JPH0610506Y2 - Lever operation mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a mechanism for holding and releasing a lock of an operation lever for performing each mode in a tape player.

[Technical background of the invention and its problems] Each mode such as play, stop, fast-forward rewind, and loading / eject in the tape player is performed by pushing the lever of each mode and holding the lock.

Conventionally, a suction plunger has been adopted as such a lock holding means, and the lever is locked by holding the lock link at the lock position by sucking the plunger link to the plunger. At the end of each mode, the suction plunger is turned off, the plunger link is opened, and the lock link is moved in the releasing direction to unlock each lever.

FIG. 5 shows an example of a fast-forward rewinding lever operating mechanism among such conventional lever operating mechanisms.

In FIG. 5, a plunger link 43 and a lock link 44 are provided so as to overlap each other between the fast-forward rewind lever 41 and the suction plunger 42 so that they can rotate with respect to the same support shaft 45. The plunger link 43 is provided with a suction piece 43a, a pressing portion 43b that presses the lock link 44 in the releasing direction, and a return spring 43c that urges the lock link 44 in the suction direction, and the lock link 44 has a fast-forward rewind lever 41. A lock pin 44a that engages with the engaging portion 41a of the
The lock springs 46 urge the elements 3 and 44 in the direction in which they overlap each other. Note that reference numeral 41b in the drawing is a return spring that urges the fast-forward rewind lever 41 in the return direction.

That is, when performing the fast-forward rewinding mode, first, the one fast-forward rewinding lever 41 is pushed by the fast-forward rewinding command, and the plunger link 43 is attracted to the attracting plunger 42, so that the lock link 44 moves in the same direction. The lock pin 44a is rotated to engage with the engaging portion 41a of the fast-forward rewind lever 41 to hold the lock. Further, when releasing the fast-forward rewind mode, by releasing the plunger link 43 from the suction plunger 42 by a release command, the pressing portion 43b formed on the plunger link 43 is rotated counterclockwise, The lock link 44 is rotated in the same direction to disengage the lock pin 44a from the engaging portion 41a of the fast-forward rewind lever 41, the lever 41 is unlocked, and the spring is returned to the standby position by the urging force of the return spring 41b. .

Therefore, the force relationship relating to the lock holding is as follows: holding force by the suction plunger> biasing force of the lock spring> biasing force of the return spring related to the lever> biasing force of the return spring,
It is necessary to set balance so that Therefore, if the balance is lost even a little, the lever cannot be held and the lever cannot be released. It should be noted that such a defect exists not only in the fast-forward / rewind lever but also in each mode lever.

[Object of the Invention] The present invention has been proposed in order to solve the above-mentioned drawbacks of the prior art, and the object thereof is to facilitate the lock operation of the operation lever and to reliably hold the lock. To provide a lever operation mechanism.

[Summary of the Invention] The lever operation mechanism of the present invention has a lock portion that engages with the engagement portion of the operation lever to lock, and a lock lever provided with a lock spring in this lock portion, and an adsorption at one end. A first lever having a suction portion that is suction-held by the plunger, and a pressing portion that abuts the lock portion of the lock lever and a pressing portion that presses the protrusion of the second lever are formed at the other end, and the tip end. A second lever having a protrusion that engages with the operation lever is rotatably supported by the same shaft, and the first lever and the second lever are integrated in the direction of releasing from the suction plunger. The first lever and the lock lever have an independent relationship in the locked position of the operation lever, and when the lever is released, the first lever and the lock lever are configured to integrally operate in the release direction. Lock operation Is easy and the lock is held securely.

[Embodiment of the Invention] An embodiment in which the lever operating mechanism of the present invention is applied to the fast-forwarding and rewinding lever will be specifically described with reference to FIGS. 1 to 3.

* Structure * In Figure 1, FF lever 1 and REW lever 2 are
It is incorporated in the tape player so that it can move back and forth, and is normally urged forward by return springs 3 and 4. Further, step-shaped engaging portions 5 and 6 with which the lock member engages when the levers 1 and 2 are pushed in are provided on the side edges on the tip end side. And these FF / REW
When the levers 1 and 2 are pushed in, the head plate on which the head is mounted is moved to a predetermined position, and the fast-forward rewinding operation is performed in the operating direction of the lever.

On the other hand, in the vicinity of the tips of the levers 1 and 2, a lock lever 7 that engages with the engaging portions 5 and 6 and locks the levers 1 and 2 in an operating position is rotatable about a shaft 8. It is provided. A lock portion 9 that engages with the engagement portions 5 and 6 of the levers 1 and 2 is formed at the tip of the lock lever 7, and a lock spring 10 is provided between the lock portion 9 and the chassis of the tape player. Is arranged to urge the lock portion 9 to rotate toward the engaging portions 5 and 6 of the levers 1 and 2.

Further, the shaft 8 supporting the lock lever 7 has a first lever 13 having a suction portion 12 with a suction plunger 11.
And a second lever 14 which is rotatable together with the first lever or independently of the first lever. The first
The lever 13 is provided at one end with a suction portion 12 that is suction-held by the suction plunger 11, and at the other end, a pressing portion 15 that comes into contact with the lock portion 9 of the lock lever 7 and a protrusion portion of the second lever 14. A pressing portion 17 that presses 16 is formed, and a return spring 18 that biases the first lever 13 to the suction position is provided. On the other hand, a protrusion 16 protruding toward the levers 1 and 2 is provided at the tip of the second lever, and the first and second levers 13 and 14 are connected by a lock release spring 19. Then, the first lever and the second lever are integrally rotated in the direction in which the first lever is released from the suction plunger 11, and the first lever 13 and the lock lever 7 are FF / REW. Although the levers 1 and 2 are independent at the locked position, they are integrally rotated in the releasing direction at the lever releasing position.

* Operation * The operation of the lever operation mechanism of this embodiment having such a configuration will be described.

1) Play state When a play command is input to the tape player, the motor is rotated and the plunger 11 is energized at the same time, and the first lever 13 is activated.
The suction part 12 is sucked. Further, the FF lever and the REW levers 1 and 2 stand by at the return position by the urging force of the return springs 3 and 4. (See FIG. 1).

2) Fast-forwarding or rewinding state Next, when the fast-forwarding / rewinding command is applied, the lock lever 7 is pushed back against the force of the return springs 3 and 4 and the FF / REW levers 1 and 2 are pushed in. , 2
Is pressed in the counterclockwise direction by the engaging portions 5, 6 of the lock lever 7, and then the lock portion 9 of the lock lever 7 is urged in the clockwise direction by the locking spring 10, so that the engaging portions 5, 5 of the levers 1, 2
Engage with 6 to lock levers 1, 2. In addition, the protrusion 16 formed on the second lever 14 is also pressed by the engaging portions 5 and 6 of the levers 1 and 2, and the second lever also rotates counterclockwise to displace the lock releasing spring 19. It has stopped in the state. At this time, the first lever remains attracted to the attraction plunger 11. (Refer to FIG. 2) Even if the excitation of the plunger is not released during the FF operation,
By pressing the REW lever, it is possible to rotate the lock portion 9 of the lock lever 7 in the lever release direction and unlock the FF lever.

3) Release state of fast-forward rewind mode Next, when the fast-forward rewind operation is completed and a release command is issued, the excitation of the suction plunger 11 is released, and the restoring force of the lock release spring 19 causes the first lever 13 to move. Rotates counterclockwise and stops at a position integrated with the second lever 14. At this time, the pressing portion 15 of the first lever comes into contact with the lock portion 9 of the lock lever 7, and the lock lever 7 is flipped.
When the REW levers 1 and 2 are rotated in the unlocking direction, the levers 1 and 2 are returned to their original positions by the urging force of the return springs 3 and 4. (See FIG. 3) As described above, in the present embodiment, the lock spring is provided in the lock portion of the lock lever, so that the lock can be held securely as compared with the conventional locking method. Further, since the lock portion of the lock lever is always biased in the lock direction by the spring, it is sufficient to push the lever to the lock position, and it is not necessary to overpush the lever as in the conventional case, and the operation becomes easy. Further, since the first lever having a suction portion with the suction plunger is independent of the lock lever, no external force is directly applied to the plunger when the FF / REW lever is pressed. Also, FF / REW
The lock holding of the lever is stable regardless of the attraction force of the plunger.

* Other Embodiments * The present invention is not limited to the above-mentioned embodiment, and as shown in FIG. 4, when the operation lever is pushed in, the second lever is displaced so that the head plate can be displaced. May be used for displacement.

That is, in FIG. 4, when the FF / REW levers 1 and 2 are pushed in, the head roller 21 provided on the head plate 20 is moved rightward in the drawing by the engagement hole 22 formed in the levers 1 and 2 and having a tapered portion. As a result, the head plate 20 also moves to the right in the figure. Then, the engagement pin 25 provided at the end of the second lever 24 is rotated downward in the drawing by the tapered portion of the engagement hole 23 provided in the head plate 20, and the second lever 24 is unlocked by the spring for unlocking. Stop with 26 displaced. On the other hand, when the levers 1 and 2 are further pushed in, the locking portions 28 of the lock link 27 are engaged with the engaging portions 5 and 6 at the tips thereof,
The lever is locked.

In addition, the support shaft 29 of the second lever 24 has a suction portion 12 with the suction plunger 11 at one end, and a pressing portion 30 for pressing the end portion of the lock link 27 is formed in the center portion. A lever 31 is provided, and the first lever 31 and the second lever 31
A lock release spring 26 is provided between the lever 24 and the lever 24. Further, the lock link 27 has a lock portion 2
A torsion spring 32 for urging 8 in the locking direction is provided. The same effect can be obtained also in the lever operation mechanism having such a configuration.

Further, the muting signal switch for eliminating the sound generated when the tape is wound in a high bundle during the fast-forward rewind operation is conventionally provided on the fast-forward rewind lever. It may be provided on the lever.

Needless to say, the present invention can be applied not only to the fast-forward rewind lever but also to various operation levers.

[Effect of the Invention] As described above, according to the present invention, the lock lever is provided with the lock spring, and the first lever, the second lever, and the lock lever are independent of each other. It is possible to provide a lever operation mechanism that facilitates the lock operation and can surely hold the lock.

[Brief description of drawings]

1 to 3 are plan views showing an embodiment of a lever operating mechanism according to the present invention. FIG.
The figure shows the state of pressing the lever by the fast-forward rewind command, the third
4 is a plan view showing another embodiment according to the present invention, and FIG. 5 is a plan view showing an example of a conventional lever operating mechanism. 1, 2 ... fast-forward rewind lever, 3, 4 ... return spring, 5, 6 ... engaging portion, 7 ... lock lever, 8 ...
… Shaft, 9… Lock part, 10… Lock spring, 11…
... Suction plunger, 12 ... Suction part, 13 ... First lever, 14 ... Second lever, 15 ... Pressing part, 16 ... Projection part, 17 ... Pressing part, 18 ... Return spring, 19 ... ... unlock spring, 20 head plate, 21 head roller, 22 engagement hole, 23 engagement hole, 24
...... Second lever, 25 ...... engagement pin, 26 ...... lock release spring, 27 ...... lock link, 28 ...... lock part,
29 ... Spindle, 30 ... Pressing part, 31 ... First lever,
32 ... torsion spring, 41 ... fast-forward rewind lever, 42 ... suction plunger, 43 ... plunger link, 44 ... lock link, 45 ... support shaft, 46 ...
Lock spring.

Claims (2)

[Scope of utility model registration request] 1. A tape player that performs various modes by pushing an operating lever and holding it in a locked state, comprising: a. A suction plunger that holds the operating lever locked. b. A first lever that is axially supported by the tape player base and has a suction portion that is suction-held by the plunger at one end and a pressing portion that abuts the lock lever and the second lever at the other end. c. A second lever pivotally supported by the base of the tape player and rotated by an operation lever. d. A lock release spring arranged between the first lever and the second lever. e. Lock lever that locks the operation lever. f. A lock spring provided on the lock lever for holding the lock. g. A return spring for returning the first lever to the suction position. A lever operation mechanism comprising the above a to g. 2. The lever operating mechanism according to claim 1, wherein the operating lever is a fast-forward rewinding lever for performing fast-forwarding and rewinding.