JPS6411931B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a motor drive camera.

(Prior art and its problems) Recently, motor drive cameras have become popular.

Conventional manual winding mechanisms generally have a structure in which driving force is input from outside the top cover at the top of the film spool chamber using a winding lever, and a gear transmission shaft, link, lever, etc. are used to transmit the driving force. The structure was such that the mechanical parts transmitted the driving force from the upper base plate of the camera body to the lower base plate of the mirror box, and many members were arranged between the spool chamber and the side of the mirror box.

Therefore, in conventional motor drive cameras, the motor cannot be placed inside the camera body, and instead a winder with a motor installed outside the camera can be attached and detached. This enables automatic winding.
The winder part made the camera larger, making it inconvenient to carry.

On the other hand, Japanese Patent Application Laid-Open No. 50-39538 (preceding example A) has the winder section integrated with the camera section.
However, this prior example A simply integrates a camera section and a winder section, and it is still inevitable that the camera will become larger.

When considering a camera that integrates an automatic winding mechanism into the camera body as a final product,
When developing this type of camera, it is important to keep in mind that even if the motor and battery are built into the camera, the external size will not become extremely large compared to conventional cameras that do not have built-in motors and batteries. It is desirable to have a single motor from the viewpoint of downsizing, parts cost, etc., and it is also preferable that the motor be as small as possible due to space constraints.
Therefore, it is necessary to use a motor that is smaller than the external winder motor, but the smaller the motor, the lower the output. When using such a small motor, in order to effectively utilize its output, it is necessary to avoid unnecessary energy loss in mechanical components and to minimize transmission loss. In addition, the location where the motor and battery are stored is the most efficient location within the overall space of the camera.

In a motor drive camera in which a motor is built into the camera, Japanese Patent Laid-Open No. 7323/1983 (preceding example B) incorporates the motor into a spool in order to effectively utilize the space inside the camera. However, in this prior example B, the outer cylinder inside the spool becomes thicker by the amount of the motor, resulting in a thicker camera as a whole, and the motor inside the spool is intended for film winding and shutter charging. The rotational output end of the motor for this purpose was only at the upper end, and the drive to the mirror and automatic aperture mechanism was not taken into consideration. Therefore, in order to drive the mirror and automatic diaphragm mechanism, it is necessary to arrange another motor as shown in Fig. 2 of precedent example B, or to transmit the driving force from the upper motor output end to the mirror and automatic diaphragm mechanism. It was necessary to arrange a connecting mechanism for this purpose. In this way, in order to use the in-spool motor mechanism that provides driving force to the shutter and winding mechanism, and also to drive the mirror and automatic aperture mechanism,
It is necessary to install another motor or a drive mechanism that transmits the driving force from one of the output shafts of the motor in the spool located at the end of the main body to the mirror and automatic diaphragm mechanism, which increases the efficiency of power transmission. However, there was also the problem that the size of the mechanism was large.

The purpose of the present invention is to effectively utilize the output of a single motor, to make the overall shape smaller than the conventional in-spool motor system, and to be able to easily assemble, adjust, and
It is an object of the present invention to provide a motor drive camera whose operation can be easily confirmed.

There are two methods of assembly: one is to sequentially assemble all the parts into the camera body, and the other is to assemble a plurality of parts into a single unit and then combine these single units. In the former case, operation is checked after final assembly, and if a defect is found, the defective component must be dismantled in order to replace the component, resulting in poor yield.

To improve this, it is necessary to check the assembly process even a little. In order to do this, the assembly of multiple related parts and elements should be made into a single unit, each unit should be able to check its own role as a single unit, and furthermore, the assembly should be made into a subassembly by combining the single units. If a malfunction is found by performing an operation check, the yield rate should be improved by replacing the single unit.

Conventionally, a single-lens reflex camera in which the entire camera body, shutter unit, and mirror unit are assembled separately is known from Utility Model Publication No. 42-18562 (preceding example C). However, in this prior example C, in order to check the operational relationship between the shutter unit and the mirror unit, it was necessary to attach them to the camera body.

