Disk drive suspension

Abstract

A suspension (10) comprises a load beam (11), a flexure (12) and a recess (50). The flexure (12) comprises a tongue (25). The recess (50) supports the tongue (25) in a swingable manner at least in a first position and a second position. The tongue (25) is provided with a first pillow (70, 71) supporting a sliding member (40) and an adhesive portion (45) fixing the sliding member (40). The load beam (11) is provided with a second pillow (80) protruding toward the sliding member (40). The second pillow (80) contacts the sliding member (40) when the tongue (25) is located at the first position, and is separated from the sliding member (40) when the tongue (25) moves to the second position.

Description

Technical Field

[0001] The present invention relates to a disk drive suspension including a tongue portion on which a slider is mounted, and more particularly to a disk drive suspension including an actuator for moving the slider. Background Art

[0002] A hard disk drive (HDD) is used in information processing devices such as personal computers. The hard disk drive includes a disk that can rotate around a spindle, a bracket that can rotate around a pivot, etc. The bracket includes an arm. The slider rotates around the pivot by a positioning motor such as a voice coil motor.

[0003] The arm of the bracket is attached with a disk drive suspension (hereinafter referred to as the suspension). The suspension includes a load beam, a flexure, etc. The flexure is arranged along the load beam. The slider is mounted on a tongue formed near the far end of the flexure. An element (converter) is arranged in the slider. The element performs access such as data reading or writing. The load beam, the flexure, the slider, etc. constitute a head gimbal assembly.

[0004] JP 2013-149341A (Patent Document 1) describes an example of a suspension. In this suspension, a sliding member is fixed to a tongue during the manufacturing process of a universal joint assembly. An adhesive is usually used to fix the sliding member to the tongue. When the sliding member is fixed to the tongue by an adhesive, the posture of the tongue and the sliding member should be stable. In order to keep the tongue and the sliding member stable, a protrusion called a pillow is formed in the tongue. The sliding member is supported at a predetermined position of the tongue by the pillow. In this state, the adhesive is cured.

[0005] In order to correspond to the increase in disk recording density, a co-located actuator (CLA) type suspension is known. An example of a CLA type suspension is described in JP2015-41394A (Patent Document 2). In this suspension, an actuator is provided in a universal joint portion of a flexure. For example, the actuator is formed of a piezoelectric body such as lead zirconate titanate (PZT). The movable side portion of the tongue can be slightly moved in a swinging direction by the actuator. In this specification, the swinging direction refers to the width direction of the distal end portion of the suspension.

[0006] In the CLA type suspension, a slider mounted on a tongue portion is moved in a swinging direction by an actuator. For this purpose, the tongue portion is divided into a first tongue portion and a second tongue portion. The first tongue portion and the second tongue portion are connected to each other by a hinge portion. For example, the trailing side portion of the slider is fixed to the second tongue portion by an adhesive. The front side portion of the slider is movable relative to the first tongue portion. In this specification, the front side portion is an inflow side of air flowing between the slider and the disk when the disk rotates. The trailing side portion is an outflow side of the air.

[0007] In the suspension of Patent Document 2, an adhesive is supplied to the second tongue during the manufacturing process of the universal joint assembly. The trailing side of the slider is fixed to the second tongue by an adhesive. In order to stabilize the posture of the slider during such attachment by an adhesive, a plurality of pillows are provided in the tongue. The slider is supported by these pillows at predetermined positions of the tongue. The adhesive is cured while a certain load is applied to the slider. The suspension manufactured in this manner is incorporated into a disk drive and used.

[0008] When the manufactured disk drive is used, the data on the recording surface of the disk is accessed through the element of the slider while the disk is rotating. In a co-located actuator (CLA) type suspension, the slider moves slightly in the swing direction by the operation of the actuator. The actuator is provided in the gimbal portion. Since the slider moves slightly in the swing direction, the suspension can correspond to the recording surface of a high-density disk.

[0009] In the CLA type suspension, the inventors of the present invention and their colleagues carefully examined the behavior of the tongue. As a result, the following findings were obtained. The inventors fully examined the movement stroke of the second tongue in the swing direction relative to the rotating magnetic disk. As a result, they found that the stroke varied greatly irregularly depending on the suspension.

[0010] As one cause of the change, when the slider moves in the swing direction, the slider comes into contact with the column part unstably. For example, a behavior in which the slider comes into contact with or separates from the column part unstably is confirmed. When the slider moves with an unstable stroke in the swing direction, the oscillation mode of the CLA type suspension is affected, thereby disturbing the frequency characteristics.

[0011] One embodiment is directed to a disk drive suspension that stabilizes the travel of a tongue with a slider in a swinging direction. Summary of the invention

[0012] According to one embodiment, the suspension includes a load beam, a flexure disposed along the load beam, and a recessed portion. The flexure includes a tongue portion on which a sliding member is mounted. The recessed portion is disposed between the load beam and the tongue portion. The recessed portion includes a protrusion. The protrusion supports the tongue portion swingably in a thickness direction of the tongue portion at least in a first position and a second position.

[0013] The tongue portion includes a first surface, a second surface, a first pillow portion, and an adhesive portion for fixing the sliding member. The first surface faces the load beam. The sliding member is mounted on the second surface. The first pillow portion supports the sliding member. A second pillow portion is provided in the load beam. The second pillow portion protrudes toward the sliding member. When the tongue portion is located at the first position, the second pillow portion contacts the sliding member, and when the tongue portion moves to the second position, the second pillow portion is separated from the sliding member.

[0014] According to the suspension of this embodiment, the behavior of the tongue on which the slider is mounted is stable. In particular, the stroke in the swing direction is stable, and the fluctuation of the frequency characteristic can be suppressed. In particular, in the co-located actuator (CLA) type suspension of this embodiment, the stroke in the swing direction can be stabilized.

[0015] An opening portion into which the second pillow portion is inserted may be formed in the tongue portion.

[0016] The tongue may include a first tongue, a second tongue and a hinge. The front side of the slider is movably placed in the first tongue. The rear side of the slider is fixed to the second tongue by an adhesive. The hinge connects the first tongue and the second tongue. Both sides of the tongue may be provided with an actuator element, which drives the second tongue in a swinging direction.

[0017] The load beam may include a height control protrusion. The height control protrusion controls the distance from the second surface to the distal end of the second pillow. The height control protrusion may be arranged in the tongue. For example, the height control protrusion is composed of a curved portion formed by bending a portion of the tongue toward the load beam. The first pillow may include a caudal pillow arranged in the second tongue; and a concave side pillow arranged at a position corresponding to the concave portion.

[0018] According to another embodiment, the suspension includes a second pillow portion provided in the slider. The second pillow portion of this embodiment protrudes from an opening portion formed in the tongue portion toward the load beam. The second pillow portion contacts the load beam when the tongue portion is in the first position and separates from the load beam when the tongue portion has moved to the second position.

[0019] Other purposes and advantages of the present invention will be explained in the following description, and some of these other purposes and advantages will become obvious through the following description, or these purposes and advantages can be learned through practice of the present invention. The purposes and advantages of the present invention are realized and obtained by the means and combinations specifically pointed out below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the summary of the invention given above and the detailed description given below, serve to explain the principles of the invention.

[0021] Figure 1 is a partial plan view of a suspension according to the first embodiment.

[0022] Figure 2 is a plan view, where Figure 1 Opposite side Figure 1 The flexure of the suspension is shown in FIG.

[0023] Figure 3 yes Figure 1 A partial plan view of the load beam of the suspension shown.

[0024] Figure 4 When the tongue is in the first position Figure 1 A partial side view of the suspension is shown.

[0025] Figure 5 When the tongue is in the second position (loading) Figure 1 A partial side view of the suspension is shown.

[0026] Figure 6 The tongue is located along Figure 1 The first position of the F6-F6 line Figure 1 A partial cross-sectional view of the suspension shown.

[0027] Figure 7 The tongue is located along Figure 1 The second position of the F6-F6 line Figure 1 A partial cross-sectional view of the suspension shown.

