JP3043969B2 - Cassette loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading device for a compact cassette or the like.

[0002]

2. Description of the Related Art In a conventional horizontal cassette loading apparatus, when a tape cassette is not properly mounted in a cassette drawing recess formed in a tray on which the tape cassette is mounted, the tray is moved from a take-out position to a holder. When the tape cassette is moved to the storage position, the tape cassette falls from the tray and damages the tape cassette.

Hereinafter, a conventional cassette loading apparatus will be described with reference to the drawings. 10 to 13
FIG. 2 is a cross-sectional view of a part of a conventional cassette loading device. In FIG. 10, a holder 50 allows the tape cassette 52 to be mounted on the tape playing mechanism in a state where the tray 5 is stored, and the tray 51 extends along the inside of the holder 50 so that the tray 51 is moved in the direction of the storage position and the take-out position. That is, it is configured to move in the direction of arrow AB,
At the rear of the receiving surface 51b of the tray 51, a cassette recess 51a is formed. The tape cassette 52 is placed on the receiving surface 51 of the tray 51 so that the projection 52a of the tape cassette 52 fits into the cut-in recess 51a.
11B, the tray 51 is taken out from the take-out position and is loaded in the direction indicated by arrow A, which is the direction of the storage position, as shown in FIG. 11, so that the upper surface of the tape cassette 5 is pressed by the cassette pressing spring 53 to the receiving surface 51b. When pressed, the tape cassette 52 is loaded without coming off the tray 51 and moves to the storage position.

[0004]

However, FIG.
As shown in FIG.
Is placed on the receiving surface 51b of the tray 51 and the projection 52a
When the tray 51 is pulled in the direction of the arrow A as shown in FIG. 13, the tape cassette is provided downward above the storage position side of the holder 50 when the tray 51 is pulled in as shown in FIG. The loading end of the tape cassette 52 abuts against a cassette pressing spring 53 configured to hold the tape cassette 52, and the tray 51 moves with the tape cassette 52 remaining. It falls from the tray 51 while tilting. There was a problem that the tape cassette 52 was damaged by such a drop of the tape cassette 52.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned conventional problems, and provides a cassette loading apparatus in which a tape cassette does not drop from a tray during a tray loading operation even if a cassette case is insufficiently mounted on the tray. It is intended for.

[0006]

According to a first aspect of the present invention, there is provided a cassette loading apparatus for mounting a tape cassette having a convex portion on a mounting surface and a drop prevention portion on a side opposite to the mounting surface. A tray having a receiving surface on which the mounting surface is mounted, and a receiving surface for receiving the cassette retracting recess into which the convex portion is fitted; a storage position where the tape cassette can be mounted on the tape playing mechanism; A holder for holding the tray so as to be movable between a detachable removal position and the holder. When the tape cassette is moved from the unloading position to the storage position, the tape cassette is prevented from moving by the movement preventing portion. By tilting the dropping direction and is characterized in that a latching portion for fall prevention part is caught by the holder.

According to a second aspect of the present invention, there is provided a cassette loading apparatus.
In claim 1, the fall prevention portion is a hole, the movement prevention portion is a cassette pressing spring that presses the tape cassette toward the receiving surface, and the catch portion is a drop prevention projection.

[0008]

According to the first aspect of the present invention, when the tape cassette is placed on the tray, the convex portion is fitted into the cassette retracting recess, and the tray is retracted to the storage position, the tape playing operation can be performed. Becomes on the other hand,
If the tray is retracted while the tape cassette's protrusion is not fitted into the cassette recess, the movement of the tape cassette is blocked by the holder's movement prevention part, and the tape cassette falls while tilting toward the front end of the tray. However, when the tape cassette inclines, the fall prevention portion of the tape cassette catches on the catch portion of the holder, and the drop of the tape cassette is prevented.

As described above, when the tray is retracted when the tape cassette is not sufficiently mounted on the tray and the convex portion of the tape cassette is not fitted in the concave portion for retracting the cassette, the tape cassette is moved. The tape cassette is tilted in the direction of falling from the front end of the receiving surface, and the holder is provided with a hook for catching the tape cassette's fall prevention unit. Can be prevented.

