JPS62110662A - Cassette shifting device - Google Patents

Abstract

PURPOSE:To improve the certainty of loading and discharging with a simple constitution by releasing a sliding cover by the insertion of a tape cassette and closing surely by pushing action at the time of discharging and making decelerating operation in loading and discharging. CONSTITUTION:When a tape cassette is inserted into a cassette holder 14, the front edge of a sliding cover comes into contact with a projection 17 for releasing sliding cover, and the sliding cover is kept in perfectly released state. A pinion 24 engages with an L-shaped rack 27, and when it comes to the corner part of L-shape, a roller 40 is guided to a groove hole 37, and the cassette holder starts falling together with the pinion 24. A turning cover is abutted with a turning cover releasing pin 33 during this shifting and pushed up, and released automatically. After using, the tape cassette can be taken out only by pushing up the cassette holder. At this time, the side of locked part of the sliding cover collides with a projection 19 for closing slide cover and its moving is checked, and discharged in the state of perfect closing. Grease in a grease cup 26 makes viscous coupling with a pinion shaft seat 25 and reduces the speed of operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette transfer device suitable for a digital audio cassette recorder.Background ArtIn recent years, a digital audio recorder using a tape cassette has been proposed. A new tape cassette has been proposed.0 The newly proposed tape cassette has a rotating lid that opens and closes the front opening to prevent fingerprints, dirt, dust, etc. from adhering to the magnetic tape, and a sliding lid that opens and closes the bottom opening. Because of the moving lid, a new cassette transfer device is required.

Problems to be Solved by the Invention The present invention attempts to realize a cassette transfer device using the proposed new tape cassette, which has a simple structure, can provide reliable operation, and is suitable for front loading and the like.

In view of the above problems, the present invention opens the sliding lid by inserting the tape cassette, securely closes it by pushing out the tape cassette at the time of ejection, and decelerates the lid to give a sense of weight to the mounting and ejecting operations. The present invention provides a cassette transfer device with a cassette transfer system.

Means for Solving the Problems In order to solve the above problems, the cassette transfer device of the present invention includes a cassette holder that allows the tape cassette to be inserted and removed in the direction of its main plane, and a cassette holder that allows the tape cassette to be inserted and removed. a cassette transport means moved in a direction substantially perpendicular to the principal plane direction from a first position where the performance is enabled and energized toward a second position where the performance is enabled; and the cassette transport means is moved to the first position. A locking means for locking and holding, a cassette insertion detection means for detecting completion of insertion of the tape cassette and releasing the lock by the locking means upon detection of the cassette insertion, and a cassette insertion detection means attached in the tape cassette ejection direction. The cassette holder has a configuration consisting of an urging means for applying force, a pinion with a damper supported by the cassette transfer means, an L-shaped rack provided on the locking means and meshing with the pinion with the damper, and the cassette holder further has a sliding lid on the bottom surface. The device is equipped with a lock release projection, a sliding lid opening abutting portion, a sliding lid closing projection, and a cassette urging means on the top surface.

Effect: With the above-described configuration, the present invention can reliably open and close the sliding lid by inserting and removing the tape cassette, and also allows for insertion and removal from the first position to the second position, or from the second position to the first position. Since the movement to the position is decelerated, it is possible to insert and remove the cassette with a feeling of weight.

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

FIG. 8 is a top perspective view showing an example of the proposed tape cassette, in which 1 is a cassette body, and 2 is a rotating lid which is opened and closed by rotating the front opening of the cassette body 1. FIG. Reference numeral 3 denotes a sliding lid that slides to open and close the opening on the lower surface of the cassette body 1, and is normally biased by a spring in the closing direction, but is locked in two open and closed positions. Reference numeral 4 denotes a notch provided at the tip of the rotating lid 2, through which the front edge of the sliding lid 3 can be seen deep inside. Reference numeral 6 designates a notch similarly provided in the rotating lid 2, which communicates with a locking release projection guide groove through which the sliding lid locking release projection passes.

FIG. 9 is a bottom perspective view thereof. In FIG. 9, 6 is a lock release protrusion guide groove, 7 and 8 are lock holes provided in the sliding lid 3,
Reference numeral 9 is a locking claw that attaches the cassette body 1 to the bottom surface of the cassette body 1.
It is provided at the tip of an elastic arm that is integrally formed with the body, and is always biased outward. Reference numeral 10 denotes an engaged portion provided on the lower surface of the sliding lid 3 of the proposed tape cassette, and is made of a recess or a through hole. Reference numeral 11 denotes one side forming the recess, which is perpendicular to the sliding direction of the sliding lid 3.

FIG. 10 is a side view thereof, showing a state in which the sliding lid 32 and the rotating lid 2 are opened. As can be seen from the figure, the rotating lid 2 can only be opened after the sliding lid 3 is opened.

