JPS633014Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cassette mounting device for a cassette type tape recorder, and is particularly intended to provide a cassette mounting device suitable for reducing the thickness of a cassette type tape recorder.

A holder-type cassette mounting device is generally popular as a cassette mounting device for a cassette type tape recorder, and such a cassette mounting device is equipped with a mechanism called a damper in order to obtain a good ejection feeling when the cassette is ejected. A typical damper mechanism is one that combines a rotating gear and a rod-shaped gear, but when such a mechanism is used in a thin cassette-type tape recorder, the cassette holder must be opened wide. There is a problem that the length of the bar gear becomes long.

The present invention has been developed in view of these points, and will be described in detail below with reference to the drawings. The drawings relate to the present invention; FIG. 1 is a side view of the cassette holder in the playing position, and FIG. 2 is a side view of the cassette holder in the detachable position. In the figure, 1 is a support plate fixed to a fixed board 2 with screws 3 and 4, 5 is rotatably attached to the support plate 1 at one end by a shaft 6, and a guide pin 7 is attached at the other end. is installed on the first
A rotating arm 8 is a second rotating arm that is provided so as to intersect with the first rotating arm 5, and the intersection thereof is connected to the first rotating arm 5 by a connecting pin 9. , one end of which is slidably and rotatably attached by cooperation of a long hole 10 formed in the support plate 1 and a pin 11. 12 is a cassette holder mounting plate to which a cassette holder (not shown) into which the cassette tape is inserted is mounted; The cassette holder mounting plate 12 is rotatably supported, and a guide portion 14 is formed at the other end to cooperate with the guide pin 7 attached to the first rotating arm 5 to restrict the displacement movement of the cassette holder mounting plate 12. There is. A damper gear 15 is rotatably attached to the connecting pin 9, and is configured so that an appropriate load is applied to the rotational movement by means of grease. 16 is the cassette holder mounting plate 12
This damper meshing portion is fixed to the damper gear 15 and has teeth 17 formed in an arc shape around the support shaft 13 of the second rotating arm 8 and meshing with the damper gear 15 . The first rotating arm 5 is biased clockwise by a spring (not shown) about the shaft 6, and the cassette holder mounting plate 12 is biased clockwise by a spring (not shown) about the shaft 6. (not shown) clockwise.

The present invention is constructed as described above, and its operation will be explained next. When the cassette holder is in the playing position shown in FIG. It is in a state of engagement with a guide portion 14 formed on the mounting plate 12 as shown.

When the user operates to eject the cassette while the cassette holder is in the above-mentioned playing position, the holding operation at the playing position by the lock mechanism is released. When the holding operation by the lock mechanism is released,
Due to the clockwise biasing force of the first rotating arm 5, both the first rotating arm 5 and the second rotating arm 8 are rotationally displaced to the state shown in FIG. 2. The cassette holder mounting plate 12 holds the cassette holder mounting plate 12 until the engagement between the guide pin 7 mounted on the first rotating arm 5 and the guide portion 14 formed on the cassette holder mounting plate 12 is released. It moves in the direction of arrow A substantially parallel to the fixed substrate 2 to the position shown by the solid line in the figure. After this operation is performed, the cassette holder mounting plate 12 is rotated clockwise about the support shaft 13 by the biasing force of the spring, and is displaced to the position shown by the two-dot chain line in FIG. As described above, the cassette holder mounting plate 12 is displaced from the playing position to the attachment/detachment position in conjunction with the cassette ejection operation, but during this displacement operation, the damper engaging portion 16 fixed to the cassette holder attachment plate 12 is moved. Since the teeth 17 of the damper gear 15 are in mesh with the damper gear 15 attached to the second rotating arm 8 by the connecting pin 9, the damper gear 15
acts as a damper on the displacement movement of the cassette holder mounting plate 12. Therefore, the displacement operation of the cassette holder mounting plate 12 can be performed extremely smoothly and with a good feeling of operation.

As explained above, the cassette mounting device of the present invention is fixed to the cassette holder mounting plate to the damper gear rotatably attached to the second rotating arm as a damper mechanism that acts on the displacement movement of the cassette holder mounting plate. Since the teeth of the damper meshing portion are configured to mesh with each other, it is most suitable as a cassette mounting device for a tape recorder that requires a wide opening of the cassette holder, such as a thin tape recorder.

[Brief explanation of drawings]

The drawings all relate to the cassette mounting device of the present invention; FIG. 1 is a side view of the cassette holder in the playing position, and FIG. 2 is a side view of the cassette holder in the attachment/detachment position. Explanation of main drawing numbers, 1... Support plate, 5... First rotating arm, 7... Guide pin, 8... Second rotating arm, 9
... Connection pin, 12 ... Cassette holder mounting plate, 14 ... Guide portion, 15 ... Damper gear, 16 ... Damper meshing portion.

Claims (1)

[Scope of utility model registration request] a first rotating arm, one end of which is rotatably attached to a support plate provided on the fixed substrate and a guide pin attached to the other end; a second rotating arm that is rotatably and slidably attached to the support plate at one end; a connecting pin that connects the arms; and a guide portion that is rotatably attached to a support shaft provided at an end of the second rotating arm and that cooperates with a guide pin that is attached to the first rotating arm. a cassette holder mounting plate formed with a
A cassette type comprising a damper gear rotatably attached to the connecting pin, and a damper meshing part fixed to the cassette holder mounting plate and having teeth that mesh with the damper gear. Tape recorder cassette loading device.