JPH048524Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to a cartridge loading mechanism that pushes out a predetermined cartridge from a box containing a plurality of cartridges containing magnetic tape and stores it in a magnetic tape device.

(b) Prior Art and Problems Figure 1 is a cutaway view of a box that stores a plurality of cartridges, and the box 1 has an opening 3 for taking in and out the cartridge 2 containing magnetic tape, and an opening 3 for pushing the cartridge 2 in and out. A slit 4 for taking out the cartridges is provided, and a plurality of cartridges 2 are housed therein.

Conventionally, a cartridge loading mechanism is shown in FIG. 2, which includes a transfer means for pushing out a predetermined cartridge from a box 1 shown in FIG. The structure is as shown in the figure below.

FIG. 2 is a perspective view showing the structure of a conventional cartridge loading mechanism, and the cartridge loading mechanism is composed of transfer means 5 symmetrically provided on both sides of a box 1. This transport means 5
operates in the same manner at the same speed on both the left and right sides, and the configuration of only one side will be explained below.

The transfer means 5 includes a motor 6, a pinion 7 rotated by the motor 6 and having predetermined teeth, and a pinion 7.
Rack 8 with linear teeth that mesh with the teeth of
and an L-shaped arm 9 attached to one side of the rack 8, and the rack 8 is held on a rail so as to be able to slide back and forth. Also, in order to limit the movement range of the rack 8, sensors 11a and 11
b is provided, and the rack 8 has a cutting board 12.
is provided. This thin plate 12 is the sensor 1
It cuts off the light emitted from the light emitting elements 1a and 11b toward the light receiving element, so that while the rack 8 is being moved by the rotation of the motor 6, the shield plate 12 cuts off the light emitted from the sensors 11a and 11b. By cutting off the element and the light receiving element, the motor 6
rotation is stopped. The mounting position of the sensor 11a is set so that the rack 8 stops when the cartridge 2a is stored in the magnetic tape device.
The mounting position of the sensor 11b is set so that the rack 8 stops when the arm 9 completely comes out of the box 1 while the rack 8 is moving in the direction of arrow b.

With this configuration, the box 1 is moved in the vertical direction by a vertical transfer means (not shown), and a predetermined cartridge 2a is aligned with the position of the arm 9. here,
By rotating the motor 6, the pinion 7 is rotated, and the rack 8 meshed with the pinion 7 is slid along the rail 10 in the direction of arrow a. Then, the cartridge 2a is pushed out of the box 1 by the arm 9 and accommodated in the cartridge holder 14 in the magnetic tape device 13, and the light emitting element and the light receiving element of the sensor 11a are separated by the shear cutting plate 12. , the rotation of the motor 6 is stopped and the rack 8 is stopped. Also, by rotating the motor 6 in the reverse direction at this position, the rack 8 is slid along the rail 10 in the direction of arrow b, and when the arm 9 is completely out of the box 1, the bow plate 12 The light emitting element and the light receiving element of the sensor 11b are immediately disconnected, and the rack 8 stops. This causes the rack 8 to return to its original position as shown in FIG.

It should be noted that a mechanism for returning the cartridge housed in the magnetic tape device 13 to the box 1 is separately provided in the magnetic tape device 13, and its explanation will be omitted.

By repeating the above operations, the cartridges housed in the box 1 can be arbitrarily housed in the magnetic tape device 13.

However, in this conventional configuration, since the rack 8 moves linearly, the rack 8 cannot be stopped if the sensors 11a and 11b fail or the sheath plate 12 breaks. In addition, since the motor 6 is rotated in two directions, forward and reverse, and the rack 8 is reciprocated, the drive control of the motor 6 is difficult. It had drawbacks such as being complicated.

(c) Purpose of the invention The present invention has been devised in view of the above-mentioned drawbacks of the conventional technology, and it is possible to easily control the drive of the loading mechanism without damaging the cartridge loading mechanism or the magnetic tape device. The object of the present invention is to provide a cartridge loading mechanism that can perform the following steps.

(d) Structure of the invention In order to achieve the above-mentioned object, the present invention provides a cartridge transfer means that pushes out a predetermined cartridge from a box containing a plurality of cartridges containing magnetic tape and stores it in a magnetic tape device. The cartridge transfer means, which is a gero-loading mechanism, includes a pressing part 23 that presses the cartridge, and swinging members 22 and 24 that can swing around a rotation axis so that the pressing part 23 reciprocates. , 26 and the swinging members 22, 2
4, 26, and the swinging members 22, 24, 2
a member 29 for applying a rocking force to the member 6; a rotational drive means 25 for eccentrically rotating the member 29;
28, and means 30 for transmitting the moving force of the member 29 eccentrically rotated by the rotation drive means 25, 28 to the swinging members 22, 24, 26.
By the rotational operation of the rotational driving means 25 and 28, the member 29 is moved to the swinging member 2.
2, 24, and 26 in the radial direction of the rotating shaft, the swinging force is applied to the swinging members 22, 24, and 26. be.

(e) Preferred embodiments of the invention Below, preferred embodiments of the invention will be described in detail with reference to the drawings.

FIG. 3 is a schematic diagram showing an embodiment of the cartridge loading mechanism according to the present invention.

In the figure, the cartridge loading mechanism includes transfer means 21 symmetrically provided on both sides of the box 1.
It consists of a box 1 and a magnetic tape device 1.
3 is disposed inside the housing 20. The arms 22 and 22' that push out a predetermined cartridge from the box 1 are L-shaped.
Rubber rollers 23 and 23' are rotatably attached to the ends of the rolls 22', respectively, so as not to damage the cartridges when pushing them out.
The arms 22 and 22' each have an arm shaft 24,
24', and the arms 22, 22' are stopped at a standby position completely exposed from the box 1.

Arms 22 and 2 are driven by the drive operation of the drive unit.
The cam mechanism that operates the arms 22 and 2' operates the arms 22 and 2 by the unidirectional driving operation of the drive unit, as will be described in detail later.
2' is configured to perform reciprocating movement from the position shown in FIG. 3 to the position shown in FIG. 3 after storing the cartridge in the magnetic tape device 13 as shown in FIG.

This cam mechanism allows the arms 22, 22' to rotate counterclockwise within a predetermined range around the arm shafts 24, 24', for example, from the standby position shown in FIG. 3 to the cartridge storage completion position shown in FIG. The arm 22' is rotated clockwise through a range of 90 degrees. Also, arm 22 and arm 2
2' are similarly operated in opposite directions and at the same speed.

With this structure, the box 1 is moved up and down by a not-shown up-and-down transfer means, that is, in a direction perpendicular to the plane of the paper of FIG. 3, and a predetermined cartridge 2b is aligned with the position of the arms 22 and 22'. The arms 22 and 22' are rotated 90 degrees counterclockwise and clockwise around the arm shafts 24 and 24', respectively, from the standby position shown in FIG. 2
A predetermined cartridge 2b is pushed out from the box 1 by 2' and accommodated in a cartridge holder 14 in the magnetic tape device 13 as shown in FIG. Thereafter, the arms 22 and 22' are rotated 90 degrees clockwise and counterclockwise about the arm shafts 24 and 24', respectively, from the housing completion position shown in FIG. 4, and return to the standby position shown in FIG. 3.

It should be noted that a mechanism for returning the cartridge accommodated in the magnetic tape device 13 to the box 1 is provided separately in the magnetic tape 13, and its explanation will be omitted. By repeating this operation, the cartridges housed in the box 1 can be arbitrarily housed in the magnetic tape device 13. Here, the structure of the transfer means 21 will be explained in detail.

FIG. 5 is a perspective view showing the structure of the cartridge loading mechanism shown in FIG. 3, showing only one side of the transfer means 21 provided on both sides of the box 1. In the figure, the transfer means 21 is an arm 22
The cam mechanism 25 includes an arm shaft 24, a crank 26, and a disc 27. The disk 27 is rotated around the center of the disk 27 by a motor 28, and a cylindrical pin 2 is provided on the disk 27 near the outer periphery.
9 is fixed. Pin 29 on crank 26
A groove 30 having a width such that the pin 29 can be slid therein is formed, and the pin 29 is fitted into the groove 30 so as to be slidable therein.

