GB2347905A - A suspension arrangement having a bearing race incorporated within a resilient support element - Google Patents

A suspension arrangement having a bearing race incorporated within a resilient support element Download PDF

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Publication number
GB2347905A
GB2347905A GB9906447A GB9906447A GB2347905A GB 2347905 A GB2347905 A GB 2347905A GB 9906447 A GB9906447 A GB 9906447A GB 9906447 A GB9906447 A GB 9906447A GB 2347905 A GB2347905 A GB 2347905A
Authority
GB
United Kingdom
Prior art keywords
support element
bearing
suspension arrangement
resilient support
elastomeric material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9906447A
Other versions
GB9906447D0 (en
Inventor
Jer Me Kieffer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Laird Holdings Ltd
Original Assignee
Draftex Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Draftex Industries Ltd filed Critical Draftex Industries Ltd
Priority to GB9906447A priority Critical patent/GB2347905A/en
Publication of GB9906447D0 publication Critical patent/GB9906447D0/en
Publication of GB2347905A publication Critical patent/GB2347905A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
    • F16C27/066—Ball or roller bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
    • B60G11/16—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/30—Spring/Damper and/or actuator Units
    • B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
    • B60G2202/312—The spring being a wound spring
    • 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
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/128—Damper mount on vehicle body or chassis
    • 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
    • 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
    • B60G2204/45—Stops limiting travel
    • B60G2204/4502—Stops limiting travel using resilient buffer
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A vehicle suspension system has an upper strut portion 10 axially fixed to a rigid sleeve 14 carrying a resilient support member 18 made of elastomeric material such as rubber. A bearing 34 comprises upper and lower bearing races 36,38, the upper bearing race 38 being incorporated within the elastomeric material of the resilient support element 18 preferably during the moulding and subsequent vulcanisation thereof. A gripping and sealing lip 50 may be integrally provided with the elastomeric material of the resilient support element 18 and extends downwardly and protectively over the outside of the bearing 34.

Description

SUSPENSION ARRANGEMENTS The invention relates to suspension arrangements. Suspension arrangements embodying the invention, and to be described in more detail below by way of example only, are for use in vehicles.
According to the invention there is provided a vehicle suspension arrangement, including a coil spring acting upwardly against the body or chassis of the vehicle through the intermediary of a resilient support element made of elastomeric material, with a bearing interposed between the spring and the support element to permit relative rotary movement, the bearing being partially integrated into the elastomeric support element.
According to the invention, there is further provided a vehicle suspension arrangement of the MacPherson strut type, comprising a resilient support element made of moulded elastomeric material secured to the upper end of the upper strut thereof and incorporating means for securing it to the body of the vehicle, a coil spring surrounding the strut with its upper end received in a spring seat member, and a bearing interposed between the spring seat member and the resilient support element for permitting rotary movement between the spring seat member and the resilient support element about the axis of the strut, the bearing comprising first and second bearing races respectively carried by the spring seat member and the resilient support element and rotary bearing members acting on and between the races, the first race being integrally incorporated in the elastomeric material of the resilient support element.
Vehicle suspension arrangements embodying the invention will now be described, by way of example only, with reference to the accompanying diagrammatic drawings in which: Figure 1 is a cross-section through the upper part of one of the suspension arrangements; Figure 2 is an enlarged view of part of the suspension arrangement of Figure 1; and Figure 3 corresponds to Figure 2 but shows a modification.
The suspension arrangement shown in the Figures is of the MacPherson strut type. It is for suspending the chassis or body 5 of the vehicle from the axle (not shown) carrying a wheel (also not shown) of the vehicle, normally a front wheel of the vehicle. The suspension comprises a lower hollow cylindrical strut, not shown, which is secured to the axle and an upper strut 6 which is telescopically slidable in the lower strut, a shock absorber mechanism (not shown) acting between the slidable struts. The upper end 10 of the upper strut 6 is of reduced diameter providing a shoulder 12. The reduced diameter portion 10 extends through a metal sleeve 14 fixed to a metal ring 15 seated on the shoulder 12. The upper end of the sleeve 14 carries a cup-shaped metal flange 16. The flange 16 abuts against a fixture 17 secured to the upper end of the strut portion 10.
The sleeve 14 is solid with a stiff resilient support element 18 made of elastomeric material such as rubber which is reinforced by an aperture cup-shaped reinforcement 20.
The reinforcement 20 extends outside the rubber support 18 as shown at 22 where it is secured to the body 5 of the vehicle by several bolts of which one is shown at 24. The support element 18 is preferably made by moulding.
The spring force for the vehicle suspension is provided by a coil spring 28 (of which only the upper coil is shown). The lower end (not shown) of the spring 28 acts on the wheel axle, the spring extending upwardly, around the outsides of the lower suspension strut (not shown) and the upper suspension strut 6, and its upper end is seated in a shoulder 30 of a rigid metal spring seat member 32. A roller bearing indicated generally at 34 is positioned between the seat member 32 and the underside of the rubber support 18.
In this way, therefore, the vehicle body 5 is supported from the wheel axle by the spring 28 and the rubber support element 18, and the bearing 34 allows angular movement of the spring seat member 32 and the spring 28 around the axis of the suspension struts, to accommodate the steering movement of the front wheel. A shock absorber mechanism (not shown) acts between the relatively slidable lower suspension strut (not shown) and the upper strut 6 to control the movement of the suspension.
The resilient support element 18 minimises the transmission to the body 5 of vibrations caused by the operations of the suspension, in particular from the suspension struts. Maximum upward axial movement of the suspension strut 6 is limited by the eventual abutment of the ring 15 with a flange part 20A of the metal reinforcement 20. The rubber support element 18 provides an abutment portion 18A acting between the ring 8 and the flange 20A. Maximum downward movement of the upper strut 6 is limited by abutment between the flange 16 and a portion 20B of the metal reinforcement 20, the stiff rubber support element 18 providing an abutment portion 18B positioned between them.
The bearing 34 comprises a lower circular bearing race 36 made of steel of suitable hardness, an upper bearing race 38 also made of steel of suitable hardness and a suitable number of metal rollers 40 which are carried by a bearing cage 42 made of suitable plastics material. The bearing cage incorporates integral lips 44 and 46 which respectively seal against the lower and upper bearing races 36, 38 and help to retain grease within the bearing.
In accordance with a feature of the suspension arrangement, the upper bearing race 38 is secured directly to the rubber support element 18 during the latter's vulcanisation. The upper bearing race 38 has a generally flat and substantially horizontal circular portion 38A to transmit vertical force components to the support element 18 and a substantially vertical, cylindrical portion 38B for transmitting horizontal force components.
As shown more clearly in Figure 2, the rubber support element 18 is externally extended to form a circular gripping and sealing lip 48 which is integrally moulded with the support element 18. This lip 18 externally seals the bearing 34 against the ingress of water and moisture and against the egress of grease.
As shown in Figure 3, the lip 48 can be extended downwards and suitably enlarged to grip under a shoulder 50 formed in the boss 32.
A flexible bellows 52 externally surrounds the upper and lower suspension struts for protective purposes.

Claims (19)

1. A vehicle suspension arrangement, including a coil spring acting upwardly against the body or chassis of the vehicle through the intermediary of a resilient support element made of elastomeric material, with a bearing interposed between the spring and the support element to permit relative rotary movement, the bearing being partially integrated into the elastomeric support element.
2. A suspension element according to claim 1, in which the bearing comprises upper and lower bearing races with rotary bearing members therebetween, the upper bearing race being integrated within the elastomeric material of the support element.
3. A suspension arrangement according to claim 2, in which the support element is made by a moulding process and the upper bearing race is integrated into the material of the support element during the moulding thereof.
4. A suspension arrangement according to claim 3, in which the elastomeric material is rubber and the upper bearing race is integrated into the material of the support element during vulcanisation of the rubber.
5. A suspension arrangement according to any one of claims 2 to 4, in which the upper and lower bearing races are made of metal.
6. A suspension arrangement according to any preceding claim, including a rigid spring seat member receiving the upper end of the spring and interposed between the spring and the bearing.
7. A suspension arrangement according to any one of claims 2 to 5, including a rigid spring seat member receiving the upper end of the spring and interposed between the spring and the bearing, the rigid spring seat carrying the lower bearing race.
8. A suspension arrangement according to any preceding claim, in which the elastomeric material of the resilient support element has an external extension extending protectively around the bearing.
9. A suspension arrangement according to claim 8, in which the external extension of the resilient support element is in the form of a circular gripping and sealing lip.
10. A vehicle suspension arrangement of the MacPherson strut type, comprising a resilient support element made of moulded elastomeric material secured to the upper end of the upper strut thereof and incorporating means for securing it to the body of the vehicle, a coil spring surrounding the strut with its upper end received in a spring seat member, and a bearing interposed between the spring seat member and the resilient support element for permitting rotary movement between the spring seat member and the resilient support element about the axis of the strut, the bearing comprising first and second bearing races respectively carried by the spring seat member and the resilient support element and rotary bearing members acting on and between the races, the first race being integrally incorporated in the elastomeric material of the resilient support element.
11. A suspension arrangement according to claim 10, in which the first bearing race has a first generally planar portion extending generally perpendicular to the axis of the strut for transmitting axially directed force components from the spring to the elastomeric material of the resilient support element and an integral second generally planar portion substantially parallel to the axis of the strut for transmitting horizontal force components from the spring to the elastomeric material of the resilient support element.
12. A suspension arrangement according to claim 10 or 11, in which the elastomeric material of the resilient support element incorporates an embedded metal reinforcement which extends outwardly of the elastomeric material to provide the means for securing the resilient support means to the vehicle body.
13. A suspension arrangement according to any one of claims 10 to 12, in which the elastomeric material of the resilient support element has an external extension and integrally extended over the outside of the bearing for protective purposes.
14. A suspension arrangement according to claim 13, in which the extension of the elastomeric material of the resilient support element also extends over the spring seat member.
15. A suspension arrangement according to claim 13 or 14, in which the extension is in the form of a circular gripping and sealing lip extending around the axis of the strut.
16. A suspension arrangement according to any one of claims 10 to 15, in which the elastomeric material of the resilient support element is moulded material.
17. A suspension arrangement according to any one of claims 10 to 16, in which the elastomeric material is rubber and in which the first bearing race is incorporated into the rubber during vulcanisation thereof.
18. A vehicle suspension arrangement of the MacPherson strut type, substantially as described with reference to Figures 1 and 2 of the accompanying drawings.
19. A vehicle suspension arrangement of the MacPherson strut type, substantially as described with reference to Figures 1 and 2 of the accompanying drawings as modifed by Figure 3 thereof.
GB9906447A 1999-03-19 1999-03-19 A suspension arrangement having a bearing race incorporated within a resilient support element Withdrawn GB2347905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9906447A GB2347905A (en) 1999-03-19 1999-03-19 A suspension arrangement having a bearing race incorporated within a resilient support element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9906447A GB2347905A (en) 1999-03-19 1999-03-19 A suspension arrangement having a bearing race incorporated within a resilient support element

Publications (2)

Publication Number Publication Date
GB9906447D0 GB9906447D0 (en) 1999-05-12
GB2347905A true GB2347905A (en) 2000-09-20

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ID=10850032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9906447A Withdrawn GB2347905A (en) 1999-03-19 1999-03-19 A suspension arrangement having a bearing race incorporated within a resilient support element

Country Status (1)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10047773A1 (en) * 2000-09-27 2002-04-18 Ina Schaeffler Kg Axial roller bearing for strut in car wheel suspension has inner ring mounted on upper surface of strut and outer ring connected via flexible layer to mounting on chassis which contains reinforcing frame, part of which forms outer ring
FR2851500A1 (en) * 2003-02-25 2004-08-27 Zf Sachs Ag Suspension strut for vehicle, has spring seat with bearing having entry portion, and another bearing between stop plug and main linking bearing of piston rod, where functional separation exists between portion and latter bearing
WO2007022893A1 (en) * 2005-08-23 2007-03-01 Schaeffler Kg Strut bearing
WO2007085323A2 (en) * 2006-01-25 2007-08-02 Schaeffler Kg Top section of a suspension strut structure and corresponding suspension strut structure
FR2899154A1 (en) * 2006-03-31 2007-10-05 Snr Roulements Sa Bump stop device for e.g. motor vehicle`s Macpherson type strut, has intermediate support component with upper surface, and lower surface forming internal shoulder directly connected to bottom of monoblock pressed metal cup
WO2011006881A1 (en) * 2009-07-17 2011-01-20 Aktiebolaget Skf Thrust bearing and suspension for vehicle
US20120141061A1 (en) * 2009-06-12 2012-06-07 Bruno Montboeuf suspension stop and a motor vehicle fitted with such a stop
WO2015014760A1 (en) * 2013-07-30 2015-02-05 Ntn-Snr Roulements Thrust bearing for a vehicle suspension
US11046139B2 (en) 2015-12-08 2021-06-29 Aktiebolaget Skf Strut mount bearing unit
WO2022252145A1 (en) * 2021-06-02 2022-12-08 舍弗勒技术股份两合公司 Pillar bearing for vehicle suspension, and manufacturing method for bearing lower cover
US11548341B2 (en) * 2018-12-04 2023-01-10 Prospira Corporation Strut mount

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274655A (en) * 1979-10-29 1981-06-23 General Motors Corporation Resilient mount for MacPherson strut
DE3204816A1 (en) * 1981-02-13 1982-09-16 Fiat Auto S.p.A., 10100 Turin Upper anchorage system for a spring strut of a McPherson suspension
US4497523A (en) * 1983-02-28 1985-02-05 General Motors Corporation Modular suspension strut bearing
GB2143300A (en) * 1983-06-23 1985-02-06 Riv Officine Di Villar Perosa A resilient support for a front suspension shock absorber

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274655A (en) * 1979-10-29 1981-06-23 General Motors Corporation Resilient mount for MacPherson strut
DE3204816A1 (en) * 1981-02-13 1982-09-16 Fiat Auto S.p.A., 10100 Turin Upper anchorage system for a spring strut of a McPherson suspension
US4497523A (en) * 1983-02-28 1985-02-05 General Motors Corporation Modular suspension strut bearing
GB2143300A (en) * 1983-06-23 1985-02-06 Riv Officine Di Villar Perosa A resilient support for a front suspension shock absorber

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10047773A1 (en) * 2000-09-27 2002-04-18 Ina Schaeffler Kg Axial roller bearing for strut in car wheel suspension has inner ring mounted on upper surface of strut and outer ring connected via flexible layer to mounting on chassis which contains reinforcing frame, part of which forms outer ring
FR2851500A1 (en) * 2003-02-25 2004-08-27 Zf Sachs Ag Suspension strut for vehicle, has spring seat with bearing having entry portion, and another bearing between stop plug and main linking bearing of piston rod, where functional separation exists between portion and latter bearing
US7077248B2 (en) 2003-02-25 2006-07-18 Zf Sachs Ag Suspension strut unit with a stop buffer
WO2007022893A1 (en) * 2005-08-23 2007-03-01 Schaeffler Kg Strut bearing
WO2007085323A2 (en) * 2006-01-25 2007-08-02 Schaeffler Kg Top section of a suspension strut structure and corresponding suspension strut structure
WO2007085323A3 (en) * 2006-01-25 2007-11-22 Schaeffler Kg Top section of a suspension strut structure and corresponding suspension strut structure
FR2899154A1 (en) * 2006-03-31 2007-10-05 Snr Roulements Sa Bump stop device for e.g. motor vehicle`s Macpherson type strut, has intermediate support component with upper surface, and lower surface forming internal shoulder directly connected to bottom of monoblock pressed metal cup
CN102803763A (en) * 2009-06-12 2012-11-28 Skf公司 A suspension stop and a motor vehicle fitted with such a stop
CN102803763B (en) * 2009-06-12 2015-01-07 Skf公司 A suspension stop and a motor vehicle fitted with such a stop
US8783967B2 (en) * 2009-06-12 2014-07-22 Aktiebolaget Skf Suspension stop and a motor vehicle fitted with such a stop
US20120141061A1 (en) * 2009-06-12 2012-06-07 Bruno Montboeuf suspension stop and a motor vehicle fitted with such a stop
JP2012533710A (en) * 2009-07-17 2012-12-27 アクティエボラゲット・エスコーエッフ Thrust bearing and vehicle suspension
CN102498003A (en) * 2009-07-17 2012-06-13 Skf公司 Thrust bearing and suspension for vehicle
US8474846B2 (en) 2009-07-17 2013-07-02 Aktiebolaget Skf Thrust bearing and suspension for vehicle
FR2948066A1 (en) * 2009-07-17 2011-01-21 Skf Ab SUSPENSION STOP DEVICE AND FORCE LEG.
CN102498003B (en) * 2009-07-17 2014-12-10 Skf公司 Thrust bearing and suspension for vehicle
WO2011006881A1 (en) * 2009-07-17 2011-01-20 Aktiebolaget Skf Thrust bearing and suspension for vehicle
WO2015014758A1 (en) * 2013-07-30 2015-02-05 Ntn-Snr Roulements Thrust bearing for a vehicle suspension
WO2015014760A1 (en) * 2013-07-30 2015-02-05 Ntn-Snr Roulements Thrust bearing for a vehicle suspension
CN105408138A (en) * 2013-07-30 2016-03-16 Ntn-Snr轴承公司 Thrust bearing for a vehicle suspension
CN105408138B (en) * 2013-07-30 2017-10-03 Ntn-Snr轴承公司 Thrust bearing for vehicle suspension
RU2661030C2 (en) * 2013-07-30 2018-07-11 Нтн-Снр Рульман Thrust bearing for vehicle suspension
US11046139B2 (en) 2015-12-08 2021-06-29 Aktiebolaget Skf Strut mount bearing unit
US11548341B2 (en) * 2018-12-04 2023-01-10 Prospira Corporation Strut mount
WO2022252145A1 (en) * 2021-06-02 2022-12-08 舍弗勒技术股份两合公司 Pillar bearing for vehicle suspension, and manufacturing method for bearing lower cover

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Publication number Publication date
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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)