WO2018016500A1 - 滑り軸受 - Google Patents
滑り軸受 Download PDFInfo
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- WO2018016500A1 WO2018016500A1 PCT/JP2017/025998 JP2017025998W WO2018016500A1 WO 2018016500 A1 WO2018016500 A1 WO 2018016500A1 JP 2017025998 W JP2017025998 W JP 2017025998W WO 2018016500 A1 WO2018016500 A1 WO 2018016500A1
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- upper case
- lower case
- sliding bearing
- annular
- case
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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
- 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
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- 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
- B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
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- 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
- B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
- B60G15/068—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit specially adapted for MacPherson strut-type suspension
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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
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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
- F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
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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
- 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
- F16C33/10—Construction relative to lubrication
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/418—Bearings, e.g. ball or roller bearings
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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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/50—Lubricating properties
- F16C2202/52—Graphite
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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
- F16C2204/00—Metallic materials; Alloys
- F16C2204/10—Alloys based on copper
- F16C2204/14—Alloys based on copper with zinc as the next major constituent
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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
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/30—Fluoropolymers
- F16C2208/32—Polytetrafluorethylene [PTFE]
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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
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/60—Polyamides [PA]
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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
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/66—Acetals, e.g. polyoxymethylene [POM]
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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
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/70—Polyesters, e.g. polyethylene-terephthlate [PET], polybutylene-terephthlate [PBT]
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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
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/76—Polyolefins, e.g. polyproylene [PP]
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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
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein
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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
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/53—Spring-damper, e.g. gas springs
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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
- 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
- F16C33/10—Construction relative to lubrication
- F16C33/102—Construction relative to lubrication with grease as lubricant
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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
- 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
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
Definitions
- the present invention relates to a sliding bearing that supports a load to be supported, and particularly to a sliding bearing that supports a load of a vehicle body applied to a suspension.
- the strut suspension used for the front wheels of automobiles has a structure in which a coil spring is combined with a strut assembly including a piston rod and a hydraulic shock absorber, and the strut assembly rotates together with the coil spring by a steering operation. Therefore, in order to support the load applied to the strut suspension while allowing the strut assembly to rotate smoothly, the upper mount, which is a mechanism for attaching the strut assembly to the vehicle body, and the spring seat at the upper end of the coil spring are usually used. A bearing is disposed between the upper spring seat.
- Patent Document 1 discloses a sliding bearing made of synthetic resin as a bearing for a strut suspension.
- This sliding bearing is composed of a synthetic resin upper case attached to the upper mount side, a synthetic resin lower case attached to the upper spring seat side and rotatably coupled to the upper case, and between the upper case and the lower case.
- a synthetic resin center plate for smoothly rotating.
- a plurality of grooves functioning as a lubricating grease reservoir are formed on the bearing surface of the center plate, and these grooves are filled with lubricating grease.
- a dust seal that closes the gap between the upper case and the lower case connected to the annular space is disposed in the annular space.
- a dust seal closes a gap connected to the outside of the annular space formed by combining the upper case and the lower case. , Muddy water and the like can be prevented from entering the annular space, and therefore, dust, muddy water and the like can be prevented from entering the bearing surface of the center plate disposed in the annular space to reduce the sliding performance. be able to.
- the dust seal includes a cylindrical seal body and an annular lip portion formed integrally with the seal body.
- An elastic body such as polyurethane resin, polyester elastomer, or synthetic rubber is used for the dust seal in order to close the gap between the upper case and the lower case connected to the annular space when the lip portion contacts the wall surface of the annular space.
- a core metal is embedded in the seal body to increase the rigidity of the seal body.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sliding bearing that can prevent entry of dust, muddy water, and the like at a lower cost and has good sliding performance.
- one end of the upper case is formed on the outer peripheral side of the annular center plate disposed between the upper case and the lower case that are rotatably combined.
- an annular outer dust seal that contacts the lower case is arranged, and the outer dust seal is connected to the center plate at a connecting portion extending radially outward from the outer peripheral side of the center plate, so that the center plate and the outer dust seal are integrated with each other.
- an annular lubricating sheet having a sliding surface with the opposing surface is disposed between the center plate and the upper case and / or the lower case.
- the sliding bearing of the present invention is An upper case, A lower case rotatably combined with the upper case; An annular center plate disposed between the upper case and the lower case; An annular outer dust seal disposed on the outer peripheral side of the center plate; An annular lubricating sheet disposed between the center plate and the upper case and / or the lower case, The outer dust seal is One end abuts against the upper case or the lower case,
- the center plate is A connecting portion extending radially outward from the outer peripheral side of the center plate and connected to the outer dust seal;
- the lubricating sheet is At least one of the front surface and the back surface has a sliding surface that slides against the opposing surface.
- the sliding bearing is For example, it supports the load of the vehicle body applied to the strut suspension while allowing the strut assembly of the strut suspension to rotate.
- the upper case is attached to a mounting mechanism of the strut assembly to the vehicle body in a state where the strut assembly is inserted
- the lower case may be attached to a spring seat at an upper end portion of a coil spring combined with the strut assembly in a state where the strut assembly is inserted.
- an annular outer dust seal whose one end abuts against the upper case or the lower case is provided on the outer peripheral side of the annular center plate disposed between the upper case and the lower case that are rotatably combined. Since the outer dust seal is integrally formed with the center plate, the outer dust seal is bent by the load to be supported in the axial direction without embedding a cored bar in the outer dust seal and increasing the rigidity. Due to the reaction force, it is possible to obtain sufficient sealing performance to close the gap between the upper case where the center plate is disposed and the lower case. Moreover, it is not necessary to prepare an outer dust seal as a separate part, and the cost can be reduced accordingly.
