[go: up one dir, main page]

WO2001042680A1 - Moyeu resilient - Google Patents

Moyeu resilient Download PDF

Info

Publication number
WO2001042680A1
WO2001042680A1 PCT/GB2000/004676 GB0004676W WO0142680A1 WO 2001042680 A1 WO2001042680 A1 WO 2001042680A1 GB 0004676 W GB0004676 W GB 0004676W WO 0142680 A1 WO0142680 A1 WO 0142680A1
Authority
WO
WIPO (PCT)
Prior art keywords
members
bush according
resilient bush
rigid
support members
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.)
Ceased
Application number
PCT/GB2000/004676
Other languages
English (en)
Inventor
Peter Thomas Court
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.)
BTR Industries Ltd
Trelleborg AB
Original Assignee
BTR Industries Ltd
Trelleborg AB
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 BTR Industries Ltd, Trelleborg AB filed Critical BTR Industries Ltd
Priority to AU21896/01A priority Critical patent/AU2189601A/en
Publication of WO2001042680A1 publication Critical patent/WO2001042680A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
    • F16F13/16—Units of the bushing type, i.e. loaded predominantly radially specially adapted for receiving axial loads
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/3842—Method of assembly, production or treatment; Mounting thereof

Definitions

  • This invention relates to a resilient bush and in particular, although not exclusively, to a resilient bush suitable for use in a vehicle suspension and which contains hydraulic fluid to provide a damping action.
  • the invention relates also to a vehicle subframe and suspension assembly adapted to be secured substantially directly to the vehicle body and wherein the suspension assembly comprises a resilient bush of the invention, and to a vehicle comprising said assembly secured substantially directly to the vehicle body.
  • a problem arising in the use of a hydraulic bush of the aforedescribed type is that the reciprocating flow of fluid generates hydraulic noise. Special measures are needed to prevent that noise being apparent to vehicle occupants.
  • the transmission of hydraulic noise to vehicle occupants can be suppressed by provision of a resilient mounting between a vehicle subframe and suspension assembly, but that is not possible if the subframe needs to be secured directly to the vehicle body for the purpose of achieving a required level of rigidity.
  • the present invention seeks to provide an improved resilient bush, for example of the hydraulic type, and which enables the aforedescribed difficulty to be mitigated or overcome.
  • a resilient bush comprises an inner rigid member, an outer rigid member which extends around and is spaced from the inner rigid member to define an annular space therebetween, resilient elastomeric material which extends between said inner and outer rigid members at positions axially spaced by said annular space and with said elastomeric material being in fluid tight contact relative to said rigid members whereby said annular space may contain hydraulic fluid, a pair of axially spaced rigid support members which each extend radially in said annular space from one of the inner and outer rigid members towards but spaced from the other of said inner and outer rigid members, and a defor able boundary member which is supported by said axially spaced rigid support members and extends radially into contact with said other of said inner and outer rigid members.
  • the deformable boundary member may extend radially into the axial space between the pair of rigid support members thereby to be secured axially relative to said support members.
  • the deformable boundary member may be in fluid tight contact relative to said other of said inner and outer rigid members and/or with said pair of axially spaced rigid support members.
  • One or more of the pair of axially spaced support members and the boundary member may be adapted to define or cooperate with another member to define a fluid flow passage which communicates between two fluid chambers that lie axially spaced in said annular space at respective sides of the pair of support members.
  • Said another member may be defined by elastomeric material which may be bonded to the support members, and may be integral with a thin layer of elastomeric material which extends over the support members from the elastomeric material which extends between the inner and outer rigid members at said positions which are axially spaced by the fluid chambers.
  • Said another member may define an open sided channel the open side of which is covered by the boundary member.
  • the fluid flow passage typically may extend circumferentially or helically through at least 180° , more preferably 330° .
  • the axial spacing of confronting surfaces of the rigid support members preferably is less than 70%, more preferably less than 50%, of the radial extent of said members as measured from said one of said inner and outer rigid members. In a preferred embodiment said axial spacing is approximately one third of said radial dimension.
  • Each of the axially spaced support members may be circumferentially continuous or one or each may comprise a series of circumferentially spaced formations.
