JPS6141141Y2 - - 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 makes the locking device of a tape player reliable, does not require extra load against impact or overstroke, etc. The object is to provide a mechanism that can achieve stable locking operation with the minimum locking force.

In tape players, various locking mechanisms have been used in the past to hold the operating members in their respective operating states.
In these conventional devices, the locking relationship is not necessarily stable, and there are disadvantages such as the need for extra operating force against impacts, overstrokes, and the like. That is, such a conventional locking mechanism uses a reversing spring 54 as shown in FIG. There is one in which the locking part 52 attached to the tip of the pivoting piece 56 is reversed and locked to the engaging part 53 of the locking body 51, and this is also reversed to the eject state as shown in FIG. However, in such a configuration, the reversing spring 54 is quite large, and therefore, it is necessary to have a large reversing operation area, and also generates an impact force when engaging and disengaging the reversing spring 54. A fairly large operating force is required to ensure a secure locking state even when subjected to impact. Further, as shown in FIG. 6, a locking body 51 having an engaging portion 53 is provided so as to be rotatable about its pivot point 57, and the end surface of the engaging portion 53 is formed into an inclined edge 53a.
By pushing the locked part body 58 to which the locking part 52 is attached as shown in FIG.
1 is pushed up as shown in Figure B, and then pushed further until the locking part 52 reaches the engaging part 53, thereby locking as shown in Figure C. In this method, the locking body 51 is once pushed out and then returned to the old position and rotated to lock, so a certain amount of overstroke is required for the locked body 58. Since the locking body 51 is in a floating state and then moves back, there is a drawback that the operation becomes unstable.

The present invention, unlike the conventional ones mentioned above, was developed through repeated research to achieve accurate locking 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 includes a joint portion. (d) a locking member having an abutting portion for abutting with the engaging portion of the operating member described above and a locking portion for the holding member; (d) a driving force of the engaging portion of the operating member 4; a sliding guide portion that engages with the joint portion while in contact with the contact portion to suppress rotation of the locking member, and guides the rotation of the locking member after a predetermined operating stroke; (e) after a predetermined stroke of the locking member by the guide portion, the locking member is guided by the guiding portion to engage with the locking portion of the locking member to lock the actuating member; This is a locking operation mechanism in a tape player locking device, characterized in that it is comprised of a holding member;

That is, a specific embodiment of the present invention as shown in the accompanying drawings will be described. 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 is made to face the small gear part 6a which is coaxial with the small gear part 6a as an operating member that operates in response to power, and a partial cutout part 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 rotating gear 4, which is the operating member, is disengaged. It is structured like this. Also, a rotating plate 40, which is a part of the operating member, is installed coaxially with the rotating gear 4 as the operating member, and on the circumferential side thereof, there is a gear lock piece 2, which will be described later, and a locking protrusion 23 interlocking with the rotating plate 40. A chordal notch 41 and an engaging notch step 43 are formed in the relationship shown in the figure in accordance with the arrangement position of the actuating portion 30a of the piece 3, and an elongated hole 10 is formed on the upper surface of the engaging notch 43 for the deck 20.
A head plate 10 is provided as an actuating member that is slidable and performs a desired operation in accordance with d. installed on the side,
In other words, the rotating plate 40
A pin-shaped engaging portion 42 is provided to be engaged and disengaged. As shown in the figure, the locking member 8a is connected to a guide portion 95 provided at the attachment portion 10b formed in the inner part of the head plate 10 by a joint portion 88a and the pivot 88. A tapered contact portion 86 is formed on one side of the distal end of the locking member 8a to face the rotation range of the engaging portion 42, and a locking portion 87 is formed on the other side. The guide part 95 has a straight sliding guide part 91 and a guide part 9 recessed from the straight sliding guide part 91.
2 are continuously formed, and a holding member 96 having a lock pin 97 at its tip is attached separately from this, and a hooking part 98 formed on the proximal end side of the holding member 96 has an absorbent material at one end. The locking member 99 at the other end of the L-shaped locking member 8 provided with the locking member 83 is exposed. The adsorbent material 83 is provided with a suction plunger 9, and when the suction plunger 9 is energized, the locking member 8 is fixed.

