JPS6112600Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to the invention of a locking operation mechanism for a locking device for a tape player, which ensures the locking state of the tape player, and eliminates the need for extra load against impacts, overstrokes, etc. The object is to provide a mechanism that can obtain stable locking operation with a minimum locking force.

In the past, various types of locking mechanisms have been used in tape players to hold the operating members in their respective operating states, but in these conventional devices, the locking relationship is not always stable, and There are disadvantages such as the need for extra operating force in response to impacts, overstrokes, etc. That is, such a conventional locking mechanism uses a reversing spring 54 as shown in FIG. It is inverted to lock the locking part 52 attached to the tip of the pivoting piece 56 to the engaging part 53 of the locking body 51, and then reversed to eject the locking part 52 as shown in FIG. However, when using such a configuration, the reversing spring 54 is quite large, and therefore, it is necessary to have a large reversing operation area, and an impact force is generated when engaging and disengaging the reversing spring 54.
Even with this impact, a fairly large operating force is required to ensure a secure locking state. Furthermore, a locking body 5 having an engaging portion 53 as shown in FIG.
1 is provided to be rotatable about its pivot point 57, and the end surface of the engaging portion 53 is formed as an inclined edge 53a, and the locked portion 5 to which the locking portion 52 is attached is provided.
8 as shown in Figure A, the inclined edge 53a joins the locking part 52, thereby pushing up the locking body 51 as shown in Figure B, and further pushing it to lock it. When the portion 52 reaches the engaging portion 53, the state shown in FIG.
However, in this method, the locking body 51 is once pushed out and then moved back to the old position and rotated to lock. 58 requires a certain amount of overstroke, and the locking body 51 moves back after being in a floating state due to the above extrusion, resulting in unstable operation.

The present invention differs from the conventional ones as described above, and was developed through repeated research to achieve accurate locking operation with the minimum required locking force. (b) an operating member that performs a desired operation; and (c) an operating member that is rotatably provided with respect to the operating member and that engages the above-mentioned operating member. (d) the locking member has a locking portion for engaging with the holding member and is provided with a passive portion for the holding member; (d) the locking portion engages with the locking portion by the driving force of the operating member; a locking portion that locks the passive portion of the locking member, which is activated by maintaining engagement by the engaging portion, to the locking portion; 1. A locking operation mechanism in a tape player locking device characterized by comprising: a member; and (e).

That is, to explain the specific embodiment of the present invention shown in the attached drawings, as shown in FIG. A belt 15 driven by a pulley 22 of a motor 21 is wound around each of the flywheels 5, 5, and the flywheels 5, 5 are rotated by the motor 21, which is a conventional tape player of this type. The same is true. A small gear 5a is provided coaxially with either one of the flywheels 5, 5 as described above, and an interlocking gear 6 separately provided on the deck 20 is engaged with the small gear 5a. Another rotary gear 4 faces the small gear portion 6a as an operating member that operates in response to power, and a partial cutout portion 4a is formed in a part of the circumferential gear of this rotary gear 4. In the ejected state as shown in FIG. 1, the small gear portion 6a is located in the partial cutout portion 4a, forming a state in which the engagement with the circumferential gear of the rotary gear 4 is released. . Also, there is a rotary plate 40 which is an operating member, which is attached coaxially with the rotary gear 4 which is an operating member, and on its circumferential side there are an engaging portion 23 of a gear lock piece 2 and an interlocking piece 3, which will be described later.
A chordal notch 41 and an engagement notch step 43 are formed in the relationship shown in the figure in accordance with the arrangement position of the actuating portion 30a, and a deck 2 is provided on the upper surface thereof.
0 is provided with a head plate 10 as an operating member which is slidably provided along a long hole 10d and performs a desired operation, and the rotating plate 40 is provided with respect to the lock member 7 provided on the head plate 10. A pin-shaped engaging portion 42 of the rotary plate 40 is provided on one side thereof, that is, a pin-shaped engaging portion 42 of the rotating plate 40 is provided so as to be engaged with and disengaged from the engaging portion 71 of the lock member 7. The lock member 7 is attached to a mounting portion 1 formed at the back of the head plate 10.
As shown in the figure, it is rotatably attached to 0b by a pivot 10a, and a locking part 71 is formed on one side of the distal end thereof to face the rotation range of the engaging part 42. A passive part 72 is provided on the lower surface of the tip.
The passive part 72 faces the other end side of the holding member 8 provided with the adsorbent 83 at one end, and the other end side of the holding member 8 has a An engaging portion 81 and a locking portion 82 are provided as inclined ends. This holding member 8 was pivotally mounted on the gear 20 coaxially with the previously described interlocking gear 6, and its action was guided through an arcuate guide hole 84, and the adsorption member 83 was provided with an adsorption plunger 9. When the suction plunger 9 is energized, the holding member 8 is fixed.

A slide piece 1 is separately slidably attached to the inner part of the deck 10, and an engaging part 11 at one end thereof engages with another engaging protrusion 24 of the gear lock piece 2 described above. It is bent downward, and an operating section 12 is provided at the other end, so that when an electromagnetic mechanism is activated by a tape end detection signal when loading a tape pack, fast forwarding, or rewinding, the tape can be moved upward in FIG. It is configured to function as shown by arrow a. As shown in the figure, the gear lock piece 2 and the interlocking piece 3 described above are provided so as to be rotatable about the common pivot shaft 30 with at least their proximal ends overlapped. 2 and between the interlocking piece 3 and the deck 20, springs 29 and 39 are provided, respectively. That is, the locking portion 24 of the gear lock piece 2
A spring 29 provided between one side near the deck and the deck side applies a force to rotate the gear lock piece 2 in the counterclockwise direction in FIG. Another spring 39 provided between the more extended protrusion and the side edge of the deck applies an acting force that rotates the interlocking piece 3 in a clockwise direction opposite to that of the gear lock piece 2. The operating section 30a described above
is always in pressure contact with the chord-shaped notch 41 of the rotary plate 40.

To explain the operation of the device according to the present invention, as described above, it uses a known electromagnetic mechanism (not shown) that is activated by a tape end detection signal during tape pack loading, fast forwarding, and rewinding. As a result of this action, the slide piece 1 attached to the upper side of the deck 20 in FIG. 1 is slid in the direction indicated by the arrow a in FIG. The slide piece 1 is moved to the position indicated by .
, the engaging portion 11 provided on the opposite side of the operating portion 12 is also moved in the same direction, and such an engaging portion 1
1 causes the gear lock piece 2 engaged therewith to rotate in the direction of arrow b against the acting force of the spring 29. That is, in the ejected state as shown in FIG.
The restoring force of the spring 39 acts on one end of the chord-shaped notch 41 of the rotary plate 40 and the rotary gear 4, which is the operating member, so as to rotate clockwise in FIG. As already mentioned,
Such rotational force application causes the engaging protrusion 23 of the gear lock piece 2 to engage with the notch step 43, thereby forming a fixed locking relationship as shown in the figure. is rotated in the direction of arrow b, and the engagement between the engaging protrusion 23 and the notch step 43 is disengaged. Therefore, in the above-mentioned ejected state, the interlocking gear 6
The partial notch 4a that was exposed to the small gear part 6a of
The portion is moved by the rotation of the rotating gear 4 as indicated by arrow c, and engagement between the small gear portion 6a and the rotating gear 4 is obtained.

On the other hand, as for the motor 21, it is generally known that when a tape pack is attached, the power switch is turned on and its rotation is obtained. . Due to such engagement, the rotating gear 4 is continuously rotated, and the retainer 42 provided on the rotating plate 40 acts on the locking portion 71 of the locking member 7 as shown in FIG. That is, the locking member 7 is acted on as indicated by arrows e and f shown in FIG. A force is obtained to pull the locking member 7 (therefore, the head plate 10) downward in FIG. Only the pulling force according to the force component f is obtained, and the head plate 1
0 is pulled out and moved forward, and its head is pushed out in the direction in which it is pressed against the tape of the attached tape pack.

If the power is cut off during the forward movement of the head plate 10 as described above, the head plate 10
The rotating gear 4 and the rotating plate 40 are both in a stopped state due to the power being turned off, so the engaging part 42 catches on the locking part 71 and the locking member 7 also tries to move back. state, the retracting force of the locking member 7 is applied via the passive part 72 to the holding member 8, which has already lost the power and has lost its adsorption force.
As shown by the imaginary line in FIG. 1, the locking portion 7
1 gets over the engaging portion 42 and moves back to the solid line state again by the action of the spring 85. Further, in the forward movement of the head plate 10 as described above, the passive portion 72 of the locking member 7 reaches the locking portion 82 of the holding member 8, and the locking member 7 rotates to achieve the locked state as shown in FIG. Then, the engagement part 42 and the locking part 71 are disengaged, and the passive part 72 is moved to the locking part 8.
2 to hold the head plate 10 in the playback position. After forming such a state, the rotary plate 40 further rotates, and the partial notch 4a of the rotary gear 4 as described above reaches the engagement position with the small gear portion 6a, as shown in FIG. In other words, the rotational force by the interlocking piece 3 of the rotary plate 40 is stopped by the engagement between the engaging part 23 and the stepped part 43 of the gear locking piece 2, and the gear is stopped in preparation for the next operation.

In addition, in the playback state formed as described above, when the tape player receives a fast forward rewind or eject operation, the power to the suction plunger 9 is turned off, so that the suction lock of the holding member 8 is When the state is released, the holding member 8 rotates clockwise due to the force of the locking member 7 to retreat, and the locking relationship between the holding member 8 and the passive part 72 is changed as shown in FIG. is released, and the lock member 7 is moved back together with the head plate 10. Such retraction of the head plate 10 is similarly obtained even when the entire power supply to the tape player is turned off.

In the present invention as described above, the operation of the operating member 40 is not limited to rotational operation as in the previously illustrated embodiment, but may also be linear reciprocating operation. That is, since the actuating member 10 itself, such as a heald plate, which performs the intended operation, is linearly actuated, it is clear that the operating member that operates it can be linearly actuated without any problem.

According to the present invention as described above, the locking member 7 applies the operating force of the rotary gear 4, which is the operating member, under the condition that the locking member 7 is joined and fixed to the passive part 72 of the holding member 8, which is fixed by suction by the suction plunger 9. The operation is reliable and the engagement portion 42 is accurately locked, especially the operation member 4 of the engagement portion 42.
It is possible to accurately operate parts such as the head plate 10 with the operating force of It is a device that can obtain a preferable operating relationship without the need for , and is a highly effective device in practical terms.

[Brief explanation of the drawing]

The drawings show embodiments of the invention,
Figure 1 is a plan view showing the ejected state of a tape player equipped with a locking mechanism according to the present invention;
Figures 4 to 4 are explanatory diagrams showing step-by-step the operational relationships of the locking member and holding member, and Figures 5 and 6 are explanatory diagrams showing the operational relationships of typical examples of conventional locking mechanisms step-by-step. Figure. In these drawings, 1 is a slide piece, 2 is a gear lock piece, 3 is an interlocking piece, 4 is a rotating gear that is an operating member, 4a is a partial notch thereof, 5 is a flywheel, 6 is an interlocking gear, and 6a is a small portion thereof. Gear part, 7 and 8a are locking members, 8 is a holding member,
9 is a suction plunger, 10 is a head plate which is an operating member, 10a is a pivot of a lock piece, 20 is a deck, etc.
30 is a common axis, 30a is an operating part of the interlocking piece, 40
41 is a rotating plate, 41 is a chord-like notch thereof, 42 is an engagement portion thereof, 43 is an engagement notch step thereof, 71 is a locking portion in a lock member, 72 is a passive portion, and 81 is an inclined engagement portion of a guide member. 82 is a lock portion, 83 is a suction piece, and 84 is a guide hole.

Claims (1)

[Claims for Utility Model Registration] (a) An operating member that has an engaging portion for the locking member and receives a driving force to engage and disengage; (b) an operating member that performs the intended operation; (c) (d) a locking member that is rotatably provided with respect to the operating member and has a locking portion for engaging with the engaging portion of the above-mentioned operating member, and is provided with a passive portion with respect to the holding member; (d) the engaging portion; has an engaging portion that suppresses the actuation force for releasing the engagement when engaged with the locking portion due to the driving force of the operating member, and is provided with a lock portion, and the locking portion can maintain the engagement by the engaging portion. A locking operation mechanism in a tape player locking device, characterized in that it is comprised of: (e) a holding member that locks the passive part of the activated locking member to the locking part;