JPS58145927A - Motor-driven winding and rewinding camera - Google Patents

Abstract

PURPOSE:To eliminate reverse winding and stretching of a film and decrease consumption of battery, by providing a specified planetary gear mechanism between a motor driving wheel group system and a rewinding wheel group system. CONSTITUTION:A planetary gear mechanism consisting of a sun gear 24 and planet gear 27 is provided between a driving wheel group system from a motor 1 to a constant rotation gear 13 and a rewinding wheel group system from a rewinding driven gear 28 to a rewinding fork 37. When the sun gear 24 rotates in the direction of rewinding, the gears 27 and 28 are engaged and rewinding is performed. When winding, the gear 24 reverses and engagement of gears 27 and 28 is released. Consequently, the rewinding wheel group system including the rewinding fork 37 is separated from the driving wheel group at the time of winding. Accordingly, reverse winding and stretching of a film are eliminated and consumption of a battery can be lessened.

Description

[Detailed description of the invention]

The present invention relates to an electric winding and rewinding camera that winds and rewinds a film in response to forward and reverse rotation of a motor. 1JLjl! ! ] In a winding/rewinding camera, if the rewinding operation is performed without manual switching of the mechanical mechanism, it is conceivable to wind the film when the motor checks and rewind the film when reversing. When winding is performed with a rewind fork engaged with the cartridge shaft, when the film is wound up by the sprocket, the rotational speed of the cartridge shaft, which rotates while unwinding the fed film, and the If the rotational speeds of the rewinding forks are the same, no problem will occur. However, Pat

[1
If the film is not properly stored, it may be loosely wound around the cartridge shaft, or it may be tightly wound, and the way it is wound is inconsistent. Further, when the cartridge shaft rotates once, the length of the film to be unwound changes as the film is fed. On the other hand, the film feeding length per unit time by the sprocket is always constant. Therefore, there are the following problems and problems. ■ If the rotational speed Vl of the cartridge shaft transmitted from the sprocket via the film is larger than the rotational speed v2 of the cartridge shaft transmitted from the rotationally driven rewinding fork (Vl>V2), the film in the cartridge is loosened. Eventually, the film will become stretched between sprocket (top) and sprocket (4), and the winding operation will not be possible unless the film is torn, resulting in a hole. 11,)24Ki1 and the opposite case (Vt < V2)
Pato: The loosening of the film inside the hole progresses, pushing the film against the inner wall of the hatron.And as the film continues to be fed, it finally becomes loose.
The Rohnay shaft begins to wind backwards from the rear end of the film, winding up the rear end. No. L - It is no longer possible to wind the film in the part reversely wound around the shaft. In order to eliminate the above-mentioned problems, it is sufficient to cut off the transmission of driving force between the cartridge shaft and the rewinding fork when winding the film. For example, in a rewinding train system including a rewinding fork,
It is possible to install a one-way clutch, but among the above problems, it is only effective if the rewinding wheel train system is configured so that V+ < v2 from the beginning of film winding to the end of all film winding. There are limitations in the mechanism configuration. In other words, when rewinding, it is necessary to either completely separate the sprocket from the drive system or to install a Norikutsu 3F mechanism to absorb the speed difference between v2 and vl, which increases the complexity of the mechanism and increases the risk of friction. Loss occurs. It is also conceivable that the rewinding fork should be provided so as to be able to be engaged with and detached from the cartridge shaft, and the two should be engaged only during rewinding. However, in this case, since the rewinding wheel train is rotated even during film winding, the problem of energy loss due to consumption of the power battery remains. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned disadvantages and problems, and it is an object of the present invention to provide an electric winding and rewinding camera that does not require reverse winding or tensioning of the film and does not cause energy loss. An object of the present invention is to provide an electric winding and rewinding camera that winds and rewinds a film in response to forward and reverse rotation of a motor, which includes a drive wheel train for reading the motor and a rewinding fork at the end thereof. An electric winding and rewinding camera characterized in that a planetary gear mechanism is provided between the rewinding wheel train and a planetary gear mechanism that connects the two wheel train systems to each other during rewinding and disconnects the two wheel train systems from each other during winding. achieved by. According to the present invention, the rewinding wheel train including the rewinding fork is separated from the driving wheel train when winding the film, thereby preventing problems such as reverse winding or stretching of the film during winding. It will be resolved. In other words, when the rewinding fork is provided so as to be removable from the cartridge shaft, energy loss during winding is suppressed as much as possible. Effects of the present invention other than f=, Be will be described in detail in the description of the embodiments. Hereinafter, the present invention will be explained in detail with reference to an illustrated embodiment. In FIGS. 1 and 2, a gear 3 fixed to an output shaft 2 of a motor 1, which stops rotating during film winding and reverses when rewinding, meshes with a gear 5 of a reduction gear train 4. The reduction gear train 4 consists of gears 5 to 12, with gear 1
2 is in mesh with the constant rotation gear 13. Axis 1 of gear 13
4, a set cam 15 and a wind end cam 16 are supported substantially in the same direction as each other. The set cam 15 performs the centering operation of the quick return mechanism (not shown). A cam follower 17 is in contact with the periphery of the set cam 15. This cam follower 17 is supported by the free end of a lever 19 which is pivotally connected to one end of a set lever 18. The lever 19 is given the habit of swinging counterclockwise around a support shaft 21 by a spring 20. When the gear 13 rotates in the winding direction indicated by the solid arrow, the set cam 15 also rotates in the same direction, causing the set lever 18 to rotate around the support shaft 22 via the cam follower 17 and lever 19. The other end of the set lever 18 is connected to the shutter via a link mechanism.
and a quick return mechanism to perform these cents. When the gear 13 rotates in the rewinding direction indicated by the dashed arrow, the center cam 15 also rotates in the same direction, swinging the lever 19 via the cam follower 17, but in this case, the set lever 18 does not swing. It looks like this. Note that if a one-way rotational clutch (not shown) is interposed between the shaft 14 and the set cam 15, the cam and the set lever 18 may be directly engaged. The wind end cam 16 is a cam that turns on and off the wind/dosino and chi5wvvlJ. The wind end switch SWw is, as shown in FIG.
the wind end switch SWI, which is linked to the trailing curtain movement of the shutter (not shown).
