KR0130200Y1 - Driving device of pinch arm and take-up guide for magnetic recording player - Google Patents

Abstract

The present invention relates to a pinch arm and a take-up guide driving device of a magnetic recording and reproducing apparatus, which are formed in a loading base connected to a loading gear which is cam-shaped and rotated by a separate driving force with a predetermined formation, and the loading gear and several loading levers. Slant post base is moved along the loading path, the pinch arm is rotatably coupled to the shaft pin is rotatably coupled to the pinch roller, and the torsion coupled to the shaft pin to elastically support the pinch arm A spring, a take-up guide rotatably coupled to the shaft pin fixed adjacent to the shaft pin, and a take-up post fixed thereto; a torsion spring coupled to the shaft pin to elastically support the take-up guide; The cam pin inserted into the cam groove of the loading gear is fixed and rotatably coupled to the shaft pin. Composed of an intermediate lever that interlocks the torsion spring supporting elasticity of the pinch arm, and interlocks the slantpost base and the pinch arm, and uses the elastic force to support the take-up guide for the driving operation of the slantpost base. It was to make it stable.

Description

Pinch arm and take-up guide drive of magnetic record player

(A) and (b) of FIG. 1 show a pinch arm and take-up guide drive of a magnetic recording player according to the prior art, (a) is a plan view showing a cassette-in mode of a tape, (b) is a plan view showing the loading of the tape.

2 to 5 show the configuration and operation of the pinch arm and take-up guide driving device of the magnetic recording and reproducing apparatus according to the present invention.

2 is a plan view of the cassette-in mode.

Figure 3 shows a plan view of the tape during loading.

4 is a plan view of the POWER SAVE mode.

5E is a plan view of a playback mode.

Figure 6 is a side cross-sectional view showing a pinch arm and take-up guide drive of the magnetic recording player according to the present invention.

* Explanation of symbols for main parts of the drawings

20: loading gear 27: slantpost base

29: main base 30, 33: shaft pin

31: pinch arm 31a: locking pin

31b: hook bending part 31c: long hole

32, 36: torsion spring 35: take-up guide

35a: Operation pin 39: Intermediate lever

40: stopper

The present invention relates to a pinch arm and take-up guide driving device of a magnetic recording player, and more particularly, to a pinch arm and take-up guide driving device of a magnetic recording player which makes the loading operation of the slant post base more stable.

The pinch arm and take-up guide driving apparatus of the magnetic recording and reproducing apparatus according to the prior art, as shown in (a) and (b) of FIG. 1, has a loading gear 2 having a cam groove 1 formed in a predetermined shape. The pinch arm (7) rotatably coupled to the shaft pin (6) and the pinch roller (5) rotatably coupled to the slant post base (4) moved along the loading path (3) formed in the loading base. And a lever A 8 coupled to the shaft pin 6 so as to be coaxially rotatable with the pinch arm 7, and coupled to the shaft pin 6 to ride the pinch arm 7 and the lever A 8. The torsion spring 9, which is sexually supported, and the cam pin 10 inserted into the cam groove 1 of the loading gear 2 at one end thereof are fixed and rotatably coupled to the shaft pin 11, and the lever A 8 The lever B 12 and the take up post 13 which are interlocked by the rotation of the fixed and the rotatable pin 14 are rotatably coupled to the slant post base ( It consists of a take-up guide 16 that is linked to the movement of the loading pin 15 connected to 4).

In the figure, reference numeral 17 is a capstan shaft, 18 is a stopper.

In the pinch arm and take-up guide driving device of the magnetic recording and reproducing apparatus, as shown in FIG. 1 (a), in the unloading state of the tape, the slant post base 4 is applied to the restoring force of the torsion spring 9. As a result, the rotational operation of the pinch arm 7 which receives the rotational force in the clockwise direction with respect to the shaft pin 6 is regulated.

Although not shown in the drawing in this state, when the rolling gear 2 is rotated by a separate driving force, the slant post base 4 interlocked with the loading gear 2 leads the tape and the loading path 3 is pulled out. As a result, the pinch arm 7 and the lever A 8 are rotated clockwise by the restoring force of the torsion spring 9 by the movement of the slant post base 4.

As shown in FIG. 1 (b) by the rotation of the lever A 8, one side edge of the lever B 12 is pushed to drive the lever B 12, and the lever B 12 The lever B 12 receives a rotational force in a counterclockwise direction due to the change in the inner diameter of the cam groove 1 into which the cam pin 10 is inserted. As a result, the torsion spring 9 is pressed to the pinch arm 7. The pinch roller 5 is elastically compressed to the capstan shaft 17 by pushing in the direction of the capstan shaft 17.

