JPS6138535B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic cassette-type recording tape loading device for automatically loading and unloading a cassette-type recording tape into a tape recorder.

In a cassette type tape recorder (hereinafter simply referred to as a telecoset), it is necessary to automatically inspect the operational functions (electrical performance) of each part of the product. To do this, it is necessary to automatically load a recording tape (hereinafter simply referred to as tape) on which a standard signal has been recorded in advance into the test telecoset.

By the way, suppose that a user of a normal cassette type tape recorder sets the cassette case 20 to hold the cassette type tape recorder 2 attached to the transport pallet 3, as shown in FIG. Insert the reel into the cassette mounting surface diagonally upward (in the direction of arrow C), bring the tip into contact with the leaf spring 2c, rotate it clockwise (in the direction of arrow D), fit the reel shaft 2a, and release the leaf spring 2.
The cassette case guide 2 is moved by the pressing force from c.
Even if the mechanism were to have the same degree of freedom and the same effect as the hand that contacts b and puts it on, it would not only be extremely complicated, but the movement of the final end would have to be controlled to avoid damaging the cassette tape recorder. It is also difficult to regulate with high precision.

The object of the present invention is to eliminate the above-mentioned conventional drawbacks and to provide an automatic cassette-type recording tape system which enables a cassette-type recording tape to be smoothly and automatically loaded into a test cassette-type tape recorder without damage using a simple device. To provide a mounting device.

That is, the present invention provides a movable seat having a holding portion at its tip that holds the cassette case in contact with a ball pressed by a spring so as to be freely rotatable.
The cassette case of the test cassette tape recorder is moved in a straight line from a direction substantially perpendicular to the cassette case mounting surface along the guide, and the cassette provided at one end of the cassette case mounting surface of the cassette tape recorder is A cassette case held in the above-mentioned holder was tested, and the ball was guided by a cylinder toward the case guide and pressed by a spring from the vertical direction, and was configured to move while engaging with the taper and being pressed. This device is characterized in that it is attached to a cassette type tape recorder.

FIG. 2 is a perspective view showing one embodiment of the cassette type automatic recording tape loading device according to the present invention, and FIG. 3 is an arrow view of the tape loading section shown in FIG. FIG. 3 is a partially sectional side view. That is, an air cylinder 5 is placed on the rotating base plate 4, and a moving piece 6 is attached to the tip of a rod 5a of the air cylinder 5. The movable piece 6 can be easily moved by a slide rod 7 according to the horizontal movement of the rod 5a. Further, a sliding movable bed 11 is attached to the slide rod 7, and a coil spring 1 is connected between the movable bed 11 and the movable piece 6.
0 is present.

Next, a cylinder 12 is fixed to the upper part of the movable bed 11, and the legs 13a of the movable seat 13 are fitted into the inside of the cylinder 12. At the same time, the movable seat 13 is attached to the ball 9 on the top surface of the movable piece 6. They are supported in contact with each other and are movable up and down by the coil spring 8 for stability.

Next, in FIG. 2, a cassette case mounting plate 14 is vertically attached to one end of the movable seat 13, and a cylinder 16 containing a coil spring 15 is fixed to the center of the back of the cassette case mounting plate 14. A ball 17 is fitted into one end of the coil spring 15 using a holder. Cassette case 20
is fitted into the front surface of the cassette case mounting plate 14 by a cassette case holding rod 18, a leaf spring 19 and a cassette case holding plate 21. In addition,
The cassette case 20 is inserted or removed by moving the cassette case presser bar 18 in the direction of arrow B.

To describe the operation of the above mechanism, air cylinder 5
When the moving piece 6 moves in the direction shown by the arrow A, the moving bed 1 is moved by the drag force of the coil spring 10.
1. Moving seat 13 and cassette case mounting plate 14
The cassette case 20 inserted into the
The cassette case 20 is inserted into the test telecosset 2. In this case, leaf spring 19
The pressing force is not very strong, so cassette case 2
The cassette case 20 is allowed to tilt around the point of contact with the ball 17, and at the same time can be moved slightly in the vertical direction.
The cassette guide 2b provided at
It fits onto the reel shaft 2a of the telecoset 2 and is pushed upward by the plate spring 2c of the test telecoset 2, allowing it to settle in an accurate position. That is, test telecoset 2
without damaging it by applying abnormal force to it,
The cassette case 20 can be mounted, and there is no member that comes into contact with the test telecoset 2 and becomes an obstacle when the cassette case 20 is mounted, and the cassette can be mounted smoothly.

The above description is based on the case where the test telecoset 2 and the cassette case 20 are facing each other in almost correct positions, but the test telecoset 2 is intermittently transported to this inspection position by the transport means. For this reason, a large number of transport pallets 3 are used. Therefore, there are considerable tolerances in the size of the transport pallet 3 and the positions of the mounting holes of the test telecoset. However, in order to smoothly insert the cassette case 20 despite such tolerances, the moving piece 6, moving bed 11, and moving seat 13 must be
It uses a double movement mechanism.

The holder for holding the cassette case 20 must have a dual movement mechanism capable of moving in the X-axis direction and the Y-axis direction.

