GB2062804A - Improvements in or relating to resilient mountings - Google Patents

Improvements in or relating to resilient mountings Download PDF

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Publication number
GB2062804A
GB2062804A GB7939017A GB7939017A GB2062804A GB 2062804 A GB2062804 A GB 2062804A GB 7939017 A GB7939017 A GB 7939017A GB 7939017 A GB7939017 A GB 7939017A GB 2062804 A GB2062804 A GB 2062804A
Authority
GB
United Kingdom
Prior art keywords
bush
skirt
mounting according
mounting
body portion
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.)
Granted
Application number
GB7939017A
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GB2062804B (en
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.)
Dunlop Ltd
Original Assignee
Dunlop 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 Dunlop Ltd filed Critical Dunlop Ltd
Priority to GB7939017A priority Critical patent/GB2062804B/en
Publication of GB2062804A publication Critical patent/GB2062804A/en
Application granted granted Critical
Publication of GB2062804B publication Critical patent/GB2062804B/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/0604—Cabs insulated against vibrations or noise, e.g. with elastic suspension
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Springs (AREA)

Abstract

A resilient mounting for connecting two components, for example a cab structure to a vehicle main frame, comprises an elastomeric tubular bush (3) adapted to be received in an opening in one of the components and a through bore (16) adapted to receive a member for mounting the bush (3) on the other component. The bush has a resilient stop (7) comprising a circumferentially extending skirt (9) which in the free state as moulded is outwardly flared to project axially and radially beyond the body of the bush and a retaining ring (4) to precompress the skirt (9) to permit insertion of the skirt (9) through the opening (13) during assembly, the ring (4) being removable thereafter to release the precompression. <IMAGE>

