JPH0443343B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to a television broadcasting station in which a recorded video cassette is taken out from a cassette storage device and put into a playback device in order to play the recorded video cassette and broadcast it. The present invention relates to a cassette feeding mechanism used in a mounting system.

BACKGROUND TECHNOLOGY AND PROBLEMS When playing recorded video cassettes and broadcasting them at a television broadcasting station, as shown in FIG. It is equipped with a plurality of stacked playback devices 20 and a cassette feeding device 30 disposed between them, and the cassette feeding device 30 consists of an elevator 31 for lifting and lowering the cassettes 1 and its driving means (not shown). Two cassette storage sections 32 and 33 are provided, and the cassette 1 is taken from the shelf 11 of the cassette storage device 10 into the cassette storage section 32 of the elevator 31 and placed in the designated position of the playback device 20 by raising and lowering the elevator 31. The cassette is transported and sent from the cassette storage section 32 to the cassette mounting section 21 of the playback device 20, and when the playback is completed, it is transferred from the cassette mounting section 21 of the playback device 20 to the cassette storage section 3 of the elevator 31.
3, transported to the original shelf 11 in the cassette storage device 10 by an elevator 31, and sent back to the shelf 11 from the cassette storage section 33.

In this case, the cassette storage device 10 for the cassette 1
A cassette feeding mechanism provided in the elevator 31 takes in the cassettes from the elevator 31 and sends the cassettes from the elevator 31 to the reproducing device 20 . This cassette feeding mechanism is mainly composed of a rotating arm that is rotated by a motor, and this rotating arm moves the right side wall of the cassette 1 into the first position in FIG.
Remove cassette 1 by pushing to the left in the illustration.
is sent from the cassette storage device 10 to the elevator 31, and from the elevator 31 to the playback device 20.

In that case, the cassette storage device 10 of the cassette 1
If one rotary arm is used to feed from to the elevator 31 and from the elevator 31 to the reproduction device 20, only one motor is required to drive the rotary arm, and the manufacturing cost of the feed mechanism is reduced. However, since the stroke of the rotating arm becomes large, the fulcrum of the rotating arm must be moved considerably away from the path of movement of the cassette 1, which increases the space occupied by the feeding mechanism and reduces the space available for the feeding mechanism. There is a disadvantage that the weight of the provided elevator 31 increases. On the other hand, if the cassettes 1 are sent from the cassette storage device 10 to the elevator 31 and from the elevator 31 to the playback device 20 using separate rotary arms, the stroke of each rotary arm will be reduced. Because of this, the fulcrum of each rotating arm can be brought relatively close to the path of movement of the cassette 1, and the space occupied by the feeding mechanism can be reduced, and the weight of the elevator 31 on which the feeding mechanism is installed can be reduced. In this case, when the two rotating arms are driven by separate motors, the motors can be
Since the number of feed mechanism is required, there is an inconvenience that the manufacturing cost of the feeding mechanism increases.

Purpose of the Invention In view of the above, the present invention provides a system in which the feeding of the cassette from the first position to the second position and from the second position to the third position is selectively carried out by one motor. It is an object of the present invention to provide a cassette feeding mechanism that can reduce manufacturing cost, size, and weight by rotating a separate rotating arm. shall be.

Summary of the Invention A cassette feeding mechanism according to the present invention includes a motor,
first and second rotating pairs rotationally coupled to the motor so as to be rotated in opposite directions by the motor; first and second rotating arms for cassette feeding; The first and second rotating bodies are respectively provided with first and second transmission means for respectively transmitting the rotational force of the rotating body to the first and second rotation arms to rotate the first and second rotation arms, respectively; The rotating cassette is moved from the first position to the second position by the rotational force of the first rotating body of the rotating arm.
The cassette is sent from the second position to the third position by rotation due to the rotational force of the second rotating body of the second rotating arm. By doing so, the manufacturing cost can be reduced, the size can be reduced, and the weight can be reduced.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 2 shows an example of the cassette feeding mechanism according to the present invention installed in the system as described above.
A cassette feeding mechanism as described below is provided on the base plate 34 of the elevator 31 of the cassette feeding device 30, on which the aforementioned cassette storage section 32 is provided.

That is, the motor 41 and the motor 4 are mounted on the board 34.
1 rotation is transmitted through the belt 42
A gear 44 as a first rotating body meshing with the gear 3;
Gear 45 that also meshes with gear 43, and gear 45
A gear 46 is provided as a second rotating body that meshes with the motor 41, and the counterclockwise rotation of the motor 41 causes the gear 43 to rotate counterclockwise, the gears 44 and 45 to rotate clockwise, and the gear 46 to rotate counterclockwise. death,
Conversely, by clockwise rotation of the motor 41, the gear 4
3 is clockwise, gears 44 and 45 are counterclockwise,
The gear 44 as a first rotating body and the gear 46 as a second rotating body are rotated in opposite directions by the motor 41, such that the gear 46 rotates clockwise. Further, first and second rotating arms 47 and 48 are provided which can rotate about the rotation centers of gears 44 and 46, respectively.
Projections 49 and 50, which push against the side walls of the cassette 1, are integrally formed at the free ends of the cassettes 8, respectively. Rotating arm 4
7 stores the cassette 1 on a shelf 11 of the cassette storage device 10.
From the cassette storage section 3 on the board 34 of the elevator 31
The rotary arm 48 transports the cassette 1 from the cassette storage section 32 on the board 34 of the elevator 31 to the cassette mounting section 21 of the playback device 20.
It is for sending to. These rotating arms 47
and 48 are urged counterclockwise by springs 51 and 52, respectively, so that the protrusions 49 and 50 at the free ends abut against stoppers 53 and 54 on the base plate 34, respectively. And gears 44 and 46
are integrally formed with protrusions 55 and 56 as first and second transmission means, respectively, and as shown in FIG.
When the gears 44 and 46 rotate clockwise due to the counterclockwise and clockwise rotation of the motor 41, respectively, from the position where they abut on the gears 4 and 48,
The clockwise rotational force of 4, 46 is applied to the rotating arm 47,
48 are transmitted to the rotating arms 47, 48, respectively.
are rotated clockwise against the forces of springs 51 and 52, respectively. Note that the board 34
At the top, a switch 57 detects when the protrusions 49 and 50 at the free ends of the rotating arms 47 and 48 are in contact with the stoppers 53 and 54, respectively.
58, and a switch 59 for detecting when the cassette 1 is stored in the cassette storage section 32. Furthermore, the playback device 20 is provided with a switch 22 that detects when the cassette 1 is attached to the cassette attachment section 21.

The operation of an example of the cassette feeding mechanism according to the present invention constructed as described above will be described with reference to FIGS. 3 and 4. In the state before taking the cassette 1 from the shelf 11 into the cassette storage section 32, the rotating arms 47 and 48 are connected to the protrusions 49 and 48, respectively, as shown in FIG.
50 is in a position where it contacts the stopper 53, 54, and the gears 44, 46 are in a position where they are in contact with the protrusion 5, respectively.
5 and 56 are stopped at positions where they abut against rotating arms 47 and 48.

From this state, the motor 41 is rotated counterclockwise, and the cassette storage device 1 is rotated as follows.
The cassette 1 is taken into the cassette storage section 32 of the elevator 31 from the shelf 11 of the elevator 31. That is, the motor 41
is rotated counterclockwise, the gear 44 is rotated clockwise, and the protrusion 55 of the gear 44 is rotated counterclockwise.
rotates the rotating arm 47 clockwise, and the protrusion 49 of the rotating arm 47 pushes the right side wall of the cassette 1 on the shelf 11 to the left in FIG. 11 to the elevator 31, and as shown in FIG.
is stored in. During this time, the gear 46 rotates counterclockwise and the protrusion 56 of the gear 46 moves away from the rotating arm 48, so the rotating arm 48 does not move.

