JPH0434759A - Magnetic recording medium inserting and ejecting device - Google Patents

Abstract

PURPOSE:To correct deflection of a magnetic recording medium by varying the magnitude and the direction of a force exerted to a roller in rolling contact on a continuous guide slot provided to a magnetic recorder in horizontal and vertical directions depending on a position of the roller on a belt. CONSTITUTION:In order to align a magnetic recording medium 1 in the vertical direction with respect to a chassis 4 when the magnetic recording medium 1 is set to an operation enable position of a magnetic recorder, a step difference 8a is provided to a positioning pin 8. When the magnetic recording medium 1 supported in a holder 3 is inserted to the magnetic recorder against a horizontal force F to the chassis 4, rollers 2, 7 are in rolling contact at a point B to have a belt 6 in between. When they pass the point B, the force F exerting to the roller 2 acts on the chassis 4 in the vertical direction, the magnetic recording medium 1 is moved to the operation enable position of the magnetic recorder and supported by the step difference 8a of the positioning pin 8 and pressed and supported to the chassis 4 by the force F in the vertical direction. Thus, a deflection of the magnetic recording medium is sufficiently corrected.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention moves the magnetic recording medium to an operable position in the magnetic recording device when it is inserted, and moves it to a removable position when ejecting the magnetic recording medium. The present invention relates to a moving magnetic recording medium insertion/ejection device.

[Conventional technology]

When a magnetic recording medium is inserted, it moves to the operable position of the magnetic recording device, and when the magnetic recording medium is ejected, it moves to the ejectable position.The conventional magnetic recording medium insertion/ejection device moves against the chassis of the magnetic recording device. A slide plate that is restrained from vertical movement and movable horizontally relative to the chassis, which is the insertion and ejection direction of the magnetic recording medium, and a stopper installed on the chassis while supporting the magnetic recording medium prevent horizontal movement relative to the chassis. restrained,
The magnetic recording medium is configured to include a holder that moves on a sloped guide provided on a slide plate in the insertion and ejection direction of the magnetic recording medium, and a spring that attracts the slide plate and the holder to each other.

In the conventional magnetic recording medium insertion/ejection device configured as described above, when the magnetic recording medium is inserted, the magnetic recording medium moves together with the holder on a guide on an inclined surface provided on the slide plate. At this time, the magnetic recording medium is moved along with the holder only in a direction perpendicular to the chassis by a stopper and a slide plate provided on the chassis, and is set in an operable position of the magnetic recording device.

When the magnetic recording medium is ejected, the magnetic recording medium is moved horizontally by an external force by pressing the medium number ratio button provided on the magnetic recording device. It moves together with the holder while its horizontal movement relative to the chassis is restricted by the stopper.

At this time, the magnetic recording medium moves along with the holder in a direction perpendicular to the chassis, and is also moved to a position where it can be taken out from the magnetic recording device by the force of a spring provided on the magnetic recording medium. There is.

[Problem to be solved by the invention]

As mentioned above, the conventional magnetic recording medium insertion/ejection device is
The slide plate and holder are attracted to each other by the force of the spring, and when the holder is moved, the inclined surface of the slide plate is used as a guide, so the horizontal component of the spring tension on the chassis when the magnetic recording medium is inserted. Most of the force is distributed in the horizontal direction, and only a small amount in the vertical direction, and the magnetic recording medium is held in the vertical direction with respect to the chassis in the operable position of the magnetic recording device. Since there is no sufficient pressing force against the magnetic recording medium, this is accomplished only by restricting movement of the holder in the vertical direction with respect to the chassis by guide grooves provided in the slide plate. For this reason, there is a drawback that the deflection of the magnetic recording medium cannot be sufficiently corrected.

[Means to solve the problem]

The magnetic recording medium insertion/ejection device of the present invention includes a holder that supports a magnetic recording medium, four first rollers attached to the holder, and four rollers that roll simultaneously with the four first rollers. a second roller; a flexible belt that moves while being held between the first roller and the second roller;
A frame provided on the chassis and having a guide groove that guides the magnetic recording medium supported by the holder to a movable position 1 of the magnetic recording device when the first roller and the second roller roll. and a positioning pin having a stepped portion for vertically positioning the magnetic recording medium with respect to the chassis when the magnetic recording medium is set in an operable position of the magnetic recording device.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing the state of the magnetic recording medium according to the embodiment of the present invention when it is ejected, FIG. 2 is a perspective view showing the state when the magnetic recording medium of the embodiment of FIG. 1 is inserted, and FIG. The figures are a plan view showing the operation of the main parts of the embodiment in Figure 1, Figures 4(a) and (
b) and (C) are plan, front and side views showing details of the belt of the embodiment of FIG. 1;

