KR0170267B1 - Reel table distance control device of tape recorder - Google Patents

Abstract

The present invention discloses a reel table spacing device for adjusting the reel table spacing with the power of a capstan motor. In the present invention, the capstan motor shaft 61 and the pinch roller 70 compressing and transferring the tape, and a pair of reel tables 151 (25) and a reel table on which the reel of the tape cassette is seated and fixed, respectively, Two moving members (10) and (20) moveable to move the table closer or farther from each other, and a conveying means for moving the two moving members by the power of the capstan motor. The table is operated to move in a direction closer to or farther from each other, which has the advantage that the structure is simple and advantageous in miniaturization.

Description

Reel table spacing on tape recorder

Figure 1 is a schematic diagram showing a conventional reel table spacing device.

Figure 2 is a schematic perspective view showing a reel table spacing device according to the present invention.

3 is a schematic plan view for explaining an operation of moving the moving member of FIG.

4 is a schematic cross-sectional view of the apparatus in the state of FIG.

5 is a schematic plan view illustrating an operation of rotating the reel table.

FIG. 6 is a schematic sectional view in the operation of FIG.

* Explanation of symbols for main parts of the drawings

10,20: moving member 15,25: reel table

16,26: reel gear 17,27: connecting gear

30: slide member 35: first gear

36: second idler gear 41,46: rocker

50,51: rotating member 60: capstan motor

65: belt 66: drive gear

67: first idler gear 70: pinch roller

100: deck

The present invention relates to a reel table spacing device for a tape recorder, and more particularly to a reel table spacing device for a tape recorder for moving a reel table to selectively seat tape cassettes of different sizes.

In general, digital video cassette recorders and broadcast VCRs have a reel table spacing device that adjusts the gap between two reel tables for optional recording / playback by selectively employing 8 mm tape cassettes (SMALL CASSETTE) and 16 mm tape cassettes (STANDARD CASSETTE). It is adopted.

This reel table spacing device secures the two reel tables 8, 9 to the movable members 6, 7 which are slidably movable diagonally as shown in FIG. A motor 2 having a worm 3 installed therebetween the two moving members 6 and 7 is installed on the deck 1, meshed with the worm 3, and the gear portion of each moving member 6, 7 ( 6 ') (7') has a structure that is provided by the worm wheel (4) (5) engaging with.

The reel table spacing adjusting device of such a structure is selected by moving the moving members 6 and 7 in the diagonal direction (arrow direction) according to the rotational direction of the motor 2 so as to move closer to or away from the head drum 9. The gap between the two reel tables 8, 9 is adjusted to match the reel gap of the cassette.

However, the reel driving device having such a structure adopts a separate motor 2 for moving the moving members 6 and 7, and thus requires space thereof, which is disadvantageous in miniaturization and increases in parts and complicated structure. Has a problem.

It is an object of the present invention to provide a reel table space adjusting device of a tape recorder whose structure has been improved to reduce the unit cost of the product with a simple structure and to be advantageous in miniaturization.

The reel table space adjusting device of the tape recorder of the present invention to achieve the above object is a capstan motor shaft and pinch roller for pressing and transferring the tape, a pair of reel table on which the reel of the tape cassette is seated;

Two movable members which seat and fix the reel table, respectively, and which are movable so that the two reel tables are close to or far from each other;

A transfer means for moving the two moving members by the power of the capstan motor,

According to the rotation direction of the capstan motor is characterized in that the two reel table is moved in the direction of approaching or away from each other.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic perspective view of a reel table space adjusting device of a tape recorder according to the present invention. The capstan motor 61 (refer FIG. 3) is provided in the lower part of the deck 100, and the pinch roller 70 which presses with the shaft 61 and conveys a tape (not shown) is provided. A pair of reel tables 15 and 25 to which the reels of the tape cassette (not shown) are seated, and the reel tables 15 and 25 are fixed, respectively, and the two reel tables 15 and 25 are close to or far from each other. Two moving members (10) and (26), which are moved so as to be supported, and a conveying means for moving the two moving members (10) and (20) by the power of the capstan motor (60) are provided.

In the schematic operation of the above structure, the distance between the reel tables 15 and 25 is adjusted in a direction in which the two reel tables 15 and 25 are close to or far from each other according to the rotation direction of the capstan motor 60. .

As shown in FIG. 1, the transfer means first forms the rack parts 11 and 21 on opposite surfaces of the two moving members 10 and 20, and diagonally moves the two moving members 10 and 20 to each other. In the direction. Then, between the two moving members 10 (20) are connected by two rotating members 50 and 51. At this time, each of the rotating members 50 and 51 is a rack portion 11 of the moving members 10 and 20, respectively. And a gear part engaged with the 21. A drive gear 66 driven by the power of the capstan motor 60 is installed on the deck 100 between the two moving members 10 and 20, and the drive gear. The first rotation is supported by the connecting lever 68 and engaged with the drive gear 66 and moved in the rotational direction of the drive gear 66 to be connected or separated from the one rotating member (50) Install an idler gear 67. At this time, power transfer from the capstan motor 60 to the drive gear 66 is provided with a second belt pulley 69 under the drive gear 66 and the capstan motor shaft 61 is installed. ), The first belt pulley 64 is installed on the gear 63 engaged with the gear 62, and the belt 65 is wound around the two belt pulleys 64 and 69.The Castle.

According to the conveying means of the moving member 10, 20 having such a configuration, when the first idler gear 67 is moved by the power of the capstan motor 60 is connected to the rotating member 50, the rotating member ( The two moving members 10 and 20 are moved by the rotation of 50 and 51.

Meanwhile, driving means for selectively driving the two reel tables 15 and 25 by the power of the capstan motor 60 is further provided. The drive means is provided with a slide member 30 to the upper portion of the drive gear 66 between the two moving members (10) and (20) by a predetermined sliding means, the lower surface of the slide member (30) As the slide member 30 moves, the first gear 35 engaged with the drive gear 66 and the first gear 35 are supported by the first lever 35 by the connecting lever 35 '. 35 is installed in engagement with the second idler gear 36 movable in the rotational direction of the first gear 35.

According to the driving means, when the slide member 30 is moved so that the first gear 35 comes into contact with the drive gear 66, the second idler gear 36 is driven in accordance with the rotational direction of the drive gear 66. It is connected to one of the reel tables 15 and 25 to drive the selected reel table. The reel table 151 (25) has reel gears 16 and 26, which may be connected to the second idler gear 36, and reel gears 16 and 26 to the movable members 10 and 20. And coupling gears (17) (27) for always engaging the second idler gear (36) and rotating the reel table (15) (25).

The sliding means forms a projection 31 at the end of the slide member 30, the cam member (not shown) which is moved to a predetermined drive source to contact the projection 31, the slide member 30 is Can be moved. Here, the slide member 30 is formed with a plurality of guide slots 32, 33, 34, and the deck 100, the guide pins 37 are respectively coupled to the guide slots 32, 33, 34 (38) and (39) were installed to guide the movement of the slide member (30). In this case, the guide pins 37, 38, 39 are formed with jaws 37 ′, 38 ′, 39 ′ so that the slide member 30 can be spaced apart from the deck 100 by a predetermined distance.

In addition, a locking means for locking the reel table 15, 85 to prevent the flow of the movable member 10, 20 when the drive is further provided.

The locking means has a pair of lockers (41) and (46) rotatably installed on the deck (100), adjacent to the one rotating member (50), and each locker (41) ( The pins 43 and 45 are formed on the upper surface of the 46, and one end of the two lockers 41 and 46 is connected by a spring 47 so that the other end of the lockers 41 and 46 is rotated. It was supposed to lock on the gear part of. The release of the locking means that when the slide member 30 is moved, one end of the slide member 30 interlocks the pins 43 and 45 of the lockers 41 and 46 so that the lockers 41 and 46 are connected. It is unlocked when it is rotated.

The reel table space adjusting apparatus of the tape recorder according to the present invention configured as described above operates as follows.

First, using a 16mm tape cassette in the player body, and then inserting it into a small 8mm tape cassette, the gap between the reel tables 15 and 25 is adjusted by a cassette size sensing device (not shown).

2 to 4, when the selected tape cassette enters the main body, the capstan motor 60 is driven in response to a signal that detects the size thereof. When the shaft 61 rotates counterclockwise, the belt 65 ) Is rotated clockwise to rotate the drive gear 66 clockwise. Here, when the tape cassette enters the main body, the pinch roller 70 is not operated to be pressed onto the capstan motor shaft 61, and the sliding member 30 is interlocked with the projection 31 by a cam member (not shown). As shown in FIG. 1, the first gear 35 is separated from the driving gear 66 by moving downward. As the driving gear 66 is rotated in the clockwise direction, the first idler gear 67 supported by the connecting lever 68 rotates in the counterclockwise direction, but tries to be separated from the rotating member 50, but the sliding member moved downward. Since the extension shaft 67 'of the first idler gear 67 is caught by the engaging jaw 30' of the 30, the first idler gear 67 is engaged with the rotating member 50. Accordingly, the rotating member 50 is rotated in the clockwise direction and the rotating member 51 is rotated in the counterclockwise direction to move the respective moving members 10 and 20 in the upward direction (arrow direction). Accordingly, the two reel tables 15 and 25 are brought close to each other and stopped in a state corresponding to the reel spacing of the 8 mm tape cassette.

On the other hand, when the distance between the reel table 10, 20 is adjusted, the lockers 41 and 46 are rotated by contacting the pins 43 and 45 to the sliding member 30 moved downward. The ends of the (41) and (46) are unlocked from the rotating member (50). Therefore, the rotation members 50 and 51 do not interfere with the rotation. At this time, the spring 47 connecting the two rockers 41 and 46 is in a tensioned state.

In this way, after the gap between the two reel tables 15 and 25 is adjusted, an 8 mm tape cassette is seated on the reel tables 15 and 25. In this case, the tape cassette is inserted and seated and the gap adjusting operation of the two reel tables 15 and 25 is simultaneously performed.