However, in the above-described pinch arm and take-up guide driving apparatus of the magnetic recording player according to the prior art, the slant post base 4 is torsion-spring in the cassette-in mode shown in FIG. 9 is directly contacted by the pinch arm 7 which is elastically supported, and when a loading signal is applied in such a state, the slant post base 4 is loaded by the restoring force of the torsion spring 9, thereby allowing the slant post base to be loaded. The loading operation of (4) was unstable.

An object of the present invention is to interlock the slant post base and the pinch arm to compensate for the instability caused by the loading operation of the slant post base, the driving operation of the slant post base by using the elastic force to support the take-up guide The present invention provides a magnetic recorder pinch arm and a take-up guide driving device for more stable operation.

In order to achieve the above object of the present invention, a pinch roller is provided and has a pinch arm rotatably supported to move the pinch roller to an initial position and a crimped position, and a take-up post and a tape-up post. A take-up guide rotatably supported to move the initial position and the tape guide position, first interlocking means for moving the pinch arm from the initial position to the crimping position between the pinch arm and the take-up guide, and first interlocking operation Provided is a pinch arm and take-up guide driving device of a magnetic recording / reproducing device including second interlocking means for further interlocking a pinch arm such that the pinch roller is pressed against a capstan shaft at a position moved up to a crimping position by means.

The first interlocking means may include a first torsion spring that forms a long hole in the pinch arm, installs an actuating pin inserted into the long hole in the take-up guide, and elastically supports the take-up guide. It can be provided and comprised.

In addition, the second interlocking means includes a second torsion spring, which is supported at both ends of the pinch arm so as to be retractable, and an intermediate portion in which the first torsion spring is in contact with the loading gear to press and press the end of the first torsion spring at its pre-press position. The lever can be provided.

On the other hand, according to another feature of the present invention, a pinch roller is provided and rotatably supported to move the pinch roller to the initial position and the position which is pressed against the capstan, and both ends of the pinch arm to be retractable A take-up guide having a first torsion spring supported, a take-up post and supported to rotate in conjunction with a pinch arm to move the take-up post to an initial position and a tape guide position; A pinch arm of the magnetic recording player including an intermediate lever for selectively interlocking one end of the first torsion spring to rotate the pinch arm to the crimping position and forcing the first torsion spring to contract in the crimping position; and It is to provide a take-up guide drive.

Hereinafter, the pinch arm and the take-up guide driving device of the magnetic recording player according to the present invention will be described according to the embodiment shown in the accompanying drawings.

2 to 5 are plan views showing the configuration and operation of the pinch arm and take-up guide driving apparatus of the magnetic recording player according to the present invention, and FIG. 6 is the pinch arm and take-up guide driving of the magnetic recording player according to the present invention. Side sectional view showing the device.

As shown in the drawing, the pinch arm and take-up guide driving device of the magnetic recording and reproducing apparatus according to the present invention include a loading gear 20 having a cam groove 21 formed in a predetermined shape and rotating with a separate driving force, and the loading The slantpost base 27 and the pinch roller 28 which are connected to the gear 20 and several loading levers 22, 23, 24 and moved along the loading path 26 formed in the loading base 25. ) Is coupled to the rotatable pinch arm 31 rotatably coupled to the shaft pin 30 fixed to the main base 29, and the pinch arm 31 is coupled to the shaft pin 30 to elastically support the pinch arm 31 A torsion spring (32), a take-up guide (35) rotatably coupled to a shaft pin (33) fixed adjacent to the shaft pin (30), and a take-up post (34) fixed, and the shaft pin (33). Torsion spring (36) coupled to the elastic support for the take-up guide (35), and one side end The cam pin 37 inserted into the cam groove 21 of the loading gear 20 is fixed to the shaft pin 38 and rotatably coupled to the torsion spring 32 to support the pinch arm 31. The intermediate lever 39 is comprised.

The pinch arm 31 has a locking pin 31a and a locking bent portion 31b formed on both sides thereof, and both ends of the torsion spring 32 are supported by the locking pin 31a and the locking bent portion 31b. have.

The locking pin 31a is configured to interlock a torsion spring 36 supporting the take-up guide 35 in the regeneration mode.

The take-up guide 35 has an operation pin 35a fixed to one side edge of the middle portion, and the operation pin 35a is inserted into a long hole 31c formed at a predetermined portion of the pinch arm 31, thereby taking up The pinch arm 31 is interlocked by the rotation operation of the guide 35.

One end of the torsion spring 36 that elastically supports the take-up guide 35 is supported by a stopper 40 fixed to the main base 29, and the other end thereof is supported by the take-up guide 35. to be.

A locking pin 39a that is in contact with one side of the torsion spring 32 is fixed to one side end of the intermediate lever 39.

In the drawings, reference numeral 17 is a capstan shaft, 41 is a stopper, 42 is a winding reel, 43 is an eject lever, and 44 is an eject lever spring.

Referring to the operation and effect of the magnetic recording player pinch arm and take-up guide driving device according to the present invention is configured as follows.

As shown in FIG. 2, in the cassette-in mode of the magnetic recorder, the slant post base 27 is kept in an unloaded state, so that the slant post base 27 is a pinch arm 31. As shown in FIG. ) And the pinch arm 31 is rotated in the counterclockwise direction about the shaft pin 30.

At this time, since the operation pin 35a of the take-up guide 35 is inserted into the long hole 31c of the pinch arm 31, the take-up guide receiving the rotational force in the clockwise direction by the restoring force of the torsion spring 36 ( The rotation of 35 is regulated.

In this cassette-in mode, the slantpost base 27, pinch roller 28, and take-up post 34 are in the unloading position.

3 shows that the pinch arm 31 during the loading of the tape shows the interlocking relationship between the slant post base 27. When the loading gear 20 is rotated by a separate driving force, the loading lever 22 ( The slantpost base 27, which is connected to 23) 24, leads the tape and moves backward along the loading path 26 of the loading base 25.

The take-up guide 35 of which the restraining force is released by the movement of the slant post base 27 rotates clockwise around the shaft pin 33 by the restoring force of the torsion spring 36, and the take-up guide By the rotation of the (35), the pinch arm 31 connected in the relationship between the operating pin (35a) and the long hole (31c) is rotated clockwise about the shaft pin (30).

Thereafter, when the take-up guide 35 comes into contact with the stopper 41, the movement of the take-up guide 35 under the pinch arm 31 is stopped, and the slant post base 27 is loaded with the loading gear 20. The loading operation is performed by the continuous rotation of.

4 illustrates a standby mode, in which the intermediate lever 39 in which the cam pin 37 is inserted into the cam groove 21 according to the rotation of the loading gear 20 is centered on the shaft pin 38. It rotates in a counterclockwise direction, and the locking pin 39a of the intermediate lever 39 comes close to the torsion spring 32 supporting the pinch arm 31.

At this time, the pinch roller 28 is in a state away from the capstan shaft 17.

Figure 5 shows the regeneration mode, the intermediate lever 39 is rotated more counterclockwise around the shaft pin 38 by the rotation of the loading gear 20, accordingly the locking of the intermediate lever 39 The pin 39a pushes one side of the torsion spring 32 to the rear side, and the pinch arm 31 is rotated clockwise by the elastic force of the torsion spring 32, so that the pinch roller 28 is attached to the capstan shaft 17. ) Is pressed at a predetermined pressure.

At the same time, the locking pin 31a of the pinch arm 31 pushes the torsion spring 36 supporting the take-up guide 35 backward so that the take-up guide 35 is pressed by the compression force of the torsion spring 36. Will control the position of.

As described above, the pinch arm and take-up guide driving device of the magnetic recording and reproducing apparatus of the present invention interlock the slant post base and the pinch arm, and the drive source is driven by using an elastic force that supports the take-up guide. There are effects such as making the post-base loading operation more stable.

Claims (4)

A pinch arm installed and having a pinch arm rotatably supported to move the pinch roller to an initial position and a crimped position, and having a take-up post and rotating the tape-up post to an initial position and a tape guide position The first interlocking means for moving the pinch arm from the initial position to the crimping position between the pinch arm and the take-up guide, possibly supported, and at a position moved before the crimping position by the first interlocking means. And a second interlocking means for further interlocking the pinch arm such that one pinch roller is pressed against the capstan shaft. The method according to claim 1, wherein the first interlocking means forms a long hole in the pinch arm, installs an actuating pin inserted in the long hole in the take-up guide, and elastically supports the take-up guide. A pinch arm and take-up guide driving device of a magnetic recording and reproducing apparatus, comprising a first torsion spring. 2. The method of claim 1, wherein the second interlocking means is connected to the second torsion spring, which is supported on the pinch arm so that both ends are retractably, and the end of the first torsion spring is in contact with the loading gear at its piezoelectric position. Pinch arm and take-up guide driving device of the magnetic recording and reproducing, characterized in that it comprises an intermediate lever that is pressed. A pinch arm provided with a pinch roller and rotatably supported so as to move the pinch roller to an initial position and a position pressed against the capstan, a first torsion spring whose both ends are retractably supported by the pinch arm, and a take-up A take-up guide having a post and rotatably supported in conjunction with a pinch arm to move the take-up post to an initial position and a tape guide position; and the pinch arm linked to a loading gear to rotate the pinch arm to a crimp position. And an intermediate lever for selectively interlocking one end of the first torsion spring and for urging the end of the first torsion spring to contract in the crimped position.