JPH0475588B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a magnetic tape cassette device.

Structure of the conventional example and its problems In a conventional magnetic recording and reproducing apparatus having an automatic loading device for magnetic tape cassettes (hereinafter simply referred to as cassettes), when the cassette is pressed only on the rear part of the supply side and the cassette is pushed to one side, the cassette is In order to ensure that the lid release pin can be released reliably, the cassette insertion amount regulating claw closer to the supply side reel stand is positioned a predetermined distance closer to the cassette insertion direction than the regulating claw closer to the take-up side reel stand. was. The purpose of releasing the cassette lid release pin by pushing the cassette on one side was achieved, but since the cassette moved to the specified position while being tilted, it did not align with the cassette positioning pin installed in the base, and the cassette was not properly opened. It has the disadvantage that it cannot be mounted in the correct position.

OBJECT OF THE INVENTION The present invention solves the above-mentioned drawbacks by inserting the cassette at an angle so that the front part on the winding side of the cassette does not come into contact with the cassette insertion claw on the winding side of the cassette holder, and furthermore, only the rear part on the supply side of the cassette is inserted. When pushing in, the cassette lid release pin is pressed by the cassette lid release member, allowing the cassette lid to open and tilting the cassette on its way from the top dead center to the bottom dead center. To provide a cassette mounting device which allows an inserted cassette to return to its normal state and is mounted on a reel stand in its normal state.

Structure of the Invention In order to achieve the above object, the cassette loading device of the present invention has two cassette insertion amount regulating claws provided on a cassette holder, one of which is closer to the tape supply reel, for tape winding. The cassette insertion amount regulating claw that is closer to the reel on the retrieving side is set so as to be shifted in the cassette insertion direction by a predetermined dimension, and at the same time, the cassette that has been inserted at an angle is adjusted to the normal position in the process from top dead center to bottom dead center. This configuration includes a cassette return member for correcting the direction.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below based on the drawings. In FIGS. 1 to 4, a cassette holder 1 holds a cassette 2, and is movable by a moving means 4 between a cassette insertion position and a cassette operating position on a reel stand 3. That is, rod-shaped projections 5 are installed on both sides of the cassette holder 1, and L-shaped guide grooves 7 are formed in a pair of left and right side plates 6 arranged on both sides of the cassette holder 1.
The protrusion 5 is movably engaged with the protrusion 5, and a rotary lever 9 is rotatably attached to the outer side of the pair of side plates 6 via a shaft 8 as shown by arrows A and B. The protrusion 5 is movably engaged with a long hole 10 formed in the rotary lever 9. Therefore, the rotary lever 9 is rotated by a drive device (not shown).
When the cassette holder 1 is rotated in the directions of arrows A and B, the cassette holder 1 is moved between the cassette insertion position and the cassette operating position. The guide groove 7 consists of a horizontal portion 7a and a vertical portion 7b, so that the cassette holder 1 moves horizontally from the cassette insertion position to a position above the reel stand 3, and then descends onto the reel stand 3. Reference numeral 11 denotes a mounting plate provided on the upper surface of the pair of left and right side plates 6. A front lid lock release pin 2b for unlocking the front lid 2a is provided on the right side of the cassette 2. When the cassette 2 is inserted into the cassette holder 1, the front lid lock release pin 2b locks the front lid 2a. The lock pin release piece 1c attached to the right side surface of the front cover 2a is pushed in, and the front cover 2a is unlocked. Furthermore, when the cassette holder 1 descends toward the reel stand 3, the lower end of the cassette lid 2a comes into contact with the inclined surface 12a of the lid opening lever 12, and the cassette lid 2a opens in the direction of arrow c, allowing the reel stand 3 to be placed in its proper position. The cassette 2 is installed in this position.

As shown in Fig. 4, when cassette 2 is inserted into cassette holder 1 and only the black colored part of cassette 2 is pushed in in the direction of arrow D, the right front end of cassette 2 will be inserted into the cassette insert provided in cassette holder 1. Therefore, the front lid lock pin 2b is not released by the lock pin release piece 1c, and when lowering, the lid opening lever 12
The lid 2a remains in contact with the lid 2a and cannot be moved.

Therefore, in the present invention, as shown in FIGS. 5 and 6, if the cassette insertion amount regulating claw 1a provided on the cassette holder 1 is shifted by a predetermined amount with respect to 1b as shown in FIG. Even if you push only the black part × in the direction of arrow D, the lock release piece 1 will not work.
c presses the front lid lock release pin 2b, so the lid is opened by the lid opening lever 12 and the cassette 2 can be moved to the operating position. However, although the cassette can be lowered, since the cassette 2 is lowered in an inclined state, it may not be fitted into the reel stand 3 and may be lowered. As shown in FIGS. 6 to 8, the cassette 2 is inserted into the cassette holder 1 in an inclined state in FIG. 7. In this state, the cassette holder starts to move horizontally, and at a position just before the end of the horizontal movement, the cassette installed in the bent portion 30 of the mounting plate 11 is moved as shown in [Fig. 6] and [Fig. 8]. The distal end of the cassette comes into contact with the return member 31, and the cassette 2, which was inserted at an angle before the vertical movement of the cassette holder 1, returns to its normal position. After the return of the cassette position is completed, the cassette holder 1 moves vertically and reaches the cassette operating position above the reel stand 3.

Effects of the Invention As described above, according to the present invention, the cassette can be inserted even if the cassette is pushed in to the extreme end, and at the same time, the cassette can be inserted at an angle during the process of reaching the operating position. By correcting the direction of the cassette, proper mounting can be ensured.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the main parts of an embodiment of the cassette mounting device of the present invention, Fig. 2 is a side view of the main parts showing the same operation, and Figs. 3 and 4 are plan views showing a conventional cassette holder. 5 is a plan view of a cassette holder in an embodiment of the cassette mounting device of the present invention, FIG. 6 is a side sectional view showing the main parts of the embodiment, and FIGS. 7 and 8 are plan views of the same. It is. DESCRIPTION OF SYMBOLS 1...Cassette holder, 2...Cassette, 3...Reel stand, 4...Movement means, 6...Side plate, 11...Mounting plate, 31...Cassette return member, 1a, 1b...Cassette insertion amount regulating claw.

Claims (1)

[Claims] 1. A cassette holder that is guided by guide grooves formed in a pair of left and right side plates and is movable between a cassette insertion position and a cassette operating position above the reel stand, and the cassette holder is moved between the two positions. and two cassette insertion amount regulating claws that are integrally provided with the cassette holder and that come into contact with both ends of the front surface of the tape cassette inserted into the cassette holder to regulate the insertion position of the tape cassette. and a cassette lid release member that comes into contact with a front lid lock release pin provided on one side of the tape cassette whose insertion position is regulated by the cassette insertion amount regulating claws, the two cassette insertion amount regulating claws a fixing member on which the pair of left and right side plates is mounted, the cassette insertion amount regulating claw which is farther from the front lid lock release pin being shifted in the cassette insertion direction side from the other cassette insertion amount regulating claw; A cassette mounting device comprising a cassette position correcting member.