JPS5923025B2 - Tape recorder with cassette reversing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape recorder having a cassette reversing device that can be used with a tape cassette stored in a holder.

In the case of a cassette-type tape recorder, to reverse the loaded tape cassette, it is necessary to directly pick up both sides of the cassette with your fingers, or operate the eject button to raise the cassette, then pinch it and reverse it. I have to.

In addition, even in the case of a guncarboget type in which the cassette is housed in a holder, the cassette is removed after the holder is raised once. These methods also involve picking the cassette with your fingers and flipping it over.

However, it is not only troublesome to pick up and operate the cassette every time the cassette is turned over, but there is also a risk of accidentally damaging the tape.

This invention was made in view of the above circumstances, and provides a cassette reversing device that can automatically reverse tape cassettes, stably set a holder in a cassette chamber, and also allow easy loading and unloading of cassettes into the holder. The purpose of the present invention is to provide a tape recorder having the following features.

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

In the figure, reference numeral 1 denotes a tape recorder main body, and the tape recorder main body 1 has a cassette chamber 2, a speaker 3, etc. disposed on its upper surface, and is also provided with a built-in microphone, volume control buttons, etc. (not shown). The cassette chamber 2 is provided with a pair of tape drive shafts 4, 5, cassette guide pins 6, □, and a capstan shaft 8, and is also provided with an eject lever 10 interlocked with an eject button 9.

On the other hand, the cassette holder 1 can be inserted and removed freely into the cassette chamber 2.
1 is provided.

This holder 11 has a large notch in its upper part that corresponds to at least the tape drive shafts 4 and 5 of the cassette chamber 2 to form a cassette receiving part along the lower periphery, and the cassette tape 12 is stored in this receiving part. I have to. The holder 11 is supported by a rotary bearing 13 so as to be rotatable in the direction of arrow A, and can be raised and lowered within a range of approximately 900 degrees in the direction of arrow B. The reversing mechanism of the holder 11 inserts the rotating shaft 14 of the holder 11 into a rotating bearing 13 to enable rotation in the direction of the arrow A mentioned above. Further, the rotary bearing 13 has a boss 13a at its end portion, and this boss 13a is pivoted by a pin 15 in the direction of the arrow B, that is, the holder 11
It can be freely raised and lowered within a range of about 90 degrees from the upright state to the state where it is set in the force setting chamber 2. Rotating bearing 13
A spring hooking boss 13b is provided at the cassette case body 1, and a spring 16 is stretched between the boss 13b 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 stands up at a predetermined angle, that is, when the dead point of the spring 16 is exceeded. I have to. 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 by rotating the ratchet wheel 19 through a predetermined angle, the pinion 17 is rotated 1800 times and the holder 11 is driven 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 2 is attached to the other end of this lever 20.
2 is provided so that it is always biased to the illustrated state. A claw 23 is attached to the middle part of the lever 20.

This pawl 23 is engaged with the pawl wheel 19, and the pawl 23 is engaged with the pawl wheel 19.
0 moves in a direction against the biasing force of the spring 22, the ratchet wheel 19 is rotated by a predetermined angle. In this case, the pawl 23 is always in contact with the pin 25 due to the biasing force of the spring 24 in the clockwise direction shown in the figure, so that driving force is transmitted to the ratchet wheel 19 only when the lever 20 moves in a direction against the biasing force of the spring 22. I have to. 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. On the other hand, a lid body 3 that matches the holder 11 that is inverted in the force setting chamber 2 to close the force setting chamber 2.
0 is one that is pushed up and released when the holder 11 is raised, and is formed to match the shape of the holder 11.

That is, the lid body 30 is formed in a convex shape so as to fill the concave portion of the holder 11, and the protruding portion constitutes a window portion 31 made of a transparent material such as plastic or glass. As shown in FIG. 3, the lid 30 and the holder 11 are configured such that the engaging edge 30a of the lid 30 is engaged with a stepped portion 11a provided on the engaging edge of the holder 11 to improve airtightness. Although not shown, a loose click mechanism is provided between the lid 30 and the force setting chamber 2 to prevent the lid from opening due to vibration or the like. Therefore, in such a force set reversing device, the tape cassette 12 is attached to the force set holder.
If it becomes necessary to turn over the tape cassette opening 2 after it has been stored and set in the force setting chamber 2, press the eject button 9.
When pressed, the ejector lever 10 rotates and the lid body 30
After pushing up, the holder 11 is raised to a predetermined angle.

Then, the lid body 30 rotates approximately 180 degrees as shown in FIG. 2, and the holder 11 stands up. 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 is brought into contact with the eject button 9. In this case, as shown in FIG.
2 are provided. This shaft 32 is supported by a bearing via a spring 33, and is movable by pushing the eject button 9 against the biasing force of the spring 33. Further, an ejector lever 10 is provided opposite the tip of the shaft 32. The lever 10 has a bent portion 10a at its side end facing the shaft 32, and the bent portion 10a is rotatable around the pivot 34, so that when the shaft 32 moves, the bent portion 10a When pressed, the holder 11 is rotated to forcefully raise the holder 11 to a predetermined angle, that is, to the point where the biasing force of the spring 16 is applied. Further, the bent portion 10a of the lever 10 serves as a stopper against which the operating piece 28 comes into contact. As a result, when the stopper of the operating piece 28 is released by rotating the lever 10, the operating piece 28 comes into contact with the eject button 9 as shown by the broken line in FIG. Therefore, when the eject button 9 is pressed again in this state, the operating piece 28 is pushed, the lever 26 is rotated clockwise, and the lever 20 is moved by the spring 22.
move directly against the biasing force of

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.
80 and rotate. Thereafter, when the holder 11 is set in the cassette chamber 2 against the biasing force of the spring 16, the reversal of the tape cassette 12 is completed. By closing the lid 30 after the cassette 12 has been inverted, the cassette chamber 2 is completely sealed by the holder 11 and the lid 30. With this configuration, the tape cassette stored in the cassette holder can be automatically reversed without touching the tape cassette, which requires less operation than the conventional method of picking up the tape cassette with your fingers and reversing it. This is easy to do, and it also prevents the tape from being accidentally damaged, thereby eliminating the inconvenience of making the tape cassette unusable.

In addition, the cassette holder has a large notch in the upper part of at least the part corresponding to the tape drive shaft of the cassette chamber to form a cassette receiving part along the lower periphery, and this receiving part holds the cassette. No matter which side of the holder faces the cassette chamber, the holder can be stably set in the cassette chamber without being disturbed by the tape drive shaft of the cassette chamber. This makes it possible to turn the cassette inside out while it is stored in the holder, and in cases where the cassette is loaded into the cassette chamber by raising and lowering it, the holder directly corresponds to the tape, drive shaft, capstan shaft, etc. in the cassette chamber. If holes are formed individually, each hole often does not align accurately with the tape drive shaft or capstan shaft due to mounting errors or wobbling of the holder support shaft, and in this state it is difficult to forcefully insert the holder into the cassette chamber. This is extremely effective because if you try to do so, there is a risk of damaging the holder itself or bending the various shafts on the cassette chamber side. Further, even when changing the cassette with the holder in an upright position, the cassette is largely exposed due to the notch in the upper part of the holder, so there is an advantage that the cassette can be easily taken out and put away. Furthermore, by cutting out the part of the upper part of the holder that corresponds to the tape drive shaft, the label part of the cassette will also be exposed, making it easy to read the recorded contents of the cassette while the cassette is held in the holder when the holder is upright. This also saves you the trouble of taking out the cassette and checking the recorded contents when reversing the cassette. Furthermore, since this device can be opened by simply pushing up the lid by raising the holder, the configuration for opening and closing the lid is simple, which is especially convenient for ultra-small tape recorders where space is limited. . Furthermore, since the cassette chamber can be sealed tightly between the holder and the lid, there is no risk of dirt or dust getting in, and the lid can have an excellent structure. As described above, according to the present invention, the tape cassette can be reversed without touching the tape cassette, the holder can be stably set in the cassette chamber, and the cassette can be easily inserted and removed from the holder. A tape recorder having a reversing device can be provided.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a perspective view with the lid open showing the cassette holder of the same example in an upright state, Fig. 3 is a sectional view showing the main parts of the same embodiment, 4 and 5 are schematic configuration diagrams showing the holder reversal drive section of the same embodiment. 1...Tape recorder body, 2...Cassette chamber, 3...Speaker, 4, 5...
・Tape 1 drive shaft, 6, 7...Guide pin, 8
... Capstan shaft, 9 ... Eject button, 10 ... Eject lever, 11 ...
...Cassette holder, 12...Tape cassette, 13...Rotating bearing, 14...Shaft, 15...Hiso, 16, 22, 24, 29...
...Spring, 17...Pinion, 18...
... Gear, 19 ... Claw wheel, 20, 26 ...
...Lever, 23...Claw, 28...
Operation piece, 30...lid body, 31...window section.

Claims (1)

[Claims] 1. In a tape recorder in which a cassette holder for storing a tape cassette is provided so as to be freely raised and lowered from a cassette chamber having a tape drive shaft and rotatable in an upright state, the holder has at least a portion of the upper portion corresponding to the tape drive shaft. A cassette receiving part is formed along the lower periphery of the notch, and a lid body for closing the notch part of the holder is provided in the cassette chamber, and the lid body is pushed up and opened when the holder is raised. A tape recorder having a cassette reversing device.