JPH0712982Y2 - Electric camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an electric camera in which an internal mechanism of the camera is driven by a motor, and more particularly to a camera capable of electric hoisting and rewinding.

[Conventional technology]

Conventionally, as a camera of this type, a rotary member that rotates in conjunction with a motor, a transmission member that drives a part of the internal mechanism by following the rotary member, and a rotary member that prevents rotation due to inertia A camera having an engaging member is known.

However, such a camera requires a mechanism for holding the engaging member at a position where it does not interfere with the rotating member when rewinding by the motor.

[Problems to be solved by the invention]

However, such a mechanism has the drawback of being complicated.

Therefore, an object of the present invention is to provide an electric camera that achieves automatic rewinding with a simple structure.

[Means for solving problems]

To achieve this object, the configuration adopted in the electric camera of the present invention will be described with reference to the reference numerals of the embodiments as follows.

That is, by causing the transmission member (12) to follow the rewind interlocking member (29) that operates in association with the start of rewinding,
In the unwinding position, the rotation member (31) is not driven and is held in a non-interlocking position where it does not act on the internal mechanism, and the transmission member (12) at this time is driven by the engagement member (13) to rewind. Is a holding member (12a, 13) for holding the engaging member (13) in a non-engageable position (position shown in FIG. 3) that does not lock the rotating member (31).
b) is provided.

[Action]

In this way, the transmission member (12) also has the function of controlling the engagement member (13), so that the structure can be simplified.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 are plan views showing the main part of the embodiment, FIG. 1 shows a state when hoisting is completed and waiting for a release operation, and FIG. 2 shows a release operation. FIG. 3 shows a state in which the mirror is raised and the rewinding is set after the winding of all the films is completed. FIG. 4 is a sectional view in the thrust direction of the sprocket shaft.

The disc 31 is provided with a notch 31a on its outer peripheral surface and a pin 23 is planted on its upper end surface, and is rotated by the driving force of a motor (not shown).

The lever 12 is axially supported about a shaft 21 as a center of rotation, and is urged in the counterclockwise direction by a spring 42 that is hooked on the upright bent portion 12b and the shaft 22, and is restrained by the stopper 10 at the position shown in FIG.

The lever 11 is engaged with the left end portion 12d of the lever 12 and can move from the A position to the B position when the lever 12 rotates right. By moving the lever 11 to the A position or the B position, the mirror is raised and the automatic focusing is performed.

The lever 13 is an engagement member that locks the disc 31, and the claw portion 13
a and a bent portion 13b are formed, and are axially supported about a shaft 22 as a center of rotation, and are urged in the counterclockwise direction by a spring 41 hooked to the bent portion 13b and the pin 26, and the bent portion of the lever 12 is rotated. It is in engagement with 12a.

When the lever 12 is in the state shown in FIG. 1, the claw portion 13a of the lever 13
Is located outside the outer periphery of the disc 31 and is in a non-engageable position where it cannot engage with the cutout portion 31a of the disc 31, and in the state of FIG. 2, the cutout of the disc 31 is It is in an engageable position that engages the portion 31a to mechanically stop the left rotation of the disc 31.

The lever 14 is formed with a spring hook 14a and a claw 14b.
It is axially supported about 21 as a rotation center, and is biased in the counterclockwise direction by a spring 44 hung between a spring hooking portion 14a and a standing bending portion 12a of the lever 12.

The lever 15 is formed with a corner portion 15a, a cutout portion 15b, and a sloped surface 15c, is pivotally supported by the lever 12 about a shaft 25 as a rotation center, and is a spring 43 hung between the 12c portion of the lever 12 and the corner portion 15a. Is urged in the left-handed direction by.

The claw portion 14b of the lever 14 and the cutout portion 15b of the lever 15 are in an engaging relationship, but when the disc 31 rotates in the clockwise direction, the pin 23
Is pushed by pushing the inclined surface 15c of the lever 15 and pivoting the lever 15 in the clockwise direction to release it.

The pin 23 and the lever 14 are engaged with each other when the disc 31 rotates in the counterclockwise direction, and the lever 14 is rotated by the pin 23 in the clockwise direction. When the lever 14 is rotated clockwise from the state shown in FIG. 1, the lever 14, the lever 15 and the lever 12 are integrally rotated to move the lever 11 from the position A to the position B.

The lever 16 is pivotally supported about a shaft 27 as a rotation center, and the lever 16
The spring 45 is urged in the clockwise direction by the spring 45 hung on the bent portion 16a and the pin 28, but the rotation is prevented by the fixed pin 24. The standing bend 16a of the lever 16 is
When the lever 16 rotates counterclockwise,
The lever 15 is rotated right by the upright bent portion 16a, and the engagement between the cutout portion 15b of the lever 15 and the claw portion 14b of the lever 14 is released.

