KR940003659B1 - Semilogic deck for automobile - Google Patents

Abstract

Using jointly the mechanical (manual) mode for eject mechanism and the logic mode for tape driving mechanism, this semi logic car deck enables to improve reliability and reduce its price. The car deck having the eject mechanism comprises; a tape driving mechanism (20) for bidirectional driving selectively; a two speed motor (M) for providing a rotational force to a flywheel (11) and the tape driving mechanism; a solenoid (SOL) for controlling a program switching operation and a play operation; a head sash (15); a program arm (14) for controlling a pinchroller operation (13).

Description

Semi-logic deck for cars

1 is a full exploded perspective view of the present invention.

Figure 2 is an assembly plan view of the present invention the cassette tape ejected state.

3 is a front view of a state in which the motor and the solenoid member in FIG. 2 are removed.

4 is an assembled bottom view of the present invention.

5 is a view showing a state where the cassette tape is seated on the reel in the state of FIG. 2 (with the motor and the cassette holder arm removed).

6 is a front elevational view (with solenoid removed)

7 is a diagram showing a program switching process in the present invention.

8 shows the operation state of the tape drive device of the present invention.

a is a diagram showing a play standby state;

(Solenoid ‘off’)

b is a diagram showing a process in which a solenoid is 'on' in the state of a and the program transition is executed.

9 is an exploded perspective view of the main portion of FIG.

10 is a shape diagram of a cam gear used as a program switching member in the present invention.

a is a planar figure.

Figure b is a cross-sectional view along the line AA of Figure a.

11 is a view showing the operating state of the flavor according to the rotation operation of the cam gear (viewed from the bottom) in the present invention.

FIG. 12 is a time chart showing the operating states of a switch, a solenoid, and a motor during each operation conversion in the present invention.

13 is a program switching mechanism diagram of the present invention,

a is the degree of correlation between the program gear and the program idler after the FORWORD program changeover.

b is a correlation between program gear and program idler gear after reverse program switching.

* Explanation of symbols for main parts of the drawings

1 cassette tape 2 cassette holder

3: cassette holder arm 4: ejector

5: cassette lock lever 6: main eject lever

6 ′: Secondary ejector lever T, S: Reel

10: main chassis 11,11 ′: fly wheel

12,12 ': Capstan shaft 13,13': Pinch roller

14: program arm 15: head chassis

15a: head chassis shaft 20: tape drive device

21: gear chassis 21a: stopper

22: program gear 22a: turnaround

23: Play Gear M: Motor

SOL: Solenoid 32: Shaft

24: idler gear 24a: small gear

25: Program idler gear 26: Cam gear

26a: track groove 26b: weapon fisherman

26c: eccentric cam 27: idler gear

27a: Small gear 28: Drive pulley

16,16 ′: Belt 29: Cam lock lever

29a: downward axis 30: play lever

30a: bending surface 30b: central axis

51: lock spring 51a: Jersey

SW ₁ : Start switch 18: Head stopper

19,19 ′: Guide pin 31: Connecting support lever

39: wire connector 47: head stopper spring

48: guide roller 49: program arm connecting shaft

52: lock spring holder

The present invention relates to a semi-logic card deck using both a mechanical (manual) method and a logic method.

In general, Autoreverse Card Deck can be classified into pure manual type and logic type. In the former case, the function of ejecting and inserting cassette tape into and out of the deck and the operation of tape driving device driving tape are The latter means that it is configured to be done in a manual way, the latter case means that all the operations are performed automatically, the former is expected to reduce the price, but there is a disadvantage that can not achieve high quality, The latter had the drawback that the price was so expensive that it was not practically available.

In addition, in the former case, since the program switching operation is performed manually, the incidence of malfunctions is very high, and when an error such as a tape cutting occurs, there is a problem that it can be difficult to detect.

The present invention, in consideration of the defects of the general deck for automobiles as described above, the operation function for the ejection device to be made manually, but by switching all the functions of the tape drive device by the button operation program switching and each operation function This is made by the automatic execution, it will be described in detail based on the accompanying drawings as follows.

The semi-logic deck of the present invention is largely composed of a mechanical type cassette tape ejection device for automatically inserting and extracting cassette tapes and a tape drive device for automatically driving a tape.

That is, in the present invention, the cassette tape ejecting apparatus includes a cassette holder arm 3 and a cassette holder arm 3 for raising and lowering the cassette holder 2 into which the cassette tape 1 is inserted, as shown in FIG. ) Is composed of a cassette lock lever 5 for lifting) and an eject lever 6 for rotating the cassette lock lever 5 (the same configuration is the same as the manual eject mechanism of a general autoreverse cassette). Do).

The cassette holder 2 is installed on the bottom surface of the cassette holder arm 3 so as to always maintain a horizontal state during the up and down operation, and the cassette holder 1 has a cassette tape 1 mounted thereon during ejection operation. The ejector 4 for pushing out from 2) is mounted on the eject lever spring 8 connected to the eject lever 7 so as to slide.

The eject lever 7 is reciprocated left and right about the axis a and is connected to the main eject lever 6 through an eject rod 9 to restrict the operation.

The cassette holder arm 3 pivots about an axis b and is connected to an axis c protruding from the cassette lock lever 5.

The cassette lock lever 5 is rotatably mounted on the shaft d arranged on the side of the main chassis 10, and one end of the eject spring 42 provided on the same shaft d is supported on the upper left end thereof (eject speech). The other end of the ring 42 is supported by a lock piece 6a 'protruding horizontally to the middle of the auxiliary eject lever 6'). The upper right end of the cassette lock lever 5 locks the left end of the main eject lever 6 to prevent the eject lever 6 from moving to the right side due to the attraction force of the spring 43. 44) is installed and the cassette lock lever 5 is pulled to the right axis.

The auxiliary eject lever 6 'is connected to the main eject lever 6 and is urged to the right by the spring 45, and the movement arm 17 is locked by its distal end.

The movement arm 17 is subjected to the force to rotate clockwise by the movement arm spring (50).

In the present invention, the motor (M) for supplying rotational force to the capstan shaft (12) (12 ') and both reels (T) (S) is a forward and reverse rotation motor having a two-speed (constant speed and double speed rotation) function The pulley 46 of the motor M is wound with a transmission belt 16 'for connecting two flywheels 11, 11' as shown in FIG. 4, and a drive pulley 28 provided in the gear chassis 21. ) Is wound around the transmission belt 16.

The configuration of the tape drive device 20 for driving program switching and tape in the present invention will be described; Normal reels (T) (S) are provided on both sides of the rear of the gear sash 21 at regular intervals, and in the center thereof, idler gears 24 with small gears 24a are provided, and small gears 24a are provided. The play gear 23 is engaged with the play gear 23 is moved to the left and right, that is, the T reel and the S reel in accordance with the rotation direction of the small gear (24a) is made to selectively engage.

On the left side of the idler gear 24, idler gears 27 having integrally formed small gears 27a are engaged with each other. Programmable idler gears 25 having limited angle ranges are engaged with small gears 27a. In addition, the program idler gear 25 is coupled to the program gear 22 having an inorganic gear, but after the program switching is maintained slightly spaced apart from the program idler gear 25 by the elasticity of the lock spring (51). .

A hemispherical protrusion 22a is downwardly protruded from the center lower surface of the program gear 22, and a ">" type stopper 51a formed at one end of the lock spring 51 is programmed at both ends of the protrusion 22a. The program gear 22 and the program idler gear 25 are slightly pressed as shown in FIG. 13 after the program change is completed because the program gear 22 is pressed in accordance with the switching operation to push the program gear 22 clockwise or counterclockwise. You are away from it. Thus, noise caused by friction between gears can be prevented.

In addition, the idler gear 27 is engaged with the small gear 28a integrally formed on the bottom surface of the driving pulley 28 to rotate left and right according to the rotation direction of the driving pulley 28.

In addition, the cam gear 26 is installed in front of the small gear 27a of the idler gear 27, and the small gear 27a is positioned at the right end of the inorganic gear portion 27b of the cam gear 26 so that the solenoid SOL is positioned. The cam gear 26 and the small gear 27a are engaged with each other during the 'on' operation.

The upper surface of the cam gear 26 has a track groove 26a of a predetermined size. And the downward axis 29a of the cam lock lever 29 is inserted in the track groove 26a, and the downward axis 29a is the inclined surface of the track groove 26a when the solenoid SOL is driven. (A) is pushed to rotate the cam gear 26 in the counterclockwise direction is to be engaged with the small gear (27a).

In the center of the bottom face of the cam gear 26, an eccentric cam 26c of a half moon type which is eccentrically moved with respect to the shaft e is formed, and the rear end of the play lever 30 is formed on the horizontal plane b of the eccentric cam 26c. The bent surface 30a protruding upward is abutted.

The play lever 30 is subjected to the force to rotate in the counterclockwise direction by the attraction force of the spring 41, and at the same time to the head chassis shaft 15a and the spring 40 protruded downward on one end of the head chassis 15. It is connected.

The play lever 30 is prevented from rotating in the counterclockwise direction by the stopper 21a protruding upward on the gear chassis 21, so that the play lever 30 is attached to the eccentric cam 26c of the cam gear 26. By maintaining the state where the bent surface 30a is in contact, the force is not applied to the eccentric cam 26c.

On the upper portion of the cam gear 26, the cam lever lever 29, in which the solenoid SOL is connected to the shaft bar 32, is installed to be rotatable about the axis f, and is rotated clockwise by the spring 33. And a downward shaft 29a protruding downward from the bottom thereof is inserted into the track groove 26a formed on the upper surface of the cam gear 26.

The start switch SW ₁ protruding on the upper surface of the main chassis 10 is provided on the substrate 34 provided on the upper right side of the gear chassis 21 to check the seating state of the cassette tape 1. Here, the switch SW ₂ indicates a mute switch.

In the present invention, one motor (M) and one solenoid (SOL) of the reel drive and program switching function is implemented, the solenoid (SOL) is installed in the gear chassis 21 to rotate the cam lock lever 29 is It is 'on' only during the play operation, and 'off' when it is not the play operation.

A head 35 in contact with the tape is installed in the head chassis 15 which is installed to be slidably moved in the center of the upper surface of the main chassis 10, and the front end thereof is located between both reels T and S. The head chassis shaft 15a to which the spring 40 mounted on the play lever 30 is connected is protruded downward.

A straight pinch roller spring 36 is provided at the rear end where the head 35 is provided, and both ends are pinched with pinch roller brackets 37 and 37 '.

Pinch rollers 13 and 13 'are installed in the pinch roller brackets 37 and 37' to press-fit the capstan shafts 12 and 12 'according to the rotational movement of the pinch roller brackets 37 and 37'. do.

In the capstan shaft 12 arranged on one side of the flywheel 11, a program arm 14 connected to the program gear 22 is pivotally arranged, and a play idler lever 38 is provided on the right side of the program arm 14. It is installed under the chassis 15 and rotates left and right around the axis g to control the left or right side of the pinch roll spring 36 so that the pinch rollers on the left and right sides are adapted to the capstan shafts 12 and 12 'according to the respective functions. I'm trying to press.

Referring to the effects of the present invention showing such a configuration as follows.

First, as shown in FIG. 1, the cassette tape 1 is pushed into the cassette holder 2, which is one component of the ejector, and the ejector 4 is pushed to the left in the drawing, and the left end of the main chassis 10 is pushed. Since the movement arm 17 installed in the slide is pushed on, the locked state of the auxiliary eject lever 6 'which is locked by the distal end of the movement arm 17 is released, and the auxiliary eject lever 6 is removed by the strong force of the spring 45. ′) Moves to the right.

At this time, the eject spring 42 is released in a state in which the support state of the “a” -shaped eject spring 42 supported by the lock piece 6 ′ a protruding from the auxiliary eject lever 6 ′ is released. Since the force pushing in the clockwise direction disappears, the cassette lock lever 5 rotates in the counterclockwise direction with the shaft d by the attractive force of the spring 44, and thus the cassette holder arm 3 coupled to the shaft C. ), The cassette holder 2 coupled to it is lowered in a horizontal state, and is mounted on both reels (T) (S). (In this case, the head chassis 15 is made, but the head chassis shaft 15a, which is connected to the head slide lever (not shown), is caught by the play lever 30, thereby preventing the complete entry. Freezes at spaced intervals (this is called Play Standby).

At this time, since the contact point is pressed by the cassette holder 2 in which the start switch SW ₁ protruding on the upper surface of the main chassis 10 is lowered, it is 'on' (actually off) while the deck is not shown. The microcomputer circuit (device) operates to check the abnormality of the tape (cut and release status).

Thus, if the cassette tape is properly seated and the tape is intact, the deck is in standby (play standby) state, which can operate all the modes.

In other words, if the cassette is not seated properly, or if the tape is cut or twisted, an operation of the deck becomes impossible, and the play operation is only possible in the normal state.

As such, when the normal state of the deck is detected by the start switch SW ₁ , the solenoid SOL is driven to pull its shaft 32.

Then, the cam lock lever 29 whose tip is connected to the shaft 32 is rotated in the counterclockwise direction (moving to the right side) with respect to the axis f, so that the downwardly protruding downward from the cam lock lever 29 The shaft 29a pushes the inclined surface a formed in the track groove 26a of the cam gear 26.

Therefore, the cam gear 26 is rotated slightly counterclockwise by this force and positioned at the point S at the arms 26b of the cam gear 26 as shown in FIG. 8A (seating of the cassette tape 1). At the same time, the motor M rotates and the rotational force of the small gear 27a integrally formed with the idler gear 27 rotates through the driving pulley 28 by the electric belt 16. However, at this time, since the teeth are not bite to each other because the small gear 27a is located at the arms 26b of the cam gear 26, the rotational force is not transmitted to the cam gear 26) Small gear 27a As the cam gear 26 is engaged with each other, the rotational force of the small gear 27a is transmitted so that the cam gear 26 rotates counterclockwise.

Therefore, as shown in FIG. 11, by the shape of the eccentric cam 26c which the play lever 30 which contacted the horizontal surface b of the eccentric cam 26c formed in the bottom surface of the cam gear 26 rotates, is rotated. Since the central axis 30b is moved to the starting point in the direction of “A”, the head chassis shaft 15a connected to the spring 40 is pulled at the same time. Full entry is possible and play action takes place.

That is, when the state is in the forward play state in the reverse state, as shown in FIG. 13B, the hemispherical protrusion 22a protruding downward from the lower gear gear 22 of the lock spring 51 is pushed as shown in FIG. 13B. The gear 22 is rotated counterclockwise and is spaced apart from the program idler gear 25 so that the small gear 27a of the idler gear 27 rotates in the opposite direction. The play idler gear 25 is rotated at a predetermined angle about the small gear 27a by the connecting support lever 31 connecting the two gears 27a and 25 so that the two gears 27a and 25 are rotated. ) Is engaged and the program gear 22 is rotated in the clockwise direction so that the tip of the program arm 14 coupled with the program gear 22 moves to the left.

(After program switching, the state of FIG. 13A is maintained; the upper end of the blocking piece 51a of the lock spring 51 pushes the downward return 22a of the program gear 22, so that the program gear 22 rotates clockwise. Spaced apart from the program idler gear 25, thus eliminating friction noise between gears during operation.)

Therefore, the play idler lever 38 connected to the program arm 14 rotates counterclockwise about the axis g so that the pinch roller springs may be connected to the right wing 38b when the head chassis 15 is fully entered. 36, the right side of the pinch roller 13 'is prevented from rotating into the right capstan shaft 12' and only the left pinch roller 13 is pressed against the left capstan shaft 12, The sound is reproduced by the head 35 because the tape moving from right to left is properly held (forward play).

In this forward play operation, when the F / F (cue) button (not shown) is pressed for F / F (forward fast forward) and cue (forward selection operation) operations, as shown in the time chart of FIG. Since the solenoid SOL in the on state is 'off' in the state of FIG. 8A, the downward axis 29a of the cam lock lever 29 is the P point of the tram hole 26a of the cam gear 26 as shown in FIG. 10A. The camshaft 26 restrains the cam gear 26, and the restraint state is released. The downward shaft 29a is again located at the S point of the track groove 26a which is in the initial state, and the cam gear 26 is eccentric. The play lever 30, which has been moved in the "A" direction by the cam 26c shape, also returns to its original position, and the head chassis shaft 15a of the head chassis 15 is pushed back slightly by the play lever 30. It becomes a state. (The head 35 and both pinch rollers 13 and 13 'are slightly apart from the tape and capstan shaft 12 and 12')

Then, the motor M is rotated (doubled) in the same direction (clockwise) as in the play, and the desired F / F and cue operation are executed.

Also, if the rewind (review) button (not shown) is pressed for rewind (reverse fast forward) or review (reverse selection operation) in the forward play operation, the solenoid (SOL) is turned off as in the F / F conversion operation. 'While being in a standby state with the reverse of the head chassis 15, the motor (M) is rotated counterclockwise to perform the rewind and review operation.

That is, when the motor M reverses in the play standby state, the driving pulley 28 rotates clockwise, and the idler lever 24 rotates clockwise, and the play gear meshed with the small gear 24a. 23 is moved to the right side (the connecting support lever 23a is installed to slip on the small gear 24a so that the left and right of the play gear 23 can be moved). will be.

In this case, the program idler gear 25 is rotated clockwise, and the front end of the program arm 14 is moved to the right as the program gear 22 engaged with it is rotated counterclockwise, and the play idler lever 38 is rotated clockwise. Is rotated clockwise, so the pinch roller 13 'on the right side is pressed against the right capstan shaft 12'. (I.e., when the small gear 27a rotates counterclockwise in the state of FIG. 13a, the program idler gear 25 moves downwardly about the small gear 27a, and itself rotates clockwise. (22) is rotated counterclockwise to move the tip of the program arm 14 from left to right to reverse switching)

On the other hand, when the play button is pressed in the F / F (cue) state, the motor M rotates in the clockwise direction (forward direction) and at the same time, the solenoid SOL is 'on' to pull the cam lock lever 29 to the right. Therefore, the cam gear 26 is engaged with the small gear 27a of the idler gear 27, and the vehicle is moved backward in the standby state by moving the play lever 30 in the "A" direction by the cam shape of the bottom of the cam gear 26. Since the head chassis 15 that has been fully entered enters the head 35 and the left pinch roller 13, the forward play operation is executed.

In addition, when the play button is pressed in order to switch to the forward play in the rewind (review) state, the motor M driven at the reverse double speed rotates in the forward low speed, and at the same time, the front end of the program arm 14 moves to the left. As a result, only the pinch roller 13 is pressed against the left capstan shaft 12, and the play operation is performed by the full entry of the head chassis 15.

However, in the rewind or review state, in the same rotation direction, that is, during the reverse play operation, the program switching to the reverse play by the reverse rotation operation of the motor cannot be performed.

That is, when the motor M rotates in reverse, the small gear 27a of the idler gear 27 is rotated counterclockwise. At this time, the cam gear 26 is operated by the 'on' operation of the solenoid SOL. When a small rotation is engaged with the small gear 27a, the cam gear 26 should turn clockwise along the small gear 27a, and the cam lock lever 29 on the inclined surface a of the cam gear 26. Since the down shaft 29a of the cam gear 26 is not able to rotate, the program change is impossible.

Therefore, in the present invention, the rotation direction of the initial motor M at all program switching is defined as the positive direction.

That is, in the present invention, when the reverse play operation is performed in the rewind, as shown in the time chart diagram, the cam gear is first converted from the reverse double speed to the forward constant speed by the 'on' operation of the solenoid SOL. The rotation of (26) allows the full entry of the head chassis 15, and then the motor M is rotated in the reverse direction at a constant speed so that the reverse play operation is performed.

In addition, in the conversion operation from F / F to rewind and rewind to F / F, if only the rotational direction of the motor M is rotated in the opposite direction, high-speed winding of the desired tape is achieved.

On the other hand, the stop operation in the play is made by the off operation of the solenoid (SOL), where the eject operation is performed manually.

That is, when the main eject lever 6 is manually pressed in the play standby state, the lock string 6'a protruding from the middle part of the lower eject eject lever 6 'is pushed down and the ejection spring of the letter' B 'is ejected. Since the cassette 42 is pushed, the cassette lock lever 5 is rotated clockwise about the axis d by the eject spring 42 to lift the cassette holder arm 3 so that the cassette holder 2 is raised. The cassette tape 1 seated on both reels T and S is separated from the reel, and the cassette tape 1 in the cassette holder 2 is pushed forward by the elastic force of the ejector 4. Will be.

In other words, the tape is ejected.

As described above, the present invention constitutes a cassette, but the operation of the eject apparatus is configured to be performed manually, and the tape drive prevention and program switching mechanism is logicized so that the conversion operation of each function is automatically executed by a button touch. At the same time, the price of high-reliability logic decks has been reduced, making it easy for anyone to purchase and use them.

Claims (9)

