JP2589180Y2 - Motor support structure inside the spool of camera - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support for a motor disposed in a spool and a lead wire processing structure.

[0002]

2. Description of the Related Art In a conventional camera, one motor is disposed in a spool, and rotation of the motor is selectively performed by a shutter / mirror charging mechanism, a film winding mechanism, and a film rewinding mechanism. In some cases, switching is transmitted and one motor performs the above three operations.

Since the operation of the shutter / mirror charging mechanism is higher in load than the film winding mechanism and the film rewinding mechanism, if these operations are performed by the same motor, the load on the motor is large. Therefore, a high-load motor for operating the shutter / mirror charging mechanism and a low-load motor for operating the film winding mechanism and the film rewinding mechanism are separately prepared and operated. Conceivable.

In the case of employing this configuration, a high-load motor for operating the shutter / mirror charging mechanism is installed in a spool which can take up a relatively large space, in view of the arrangement of the entire camera mechanism. Preferably, the size of the camera is reduced.

The problem here is the processing of the lead wires of the motor in the spool. In order to install a shutter / mirror charge motor in the spool, a shutter / mirror charge drive mechanism is configured by projecting the rotation shaft of the motor on the side opposite to the spool drive mechanism normally provided at the bottom of the camera body, that is, at the top of the spool. This is an efficient and general configuration. However, according to this configuration, the lead wire of the motor is drawn out from the lower portion of the spool, and the lead wire may interfere with a gear portion provided on the spool or a gear train of the spool drive mechanism.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems relating to the conventional camera body structure, and has been made to eliminate the inconvenience that the lead wire interferes with the rotation of the spool, and to stabilize the workability when assembling the motor. It is an object of the present invention to provide a motor support structure capable of performing the above-described steps.

[0007]

SUMMARY OF THE INVENTION The present invention is directed to a camera having a rotatable spool and a motor located in the spool, wherein the spool has an opening at one end and the other end, and the motor is connected to one end of the motor. Portion has a rotation shaft to be projected from the opening of the one end of the spool, a positioning projection located at the shaft of the spool at the other end, and a pair of projections to be projected from the opening of the other end of the spool. And a main plate for rotatably supporting the other end of the spool and positioning and supporting the other end of the motor, the main plate being provided with the positioning protrusion of the motor. And a pair of lead wire guide holes for guiding the pair of lead wires out of the spool.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
In the present embodiment, the present invention is applied to a single-lens reflex camera of a type that starts photometry when the shutter button is half-pressed and releases the shutter when fully pressed.

As shown in FIG. 3, the grip section 11 provided on the camera body 12 has a grip rubber 14 mounted on the front and a side cover 13 provided on the rear side. Behind the grip 11, a rear lid 15 is provided.
Are pivotally supported by a rotation support shaft 15a. A spool 17 capable of accommodating a charging motor 18 therein is rotatably provided inside the camera grip 11, and a film motor 19, a strobe circuit 20, a strobe circuit board 21, a sprocket 22, a main capacitor 23 and a battery 24 are arranged. Reference numeral 16 in the figure denotes a front plate screwed to the camera body 12.

Referring to FIG. 11, the peripheral portion of the spool 17 will be described in detail. A pinion gear 25 attached to a rotating shaft 18a protruding from one end of the charge motor 18 has
The gears 27 and 28 form a gear 26 that forms a reduction gear train 29. The rotation support shaft 61 supports the aperture reset lever 34 at one end thereof and the cam gear 32 at multiple ends so as to be rotatable.
Is engaged.

The cam gear 32 includes a shutter cam 30.
And the mirror cam 31 are coaxially integrated and arranged so as to be located at the center of the mirror charge lever 33.
As shown in FIG. 5, the shutter cam 30 has an involute cam surface 3 whose diameter increases as it rotates.
0a, and a back surface portion 30b. The mirror cam 31 has a first rotating cam surface 31a having the largest diameter, a second rotating cam surface 31b having a smaller diameter than the cam surface 31a, and a back surface portion 31c.

The mirror charge lever 33 is connected to the pivot 6
0, it is rotatably supported, and is urged by a coil spring 35 to rotate counterclockwise in the figure. At the center of the mirror charge lever 33, a roller pin 33a and an interlocking pin 88 are provided at a predetermined interval. The mirror charge lever 33 rotates about the rotation support shaft 60 when the roller pin 33a is pressed and moved by the mirror cam 31 that rotates counterclockwise.

