JPS5850513Y2 - Tape guide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape guide device 1ζ in a magnetic recording/reproducing device that can smoothly insert a tape between a capstan and a pinch roller.

Conventionally, in magnetic recording and reproducing devices, a pinch roller is provided at a predetermined distance from the capstan.

When inserting the tape into the above-mentioned space, a means for smoothly inserting the tape without being obstructed (capstan or pinch roller) is required.

A conventional example of the means will be explained below based on the drawings.

1 is a capstan, 2 is a pinch roller, and the pinch roller 2 faces the capstan 1 and is rotatably held by a pinch roller shaft 3.

Further, a conical tape guide 4 is provided at the head of the pinch roller 2, and when the cassette case 6 is lowered (loaded), the tape 5 inside the cassette case 6 is transferred to the inclined portion 4a of the tape guide 4. and is inserted between the capstan 1 and the pinch roller 2.

Also, at this time, the cassette case front lid 7 is opened by a front lid opening member (not shown).

After the loading of the cassette case 6 is completed, the capstan 1 is located inside the cassette case 6.

Conventionally, cassette loading has been performed by the operation described above.

However, the tape 5 often slackens within the cassette case 6, and when the cassette case 6 descends in this state, the tape 5 rides on the top of the tape guide 4 and is placed between the capstan 1 and the pinch roller 2. They were not inserted and were bent or otherwise damaged and deteriorated.

Furthermore, in severe cases, internal parts of the apparatus may get caught, making it difficult to remove the cassette.

In contrast to such conventional means, a method has been reported in which the upper part of the tape guide 4 is raised and the sloped portion 4a has a sufficient width and slope angle as a means for more securely inserting the tape 5. There is.

With this configuration, the cassette case front lid 7 rotates above the tape guide 4, which limits the shape and size of the cassette case front lid, making the cassette shape complicated and weakening its strength.

Moreover, on the contrary, it was difficult to obtain a sufficient height for the tape guide body 4 due to the shape of the front cover of the cassette case.

Furthermore, as another means, a method of widening the gap between the capstan 1 and the pinch roller 2 has been reported.

This method makes it easier to insert the tape 5 than the above method, but it requires a large amount of movement of the pinch roller 2, and a drive device (not shown) that presses the pinch roller 2 against the capstan 1 is required. The complexity and the large amount of movement of the pinch roller 2 have been major drawbacks in reducing the size of the magnetic recording/reproducing device.

SUMMARY OF THE INVENTION The present invention aims to eliminate the drawbacks of the conventional tape guide device and provide a tape guide device that does not have a complicated cassette shape or drive device and can be downsized.

The present invention will be explained based on the drawings.

FIG. 2 shows the tape guide device of the present invention.

The following structure of the present invention is shown.

In the figure, 8 is a capstan, 9 is a pinch roller,
The pinch roller 9 has a bearing 11 on the pinch roller shaft 10.
a.

It is rotatably held via 11b.

Reference numeral 12 denotes a tape guide body which is formed by bending an elastic plate at an acute angle to each other and is disposed above the pinch roller, and one end of the tape guide body is fixed to the upper end surface of the pinch roller shaft 10.

The other end of the tape guide 12 is provided as a free end and is expanded to form an inclined surface 12a that is radially inclined in the tape insertion direction, that is, at an acute angle with respect to the horizontal piece.

Further, the material is designed so that the elastic force of the tape guide body 12 resists the tape 13, but does not resist the opening force of the cassette case front lid 15, etc.

Next, the operation of the tape guide device of the present invention will be explained.

When the tape 13 starts to descend when the cassette case 14 is loaded, the cassette case front lid 15 engages with a front lid opening member (not shown) and begins to open.

At the same time, the tape guide 12 guides the tape 13 between the capstan 8 and the pinch roller 10.

Then, as the lowering operation progresses further, the cassette case front cover 15
The tape guide 12 is pushed and the free end 12-1 moves.

The tape 13 is guided while contacting the side surface of the inclined surface 12a of the tape guide 12, and is inserted between the capstan 8 and the pinch roller 9 as the cassette case 14 descends.

At this time, at the beginning of the descent of the cassette case 14, the inclined surface piece 12a of the tape guide body 12 meets the tape at an acute angle, there is little frictional resistance, and the tape 13 can be easily inserted. Since the front cover 15 of the cassette case is located in the cassette case, the space can be used effectively.

Alternatively, the tape guide body may be a striated body. The present invention is based on the above-mentioned structure, and even if the tape is abnormally slack in the cassette case, the elastic guide body changes its insertion angle to accommodate the tape, making it easy to move the tape between the capstan and the pinch roller. The gap between the capstan and the pinch roller, which can be guided and inserted between them, can be made extremely small, and the magnetic recording/reproducing device can be miniaturized.Since the guide body is an elastic body, the guide body can be easily Can be installed for a long time,
The tape can be guided safely, and when the cassette is loaded, the guide body is displaced by contact with the case front cover 15 so as not to be obstructed by the cassette case front cover 15, so that space can be used effectively. It produces the following effects.

Furthermore, in the embodiment of the present invention, the capstan is located inside the cassette case after the cassette is loaded, but conversely, even in a device in which the pinch roller is located inside the cassette case in the above state, the capstan is located near the capstan. A similar effect can be obtained by providing a guide body with elasticity.

In this case, it is necessary to separately provide a support for the tape guide.

[Brief explanation of the drawing]

FIG. 1 shows a configuration diagram of a conventional tape guide device, and FIG. 2 shows a configuration diagram of a guide device of the present invention. 8: capstan, 9: pinch roller, 10: pinch roller shaft, 11a, llb: bearing, 12: tape guide, 13: tape, 12a: inclined surface piece, 14: cassette case, 15: cassette case front lid.

Claims (1)

[Scope of utility model registration request] In a magnetic recording/reproducing device, a tape guide member, which is an elastic body, is provided with a gap above a capstan or a pinch roller, and the tape guide member is bent to form an inclined surface portion that forms an acute angle with the horizontal portion. When the front cover of the cassette case starts to open as the cassette case descends, the tape is guided between the capstan and the pinch roller while being in contact with the side surface of the inclined surface of the tape guide, while the front cover A tape guide device configured to push down an inclined surface portion of the tape guide body.