JPS6292264A - Cassette holder - Google Patents

Abstract

PURPOSE:To ensure the closing of a slide cover in extracting a tape cassette by adopting the constitution that the slide cover is closed forcibly at the tape cassette ejection by the contact between a projection and a lock release projection provided to the tape cassette. CONSTITUTION:In ejecting the tape cassette, the slide cover 3 is locked by a lock claw 9 and a lock hole 7, ejected integrally and moved to the left. Then the lock claw 9 is pushed up directly by a lock release projection 15 to release the locking. Since the left end of a projection 10 is in the state just before contact with the lock release projection 16, the slide cover 3 is locked forcibly in the left movement at the further ejection and only a cassette main body 1 is ejected. Then the slide cover 3 is closed during that time, the lock claw 9 is locked with a lock hole 8 to be in the closing position. In the succeeding ejection, the projection 10 overrides the lock release projection against a force of a cassette retaining spring 17 and extracted at the outside of the cassette holder 12. Thus, the closing of the closing cover is ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette holder suitable for a digital audio cassette recorder.

2. Description of the Related Art In recent years, a digital audio recorder using a tape cassette has been proposed, and a new tape cassette suitable for the digital audio recorder has been proposed.

The newly proposed tape cassette is equipped with a rotating lid that opens and closes the front opening and a sliding lid that opens and closes the bottom opening to prevent fingerprints, dirt, dust, etc. from adhering to the magnetic tape. , a new cassette holder compatible with these has become necessary.

Problems to be Solved by the Invention However, the proposed tape cassettes have a problem in that, depending on the structure of the cassette holder, there is a risk that the tape cassette may be pulled out of the cassette holder in an open state.

In view of the above problems, the present invention provides a cassette holder that solves the above problems by improving a part of the tape cassette and using the improved tape cassette.

Means for Solving the Problems In order to solve the above-mentioned problems, the cassette holder of the present invention includes an insertion guide means for guiding the insertion of the tape cassette in the main plane direction thereof, and a cassette holder provided on the lower plate of the holder at the front of the inside of the insertion guide means. A contact part for opening the sliding lid provided, sliding lid lock release protrusions provided on the lower plate of the holder at intervals in the insertion direction, and a tape cassette provided on the upper plate of the holder and inserted. The structure includes a biasing means for biasing the holder toward the lower plate of the holder.

In operation, the present invention has the above-described structure, so that the sliding lid is forcibly closed when the tape cassette is taken out by the contact between the newly provided protrusion on the tape cassette and the unlocking protrusion.

EXAMPLE Hereinafter, a cassette holder according to an example of the present invention will be described with reference to the drawings.

FIG. 5 is a bottom perspective view showing an embodiment of a newly proposed tape cassette with some improvements made to make it easier to use. In the figure, 1 is the cassette body, 2 is a rotating lid that opens and closes the front opening of the cassette body by rotation, and 3 is a lid that slides to open and close the bottom opening of the cassette body, and is locked in the 2 open/close positions. The sliding lid is always biased in the closing direction by a spring. Reference numeral 4 denotes a notch provided at the lower edge of the rotating lid 2, into which the front edge of the sliding lid 3 is seen. 5 is also a notch provided on the lower edge of the rotating lid 2, which communicates with a lock release member guide groove provided on the lower surface of the sliding lid 3. 6 is a lock release member guide groove;
Reference numerals 7 and 8 denote locking holes, and reference numeral 9 denotes a locking claw, which are provided at the tip of an elastic arm integrally formed on the lower surface of the cassette body 1, and are always biased outward. Reference numeral 10 denotes a protrusion provided in the unlocking member guide groove as an improvement related to the present invention, and is at the same height as the lower surface of the sliding lid 3. Further, the rising portion from inside the groove may be inclined at approximately 45°, or only the portion near the rotating lid 2 may be formed into a more gentle slope.

FIG. 6 is a partial side sectional view showing the relationship between the locking hole and the locking pawl. The figure shows the sliding lid 3 locked in the closed position. When opening, the locking claw is pushed upward by the locking release member to release the locking, and then the sliding lid 3 is opened. rear,
That is, it is moved to the left, and when the opening is completed, the locking pawl 9 engages with the locking hole 7 and is locked.

FIG. 1 shows the top surface of a cassette holder in a first embodiment of the present invention. In FIG. 1, 11 is a cassette holder, 12 is a holder upper plate, 13 is a holder lower plate, 1
4 is a contact portion for opening the sliding lid, 15.16J is a lock release projection, and 17 is a cassette pressing spring. FIG. 2 is a side sectional view thereof, and 18 is a cassette insertion slot.