  • the support members may be shaped from a single piece of metal stamped to form two axially spaced series of petal-like formations. A space between a successive pair of formations in each series may provide a fluid passage interconnection between a fluid chamber and a fluid flow passage provided between the support members for fluid flow between two fluid chambers.
  • Said single piece of metal additionally may comprise an integral substantially cylindrical portion which comprises at least a part of the inner rigid member. That cylindrical portion may have an inwardly directed end flange adapted to locate against an end or shoulder of a rigid component over which the cylindrical portion may be fitted.
  • the axially spaced support members may be comprised by two rigid members. Axially spaced radially extending portions of those members may be secured together by a spacer which may, for example, be welded to one or each of the rigid support members and which may be integral with one of the rigid support members.
  • the fluid chambers may contain hydraulic fluid and the boundary member may serve to provide a substantially fluid-tight seal between the pair of support members and said other of the inner and outer rigid members whereby relative axial movement of the inner and outer rigid members causes hydraulic fluid to flow through a fluid passage which interconnects the fluid chambers.
  • Figure 1 is a longitudinal cross-section of a resilient bush of a first embodiment of the invention
  • Figure 2 is a perspective view of a part of the bush of Figure 1
  • Figure 3 is a longitudinal cross-section of a resilient bush of a second embodiment of the invention
  • Figure 4 is a perspective view of parts of the bush of Figure 3 which correspond with the part shown in Figure 2.
  • the bushes of Figures 1 and 3 are substantially circular in cross-section as viewed in a plane perpendicular to the axis X-X, the major, longitudinal axis of the bush.
  • a resilient hydraulic type bush 9 is fitted to a tubular steel component 10 of a vehicle suspension.
  • the bush 9 co ⁇ prises an inner rigid member 11 of pressed steel and described in more detail below.
  • Member 11 is surrounded by an outer rigid member 20 also of pressed steel.
  • a one-piece rubber moulding 8 occupies part of an annular space between the rigid members.
  • the moulding 8 is bonded to the inner rigid member 11 and co ⁇ prises two annular portions 13,15 axially spaced apart in part to define therebetween a pair of fluid chambers 17,18.
  • Portion 13 is bonded to a metal end pressing 12 around which the outer rigid member 20 extends with a thin layer of rubber lying between pressing 12 and member 20 to provide a fluid tight seal.
  • Portion 15 is bonded to a metal pressing 14 around an end region of which the outer rigid member 20 also extends, with a thin layer of the rubber therebetween to provide a fluid-tight seal.
  • the pressing 11 co ⁇ prises a pair of axially spaced rigid support members 11a,lib, each of which is circumferentially discontinuous and comprised by a series of circumferentially spaced petal portions 21,22 as more clearly seen in Figure 2.
  • Portions 21,22 are integral with a cylindrical body section 23 and an inwardly directed end flange 24.
  • the bore of body section 23 fits closely over the tubular suspension component 10, with the flange 24 abutting the end of tubular component 10.
  • the axial space between the members 11a,lib contains a section 26 of the rubber moulded to define an open sided fluid flow channel 16 which extends generally circumferentially through 340° . Ends of the channel 16 communicate with the chambers 17,18 via openings between successive pairs of petals.
  • boundary member 19 that acts as a fluid seal to extend between the support members 11a,lib and the outer rigid member 20.
  • the radially outer edge of boundary member 19 is held captive in an annular recess 25 in the outer rigid member. Seal 19 cooperates with the support _._.. modality
  • the fluid flow passage 16 is isolated from direct contact with the inner and outer rigid members. Selection of a suitably non-rigid material for the boundary seal 19 allows any transmission of hydraulic noise to the outer rigid member 20 to be contained within acceptable levels.
  • Figures 3 and 4 show a modification of the embodiment of Figures 1 and 2.
  • the inner rigid member of pressed steel co ⁇ prises a main section 30 having a tubular body portion 31, an inwardly directed end location flange 33, and an outwardly extending flange 32 which defines one of the pair of support members.
  • An auxiliary section 35 provides another outwardly extending flange 36 to serve as the outer support member of the pair and an integral tubular spacer section 37.
  • Section 37 has a length equal to the desired axial spacing of the support members.
  • the free end of the section 37 may be spot welded to the radially inner region of the flange 32 for axial location.
  • the tubular suspension co ⁇ ponent 10 may be stepped to provide a shoulder against which the flanged end of the auxiliary section 35 may be axially located.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

Un moyeu résilient (9) comprend un élément interne rigide (11), un élément externe rigide (20) qui s'étend autour et à une certaine distance de l'élément rigide interne pour définir un espace annulaire entre ces derniers, de la matière élastomère résiliente (8) étant située entre lesdits éléments rigides interne et externe à des endroits (13, 15) qui sont axialement espacés de l'espace annulaire, cette matière élastomère se trouvant en contact intime par le fluide avec les éléments rigides (10, 20), ledit espace annulaire pouvant contenir du liquide hydraulique, une paire d'éléments (11a, 11b) de support rigides axialement espacés qui s'étendent chacun radialement dans ledit espace annulaire à partir d'un des éléments rigides (10, 20) interne et externe en direction de l'autre élément rigide mais cependant à une certaine distance de ce dernier et un élément (19) de bord déformable qui est supporté par lesdits éléments de support rigides et espacés axialement et qui s'étend radialement et touche l'autre élément rigide (20, 10).
PCT/GB2000/004676 1999-12-08 2000-12-07 Moyeu resilient Ceased WO2001042680A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21896/01A AU2189601A (en) 1999-12-08 2000-12-07 Resilient bush

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9928995.1 1999-12-08
GBGB9928995.1A GB9928995D0 (en) 1999-12-08 1999-12-08 Resilient bush

Publications (1)

Publication Number Publication Date
WO2001042680A1 true WO2001042680A1 (fr) 2001-06-14

Family

ID=10865918

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/004676 Ceased WO2001042680A1 (fr) 1999-12-08 2000-12-07 Moyeu resilient

Country Status (3)

Country Link
AU (1) AU2189601A (fr)
GB (1) GB9928995D0 (fr)
WO (1) WO2001042680A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2839763A1 (fr) * 2002-05-16 2003-11-21 Freudenberg Carl Kg Palier en caoutchouc
FR2840042A1 (fr) * 2002-05-24 2003-11-28 Freudenberg Carl Kg Support en caoutchouc a amortissement hydraulique
DE102016206461A1 (de) * 2016-04-18 2017-10-19 Bayerische Motoren Werke Aktiengesellschaft Radaufhängung eines Fahrzeuges mit zumindest einem Lenker
US20190128365A1 (en) * 2017-10-30 2019-05-02 Sumitomo Riko Company Limited Fluid-filled tubular vibration-damping device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145131A (ja) * 1984-08-08 1986-03-05 Kurashiki Kako Kk 弾性支持装置
EP0386735A1 (fr) * 1989-03-09 1990-09-12 Tokai Rubber Industries, Ltd. Support supérieur pour amortisseur de chocs dans un système de suspension
EP0490724A1 (fr) * 1990-12-13 1992-06-17 Caoutchouc Manufacture Et Plastiques Attache hydroélastique de suspension et biélette de liaison élastique liée à cette attache
EP0528253A1 (fr) * 1991-08-20 1993-02-24 Lemfoerder Metallwaren Ag. Palier de support à amortissement hydraulique pour parties de châssis de voiture
US5195728A (en) * 1990-03-31 1993-03-23 Btr Plc Elastomeric mounting with fluid damping
JPH0942367A (ja) * 1995-07-28 1997-02-10 Bridgestone Corp 防振装置
JPH11182613A (ja) * 1997-12-16 1999-07-06 Tokai Rubber Ind Ltd 液体封入式防振装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145131A (ja) * 1984-08-08 1986-03-05 Kurashiki Kako Kk 弾性支持装置
EP0386735A1 (fr) * 1989-03-09 1990-09-12 Tokai Rubber Industries, Ltd. Support supérieur pour amortisseur de chocs dans un système de suspension
US5195728A (en) * 1990-03-31 1993-03-23 Btr Plc Elastomeric mounting with fluid damping
EP0490724A1 (fr) * 1990-12-13 1992-06-17 Caoutchouc Manufacture Et Plastiques Attache hydroélastique de suspension et biélette de liaison élastique liée à cette attache
EP0528253A1 (fr) * 1991-08-20 1993-02-24 Lemfoerder Metallwaren Ag. Palier de support à amortissement hydraulique pour parties de châssis de voiture
JPH0942367A (ja) * 1995-07-28 1997-02-10 Bridgestone Corp 防振装置
JPH11182613A (ja) * 1997-12-16 1999-07-06 Tokai Rubber Ind Ltd 液体封入式防振装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 204 (M - 499) 17 July 1986 (1986-07-17) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 06 30 June 1997 (1997-06-30) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2839763A1 (fr) * 2002-05-16 2003-11-21 Freudenberg Carl Kg Palier en caoutchouc
FR2840042A1 (fr) * 2002-05-24 2003-11-28 Freudenberg Carl Kg Support en caoutchouc a amortissement hydraulique
DE10223303A1 (de) * 2002-05-24 2003-12-18 Freudenberg Carl Kg Hydraulisch dämpfendes Gummilager
KR100612540B1 (ko) * 2002-05-24 2006-08-11 칼 프로이덴베르크 카게 유압 댐핑 고무 베어링
DE102016206461A1 (de) * 2016-04-18 2017-10-19 Bayerische Motoren Werke Aktiengesellschaft Radaufhängung eines Fahrzeuges mit zumindest einem Lenker
US20190128365A1 (en) * 2017-10-30 2019-05-02 Sumitomo Riko Company Limited Fluid-filled tubular vibration-damping device
US11022196B2 (en) * 2017-10-30 2021-06-01 Sumitomo Riko Company Limited Fluid-filled tubular vibration-damping device

Also Published As

Publication number Publication date
AU2189601A (en) 2001-06-18
GB9928995D0 (en) 2000-02-02

Similar Documents

Publication Publication Date Title
EP0386735B1 (fr) Support supérieur pour amortisseur de chocs dans un système de suspension
US4756514A (en) Fluid-filled resilient bushing having excellent axial vibration damping characteristic
US7922156B2 (en) Hydraulically damped body mount with bolt-through construction
US4702346A (en) Vibration insulator
JP4046812B2 (ja) 液圧的に制振するゴム軸受
US8177201B2 (en) Very high damping mount with bolt-through construction
US6168144B1 (en) Hydraulically damping elastomer bearing
US7014178B2 (en) Hydraulically damping bush bearing
US6612554B1 (en) Hydraulic antivibration device
US20090166939A1 (en) Very high damping body mount, subframe mount or engine mount with bolt-through construction
US20190309819A1 (en) Fluid-filled tubular vibration-damping device
CA2155064A1 (fr) Bague a amortissement fluidique
JP2004505843A (ja) 流体減衰軸受
JP2004521297A (ja) 半径方向で緩衝するブシュ形ゴム軸受け
EP0342680A2 (fr) Dispositif de support à amortissement hydraulique
US10752293B2 (en) Body mount
GB2073367A (en) Seal for shock-absorber
KR870003414Y1 (ko) 유압 완충기
WO2001042680A1 (fr) Moyeu resilient
EP0697543A2 (fr) Manchon à amortissement hydraulique avec lumière en métal encapsulée
JP2909046B2 (ja) 液圧緩衝式筒形ラバースプリング
GB2311831A (en) Hydraulically damped rubber mounting
US7422199B2 (en) Self-pumping hydropneumatic suspension strut unit
JPH1030675A5 (fr)
EP0385416A1 (fr) Support supérieur pour amortisseur de chocs dans un système de suspension

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP