal is output from all of the OPs, each PNP transistor Q2. Q3 becomes non-conductive, and each NPN) run sister Q4. Q5 becomes conductive. Therefore, when signals of the same level are output from each output terminal OPt, OPs, OPt, OF2, the motor M is short-circuited and the motor M is braked. Next, the operation of this microcomputer μC will be explained. First, the operations during normal winding and auto return will be explained. When the photographer presses the release button (not shown),
The switch SW4 is turned on, the interrupt terminal lNTl of the microcomputer μC falls as described above, and the microcomputer μC operates according to the flowchart shown in FIG. First, as is well known, the microcomputer μC narrows down the aperture and
Raise a mirror (not shown). Then, the shutter front curtain is moved to expose the film. When a predetermined time (shutter seconds) has elapsed after the first shutter curtain was run, the microcomputer μC causes the second shutter curtain to run. After the above operation (step #1), that is, after a predetermined period of time has elapsed since the trailing curtain was run, the microcomputer μC proceeds to step #ll to charge the mirror, diaphragm, and shutter. Note that a detailed explanation of step #1 is omitted here because it is not directly related to the present invention. During the operation of step #1, switch SW
2 turns on. In step #11, the microcomputer μC outputs a high level signal from each output terminal OP, OP3, and outputs a high level signal from each output terminal OP4 . A low level signal is output from OP5 to cause the motor M to rotate forward. And the microcomputer μC has an aperture, a mirror,
Wait until the charging of the shutter is completed and the switch SW2 is turned off (step #12). The microcomputer μC determines the state of the switch SW2 based on the signal input to the input terminal IP2. When a high-level signal is input to the input terminal IP2, the microcomputer μC determines that the switch SW2 is turned off (switch SW4 is also turned off), and determines whether multiple exposure is being performed (step # 13), it is also determined whether or not film is loaded (step #14). When a low level signal is input to the input terminal ■P5, the microcomputer μC turns off the switch SW5 and
It is determined that multiple exposure has occurred, and the process proceeds to step #26, where the motor M is braked. Furthermore, if a high level signal is input to the input terminal IP8, the microcomputer μC determines that the switch SW6 is off and no film is inserted, and proceeds to step #26, where the motor M
apply the brakes. Therefore, this microcomputer μC does not allow winding to occur unless there is a film in the film. Note that when the back cover is open, the switch SW6 is turned off, so winding is not performed in this case as well. If there is no multiple exposure and the film is loaded,
The process advances to step #2I (winding routine) to wind the film. First, the microcomputer μC outputs high-level pulses at predetermined time intervals from the output terminal OP to activate the magnet Mg=47- (step #21). At the same time, the microcomputer μC resets and starts the built-in timer (step #22). When the magnet Mg is activated in step #21, as described above, the switch SWI is turned on and the driving force of the motor M is transmitted to the film winding side, thereby winding the film. After starting the timer in step #22, the microcomputer μC waits until winding for one frame is completed or until the timer measures a predetermined time (steps #23 and #24). Note that this predetermined time is slightly longer than the time required for winding one frame of film (for example, 3 seconds).
It is set to . When one frame of film is wound, the switch SWI is turned off as described above, and a high level signal is input to the input terminal IP of the microcomputer μC. When the microcomputer μC detects this, it proceeds to step #26 and connects each output terminal OP, , O
A high level signal is output from P5 to apply a brake to the motor M. Thereafter, the microcomputer μC enables interrupts (step #27) and then waits until the next interrupt is issued. The above is the operation of the microcomputer μC during normal winding (see FIG. 11). On the other hand, when the timer measures the above-mentioned predetermined time, the microcomputer μC outputs a high-level signal from each output terminal OP4°OF2 to apply a brake to the motor M, and waits until the rotation of the motor M completely stops. , proceed to the rewind routine (FIG. 15). It goes without saying that the fact that the timer has counted the predetermined time period means that the film has reached its last frame. FIG. 15 is a flowchart showing the rewind routine. When proceeding to the rewind routine, the microcomputer μC
outputs a low level signal from each output terminal OP2, OPs to reverse the motor M (step #4I).
). Then, as described above, rewinding of the film is started. As mentioned earlier, when the film is stretched, if the attraction piece 105 is attracted to the magnet +04, rewinding becomes impossible during rewinding, and the switch SWI is turned off. Therefore, during rewinding, the microcombi controller μC determines whether a high-level signal is input to the input terminal IP+ (step #42), and determines whether a high-level signal is input to the input terminal IP1. If there is, each output terminal OP,
, OP3 outputs a high-level signal to brake the motor M (step #49), and a high-level pulse is output from the output terminal OP to operate the magnet Mg (step #50). This makes it possible to continue rewinding, as described above, and the microcomputer μC again steps #
Proceed to 4I and resume rewinding. When the microcomputer μC determines that rewinding is completed in step #43, the microcomputer μC outputs each output terminal OP2. O
A high level signal is output from P, and a brake is applied to motor M (step #44). When all the films are wound into the cartridge, the state is the same as when no film is loaded, so the switch SW7 is turned off. Then, a high level signal is input to the input terminal IP7. When the microcomputer μC detects this, it determines that rewinding has been completed. When the brake is applied to the motor M in step #44 and the motor M completely stops, the microcomputer μC outputs each output terminal OP4. A high level signal is output from OP5 to cause motor M to rotate forward (step #45). after that,
The microcomputer μC waits until the switch SWI is turned off (step #46). switch SWI
is turned off and a high-level signal is input to the input terminal rP1, the microcomputer μC outputs each output terminal OF
,. After outputting a low level signal from OP 5, applying the brake to motor M (step #47), and allowing interrupts (
Step #48), wait until the next interrupt is issued. The above is an explanation of the operation of the microcomputer μC during auto-return. Note that the detection of the completion of rewinding in step #43 is based on the number of times the rewinding switch SW3 is turned on, as described above.
In other words, the number of times the input terminal IP3 falls is counted, and the number of times the input terminal IP3 falls (even when winding the switch SW
It may be determined that rewinding is completed when the number of times 3 is turned on is counted. Next, when the film does not reach the end and the photographer wants to rewind at an intermediate frame, the microcomputer μ
The operation of C will be explained. In this case, the photographer should press the switch SW.
7, the interrupt terminal INT3 of the microcomputer μC falls, and the microcomputer μC operates according to the flowchart shown in FIG. 16, as described above. First, the microcomputer μC outputs a low level signal from each output terminal OP t , OP 3 and outputs a low level signal from each output terminal OP 4 . Output a high level signal from OP5 and reverse the motor M (step #31
). After that, the backlash of the gear moves (approximately 3
0 msec), the microcomputer μC outputs a high level signal from the output terminal OP, and the magnet
Activate Mg (step #32). Then, the program proceeds to the rewind routine (FIG. 15) described above and performs rewind. The above is the operation of the micro combi coater μC when the photographer rewinds the film midway. Finally, the operation of the microcomputer μC during initial loading will be explained. When the film is loaded and the back cover is closed, the switch SW6 is turned on, the interrupt terminal INT2 falls, and the microcomputer μC operates according to the flowchart shown in FIG. 17, as described above. First, the microcomputer μC outputs each output terminal OP2. A low level signal is output from OP3, and each output terminal OP4. A high level signal is output from OP5 to reverse the motor M. (Step #61). After a period of time (approximately 30M seconds) long enough for the gear backlash to move, the microcomputer μC outputs each output terminal OP2. Outputs a high level signal from OP3 to brake motor M (step #62
). Next, the microcomputer μC outputs the output terminal O.
A high-level pulse is output from P, and the magnet Mg is activated (step #63). At this time, switch SW
I turns on. After that, the microcomputer μC opens each output terminal OP.
4. Output a low level signal from OP5 to rotate the motor M in the forward direction. Then, as described above, the sprocket 25 rotates and the switch SW3 is turned on and off repeatedly. The microcomputer μC counts the number of times the switch SW3 is turned on, and when the switch SW3 is turned on eight times, the microcomputer μC determines that one frame of film has been fed (step #65). Thereafter, the microcomputer μC determines whether four frames of film have been fed (step #66). Then, if four frames of film have not yet been fed, the microcomputer μC outputs a high-level pulse from the output terminal OP to activate the magnet Mg.