The aperture reset lever 34 is urged to rotate counterclockwise in FIG. 5 by spring means (not shown).
It is in contact with the link pin 88. Aperture reset lever 34
Is pressed by an interlocking pin 88 which moves in the same direction as the mirror charge lever 33 rotates, and is rotated clockwise about the rotation support shaft 61, and the aperture latch lever 87 (FIGS. 5 and 8). Is pressed to reset (open) the aperture of the taking lens. In FIG. 5, the aperture latch lever 87 indicated by a two-dot chain line indicates a position in the aperture-down state after release, and the aperture latch lever 87 indicated by a solid line indicates a state where the aperture is reset.

The mirror charge lever 33 presses the mirror interlock lever 90 with its tip (left end in FIG. 5). In the drawing, a mirror interlocking lever 90 indicated by a solid line
Indicates a position in a mirror down state after completion of a mirror charge, and a mirror interlocking lever 90 indicated by a two-dot chain line
This shows the mirror up state after release.

The switch board 36a is coaxial with the pivot 60.
Is provided. The switch board 36a includes the contacts 113b and 113c that are not insulated from each other, and the contact 1 that is insulated from these contacts 113b and 113c.
13a, and the interlocking projection 11 further protruded downward.
Two. A bifurcated interlocking arm 115 for gripping and interlocking the interlocking projection 112 is formed at the turning base of the mirror charge lever 33. On the camera body 12 side, the contacts 113a, 11
Bifurcated contact brush 1 capable of sliding contact with 3b and 113c
The switch lever 36b having 14 is fixed.
The switch board 36a and the switch lever 36b constitute a one-turn switch 37 for detecting that the cam gear 32 has made one turn.

The shutter charge lever 38 is rotatably supported by a rotation support shaft 89, and is urged to rotate counterclockwise in FIG. 5 by a spring means (not shown). The shutter charge lever 38 has a charge pin 3
8a and a roller pin 38b at the center. The shutter charge lever 38 is provided with a roller pin 38b.
Is brought into contact with the shutter cam 30 of the cam gear 32, and the roller pin 38b is pressed and moved by the shutter cam 30 rotating counterclockwise in FIG. Is rotated.
Reference numeral 91 in the drawing denotes a shutter-side charge lever that charges the shutter by being pushed and moved by the charge pin 38a that moves in the same direction when the shutter charge lever 38 rotates clockwise.

In the vicinity of the film motor 19, a sun gear 41 and a planetary lever 42, which are coaxially and relatively rotatably supported by a rotating shaft 116, are arranged. The planetary lever 42 has a planetary gear 43 that meshes with the small-diameter gear 41 a of the sun gear 41. The sun gear 41 meshes with a gear 40 that meshes with a pinion gear 39 attached to a rotation shaft of the film motor 19, and rotation from the film motor 19 is transmitted through the gear 40.

Adjacent to the planetary gear 43, gears 44, 4
Rewind reduction gear train 49 consisting of 5, 46, 47 and 48
Is arranged. The planetary gear 43 is a film motor 1
9, when it is rotated clockwise together with the planetary lever 42 in the clockwise direction, it meshes with the adjacent gear 44 and rotates its rotation through the rewind reduction gear train 49 and the through shaft 50, the through shaft gear 51 and the rewind. The signal is transmitted to the gear 52, and the rewind fork 53 is rotated in the film rewind direction.

A large-diameter gear 56 and a small-diameter gear 55, which are coaxially integrated, are rotatably supported by a rotating shaft 121 adjacent to the planetary gear 43. The small-diameter gear 55 meshes with a hoisting gear 54 provided on the outer periphery of the end of the spool 17.
When the planetary gear 43 is rotated counterclockwise in the drawing together with the planetary lever 42 by the rotation based on the film motor 19, the planetary gear 43 meshes with the large-diameter gear 56 and rotates the rotation via the small-diameter gear 55. To rotate the spool 17 in the film winding direction.

The sprocket 2 is arranged adjacent to the spool 17.
2 are provided. The sprocket 22 is engaged with the perforations 117 of the film F, and is rotated as the film F is wound. A rotating plate 57 is attached to the lower end of the sprocket 22, and the winding amount of the film F is detected based on the number of rotations of the rotating plate 57 being detected by the photo interrupter 58.

FIG. 1 is a view of FIG. 3 viewed from the direction of arrow A. An upper main plate 123 is fixed to an upper portion of the camera body 12 by fixing screws 59. This upper main plate 123
1 has a rotation support shaft 118 which rotatably supports the gear 26 of FIG.
Are fixed by set screws 62. Upper parent board 123
The fitting protrusions 63 of the charge motor 18 are fitted and supported by the engagement positioning holes 64 and one end of the spool 17 provided coaxially with the motor 18 inside the charge motor 18. It has a rotation supporting step 65 for rotatably supporting the same.

The other end of the spool 17 is provided with a rotation support projection 69 having a hoisting gear 54 on its outer periphery. The rotation support projection 69 has an opening 69a for projecting a lead wire 72 provided at the other end of the charge motor 18 outward. The other end of the charge motor 18 (opposite to the pinion gear 25) has a motor bracket 7
8 (FIG. 2) are provided. The motor bracket portion 78 is provided with a lead wire guide portion 6 provided so as to protrude outward.
7 and an oval positioning protrusion 66 further protruding from the lead wire guide portion 67. A pair of lead wire projecting holes 80 for projecting the lead wires 72 of the charge motor 18 outward are formed on the left and right of the lead wire guide 67 and the positioning protrusion 66. The motor bracket portion 78 further has a lead wire guide groove 79 formed from the pair of lead wire projecting holes 80 toward the lead wire guide portion 67.

A lower main plate 68 is fixed below the camera main body 12 with a set screw 75, and a lower stop plate 74 is fixed below the lower main plate 68 with a set screw 73. The lower main plate 68 has an insertion recess 68 for rotatably inserting the rotation support projection 69 of the spool 17.
b, a support projection 68a inserted into the opening 69a of the rotation support projection 69 to slidably support the inner surface thereof, and a rotation support shaft 1 rotatably supporting the small diameter gear 55 meshing with the hoisting gear 54.
21.

On the inner peripheral side of the support projection 68a, a positioning projection 66 is fitted and positioned, and a positioning hole 68d having the same shape as the projection 66 and a positioning hole at the center of the positioning hole 68d. A screw insertion hole 68c for inserting the fixing screw 71 screwed into the screw hole 120 of the projection 66
have. A lead wire guide hole 7 formed adjacent to the positioning hole 68d is further provided on the inner peripheral side of the support protrusion 68a.
7 are provided. The lead wire guide hole 77 is formed by connecting the lead wire 72 extending from the pair of lead wire projecting holes 80 along the lead wire guide groove 79 to the lead wire guide portion 67.
And it is inserted along the positioning protrusion 66. Therefore, the lead wire 72 inserted into the lead wire guide hole 77
Is pressed and supported between the lead wire guide hole 77 and the lead wire guide portion 67, so that it is reliably prevented from coming off and positioned with respect to the lower master plate 68. The support projection 68a is
The tip of the lead wire 72 holds the lead wire guide groove 7
9 from being protruded.

As shown in FIG. 3, a strobe circuit board 21 and a film motor 19 are accommodated in a narrow space S surrounded by the side cover 13 of the camera grip 11, the battery 24, the spool 17, and the like. . As shown in FIG. 4, the strobe circuit board 21 has a hook shape in which a part of a rectangular plate is cut out. The hook-shaped notch 81 of the flash circuit board 21 is formed to be substantially the same as the axial length of the rotating shaft 122 of the film motor 19. Accordingly, when the film motor 19 is disposed in the hook-shaped notch 81, the motor 19 and the substrate 21 can be combined very effectively, and the installation space in the space S in the longitudinal direction can be minimized. Also, as shown in FIG. 3, a large number of strobe circuits 20 are mounted on the film motor 19 around a rotation shaft 122 of the film motor 19.
Is provided on the strobe circuit board 21 so as to be accommodated in a plan view. Thereby, the film motor 19 and the substrate 21 can be extremely effectively combined in the plan view of FIG. 3, and the installation space of the space S in the plan view can be minimized.

With these structures, the film motor 19 and the strobe circuit board 21 on which the strobe circuit 20 and the circuit element 86 are arranged can be easily housed in the extremely narrow space S surrounded by the battery 24, the spool 17, and the like. Can be. Reference numeral 124 in FIG. 3 denotes a spring member for pressing the film F wound by the charge motor 18, and reference numeral 83 in FIG. 4 denotes fixing screws for fixing the flash circuit board 21 to the camera body 12.

