JPH0754601B2 - Cassette holder - Google Patents

Description

BACKGROUND OF THE INVENTION 1. 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, digital audio recorders using tape cassettes have been proposed, and new tape cassettes therefor have been proposed.

The newly proposed tape cassette has a rotating lid that opens and closes the front opening to prevent fingerprints, dust, and dust from attaching to the magnetic tape, and a sliding lid that opens and closes the bottom opening. A corresponding new cassette holder is needed.

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

FIG. 9 is a top perspective view of the proposed tape cassette, in which 1 is a cassette body, 2 is a rotating lid for rotating and opening the front opening of the cassette body 1, and 3 is an opening on the bottom surface of the cassette body. A sliding lid that slides to open and close and is locked in the open / closed 2 position is always spring-biased in the closing direction. Reference numeral 4 is a notch provided at the lower end of the rotary lid 2, and the front edge of the sliding lid 3 is seen inside the notch. Reference numeral 5 is also a notch provided at the lower end of the rotary lid 2, and communicates with a lock release projection guide groove provided on the lower surface of the sliding lid 3.

FIG. 10 is a bottom perspective view thereof, 6 is a lock release projection guide groove,
7, 8 are locking holes, and 9 are locking claws, which are provided at the tip of an elastic arm integrally formed with the cassette body 1 on the lower surface of the cassette body 1 and are always urged outward. .

FIG. 11 is a side view showing the state in which the sliding lid 3 and the rotating lid 2 are opened.

12 is a partial side sectional view showing the sliding lid 3 locked at the closed position, and FIG. 13 is a partial side sectional view showing the sliding lid 3 locked at the open position.

FIG. 14 is a top view showing an essential part of an embodiment of the cassette holder. 10 is a cassette holder, 11 is a holder upper plate, 12 is a holder lower plate, and 13 is a sliding lid opening protrusion, which is one of the holder lower plates 12. It is formed by bending up the portion and is located at a position corresponding to the notch 4 of the rotary lid 2. Reference numeral 14 is a sliding lid locking release projection which is projected from the holder lower plate 12 onto the bead. Reference numeral 15 is a cassette pressing spring that presses the tape cassette provided on the upper plate of the holder downward. FIG. 15 is a side cross section thereof.

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

First, when the tape cassette in the closed state is inserted into the cassette holder, the locking claw 9 comes into contact with the left end of the locking release projection 14 to release the locking, and immediately after that, the front edge of the sliding lid 3 slides. It abuts on the movable lid opening projection 13. When the tape cassette body 1 is further inserted, the sliding lid 3 is completely opened, and the sliding hole 3 and the locking claw 9 are locked in the open position to complete the insertion. FIG. 16 is a partial side sectional view showing a state where the insertion is completed.

The tape cassette inserted in this way is the cassette holder.
It moves to the playing position with 10, and after the performance ends, it returns to the insertion position and is taken out.

Problems to be Solved by the Invention However, in the above-mentioned structure, when the tape cassette in the state shown in FIG. 16 is taken out, the cassette body 1 and the sliding lid 3 are usually held together and pulled out. Even if the sliding lid 3 itself has a spring-biased restoring force in the closing direction, the sliding lid 3 and the cassette holder 10 are caused by the sliding frictional force between the sliding lid 3 and the cassette body 1 and the force of the cassette pressing spring. Due to the frictional force between the guide surface, etc., a sufficient closing force cannot be obtained,
Even if the right end of the lock release projection 14 and the lock claw 9 are contacted with each other to release the lock, there is a problem in that the lock release protrusion 14 cannot be closed out by coming out from between the pinched fingers.

In view of the above problems, the present invention provides a cassette holder that can reliably close the sliding lid when the tape cassette is taken out.

Means for Solving the Problems In order to solve the above problems, the cassette holder of the present invention has an insertion guide means for inserting and guiding the tape cassette in the main plane direction thereof, and a slide provided in a guide path of the insertion guide means. It is provided with a moving lid locking release projection and a sliding lid opening projection, a sliding lid closing projection provided at a position corresponding to both reel stands, and a biasing means for biasing the tape cassette downward. .

With the above-described configuration, the present invention makes it possible to forcibly close the sliding lid when the tape cassette is taken out from the cassette holder, with the sliding lid closing projection engaging the engaged portion of the sliding lid. Become.

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

FIG. 7 is a perspective view showing the lower surface of an embodiment of a tape cassette improved to suit the cassette holder of the present invention.
Is an engaged portion. The engaged portion 21 may be a recess formed by a through hole or a recess formed by a non-through hole. In the figure, it is positioned between the left and right reel stands. Reference numeral 22 is a place to be an abutting portion when closed.

FIG. 8 is a bottom perspective view of another embodiment of the tape cassette in which the engaged portion is provided at another position. Denoted at 23 is a locked portion, which is formed by recesses provided on the left and right side surfaces of the sliding lid 3.

