JPH048548Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention is pivotally supported in the cassette insertion slot of a cassette type tape recorder so as to be freely openable and closable, and is always biased to rotate in the direction of closing the insertion opening. This invention relates to improvements to cassette lids.

(b) Prior Art Cassette type tape recorders, particularly cassette type car stereos, usually have a cassette cover provided in the cassette insertion slot so as to be openable and closable in order to prevent dust from entering the main body through the cassette insertion slot. This type of device is well known, for example, from Japanese Utility Model Publication No. 56-29761. In order to smoothly insert and eject the cassette, the cassette lid is always biased by a relatively weak spring in the direction of closing the cassette insertion opening.

On the other hand, the magnetic head, capstan, etc. installed inside the main unit require cleaning for maintenance purposes, but in this case, the operator should open the cassette lid with his hands or a tool and clean it with a cotton swab, etc. I had to.

Therefore, during this cleaning work, there is no means for holding the cassette lid in an open state, so the cassette lid rotates back in the closing direction due to its own weight on the cotton swab, etc., and as a result, the cassette lid and the cotton swab are Problems have arisen, such as contact with each other and difficulty in seeing through the inside of the main body.

(c) Purpose of the invention In order to solve the above-mentioned problems, the present invention is designed to easily hold the cassette lid in an open state and to easily maintain the head, capstan, etc. inside the main body. It is something.

(d) Structure of the invention In order to achieve the above object, the present invention provides a cassette which has a cassette lid which is rotatably supported in a cassette insertion opening and which is always biased in a direction to close the insertion opening. In the tape recorder, a holding member is provided on the cassette lid so as to be movable between two positions, and when the holding member is set at the first position, the cassette lid rotates in response to insertion and ejection of the cassette. When the holding member is moved from the first position to the second position after the cassette lid is opened by hand, the locking portion that holds the cassette lid in the open state is inserted into the cassette insertion slot. The present invention provides a cassette lid device characterized in that it is provided near a cassette lid device.

(E) Embodiments Below, embodiments of the device of the present invention shown in the drawings will be described.

FIG. 1 is a schematic explanatory diagram of a cassette tape recorder to which the device of the present invention is applied, in which a cassette lid 3 is provided inside a cassette insertion opening 2 of a main body 1 so as to be openable and closable by a shaft 4. The lid body 3 is always biased to rotate in the direction of closing the insertion port 2 by a spring (not shown) and is at the solid line position A shown in the diagram. Then, when the cassette 5 is inserted horizontally into the cassette insertion slot 2 from the position A' in the figure, the cassette 5 is inserted to the position B' in the figure while rotating the cassette lid 3 against the spring to the position B indicated by the chain line. After that, the cassette 5 is lowered to position C' in the figure, and the playing parts (reel shaft, magnetic head,
At this time, the cassette lid 3 is brought into contact with the top surface of the cassette 5 at the position C' in the figure, at a position C indicated by a chain line.

When ejecting the cassette 5, the cassette 5 rises from the position C' to the position B' in the figure, and the cassette lid 3 rotates to the position B shown by the chain line. The cassette lid 3 is ejected from the middle position B' to the position A', and the cassette lid 3 returns to the solid line position A.

The present invention is an improvement on the above-mentioned cassette lid 3, and as shown in FIG. 2, a holding member 6 is provided on the cassette lid 3 so as to be movable between two positions. The holding member 6 is formed in a cylindrical shape,
It is inserted into a groove 3' formed at the corner edge of the cassette lid 3 and extending in the left-right direction. Therefore, the holding member 6 is movable in the left-right direction at the corner of the cassette lid 3 and is set at the first position or the second position.

That is, the first position of the holding member 6 is the cassette lid 3.
The position does not protrude from the corner of the holding member 6.
does not come into contact with the locking step 7 formed inside the cassette insertion opening 2, and the cassette lid 3 is allowed to rotate in response to the insertion and ejection of the cassette 5 as described above.

The second position of the holding member 6 is a position protruding from the corner of the cassette lid 3, and after the cassette lid 3 has rotated to the chain line position B in FIG. The cassette lid 3 is held in an open state by coming into contact with a locking step 7 formed inside the opening 2.

3 and 4 show an example in which the holding member is attached to the cassette lid so that it can be moved between two positions, and FIG. 3 shows an example in which the cassette lid 3 is provided with an engagement hole 3''. A holding member 8 made of synthetic resin having an engaging claw 8' facing outward is fitted into the matching hole 3'' from the front in the direction of the arrow, and the engaging claw 8' moves inside the engaging hole 3''. It is configured to take two positions in the left and right direction.

Further, FIG. 4 shows a cassette lid body 3 in which a bent piece 3a in the shape of an angle is formed at the tip to abut against the top surface of the cassette.
This is an example in which an engaging hole 3'' is formed in the engaging hole 3'', and a synthetic resin holding member 9 having an inwardly facing engaging claw 9' is fitted into the engaging hole 3'' from below in the direction of the arrow. The engaging claw 9' is configured to move within the engaging hole 3'' and take two positions in the left and right direction.

The holding member 6 provided on the cassette lid 3 so as to be freely movable between two positions is made of an elastic material and has an arcuate outer circumferential surface. If the cassette lid 3 is configured so that it comes into contact with the inside of the cassette insertion slot 2 at some point, and also hits the top surface of the cassette 5 when the cassette lid 3 is in the chain line position C, the impact can be alleviated when the cassette lid is closed. This is useful for protecting the top surface of the cassette.

(f) Effects of the invention Since the device of the invention is constructed as described above, when the holding member movably provided on the cassette lid is set at the first position, the cassette lid cannot be moved from the cassette. Although the cassette insertion port can be rotated to open and close in response to insertion and ejection, the holding member must be moved from the first position to the second position after the cassette lid is manually rotated in the releasing direction. Once the cassette lid is locked at the locking part, the cassette lid can be held in the open state, so there is no need to hold the cassette lid open by hand as in the past, and there is no need to open the cassette lid during actual operation. As described in Publication No. 57-138177, there is no need to prepare a special cleaning device housing that has the same external shape as the outer housing of the cartridge tape, and the magnetic head, capstan, etc. inside the tape recorder body can be easily maintained. This makes cleaning work extremely easy. In addition, the holding member can reduce the impact noise generated when the cassette lid is closed, and can also protect the top surface of the cassette mounted on the playing surface. It is something.

[Brief explanation of the drawing]

Figure 1 is a schematic explanatory diagram of a cassette tape recorder to which the device of the present invention is applied, Figure 2 is a perspective view of the main parts of the device of the present invention, and Figures 3 and 4 are different examples of attaching the holding member to the cassette lid. FIG. 2...Cassette insertion slot, 3...Cassette lid body,
6... Holding member, 7... Locking stepped portion.

Claims (1)

[Scope of utility model registration request] In a cassette type tape recorder having a cassette lid which is pivotally supported in a cassette insertion slot so as to be freely openable and closable and which is always rotationally biased in a direction to close the insertion opening, a holding member is moved between two positions on the cassette lid. When the holding member is set at the first position, the cassette lid is allowed to rotate in response to insertion and ejection of the cassette, and the cassette lid is moved by hand in the releasing direction. A cassette lid device characterized in that a locking portion is provided in the vicinity of a cassette insertion opening to maintain the opened state of the cassette lid when the holding member is moved from the first position to the second position after rotation. .