JPH05266556A - Tape recorder - Google Patents

Abstract

PURPOSE:To improve a vibration resistance and to ensure the operation by providing a shutter performing the opening/closing operations for a front side opening part to insert a magnetic head, etc., while sliding it in the direction of tape cassette insertion. CONSTITUTION:When a shutter operating shaft 6 abuts on the end face of the shutter 3, the advancing of shutter 3 to a holder 5 is stopped and only the main body of tape cassette DCC 1 continues the advancing into the holder 5. Therefore, the shutter 3 is moved relatively to the main body of tape cassette DCC 1 and the opening part is gradually opened. During this time, the shutter operating shaft 6 abuts and slides on an inclined surface 4a on the extended line of a notched part 4 for shutter opening/closing, and the shutter operating shaft 6 is finally entered into a groove 4 for shaft locking, then the opening operation of the shutter 3 is finished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cassette that covers a front opening with a shutter when not in use and opens the shutter when in use, and another tape cassette having a thick front opening. The present invention relates to a tape recorder applicable to both, and more specifically to a tape recorder having a shutter actuation means of the tape cassette with a shutter.

[0002]

2. Description of the Related Art In recent years, audio equipment has a tendency toward digital audio. With the development of technology, a tape recorder with high fidelity by digital recording and reproduction has been developed, and R-DAT by a rotary head and S by a fixed head. -D
Two AT schemes have been proposed. Especially S-DAT
Since the fixed head has a structure similar to that of the analog tape recorder, which is widely used at present, and the structure of the head and the tape cassette, it is a system that can record and reproduce both analog and digital signals by one unit. Commercialization of tape recorders is expected.

Currently proposed tape recorders of a system capable of recording and reproducing both analog and digital signals are conventional tapes having a thick portion at a front opening for inserting a magnetic head, a pinch roller and the like. A cassette (an analog compact cassette, hereinafter abbreviated as ACC) and a front opening for inserting a magnetic head, a pinch roller, etc. are covered when not in use, and when in use, the magnetic tape is slid in the running direction or in the opposite direction to the above front Tape cassette with shutter to open the opening (digital compact cassette, hereinafter abbreviated as DCC)
Both of the tape cassettes can be loaded in the same tape recorder, and the conventional ACC can be reproduced while being compatible with a DCC with a shutter.

A conventional tape recorder will be described below with reference to the drawings. FIG. 7 is an internal plan view showing the structure of a conventional tape recorder, FIG. 8 (a) is a plan view of a main part during insertion of a DCC into the tape recorder, and FIG. 8 (b) is a front view of the main part in the same state. FIG. 9 is a plan view of the main part showing a state where the shutter of the DCC is completely opened, and FIG. 10 is a front view of the main part when ACC is applied to a conventional tape recorder.

In FIGS. 7 to 10, 1 is DCC, 2 is ACC, 3 is a shutter that covers the front opening of DCC when not in use, 4 is a notch for opening and closing the shutter of DCC 1, and 4a is for opening and closing the shutter. Sloping surface of notch 4 of 1
Reference numeral 05 is a holding member, 106 is a holder for guiding the tape cassette at the time of loading the tape cassette and holding the tape cassette at the final loading position,
Reference numeral 107 denotes a slider member that constitutes a moving unit that moves along the guide portion 108 and sends the tape cassette into the holder 106, 109 an arm member that moves the slider member 107, and 110 drives the arm member 9 to hold the tape cassette 6 in the holder 6. A motor for feeding into the inside, 111 a magnetic head, 112 a pinch roller, 113 an arm-shaped member forming shutter opening / closing means, 114 an urging member for urging the arm-shaped member 113 to rotate clockwise.
Reference numeral 115 is a guide piece that is coupled to the slider member 107 and moves simultaneously with the slider member 107, and 115a is a guide piece 1.
15 is a parallel portion on the guide piece 115 with which the tip of the arm-shaped member 113 abuts, 117 is a shutter operating shaft, 118 is a collar provided on the shutter operating shaft 117, and 119 is an arc shape on the holder 106. Notch, 12
Reference numeral 0 denotes a shaft lock groove in which the shutter operating shaft 117 pushes the shutter 3 completely in the DCC 1 and enters the final position.

Next, the operation will be described. 7 to 10, the tape cassette inserted in the holder 106 is shown attached to the slider member 107 in the spool shaft insertion hole when the tape cassette is ACC2 and in the concave portion of the main outer surface when the tape cassette is DCC1. When the slider member 107 is moved by the rotation of the arm member 109 driven by the motor 110, the unengaged protrusion is engaged,
It is sent to the innermost part of the holder 106. The arm-shaped member 113 constituting the shutter opening / closing means is initially the guide piece 1.
Although it is in contact with a parallel portion (a tip portion parallel to the moving direction) 116 of 15, in the process of feeding the tape cassette into the back of the holder 106, along with the movement of the guide piece 115 that moves simultaneously with the slider member 107, The position on the guide piece 115 with which the arm-shaped member 113 abuts is the parallel portion 11.
6 moves to the inclined portion 115a. Tape cassette is D
In the case of CC1, when the position on the guide piece 115 with which the arm-shaped member 113 abuts moves from the parallel portion 116 to the inclined portion 115a, the arm-shaped member 113 starts rotating in the clockwise direction, and this rotation causes the arm. The shutter operating shaft 117 provided on the member 113 moves along the notch 119 of the holder 106, and at the same time, the shutter operating shaft 1
The tip of 17 is a notch 4 for opening and closing the shutter of DCC1.
Get inside. When the slider member 107 further moves, the tip of the shutter operating shaft 117 moves along the inclined surface 4a of the shutter opening / closing notch 4 of the DCC1 and pushes the end surface of the shutter 3 to prevent the shutter 3 from moving. Only the main body of the DCC 1 moves, and as a result, the shutter 3 is opened parallel to the long side of the DCC 1. When the slider member 107 moves further,
While the arm-shaped member 113 further rotates clockwise,
The shutter operating shaft 117 has a notch 4 for opening and closing the shutter.
The slider member 107 moves along the inner inclined surface 4a.
When the DCC1 is completely pulled into the holder 106,
The shutter operation shaft 117 finally reaches the deepest shaft locking groove 120, and the shutter 3 is completely opened.

Next, a case where ACC2 is applied to this tape recorder will be described with reference to FIG. Unlike DCC1, ACC2 does not have a notch in the front opening, so
Even if the slider member 107 moves and the arm-shaped member 113 tries to rotate due to the movement, the arm-shaped member 1
The shutter operating shaft 117 attached to 13 is A
Since the front surface of CC2 (the surface having the opening) is contacted, the arm-shaped member 113 hardly rotates, and the shutter operation shaft 11 does not rotate until the ACC2 is completely retracted into the holder 6.
7 slides on the front surface of ACC2 to the end.

When the tape cassette is pulled out from the holder 106, the tape cassette is taken out in the reverse order of the operation process described above. Tape cassette is D
In the case of CC1, the shutter operating shaft 117 moves from the shaft locking groove 120 to the inclined surface 4a in the shutter opening / closing notch 4, and finally the shutter operating shaft 117 goes out of the shutter opening / closing notch 4. Shutter 3 closes.

[0009]

However, the shutter opening / closing device of the conventional tape recorder as described above has a large number of parts, and in particular, the arm-shaped member 113 is indirectly provided by the guide piece 115 that moves simultaneously with the slider member 107.
Since it was operating, the structure and operation became complicated,
Furthermore, since it is inferior in earthquake resistance, it has a special structure such as providing a step at the tip of the guide piece 115 or providing a flange 118 on the shutter operating shaft 117 so as to prevent contact between the contact portions. It was

If the tape cassette DCC1 is once taken out during the insertion into the holder 106 and then inserted again immediately after that, the motor 110 is activated, and the arm member 109 starts to rotate and the slider member 107 starts to move accordingly. , The contact position of the arm-shaped member 113 has already changed from the parallel portion 116 of the guide piece 115 to the inclined portion 1 of the guide piece 115.
The shutter operating shaft 117 moves to D
There is a problem that the shutter opening / closing notch 4 of CC1 may not enter.

The present invention is intended to solve the above-mentioned problems of the prior art. The shutter operating piece is directly operated by the tape cassette to reduce the number of parts, thereby simplifying the apparatus and simultaneously reducing the cost. Another object of the present invention is to provide a tape recorder having a shutter opening / closing device which has a simple structure and is always guided to a notch for opening / closing the shutter of the DCC without the shutter operating shaft malfunctioning.

[0012]

In order to achieve the above object, a tape recorder according to the present invention comprises a shutter which slides in a tape cassette insertion direction to open and close a front opening for inserting a magnetic head and the like, and a shutter for opening and closing the shutter. Is a tape recorder with a shutter provided with a notch for engaging the shutter operation shaft, and a holder for holding the tape cassette in a direction perpendicular to the insertion direction and a shutter at one end. A shutter actuating shaft for opening and closing the shutter is provided, and the other end is rotatably supported by a supporting portion, first biasing means for biasing the shutter actuating shaft outward of the holder, and one end A supporting member that supports the arm member by a supporting portion and is rotatably supported by the holder at multiple ends, and a second urging member that urges the supporting member inward of the holder. A lever-like protrusion that contacts the tape cassette inserted into the arm member to rotate the arm member around the support portion and bring the shutter operating shaft into contact with the front surface having the opening of the tape cassette. Are provided integrally.

[0013]

According to the above construction, the tape cassette DCC
When the tape cassette DCC is inserted into the holder, the leading end of the tape cassette DCC comes into contact with the lever-shaped projection,
When the arm member formed integrally with the lever-shaped projection rotates clockwise around the supporting portion, the shutter operating shaft abuts the front surface of the tape cassette DCC having the opening portion, and when the tape cassette DCC is continuously inserted, The shutter operating shaft is fitted into the notch for opening and closing the shutter, and the shutter operating shaft contacts the shutter, so that the movement of the shutter is stopped, and only the tape cassette DCC main body goes further inside the holder. As a result, the shutter moves relative to the main body of the tape cassette DCC, and the opening of the tape cassette DCC is opened.

[0014]

Embodiments of the tape recorder of the present invention will be described in detail below with reference to the drawings. 1 to 4 show the shutter operating means of the tape recorder in the embodiment of the present invention, and show the operating process of the shutter operating means in the order of the drawing numbers. In each figure, (a) is a plan view and (b) is a front view. 1 to 4, 1 is a tape cassette DCC, 3 is a shutter for opening and closing a front opening of the tape cassette DCC1, 4 is a notch for opening and closing the shutter of the DCC1, and 5 is provided with a shutter operating means and holds the tape cassette. A holder, 6 is a shutter operating shaft that is fitted in a notch for opening and closing the shutter and abuts on the shutter to open the opening, and 7 is provided with a shutter operating shaft 6 at one end and can be pivoted on a supporting member 9 by a supporting portion 8. The supported arm member, 10 is a first urging means for urging the arm member 7 counterclockwise about the support portion 8, and 11 is an urging force against the urging force of the first urging means 10. A first stopper that prevents the arm member 7 from rotating so as to be substantially straight with respect to the support member 9, 12 is a rotation axis that is the rotation center of the support member provided in the holder 5, and 13 is support A second urging member that urges the material 9 in the clockwise direction and presses the support member 9 against the second stopper 14, 15 is brought into contact with the leading portion of the tape cassette inserted in the holder 5 and the shutter 3 It is a lever-shaped protrusion that causes the opening operation.

The operation of the shutter operating means of the tape recorder of the present invention having the above construction will be described below.

First, as shown in FIG. 1, the tape cassette DCC1 is inserted into the holder 5 in the direction of arrow A. At the stage shown in FIG. 1, the tape cassette DCC1 is not yet in contact with the shutter operating means. During the transition from the state shown in FIG. 1 to the state shown in FIG.
The tape cassette DCC1 enters the holder 5 such that the tape cassette DCC1 follows the front surface (the surface having the opening) of the tape cassette DCC1. In the state shown in FIG. 2, the lever-shaped projection 15 abuts on the leading portion of the tape cassette DCC1 and resists the biasing force of the first biasing member 10 about the support portion 8 to move the arm member 7 clockwise. The arm member 7 rotates and separates from the first stopper 11. As a result, the shutter operation shaft 6 contacts the front surface of the tape cassette DCC1 and presses the front surface. As a result, the support member 9 receives a reaction force, and the rotation shaft 12
Pivoting in the counterclockwise direction against the urging force of the second urging member 13, the supporting member 9 leaves the second stopper 14,
The urging force of the second urging member 13 applies a pressing force to the tape cassette DCC1 via the arm member 7. When the tape cassette DCC1 further enters the holder 5, the shutter operating shaft 6 fits into the shutter opening / closing notch 4 of the tape cassette DCC1 and abuts on the end surface of the shutter 3, as shown in FIG. When the shutter operation shaft 6 contacts the end surface of the shutter 3, the movement of the shutter 3 with respect to the holder 5 is stopped, and the tape cassette D
Only the body of CC1 continues to enter the holder 5. Therefore, the shutter 3 moves relatively to the main body of the tape cassette DCC1 and the opening is gradually opened. During this time, the shutter operating shaft 6 abuts and slides on the slope 4a on the extension line of the shutter opening / closing notch 4 shown in FIG. 4, and the shutter operating shaft 6 finally enters the shaft locking groove 4b to open the shutter 3. To finish. This state is shown in Figure 4.
As shown in (a) and (b), the tape cassette DCC1
Has also been inserted into the holder 5.

When the tape cassette DCC1 is taken out from the holder 5, the steps of FIGS. 1 to 4 are followed in reverse, and the shutter operating means returns to the state shown in FIG.

5A and 5B show a state in which the tape cassette ACC2 is completely inserted into the holder 5. The shutter operation shaft 6 and the lever-shaped projection 15 are A
Since it rides on the front surface of CC2, the shutter operation shaft 6 and the lever-shaped projection 15 slide on the upper portion of the front surface of ACC2 and do not fit into the opening.

Next, FIGS. 6A and 6B show a second embodiment. FIG. 6A is a plan view showing a stage in which the tape cassette DCC1 is being inserted into the shutter operating means of the second embodiment, and FIG. 6B is a front view thereof.

A configuration different from that of the first embodiment will be described with reference to FIG. In the second embodiment, the support member 16 is different from the support member 9 of the first embodiment. That is, the support member 16 of the second embodiment is similar to the support member 9 of the first embodiment in relation to the arm member 7, but the support member 16 is fixed to the holder 5 by the fixing portion 18. Attached, and does not have the rotating shaft 12 as in the first embodiment. However, the support member 16 constitutes the elastic portion 17 between the fixed portion 18 and the support portion 8, is flexible with the fixed portion 18 as a fulcrum, and is flexible in the insertion direction of the holder 5 and the thickness direction of the holder 5. It has a degree of freedom in the direction perpendicular to. Therefore, instead of rotating around the rotating shaft 12 as in the first embodiment, it is possible to rotate around the fixed portion 18 as a fulcrum, and the same operation as in the first embodiment is performed. It is possible. Since the support member 16 itself has the elastic portion 17, both the shutter operation shaft 6 and the lever-shaped projection 15 are tape cassette DC.
When it comes into contact with C1 or ACC2, the tape cassette D can be used without using the second biasing member 13 of the first embodiment.
A pressing force can be applied to CC1 or ACC2, and it also has a restoring force.

As described above, according to the two embodiments of the present invention, the shutter actuating means directly comes into contact with the tape cassette to securely open the shutter 3 of the DCC 1 and insert the ACC 2 in spite of its simple structure. On the other hand, there is no hindrance.