According to the cassette loading device of the second aspect, in the first aspect, the fall prevention portion is a hole,
The movement preventing portion is a cassette pressing spring that presses the tape cassette toward the receiving surface, and the catching portion is a drop prevention projection. become.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cassette loading apparatus according to an embodiment of the present invention will be described with reference to FIGS. That is, FIG.
Is an external perspective view of a cassette deck provided with the cassette loading device of this embodiment, FIG. 2 is a plan view of the cassette loading device, FIG. 3 is a front view thereof, FIG. 4 is a side view thereof, and FIG. FIG. 6 is a side view showing the mounting and unloading positions of the tape cassette, FIG. 7 is a cross-sectional view showing an insufficiently mounted state of the tape cassette, and FIG. 8 is a diagram showing a state where the tape cassette hits the cassette holder by the tray retracting operation. FIG. 9 is a cross-sectional view of the tape cassette in an inclined state, and FIG. 9 is a cross-sectional view of the tape cassette in a state in which a fall prevention hole is hooked on a fall prevention projection.

In FIG. 1, reference numeral 1 denotes a tape playing mechanism, which is horizontally mounted on a bottom case 3 provided on a lower surface of a panel 2 of a cassette deck. Reference numeral 2a denotes a loading knob of a cassette deck, 4 denotes an outer case, 5 denotes a tape cassette, and the tape cassette 5 has a convex portion 5a on a mounting surface, and has a hole on the side opposite to the mounting surface to prevent falling. Although it has a portion 5c, it is formed on both surfaces in the embodiment.
Reference numeral 6 denotes a tray, which has a receiving surface 6b on which the mounting surface of the tape cassette 5 is mounted, and has on the receiving surface 6b a concave portion 6a for retracting the cassette into which the convex portion 5a is fitted.

As shown in FIGS. 2 to 4, the base 7 is rotatably supported by the tape playing mechanism 1 so as to be rotatable in the direction of a fixed arrow with a shaft 7a, and the holder 8 is provided with a hole 7b at one end of the base 7. The tray 6 is guided by a guide portion 8b provided inside the holder 8 so as to be slidable in the direction indicated by the arrow. Holder 8
End 8c of the tape playing mechanism 1 is movably guided by a concave portion 9a of a hook 9 supported on the shaft 1a of the tape playing mechanism 1. When the base 7 rotates in the direction of the arrow, the shaft portion 8a and the one end 8c are rotated.
Thus, the holder 8 is configured to move up and down in the direction of the arrow Ho while maintaining a substantially horizontal posture. Therefore, the holder 8 is used to mount the tape cassette 5 on the tape playing mechanism 1.
And the tape cassette 5 in the tray 6
The tray 6 is held so as to be movable between a detachable position and a take-out position.

Reference numeral 10 denotes a drive rack of drive means, which is provided on the lower surface of the tape playing mechanism 1 together with the loading motor 18 (FIG. 3). The drive rack 10 is driven by an arrow by a rack and pinion mechanism known by the operation of the loading motor 18. It is configured to be driven in the honey direction. The hook 9 is rotated in the direction indicated by the arrow torch by the movement of the drive rack 10, and the leaf switch 11 is moved
The tape cassette 5 of the tray 6 stored in the holder 8 is easily opened and closed on the tape playing mechanism 1.

When the driving rack 10 is driven in the direction indicated by the arrow, the auxiliary rack 12, which is a known tray driving means,
Intermediate gear 13, drive gear 14, base 7 and holder 8
Thus, the tray 6 is configured to be driven to the take-out position and the storage position in the direction of the arrow honey, and to be moved up and down in the direction of the arrow ho. That is, when the shaft 10a provided on the drive rack 10 is fitted into the cam groove 7c of the base 7 and the long hole 12a of the auxiliary rack 7, and the drive rack 10 moves in the direction of arrow C from the state of FIG. By moving the groove 7c, the base 7 rotates in the direction of arrow A about the shaft portion 7a as shown in FIG. 5, so that the holder 8 rises in the direction of arrow E while being guided from the lowered position by the guide portion 9a. Ascend to position. On the other hand, the intermediate gear 13 and the driving gear 1 provided on the base 7 with the rotation of the base 7
4 and the auxiliary rack 12 also rotate, and as the shaft 10a located at the end of the elongated hole 12a of the auxiliary rack 7 in the direction of arrow C pushes the auxiliary rack 12 to move in the direction of arrow C, supports the tip of the auxiliary rack 12. Guide portion 7f of base 7
The auxiliary rack 12 assumes a horizontal posture while the tip of the auxiliary rack 12 slides and meshes with the intermediate gear 13. When the drive rack 10 further moves in the direction of arrow C, the auxiliary rack 1
2 moves horizontally, the intermediate gear 13 rotates, the driving gear 14 meshing with the intermediate gear 13 rotates, and the tray 6 meshing with the driving gear 14 and the rack moves horizontally and moves in the direction of arrow C as shown in FIG. Then, the window hole 2a of the panel 2 of the cassette deck
And the tape cassette 5 placed on the tray 6 can be taken out or replaced. When the tray 6 is mounted on the tape playing mechanism 1, the operation is performed by moving the drive rack 10 in the direction indicated by the arrow D opposite to the above, and the drive gear 14 and the intermediate gear 1 are moved with the operation of the drive rack 10.
3 and the auxiliary rack 12 operate in the opposite direction to
Moves in the direction of arrow d to be housed in the holder 8, the base 7 rotates in the direction of arrow B, the holder 8 descends in the direction of arrow, and the tape cassette 5
Is attached to the tape playing mechanism 1.