(Means for Solving the Problems) In view of the above-mentioned circumstances, the present invention is divided into a body section equipped with a film winding mechanism, a camera drive section equipped with a motor, and a camera control mechanism section equipped with a mirror box. an upper plate having a shutter charging mechanism that connects the camera drive section to a film winding mechanism disposed in the body section and a shutter control mechanism that controls opening and closing of the shutter; and a mirror and automatic diaphragm drive mechanism. Each of the base plates provided with the windings and the base plate is made into a single unit, and between these single units, a leading curtain winding shaft and a trailing curtain winding shaft, and a motor that can rotate in forward and backward directions and have output shafts above and below the winding shaft are installed in the vicinity of these winding shafts. A single unit as a mirror box configured as a semi-assembly and further provided with an interlocking mechanism on the side surface that connects the shutter control mechanism and shutter charge mechanism of the upper plate to the mirror and automatic diaphragm drive mechanism of the lower plate. The winding shaft is arranged in the camera drive section so as to be close to each other, forming a subassembly as a camera control mechanism section, and when this camera control mechanism section and the body section are combined, the upper and lower drives The motor, upper curtain winding shaft, and interlocking mechanism are now placed close to each other in the space between the film chamber on the body side and the side of the mirror box, which is the position closest to the mechanism and where the highest rate of power transmission is possible. This is what I did.

(Example) Hereinafter, the present invention will be described in more detail with reference to the drawings and the like.

FIG. 1 is a plan view of an embodiment of a motor drive camera according to the present invention, and FIG. 2 is a front view of the same.

In each figure, 1 is a body, 2 is a mount base, and 3 is a mirror box. As shown in FIG. 2, the battery 4 is housed under the camera. Motor 5 connects the film chamber and mirror box 3
It has an output shaft above and below. The film winding and shutter charge mechanism connected to the upper first output shaft 5a is designated as A, and the mirror quick return and automatic aperture mechanism connected to the second output shaft 5b is designated as B.

FIG. 3 is an exploded perspective view showing an embodiment of the mechanism in the device of the present invention.

In this device, a main plate 6 is installed on the upper side of the mirror box 3, in which a shutter control mechanism for controlling the film winding, shutter charge mechanism A, and shutter opening/closing to be described later is incorporated, and a mirror quick return and automatic aperture mechanism B are installed on the lower side of the mirror box 3. The base plate 8 to be incorporated is attached. A motor 5 and a shutter mechanism are incorporated between the base plates 6 and 8 to constitute a camera drive section. A mechanism C for interlocking a mirror quick return, an automatic diaphragm mechanism B, and a film winding and shutter charge mechanism A is built into the left side of the mirror box. This mirror box 3 is combined with the camera drive section to constitute a camera control mechanism section. The base plate 7 is an auxiliary base plate that has the role of fixing the motor 5.

The operation of each mechanism will be explained below.

The output shaft 5a of the motor is connected via a clutch 12 to
Drives the film winding and shutter charge mechanism,
The output shaft 5b drives a mirror quick return mechanism and an automatic aperture mechanism. The film winding, shutter charge mechanism, mirror quick return mechanism, and automatic aperture mechanism are driven by rotating the motor 5 in the positive or
This is done by switching to reverse rotation. That is, the film winding and the shutter charge mechanism are interlocked by the forward rotation of the motor, and the mirror quick return and the automatic aperture mechanism are interlocked by the reverse rotation of the motor. In the embodiment of the present invention, the shutter charge and film winding are performed by rotating the motor 5 in a counterclockwise direction, and the mirror quick return mechanism and the automatic refrigerating mechanism are performed by rotating the motor 5 in a clockwise direction.

The motor output shaft 5a is provided with a friction spring 11 that absorbs sudden start-up of the motor 5 and overrunning until rotation stops due to disconnection of the motor battery, and is connected to the motor gear 10. Now, when the motor 5 rotates counterclockwise for film winding and shutter charging, the rotation is interlocked with the clutch mechanism 12 via the motor gear 10.