- the lubricating sheet is disposed between the center plate and the upper case and / or the lower case, the outer dust seal and the outer dust seal are formed integrally with the outer dust seal, for example, to give elasticity to the outer dust seal. Even when an elastic body is used as the material of the center plate, excellent sliding performance can be realized. Therefore, according to the present invention, it is possible to prevent entry of dust, muddy water, and the like at lower cost, and to realize excellent sliding performance.
- FIG. 1A, FIG. 1B, and FIG. 1C are a plan view, a bottom view, and a front view of a plain bearing 1 according to an embodiment of the present invention
- FIG. FIG. 2 is a cross-sectional view taken along the line AA of the plain bearing 1 shown in FIG. 2A is an enlarged view of a portion A of the plain bearing 1 shown in FIG. 1D
- FIG. 2B is an enlarged view of a portion B of the plain bearing 1 shown in FIG. 1D
- 3A, 3B, and 3C are a plan view, a bottom view, and a front view of the upper case 2
- FIG. 3D is an upper case shown in FIG. 2 is a sectional view taken along line BB in FIG.
- FIG. 4A, 4B, and 4C are a plan view, a bottom view, and a front view of the lower case 3, and FIG. 4D is a lower case shown in FIG. 4A.
- FIG. 5A, 5B, and 5C are a plan view, a bottom view, and a front view of the dust seal-integrated center plate 4, and FIG. 5D is shown in FIG.
- FIG. 5 (E) is an enlarged view of portion C of the dust seal-integrated center plate 4 shown in FIG. 5 (D)
- FIG. 5 (F) is a cross-sectional view of the dust seal-integrated center plate 4 shown in FIG.
- FIG. 6 is an enlarged view of a portion D of the dust seal integrated center plate 4 shown in FIG.
- FIG. 6 (A) and 6 (B) are a plan view and a bottom view of the lubricating sheet 6, and FIG. 6 (C) is an EE cross-sectional view of the lubricating sheet 6 shown in FIG. 6 (A).
- FIG. 7A and FIG. 7B are diagrams for explaining the modified examples 1a and 1b of the plain bearing 1, and correspond to FIG. 2B.
- FIG. 8A and FIG. 8B are diagrams for explaining modified examples 1c and 1d of the sliding bearing 1, and correspond to FIG. 2B.
- FIG. 9A and FIG. 9B are diagrams for explaining modified examples 1e and 1f of the sliding bearing 1, and correspond to FIG. 2B.
- FIG. 10 is a view for explaining a modified example 1g of the slide bearing 1, and corresponds to FIG. 2 (B).
- FIG. 1A, FIG. 1B, and FIG. 1C are a plan view, a bottom view, and a front view of a plain bearing 1 according to the present embodiment
- FIG. FIG. 2 is a cross-sectional view taken along the line AA of the plain bearing 1 shown in FIG. 2A is an enlarged view of a portion A of the plain bearing 1 shown in FIG. 1D
- FIG. 2B is an enlarged view of a portion B of the plain bearing 1 shown in FIG. 1D. is there.
- the sliding bearing 1 includes a housing hole 10 for housing a strut assembly (not shown) of a strut suspension, and allows the strut assembly housed in the housing hole 10 to rotate. Supports the body load applied to the strut suspension.
- the plain bearing 1 includes an upper case 2, a lower case 3 that is rotatably combined with the upper case 2, and forms an annular space 5 between the upper case 2 and the annular space 5.
- the upper case 2 is formed of a thermoplastic resin having excellent sliding characteristics such as a polyacetal resin impregnated with lubricating oil as necessary, and the strut assembly strut assembly is inserted into the vehicle body in a state where the strut assembly is inserted. It is attached to an upper support (not shown) which is an attachment mechanism.
- FIG. 3A, 3B, and 3C are a plan view, a bottom view, and a front view of the upper case 2, and FIG. 3D is an upper case shown in FIG. 2 is a sectional view taken along line BB in FIG.
- the upper case 2 is formed on an annular upper case main body 21 having an insertion hole 20 for inserting a strut assembly, and an upper surface 22 of the upper case main body 21, and is attached to an upper support.
- an annular groove 25 formed on the lower surface 24 of the upper case main body 21 facing the lower case 3 and rotatably combined with the lower case 3, and a groove bottom 26 of the annular groove 25.
- an annular support target surface 27 that rotates relative to a thrust bearing surface 402 (see FIG. 5) of a later-described thrust bearing portion 40 of the dust seal-integrated center plate 4 and a lower case.
- a snap-fit portion 29 for attaching to 3.
- the snap fit portion 29 has a cylindrical shape that extends toward the lower case 3 along the axis O direction on the inner side (inner diameter side) of an inner peripheral surface 37 (see FIG. 4) described later of the lower case 3.
- the distal end portion 291 protrudes radially outward and engages with the engaged portion 38 (see FIG. 4) of the lower case 3.
- the tip end portion 291 of the snap fit portion 29 protrudes most toward the lower case 3 side on the lower surface 24 side of the upper case 2.
- annular barrier wall 28 that protrudes from the groove bottom 26 toward the lower surface 24 is formed on the outer peripheral side of the support target surface 27.
- the barrier wall 28 surrounds the outer peripheral side of the thrust bearing portion 40 of the dust seal-integrated center plate 4 disposed in the annular space 5, and lubricates the annular space 5 when a load is applied to the strut suspension. The grease is prevented from being pushed radially outward from the thrust bearing surface 402 of the thrust bearing portion 40 of the dust seal-integrated center plate 4.
- the lower case 3 is a resin molded body using a thermoplastic resin such as polyamide resin, and is a spring seat at the upper end of a coil spring (not shown) of the strut suspension in a state where the strut assembly of the strut suspension is inserted. It is attached to an upper spring seat (not shown).
- FIG. 4A, 4B, and 4C are a plan view, a bottom view, and a front view of the lower case 3, and FIG. 4D is a lower case shown in FIG. 4A.