Subsequently, the operation of driving the reel of the tape cassette is as follows. Taking the PLAY operation as an example, referring to FIGS. 2, 5 and 6, first, the projection 31 of the slide member 30 is moved upward by the cam member (not shown). At this time, the first gear 35 installed on the lower surface of the sliding member 30 is meshed with the drive gear 66, and the lockers 41 and 46, which are interlocked by the sliding member 30, with the restoring force of the spring 47. While rotating, the end is locked to the main surface gear portion of the rotating member 50. Therefore, the rotating members 50 and 51 and the moving member 10 and 20 maintain the stationary state.

Subsequently, the pinch roller 70 is pressed onto the capstan motor shaft 61 to compress the tape 110. The capstan motor 60 is driven to rotate the shaft 61 counterclockwise, and the belt 65 is clockwise. It is wound in the direction to rotate the drive gear 66 clockwise. At this time, the first gear 35 is rotated counterclockwise, and accordingly, the second idler gear 36 supported by the coupling lever 35 'is rotated counterclockwise and moved to the reel table 25 to connect the gear ( 27). Accordingly, the reel table 25 is rotated clockwise to wind the tape 110.

On the other hand, since the first idler gear 67 is rotated counterclockwise according to the clockwise rotation of the drive gear 66, the first idler gear 67 is moved away from the rotating member 50 so that power is not transmitted to the rotating member 50. . In addition, as the extension shaft 67 'of the first idler gear 67 is caught by the locking jaw 30' of the slide member 30, as shown in FIG. 5, excessive movement is prevented.

Next, during the reverse driving of the PLAY, such as REV and REW, the capstan motor 60 is driven in the opposite direction to drive the reel table 15. At this time, the first idler gear 67 is moved clockwise to reel the gear. The reel table 15 is rotated counterclockwise in engagement with the coupling gear 17 engaged with (16), and a detailed description thereof will be omitted. However, while the first idler gear 67 is rotated clockwise by counterclockwise rotation of the drive gear 66 during the reverse driving operation, the first idler gear 67 is moved toward the rotating member 50 to be engaged with the rotating member 50. Since the extension shaft 67 ′ is caught by the locking jaw 30 of the slide member 30, the extension shaft 67 ′ is not engaged with the rotation member 50.

As described above, the reel table spacing adjusting device of the tape recorder according to the present invention allows the reel table 15 and 25 to be adjusted by the power of the capstan motor 60 without employing a separate motor. It is advantageous to reduce the size and size of the device.

Claims (9)

A capstan motor shaft and a pinch roller for compressing and transferring the tape, a pair of reel tables on which the reel of the tape cassette is seated, and two moving members movable to move the reel table closer to or farther apart from each other. And a transfer means for moving the two moving members by the power of the capstan motor, so that the two reel tables are moved in a direction close to or far from each other according to the rotation direction of the capstan motor. Table Spacer. According to claim 1, wherein the conveying means is driven in engagement with the drive gear while being supported by the drive gear rotated by the power of the capstan motor, a plurality of rotary members connecting between the two moving members; And a first idler gear that is moved in a rotational direction of the drive gear to be connected to or separated from the at least one rotating member, such that the two moving members are moved when the first idler gear is connected to the rotating member. Reel table spacing on tape recorders. The reel table spacing device of a tape recorder according to claim 2, further comprising limiting means for limiting a moving section of the first idler gear. 4. The method of claim 3, wherein the limiting means extends the shaft of the first idler gear upward to form an extension shaft, and installs a slide member on the upper portion of the first idler gear to move to a predetermined driving source, A reel table spacing device of a tape recorder, characterized in that it forms a locking step for the extension shaft. The tape recorder reel table adjusting apparatus of claim 1, further comprising driving means for selectively driving the two reel tables with the power of the capstan motor. The method of claim 5, wherein the drive means is installed between the two moving members and the drive member driven by the power of the capstan motor and the slide member that is movably installed on top of the drive gear, and to move the slide member A sliding means, a first gear rotatably supported on a lower surface of the slide member and engaged with the drive gear according to the movement of the slide member, and installed in engagement with the first gear while being supported by the first gear. And a second idler gear movable in the rotational direction of the first gear, wherein the second idler gear is moved in accordance with the rotational direction of the drive gear to selectively engage the two reel tables. Reel table spacing. 7. The tape recorder according to claim 6, wherein the sliding means forms a protrusion at an end of the slide member, and the cam member moved to a predetermined driving source is brought into contact with the protrusion to move the slide member. Reel table spacer. The reel table spacing device of a tape recorder according to claim 2, further comprising a locking means for moving and stopping the moving member. According to claim 8, The locking means comprises a locker rotatably installed adjacent to the rotating member, and the slide member for rotating the locker, one end of the rotating member when the locker is rotated in one direction A reel table space adjusting device of a tape recorder, characterized in that the main surface is in contact with the main surface to lock the rotating member.