Reference numeral 15 denotes a cassette holding spring, and the holder 8
The tape cassette 5 is provided on the upper side of both sides on the storage position side, and is pressed down to the receiving surface 6b side during a performance or the like while being held at the storage position. When the tray 6 is moved from the take-out position to the storage position in a state where the tape cassette 5 is placed on the receiving surface 6b without the protrusion 5a being fitted into the cassette retracting recess 6a, the cassette presser spring 15 5 also serves as a movement blocking unit that blocks movement.

4 to 6, reference numeral 16 denotes a lid, which is pivotally supported by the panel 2 at a shaft portion 16a and is urged to close by a spring 16b. The operating piece 8b of the holder 8 is engaged with the engaging portion 1 on the back surface of the lid 16 so that the operating piece 8b rotates and opens in the direction of the nut against the spring 16b.
6c. FIG. 5 shows a state where the drive rack 10 is driven in the direction of arrow C, the holder 8 rises in the direction of arrow E, and the lid 16 is opened in the direction of arrow R.

FIG. 6 shows a state in which the drive rack 10 is further moved in the direction of arrow C, and the tray 6 and the tape cassette 5 are driven in the direction of arrow C to come out of the window 2a of the cover 16 of the panel 2. . When the tape cassette 5 is mounted on the tray 6, usually, the tape cassette 5 is mounted on the tray 6 so that the projection 5 a of the tape cassette 5 fits into the cassette drawing recess 6 a formed on the tray 6. Then, the tray 6 is loaded in the direction of arrow D, and FIGS.
The tape cassette 5 is loaded without dropping from the tray 6 as shown in FIG. However, as shown in FIG. 7, the convex portion 5a of the tape cassette 5 is
When the tray 6 is erroneously placed on the receiving surface 6b of the tray 6 without being fitted into the tray 6, and the tray 6 is loaded in the direction of arrow D as shown in FIG. 5b comes into contact with the cassette pressing spring 15, and the convex portion 5a of the tape cassette 5 slides on the receiving surface 6b of the tray 6, rotates in the direction of the arrow, and tries to drop while tilting from the front end side of the tray 6.

In FIGS. 7 to 9, reference numeral 8d designates a hook portion which has a fall prevention projection formed on the lower surface of the upper portion of the holder 8 on the side where the cassette tape 5 is taken out, as shown in FIG. When the insertion end 5b of the tape cassette 5 comes into contact with the cassette pressing spring 15, the projection 5a of the tape cassette 5 slides on the receiving surface 6b of the tray 6, and the tape cassette 5 rotates in the arrow direction and tilts, the tape cassette 5 As shown in FIG. 9, the fall prevention portion 5c is caught by the catch portion 8d of the holder 8 to prevent the fall, and the tape cassette 5 does not fall even if the tray 6 is loaded in the direction of arrow C.

According to this embodiment, as shown in FIG.
When the convex portion 5a of the tape cassette 5 is erroneously mounted on the receiving surface 6b of the tray 6 and the tray 6 is loaded in the direction indicated by the arrow D as shown in FIG. , Convex portion 5a of tape cassette 5
Slides on the receiving surface 6b of the tray 6 and is inclined in the direction of the arrow, and the fall prevention portion 5c of the tape cassette 5 is engaged with the catching portion 8d of the holder 8 as shown in FIG. . As a result, even if the tray 6 is loaded in the direction of arrow C, the tape cassette 5 does not drop.

