WO1995011812A1 - Adjustable suspension mount - Google Patents

Adjustable suspension mount Download PDF

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Publication number
WO1995011812A1
WO1995011812A1 PCT/AU1994/000667 AU9400667W WO9511812A1 WO 1995011812 A1 WO1995011812 A1 WO 1995011812A1 AU 9400667 W AU9400667 W AU 9400667W WO 9511812 A1 WO9511812 A1 WO 9511812A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
adjustable
mount
chassis
suspension
elongated
Prior art date
Application number
PCT/AU1994/000667
Other languages
French (fr)
Inventor
Kevin Mcintyre
Original Assignee
Kevin Mcintyre
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00Pivoted suspension arms; Accessories thereof
    • B60G7/02Attaching arms to sprung part of vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D17/00Means on vehicles for adjusting camber, castor, or toe-in
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00Indexing codes relating to suspension types
    • B60G2200/10Independent suspensions
    • B60G2200/14Independent suspensions with lateral arms
    • B60G2200/144Independent suspensions with lateral arms with two lateral arms forming a parallelogram
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00Indexing codes relating to suspension types
    • B60G2200/40Indexing codes relating to the wheels in the suspensions
    • B60G2200/462Toe-in/out
    • B60G2200/4622Alignment adjustment
    • 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
    • B60G2204/14Mounting of suspension arms
    • B60G2204/143Mounting of suspension arms on the 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
    • B60G2204/14Mounting of suspension arms
    • B60G2204/143Mounting of suspension arms on the vehicle body or chassis
    • B60G2204/1432Mounting of suspension arms on the vehicle body or chassis by vertical bolts or studs
    • 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
    • B60G2204/4102Elastic mounts, e.g. bushings having a pin or stud extending perpendicularly to the axis of the elastic mount
    • 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
    • B60G2204/419Gears
    • B60G2204/4192Gears rack and pinion
    • 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
    • B60G2204/42Joints with cam surfaces

Abstract

An adjustable mount for a motor vehicle suspension arm comprising a U-shaped bracket having a base flange (18) and two spaced apart parallel flanges (19). An elongate aperture extends through the base flange (18) parallel to and between the side flanges (19), a slidable guide plate (4) sliding on the base flange (18). An opening in the guide plate (4) aligns with the aperture and aligned openings in the side flanges (19) secure a suspension mounting bush (12). An adjusting securing member (3) has a pinion on one end which engages a rack on one of the side flanges (19). The adjusting securing member (3) passes through the opening in the guide plate (4), the base flange (18) and the chassis (9), thus clamping the mount to the chassis (9). The mount can be adjusted in the direction X-Y of the elongation of the aperture by rotating the securing member (3) so that the mount moves as the result of the pinion engaging the rack. The adjustable securing member (3) can be locked in position as can the mount to the chassis (9).

Description

ADJUSTABLE SUSPENSION MOUNT

In engineering practice it is common to incorporate pivot points whereby one or more members of a structure may be pivotly mounted in relationship to other members. Motor vehicles are an area of engineering whereby it is common to provide pivot points and accordingly while the examples contained in this present application are shown in relation to motor vehicles, this is not to exclude utilization of the invention in other engineering applications whereby it may be advantageous.

BACKGROUND ART Many modern motor vehicles incorporate suspension arms which are secured to the body of the chassis of the vehicle by way of pivoting bushes at the inner end of the arms. The arms may typically comprise the upper or lower wish bone arms of a wish bone type suspension, or the semi-trailing arm of an independent rear suspension. It is advantageous to include provision for adjustment of the suspension arm mounting point as the suspension (and in particular the front suspension) can easily go out of alignment through wear or through striking of the vehicle wheel against a kerb or other obstruction. This can cause the angle of the wheel relative to the body of the motor vehicle to be affected, resulting in increased tyre wear. The provision for adjustment of the suspension arm on its mounting point facilitates realignment of the suspension.

However, there are several problems in attempting to provide an adjustable suspension mount. In particular, because of the confined space of the pivot point of the suspension arm it is difficult to provide a suspension mount which can be easily adjusted. This problem is compounded due to the accuracy which is desired in adjustment of the suspension.

Furthermore there is a great desirability to execute the adjustment under load of the vehicle, that is without the necessity of raising the vehicle because the geometry of the suspension will change without the load and since the mount is required to support considerable weight from the suspension arm. DISCLOSURE OF THE TNVENTTON

The present invention aims to ameliorate at least some of these problems by providing an infinitely controlled adjustable mount for a motor vehicle suspension arm comprising a base flange adapted to be secured to the chassis of the vehicle by an elongated adjusting securing member, two sides projecting from said base flange and having first and second surfaces with an elongated aperture formed between said first and second surfaces and extending in a first direction downwardly from the base flange, a sliding reinforcing guide arranged to be received below the aperture and moveable therein said first direction, a suspension bush adapted to form the inner pivot point of the suspension arm, the mounting bush being connected to the two sides and arranged such that the suspension mount is infinitely and lockably adjustably eatable at a desired distance from the chassis by the elongated adjusting securing member passing through the aperture, the said movement being facilitated by rotation of the elongated adjustable securing member whose lower end comprises a means of causing a sliding adjustment movement upon said rotation and whose upper end comprises a means of securing the adjustable suspension mount and the adjustable securing member itself in rotationable or lockable relationship to the chassis of the vehicle by means of a fastener, such movement, lockable location and securing to the chassis being achieved by means of the rotatable elongated securing adjustment member having a lower end adapted to form gear teeth or alternatively adapted to form a peg, eccentricly cranked to the axis of the adjustment member, said gear teeth or peg engaging with a rack of teeth or a slot formed within the adjustable suspension mount, thereby achieving a mechanical advantage, whilst the upper end of the elongated adjustment member may be threaded and pass firstly through the sliding reinforcing guide incorporating a cylinderical aperture to maintain a vertical relationship between the elongated member and the body of the mount, then pass though the base flange of the suspension mount and finally pass through a cylinderical aperture in the vehicle chassis and by means of a threaded fastener both secure the suspension mount to the chassis and lockably eliminate further rotation of the elongated adjustment member, thus maintaining the adjustment executed.

The sliding reinforcing guide not only fortifies the structure of the base flange incorporating the elongated aperture therein and maintains the vertical relationship between the elongated adjustable securing member, it also serves to seal the interior of the suspension mount from the ingress of contamination and facilitate and ease the sliding relationship between the elongated securing adjustment member and the suspension mount. This in turn facilitates performing the adjustment under load without raising the vehicle, whilst the position and accessibility of the adjustment means also facilitates performance of the adjustment of the suspension mount from within the engine bay of the vehicle. To assist with understanding of the invention, reference will now be made to the accompanying drawings although this shall not restrict any other forms of the invention that may fall within its scope.

Fig. 1 and Fig. 2 show a prior art arrangement of non-adjustable suspension mounts generally incorporated in many cars by the manufacturer An embodiment of the present invention is then shown in Figs. 3 to 10, wherein:

Fig. 3 is a cross-sectioned geared adjustable suspension mount according to the present invention.

Fig. 4 is a cross-sectioned geared adjustable suspension mount as shown in section IV-IV in Fig. 3.

Fig. 5 is a three-dimensional projected view of a geared securing adjustment member.

Fig. 6 is a three-dimensional projected view of a sliding reinforcing guide (4).

Fig. 7 is a partially cross-sectioned view of a geared adjustable suspension mount assembly when incorporated into the chassis of a motor car according to the invention. Fig. 8 is schematic elevation of the top of the motor compartment showing the required adjustment tools, hexagonal key (7) and spanner (8).

Fig. 9 shows an alternative method for the elongated securing adjustment element of the invention wherein the flanged extension (13) is provided with a peg (16) extending downwards from the flange and eccentricly cranked to the axis of the securing adjustment member (3) such that continued rotation of the securing adjustment member in either a clockwise or anti-clockwise direction A-B will cause the mount to reciprocate in the X Y directions thus eliminating the possibility of damage through excessive application of force whilst adjusting.

Fig. 10 shows the alternate elongated securing adjustment means illustrated in Fig. 9 and above in working relationship to an alternate form of the adjustable suspension mount wherein a transverse slot (22) is adapted to engage the peg of the elongated securing adjustment member such that rotation of the member will cause a sliding relationship between the member (3) and the suspension mount, thereby altering the geometry of the vehicle suspension as required.

In operating, when wheel alignment is to be carried out, the non-adjustable suspension mounts (2) as supplied by the motor car manufacturer would be removed from wishbone (12) and chassis (9) and would be replaced by the adjustable mounts provided by the present invention, as shown in Figs. 3 to 8. With reference to Fig. 7, there is shown a suspension mount, including and incorporating an elongated securing adjustment member (3) as described before, such member (3) being engaged and rotatably supported in automobile chassis (9), as supplied by the car manufacturer. Fig. 8 shows in greater detail the upper portion of geared adjustment member (3), a hexagonal passage (5), a threaded upper section (6) and a threaded nut fastener (17).

Other parts of the securing member (3) are identified in Fig. 5, namely a flanged extension (13) having teeth (14) arranged about its circumference. These teeth meashingly engage with the horizontal formation of teeth (15) within the suspension mount.

To adjust camber to the positive or negative requires the suspension mount to be moved in a direction (x) or (y), as shown in Fig. 7. These movements are carried out by engaging hexagonal key (7) into hexagonal passage (5) of member (3) while fastening nut (17) is only slightly tightened. When the desired camber setting is obtained, fastening nut (17) is locked while hexagonal key (7) is being held to prevent adjustable securing member (3) from carrying out unintended rotation. This adjustment can be carried out from the engine bay of a car while the wheel is on an adjustment turntable (not shown) and no jacking up of the vehicle is required.

Claims

The claims defining the invention are as follows :-
1. An infinitely controlled adjustable mount for a motor vehicle suspension arm comprising a base flange adapted to be secured to the chassis of the vehicle by an elongated adjusting securing member, two sides projecting from said base flange and having first and second surfaces with an elongated aperture formed between said first and second surfaces and extending in a first direction downwardly from the base flange, a sliding reinforcing guide arranged to be received below the aperture and moveable therein in said first direction, a suspension bush adapted to form the inner pivot point of the suspension arm, the mounting bush being connected to the two sides and arranged such that the suspension mount is infinitely and lockably adjustably locatable at a desired distance from the chassis by movement of the elongated adjusting securing member within the aperture, the said movement being facilitated by rotation of the elongated adjustable securing member whose lower end comprises a means of causing a sliding adjustment movement having a machanical advantage upon rotation, and whose upper end comprises a means of securing the adjustable mount and the adjustable securing member itself in rotationable or lockable relationship to the chassis of the vehicle.
2. An adjustable mount as claimed in claim (1) wherein the means of causing a sliding adjustment of the pivot bush in relation to the chassis of the vehicle comprises an elongated adjustable securing member having gear teeth formed about its lower circumference the said teeth being meshingly engaged in a horizontal formation of teeth within the body of the adjustable mount such that rotation of the elongated adjustable securing member will cause an infinitely adjustable and lockable sliding relationship between the adjustable mount and the axis of the elongated member and thus the chassis of the vehicle in which the elongated member is rotationably or lockably secured.
3. An adjustable suspension mount substantially as claimed in claim (2) wherein the gear teeth are formed on the circumference of a flanged lower extension of the adjustable securing means where the said flanged extension has a diameter substantially greater than the mean diameter of the adjustable securing means.
4. An adjustable mount as claimed in claim (1) wherein the means of achieving a sliding adjustment of the pivot bush in relation to the chassis of the vehicle comprises an elongated member having a peg extending downwards, in an eccentricly cranked relationship to the axis of the elongated member and engaging in a traverse slot within the body of the adjustable mount such that rotation of the elongated member will cause a sliding relationship between the adjustable mount and the axis of the elongated member and thus the chassis of the vehicle in which the elongated member is rotationably or lockably secured.
5. An adjustable suspension mount substantially as claimed in claim 1 & 4 wherein the cranked eccentric peg projecting down from the lower end of the adjustable securing means is provided to the said adjustable securing means adjacent to the circumference of a flanged extension of the adjustment means which has a diameter substantially greater than the mean diameter of the adjustment securing means thereby increasing the throw of movement of the cranked eccentric peg and thus the adjustment range and movement of the suspension mount.
6. An adjustable mount for a motor vehicle as claimed in claims 1-6 wherein the upper end of the adjustable securing means is provided with a screw threaded end which passes through the mounting flange of the suspension mount and the chassis rail of the vehicle and is provided after it passes through the said chassis rail with a threaded fastening nut such that tightening of the said nut will firmly secure the suspension mount to the chassis rail and lockingly secure and maintain the adjustment executed by rotating the adjustable securing member in relation to the suspension mount.
7. An adjustable suspension mount as claimed in claims 1-6 and substantiably as herein described with reference to the drawings.
PCT/AU1994/000667 1993-10-29 1994-10-28 Adjustable suspension mount WO1995011812A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AUPM2126 1993-10-29
AUPM212693 1993-10-29

Publications (1)

Publication Number Publication Date
WO1995011812A1 true true WO1995011812A1 (en) 1995-05-04

Family

ID=3777320

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1994/000667 WO1995011812A1 (en) 1993-10-29 1994-10-28 Adjustable suspension mount

Country Status (1)

Country Link
WO (1) WO1995011812A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012014875A1 (en) * 2012-07-27 2013-08-08 Audi Ag Independent wheel suspension for motor vehicle, has wheel support and multiple suspension arms, particularly two-point suspension arms, where suspension arms connect wheel support with body of vehicle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285622A (en) * 1964-10-19 1966-11-15 John H Castoe Caster and camber adjusting clamp means
US4030737A (en) * 1975-08-01 1977-06-21 Bridges Alvin C Adjustable mounting for pivotal wheel support
EP0255921A2 (en) * 1986-08-04 1988-02-17 Specialty Products Inc. Camber adjustment
EP0257190A2 (en) * 1986-08-29 1988-03-02 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Device for adjusting the position of the wheels of a motor vehicle, especially for adjusting camber
US5052711A (en) * 1990-05-18 1991-10-01 A.O. Smith Corporation Vehicle alignment and verification system
US5163699A (en) * 1989-12-29 1992-11-17 Shim-A-Line, Inc. Cam washer for adjusting wheel alignment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285622A (en) * 1964-10-19 1966-11-15 John H Castoe Caster and camber adjusting clamp means
US4030737A (en) * 1975-08-01 1977-06-21 Bridges Alvin C Adjustable mounting for pivotal wheel support
EP0255921A2 (en) * 1986-08-04 1988-02-17 Specialty Products Inc. Camber adjustment
EP0257190A2 (en) * 1986-08-29 1988-03-02 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Device for adjusting the position of the wheels of a motor vehicle, especially for adjusting camber
US5163699A (en) * 1989-12-29 1992-11-17 Shim-A-Line, Inc. Cam washer for adjusting wheel alignment
US5052711A (en) * 1990-05-18 1991-10-01 A.O. Smith Corporation Vehicle alignment and verification system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012014875A1 (en) * 2012-07-27 2013-08-08 Audi Ag Independent wheel suspension for motor vehicle, has wheel support and multiple suspension arms, particularly two-point suspension arms, where suspension arms connect wheel support with body of vehicle

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