The sliding lid of a tape cassette constructed in this way is biased by a spring to return to the closing direction, but when inserted into a cassette holder etc., the sliding lid is subjected to vertical or horizontal forces. If this is the case, the frictional force between the cassette body and the sliding lid will not produce a sufficiently large return force, and there is a fear that it will not be possible to reliably close the cassette simply by releasing the lock at the open position.

FIG. 1 is a top view of a cassette transfer device in a first embodiment of the present invention. In the figure, 12 is a frame, 13 is an attachment part of the frame 12 to the chassis, 14 is a cassette holder, 15 is a holder upper plate, 16 is a holder lower plate,
Numeral 17 is a sliding lid opening projection formed by bending and raising a portion of the holder lower plate 16, and 18 is a sliding lid lock release projection which projects from the holder lower plate 16 in a bead shape. Reference numeral 19 denotes a sliding lid closing projection, which is a mountain-shaped projection rising from the holder lower plate 16 on the front side with a gentle slope. A cassette pressing spring 20 urges the inserted tape cassette toward the holder lower plate 16. Reference numeral 21 denotes a guide projection provided on the side surface of the cassette holder, which extends in the vertical direction. 22 is frame 12
A guide groove provided in the cassette holder 14 fits into the guide protrusion 21 and guides the vertical movement of the cassette holder 14. 23 is a coil spring that always urges the cassette holder 14 downward. 24 is a pinion, 25 is a pinion axial pressure, and 26 is a grease cup that is formed integrally with the pinion 24 via a sleeve. Grease of a suitable viscosity is present on the inner surface of the grease cup 26, and is viscously coupled with the pinion dust 26 through this, thereby damping the deceleration of the operation. 27 is the horizontal part of the L-shaped rack, 28 is the control member, 29 is the spring hanging part, 30
31 is a return spring for the control member 28, and 31 is a cassette insertion detection portion, which is formed by bending the tip of the control member 28 inward.

32 is a spring hook formed by bending the tip of the control member 28 outward, and one end of the return spring 3o is hooked thereon. 33 is a rotating lid opening pin, which is planted in the soil of Shear 7. 34
is the chassis.

Figure 2 is a side view of the rack, 35 is the vertical part of the L-shaped rack;
Reference numeral 36 is an L hand hole provided in the control member 28, into which the pinion support shaft is fitted and guided. Reference numeral 37 denotes a relief hole provided in the frame, which is a wide slot so that the pinion support shaft can pass through. Reference numeral 38 denotes a guide shaft of the control member 28, which fits into and guides a slot extending from the L-shaped slot 36.

FIG. 3 is a top view showing the state in which the tape cassette 1 has been inserted, and FIG. 4 is a side view showing the cassette holder 14 brought to the performance position from the state in which the tape cassette 1 has been inserted.

FIG. 5 is a partial cross-sectional view showing the details of the pinion support part, 3
9 is a pinion shaft, 40 is a roller provided on a sleeve connecting pinion 24 and grease cup 26, and 41 is grease placed between grease cup 26 and pinion fine dust 25. FIG. 6 is a side view of the control member 28;
The figure is a partial side view showing a spring section that biases the cassette holder.

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

First, when the tape cassette 1 is inserted into the cassette holder 14 in the state shown in FIGS. 1 and 2, the lock release protrusion 18
The front side of the sliding lid 3 comes into contact with the locking claw 9 to release the locking, and immediately after that, the front edge of the sliding lid 3 comes into contact with the sliding lid opening protrusion 1,
be stopped in that position. On the other hand, the cassette body 1 is inserted further and the sliding lid 3 is completely opened, and while the locking pawl 9 and the locking hole 7 are in operation, the cassette body 1 moves the control member 28 to its tip 31 by the force of the spring 3o. It is pushed against the pressure, resulting in the state shown in Figure 3. When pushing this far, the pinion 24 is in the L position.
It engages with the horizontal part 27 of the rack and rotates around the corner of the L-shape. When it comes to the corner of this L-shape, the pinion 24
The engagement with the shaped rack is temporarily disengaged, and the roller 40 is inserted into the slot 3.
6, and by the force of the spring 38, the cassette holder 1
4 begins to fall together with pinion 24. That is, the control member 28 releases the cassette holder 14 from the first position where the tape cassette is inserted and removed, and moves it in a direction perpendicular to the main plane direction of the tape cassette to the second position where recording and playback is possible. The object is then decelerated and moves to the state shown in FIG.

During this movement, the rotating lid 2 comes into contact with the rotating lid opening pin 33, is pushed up, and is automatically opened.

To remove the tape cassette after use, use cassette holder 1.
It is only necessary to push up 4 using a pushing up means (not shown).

