JPH10162459A - Magnetic tape device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correct slanting insertion of a tape cassette when this tape cassette is slantingly inserted into the device to mount on a receiving base. SOLUTION: This magnetic tape device has the tape cassette insertion receiving base 2 disposed reciprocatively movably back and forth between a cassette inserting position A and a cassette mounting position B, and by inserting the tape cassette T into the cassette inserting position A where the receiving base 2 is on stanby to receive the cassette, the receiving base 2 is retreated somewhat in the direction of (a), and based on a detection signal for detecting this retreat, the receiving base 2 is retreated into the cassette mounting position B in the direction of (a), and then based on a tape cassette take-out signal, the receiving base 2 mounted with the cassette in the cassette mounting position B is advanced into the cassette inserting position A in the direction of (b). For this purpose, an interlocking press mechanism 4 is provided for the purpose of pressing the inserted tape cassette T to the receiving base 2 in its moving direction in interlocking with the movement of the receiving base 2 back and forth.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic tape device capable of reliably inserting and removing a cassette.

[0002]

2. Description of the Related Art A magnetic tape apparatus of this kind has a tape cassette receiving table which is reciprocally movable between a cassette inserting position and a cassette mounting position in a front-rear direction, and stands by at the cassette inserting position. By inserting the tape cassette into the receiving tray, the receiving tray is slightly retracted, and the receiving tray is retracted to the cassette mounting position based on a detection signal for detecting the tape cassette. The receiving table mounted at the cassette mounting position is advanced to the cassette inserting position.

The conventional magnetic tape device does not have a function of pressing a tape cassette inserted into the receiving table in the moving direction of the receiving table in conjunction with the reciprocating movement of the receiving table.

[0004]

In the above-mentioned conventional magnetic tape device, when a tape cassette is inserted obliquely into a receiving stand waiting at a cassette insertion position, the state of the oblique insertion is held by both side walls of the receiving stand. It is supposed to be fixed,
Since the distance between the two side walls is slightly larger than the width of the tape cassette, it may not be possible to correct the obliquely inserted state. May not be retracted to the cassette mounting position.

Further, by advancing the receiving table at the cassette mounting position to the cassette inserting position, the rear portion of the tape cassette inserted into the receiving table is projected outside from the cassette insertion slot, and the projected portion is gripped to hold the tape. Although the cassette is detached from the pedestal, since there is no function to push the tape cassette forward from the pedestal, the length of the protruding portion is short and it is difficult to grip the protruding portion. For this reason,
It is troublesome to remove the tape cassette.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional disadvantages, the present invention can correct a state in which a tape cassette is inserted obliquely into a receiving table, and can move the receiving table forward to a cassette insertion position. It is an object of the present invention to provide a magnetic tape device capable of pushing a tape cassette forward from the receiving table when the tape cassette is made to work.

[0007]

In order to achieve the above-mentioned object, a tape cassette receiving table is provided so as to be able to reciprocate back and forth between a cassette inserting position and a cassette mounting position. When the tape cassette is inserted into the cradle waiting at the position, the cradle is slightly retracted, and the cradle is retracted to the cassette mounting position based on a detection signal for detecting the tape cassette. In the magnetic tape device, the receiving table mounted at the cassette mounting position is advanced to the cassette inserting position based on the above, the tape cassette inserted into the receiving table is interlocked with the forward and backward movement of the receiving table. It is characterized in that an interlocking pressing mechanism for pressing in the moving direction of the table is provided.

According to the above construction, when the tape cassette is inserted into the cradle waiting at the cassette insertion position, the cradle retreats a little, and the cradle is moved to the cassette mounting position based on a detection signal for detecting that. The tape cassette inserted into the receiving table is pressed backward by an interlocking pressing mechanism that interlocks with the retraction. Therefore, even when the tape cassette is inserted obliquely into the receiving table, the state of the oblique insertion can be corrected, and the receiving table can be reliably retracted to the cassette mounting position.