FIG. 1 is a top view of the first embodiment of the present invention.
Reference numeral 16 is a sliding lid closing projection which is projected on the holder lower plate 12 and has a gentle inclined surface formed toward the tape cassette to be inserted so that the insertion can be smoothly carried out. FIG. 2 is a side sectional view thereof. This cassette holder corresponds to the tape cassette shown in FIG. 7. At the end of insertion, the recess 21 is located above the sliding lid closing projection 16 and is in a non-interfering state with each other. When the tape cassette is taken out, it comes into contact with the right slant surface of the sliding lid closing protrusion and the side surface 22 forming the concave portion of the engaged portion 21 of the tape cassette, and is forcibly stopped in that position until the sliding lid 3 is completely closed. . After closing, the cassette holding spring 15 is flexed to take out the sliding lid closing protrusion 16 over the protrusion.

FIG. 3 is a top view of the cassette holder according to the second embodiment of the present invention. In the figure, reference numeral 17 denotes a sliding lid closing protrusion, which is formed of an elastic body such as a leaf spring. 18 is the lower plate of the holder
In the square hole provided in 12, the sliding lid closing protrusion protrudes from the lower side. By elastically supporting the sliding lid closing protrusion 17 in this way, it is possible to easily give a certain limit value to the closing force of the sliding lid 3 and to insert and remove more smoothly. Alternatively, the cassette pressing spring 15 can be omitted. FIG. 4 is a side sectional view thereof.

As shown in FIGS. 1 and 3, the sliding lid closing protrusions 16 and 17 are formed of light-reflecting members and arranged between the reel stands or below the tape winding layer portion in the tape cassette. The amount of tape can be easily seen through the transparent window. Further, since it is necessary to provide only one sliding lid closing protrusion by providing it between the reel stands, the structure can be simplified.

FIG. 5 is a top view of the cassette holder according to the third embodiment of the present invention and corresponds to the tape cassette shown in FIG. In FIG. 5, reference numeral 19 is a sliding lid closing projection that is elastically projected from the outside of the holder side plate to the insertion guide path. FIG. 6 is a side sectional view thereof. Reference numeral 20 is an opening provided in the holder side plate.

With this configuration, the sliding lid can be forcibly closed with a force within a certain limit by engaging with the engaged portion 23 provided on the side surface of the sliding lid of the tape cassette, and at the same time, the tape cassette by elastic force. The influence on the height direction of the can be reduced.

EFFECTS OF THE INVENTION As described above, according to the present invention, there is provided an insertion guide means for inserting and guiding a tape cassette having a sliding lid which is slidably opened / closed at the bottom opening and locked at the open / closed 2 position in the main plane direction. , A sliding lid locking release projection and a sliding lid opening projection provided in the guide path of the insertion guide means, a sliding lid closing projection provided at a position corresponding to both reel stands, and a tape cassette downward. By providing the urging means for urging, it is possible to realize a cassette holder that can be taken out with the sliding lid securely closed with an extremely simple structure.

[Brief description of drawings]

1 is a top view of a cassette holder according to the first embodiment of the present invention, FIG. 2 is a side sectional view thereof, and FIG. 3 is a top view of a cassette holder according to the second embodiment of the present invention. Is a side sectional view thereof, FIG. 5 is a top view of the cassette holder in the third embodiment of the present invention, FIG. 6 is a side sectional view thereof, and FIG.
FIG. 8 is a bottom perspective view of the first embodiment of the tape cassette used in the present invention, FIG. 8 is a bottom perspective view of the second embodiment of the tape cassette used in the present invention, and FIG. 9 is the proposed tape cassette. Fig. 10 is a top perspective view of the
FIG. 11 is a side view showing the lid open state, FIG. 12 is a partial side sectional view showing the relationship between the locking hole and the locking claw in the sliding lid closed state, and FIG.
The figure is a partial side sectional view showing the relationship between the locking holes and the locking claws in the state where the sliding lid is open, FIG. 14 is a top view showing a cassette holder using the proposed tape tset, and FIG. 15 is the same. Side sectional view, FIG. 16 is a partial side sectional view showing a state in which the tape cassette is inserted. 1 ... Cassette body, 2 ... Rotating lid, 3 ... Sliding lid, 7,
8: Locking hole, 9: Locking claw, 10: Cassette holder, 1
4 …… Unlocking projection, 16,17,19 …… Sliding lid closing projection.

Claims (4)

[Claims] Claims: 1. Insertion guide means for inserting and guiding a tape cassette having a sliding lid which is slidably opened and closed by opening and closing at the bottom opening to be locked at the open and close position 2 in the main plane direction, and guide of the insertion guide means. Sliding lid locking release projection and sliding lid opening projection provided in the path, sliding lid closing projection provided at a position corresponding to both reel stands, and biasing means for biasing the tape cassette downward. A cassette holder characterized by having and. 2. The cassette holder according to claim 1, wherein the sliding lid closing projection has a gentle inclined surface toward the tape cassette into which it is inserted. 3. A cassette holder according to claim 1, wherein the sliding lid closing projection is elastically supported. 4. The cassette holder according to claim 1, wherein the sliding lid closing protrusion is formed of a member that reflects light.