JPH048518Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an ejecting device suitable for use in a cassette tape recorder.

[Conventional technology]

Conventionally, in a cassette tape recorder, the cassette lid is attached to the cabinet while being biased in the opening direction, and the cassette lid is locked in the closed state by a lock lever operated by an ejector lever provided on the operation panel. has been done. When loading a tape cassette containing magnetic tape into this cassette tape recorder, the ejector lever is pressed, and the ejector lever operates the lock lever to unlock the cassette lid, leaving the cassette lid open. It will be done.

[Problem that the invention attempts to solve]

Incidentally, in the lock lever of such a cassette tape recorder, a pin installed in the cabinet is inserted into a through hole formed in the lock lever, and the lock lever is rotated about this pin. For this reason, when attaching the lock lever to the cabinet, there was the inconvenience that after inserting the through hole of the lock lever into the pin of the cabinet, a separate part had to be attached to prevent the lock lever from falling out.

In view of this, an object of the present invention is to provide an inexpensive ejecting device that does not require a separate part to guide the lock lever and has a small number of parts and assembly steps.

[Means for solving problems]

The present invention is provided with a rotation support shaft 6 that rotatably supports the ejector lever 3, and a lock lever 8 that locks or unlocks the cassette lid 2 in the closed position by the operation of the ejector lever 3. It is designed to guide the lock lever 8.

[Effect]

According to this configuration, the rotation of the ejector lever 3 is supported by the rotation support shaft 6, and the lock lever 3 operated by the ejector lever 3 is guided by the rotation support shaft 6 to prevent it from falling off. Ru.

〔Example〕

Hereinafter, an embodiment of the ejecting device of the present invention will be described with reference to the drawings.

1 and 2, reference numeral 1 indicates a cassette tape recorder as a whole, and this cassette tape recorder 1 records or reproduces information on a magnetic tape stored in a tape cassette. 2 is the cabinet 1 of this cassette tape recorder 1
The cassette lid 2 is shown facing a, and although not shown in the figure, the cassette lid 2 is biased in the opening direction by a spring. A cassette holder section is provided inside the cassette lid 2, and when the cassette lid 2 is opened, the cassette holder section is exposed so that a tape cassette can be attached to the cassette holder section.

Reference numeral 3 indicates an ejector lever provided near the cassette lid 2, and when the ejector lever 3 is operated, the cassette lid 2 is opened via a lock lever to be described later.
When the tape cassette is opened and closed, the tape cassette mounted in the cassette holder is lifted out of the cassette holder.

Here, the cassette lid 2, ejector lever 3, and lock lever will be further explained with reference to FIGS. 1 to 8.

The ejector lever 3 is a push operation section 3a facing the cabinet 1a of the cassette tape recorder 1.
A pair of rotational support parts 3d and 3e are located on one side of this pressing operation part 3a and have shaft insertion holes 3b and 3c.
The elastic contact portion 3f located between the pair of rotation support portions 3d and 3e, and the tapered operation piece 3g located at the bottom of the other side of the pressing operation portion 3a are made of synthetic resin, for example, ABS resin. Formed and configured in one piece. In this case, a pair of lever support pieces 5a, which have shaft insertion holes 4a, 4b inside the cabinet 1a,
5b, and the shaft insertion holes 3b, 3c, 4 of the lever support pieces 5a, 5b and rotation support parts 3d, 3e.
The rotation support shaft 6 is inserted through a and 4b, and the eject lever 3 is rotatably attached to the cabinet 1a. Further, the contact portion 3f is arranged to straddle the rotation support shaft 6 from one side of the pressing operation portion 3a so that it always contacts the cabinet 1a on the opposite side of the rotation support shaft 6 from the pressing operation portion 3a. , press operation section 3a
When is pressed and the eject lever 3 is rotated, the contact portion 3f is elastically deformed in accordance with this rotation, and the biasing force of the contact portion 3f causes the push operation portion 3a to be moved to the position before rotation. Let it be a force to be reckoned with. In addition, 7 is a lever insertion hole for fitting the pressing operation part 3a provided in the cabinet 1a, and 6a is a slip-off prevention groove provided at one end of the rotation support shaft 6. The lever support piece of the cabinet 1a is inserted into this slip-off prevention groove 6a. A projecting piece 18 provided near 5a is fitted to prevent the rotation support shaft 6 from coming off.

Reference numeral 8 indicates a substantially L-shaped lock lever having an elastic piece 8a on one side, and this lock lever 8 is operated by the movement of the ejector lever 3 to lock the cassette lid 2 in its closed position (hereinafter referred to as the closed position). Or unlock it. In this case, a through hole 8b is provided near the bent portion of the lock lever 8, and a cylindrical support shaft 9 is provided near the lever insertion hole 7 of the cabinet 1a.
b is inserted to make the lock lever 8 rotatable relative to the cabinet 1a. Also, one end 8c of the lock lever 8 is made to engage with the operation piece 3g of the ejector lever 3 at one rotational position of the lock lever 8, and the lock lever 8 at this one rotational position
The other end 8d is the rotation support part 3 of the eject lever 3
A rib 10 is provided on the cabinet 1a to correspond to the elastic piece 8a of the lock lever 8 at this one rotational position, and when the ejector lever 3 is pressed, the lock lever 8 is moved by the operating piece 3g. One end 8c is pressed and the lock lever 8 is rotated from one rotation position to another rotation position, and in accordance with the rotation of the lock lever 8, the elastic piece 8a is engaged with the rib 10 and biased. The biasing force of the elastic piece 8a urges the lock lever 8 toward one rotational position.

In this example, the lock lever 8 of the rotation support shaft 6 is
The side end is attached to the rotation support part 3e of the eject lever 3.
The other end 8d of the lock lever 8 is positioned between the rotary support shaft 6, which protrudes from the rotary support portion 3e, and the cabinet 1a by a predetermined length.

On the other hand, 2a indicates a hook-shaped locking claw provided on the inside of the cassette lid 2 corresponding to the other end 8d of the lock lever 8 in the first rotation position. This locking pawl 2a is engaged with the other end 8d of the lock lever 8 when it is in the rotating position, and when the ejector lever 3 is pressed and the lock lever 8 is placed in another rotating position, this locking occurs. Claw 2a and other end 8d of lock lever 8
so that the engagement with is released.

According to such a configuration, during assembly, the rotation support parts 3e and 3d of the ejector lever 3 and the shaft insertion holes 3b of the lever support pieces 5a and 5b of the cabinet 1a,
After arranging the eject lever 3 so that 3c, 4a, and 4b are aligned in a straight line and arranging the lock lever 8 so that the support shaft 9 is inserted into the through hole 8b, the shaft insertion holes 3b, 3c, 4a, and 4b are placed. By inserting the rotation support shaft 6 through the lock lever 8, the lock lever 8 can be attached to the cabinet 1a without requiring any separate parts.
The ejector lever 3 is rotatably attached to the cabinet 1a without falling off, and the ejector lever 3 is rotatably attached to the cabinet 1a.

In addition, during operation, when the pressing operation part 3a of the ejector lever 3 is pressed, the ejector lever 3 is rotated downward about the rotation support shaft 6, and the operation piece 3g of the ejector lever 3 rotates the ejector lever 3 downward. One end 8c of the lock lever 8 is pressed, the lock lever 8 is guided by the rotation support shaft 6, and is rotated from one rotation position to another rotation position, and the other end 8c of the lock lever 8 is rotated from one rotation position to another rotation position.
d is disengaged from the locking claw 2a of the cassette lid 2, the cassette lid 2 is opened, and the tape cassette can be attached to the cassette holder section inside the cassette lid 2. At this time, the downward rotation of the ejector lever 3 causes the abutting portion 3f of the ejector lever 3 to be elastically deformed, and the abutting portion 3f
The biasing force urges the eject lever 3 toward the position before rotation, and the rotation of the lock lever 8 to another rotation position biases the elastic piece 8a locked by the rib 10. The biasing force of the elastic piece 8a urges the lock lever 8 toward one rotational position.

And the press operation part 3a of the eject lever 3
When the pressing force is removed, the ejector lever 3 rotates to its pre-rotation position due to the biasing force of its contact portion 3f, and when the ejector lever 3 rotates to its pre-rotation position, the lock lever 8 is guided by the rotation support shaft 6 by the biasing force of the elastic piece 8a, and is rotated to one rotation position.

When the cassette lid 2 is closed to the closed position with the lock lever 8 rotated to the first rotation position in this manner, the other end 8d of the lock lever 8 is pressed by the locking pawl 2a of the cassette lid 2, and the lock lever 8 is temporarily closed. The lock lever 8 is guided by the rotation support shaft 6 and rotated against the biasing force of the elastic piece 8a so that the other end 8d of the lock lever 8 is located outside the movement range of the locking claw 2a.
When the cassette lid 2 is in the closed position, the lock lever 8 is guided by the rotation support shaft 6 and rotated to one rotation position by the biasing force of the elastic piece 8a, and the other end 8d of the lock lever 8 and the locking pawl 2a are rotated. is engaged, and the cassette lid 2 is locked in the closed position.

As described above, according to the ejector of this example, the rotation support shaft 6 rotatably supports the ejector lever 3, and the lock lever locks or unlocks the cassette lid 2 in the closed position by the operation of the ejector lever 3. 8, and the lock lever 8 is guided by the rotation support shaft 6 to prevent it from falling off, so there is no need for a separate part to guide the lock lever 8, and it is an inexpensive product with a small number of parts and assembly steps. There are profits that can be made.

It goes without saying that the present invention is not limited to the above-described embodiments, and can take various other configurations without departing from the gist of the present invention.

[Effect of idea]

According to the ejector device of the present invention, a rotational support shaft that rotatably supports the ejector lever and a lock lever that locks or unlocks the cassette lid in the closed position by the operation of the ejector lever are provided to prevent the cassette lid from falling off. Since the lock lever is guided by the rotation support shaft, there is no need for a separate part to guide the lock lever, and there is an advantage that an inexpensive product with a small number of parts and assembly steps can be obtained.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the main part of the ejecting device of the present invention, Fig. 2 is a perspective view showing an example of a cassette tape recorder to which the ejecting device of the present invention is applied, and Fig. 3 is an exploded view of Fig. 1. 4 is a schematic plan view of FIG. 1, FIG. 5 is a sectional view taken along the line - - of FIG. 4, FIG. 6 is a sectional view taken along the line - - of FIG. Sectional view on the - line in Figure 4, No. 8
The figure is a sectional view taken along the - line in FIG. 4. 1a is a cabinet, 2 is a cassette lid, 2a is a locking claw, 3 is an eject lever, 3a is a pressing operation part, 3b, 3c, 4a and 4b are shaft insertion holes, respectively.
3d and 3e are rotating support parts, 3g is an operation piece,
6 is a rotation support shaft, 8 is a lock lever, 8b is a through hole, and 8c and 8d are one end and the other end of the lock lever, respectively.

Claims (1)

[Claims for Utility Model Registration] A rotary support shaft that rotatably supports the ejector lever, a first position that locks the cassette lid in the closed position, and a second position that unlocks the cassette lid in accordance with the movement of the ejector lever. In an ejecting device comprising a lock lever that rotates between two positions, a shaft is provided in one of the cabinet and the lock lever, a hole is provided in the other, and the shaft is inserted into the hole. An ejecting device characterized in that the lock lever is arranged so as to be inserted, and the lock lever is guided by the rotation support shaft to prevent the lock lever from falling off.