GB2350150A - Self-aligning damper mounting for vehicle suspensions - Google Patents

Self-aligning damper mounting for vehicle suspensions Download PDF

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Publication number
GB2350150A
GB2350150A GB9911581A GB9911581A GB2350150A GB 2350150 A GB2350150 A GB 2350150A GB 9911581 A GB9911581 A GB 9911581A GB 9911581 A GB9911581 A GB 9911581A GB 2350150 A GB2350150 A GB 2350150A
Authority
GB
United Kingdom
Prior art keywords
mounting
ball
stem
damper
self aligning
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Withdrawn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
GB9911581A
Other versions
GB9911581D0 (en
Inventor
David Alan Thompson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9911581A priority Critical patent/GB2350150A/en
Publication of GB9911581D0 publication Critical patent/GB9911581D0/en
Publication of GB2350150A publication Critical patent/GB2350150A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/54Arrangements for attachment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/001Arrangements for attachment of dampers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10Mounting of suspension elements
    • B60G2204/12Mounting of springs or dampers
    • B60G2204/128Damper mount on vehicle body or chassis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10Mounting of suspension elements
    • B60G2204/12Mounting of springs or dampers
    • B60G2204/129Damper mount on wheel suspension or knuckle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41Elastic mounts, e.g. bushings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/416Ball or spherical joints

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

A self-aligning mounting for the ends of a damper for a vehicle suspension comprises a ball joint with a ball 13a,b suitably attached to the vehicle and a socket 12,14 on the damper and to accommodate misalignment the hole 31 through the ball receives the stem 11 of the damper with play to allow relative tilting. A rubber pad 16 urges the ball and socket into contact.

Description

2350150 1 SELF ALIGNING DAMPER MOUNTINGS
BACKGROUND
Hydraulic dampers fitted to vehicle suspension systems are often provided with stem ends as a method of securing them to the body or bogie at one end and the suspension arm or moving component at the other. Due to static nt and the dynamic movement of the two mounting points, relative to one another, misalignment occurs which induces bending forces within the damper, resulting in excess wear and tear and premature failure of the unit.
This invention applies to dampers and friction devices which have a stem end mounting at one or both ends, where articulation is required to maintain alignment of the piston rod with the cylinder during random movement of the surfaces to which the unit is attached. The invention may be applied to a new unit installation, and it is also capable of being fitted to existing unit installations where improvements in unit alignment are required to improve reliability.
The invention will enable stem ended units to be installed in alignment in the static condition even though the mounting holes may be mis aligned and/or at an inclination to each other. During the dynamic conditions the mounting surflices move relative to and angularly to each other. The spherical ball moves with the mounting plate whilst the sockets attached to the damper stein, slide over the ball, maintaining the damper m aligninent between the top and the bottom mountings.
2 THE INVENTION The invention of a self aligning mounting is achieved by a ball and socket applied to the stem ends of the unit, see fig. 1. The ball (13) comprises of two hemispherical components (1 3a & 13b) which are located on mounting faces A & B to form the spherical M1, see fig. 4. These hemispherical components have holes (3 1) which may be tapered to allow angular movement of the stems (11 & 2 1). A hemispherical socket (12) is provided at the piston rod end (18), supported on collar (17). Spacertube(19) controls the position of the outer socket (14), preventing the nut (15) from being overtightened on the ball (13a & 13b), leaving the two hemispherical sockets (12 & 14) free to move over the ball (13a & 13b). The ball and sockets are pre loaded by rubber pad (16) which applies a force beneath socket (12) and elirninating clearances. The cylinder or base end of the damper, fig. 5, comprises of similar components to the stem end above with this variation, socket (24) is prevented from clamping socket (24) onto the ball (13a & 13b) by shoulder (29) on base stem (21). Compression of the sockets (22 & 24) is maintained by rubber pad (26).
The hemispherical balls are located in the holes of of the mounting surfaces A and B so as to form a sphere which have tapered holes inside through which the damper stem ends pass. These tapered hole enable the stem ends to pivot on the centre of the ball whilest providing clearance to swing in all directions at the circumference of the balls. In the static condition the mountings will enable the damper to rest in alignment between the centres of the two balls, top and bottom and no movement takes place. When the damper is working in dynamic conditions mounting surfaces A and B are moving relative to one another, this causes the centres of the balls to be displaced resulting in an angular movement of the stem ends. The sockets which are held against the balls by the pressure of the rubber pad move with the stem end. The friction between the ball and its sockets is controlled by the pressure of the rubber pad.
3 BRIEF DESCRIXTION OF THE DRAWINGS The invention will be described in further detail below, reference being made to the following accompanying drawings in which Fig 1 is a view of a unit with the inventions, in which the two mountings A and B are in fine and parallel to each other.
Fig 2 is a view of the unit in which the mounting plates A and B are misaligned by an amount 'x'. This causes the invention to realign the two ends of the unit and maintain the piston rod (18) and cylinder (27) in alignment.
Fig 3 is a view of the unit in which the mounting plates A and B are displaced angularly to each other by an angle a' and P' respectively. This causes the invention to maintain the alignment of the piston rod (18) and cylinder (28).
Fig 4 is a view of a piston rod showing detail of the invention with a perpendicular line from the mounting face A, inclined at an angle a' to the piston rod. The outer socket (14) is positioned by spacer tube (19) and compression on the socket is provided by rubber pad (16).
Fig 5 is a view of the cylinder mounting showing detail of the invention with a perpendicular fine from the mounting face B, inclined at an angle 00 to the cylinder centre line. Shoulder (29) on stem (21) limits the compression on the ball which is provided by rubber pad (26).
4

Claims (6)

  1. I - A self aligning mounting for dampers with stem ends which enables both ends to be maintained concentric to each other.
  2. 2. A self aligning mounting which incorporates a spherical ball and sockets to maintain the allgmnent between mounting centres.
  3. 3. A self aligning damper mounting in whichthe ball and socket are kept pre loaded by a rubber pad element.
  4. 4. A self aligning mounting which will statically and dynamically maintain alignment of piston and cylinder.
  5. 5. A self aligning mounting which will reduce or eliminate bending forces in stem ended dampers.
  6. 6. A mounting which is capable of being fitted to existing stem applications to provide continuous alignment.
GB9911581A 1999-05-19 1999-05-19 Self-aligning damper mounting for vehicle suspensions Withdrawn GB2350150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9911581A GB2350150A (en) 1999-05-19 1999-05-19 Self-aligning damper mounting for vehicle suspensions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9911581A GB2350150A (en) 1999-05-19 1999-05-19 Self-aligning damper mounting for vehicle suspensions

Publications (2)

Publication Number Publication Date
GB9911581D0 GB9911581D0 (en) 1999-07-21
GB2350150A true GB2350150A (en) 2000-11-22

Family

ID=10853699

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9911581A Withdrawn GB2350150A (en) 1999-05-19 1999-05-19 Self-aligning damper mounting for vehicle suspensions

Country Status (1)

Country Link
GB (1) GB2350150A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2423128A (en) * 2005-02-11 2006-08-16 Sabre Rail Services Ltd A self-aligning damper including at least one ball-and-socket joint

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB462851A (en) * 1935-11-28 1937-03-17 Beaton & Son Ltd G Improvements in or relating to hinges
GB590924A (en) * 1945-04-09 1947-07-31 Miles Aircraft Ltd A self-aligning bearing or universal joint
GB795641A (en) * 1955-10-13 1958-05-28 Brueninghaus Gmbh Stahlwerke Improvements in spring suspensions for vehicles
GB921908A (en) * 1960-12-10 1963-03-27 Tom Edgerton Clarke Hirst Mechanical linkage joint
GB2071225A (en) * 1980-03-06 1981-09-16 Forster P Self-adjusting bearing
GB2106173A (en) * 1981-09-22 1983-04-07 Automotive Products Plc Ball and socket joints
JPH09158529A (en) * 1995-12-04 1997-06-17 Hitachi Kizai Kk Hydraulic vibration control damper
EP0867316A1 (en) * 1997-03-28 1998-09-30 Renault Device for fixing the upper end of a suspension strut on the vehicle body

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB462851A (en) * 1935-11-28 1937-03-17 Beaton & Son Ltd G Improvements in or relating to hinges
GB590924A (en) * 1945-04-09 1947-07-31 Miles Aircraft Ltd A self-aligning bearing or universal joint
GB795641A (en) * 1955-10-13 1958-05-28 Brueninghaus Gmbh Stahlwerke Improvements in spring suspensions for vehicles
GB921908A (en) * 1960-12-10 1963-03-27 Tom Edgerton Clarke Hirst Mechanical linkage joint
GB2071225A (en) * 1980-03-06 1981-09-16 Forster P Self-adjusting bearing
GB2106173A (en) * 1981-09-22 1983-04-07 Automotive Products Plc Ball and socket joints
JPH09158529A (en) * 1995-12-04 1997-06-17 Hitachi Kizai Kk Hydraulic vibration control damper
EP0867316A1 (en) * 1997-03-28 1998-09-30 Renault Device for fixing the upper end of a suspension strut on the vehicle body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2423128A (en) * 2005-02-11 2006-08-16 Sabre Rail Services Ltd A self-aligning damper including at least one ball-and-socket joint
GB2423128B (en) * 2005-02-11 2009-04-29 Sabre Rail Services Ltd Self-aligning damper

Also Published As

Publication number Publication date
GB9911581D0 (en) 1999-07-21

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