JPH06101219B2 - Tape cassette - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to an improvement of a newly proposed tape cassette for digital audio.

2. Description of the Related Art A newly proposed tape cassette has a rotating lid that opens and closes by opening the front opening, and a slide that opens and closes by opening a bottom opening that is continuous with the front opening. There is a moving lid that allows you to pull out the tape when using it and protect the tape when storing the tape. The cassette holder of the cassette recorder using this is required to be able to open and close these lids reliably.

An example of the above-described conventional tape cassette and a cassette holder using the same will be described below with reference to the drawings.

FIG. 12 is a top perspective view of the proposed tape cassette, where 1 is the cassette body, 2 is a rotating lid that opens and closes by opening the front opening, and 3 is a slide on the opening provided on the bottom of the cassette body. A sliding lid that opens and closes and is locked at the opening and closing 2 position is always spring-biased in the closing direction. Reference numeral 4 is a notch provided at the lower edge of the rotary lid 2, and the front edge of the sliding lid 3 is seen inside the notch. 5
Also, a notch provided on the lower edge of the rotary lid 2 leads to a guide groove of the slide lid locking release projection provided on the lower surface of the slide lid 3. FIG. 13 is a bottom perspective view thereof. In the same figure, 6 is an unlocking projection guide groove, 7.8 is a locking hole, and 9 is a locking claw, which is the cut body 1.
It is provided at the tip of an elastic arm integrally formed with the cassette body 1 on the lower surface of and is always urged outward. Reference numeral 10 is a reel shaft insertion hole provided in the sliding lid 3 and comes to a hole position on the main body side when it is opened. FIG. 14 is a side view showing an open state of the sliding lid 3 and the rotating lid 2.

FIG. 15 is a top view showing a main part of a conventional cassette holder. In FIG. 15, 11 is a cassette holder, 12 is a holder bottom plate, 13 is a sliding lid opening protrusion, and 14 is a sliding lid locking release protrusion, which are cut and raised from the holder bottom plate. Reference numeral 15 is a reel shaft insertion hole, 16 is a holder upper plate, and 17 is a tape cassette inserted with a cassette pressing spring, which is pressed toward the holder bottom plate 12.

FIG. 16 is a side view thereof.

The operation of the cassette holder configured as described above will be described below.

First, when the tape cassette in the state shown in FIG. 12 is inserted into the cassette holder with its rotating lid facing forward, the sliding lid 3 by the locking claw 9 is caused by the rear end of the sliding lid locking release protrusion 14.
, The front edge of the sliding lid 3 comes into contact with the sliding lid opening projection, and only the cassette body 1 is further inserted by the subsequent insertion of the tape cassette. 3 is released and in the open position, it is locked again by the locking claw 9, the locking claw 9 and the locking hole 7, and the insertion is completed. From this state, the cassette holder 11 is moved downward together with the cassette substantially perpendicularly to the insertion direction and brought to the playing position. During this operation, the rotary lid is pushed up and opened. To take out the cassette, the cassette holder may be lifted from the playing position to the insertion end position and then the rear end of the cassette may be grasped and taken out. By this take-out operation, first, the locking of the sliding lid 3 at the open position is released by pushing up the locking claw 9 at the front end of the sliding lid locking release protrusion 14 and the sliding lid 3 is closed. By the force of the urging spring, the sliding lid 3 stays in that position until the bottom opening is completely closed, and only the cassette body 1 is taken out and completely closed, and then the sliding lid 3 is taken out together with the cassette body 1. Will come. Therefore, the sliding lid 3 is completely closed in the taken-out state and is locked at that position so that it cannot be intentionally opened.

Problems to be Solved by the Invention However, in the above configuration, when the sliding lid 3 has a weak restoring force or has a bad movement and cannot be restored by itself, the cassette is taken out. However, there is a problem that the sliding lid may not be completely closed.

In view of the above-mentioned problems, the present invention provides a tape cassette which can semi-forcibly close the sliding lid when the cassette is taken out and which can be closed reliably.

Means for Solving the Problems In order to solve the above problems, the tape cassette of the present invention has a structure in which a notch hole or a stepped portion that is connected to the reel shaft insertion hole of the sliding lid is provided. Is.

When the present invention is used in a cassette holder having a projection on the bottom plate of the cassette holder except for the reel shaft insertion hole according to the above-described structure, it has a notch hole or a notch hole which is connected to the reel shaft insertion hole of the sliding lid when the cassette is taken out. By the engagement between the stepped-down portion and the protrusion, the sliding lid is kept in the engagement position until it is completely closed, so that the closing can be surely performed.

Embodiment A tape cassette according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the lower surface of the tape cassette according to the first embodiment of the present invention. 10 is a reel shaft insertion hole,
It is formed with a deformed hole different from the circular hole in FIG.

FIG. 2 is a bottom view of the sliding lid 3.

3 to 6 are bottom views of the sliding lid of the tape cassette according to the present invention, each showing a modified reel shaft insertion hole.

That is, FIG. 3 shows a notch for connecting both reel shaft insertion holes, FIG. 4 shows an ellipse elongated in the left-right direction, and FIG. FIG. 6 is a hole formed by a step drop, not by a notch penetrating the deformed portion, and 10 'is a step drop portion. FIG. 7 is a side sectional view thereof. If it is formed by a stepped portion as shown in FIG. 6, it can be formed in any shape without sacrificing the function as a lid.

FIG. 8 is a top view of an embodiment of a cassette holder suitable for using such a tape cassette. 11 is a cassette holder, 12 is a holder bottom plate, 13 is a sliding lid opening protrusion, and 14 is a sliding lid locking release. The protrusions are cut and raised from the bottom plate of the holder. 15 is a reel shaft insertion hole, 16 is a holder upper plate, 17 is a tape holder inserted with a cassette pressing spring, and a holder bottom plate 12
Press toward. Reference numeral 18 denotes a protrusion provided on the holder bottom plate 12 adjacent to the reel shaft insertion hole. FIG. 9 is a partial side sectional view thereof. Therefore, as the sliding lid 3, those shown in FIG. 2, FIG. 3, FIG.

FIG. 10 is a top view of another embodiment of the cassette holder, showing the protrusions.
FIG. 11 is a partial side cross-sectional view in which 18 is changed in position. Therefore, the sliding lid 3 shown in FIGS. 5 and 6 is applicable.

As described above, by providing the notch hole or the stepped portion that is connected to the reel shaft insertion hole of the sliding lid, the sliding lid can be securely engaged with the protrusion provided on the holder bottom plate when taking out the cassette. The sliding lid can be opened even when using a cassette that has a problem in the sliding lid return operation, or when you try to grab the rear end of the sliding lid at the same time as the cassette body to take it out. It is possible to eliminate the risk of being taken out.

As described above, according to the present invention, the reel shaft insertion hole of the sliding lid that slides and opens the bottom opening is provided with the notch hole or the stepped portion that is connected to the reel shaft insertion hole, and the protrusion that engages with these holes. By using the cassette holder having the above, it is possible to securely close the sliding lid when the cassette is taken out. Further, the notch amount can be minimized by connecting with the reel shaft insertion hole, which is preferable in terms of strength of the sliding lid, or in terms of molding and appearance.

[Brief description of drawings]

1 is a bottom perspective view of a tape set according to the first embodiment of the present invention, FIG. 2 is a bottom view of a sliding lid thereof, and FIGS. 3 to 6 are slides of a tape cassette according to the embodiment of the present invention. FIG. 7 is a bottom view of the movable lid, FIG. 7 is a partial side sectional view showing a step-down portion in FIG. 6, and FIG. 8 is a top view of an embodiment of a cassette holder suitable for using the tape cassette according to the present invention. Is a partial side sectional view thereof, FIG. 10 is a top view of another embodiment of the cassette holder, FIG. 11 is a partial side sectional view thereof, FIG. 12 is a top perspective view of a proposed tape cassette, and FIG. Is a bottom perspective view of the same, and FIG. 14 is a side view showing its opened state.
FIG. 15 is a top view of a conventional cassette holder, and FIG. 16 is a side view thereof. 1 ... Cassette body, 2 ... Rotating lid, 3 ... Sliding lid, 10
…… Reel shaft insertion hole, 10 …… Step drop part, 11 …… Cassette holder, 12 …… Holder bottom plate, 14 …… Sliding lid locking release protrusion, 15 …… Reel shaft insertion hole, 17 …… Cassette holder Spring,
18 ... Protrusion.

Claims (1)

[Claims] 1. A tape cassette which is provided with a reel shaft insertion hole of a sliding lid for slidingly opening and closing a bottom opening, and a notch hole or a stepped portion connected to the reel shaft insertion hole.