JPH05109165A - Tape recorder - Google Patents

Abstract

(57) [Summary] [Purpose] To operate the shutter operation means smoothly,
Provided is a tape recorder applicable to tape cassettes having different shapes. [Arrangement] An arm member 8b which constitutes a shutter actuating means 8 for opening and closing the shutter 1d by mounting a tape cassette 1 with a shutter 1d which covers the front opening 1a, 1b, 1c when not in use and opens when in use. An abutting portion 8d capable of abutting on the front surface portion of the second tape cassette 5 having a thick front opening portion, and a shutter operating shaft 8c lower than the thickness step amount 5h of the second tape cassette are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape recorder applicable to a tape cassette which covers a front opening with a shutter when not in use and opens the shutter when in use, and the tape cassette and at least a magnetic head thereof. , A tape recorder applicable to both of other tape cassettes having a thick portion having a front opening for inserting a pinch roller or the like.

[0002]

2. Description of the Related Art Currently proposed tape recorders of the type capable of recording / reproducing both analog and digital signals are conventionally constructed such that a portion having a front opening for inserting a magnetic head, a pinch roller and the like is thick. The tape cassette (analog compact cassette = ACC) and the front opening for inserting the magnetic head and pinch roller are covered when not in use, and when used, slide in the running direction of the magnetic tape or in the opposite direction. Both the tape cassette with shutter (digital compact cassette = DCC hereafter) for opening and operating the front opening can be mounted on the same tape recorder, and it is compatible with the DCC with shutter. ,
It is also possible to reproduce the conventional ACC.

According to this tape recorder, D
It is necessary to provide a shutter operating means for opening and closing the shutter of the CC, and at the time of using the ACC, it is necessary to configure the shutter operating means so as not to interfere with it.
The shutter operating means has a shutter operating shaft for abutting the shutter of the DCC to perform an opening operation, and a shutter operating means for abutting the thick portion of the front surface of the ACC to escape the shutter operating means in a two-dimensional rotation direction. Has been proposed.

[0004]

However, according to the above-mentioned proposed tape recorder, even when the DCC is mounted, the ACC
Even when mounted, the arm member of the shutter actuating means merely performs a two-dimensional rotation operation, and therefore, when using the ACC, the arm member that has been rotated is an obstacle,
There is a problem that the ACC insertion force (mounting force) becomes heavy.

The present invention solves such a problem, and an object of the present invention is to provide a tape recorder capable of smoothly operating the shutter operating means and applicable to both DCC and ACC tape cassettes. To do.

[0006]

In order to solve the above problems, a tape recorder of the present invention covers a front opening for inserting a magnetic head, a pinch roller, etc. when not in use, and when in use, the running direction of the magnetic tape or this. A tape recorder equipped with a shutter actuating means for opening and closing the shutter by mounting a tape cassette with a shutter that slides in the opposite direction to open the front opening.
At the time of mounting the second tape cassette in which at least a portion having a front opening for inserting a magnetic head, a pinch roller and the like is thicker than the tape cassette with the shutter, the arm member constituting the shutter operating means and the second tape cassette are mounted.
In order to prevent the front opening of the tape cassette from interfering with each other, the step difference in the thickness of the second tape cassette is utilized to cause the arm member to escape in the upper surface direction of the second tape cassette. Is.

[0007]

In the tape recorder of the present invention, the arm member constituting the shutter operating means is always brought into contact with the upper surface of the tape cassette by the urging force of the spring, and the shutter operating member rotates to slide the shutter. I will let you.

Further, the tape recorder of the present invention has a shutter operation which is lower than the contact portion configured to be capable of contacting the upper surface of the second tape cassette without the shutter and the thickness difference of the second tape cassette. The shaft allows the shutter operating member to escape in the upper surface direction without rotating.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The tape recorder of the present invention will be described below with reference to the embodiments shown in the accompanying drawings.