Description

SPECIFICATION Improvements in or relating to resilient mountings This invention concerns improvements in or relating to resilient mountings.
According to the present invention a resilient mounting for connecting two components comprises a tubular bush of elastomeric material having a main body portion adapted to be received in an opening in one of said components, a through bore adapted to receive a member for mounting the bush on the other of said components, a resilient stop for limiting relative movement between the components in use comprising a circumferentially extending skirt moulded integrally with the bush at one end thereof to project axially and radially beyond the main body portion of the bush and a retaining ring to precompress the skirt radially inwards so as to permit passage of the skirt through and location of the main body portion of the bush in the opening in said one component, the retaining ring being removable thereafter to release the precompression of the skirt.
Preferably the skirt is outwardly flared in a direction leading towards the free edge thereof i.e.
the skirt is of generally conical profile. Preferably the skirt is connected to the main body portion of the bush by a web portion of reduced thickness as compared with the thickness of the skirt.
Preferably the bush is profiled to define in use a second resilient stop at the other end thereof. The second limit stop may comprise a circumferentially extending rib the free edge of which projects axially beyond the adjacent end of the main body portion of the bush.
The bush may act between and be in direct surface contact with the two components.
Alternatively the bush may act between and be bonded to confronting surfaces of rigid inner and outer members, the inner member being adapted to receive the mounting member of said other component and the outer member being adapted for location in the opening in said one component.
Preferably the rigid outer member where provided has an abutment to limit the insertion of the main body portion into the opening in said one component. Conveniently the abutment comprises a radially outwardly directed collar formed integrally with the outer member at one end thereof. Preferably the elastomeric material of the bush is bonded to the collar on that side which is remote from the skirt.
Preferably the axial length of the inner member exceeds that of the outer member and the latter is conveniently located intermediate the ends of the inner member.
The retaining ring may be made of any suitable material, for example plastics material, metal, cardboard or fabric, which can retain the skirt in the precompressed condition without substantially deforming from the shape necessary to permit passage of the ring through the opening in said one component.
The invention will now be described in more detail, by way of example only, with reference to the accompanying drawings wherein: Figure 1 is a longitudinal section of the mounting according to the present invention; Figure 2 is a longitudinal section of the mounting shown in Figure 1 without the retaining ring, and Figure 3 shows the mounting of Figure 1 installed.
The mounting shown in Figure 1 of the accompanying drawings comprises rigid inner and outer members 1 and 2 inter-connected by a resilient rubber bush 3, and a retaining ring 4 of plastics material.
The inner and outer members 1 and 2 are both cylindrical with the axial length of the inner member 1 exceeding that of the outer member 2, which is positioned intermediate the ends of the inner member. A radially outwardly directed collar 5 is formed integrally with the outer member at one end thereof and serves to locate the outer member during assembly as will be described in more detail later.
The rubber bush 3 is moulded between and bonds to the confronting surfaces of the inner and outer members 1 and 2. The rubber bush 3 also has a radially outwardly directed annular projection 3a bonded to the axially outer surface 5a of the collar.
Moulded integrally with the bush 3, one at each end, are resilient stops 6 and 7 which in use provide bump and rebound stops respectively.
The stop 6 comprises a circumferentially extending rib 8 the free edge of which extends axially beyond the adjacent end 1 a of the inner member.
The stop 7 comprises a circumferentially extending skirt 9 connected to the main body of the bush 3 by a web portion 10 of reduced thickness as compared with the thickness of the skirt 9.
As shown in Figure 2 the skirt 9 as moulded is outwardly flared in a direction leading towards the free edge thereof to project axially and radially beyond the cylindrical body portion of the outer member 2. The free edge of the skirt also projects axially beyond the adjacent ends of the inner member 1.
The retaining ring 4 is cylindrical having a maximum diameter slightly less than that of the cylindrical body portion of the outer member 2. As shown in Figure 2 the ring 4 fits over the skirt 9 and precompresses the skirt 9 radially inwards.
The ring 4 forms an extension of the cylindrical body portion of the outer member 2 to facilitate fitting of the mounting as will now be described in more detail with reference to Figure 3.
In use the mounting is used to connect two components for example to connect a cab structure to a vehicle main frame. One component indicated by the reference numeral 11 has an aperture 13 in which the cylindrical body portion of the outer member 2 is received. The other component indicated by the reference numeral 1 2 has a flange 14 carrying a bolt 1 5 which extends through the bore 1 6 of the inner member and is retained in position by a retaining flange 1 7 secured to the free end thereof by a nut 1 8.
To assemble the mounting the retaining ring 4 and cylindrical body portion of the outer member are inserted into and through the aperture 13 until the collar 5 abuts the component 1 The retaining ring 4 is then removed releasing the precompression of the skirt 9. The bolt 1 5 is then inserted through the flange 14 and the bore 1 6 of the inner member and the retaining flange 1 7 fitted and secured by tightening the nut 1 8. The nut 18 is tightened until the ends of the inner member 1 abut the adjacent fianges 1 4 and 1 7 as shown in Figure 3. In this position the rib 8 is axially compressed by the flange 14 and the skirt 9 is compressed between the flange 17 and the component 11.The rib 8 and skirt 9 which form the resilient stops 6, 7 control relative axial movement of the inner member 1 relative to the outer member 2 caused by relative movement between the components 11, 12.
The bump and rebound characteristics of the mounting can therefore be controlled by appropriate selection of the dimensions of the rib 8 and skirt 9 so as to vary the amount of precompression of these components when the mounting is assembled.
It will be apparent from the foregoing that the free edge of the skirt 9 as moulded has a diameter greater than that of the aperture 1 3 in order to ensure that the skirt is compressed between the component 11 and retaining flange 1 7 on assembly thus preventing direct metal to metal contact on excessive axial movement between the components 11, 12.
It will be understood that without the retaining ring 4 assembly of the mounting would be extremely difficult as a result of first having to compress the skirt 9 to enable insertion of the skirt into the aperture 1 3 and secondly having to overcome the frictional resistance that would be encountered on passage of the skirt through the aperture 13, the frictional resistance being relatively greater as a result of the flared construction of the skirt. The present invention readily overcomes these problems by the provision of the retaining ring 4 which precompresses the skirt 9 so that the maximum diameter of the parts of the mounting to be inserted into and through the aperture 1 3 during assembly is less than that of the aperture.
The invention is not restricted to the above described embodiment which may be modified in a number of ways, for example the mounting may comprise the above described bush 3 and retaining ring 4 without the rigid inner and outer members 1 and 2. In this construction the bolt 1 6 would be received in a through bore of the bush and the main body portion of the bush would be received in the aperture 13 so that the elastomeric material of the bush would be in direct contact with but not bonded to the bolt 1 6 or component 11 with the annular projection 3a or a similar peripheral abutment being relied on to limit the insertion of the main body portion into the aperture 13.
The rib 8 may be omitted and the bush profiled to ensure a portion of elastomeric material is present to prevent direct metal to metal contact between the components 11, 12 as a result of relative axial movement therebetween, for example the annular projection 3a may be relied on to prevent such direct contact.