An aperture control mechanism for controlling the aperture to a set aperture diameter will be described with reference to FIG. This aperture control mechanism is disposed adjacent to the spool 17 of FIG. 11, and has a main aperture latch lever 87 that makes one end of the aperture reset lever 34 abut and engage. The main aperture latch lever 87 is rotatably supported by a rotation support shaft 92, and has a latch claw 95 that can engage with the latch teeth 108b of the pulse plate 108. The other end of the return spring 93 having one end attached to the camera body 12 is hooked to the spring mounting portion 94 of the main aperture latch lever 87, whereby the main aperture latch lever 87 is moved counterclockwise in the figure. Is urged to rotate.

A secondary throttle latch lever 97 is
Are rotatably supported coaxially with the main throttle latch lever 87.
The auxiliary throttle latch lever 97 has a receiving protrusion 97a at one end.
And an interlocking lever 98 at the other end. A coil-shaped coupling spring 96 is fitted into the rotating support shaft 92, and one end of the coupling spring 96 is engaged with a spring hooking portion 87 b formed on the back side of the main throttle latch lever 87, and the other end thereof. The part is engaged with the interlocking lever 98. Thus, the main aperture latch lever 87 is biased to rotate counterclockwise in FIG. The main aperture latch lever 87 has a contact projection 87a that can engage with the receiving projection 97a when rotated counterclockwise. Therefore, the main aperture latch lever 87 and the auxiliary aperture latch lever 97 are not shown in FIG. Can be integrally rotated in the counterclockwise direction.

A throttle solenoid 99 is provided below the sub-throttle latch lever 97, and a floating portion 100 a of the plunger 100 of the throttle solenoid 99 is engaged with an interlocking notch 98 a of the interlock lever 98. Therefore, the plunger 1 which is expanded and contracted by the demagnetization and excitation of the throttle solenoid 99
00 allows the sub-aperture latch lever 97 to be rotated counterclockwise or held clockwise. This allows the pulse plate 108 to be latched or released.

The rack support plate 104 slidably supported in the vertical direction by a slide support mechanism (not shown) is a small-diameter gear 1 of a large-diameter gear 107 provided adjacent to the main throttle latch lever 87.
The rack 105 meshes with the rack 106. The photographic lens (not shown) has a lens-side iris adjustment lever 101 that can move up and down in conjunction with the iris, and the lens-side iris adjustment lever 101 is attached to one end of the photographic lens barrel 10a. 8 is always urged upward in FIG. Rack 10 of rack support plate 104
The slide plate 102 is provided on the side opposite to 5.
The slide plate 102 has a photographic lens of the camera body 12.
When it is attached to the lens, it engages with the lens-side aperture adjustment lever 101, receives the urging force of the return spring 110 via this adjustment lever 101, and urges the rack support plate 104 upward. A mirror-side swing lever 103 is arranged at a position where the mirror-side swing lever 103 can abut on the slide plate 102.

A pulse plate 108 is rotatably provided adjacent to the large-diameter gear 107. This pulse plate 108
Are a number of pulse holes 108a formed along the circumference,
It has a number of latch teeth 108b formed on the outer peripheral edge, and a small-diameter gear 108c provided coaxially and integrally with the pulse plate 108. A diaphragm photo interrupter 109 is provided adjacent to the pulse plate 108. The diaphragm photo interrupter 109 has a large number of rotationally moving pulse holes 108.
By detecting a, the number of rotations and the rotation position of the pulse plate 108 are detected.

In the camera having the above configuration, before the release in which the film F is wound up by one frame and the shutter charge and the mirror charge have been completed, the shutter / mirror charge mechanism is in the state shown in FIG. ing. In this state, the cam gear 32 is in the rotational position shown in the figure, the shutter charge lever 38 is in the initial position where the roller pin 38b is in contact with the back surface 30b of the shutter cam 30, and the mirror charge lever 33 is in the mirror position. It is in an initial position where it is brought into contact with the back surface portion 31c of the cam 31. Shutter side charge lever 91
Is at the shutter charge completion position shown by the solid line in the figure, and the mirror interlocking lever 90 is at the mirror charge completion position shown by the solid line in the figure. Further, since the mirror charge lever 33 is rotated most counterclockwise, the interlocking arm 115 moves the switch board 36a to the position shown in the drawing with respect to the switch lever 36b via the interlocking projection 112. As a result, two contact brushes 11 are attached to the adjacent contacts 113a and 113b which are insulated from each other.
4 are in contact with each other.

