JPH04268242A - Cartridge loading mechanism of disk drive - Google Patents

Abstract

PURPOSE:To provide the cartridge loading mechanism which can make width of a disk small by forming a clearance between a side face of a cartridge holder and a side face of a chassis as small as possible, without thinning the wall thickness of an ascending/descending guide member and a holder vertically operating member. CONSTITUTION:Between a side face of a cartridge holder 3 and a side face of a chassis 4 for supporting the cartridge holder 3 concerned vertically movably an ascending/descending guide member 18 for guiding ascending and descending of the cartridge holder 3 and holder vertically operating members 21, 22 of a loading plate 5 for allowing the cartridge holder 3 to ascend and descend along the ascending/descending guide member 18 concerned are placed in series in the slide direction of the loading plate 5, by which a clearance between the side face of the cartridge holder 3 and the side face of the chassis 4 is made as small as possible.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is arranged so that when a disc cartridge is inserted into a cartridge holder, the cartridge holder is lowered from an unloading position to a loading position, and the disc in the disc cartridge is placed on a turntable. The present invention relates to a cartridge loading mechanism for raising and lowering the cartridge holder in a disk drive.

0002

2. Description of the Related Art As shown in FIGS. 4 to 6, a cartridge loading mechanism for a disk drive includes a side surface 102 of a cartridge holder 101 and a side surface 104 of a chassis 103 that supports the cartridge holder 101 in a vertically movable manner. In the gap G, the lifting guide members 105...10
5 and the holder up/down operation members 107...107 of the loading plate 106 are arranged, and when the loading plate 106 is slid, the holder up/down operation members 107
. . 107 in which the cartridge holder 101 is raised and lowered along the elevation guide members 105 . . . 105 is known.

The elevating guide members 105...105 have protrusions 109...109 formed on the side surface 104 of the chassis 103, and vertical guide grooves 11 are formed in these protrusions 109...109.
It is formed by drilling 0.

Guide pins 111...111 are protruded from the side surface 102 of the cartridge holder 101, and by inserting the tips of these guide pins 111...111 into the guide grooves 110 of the elevating guide members 105...105, the guide The cartridge holder 101 moves up and down along the groove 110.

Further, the holder lifting/lowering operation members 107 . . . 107 of the loading plate 106 are connected to the lifting guide members 105 .
2, and by operating the guide pins 111...111 on the inclined surface 108, the cartridge holder 101 is raised and lowered.

112...112 is the cartridge holder 10
1 to the bottom side of the chassis 103.

[0007]

However, in the conventional cartridge loading mechanism described above, the holder lifting/lowering operating members 107, 107 of the loading plate 106 are arranged between the lifting guide member 105 and the side surface 102 of the cartridge holder 101. In other words, since the lifting guide member 105 and the holder lifting/lowering operation member 107 were arranged in parallel with respect to the sliding direction of the loading plate 101, the following problems occurred.

(1) Side surface 1 of cartridge holder 101
02 and the side surface 104 of the chassis 103, the elevating guide member 105 and the holder elevating operating member 107 are arranged in parallel in the sliding direction of the loading plate 106. The gap G must be greater than the sum of the wall thickness t2 of become. (For example, the width of the cartridge used in the present invention is 94 m.
m, and the width of a 3.5" FDD MO cartridge is 90 mm. Therefore, using a 94 mm width cartridge, a 3.5" HH drive (width 101.6 mm)
is difficult to design. ) (2) In order to narrow the width of the drive, it is possible to reduce the thickness of the lifting guide member 105 and the holder lifting/lowering operation member 107, but reducing the thickness of these members will reduce the necessary mechanical strength. It becomes impossible to keep it.

The present invention solves the above-mentioned conventional problems and reduces the gap between the side surface of the cartridge holder and the side surface of the chassis as much as possible without reducing the thickness of the lifting guide member or the holder lifting/lowering operation member. The purpose of this invention is to provide a cartridge loading mechanism that allows the width of the disc to be reduced.