[0028] Figure 8 is a cross-sectional view schematically showing an example of a magnetic disk drive.

[0029] Fig. 9 1 is a diagram showing the relationship between the Z height and the stroke in the swing direction of a plurality of suspensions (No. 1 to No. 6).

[0030] Fig.10 : is a diagram showing an oscillation mode of the suspension of the first embodiment and an oscillation mode of a conventional suspension.

[0031] Fig.11 is a partial cross-sectional view showing a suspension and a slider of the second embodiment.

[0032] Fig.12 is a partial cross-sectional view showing a suspension and a slider of the third embodiment.

[0033] Fig.13 It is a partial plan view of the suspension of the fourth embodiment.

[0034] Fig.14 It is a partial plan view of the suspension of the fifth embodiment. DETAILED DESCRIPTION

[0035] [First embodiment]

[0036] This manual refers to Figure 1-Figure 10 A disk drive suspension according to a first embodiment of the present invention will be described.

[0037] Figure 11 is a partial plan view showing a co-located actuator (CLA) type suspension 10. The suspension 10 includes a load beam 11, a flexure 12, an actuator mounting portion 14, etc. The flexure 12 is provided along the load beam 11. The actuator mounting portion 14 is provided in a gimbal portion 13 of the flexure 12. Figure 2 is from Figure 1 A plan view of the flexure 12 viewed from the opposite side. Figure 3 is a partial plan view of the load beam 11 .

[0038] The load beam 11 is composed of a stainless steel plate. The load beam 11 extends in the length direction of the suspension 10. The thickness of the load beam 11 is, for example, 20 to 40 μm. However, the thickness may be different from that shown in this example. Figure 1 The direction indicated by the double-headed arrow X1 is the longitudinal direction of the load beam 11, in other words, the longitudinal direction of the suspension 10. Figure 1 , a double-headed arrow Y1 indicates a swing direction, in other words, a width direction of the distal end portion of the flexure 12 .

[0039] The flexure 12 includes a metal base 20 and a wiring portion 21. The metal base 20 is made of a stainless steel thin plate. The wiring portion 21 is provided along the metal base 20. For example, the thickness of the metal base 20 is 20 μm (12-25 μm). The thickness of the metal base 20 is smaller than the thickness of the load beam 11.

[0040] like Figure 1 As shown, the metal base 20 is fixed to the load beam 11 through the first welding part W1 and the second welding part W2. The wiring part 21 includes a base insulating layer, a plurality of conductors and a cover layer covering the conductors. The base insulating layer is formed of an electrically insulating resin such as polyimide. The conductors are formed on the base insulating layer.

[0041] A tongue portion 25 is formed near the distal end of the flexure 12 as a part of the universal joint portion 13. Figure 2 As shown, the tongue 25 includes a first tongue portion 26, a second tongue portion 27 and a hinge portion 28. The hinge portion 28 is formed between the first tongue portion 26 and the second tongue portion 27. The first tongue portion 26, the second tongue portion 27 and the hinge portion 28 are all part of the metal base 20. The contour of each of the first tongue portion 26, the second tongue portion 27 and the hinge portion 28 is formed by etching, for example.

[0042] The first arms 30 and 31 and the second arms 32 and 33 are formed at a portion of the metal base 20. The first tongue 26 is elastically supported in the flexure body 34 and the flexure distal end portion 34a by the first arms 30 and 31 and the second arms 32 and 33. The second tongue 27 is connected to the first tongue 26 by the hinge portion 28. The width of the hinge portion 28 is significantly smaller than the width of the first tongue 26 and the second tongue 27. The second tongue 27 can swing relative to the first tongue 26 in the swing direction ( Figure 1The device rotates as indicated by the double arrow Y1.

[0043] The second tongue portion 27 and the flexure distal end portion 34a are connected to each other by restriction members 35 and 36. The restriction members 35 and 36 prevent the tongue portion 25 from swinging excessively and prevent the formation of a concave separation when an impact is applied to the suspension from the outside, for example.

