JPS59501134A - head lift mechanism - 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] Head lift outline Technical field This invention relates to a transducer for magnetic recording and reading. Until recently, Winchesque-type magnetic heads (with non-removable disks) Since it was used only in disk drive systems, the henotra Place it on the Tisfu (1 load: load) and release it (unload 　: Unload) necessary power) ivy. Winchesque type head for one officer system (with the advent of removable disks, 7. E. It became necessary to load or unload.

It has become sharp. Generally speaking, loading (loading) onto a magnetic disk is a moving process. It was difficult to put it on the disk that was moving. ・Wide (7) air bear 1 non-queue (- due to air (2) The combination with the bearing function (bearing function) -I was avoiding the situation. However, the small slider area of the Winchesque-shaped head In the area, it is preferable to perform the rotor' of the throat on a stationary disk, and N.

The mechanism conventionally used for loading and unloading the air head is a solenoid. The force 1 of these mechanisms is based on Control the speed of the moving heel by including a noshbonoto damper. (try). General (this...) The solenoid moves the head in one direction or The spring, controlled by the connector, powers the heel and throat in different directions. but Mechanisms that use solenoids and The main part of the party is ``Solenoid'' and ``Danoshpo Nodo'' are 1st high school songs. 7) It is true.

In addition, under the environment where the speed of the magnetic head is 3).

This invention is easy to assemble, relatively inexpensive, and extremely reliable. There are some attempts to overcome the above-mentioned drawbacks.

Invention Q, -indication The first object of this invention is to place a magnetic head on a rotatable magnetic disk. During low I- or (or unloading), be sure to keep this magnetic (The purpose of this invention is to provide a mechanism that can impart uniform motion.) The second purpose is to make the above functions relatively simple (3). This is achieved by a mechanism that is simple, easy to assemble, and reliable.

This invention is a head lift arm equipped with a magnetic head. It has an off-cent part (detour part) that is placed in contact with the attached flexure (flexible member). Attempts to achieve the above mentioned objective by using one pivot rotation amount lift salary. It is something that The lift rod, along its length, supports the rotating surface of the magnetic disk. pivoted about an axis generally coincident with or parallel to. Around this guy The lift rod is placed adjacent to the head mounting flexure by the rotation of the lift rod. The offset portion of the rod is rotated in an arc. The head mounting flexure is connected to the magnetic The entire head is preloaded to bring the head into contact with the disc. Therefore, the offset part of lift a is normally located on the head mounting flex facing the disc. The lift rod is placed on the side of the shaft and rotates in a predetermined direction. The disk mounting flexure and magnetic head are pushed in a direction away from the disk.

In this invention, a portion of the length of the head mounting flexure is generally perpendicular to the plane of movement of the head mounting flexure. It is best to use a lift rod that has an extended length and pivots at that length. preferable. The offset part that contacts the head mounting flexure is parallel to the pivot part. and contacts the head mounting flexure along its entire length. The lift rod is Preferably, a second offset portion is provided on the side of the pivot portion opposite to the first offset portion. Has a set section.

The movement along the arc t centered on the pivot axis of the lift rod causes the first offset portion to It is easy to understand that jS L/ will occur in the second offset part due to the movement. cormorant. The second offset portion is in pressure contact with the inclined edge (7) or surface.

This sloping edge or surface faces the lift rod and is located at the pivot point of the lift rod. Move in the direction perpendicular to j. The arcuate movement of the second offset part of the lift salvage is caused by the sloped edge or by movement of the surface perpendicular to the pivot axis of the lift rod.

Since the second offset portion is pressed against the inclined edge or surface, the inclined edge It is impossible for the surface or surface to be pulled in a direction 2% away from the pivot axis of lift n. , by pressing the second offset part against the lower part of the beveled edge or surface. The goal is to make the rod move in an arc around the pivot point of the rod.

In a preferred embodiment, the magnetic head is mounted on head mounting flexures on either side of the magnetic disk. If two lift bars are used, the providing a beveled edge or surface by using a beveled or conical surface; It is good.

