JPS6052948A - Magnetic recording and reproducing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a tape guide in a magnetic reproduction device. The present invention relates to an upright tape guide device that stands up from an open state d= as a tape is loaded into a rotating magnetic head device.

[Background of the invention]

Conventionally, in the Helicals VTH, the one shown in Figure 1 has been implemented as a standing tape guide that is fixed to the loading ring during tape loading, falls down during unloading, and stands up with the loading operation. ing. In FIG. 1, reference numeral 101 denotes a ring, on the upper surface of which a loading ring 102 moves in the direction of the arrow in the figure. A standing guide 104 is rotatably supported on the loading ring 102 by a support device t1o5. The support device 105 is fixed to the loading ring 102. The erecting guide 104 receives a force from a spring 106 that tends to erect upward. However, at the position indicated by the solid line in the figure, the fixing member 106 prevents the user from standing up.

This state is the state before loading starts, and the loading operation starts from this state, and when the tape guide moves as the loading ring moves and reaches the position indicated by the dashed-dotted line in the figure, it is no longer held down by the fixing member 105. ,
stand up At the time of ayo-dig, this operation is exactly the opposite.

In the prior art example described above, the standing up guide stands up or falls down relatively quickly, so the operation tends to become unstable, and another guide must be placed on the loading ring in close proximity to the standing up guide. In many cases, the fixing member 103 cannot be provided due to space limitations. Furthermore, after standing up, the standing posture is unstable without an appropriate posture holding mechanism, and a separate posture holding mechanism is required.

[Purpose of the invention]

An object of the present invention is to eliminate the disadvantages of the prior art described above, and to provide a stand-up tape guide that does not take up much space and allows smooth stand-up and inversion.

[Summary of the invention]

The present invention provides a guide for guiding the standing up guide near the loading ring, and uses this guide to achieve smooth standing up of the standing up guide.

[Implementation sequence of the invention]

An embodiment of the present invention will be described in FIGS. 2 and 3.

FIG. 2 is a diagram showing the state after tape loading is completed in this embodiment. 1 is a tape cassette;
A supply reel 2 and a take-up reel 3 are held inside.

Before loading the magnetic tape 4, the magnetic tape 4 is placed in the position shown at 4', and the cylinder 5 is placed in the position shown in the figure for the loading operation.
A tape running path is formed in which about 330 tapes are wound around the tape. 7 (d) It is a loading ring, which is held by guide rollers 23, 24, and 25, and rotates in the direction of the arrow in the figure during loading.A gear part is formed on the outer periphery of the loading ring as shown in the figure. It is rotationally driven by a gear 8.The drive gear 8 is driven by a loading motor via a speed reduction mechanism (not shown).A shaft 1 fixed to the loading ring 7 is mounted on the loading ring 7.
There is a rotary lever 9 supported rotatably about 0, on which a cylinder outlet guide 16, a cylinder outlet width regulating guide 15, a tape guide 33, and a pinch roller arm 12 are supported. The pinch roller arm 12 is rotatably supported around a shaft 11, and a pinch roller 13 is disposed at the tip thereof. The rFjJ moving lever 9 is at the position 9' in the figure shown by the dashed-dotted line before loading starts, and when the loading ring starts and the loading ring rotates in the direction of the arrow in the figure, it is placed on the rotating lever. Hook the chiru tape onto the tape guide at position 4' and wrap it around the cylinder. Rotating lever 9
While rotating around the cylinder, the protrusion placed at the bottom of the shaft 11 engages with the guide plate 17, and guided by the guide plate 17, the rotary lever 9 rotates around the cylinder. It also rotates around the shaft 10, and returns to the position shown by the solid line in the figure when the loading blow is completed. Reference numeral 18 denotes a rotating member l1 arranged on the tape entry side to the 7 cylinder, and a 7 cylinder entry side guide 20 and a cylinder entry side width regulating guide 19 are arranged on it. The rotating member 18 is at the position 18' shown by the dashed line before loading starts, and during the loading operation, it rotates in the direction of the arrow in the figure and reaches the position shown by the solid line. 21
is the standing up guide of the present invention. This standing up guide is inclined in the direction opposite the tape guide 331C, and is caused by being wound around the cylinder 5 in a spiral shape between the standing up guide 21 and the inclined guide 35. Corrects the tape height difference. Before loading starts, the upright guide 21 is at a position 21' indicated by a chain line in the figure, and the upright guide 21 is in a fallen state. During loading, it rotates together with the loading ring and gradually stands up until it reaches the final position indicated by the solid line. As a result, the stand-up guide passes through the lower part of the cassette without catching the tape. 22 is a guide plate for guiding the standing up of this standing up guide, and a 6-piece cylinder 5
It is a cylinder base for fixing. During recording and playback, the magnetic tape 4 exits the supply reel 2 and passes through the tenon post 34, the exit head 31, and the input side width regulation guide 19.
, cylinder inlet guide 20, cylinder 5, cylinder outlet guide 16, v-y cylinder outlet width regulation guide 15, control head 32, shaft stan 14, chief guide 3
3. The tape is wound onto the take-up reel 3 through the upright guide 21, the tilt guide 35, and the cassette entry guide 36.

