KR0113742Y1 - Clutch control equipment for headphone stereo - Google Patents

Abstract

The present invention relates to a clutch driving device of a headphone stereo, wherein first and second idle gears are mounted on a main base to transmit power driven by a driving mechanism, and a mode shift groove is formed at one side of the first idle gear. A cam gear is engaged, a lever change shaft having a horizontal hole is formed in a fixed shaft for rotatably fixing the cam gear, and a lever is shifted so as to be engaged with the second idle gear and to change the speed of the tape such as fast forwarding. As the change moves to the left and right direction, the clutch gear is driven in the up and down direction to control the torque, so that each mode (reverse play, rewind, fast rewind, play) of the tape seated on the pair of reel gears Particularly, the parts of the chain mechanism and the idle gear which were used at the time of the pair fast forward mode shift are removed and the material cost and adjustment Of course, it is that you can reduce the airborne malfunction caused rotary system generated during operation can be made thinner as well as the rotary system is prevented.

※ Selectivity: 2nd

Description

Clutch Drive in Headphone Stereo

1 is a plan view schematically showing a rotation system for shifting each mode of a conventional headphone stereo,

2 is a plan view showing a clutch driving device of the headphone stereo according to the present invention,

3 is a side view of the clutch drive shown in FIG.

＊ Explanation of symbols on main parts of drawing

10: main base 11: drive gear

12: torque control gear 13: idle gear

14: transmission gear 15: transmission gear

16: main gear 30,31: 1st and 2nd idler gear

32: fixed shaft 33: cam gear

33a: Mode shift groove 34: Clutch gear

35,39: 1st and 2nd reel gear 36,37,38: Play gear

40: gear sensor 41: lever change

41a: horizontal slot 42: axis

43: arm

The present invention relates to a clutch driving device of a headphone stereo, and more particularly, by changing a rotation ratio by driving a clutch driving a tape up and down, and in particular, the constant speed and fast forward rotation of each mode of the tape. A clutch drive of a headphone stereo is provided so as to simplify the mechanism of the rotation system by controlling the number.

In general, the headphone stereo deck mechanissm is a device that plays back the sound recorded on the tape or records the external sound on the tape. There are various configurations and operation methods depending on the characteristics of each product to select and play.

1 is a view illustrating a rotation system for shifting the mode of a headphone stereo according to the prior art, in which a capstan gear (not shown) is driven to drive a tape seated on a pair of reel gears (not shown) by power driven by a drive mechanism. Drive gear 11 is engaged on the main base 10, and the torque control gear 12 for controlling the rotational force is engaged with the drive gear 11, and the torque control gear 12 is engaged. One side is equipped with an idle gear 13 and the transmission gear (14).

In addition, the idle gear 13 and the transmission 14, the transmission gear 15 that is engaged in the mode shifting, such as constant speed running or fast forward of the tape is transmitted to the outer gear 15, the transmission gear 15 is mounted on the transmission gear 15, The main gear 16 which engages with a pair of reel gears and runs a tape for each mode (play, rewind, fast forward) is fixed.

In the conventional headphone stereo rotation system configured as described above, when the tape is normally driven while the tape is inserted into the pair of reel gears, the play mechanism (not shown) installed on the main body is pressed, and the drive mechanism is rotated. The driver gear 11 meshed with the capstan gear rotates clockwise while transmitting power to the capstan gear by a transmission member such as the back.

Then, the torque control gear 12 meshed with the driver gear 11 is rotated counterclockwise to rotate the cycle gear 16 rotated by the idle gear 13 and the transmission gear 15 clockwise. To run the tape normally. At this time, the transmission gear 14 mounted on one side of the torque control gear 12 is not engaged.

On the other hand, when the tape needs to be fastened in a mode such as fast forward, the idle gear 13 engaged with the torque control gear 12 during normal driving of the tape is driven by a separate linkage mechanism (not shown). At the same time, the gear shift gear 14 is engaged with each other, thereby increasing the rotational speed of the main gear 16 to operate the fast forward mode.

However, the rotation system of the headphone stereo is equipped with a separate chain mechanism and an idle gear on the main base in order to shift the tape seated on the pair of reel gears to the fast-winding mode, which increases the number of parts and complicates the assembly work. Of course, there was a problem that the malfunction of the product is deteriorated due to a malfunction occurs in each mode shift.

The present invention has been researched and developed to solve the conventional problems as described above, the object of the present invention is to drive the clutch gear up and down on the main base to limit the shift and torque for each mode during normal driving of the tape By removing the components of the chain mechanism and idle gear used in the mode shifting, the material cost and assembly labor can be reduced, and the malfunction of the rotation system can be prevented and the headphone stereo can be made thinner. It is to provide a clutch drive.

A feature of the present invention for achieving the above object, in the headphone stereo for driving the tape to reproduce the sound recorded on the tape or to record the external sound on the tape, to transmit the drive power to the drive mechanism First and second idler gears are mounted on the main base, and a cam gear having a mode shift groove is engaged with one side of the first idler gear, and a horizontal hole is formed on a fixed shaft rotatably fixing the cam gear. The lever is inserted in a movable manner, and the clutch is driven in the upper and lower directions so as to control the torque as the lever change moves in the left and right directions when the mode shift such as fast forwarding of the tape is engaged with the second idle gear. It is characterized by including a gear.

Hereinafter, a preferred embodiment of a clutch driving device of a headphone stereo according to the present invention will be described with reference to the accompanying drawings.

2 and 3 is a view showing the clutch drive device according to the present invention, the main base 10 is installed a plurality of parts in the main body 10 has a first idler gear 30 for transmitting the power driven by the drive mechanism And a cam gear 33 rotatably fixed to the first idle gear 30 by the second idle gear 31 and the fixed shaft 32, and the cam gear 33 is reversed. A mode shift groove 33a capable of shifting the modes of the RVS PLAY rewind and the fast forward FF play is formed. In addition, the second idle gear 31 is engaged with the clutch gear 34 driven up and down and the first reel gear 35 on which the tape is seated.

A plurality of play gears 36, 37, 38 are engaged with the clutch gear 34, and a second reel gear 39 is engaged with one side of the play gear 38, and the first reel gear ( The gear sense 40 is engaged between the 35 and the play gear 36. Meanwhile, a lever change 41 having a horizontal hole 41a formed at one end thereof is inserted into the fixed shaft 32 fixed to the center of the cam gear 33 so as to be movable in left and right directions. An upper portion of the lever change 41 is mounted with an arm 43 rotatably fixed by a shaft 42.

Referring to the operation of the clutch driving device of the headphone stereo according to the present invention configured as described above in detail.

When the play key installed in the main body is pressed while the tape is inserted into the pair of first and second reel gears 36 and 39 mounted on the main base 10, the first driving mechanism rotates when the tape is normally driven. The idle gear 30 is rotated in the clockwise direction, the cam gear 33 engaged at one side of the first idle gear 30 is rotated counterclockwise, and the second idle gear 31 and the plurality of engaged meshes are simultaneously rotated. The play gears 36, 37 and 38 are rotated to drive the tape. At this time, the arm 43 for moving the lever change 41 in which the horizontal slot 41a is inserted into the fixed shaft 32 of the cam gear 33 in the left and right directions is not rotated so that the clutch gear 34 is rotated. It is placed in the initial state.

Then, when the tape is shifted to the fast-winding mode, the lever change 41 in which the horizontal long hole 41a is inserted into the fixed shaft 32 of the cam gear 33 has the mode shift groove of the cam gear 33 fast-forwarded. When the mode is shifted clockwise and the arm 43 fixed by the shaft 42 is rotated counterclockwise to push the lever change 41 to the left direction, thereby the first idle gear 30 To control the torque by driving the clutch gear 34 engaged in the upward direction.

As described above, according to the clutch driving device of the headphone stereo according to the present invention, the parts of the chain mechanism and the idle gear used in the fast-winding mode shifting the tape seated on the pair of reel gears are removed, thereby reducing material cost and assembly labor. Of course, the malfunction caused by the operation of the tachometer is not only prevented in advance, it is also effective to thin the tachometer.

Claims (1)

In a headphone stereo for driving a tape to play a sound recorded on a tape or to record an external sound on a tape, first and second idle gears are mounted on a main base to transmit power driven by a driving mechanism. And a cam gear having a mode shift groove is engaged with one side of the first idle gear, and a lever change formed with a horizontal hole is rotatably inserted into a fixed shaft for rotatably fixing the cam gear. The headphone stereo includes a clutch gear which is driven up and down to control torque as the lever change is moved to the left and right directions when the mode shifts such as fast-forwarding of the tape. Clutch drive.