It is a parallel switch with The operation of this switch SVi/w during shooting is as follows: release → shutter travel → wind end switch SWw 1 on → wind end switch S
WwII is turned on → wind end switch SWw I is turned off → −wind end switch SWwll is turned off. A gear 23 meshes with the constant rotation gear I3. Hereinafter, the wheel train from the motor 1 to the constant rotation gear 13 (gear 23 in the embodiment) will be referred to as a drive wheel train system. A sun gear 24 meshes with the gear 23. sun gear 2
An arm 26 is rotatably provided on the shaft 25 of No. 4. A planetary gear 27 that meshes with the sun gear 24 is rotatably supported on the arm 26 . The planetary gear 27 meshes with the rewinding driven gear 28 when the sun gear 24 rotates in the rewinding direction indicated by the dashed arrow, as shown in FIG. 3(α). At this time, the arm 26 is in abutment with the stopper 29α. When the sun gear 24 rotates in the winding direction shown by the solid line arrow in FIG. The mesh is released. A boo 93 ( ) integrally coaxial with the rewinding driven gear 28 and the gear 3
A timing belt 33 is wound between the pulley 1 and a coaxial pulley 32. A rewind fork gear 34 meshes with the gear 31. As shown in FIG. 4, the rewinding fork gear 34 is rotatably supported on a rewinding fork shaft 35 that is the same type as the body. The rewinding fork gear 34 has a pair of engaging pawls 36.
．． 36 are provided. The engaging claw 36 has a claw portion 36α.
is formed. A rewinding fork 37 is rotatably inserted through the rewinding fork shaft 35. The rewinding fork 37 includes a phonic portion 38 that fits into a cartridge shaft (not shown) when rewinding the film, a circumferential groove 39, and an engagement hole 40.40 into which the F retaining pawl 36.36 fits. (only one of which is shown in FIG. 4) are provided, respectively. The rewinding fork 37 is connected to the engagement hole 4
0.40 is fitted with an engaging pawl 36, 36, and is rotatably supported on the rewinding fork shaft 35, but its rotation is restricted to a constant angle by the engaging pawl 36 and the engaging hole 40. has been done. Below, from the rewinding driven gear 28 to the rewinding fork 37
The gear train connected to is called the rewinding gear train system. A rewinding fork spring 41 made of a plate spring is provided on one end surface of the fork portion 38 with its base fixed, and abuts against the back portion 36h of the engaging pawl 36. Due to the action of the spring 41, the rewinding fork 37 and the rewinding fork gear 34 are urged toward each other in a direction in which the claw portion 36α abuts against the engagement edge 40α of the engagement hole 40 (see FIG. 4). ing. The claw portion 36α and the engagement edge portion 40α engage and disengage, and the operation thereof will be described later. The circumferential groove 39 of the rewinding fork 37 has a rewinding fork operating &amp;
42 arms are loosely fitted. The actuating plate 42 is a member that pushes down the rewinding fork 37, and is guided by a guide shaft 43 that is the same type as the body so that it can freely move upward without rotating. One end of a rewinding fork operating rod 44 is fixed to the operating plate 42 . As shown in FIG. 5, the rewinding fork operating rod 44 is supported by guide portions 46 and 47 provided on the body 45 so as to be vertically movable. A spring stopper 4 is attached to the operating rod 44.
The upward movement behavior is observed due to the elasticity of an extensible spring 49 interposed between the guide portion 8 and the guide portion 46. Therefore, the rewinding fork 37 is given a movement habit by the spring 49 in a direction in which the fork portion 38 is projected into the nozzle drawer storage chamber (not shown). In FIG. 5, a relief lever 51 is rotatably attached to the operating rod 44 by a stepped screw 50, and the lever is given a counterclockwise rotational habit by a spring 52. This habit is based on lever 10s51.
α is regulated by colliding with the operating rod 44. The elasticity of the spring 52 is released. When a downward force is applied to one end 51A of the lever 51,
The release lever 51 is set sufficiently large relative to the elasticity of the spring 49, and the release lever 51 starts rotating only after the downward movement of the operating rod 44 is restricted by the fixed member. A fixed contact 54 is fixed to the body 45 via an insulator 5:3 (see FIG. 7). One end 54α of the fixed contact has a bent end 55α of the movable contact 55.