A slide piece 1 is separately slidably attached to the inner part of the actuating member 10, and one end of the slide piece 1 has an engaging part that engages with another engaging protrusion 24 of the gear lock piece 2 described above. 11 is bent downward, and an operating section 12 is provided at the other end, and the upper part of FIG. It is constructed so as to function as shown by arrow a in FIG. 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 spring 29 provided between one side of the gear lock piece 2 near the engaging protrusion 24 and the side edge of the deck applies a force to rotate the gear lock piece 2 in the counterclockwise direction in FIG. On the other hand, interlocking piece 3
Another spring 39 provided between the protrusion extending from the pivot shaft 30 and the side edge of the deck rotates the interlocking piece 3 in a clockwise direction opposite to that of the gear lock piece 2. Actuating section 3 as described above by applying force
0a is always pressed against the chord-shaped notch 41 of the rotating 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 (the upper end in the figure) of the chord-like notch 41 of the rotary plate 4.
0 and the rotating gear 4, which is an operating member, are energized so as to rotate clockwise in FIG.
By engaging the engaging protrusion 23 of the gear lock piece 2, a fixed lock relationship was formed as shown in the figure, but as described above, the gear lock piece 2
By rotating as shown, the engagement between the engaging protrusion 23 and the notch step 43 is released, so the rotating gear 4 is rotated by the biasing rotational force of the spring 39 and the interlocking piece 3 as described above. Therefore, the partial notch 4a that had been exposed to the interlocking gear 6 in the above-mentioned ejected state
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. . With such an engagement, the rotating gear 4 will continue to rotate, and the engaging portion 42 provided on the rotating plate 40 acts on the abutting portion 86 of the locking member 8a as shown in FIG. . That is, the locking member 8a is pushed along the sliding guide portion 91 of the guide portion 95, the actuating member 10 is pulled out and advanced, and its head is pushed in a direction to press the tape of the attached tape pack. If the guiding portion 92 is reached, the locking member 8a will be pushed outward by the taper of the contact portion 86 as shown in FIG.
7. That is, since the locking member 8 is fixed by suction to the suction plunger 9, a locked state as shown in FIG. 3 is formed.

If the power is cut off during the forward movement of the actuating member 10 as described above, the actuating member 10
The locking member 8a also tries to move back, but the operating member 4 and the rotary plate 40 are both stopped due to the power being turned off, so the engaging part 42 is caught on the abutting part 86. Although it is in a locked state, the retraction force of the locking member 8a is reduced by the locking pin 97.
The locking member 8 acts as a force to push away the locking member 8 and the holding member 96, which have lost their attraction force due to the power being turned off, and move back as shown in FIG. 4.

According to the present invention as described above, the locking member 8a receives the acting force of the rotating gear 4, which is the operating member, in a slidable state in the guide portion 91, so that its operation is reliable and it can engage accurately with the engaging portion 42. The engaging portion 4 is moved and locked.
It becomes possible to accurately operate the head plate 10 as an operating member with the operating force of the operating member 4 of No. 2, and of course, since no shocking force is generated, the operation can be performed properly with the minimum required locking force. It is possible to obtain a preferable operating relationship without the need for overstroke or overpush, and is a highly effective device in practice.

[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 between the locking member and the holding member, and Figures 5 and 6 are step-by-step diagrams showing the operational relationships of alternative locations for conventional locking mechanisms. It is each explanatory diagram. 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, 8a is a locking member, 9 is a suction plunger, 10
2 is a head plate which is an operating member, 20 is a deck, 30 is a common pivot, 30a is an operating part of an interlocking piece, 40 is a rotary plate, 41 is a chord-shaped notch thereof, 42 is an engaging part thereof,
43 is the engagement notch step, 83 is an adsorption piece, 86 is a tapered contact portion, 87 is a locking portion, 88 is a guide pin, 91 is a sliding guide portion, 92 is a guide portion, and 96 is a holding member. , 97 is a lock pin, 98 is a locking portion, 9
Reference numeral 9 indicates the respective anchoring materials.

Claims (1)

[Claims for Utility Model Registration] (a) An operating member that has an engaging portion for a locking member and receives a driving force to perform a locking/disengaging operation; (b) an operating member that performs a desired operation; (c ) a locking member that is rotatably provided with respect to the operating member, has a joint portion, has an abutting portion for abutting with the engaging portion of the aforementioned operating member, and is provided with a locking portion with respect to the holding member; (d) The engaging part has a sliding guide part that engages with the joint part in a state in which the engaging part contacts the contact part by the driving force of the operating member 4 to suppress rotation of the locking member; (e) a guide part having a guide part that guides the rotation of the locking member after a predetermined operating stroke; A locking operation mechanism in a locking device for a tape player, comprising: a holding member that locks the operating member by locking the locking portion of the locking member.