FIG. 1 is a plan view showing a main part before the DCC is inserted, FIG. 2 is a plan view showing a main part after the DCC is inserted, and FIG. 3 is a view showing the ACC after being inserted. FIG. 4 is a plan view showing a main part, FIG. 4 is a side view showing a positional relationship between a tape cassette mounting means and a shutter operating member, FIG. 5 is an enlarged plan view of a main part of FIG. 1, and FIG. 6 is an intermediate step of inserting an ACC. FIG. 7 is an enlarged plan view of an essential part, FIG. 7 is a side view in FIG. 6, a is a front view of the ACC, b is a front view of the DCC when the shutter is closed, and c is a front view of the DCC when the shutter is open.

In the figure, reference numeral 1 is a DCC (tape cassette with shutter), which has openings 1a, 1b for inserting the magnetic head 2 and the first and second pinch rollers 3, 4 provided on the front surface thereof. 1c is shutter 1d when not in use
When used, the shutter 1d is slid, for example, in the traveling direction of the magnetic tape or in the opposite direction to open these openings 1a, 1b, 1c. Further, it has a guide portion 1j and a locking groove 1k. When the shutter 1d is opened by sliding,
The first and second positioning holes 1e and 1f formed on the back side of the tape cassette 1 are also opened.

Reference numeral 5 denotes an ACC (second tape cassette) (see FIG. 3), which is a reel hub portion 5 for winding a magnetic tape.
a main body 5a accommodating c and tape (not shown), and openings 5e, 5f on the front surface 5d into which at least the magnetic head 2, the first and second pinch rollers 3, 4 and the like are inserted from the main body 5a. , 5g (see FIG. 8) constitutes a thick portion 5b which is thick.

A cassette holder 6 has fulcrums 6a,
By rotating the holder main body around 6b, the tape cassette is mounted on the cassette mechanism 7.

Although not shown, the cassette mechanism 7 has the first and second pinch rollers 3 and 4 and the magnetic head 2 to drive a magnetic tape or record / reproduce.

8 is the first tape cassette (DCC)
1 is a shutter actuating means for sliding the shutter 1d to open and close, and includes a rotation center hole 6c of the holder body 6, an arm member 8b rotatably supported by a rotation shaft 8a, and the arm member 8b. In the clockwise direction and the axial support direction (direction in which the arm member abuts the tape cassette).

The arm member 8b has an ACC5
An abutting portion 8d with which the front surface of the abutting portion abuts, a pin 8e for preventing slipping off by a groove 6d provided in the cassette holder 6,
An operating shaft 8c shorter than the wall thickness difference amount 5h of the ACC 5 is provided, and the operating shaft 8c abuts the end edge of the shutter 1d, depending on the insertion amount of the DCC 1 (in the arrow direction of FIG. 1).
The shutter 1d is sequentially opened by sliding against the biasing force of the spring 9 and the biasing force of the DCC 1 for closing the shutter (not shown). At that time, the shutter operating shaft 8c slides the shutter 1d while contacting the guide portion 1j.
When the shutter reaches the lock groove 1k, that is, in the state shown in FIG. 2, the shutter 1d is completely opened.

In this embodiment, as shown in FIG.
A spring 9 is provided between the arm member 8 and the inner surface 6d of the cassette holder and is biased in the axially supporting direction (the direction in which the arm member abuts the tape cassette), and as shown in FIG.
1 is inserted into the hole 6e of the cassette holder body, and the other end 9b is abutted against a pin 8e fixed to the arm member 8b by caulking or the like to urge the arm member 8b clockwise in FIG. It shows what to do.

Next, the operation of the tape recorder of the present invention constructed as in the above-described embodiment will be described.

