JPH0119261Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a cassette half ejecting structure in a cassette tape recorder.

This invention will be explained with reference to the embodiment shown in FIGS. 1 and 2. Reference numeral 1 denotes a lid that also serves as a cassette storage section 2, and a cassette half is inserted into the cassette storage section 2 formed by the lid 1 and the rear plate 4. be done.

The lid 1 is a case 3 of a cassette tape recorder.
The rotation itself is pivoted.

5 is a rear plate 4 constituting the cassette storage section 2;
The engagement piece is vertically slidably attached to a groove 4a formed in the cassette half 6, and has a protrusion 5a that protrudes into the storage portion and engages with the cassette half 6.

Reference numeral 7 denotes a pulley fixed to the rear plate 4, and one end of the system 8 via the pulley is fixed to the housing 3, and the other end to the engagement piece 5.

In such a configuration, as shown in FIG. 2-a, the cassette half 6 is stored in the storage section 2 and the lid 1 is
In the closed state, the protrusion 5a of the engagement piece 5
The length of the system, the attachment position of the thread, the position of the pulley, the amount of sliding of the engaging piece, etc. are set so that it is located at a predetermined distance from the front end of the cassette half 6.

The above-mentioned predetermined interval means that the locking piece 5 engages with the cassette half at the beginning of the rotation of the lid in order to prevent the cassette half from rising and contacting the housing 3 when the lid 1 rotates. The distance is sufficient to prevent this.

Here, when the eject button (not shown) of the cassette tape recorder is operated, the lid 1 and the casing 3 are removed.
The lock is released, and the lid 1 begins to rotate forward by a biasing means such as a spring.

Since the pulley 7 also rotates in accordance with this rotation, the engagement piece 5 is pulled upward and slides.

However, at the beginning of the rotation, as described above, the engaging piece 5 does not come into contact with the front end of the cassette half 6, so the cassette half 6 rotates forward while maintaining the position shown in the figure.

Then, as the rotation progresses, the protrusion 5a of the engagement piece 5
comes into contact with the front end of the cassette half 6, and slides while moving the cassette half 6 upward, and at the end of the rotation, the cassette half 6 protrudes above the lid 1, as shown in Figure 2-b. Remove this by hand.

Conversely, to insert the cassette half 6 into the storage section 2, the reverse operation is performed.

That is, when the cassette half 6 is dropped into the storage section, its front end is engaged with the protrusion 5a of the engagement piece 5, and the rear end of the cassette half 6 projects above the storage section 2.

When the lid 1 is pressed in the direction of the housing 3 against the biasing means, the lid 1 begins to rotate, the engaging piece 5 slides downward, and the cassette half 6 moves downward. placed in place.

FIG. 3 shows a case where the space for arranging the mechanism is small or the rotation angle of the lid 1 cannot be set sufficiently, and one end of the first thread 8a is connected to the housing 3.
Then, the other end is connected to the sliding pulley 7b via the fixed pulley 7a.
(The sliding pulley consists of a pedestal 9 slidably attached to the rear plate 4 and a pulley 7b fixed to the pedestal 9), and the second thread 8b has one end attached to the housing 3.
The other end is fixed to the engagement piece 5 via a sliding pulley 7b.

With this configuration, the 2nd-a, 2nd-b
The amount of sliding of the engaging piece 5 can be increased compared to the configuration shown in the figure.

As explained above, this invention fixes the engaging piece 5 slidably vertically to the rear plate 4 of the cassette storage section 2 to one end of the string 8 via a pulley fixed to the rear plate 4. The other end of the thread 8 is fixed to a housing or the like, and a protrusion 5a is formed on the engagement piece 5 to protrude into the storage section 2 and engage with the front end of the cassette half 6. Unlike conventional mechanisms of this type, which had complicated structures such as spring claws, lacked durability, and were unstable in operation, this type of mechanism has an extremely simple structure and parts that engage with each other. Since it has extremely little amount of carbon dioxide, it is highly durable and has extremely stable operation, making it extremely useful for practical use.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the lid of this invention as seen from the rear, Figures 2-a and 2-b are sectional views of the lid showing the operation of this invention, and Figure 3 is a lid of another embodiment. FIG.

Claims (1)

[Claims for Utility Model Registration] Rear plate 4 forming cassette half storage section 2
A lid 1 having a cassette recorder is rotatably attached to a housing 3 of the cassette recorder, and a protrusion 5a is formed to engage with the front end of the cassette half 6 stored in the cassette half storage section 2. An engaging piece 5 is slidably attached to the face plate 4, a pulley 7 is fixed to the rear plate 4, and the engaging piece 5 is connected to the housing 3 at one end and via the pulley 7 at the other end.
A cassette half ejecting mechanism characterized by comprising a thread 8 coupled to a cassette half. A fixed pulley 7a fixed to the rear plate 4 and a sliding pulley 7b slidably attached to the rear plate 4.
, the engagement piece 5 slidably attached to the rear plate 4, and the first thread 8a, one end of which is coupled to the housing 3, and the other end coupled to the sliding pulley 7b via the fixed pulley 7a. , comprising a second thread 8b whose one end is connected to the housing 3 and the other end is connected to the engagement piece 5 via a sliding pulley 7b, as described in claim 1 of the utility model registration claim. cassette half ejection mechanism.