Claims (17)

1. A resilient mounting for connecting two components comprising a tubular bush of elastomeric material having a main body portion adapted to be received in an opening in one of said components, a through bore adapted to receive a member for mounting the bush on the other of said components, a resilient stop for limiting relative movement between the components in use comprising a circumferentially extending skirt moulded integrally with the bush at one end thereof to project axially and radially beyond the main body portion of the bush and a retaining ring to precompress the skirt radially inwards so as to permit passaqe of the skirt through and location of the main body portion of the bush in the opening in said one component, the retaining ring being removable thereafter to release the precompression of the skirt.
2. A mounting according to claim 1 wherein the skirt is outwardly flared in a direction leading towards the free edge thereof.
3. A mounting according to claim 1 or claim 2 wherein the skirt is connected to the main body portion of the bush by a web portion of reduced thickness as compared with the thickness of the skirt.
4. A mounting according to any one of the preceding claims including a second resilient stop at the other end of the bush.
5. A mounting according to claim 4 wherein the second resilient stop comprises a circumferentially extending rib the free edge of which projects axially beyond the adjacent end of the main body portion.
6. A mounting according to claim 4 or claim 5 wherein the second resilient stop is moulded integrally with the bush.
7. A mounting according to any one of the preceding claims including means to limit insertion of the main body portion into the opening in said one component.
8. A mounting according to claim 7 wherein the limit means comprises a circumferentially and radially outwardly extending abutment.
9. A mounting according to claim 8 wherein the abutment comprises a projection moulded integrally with the bush.
10. A mounting according to any one of the preceding claims wherein the bush acts between and is bonded to confronting surfaces of rigid inner and outer members, the inner member being adapted to receive the mounting member of said other component and the outer member being adapted for location in the opening in said one component.
1 A mounting according to claim 10 in combination with claim 8 wherein the abutment comprises a collar formed integrally with the outer member.
12. A mounting according to claim 11 wherein the elastomeric material of the bush is bonded to the collar on that side which is remote from the skirt.
1 3. A mounting according to any one of claims 10, 11 or 1 2 wherein the axial length of the inner member exceeds that of the outer member.
14. A mounting according to claim 13 wherein the outer member is positioned intermediate the ends of the inner member.
15. A mounting according to any one of the preceding claims wherein the main body portion of the bush and the retaining ring are cylindrical.
16. A mounting according to claim 1 5 wherein the maximum diameter of the retaining ring is equal to or less than that of the main body portion of the bush.
17. A mounting substantially as hereinbefore described with reference to the accompanying drawings.
1 8. A vehicle incorporating a mounting according to any one of the preceding claims.
GB7939017A 1979-11-10 1979-11-10 Resilient mountings Expired GB2062804B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7939017A GB2062804B (en) 1979-11-10 1979-11-10 Resilient mountings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7939017A GB2062804B (en) 1979-11-10 1979-11-10 Resilient mountings

Publications (2)

Publication Number Publication Date
GB2062804A true GB2062804A (en) 1981-05-28
GB2062804B GB2062804B (en) 1983-06-29

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ID=10509121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7939017A Expired GB2062804B (en) 1979-11-10 1979-11-10 Resilient mountings

Country Status (1)

Country Link
GB (1) GB2062804B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4240188A1 (en) * 1992-04-08 1993-10-14 Metzeler Gimetall Ag Elastic car bush with inner and outer tube - has axial stop beads spatially separated from support body to form soft, elastomer joint between body and stops
WO1998012452A1 (en) * 1996-09-18 1998-03-26 Lord Corporation Vibration isolation insert for aircraft floor panels and the like
WO1999051482A1 (en) * 1998-04-06 1999-10-14 Lord Corporation Tube-shaped mount with restricted bulge area
US6017073A (en) * 1997-11-04 2000-01-25 Volvo Wheel Loaders Ab Fastening arrangement
EP1026420A1 (en) * 1999-02-05 2000-08-09 Hutchinson Damping support and process for manufacturing the same
DE20218301U1 (en) 2002-11-26 2003-02-13 Schwarz Verbindungssysteme GmbH, 75382 Althengstett Vibration damper ring insert arrangement, also in connection arrangements for components
WO2008116686A1 (en) * 2007-03-27 2008-10-02 Contitech Vibration Control Gmbh Elastic bearing
DE102014222817A1 (en) * 2014-11-07 2016-05-12 Volkswagen Aktiengesellschaft Decoupling element and motor vehicle with at least one such decoupling element

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4240188A1 (en) * 1992-04-08 1993-10-14 Metzeler Gimetall Ag Elastic car bush with inner and outer tube - has axial stop beads spatially separated from support body to form soft, elastomer joint between body and stops
WO1998012452A1 (en) * 1996-09-18 1998-03-26 Lord Corporation Vibration isolation insert for aircraft floor panels and the like
US5876024A (en) * 1996-09-18 1999-03-02 Lord Corporation Vibration isolation insert for aircraft floor panels and the like
US5876023A (en) * 1996-09-18 1999-03-02 Lord Corporation Vibration isolation insert for aircraft floor planels and the like
US6017073A (en) * 1997-11-04 2000-01-25 Volvo Wheel Loaders Ab Fastening arrangement
WO1999051482A1 (en) * 1998-04-06 1999-10-14 Lord Corporation Tube-shaped mount with restricted bulge area
EP1026420A1 (en) * 1999-02-05 2000-08-09 Hutchinson Damping support and process for manufacturing the same
FR2789464A1 (en) * 1999-02-05 2000-08-11 Hutchinson ANTIVIBRATORY SUPPORT AND MANUFACTURING METHOD THEREOF
DE20218301U1 (en) 2002-11-26 2003-02-13 Schwarz Verbindungssysteme GmbH, 75382 Althengstett Vibration damper ring insert arrangement, also in connection arrangements for components
US7179039B2 (en) 2002-11-26 2007-02-20 Schwarz Verbindungs-Systeme Gmbh Vibration-damping ring insert arrangement and component connection arrangement incorporating the same
WO2008116686A1 (en) * 2007-03-27 2008-10-02 Contitech Vibration Control Gmbh Elastic bearing
DE102014222817A1 (en) * 2014-11-07 2016-05-12 Volkswagen Aktiengesellschaft Decoupling element and motor vehicle with at least one such decoupling element
DE102014222817B4 (en) 2014-11-07 2024-04-25 Volkswagen Aktiengesellschaft Decoupling element and motor vehicle with at least one such decoupling element

Also Published As

Publication number Publication date
GB2062804B (en) 1983-06-29

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Legal Events

Date Code Title Description
727 Application made for amendment of specification (sect. 27/1977)
727A Application for amendment of specification now open to opposition (sect. 27/1977)
727B Case decided by the comptroller ** specification amended (sect. 27/1977)
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee