JP2008198266A - Head clip and working method using same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate device assembling and maintenance work such as inspection, repairing or cleaning, and to prevent damaging of a head actuator regarding a head clip and a working method using the same. <P>SOLUTION: The head clip is inserted into a head actuator when work is carried out for the head actuator equipped with an actuator arm, a head suspension disposed in the tip of the actuator arm, and a head slider disposed in the tip of the head suspension. The head clip includes a plurality of holders formed into comb-tooth shapes, and projected parts disposed in the holders. In a state where each holder is inserted into a first or second insertion positions between adjacent head suspensions, only one of a pair of adjacent head suspensions brought into contact with at least one holder is temporarily deformed to increase a distance between the head suspensions. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a head clip and a work method using the head clip, and more particularly to a head clip used when performing maintenance work such as assembly, inspection, repair, and cleaning of a device including a magnetic recording medium and a head. It relates to the working method used.

  The magnetic storage device includes a plurality of magnetic recording media and a plurality of heads for recording and reproducing information. In the magnetic disk device, a plurality of magnetic disks are coaxially provided at predetermined intervals, and one head is provided at the tip of the head actuator for the recording surface of each magnetic disk. When performing maintenance work such as assembly, inspection, repair, and cleaning of such a device, a head clip is used, and the work is performed in a state in which an inadvertent movement of the head actuator is prevented by the head clip.

  FIG. 1 is a view showing an example of a conventional head clip. 1A is a perspective view as seen from the front direction of the head clip 1, and FIG. 1B is a perspective view as seen from the side surface direction of the head clip 1. The head clip 1 has a comb-shaped holding part 2. In FIG. 1, the thickness (length in the vertical direction) D1 of each holding part 2 is constant.

  FIG. 2 is a plan view showing the head actuator. The head actuator 11 is provided at an actuator arm 12 driven by a driving unit such as a voice coil motor (VCM) (not shown), a head suspension 13 provided at the tip of the actuator arm 12, and a tip of the head suspension 13. The head slider 14 is provided.

  FIG. 3 is a front view showing a state in which the head clip 1 shown in FIG. 1 is inserted into the head actuator 11. Since the thickness D1 of the holding portion 2 of the head clip 1 is substantially equal to the distance between the adjacent head suspensions 13, inadvertent movement of the head suspension 13 can be prevented when performing the above-described work. However, when the jig 18 or the like is inserted between the adjacent head sliders 14 and the head slider 14 is cleaned or inspected by a microscope, the distance between the adjacent head suspensions 13 is short, so the head slider 14 or the like. There is a high possibility of damage.

  Therefore, when a jig 18 or the like is inserted between adjacent head sliders 14 to perform cleaning of the head slider 14 or inspection with a microscope, a head clip as shown in FIG. 4 is used. 4A is a perspective view seen from the front direction of the head clip 21, and FIG. 4B is a perspective view seen from the side face direction of the head clip 21. The head clip 21 has a comb-shaped holding portion 22. In FIG. 4, the thickness (length in the longitudinal direction) D2 of each holding portion 22 is constant, and this thickness D2 is thicker than the thickness D1 of the holding portion 2 of the head clip 1 shown in FIG.

  FIG. 5 is a front view showing a state in which the head clip 21 shown in FIG. 4 is inserted into the head actuator 11. Since the thickness D2 of the holding portion 22 of the head clip 21 is larger than the distance between the adjacent head suspensions 13, the distance between the adjacent head suspensions 13 is widened by the holding portion 22, and the head is used when performing the above-described work. Inadvertent movement of the suspension 13 can be prevented. In this case, when the jig 18 or the like is inserted between the adjacent head sliders 14 to perform cleaning of the head slider 14 or inspection with a microscope, the distance between the adjacent head suspensions 13 is widened. The head slider 14 and the like are not damaged.

  Thus, when performing maintenance work such as assembly, inspection, repair, and cleaning of the magnetic disk device, two types of head clips 1 and 21 have conventionally been used.

A head clip used at the time of assembling the head is proposed in, for example, Patent Documents 1 and 2.
Japanese Patent Laid-Open No. 63-167490 JP-A-3-502620

  When the head clip 21 shown in FIG. 4 is used, the upper head suspension 13 in contact with each holding portion 22 is temporarily deformed upward, and at the same time, the lower head suspension 13 is temporarily deformed downward. The Therefore, as shown in FIG. 5, there is a problem that the head suspension 13 temporarily deformed by the adjacent holding portions 22 may come into contact with the head slider 14 to be damaged. Further, since each head suspension 13 is deformed by the holding portion 22, it is fixedly deformed particularly when the head clip 21 is inserted into the head actuator 11 for a relatively long time or is inserted into the head actuator 11 many times. There is also a problem that the flying height of the head slider 13 from the magnetic disk (not shown) may change as the probability that the head suspension 13 is generated increases.

  Therefore, the present invention provides a head clip that can easily perform maintenance work such as assembly, inspection, repair, and cleaning of the apparatus, and that can prevent damage to the head actuator, and a work method using the head clip. The purpose is to provide.

  The above-described problems include a plurality of insertion portions that respectively insert magnetic heads for recording and reproduction on two front and back surfaces of a plurality of recording media on a magnetic head mounting side of a plurality of support members provided at respective tips, and the insertion An inter-support member expansion portion that expands between specific support members when the insertion portion is inserted into the support member up to at least one insertion position on the portion, and the support member spread by the inter-support member expansion portion; This can be achieved by a head clip characterized in that the support member adjacent to the support member does not come into contact.

  According to the present invention, a head clip that can easily perform maintenance work such as assembly, inspection, repair, and cleaning of the apparatus and that can prevent damage to the head actuator, and a work method using the head clip. Can be realized.

  The head clip of the present invention has a configuration in which only one of the head suspensions adjacent to the head actuator is temporarily deformed and the distance between the adjacent head suspensions is widened in a state where the head clip is inserted into the head actuator to a predetermined insertion position. Have Also, since different head suspensions are temporarily deformed according to the insertion position or the insertion distance of the head clip with respect to the head actuator, maintenance such as assembly, inspection, repair and cleaning of each head slider and head suspension etc. It is possible to easily perform the work at the same time and to prevent damage to the head actuator.

  Furthermore, according to the insertion position or insertion distance of the head clip with respect to the head actuator, or according to the movement of the position of the convex portion provided on the holding portion of the head clip, all the head suspensions are not temporarily deformed. You can also In this case, unlike the conventional example, different operations can be handled with a single head clip without using two types of head clips.

  Below, each Example of the head clip of this invention and the working method using the same is described with FIG.

  A first embodiment of a head clip and a working method using the head clip of the present invention will be described. In the present embodiment and other embodiments to be described later, the case where the present invention is applied to a magnetic disk device will be described for convenience of explanation.

  FIG. 6 is a perspective view of the first embodiment of the head clip as seen from the side surface direction together with the insertion position P1. The head clip 51 has a comb-shaped holding part 52. In FIG. 6, the upper surface or the lower surface of each holding portion 52 has a convex portion 53. Each convex part 53 has a taper. The thickness (length in the vertical direction) d2 of the convex portion 53 of each holding portion 52 is thicker than the thickness d1 of other portions. The thickness d1 of each holding portion 52 other than the convex portion 53 is substantially equal to the distance between the adjacent head suspensions 13.

  The material used for the head clip 51 is not particularly limited, but it is desirable to use a material that does not easily generate static electricity. The head clip 51 may be integrally formed or may have a configuration in which a plurality of plate-like members are bonded.

  FIG. 7 is a plan view showing a state in which the head clip 51 shown in FIG. 6 is inserted up to the insertion position P1 of the head actuator 11. The head actuator 11 is provided at an actuator arm 12 driven by a driving unit such as a voice coil motor (VCM) (not shown), a head suspension 13 provided at the tip of the actuator arm 12, and a tip of the head suspension 13. The head slider 14 is provided. When the head clip 51 is inserted in the direction of the arrow to the insertion position P1 of the head actuator 11, the one-dot chain line indicating the insertion position P1 in FIG. 6 and the center line CL along the axial direction of the head actuator 11 indicated by the broken line in FIG. To do.

  FIG. 8 is a front view showing a state in which the head clip 51 shown in FIG. 6 is inserted up to the insertion position P1 of the head actuator 11. The thickness d1 of each holding portion 52 other than the convex portion 53 is substantially equal to the distance between the adjacent head suspensions 13. On the other hand, since the thickness d2 of the convex portion 53 of each holding portion 52 is thicker than the thickness d1, the upper head suspension 13 of the pair of adjacent head suspensions 13 in the central portion is moved upward by the convex portion 53 of the central holding portion 52. To be spread. Thus, inadvertent movement of the head suspension 13 can be prevented when performing maintenance work such as assembly, inspection, repair, and cleaning of the magnetic disk device with respect to each head slider 14, the head suspension 13, and the like. In this case, when the jig 18 or the like is inserted between the head sliders 14 adjacent to each other in the center portion and the head slider 14 is cleaned or inspected with a microscope, the distance between the adjacent head suspensions 13 is widened. Therefore, the head slider 14 and the like are not damaged. As shown in FIG. 8, at the insertion position P1, only the central holding portion 52 has the convex portion 53, so that the temporarily deformed head suspension 13 contacts the adjacent head suspension 13 and damages the head slider 14. Can be prevented. In addition, since only one head suspension 13 is deformed at the insertion position P1, the head clip 51 is fixed even if it is inserted into the head actuator 11 for a relatively long time or inserted into the head actuator 11 many times. The probability of the head suspension 13 being deformed is lower than that of the conventional example, and the possibility that the flying height of the head slider 13 from the magnetic disk (not shown) is low is low.

  FIG. 9 is a perspective view showing the first embodiment of the head clip together with the insertion position P2 as seen from the side surface direction.

  FIG. 10 is a plan view showing a state in which the head clip 51 shown in FIG. 9 is inserted up to the insertion position P2 of the head actuator 11. When the head clip 51 is inserted in the direction of the arrow to the insertion position P2 of the head actuator 11, the alternate long and short dash line indicating the insertion position P2 in FIG. 9 and the center line CL along the axial direction of the head actuator 11 indicated by the broken line in FIG. To do.

  FIG. 11 is a front view showing a state in which the head clip 51 shown in FIG. 9 is inserted up to the insertion position P2 of the head actuator 11. The thickness d1 of each holding portion 52 other than the convex portion 53 is substantially equal to the distance between the adjacent head suspensions 13. On the other hand, since the thickness d2 of the convex portion 53 of each holding portion 52 is thicker than the thickness d1, the upper head suspension 13 of the pair of adjacent head suspensions 13 in the upper portion is moved upward by the convex portion 53 of the upper and lower holding portions 52. Of the pair of adjacent head suspensions 13 in the lower part, the lower head suspension 13 is expanded downward. Thus, inadvertent movement of the head suspension 13 can be prevented when performing maintenance work such as assembly, inspection, repair, and cleaning of the magnetic disk device with respect to each head slider 14, the head suspension 13, and the like. In this case, when the jig 18 or the like is inserted between the adjacent head sliders 14 in the upper and lower portions and the head slider 14 is cleaned or inspected with a microscope, the distance between the adjacent head suspensions 13 is widened. Therefore, the head slider 14 and the like are not damaged. As shown in FIG. 11, at the insertion position P2, only the upper and lower holding portions 52 have convex portions 53, so that the temporarily deformed head suspension 13 contacts the adjacent head suspension 13 and damages the head slider 14. Can be prevented. Further, since only the two head suspensions 13 that are separated from each other are deformed at the insertion position P2, even if the head clip 51 is inserted into the head actuator 11 for a relatively long time or is inserted into the head actuator 11 many times. The probability that the head suspension 13 that is fixedly deformed is lower than that of the conventional example, and the possibility that the flying height of the head slider 13 from the magnetic disk (not shown) changes is low.

  That is, the convex portion 53 of each holding portion 52 has an arrangement such that the adjacent head suspensions 13 are not deformed in a direction approaching each other at the insertion positions P1 and P2. Moreover, the holding | maintenance part 52 which has the convex part 53 in the area | region corresponding according to insertion position P1, P2 differs.

  FIG. 12 is a cross-sectional view of the cross-sectional shape of the main part of the second embodiment of the head clip as viewed from the side surface direction. In FIG. 12, the same parts as those in FIG.

  This embodiment differs from the first embodiment in that convex portions 53 are provided on the upper and lower surfaces of at least one holding portion 52 of the head clip 51-1. In the case of the present embodiment, the head suspension 13 to be expanded can be set more finely.

  FIG. 13: is the perspective view which looked at the principal part of 3rd Example of the head clip from the side surface direction. In FIG. 13, the same parts as those in FIG.

  The taper of the convex part 53 which the holding | maintenance part 52 of the head clip 51 of 1st Example has is a curved surface which changes continuously. On the other hand, in the present embodiment, the taper of the convex portion 53 included in the holding portion 52 of the head clip 51-2 is discontinuous, and includes a plurality of tapered surfaces. In the case of the present embodiment, since the vertex of the convex portion 53 is a plane, it is easy to determine that the head clip 51-2 has been inserted into the insertion position P1 or P2 with respect to the head actuator 11.

  FIG. 14 is a perspective view of the main part of the fourth embodiment of the head clip as viewed from the side. 14, the same parts as those in FIG. 6 are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, the convex portion 53 provided on at least one holding portion 52 of the head clip 51-3 is movable by moving the knob 55 in the arrow direction. In the case of the present embodiment, the head suspension 13 to be expanded can be finely set in accordance with the use of the head clip 51-3, the model and type of the head actuator 11, and the like.

  FIG. 15 is a cross-sectional view of the cross-sectional shape of the main part of the fifth embodiment of the head clip as viewed from the side surface direction. 15, the same parts as those in FIG. 6 are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, a pair of tapered portions 52A and 52B are provided at the tip of at least one holding portion 52 of the head clip 51-4. The tapered portions 52A and 52B may be configured as a plane as shown in FIG. 15 or may be configured as a curved surface. In this embodiment, when the head clip 51-4 is inserted into the head actuator 11, it can be smoothly inserted to a desired insertion position without damaging the head suspension 13.

  FIG. 16 is a perspective view of the sixth embodiment of the head clip, viewed from the side direction, together with the insertion position P3. In FIG. 16, the same parts as those in FIG.

  In the present embodiment, the convex portion 53 is not provided on the upper surface or the lower surface of the holding portion 52 in the region 54 corresponding to the insertion position P3 of each holding portion 52 of the head clip 51-5. That is, the area 54 of each holding part 52 is configured by a flat part similar to other areas where the convex part 53 is not provided. Therefore, when the head clip 51-5 is inserted up to the insertion position P3 with respect to the head actuator 11, the head clip 51-5 has the same function as the conventional head clip 1 described with reference to FIG. The portion 52 is in contact with the corresponding pair of adjacent head suspensions 13 without being deformed, and has the same function as the head clip 51 of the first embodiment when inserted to the insertion position P2 or P3. At least one holding portion 52 has a shape that contacts with a corresponding pair of adjacent head suspensions 13 and deforms only one of them. Therefore, a single head clip 51-5 is used where two types of head clips 1 and 21 are conventionally required when performing maintenance work such as assembly, inspection, repair and cleaning of the magnetic disk device. Can be done.

  In each of the above embodiments, the number of holding portions of the head clip is not limited to three, but may be two or more, and the number of convex portions that each holding portion has on the upper surface and / or the lower surface is also included. There is no particular limitation.

  Furthermore, the apparatus to which the present invention can be applied is not limited to a magnetic disk apparatus, but can be applied to various magnetic storage apparatuses including a head actuator having a head slider provided in each of four or more adjacent head suspensions. Is possible.

  The head clip may be manually inserted into the head actuator by an operator to control the insertion position, or may be automatically inserted by a robot or the like to automatically control the insertion position. In the latter case, the head clip may constitute a part of the robot.

  In each of the embodiments described above, the head suspension 13 includes a plurality of support members each having a magnetic head (or head slider 14) for recording / reproducing data on the front and back surfaces of a plurality of recording media (magnetic disks). Configure. The holding portion 52 constitutes a plurality of insertion portions of the head clip that are respectively inserted into the magnetic head mounting side of these support members. The convex portion 53 constitutes an inter-support member expansion portion of the head clip that expands a space between specific support members when the insertion portion is inserted into the support member up to at least one insertion position on the insertion portion. The head clip is configured such that the support member spread by the extension portion between the support members does not contact the support member adjacent to the support member.

In addition, this invention also includes the invention attached to the following.
(Appendix 1)
A plurality of insertion portions for respectively inserting magnetic heads for recording and reproduction on the front and back surfaces of a plurality of recording media on the magnetic head mounting side of a plurality of support members provided at the respective tips;
An inter-support member expansion portion that widens a specific support member when the insertion portion is inserted into the support member up to at least one insertion position on the insertion portion;
The head clip, wherein the support member spread by the extended portion between the support members does not contact the support member adjacent to the support member.
(Appendix 2)
The head clip according to appendix 1, wherein the extended portion between the support members has a convex shape.
(Appendix 3)
The head clip according to claim 2, wherein the convex shape is formed on at least one support member side.
(Appendix 4)
The head clip according to appendix 1, wherein the center of the extended portion between the support members is a flat surface.
(Appendix 5)
2. The head clip according to claim 1, further comprising a plurality of inter-support member expansion portions that extend between different support members at the respective insertion positions.
(Appendix 6)
An actuator arm, a head suspension provided at the tip of the actuator arm, and a head clip that is inserted into the head actuator when the head actuator has a head slider provided at the tip of the head suspension. There,
A plurality of holding portions provided in a comb-teeth shape;
And a convex portion provided in each holding portion,
With each holding portion inserted between adjacent head suspensions up to the first or second insertion position, only one of a pair of adjacent head suspensions in contact with at least one holding portion is temporarily deformed and the A head clip characterized in that the distance between adjacent head suspensions is widened.
(Appendix 7)
The head clip according to appendix 6, wherein the convex portion is provided on at least one of an upper surface and a lower surface of each holding portion that contacts the head suspension.
(Appendix 8)
The head clip according to appendix 6 or 7, wherein a plurality of the convex portions are provided in the holding portion.
(Appendix 9)
The head clip according to any one of appendices 6 to 8, wherein the convex portion has a continuous or discontinuous taper.
(Appendix 10)
Additional notes 6 to 8, wherein the holding portion having the convex portion is different in a corresponding region depending on whether the insertion position of the head clip with respect to the head actuator is the first or second insertion position. The head clip according to any one of claims.
(Appendix 11)
The head clip according to any one of appendices 6 to 10, wherein at least one holding portion is provided so as to be movable along the convex portion.
(Appendix 12)
The head clip according to any one of appendices 6 to 11, wherein a tip of each holding portion has a tapered portion.
(Appendix 13)
Each holding portion has a shape in contact with the corresponding pair of head suspensions without being deformed in a state where each holding portion is inserted to the third insertion position between adjacent head suspensions. The head clip according to any one of appendices 6 to 12.
(Appendix 14)
Inserting the head clip according to any one of appendices 6 to 13 into the head actuator;
Insert the head clip into the head actuator to an insertion position corresponding to a pair of head suspensions to be inserted between the jigs,
An operation method using a head clip, wherein the operation is performed on the head slider using the jig.
(Appendix 15)
The working method using the head clip according to appendix 14, wherein the insertion position of the head clip with respect to the head actuator is controlled manually or automatically by a robot.

  While the present invention has been described with reference to the embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications and improvements can be made within the scope of the present invention.

It is a figure which shows an example of the conventional head clip. It is a top view which shows a head actuator. It is a front view which shows the state which inserted the head clip shown in FIG. 1 in the head actuator. It is a figure which shows the other example of the conventional head clip. It is a front view which shows the state which inserted the head clip shown in FIG. 4 in the head actuator. It is the perspective view seen from the side direction which shows 1st Example of a head clip with the insertion position P1. It is a top view which shows the state which inserted the head clip to the insertion position P1 of a head actuator. It is a front view which shows the state which inserted the head clip to the insertion position P1 of a head actuator. It is the perspective view seen from the side direction which shows 1st Example of a head clip with the insertion position P2. It is a top view which shows the state which inserted the head clip to the insertion position P2 of a head actuator. It is a front view which shows the state which inserted the head clip to the insertion position P2 of a head actuator. It is sectional drawing which looked at the cross-sectional shape of the principal part of 2nd Example of a head clip from the side surface direction. It is the perspective view which looked at the principal part of 3rd Example of the head clip from the side surface direction. It is the perspective view which looked at the principal part of 4th Example of the head clip from the side surface direction. It is sectional drawing which looked at the cross-sectional shape of the principal part of 5th Example of a head clip from the side surface direction. It is the perspective view seen from the side direction which shows 6th Example of a head clip with the insertion position P3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Head actuator 12 Actuator arm 13 Head suspension 14 Head slider 51, 51-1 to 51-5 Head clip 52 Holding part 52A, 52B Taper part 53 Projection part 55 Knob

Claims (5)

A plurality of insertion portions for respectively inserting magnetic heads for recording and reproduction on the front and back surfaces of a plurality of recording media on the magnetic head mounting side of a plurality of support members provided at the respective tips;
An inter-support member expansion portion that widens a specific support member when the insertion portion is inserted into the support member up to at least one insertion position on the insertion portion;
The head clip, wherein the support member spread by the extended portion between the support members does not contact the support member adjacent to the support member.   The head clip according to claim 1, wherein the extended portion between the support members has a convex shape.   The head clip according to claim 2, wherein the convex shape is formed on at least one support member side.   The head clip according to claim 1, wherein the center of the extended portion between the support members is a flat surface.   2. The head clip according to claim 1, further comprising a plurality of inter-support member expansion portions that extend between the different support members at each of the insertion positions.

Images