JPS5960757A - Magnetic disk device - Google Patents

Abstract

PURPOSE:To always position and fix assuredly a cartridge at a prescribed position of the main body of a magnetic disk device, by providing a plate spring, etc. to a cover to press the cartridge up to the prescribed position of the disk main body with the cover kept closed. CONSTITUTION:When a cover 4 is pushed backward, a holder 7 moves backward with guidance of guide grooves 10/10 and 11/11 provided to a guide member. Then a plate spring 50 attached to the cover 14 moves while pressing a cartridge A to the back side before the holder 7 is positioned at its prescribed place. Therefore, the cartridge A begins to strain when brought into contact with a housing 23 and fixed at a prescribed position while receiving backward pressure at all times. At the same time, the cartridge A is pressed to the opening parts of blast nozzles 24 and 24 by means of a plate spring 5. Then the front part of the holder 7 is pulled down, and the front side of the cartridge A touches a positioning stopper to be poitioned.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a cartridge type magnetic disk device.

[Technical background of the invention and its problems]

Generally, in cartridge-type magnetic disk devices, the percentage
6j: i'jt Since it has the advantage of making it easy to replace the disk cartridge (hereinafter referred to as the car cartridge) and making the main body of the device compact, the cartridge can be installed and removed from the front of the device (II). Front type devices are often used.

Such a magnetic disk unit 94 has conventionally been constructed as shown in FIG. 1 (cross-sectional view) and FIG. 2 (plan view). That is, first, 1 in the figure is a casing. This casing 1 is attached to, for example, a casing (not shown) of a main body of a computer so that its front surface is exposed. Inside this housing 1, a magnetic disk device i'i main body 2 is provided. 3
is the drive IRI7 mechanism, which is driven by a motor (not shown) via a drive belt 4.
♂! has been completed. This drive J':! t 14 (j 3
As shown in FIG. 2, a spindle 5 is provided along the vertical direction inside, and the upper end portion of this spindle 5 is ? -J: l
A magnetic coupling 6 (=J) is installed at the upper end of the magnetic coupling 6 protruding from the iTn.In addition, an identification magnetic disk (not shown) is connected to the spindle 5 within this drive machine (+'+4).
The installation number is included. A holder 7 is provided on one side of the one-year arm mechanism 3. This holder 7 has a frame shape with open front and rear surfaces, into which a disk-shaped cartridge A is inserted from the front side. A pair of guide plates 9.!] are provided along both sides of the holder 7. These guide plates 9, 9 are connected to the housing 1.
F = 1 has been digitized by the shout. And these instructions>
9. y are provided with front guide grooves 10, 10 and grinding guide grooves II, 11, respectively). Then, front guide rollers 72, 12 and rear guide rollers 1.9.13 are provided on both sides of the self-holding roller 7, respectively, and these front guide rollers 12, 12 and rear guide roller 13.1g are The front guide groove 10°1θ and the rear guide groove 11 of the guide plates 9,9.
11, and this holding body 7 is
(Inn, to soft 5 and along the rear guide grooves 11, 11, the front 1fij (tll) of the key body 1. ′
The lid 14 is pivotally connected to the casing via pivot arms 75, 15, and is designed to open by pivoting forward. 2r, 16 is this lid body 15 W
This is the lock fA tK that locks into the J-shaped tm. The 4i0''t arm 15.15 of this lid body 14 is connected to the retainer 1'& body 7 via a connecting link 77.17 and a cam body 18, which will be described later. When opened, the holder 7 is pulled out in conjunction with this, and when the stationary body 14 of the octopus is closed, the holder 7 is pushed backwards. The holding body 7 is also used as an operating section for pulling out two parts. and,
When the holder 7 moves rearward, the cartridge A held by the holder 7 corresponds to 1) above the 4th machine side 3, and the magnetic disk (not shown) accommodated in the cartridge A The coupling provided on the hub of the drive mechanism 3 is configured to be connected to the magnetic coupling number 6 of the drive mechanism 3. Note that a circular rod-shaped centering opening 919 is formed on the upper end surface of the spindle 5 of the 1st drive unit 41 and 9th armor, and the centering protrusion provided at the center of the 71st knob of the cartridge A can be used to open the centering part 919. The magnetic disk 919 in the cartridge A is fitted into the spindle 5 so that it is held concentrically with the spindle 5. In addition, the housing 1
A magnetic head mechanism 20 is attached to the side, and this magnetic head tVt2o is attached to the cartridge A mounted at a predetermined position.
It is provided facing the rear side of the. The magnetic head mechanism 20 is provided with a magnetic head 21, which is driven to protrude and retract by a near motor or the like, and is formed in a magnetic head insertion hole (Fig. (not shown) into the cartridge A and is configured to move along the surface of the magnetic disk in its radial direction. In addition, a positioning stopper 2 is provided protruding from the housing 1 (1111), and the positioning stopper 22 is mounted at a predetermined position.
Tsuji A was hit in response to the front side of A. And the front side of cartridge A is about this point.
2, and the rear side of this cartridge A comes into contact with a housing 23 of the magnetic head mechanism 20, and the cartridge A is positioned by this housing 23 and a positioning stock 22. . Furthermore, each housing is provided with a pair of blowing nozzles 24.24, and the opening surfaces of these blowing nozzles 24.24 are in close contact with both sides of the rear side of the cartridge A mounted in a predetermined position. The cartridge A is arranged as shown in FIG. There is. In addition, these blow nozzles 24
．． 24 is opened [■Then, the pasting seal assembly consisting of an elastic material layer, etc.'25, 25 is attached, and the cartridge A is opened.
It is constructed to maintain airtightness with the rear side of the