The first and second offset portions of each lift bar pivot (5) When moving away from the magnetic head axis, the first offset section moves along an arc, and the magnetic head It is quietly brewed on a magnetic disk.

to move the inclined edge or surface back and forth in a direction perpendicular to the pivot axis of the lift ti. , linear steps for IM line displacement of rondos with sloped edges or faces attached. ・It is better to use morphs. The drive pulse speed can be changed by stethopmoke. moving an inclined edge or surface with a constant average speed that can be varied by Speed control of magnetic head when loading or unloading You can improve your abilities.

In the preferred embodiment, the pulse train to the linear step motor is provided by a microprocessor. This microprocessor is powered by a used to control the components of. Microprocessor for this mechanism Using controls eliminates or reduces the need for limit switches This provides the additional benefit of

An additional feature of the invention is that in a preferred embodiment, the magnetic head is The carriage carrying this magnetic head moves toward the magnetic disk when the magnetic head is in the (6) on one of the lift bars to prevent the There are attached parts. However, this member does not connect the magnetic head to the disk. When the lift bar is rotated to place the It will be done.

New features and improvements that we believe are characteristic of this invention, both as to its structure and method of operation. The objects and advantages of the present invention will be explained by way of example in connection with the accompanying drawings. It will be better understood from the description of the embodiments.

However, the description of the preferred embodiment and drawings are for illustration and explanation purposes only and are I especially want you to understand that this is not intended to limit clarity.

Brief description of the drawing FIG. 1 shows a preferred embodiment of the present invention used in a disk drive device. A plan view showing an example.

FIG. 2 shows an embodiment of the present invention shown in FIG. 1, with the magnetic disk partially removed. FIG.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1 in the direction of the arrow.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 3 in the direction of the arrow.

FIG. 5 is a sectional view taken along the line 5--5 in FIG. 3 in the direction of the arrow.

Figure 6 shows when the magnetic head is placed on the magnetic disk (7) FIG. 3 is a cross-sectional view similar to FIG.

FIG. 7 is a sectional view similar to FIG. 4, taken along the work line in FIG. 6 in the direction of the arrow.

FIG. 8 is a cross-sectional view similar to FIG. 5, taken along line 8-8 in FIG. g6 in the direction of the arrow.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention provides for silently mounting one or more magnetic heads on a rotatable magnetic disk. It relates to a mechanism for placing or gently lifting the disc. This head is.

A head lift arm attached to the carriage inside a disk drive device. The head is attached to a flexure (flexible member) for attaching the head. Carriage is di movement along the radial direction of the disk, which causes the head to move around the circumference of the disk. It can be located in close proximity to any of the trunks.

It is desirable to use both sides of the magnetic disk at the same time. Therefore, the implementation described below In the example, the carriage is adapted to transport two magnetic heads, with the valley head is a head mounting flexure (possible) attached to a structural member fixed to the carriage. flexible member).

These heads are placed in contact with both sides of the magnetic disk. Therefore, the following explanation In this embodiment of the present invention, both heads are loaded on both sides of the disk at the same time. ) or release (unload).

To achieve this objective, the present invention uses a lift bar that is Press the head mounting flexure. Lift Jie matches the plane of the rotating disc rotated about a parallel axis. This guy has a head lift arm. perpendicular to the plane of movement of the head lift arm when raising and lowering the head.

Each pivot-bearing lift m- has an offset section parallel to the pivot axis. ing. When Riff 1 Jie rotates around the pivot axis, this offset part forms an arc The head lift arm moves in the same direction as the head lift arm.

Head-mounted flexures are usually preloaded and remove it from the disc. If no force is applied to pull it apart, it will press against the magnetic disk. It is now possible to The force that tries to separate the head from the disk is due to the pivot force. Powered by a bearing lift. Offset part is magnetic disk surface The space between the head mounting flexure (located in this way) allows the lift rod to When the lift rod is pivoted in the appropriate direction, the offset part of the lift rod Lift the mounting flexure and separate the magnetic head from the disk.

