WO1986002886A1 - Montages pour ressorts - Google Patents

Montages pour ressorts Download PDF

Info

Publication number
WO1986002886A1
WO1986002886A1 PCT/GB1985/000491 GB8500491W WO8602886A1 WO 1986002886 A1 WO1986002886 A1 WO 1986002886A1 GB 8500491 W GB8500491 W GB 8500491W WO 8602886 A1 WO8602886 A1 WO 8602886A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
mounting
assembly according
bearing surface
assembly
Prior art date
Application number
PCT/GB1985/000491
Other languages
English (en)
Inventor
Adrian Tucker-Peake
David Cowburn
Original Assignee
Gkn Technology Limited
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
Priority claimed from GB848428170A external-priority patent/GB8428170D0/en
Priority claimed from GB858521264A external-priority patent/GB8521264D0/en
Application filed by Gkn Technology Limited filed Critical Gkn Technology Limited
Priority to GB08710515A priority Critical patent/GB2191262A/en
Publication of WO1986002886A1 publication Critical patent/WO1986002886A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/34—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs
    • B60G11/38—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also rubber springs
    • B60G11/42—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also rubber springs the rubber springs being attached to sprung part of the vehicle
    • 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
    • F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
    • F16F1/368—Leaf springs
    • F16F1/3683—Attachments or mountings therefor
    • F16F1/3686—End mountings