[0044] The slider 40 is mounted on the tongue 25. The front side 40a of the slider 40 is movably disposed in the first tongue 26 of the tongue 25. The front side 40a can move relative to the first tongue 26 in a direction parallel to the surface of the first tongue 26. The rear side 40b of the slider 40 is fixed to the second tongue 27 by an adhesive.

[0045] In this specification, the front side is the inflow side of the air flowing between the slider 40 and the disk when the disk rotates. The rear side is the outflow side of the air. The adhesive for fixing the slider 40 is supplied to the adhesive portion 45 ( Figure 1 shown with hatching).

[0046] A recessed portion 50 is formed between the load beam 11 and the tongue portion 25. For example, the recessed portion 50 is formed in the load beam 11. Figure 4 As shown, the recessed portion 50 includes a protrusion 51 protruding toward the tongue 25 in a dome shape. In another embodiment, the recessed portion 50 may be formed in the tongue 25. In this case, the protrusion 51 of the recessed portion 50 contacts the load beam 11.

[0047] like Figure 4 As shown in FIG. 1 , the distal end of the protrusion 51 of the recess 50 contacts the tongue 25. In this state, the tongue 25 can swing in the thickness direction of the tongue 25 with the recess 50 as the center. In other words, the tongue 25 can be at least in the first position ( Figure 4 and Figure 6 shown) and the second position ( Figure 5 and Figure 7 The load beam 11, the flexure 12, the sliding member 40, etc. constitute a universal joint assembly 55.

[0048] In this specification, the first position ( Figure 4 and Figure 6 ) is the position of the tongue 25 when the slider 40 is fixed to the tongue 25 during the manufacturing process of the universal joint assembly 55. When the suspension 10 is incorporated into the disk drive, and the tab 56 of the load beam 11 (such as Figure 1 and Figure 3 As shown) runs on the standby slope (unloading state), the tongue 25 is also in the first position.

[0049] Second position ( Figure 5 and Figure 7 ) is the position of the tongue 25 in a state (loading state) when the manufactured disk drive is used, in which the slider 40 has been moved onto the disk 58. In other words, in the loading state in which the slider 40 has been moved onto the disk 58, the tongue 25 is in the second position.

[0050] Figure 4 1 is a partial side view of the suspension 10 when the tongue 25 is in the first position. Figure 6 1 is a partial cross-sectional view of the suspension 10 when the tongue 25 is located in the first position. Figure 5 is a partial side view of the suspension 10 when the tongue 25 has moved to the second position (stowed state). Figure 7 FIG. 2 is a partial cross-sectional view of the suspension 10 when the tongue 25 has moved to the second position. Figures 4 to 7 As shown, the tongue 25 includes a first surface 25a and a second surface 25b. The first surface 25a faces the load beam 11. The second surface 25b is an opposite surface to the first surface 25a. A slider 40 constituting a magnetic head is mounted on the second surface 25b.

[0051] The end of the trailing side portion 40b of the slider 40 is provided with a plurality of elements. For example, each element is a magnetoresistive element (MR element) that can convert a magnetic signal into an electrical signal. These elements access the disk 58 to write or read data. The second tongue portion 27 is provided with a terminal portion 60 (such as Figure 1 The terminal portion 60 is electrically connected to the elements of the slider 40. The terminal portion 60 is connected to the conductor of the wiring portion 21.

[0052] The actuator mounting portion 14 includes a pair of actuator elements 61 and 62. The actuator elements 61 and 62 are provided on both sides of the tongue portion 25. The actuator elements 61 and 62 are composed of a piezoelectric body such as lead zirconate titanate (PZT), for example. The actuator elements 61 and 62 have the function of slightly rotating the second tongue portion 27 in the swinging direction.

[0053] like Figure 1 As shown, first ends 61a, 62a of the actuator elements 61, 62 are fixed to the first tongue portion 26 by adhesive or the like. Second ends 61b, 62b of the actuator elements 61, 62 are fixed to the second tongue portion 27 by adhesive or the like.

[0054] like Figure 1 As shown, a plurality of first pillows 70 and 71 are formed on the second surface 25b of the tongue 25. Of the first pillows 70 and 71, the first pillow 70 located on the front side is formed in the first tongue 26. Of the first pillows 70 and 71, the first pillow 71 located on the rear side is formed in the second tongue 27.

[0055] The first pillow portion 70 located on the front side supports the front side portion 40a of the slider 40. The first pillow portion 71 located on the rear side supports the rear side portion 40b of the slider 40. The first pillow portions 70 and 71 are formed of a resin such as polyimide, for example, and are convex from the second surface 25b of the tongue portion 25 toward the slider 40. The first pillow portions 70 and 71 support the slider 40 at a predetermined position of the tongue portion 25 having a predetermined posture.

[0056] A second pillow portion 80 and a height control protrusion 81 are formed in the load beam 11. Figure 3 In FIG. 1 , a virtual straight line extending in the length direction of the load beam 11 is indicated by C1. The recessed portion 50, the second pillow portion 80, and the height control protrusion 81 are formed on the straight line C1 at the center in the width direction of the load beam 11. The height control protrusion 81 will be described in detail later.

[0057] like Figure 1 , Figure 6 , Figure 7 As shown, an opening 85 is formed on the first tongue portion 26. A second pillow portion 80 is formed at a position opposite to the opening 85. The second pillow portion 80 protrudes from the opening 85 toward the sliding member 40. When the tongue portion 25 is in the first position ( Figure 4 and Figure 6 ), the distal end 80a of the second pillow portion 80 contacts the sliding member 40.

[0058] During the manufacturing process of the universal joint assembly 55, adhesive is supplied to the adhesive portion 45 (eg, Figure 1 Then, the sliding member 40 is placed on the second surface 25b of the tongue 25. At this time, the tongue 25 is located in the first position (as shown in FIG. Figure 4 and Figure 6 The slider 40 placed in the tongue 25 is supported at a predetermined position of the tongue 25 by the first pillows 70 and 71 .

[0059] like Figure 4 and Figure 6 As shown in FIG. 1 , when the tongue 25 is located at the first position, the distal end 80a of the second pillow portion 80 contacts the front side portion 40a of the slider 40. The front side portion 40a of the slider 40 is supported on the load beam 11 through the second pillow portion 80. The height control protrusion 81 contacts the first tongue 26. Therefore, the first tongue 26 is supported by the load beam 11 through the height control protrusion 81. In the state where the tongue 25 is located at the first position and the second pillow portion 80 contacts the slider 40, the height H1 (as shown in FIG. 1 ) of the height control protrusion 81 is Figure 7 As shown) is arranged so that the height control protrusion 81 contacts the first tongue 26.

[0060] When the tongue 25 is located Figure 6In the first position shown in FIG. 1 , the distal end 80a of the second pillow portion 80 protrudes from the second surface 25b toward the sliding member 40. The protruding height (the distance from the second surface 25b to the distal end 80a) is controlled by the height limiting protrusion 81. In other words, the height H1 (eg, Figure 7 71. As shown in FIG. 7 , the position (height) of the distal end 80a of the second pillow portion 80 is set to be equal to the height of the first pillow portions 70 and 71. Therefore, the height of the distal end 80a of the second pillow portion 80 can be made equal to the height of the first pillow portions 70 and 71.

[0061] Thus, when the slider 40 is attached to the tongue 25 by the adhesive, the slider 40 is supported on the tongue 25 by the first pillows 70 and 71 and the second pillow 80. At the same time, the slider 40 is supported on the load beam 11 by the second pillow 80. In addition, the first tongue 26 is supported on the load beam 11 by the height control protrusion 81.

[0062] In the structure in which the second pillow portion 80 is not provided, when the slider 40 is attached to the tongue portion 25 by an adhesive, the slider 40 is supported on the tongue portion 25 only by the first pillow portions 70 and 71. In this case, a part of the load applied from the upper side of the slider 40 is input in a direction in which the first tongue portion 26 is deformed via the first pillow portion 70. This input causes the contact state of the first pillow portion 70 and the slider 40 to be unstable.

