JPS60226063A - Recording disk loading 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 TECHNICAL FIELD The present invention relates to an apparatus for loading a recording disk, such as a magnetic disk, into a reproducing and recording state.

``Prior Art and its Problems'' A magnetic disk consists of a disk-shaped recording disk body, a jacket covering the body, and a shaft portion of the recording disk body that is exposed to the medium heat part of the jacket. The jacket has a head hole and a pad hole on the front and back sides of the jacket. In the loading state, this magnetic disk runs stably with its driven part connected to the spindle of the drive top, one side of the recording disk body being used for reproduction and recording through the head hole, and the other side being used for reading and recording through the pad hole. The pads are brought into contact with each other.

Generally, this magnetic disk loading device has a structure in which a magnetic disk insertion/removal section is provided in an openable/closable load case, and after a disk is loaded into this insertion/extraction section, the case is closed to enter a loading state. However, when the disk is inserted or removed, the running stability pad supported by the road case must be retracted to a position where it does not come into contact with the recording disk.

In addition, in order to bring the driven part into proper contact with the spindle of the drive motor, the load case is provided with a chucking member that presses the driven part toward the drive motor during the loading process. Conversely, it is necessary to retreat from the driven part after loading is completed.

Conventionally, the forward and backward movement of the stable running pad and the chucking member has been controlled by electromagnetic means such as a solenoid, which inevitably increases the number of parts, complicates the structure, and increases cost.

Furthermore, if you try to control the forward and backward movement of the stable running pad and the chucking member by making it move with the opening/closing operation of the load case, it is especially difficult to link the retracting operation of the chucking member from the driven part with the opening/closing operation of the load case. This is difficult and has a negative effect on the rotation of the recording disk.

``Object of the Invention'' The present invention solves these conventional problems and provides stable running pads without the need for special advance/retreat control means such as solenoids, and without interlocking with the opening/closing operation of the load case. An object of the present invention is to obtain a device capable of controlling the forward and backward movement of a chucking member.

"Structure of the Invention" The present invention is characterized in that the forward and backward movement of the stable running pad and the chucking member is not linked to the opening/closing action of the load case itself, but is linked to the movement of the locking member that locks the load case in the loading position. This idea was developed based on the idea that a magnetic disk load case supports a locking member that is movable relative to the load case and locks or releases the funnel case in a loading position depending on the movement position. The case further includes a chucking member having a chuck part that can come into contact with and separate from the driven part of the loaded recording disk, and a stable running bar that can also come into contact with and separate from the recording disk body through the pad hole of the loaded recording disk. , a pad support having a pad support between the locking member, the chucking member and the pad support
The present invention is characterized in that an interlocking mechanism is provided that moves the chucking member and the pad support toward and away from the driven portion of the recording disk and the recording disk body, respectively, in conjunction with the movement of the locking member.

"Embodiments of the Invention" The present invention will be described below with reference to illustrated embodiments. In this embodiment, the loading direction of the magnetic disk is the vertical direction, and the disk insertion/removal direction is the horizontal direction. The load case 11 is supported so as to be movable up and down, and the case opening spring 1
2, it is urged to move upward. This road case 11
The vertical movement may be not only a linear vertical movement but also a vertical movement by swinging around a pivot. Below the load case 11,
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吋 h 鋺J 14 motor 13, to record and playback rad 14,
A magnetic disk support post 15, 16, a pad support post 17, and a pair of lock plates 18, 18 are provided as fixing members. 13a is the rotation shaft 1 of the drive motor 13
3b is a spindle integrally provided.

The load case 11 has an insertion/removal section 21 for the magnetic disk 20 formed in its lower part. The magnetic disk 20 has a magnetic disk body 20a, a driven portion 20b integrally provided at the center of the magnetic disk body 20a, and a jacket 20c that covers the front and back of the magnetic disk body 20a. A head hole 20d corresponding to the playback pad 14 and a pad hole 20e corresponding to the stable running pad 30 are open.

The insertion/removal portion 21 of the load case 11 directly supports the jacket 20c of the magnetic disk 20, and the lower end of the load case 11 is bent inward to form a jacket receiving hook 22.

When the o-H' case 11 is raised to the unloading state (PA state), the magnetic disk 20 can be inserted into and removed from the insertion/removal portion 21 from the lateral direction perpendicular to the plane of the drawing.

On the back side of the load case 11, each pair of support pieces 11a,
11a, flb, llb, and a pair of suspension pins l
lc and llc are fixed hanging down. Support piece 11a, 1
A shaft 23 is fixed to each of the shafts 1a, and an interlocking lever 24 is pivotally connected to the shaft 23, respectively. support piece flb,
A chucking lever 25 is pivotally supported by a shaft 26 on the chucking lever 25, and one end driving head 24a of the interlocking lever 8-24 is located above the free end of the chucking lever 25. The chucking lever 25 has a pair of left and right chuck parts 25a that can come into contact with the driven part 20b of the magnetic disk 20, and an unloading spring 27 causes the chuck parts 25a to move away from the magnetic disk 20. energized.

Further, the suspension pins 11c and 11c are connected to the pad support plate 2.
A compression spring 29 inserted between the back surface of the load case 11 and the top surface of the pad support plate 28 is fitted on the outside of the spring 8 to move the pad support plate 28 downward. It is energizing. This pad support plate 28 integrally has a stable running pad 30 on a portion of its lower surface. This pad support plate 28 can pass through the pad hole 20e and be moved toward and away from the magnetic disk body 20a. This pad support plate 28 has interlocking surfaces 28a, 28a projecting on both sides, and the interlocking surfaces 2
The other end drive head 24 of the interlocking lever 24 is attached to the lower surface of the interlock lever 8a.
b can come into contact with it.

In the unloading state shown in FIG. 2, the movement lever 24 pushes up the pad support plate 28 with its drive head 24b against the force of the compression spring 29, and at the same time
4a pushes down the chucking lever 25 against the force of the unloading spring 27 to lower the chuck portion 25a to the contact position with the driven portion 20b. When this is swung counterclockwise from the state shown in Fig. 2, the drive head 2
4b separates from the back surface of the pad support plate 28, and the pad support plate 28 descends from the corner of the compression spring 29. At the same time, the drive head 24a separates from the chucking hole / The load case 11 is rotated clockwise by the force of the unload spring 27.The lock lever 40 of the load case 11 performs rotation control of /<-24 in this interlocking manner.

The lock lever 40 has a lock release operation part 40a located outside the load case 11, and a load.

It has a U-shape that integrally includes a pair of sliding arms 40b inserted into the load case 11 from the sliding hole lid of the case 11. A horizontal guide groove 40c is formed in each of the sliding arms 40b, and this guide groove 40
The shaft 23 fixed to the support piece 11a is fitted in the shaft 23 so as to be relatively movable, so that the lock lever 40 can be moved laterally.

The mtJJ arm 40b also has interlocking leno<-24,
: When the lock lever 40 is pushed in the direction of arrow B as shown in Fig. 2, the cam groove 40 into which the protruding drive pin 24c is inserted is , the parallel groove 40e allows the interlocking lever 2
4 in the state shown in FIG. 2, and when the lock lever 40 moves in the direction of arrow A as shown in FIG.
Interlocking with Of, /<-24 is rotated counterclockwise from the state shown in FIG.

When transitioning from the state shown in FIG. 4 to the state shown in FIG. 2, the situation is the opposite of t± or more. In the illustrated example, a guide groove 40c and a cam groove 40d
are consecutive, or both can be set separately.

A lock pin 41 is fixed to the sliding arm 4 Ob & of this lock lever 40, and to this lock pin 41,
One end of a lock spring 42 supported by the main body of the reproducing/recording apparatus is hooked to urge the lock pin 41, that is, the lock lever 40, to move in the direction of the arrow in the figure. When the funnel case 11 is pushed to the loading position and closed, the lock lever 40 moves in the direction of arrow A by the force of the lock spring 42, and the lock pin 41 enters the lower surface of the lock surface 18a of the lock plate 18. ing.

In this device having the above configuration, when the lock lever 40 is pushed in the direction B using the lock release operation part 40a and the lock bin 41 is disengaged from the lock surface 18a of the lock plate 18, the case is opened as shown in FIG. The load case 11 rises due to the force of the spring 12 and enters an unloading state (open state). At this time, the lock pin 41 contacts the lock release surface 18b of the lock plate 18 and is prevented from returning to the entry direction, that is, the lock direction. Lock lever 40
The cam groove 40d is parallel to the drive pin 2
4c, and as a result, the drive head 24b pushes up the pad support plate 28 and easily holds the running pad 30 at a non-interfering position (retracted position) with the magnetic disk 20, and at the same time, the drive head 24a moves the chucking lever. /<-25 and press down to release the chuck part 25a of the chuck and king lever 25.
is brought closer to the magnetic disk 20 side. At this time, the amount by which the chuck part 25a approaches the magnetic disk 20 side is such that the distance from the driven part 20b is as small as possible within a range that does not prevent the insertion and removal of the S1 disk 20 into the insertion/removal part 21. It is set as follows.

In this state, when the magnetic disk 20 is inserted into the insertion/removal portion 21 and the load case 11 is then pressed downward, the state shown in FIG. 3 is obtained. In the state shown in FIG. 3, the lock bin 41 has descended along the lock release surface 18b of the lock plate 18, and the lock lever 40 has not yet moved in the direction of arrow A. At this time, the jacket 20c of the magnetic disk 20
is regulated at its lower end by coming into contact with the magnetic disk support columns 15 and 16, and is separated from the jacket support hook 22 of the load case 11 by a small gap C. The chuck portion 25a of the chucking lever 25 presses the driven portion 20b of the magnetic disk 20 downward with this clearance C, and securely inserts it into the spindle 13a of the drive motor 13. In this state, the reproducing/recording nozzle 14 passes through the head hole 20d of the magnetic disk 2o and comes into contact with the magnetic disk body 20a. However, the stable running pad 30 remains retracted to a position where it does not interfere with the magnetic disk 20.