The cassette 1 is placed in the cassette storage section 32 of the elevator 31.
When the motor 41 is retracted, this is detected by the switch 59, and the motor 41 is rotated in the opposite clockwise direction. When the motor 41 is rotated clockwise, the gear 44 rotates counterclockwise together with the protrusion 55, and accordingly, the rotating arm 47 also rotates counterclockwise by the force of the spring 51, and the gear 44 rotates counterclockwise.
and the pivot arm 47 returns to the position shown in FIG. When the pivot arm 47 returns to the position shown in FIG. 2, this is detected by the switch 57 and the motor 41 is stopped. During this time, the gear 46 rotates clockwise, and the protrusion 56 of the gear 46
When the rotating arm 48 approaches the rotating arm 48 and the gear 44 and rotating arm 47 return to the position shown in FIG. 2, the gear 46 also returns to the position shown in FIG. 2 where the projection 56 abuts the rotating arm 48.

When the cassette feeding mechanism on the board 34 returns to the state shown in FIG. 2 and this is confirmed by the switch 57, the cassette storage section 3
2, the elevator 31 storing the cassette 1 is moved to the designated position of the playback device 20. When the elevator 31 comes to the designated position of the playback device 20, the motor 41 is rotated clockwise, contrary to the case when the cassette 1 is taken into the elevator 31 from the cassette storage device 10, as follows. The cassette mounting section 2 of the playback device 20 to which the cassette 1 is designated from the cassette storage section 32 of the elevator 31
1 is sent out. That is, by rotating the motor 41 clockwise, the gear 46 rotates clockwise, and the protrusion 56 of the gear 46 engages the rotating arm 4.
8 clockwise, the protrusion 50 of the rotating arm 48 pushes the right side wall of the cassette 1 stored in the cassette storage section 32 to the left in FIG. Storage section 32
From there, it is sent to the playback device 20 and loaded into the cassette loading section 21 as shown in FIG. During this time, the gear 44 rotates counterclockwise, and the protrusion 5 of the gear 44
5 moves away from the rotating arm 47, so the rotating arm 47 does not move.

The cassette 1 is attached to the cassette mounting section 2 of the playback device 20.
1, this is detected by the switch 22 and the motor 41 is caused to rotate counterclockwise. When the motor 41 is rotated counterclockwise, the gear 46 rotates counterclockwise together with the protrusion 56, and the rotating arm 48 rotates accordingly.
The gear 46 and the pivot arm 48 are rotated counterclockwise by the force of the spring 52, and the gear 46 and the pivot arm 48 return to the position shown in FIG. When the pivot arm 48 returns to the position shown in FIG. 2, this is detected by the switch 58 and the motor 41 is stopped. During this time,
The gear 44 rotates clockwise, and the protrusion 5 of the gear 44 rotates clockwise.
5 is approaching the rotating arm 47, and the gear 46
When the rotating arm 48 returns to the position shown in FIG.
2 to the position shown in FIG.

Effects of the Invention As is clear from the above description, the cassette feeding mechanism according to the present invention can feed the cassette from the first position to the second position, and from the second position to the third position.
Since the feeding to the position is performed by a separate rotating arm that is selectively rotated by a single motor, manufacturing costs can be reduced, the size can be reduced, and the weight can be reduced. Can be made smaller.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an example of a system equipped with a cassette feeding mechanism, and FIG. 2 is a configuration diagram showing an example of the cassette feeding mechanism according to the present invention together with a cassette feeding device, a cassette storage device, and a playback device equipped with the same. 3, 3, and 4 are diagrams used to explain the operation of the example shown in FIG. 2. In the figure, 41 is a motor, 44 and 46 are gears as first and second rotating bodies, and 47 and 48 are first
The second rotating arms 55 and 56 are protrusions serving as first and second transmission means.

Claims (1)

[Claims] 1 a motor; first and second rotating bodies each rotationally coupled to the motor so as to be rotated in opposite directions by the motor;
first and second rotating arms for feeding the cassette;
The first rotary body is provided in the first and second rotary bodies, respectively, and when the first and second rotary bodies rotate in one direction within a certain range due to normal rotation and reverse rotation of the motor, the first and first and second transmission means for respectively transmitting the rotational force of the second rotating body to the first and second rotation arms to rotate the first and second rotation arms, respectively. The cassette is moved from the first position to the second position by rotation of the first rotating arm due to the rotational force of the first rotating body.
a cassette feeding mechanism configured to send the cassette from the second position to a third position by rotation of the second rotating arm by the rotational force of the second rotating body; .