A cassette holder 2 into which a cassette tape 1 is inserted, a cassette holder arm 3 which raises and lowers the cassette holder 2, and a cassette holder arm 3 provided with an ejector 4, and a cassette for lifting the cassette holder arm 3; Eject apparatus comprising an eject lever (6) (6 ') for rotating the lever lever (5) and the cassette lock lever (5) and pushing the cassette tape (1) into the cassette holder (2) is a cassette holder. (2) is lowered, and the cassette tape (1) is seated on both reels (T) (S), and when the eject lever (6) is pushed, the cassette holder (2) is raised and the cassette tape (1) is withdrawn In the car deck, the tape drive device 20 is installed on the lower surface of the main chassis 10 in which the ejector is installed, and rotates the tape in the forward and reverse directions by the selective drive of both reels T. S, the tape drive. Two-speed motor M, which provides rotational drive force to the device 20 and the flywheels 11 and 11 ', Solenoid (SOL) for controlling the ray operation and program switching operation, is installed to be slidable in the center of the upper surface of the main chassis 10, the head chassis 15 located between the two reels (T) (S), The capstan shaft 12 is installed on the capstan shaft 12 arranged on one side of the flywheel 11 and rotates left and right in accordance with the rotational direction of the program gear 22 installed on the gear chassis 21 of the tape drive device 20 ( 12 ') is equipped with a program arm 14 for controlling the operation of the pinch rollers (13) (13') to ground the semi-logic deck for automobiles, characterized in that the drive and program switching function of the tape is performed automatically . Play gear which is positioned between both reels (T) (S) for forward and reverse rotation of the tape and the reels (T) (S) and selectively engaged with both reels (T) (S) according to the rotational direction of the motor ( 23), an idler gear 24 integrally formed with a small gear 24a for transmitting rotational force to the play gear 23, the idler gear 24 meshes with the idler gear 24, and a program idler gear 25 and a cam gear 26. The idler gear 27 integrally formed with the small gear 27a for transmitting the rotational force to (), the small gear 28a for transmitting the rotational force to the idler gear 27 at the bottom is formed and the motor by the belt 16 A driving pulley 28 connected to (M) and a small gear 27a formed on the idler gear 27 and a predetermined size inorganic gear 26b are formed on the upper surface of the downward shaft of the cam lock lever 29 ( 29a) is provided with a track groove (26a) for constraining guide, and the cam machine is formed in the center of the bottom surface with a half moon eccentric cap 26c (26), a bent surface (30a) located at the bottom of the cam gear 26, but protruding upward from the rear end thereof abuts against the eccentric cam (26c) of the cam gear (26) with the attraction force of the spring (41). A flare lever connected to the head chassis shaft 15a and the spring 40 protruding downward on one side of the front end of the head chassis 15 while receiving a force to rotate constantly counterclockwise from the center axis 30b. 30), which is located on the upper surface of the cam gear 26 and one side of the bottom of the cam shaft 26 is provided with a downward shaft 29a located in the track groove 26a and one end of the rear end is rotatably fixed to the gear chassis 21, The front end portion is provided with a cam lock lever 29 connected to the solenoid (SOL) shaft bar 32 and subjected to clockwise rotation by the spring 33 so that the driving and program switching operations of the tape are automatically executed. Tape drive device for automotive semi-logic decks. The semi-logic deck of claim 1, wherein the driving and program switching functions of the reel are performed by one motor (M) and one solenoid (SOL). The method of claim 1 or 2, wherein the tape drive device 20 is installed on the upper surface of the start switch (SW) _v main chassis 10, which is installed on the upper surface of the gear chassis 21, so that the cassette tape (1) Semi-logic deck for automobiles characterized in that the seating state can be checked. When switching the program from the rewind or review operation to the reverse play operation, the program switching method such that the motor (M) rotates clockwise before the solenoid (SOL) is driven and then rotates counterclockwise after the solenoid (SOL) operation, and the cassette The semi-logic deck for automobiles having a play method for preliminarily entering the head chassis 15 at a predetermined distance during the seating operation of the tape 1 and maintaining the play ready state. 3. The shape of the track groove 26a, which is formed on the upper surface of the cam gear 26, according to claim 2, Tape drive device, characterized in that formed in the form. The cam gear 26 is formed so that the small gear 27a of the idler gear 27 is mutually formed only when the solenoid SOL is driven. Tape drive device characterized in that the engagement. 3. The cam gear 26 according to claim 2, wherein the stop lever 21a is upwardly protruded on the gear chassis 21 to control the force of the play lever 30 to rotate counterclockwise, so that the cam gear 26 is 'off' of the solenoid SOL. Tape drive device characterized in that to maintain the contact state of the bent surface (30a) of the play lever (30) to the eccentric cam (26c). The hemispherical protrusion 22a is projected to the lower part of the center part of the program gear 22 which rotates the program arm 14 to the left and right sides, and the both sides of the protrusion 22a are provided in either side. A vehicle characterized in that the gear spring of the program gear 22 and the program idler gear 25 are spaced apart at regular intervals by arranging the lock spring 51 having the " > Semi-logic deck for.