- FIG. 4A, 4B, and 4C are a plan view, a bottom view, and a front view of the lower case 3, and FIG. 4D is a lower case shown in FIG. 4A.
- the lower case 3 is formed on a cylindrical lower case main body 31 having an insertion hole 30 for inserting a strut assembly and an upper surface 32 of the lower case main body 31 facing the upper case 2.
- an annular protrusion 33 that is inserted into the annular groove 25 formed in the lower surface 24 of the upper case body 21 of the upper case 2 to form the annular space 5;
- an annular mud guard 35 projecting radially outward from the outer peripheral surface 34 of the lower case body 31.
- a mounting surface 331 for mounting the thrust bearing portion 40 of the dust seal-integrated center plate 4 is formed on the upper surface 330 of the annular protrusion 33, and an arcuate shape is formed on the outer peripheral side of the mounting surface 331.
- a plurality of detents 332 are formed at equal intervals in the circumferential direction.
- the rotation stopper 332 engages with a connecting portion 43 (see FIG. 5), which will be described later, of the dust seal-integrated center plate 4 in the circumferential direction to prevent the dust seal-integrated center plate 4 from rotating, and the dust seal-integrated center plate. 4 is in contact with the outer peripheral side of the thrust bearing portion 40 to prevent the thrust bearing portion 40 from being deformed radially outward.
- rotation stoppers 332 are provided, but the same number of rotation stoppers 332 as the number of connecting portions 43 of the dust seal integrated center plate 4 may be provided. At this time, it is preferable to adjust the length of the arc of the rotation stopper 332 so that the width of the gap 334 in which the connecting portion 43 is disposed is made constant.
- the mud guard 35 protrudes radially outward from the outer peripheral surface 250 of the annular groove 25 of the upper case 2 from the outer peripheral surface 34 of the lower case main body 31 on the upper surface 32 side of the lower case main body 31, and on the lower surface 36 of the mud guard 35.
- the upper spring seat is attached.
- a locked portion 38 that locks with the tip portion 291 of the snap fit portion 29 of the upper case 2 is formed.
- the dust seal-integrated center plate 4 is made of a polyolefin-based thermoplastic elastomer, a polyester-based thermoplastic elastomer, a polyurethane-based thermoplastic elastomer to which a lubricant such as PTFE (polytetrafluoroethylene), lubricating oil, or silicone is added as necessary. It is formed of an elastic body excellent in sliding characteristics such as polyamide-based thermoplastic elastomer, and is transmitted to the upper case 2 while allowing free rotation between the upper case 2 and the lower case 3 in cooperation with the lubricating sheet 6. It supports the load of the vehicle body applied to the strut suspension. In addition, the dust seal integrated center plate 4 closes a gap connected to the outside of the annular space 5 to prevent foreign matters such as dust from entering the annular space 5.
- FIG. 5A, 5B, and 5C are a plan view, a bottom view, and a front view of the dust seal-integrated center plate 4, and FIG. 5D is shown in FIG.
- FIG. 5 (E) is an enlarged view of portion C of the dust seal-integrated center plate 4 shown in FIG. 5 (D)
- FIG. 5 (F) is a cross-sectional view of the dust seal-integrated center plate 4 shown in FIG.
- FIG. 6 is an enlarged view of a portion D of the dust seal integrated center plate 4 shown in FIG.
- the dust seal-integrated center plate 4 has an annular thrust bearing portion 40 and a cylindrical shape integrally formed with the thrust bearing portion 40 so as to protrude downward in the axial direction from the inner peripheral edge of the thrust bearing portion 40.
- a radial bearing part 41, a cylindrical outer dust seal part 42 disposed on the outer peripheral side of the thrust bearing part 40, and a connecting part 43 for connecting the thrust bearing part 40 and the outer dust seal part 42 are provided.
- the thrust bearing portion 40 includes a thrust bearing surface 402 formed on the upper surface 401 and an annular grease groove 403 formed on the thrust bearing surface 402 and functioning as a grease reservoir.
- the thrust bearing The surface 402 faces the support target surface 27 formed in the annular groove 25 of the upper case 2 via the lubricating sheet 6, and rotates relative to the support target surface 27.
- an annular recess 405 is formed at a position facing the grease groove 403 on the lower surface 404 opposite to the upper surface 401 where the thrust bearing surface 402 is formed.
- the radial bearing portion 41 includes a radial bearing surface 411 formed on the inner peripheral surface 410 and a grease groove 413 in the axial O direction formed on the radial bearing surface 411 and functioning as a grease reservoir.
- the outer dust seal portion 42 is in contact with a barrier wall 28 formed such that one end portion 420 in the axial direction protrudes downward from the groove bottom 26 of the annular groove 25 of the upper case 2, and the other end portion 421 in the axial direction It contacts the upper surface 330 of the annular protrusion 33 of the lower case 3. Thereby, a gap connected to the outside of the annular space 5 is closed, and foreign matters such as dust are prevented from entering the annular space 5.
- the outer dust seal portion 42 is formed thinner than the thrust bearing portion 40 and the radial bearing portion 41, and one end portion 420 contacting the upper case 2 side is inclined radially outward in the axial cross-sectional shape. Yes. For this reason, one end 420 of the outer dust seal portion 42 contacts the barrier 28 of the annular groove 25 of the upper case 2 while being bent (see FIG. 2). By the reaction force of the outer dust seal portion 42 acting on the load of the vehicle body applied to the strut suspension, a sufficient sealing property is obtained to close the gap connected to the outside of the annular space 5.
- the connecting portion 43 extends radially outward from the outer peripheral side of the thrust bearing portion 40 and is connected to the outer dust seal portion 42. Further, the connecting portion 43 has a circumferential width narrower than the gap 334 between the rotation stoppers 332 formed on the mounting surface 331 of the annular protrusion 33 of the lower case body 31 of the lower case 3. The thrust bearing portion 40 is placed on the placement surface 331 by being disposed in the gap 334. Then, the connecting portion 43 engages with the rotation stopper 332 in the circumferential direction, whereby rotation of the dust seal integrated center plate 4 is prevented. In the present embodiment, six connecting portions 43 are provided, but at least one connecting portion 43 may be provided.
- Lubricating sheet 6 has a sliding property such as fluororesin such as modified PTFE, polyacetal resin, polyethylene resin, polyamide resin, polyphenylene sulfide resin, etc. obtained by copolymerizing PTFE, TFE (tetrafluoroethylene) with other raw material (comonomer) in a small amount It is made of excellent thermoplastics and, if necessary, PTFE (except when the thermoplastic is PTFE or modified PTFE), lubricants such as lubricating oil, silicone, graphite, and / or aramid fibers, glass fibers A reinforcing material such as carbon fiber is added. Or it forms with the metal excellent in sliding characteristics, such as a brass alloy.
- fluororesin such as modified PTFE, polyacetal resin, polyethylene resin, polyamide resin, polyphenylene sulfide resin, etc. obtained by copolymerizing PTFE, TFE (tetrafluoroethylene) with other raw material (comonomer) in
- the lubricating sheet 6 is an annular member, and includes a support target surface 27 formed on the groove bottom 26 of the annular groove 25 of the upper case 2, and a thrust bearing surface 402 of the thrust bearing portion 40 of the dust seal integrated center plate 4. Arranged between. As a result, the thrust bearing surface 402 rotates relative to the support target surface 27 via the lubricating sheet 6.
- FIG. 6 (A) and 6 (B) are a plan view and a bottom view of the lubricating sheet 6, and FIG. 6 (C) is an EE cross-sectional view of the lubricating sheet 6 shown in FIG. 6 (A). .
- the lubricating sheet 6 is formed on the upper surface 60, the sliding surface 62 that slides on the support target surface 27 formed on the groove bottom 26 of the annular groove 25 of the upper case 2, and the lower surface 61. , And a sliding surface 63 that slides with the thrust bearing surface 402 of the thrust bearing portion 40 of the dust seal integrated center plate 4.
- the thickness of the lubricating sheet 6 varies depending on the material used, but is, for example, 0.1 mm to 1 mm, preferably 0.2 mm to 0.7 mm. Moreover, it is preferable that the lubricating sheet 6 is flat on both the front surface and the back surface.
- the dust seal-integrated center plate 4 is a circle between the connecting portion 43 and the rotation stopper 332 formed on the mounting surface 331 of the annular protrusion 33 of the lower case 3.
- the thrust bearing portion 40 is placed on the placement surface 331 in a state in which the rotation is blocked by the circumferential coupling, and the thrust bearing surface 402 of the thrust bearing portion 40 is interposed between the upper case 2 and the lubricating sheet 6. It rotates relative to the support target surface 27 of the annular groove 25.
- the radial bearing portion 41 is inserted inside the annular protrusion 33, and the radial bearing surface 411 of the radial bearing portion 41 slides with the inner peripheral surface 251 of the annular groove 25 of the upper case 2. Therefore, the dust seal integrated center plate 4 is supported by the upper spring seat attached to the lower surface 36 of the mud guard 35 of the lower case 3 and the coil spring of the strut suspension, and rotates between the upper case 2 and the lower case 3. While allowing, the load of the vehicle body applied to the strut suspension transmitted to the upper case 4 is supported.
- one end 420 in the axial direction of the outer dust seal portion 42 is the barrier 28 in the annular groove 25 of the upper case 2.
- the dust seal-integrated center plate 4 is disposed in the annular space 5 so that the other end 421 in the axial direction contacts the upper surface 330 of the annular protrusion 33 of the lower case 3. For this reason, even if a core metal is not embedded in the outer dust seal portion 42 to increase the rigidity, the reaction force of the outer dust seal portion 42 against the load of the vehicle body applied to the strut suspension is used to close the gap connected to the outside of the annular space 5. Sufficient sealing performance can be obtained.
- the outer dust seal portion 42 is connected to the thrust bearing portion 40 by a connecting portion 43 that extends radially outward from the outer peripheral side of the thrust bearing portion 40, and is formed integrally with the thrust bearing portion 40. ing. For this reason, it is not necessary to prepare the outer dust seal part 42 as a separate part, and the cost can be reduced accordingly.
- the lubricating sheet 6 is disposed between the thrust bearing surface 402 of the thrust bearing portion 40 and the support target surface 27 of the annular groove 25 of the upper case 2. For this reason, since elasticity is provided to the outer dust seal portion 42, even when an elastomer is used as the material of the dust seal integrated center plate 4, excellent sliding performance can be realized.
- the dust seal-integrated center plate 4 is provided with a cylindrical radial bearing portion 41 that protrudes axially downward from the inner peripheral edge of the thrust bearing portion 40 and is integrally formed with the thrust bearing portion 40.
- the radial bearing surface 411 is slid with the inner peripheral surface 251 of the annular groove 25 of the upper case 2. Therefore, according to this embodiment, in addition to the load in the thrust direction of the vehicle body applied to the strut suspension, the radial load can be supported while allowing the upper case 2 and the lower case 3 to rotate. it can.
- the thrust bearing surface 402 can be covered with the lubricating grease film, and the strut suspension can be applied to the strut suspension while allowing the strut assembly of the strut suspension to rotate smoothly for a longer period of time.
- the applied vehicle body load can be supported.