Next, an example of the structure of the clutch will be explained with reference to FIG. 4A shows the clutch 12 on the A side, and FIG. 4B shows the clutch 34 on the B side. Fourth
The clutch 12 will be briefly explained with reference to FIG. The counterclockwise rotation of motor 5 (FIG. 3) causes clutch gear 12a to rotate clockwise. At this time, the clutch ball 12d is placed between the clutch spring 1 and the narrower gap between the clutch cam 12b and the clutch gear 12a.
Clutch cam 12b to fit into 2c.
The interlocking gear 13 (FIG. 3), which is integral with the clutch gear 12a, also rotates clockwise integrally with the clutch gear 12a. When the gear 13 rotates, it passes through the reduction gear train 14 and the gear 1 rotates once.
5 is rotated clockwise. 1 rotation gear 15
is integrated with the one-rotation limiting plate 16, and the sector gear 6
Shutter charge is performed via 8. When the one-rotation limiting plate 16 makes one rotation clockwise, the one-rotation limiting lever 17 enters the notch 16a by the spring 18, cutting off the mechanical interlock, and at the same time, the rotation of the motor 5 is stopped by the interlocking of the switch _S1 , which will be described later. .

On the other hand, film winding is interlocked with a spool gear 19 in the middle of the reduction gear train 14, and the spool 21 is rotated via a friction spring mechanism 20 for absorbing excess rotation. Further, the sprocket 22 is interlocked with a sprocket gear (not shown) on the other hand.
This is done by rotating the . In the embodiment of the present invention, the spool 21, spool friction mechanism 20, and sprocket 22 are stored on the body side, and are connected to the spool gear 19 by a sprocket gear (not shown) during assembly.

When the shutter charge is completed and the film is wound by a specified amount, the one-rotation limiting lever 17 enters the notch 16a of the one-rotation limiting plate 16, as described above, and the interlocking operation is stopped. At this time, in conjunction with this one-rotation limiting lever 17, the switch _S1 is switched so that the motor 5 rotates in the opposite direction (clockwise). By pressing the release button in this state, the electric circuit is activated and the motor 5 starts rotating in the opposite direction (clockwise).
It is linked to the mirror-up and automatic aperture mechanisms by a mechanism to be described later. At this time, the gear train for shutter charging and film winding is in a stopped state because the one-rotation limiting lever 17 has entered the notch 16a of the one-rotation limiting plate 16, but the clutch gear is engaged by the aforementioned clutch mechanism 12. Only the motor gear 12a and the motor gear 10 rotate in opposite directions. That is, when the motor 5 rotates in the reverse direction, the ball 12d moves to the wider gap between the clutch cam 12b and the clutch gear 12a, so the clutch gear 12a becomes free. Since the clutch mechanism 12 has the above-described configuration, when the motor 5 rotates counterclockwise, shutter charging and film winding are performed through the clutch mechanism 12, and when the motor 5 rotates counterclockwise, the clutch gear is Only 12a will rotate in the opposite direction.

Next, power transmission from the motor 5 to the mirror quick return mechanism and automatic aperture mechanism will be explained.

Interlocking with the mirror quick return mechanism and automatic diaphragm mechanism is performed via the other output shaft 5b of the motor 5, and rotation is opposite to the direction of rotation (counterclockwise) of interlocking with shutter charge and film winding (clockwise). This is done using That is, the other output shaft 5b of the motor 5 is provided with a friction spring 31 having the above-described role, and is connected to a motor gear 32 via this spring. The clockwise rotation of the motor 5 is connected via this motor gear 32, through a reduction gear train 33, to a clutch mechanism 34 which operates in reverse to the clutch mechanism 12 described above, and is integrated with the clutch cam 34b by the action of this clutch mechanism 34. The clutch plate 35 is rotated counterclockwise to drive the mirror quick return mechanism and automatic diaphragm mechanism.