are facing each other so that they can be brought into contact and separated. The movable contact 55 is guided by a guide groove 56 (see FIG. 7) formed in the body and fixed to a slidable contact seat 57. Between one end 55.6 of the movable contact 55 and a terminal 58 fixed to the body,
3, FIG. 5 and FIG. 7 show that a conductive tension spring 59 is hooked and gives the contact 55 a tendency to move in the direction of breaking contact with the fixed ψ point 54. Both of the above contacts are shown in a closed state. The fixed contact 54 and the movable contact 55 constitute a back cover switch SWH. In FIG. 5, reference numeral 60 indicates a back cover button 60 as a back cover opening/closing member, which is provided to be slidable in the vertical direction by a back cover force (not shown) and a body. The back cover button 60 has a protrusion 60α. 6 (Ib, 6 (LC, 60d) are provided. A stretchable back cover button pusher 61 is elastically loaded between the protrusion 608 and the recess 45a of the body, and the back cover button 60 is biased upward. Between the push spring 61 and the spring 59, the elasticity of the spring 61 is set to be much larger. The engagement piece 57α is engaged with the protrusion 60c.One end 51h of the relief lever 51 is located below the protrusion 60c so as to be able to engage with the protrusion. The back cover lock 62 is fitted with a long hole 62a of the lock 62.The back cover lock 62 has a lock 62b formed on the body 45, and a lock 62b that connects to the back cover claw 63 fixed to the back cover, which is not shown in FIG. Locking steps - 15b, 45c
1, in which a retaining portion 62c is formed that selectively engages with the
The back cover lock is slidable relative to the body and is also swingable around the protrusion 60d into which the elongated hole is fitted. One end 62d of the back cover lock 62 is engaged with the free end of a leaf spring 64 whose base end is firmly fitted into the recess 45d of the body 45, and the back cover lock 62 is rotated clockwise. Figure 3, which shows the movement, shows the camera back in a locked state, and at this time, the camera back lock 6
2 has its engaging portion 62c engaged with the locking stepped portion 45h under the action of the push spring 61. In addition, the movable contact 55
is pushed by the protrusion 606 to close the back cover switch 5WII, as shown in FIG. The rewinding fork operating rod 44 causes the rewinding fork 37 to protrude as shown in FIG. 9 by the elasticity of a spring 45). Rewinding fork: (7 is an actuating plate 42 integrated with the actuating rod 44, which is held in the lowered standby position when the actuating rod 44 is pushed down, as shown in FIG. 10). lowers the rewinding fork 37. Since the rewinding fork spring 41 resiliently abuts against the back portion 36h of the engaging pawl 36 that is loosely fitted into the engaging hole 40,
Due to the elasticity of the spring, the rewinding fork 37 is slightly rotated clockwise to position the engagement edge 40α below the claw portion 36α. Thereafter, when the pressing force on the operating rod 44 is released, the claw portion 36a and the engagement edge portion 40α engage with each other under the elastic force of the spring 49, and the rewinding fork 37 is held in the standby position. . This standby position is the position 1d in which the rewinding fork 37 is lowered so as not to engage with the shaft in the storage chamber. , the gear 66 fixed to the lower end of the hoisting shaft 65 meshes with the gear 67. Gear A'67 it,
It meshes with a gear 68 coaxially integral with the gear 23. As shown in FIGS. 2, 11, and 12, the hoisting shaft 65 includes a constant torque clutch mechanism 69, a sprue-free 2-flip mechanism 70, and a one-way connection mechanism 71. It is provided. The constant torque clutch mechanism 69 prevents the film from tearing and detects the end of the film. Upper clutch 72 integrally attached to the upper end of the hoisting shaft 65
The lower end surface 72α is formed in a radial chevron shape. A lower clutch 73 having an upper end surface 73α complementary to the lower end surface 72a is rotatably inserted and supported by the hoisting shaft 65. The clutch 1'73 is formed with a tooth portion 73a with a long tooth width that meshes with the intermediate gear 74, and a spring bearing portion 73h. Then, the lower clutch 73 is moved against the upper clutch 72 by the elasticity of the extensible pressure contact spring 75!
The chevron-shaped end faces of l- and in are engaged and pressed together. The pressure contact spring 75 is connected to the constant torque clutch mechanism 69,
It is commonly used in each configuration of the snowflake mechanism 70. A clutch switch SWK is disposed below the spring receiver portion 73h as a device that is activated when the clutch F'73 moves downward. A rewind button 76 corresponds to the clutch switch SWK, and when the rewind button 76 is pressed during rewinding, the switch SWK is turned on. 2, FIG. 11, and FIG. 12, a spool transmission washer 77, which is rotatably fitted into the shaft, is attached to a collar 65α (shown only in FIG. 12) of the winding shaft 65, and a press-contact spring 75
Spool Flixicon 1 Noso 7 Ya 7 receiving the elasticity of
8 and are pressed into contact with each other. The pressure contact spring 75. Washers 77 and 78 constitute a spool flick/-1 mechanism 70, which transmits the rotation of the winding shaft 65 to the spool, which will be described later, via frictional force. , the internal coupling mechanism 71 connects the winding shaft 65 and the spool 79.
The rotation of the hoisting shaft 65 during hoisting (
7) Mira Z This is a mechanism that transmits information to Fool 79. tin
The luer 9 is a cylindrical body made of rubber or a rubber-like material and has a high friction peripheral surface, and is substantially integral with the inner cylinder 8o. A driven member 81 is integrally and securely fitted into this inner cylinder 80 . As shown in FIGS. 11 and 14, the driven member 81 has a hole 81cL that fits into the winding shaft 65, and a pair of retaining portions 81b formed with a 1800 phase around this hole. , 81b and struts 81c, 81c], and claw support shafts 82α, 82α hanging down from the support, which are rotatably supported by the shafts and are relatively weak. One-way pawl 84 biased by springs 83, 83
, 84 are provided, respectively. As shown in FIG. 13, the engaging portion 84α of the one-way type 81
h, and receives the elasticity of the spring 83 and the retaining step portion 8
1d. On the other hand, a pair of transmission pieces 77a of the spool transmission washer 77
, 77a extends downward so as to be engageable with the engaging portion 84α. As shown in FIG. 14, when the upper shaft 65 rotates counterclockwise (winding direction), the transmission piece 77CI is rotated in the same direction via the spool friction mechanism 70.
It rotates and collides with the one-way pawl 84, and winds the spool 79 by engaging the engaging portion 84α and the engaging stepped portion 81d.
