JPS5927019B2 - Cassette reversing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cassette reversing device for reversing a tape cassette set in a cassette chamber of a tape recorder or the like.

If a tape cassette set in the cassette chamber of a tape recorder etc. needs to be reversed during playback or recording, operate the eject button to lift the cassette out of the cassette chamber, then pinch it with your fingers and reverse it. Then, I set the cassette in the cassette chamber again and continue playing or recording.

Also, in the case of the so-called Gun Car Boget type, where the tape cassette is placed in a cassette holder and set in the cassette chamber, the holder is raised once, the cassette is picked out from the holder, it is turned over, the cassette is placed in the holder again, and the cassette is set in the cassette chamber. That's what I do. In other words, all of the above methods involve pinching the cassette with your fingers and inverting it. However, having to pick up the cassette with your fingers every time you flip it over like this is not only cumbersome to operate, but can also inadvertently damage the tape, and in the worst case scenario, it can make the tape cassette itself unusable. There was a fear that it would happen. On the other hand, in some conventional car stereos and the like, a result equivalent to reversing the cassette is obtained by switching the direction of tape feeding and the drive position of the head without reversing the cassette itself. However, such devices require an expensive multi-head and a complicated mechanism for reversing the feeding of the tape, and in some cases require solenoid valves, etc., making them expensive and especially in recent years. It cannot be used in devices where space is limited, such as the ultra-small tape recorders that are attracting attention. This invention was made in view of the above circumstances, and allows the cassette to be reversed without touching the tape cassette. Moreover, the structure is simple and thin, and it can be used especially in places where space is limited. The purpose is to provide a cassette reversing device suitable for use.

An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1a and 1b show an example in which the present invention is applied to a tape recorder. In the figure, 1 is a tape recorder main body, and this tape recorder main body 1 is provided with a cassette chamber 2, a speaker hole 3, and the like. ) The force setting chamber 2 is provided with a pair of reel drive shafts 4, 5, force setting guide pins 6, 7, and a cab stun shaft 8, as well as an eject lever 10 interlocked with an eject button 9.

On the other hand, the force set holder 11 is removably inserted into the force set chamber 2.
has been established.

This holder 11 is for holding a tape cassette 12. The holder 11 is supported by a rotary bearing 13 and is rotatable in the direction of the arrow A in the figure, and can be raised and lowered within a range of about 9σ in the direction of the arrow B in the figure. In this case, the reversing mechanism of the holder 11 is specifically shown in FIG. In this case, the rotary bearing 13 supporting the holder 11 is cylindrical as shown in FIG.
Allows for directional rotation. Further, the rotary bearing 13 has a boss 13a at its end portion, and this boss 13a is pivotally supported by a pin 15 in the direction of arrow B, that is, approximately 90 degrees from the state in which the holder 11 is erected to the state in which it is set in the force setting chamber 2.
(f) It can be raised and lowered freely within a certain range. A spring hanging boss 13b is provided near the boss 13a of the rotary bearing 13, and this boss 13
A spring 16 is stretched between the cassette case body 1 and the inner wall surface of the cassette case body 1. This spring 16 applies a biasing force in the upright direction to the rotary bearing 13, and this biasing force acts suddenly from the time when the rotary bearing 13 rises to a predetermined angle, that is, beyond the dead point of the spring 16. That's what I do. A pinion 17 is attached to the tip of the shaft 14 of the force set holder 11.

Further, a gear 18 is provided corresponding to the pinion 17, which meshes with the holder 11 when it is erected. This gear 18 is coaxially provided with a ratchet wheel 19, and rotation of the ratchet wheel 19 through a predetermined angle rotates the pinion 17 by 180' and drives the holder 11 in reverse. A lever 20 is provided adjacent to the ratchet wheel 19.

This lever 20 has an axially elongated hole 20a formed at one end thereof, and a pin 21 is inserted through this elongated hole 20a so as to be freely movable in the axial direction. Also, a spring 22 is attached to the other end of this lever 20.
is provided so that the state is always biased toward the state shown in the figure. A claw 23 is attached to the middle part of the lever 20.

As shown in FIG. 4, this pawl 23 engages with the ratchet wheel 19, so that when the lever 20 moves in a direction against the biasing force of the spring 22, the ratchet wheel 19 is rotated by a predetermined angle. ing. In this case, the claw 23 is constantly brought into contact with the pin 25 by the biasing force of the spring 24 in the clockwise direction in the drawing, and the lever 20
Driving force is transmitted to the ratchet wheel 19 only during movement in a direction against the biasing force of the spring 22. An L-shaped lever 26 is attached to the other end of the lever 20.

The bent portion of this lever 26 is pivotally supported by a pin 27, making it rotatable. Further, an operating piece 28 is attached to this lever 26. This operating piece 28 is always biased clockwise by a spring 29. In this case, the members for imparting rotation (180) to the force set holder 11 in the upright state, that is, the ratchet wheel 19, levers 20, 26, operating piece 28, etc., are arranged along the recumbent direction of the force set holder 11. It is arranged. On the other hand, the eject button 9 is provided with an operating shaft 30.

As shown in FIG. 4, this shaft 30 is supported by a bearing via a spring 31, and is movable by pushing the eject button 9 against the biasing force of the spring 31. Further, an ejector lever 10 is provided opposite the tip of the shaft 30. This lever 10 has a bent portion 10a at the side end opposite to the shaft 30.
The bent portion 10a is rotatable around a pin 32, and when the bent portion 10a is pressed by the movement of the shaft 30, it rotates and holds the holder 11 at a predetermined angle, that is, the angle of the spring 16. It is forcibly raised to the point where a biasing force is applied. In this case, the lever 10 has a bent portion 10a as a stopper against which the operating piece 28 comes into contact, as shown in FIG. When the lever 10 is rotated to release the stopper of the operating piece 28, the operating piece 28 comes into contact with the eject button 9 as shown by the broken line in FIG. In this case, the eject operation member, that is, the eject button 9, which applies the lifting force to the force set holder 11, is used.
and the ejector lever 10 etc. are attached to the force set holder 11 at 180° in the horizontal direction of the force set holder 11.
It is disposed on substantially the same plane as the member that provides rotation of the. Therefore, in such a force set reversing device, when it becomes necessary to reverse the tape cassette 12 from the state where the tape cassette 12 is stored in the force set holder and set in the force set chamber 2, when the eject button 9 is pressed. The ejector lever 10 rotates to raise the holder 11 to a predetermined angle.

Then, from this point on, the biasing force of the spring 16 acts, causing the rotary bearing 13 to rotate counterclockwise at once, raising the holder 11 to an upright state. Further, when the eject lever 10 is rotated by pressing the eject button 9, the stopper at the bent portion 10a of the lever 10 is released, and the tip of the operating piece 28 comes into contact with the eject button 9 as shown by the broken line in FIG. be done.
Therefore, when the eject button 9 is pressed again in this state, the operating piece 28 is pushed, the lever 26 rotates clockwise, and the lever 20 moves linearly against the biasing force of the spring 22.

As a result, the claw 23 rotates the ratchet wheel 19 by a predetermined angle, rotates the pinion 17 via the gear 18, and rotates the holder 11 by a predetermined angle.
8 moves. After this, the holder 11 is attached to the spring 16.
When the tape cassette 12 is set in the force setting chamber 2 against the biasing force of the tape cassette 12, the reversal of the tape cassette 12 is completed, and recording and playback can then be performed on the opposite side. Therefore, with such a configuration, the force set can be automatically reversed without touching the tape cassette housed in the force set holder, so it is no longer necessary to pick up the tape cassette with your fingers and reverse it, as in the conventional case. It is easier to operate than the conventional tape cassette, and it also prevents the tape from being accidentally damaged, thereby eliminating the inconvenience of making the tape cassette unusable.

Further, an eject operating member that applies a force for raising the holder and a member that rotates the force set holder in response to re-operation of the eject operating member after the holder is raised are arranged on substantially the same plane in the recumbent direction of the force set holder. As a result, the structure can be made thinner, thereby making it possible to obtain an optimal structure for ultra-small tape recorders and the like where internal space is limited. It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented with appropriate modifications within the scope without changing the gist.

For example, in the embodiment described above, the force set holder 11 is provided with the role of a force set cover, but a force set cover 33 may be provided separately as shown in FIGS. 5A and 5B. In this case, the force set holder 11 may only hold the lower portion of the tape cassette as shown. Of course, in this case, the holder 11 is erected in conjunction with the ejector lever 10, and at the same time, the force set lid 30 is also opened. In addition, in the above explanation, holder 1 is consistently operated by operating eject button 9.
Although the holder 11 is rotated, the holder 11 may be rotated by using other operation buttons. Of course, the operation button may enable the holder to be raised and rotated by the first and second operations. As described above, according to the present invention, the force setting can be reversed without touching the tape cassette, and the structure is simple and thin, making it particularly suitable for use in places where space is limited. A suitable force set reversal device can be provided.

[Brief explanation of drawings]

1A and 1B show an example of a force setting tape recorder to which the present invention is applied; FIG. 1A is a perspective view showing the force setting holder set in the force setting chamber; FIG. The figure is a perspective view showing one embodiment of the present invention, FIG. 3 is a sectional view showing the rotation bearing portion of the same embodiment, and FIG.
The figure is a schematic configuration diagram showing the holder reversal drive unit of the same embodiment,
5A and 5B show another example of a force setting tape recorder to which the present invention is applied; a is a perspective view showing a state in which the force setting holder is set in the force setting chamber; and b is a perspective view showing a state in which the force setting holder is erected. . 1... Tape recorder main body, 2... Power setting chamber, 3... Speaker hole, 4, 5...
...Reel drive shaft, 6,7...Guide pin,
8...-Capstan shaft, 9...Eject button, 10...゜Eject lever 11-...
... Force set holder, 12 ... Tape cassette, 13 ... Rotating bearing, 14 ... Shaft,
15...Pin, 16, 22, 24, 29, 30
・-・1・・Spring, 17・・・・Pinion, 18・
... Gear, 19 ... Claw wheel, 20, 26.
...Lever, 21, 25, 27, 32...
-pin, 23-...claw, 28...operation piece,
30... Operation axis.

Claims (1)

[Claims] 1. A cassette holder that accommodates a tape cassette, a tiltable bearing that rotatably supports the cassette holder, an eject operation member that applies a lifting force to the cassette holder, and an eject operation after the cassette holder is erected. and a member that rotates the cassette holder in response to re-operation of the member, and the eject operation member and the member that rotates the cassette holder are arranged on substantially the same plane in the lying direction of the cassette holder. Cassette reversing device.