[0063] In the present embodiment, when the slider 40 is connected to the tongue 25 by an adhesive, the slider 40 is supported on the tongue 25 by the first pillows 70 and 71, and at the same time, the front side portion 40a of the slider 40 is supported on the load beam 11 by the second pillow 80. In addition, the first tongue 26 is supported on the load beam 11 by the height control protrusion 81. This structure prevents the load input from the upper side of the slider 40 from being applied in the direction to deform the first tongue 26. Therefore, the contact state between the first pillow 70 and the slider 40 is stable.

[0064] like Figure 5 and Figure 7 As shown in FIG. 1 , when the slider 40 moves to a position parallel to the surface of the magnetic disk 58 and thus transitions to the loading state, the tongue 25 is located at the second position. When the tongue 25 is located at the second position, the distal end 80a of the second pillow portion 80 is separated from the slider 40. In addition, the height control protrusion 81 is separated from the first tongue 26. In this state, the tongue 25 is swingably supported by the recessed portion 50 and functions as a universal joint.

[0065] Figure 81 is a cross-sectional view schematically showing an example of a hard disk drive (HDD) 100. The disk drive 100 is provided with a housing 101 (partially shown), a disk 58, a bracket 103, a positioning motor 104, etc. The housing 101 is sealed with a cover. The disk 58 rotates around a spindle. The bracket 103 rotates around a pivot 102 by the positioning motor 104. The bracket 103 includes an arm 105. The suspension 10 is attached to the distal end of the arm 105.

[0066] When the positioning motor 104 rotates the carriage 103, the suspension 10 moves in the radial direction of the magnetic disk 58. The slider 40 is thereby moved to a desired position of the magnetic disk 58. When the magnetic disk 58 rotates, an air bearing is formed between the slider 40 and the magnetic disk 58.

[0067] When voltage is applied to Figure 1 When the actuator elements 61 and 62 shown in the figure are turned, the actuator elements 61 and 62 are twisted in opposite directions based on the voltage. As a result, the second tongue portion 27 rotates relative to the first tongue portion 26 with the hinge portion 28 as the center. Therefore, the trailing side portion 40b of the slider 40 can be moved in the swing direction ( Figure 1 The machine can be positioned at high speed and with high precision (in the direction indicated by the double-headed arrow Y1 in the figure).

[0068] Fig. 9 The relationship between Z height and travel in the swing direction of six co-located actuator (CLA) type suspensions (No. 1-No. 6) is shown. All of these suspensions include first pillows 70 and 71. Fig. 9 The horizontal axis represents the Z height. As the Z height decreases, the deformation of the suspension ( Figure 8 As the deformation of the suspension increases, the reaction force of the suspension increases.

[0069] Fig. 9 No. 1 to No. 3 shown in the upper part of 9 show the stroke when the slider 40 is not in contact with the pillow 70. No. 1-No. 3 have no problem, since a stable large stroke can be obtained. No. 4 to No. 6 shown in the lower part of 9 show the stroke when the slider 40 is in contact with the pillow 70. The strokes of No. 4 to No. 6 are small but stable. Therefore, they have no problem.

[0070] However, when the slider 40 is in unstable contact with the pillow 70, a problem occurs. When the slider 40 and the pillow 70 are in an unstable contact state, the range S1 between the large stroke of No. 1 to No. 3 and the small stroke of No. 4 to No. 4 (such as Fig. 9 Such variations are undesirable for properly maintaining the stroke characteristics of the co-located actuator (CLA) type suspension 10.

[0071] In contrast, in the suspension 10 of the present embodiment, when the slider 40 is attached to the tongue 25 by an adhesive during the manufacturing process, the slider 40 is supported on the tongue 25 by the first pillows 70 and 71. In addition, the slider 40 is supported on the load beam 11 by the second pillow 80. This structure prevents the force applied from the slider 40 from being applied in the direction of deforming the first tongue 26. Therefore, contact instability between the slider 40 and the first pillow 70 is avoided.