Definitions

  • This invention relates to a mounting assembly, by which a spring is mounted in apparatus or equipment with which it is to be used. More particularly, the invention relates to a mounting assembly for a spring made of composite, fibre-rein orced plastics, material, in the form of a leaf thereof, and the invention has been developed in relation to motor vehicle suspensions.
  • an object is to provide a mounting by which a composite spring is able to undergo limited pivotal movement relative to the article or structure to which it is mounted, about an axis extending transversly to the normal or principal direction of bending of the spring in use.
  • a mounting is commonly required when the spring is used in a motor vehicle suspension, either in the cantilever mode or in an arrangement wherein the spring extends transversely of the vehicle, e.g. as disclosed in International Patent Application Publication WO-83/01758.
  • the mountings disclosed for the spring in such application are relatively complex, and do not fully meet the requirement for a compact, economical and effective spring mounting.
  • an assembly comprising a spring leaf of composite, fibre-reinforced plastics, material; affording or at least partially transversely embraced by an element providing a bearing surface extending transversely of the spring, and a mounting element or structure engaging said bearing surface thereby to constrain the spring.
  • the mounting element or structure constrains the spring to a desired relationship (or movement) relative thereto, and the mounting element or structure may then be secured to, for example, a motor vehicle with which the spring is to be used. It would be possible for the mounting element or structure to form part of a motor vehicle or other equipment with which the spring is used.
  • Said element which at least partially transversely embraces the spring, is preferably of a plastics material, and conveniently may be applied to the spring by an injection moulding process.
  • An injection moulding process e.g. a reaction injection moulding (RIM) process, used with a plastics material such as a suitable grade of nylon, enables an element to be moulded onto the spring with closely controlled dimensions, accurate positioning on the spring, and adequate structural strength.
  • RIM reaction injection moulding
  • the spring itself to incorporate in its structure an element or portion of increased thickness affording the bearing surface.
  • such elements are difficult to incorporate in a composite spring, and hence it will generally be more convenient to provide an element of plastics material.
  • such a moulded element completely embraces the spring.
  • the spring itself need not then be directly contacted by any part of the mounting element or structure.
  • Said element may afford part cylindrical bearing surface portions, extending transversely of the spring so that, when engaged by an appropriate mounting structure, the spring is mounted for the limited pivotal movement as above described.
  • said element may afford opposed part-frusto-conical surface portions.
  • an element or elements of elastomeric material is or are interposed between said mounting element or structure and said bearing surface.
  • an elastomeric material provides a certain amount of flexibility in the mounting, and prevents, or attenuates, transmission of noise and vibration from the spring to the structure in which it is used.
  • the elastomeric element may include apertures or other formations to increase its flexibility in a desired manner.
  • Figure 2 is a plan view of part of the assembly of Figure 1.
  • Figure 3 is a transverse section through the assembly of Figures 1 and 2.
  • Figure 4 is a transverse section through a further embodiment of assembly according to the invention.
  • Figure 5 is a longitudinal section through the embodiment of Figure - ⁇ .
  • the assembly shown in Figures 1 to 3 includes a leaf spring 10 made of composite, fibre-reinforced plastics, material and is the mounting adjacent one end of such a spring in a suspension of the kind described in International Published Patent Application ⁇ 0-83/01758.
  • the spring comprises a central portion 11 which is of constant cross-sectional shape and two end portions 12 each of decreasing width and increasing thickness towards the free ends of the spring, the spring being supported relative to a motor vehicle by mountings as shown at each end of its central portion 11.
  • the spring mounting assembly comprises an element 13 of a plastics material such as a suitable grade of nylon, embracing the spring transversely and applied thereto by a moulding process such as injection moulding. Thereby the element is effectively secured to the spring.
  • the element 13 has portions with part-cylindrical bearing surfaces extending transversely above and beneath the spring, joined by portions at the side of the spring.
  • a mounting structure having upper and lower parts 14, 15 of a shape which substantially conforms to the part-cylindrical surfaces of the element 13 supports the latter, with the interposition of elements 16, 17 of elastomeric material.
  • the parts 14, 15 may be secured together by means not shown, and the assembly then secured as a unit to the motor vehicle. They may have parts which engage the parts of the element 13 which extend between the part-cylindrical portions thereof, so
  • the spring is also constrained in directions along the axis of the element 13- Elastomeric material may also be interposed here, between the element 13 and the mounting structure.
  • the elastomeric material may be bonded to the element 13 and/or the parts 14, 15-
  • the parts 14, 15 of the mounting structure may, instead of being separate components, themselves form parts of the structure of the vehicle with which the spring is to be used.
  • the mounting assembly 20 described provides for limited pivotal movement of the spring about an axis extending transversely of the spring, i.e. longitudinally of the element 13 » Such pivoting is achieved by virtue of the shape of- element 13 » and the interposition of the elastomeric elements 16, 25 17 between it and the parts of the mounting structure.
  • the element 13 may be of a shape other than the cylindrical one illustrated, and may, for example, include frusto-conical portions, e.g. so that the element is of greatest thickness at the 30 centre of the spring, tapering transversely to opposite sides of the spring. If the pivoting motion of the spring is not required, the element 13 could, for example, be rectangular in cross-section.
  • a further feature which may be provided is that the element 13, above and/or beneath the spring, may be recessed as indicated at 19 so that the spring is not tightly constrained across its full width. This prevents or reduces stresses which would arise in the spring if its anticlastic bending were prevented.
  • the element 13 will, because of the shape of the spring, not be able to move longitudinally of the spring. If however such an element is to be provided at a part of the spring where the cross-sectional shape of the spring is not changing, it may be necessary to form the spring with recess formations in one or more of its surfaces, with which the element 13 will "key" to hold it stationary on the spring.
  • a leaf spring 20 which is made of composite, fibre reinforced plastics, material.
  • the spring may, for example, form part of the suspension system of a motor vehicle, mounted in the vehicle in the cantilever mode. At one end, the spring would be connected to a wheel, axle or other suspension component. At a position between its ends, the spring would be connected to the vehicle by the assembly to be described hereafter, and at its other end the spring would be supported relative to the vehicle in such a way as to provide a reaction force.
  • the spring mounting assembly comprises portion 21 which is of increased thickness, comprising two part- frusto-conical portions 22, 23 tapering in opposite directions towards respective sides of the spring.
  • the portion 21 of the spring is substantially completely enclosed within a mounting structure which is two parts 26, 27 assembled from opposite sides of the spring. Flanges 28, 29 on the parts 26, 27 respectively abut one another. Appropriate fastenings through or between these flanges hold the parts 26, 27 of the structure together, and enable the structure to be mounted in a vehicle.
  • Elastomeric elements 24, 25 are interposed between the upper and lower surfaces, respectively, of the part 21 of the spring and the structure 26, 27 « These are of a suitable grade of rubber. Further elastomeric elements 30 are interposed between the sides of the spring and the parts of the structure. The dimensions of the assembly are such that these elastomeric elements are ⁇ ider compression when the structure is assembled.
  • the spring is able to undergo limited angular movement about a transverse axis within the structure 26, 27.
  • the spring is also effectively constrained against lateral movement, such that the pads 30 of elastomeric material providing additional lateral constraint on the spring may not be necessary.
  • the compressed state of the elastomeric elements in the assembly means that there is no necessity for them to be bonded to the spring, thereby eliminating a difficulty in manufacture of composite springs.

Landscapes

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

Abstract

Montage pour ressort à lames en matériau composite plastique armé de fibres, comportant par exemple un élément en plastique moulé par injection (13) renfermant le ressort, enveloppé par une structure de montage (14, 15) se conformant aux surfaces portantes de l'élément (13), un matériau élastomère (16, 17) étant interposé. Les surfaces portantes peuvent être partiellement cylindriques de sorte que le ressort est maintenu pour un mouvement de pivotement limité autour d'un axe transversal. Dans une variante, l'élément peut être solidaire du ressort (21), et peut offrir des surfaces portantes tronconiques (22, 23).
PCT/GB1985/000491 1984-11-07 1985-10-28 Montages pour ressorts WO1986002886A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08710515A GB2191262A (en) 1984-11-07 1985-10-28 Mountings for springs

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8428170 1984-11-07
GB848428170A GB8428170D0 (en) 1984-11-07 1984-11-07 Mounting assembly
GB858521264A GB8521264D0 (en) 1985-08-24 1985-08-24 Mountings
GB8521264 1985-08-24

Publications (1)

Publication Number Publication Date
WO1986002886A1 true WO1986002886A1 (fr) 1986-05-22

Family

ID=26288429

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1985/000491 WO1986002886A1 (fr) 1984-11-07 1985-10-28 Montages pour ressorts

Country Status (4)

Country Link
EP (1) EP0230416A1 (fr)
ES (1) ES290185Y (fr)
GB (1) GB2191262A (fr)
WO (1) WO1986002886A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988002828A1 (fr) * 1986-10-08 1988-04-21 Gkn Technology Limited Fixation d'un ressort en accordeon sur un element de suspension
FR2611604A1 (fr) * 1987-02-25 1988-09-09 Peugeot Suspension pour vehicule automobile
FR2630513A1 (fr) * 1988-04-22 1989-10-27 Gkn Technology Ltd Ressort a lame a semelle moulee d'extremite
EP0425880A1 (fr) * 1989-10-27 1991-05-08 BASF Aktiengesellschaft Ressort à lame en matière plastique renforcée de fibres
EP0975889A1 (fr) * 1997-04-17 2000-02-02 The Ohio Mattress Company Licensing And Components Group Modules ressort en materiau composite avec fixations monobloc
EP0994270A3 (fr) * 1998-10-16 2001-04-18 Delphi Technologies, Inc. Suspension de roue de véhicule à ressort à lame transversale et supports pour obtainir un grand rapport de roulis
EP2030813A1 (fr) * 2007-08-29 2009-03-04 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Système de suspension de véhicule
EP2604453A1 (fr) * 2011-12-14 2013-06-19 Magna Steyr Fahrzeugtechnik AG & Co KG Ressort à lame doté d'un corps de liaison élastique relié de manière rigide pour un véhicule automobile
DE102014108516B3 (de) * 2014-06-17 2015-05-21 Benteler Automobiltechnik Gmbh Blattfederanordnung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831674A (en) * 1950-12-27 1958-04-22 Pacific Car & Foundry Co Spring suspension
DE1146380B (de) * 1960-07-23 1963-03-28 Opel Adam Ag Federnde Aufhaengung der gelenkten Vorderraeder von Kraftfahrzeugen
FR2516455A1 (fr) * 1981-11-18 1983-05-20 Bertin & Cie Suspension de vehicule automobile par lame elastique
EP0137096A2 (fr) * 1983-09-13 1985-04-17 Jörn, Frieda Montage élastique des extrémités de ressorts à lame pour véhicules routiers et de chemin de fer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831674A (en) * 1950-12-27 1958-04-22 Pacific Car & Foundry Co Spring suspension
DE1146380B (de) * 1960-07-23 1963-03-28 Opel Adam Ag Federnde Aufhaengung der gelenkten Vorderraeder von Kraftfahrzeugen
FR2516455A1 (fr) * 1981-11-18 1983-05-20 Bertin & Cie Suspension de vehicule automobile par lame elastique
EP0137096A2 (fr) * 1983-09-13 1985-04-17 Jörn, Frieda Montage élastique des extrémités de ressorts à lame pour véhicules routiers et de chemin de fer

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988002828A1 (fr) * 1986-10-08 1988-04-21 Gkn Technology Limited Fixation d'un ressort en accordeon sur un element de suspension
FR2611604A1 (fr) * 1987-02-25 1988-09-09 Peugeot Suspension pour vehicule automobile
FR2630513A1 (fr) * 1988-04-22 1989-10-27 Gkn Technology Ltd Ressort a lame a semelle moulee d'extremite
GB2217809A (en) * 1988-04-22 1989-11-01 Gkn Technology Ltd Leaf spring having slipper end
WO1989010498A1 (fr) * 1988-04-22 1989-11-02 Gkn Technology Limited Ressort a lames pourvu d'une extremite a glissiere
EP0425880A1 (fr) * 1989-10-27 1991-05-08 BASF Aktiengesellschaft Ressort à lame en matière plastique renforcée de fibres
EP0975889A1 (fr) * 1997-04-17 2000-02-02 The Ohio Mattress Company Licensing And Components Group Modules ressort en materiau composite avec fixations monobloc
EP0975889A4 (fr) * 1997-04-17 2003-07-16 Ohio Mattress Co Modules ressort en materiau composite avec fixations monobloc
EP0994270A3 (fr) * 1998-10-16 2001-04-18 Delphi Technologies, Inc. Suspension de roue de véhicule à ressort à lame transversale et supports pour obtainir un grand rapport de roulis
EP2030813A1 (fr) * 2007-08-29 2009-03-04 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Système de suspension de véhicule
WO2009028942A1 (fr) * 2007-08-29 2009-03-05 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Système de suspension de véhicule
EP2604453A1 (fr) * 2011-12-14 2013-06-19 Magna Steyr Fahrzeugtechnik AG & Co KG Ressort à lame doté d'un corps de liaison élastique relié de manière rigide pour un véhicule automobile
CN103158467A (zh) * 2011-12-14 2013-06-19 马格纳斯泰尔汽车技术两合公司 用于机动车的、带有刚性地连接的弹性连接体的板簧
DE102014108516B3 (de) * 2014-06-17 2015-05-21 Benteler Automobiltechnik Gmbh Blattfederanordnung

Also Published As

Publication number Publication date
EP0230416A1 (fr) 1987-08-05
GB8710515D0 (en) 1987-06-03
ES290185U (es) 1986-03-01
ES290185Y (es) 1986-10-16
GB2191262A (en) 1987-12-09

Similar Documents

Publication Publication Date Title
KR910005043B1 (ko) 액슬 클램프
CA1247154A (fr) Bride serrage sur lames de ressort en materiau synthetique
US4895350A (en) Axle mount construction for a fiber reinforced resin leaf spring
CA1270007A (fr) Bride de ressort a lames et sa fixation
EP0278596B1 (fr) Support de lame de ressort avec moyens de fixation
EP0266353B1 (fr) Assemblages de ressort
US4951962A (en) Vibration-proof structure for axle beam of motor vehicle
US4750718A (en) Dual rate leaf spring construction
US4619466A (en) Wheel suspension
EP0956462A1 (fr) Ensemble support de carrosserie
US4598900A (en) FRP leaf spring suspension
WO1986002886A1 (fr) Montages pour ressorts
US4869472A (en) Connection devices for spring suspension leaves of a vehicle and method for installing said devices
JPS60501514A (ja) 複合材料のスプリングに対する部材の固定
US20190308477A1 (en) Leaf spring holder for connecting a leaf spring to an axle and chassis with such a leaf spring holder
EP0248603B1 (fr) Dispositifs de montage pour ressort à lame
GB2233941A (en) A transverse leaf spring suspension for a vehicle wheel
AU570588B2 (en) Assemblies of springs of composite material
GB2160616A (en) Securing components to composite springs
WO1990006454A1 (fr) Ensemble a ressort a lames en materiau composite
US5271611A (en) Arm for suspending a vibrating member
GB2174174A (en) Securing components to leaf springs
JPS6225553Y2 (fr)
JPS641127Y2 (fr)
JPH03172635A (ja) 車両用懸架装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): GB US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1985905417

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1985905417

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1985905417

Country of ref document: EP