Next, the drawings for guiding and pulling out the holding body 7 will be explained. 1) The guide grooves 10.10 and the rear guide grooves 11.11 formed on the aforementioned guide plates 9, 9 have their front portions formed along the horizontal direction, and the horizontal portion 26.
. . , and the rear portion thereof is radially rearwardly inclined toward the direction 1 to form an inclined portion 27 . In addition, the inclined part 27 of the front guide 'trio, io
A vertical portion 28.degree. 28 is formed downward at the rear end of .degree.27. Then, the rear guide roller 1 of the holding body 7
3 and 13 are the rear guides? +” Inclined part of 1 degree 1 degree 27.27
In the case 1, which is located at the rear end and the front guide rollers 12, 12 are located at the vertical part 28, 28 of the front guides 66io, 16, the holder 7 is mounted on one side of the drive 4V+73. 'h L/ is positioned horizontally, and this holder 7
Cartridge A held at position 11 is in this state.
゛1°decision horn 22 and magnetic head j;! 41/11
A predetermined grain Hf is positioned between the 2θ housings 2 and 7,
A 4'i" is provided on the hub of the magnetic disk in the IJ Tsuji A so that the l-cassilling ring is connected to the magnetic disc ring 6 of the drive mechanism 3. Also, the front guide The rollers 12, 12 and the rear guide rollers 13, 13 are all mounted on shafts 2 protruding from both sides of the holder 70.
Bearings 3o... are taken in 9..., and collar members 31... having a larger diameter than the outer diameter of these bearings 30... are provided on both p1q of these bearings 3θ... These bearings 30...
are fitted into the front guide groove 10.10 and the rear guide groove 11.11, and these front guide structures 10.10 and rear guide f? ”j
ll, rolls along 11, and also flange tA, ? J...
・These front guide structures 1o, 1° and rear guide groove 11.1
1, these bearings 3o...
It is constructed so as to prevent it from coming off. In addition, the inner side of the rear guide roller 1.9.1.9 has a δ section 31...
・Larger diameter Kutsushiron o-17, q z , , q
z is provided. Then, the edges of the guide &9,9 are bent inward to form the stopper part 33,
3.9 is formed, and a rear guide 17Ijll is formed inside the guide plates 9, 9, and a stopper member 34 is provided opposite the front end of 11.
,．． 14 are provided protrudingly, and the upper n11 cook 11 roller, 12. ．． 92 is the e part of these strafe, 73°3
3 OJ: and stopper member, 94. ．． 14, the movement of the holding body 7 in the front and back direction is regulated by 1ΣS, and is configured to be 1" and 11."I. The cam bodies 18 and 18 are mounted on both sides of the front part of the holding body 7, respectively.
I'm being kicked. These cam bodies 18.18 are rotatably supported at the center by shafts 15 and 35 protruding from the holding body 7, and the - end thereof is an operating end, 16.
．． 36. And these operating ends 36
．． The rear ends of the aforementioned connecting links 17.17 are rotatably attached to the connecting links 17.17, and these connecting links 17.17
1) The 11 end is the pivot arm 15.15 of the lid body 14.
II, jf are movably pivoted to the upper end of the. Also,
1- The cam bodies 18, 1B are attached to the inner surfaces of the guide plates 9, 9.
Contact rollers 27 and 37 are provided corresponding to the lower portions of the rollers, respectively. At the bottom of the cam body 18°180, there is a contact roller 97. ,? 7, and the cam body 111.18 is in contact with the L surface, and the cropped end 36°36 is 4
These abutting rollers 3 when rotated to move by °2
7, 37 and push-up cam surfaces 18, 3B that push up the front part of the holding body 7 upward by the reaction force thereof, and these cam bodies 1B, Z/? protrudes downward from the bottom in a hook shape,
When the operating ends 36.36 of these cam bodies 18.18 are rotated to move rearward, the contact roller 97.37
4) a pull-down cam surface that wraps around the lower surface of the holder 7 so as to hold the holder 7 and pulls down the front part of the holder 7 by the reaction force; Furthermore, hinges 40 and 40 are formed on both sides of the front part of the holding body 7, facing the front edges of the cam bodies 18 and 18, respectively. When the bodies Ig and IR are rotated so that their operating ends 16.36 move rearward, the front edges of these cam bodies 18°18 come into contact with the strami 4 bins 40, 40, and these cam bodies 18 .18 is restricted from rotating.Furthermore, on both sides of the front part of the holding body 7, there are cam bodies 1B,
Citation lever 41.41 corresponding to the rear of Ill
has been installed. These pull n ten levers 41.41
are pivotally connected to the holder 7 by means of pins 42, 42 at their central portions, have hook-shaped portions 43° 43 formed at their lower front edges, and have upper ends protruding from the upper surface of the holder 7. . These levers 41, 41 are biased by torsion coil springs 42, 42 so as to rotate so that their lower ends move forward. In addition, 45,
Reference numeral 45 denotes a stopper t4 that restricts the forward rotation of the hook levers 41 and 41. And the above cam body IFI
, 1B are their operating ends 36. , ``16'' is rotated so as to move in the 1111 direction, ('-) the hook-shaped portions 43, 4.''j of these hook levers 41. J11// is configured to engage with the lower ends of 18, 18 and lock these cam bodies 18, 18 in that position.Furthermore, on the inner surface of the guide plates 9, 9, the hook lever 41 is provided. The engagement 11r'l!removal bottle 46 and 46 are each protruded bφ with BN centering on the upper end of the 41.And when the holding body 7 is moved rearward, its pulling nozzle j1 is・Gu-4,1,
The upper end of 41 comes into contact with these disengagement pins 46, 46 and is pushed forward 1, these are hooked, ? - The lower end portions of 41 and 41 move rearward, and the lower end of the hooked portion 43゜43 of <'7Mi;, l; and the cam body 18. It is borrowed in such a way as to make it impossible (1).

If this is a borrowed device, what about a magnetic disk device? :The cartridge can be mounted on the main body 2 from the front side, and the IfL structure of the mounting main body 2 can be made smaller as a whole during the song. However, if lj is %'J-ff'-σ]? , the magnetic disk in the cartridge is i
l-! ; It is completely positioned and fixed to the spindle 5 in li°I, but the position I on the front side of case number 1 of the cartridge is
W + “Decision stock Tsunoya 22 torii, 1lill ta)
(g) The opening 23 is removed by opening a gap that corresponds to the dimensional tolerance difference of the cartridge. Therefore, the cartridge becomes 14 and 14 by the amount of the gap, and for example, inside the cartridge. ni?Ji to blow clean 7H air) - in Le24ノ,',;-totally ili□;ii゛(b without 11, Shida h;) to suck in air from the outside, or The problem is that the magnetic 9C disk and cartridge case are not concentric, so they are in contact with each other.

Also, when you install the cartridge, if you try to install it without pushing it all the way to I, the cartridge may move up -19 to the front (Qi positioning lever J?22) or the housing 23. The disadvantage was that the tr could get into the underside and damage the cartridge and device.

[Purpose of the invention]

This invention CJ, , J: was made in view of the matter S'j.
- Cartridge type magnetic disk, 'j, l
, 'Placement: Even if the cartridge is not completely inserted into the holder and the lid is closed, the cartridge is always placed in the specified position in the main body of the device. iii Really place 11・“Can fix 1 decision”: Is it excellent? i? <25" isk device'/f.

[Invention 1 (Rei-an)] That is, in this invention, the lid body for taking the cartridge in and out of the main body of the magnetic disk device 6 is J′.
Riruru. Take this lid and close the lid.
At Ai, a leaf spring or the like is installed that operates to push the cartridge away from the main body of the disc device 7 to a predetermined position IFj. This allows the cartridge to be placed at a predetermined position on the main body of the device.
The actual position can be determined and fixed.

[One Example of Practical Application of the Invention] An example of the present invention will be described below with reference to four warm-blooded animals. rr> Figure 3 (101 IC'l) and Figure 4 (plan view) No.j Pertaining to this invention? rS'・(Indicates the configuration of the disk device, 50 is j?r body 1 body top 4 (q
It is a leaf spring that can be kicked. This plate spring 50 is provided so as to press the side surface of the cartridge A rearward and push the cartridge A into the housing 23 when the lid body I4 is closed. Note that the other configurations are the same as those in FIGS. 1 and 2 above, so the same reference numerals will be used and the explanation will be omitted.

The operation will be explained in 74. First, pull the lid 14 forward and open it, and insert the cartridge A into the holder 7 (from there).
As shown in the figure, when the lid body 4 is pressed backward (missing mark Yl), the holder 7 is moved by the guide members 8, 8 (shown in Figure 4).
Front guide fHio, 1o and rear guide groove 11.11 in
It moves backwards guided by. At this time, the leaf spring 5o attached to the χi body 14 moves while pressing the cartridge A backward before the holder 7 is settled in a fixed position.Therefore, the cartridge A comes into contact with the housing 23. Then, the cartridge A begins to be distorted and is constantly pushed to the rear until it is identified at a predetermined position.
As a result, it is pressed against the opening of the blower nozzle 24, 24 with a force of >0 and comes into close contact. And the holding body 7
The front part of the car is pulled down, and the curve of the car)
'i' comes into contact with the positioning stopper 22 (φ: 31×1), and the cartridge A is positioned at rj''.

Next, to remove the first cartridge A, first pull the lid 14 forward (arrow HIYz) as shown in FIG. As a result, the front end of the holder 7 rotates upward, and the front end T1' of the cartridge A moves to position i', above the upper end of the deciding stone 22. 7 becomes a drawer fiE'+ shape 913 in the front, and when the lid body 14 is further pulled forward, the holding body 7 is pulled out forward together with the attachment body 14. In this way, cartridge A is removed from the holder.

In this way, the cartridge A can be mounted and removed from the magnetic disk drive main body in a very easy manner. In this case, in this invention, the leaf spring 5 is attached to the lid body 14.
Since 0 is the mounting position, for example, even if the cartridge A is not fully inserted into the holder 7 and the lid 14 is closed, the leaf spring 5 degrees will cause the cartridge 8 to be fixed at the predetermined position. will be inserted until Therefore, cartridge A
It is possible to reliably prevent a situation in which the person determines the position 1 and rides on the stopper 22 or crawls under the housing 23.

Since the cartridge A is pressed against the housing 23 and positioned and fixed, the concentricity with the magnetic disk inside the cartridge A is reliably maintained, and the cartridge A
This can prevent the two from coming into contact with each other inside. Further, as described above, since the cartridge A is always pressed against the blower nozzle 24.24 with a constant force by the leaf spring 5o and mounted X1,
The part and cartridge A are in close contact with each other, preventing dust from entering the cartridge g (the outside of the main body is r).

In addition, in the second embodiment, the case where the leaf spring 50 is attached to the lid body 14 has been described, but instead of the leaf spring, a snoring means such as rubber or a coil spring may be used.

〔Effect of the invention〕

As mentioned in d) 1 above, the present invention provides that, in a cartridge-type magnetic disk device, even if the cartridge is not completely inserted into the holder and the cartridge is closed 1:3, the cartridge is always inserted! +'j l)i i/liβactually positioned at a predetermined position on the body>1! Therefore, it is possible to provide an excellent magnetic disk device in which it is possible to reliably prevent negative characteristics such as 5Q JB and Qi of the cartridge.

[Brief explanation of drawings]

Figures 1 and 2 show the configuration of a conventional magnetic disk drive. Diagrams illustrating the configuration, Figures f1 to f5, and No. 61-4 are diagrams for explaining the operation. 1... Chassis cup, 7... Holding body, 14... Hull, 50
...Temporary spring.

Claims (1)

[Claims] In a cartridge type magnetic disk device, a lid body is provided on the main body of the device so that it can be freely pulled out forward, a holder body that holds a cartridge that is inserted into the Ff main body by operating the lid body, and a holder body that holds a cartridge that is inserted into the Ff main body by operating the lid body; A guide plate that can be freely pulled out forward from the main body of the device and guides the device in a vertically movable manner; 1. A magnetic disk device comprising: a spring means that operates to press the disk to a certain position.