JPS61134956A - Driving device of magnetic tape - Google Patents

Abstract

PURPOSE:To drive a magnetic tape without bringing a pintch roller into contact with a magnetic face and, at the same time, to miniaturize a magnetic tape driving device, by housing a magnetic tape guiding member including the pintch roller in a box body. CONSTITUTION:A pintch roller 4, running guiding member 5, and other runnin guiding members 11-14 are moved from the box body of a cassette 10 to the vicinity of a cylinder 15 and, as the movement goes on, a pin 7 fixed to a base table 3 contact and slides on an engaging member 8 by means of the forcing force of a spring 6 and, even when the guiding member 5 is moved to a prescribed position, the pintch roller 4 does not contact a capstan shaft 1 and a tape 9 is not driven for running. When the engaging member 8 is swung thereafter, the pin 7 fixed to the base table 3 is released from the engaged condition and the base table 3 is swung by the forcing force of the spring 6. Then the pintch roller 2 contacts the capstan shaft 1 and the tape 9 is driven for running.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a magnetic tape drive device.

2. Description of the Related Art As shown in FIG. 3, a conventional magnetic tape drive device includes a magnetic tape running guide member 41.
42, 43, and 44 to a predetermined position, and attach the pinch roller 46 to the capstan shaft 46 inserted into the cassette body.
was crimped and released from the outside.

Problems to be Solved by the Invention However, in such conventional devices, the pinch roller comes into contact with the magnetic surface, making it easy for dust to adhere to the device, and it is difficult to respond to miniaturization of the device.

In consideration of the above points, the present invention has a pinch roller housed within the cassette body and transported together with a guide member to a predetermined position, thereby making it possible to press and release the pinch roller from the capstan shaft.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides the base of the pinch roller to be coaxially supported and attached to one of a plurality of guide members leading out to the body of the cassette. The locking member locks and releases the base so that the pinch roller presses and releases the capstan shaft after it is stored in the frame and then transferred to a predetermined position.

Effects of the present invention With the above-described configuration, the magnetic tape guide member including the pinch roller is housed in the frame, so that the pinch roller can be driven without contacting the magnetic surface, and the apparatus can be made compact.

Embodiment FIG. 1 is a perspective view showing the main parts of an embodiment of the magnetic tape drive device of the present invention. 1 is a capstan shaft, and 2 is a pinch roller which is rotatably supported on a shaft 4 of a base 3. Reference numeral 5 denotes a guide member that rotatably supports the base 3 on the same axis. are in contact with each other. Figure 2(a)
, and (b) show the cassette 10, the pinch roller 4, the travel guide member 5, and other travel guide members 11.12, 13.1.
4 is transferred from the body to the vicinity of the cylinder 16, and as a result of this transfer, the pin 7 fixed to the base 3 is attached to the locking member 8 by the spring 6.
It comes into contact with the urging force of and slides.

Even when the traveling guide member 6 is moved to a predetermined position, the pinch roller 4 does not come into contact with the capstan shaft 1, and the tape 9 is not driven and traveled. Thereafter, by swinging the locking member 8, the pin 7 fixed to the base 3 is released, and the base 3 swings under the biasing force of the spring 6, and the pinch roller 2 is moved to the capstan shaft. 1, the tape 9 is driven and run.

As described above, according to this embodiment, the pinch row 22 is housed within the main body of the carrier cassette 10, so that it is positioned on the back side of the magnetic surface of the tape 9, and in this state, the tape is inserted into the main body of the cassette 10. taken from. Therefore, the pinch roller 2 does not come into contact with the magnetic surface of the tape 9, and the magnetic surface is kept clean. Yes, it can be preserved. Furthermore, as described above, the pinch roller 2 is housed within the frame of the cassette 10, so space can be used effectively, contributing to miniaturization of the device.

Effects of the Invention As described above, according to the present invention, it is possible to realize a magnetic tape drive device that has a simple configuration and is optimal for downsizing.

[Brief explanation of drawings]

FIG. 1 is a plan view of the internal members of a magnetic tape according to an embodiment of the present invention. 1...Capstan shaft, 2...Pinch roller, 3...Base, 6...Travel guide member, 6...Spring , 7...pin, 8.
...Locking member, 9...Tape. Name of agent: Patent attorney Toshio Nakao and 1 other person f1
1. Caff 0's 2nd glaze No. 1 Figure 211
．． Bi〉Tyrola 3...Base 5...Travel guide Mi material 61.・Spring 7... Spring 8... A system locking member Fig. 2 Fig. 3

Claims (1)

[Claims] In a device for recording and reproducing by leading the magnetic tape of a cassette tape out of the cassette body and running it, a plurality of magnetic tape running guide members housed within the cassette body and a base are attached to one of these running guide members. is composed of a pinch roller coaxially supported and a locking member, and the pinch roller, which has been moved to a predetermined position together with the traveling guide member, is pressed against a rotating drive shaft by the locking member and released, thereby driving the magnetic tape. Device.