Further, since the hook portion 8d is provided integrally, there is no need to separately add a component. In addition, the fall prevention part 5c of the embodiment is formed by the hole, but may be formed by the step part. In addition, the convex portion 5a and the drop prevention portion 5c of the tape cassette 5 may use the existing convex portion of the tape cassette 5 and an existing hole applicable to drop prevention, or may be newly provided in the tape cassette 5. Good.

[0022]

According to the cassette loading device of the first aspect, when the tape cassette is not sufficiently mounted on the tray and the convex portion of the tape cassette is not fitted into the cassette retracting concave portion, the tray is opened. When the retracting operation is performed, the holder is provided with a movement preventing portion for preventing the movement of the tape cassette, and the tape cassette is inclined in a direction in which the tape cassette falls from the front end of the receiving surface. Because it was provided in
There is an effect that the tape cassette can be prevented from dropping.

According to the cassette loading device of the second aspect, in the first aspect, the fall prevention portion is a hole,
The movement preventing portion is a cassette pressing spring that presses the tape cassette toward the receiving surface, and the catching portion is a drop prevention protrusion. become.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a cassette deck provided with a cassette loading device according to one embodiment of the present invention.

FIG. 2 is a plan view of the cassette loading device.

FIG. 3 is a front view of the cassette loading device.

FIG. 4 is a side view of the cassette loading device.

FIG. 5 is a side view showing a raised position of a holder of the cassette loading device.

FIG. 6 is a side view showing a position at which a tape cassette is loaded and unloaded in the cassette loading device.

FIG. 7 is a cross-sectional view showing an insufficiently mounted state of the tape cassette.

FIG. 8 is a cross-sectional view illustrating a state in which the tape cassette abuts on the cassette retainer and is inclined by the tray retracting operation.

FIG. 9 is a cross-sectional view showing a state in which a fall prevention hole is hooked on a fall prevention projection due to the inclination of the tape cassette.

FIG. 10 is a cross-sectional view of a conventional cassette loading device at a position where a tape cassette is loaded and unloaded.

FIG. 11 is a sectional view of the cassette loading device in a state where a tray is stored.

FIG. 12 is a cross-sectional view showing an incompletely mounted state of a tape cassette at a mounting and unloading position of a tape cassette in a conventional example.

FIG. 13 is a cross-sectional view showing a state in which the tape cassette is pushed to the take-out position side by the cassette retainer by the tray pull-in operation, and the tape cassette is inclined and falls.

[Explanation of symbols]

 Reference Signs List 5 Tape cassette 5a Convex part 5c Fall prevention part 6 Tray 6a Cassette draw-in concave part 6b Receiving surface 8 Holder 8d Hook part 15 Cassette holding spring also serving as movement prevention part

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Naoto Noguchi 1006 Oaza Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-61-8766 (JP, A) JP-A-61- 13467 (JP, A) JP-A 2-105257 (JP, U) JP-A 60-70953 (JP, U) JP-A 58-65667 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) G11B 15/675 101

Claims (2)

(57) [Claims] 1. A tape cassette having a convex portion on a mounting surface and a drop prevention portion on a side opposite to the mounting surface, and having a receiving surface for mounting the mounting surface. A tray having a cassette pull-in recess on the receiving surface for fitting the projection, a storage position where the tape cassette can be mounted on a tape playing mechanism, and a take-out position where the tape cassette can be attached to and detached from the tray. And a holder for holding the tray so as to be movable between the trays, wherein the holder is provided with the tape cassette resting on the receiving surface without the convex portion being fitted into the cassette retracting concave portion. Has a movement preventing portion for preventing the movement of the tape cassette when the tape cassette moves from the take-out position to the storage position. A cassette loading device, wherein the holder is provided with a catching portion for catching the fall prevention portion when the cassette is inclined from a front end of the receiving surface in a dropping direction. 2. The device according to claim 1, wherein the drop preventing portion is a hole, the movement preventing portion is a cassette pressing spring that presses the tape cassette toward the receiving surface, and the catching portion is a drop preventing protrusion. Cassette loading device.