In a preferred embodiment, the lift rod (ζ applied rotational force is a second offset section provided on one side of the pivot section of the lift bar opposite to the (9) It was added. this#! ;The second offset part is the first offset part mentioned above. Similar to the top part, is the axis of lift salary? It is preferable if they are parallel.

The movement of the second offset part, which forms an arc around the pivot axis of the lift rod, corresponds to This causes the first offset portion to generate an arcuate motion. The second offset part is a circle It will be appreciated that several means are provided for moving in an arc. The current situation roller, an inclined portion of an inclined member that faces lift a and moves in a direction perpendicular to the sum of the lift rods; It is preferable to use an arcuate movement in the second offset part of the lift Gives movement. The second offset portion is pressed against this inclined portion, and the inclined member is lifted. When the axis of the rod ζ moves toward or away from you, the second offset part becomes the inclined part. This second offset part rises and falls due to contact with the Ru.

This movement of the second offset part is, of course, arcuate and therefore has a corresponding An arcuate movement is caused to the first offset portion.

The angles that the first offset part and the second offset part make when aligned with the pivot axis are different. It has become. This angle is such that the second offset portion is located at a higher position on the inclined portion of the inclined member. when the first offset section connects the corresponding head mounting flexure to the magnetic disk. This lifts the magnetic head away from the disk. (10) like. It is best to choose according to your convenience. Similarly, the off-cent part of g2 is Pushing the lower position of the slope f+ part (!: When the slope member is moved ), the first offset portion moves in an arc shape in the direction approaching the magnetic disk ζ, and Unfortunately, the magnetic head moves toward the disk, causing the head to become unstable. 1f so that it is placed on the disc.

In the preferred embodiment, two magnetic heads or disks are raised and lowered. Because of this, two lifts must be used and the head mounting flex supplying force to the two second offset parts to move the magnetic head simultaneously. It is preferable to use a single rocky shore 4. Therefore, the first and second (The related angular deviation is the second offset part of both foot bars.) are on opposite sides of the conical surface.

The conical surface is oriented perpendicularly to the pivot axis. has a sum of The conical surface is one of the two second offsets of both shaft bars. The two second offset throats are It comes into contact with two conical surfaces located on opposite sides. conical surface as requested The two lifts are selected so that an angular displacement is imparted to each head-mounted flexure. It may be different depending on the position of the rod and the amount of offset.

Thus ~ motion of two conical surfaces perpendicular to the pivot axis (11) When the head mounting flexure and magnetic head are lifted from the magnetic disk as described above, Allow it to be lowered.

The movement of the two conical surfaces is driven by a step motor, which moves in a straight line. This is accomplished by a shaft. − Stesopmoke receives the command from the microprocessor. Although it can be controlled precisely by using . Furthermore, cheap direct and 6-output types of Stethopmoke are now readily available. Ru.

This will be explained in more detail below with reference to the drawings. 2 in Figure 1, A top view of a preferred embodiment of the invention for use within a disk drive device is shown. There is. A cartridge (not shown) containing the magnetic disk 10 is located within the drive device.

Access to the two magnetic surfaces of Km-task 10 by magnetic heads 12 and 14 This is done through a window provided on the side of the cartridge. Figure 1 is a plan view Therefore, although only one magnetic head 12 is shown, the opposite side of this head 12 Another magnetic head 14 is located on the opposite side of the disk 10.

The magnetic head 12 is a head lift arm, in other words a head mounting flexure 1. 6, and the magnetic head 14 is attached to the head mounting flexure 18. Ru. The head lift arm 18 is located below the head mounting flexure 16, so Although not shown in Figure 1, both flexures 16.1g and magnetic spatulas F12, 14 can be seen in Figure 2.

The head mounting flexures 16 and 18 bend them into the valley' throat 12.1. 4 from the disk 10. However, that These flexures are attached to rigid structural members 17 and 19 respectively fixed to the carriage 20. Each edition has been reprinted.

