JPH0119255Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ejection device for a tape recorder.

Therefore, the purpose of the present invention is to quickly open the cassette door from the start of ejection to the middle of the ejection, and to open the cassette door slowly from the middle of the ejection to the end of the ejection, and to simplify the structure of the device and reduce the cost. An object of the present invention is to provide an eject device for a tape recorder.

SUMMARY OF THE INVENTION The present invention provides an ejection device for a tape recorder in which the left and right legs of a cassette door designed to store a cassette in a recess are rotatably connected to leg pivot pins on a circuit board. A rotating plate loosely fitting shaft is protruded from the side surface, and a rotating plate having a spring locking piece is loosely fitted to this loosely fitting shaft, and one end of the door spring is wound around the leg pivot pin of the base plate. is locked to the spring locking piece, and a stopper is provided protruding near the leg pivot pin for abutting one side of the door spring at the time of ejection to restrict the eject position of the cassette door; One end of the auxiliary spring wound around the rotary plate loose fitting shaft is locked to the front rear surface of the cassette door, and the other end is locked to the spring locking piece, so that when one side of the door spring comes into contact with the stopper, the The above-described objective is achieved by interposing viscous grease between the rotary plate, which rotates by the force of an auxiliary spring, and the rotary plate loosely fitting shaft.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

FIG. 1 is a side view showing a tape recorder ejection device according to the present invention, in which 1 is a cassette door, and the cassette door 1 is inserted into a recess 2 as clearly shown in FIG. (not shown)
It was created to store the.

The cassette door 1 is composed of a front part 4 having a window 3, left and right side parts 5, 6, and left and right legs 7, 7 connected to the lower parts of these left and right side parts 5, 6. Each element 4, 5, 6, 7 is integrally formed of, for example, synthetic resin.

The left and right legs 7, 7 of the cassette door 1 are rotatably connected to leg pivot pins 9, 9 (however, only the right leg pivot pin is shown in FIG. 1) of the lower base plate 8, respectively. There is.

Furthermore, one side surface 6 of the cassette door 1
In the lower area of the outer surface of
0 is set protrudingly.

Then, viscous grease 11 is applied to the circumferential surface of the rotary plate loosely fitting shaft 10 as shown by hatching in the figure, and the rotary plate 12 is loosely fitted onto the shaft 10 via the viscous grease 11. There is.

The rotary plate 12 has a pair of L-shaped spring locking pieces 13, 13 integrally formed on its circumferential surface, and a large diameter portion of the loose fitting shaft 10 is coated with viscous grease 11. After loosely fitting the rotary plate 12 with the auxiliary spring 1 on the small diameter portion of the loosely fitting shaft
4 is fitted, and the spring 14 is prevented from coming off by a retaining ring 15 fitted to the small diameter portion of the shaft 10.

Here, one end 14a of the auxiliary spring 14
is fixed to the rear surface of the front part 4 of the cassette door 1, and the other end 14b is fixed to the spring locking piece 13, respectively.

On the other hand, a door spring 16 is wound around the leg pivot pin 9 of the base plate 8, and one end 16a of the door spring 16 is locked to the spring locking piece 13. More specifically, when the tip of one side 16a of the door spring 16 is positioned between the pair of spring locking pieces 13, 13, the same spring force is applied to the pair of spring locking pieces 13 under the playing condition shown in FIG. , 13, the locking piece 13 on the left side in the figure is biased.

Further, a stopper 17 is provided protruding from the base plate 8 near the leg pivot pin 9. This stopper 17 is for regulating the position at which ejection of the cassette door 1 is completed by bringing the one side 16a of the door spring 16 into contact when the cassette door 1 is ejected.

An engaging protrusion 18 is protruded from the upper area of one side surface 6 of the cassette door 1, and this engaging protrusion 18 is removably engaged by a hook-shaped door engaging piece 19. When the eject operation is performed, the engagement between the two 18 and 19 is released.

Next, the operation of the ejector constructed as described above will be explained.

Now, when an eject operation button (not shown) is pressed, the door engagement piece 19 rotates in the direction of the arrow in FIG. 1, and the engagement of the engagement protrusion 18 by the engagement piece 19 is released.

In this way, when the engagement between the two 18 and 19 is released, the cassette door 1 is rotated counterclockwise in the drawing using the leg pivot pins 9 and 9 as fulcrums by the restoring force of the door spring 16. The state shown in FIG. 1 changes to the state shown in FIG. 3.

