JPH0397153A - Loader - Google Patents

Abstract

PURPOSE:To obtain a positioning mechanism easily manufactured and with high incident angle accuracy of magnetic tape by performing positioning by abutting a perpendicular post with two planes formed in V shaped, and abutting an oblique post at two, upper and lower, parts on one plane. CONSTITUTION:A positioning fixing operation is performed by applying a setting force on a rod 5a in a direction of arrow head with a pressing and driving mechanism. In other words, the balance of power can be obtained at six points in total by abutting the perpendicular post 6 with a first abutting plane 11a and a second abutting plane 11b at points A, B, respectively, abutting the oblique post 9 with an oblique post catcher upper part 12 and an oblique post catcher lower part 13 at points C, D, respectively, bringing an upper abutting part 16 into contact with a third abutting plane 19 at a point E, and bringing a lower abutting part 18 into contact with the upper plane of a substrate 1 at a point F. Also, those catcher parts can be cut with the same process with an end mill, etc., after cutting a drum base upper plane when they are formed integrally with a drum base 2. Thereby, manufacturing easily is performed, and the positioning with high accuracy is realized, and the dispersion of the incident angle of the magnetic tape 4 on a rotary drum 3 is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application in Industry A] The present invention relates to a loading device for a magnetic recording/reproducing device using a tape cassette, and more particularly to a structure for positioning a vertical post and an inclined post during loading. [Prior Art] Fig. 7 is a plan view showing a loading device of a magnetic recording/reproducing device, and Fig. 8 is a catcher portion of a vertical post and an inclined post of a conventional loading device shown in Japanese Utility Model Application Publication No. 63-2242. Plan view showing the state at the time of loading, No. 9
The figure is a side view taken along the line IX-IX in FIG. In the figure, (1) is the board, (2) is the drum base attached to the board (1), (3) is the rotating drum attached to the drum base (2), and (4) is the tape pulled out from the tape cassette (20). magnetic tape (5) is magnetic tape (4)
(6) is a vertical post installed in this leading guide (5), (7) is an auxiliary post installed in the leading guide (5). , (8) is the leading guide (
The spring plate (9) is attached to the spring plate (5), and the tilted post (9) is attached to the spring plate (8).
0) is the mounting screw that attaches the spring plate (8) to the leading guide (5), (11) is the drum base (2)
vertical post catcher formed in a V-shape, (12
) is the upper part of the V-shaped inclined post catcher on the drum base (2), (13) is the drum base (2) &:
V-shaped inclined post catcher lower part (l4
) is a guide roller attached to the vertical post (6),
(15) is a guide groove of a leading guide (5) formed on the substrate (1).

Next, we will explain the operation. When pulling out the magnetic tape (4) from the tape cassette (20) and loading it onto the rotating drum (3), the leading guide (5)
21) to the magnetic tape (4) from the guide roller (14)e.
While hanging and pulling out the guide groove (15), the vertical post (6) and auxiliary post (7) inserted into the guide groove (15)
15), and by a pressing/driving mechanism (not shown), the vertical post (6) is positioned and fixed at a position where it abuts the vertical post catcher (11), and at the same time is wound around the rotating drum (3). magnetic tape (4)
The tilted post (9) that defines the incident angle of is positioned and fixed in contact with the tilted post catcher upper part (12) and the tilted post catcher lower part (13) which are shaped like the letter .

[Problems to be Solved by the Invention] Since the conventional positioning structure for the vertical post and the inclined post during loading is configured as described above, the upper part of the inclined post catcher (l2) and the lower part of the inclined post catcher (l3) The drum base (2
), the processing process becomes complicated, and when molded integrally by injection molding, the molding die becomes complicated.

In addition, these three positioning parts are difficult to achieve accuracy.
Since it is based on a combination of a character-shaped groove and a cylinder, there is also a problem in that the accuracy of the angle of incidence of the magnetic tape on the rotating drum during mass production varies greatly.

This invention was made to solve the above problems, and provides a vertical post and inclined post positioning structure that is easy to manufacture, allows highly accurate positioning, and reduces variation in the angle of incidence of the magnetic tape onto the rotating drum. The purpose is to obtain.

[Means for Solving the Problems] The vertical post and inclined post positioning structure according to the present invention uses one catcher formed in a ■ shape to position the vertical post with two contact surfaces, and the inclined post has the above-mentioned positioning structure. A plane that extends one side of one catcher, with two upper and lower sides.
It is characterized by a structure in which positioning is performed by abutting at a certain point.

[Function] The positioning of the vertical post and the inclined post in this invention is such that the vertical post abuts at two points with a vertical post catcher formed in a V-shape on two planes, and the inclined post abuts on one of the two planes. The upper part of the slanted post and the lower part of the slanted post, which are formed by a flat surface, come into contact with each other at two points, and rotation in the tilt direction and the burn direction is regulated and the position is fixed.

Therefore, since the vertical post and the inclined post are positioned with one catcher formed in a V-shape on two planes, variations in the angle of incidence of the magnetic tape on the rotating drum are reduced, and the processing of the catcher is facilitated. becomes.

[Embodiments of the invention] An embodiment of the present invention will be described below.