As shown in FIGS. 1 to 4, this embodiment includes a holder 3 that supports a magnetic recording medium 1 and has four rollers 2 on its side, a frame 5 provided on a chassis 4, and a frame 5 that supports a magnetic recording medium 1. A flexible belt 6 is stretched with an appropriate tension in the guide groove 5a of the
and the guide 71!5 along with the roller 2 via the belt 6.
It is equipped with four rollers 7 that roll on a. Further, when setting the magnetic recording medium 1 in the operable position of the magnetic recording apparatus, the positioning bin 8 is provided with a stepped portion 8a in order to position the magnetic recording medium 1 in the vertical direction with respect to the chassis 4.

Next, the operation of the above embodiment will be explained.

The magnetic recording medium 1 supported by the holder 3 is placed on the chassis 4
When the roller 2 and the roller 7 are inserted into the magnetic recording apparatus (in the direction of the arrow) against the force F in the horizontal direction (in the direction of the arrow H), the rollers 2 and 7 roll to sandwich the belt 6 at a point B. After passing point B, the force F acting on the roller 2 acts perpendicularly to the chassis 4 (in the direction of arrow P), and the magnetic recording medium 1 moves to the operable position of the magnetic recording device, and the magnetic recording medium 1 moves to the step part of the positioning bin 8. It is supported by the chassis 8a and is pressed and held by the force F in the vertical direction against the chassis 4.

When the magnetic recording medium is ejected, the rollers 2 and 7 are both lifted by a force external to the magnetic recording device to a position where they support the belt 6 between points A and B, and the guide grooves 5a
When rolling along, a force F acts horizontally on the chassis 4. At this time, the rollers 2 and 7 roll in the direction of ejecting the magnetic recording medium, and the magnetic recording medium 1 supported by the holder 3 is ejected to a position where it can be taken out from the magnetic recording apparatus.

The relationship between the force F acting on the roller 2 and the specifications of other components is as follows.

The radius of the roller 7 is rl, the radius of the roller 2 is r2, the thickness of the belt 6 is h, the width of the belt 6 wound by the roller 7 is bl,
The width of the belt 6 wound by the roller 2 is bl, the Young's modulus of the belt 6 is E, and between points A and B on the roller 7, (bx>
bz), between point B and point C on roller 7
l), then F = (Eh'/12) X (bl/r22
bz/r22) holds true.

〔Effect of the invention〕

As explained above, the magnetic recording medium insertion/ejection device of the present invention can control the magnitude and direction of the force acting on the roller rolling in the continuous guide grooves provided in the horizontal and vertical directions on the belt. By making it possible to change the position of the rollers, a sufficient load can be applied to the magnetic recording medium in the perpendicular direction when the magnetic recording medium is set in the operable position of the magnetic recording device.
This has the effect of correcting the deflection of the magnetic recording medium.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the state of the magnetic recording medium according to the embodiment of the present invention when it is ejected, FIG. 2 is a perspective view showing the state when the magnetic recording medium of the embodiment of FIG. 1 is inserted, and FIG. The figures are a plan view showing the operation of the main parts of the embodiment in Figure 1, Figures 4(a) and (
b) and (c) are plan, front and side views showing details of the belt of the embodiment of FIG. 1; In the figure, 1...Magnetic recording medium, 2, 7...Roller, 3...Holder, 4...Chassis, 5... Frame, 5a... Guide groove, 6... Belt, 8... Positioning pin, 8a... Step portion.

Claims (1)

[Claims] A holder that supports a magnetic recording medium, four first rollers attached to the holder, four second rollers that roll simultaneously with the four first rollers, and the first roller. and a flexible belt that moves while being held between the second rollers, and when the first roller and the second roller roll, the magnetic recording medium supported by the holder is transferred to the magnetic recording device. a frame provided on a chassis having a guide groove for guiding the magnetic recording medium to an operable position; and a frame for vertical positioning of the magnetic recording medium with respect to the chassis when the magnetic recording medium is set in the operable position of the magnetic recording device. 1. A magnetic recording medium insertion/ejection device comprising: a positioning pin having a stepped portion for positioning the magnetic recording medium;