The sprocket shaft 29 is interlocked with the disc 31 by a gear (not shown), and when the disc 31 turns clockwise, the sprocket shaft 29
Is rotated counterclockwise and is rotated integrally with the sprocket 30 shown in FIG. 4, whereby the film is fed in the winding direction.

In FIG. 4, the sprocket shaft 29 is movable in the thrust direction, and when it is pushed down by an operating member (not shown), the inclined surface 29a causes the lever 16 to rotate counterclockwise against the spring 45.

Next, the operation of this embodiment will be described.

When the shutter is released in the state shown in FIG. 1,
The disk 31 rotates about a quarter turn in the counterclockwise direction. Along with this lever 1
4 is pushed by the pin 23 and turned clockwise, but since the claw portion 14b of the lever 14 is engaged with the cutout portion 15b of the lever 15, the lever 1
The lever 4 and the lever 15 work together to push the lever 12 up from the position A to the position B, that is, to the state shown in FIG.
This raises the mirror and the automatic focusing works. The motor is stopped by the signal from the switch operated by this mirror up, but at this time, the claw portion 13a of the lever 13 is in the state of locking the cutout portion 31a of the disc 31, so that the excess due to the inertia of the disc 31 is generated. Left rotation can be stopped.

When the rear curtain of the shutter is closed, the motor rotates in the opposite direction to that when the mirror is raised to wind the film. When the disc 31 is rotated about 1/4 in the clockwise direction by this motor rotation, the lever 11 is rotated counterclockwise from the position B to the position A, and returns to the state shown in FIG. This brings down the mirror. When the disc 31 is further rotated about one turn in the clockwise direction, one film of film is wound up. At that time, the claw part of the lever 14
The engagement between 14b and the cutout portion 15b of the lever 15 is disengaged as the pin 23 pushes the inclined surface 15c of the lever 15 as the disk 31 rotates clockwise, so that the lever 14 and the lever 15 are in the third position. The lever 12 is only rotated as shown in the figure, and the lever 12 is not rotated. Then, as the pin 23 returns to the position shown in FIG. 1, the lever
The claw portion 14b of 14 and the cutout portion 15b of the lever 15 are engaged again.

When the winding of all the films is completed, the film is in the middle of winding, and at this time, the disc 31 is in the state as shown in FIG. 3, for example. When the winding of all the films is completed when the disc 31 is in the state shown in FIG. 3, when the sprocket shaft 29 is pushed down for rewinding, the lever 16 rotates in the left-handed direction as shown in FIG. The engagement between the claw portion 14b of the lever 14 and the cutout portion 15b of the lever 15 is released. Along with this, the motor rotates in the direction opposite to that at the time of hoisting, and the disc 31 rotates counterclockwise. This time,
Since the lever 12 does not rotate and the lever 11 also does not move, mirror up and automatic focusing are not performed. This is the standing bending portion 12a of the lever 12 which is stationary at the position shown in FIG.
Is a non-engageable position in which the claw portion 13a of the lever 13 cannot be engaged with the cutout portion 31a of the disc 31 by engaging with the bent portion 13b of the lever 13 that is an engaging member that locks the disc 31. This is because it is held.

[Effect of device]

As described above, according to the present invention, since the transmission member (12) has the function of controlling the engagement member (13), the structure of the camera can be simplified.

[Brief description of drawings]

1 to 3 are plan views showing the main part of the embodiment, FIG. 1 shows a state when hoisting is completed and waiting for a release operation, and FIG. 2 shows a release operation. FIG. 3 shows the state when the mirror is raised and the state where rewinding is set, and FIG. 4 is a sectional view of the sprocket shaft in the thrust direction. [Explanation of symbols of main parts] 31 …… Rotating member 12 …… Transmission member 29 …… Rewinding interlocking member 13 …… Engaging members 12a, 13b …… Holding member

Claims (1)

[Scope of utility model registration request] 1. A motor for operating an internal mechanism of a camera in forward and reverse directions, a rotating member for rotating in conjunction with the motor, and an interlocking position for interlocking with the rotating member for operating a part of the internal mechanism. , A transmission member movable between non-interlocking positions that are not interlocked, a rewind interlocking member that holds the transmission member in the non-interlocking position with a film rewinding start operation, and rotation by inertia of the rotating member. An engaging member movable between an engageable position capable of engaging with the rotation member and an engagement impossible position incapable of engaging to prevent the rotation member, and between the transmission member and the engaging member. And a holding member that holds the engagement member in the non-engageable position when the transmission member is in the non-interlocking position.