That is, in FIG. 4B, the clutch gear 34a connected to the output shaft 5b of the motor 5 rotates counterclockwise, but at this time, the ball 34d is pushed into the narrower gap of the clutch cam 34b by the spring 34c. Clutch plate 35 is also clutch gear 3
It rotates counterclockwise together with 4a. When shutter winding and film winding are performed by counterclockwise rotation of the motor 5, the reduction gear train 3 passes through the motor gear 32.
3 also rotates in the reverse direction, but only the clutch gear 34a of the clutch mechanism rotates in the reverse direction. The clutch plate 35, which is driven counterclockwise by the clockwise rotation of the motor 5 through the motor gear 32, the reduction gear train 33, and the clutch mechanism 34, rotates within at least 180 degrees, and in the embodiment of the present invention, the clutch plate 35 rotates by at least 180 degrees. It is rotation. A pin 35a is installed in the clutch plate 35, and this pin 35a connects to the mirror lift communication lever 3.
6 and rotate this lever 36 clockwise around the shaft 37.

On the other hand, the lens aperture lever 39 is also rotatably attached coaxially to the rotating shaft 37 of the mirror communication lever 36, and is given a counterclockwise rotational habit by a spring 40. One end 39a of the lens aperture lever 39 is interlocked with the mirror lift communication lever 36, and a spring 40 gives the mirror lift communication lever a habit of always rotating counterclockwise, and a pin 38 keeps both levers in a stopped state. There is. Therefore, the pin 35a of the clutch plate 35
When the mirror lift communication lever 36 is pushed and rotated clockwise, the lens narrowing lever 39 is rotated clockwise against the spring 40, and the other end 39 is rotated clockwise against the spring 40.
Narrow down the lenses based on b. At the same time, the tip 36a of the mirror lift communication lever 36 rotates the mirror lift lever 41 clockwise around the shaft 49.
The tip 41a of the mirror lifting lever 41 is the mirror 50
Then, the pin 46 integrated with the mirror holding frame is pushed up against the mirror restoring spring 51 to raise the mirror.

With the mirror 50 raised, the other tip 41b of the mirror raising lever 41 rotates the idle lever 42, which is given a clockwise movement habit by a spring 45, counterclockwise, and the spring 44 causes it to move counterclockwise. The connection with the leading curtain tension release lever 43 to which the behavior is given is released, and this lever is rotated counterclockwise. Leading curtain tension release lever 43
In the process of moving counterclockwise, the mirror ascent completion switch _S2 is closed, and the motor 5 is stopped by the operation of the circuit described later. When the leading curtain tension release lever 43 rotates counterclockwise, its tip pushes the leading curtain tension lever 61, which is given clockwise rotational force by a spring 60, and rotates it counterclockwise to release the leading curtain tension. Cut off the connection with 62 and start the first act.
After the leading curtain starts running, the rear curtain also starts running by a shutter control mechanism (not shown), but during this time, the power supply to the motor 5 is cut off by the switch interlocking, which will be described later, so the motor 5 can move in either direction. It doesn't rotate either. After the trailing curtain has finished traveling on the screen, and just before the trailing curtain finishes traveling, the pin 65b of the trailing curtain gear 65 that is linked to the trailing curtain pushes one end 17b of the one-turn limit lever 17 against the spring 18, and this lever is pressed. Rotate it clockwise to release the connection with the one-turn limit plate 16, and at the same time switch _S1 .

When the switch _S1 is switched in conjunction with the rear curtain, the motor 5 begins to rotate counterclockwise and starts shutter charging and film winding. At this time, the gear train linked to the mirror quick return mechanism and automatic aperture mechanism also begins to rotate in the opposite direction. When the gear train 33 rotates in the opposite direction, the clutch mechanism 34 becomes free, so the mirror lift communication lever 3
6. The automatic aperture lever 39 is rotated counterclockwise by the spring 40 and stopped at a fixed position by the stopper pin 38.

When these levers are rotated counterclockwise, the mirror 50 is also lowered by the mirror restoring spring 51 and stopped at its original position. In general, the time required for the mirror contact lever 36 and automatic aperture lever 39 to return to their normal positions is short compared to the time required for shutter charging and film winding, so after these return, the clutch plate 35 is in a stopped state, and from then on, the shutter is not charged. Until film winding is completed, only the clutch gear 34a of the clutch mechanism together with the reduction gear train 33 rotates in the opposite direction.

When the film winding and shutter charging are completed, as described above, the tip 17a of the one-rotation limiting lever 17 jumps into the notch of the one-rotation limiting plate 16 by the spring 18, and rotation is stopped, and by switching the switch _S1 in conjunction with this, This time, the motor 5 is now able to rotate in the reverse direction (clockwise), and all preparations for photographing are completed, and photographing can begin in conjunction with the release.

Next, a shutter charge mechanism composed of the reduction gear 14, the one-rotation gear 15, the partially toothed gear 68, the return gear 67, the leading gear 66, and the trailing gear 65 will be described. The rotation transmitted through the clutch 12 and the reduction gear 14 due to the counterclockwise rotation of the motor 5 is reduced to one rotation by the one-rotation gear 15 . The rotation of the one-rotation gear 15 is interlocked with the partially toothed gear 68, which also makes one rotation, and the return gear 67
connected to. At this time, the partially toothed gear 68 rotates once, so the position of the partially toothed gear is always at a fixed position away from the teeth of the return gear 67 after winding is completed. On the other hand, a pinion gear 63 fixed to a leading shaft that is integrated with the leading drum is linked to a leading gear 66, and a pinion gear 64 fixed to a trailing shaft that is integrated with the trailing drum is linked to a trailing gear 65. ing. There is a return gear 67 below the leading gear and the trailing gear, and a counterclockwise rotational force is applied by a return spring 69 to the pin 67.
a, it is always stopped at a fixed position. When the motor 5 rotates counterclockwise, the partially toothed gear 68 rotates counterclockwise from the normal position via the reduction gear train 14. When the motor 5 rotates by a certain angle, it interlocks with the return gear 67 and rotates against the spring 69. Rotate 67 clockwise. When the return gear 67 rotates, the pin 67b embedded in the return gear 67 pushes the pin 66a on the lower side of the leading curtain gear 66, causing the leading gear 66 to wind up. The pin 66b pushes the lower pin 65a of the trailing gear 65, causing the trailing gear 65 to rotate and wind up the trailing curtain.

Near the end of the shutter charge, the pin 67a implanted in the return gear 67 pushes the tip of the charge lever 70, which is given a counterclockwise behavior by a spring 71 and is restricted by the pin, and rotates it clockwise. , the other end of the charge lever 70 pushes the leading curtain tension release lever 43, rotates it clockwise, and hooks the idle lever 42, thereby charging the leading curtain tension release lever. Furthermore, after the leading curtain tensioning lever 62 has overcome the overcharge of the leading curtain tensioning lever 61, the interlocking movement between the return gear 67 and the partially toothed gear 68 is disengaged, and the return gear 67 is returned to its original position by the spring 69. do. At the same time, the charge lever 70 is returned to its home position by the spring 71, and the leading curtain gear 66 and trailing curtain gear 65 are also returned by the length corresponding to the overcharge, but the leading curtain tensioning lever 62 is set by the leading curtain tensioning lever 61. Therefore, the shutter is stopped and the shutter charge is completed. In this state, the winding continues, and when the remaining winding is completed, the one-turn limit lever 1
7, the one-turn limiter plate 16 jumps in, and the winding is completed.

Finally, drive control of the mechanism according to the above configuration will be explained with reference to FIG.

