WO2019031547A1 - Palier lisse de butée - Google Patents
Palier lisse de butée Download PDFInfo
- Publication number
- WO2019031547A1 WO2019031547A1 PCT/JP2018/029775 JP2018029775W WO2019031547A1 WO 2019031547 A1 WO2019031547 A1 WO 2019031547A1 JP 2018029775 W JP2018029775 W JP 2018029775W WO 2019031547 A1 WO2019031547 A1 WO 2019031547A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- washer
- upper case
- slide bearing
- thrust slide
- case
- Prior art date
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/28—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram at least one of the arms itself being resilient, e.g. leaf spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/20—Sliding surface consisting mainly of plastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
Definitions
- the present invention relates to a thrust slide bearing, in particular, a thrust slide bearing incorporated as a slide bearing of a strut type suspension (McPherson strut) in a car.
- a thrust slide bearing incorporated as a slide bearing of a strut type suspension (McPherson strut) in a car.
- thrust slide bearings for a strut type suspension are disposed between an upper case and a center plate, and a center plate which is a slide bearing piece disposed between the upper case, the lower case, and the upper case and the lower case.
- the steel washer of Patent Document 1 is formed by press-forming (forging) a steel plate or the like, and connects an outer disk portion, an inner disk portion, an outer disk portion and an inner disk portion, and between them And a step portion forming a step.
- the thrust slide bearing is incorporated into the suspension by holding the steel washer between the rod and the nut of the suspension.
- an object of the present invention is to provide a thrust slide bearing capable of preventing a reduction in workability at the time of assembly or disassembly of a suspension without disassembling the upper case at the time of assembly or disassembly.
- a thrust slide bearing according to the present invention has an annular shape including an upper case, a washer made of a metal material, and a lower case rotatably combined with the upper case.
- the upper case has a washer support portion for supporting the washer
- the washer has an annular shape, and has an inner peripheral portion and an outer peripheral portion, and the outer peripheral portion of the washer Is covered by the washer support portion of the upper case, the upper case and the washer are integrally formed, and the inner peripheral portion of the washer protrudes inward from the washer support portion of the upper case ing.
- the washer may be made of a metal material subjected to a thermosetting process.
- the washer may be made of a metal material subjected to gas soft nitriding treatment.
- the washer may be flat.
- the washer may have a washer upper surface having a step and a flat washer lower surface, and the outer peripheral portion may be thinner than the inner peripheral portion.
- It may further comprise a center plate disposed between the upper case and the lower case.
- It may further comprise a lubricating sheet disposed between the upper case and the center plate.
- It may further comprise a lubricating sheet disposed between the lower case and the center plate.
- the washer may include a rotation preventing portion engaged with the washer supporting portion to prevent rotation of the washer with respect to the upper case.
- a thrust slide bearing capable of preventing a reduction in workability at the time of assembly or disassembly of a suspension without disengaging the upper case at assembly or disassembly.
- the partial section perspective view of the thrust slide bearing concerning a 1st embodiment of the present invention is shown.
- the disassembled perspective view of the thrust slide bearing concerning a 1st embodiment of the present invention is shown.
- (A) shows a plan view of the steel washer, and
- (b) shows a cross-sectional view of the steel washer along the IIb-IIb line of (a).
- the sectional view in the state where the thrust slide bearing concerning a 1st embodiment of the present invention was built into a strut type suspension is shown.
- the partial section perspective view of the thrust slide bearing concerning a 2nd embodiment of the present invention is shown.
- the partial section perspective view of the thrust slide bearing concerning a 3rd embodiment of the present invention is shown.
- the disassembled perspective view of the thrust slide bearing which concerns on the 3rd Embodiment of this invention is shown.
- a thrust slide bearing 1 according to a first embodiment of the present invention will be described with reference to the drawings.
- the thrust slide bearing 1 is a thrust slide bearing incorporated in a strut type suspension 50 (FIG. 4) in a four-wheeled vehicle, has a receiving hole 1a for receiving a strut assembly, and allows rotation of the strut assembly. , And supports the load of the vehicle body applied to the strut type suspension 50.
- FIG. 1 shows a partial sectional perspective view of the thrust slide bearing 1 according to the first embodiment
- FIG. 2 shows an exploded perspective view of the thrust slide bearing 1 according to the first embodiment
- 3 shows a plan view of the steel washer
- FIG. 3 (b) shows a cross-sectional view of the steel washer along the line IIb-IIb in FIG. 3 (a).
- the thrust slide bearing 1 has an annular shape, and includes an upper case 10, a steel washer 20, a lower case 30, and a center plate 40.
- the upper case 10 is made of a synthetic resin material excellent in slidability, and integrally has an annular washer support portion 11 having a through hole 10a, an upper cylindrical portion 12, and an upper projection portion 13.
- the washer support 11 includes an upper support 11A, a lower support 11B, and an outer support 11C.
- the upper cylindrical portion 12 has a cylindrical shape, and is provided on the lower case 30 side of the outer peripheral edge of the outer side support portion 11C of the washer support portion 11.
- the upper projection 13 has an annular shape, and is provided so as to project from the inner peripheral edge of the lower support 11B of the washer support 11 to the lower case 30 side.
- An annular recess 11 d is formed by the lower support 11 B of the washer support 11, the upper cylindrical portion 12, and the upper projection 13.
- the steel washer 20 has an annular and flat plate shape having a through hole 20a, is made of, for example, a steel material, and is subjected to a gas soft nitriding process.
- the gas soft nitriding process improves the rigidity and strength of the steel washer 20.
- the steel washer 20 has a planar washer upper surface 21, a planar washer lower surface 22, a washer inner circumferential surface 23, and a washer outer circumferential surface 24.
- the outer periphery 25 of the steel washer 20 is embedded in the upper case 10 by insert molding. That is, the washer outer peripheral surface 24 and the portions of the washer upper surface 21 and the washer lower surface 22 that constitute the outer peripheral portion 25 correspond to the upper support 11A, the lower support 11B, and the outer support of the washer support 11 of the upper case 10. It is covered by part 11C. Thus, the steel washer 20 is supported by the upper case 10, and the upper case 10 and the steel washer 20 are integrally configured. On the other hand, the inner circumferential portion 26 of the steel washer 20 protrudes inward from the washer support portion 11 of the upper case 10.
- the lower case 30 is made of a synthetic resin material excellent in slidability, has an annular shape having a through hole 30a, and includes the lower base 31, the outer protrusion 32, the inner protrusion 33, and the lower cylindrical portion 34. Prepare.
- the lower base 31 has an annular shape and is located below the washer support portion 11 of the upper case 10.
- the outer protrusion 32 has an annular shape, and protrudes from the upper outer peripheral edge of the lower base 31 toward the upper case 10.
- the inner protrusion 33 has an annular shape, and protrudes toward the upper case 10 from a position on the upper side of the lower base 31 and inside the outer protrusion 32.
- the lower cylindrical portion 34 has an annular shape, and protrudes from the lower inner peripheral edge of the lower base 31 toward the side opposite to the upper case 10 side.
- the lower base 31, the outer protrusion 32 and the inner protrusion 33 form an annular recess 35 for accommodating the center plate 40.
- the lower case 30 is rotatably combined with the upper case 10.
- the upper cylindrical portion 12 of the upper case 10 and the lower base 31 of the lower case 30 form a labyrinth clearance C which is a narrow gap that is bent.
- the center plate 40 is made of a synthetic resin material excellent in slidability, has an annular shape, is disposed in the annular recess 35 of the lower case 30, and is interposed between the upper case 10 and the lower case 30.
- the plate upper surface 41 of the center plate 40 is in contact with the washer support portion 11 of the upper case 10, and the plate lower surface 42 is in contact with the lower base 31 of the lower case 30.
- the center plate 40 is rotatably provided on the upper case 10 and the lower case 30.
- the plate upper surface 41 and the plate lower surface 42 of the center plate 40 are formed with a plurality of circumferentially extending grooves 41a and 42a.
- the plurality of grooves 41a and 42a serve as a reservoir of a lubricant such as grease.
- the outer protrusion 32 and the inner protrusion 33 of the lower case 30 and the center plate 40 form the upper cylindrical portion 12; It is configured to be located between the upper protrusion 13, that is, in the annular recess 11 d.
- the lower case 30 and the center plate 40 are configured to be rotatable relative to the upper case 10 and the steel washer 20.
- FIG. 4 shows a cross-sectional view of a strut type suspension 50 incorporating the thrust slide bearing 1 according to the present embodiment.
- the thrust slide bearing 1 of the present embodiment is a thrust slide bearing 1 incorporated in a strut type suspension 50 (McPherson type) in a four-wheeled vehicle, and is mounted on a vehicle body (not shown) It is.
- the suspension 50 includes a hydraulic shock absorber (not shown) including a piston rod 51, a damper coil spring 52, an upper spring seat member 53, a bump stopper 54, and a nut 55.
- the upper spring seat member 53 receives the upper end of the damper coil spring 52.
- the bump stopper 54 is provided to surround the piston rod 51.
- the attachment mechanism 60 includes an elastic member 62 such as rubber in which a core metal 61 is embedded, and a spacer member 63.
- the spacer member 63 has an annular shape, and is interposed between the upper spring seat member 53 and the lower base 31 of the lower case 30.
- the thrust slide bearing 1 is provided between the elastic member 62 of the attachment mechanism 60 and the upper spring seat member 53 of the suspension 50.
- a spacer member 63 is interposed between the thrust slide bearing 1 and the upper spring seat member 53.
- the elastic member 62 of the mounting mechanism 60 surrounds the thrust slide bearing 1 and is in contact with the upper case 10 of the thrust slide bearing 1.
- the piston rod 51 of the suspension 50 includes a rod large diameter portion 51A, a rod small diameter portion 51B, and a rod screw portion 51C.
- the rod large diameter portion 51 ⁇ / b> A is inserted into the lower case 30 of the thrust slide bearing 1.
- the rod small diameter portion 51B is formed continuously with the rod large diameter portion 51A, is formed smaller in diameter than the rod large diameter portion 51A, and is inserted into the steel washer 20.
- the rod screw portion 51C is formed continuously to the rod small diameter portion 51B.
- the steel washer 20 of the thrust slide bearing 1 is held by the step between the large diameter portion 51A of the rod and the small diameter portion 51B of the rod, and the nut 55 screwed on the rod screw portion 51C.
- the rod large diameter portion 51A is penetrated to the lower case 30 of the thrust slide bearing 1 with a predetermined gap in the radial direction. Even if a relative load is applied to the lower case 30 in the radial direction and a relative displacement occurs in the lower case 30 relative to the upper case 10 with the predetermined gap, the upper case 10 on the outer peripheral side and the inner peripheral side It is a gap for holding a radial gap with the lower case 30 so as not to cause a problem in relative rotation. Further, the elastic member 62 of the mounting mechanism 60 is in contact with the outer periphery of the nut 55.
- the upper case 10 of the thrust slide bearing 1 is held by the elastic member 62 of the mounting mechanism 60 and does not rotate. For this reason, the steel washer 20 held non-rotatably with respect to the upper case 10 also does not rotate.
- the lower case 30 is relatively relative to the upper case 10 Rotate.
- the lower case 30 is smoothly rotated by a synthetic resin center plate 40 disposed between the upper case 10 and the lower case 30, and the steering operation is also performed with almost no resistance.
- the outer peripheral portion 25 of the steel washer 20 is covered by the washer support portion 11 of the upper case 10, and the upper case 10 and the steel washer 20 are integrally configured.
- the three components of the integral upper case 10, the steel washer 20, the lower case 30, and the center plate 40 are assembled to manufacture the thrust slide bearing 1, so Assembly of the slide bearing 1 is facilitated.
- the upper case 10 and the steel washer 20 are integrated, the upper case 10 does not come off at the time of assembling or disassembling the suspension 50, and a decrease in workability can be prevented.