At this time, in the aperture control mechanism, the mirror side swing lever 103 holds the slide plate 102 at the position shown in FIG.
Is held at the position shown in FIG. In this state,
The aperture of the taking lens is fully open. In this state, the interlocking lever 98 and the sub-aperture latch lever 9 are operated by the aperture solenoid 99 which has been excited and contracted.
7, the latch pawl 95 is separated from the latch teeth 108b, and the pulse plate 108 is released.

In this state, when the shutter button is half-pressed, photometry starts. When the shutter button is fully pressed, the mirror interlock lever 90 is
Is moved from the solid line position in FIG. 5 to the two-dot chain line position, and the mirror is raised to a position where photography is possible. Then, the mirror-side swing lever 103 is moved upward in FIG. 8 in conjunction with the movement of the mirror interlocking lever 90 to the position indicated by the two-dot chain line.
The lens-side iris adjustment lever 101, whose upward movement has been restricted by the slide plate 102, moves upward.
The throttle that was fully open starts reducing the diameter.

A rack 105 moving upward together with the slide plate 102 is moved by a large-diameter gear 107 via a small-diameter gear 106.
Is rotated clockwise, the small-diameter gear 108c, and thus the pulse plate 108, is rotated counterclockwise via the large-diameter gear 107. At this time, the aperture photo interrupter 109 reads the change in movement of the pulse hole 108a of the pulse plate 108 as the number of pulses corresponding to the amount of change in the aperture, and sends the information to a control unit (not shown). The control unit compares the value based on the aperture information with a preset value, and as a result, energizes the aperture solenoid 99 when it is determined that the aperture has a diameter corresponding to the set value.

Then, the latch lever 87 with the sub-aperture latch lever 97 released is rotated counterclockwise in FIG. 9 by the return spring 93, and as shown in FIG.
5 is engaged with the latch tooth 108b. As a result, the rotation of the pulse plate 108 is prevented.
7. Further movement of the slide plate 102 via the rack 105 is restricted. Therefore, this slide plate 102
, The lens-side aperture adjustment lever 101 is stopped at an appropriate aperture position.

After the completion of the exposure, the charging motor 18 is driven to rotate in the direction of completion of the charging, so that the cam gear 32 is driven via the pinion gear 25, gears 26, 27 and 28.
Is rotated counterclockwise, the mirror cam 31 presses the roller pin 33a outward by the first rotating cam surface 31a. Thereby, the mirror charge lever 3
3 moves the mirror interlocking lever 90 at the position indicated by the two-dot chain line in FIG. 5 upwardly in FIG.

Similarly, the rotating shutter cam 30 presses and moves the roller pin 38b outward by the cam surface 30a, and rotates the shutter charge lever 38 clockwise in the drawing. As a result, the charge pin 38a starts to press and move the shutter charge lever 91 to the left in the drawing to charge the operated shutter. The rotation of the mirror charge lever 33 causes the interlocking arm 11 to move.
5. The switch board 36a is rotated clockwise in the figure via the interlocking projection 112, and the contact 113a is insulated from each other.
Contact brushes 114 that have been in contact with
Contact the contacts 113b and 113c which are not insulated from each other.

At the same time, the rotation of the mirror charge lever 33 causes the interlocking pin 88 to move in the same direction, and presses the aperture reset lever 34 to rotate clockwise. This allows
Latch lever 8 located at the position shown by the two-dot chain line in FIG.
7 is returned to the return spring 93 by the aperture reset lever 34.
10 is pressed in the aperture reset direction (the right direction in FIGS. 6 and 9), and the state shown in FIG. 10 is obtained.

When the cam gear 32 further rotates in the same direction from the state shown in FIG. 6, the cam surface 3 gradually increases in diameter according to the rotation.
0a further rotates the shutter charge lever 38 clockwise via the roller pin 38b. This allows
Shutter charge lever 9 via charge pin 38a
1 is completely moved to the shutter charge completion position (FIG. 7).