Rotate it in the opposite direction. When rewinding the film, as shown in FIG. 15, the winding shaft 65 rotates clockwise and the transmission piece 7
7α also rotates in the same direction, but in this case, the transmission piece 77
α collides with the back part 84b of the one-way claw 84 and the spring 8
Since the spool 79 is swung in the direction of escape against the elasticity of the spool 79, the spool 79 does not rotate. In addition, in FIG. 15, the one-way type back portion 84b and the transmission piece 77α are shown separated from each other for convenience of illustration. One-way connection mechanism 71
In the illustrated embodiment, the spool transmission washer 77,
Although it is composed of a driven member 81, a direction die 84, etc., it is sufficient to have a structure that transmits only the rotation of the winding shaft 65 to the spool 79 during film winding, and the structure of the illustrated embodiment is not applicable. It is not limited. Referring again to FIG. 2, a sprocket gear 811 fixed to a shaft 85a of a sprocket 85 meshes with the intermediate gear 74. A film feed detection tube 87, which is rotated by the side edge of the film, is rotatably inserted into and supported by the shaft 85a. The detection tooth 87 has a protrusion 87α on its peripheral surface. On the rotation trajectory of the protrusion 87α,
A 5-inch film feed signal switch is installed,
The 4° sprocket 85, which is turned on and off as the detection barrel 87 rotates when the film is fed, feeds the film (not shown) by one frame when the constant rotation gear 13 rotates one rotation. As such, the rotation from the constant rotation gear 13 is transmitted.Hereinafter, the rotation from the gear 23 to the tin U
The gear i connected to the shoe 1 gear 86 is called the hoisting gear train.
2. Also, the rotational speed ratio is set so that the film winding speed of the spool 79 is always higher than the film feeding speed of the sprocket 85, and the difference is absorbed by the spool friction mechanism 70. , the film is tightly wound onto a spool. At the time of rewinding, as mentioned above, the rotational speed of the spool washer 77 due to the winding wheel train is the same as the rotation speed of the spool 79 due to the film.
Since the rotational speed j1 is higher than the rotational speed j1 of the spool 79, and the driving force from the gear train is not transmitted to the spool 79, the film to be rewound is smoothly unwound from the spuffle. Furthermore, when the total number of rotations of the sprocket 85 required to feed the entire film is 71, and the total number of rotations of the rewinding nozzle 37 required to tightly wind the entire film is n2, Return fork rotation speed ratio Nl: N2 is N1/
/N2≧? The gear ratios of the winding wheel train system and the rewinding wheel train system are set so that ll/n2. The cartridge storage chamber is provided with a cartridge detection switch SWF (see FIG. 17 (α)) for detecting whether or not a cartridge is attached to the camera. In FIGS. 7 and 8, the position of the movable contact HIO is determined depending on whether or not a cartridge is loaded in the cartridge storage chamber. If the cartridge is not loaded, the movable contact HIO is moved away from the movable contact 55c as shown by the solid line. position and is loaded, the cartridge detection switch SWP
It is located at the position of the broken line where is closed. 1. As mentioned in ↓2, by configuring the back cover switch so-called B and the patrol non-detection switch SWF, the 16th
In addition to establishing the systems shown in FIGS. 17 and 18, the system described below can also be adopted. That is, the movable contact 100 is set to ground, the fixed contact 54 is set to sig, and the switch 5WFBJ is set to turn on only when there is a cartridge and the back cover is closed. Then, a circuit as shown in FIG. 17<b> is constructed. By doing this, the camera movement "play auto-load" in FIG. 16 is eliminated, and when the switch 5WFB is off, the system becomes exactly the same except that the play auto-wind is always performed. Also, it is connected to the sprocket 85, and when winding V, it adds one frame advance corresponding to one frame advance of the film, and when rewinding, it subtracts or changes the initial state (hereinafter referred to as [SJ)].
When the back cover is opened, the film counter is reset to [s, l], and the film counter is reset to [-8...].The details will be described later, but depending on the control signal, , a sound or a light emitting alarm mechanism (first
7≧i) is provided. Therefore, each operation will be explained. , Turn on the film loading power switch SWa. In FIG. 5, when the back cover button 60 is pressed down with fingers against the elasticity of the push spring 61, the protrusion 60d is pushed down by the back cover lock 6.
Push 2 downward. A plate spring 64 is attached to the back cover lock 62.
When the engaging part 62c and the locking stepped part 45h are pushed to the point where they disengage, the locking part 62c swings clockwise as shown in FIG. The engaging portion 62c engages with the locking step portion 45c. When the back cover lock 62 is pressed down, the protrusion 60d closes the elongated hole 6 as shown by the chain line.
2α, but when the pressing operation on the back cover button 60 is stopped, the button 60 is moved upward by the action of the push spring 61 and held at the position shown in FIG. As the back cover IJ knock 2 slides and swings, the engagement with the back cover pawl 63 begins to be released. - When the projection 60b moves as shown in FIG. 6 by pressing the back cover button 60, the movable contact 5, which was previously locked to the projection 60A and closed the back cover switch sWB,
5 follows the protrusion 60A due to the elasticity of the spring 59, as shown in FIG. Movement of the back cover switch SWB is prevented by the stopper portion 57b of the contact piece dust 57 abutting against the end surface of the guide portion 47. At this time, the bent end 55α of the movable contact 55 and the fixed contact 54
The one end 54α of is spaced apart from each other as shown in FIGS. 6 and 8. That is, the back cover switch swB is turned off. As the camera back opens, the film counter is reset to rSJ and the counter switch SW is reset.
o is turned off. When the projection 60c is moved by pressing the back cover button 60, one end 51b of the release lever 51 engages with the projection and pushes down the rewind fork operating rod 44 against the spring 49. Even when the operating rod 44 reaches the bottom dead center, the protrusion 60c moves further downward, but this movement, as shown in FIG.
Due to the swing of 51 to the relief lever, no transmission is made to the operating rod 44. At the timing when the release=-St starts swinging, the back cover pawl 63 is completely released from the back cover 2. When the rewinding fork operating rod 44 is pushed down, the operating plate 42 integrated therewith pushes the rewinding fork 37. When the operating rod 44 is in the raised position, the rewinding fork 37 protrudes as shown in FIG.
The claw portion 36α is recessed into the hole 40. In the state shown in FIG. 9, when the actuating plate 42 is pressed down, the rewinding fork 37 is lowered. And the above operating rod 4
Immediately before the bottom dead center of 4, the rewinding fork 37 is rotated clockwise by the elasticity of the rewinding fork spring 41.
As shown in FIG. 10, when the engaging edge portion 40a is positioned below the claw portion 36α, and then the finger is released from the back cover button/60, the projection 60d of the button moves to the back cover lock 6.
It rises by the amount it moves through the elongated hole 2. And protrusion 60G
The relief lever 51 and the release lever 51 continue to be in contact, and the operating rod 44 is
Holding the same position, the rewinding fork 37 and the engaging pawl;
16 is caused by the pressing force of the rewinding fork spring 41 (L
Stay engaged. That is, even if the rewinding fork portion is manually moved with the back cover open, the fork 37 and the engaging pawl 36 will be returned to the engaged position by the pressure force of the spring 41. In other words, the rewinding fork 37 is held at the standby position. Therefore, since the rewinding fork does not protrude from the bottom of the cartridge storage chamber, the cartridge can be taken in and out smoothly. Open the auto-start back cover (not shown), attach the cutorone, pull out the film to near the circumference of the spool 790, and close the back cover. (When the cartridge is attached, the movable contact 100 and the contact 55c come into contact, and the cartridge presence detection switch SWr (see FIG. 17 (α)) is closed. In FIG. 6, when the back cover is closed, The back cover claw 63 abuts one side edge 62d of the back cover lock 62, and the spring 64
oscillate counterclockwise against the This oscillation causes
The back cover lock 62 is disengaged from the locking step portion 45c and the engaging portion 62c, and is moved upward by the elasticity of the push spring 61. The upward movement is performed by the retaining part 62c and the locking step part 4.
At this time, as shown in FIG. 5, the locking claw 62h engages with the back cover claw 63 to lock and hold the back cover in the closed position. When the back cover button 60 is raised, the protrusion 60C also moves, but as described above, the rewind fork 37 is held at the lowered standby position. When the projection 60b moves due to the raising of the back cover button 60, the movable contact 55 is pushed up against the spring 59, and the bent end 55α of the contact and one end 54α of the fixed contact are separated, as shown in FIG. Contact the back cover switch 5WII (7th
(see figure) is closed. When the back cover switch SWo is closed, the
The output of NVI becomes high level (hereinafter referred to as "H"). At this time, if the film counter is "S" and the counter switch EMc is off, the output of the add/do circuit AND2 becomes H, and the output dEH of the OR circuit ORI becomes H. Since the output of the inverter INV7 is H, the output of the -J-nd circuit NANDl becomes a low level (hereinafter referred to as rLJ), the transistor Trl is turned on, and the IJ relay R
When LI turns on, its contact RLI-1 switches to the position shown by the broken line, and motor 1 moves in the hoisting direction (in the direction of the solid line arrow in Figure 2).
rotates forward. As the motor l rotates, the reduction gear IJ,1,
The driving wheel train system including the constant rotation gear 13 and the hoisting wheel train system connected thereto rotate in the direction of the solid line arrow (see FIG. 2), and the spool 79. Each sprocket 85 is rotated by tL to wind the film until the film counter reaches "1". When the film counter reaches "1" and the first frame of the film reaches the shooting position, the counter switch SWc is turned on, the output of the AND circuit AND2 becomes L, and the OR circuit O
The output of RI becomes L, the output of NAND circuit NANDI becomes H, transistor Tri is turned off, and relay RLI is turned off.
is turned off, the i-tar 1 is stopped, and film winding is stopped. Back cover switch 5wll75; When the camera back is closed, if some frame of the film is in the shooting position and the film counter is in the sub-position, the counter switch so-called 0 is on from the beginning, so motor 1 remains stopped. The film cannot be wound. The autoloading of the film is now complete, and all that is left to do is press the release button. Here, we will explain the operation of the drive force transmission system to the cartridge. It has already been mentioned that the rewinding fork 37 is held in the standby position when loading the cartridge.In FIG. Rotate in the direction of the solid line arrow. However, as shown in FIG. 28 is not rotated.In other words, by providing the planetary gear mechanism, the transmission of driving force to the rewinding wheel train system, which is completely unrelated to the hoisting operation, is cut off. Immediately after the start of operation, the planetary gear 27 is meshed with the rewinding driven gear 28,
Rotate this. However, the timing belt 33 is transmitted from the sun gear 24 to the rewinding driven gear 28 via the planetary gear 27. The rewinding fork gear 34 rotated by the gear 31 is held at the standby position because the claw portion 36α and the engagement stepped portion 40α rotate in the engagement direction. During film winding, the planetary gear 27 and the rewinding driven gear 2
8 engages for a very short time. Therefore, by providing two mechanisms, the planetary mechanism and the automatic rewinding fork protrusion mechanism, energy loss during film winding can be suppressed. If only a planetary mechanism is provided, the film will be driven to rotate during winding, resulting in an increase in load and a loss of energy. Even if winding is started with the rewinding fork 37 protruding due to an abnormal operation, at the initial stage of winding,
In the planetary gear 27, the rotation speed v3 rotated by the rewind driven gear 28 via the film-rewind fork 37 is smaller than the rotation speed v4 caused by the sun gear 24 (relative to the sun gear 24, the rewind driven gear 28 is (relatively stopped), the planetary gear mechanism operates normally, cutting off the drive to the rewinding wheel train and preventing the film from backwinding or stretching as described above. Autostart (failure) This is the operation when the film fails to lock onto the spool and winding is not performed. Similarly to the above, if there is no film feed signal even after time t1 has passed since the motor 1 starts rotating in the winding direction, in other words, if the film feed detection cylinder 87 (see Figure 2) does not rotate. , stop motor l. In other words, when the film feed signal switch sws is off, the inverter INV4
The output of becomes L, and the cartridge presence/absence detection switch SWF
is on and the AND circuit AND3 is outputting, so the output of the OR circuit OR2 becomes L. On the other hand, since the output of the OR circuit ORI is H and input to the AND circuit AND4, the pulses from the pulse generator PG pass through the AND circuit AND4 and are counted by the counter CA. Counters CA, CB, CC are time limit '1+'2+
This constitutes a timer with time t3, and the output of counter CA becomes H at time t1 after the start of counting. At this time, the switch 5WII on the back side is on and the output of the inverter INV1 is H, so the output of the AND circuit AND7 becomes H, and the alarm is turned on to issue a warning of a hoisting failure. This alarm store may be an alarm that warns with sound or an alarm that warns with light. When the camera back is opened according to the winding (autoload) failure alarm, the camera back switch S'wB is turned off, the output of the inverter INV1 becomes L, the output of the AND circuit AND7 becomes L, and the alarm AM is turned off. . Next, after reloading the film into the spool, the back cover is closed, and the auto start operation described above is returned to. When the autowind autoload is successful and the release button is pressed, the release switch S'%Vn is turned on, the output of AND1 becomes H, and the shutter is driven by the release switch RE. Then, the wind end switch SwW turns on when the trailing curtain finishes running. The inverter is turned on by turning on the wind end switch SWw.
The output of V3 becomes H, the output of OR circuit ORI becomes H1, and the output of NAND-1 becomes L, transistor Tri is turned on, relay RLI is turned on, and motor 1 is rotated in the winding direction. Then, the constant rotation cam 13 (see FIG. 2) rotates once to charge the shutter and quick return mechanism, and rotates the sprocket 85 to feed the film by one frame. This allows the wind end switch SVi
/w is turned off, and the output of inverter INV3 becomes L. At this time, since the counter switch SWO is on, the output of the AND circuit AND2 is generated, the output of the OR circuit ORI is L1, the output of the NAND circuit NANDI is H, the transistor Tri is turned off, and the motor 1 is stopped. . This autowind is repeated every time the release button is pressed until the end of the film is detected. Film End Detection When the film winding progresses and the load torque of the spool 79 increases until it becomes impossible to wind it any further, in other words, the load torque of the spool 79 increases to a point close to the torque that breaks the film, the lower clutch 73 resists the elasticity of the spring 75. , moves downward along the slope of the chevron-shaped opposing surfaces 72α and 73α with the upper clutch 72, and cuts off the driving force transmission between the film winding shaft 65 and the sprocket 85 (
(See Figures 2, 11, and 12). Figures 2 and 12
In the figure, when the lower clutch 73 moves, the clutch switch SWK is closed. When the clutch switch SWK is turned on, the output of the inverter INV5 becomes H, and the output of the OR circuit OR3 becomes H. Here, since the output of counter CC is L and the output of inverter INV6 is H,
The output of the NAND circuit NAND2 becomes L, and the output of the NAND circuit NAND2 becomes L.
Flip-flop FF formed by AND3°NAND4
is sent and its output becomes H. The H output of this flip-flop FF is output as a film end signal. Further, when the voltage of the power source E drops, the clutch mechanism cannot be operated and the motor 1 stops even if the wind end switch SWw is on. In this case, and also when the sprocket tears the film, a film end signal is output. That is, the film feed signal switch SWs is turned off, the output of the inverter INV4 becomes L, the hatron detection switch SWF is turned on, and the AND circuit AND3 outputs, so the OR circuit OR2 The output of counter CA becomes L,
CB, CC glue set input becomes L. Further, the output of the OR circuit ORI is H and input to the AND circuit AND4, and the counter switch SWo is on.
The output of inverter I NY2 is H. Therefore, the pulses from the pulse generator PG are sent to the AND circuit AND4,
It is counted by counter CB through AND5, and the output of counter CB becomes H after 92 hours from the start of counting.
Then, the output of the OR circuit OR3 becomes H. At this time, since the output of the counter CC is L and the output of the inverter INV6 is H, the output of the NAND circuit NAND2 becomes L, the flip-flop FF is set, and the film end signal is output. When the auto rewind film end signal is output, the inverter INV
7 becomes L, transistor Tr2 is turned off, relay RL2 is turned on, and its contact RL2-1 is turned off, thereby reversing the motor l in the rewinding direction. In FIG. 2, when the motor 1 rotates in the rewinding direction indicated by the dashed arrow, the constant rotation gear 13 rotates in the rewinding direction.
Rotate the sun gear 24 in the direction of the broken line. The rotation of the sun gear 24 causes the planetary gear 27 to rotate as shown in FIG. 3(a).
As shown in the figure, the rewind driven gear 28 is rotated to mesh with the rewinding driven gear 28, and then rotated. The rotation of the rewind driven gear 28 is controlled by the timing belt 33. Rewinding fork gear 34 via gear 31
is rotated in the rewinding direction shown by the dashed arrow (see FIGS. 2 and 10). In FIG. 10, the rewinding fork 37 has an operating rod 44. A frictional force is exerted by the actuating plate 42 biased by a spring 49 (see FIG. 5). Since this frictional force is larger than the pressing force by the rewinding fork spring 41, the rotation of the rewinding fork gear 340 causes the rewinding fork spring 41 to deflect. Therefore, the claw portion 36a and the engaging edge portion 40
When the rewind fork gear 34 rotates to an angle at which it disengages from α, the rewind fork 37 is projected by the actuating plate 42, which is biased by a spring 49, as shown in FIG. This protrusion of the rewinding fork 37 is caused by the podium 45
The operating sliding plate 42 whose movement is limited by
There is no mechanical force caused by the rewinding fork gear 34, and the driving force from the rewind fork gear 34 is transmitted through some wheel train system.