- the steel washer 20 is flat, it can be easily manufactured, and setting errors can be prevented, and the productivity of the thrust slide bearing 1 can be improved.
- the steel washer 20 is made of a metal material subjected to gas soft nitriding, the steel washer 20 has excellent rigidity and strength. Therefore, a durable thrust slide bearing 1 can be provided.
- thrust slide bearing 101 according to a second embodiment of the present invention will be described.
- the same reference number is attached, explanation is omitted, and only different composition is explained.
- FIG. 5 shows a partial cross-sectional perspective view of a thrust slide bearing 101 according to a second embodiment of the present invention.
- the washer upper surface 121 has a step
- the washer lower surface 122 has a planar shape
- the outer peripheral portion 125 is thinner than the inner peripheral portion 126. That is, the distance between the washer upper surface 121 on the outer peripheral portion 125 side and the washer lower surface 122 is shorter than the washer upper surface 121 on the inner peripheral portion 126 side.
- the upper support portion 111A of the washer support portion 111 of the upper case 110 is thicker than the upper support portion 11A of the upper case 10 of the thrust slide bearing 1 of the first embodiment. That is, the upper support portion 111A is configured to be thicker as the outer peripheral portion 125 of the steel washer 120 is thinner.
- the washer upper surface 121 has a step
- the washer lower surface 122 is flat
- the outer peripheral portion 125 is thinner than the inner peripheral portion 126.
- the upper support portion 111A of the washer support portion 111 of the upper case 110 which covers the outer peripheral portion 125 of the steel washer 120, can be made thicker, so that the strength of the upper case 110 can be improved.
- thrust slide bearing 201 according to a third embodiment of the present invention will be described.
- the same reference number is attached, explanation is omitted, and only different composition is explained.
- FIG. 6 shows a partial cross-sectional perspective view of a thrust slide bearing 201 according to a third embodiment of the present invention.
- FIG. 7 shows an exploded perspective view of a thrust slide bearing 201 according to a third embodiment of the present invention.
- the thrust slide bearing 201 according to the present embodiment is added to the upper case 10, the steel washer 20, the lower case 30, and the center plate 40 of the thrust slide bearing 1 according to the first embodiment.
- An annular lubricating sheet 70 is provided.
- the lubricating sheet 70 is provided between the upper case 10 and the center plate 40.
- the lubricating sheet 70 is made of polytetrafluoroethylene (PTFE), tetrafluoroethylene (TFE), a fluorine resin such as modified PTFE obtained by copolymerizing a small amount of other raw material (comonomer), polyacetal resin, polyethylene resin, polyamide resin, polyphenylene sulfide resin Etc. is made of thermoplastic resin excellent in sliding characteristics.
- the lubricating sheet 70 may optionally be made of PTFE (except when the thermoplastic is PTFE or modified PTFE), lubricating oil, silicone, lubricant such as graphite, and / or aramid fiber, glass fiber, carbon fiber And other reinforcements are added.
- the thickness of the lubricating sheet 70 varies depending on the material, but is, for example, 0.1 to 1 mm, preferably 0.2 to 0.7 mm.
- the front and back surfaces of the lubricating sheet 70 are preferably flat.
- the lubricating sheet 70 is provided between the upper case 10 and the center plate 40, but the lubricating sheet 70 may be provided between the lower case 30 and the center plate 40, or the upper case 10 and the center It may be provided both between the plate 40 and between the lower case 30 and the center plate 40. Furthermore, although the number of the lubricating sheets 70 was one, it may be plural.
- the projection 27 is provided on the steel washer 20 to prevent the rotation of the steel washer 20 with respect to the upper case 10
- a recess is formed in the steel washer 20 so that the recess and the upper case 10 are engaged. The rotation of the washer 20 with respect to the upper case 10 may be prevented.
- the steel washer 20 is made of a metal material subjected to gas soft nitriding treatment, but may be a metal material subjected to another heat hardening treatment such as quenching or carburizing.