Both ends of the arm shaft 24 are connected to the arm 22 and the crank 2.
6, arm 22, arm shaft 2
4 and the crank 26 move together, and the arm shaft 24 is held by a bearing (not shown) fixed to the housing 20 so as to be rotatable only about the shaft. The cam mechanism 21 is provided with a sheath plate 31 on the lower surface of the disk 27 and a sensor 32 inside the housing 20, for example, in order to control the drive of the arm 22. The mounting position of the shield plate 31 is such that when the arm 22 is in the standby position shown in FIG. The motor 28 is set so that the motor 28 can be stopped.

Here, as an example of the reciprocating movement of the arm 22, the arm 22 moves as shown in FIGS. 3 and 4.
FIG. 6 shows an arrangement configured to reciprocate within a range of 90 degrees around the arm shaft 24.

FIG. 6 is a diagram showing an example of the reciprocating motion of the arm 22, and the circumference 33 represents the locus drawn by the center of the pin 29 when the disc 27 shown in FIG. 5 is rotated by the motor 28.

The arm shaft 24 is supported by a bearing such that its center is located on the intersection of tangents to the circumference 33 at two adjacent points h and j of the points obtained by dividing the circumference 33 into four equal parts.

Points i and k are the respective midpoints of two arcs of the circumference 33 defined by points h and j,
22h, 22i, 22j, and 22k represent the positions of the arm 22 when the center of the pin 29 is located at points h, i, j, and k, respectively. Arm 22
The position of h corresponds to the position of arm 22 shown in FIG. 3, and the position of arm 22j corresponds to the position of arm 22 shown in FIG.

As a result, the arm 22 is rotated 90 degrees counterclockwise around the arm shaft 24 while the center of the pin 29 is rotated 270 degrees counterclockwise from the position of point h to the position of point j. While the center is rotated 90 degrees counterclockwise from point j to point h, the arm axis 2
Rotated 90 degrees clockwise around point 4.

In this way, the transfer means 21 shown in FIG.
The arms 22 and 2 are provided symmetrically on both sides of the
By similarly operating the arms 2' in opposite directions at the same speed, the arms 22 and 22' are first rotated by the rotation of the motor in one direction, as shown in FIGS. 3 and 4. point h to point
By moving 270 degrees to j', the cartridge 26 is moved forward by 90 degrees in opposite directions about the arm axes 24 and 24', and the cartridge 26 is housed in the magnetic tape device 13. Subsequently, by moving the disk 27 in the same direction, that is, by 90 degrees from point j' to point k and back to point h, arms 22 and 22' are moved in opposite directions.
Since the arms 22 and 22' are moved back by 90 degrees, they are quickly returned to the position indicated at 22h.

As described above, in the cartridge loading mechanism of the present invention, the arms 22 and 22' reciprocate within a predetermined range by driving the motor 28 in only one direction.
Even if the arms 22 and 22' are not stopped, the cartridge loading mechanism and the magnetic tape device will not be damaged, and the motor 28 only needs to be driven in one direction.
2 and 22' need only be stopped at one location, which facilitates drive control.

In the present invention, as described above, the transfer means 21 shown in FIG. 5 are provided symmetrically on both sides of the box 1, and the arms 2
2 and 22' may be similarly operated in opposite directions at the same speed.
In order to move arms 2 and 22' in the same way in opposite directions at exactly the same speed, a single motor is used to move arm 2
FIG. 7 shows an example of a structure in which 2 and 22' are linked together.