FIG. 5 is a circuit diagram showing a control circuit for the motor 5. As shown in FIG. This circuit always ends its operation with the film being wound. In this state, when the main switch _S3 is turned on, the input terminal of the NAND gate _N1 of the flip-flop circuit (hereinafter referred to as FF) becomes
Therefore, the output of NAND gate _N1 forms an H state, and the output of NAND gate _N2 forms an L state. When the start switch S ₀ is turned on, the NAND gate N ₂
Since the input of NAND gate N1 becomes L, the output of NAND gate _N1 is switched from H to L. Therefore, the inverter
Since the output of In becomes H, transistor _T1 is turned on.
A base current is supplied to the transistor T ₂ via the resistor R ₄ and the transistor T ₂ is turned on. The switch _S1 is connected to the side because winding has been completed, and a current flows through the motor 5 in the direction indicated by the arrow a, causing the motor 5 to rotate in the direction of raising the mirror. Note that when the switch _S1 is on the side, the base of the transistor _T3 is connected to zero via the resistor _R6 , so that the transistor _T3 is off.

When the mirror lift is completed, the tension release lever 43
(see Figure 3) moves counterclockwise and switches S ₂
Turn on. Therefore, the base side of the transistor _T1 becomes L, the transistor _T1 is turned off, and therefore the transistor _T2 is also turned off, and the motor 5 is stopped without being supplied with current. Tension release lever 4
3 (see Figure 3), the tension of the front curtain is released, the front curtain of the shutter runs, then the rear curtain runs, and when that run is finished, switch _S1 switches to the 5th shutter curtain.
Switched to the figure side. As a result, the transistor
The base of T ₃ is connected to the positive side of battery E via resistor R ₆ , which turns off transistor T ₃ and supplies current to motor 5 in the direction indicated by arrow b, which is opposite to the direction in which the mirror rises. Start rotating.
At this time, switch S ₂ is in the on state, so
Transistor _T2 is off. Transistor T ₃
When turned on, the input of the NAND gate _N1 of the FF becomes L through the resistor _R4 , so the output of the NAND gate _N1 becomes H and the FF is reset.

When the motor 5 rotates in the winding direction, the mirror is first lowered in the initial stage of winding.

Next, winding is performed, but near the completion of winding,
As shown in FIG. 3, near the end of the shutter charge, the pin 67a installed in the return gear 67 pushes the tip of the charge lever 70, rotating the lever 70 clockwise, and the other end of the charge lever 70 tightens the leading curtain. The leading curtain tension release lever 43 is set by pushing the release lever 43, rotating it clockwise, and hooking it to the idle lever 42. At this point switch _S2 is turned off. Therefore, the base of the transistor _T1 is opened, but since the FF is reset, the output of the inverter In is L and the transistors _T1 and _T2 remain off.

When the winding is completed, the switch _S1 returns to normal, but since the transistor _T2 is turned off, no current flows through the motor 5, and the motor 5 stops. When the switch _S1 is turned off, the transistor _T3 is turned off and the input of the NAND gate _N1 returns to H. Therefore, if the start switch S ₀ continues to be in the on state, the switching of S ₁ is completed and the switch is turned on immediately.
The FF output switches from L to H again, and the rotation operation moves to raise the mirror. However, if the release button switch S ₀ is turned off before winding is completed, FF
has been reset and returns to before the start.
The motor 5 stops to form the end of one operation.

(Effects) As explained above, the motor drive camera according to the present invention has an upper base plate on which a shutter charge mechanism and a shutter control mechanism are disposed, a base plate on which a mirror drive and automatic aperture control mechanism are disposed, and an interlocking mechanism connected between these base plates. Each mirror box with a mechanism on the side is made into a single unit, so these can be adjusted and checked as a single unit.Furthermore, parts such as the upper shaft and motor can be assembled into the single unit and adjusted as a semi-assembly. Since adjustments and operation checks can be made on semi-finished products, defects can be immediately dealt with by replacing the single unit, which is expected to improve yields. Furthermore, because the related parts are assembled as a single unit, assembly is easier than when all the parts are assembled into the camera body.

In conventional manual winding mechanisms, driving force was input from outside the cover at the top of the film spool chamber using a winding lever, so mechanical components such as gear transmission shafts, links, and levers for transmitting driving force has a structure that transmits driving force from the top to the bottom of the camera body, and many components are placed in the space between the spool chamber and the side of the mirror box, but the present invention has a structure in which the motor, the upper curtain scroll shaft, and the interlocking part are placed in the space. Since the mechanisms are arranged close together, it is possible to provide a camera whose external size is not extremely large compared to conventional cameras.