Next, the operation of the plow raising guide is shown in Fig. 3. The upright guide 2Lj-j is fixed to a boss 26, and the boss 26 rotates together with a rotating shaft 28.

The rotating shaft 281 is rotatably held by a support plate 27, and the support plate 27 is fixed to the loading ring 7. On the other hand, a guide member 30 is fixed to the rotating shaft 28, and this guide plate 2 is fixed to the cylinder pace 6.
It is in contact with the upper end surface of 2. Also, the boss 26 and the support plate 27
are connected by a spring 29, which causes the upright guide 2 to
1 receives a force that tends to fall downward, and this force becomes a contact force between the guide member 30 and the upper end surface of the guide plate 22, so that the upright guide posture is maintained. Therefore loading ring 7
As the guide member 60 rotates, the height of the upper end surface of the guide plate 22 in contact with the guide member 60 is gradually increased.
rotates counterclockwise, and the standing guide 21 integrated therewith also gradually rotates counterclockwise to stand up. Reference numeral 36 denotes a part of a V-shaped stopper, which regulates the height of the guide member 3o and maintains the attitude of the upright guide 21, and in the case of this embodiment, since it is an inclined guide, the inclination angle is maintained.

The operation during unloading is completely opposite to the loading operation, and due to the restoring force of the spring 29, it gradually returns to the fallen position at the start of loading. In this embodiment, the guide member 3o is provided separately from the boss 26, but of course the same operation can be achieved by providing a convex portion on the boss 26, and in some cases, the guide member 3o may be provided as a part of the upright guide. However, it may be made to contact the end surface of the guide plate 22. Further, the guide plate 22 may be provided to cover the entire movement of the upright guide, or may be provided to guide part of the movement as shown in FIG.

〔Effect of the invention〕

According to the present invention, it is possible to manufacture a stand-up guide for a helical scan tape recorder that can operate reliably with a simple and compact mechanism and maintain an accurate posture when standing up. ``It is possible to obtain a compact, stationary magnetic recording and reproducing device.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a conventional standing up guide; FIG. 2 is a plan view showing a loading mechanism according to an embodiment of the present invention; and FIG. 3 is a partial perspective view of the standing up guide. 1... Cassette 4... Magnetic tape 5... Cylinder 7... Loading ring 21... Standing guide 22... Guide plate 50... Guide member 28... Rotating shaft 29... Spring 36...・Part of the stopper. Station 1 Store, 7 E

Claims (1)

[Claims] 1. In a magnetic recording and reproducing device equipped with a rotating magnetic head device, for the loading operation of winding the tape around the magnetic head device, there is a moving member that moves the rotating magnetic head device, and a device that rotates on the moving member. a stand-up guide that is rotatably supported with a pivot, is in a fallen state before the loading operation starts, and stands up midway through the loading operation; 1. A magnetic recording and reproducing device comprising a guide member for guiding the magnetic recording and reproducing device.