Fig. 1 is a partially enlarged plan view showing the state of main parts of this embodiment during loading, Fig. 2 is a side view taken along line n-n in Fig. 1, and Fig. 3 is a view taken along line III-III in Fig. 2. FIG. 4 is a side view taken along the line IV--IV in FIG. 1.

In this embodiment, the inclined post (9) is connected to the leading guide (5).
It differs from the conventional example in that it is directly planted in the (5
a) is a rod rotatably supported by the leading guide (5), (l1) is a vertical post catcher, and a drum base (
2) is formed in a V-shape with a vertical post (6) and two points A,
Abutting and positioning at B, (lla) is the first abutment surface on the right side of the vertical post catcher (11), (llb) is the second abutment surface on the left side of the vertical post catcher (l1), (
12) is the upper part of the inclined post catcher formed on the extended plane of the first contact surface (lla), and (l3) is the lower part of the inclined post catcher similarly formed on the drum base (2); in this embodiment, , the vertical post (6) and the guide roller (14) are constructed with the same diameter.

Also, in Fig. 4, (16) is an upper abutting part formed on the leading guide (5), and (l7) is a lower abutting part (l8) formed on the leading guide (5). The auxiliary abutting portion formed on the drum base (2) is a third abutting surface formed on the drum base (2).

Next, we will explain the operation. In FIG. 7, the leading guides (5
), the magnetic tape (4) is suspended by a guide roller (14) to form a predetermined tape path as shown, and is positioned and fixed.

This positioning and fixing operation is performed by a pressing/driving mechanism using a rod (5
This is done by applying a setting force to a) in the direction of the arrow. That is, the vertical post (6) has the l-th contact surface (
lla) and the second contact surface (llb) at points A and B, respectively, and the inclined post (9) contacts the upper part of the inclined post catcher (12) and the lower part of the inclined post catcher (l3) at points C and D, respectively. The upper contact portion (l6) contacts the third contact surface (l9) at point E, the lower contact portion (l8) contacts the upper surface of the substrate (1) at point F, and a total of 6 It is achieved by balancing the forces at two points. At this time, the auxiliary contact part (l8) enters the guide groove (l5), so
It does not come into contact with the substrate (1).

When such a catcher part is formed integrally with the drum base (2), for example, when the drum base is manufactured by cutting, as shown in FIG. After cutting the top surface of the drum base, the second contact surface (ll
b) , M1 contact surface (lla), upper part of inclined post catcher (l2), lower part of inclined post catcher (l
3) Can be cut.

That is, by finishing each contact surface in the same process, this required accuracy can be sufficiently ensured.

In addition, when this drum base (2) is formed by injection molding, the mold can be configured to be separated only in the vertical direction, as shown in Figure 6, and the side core, slide core, etc. Since each contact surface can be formed without using the mold, variations between lots and dimensional changes due to an increase in the number of shots of the mold are extremely small, and the cost of the mold can be reduced.

In addition, in the above embodiment, the supply side (
The leading guide (5) located on the left side of the rotating drum (3)
), but the winding side of the magnetic tape (4) (
The leading guide (5) located on the right side of the rotating drum (3)
), or other travel guides using a combination of guide rollers and inclined posts.

In addition, in the above embodiment, each contact surface is connected to the drum base (2).
Although an example is shown in which the drum base is integrally formed with the base plate (1), it may be formed integrally with the base plate (1), or the portion that the lower contact portion (17) comes into contact with may also be formed integrally with the drum base (2). , the same effects as in the above embodiment can be obtained.

[Effects of the Invention] As described above, according to the present invention, the vertical post is received and positioned by the two surfaces of one catcher formed in a V shape with two planes, and the inclined post is positioned on one of the catcher's two surfaces.
Since the magnetic tape is configured to receive and position the magnetic tape at two locations, upper and lower, using an extended plane, it is easy to manufacture and has the effect of providing a positioning mechanism with high precision in the angle of incidence of the magnetic tape.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the configuration of essential parts of an embodiment of the present invention, FIG. 2 is a side view taken along the line II--III in FIG. 1, and FIG. 3 is a side view taken along the line III--III in FIG. Figure 4 is the first
FIG. 5 is a plan view showing the manufacturing method of the drum base of this embodiment, and FIG. 6 is a side view of the mold for forming the drum base of this embodiment. 7 is a plan view for explaining the operation of the loading device of the magnetic recording and reproducing device; FIG. 8 is a plan view showing the conventional positioning structure of vertical posts and inclined posts; FIG. 9 is a sectional view corresponding to the line; 8 is a side view taken along the line IX-IX in FIG. 8. (3)...Rotating drum, (4)...Magnetic tape, (
6) Vertical post, (9) Inclined post, (1
1) Vertical post catcher, (l2) Upper part of inclined post catcher, (13) Lower part of inclined post catcher. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] (1) A loading operation in which a magnetic tape is pulled out from a tape cassette by a vertical post and an inclined post that cooperate with each other and loaded onto a rotating drum, and the vertical post and inclined post are positioned and held fixed, and the loaded magnetic tape is The loading device performs an unloading operation of accommodating the vertical post and the inclined post in the tape cassette, and the positioning of the vertical post and the inclined post at the time of loading is performed by a single V-shaped catch part, and the vertical post is A loading device characterized in that the inclined post is positioned by abutting on two V-shaped planes, and the inclined post is abutting on one plane at two places, upper and lower.