The large-diameter first rotating cam surface 31a provides
The mirror charge lever 3 rotated clockwise to the maximum to move the mirror interlock lever 90 to the mirror charge position.
3 gradually moves the leading end of the roller pin 33a away from the mirror interlocking lever 90 by moving from the first rotating cam surface 31a to the second rotating cam surface 31b. At this time, the rotation of the mirror charge lever 33 causes the interlocking pin 8 to rotate.
8 also moves in the same direction, so that the aperture reset lever 34 rotates counterclockwise by the urging force (not shown) and moves away from the latch lever 87 to the position indicated by the two-dot chain line in FIG. At this time, since the plunger 100 is attracted to the permanent magnet of the squeezing solenoid 99, the latch lever 87 which is about to rotate clockwise in FIG. , Plunger 100
The further rotation is restricted by the head of FIG.
At the aperture reset position.

Then, from the state shown in FIG.
When the roller 2 further rotates, the mirror charge lever 33 rotates until the roller pin 33a comes into contact with the rear surface portion 31c because the roller pin 33a is released from the second rotation cam surface 31b. At the same time, when the shutter charge lever 38 releases the roller pin 38b from the cam surface 30a, the shutter charge lever 38 rotates until the roller pin 38b comes into contact with the shutter cam 30b. By the rotation of the mirror charge lever 33, the switch board 36a is rotated counterclockwise via the interlocking arm 115 and the interlocking projection 112. Therefore, the contact brush 114 that has been in contact with the contacts 113b and 113c contacts the contacts 113b and 113a, so that the one-turn switch 37 detects one rotation of the cam gear 32. Based on this detection signal being output to the control unit,
The rotation of the charging motor 18 is stopped, and the shutter / mirror charging mechanism is returned to the initial position.

On the other hand, after the shutter release is completed, the control unit outputs a rotation drive signal to the film motor 19, and when the film motor 19 is driven to rotate in the film winding direction, the small-diameter gear rotating in the counterclockwise direction is rotated. The planetary lever 42 is rotated by 41a, and the play gear 43 meshes with the large-diameter gear 56. Thus, the spool 17 is moved through the large-diameter gear 56, the small-diameter gear 55, and the hoisting gear 54 as shown in FIG.
1 is rotated in the counterclockwise direction (winding direction). Then, the film F is wound up. The number of rotations of the rotating plate 57 that rotates with the movement of the film F is read by the photo interrupter 58, and the film F is wound up by one frame according to a signal from the control unit based on the rotation speed. At this point, the film motor 19 is stopped.

When the rewind switch (not shown) is turned on after the exposure of all the frames of the film F is completed, the film motor 19 is driven to rotate in the film rewind direction based on a signal from the control unit. The rotation of the sun gear 41 based on this rotation causes the planetary lever 42 to rotate clockwise with the planetary gear 43 in the figure, and the planetary gear 43 meshes with the gear 44. Then, the rotation of the film motor 19 is transmitted to the gear 44 via the planetary gear 43, and thus to the rewind reduction gear train 49,
Further, the rewind fork 53 rotates through the through shaft 50, the through shaft gear 51, and the rewind gear 52, and rewinds the exposed film F into the cartridge located on the side opposite to the spool 17.

When the shutter / mirror charging mechanism is driven and the film winding mechanism is driven, the lead wire 72 coming out of the lead wire projecting hole 80 of the charging motor 18 is
The lead wire guide groove 79 and the lead wire guide portion 67 are inserted into the lead wire guide hole 77, the floating thereof is suppressed by the support protrusion 68 a, and the lead wire guide portion 67 and the lead wire guide hole 77 Since the lead wire 72 protrudes out of the spool from the opening 69a while being pressed and supported therebetween, there is no inconvenience that the lead wire 72 interferes with the rotational drive of the spool 17.

In this embodiment, the charging motor 1
Although the configuration 8 is coaxial with the spool 17, the shape of the charging motor 18 does not necessarily have to be coaxial with the spool 17.

[0047]

As described above, according to the motor supporting structure in the spool of the present invention, even when the spool driving mechanism is provided on the end side of the spool having the motor lead wire, the lead wire of the motor in the spool is connected to the spool. The guide can be easily and reliably guided to the outside of the spool without interfering with the rotation, so that the operation at the time of assembling the motor can be simplified.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing a motor support structure in a spool according to the present invention in detail.

FIG. 2 is a bottom view showing a charging motor in a spool.

FIG. 3 is a plan sectional view showing a camera grip unit.

FIG. 4 is a side view illustrating a state where the film motor and the strobe circuit board are assembled, with a side cover omitted.

FIG. 5 is a plan view showing a state before a shutter / mirror charging mechanism is released.

FIG. 6 is a plan view showing a state immediately after completion of a mirror charge after a shutter / mirror charge mechanism is released.

FIG. 7 is a plan view showing a state immediately after the shutter / mirror charging mechanism has released the shutter and just before shutter charging is completed.

FIG. 8 is a side view showing a state in which the aperture of the aperture control mechanism is in an open state before release.

FIG. 9 is a side view showing the aperture stop state of the aperture control mechanism after release.

FIG. 10 is a side view showing a state immediately after completion of exposure of the aperture control mechanism immediately after completion of aperture reset.

FIG. 11 is an exploded perspective view showing a shutter / mirror charging mechanism and a film winding / rewinding mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Camera grip part 12 Camera main body 13 Side cover 14 Grip rubber 15 Rear lid 17 Spool 18 Charging motor 18a Rotating shaft 19 Film motor 20 Strobe circuit 21 Strobe circuit board 22 Sprocket 23 Main capacitor 24 Battery 29 Reduction gear train 30 Shutter cam 31 cam for mirror 32 cam gear 33 mirror charge lever 33a roller pin 34 aperture reset lever 35 coil spring 37 one-turn switch 38 shutter charge lever 38a charge pin 38b roller pin 41 sun gear 42 planetary lever 43 planetary gear 49 rewind reduction gear train 53 rewind Fork 54 Hoisting gear 57 Rotating plate 58 Photo interrupter 61 Upper stop plate 63 Positioning projection 64 Engagement positioning hole 65 Rotation support step 66 Determining projection 67 Lead wire guide 68 Lower master plate 68a Support projection 68b Insertion recess 68c Screw insertion hole 68d Positioning hole 69 Rotation support projection 69a Opening 72 Lead wire 74 Lower stop plate 77 Lead wire guide hole 78 Motor bracket 79 Lead wire guide groove 80 Lead wire projecting hole 81 Hook-shaped notch 86 Circuit element 87 Iris latch lever 88 Interlock pin 90 Mirror interlock lever 91 Shutter side charge lever 93 Return spring 95 Latch claw 97 Sub-iris latch lever 97a Receiving protrusion 98 Interlock Lever 98a Interlocking cutout 99 Diaphragm solenoid 100 Plunger 100a Idling section 101 Lens side aperture adjustment lever 102 Slide plate 103 Mirror side swing lever 104 Rack support plate 105 Rack 106 Small diameter gear 107 Large diameter gear 108 Pulse plate 108a Pulse hole 108b Latch tooth 108c Small diameter gear 109 Throttle photo interrupter 110 Return spring 112 Interlocking projection 114 Contact brush 115 Interlocking arm 123 Upper master plate F Film S Space

Claims (3)

(57) [Scope of request for utility model registration] 1. A camera having a rotatable spool and one motor located in the spool, wherein the spool has an opening at one end and the other end, and the motor is provided at one end thereof. A rotation shaft to be projected from the opening at the one end of the spool, a positioning projection located at the shaft of the spool at the other end, and a pair of leads to be projected from the opening at the other end of the spool. And a main plate for rotatably supporting the other end of the spool and positioning and supporting the other end of the motor, wherein the positioning protrusion of the motor is fitted into the main plate. A motor support structure in a spool of a camera, comprising: a positioning hole to be led; and a pair of lead wire guide holes for guiding the pair of lead wires out of the spool. 2. A motor supporting structure in a spool of a camera according to claim 1, further comprising: a lead guide groove for guiding a pair of lead wires to the other end of the motor; A motor supporting structure in a spool of a camera provided with a lead wire guide portion for guiding a pair of lead wires to a lead wire guide hole along the lead wire guide portion and pressing the pair of lead wires against the lead wire guide hole. 3. The motor supporting structure in a spool of a camera according to claim 1, wherein the parent plate is fitted to the other end of the spool, and the other end is rotatably supported by an outer peripheral portion thereof. A motor supporting structure in a spool of a camera having a supporting protrusion for positioning and supporting a motor lead wire by a peripheral portion.