Access by the magnetic head 12.14 to different tracks on the disk 10 is This is done by using a carriage 20 generally shown in FIG. this The carriage 20 moves along the rails 21.23 in the radial direction of the disc 10. This allows the magnetic heads 12 and 1'4 to track different tracks on the magnetic disk 10. This makes it possible to be located in close proximity to the

The magnetic heads 12, 14 move the edge of the disk 10 when it is stationary. It is placed on the disk 10 at a nearby position. Head 12, 1.4 is a disk Once placed on the disc 10, the disc 10 is rotated. disk 10 and head The relative movement of 12.14 is due to the air bearing between the disk 10 and the head 12.14. creates a ring which causes the head 12.14 to move radially to the disc. When you want to move the head to a different track on the disk 10, lift the head off the disk 10. There is no need to Radial movement of this head 12.14 (13) As shown in Figure 8, the head is lowered and the spatula l"12.14 is attached. This is realized by a carriage 20 moving along rails 21.23. disked When you want to remove the cartridge from the live device, the magnetic throats 12 and 14 are attached to the carrier. The edge 20 of the disc 10 is then extended to the periphery of the disk 10 by the means according to the invention. is lifted from the disk 10 by.

Lift rod 22.2 to lift magnetic head 12.14E from disk 10 4 is used. The overall shape of the lift bars 22.2 and 4 is clearly shown in Figures 1 and 2. has been done. Valley foot bars 22.24 have short, straight pivots near the center of the sky. - They have strike portions 26 and 28, respectively. Pivot part 26.28 is a mounting pro. The bearing has been tested for 30 times and has a bag layer, and this bearing ζma pipo throat g ((26 , 28 is in each pivot part 26.28 around g32, 64 which coincides with lCrmζ Allow to rotate.

Axis 32, 34 will be referred to hereinafter strictly as the axis of the lift rod.

The lift rod 22 is provided with a second offset section (detour section) 66, which ・The shaft 62 of the noft rod 22 (which is parallel to the shaft 62 of the noft rod 22) Similarly, the lift rod 24 is connected to the first offset throat section (detour section). part) is equipped with a filter 8, which is parallel to the axis 64 of the foot rod 24 and Mounting flexure 16 (joint (14) are doing.

On the opposite side of the mounting block 60 from the first offset portion 66, a lift member 22 is provided with a first offset portion 66. The offset part (detour part) 40 of 2 is provided, and this is attached to the narrow 62 of lift #22. parallel. Similarly, the lift bar 24 is connected to the second offset portion 40 of the lift bar 22. The second off-cent part (detour part) 4S in the same "1"! ! E equipped. This second Offset portion 42 is parallel to @64 of lift #24.

The short pivot portion 44 of the lift rod 22 is the pivot portion of the second offset portion 4U. mW on the side opposite to 26 and extends on an extension of the axis 62 of the lift rod 22.

Similarly, the short pivot section 46 of the lift bar 24 is connected to the pivot section 46 of the second offset section 42. IIqT] 64 on the opposite side from the bottom part 28. short pivot The portions 44 and 46 are mounted in glue holders in the terminal mounting block 48. short pi The bot parts 44 and 46 are not required, but the lift rods 22 and 24 are attached to the road. This helps prevent axial displacement.

From the above description of the lift rods 22.24, it can be seen that the second offset portion 40 of the lift rod 22 is rotated in an arc around the shaft 2, the lift 22 is connected to its pivot portion 26. It will be seen that it is adapted to pivot on a short pivot portion 44. this Corresponding to the movement, the first offset portion 66 of the lift rod 22 also moves in an arcuate manner. Ru.

(15) This arcuate movement of the first offset portion 66 is caused by the head attachment depending on the direction. It is used to raise and lower the flexure 18. In the discussion, Lift Jie 24th The second offset portion 42 works in an arc shape, and the first offset portion 42 corresponds to the arc shape. 68 is caused to move in an arc shape, and the second offset portion 40.42 is moved in an arc shape. two cones acting on the second offset part 40° 42 of the lift rod 22, 24 to Preferably, a surface or ramp 50 is used. These two conical surfaces 50 are The axis of is oriented perpendicular to lift rod 22.24 @62.64, and both surfaces A single means is provided for moving the .

As seen in FIG. 4, the second offset portion 4.1 of the lift bar 22.24] , '4.2 rest on two conical surfaces or inclined parts 50, respectively. Fourth In the figure, the second offset section 40.42 is shown above the diameter of the conical surface 50. However, in Fig. 7, the second offset part 40.42 is It is shown that it rests on the small diameter portion of the conical surface 50. Figures 4 and 7 , the movement of the conical surface 50 causes the second offset portion 40,42 to move along the respective axis 6. It can be seen that the result is a circular motion around 2,34.

5 and 8, the arcuate motion of the second offset portions 40, 42 corresponds to Effect on first offset section 66.68 and head mounting flexure 18.16 This is an illustration. Therefore, as shown in FIG. 42 is in pressure contact with the large diameter portion of the conical surface 5o, the first offset portion 56°6 8, as shown in FIG. In order to do this, push the flexure 18, .16 with helenoid l”l in the direction away from the disc. Let's go.

When the conical surface 50 is pulled away from the axes 62, 64 of the lift rods 22, 24 , as shown in FIG. However, the first offset portion 66.38 is no longer fixed as shown in FIG. Move in an arc to the position where the head mounting flexure 18.16 is not pressed, and then Than.

The magnetic head 14.12 places a hole on the disk 1o. Possible (rubbing.

The first offset portion 66 and the second offset portion 4o of the lift salary 22 are opposed to the shaft 62. The angles formed by the The radial position of the head portion and the unique conical surface cooperating therewith are determined by the head mounting. The first offset portion 6 moves in an arc shape sufficient to displace the attached flexure 18. f' is selected so that it occurs at 6゛, and this selection is (17) It is understood that pHq depends on the arrangement of the lift rod 22 and the movement range of the two conical surfaces 5o. It will be. The first offset portion 68 and the second offset of the lift 4'l4 The angles that the portions 42 make with respect to the shaft 64 are The radial position of the set part and the valleys of the unique conical surface acting on it are as described above. The selection will be made in the same way.

The offset part 40 of the foot 22 and 24 where the 0-link-like load spring 62 valleys ．． 42i is enclosed, and this n is hung on pin 54, so that it is buried 7-sa't-. ing.

The pin 54 extends from the end force of the lift 422, 24 and further from the shaft 32, 64. 42, the offset portion 40.42 is located further away from the offset portion 40. This Q IJn The load spring 52 serves two functions. Short pivot part 4 of lift loincloth 22.24 4.46 is the connection between the end mounting block 48 and the head lift arms 16 and 18. and the second offset portion 40 on the two conical surfaces 50. ．． 42i pressure contact force is supplied.

In a preferred embodiment, two conical surfaces 50 move rod 58 along its length. It is driven by a linear step motor 56. Two conical surfaces 50 are Roso It is attached to the tip of I·'58. Combinations of these, i.e. linear step The push motor 56, the rod 58, and the two conical surfaces 50 are arranged such that the two conical surfaces 5o Step motor 56 (thus perpendicular to I+62°64 of valley foot rod 22.24) It is arranged so that it can be moved in a direction.

Linear step motors are selected because their movement can be controlled very precisely. It has been established. The step motor 56 is a microprocessor-based pulse motor. The microprocessor is controlled by a signal, and this microprocessor - It also controls many other components within the drive device.

The movement of the step motor':)6 is intermittent and not continuous. But magnetic The heads 12 and 14 are connected to the magnetic disk i2. There is one space between '14 and step motor 56Kichi. This is due to the unique softness of the components. These components, especially The pad increasing flexures 16 and 18 and the IJ foot rods 22 and 24 are originally flexible to some extent. The step motor 56 is fixedly attached to itself. Therefore, they should at least move the furthest away from the step motor 56. At their ends, the steps follow Newton's first law of motion (law of inertia). Additional features in embodiments of the invention when top motor 56 is temporarily stopped. is that a carriage restraining rod 60 is provided attached to the lift rod 22. . The carriage restraint 60 is used to prevent the lift rod 22 from holding the magnetic head 14 from the disk 10. It is installed in the lifting position, and the carriage restraint is 60 for the carriage 20. It is pushed in the direction adjacent to the front surface of the carry nozzle 20. However, magnetic head 1 2. By placing 14 on the disk 10, the two conical surfaces 50 retreat. As a result, the lift rod 22 rotates and the carriage restraint 60 also moves downward. The restraining rod 60 no longer abuts the carriage 20, and thus Carriage 20 is no longer restrained from moving in the direction of disk 10. Become.

In this way, the carriage restraint bar 60 is in a position where the head 12 and 14 are raised. It performs a safety function to prevent accidental movement of the carrier nozzle 20.

In an embodiment of the invention, a cartridge is inserted into a disk drive device. When two magnetic heads 12, 14 . was lifted In position, in position. The microprocessor that controls and controls the disk drive device is Send the appropriate pulse train to the linear step motor 5 to start the two. Retract the conical surface by a small amount. However, this amount of retraction is the magnetic head 12, '1 4 is loaded onto the surface of the disk 10. this The movement is performed by a disc to interlock with the access window of Car 1-IJ. The disk drive device is rotated to purge the n1 cartridge (purge). urge) cycle is started.

After that, the rotation of the disk 10 is stopped, and the rest of the pulse train is driven by the linear step motor. 56. Since the head 12.14 is in the raised position, the two circles It is pressed against the large diameter portion of the conical surface 50. Supplied to the linear step motor 56 The pulse train causes the two conical surfaces 50 to move away from the axis 32.34 of the lift rod 22.24. so that This means that while the disk 10 is stationary, the The magnetic head 12° 14 is gently placed on the surface of the disk 10 near the edge. means. The disk 10 then rotates. The radius position on the disk 10 When you want to move the magnetic head 12.14 from the rank to a track at a different radial position, , there is no need to raise and lower the magnetic heads 12, 14 from the disk 10. this is, While the disk 10 is rotating, the phase between the disk 10 and the magnetic head 12.14 is The surface of the disk 10 by the opposing motion head 12.14 (21) When the magnetic head 12.1'4 is rotating, the magnetic head 12.1'4 scans the edge of the disk 10 while the disk 10 is rotating. The head 12, 14i taste was moved by this invention as mentioned above. Lift it up from 10.

This invention places a Winchester-type magnetic head on a stationary magnetic disk. (1 load), flexible or round magnetic disks In order to controllably mount virtually any type of magnetic head on either side of the Isoko can be used and will be well understood by those skilled in this field.

In the above embodiments, specific configurations are described.71. However, it is within the scope of the present invention. Any other form modification is also possible.

For example, a step motor rotates a shaft that has a screw thread on its surface. It may be something that Insert the three screws corresponding to the The screw thread is formed over the inner circumferential surface of the mallet inclined portion 50 so that the screw thread is circular. The conical surface or inclined part 50 is made to function as a nut. these two circles Of course, the conical surface, that is, the sloped portion 50 is connected to the shaft. The screw on the rotating shaft and the screw on its inner surface to move it axially When the screw is engaged, it should not rotate.

In another embodiment within the scope of this invention, the first and second off of each lift bar is It is preferable that the set part is located on the opposite side of the lift part. Yes, but not required; they may be located on the same side if necessary. .

Another embodiment within the scope of this invention includes a second offset of the valley foot bar 22.24. The pivot l-@32 of this lift #22.24 is located between the The idea is to use an elliptical cam rotating in a plane parallel to 64 degrees. In this form , the second offset portion 401=, 42 of the lift rod 22.24 is the edge of the elliptical cam. press against. Initially, the long axis of the elliptical cam is parallel to the second off-cellar l’i40.42. If this cam is 901j@j, the short axis is parallel to the offset part 40.42. Become. Such rotation of the elliptical cam changes the second offset portion 40, 42 into an arc shape. and correspondingly displace the first offset portion 36.68 in an arcuate manner.

With this configuration, the magnetic heads 12 and 14 can be moved up and down in the same manner as in the previous embodiment. It will be easily understood that Kokichi can do this. However, in this form, the step The rotary motion of the motor is used directly and is not converted into linear motion. , another step motor is required. For the embodiment described here, the motor Rotational motion is linear movement (23) Since it is converted into motion and works on a circular surface, that is, an inclined surface, there are 24 steps per rotation. A low-cost step motor is suitable. 24 steps per rotation like that The Tsupu's motor allows the head to move up and down smoothly enough. It is probably not suitable for use with an elliptical cam. But another step Other means including pump motors may be used.

Thus, many changes and modifications not mentioned here will be readily apparent to those skilled in the art. It will be understood that what can be done. Accordingly, the claims do not include such modifications or equivalents. should be construed to include within its scope.

Special publication 1986-501134 (8) Car, 3° Bahi, 5. Yun-2l.

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Claims (1)

[Claims] ] Lifting at least one magnetic head from a rotatable magnetic disk , and gently placing the at least one magnetic head on an air disc; of the at least one magnetic head; Each head is attached to a movable arm for bringing the head into contact with the disk. It is. Each movable arm is provided with a corresponding rod; It has a second part that is pivoted to the first part by a θ support and that detours from the axis. and the second portion is positioned adjacent to the arm for movement with the arm. and means coupled to the rod for rotating the first portion about the axis; , so that when the first portion is rotated, the second portion is rotated about the shaft. It rotates with When said means rotates said first portion of said rod in one direction, said head is when the means rotates the first portion of the rod in the opposite direction. The second portion cooperates with the arm to lift the recording head from the disk. The head lift mechanism that operates. 2. The navel drift mechanism according to claim 1, wherein said means is a drowsiness mask. 3. The head lift according to claim 2, wherein the drowsiness motor is a Stempmoke. Mechanism. 44 the salary includes a third portion detoured from the axis; The first means for rotating the first part about the shaft is the first means for rotating the first part about the shaft. including means for rotating the portion in an arc about said axis in any direction; , the first portion of the weight rotates around the axis in response to the rotation of the third portion. 62. The head lift mechanism according to claim 61, wherein the head lift mechanism is configured to move. 5. The hand for rotating the third part of the rod, the forward oblique part towards the axis. a hand connected to said movable ramp for movement toward or away from the Including steps. The third portion remains in contact with the sloped portion when the sloped portion is moved. , whereby the slope (2b) said third portion aligns said first portion of said rod as said portion approaches said axis; direction, and when the inclined portion moves away from the axis, the third portion The henno drift according to claim 4, wherein the part 1 is rotatable in the opposite direction. Mechanism. 6. The first means for moving the inclined portion of the movable inclined portion is from an electric motor. The henode drift mechanism according to claim 5. 7. The electric motor moves in the direction of movement of the inclined part (through a shaft facing the opposite direction). The shaft is connected to the ramp at one end and the shaft is connected to the ramp at the other end. The electric motor is connected to the stone, and the shaft is driven by the electric motor. the inclined portion so as not to move toward or away from the axis. A navel drift mechanism according to claim 6. 8. The electric motor is configured to move the shaft linearly along its length. The drift according to claim 7, which comprises a linear step motor. Mechanism 0 9. The movable arm moves towards and away from the disc, and moves towards one of the bars. has a restraining rod attached to said first part, said restraining rod being semi-circular with respect to said axis. Extending radially outwardly, the restraint is arranged such that the means connected to the bar is Rotate and move the first part so that the throat is lifted from the disk. said means connected to said bar restrain the movement of said carriage when said The head is placed on the disk by rotating the first part, and! −(, Ruyo The scope of the claim is that the movement of the carriage is not inhibited when the carriage is moved. The gutter drift mechanism according to item 1, item 4, or item 5. (1)