First, the operation of the shutter operating means 8 when the DCC 1 is mounted will be described. When the DCC1 is first attached to the cassette holder 6 at the position shown in FIG. 1 and further pressed and inserted in the direction of the arrow, the biasing force of the spring 9 and the biasing force of the spring for closing the shutter configured in the DCC1 are resisted. Then, the shutter operating shaft 8c slides the shutter 1d while being in contact with the guide portion 1j, sequentially opens the shutter 1d, and the shutter operating shaft 8c reaches the locking groove 1k, that is, in the state shown in FIG.
The shutter 1d is completely opened, and in this state, various recording / reproducing operations of the DCC 1 are possible. When the shutter operation shaft 8c slides the shutter 1d, the arm member 8 appropriately rotates about the rotation shaft 8a. When the DCC1 is taken out, the shutter operation shaft 8c is sandwiched between the shutter 1d and the locking groove 1k by the biasing force of the spring in the closing direction of the shutter 1d at the initial stage of the operation, but the direction in which the DCC1 is taken out (see FIG. 2).
By pulling in the shutter 1d in the closing direction, the shutter actuating means 8 is restored to the state shown in FIG. 1 by its urging force corresponding to the pulling amount 1 of the DCC 1.

Next, the operation of the shutter operating means 8 when the ACC 5 is mounted will be described. When the ACC 5 is inserted into the cassette holder 6, the thick portion 5b of the ACC 5 is brought into contact with the contact portion 8d as shown in FIGS.
The arm member 8 is further inserted from this position.
The b is made to escape in the direction of the upper surface of the ACC 5 (the direction of the arrow in FIG. 7) without rotating, and various operations of reproducing the ACC 5 are possible. When the ACC 5 is taken out, the urging force of the spring 9 in the axial support direction restores the state shown in FIG.

[0021]

As described above, the tape recorder of the present invention covers the front opening for inserting the magnetic head, the pinch roller, etc. when not in use and slides it in the running direction of the magnetic tape or in the opposite direction when in use. A shutter actuating means for opening and closing the front opening is provided, and a contact portion of the shutter actuating means is brought into contact with a thick portion of a second tape cassette (ACC) without a shutter,
Since the shutter operating member can be escaped and inserted, the ACC insertion force (mounting force) can be reduced.

As described above, according to the tape recorder of the present invention, it is possible to provide a tape recorder which can be applied to both DCC and ACC tape cassettes and which can be mounted smoothly. is there.

[Brief description of drawings]

FIG. 1 is a plan view showing a main part of a tape recorder according to an embodiment of the present invention before a DCC is inserted.

FIG. 2 is a plan view of the main part of the same when a DCC is completely inserted.

FIG. 3 is a plan view of the main part when the ACC is completely inserted.

FIG. 4 is a side view showing the positional relationship between the tape cassette mounting means and the shutter operating member.

5 is an enlarged plan view of an essential part of FIG.

FIG. 6 is an enlarged plan view of an essential part in the middle of inserting the ACC.

FIG. 7 is a side view of FIG.

8A is a front view of the ACC, FIG. 8B is a front view of the DCC when the shutter is closed, and FIG. 8C is a front view of the DCC when the shutter is open.

[Explanation of Codes] 1 Tape cassette with shutter (DCC) 1a, 1b, 1c Opening 1d Shutter 1k Lock groove 2 Magnetic head 3 First pinch roller 4 Second pinch roller 5 Second tape cassette (ACC) 5b Thick part of the second tape cassette 5h Step amount of the second tape cassette 6 Cassette holder 7 Cassette mechanism 8 Shutter actuating means 8b Arm member 8c Shutter actuating shaft 9 Spring

Claims (1)

[Claims] 1. A tape with a shutter for covering a front opening for inserting a magnetic head, a pinch roller and the like when not in use, and sliding the magnetic tape in the running direction or in the opposite direction to open the front opening when in use. A tape recorder equipped with a shutter actuating means for opening and closing the shutter by mounting a cassette, wherein a portion having at least a front opening into which a magnetic head, a pinch roller, etc. are inserted is thicker than that of the tape cassette with the shutter. When the second tape cassette is mounted, the arm member constituting the shutter actuating means and the front opening of the second tape cassette are prevented from interfering with each other so that the arm member is provided on the upper surface of the second tape cassette. A tape recorder characterized by escaping in the direction.