- annular recess 405 is formed at a position facing the grease groove 403 of the thrust bearing surface 402 on the lower surface 404 opposite to the upper surface 401 where the thrust bearing surface 402 of the thrust bearing portion 40 is formed. Is forming. For this reason, it is possible to prevent the groove bottom of the grease groove 403 of the thrust bearing surface 402 from being lifted to the upper case 2 side by the force applied to the thrust bearing portion 40 from the mounting surface 331 of the annular protrusion 33 of the lower case 3. Therefore, according to the present embodiment, it is possible to prevent the grease in the grease groove 403 from overflowing from the grease groove 403, thereby maintaining the grease in the grease groove 403 for a longer period of sliding. The performance can be maintained.
- an arc-shaped detent 332 is formed on the outer peripheral side of the mounting surface 331 formed on the upper surface 330 of the annular protrusion 33 of the lower case 3.
- the rotation stopper 332 engages with the connecting portion 43 of the dust seal-integrated center plate 4 in the circumferential direction to prevent the dust seal-integrated center plate 4 from rotating and the thrust bearing portion 40 of the dust seal-integrated center plate 4.
- the thrust bearing portion 40 is prevented from being deformed radially outward by the load of the vehicle body applied to the strut suspension. Therefore, according to the present embodiment, it is possible to prevent the outer dust seal portion 42 from being displaced due to the radial deformation of the thrust bearing portion 40 and the sealing performance of the outer dust seal portion 42 from being deteriorated. it can.
- annular mud guard 35 is provided in the lower case 3, and the mud guard 35 is connected to the annular groove 25 of the upper case 2 from the outer peripheral surface 34 of the lower case body 31 on the upper surface 32 side of the lower case body 31.
- the outer peripheral surface 250 is projected outward in the radial direction. For this reason, mud water or the like that jumps from the road surface to the vehicle body while the vehicle is running can be prevented by the mud guard 35, and mud water or the like can be more efficiently prevented from entering the annular space 5 of the slide bearing 1.
- the snap fit portion 29 has a cylindrical shape extending toward the lower case 3 along the axis O direction, and the tip fit portion 291 is engaged with the locked portion 38 of the lower case 3.
- the upper case 2 is formed on the inner peripheral side (inside the inner peripheral surface 37 of the lower case 3).
- the tip end portion 291 of the snap fit portion 29 protrudes radially outward, and protrudes most toward the lower case 3 side on the lower surface 24 side of the upper case 2. Therefore, according to the present embodiment, the upper case 2 is made of resin as compared with the case where the snap fit portion is provided on the outer peripheral side of the upper case 2 and the tip end portion of the snap fit portion protrudes radially inward.
- molding can be simplified. Specifically, when the snap fit portion is provided on the outer peripheral side of the upper case 2 and the tip end portion of the snap fit portion protrudes radially inward, the mold is divided into a plurality of portions and radially inward. The slide for forming the front-end
- An annular barrier 28 surrounding the outer peripheral side of the bearing portion 40 is provided. The barrier 28 prevents the lubricating grease filled in the annular space 5 from being pushed radially outward from the thrust bearing surface 402 of the thrust bearing portion 40 when a load is applied to the strut suspension.
- the thrust bearing surface 402 can be more reliably covered with the lubricating grease film. Therefore, according to the present embodiment, it is possible to support the load of the vehicle body applied to the strut suspension while allowing the strut assembly of the strut suspension to smoothly rotate for a longer period of time.
- one end 420 in the axial direction of the outer dust seal portion 42 is in the annular groove 25 of the upper case 2.
- the dust seal integrated center plate 4 is disposed in the annular space 5 so that the other end 421 in the axial direction is in contact with the upper wall 330 of the annular protrusion 33 of the lower case 3.
- the dust seal-integrated center plate 4 may be disposed in the annular space 5 so that one end 420 in the axial direction of the outer dust seal portion 42 contacts the barrier 28 in the annular groove 25 of the upper case 2.
- the thrust bearing portion 40 formed integrally with the outer dust seal portion 42 is fixed on the mounting surface 331 of the annular protrusion 33 of the lower case 3, the outer dust seal portion 42 bends and reacts. By generating the above, it is possible to obtain a sealing property sufficient to close the gap connected to the outside of the annular space 5. In this case, the other end 421 in the axial direction may be omitted.
- a plurality of lubricating sheets 6 may be disposed between the support target surface 27 and the thrust bearing surface 402 as in a modified example 1a of the sliding bearing 1 shown in FIG.
- a plurality of lubrication sheets 6 are stacked and slid between the lubrication sheets 6, so that between the lubrication sheet 6 and the lubrication sheet 6, between the support target surface 27 and the lubrication sheet 6, and between the thrust bearing surface 402 and the lubrication sheet. 6 can be shortened to reduce the wear and extend the life.
- a concave portion for mounting the lubricating sheet 6 may be provided on the support target surface 27 of the annular groove 25 of the upper case 2, and at least one lubricating sheet 6 may be disposed in the concave portion.
- the depth of this recessed part is set more than the thickness of the lubricating sheet 6, for example.
- the radial bearing portion 41 is the same as the case where the lubricating sheet 6 is disposed between the thrust bearing surface 402 of the thrust bearing portion 40 and the support target surface 27 of the annular groove 25 of the upper case 2.
- a lubricating sheet may also be disposed between the radial bearing surface 411 and the inner peripheral surface 251 of the annular groove 25 of the upper case 2.
- the annular thrust seat portion 64 is formed integrally with the inner peripheral edge of the thrust seat portion 64 and is disposed between the radial bearing surface 411 of the radial bearing portion 41 and the inner peripheral surface 251 of the annular groove 25 of the upper case 2.
- the lubricating sheet 6a formed integrally with the radial sheet portion 65 may be used.
- the detent 332 is formed on the outer peripheral side of the mounting surface 331 formed on the upper surface 330 of the annular protrusion 33 of the lower case 3.
- a detent is formed on the outer peripheral side of the support target surface 27 formed on the groove bottom 26 of the annular groove 25 of the upper case 2, and this detent is engaged with the connecting portion 43 of the dust seal integrated center plate 4 in the circumferential direction.
- the thrust bearing portion 40 is brought into contact with the outer peripheral side of the thrust bearing portion 40 of the dust seal-integrated center plate 4 by the load of the vehicle body applied to the strut suspension.
- the deformation outward in the radial direction may be prevented.
- a thrust bearing surface is formed on the lower surface 404 of the thrust bearing portion 40, and this thrust bearing surface is slidably brought into contact with the mounting surface 331 of the annular protrusion 33 of the lower case 3.
- one end 420 in the axial direction of the outer dust seal portion 42 of the dust seal integrated center plate 4 is formed so as to protrude downward from the groove bottom 26 of the annular groove 25 of the upper case 2.
- the groove bottom 26 of the annular groove 25 is contacted.
- the present invention is not limited to this.
- one end 420 of the outer dust seal portion 42 may be brought into direct contact with the groove bottom 26 of the annular groove 25 as in a modified example 1g of the sliding bearing 1 shown in FIG.
- one end 420 of the outer dust seal 42 that contacts the groove bottom 26 side of the annular groove 25 of the upper case 2 is arranged in the radial direction. It is inclined outward (see FIG. 2).
- the outer dust seal portion 42 only needs to have at least one of both end portions 420 and 421 inclined radially outward or radially inward in the axial sectional shape.
- a dust seal integrated center having an outer dust seal portion 42a in which both end portions 420 and 421 are inclined radially outward.
- the plate 4a may be used.
- the end 421 that contacts the upper surface 330 side of the annular protrusion 33 of the lower case 3 is radially inward.
- a dust seal integrated center plate 4b having an inclined outer dust seal portion 42b may be used.
- the annular space is formed via the gap 50 (see FIG. 2) between the inner peripheral surface 251 of the annular groove 25 of the upper case 2 and the inner peripheral surface 335 of the annular protrusion 33 of the lower case 3.
- a dust seal for closing the gap 50 may be added.
- an inner dust seal portion 44 that closes the gap 50 connected to the annular space 5 is integrated with the end portion 412 of the radial bearing portion 41 on the lower case 3 side.
- the dust seal integrated center plate 4c may be used.
- a grease groove that functions as a grease reservoir may be formed in the radial bearing surface 411 of the radial bearing portion 41 as well as the thrust bearing surface 402 of the thrust bearing portion 40.
- a dust seal integrated center having a radial bearing portion 41a in which an annular grease groove 413 functioning as a grease reservoir is formed on the radial bearing surface 411.
- the plate 4d may be used.
- the dust seal integrated center plate 4 is placed and fixed on the lower case 3, but the dust seal integrated center plate 4 is rotatably mounted on the lower case 3. Also good. That is, similarly to the upper surface 401 of the thrust bearing portion 40, a thrust bearing surface is formed on the lower surface 404 of the thrust bearing portion 40, and this thrust bearing surface is slid with the mounting surface 331 of the annular protrusion 33 of the lower case 3. It may be movably contacted. In this case, the rotation stopper 332 disposed on the outer peripheral side of the mounting surface 331 of the annular protrusion 33 is omitted. Further, the concave portion 405 is not necessary on the lower surface 404 of the thrust bearing portion 40.
- a grease groove may be formed also on this thrust bearing surface.
- at least one lubricating sheet 6 may be disposed between the thrust bearing surface formed on the lower surface 404 of the thrust bearing portion 40 and the placement surface 331 of the annular protrusion 33 of the lower case 3.
- both end portions 420 and 421 of the outer dust seal portion 42 of the dust seal-integrated center plate 4 are inclined so that the groove bottom 26 of the annular groove 25 of the upper case 2 and the upper surface 330 of the annular protrusion 33 of the lower case 3 are respectively. It is preferable to make it contact
- the dust seal integrated center plate 4 may be formed integrally with the lower case 3. In this case, it is not necessary to form the arc-shaped detent 332 on the outer peripheral side of the mounting surface 331 of the lower case 3. Further, in the annular space 5 formed by combining the upper case 2 and the lower case 3, one end 420 in the axial direction of the outer dust seal portion 42 includes the barrier 28 in the annular groove 25 of the upper case 2. A dust seal integrated center plate 4 formed integrally with the lower case 3 is disposed in the annular space 5 so as to be in contact with the lower case 3.
- the dust seal integrated center plate 4 may be formed integrally with the upper case 2. Also in this case, it is not necessary to form the arc-shaped detent 332 on the outer peripheral side of the mounting surface 331 of the lower case 3.
- the lubricating sheet 6 is disposed between the dust seal-integrated center plate 4 formed integrally with the upper case 2 and the mounting surface 331 of the annular protrusion 33 of the lower case 3. Further, in the annular space 5 formed by combining the upper case 2 and the lower case 3, the other end 421 in the axial direction of the outer dust seal portion 42 comes into contact with the upper surface 330 of the annular protrusion 33 of the lower case 3.
- the dust seal integrated center plate 4 formed integrally with the upper case 2 is disposed in the annular space 5.
- annular recess is formed at a position facing the grease groove 403 of the thrust bearing surface 402 on the lower surface 404 opposite to the upper surface 401 where the thrust bearing surface 402 of the thrust bearing portion 40 is formed. 405 is formed.
- the lower surface 404 of the thrust bearing portion 40 may be a flat surface. Even in this case, the same effect as the above-described embodiment can be obtained except for the effect of the annular recess 405.
- an annular recess may be provided on the mounting surface 331 of the annular protrusion 33 of the lower case 3. In this case, the same effect as the above embodiment can be obtained.
- the sliding bearing according to the present invention is applied to a strut suspension.
- the present invention is not limited.
- the sliding bearing of the present invention is not limited to a strut suspension, and supports loads while allowing rotation in various mechanisms including other types of suspension such as a double wishbone suspension, a multi-link suspension, an air suspension, and the like. It can be widely applied to sliding bearings.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Vehicle Body Suspensions (AREA)
- Sliding-Contact Bearings (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
アッパーケースと、
前記アッパーケースに回動自在に組み合わされたロワーケースと、
前記アッパーケースと前記ロワーケースとの間に配置された環状のセンタープレートと、
前記センタープレートの外周側に配置された環状のアウターダストシールと、
前記センタープレートと前記アッパーケースおよび/または前記ロワーケースとの間に配置された環状の潤滑シートと、を備え、
前記アウターダストシールは、
一方の端部が前記アッパーケースあるいは前記ロワーケースと当接し、
前記センタープレートは、
前記センタープレートの外周側から径方向外方に延びて前記アウターダストシールと連結する連結部を有し、
前記潤滑シートは、
対面する相手面と摺動する摺動面を表面および裏面の少なくとも一方に有する。
例えば、ストラット式サスペンションのストラットアッセンブリの回動を許容しつつ、ストラット式サスペンションに加わる車体の荷重を支持するものであり、
前記アッパーケースは、前記ストラットアッセンブリが挿入された状態で当該ストラットアッセンブリの前記車体への取付機構に取り付けられ、
前記ロワーケースは、前記ストラットアッセンブリが挿入された状態で前記ストラットアッセンブリに組み合わせられたコイルスプリングの上端部のばね座に取り付けられるものでもよい。
Claims (18)
- アッパーケースと、
前記アッパーケースに回動自在に組み合わされたロワーケースと、
前記アッパーケースと前記ロワーケースとの間に配置された環状のセンタープレートと、
前記センタープレートの外周側に配置された環状のアウターダストシールと、
前記センタープレートと前記アッパーケースおよび/または前記ロワーケースとの間に配置された環状の潤滑シートと、を備え、
前記アウターダストシールは、
一方の端部が前記アッパーケースあるいは前記ロワーケースと当接し、
前記センタープレートは、
前記センタープレートの外周側から径方向外方に延びて前記アウターダストシールと連結する連結部を有し、
前記潤滑シートは、
対面する相手面と摺動する摺動面を表面および裏面の少なくとも一方に有する
ことを特徴とする滑り軸受。 - 請求項1に記載の滑り軸受であって、
前記アウターダストシールは、
一方の端部が前記アッパーケースと当接し、他方の端部が前記ロワーケースと当接する
ことを特徴とする滑り軸受。 - 請求項1または2に記載の滑り軸受であって、
前記アッパーケースは、
前記ロワーケースとの対向面に形成された環状溝を有し、
前記アウターダストシールは、
前記一方の端部が前記アッパーケースの前記環状溝の溝底と当接する
ことを特徴とする滑り軸受。 - 請求項3に記載の滑り軸受であって、
前記アウターダストシールは、
前記一方の端部が前記アッパーケースの前記環状溝の溝底に形成された防壁と当接する
ことを特徴とする滑り軸受。 - 請求項3または4に記載の滑り軸受であって、
前記ロワーケースは、
前記ロワーケースの外周面から前記アッパーケースの前記環状溝の外周面より径方向外方に張り出した環状のマッドガードをさらに有する
ことを特徴とする滑り軸受。 - 請求項3ないし5のいずれか一項に記載の滑り軸受であって、
前記アッパーケースは、
前記アッパーケースの前記環状溝に形成され、前記潤滑シートを装着するための凹部をさらに有する
ことを特徴とする滑り軸受。 - 請求項1ないし6のいずれか一項に記載の滑り軸受であって、
互いに摺動可能に積み重ねられた複数の前記潤滑シートを備える
ことを特徴とする滑り軸受。 - 請求項1ないし7のいずれか一項に記載の滑り軸受であって、
前記センタープレートは、
スラスト方向において前記アッパーケースと前記ロワーケースとの間に配置された環状のスラスト軸受部と、
前記スラスト軸受部の内周縁と一体的に形成され、ラジアル方向において前記アッパーケースと前記ロワーケースとの間に配置された筒状のラジアル軸受部と、を有する
ことを特徴とする滑り軸受。 - 請求項8に記載の滑り軸受であって、
前記潤滑シートは、
前記スラスト軸受部と前記アッパーケースおよび/または前記ロワーケースとの間に配置された環状のスラストシートと、
前記スラストシートの内周縁と一体的に形成され、前記ラジアル軸受部と前記アッパーケースおよび/または前記ロワーケースとの間に配置された筒状のラジアルシートと、を有する
ことを特徴とする滑り軸受。 - 請求項8または9に記載の滑り軸受であって、
前記ラジアル軸受部の端部に一体的に形成され、前記アッパーケースあるいは前記ロワーケースと当接する環状のインナーダストシールをさらに有する
ことを特徴とする滑り軸受。 - 請求項8ないし10のいずれか一項に記載の滑り軸受であって、
前記スラスト軸受部は、
前記潤滑シートとの対向面に形成され、グリース溜りとして機能する円環状のグリース溝を有する
ことを特徴とする滑り軸受。 - 請求項11に記載の滑り軸受であって、
前記スラスト軸受部は、
前記グリース溝を有する面と反対側の面に形成された円環状の凹部をさらに有する
ことを特徴とする滑り軸受。 - 請求項8ないし12いずれか一項に記載の滑り軸受であって、
前記ロワーケースの前記アッパーケースとの対向面あるいは前記アッパーケースの前記ロワーケースとの対向面に形成され、前記スラスト軸受部の前記連結部と円周方向に係合して前記スラスト軸受部および前記アウターダストシールの回転を防止するとともに、前記スラスト軸受部の外周側と当接して前記スラスト軸受部の径方向外方への変形を阻止する回り止めをさらに有する
ことを特徴とする滑り軸受。 - 請求項8ないし13のいずれか一項に記載の滑り軸受であって
前記ロワーケースは、
前記アッパーケースとの対向面に形成された環状突部を有し、
前記スラスト軸受部は、
前記ロワーケースの前記環状突部上に載置され、前記潤滑シートを介して、前記アッパーケースの前記ロワーケースとの対向面に形成された支持対象面と摺接することにより、前記アッパーケースおよび前記ロワーケース間の回動を許容しつつ、前記アッパーケースに加えられた荷重を支持し、
前記アウターダストシールは、
前記ロワーケースの前記環状突部の外周側に配置されていている
ことを特徴とする滑り軸受。 - 請求項1ないし11のいずれか一項に記載の滑り軸受であって、
前記センタープレートは、
前記ロワーケースと一体的に形成されており、
前記潤滑シートは、
前記センタープレートと前記アッパーケースとの間に配置されている
ことを特徴とする滑り軸受。 - 請求項1ないし11のいずれか一項に記載の滑り軸受であって、
前記センタープレートは、
前記アッパーケースと一体的に形成されており、
前記潤滑シートは、
前記センタープレートと前記ロワーケースとの間に配置されている
ことを特徴とする滑り軸受。 - 請求項1ないし16のいずれか一項に記載の滑り軸受であって、
前記ロワーケースは、
被係止部を有する内周面を備えた環状部材であり、
前記アッパーケースは、
前記ロワーケースの前記内周面よりも内側において、軸方向に沿って前記ロワーケース側へ延び、端部が径方向外方に張り出して前記ロワーケースの前記内周面の前記被係止部と係止するスナップフィット部を有し、
前記スナップフィット部の前記端部は、
前記ロワーケースとの対向面側において、最も前記ロワーケース側へ突出している
ことを特徴とする滑り軸受。 - 請求項1ないし17のいずれか一項に記載の滑り軸受であって、
前記滑り軸受は、
ストラット式サスペンションのストラットアッセンブリの回動を許容しつつ、ストラット式サスペンションに加わる車体の荷重を支持するものであり、
前記アッパーケースは、
前記ストラットアッセンブリが挿入された状態で当該ストラットアッセンブリの前記車体への取付機構に取り付けられ、
前記ロワーケースは、
前記ストラットアッセンブリが挿入された状態で前記ストラットアッセンブリに組み合わせられたコイルスプリングの上端部のばね座に取り付けられる
ことを特徴とする滑り軸受。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17831016.5A EP3489535B1 (en) | 2016-07-19 | 2017-07-18 | Slide bearing |
JP2018528819A JP6909789B2 (ja) | 2016-07-19 | 2017-07-18 | 滑り軸受 |
KR1020197002510A KR102361216B1 (ko) | 2016-07-19 | 2017-07-18 | 미끄럼 베어링 |
CN201780039984.6A CN109416078B (zh) | 2016-07-19 | 2017-07-18 | 滑动轴承 |
BR112019001017-3A BR112019001017A2 (pt) | 2016-07-19 | 2017-07-18 | rolamento deslizante |
US16/318,834 US10746224B2 (en) | 2016-07-19 | 2017-07-18 | Slide bearing |
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JP2016141651 | 2016-07-19 | ||
JP2016-141651 | 2016-07-19 |
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WO2018016500A1 true WO2018016500A1 (ja) | 2018-01-25 |
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PCT/JP2017/025998 WO2018016500A1 (ja) | 2016-07-19 | 2017-07-18 | 滑り軸受 |
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US (1) | US10746224B2 (ja) |
EP (1) | EP3489535B1 (ja) |
JP (1) | JP6909789B2 (ja) |
KR (1) | KR102361216B1 (ja) |
CN (1) | CN109416078B (ja) |
BR (1) | BR112019001017A2 (ja) |
WO (1) | WO2018016500A1 (ja) |
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JP2019152315A (ja) * | 2018-03-06 | 2019-09-12 | オイレス工業株式会社 | スプリングシートおよびサスペンション取付構造 |
CN114087344A (zh) * | 2021-11-19 | 2022-02-25 | 广东华于科技股份有限公司 | 一种用于输出轴上的油封座 |
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EP3693625B1 (en) * | 2017-10-06 | 2024-06-12 | Oiles Corporation | Slide bearing |
EP3892873B1 (en) * | 2020-04-10 | 2022-08-31 | Roller Bearing Company of America, Inc. | Inner and outer seal assembly; thrust bearing assembly with such seals for maintenance-free operation |
KR20210150083A (ko) * | 2020-06-03 | 2021-12-10 | 현대모비스 주식회사 | 차량용 회전유도장치 |
FR3125463B1 (fr) * | 2021-07-23 | 2023-06-16 | Skf Svenska Kullagerfab Ab | Dispositif de butée de suspension à joint d’étanchéité |
KR20240010330A (ko) * | 2022-07-15 | 2024-01-23 | 주식회사 일진 | 차량용 스트럿 베어링 어셈블리 |
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JPWO2018016500A1 (ja) | 2019-05-09 |
EP3489535B1 (en) | 2024-10-09 |
CN109416078A (zh) | 2019-03-01 |
US10746224B2 (en) | 2020-08-18 |
KR102361216B1 (ko) | 2022-02-10 |
BR112019001017A2 (pt) | 2019-05-14 |
CN109416078B (zh) | 2021-02-02 |
JP6909789B2 (ja) | 2021-07-28 |
EP3489535A4 (en) | 2020-03-11 |
EP3489535A1 (en) | 2019-05-29 |
US20190277336A1 (en) | 2019-09-12 |
KR20190031247A (ko) | 2019-03-25 |
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