- the heat curing process can provide the steel washer 20 with excellent strength.
- upper case 10,110 and steel washer 20,120 were comprised integrally by insert molding, for example, upper case 10,110 is set as the structure of upper and lower 2 division, and steel washer 20,120 The upper cases 10 and 110 and the steel washers 20 and 120 may be integrally configured by sandwiching the
- the center plate 40 is rotatable relative to the upper cases 10 and 110 and the lower case 30.
- the center plate 40 may not be provided, or the lower case 30 and the center plate may be provided.
- 40 may be an integral structure, or the upper cases 10, 110 and the center plate 40 may be an integral structure.
- one or more lubricating sheets 70 may be provided between the upper case 110 and the center plate 40 and / or between the lower case 30 and the center plate 40. You may provide.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Vehicle Body Suspensions (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
L'invention concerne un palier lisse de butée qui permet d'empêcher une diminution de l'aptitude au façonnage pendant l'assemblage ou le désassemblage d'une suspension, sans qu'un boîtier supérieur ne soit détaché. Plus précisément, l'invention concerne un palier lisse de butée annulaire (1), pourvu d'un boîtier supérieur (10) constitué d'un matériau de résine synthétique, d'une rondelle d'acier (20) constituée d'un matériau métallique, et d'un boîtier inférieur (30) combiné rotatif au boîtier supérieur (10). Le boîtier supérieur (10) comporte une partie support de rondelle (11) destinée à porter la rondelle d'acier (20). La rondelle d'acier (20) est annulaire et comporte une partie périphérique interne (26) et une partie périphérique externe (25). La partie périphérique externe (25) de la rondelle d'acier (20) est recouverte par la partie support de rondelle (11) du boîtier supérieur. Le boîtier supérieur (10) et la rondelle d'acier (20) sont formés d'un seul tenant. La partie périphérique interne (26) de la rondelle d'acier (20) fait saillie plus loin vers l'intérieur que la partie support de rondelle (11) du boîtier supérieur (10).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016171711 | 2016-09-02 | ||
JP2017155339A JP6746542B2 (ja) | 2016-09-02 | 2017-08-10 | スラスト滑り軸受 |
JP2017-155339 | 2017-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019031547A1 true WO2019031547A1 (fr) | 2019-02-14 |
Family
ID=61625536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2018/029775 WO2019031547A1 (fr) | 2016-09-02 | 2018-08-08 | Palier lisse de butée |
Country Status (2)
Country | Link |
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JP (1) | JP6746542B2 (fr) |
WO (1) | WO2019031547A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021092292A (ja) * | 2019-12-12 | 2021-06-17 | オイレス工業株式会社 | スラスト軸受、それを用いたサスペンション装置、及びスラスト軸受の製造方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002031180A (ja) * | 2000-07-13 | 2002-01-31 | Showa Corp | ストラットダンパ |
JP2004176728A (ja) * | 2002-10-03 | 2004-06-24 | Oiles Ind Co Ltd | 滑り軸受 |
JP2013177933A (ja) * | 2012-02-28 | 2013-09-09 | Oiles Corp | スラスト滑り軸受、およびスラスト滑り軸受とピストンロッドとの組合せ機構 |
-
2017
- 2017-08-10 JP JP2017155339A patent/JP6746542B2/ja active Active
-
2018
- 2018-08-08 WO PCT/JP2018/029775 patent/WO2019031547A1/fr active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002031180A (ja) * | 2000-07-13 | 2002-01-31 | Showa Corp | ストラットダンパ |
JP2004176728A (ja) * | 2002-10-03 | 2004-06-24 | Oiles Ind Co Ltd | 滑り軸受 |
JP2013177933A (ja) * | 2012-02-28 | 2013-09-09 | Oiles Corp | スラスト滑り軸受、およびスラスト滑り軸受とピストンロッドとの組合せ機構 |
Also Published As
Publication number | Publication date |
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JP2018040490A (ja) | 2018-03-15 |
JP6746542B2 (ja) | 2020-08-26 |
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