When using the above-mentioned double moving mechanism, the tolerance of the above-mentioned transport pallets 3 is investigated in advance, and the cassette case 20 is
The height position of the tape attachment/detachment section 1 is adjusted in advance so that it faces directly. When such adjustments are made,
It is only necessary to consider the case where the height of the test telecosset 2 is higher than the cassette case 20. To describe the operation of the double mechanism in such a state, the cassette case 20 is once brought into close contact with the front surface of the sample cassette telegraph 2 by the operation of the air cylinder 5 (in this case, the cassette case 20 is The fitting hole of 2 is sufficiently large and there is no problem with fitting.
c is also bent significantly so there is no problem with insertion).
However, since there is still enough pressure from the air cylinder 5, the movable piece 6 is pushed in the direction of arrow A, and as a result, the movable seat 13 is pushed up by the action of the taper 13b provided on the movable seat 13. , the upper edge of the cassette case 20 contacts the head of the cassette case guide 2b of the test cassette teleco 2, and the lower edge of the cassette case 20 gets over the leaf spring 2c, but the positional relationship is maintained, and the cassette case 20 is further pressed. The cassette case 20 is pushed down by the inclination of the cassette guide 2b, and the cassette case 20 is installed in the correct position. That is, the cassette case 20 is attached to the test telecoset 2 in the same manner as in the operation shown in FIG. Also, since the upper edge of the cassette case 20 and the cassette guide 2b of the test telecosette 2 are misaligned in the vertical direction, the upper edge of the cassette case 20 comes into contact with the head of the cassette guide 2b, and as the telecosset moves further, Conversely, a taper is provided on the movable seat 13 to prevent the upper edge of the cassette case 20 from being located considerably below the head of the cassette guide 2b and coming into contact with the leaf spring 2c and not moving any further. 13b pushes up the movable seat 13 to absorb the above-mentioned positional deviation, so that the upper edge of the cassette case 20 is always pressed against the inclined surface of the cassette guide 2b.

FIG. 2 is an external perspective view of an embodiment in which the cassette type automatic recording tape loading device of the present invention is applied to an automatic tape recorder inspection station. ,
They are installed facing each other at 180°. Rotating board 4
is rotated by a rotation mechanism consisting of a motor 22, a gearbox 23 and a clutch 24 located at the bottom. A pulse motor is suitable for the motor 22 because it rotates with good angular accuracy. On the other hand, the test telecoset 2 is attached in advance to the transport pallet 3 and is transported by the transport rail 25. Further, a push button operation mechanism 26 is provided for operating the push buttons necessary for the inspection items to be performed at this inspection station, and a signal output mechanism 27 is provided for outputting an electric signal. Further, a tape rewinding mechanism 28 is placed on the opposite side of the rotating board 4.

Next, the operational functions of the cassette-type recording tape automatic loading device will be explained. This device is sequence-controlled in the entire tape recorder automatic inspection device, and the test telecoset 2 is
When the telecoset 2 stops at a predetermined position, the cassette case 20 is inserted into the test telecoset 2 by the above-described operation, the push button operation mechanism 26 is activated, the test telecoset 2 starts operating, and the signal output mechanism 27 outputs the signal to be measured. The desired electrical signal is extracted. Upon completion of the test, the cassette case 20 is removed from the test telecoset 2 and waits for the next test telecoset 2. When a predetermined number of telecosettes have been inspected in this way, the tape in the cassette case 20 is nearing its end, so the motor 22
Driving power is supplied to rotate the rotary substrate 4 by 180 degrees, the other tape attachment/detachment section supplies the tape, and the finished tape is rewound by the tape rewinding mechanism 28. It goes without saying that all of the above operating processes are performed at the same timing within the overall sequence control described above, but it is necessary that each of the cassette telecoms 20 under test be operated in a short time of several seconds or less. The weight has been reduced as much as possible through the selection of materials and design of the dimensions of each component, and the accurate and quick operation has been achieved by appropriately adjusting the springs of each part and designing the appropriate value of the air pressure supplied to the air cylinder. The above operating time has been fully achieved.

As explained above, according to the present invention, the holding part is configured to be able to rotate slightly, and a double moving mechanism is adopted, so that a cassette case containing a recording tape can be easily attached to a test cassette type tape recorder. As a result, it is possible to smoothly and automatically attach the device.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a conventional manual method for mounting a cassette case on a sample cassette-type tape recorder, and Fig. 2 is a perspective view showing an embodiment of the automatic cassette-type recording tape mounting device of the present invention. Figure, 3rd
The figure is a partial side view of FIG. 2. Explanation of symbols 1... Tape attachment/detachment part, 2... Test telecoset, 2a... Reel shaft, 2b... Cassette case guide, 2c... Leaf spring, 3... Transport pallet, 5... Air cylinder, 6... ...moving pieces,
7... Slide rod, 8, 10, 15... Coil spring, 9, 17... Ball, 11... Moving floor, 1
2, 16...Cylinder, 13...Moving seat, 14...
...Cassette case mounting plate, 18...Cassette case presser bar, 19...Plate spring, 20...Cassette case, 21...Cassette case presser plate.

Claims (1)

[Claims] 1. A moving bed and a moving piece supported so as to be rotatable linearly in a horizontal direction along a guide provided on a board are provided, and a drive source for linearly moving the moving piece is provided on the board. A first spring is interposed between the movable bed and the movable piece, and the central portion of the cassette case is pressed by the second spring so that the cassette case can be slightly rotated about the central portion. A movable seat having a retained holding part at its tip is slidably supported on the movable bed, and when a horizontal pressing force is applied to the held part, the first spring is compressed and the moving piece is moved. A taper cam is provided between the upper end of the movable piece and the lower end of the movable seat and operates to raise the movable seat by a third spring when the movable seat is moved relative to the seat, and the drive source is driven to move the holding portion. A cassette case guide having an inclined surface provided at the upper end of the cassette case mounting part that approaches the cassette case mounting part of the test cassette type tape recorder in a straight line and bringing the upper end of the cassette case held by the holding part to the upper end of the cassette case mounting part. An automatic cassette-type recording tape loading device characterized in that the cassette-type recording tape automatic loading device is configured to load a cassette-type recording tape onto a test cassette-type tape recorder while pressing the cassette case against the cassette-type tape recorder.