Completely loading funnel case 11 (closed position)
When pushed in, the lock pin 41 of the lock lever 40 moves along the lower surface of the lock surface 18a of the lock plate 18. In other words, the lock lever 40 moves in the locking direction A by the force of the lock spring 42 and is guided by the sliding hole lid and the guide groove 40c, resulting in the state shown in FIG. 4. In the process of moving the lock lever 40, the interlocking lever 24
The driving pin 24c changes the contact surface with the cam groove 40d from the parallel groove 40e to the inclined groove 40f, so that the interlocking lever 24, which is indirectly pushed by the compression spring 29,
Rotate counterclockwise from the state shown in Figure 3. Interlocking lever 2
4 rotates counterclockwise, the drive pin 24c is lowered, and the bat support plate 28 is lowered by the force of the compression spring 29. In the lowered position of the stable running pad 30, the pad support column 17 is in contact with the back surface of the bat support plate 28;
The stable running pad 30 passes through the pad hole 20e and comes into contact with the surface of the magnetic disk body 20a with appropriate contact pressure.

Also, the driving head 24a of the interlocking part 8-24 moves upward to allow the chucking lever 25 to rotate upward by the force of the unloading spring 27, so that the chuck part 25a is moved away from the driven part 20b. It is moved away and does not interfere with the subsequent rotation of the driven portion 20b by the drive motor 13, that is, the rotational drive of the magnetic disk body 20a.

To remove or replace the magnetic tape 20,
It is sufficient to push the lock release operation part 40a of the log lever 40 in the unlock direction B from the state shown in FIG. lock bin 4
1 is removed from the lock surface 18a of the lock plate 18, the load case 11 rises and returns to the state shown in FIG. During the push-in process of Lockle A-4Q, one or more reverse movements occur. In other words, before the load case 11 rises, the stable running pad 30 approaches the driven part 20b like the third father, and Thereafter, the unloading state shown in FIG. 2 is reached. Therefore, the magnetic disk 20 can be inserted and removed smoothly.

Effects of the Invention J As described above, the present invention enables the stable running pad to approach and separate from the recording disk, and the chucking member to move the magnetic disk in conjunction with the operation of the row 2 lever that holds the load case in the loading state. Because it connects and disconnects from the driven part, the configuration can be simplified compared to conventional devices of this type that require a special electrical drive mechanism.Also, the opening and closing operations of the load case itself can be simplified. Since they are not interlocked, a loading device with stable operation that is not affected by the movement of the load case can be obtained.

[Brief explanation of drawings]

The figures show an embodiment of the recording disk loading device of the present invention, in which FIG. 1 is a sectional view taken along the line I-I in FIG. 4, and FIGS. 4 is a cross-sectional view taken along the line mm--m in FIG. 1, showing an operating state different from that in FIG. 3. 11... Road case, 12... Case opening spring,
12... Drive motor, 14... Reproduction/recording head, 1
5... Magnetic disk support post, 17... Par 2 support post 17.18... Lock plate, 20... Magnetic disk, 20a... Magnetic disk body, 20b...
Driven part, 20C... Jacket, 20d... Head hole, 20e... Pad hole, 21... Insertion/removal part, 22
...Jacket Ukefu, Ri, 24...Interlocked 8-1
25...Chucking lever 8-125a...Chuck part, 28...Pad support plate, 30...Stable running bar 2 door, 40...Lock lever-141...Lock pin, 42...Lock Spring. Patent applicant: Asahi Optical Industry Co., Ltd. Agent: Kunio Miura

Claims (1)

[Claims] (1) A magnetic disk loading device that has a magnetic disk body that has a driven part driven by a drive motor in the center, and a jacket that covers the magnetic disk body and has a head hole and a pad hole on the front and back sides. , a magnetic disk load case that can be moved toward and away from the drive motor is provided, and is movable relative to the load case,
A chucking member that supports a locking member that locks or releases the load case in a loading position depending on the movement position, and further has a chuck part that can move toward and away from the driven part of the loaded recording disk. and a pad support having a stable running pad that can come into contact with and separate from the recording disk body through the pad hole of the loaded recording disk, and the locking member, the chucking member and the bar 1. A recording device characterized in that the support body is provided with an interlocking mechanism that moves the chucking member and the pad support toward and away from the driven portion and the recording disk body, respectively, in conjunction with the moving operation of the locking member. Disc loading device.