That is, by pushing up the cassette holder 14, the pinion 2
4 rises from the vertical lower end of the L-shaped groove 36 to the horizontal position, the control member 28 returns along the guide shaft 38 by the force of the return spring 30, but at this time the cassette body 1
It is pushed back by the tip bent portion 31 and begins to be discharged. During this ejection, the front side of the lock release protrusion 18 first comes into contact with the lock claw 9, the sliding lid 3 is released from the open position, and the cassette main body 1 is decelerated and begins to be ejected. The movable lid 3 is prevented from moving by the sliding lid closing protrusion 19 colliding with one side 11 of the engaged portion 1Q, and ejection is completed in a completely closed state. So just take this out.

As described above, according to this embodiment, it is possible to load and eject a tape cassette that has been decelerated without using a power source such as a motor, and the ejected tape cassette is securely in a state where the sliding lid is closed. It is something that exists.

In addition, by missing a few teeth at the corners of the L-shaped rack, it is possible to switch from horizontal movement to vertical movement, or vice versa, to quickly switch from vertical movement to horizontal movement without a damper effect. Therefore, the nine points at which the operation is to be switched are clear, and reliable operation can be expected.

Furthermore, although in the embodiment the cassette holder is moved in parallel, it may be moved in a direction approximately perpendicular to the main plane of the tape cassette, and can also be carried out with a cassette holder supported on a rotating arm. It is something.

Effects of the Invention As described above, the present invention includes a cassette holder into which a tape cassette can be inserted and removed in the direction of its main plane, and a cassette holder which can be inserted into and removed from the tape cassette from a first position that allows the tape cassette to be inserted into and removed from the cassette holder. cassette transport means energized toward a second position for vertical movement and performance; locking means for locking and holding the cassette transport means in the first position; and insertion of a tape cassette. cassette insertion detection means for detecting the end and releasing the locking by the locking means upon detection of the cassette insertion;
Composed of a biasing device that biases the cassette insertion detection device in the tape cassette ejection direction, a damper-equipped pinion that is pivotally supported by the cassette transfer device, and an L-shaped rack that is provided on the locking device and meshes with the damper-equipped pinion. Furthermore, the cassette holder is provided with a sliding lid locking release projection, a sliding lid opening contact portion, a sliding lid closing projection on the bottom surface, and a cassette biasing means on the top surface. By slowing down the mounting and ejecting operations, an excellent operational feel can be obtained, and the sliding lid of the ejected tape cassette can be securely closed.

[Brief explanation of drawings]

Fig. 1 is a top view of the cassette transfer device according to the embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a top view showing the cassette insertion completed state, and Fig. 4 is the cassette transfer device brought to the playing position. 5 is a partial sectional view showing details of the pinion part, FIG. 6 is a side view of the control member, and FIG. 7 is a part showing details of the part where the cassette boulder is biased downward by the spring. 8 is a top perspective view of the proposed tape cassette, FIG. 9 is a bottom perspective view thereof, and FIG. 10 is a side view thereof. 1...Cassette body, 2...Rotating lid,
3...Sliding lid, 6...Latch release protrusion guide groove, A, 8...Latching hole, 9...Latching claw, 14 ...Cassette holder, 24...
・Pinion, 28...Control member, 30・Old...
Return spring, 41...Grease. Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 2q 12 29 Figure 5
Figure 6 Figure 7

Claims (6)

[Claims] (1) A cassette holder that allows the tape cassette to be inserted and removed in the direction of its main plane, and a cassette holder that is moved from the first position that allows the tape cassette to be inserted and removed in a direction approximately perpendicular to the direction of the main plane to play. a cassette transfer means energized toward a second position where the tape cassette is allowed to move; a locking means that locks and holds the cassette transfer means in the first position; cassette insertion detection means for releasing the locking by the locking means; urging means for urging the cassette insertion detection means in the tape cassette discharge direction; a pinion with a damper pivotally supported by the cassette transfer means; A cassette transfer device characterized in that the means is provided with a pinion with a damper and an engaging L-shaped rack. (2) The cassette transfer device according to claim 1, characterized in that a pin or roller provided coaxially with the damper-equipped pinion is engaged with an L-shaped slit provided in the locking means. (3) The cassette transfer device according to claim 1, wherein the L-shaped rack has a tooth profile missing at a bent corner. (4) The cassette holder is provided with a sliding lid lock release protrusion, a sliding lid opening contact portion, and a cassette urging means for urging the cassette downward on the inside top surface of the cassette holder. A cassette transfer device according to claim 1, characterized in that: (5) The cassette transfer device according to claim 1, wherein the ejection stroke of the tape cassette is approximately equal to or greater than the opening/closing stroke of the sliding lid. (6) Equipped with a tape cassette discharge means for automatically discharging the tape cassette in the direction of its main plane, a sliding lid closing protrusion provided on the lower surface of the cassette holder, and a cassette biasing means provided on the inner upper surface of the cassette holder. A cassette transfer device according to claim 1, characterized in that: