JPS583302B2 - Cassette tape recorder eject device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ejection device for a cassette tape recorder, and is particularly designed to prevent the cassette from being ejected with force.

Conventionally, the cassette is pushed up by pressing an eject button, and when the cassette reaches position A in FIG.

The force of this spring 35 causes rotation loss of the detection arm 24,
Settings must be made so that the cassette can be reliably ejected even if there are variations in friction loss between the cassette and the cassette holder.

Therefore, due to variations in the cassettes, the cassettes are ejected with force, which is extremely inconvenient in handling.

SUMMARY OF THE INVENTION An object of the present invention is to provide an ejector which eliminates the drawbacks of the prior art and prevents the cassette from being ejected with force.

That is, in the conventional device, when the detection arm, which is biased by a spring, reaches a certain point, it suddenly disengages and the detection arm swings vigorously, as if hitting the cassette, and the cassette ejects with force.

Therefore, when the push button is pressed by hand, the detection arm is prevented from rotating, and the cassette is ejected when the push button is released. The rotating speed is much slower than the rotating speed when the lock is released, and the cassette will not be ejected forcefully.

Embodiments of the present invention will be described below with reference to the drawings.

Support points 4 and 5 are provided on the chassis 1, and a cassette arm 6 rotates.

A hole 15 is provided at the tip of the cassette arm 6, and a pin 13 on the cassette holder 12 is rotatably attached thereto.

A pin 20 is planted on the cassette holder 12,
Move the guide hole 28 on the chassis 1.

The detection arm 24 rotates around a fulcrum 25 on the chassis 1 and is biased by a spring 35.

An arm locking bang 26 rotates about the same fulcrum 25 as the detection arm 24, and locks the movement of the cassette arm 6, which is biased by the spring 11.

When the cassette is pushed upward from the bottom of the figure, the detection arm 24 is rotated by its end face, and when the rear of the detection arm 24 comes to a certain point, it abuts against the arm opening tab 26, and when pushed further, the detection arm 24 is moved to the position shown in FIG. 1A. When it reaches the point, the arm lock bang 26
The cassette arm 6 rotates together to release the lock, and the cassette arm 6 rotates about the fulcrums 4 and 5. At the same time, the cassette holder 12 is moved to the position shown in FIG. 1B.

In the case of cassette ejection, when the button 54 is pushed in, the lever 51 integrated with the button 54 slides using the chassis bent portion and the guide pin 53 set up on the chassis as guides.

The lever 51 has a bent portion 52, and the eject lever 3
It is in contact with 8.

When performing a cassette eject operation, use the eject lever 38.
moves in unison with the lever 51, rotates the eject arm 36 which rotates around the pin 56 on the chassis at the protrusion 39, and uses the eject arm 36 and the other end 41 to rotate the eject arm 36 on the cassette holder 12. Push up pin 20.

When the cassette arm 6 is pushed up from the state shown in B to the state shown in FIG. It climbs onto springs 35 and 57 and rotates.

The rotation of the detection arm 24 ejects the cassette, and the rotation of the arm lock bang 26 prevents rotation of the cassette arm 6.

In the conventional device, the pin 2 is attached to the cam portion 24a of the detection arm 24.
9, the cassette was suddenly unlatched and the cassette was knocked out by the strong tension of the spring 35. However, in this embodiment, as shown in FIG. During this time, the detection arm 24 is prevented from rotating, so that the cassette is ejected at the speed at which the button 54 is released, and the cassette will not fly out with force and fall.

As described above, according to the present invention, it does not fly out violently and is convenient for practical use.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of an ejection device for a cassette tape recorder according to the present invention, showing a state in which a cassette is installed. FIG. 2 is a side view corresponding to FIG. 1 showing a state in which the cassette is ejected, FIG. 3 is a front view thereof, FIG. 4 is a side view showing essential parts of the present invention, and FIG. 5 is a front view thereof. . 24...Detection arm, 24a...Cam section, 29...Pin, 38...Eject lever, 54...Button, 55... ····protrusion.

Claims (1)

[Claims] 1. A cassette elevating member that moves from a first position, which is a playing position, to a second position where the cassette can be ejected in connection with a cassette ejecting operation, and a cassette elevating member that is engaged with the cassette elevating member due to the movement of the cassette elevating member. a cassette ejecting member that moves in the direction of ejecting the cassette in the second position when the stop is released and is in the second position due to the biasing force of a spring; and a block that moves in conjunction with the cassette ejecting operation and prevents movement of the cassette ejecting member. Even if the cassette ejecting member is unlocked as the cassette elevating member moves from the first position to the second position by performing a cassette ejecting operation, the movable member has a moves, and the blocking portion of the movable member comes into contact with the cassette ejecting member to prevent the cassette from being ejected, and when the cassette ejecting operation is released, the cassette ejecting member is moved by the biasing force of the spring. An ejection device for a cassette tape recorder, characterized in that the movable member is moved back so as to eject the cassette.