That is, one side 16 of the door spring 16
The state shown in FIG. 3 is reached in which point a once contacts the stopper 17. Since the damping action of the viscous grease 11 and the auxiliary spring 14 does not work from the start of ejection to the middle of the ejection, the cassette door 1 opens quickly.

Next, the weight of the cassette door 1 and the cassettes inside the door 1 and the auxiliary spring 14 work, and the auxiliary spring 14 opens to resist the viscous resistance of the viscous grease 11 and rotate the rotary plate 12 around the shaft 10 as a fulcrum. Since the cassette door 1 is rotated counterclockwise, the cassette door 1 is opened from the solid line position in FIG. 3 to the solid line position in FIG. 4 to complete ejection. Since the viscous grease 11 acts as a damper from the middle of the ejection to the completion of the ejection, the cassette door 1 opens slowly.

In this way, the present invention provides a tape structure in which the left and right legs 7, 7 of the cassette door 1, which is designed to store a cassette in the recess 2, are rotatably pivoted to the leg pivot pins 9, 9 of the base plate 8. In the recorder ejection device, a rotating plate loosely fitting shaft 10 is provided protruding from the outer surface of the cassette door 1, and a spring locking piece 1 is attached to this loosely fitting shaft 10.
A door spring 16 is wound around the leg pivot pin 9 of the base plate 8, while a rotary plate 12 having a rotary plate 12 having a rotary plate 3 is loosely fitted therein.
The tip of one side 16a of the spring locking piece 13
and one side 1 of the door spring 16 in the vicinity of the leg pivot pin 9 when the door spring 16 is ejected.
The auxiliary spring 1 is provided with a stopper 17 protruding from the cassette door 1 to restrict the eject position of the cassette door 1 by contacting the auxiliary spring 1 which is wound around the rotary plate loosely fitting shaft 10.
One side 14a of 4 is connected to the front part 4 of the cassette door 1.
The rear side and the other end 14b are respectively locked to the spring locking pieces 13, and the door spring 1
A viscous grease 11 is applied between the rotating plate 12, which rotates by the force of the auxiliary spring 14 when one side 16a of the 6 abuts against the stopper 17, and the rotating plate loosely fitting shaft 10.
Therefore, the cassette door 1 can be opened quickly to allow the cassette to pop out from the start of ejection to the middle of ejection, and then opened slowly from the middle of ejection to the end of ejection. Furthermore, the structure of the device is simple and costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an ejecting device for a tape recorder according to the present invention, FIG. 2 is an exploded perspective view of a part of FIG. 1, and FIGS. 3 and 4 are diagrams for explaining the ejecting action. FIG. 1...Cassette door, 2...Recess, 7...Legs,
8... Board, 9... Leg pivot pin, 10... Rotating plate loose fitting shaft, 12... Rotating plate, 13... Spring locking piece, 16... Door spring, 17... Stopper.

Claims (1)

[Scope of utility model registration request] The left and right legs 7, 7 of the cassette door 1, which is formed to store the cassette in the recess, are connected to the leg pivot pins 9, 7 of the board 8.
In the ejection device for a tape recorder, which is rotatably pivotally connected to the cassette door 1, a rotary plate loosely fitting shaft 10 is protruded from the outer surface of the cassette door 1, and a spring locking piece 13 is attached to the loosely fitting shaft 1. While loosely fitting the rotary plate 12 having the base plate 8, one side 16a of the door spring 16 wound around the leg pivot pin 9 of the base plate 8 is locked to the spring locking piece 13, and the leg pivot A stopper 17 is provided protruding near the pin 9 to abut one side 16a of the door spring 16 during ejection to restrict the eject position of the cassette door 1, and an auxiliary spring is wound around the rotary plate loosely fitting shaft 10. One end 14a of the door spring 14 is locked to the rear surface of the front part 4 of the cassette door 1, and the other end 14b is locked to the spring locking piece 13, and one side 16a of the door spring 16 is locked to the stopper 17.
An ejection device for a tape recorder, characterized in that viscous grease 11 is interposed between the rotating plate 12 and the rotating plate loosely fitting shaft 10, which rotate by the force of the auxiliary spring 14 when in contact with the rotary plate 12.