KR0113741Y1 - Mode changer equipment for headphone stereo - Google Patents

Abstract

The present invention relates to a headphone stereo mode converting apparatus, wherein a relay gear for driving a tape by driving a driving mechanism is mounted on a main base, and a first idler gear coupled by a bracket is geared to one side of the relay gear. The arm is rotated around the hinge so as to transmit power to a plurality of gear groups mounted on the main base, and to move the lever change in contact with the arm in the left and right directions in each mode conversion of the tape. In order to adjust the mode shifting means to the first idler gear, a plurality of solenoids and followers to drive and simultaneously control and reverse the cam gear during driving of each mode (reverse play, rewind, fast forward, and play) of the tape are deleted. The number of parts and assembly can be reduced, and malfunctions due to errors in assembly tolerances can be reduced. Is prevented in the roll can improve the reliability of the operation mechanism.

Selectivity: first degree

Description

Mode converter of headphone stereo

1 is a plan view showing the mode conversion apparatus of the headphone stereo according to the present invention.

＊ Explanation of symbols on main parts of drawing

10: main base 11: relay gear

12, 27: hinge 13, 15: 1st, 2nd children gear

14 Bracket 16: Fixed shaft

17: cam gear 17a: mode conversion groove

18: clutch gear 19,23: 1st and 2nd reel gear

20,21,22: Play Gear 24: Gear Sensor

25: lever change 25a: horizontal long hole

26: contact piece 28: arm

29: bending piece

The present invention relates to a headphone stereo mode conversion device, and more particularly, by improving the structure of the cam gear for converting the tape for each mode, reducing the material cost and assembly labor, as well as the drive and rotation system of the deck It is a headphone stereo deck mechanism that allows simple design.

In general, the headphone stereo deck mechanism is a device that reproduces the sound recorded on the tape or records the external sound on the tape, and the user selects the A side or B side sound among the notes recorded on the tape as needed. It has various configurations and operation methods according to the characteristics of each product so that it can be reproduced.

The headphone stereo is operated at the same time as the drive mechanism starts to rotate clockwise by the rated voltage applied to the microcomputer when the user presses the play key while the tape is inserted in the device body. When the solenoid mounted on one side of the instrument is turned on, a plurality of cam gears and followers rotated in both directions can follow one profile selected from among multiple profiles, that is, a profile capable of playing a tape. Control the cam gear. Then, to turn off the headphone stereo, press the stop key, which is one of the modes, to cam the profile for the stop as the solenoid turns on as the drive mechanism rotates counterclockwise in the reverse order of tape play. It stops the operation by controlling to follow the gear.

However, the conventional stereo deck mechanism operated as described above has a large number of parts such as solenoids to perform rotational force and reversal when converting the tape into a selected mode (reverse play, rewind, fast forward, or forward play). This is complicated and accordingly, the material cost is increased, as well as the assembly tolerance is large, not only does not accurately perform the operation of each mode, but also the frequent operation failures caused by a large number of followers and solenoids, the reliability of the mechanism is lowered There was this.

The present invention has been researched and developed to solve the conventional problems as described above, the object of the present invention is to rotate the cam gear to which the power of the drive mechanism is transmitted in one direction and to form a mode conversion groove to operate for each mode at the same time. In addition, by using one follower, a plurality of solenoids and followers that drive and control the cam gear at the same time driving each mode of the tape can be eliminated, thereby reducing material cost, the number of parts and the assembly labor. The present invention provides a mode converter for headphone stereo that can prevent malfunctions due to tolerances and improve reliability of mechanism operation.

Features of the present invention for achieving the above object, in the headphone stereo for operating the tape for each mode to play the sound recorded on the tape or to record the external sound on the tape, the driving force of the drive mechanism is transmitted And a repeating gear for driving the tape to be driven on the main base, and a first idler gear coupled by a bracket is geared to one side of the relay gear, so as to transmit power to a plurality of gear groups mounted on the main base. The arm is rotated around the hinge is installed, and the mode conversion means is geared with the first idle gear in order to move the lever change which is in contact with the arm in the left and right direction during the conversion of each mode of the tape. .

Hereinafter, a preferred embodiment of a mode conversion apparatus of a headphone stereo according to the present invention will be described with reference to the accompanying drawings.

1 is a view showing a headphone stereo mode conversion apparatus according to the present invention, the main base 10 having a plurality of components installed in the main body 10 relay gear 11 to relay the power driven in the drive unit within a predetermined section Is rotatably mounted by the hinge 12, and the relay gear 11 is movably coupled to the first idler gear 13 and the bracket 14 to transmit power, and the first idler gear is coupled to the relay gear 11. (13) On both sides, cam gears 17, which are mode switching means that are rotatably fixed by the second idler gear 15 and the fixed shaft 16, are geared.

In addition, the cam gear 17 is provided with a mode conversion groove 17a capable of switching modes of reverse play (REV) rewind (REW), fast forward (FF), and play (FORD PLAY). The idle gear 15 is gear-fitted with a clutch gear 18 and a first reel gear 19 on which a tape is seated.

A plurality of play gears 20, 21, 22 are geared to the clutch gear 18, and a second reel gear 23 is geared to one side of the play gear 22, and the first reel is engaged. The gear sensor 24 is geared between the gear 19 and the play gear 20.

Meanwhile, a lever change 25 having a horizontal hole 25a formed at one end thereof is inserted into the fixed shaft 16 fixed to the center of the cam gear 17 so as to be movable while sliding in left and right directions. A pin (not shown) fitted to the mode conversion groove 17a of the cam gear 17 is mounted on one bottom surface on which the horizontal slot 25a of the lever change 25 is formed, and the upper surface of the lever change 25 The contact piece 26 is integrally formed with the.

In addition, an arm 29 is fixed to the upper side of the lever changer 25 so as to be rotated clockwise or counterclockwise about the hinge 27, and the arm 28 is fixed. At both ends of the bent piece 29 is formed so as to be in contact with the contact piece 26 of the lever change 25 to transmit power to each gear group in each mode.

Referring to the operation of the mode conversion device of the headphone stereo according to the present invention configured as described above in detail as follows.

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 19 and 24 mounted on the main base 10, the driving mechanism is rotated while the tape is in the forward play mode. Power is transmitted to the relay gear 11, and the first idler gear 13 coupled by the relay gear 11 and the bracket 14 is rotated clockwise to transmit power to the rotation system.

In addition, while rotating the geared cam gear 17 on one side of the first idler gear 13 in the counterclockwise direction, the tapered second idler gear 15 and a plurality of gears are rotated to drive the tape. .

Then, when the conversion switch mounted on the main body is pressed in order to convert the normal running tape into a mode such as reverse play, rewind, fast forward, and the like, the lever change 25 is formed along the mode conversion groove 17a formed in the cam gear 17. As the pin mounted on the bottom surface is moved, the lever change 25 is slid to the right along the fixed shaft 16 of the cam gear 17.

In addition, the bending piece 29 of the arm 28 in contact with the contact piece 26 of the lever change 25 is rotated counterclockwise around the hinge 27 to power each gear group of the rotation system. This is passed to perform the mode-specific operation.

As described above, according to the mode conversion apparatus of the headphone stereo according to the present invention, a plurality of solenoids and followers to drive and simultaneously control and reverse the cam gear during each mode of the tape (reverse play, rewind, fast forward, play) By eliminating the material cost, the number of parts and the number of assembly can be reduced, as well as the malfunction due to the error of the assembly tolerance is prevented in advance can improve the reliability of the mechanism operation.

Claims (2)

In the headphone stereo which operates the tape for each mode to reproduce the sound recorded on the tape or record the external sound on the tape, a relay gear for driving the tape by transmitting the driving force of the driving mechanism is mounted on the main base. The one side of the relay gear is geared to the first idle gear coupled by the bracket, the arm is rotated around the hinge so as to transmit power to a plurality of gear groups mounted on the main base is installed, the angle of the tape The mode conversion device of the headphone stereo, characterized in that it comprises a mode conversion means geared with the first idle gear to move the lever change in contact with the arm in the left and right direction for each mode conversion. The mode changer of the headphone stereo according to claim 1, wherein the mode converting means comprises a cam gear having a mode converting groove for inserting a horizontal hole formed in the lever and inserting a pin mounted on a bottom surface thereof. Device.