It is also transmitted to the winding shaft 65, causing the coaxial shaft 65 and sprocket 85 to rotate in the unwinding direction shown by the broken line arrow (see FIG. 2). The rotation of the winding shaft 65 in the unwinding direction/\ also rotates the constant torque clutch mechanism 69° and the spool friction mechanism 70;
Due to the presence of the one-way coupling mechanism 71 between them, the signal is not transmitted to the spool 79. That is, the 15th
As shown in the figure, when the winding shaft 65 rotates in the unwinding direction,
The transmission piece 7.7α of the transmission washer 77 also rotates in the same direction, but since the one-way pawl 84 swings inwardly around the pawl skin shaft 82α, the rotation of the winding shaft does not affect the spool. Not communicated. In this state, the rotation of the motor 1 rotates the sprocket 85 to feed the film in the rewinding direction, and also causes the rewind fork 37 to rotate the cassette shaft to rewind and store the film in the cassette. At this time, the spool 79 rotates following the film fed by the sprocket 85. Furthermore, since a one-way mechanism is provided between the constant rotation gear 13 and the set cam 15 (see FIG. 2), the rotation of the constant rotation gear 13 in the rewinding direction is controlled by the shutter and quick return mechanism (set system). Not communicated. When the total number of rotations is n2, the rotation number ratio N1:N
Since the gear ratio is set so that 2 is N1/J□≧n 1/n□, in the first half of the film rewinding operation, the amount of film feed per unit time by the sprocket 85 is the same as that of the rewinding fork. 37, the film fed by the sprocket is slowly wound around the cartridge shaft. and,
The film gradually becomes thicker (c) In the latter half of the rewinding operation, the amount of film taken up by the Rhone shaft becomes larger than the film feed amount by the sprocket 85, so as the film becomes thicker, it starts tightening the film. Almost at the same time as the sprocket finishes feeding the entire film, the tightly wound film is rewound and stored in the cartridge. Midway rewinding operation This is an operation when rewinding the film before the film reaches the end. In this case, press the rewind button/76 (see Figure 2).
Press to turn on clutch switch SWK. When clutch switch SWK is turned on, inverter IN'
The output of v5 becomes H1, and the output of OR circuit OR3 becomes H, and at this time, the output of color/CC is output, and the inverter I NV6
Since the output of NAND circuit NAND2 is H, the output of NAND circuit NAND2 is L, and the output of NAND circuit NAND3 is H1 inverter IN.
The output of V7 becomes L and the transistor Tr2゜relay R
L2 turns on and rotates the motor 1 in the rewinding direction. The rewinding operation after the motor 1 starts reverse rotation is the same as the auto-rewinding operation described above. As described above, one clutch switch SWK is used for both auto rewind and midway rewind. Auto rewind end The entire film is stored in the cartridge with the auto rewind operation. At this time, the output of the NAND circuit NAND3 is H
Then, a pulse is applied from the pulse generator PG to the counter CC via the AND circuit AND6, the film feed signal switch SWs is turned off and the output of the inverter INV4 becomes L, and the cartridge presence/absence detection switch S%VF is turned on and the AND circuit is activated. Since the output of AND3 is L, the OR circuit OR
The output of 2 becomes L, and the counter CC becomes an AND circuit AND.
Count the input pulses from 6. The output of the counter CC becomes H after 63 hours from the start of counting, and the inverter IN'
The output of V6 becomes L. Then, the output of the NAND circuit NAND2 becomes H, the 7-lip-flop FF is reset, the output of the inverter INV7 becomes H, the transistor Tr2 is turned off, the relay RL2 is turned off, and the motor 1 is temporarily stopped. When the output of inverter INV7 becomes H, the back cover switch SWB is turned on and the counter switch S'%
Since lvo is off and the output of the AND circuit AND2 is H and the output of the OR circuit ORI is H, the NAND circuit NAN
The output of D1 becomes L, transistor Tri is turned on, relay RLI is turned on, and motor 1 rotates forward. The forward rotation of the motor 1 winds the film and sets the shutter and quick return mechanism to the standby position. When the film counter changes from "S" to 1 during film winding and the counter switch 0 is turned on, the AND circuit AN
The output of D2 becomes L, the output of NAND circuit NANDI becomes H, transistor Tr1 and relay RLI are turned off, and motor 1 is stopped. Also, when the film is rewound, the film counter changes to "S" and the counter switch becomes 0.
When OFF, the output of the AND circuit AND2 becomes H and the output of the OR circuit ORI becomes H, so the pulse generator PG
The pulse from the counter C passes through the AND circuit AND4.
A4C is human powered. Here, the cartridge presence/absence detection switch SWF is on and the AND circuit AND3 is outputting.
The feed signal switch Sws is off and the output of the OR circuit OR2 is L. Therefore, the counter CA counts the input pulses and after t1 time (before the counter switch SWO is turned on), the output goes to H, and since the camera back switch SWe is on, the output of the AND circuit AND7 goes to H, which causes an alarm. The store announces that the film has finished rewinding. In other words, the "auto start" and "auto load failure" systems are used as an alarm system for the end of film rewinding. In this example, the back cover is opened when the alarm store's alarm is activated, making it easy to use. When the back cover button 60 is pressed by recognizing the alarm, the back cover switch swB is opened and the alarm is stopped, as shown in FIG. In conjunction with the pressing of the back cover button 60, the back cover opens and the operating rod 442 operates the operating plate 4.
2, the rewinding fork 37 is lowered to the standby position shown in FIG. 10 and held at that position. Next, remove the cartridge from the cartridge storage chamber. At this time, since the rewinding fork 37 is lowered to the standby position and held there, it is extremely easy to take out the cartridge. In this camera, it is possible to perform a pseudo photographing operation, that is, the same operation as when film is loaded, even without loading film. In the 17th i, even if there is no patrone (film),
When the camera back is opened and the release button is pressed to turn on the wind end switch SWw I, the motor I rotates forward. The conditional charge at this time is that the camera back switch SWa is off.
Wind end switch SWwI is on and clutch switch SWK is off. Then, when the wind end switch SWw I is turned off, this free motor 1
rotation stops. The conditions at this time are back cover switch S.
Wa is off, wind end switch SWw I is off, and clutch switch SWK is off. On the other hand, when the back cover is closed, the back cover switch S'%vs is turned off, the counter switch SWo is turned off, and the clutch switch S
Under the condition that WK is off, motor 1 rotates forward, and under the conditions that counter switch SWo is on, wind end switch 1 is off, and clutch switch Swk is off, motor 1 is stopped, and the play autoload ends. If the cartridge is not loaded and the cartridge presence detection switch swP is off, the feed signal switch SW
The pulse caused by s (pulse that occurs only during film feeding) is sent to the OR circuit OR2 through the inverter INV4.
Instead, the pulses generated by the pulse generator PG regardless of film feeding are input to the OR circuit OR2 via the AND circuit AND3, so that the motor 1 is controlled and the alarm function is controlled in the same way as when loading the cartridge. The following operations are performed, and winding and rewinding operations are performed.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the block fork mechanism showing the configuration of the camera of the present invention, Fig. 5 is a front view showing the camera back lock mechanism and its surroundings, Fig. 6 is a perspective view showing the arrangement of the same; 1
Figure 0 is an operational view of the same as above, and is a perspective view showing the standby position;
Figure 11 shows a constant torque clutch mechanism, a spool friction mechanism, and a spool friction mechanism provided between the film winding shaft and the spool.
An exploded perspective view showing the one-way connection mechanism, FIG.
Figure 4 is a plan view of the same film when it is being wound up, Figure 15 is a plan view of the same film being unwinded, Figure 16 is a flowchart showing motor control, Figure 17 (α) is a circuit diagram of the same thing,
FIG. 17(b) is a circuit diagram showing a modified example of the above, FIG. 18 is a time chart of the same, and FIG. 19 is a sprocket. It is a top view which shows a film and a return fork. -ri, 65 - hoisting shaft, 69... constant torque clutch mechanism, 70... spool friction, n mechanism, 71...
One-way connection mechanism, 79... Spool, F... Film, swP... Patrone presence/absence detection switch, swB
...back cover switch, swc...counter switch,
SWw...wind end switch, swi...feeding signal switch, SwK...clutch switch. Ivy 6 map city 9 map preliminary map 19 procedural amendment (voluntary) l Indication of the incident Showa, 7th year % Total Application No. 29575 2 Lou's name 'Kl Utsuho Volume 1 Voluntary Camera 3 Person making the amendment, □O, )O1 series Marine license applicant 1
1- Location: 3-6, 1-H, Nakamagome, 1H-ku, Tokyo University Name (674) 1-no-ko Co., Ltd. -4
Agent Address: 156-11 Mi Address: 2-6-28 Sakuragaoka, Setagaya-ku, Tokyo
Telephone No. 03 (42B) 5106 6 Contents of amendment (1) r 73a in page 14, line 16 of the specification -
1f r 73bJ and r 73b J to r73cJ. (211m 15th Jifg 2 rows + 1'l) r731:
+J f r730J K amended. (3) On page 29, line 9 of the same page, the back of “Wachi,” next to “Wachi.” "Lid switch SWB is on" is added. (at "OR circuit 01't" in page 29, line 13 of the same
Change IJ to F inverter NV8J. (Next to "AND4" in the 16th line of page 29 of the same 51, add "and OR circuit OR6J." (61) Next to "(7) rLT" in the second line of 55m of the same) K "Ah.
D, when the output of the AND circuit AND8 is L, add ". (7'1 rOR2J in the third line of page 66 of the same page is r O
R2,OR5゜OR4''. (81, page 66, line 4, “OR circuit ORI J [
Changed to inverter NV, J. (91, page 38, lines 12 and 13, “Patrone......delete AND3 J and [AND circuit A
Add ND8 J. 1ll) Replace [0R24 with “0” in line 14 of the 66th
(Renamed to R44) b1. . "OR circuit 01 (1)" (r [changed to inverter NVaJ 0IIz from line 17 to raw silk line 18 of the 59th Jail) "Off de j ff off, Mk blood switch 1. SW, is on 1゛''. u, 9 times + 3144 turns on w 10h and in the 12th line (7) f 0R2-l(1st next 1I(1+○R5J
y will each join. 01+ 1eIt m 4th line 5g15th line end% V(
Add the following sentence. 1, Figure 1.7 (al k), SWA H
Initial reset 1. -1 + pH +1.1 Figure 17 in the drawing (Alt replace the attached one

Claims (1)

[Claims] (vii) An electric winding and rewinding camera that winds and rewinds film in response to forward and reverse rotation of the motor, includes a drive wheel train system that includes a motor, and a rewind wheel train system that has a rewind fork at the end. During rewinding, the two wheel train systems are connected to each other,
An electric winding and rewinding camera, characterized in that it is provided with a planetary gear mechanism that separates the two wheel train systems at the time of winding.