[0072] Fig.10 The relationship between frequency and gain when oscillation is applied to the suspension is shown. Fig.10 In FIG. 1 , the solid line L1 represents the oscillation mode of the conventional CLA type suspension. In the conventional suspension, significant fluctuations occur in the oscillation mode around 10 kHz as indicated by the arrow A1. Fig.10 In FIG. 1 , a two-dot chain line L2 indicates an oscillation mode of the suspension 10 of the present embodiment. In the suspension 10 of the present embodiment, unlike a conventional suspension, no fluctuation occurs in an oscillation mode near 10 kHz. Therefore, an ideal oscillation mode is obtained.

[0073] [Second embodiment]

[0074] Fig.11 1 is a partial cross-sectional view showing a suspension 10A of the second embodiment. The suspension 10A includes a bent portion 110 in a portion of the tongue 25, for example, in the distal end of the tongue 25. The bent portion 110 is bent toward the load beam 11. The bent portion 110 serves as a height control protrusion 81A. Fig.11 As shown, when the tongue 25 is located at the first position, the second pillow portion 80 is in contact with the slider 40. In addition, the height control portion 81A is in contact with the load beam 11.

[0075] When the tongue 25 has moved to the second position, the second pillow portion 80 is separated from the slider 40. In addition, the height control projection 81A is separated from the load beam 11. Other structures and effects are similar to those of the first embodiment ( Figures 1 to 10 ) has the same structure and effect as the suspension 10A of the second embodiment. Therefore, common structural elements of the embodiments are denoted by common reference numerals, and detailed description thereof is omitted.

[0076] [Third embodiment]

[0077] Fig.12 1 is a partial cross-sectional view showing a suspension 10B of the third embodiment. In the suspension 10B, a second pillow portion 80B is formed in the slide member 40. Fig.12 As shown, when the tongue 25 is located at the first position, the second pillow portion 80B contacts the load beam 11. When the tongue 25 moves to the second position, the second pillow portion 80B separates from the load beam 11. Other structures and effects are similar to those of the first embodiment ( Figures 1 to 10) and the suspension 10B of the third embodiment have the same structure and effect. Therefore, the common structural elements of the embodiments are denoted by common reference numerals, and detailed description thereof is omitted.

[0078] [Fourth embodiment]

[0079] Fig.13 10C is a plan view showing a suspension 10C of the fourth embodiment. The suspension 10C is similar to the suspension 10 ( Figures 1 to 10 ) includes a first tongue portion 26, a second tongue portion 27 and a hinge portion 28. The first tongue portion 26 is provided with a front side portion 40a of the sliding member 40. The second tongue portion 27 is provided with a rear side portion 40b of the sliding member 40.

[0080] The first pillow portion of the suspension 10C includes a front pillow 70a, a rear pillow 71a, and a recessed side pillow 72. The front pillow 70a is provided near the hinge portion 28 of the first tongue portion 26. The rear pillow 71a is provided in the second tongue portion 27. The recessed side pillow 72 is provided at a position corresponding to the recessed portion 50. Other structures and effects are similar to those of the first embodiment ( Figures 1 to 10 ) and the suspension 10C of the fourth embodiment have the same structure and effect. Therefore, the common structural elements of the embodiments are denoted by common reference numerals, and detailed description thereof is omitted.

[0081] [Fifth embodiment]

[0082] Fig.14 1 is a plan view showing a suspension 10D of the fifth embodiment. In the suspension 10D, the second tongue portion 27 is provided with a tail side pillow 71a as a first pillow portion. A recessed side pillow 72 as a first pillow portion is provided at a position corresponding to the recessed portion 50. The first tongue portion 26 is not provided with a first pillow portion. Other structures and effects are similar to those of the fourth embodiment ( Fig.13 ) and the suspension 10D of the fifth embodiment have the same structure and effect. Therefore, common structural elements of the embodiments are denoted by common reference numerals, and detailed description thereof is omitted.

[0083] Of course, the present invention can be implemented by making various modifications to the structural elements constituting the suspension, such as the shape or position of the first pillow, the second pillow, the height control protrusion, etc. The technical idea of ​​the present invention can be applied to suspensions other than the co-located actuator (CLA) type suspension.

[0084] Other advantages and modifications will readily occur to those skilled in the art. Therefore, in a broad sense, the present invention is not limited to the specific details and representative embodiments shown and described herein. Therefore, various modifications may be made without departing from the spirit or scope of the overall inventive concept defined by the appended claims and their equivalents.

Claims

1. A disk drive suspension, characterized in that: include: a load beam (11); a flexure (12) disposed along the load beam (11) and comprising a tongue (25) on which a slide (40) is mounted; and a recessed portion (50) disposed between the load beam (11) and the tongue portion (25) and comprising a protruding portion (51) which swingably supports the tongue portion (25) in a thickness direction of the tongue portion (25) at least at a first position and a second position, wherein The tongue (25) comprises: a first surface (25a) facing the load beam (11); a second surface (25b) on which the sliding member (40) is mounted; A first pillow portion (70, 71) supporting the sliding member (40); an adhesive portion (45) for fixing the sliding member (40); and A second pillow portion (80) is provided on the load beam (11) and protrudes toward the sliding member (40). When the tongue portion (25) is located at the first position, the second pillow portion (80) contacts the sliding member (40). When the tongue portion (25) moves to the second position, the second pillow portion (80) separates from the sliding member (40).

2. The disk drive suspension according to claim 1, wherein: The tongue portion (25) includes an opening portion (85), and the second pillow portion (80) is inserted into the opening portion (85).

3. The disk drive suspension according to claim 1, wherein: The tongue (25) comprises: a first tongue portion (26) in which the front side portion (40a) of the sliding member (40) is movably placed; a second tongue portion (27), to which the trailing side portion (40b) of the slider (40) is fixed by the adhesive portion (45); and A hinge portion (28) connects the first tongue portion (26) and the second tongue portion (27), wherein actuator elements (61, 62) are provided on both sides of the tongue portion (25), and the actuator elements (61, 62) drive the second tongue portion (27) along a swinging direction.

4. The disk drive suspension according to claim 1, wherein: The load beam (11) includes a height control protrusion (81), and the distance from the second surface (25b) to the distal end (80a) of the second pillow portion (80) is controlled by the height control protrusion (81).

5. The disk drive suspension of claim 1, wherein: The tongue portion (25) includes a height control protrusion (81A), and the distance from the second surface (25b) to the distal end (80a) of the second pillow portion (80) is controlled by the height control protrusion (81A).

6. The disk drive suspension of claim 5, wherein: The height control protrusion (81A) includes a bent portion (110) formed by bending a portion of the tongue (25) toward the load beam (11).

7. The disk drive suspension of claim 1, wherein: The tongue (25) comprises: a first tongue portion (26) in which the front side portion (40a) of the sliding member (40) is disposed; a second tongue portion (27) in which the trailing side portion (40b) of the slider (40) is disposed; and a hinge portion (28) connecting the first tongue portion (26) and the second tongue portion (27), wherein the first pillow portion (70, 71) comprises: a tail side pillow (71a) disposed on the second tongue portion (27); and A recessed side pillow (72) is arranged at a position corresponding to the recessed portion (50).

8. A disk drive suspension, characterized in that: include: a load beam (11); a flexure (12) disposed along the load beam (11) and comprising a tongue (25) on which a slide (40) is mounted; and a recessed portion (50) disposed between the load beam (11) and the tongue portion (25) and comprising a protrusion (51) that swingably supports the tongue portion (25) at least at a first position and a second position in a thickness direction of the tongue portion (25), wherein The tongue (25) comprises: a first surface (25a) facing the load beam (11); a second surface (25b) on which the sliding member (40) is mounted; A first pillow portion (70, 71) supporting the sliding member (40); an adhesive portion (45) for fixing the sliding member (40); and A second pillow portion (80B) is provided in the sliding member (40) and protrudes from an opening portion (85) formed in the tongue portion (25) toward the load beam (11), wherein the second pillow portion (80B) contacts the load beam (11) when the tongue portion (25) is located at the first position, and the second pillow portion (80B) separates from the load beam (11) when the tongue portion (25) moves to the second position.

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