[0022]

As is apparent from the above embodiments, according to the two embodiments of the tape recorder of the present invention, the shutter actuating means has a simple structure, and the shutter opening / closing lever operates by directly contacting the tape cassette. Therefore, it has excellent earthquake resistance and is sure to operate. Further, since there is no indirect means for operating the shutter operating means, the shutter opening / closing lever operates by directly contacting the tape cassette,
Even if you take out the tape cassette DCC once while inserting it into the holder and then insert it again immediately afterwards,
Since the operating shaft is always guided to the shutter opening / closing notch of the DCC without malfunction of the operating shaft, high reliability can be obtained.

[Brief description of drawings]

FIG. 1A is a plan view of an essential part immediately after the DCC is started to be inserted into a tape recorder of the present invention, and FIG. 1B is a front view of an essential part immediately after an insert of the DCC is started to a tape recorder of the present invention.

FIG. 2A is a plan view of a main part of an initial stage of inserting the DCC into the tape recorder of the present invention. FIG. 2B is a front view of a main part of the initial stage of inserting the DCC into the tape recorder of the present invention.

FIG. 3A is a plan view of a main part of a middle stage of inserting the DCC into the tape recorder of the present invention. FIG. 3B is a front view of a main part of the middle stage of inserting the DCC into the tape recorder of the present invention.

FIG. 4A is a plan view of a main part of the tape recorder of the present invention in which DCC has been inserted. FIG. 4B is a front view of a main part of the tape recorder of the present invention in which DCC has been inserted.

FIG. 5A is a plan view of a main part of the tape recorder of the present invention in which ACC has been inserted. FIG. 5B is a front view of a main part of the tape recorder of the present invention in which ACC has been inserted.

FIG. 6A is a main part plan view showing the configuration of another embodiment of the tape recorder of the present invention, and FIG. 6B is a front view of the main part showing the configuration of another embodiment of the tape recorder of the present invention.

FIG. 7 is an internal plan view of a conventional tape recorder.

FIG. 8 (a) is a plan view of the main part of the conventional precoder during the insertion of the DCC. (B) is a front view of the main part of the conventional precoder during the insertion of the DCC.

FIG. 9 is a front view of a main portion of the conventional precoder in which DCC is completely inserted.

FIG. 10 is a front view of a main part in the middle of inserting an ACC into a conventional precoder.

[Explanation of symbols]

 1 DCC (Tape Cassette) 3 Shutter 4 Notch 5 Holder 6 Shutter Operating Shaft 7 Arm Member 8 Support 9 Support Member 10 First Biasing Member 13 Second Biasing Member 15 Lever-like Protrusion

Claims (2)

[Claims] 1. A tape cassette with a shutter provided with a shutter that slides in a tape cassette insertion direction to open and close a front opening for inserting a magnetic head or the like, and a notch with which a shutter operating shaft for opening and closing the shutter is engaged. A tape recorder configured to be mounted with a holder that constrains the tape cassette in a direction perpendicular to the insertion direction, and a shutter operation shaft that opens and closes the shutter at one end, and the other end is centered around a support portion. An rotatably supported arm member, a first urging means for urging the shutter actuating shaft to the outside of the holder, and at least a supporting portion for supporting the arm member in the shutter slide direction. A support member configured to move in a substantially vertical direction and not move in a shutter slide direction,
Second biasing means for biasing the support member inward of the holder, and the arm member is brought into contact with the inserted tape cassette to rotate the arm member about the support portion. A tape recorder comprising a lever-shaped projection for bringing a shutter operation shaft into contact with a front surface having an opening of the tape cassette. 2. The support member has a fixed end, one end of which is fixed to the holder, and a lever-shaped member extending between the fixed end and a support portion supporting the arm member in a direction substantially parallel to the tape cassette insertion direction. It is configured by an elastic portion having a degree of freedom in a direction perpendicular to the insertion direction of the holder and the thickness direction of the holder with the fixed end as a fulcrum, and the second biasing member is configured by the support member itself. The tape recorder according to claim 1, wherein the tape recorder is a tape recorder.