FIG. 3 is a partial side sectional view showing the place where the tape cassette has been inserted and the sliding lid 3 has been opened.

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

As shown in FIG. 3, the tape cassette inserted into the cassette holder 12 with the sliding lid 3 open is taken out from this state even after use by grasping the rear end of the tape cassette. At this time, together with the cassette body 1, the rear end portion of the sliding lid 3 is also taken out in approximately half-pinch form. Also, since the sliding lid 3 is locked by the locking claw 9 and the locking hole 7, it is taken out as one piece and moved to the left.

Then, the locking pawl 9 comes into contact with the locking release protrusion 15 and is pushed up, thereby releasing the locking. At this time, the left end of the protrusion 10 is on the verge of contacting the unlocking protrusion 16, so the sliding lid 3 is forcibly stopped in place when it moves to the left during the subsequent ejecting operation. Only the cassette body 1 is taken out.

During this time, the sliding lid 3 is closed, and the locking pawl 9 engages with the locking hole 8 to lock it in the closed position. In the subsequent ejecting operation, the protrusion 10 resists the force of the cassette pressing spring 17, climbs over the unlocking protrusion 16, and is ejected out of the cassette holder 12.

As described above, according to this embodiment, the sliding lid opening abutting portion provided on the holder lower plate at the inner front of the tape cassette insertion guide means and The sliding lid can be locked by providing sliding lid lock release protrusions provided at intervals and a biasing means provided on the upper plate of the holder to bias the inserted tape cassette toward the lower plate of the holder. By utilizing the abutment between the protrusion provided in the release member guide groove and the lock release protrusion, the sliding lid can be reliably closed when the tape cassette is taken out.

The second embodiment of Mizumotoma will be described below with reference to the drawings.

FIG. 4 is a sectional side view of a main part of a cassette holder showing a second embodiment of the present invention. In the same figure, reference numeral 19 denotes a lock release projection, and 2o denotes a leaf spring that supports the lock release projection 19 and is attached to the lower surface of the holder lower plate 13.

With this configuration, the elastically supported locking release protrusion 19 releases the locking claw 9 of the inserted closed tape cassette, making it possible to open the sliding lid 3 while inserting the tape cassette. When the tape cassette is taken out, the movement of the sliding lid 3 is temporarily blocked by engagement with the locking hole 8, and the tape cassette can be taken out after being completely closed.

By supporting the unlocking protrusion near the cassette insertion slot upward with a spring force, it is possible to release the lock and close the sliding lid using the locking hole. This allows the movement of the sliding lid to be temporarily blocked without requiring a protrusion on the sliding lid.

Effects of the Invention As described above, the present invention includes an insertion guide means for inserting and guiding a tape cassette in the direction of its main plane, a sliding lid opening abutting portion provided on the holder lower plate at the rear and front side of the insertion guide means, Sliding lid lock release protrusions provided on the lower plate of the holder at intervals in the direction of insertion, and biasing means provided on the upper plate of the holder to bias the inserted tape cassette toward the lower plate of the holder. By providing this, the sliding lid can be reliably closed when the tape cassette is taken out.

[Brief explanation of drawings]

FIG. 1 is a top view of a cassette holder according to a first embodiment of the present invention, FIG. 2 is a side sectional view thereof, FIG. 3 is a partial side sectional view showing a tape cassette inserted state, and FIG. 4 is a cassette holder according to the present invention. Fig. 5 is a bottom perspective view of an embodiment of the newly proposed tape cassette used in the cassette holder of the present invention;
FIG. 6 is a partial side sectional view showing the sliding lid locked in the closed position. 1...Cassette body, 2...Rotating lid,
3... Sliding lid, 7, 8... Locking hole, 9
...Latching claw, 1o...Protrusion, 12...
...Cassette holder, 16.16...Latch release protrusion, 17...Cassette pressing spring, 19.
...Latch release protrusion.

Claims (2)

[Claims] (1) An insertion guide means for guiding the insertion of the tape cassette in the main plane direction, a sliding lid opening contact part provided on the lower plate of the holder at the front of the inside of the insertion guide means, and It is characterized by comprising sliding lid lock release protrusions provided on the plate at intervals in the front and back, and biasing means provided on the holder upper plate to bias the inserted tape cassette toward the holder lower plate. cassette holder. (2) The cassette holder according to claim 1, wherein the sliding lid lock release protrusion closer to the tape cassette insertion opening is supported by being biased upward by a spring.