JPS6236771A - Fixing and holding device for tape guide - Google Patents

Abstract

PURPOSE:To attain the easy production of a cylinder base with high accuracy and to realize the thin and light-weight design of a fixing/holding device for tape guide, by providing integrally a front control part, a horizontal control part and a vertical control part with the tape guide for the control of this tape guide. CONSTITUTION:A cylinder base 3 is put on a substrate 1 and tape guides 6 and 14 can slide the loading grooves 2 and 2b respectively. When a drive motor is driven and both guides 6 and 14 slide the grooves 2a and 2b respectively, both guides 6 and 14 interlock pins 4a and 4b as well as projected bars 5a and 5b respectively. Then the pin 4b is engaged with a V-shaped groove 10b and the forward shift of the pin 4b is regulated. While the pin 4b is engaged with a U-shaped groove 11b and the horizontal shift of the pin 4b is regulated. Then a recess part 12b is engaged with the bar 5b and the upward shift of the part 12b is regulated. At the same time, a slide part 13b slides the groove 2b and the downward shift of the part 13b is regulated. Furthermore the backward shift on the guide 14 is also regulated.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a fixing and holding device for a tape guide in a magnetic recording/reproducing device.

(B) Prior Art In recent years, with the remarkable spread of magnetic recording and reproducing devices, advances have been made in streamlining the devices to make them thinner, lighter, and lower in cost. At the same time, there is a trend toward longer recording/playback times, requiring mechanisms with greater precision than ever before. In particular, the tape running path of a magnetic recording/reproducing device has a great influence on the compatibility of recording/reproducing, and its deviation from the theoretical value and stability require micron precision.

Therefore, in order to cope with the above, for example, the patent application No. 58-1568
No. 14 technology is presented. In other words, during recording/reproduction, the magnetic tape is pulled out from inside the tape cassette by the tape guide along the tape running path and wound around a rotating cylinder. A means for regulating the movement of the body in the front, left and right, and up and down directions is required. Therefore, in the above technique, the fixing and holding means for the tape guide and the cylinder base on which the rotary cylinder is placed are integrally molded using a mold.

p'1 Problems to be Solved by the Invention However, in the case of the above technology, since the fixing and holding means of the tape guide and the cylinder paste were integrally molded, the attachment to the board was simplified, but the force Since the fixed holding means has regulation grooves of different shapes, split molds and core molds are required for integral molding of the fixed holding means and cylinder paste, including the molding of the tape guide. There was a problem in that the productivity of individual items became worse.

B) Means for Solving the Problems The present invention has been made to solve the problems described above, and includes a loading groove provided on a substrate that slides and the downward movement of the substrate is restricted by the substrate. In a magnetic recording/reproducing device that records/reproduces a magnetic tape guided by a tape guide and wound around a rotary seven-cylinder while it is running, it is integrated with a cylinder pace placed on the substrate. A forward regulating part and a left-right regulating part that engage with a first engaging part provided in the tape guide and regulate the movement of the tape guide in the forward direction and the left-right direction, and are provided integrally with the cylinder pace. The tape guide fixing/holding device includes an upward regulating part that engages with a second engaging part and regulates upward movement of the tape guide, and is integrally provided with the tape guide.

(e) Function: According to the tape guide fixing and holding device of the present invention, the forward regulating section, the left-right regulating section, and the upward regulating section for regulating the movement of the tape guide are provided integrally with the tape guide. Therefore, cylinder pace can be easily and accurately produced.

(f) Example The details of the present invention will be specifically explained with reference to illustrated embodiments.

FIG. 1 is a perspective view showing a fixing and holding device for a tape guide according to the present invention, FIGS. 2 and 3 are perspective views showing the tape guide shown in FIG. 1, and FIG. 4 is a perspective view showing the tape guide shown in FIG. FIG. 5 is a sectional view showing the tape guide fixing and holding device of the present invention.

To explain the figure numbers and configurations of Figures 1 to 5, (
1) is a substrate having loading grooves (2a) (2b), (3) is a protruding pin (4a) (4b) as a first engaging part that protrudes up and down, and a protruding part as a 20th engaging part. The cylinder plate has pieces (5a) and (5b), on which a rotary cylinder (not shown) is placed, and is integrally molded with a mold made of aluminum die-casting or the like, and (6) is a magnetic tape ( 7) Loading boss to pull out) (8a
) and an inclined ball (9a) are planted, and the protruding bottle (
7-shaped groove (10a) as a forward regulating portion that engages with
), a U-shaped groove (lla) as a left-right regulating section, and a recess (1) as an upward regulating section that engages with the projection (5a).
2a), and a tape guide having a sliding part (13a) as a downward regulating part that slides in the loading groove (2a), the α core is similar to the tape guide (6), and the magnetic tape ( 7) Pull out the loading post (sb
) and an inclined ball (9b) are planted, and the protruding bottle (
7-shaped groove (10b) as a forward regulating portion that engages with
), a U-shaped groove (llb) as a left-right regulating part, and a recess (1) as a downward regulating part that engages with the protrusion (5b).
2b) and a sliding part (13b) as a downward regulating part that slides in the loading groove (2b), both of which are loading bosses) (8a)
Except for (8b) and the inclined balls (9a) and (9b), they are integrally molded with a mold in the same way as the cylinder pace (3).

The present invention will be explained in detail below. The cylinder pace (3) shown in Fig. 4 is placed on the substrate (1) K, and
The tape guides t6) and Q4) shown in the figures are respectively slidable in the loading grooves (2a) and (2b).

There, the driving force of the drive motor (not shown) is transmitted, and when the tape guide (6) (141) slides on the loading grooves (2a) (2b) as shown in FIG. (4b) and protrusions (5a) and (5b).

FIG. 5 shows the engaged state of one tape guide, that is, the 7-shaped groove (10b) engages with the protruding pin (4b) to restrict its forward movement, and the U-shaped groove (llb
) engages with the protruding pin (4b) to restrict its movement in the left-right direction, and the recess (12b) engages with the protrusion (5b) to restrict its upward movement and prevents sliding. Moving parts (1
3b) slides on the loading groove (2b), and its downward movement is restricted. Furthermore, even if the tape guide (141) tries to move backward due to some kind of malfunction, the transmission mechanism stops when the drive motor stops, so the backward movement of the tape guide is also restricted. The tape guide body (6) is securely held fixed on the side of the cylinder pace (3), and the other tape guide body (6) is also securely held fixed in the same way as the tape guide body 04).

Also cylinder pace (3), protruding pin (4a) (4b)
, and the projecting pieces (5a) and (5b) using a mold, it is possible to integrally mold them using a simple split mold.

(g) Effects of the Invention According to the fixing and holding device for a tape guide of the present invention, the front force rotation regulating section, the left-right direction regulating section, and the upward regulating section that regulate the movement of the tape guide are integrated with the tape guide. Since the cylinder base is provided in the cylinder base, it is possible to easily and accurately produce the cylinder base, and there are also advantages such as the ability to make the device thinner and lighter.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a fixing and holding device for a tape guide according to the present invention, FIGS. 2 and 3 are perspective views showing the tape guide shown in FIG. 1, and FIG. 4 is a perspective view showing the tape guide shown in FIG. FIG. 5 is a sectional view showing the tape guide fixing and holding device of the present invention. Explanation of main drawing numbers +1+... Board, (2a) (2b)... Loading groove, (3)... Cylinder pace, (4a)
(4b)...Protruding pin, (5a) (5b)...Protrusion piece, (6) α-branch...Chi 1 guide body, (7)...Magnetic tape. Applicant Sanyo Electric Co., Ltd. and one other representative Patent attorney Shizuo Sano Figure 2 IF3 Figure 4 d

Claims (1)

[Claims] (1) The magnetic tape slides in a loading groove provided on the substrate, is guided by a tape guide whose downward movement is regulated by the substrate, and is wound around a rotating cylinder. In a magnetic recording and reproducing device that performs recording/reproducing in a state in which the tape guide member engages with a first engaging portion provided integrally with a cylinder base placed on the substrate, A forward regulating section and a left/right regulating section that regulate the movement of the tape guide member engage with a second engaging section provided integrally with the cylinder base, and the upper direction regulating section that regulates the upward movement of the tape guide body. with the regulatory department,
A fixing and holding device for a tape guide, characterized in that it is provided integrally with the tape guide.