JPH0654579B2 - Magnetic recording / reproducing device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a magnetic recording / reproducing apparatus, and more particularly to a magnetic recording / reproducing apparatus having a configuration suitable for downsizing of the apparatus.

[Conventional technology]

A conventional magnetic recording / reproducing apparatus of this type is disclosed in, for example, Japanese Patent Laid-Open No.
-Recording / playback (during operation) as described in JP-A-171070
The size of the device is the same when carrying or storing (non-operating) or larger when not operating, and it was difficult to miniaturize the device when recording and reproducing when not operating. .

[Problems to be solved by the invention]

The above-mentioned prior art does not consider the operation of the cassette holder in order to reduce the size of the magnetic recording / reproducing apparatus when it is not in operation, and can meet the demand for downsizing when carrying or storing. It was difficult.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a magnetic recording / reproducing apparatus which can be miniaturized when carried or stored.

[Means for solving problems]

The above-mentioned object can be achieved by a configuration in which the cassette holder of the magnetic recording / reproducing apparatus when not in operation is efficiently stored in the apparatus.

[Action]

The cassette holder moves in the direction of the rotating cylinder on the chassis when not operating (when carrying or storing), and is arranged on the upper surface, lower surface, or side surface near the rotating cylinder.
Also, during recording / playback (during operation), the cassette holder is pulled out and further lowered or raised or rotated to place the cassette on the side surface (normal position) of the rotating cylinder, so the device during non-operation is downsized. it can.

〔Example〕

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

1 (a), (b) and (c) are perspective views showing an appearance (a) of an apparatus main body showing an embodiment of the present invention and a mounting operation (b) (c) of a cassette containing a magnetic tape. It is a figure, 1 is a cassette, 2
Is a cassette holder, 3 is a cassette holder lid, 4 is a device body, 4-a is a front part of the device, and 4-b is a rear part of the device.

As shown in FIG. 1 (a), the cassette 1 is inserted into the cassette holder 2 in the raised position in the direction of arrow A. Then first
As shown in FIG. 3B, the cassette holder 2 and the cassette holder lid 3 are lowered in the direction of arrow B and mounted on the apparatus body 4. Then, as shown in FIG. 1 (c), the front part 4-a of the apparatus is
Is pulled out in the direction of arrow C, and a recording / reproducing operation is performed. At this time, a shutter plate (not shown), which will be described later, is moved by being pulled by the cassette holder lid 3 to cover the upper surface of the rear portion 4-b of the apparatus. Since it operates in this way, it can be stored in the state of FIG. 1 (b) when it is not in operation (for carrying and storing).

2 (a) and 2 (b) are perspective views of the external appearance of the apparatus according to the embodiment of the present invention shown in FIG. 1 as seen from the rear, and 20 is a shutter plate.

As shown in FIGS. 2 (a) and 2 (b), the shutter plate 20 is connected to the rear side of the cassette holder lid 3, and in the non-operating state of the device body shown in FIG. 4 rear part 4-c
Is located in. Then, as shown in FIG. 2 (b), the front portion 4-a of the apparatus main body 4 is pulled out in the direction of arrow C when the apparatus is operating, and the recording / reproducing operation is performed. Front part 4-a of the device body 4
When the sheet is pulled out forward, the shutter plate 20 connected to the cassette holder lid 3 moves in the direction of arrow G from the back surface 4-b of the apparatus body 4 and covers the upper surface of the apparatus body 4. Therefore, even after the cassette holder lid 3 is moved, the upper surface of the rear portion 4-b of the apparatus body 4 is covered by the shutter plate 20, and the inside of the apparatus is not exposed.

FIG. 3 is a plan view showing the details of one embodiment of the magnetic recording / reproducing apparatus according to the present invention. 5-a and 5-b are reels arranged in the cassette 1, 6 is a rotating cylinder, and 7 is Magnetic tape, 8 pulls the magnetic tape 7 out of the cassette 1,
An inlet side guide roller wound around the rotary cylinder 6 at a predetermined angle,
9 is the guide roller on the output side, 10 is a pull-out roller, 11
Is a loading motor that is a drive source for driving the input and output side guide rollers 8 and 9 and the like to perform a loading operation, 12 is a capstan that runs the magnetic tape 7 at a constant speed, 13 is a pinch roller, and 14 is a cassette holder. A motor for moving the cassette holder, which is a drive source for moving 2 in the direction of arrow D,
Reference numerals 15-a to 15-d denote cassette holder moving gears for transmitting the rotation of the cassette holder moving motor 14 to move the cassette holder 2. In the figure, the rotation of the cassette holder moving motor 14 indicates that the cassette holder moving gears 15a to 1
Transmitted to 5d. Final stage of cassette holder moving gear 15
Since -d is engaged with a part 2-a of the cassette holder, the cassette holder 2 moves in the direction of arrow D.

FIG. 4 is a side view showing the operation of an embodiment of the magnetic recording / reproducing apparatus according to the present invention, and FIGS. 4 (a) to (e) show the respective operation steps.

In the figure, 16 is a reel 5-a, 5- in the cassette 1.
A claw that engages with b (FIG. 3) and winds or sends out the magnetic tape, 17 is a chassis, 8 is a cassette holder support shaft that pivotally supports the cassette holder 2, and 19 is the cassette holder 2 mounted on the chassis 17. On the other hand, the sub-chassis is movable in the direction of the rotary cylinder 6.

As shown in FIG. 3A, the cassette holder 2 is raised around the cassette holder support shaft 18 as a rotation center, and the cassette 1 can be inserted in the direction of arrow A.

As shown in FIG. 3B, the cassette holder 2 is rotated in the direction of arrow B with the cassette holder support shaft 18 as the rotation center.
The pawl 16 is engaged with a reel (not shown) in the cassette 1. Then, the cassette holder 2 is further lowered,
As shown in (c), the cassette holder 2 is stored on the rotary cylinder 6. It can be stored and carried in the state of FIG. Then, at the time of recording and reproducing, the same figure (d)
As shown in FIG. 5, the cassette holder moving motor 14 moves the sub-chassis 19 in the direction of arrow C so that the front portion 4-a of the apparatus main body 4 projects. Further, as shown in FIG. 7E, the cassette holder 2 is lowered in the direction of arrow E, and the cassette 1 is placed on the chassis 17. At this time, a mechanism for lowering the ceiling portion 4-d of the device also allows the device to be thinned during recording and reproduction.

As described above, according to the present embodiment, by storing the cassette holder 2 on the rotary cylinder 6 when the magnetic recording / reproducing apparatus is not operating, the length of the apparatus during recording / reproducing (see FIG. 4). Significantly shorter than L dimension of (d) (l dimension of (c) in the figure)
It is possible to downsize the device when it is not operating.

Further, in the above embodiment, the cassette 1 is placed in the cassette holder 2.
This is an example in which the cassette holder 2 is moved in a state in which is stored. Next, an embodiment will be described in which the cassette 1 is not stored in the apparatus main body 4 and the miniaturization at the time of non-operating magnetic recording / reproducing is realized.

FIG. 5 is a side view showing another embodiment of the magnetic recording / reproducing apparatus according to the present invention, in which the cassette holder 2'is the cassette 1.
The mechanism for holding the bottom of the cassette 1 or for holding the cassette 1 when the cassette 1 descends to the side surface of the cylinder 2 does not use the frame including the cassette 1 as in the above embodiment. By using the cassette holder 2'having such a structure, the height (H dimension in FIG. 5) of the apparatus main body 4 is compared with that in the above embodiment even when the moving mechanism of the cassette holder is adopted as in the above embodiment. Then, it is possible to reduce the height by the height of the cassette 1.

FIG. 6 is a side view showing still another embodiment according to the present invention, in which 18 'is a chassis rotating shaft for rotatably supporting the chassis 17 and the sub chassis 19. In this embodiment, the sub-chassis 19 is erected in the direction of arrow F about the chassis rotating shaft 18 'to reduce the size of the device when not in operation.

FIG. 7 is a side view showing still another embodiment according to the present invention, in which 21 is a guiding groove of the sub-chassis 19 arranged on the chassis 17, and 22 is a guide groove for guiding the sub-chassis 19 to the chassis 17. It is a sub-chassis holding member that engages with and holds the working groove.

In this embodiment, the sub-chassis 19 is moved along the guide groove 21 arranged on the chassis 17 and is stored in the lower part of the chassis 17.

At this time, the claws 16 and the like protruding above the sub chassis 19 are stored in the sub chassis 19.

As for the reel stand drive / stop mechanism common to the above-described embodiments, an idler, a brake lever, etc. are arranged on the chassis 17 to be engaged when the sub-chassis 19 moves to a fixed position during recording / reproduction. It can be realized by the mechanism.

Further, as a drive source for moving the sub-chassis 19, a dedicated motor is used in each of the above-mentioned embodiments, but it may be shared with other motors such as a loading motor, or realized by an electromagnet, a spring, a manual operation or the like. Is.

〔The invention's effect〕

As described above, according to the present invention, since the cassette holder can be stored in the apparatus when it is not operating, the size of the cassette holder can be greatly reduced when it is carried or stored. A recording / reproducing device can be provided.

[Brief description of drawings]

1 (a), (b), and (c) are perspective views showing the external appearance of an apparatus according to an embodiment of the present invention together with the operation process, and FIG. 2 is an external view of the apparatus shown in FIG. FIG. 3 is a perspective view, FIG. 3 is a plan view for explaining details of an embodiment of the present invention, and FIG.
(a), (b), (c), (d), and (e) are side views showing the operation process of one embodiment of the present invention, and FIGS. 5, 6, and 7 are respectively views of the present invention. It is a side view which shows other Examples. 1 ... Cassette, 2, 2 '... Cassette holder, 4 ... Device body, 6 ... Rotating cylinder, 14 ... Cassette holder moving motor, 15 ... Cassette holder moving gear, 17 ... Chassis, 19
… Sub chassis, 20… Shutter plate.

Claims (1)

[Claims] 1. A magnetic recording / reproducing apparatus comprising at least a rotary cylinder carrying a magnetic head, a chassis holding the rotary cylinder, and a cassette holder holding a magnetic tape cassette, wherein the cassette holder is mounted.
A sub that moves to a first position where recording / reproduction is performed on the magnetic tape of the magnetic tape cassette, and a second position which is near the rotary cylinder with respect to the first position when the recording / reproduction is not performed. A magnetic recording / reproducing apparatus having a structure in which a chassis is provided, and the sub-chassis is moved to the second position when not in operation to reduce the size of the apparatus.