The tape cassette is returned to the cassette mounting position by advancing the receiving table from the cassette mounting position based on the tape cassette removal signal, and the rear portion of the tape cassette is projected outside from the cassette insertion slot. In order to push the tape cassette further forward from the cassette insertion position by the interlocking pressing mechanism in conjunction with the advance of the cradle, the rear part of the tape cassette is greatly protruded to the outside from the cassette insertion slot, and the protruding portion is easily grasped. The tape cassette can be easily taken out.

According to a second aspect of the present invention, in the first aspect of the present invention, the interlocking pressing mechanism is provided along a front-rear direction on a pair of left and right guide plates erected on both sides of the movement path of the receiving table. A rack, a swinging rod pivotally attached to the receiving table and urged downward by a spring, and pinions and holding rollers provided at both ends of a support shaft rotatably supported by the swinging rod. The pressing roller is pushed up by the tape cassette inserted into the receiving table, and the pressing roller is pressed against the upper surface of the tape cassette by the spring, and the pinion is engaged with the rack. Features.

According to the above arrangement, when the tape cassette is inserted into the cradle waiting at the cassette insertion position, the cradle slightly retreats, and the cradle is moved to the cassette mounting position based on a detection signal for detecting the retraction. The pinion and the pressing roller meshing with the rack are rotated in conjunction with the retreat, and the tape cassette is pressed backward by the rotating pressing roller. Therefore, even when the tape cassette is inserted obliquely into the receiving table, the state of the oblique insertion can be corrected, and the receiving table can be reliably retracted to the cassette mounting position.

The receiving table mounted at the cassette mounting position is advanced to the cassette inserting position based on the tape cassette take-out signal. The pinion and the pressing roller meshing with the rack interlock with the advance of the receiving table. The tape cassette is reliably pushed out to the cassette insertion position by the rotating pressing roller which is rotated, and the rear part of the tape cassette is made to protrude largely from the cassette insertion opening, and the protruding portion is easily grasped to hold the tape cassette. It can be easily removed.

In this case, the structure of the interlocking pressing mechanism is relatively simple, the manufacturing cost is low, and even when the tape cassette is inserted obliquely into the receiving table, the obliquely inserted state can be reliably corrected. At the same time, the rear part of the tape cassette can be largely protruded from the cassette insertion opening to the outside.

According to a third aspect of the present invention, in the second aspect of the present invention, a clutch mechanism is provided between the holding roller or the pinion and the support shaft.

According to the above arrangement, if the tape cassette is pressed by the rotating pressing roller and an overload is applied, the clutch mechanism is disengaged and the pressing roller idles, so that the interlocking pressing mechanism is overloaded. Not be damaged by

According to a fourth aspect of the present invention, in the first aspect of the present invention, the interlocking pressing mechanism is provided along a front-rear direction on a pair of left and right guide plates erected on both sides of the movement path of the receiving table. A rack and a pinion pivotally attached to the receiving table and capable of meshing with the rack are provided, and the tape cassette inserted into the receiving table is configured to come into contact with the pinion.

According to the above configuration, substantially the same operation and effect as those of the second aspect of the invention can be obtained, and the number of parts can be reduced and the production cost can be reduced.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a magnetic tape apparatus according to an embodiment of the present invention. B is provided so as to be able to reciprocate back and forth in the front-rear direction, and an interlocking connection mechanism 3 for interlockingly connecting the receiving table 2 and a drive source (not shown) is provided. An interlocking pressing mechanism 4 for interlockingly pressing the tape cassette T inserted into the receiving table 2 in the moving directions a and b of the receiving table 2 is provided.

A pair of left and right guide plates 6a and 6b are erected on both side edges of the chassis 1, and a pair of upper and lower substantially Ls are located between a cassette insertion position A and a cassette mounting position B of each of the guide plates 6a and 6b. L-shaped guide holes 7 and 8 are formed, and a rack 9 is formed along the upper guide hole 7 in a substantially L-shape.
A substantially L-shaped guide groove 35 having substantially the same shape as the guide holes 7 and 8 is formed on the inner side surfaces of the two guide plates 6a and 6b.
and d.