In addition, since the motor, the upper scroll axis, and the interlocking mechanism on the side of the mirror box are placed close to each other between the upper and lower base plates, the overall thickness of the camera can be maintained at the same thickness as before, compared to the in-spool motor system. The driving force from the motor is transmitted to the upper plate from the upper output shaft, and to the base plate from the lower output shaft, and the interlocking mechanism and motor are both located close to each other, allowing for efficient driving force transmission and providing a compact camera. can.

[Brief explanation of drawings]

FIG. 1 is a plan layout diagram of an embodiment of a motor drive camera according to the present invention, FIG. 2 is a front layout diagram thereof, and FIG. 3 is an exploded perspective view showing an embodiment of a mechanism centered on a motor power transmission mechanism. FIG. 4 is an explanatory diagram showing the internal structure of the clutch mechanism, and FIG. 5 is a circuit diagram showing an embodiment of the motor drive circuit. 1...Body, 2...Mount base, 3...Mirror box, 4...Battery, 5...Motor, 6...Main plate,
7, 8... Main plate, 10... Motor gear, 11... Friction spring, 12... Clutch, 13... Interlocking gear,
14...Reduction gear train, 15...1 rotation gear, 16...1
Rotation limiting plate, 17... 1 rotation limiting lever, 19... Spool gear, 20... Friction spring mechanism, 21
... Spool, 22 ... Sprocket, 31 ... Friction spring, 32 ... Motor gear, 33 ... Reduction gear train, 34 ... Clutch mechanism, 35 ... Clutch plate, 3
6...Mirror lift communication lever, 37...shaft, 38...pin, 39...lens aperture lever, 40...spring,
41...Mirror lift lever, 42...Idle lever, 43...Leading curtain tension release lever, 45...Spring, 5
0...Mirror, 51...Mirror restoring spring, 60...Spring, 61...Front curtain tensioning lever, 62...Front curtain tensioning, 6
3... Pinion gear, 64... Pinion gear, 65...
Rear curtain gear, 66... Leading gear, 67... Return gear, 6
8... Intermittent gear, 69... Return spring, 70... Charge lever, 71... Spring, S ₀ ... Start switch, S ₁
…Switch, S ₂ …Switch, S ₃ …Main switch,
FF...Flip-flop, In...Inverter, E...
Power supply, _T1 , _T2 , _T3 ...transistor, _R1 to _R6 ...resistance.

Claims (1)

[Claims] 1. A motor drive camera in which a camera control mechanism section consisting of a mirror box and a camera drive section, each of which is separable, is separably attached to a body section equipped with a film winding mechanism, the mirror box having a shutter control mechanism on the side. and a shutter charge mechanism, a mirror, and an automatic diaphragm drive mechanism, and the camera drive unit includes an upper plate, a base plate, a front curtain winding shaft, a rear curtain winding shaft, and a motor, and the upper plate includes The shutter charge mechanism connected to the film winding mechanism and the shutter control mechanism that controls opening and closing of the shutter are disposed, the mirror and the automatic aperture drive mechanism are disposed on the base plate, and the front and rear curtains are disposed on the base plate. The curtain upper shaft is disposed between the upper plate and the base plate and close to the interlocking mechanism so as to be connected to the shutter charge mechanism and the shutter control mechanism, and the motor is rotatable in forward and reverse directions and is connected to the shutter charge mechanism and the shutter control mechanism. It is provided with an upper output shaft connected to a shutter charge mechanism and a lower output shaft connected to the mirror and the automatic diaphragm mechanism, and is disposed close to the leading and trailing curtain winding upper shafts, and is connected to the mirror box and the camera. When the camera control mechanism section consisting of a drive section is assembled to the body section, the motor, the leading and trailing curtain winding shafts, and the interlocking mechanism are connected between the film chamber of the body section and the side surface of the mirror box. A motor drive camera characterized in that the motor drive cameras are connected and arranged in close proximity to each other in a vacant space.