FIG. 7 is a front view showing another embodiment of the present invention, and parts given the same reference numerals as in FIG. 5 indicate equivalent functions. In the figure, the arms 22 and 22' and the cam mechanisms 25 and 25' have the same function, and are symmetrically provided on both sides of the box 1, as shown in FIG. Gears 34 are attached to the disc 27 so that their centers coincide with each other, and the disc 27 and the gear 34 are rotated in the same direction by a motor 28.
A gear 35 meshes with the gear 34, and the gear 3
Pulleys 36 are attached to the pulleys 5 so that the centers of the pulleys 36 coincide with each other. A pulley 38 is attached to the disc 27' via a shaft 37 so that their centers coincide, and the pulley 36 and pulley 38
A belt 39 is looped around the belt.
Further, arms 22 and 22' are attached to the side wall of the shaft 37.
A sheath plate 31 is attached to stop the blade at a predetermined position, and a sensor 32 is fixed in correspondence with this sheath plate 31.

With this configuration, when the motor 28 is rotated, the disk 27 and the gear 34 are rotated in the same direction as the motor 28, and the gear 35 is rotated in the opposite direction to the motor 28 due to meshing with the gear 34.

As a result, the disc 27' is connected to the motor 2 through the pulley 36, belt 39, pulley 38, and shaft 37.
The arms 22 and 22' are reciprocated in the opposite direction within a predetermined range around the arm shafts 24 and 24', respectively, by the rotation of the discs 27 and 27'. Figure 5 and 6
This is the same as explained in the figure.

According to this configuration, for example, the gear 34 and the gear 35
By making the number of teeth the same and the size of the pulley 36 and pulley 38 the same, it is possible to easily and accurately move the arm 22 and the arm 22' in the same manner in opposite directions at the same speed. .

(f) Effects of the invention As explained in detail above, according to the cartridge loading mechanism according to the invention, the arm is configured to reciprocate within a predetermined range by driving the drive unit in one direction. Even if the arm is not stopped, the cartridge loading mechanism and the magnetic tape device will not be damaged, and the drive unit only needs to be driven in one direction, and the arm can only be stopped in one place. This makes it possible to simplify drive control.

[Brief explanation of drawings]

Figure 1 is a cutaway view of a box that stores multiple cartridges, Figure 2 is a perspective view showing the structure of a conventional example, Figure 3 is a schematic diagram showing an example of the present invention, and Figure 4 is shown in Figure 3. A schematic diagram when a cartridge is mounted on a magnetic tape device by a cartridge loading mechanism, Figure 5 is a perspective view showing the structure of the cartridge loading mechanism shown in Figure 3, and Figure 6 shows the reciprocating movement of the arm. FIG. 7 is a front view showing another embodiment of the present invention. In the figure, 1 is a box, 2 is a cartridge, 3 is an opening, 4 is a slit, 13 is a magnetic tape device, 2
1 is a transfer means, 22 is an arm, 24 is an arm shaft,
25 is a cam mechanism, 26 is a crank, 27 is a disc,
28 is a motor, 29 is a pin, 30 is a groove, 34 is a gear, 35 is a gear, 36 is a pulley, 37 is a shaft, 38
is a pulley, and 39 is a belt.

Claims (1)

[Claims for Utility Model Registration] A cartridge loading mechanism comprising a cartridge transporting means for pushing out a predetermined cartridge from a box storing a plurality of cartridges containing magnetic tape and storing the cartridge in a magnetic tape device, the cartridge transporting mechanism comprising: The means includes a pressing part 23 for pressing the cartridge, and the pressing part 23 reciprocates.
Swinging members 22, 24, 2 that can swing around the rotation axis
6, a member 29 that engages with the swinging members 22, 24, 26 and applies swinging force to the swinging members 22, 24, 26; and a rotational drive means 2 that eccentrically rotates the member 29.
5, 28, and the moving force of the member 29 eccentrically rotated by the rotation driving means 25, 28 is transferred to the swinging member 2.
2, 24, 26, and the rotational movement of the rotational drive means 25, 28 causes the member 29 to be moved to the swinging members 22, 24, 26.
By reciprocating the swinging members 22, 2 in the radial direction of the rotating shaft along the
A cartridge loading mechanism characterized by: 4, 26 being configured to apply rocking force.