The pedestal 2 is disposed between the guide plates 6a and 6b, and both ends of a guide rod 10 that rotatably penetrates the upper ends of both side walls 2a and 2b of the pedestal 2 are formed as upper guide holes. A pinion 11 movably inserted into the guide rod 10 and fixed to both ends of the guide rod 10 is meshed with the rack 9, and the guide pin 1 protrudes from the center of the side walls 2 a and 2 b.
2 is movably inserted into the lower guide hole 8, and guide pins 36 projecting from rear portions of both side walls 2 a and 2 b of the receiving table 2 are movably fitted into the guide grooves 35, and the guide rod 10 is provided. Further, since the receiving table 2 is supported at three points by the guide pins 12 and 36, the receiving table 2 can be smoothly moved along the guide holes 7, 8 and the guide groove 35.
A tape cassette stopper 13 protrudes from the rear end of the bottom wall 2 c of the receiving table 2.

In the above configuration, as shown in FIG.
When the tape cassette T is inserted, the leading end of the tape cassette T hits the stopper 13 and the receiving table 2 into which the tape cassette T is inserted.
Into the guide holes 7, 8 and the horizontal portions 7a, 8 of the guide grooves 35.
a, 35a can be retracted along the vertical portions 7b, 8b, 35b to the cassette mounting position B (see the phantom line in FIG. 7).

As shown in FIGS. 1 and 3, the interlocking connection mechanism 3 is rotatably supported by a pivot shaft 15 protruding from one of the guide plates 6a, and has an elongated hole formed at the end thereof. 16a
Are interlocked with the interlocking lever 16 fitted to the guide pin 12 inserted into the lower guide hole 8 and the rack 17a formed at the front end thereof is movable along the one guide plate 6a in the front-rear direction. An interlocking rod 17 meshed with a pinion 16b of the lever 16; and a driving source (not shown) connected to the rear end of the interlocking rod 17 is driven to move the interlocking rod 17 back and forth a, b. Thus, the interlocking lever 16 can be swung to move the receiving table 2 back and forth a and b.

As shown in FIGS. 4 and 5, the interlocking pressing mechanism 4 includes a rack 19 extending in the front-rear direction formed along the horizontal portion 7a of the upper guide hole 7 at the upper end of each guide plate 6a, 6b. A swinging rod 22 pivotally attached to a pivot shaft 20 projecting from the side walls 2a and 2b of the receiving base 2 and urged downward by a spring 21; and a tip end of the swinging rod 22 A pinion 25 and a rubber pressing roller 26 provided at both ends of a support shaft 24 rotatably inserted into a through hole 23 provided through an end wall of a cylindrical portion 22a integrally formed with the cylindrical portion 22a. The pressing roller 26 is pushed up by the tape cassette T thus pressed, the pressing roller 26 is pressed against the upper surface of the tape cassette T by the spring 21, and the pinion 25 is engaged with the rack 19.

A clutch mechanism 27 is provided in the cylindrical portion 22a between the pressing roller 26 and the support shaft 24. The clutch mechanism 27 is rotatably fitted to the support shaft 24 as shown in FIG. A pair of annular stoppers 28a protrude from a cylindrical portion of one end of the clutch main body 28, and a pressing roller 26 is fitted between the two stoppers 28a. By forming a plurality of notches at predetermined intervals in the circumferential direction in the portion, the coil spring 2
9, the elastic piece 28b is pressed against the support shaft 24 by the urging force of the coil spring 29, the support shaft 24 and the pressing roller 26 are connected, and when the pressing roller 26 is overloaded, The biasing force of the spring 21 loses the overload, and the clutch body 28 idles.
In FIG. 5, reference numeral 28c denotes a spring retaining projection protruding from the distal end of each elastic piece 28b, 30 denotes a pivoting rod retaining ring fitted to the distal end of the pivot shaft 20, and 31 denotes a pivoting rod. Each side wall portion 2 faces the cylindrical portion 22a to allow the swing of the
a, 2b. In addition, in FIG.
Denotes a cassette insertion opening formed in the casing 32 of the magnetic tape device.