0010

[Means for Solving the Problems] An elevating guide member and a holder elevating and lowering operating member for a loading plate are disposed between a side surface of a cartridge holder and a side surface of a chassis that supports the cartridge holder in a movable manner; In the cartridge loading mechanism of a disk drive, when the loading plate is slid, the cartridge holder is moved up and down along the up/down guide member on the inclined surface of the holder up/down operation member. The members were arranged in series in the sliding direction of the loading plate.

[0011]

[Operation] Since the lifting guide member and the holder lifting/lowering operation member are arranged in series in the sliding direction of the loading plate,
Since the wall thickness of either the lifting guide member or the holder lifting/lowering operation member is absorbed by the wall thickness of the other, the gap between the side surface of the cartridge holder and the side surface of the chassis is reduced accordingly, and the drive can be easily moved. The width can be reduced and the drive can be made smaller.

0012

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

In the embodiment, the operation of inserting the disc cartridge into the cartridge holder is referred to as insertion, and the operation of lowering the cartridge holder to mount the disc of the inserted disc cartridge on the turntable is referred to as cartridge loading. The operation of raising the cartridge holder to remove the disk and disk cartridge from the cartridge is called cartridge unloading, and the operation of pulling out the disk cartridge from the cartridge holder is called ejecting.

FIG. 1 is an exploded perspective view of a disk drive equipped with a cartridge holder loading mechanism of the present invention. In the figure, 1 is a disk drive, and when a disk cartridge 2 is inserted into a cartridge holder 3, the cartridge holder 3 is loaded by a loading plate 5 that is slidably attached to a chassis 4, and the disk drive 1 is loaded onto the chassis 4 by a loading plate 5 that is slidably attached to the chassis 4. The disk 7 in the disk cartridge 2 is loaded onto a turntable (spindle) 6 provided at From a nearby position (referred to as a dynamic head loading position), the upper head 9 and the lower head 10 are moved at low speed.
The upper and lower heads 9 and 10 are brought into contact with the upper and lower surfaces of the disk.

Recording and reproduction are performed by moving the upper and lower heads 9 and 10, which are in contact with the upper and lower surfaces of the disk 7, by a head traveling mechanism 11.

A shutter opening/closing lever 13 is rotatably attached to the top plate 12 of the cartridge holder 3, and lifting pins 15 are provided at the front and rear ends of both left and right sides 14 of the cartridge holder 3. 16, a guide pin 17 is provided in the center.

The guide pin 17 is connected to a lifting guide member 18 provided at the center of both left and right sides of the chassis 4.
The cartridge holder 3 is inserted into the guide groove 19 of the chassis 4, and the cartridge holder 3 is vertically raised and lowered along the guide groove 19. has been lowered to

Further, the front and rear ends of both left and right sides of the loading plate 5 correspond to the lift pins 15 and 16 provided at the front and rear ends of both left and right sides 14 of the cartridge holder 3, respectively. Members 21 and 22 are provided. The elevating guide member 18 is arranged between these holder elevating and lowering operating members 21 and 22, and these holder elevating and lowering operating members 21 and 22 and the elevating and lowering guide member 18 are arranged in series in the sliding direction of the loading plate 5. It has become.

When the disk cartridge 2 is inserted into the cartridge entrance/exit port 23 of the cartridge holder 3, the shutter pin engaging recess 2 of the shutter 24 slidably attached to the disk cartridge 2 is inserted.
5, one end side (free end side) of the shutter opening/closing lever 13
The shutter pin 26 attached to the shutter pin 26 is fitted, and the shutter opening/closing lever 13 opens the shutter 24 while rotating in the cartridge insertion direction (clockwise in FIG. 1) about the shaft 27 at the other end.

When the disk cartridge 2 is inserted to a predetermined position, the trigger lever 29 of the shutter opening/closing lever locking mechanism 28 is pressed on the front side of the disk cartridge 2 and rotated clockwise. The lock lever 30, which had been prevented from rotating clockwise by the lock lever 29, rotates clockwise, and the lock lever 3
The lock pin engaging portion 31 provided at the shutter pin 2
6 to prevent the shutter opening/closing lever 13 from rotating back, and by clockwise rotation of the lock lever 30, the motor 33 for driving the loading plate is activated. The switch is turned on.

When the motor 33 is turned on, a rotary cam plate 38 for disk loading rotates in one direction via a rotation transmission mechanism 37 consisting of a belt 34, a pulley 35, a group of reduction gears 36, etc.

When the rotary cam plate 38 rotates, a plate operating lever 41 having a cam groove fitting pin 40 provided on the lower surface of the central portion is fitted into a cam groove 39 provided on the upper surface for operating the loading plate. The loading plate 5 is rotated clockwise in FIG. 1 about the shaft portion 42 on one end side, and the loading plate 5 is rotated in the direction shown by the arrow in FIG. When the cartridge holder 3 is slid in the A direction, the cartridge holder 3 is lowered by the inclined surfaces 44 of the holder lifting/lowering operation members 21 and 22 provided at the front and rear ends of the left and right sides of the loading plate 5, and is housed in the cartridge holder 3. The positioning pin 45 provided on the chassis 4 is fitted into the positioning pin insertion hole (not shown) provided on the disk cartridge 2, and
A disk 7 in a disk cartridge 2 is placed on a turntable 6.

An unloading position support surface 46 for holding the cartridge holder 3 at the cartridge unloading position is provided on the upper end side of the inclined surface 44 of the holder lifting/lowering operation members 21 and 22, and an unloading position support surface 46 is provided on the lower end side of the inclined surface 44. A loading position support surface 47 is provided to hold the cartridge holder 3 at the cartridge loading position, and when the loading plate 5 is slid in one direction, the inclined surface 44 allows the lifting pins 15 and 16 to be moved.
slides down to the loading position support surface 47 and the cartridge holder 3 is supported at the loading position, and when the loading plate 5 is slid in the other direction, the inclined surface 44
As a result, the lifting pins 15 and 16 are pushed up to the unloading position support surface 46, and the cartridge holder 3 is supported at the unloading position.

[0024]

[Effects of the Invention] The cartridge loading mechanism of the disk drive of the present invention has the above-described structure, and the elevating guide member and the holder elevating and lowering operation member are arranged in series in the sliding direction of the loading plate. It has the effects described below.

(1) Either one of the thickness of the lifting guide member and the thickness of the holder lifting/lowering operation member is absorbed into the thickness of the other, so that the side surface of the cartridge holder and the side surface of the chassis are By reducing the gap, the width of the disk drive can be reduced.

(2) The width of the disk drive can be reduced without reducing the thickness of the elevating guide member or the holder elevating and lowering operation member, and therefore without impairing the mechanical strength of these members.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a disk drive equipped with a cartridge loading mechanism of the present invention.

FIG. 2 is a plan view of the assembled state.

FIG. 3 is a sectional view of main parts.

FIG. 4 is an exploded perspective view of a conventional example.

FIG. 5 is a plan view of a conventional example.

FIG. 6 is a sectional view of a conventional example.

[Explanation of symbols]

1...disk drive, 3...cartridge holder, 4...
Chassis, 5... Loading plate, 18... Lifting guide member, 21, 22... Holder lifting/lowering operation member.

Claims (1)

[Claims] 1. An elevating guide member and a holder elevating/lowering operating member for a loading plate are disposed between a side surface of a cartridge holder and a side surface of a chassis that supports the cartridge holder in a movable manner, and the loading plate is moved up and down. In the cartridge loading mechanism of a disk drive, the cartridge holder is moved up and down along the up/down guide member on the inclined surface of the holder up/down operation member when slid, and the up/down guide member;
A cartridge loading mechanism for a disk drive, characterized in that a holder lifting/lowering operating member is arranged in series in the sliding direction of a loading plate.