Make sure that the winding is not stopped (step #67). The microcomputer μC then returns to step #65 to continue the process. On the other hand, when four frames of film have been fed, the microcomputer μC waits until the switch SWI is turned off (step #68). switch SW
When I is turned off and a high level signal is input to the input terminal IP, the microcomputer μC switches the switch S
It is determined that WI is turned off, and each output terminal OP4. OP
5 outputs a high level signal to apply a brake to motor M (step #69). Thereafter, the microcomputer μC enables interrupts (step #70) and waits until the next interrupt is issued. The above is the operation of the microcomputer μC during initial loading (see FIG. 12). The microcomputer serving as the control means may also be used to control the exposure of the camera, as described above, or may be a microcomputer dedicated to film winding and rewinding). In this case, a switch is provided that is turned on when the shutter trailing curtain completes its travel and turned off when the shutter is charged, and when this switch is turned on, the microcomputer starts operating from step #11 in Figure 14. do. It goes without saying that it is also possible to configure the control means only by the hardware configuration of an electric circuit without using a microcomputer.

[Brief explanation of the drawing]

1-12 show a film winding/rewinding mechanism of a camera according to an embodiment of the present invention, FIG. 1 is a perspective view of the entire winding/rewinding mechanism, and FIG. 2 is a perspective view of a planetary gear mechanism. Figure 3 is a cross-sectional view of the planetary gear mechanism and the vicinity of the overload prevention friction part, Figure 4 is a plan view of the overload prevention friction part, and Figures 5-6 are a plan view of the vicinity of the film winding stop.
FIG. 5 is a plan view depicting a part of the charge winding mechanism just before charging is completed overlapping a part of the film winding mechanism in a state where film winding is completed, and FIG. 6 is a diagram showing a state in the middle of film winding. Figures 7 to 9 are plan views of the vicinity of the charging stop, where Figure 7 shows the charging completed state, Figure 8 shows the release completed state (before winding starts), Figure 9 shows the charging midway state, and Figure 10 shows the charging completed state. The figure is a plan view of the film pressing roller release part, Figures 11 and 12 are timing diagrams, Figure 11 is a diagram showing the normal winding of the film, and Figure 12 is a diagram showing the time of initial loading (during idle feeding). Fig. 13 is a circuit diagram showing the control means using a microcomputer, Figs. 14 to 17 are block diagrams showing the operation of the microcomputer, Fig. 14 shows the operation during normal winding and auto return, and Fig. 15 shows the operation during normal winding and auto return. 16 shows the operation when rewinding, FIG. 16 shows the operation when rewinding at an intermediate frame, FIG. 17 shows the operation during initial loading, and FIGS. 18 and 19 show each modification of the differential mechanism. FIG. ■... Drive motor, 5... First reduction gear, 6. Planetary gear, 7 Gear, 8. Carrier plate, 9. Shaft, 10.-
2nd reduction gear, 10a, internal gear, 12, spool drive gear, 13, locking plate, 14, spool, 25, sprocket, 29, first winding stop member (winding stop gear),
29b concave portion, 30 second winding stop member (winding stopper lever), 30a... protrusion, 30b... tip, 30f...
・Bending part, 33・Lever, 33b...Tip part, 40・
1 rotation cam, 40g, 4 parts, 40h, convex part, 41...
Charge winding stop lever, 4. Ia Convex portion, 101.102,103...Release means (winding stop release lever), +04...Holding means (magnet), SWI...
- First switch, SW2... detection means (second switch), F... film. Patent applicant Minolta Camera Co., Ltd. Agent
Person: Patent attorney, above-mentioned, and one other person: Amendment to procedure for false accusations (voluntary), Commissioner of the Japan Patent Office, July 13, 1988? 0 Name of the invention Film winding device 3 Relationship with the case of the person making the amendment Patent applicant A Principal office 2-chome Azuchi-cho, Higashi-ku, Osaka-shi, Osaka Prefecture; 30 Shiji Osaka Kokusai Building name (607) Representative of Minolta Camera Co., Ltd. 1) Hideo Shima 4 Agent 7, Contents of Amendment 1, The following parts of the description will be corrected. (I) Column for detailed description of the invention (1) Page 39, lines 7 to 8 r3b and 13
6,...8 and 137", r5b and 136.6
and 135.7 and 132.10 and 137". (2) On page 40, line 11, ``Can do. This is'' should be corrected to ``Can do. This is''. (3) On page 40, line 12, correct the statement "The other output shaft 133 is on one side" to "The other output shaft 133 is on one side." (4) On page 42, line 2, insert the following sentence after "The other end is grounded.""Switch SW4 is a switch that is turned on by pressing the release button (not shown)." (5) Page 43, line 4, "What is a microcomputer μC?"I'll correct it first. (6) On page 45, lines 4 to 5, the text "rPNP transistor Q2, NPN transistor 05" should be corrected to "PNP transistor Q7, motor M, NPN transistor Q5". (7) Page 45, line 10 “Each transistor Q , , Q ,', Q , J
[Correct the statement as [each transistor Q,,Q4J]. (8) Page 47, lines 19 to 20, “It is determined that the switch is off (switch SW4 is also off).”
Correct the statement to ``It is assumed that the device is turned off.'' (9) On page 48, line 4, replace the phrase "Switch SW5 is off," with [switch SW5
"W5 is on," I corrected. (10) On page 48, line 20, ``of spacing'' should be corrected to ``of width.'' (11) On page 51, lines 15 to 16, the statement "Microcomputer μC completes rewinding at step #43" will be corrected to "rewinding completes at step #43." (12) Page 52, 1st line [Switch 5W7J has been corrected to ``Switch 5W6J.'' (13) Page 52, 2nd line ``Input terminal IP7J has been corrected to ``Input terminal IPeJ.'' (14) In the first line of page 53, replace "Switch SW3 is on during rewinding" with "Switch SW3 is on during rewinding."
The switch SW3 is corrected. (15) On page 53, line 20, ``High-level signal'' should be corrected to ``High-level pulse.'' (16) On page 54, line 8, ``When the back cover is closed,'' was corrected to ``When the back cover is closed,'' first. (17) Page 55, line 7 to line 8 “Switch SW
3 repeats on and on. '' should now be corrected to ``Switch SW3 turns on and off repeatedly.'' (18) Page 56, line 4 to line 5 “Switch SW
I is turned off and the input terminal IF. First, correct the text "to input terminal IP 1" to "to input terminal IP 1."that's all

Claims (1)

[Claims] 1. A drive motor (1), a film winding means that is driven by the drive motor (1) and winds the film, and a first winding member (29) connected to the film winding means. ) and a second winding stopper (30) that engages with the first winding member (29) to prevent the operation of the film winding means; and winding of the film by the film winding means. Prior to operation, releasing means (
101, 103, 104), and the release means (1) driven by the motor (1).
01, 103, 104), relaxation mechanisms (30f, 40h) that operate to shallowly engage the second winding stopper (30) and the first winding stopper (29).
) A film winding device comprising: 2. The camera body includes a drive motor (1) that winds the film, a charging means that is driven by the motor (1) and charges the aperture, mirror, shutter, etc., and the motor (1).
a cam member (29) connected to the film winding means; and a cam member (29) connected to the film winding means.
and a winding stopper lever (30) that is biased along the direction of the film winding action and that engages with the cam member (29) to prevent the winding operation of the film winding means. a film winding mechanism; a detection means (SW2) for detecting the completion of the charging operation of the charging means; and a film winding mechanism for moving the film winding lever (30) in the winding release direction. a tiltable release lever means (101, 102, 103) biased against the biasing force; and a tiltable release lever means (101, 102,
103) at a predetermined position, the release lever means (101,
102103); and a holding means (104) adapted to release the holding of the position of the winding stopper lever, which is driven by the motor (1) and is configured to operate the release lever means (101, 102, 103). (30) and the cam member (29) is loosened.
) to slightly move in the release direction (3
0f, 40h).