In the above configuration, as shown in FIG. 6, when the tape cassette T is not inserted into the receiving table 2 which is waiting at the cassette insertion position A, the pinion 25 and the holding roller 26 are pushed down by the spring 21. In this state, when the tape cassette T is inserted into the receiving table 2 from the cassette insertion slot 32a, the pressing roller 26 is pushed up against the spring 21 by the upper surface of the tape cassette T as shown in FIG. 25 is also pushed up and opposes the rack 19. Next, when the tape cassette T is inserted into the receiving table 2 and the receiving table 2 is slightly retracted a, the driving source is driven based on a detection signal for detecting the receiving table 2 and the interlocking rod 17 is moved forward b. In conjunction with this, the interlocking lever 16 is rotated rearward via the rack 17a and the pinion 16b. As a result, the receiving table 2 moves back along the guide holes 7, 8 and the horizontal portions 7a, 8a, 35a of the guide grooves 35 (FIG. 7).
After that, the guide holes 7, 8 and the guide groove 35 are formed.
Are moved down along the vertical portions 7b, 8b, and 35b, and are mounted at the cassette mounting position B (see the phantom line in FIG. 7).

In conjunction with the retreat a of the receiving table 2, the pinion 25 meshes with the rack 19 and rotates forward c, whereby the pressing roller 26 also rotates forward c via the support shaft 24 and the clutch mechanism 27. , The pressing roller 2 that rotates forward c
6, the tape cassette T is pressed backward.

According to the above construction, the tape cassette T is pressed backward by the pressing roller 26 in conjunction with the retreat a of the receiving table 2, so that even when the tape cassette T is inserted into the receiving table 2 at an angle, By correcting the obliquely inserted state, the receiving table 2 can be reliably retracted to the cassette mounting position B.

As shown by the solid line in FIG. 7, when the tape cassette T whose position has been corrected by the interlocking pressing mechanism 4 retreats and an overload is applied to the pressing roller 26, the clutch mechanism 27 is disengaged and the pressing thereof is stopped. Since the roller 26 idles, it is possible to prevent the interlocking pressing mechanism 4 from being damaged by the overload.

When the tape cassette eject button is pressed in a state where the receiving table 2 is placed at the cassette placing position B (see the imaginary line in FIG. 7), the procedure reverse to the above is performed based on the eject signal. The receiving table 2 is advanced b to the cassette insertion position A.

The tape cassette T is returned to the cassette mounting position A by the advance b of the receiving table 2, and the rear portion of the tape cassette T is projected outside from the cassette insertion slot 32a. In conjunction with this, the pinion 25 meshes with the rack 19 and is reversely rotated d. Thereby, the pressing roller 26 is also reversely rotated d via the support shaft 24 and the clutch mechanism 27, and the tape cassette T is rotated by the reversely rotating d. It is pushed further forward from the cassette insertion position A (see the phantom line in FIG. 1).

According to the above configuration, since the tape cassette T is pushed forward from the receiving table 2 by the interlocking pushing mechanism 4, the projecting length H of the portion of the tape cassette T protruding from the cassette insertion slot 32a to the outside is conventionally reduced. (Fig. 1
), And the tape cassette can be easily removed by easily grasping the protruding portion.

In the above embodiment, the clutch mechanism 27 is provided between the pressing roller 26 and the support shaft 24. However, the clutch mechanism 27 may be provided between the pinion 25 and the support shaft 24.

FIGS. 8 and 9 show a magnetic tape device according to another embodiment of the present invention. The interlocking pressing mechanism 4 includes a rack 33 formed on guide plates 6a and 6b along the front-rear direction. And a pinion 34 pivotally supported on both sides of the bottom wall 3c of the receiving table 2 and capable of meshing with the rack 33,
The bottom surface of the tape cassette T inserted into the receiving table 2 is pinion 3
In order to contact the upper surface of the pinion 4, the axis of the pinion 34 is inclined outward by a predetermined angle α (12 ° in this embodiment). Reference numeral 35 denotes a leaf spring which is attached to a projection 36 projecting from the upper end of both side walls 2a and 2b of the receiving table 2 and pressed against the upper surface of the tape cassette T. The same components as those in the embodiment shown in FIGS. 1 to 7 except for the above are denoted by the same reference numerals, and description thereof will be omitted.

The operation and effect of the above configuration are substantially the same as those of the embodiment shown in FIGS. In addition,
It is preferable to incorporate the clutch mechanism 27 in the pinion 34, thereby preventing the interlocking press mechanism 4 from being damaged by overload.

[0035]

According to the first aspect of the present invention, even when the tape cassette is obliquely inserted into the receiving table, the tape cassette is pressed rearward by the interlocking pressing mechanism to correct the obliquely inserted state. can do.

The tape cassette is returned to the cassette mounting position by advancing the receiving table from the cassette mounting position, and the rear portion of the tape cassette is projected outside from the cassette insertion slot. In conjunction with the interlocking push mechanism, the tape cassette is pushed further forward from the cassette insertion position, so that the rear of the tape cassette protrudes greatly from the cassette insertion port to the outside, and the protruding part is easily grasped to easily hold the tape cassette. Can be taken out.

According to the second aspect of the present invention, the structure of the interlocking pressing mechanism is relatively simple, the manufacturing cost is low, and even when the tape cassette is inserted obliquely into the receiving table, the state where the tape cassette is obliquely inserted is maintained. Correction can be surely made, and the rear portion of the tape cassette can be largely projected outside from the cassette insertion slot.

According to the third aspect of the invention, when the tape cassette is pressed by the rotating pressing roller, if an overload is applied, the clutch mechanism is disengaged and the pressing roller idles. The mechanism is not damaged by overload.

According to the fourth aspect of the invention, substantially the same operation and effect as those of the second aspect of the invention can be obtained, and the number of parts can be reduced, and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing a magnetic tape device according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the same.

FIG. 3 is a transverse sectional view of the same.

FIG. 4 is a perspective view of the vicinity of the clutch mechanism.

FIG. 5 is an exploded perspective view of the clutch mechanism.

FIG. 6 is a longitudinal sectional view before the tape cassette is inserted.

FIG. 7 is a plan view of a main part showing a state in which the receiving table into which the tape cassette has been inserted is retracted.

FIG. 8 is a longitudinal sectional view showing a magnetic tape device according to another embodiment of the present invention.

FIG. 9 is a transverse sectional view of the same.

[Explanation of symbols]

 2 Receiving stand 4 Interlocking pressing mechanism 6a Guide plate 6b Guide plate 19 Rack 21 Spring 22 Swing rod 24 Support shaft 25 Pinion 26 Press roller 27 Clutch mechanism 33 Rack 34 Pinion

Claims (4)

[Claims] 1. A tape cassette receiving table arranged reciprocally in a front-rear direction between a cassette inserting position and a cassette mounting position, and a tape cassette is mounted on the receiving table waiting at the cassette inserting position. By the insertion, the receiving tray is slightly retracted, the receiving tray is retracted to the cassette mounting position based on a detection signal for detecting the receiving tray, and is mounted at the cassette mounting position based on the tape cassette removal signal. In the magnetic tape device configured to advance the receiving table to the cassette insertion position, an interlocking pressing mechanism that presses the tape cassette inserted into the receiving table in the moving direction of the receiving table in conjunction with the forward and backward movement of the receiving table. A magnetic tape device provided. 2. The interlocking pressing mechanism comprises: a rack provided along a pair of left and right guide plates erected on both sides of a movement path of the receiving table along a front-rear direction; And a pinion and a holding roller provided at both ends of a support shaft rotatably supported by the swinging rod. The holding roller is provided by a tape cassette inserted into the receiving table. 2. The magnetic tape apparatus according to claim 1, wherein the pressure roller is pushed up, the pressing roller is pressed against the upper surface of the tape cassette by the spring, and the pinion is engaged with the rack. 3. The magnetic tape device according to claim 2, wherein a clutch mechanism is provided between the holding roller or the pinion and the support shaft. 4. A rack provided along a front-rear direction on a pair of left and right guide plates erected on both sides of a movement path of the receiving stand, and an interlocking pressing mechanism, the rack being pivotally attached to the receiving stand. The magnetic tape device according to claim 1, further comprising a pinion that can be engaged with the tape cassette, wherein the tape cassette inserted into the receiving table is configured to come into contact with the pinion.