Abstract: A suspension and method applies the unsprung weight of the wheels and axles to reduce the motion of the sprung weight of chassis. The suspension has a load bolster supporting the sprung weight at a ride height and a rebound member between the wheel axle support and the chassis. The rebound member is to exert increasing force with motion of the sprung weight away from the axle but the member reduces its force on the load bolster during jounce.

Abstract: An apparatus and method for rebound control by a rebound coil spring placed within a shock absorber that is aligned along an axis between an axle and a chassis resists motion of the chassis away from the axle. A tube encloses a piston that fits in sliding sealing reciprocal engagement along an axis so controlled fluid flow may pass through passageways damping axial motion of the piston relative to the tube. A lock ring circular group assembly carried upon a shaft and within the tube is spaced apart from the piston and segmented shoes carried on the lock ring circular group assembly, are formed to engage the tube and bear resiliently against the tube in frictional engagement therewith.

Abstract: A vehicle suspension including a subassembly comprising a coil spring mounted between two supports of variable spacing. One of the supports (18) is constrained to move along a trajectory that is curved relative to the other support, and the pitch of an end portion of the corresponding end turn (20a) of the spring (12) varies in a manner that is negative or zero.

Abstract: In a front suspension device for an automotive vehicle, in which wheel support members of right and left front wheels are coupled with each other via a steering unit, outer ends of two lower arms are pivotally attached to the wheel support members, and inner ends of two lower arms are pivotally attached to a vehicle body via a resilient member, there are provided a damping device equipped with a coil spring and attached to one of the two lower arms at its lower end and to the vehicle body at its upper end respectively, and a suppression (rotational torque absorption) device for suppressing a toe-change of the front wheels caused by a rotational torque applied according to extension and contraction of the coil spring of the damping device.

Abstract: A vehicular suspension system is provided in which the lower end of a coil spring (16) is positioned lower than a support part (30) where a suspension arm (14) is supported on a vehicle body, the lower end of the coil spring (16) is positioned on the laterally inner side of the vehicle body relative to the upper end of the coil spring (16), and when a wheel (W) rebounds and the coil spring (16) is elongated, the lower end of the coil spring (16) can therefore move along its axis. As a result, the coil spring (16) can be prevented from bending at a time of rebound, the spring constant thus increases, and the lower end of the coil spring (16) is pressed strongly against a spring seat (51) and thus prevented from lifting, thereby preventing any degradation in the turning performance. This can prevent the lower end of the coil spring of the vehicular suspension system from lifting from the spring seat when the coil spring is elongated, thus preventing any degradation in the turning performance.

Abstract: A device for suspension and level adjustment in motor vehicles has a first connection element for connecting to at least one vehicle wheel, a second connection element for connecting to the body of the motor vehicle, at least one chassis spring, and an adjusting device. The adjusting device has two bearing points which are adjustable in their distance to one another via a gear driven by a motor. A first bearing point is connected to one connection element. A second bearing point is supported against the other connection element via the chassis spring. The gear has a coiled spring and at least one engagement element which engages between at least two coils of the spring adjacent to one another. The gear spring is assigned to the one bearing point and the engagement element is assigned to the other bearing point. The gear spring and the engagement element are pivotably mounted relative to one another and, for adjusting the distance of the bearing points, are able to be rotationally driven using a drive motor.

Abstract: A vehicle chassis with a spring bracket supporting a helical spring braced between two spring plates. a region of a piston and a shock absorber tube is disposed within the helical spring. At least one of the spring plates is axially adjustable by a drive unit having a circular electric motor with a stator and a rotor, and a transmission having a threaded spindle and a threaded screw.

Abstract: A wheeled conveyance comprising a chassis (4), support means for a load mounted on the chassis (4), a suspension assembly mounted on the chassis (4), and at least one shock absorber means (38) acting on at least part of the suspension assembly and adapted and arranged to limit tilting of the chassis (4) relative to at least part of the suspension assembly under dynamic load conditions tending to produce such tilting. The suspension assembly comprises spring means (32) and suspension arms pivotably mounted on the chassis (4) and extending in forward and rearward directions in the region of opposite sides of the chassis (4). Each suspension arm has a wheel (16, 26) rotatably mounted at the free end.

Abstract: A suspension and method applies the unsprung weight of the wheels and axles to reduce the motion of the sprung weight of chassis. The suspension has a load bolster supporting the sprung weight at a ride height and a rebound member between the wheel axle support and the chassis. The rebound member is to exert increasing force with motion of the sprung weight away from the axle but the member reduces its force on the load bolster during jounce.

Abstract: A suspension system for a vehicle includes a plurality of spring assemblies, each spring assembly including, in combination, a coil spring and an air spring arranged around a common central axis, and being mounted above the rear axle of the vehicle. A method for improving a vehicle's ride, handling, and load-carrying capability includes providing the foregoing suspension system for which respective coil springs are positioned within respective housings; partially inflating respective air springs thereby causing respective coil springs to partially collapse into their housings when improvement to the ride is desired in combination with improvement in load-carrying ability; and completely inflating respective air springs thereby causing respective coil springs of the plurality of spring assemblies to substantially completely collapse into their housings when maximum load-carrying ability is desired.

Abstract: A suspension and method applies the unsprung weight of the wheels and axles to reduce the motion of the sprung weight of chassis. The suspension has a load bolster supporting the sprung weight at a ride height and a rebound member between the wheel axle support and the chassis. The rebound member is to exert increasing force with motion of the sprung weight away from the axle but the member reduces its force on the load bolster during jounce.

Abstract: A vehicle suspension system couples an axle to a vehicle frame so that the axle pivots about a first location with respect to the frame when the axle has a first range of articulation. The axle pivots about a second location with respect to the frame extending laterally out from the first location when the axle has a second range of articulation greater than the first range of articulation. When the axle exceeds the second range of articulation, the suspension system retains the axle in a substantially rigid contact with the vehicle frame.

Abstract: The vehicle suspension lift spacer of the present invention fits between the coil spring and the upper spring receiver of the front suspension. It is made by welding stock flat and cylinder stock material, making it cheap to make and sufficiently rugged for the desired use. The lift spacer is generally cylindrical, having a common axis with an axially mounted shock absorber. The lift spacer has a flat ring upper attachment plate having upward-spaced bolts for attachment through the upper coil spring receiver and shock tower mounts. A lift member is a cylindrical section welded coaxially to the underside of the upper attachment plate and determines the amount of lift of the lift spacer. A flat ring bearing is coaxially welded to the cylindrical lift member for bearing against the coil spring. A cylindrical guide member is welded to the lower side of the bearing plate.

Abstract: A coil spring mounting structure for a suspension strut includes a spring bracket secured to a shock-absorber. The spring bracket has a coupling hole, which is configured to receive a screw threaded end of a coil spring. Nuts are screw-coupled to the screw threads of the coil spring, thereby fixing the coil spring to the spring bracket.

Abstract: A spring element comprises an insert (1) of a compact material having a rigidity which is higher than that of the material of which the spring element consists, and comprises a part (2) which acts as an additional spring and a part (3) which acts as a spring pad.

Abstract: The invention concerns a shock strut for a MacPherson wheel suspension comprising a shock absorber with a body (21) and a rod (22). A coil spring (24) is mounted on a lower spring retainer (23) integral with the shock absorber body (21). The first turn of the spring (24) of the MacPherson strut can be immobilized on and relative to the lower spring retainer (23) in various predetermined positions on the lower spring retainer (23).

Abstract: A shock absorber is installed in a power wheelchair to absorb shocks transmitted from rear wheels of the power wheelchair. The shock absorber includes a bracket, a seat and a suspension device. The suspension device is installed between the bracket and the seat and includes two suspension springs. Each suspension spring has a different spring stiffness. The seat is pivotally connected to the bracket at a pivot point between the two suspension springs. Consequently, the suspension springs will balance absorbing shocks caused by bumps while the power wheelchair is moving.

Abstract: A wheel suspension with a wheel-guiding strut in provided which includes a helical compression spring, a shock absorber, and a suspension arm, and which is connected to a body and to a wheel. The helical compression spring is preferably made such that it at least partially compensates for transverse forces on the shock absorber or on the piston rod of the shock absorber. Provisions are made for reducing or minimizing or eliminating the force which is delivered to the steering mechanism and which results from the difference between the components of the helical compression spring forces FF acting in the direction of travel, and thus the reaction forces RF, on the left and right sides of the vehicle.

Abstract: A spring guide for maintaining the alignment of a vehicle's suspension coil spring and for reducing the tendency for such springs to buckle. The spring guide is a smooth tube which fits into and slides in an elastomeric bushing mounted to the top bearing plate of a coil spring assembly. The lower end of the spring guide is threaded into the pivoting support for the lower end of the spring. The guide ensures that the ends of the spring are aligned with respect to one another.

Abstract: A suspension and method applies the unsprung weight of the wheels and axles to reduce the motion of the sprung weight of chassis. The suspension has a load bolster supporting the sprung weight at a ride height and a rebound member between the sheel axle support and the chassis. The rebound member is to exert increasing force with motion of the sprung weight away from the axle but the member reduces its force on the load bolster during jounce.

Abstract: A mounting element for the wheels of rolling containers comprises: a load-bearing member rigidly attachable to a bottom edge of a container designed to be rolled along a surface; an arm supporting at least one wheel designed to enable the container to be rolled on the surface; a pivot connecting the load-bearing member to the arm; and a helical spring located between load-bearing member and the arm. The latter, together with the load-bearing member defines a substantially sealed chamber within which the spring is enclosed and protected, and presents three end portions located at respective vertices of a triangle, a first portion being rotatably attached to the pivot, a second portion rotatably supporting the wheel and a third portion being attached to the spring.

Abstract: A suspension, includes a load-carrying spring having one end indirectly supported via a spring washer by a component of a vehicle body of a motor vehicle and another end indirectly supported via a second spring washer by a wheel support assembly of the motor vehicle. Disposed at the one end of the load-carrying spring is a cup-shaped receptacle, and at the other end an abutment which has a stop surface. A slave spring is arranged in coaxial relationship to the load-carrying spring and has one end received in the receptacle and another end intended for engagement with the stop surface of the abutment. The receptacle and/or the abutment has a radially outwardly extending support ring for at least partially engaging behind the respective one of the spring washers at a side distal to the load-carrying spring to form a pre-fabricated unitary structure with the load-carrying spring.

Abstract: A balance suspension system for a vehicle having a body and at least four wheels (FR, FL, BR, BL) independently supported for movement between upper and lower positions relative to the body, the suspension system includes a balance mechanism adapted to support suspension forces in the vehicle and a plurality of actuating elements (73, 74, 78, 79) which are responsive respectively to the positions of the wheels relative to the body and are operable on spaced apart points on the balance mechanism. The system also includes control means for controlling relative movement between the balance mechanism and the body. The control means act to redistribute suspension forces between the body and the wheels, thereby to induce predetermined suspension behaviour.

Abstract: An improved suspension system is disclosed for a personal mobility vehicle comprising an arm assembly pivotably mounted to a fame section. A wheel assembly is connected to the arm assembly. A spring is interposed between the arm assembly and the second frame section for resiliently suspending the wheel assembly relative to the frame section. In one example of the invention, the frame section comprises a rigid frame section of the personal mobility vehicle. In another example of the invention, the frame section comprises a resilient leaf spring resiliently suspending the assembly of the personal mobility vehicle. In another example of the invention, a resilient coil spring interposed between the arm assembly the resilient leaf spring for providing a multiple resilient suspension for the wheel assembly.

Abstract: The invention concerns a shock strut for a McPherson wheel suspension comprising a shock absorber with a body (21) and a rod (22). A coil spring (24) is mounted on a lower spring retainer (23) integral with the shock absorber body (21). The shock strut comprises means capable of blocking the first turn of the spring (24) on and relative to the lower spring retainer (23) in various predetermined positions on the lower spring retainer (23).

Abstract: A swivel wheel assembly includes a wheel axle, and a vehicle wheel rotatably mounted on the wheel axle. A shock-absorbing wheel fork is secured to opposite ends of the wheel axle and includes first and second elongated spaced-apart support arms. A pivot pin extends through pin openings formed with proximal ends of the first and second support arms. A base is carried by the pivot pin, and is adapted for pivoting movement about an axis defined by the pivot pin. An adjustable shock absorber dampens pivoting movement of the base relative to the vehicle wheel, thereby absorbing the energy of sudden shocks to the vehicle wheel during use.

Abstract: The invention provides a new method of vehicular suspension, whereby the attributes of greater design freedom, reduction of frontal area, lower center of gravity, increased fuel efficiency, decreased polar movement, increased safety due to improved handling and a more linear relationship of springing force to wheel travel are accomplished with the outboard primary lever (outrigger bell crank) and the associated linkages.

Abstract: A coil spring (1) and support bearing (2) arrangement for suspension struts (3) with a shock absorber, supporting a steering knuckle of an automobile has a rolling-contact bearing (7), with an axis (x); a receiving body (6), arranged below the rolling-contact bearing (7) in which the rolling-contact bearing is inserted; and a coil spring (1). The coil spring (1) has a force application line (f), which is offset relative to the axis (x) of the rolling-contact bearing (7) at an angle (a). The coil spring (1) has a first portion (8), which, starting from the winding end (17), winds around the receiving body (6). The first portion (8) abuts the receiving body (6). The winding end (17) of the coil spring (1) is arranged in the area of the plane E1 formed by the force application line (f) and the axis (x).

Abstract: A suspension assembly has two plates, two sleeves, two wheel mounts and two shock absorbers. Each plate is pivotally attached to one side of the front end of the frame in a first lateral direction. Each sleeve is pivotally attached to one of the plates in a second lateral direction parallel to the first lateral direction. Each wheel mount is pivotally attached to one of the sleeves in a vertical direction perpendicular to the first and second lateral directions. One front wheel is rotatably mounted on each wheel mount. Each shock absorber is pivotally connected between each wheel mount and the frame of the scooter. Accordingly, the front wheels are independently suspended. A force applied to the front wheels will be absorbed by the shock absorber. To steer and to drive the scooter is more comfortable.

Abstract: An integrated assembly for large vehicles including independent suspension components, supporting side plates and axle and frame components. Each of the side plates is a weldment in which the main part is a series of metal plates formed by bending a single sheet. Pockets are formed on the outside surfaces of the side plates. The pockets support the upper ends of suspension components, i.e., a coil spring, a shock absorber and a jounce bumper, while the lower ends of the suspension components are carried by a lower control arm. The half-shafts of each axle, extend through the side plates which are carried by two C-shaped main frame members.

Abstract: A wheel suspension with a wheel-guiding strut in provided which includes a helical compression spring, a shock absorber, and a suspension arm, and which is connected to a body and to a wheel. The helical compression spring is preferably made such that it at least partially compensates for transverse forces on the shock absorber or on the piston rod of the shock absorber. Provisions are made for reducing or minimizing or eliminating the force which is delivered to the steering mechanism and which results from the difference between the components of the helical compression spring forces FF acting in the direction of travel, and thus the reaction forces RF, on the left and right sides of the vehicle.

Abstract: An after-market automotive performance suspension spring and spring system includes a tapered helical coil suspension spring that tapers from a larger diameter upper end to a smaller diameter lower end, and has a substantially linear spring rate. The spring is used in conjunction with a height-adjustable adapter that adapts the lower spring end, which is smaller than the lower end of the stock automobile spring which it replaces, to the stock automobile lower spring seat. The larger diameter upper end of the spring is large enough to fit the stock upper spring seat of the automobile without requiring any modification to the pillar upper mount.

Abstract: A suspension and method for using unsprung weight of the wheels and axles to assist in reducing the motion of the sprung weight of chassis and/or body. The suspension has a load spring supporting the sprung weight at a ride height and another spring between the wheel axle support and the chassis and/or body that exerts increasing force with motion of the sprung weight away from the axle and reducing its force on the load spring during jounce as the member resists the motion of sprung weight.

Abstract: A recreational all terrain vehicle has a set of rear wheels attached to a frame assembly with a swing arm. The rear wheels are driven by a flexible transmitter, such as a chain. To tension the chain, a pair of laterally extending bolts are loosened while a generally longitudinally extending member is adjusted to move an axle associated with the rear wheels. The housing portion of the swing arm that receives the axle is substantially enclosed.

Abstract: A suspension system for a vehicle has an upper control arm and an associated lower control arm for mounting a wheel on the vehicle body. A hydro-pneumatic spring is connected between one of the control arms arid the vehicle body. A compensating spring is associated with the hydro-pneumatic spring and is operable to act in opposition to the force exerted by the hydro-pneumatic spring as the hydro-pneumatic spring approaches full extension.

Abstract: The invention is a mechanical suspension system for cab-over tractors, specifically those used in terminal transport having two front cushion dual suspension components on the front pivot area of the cab to tractor frame connection and a single rear cushion dual suspension component on the rear of the tractor frame at the cab-over latch area, the three point dual suspension system providing a more stable suspension package than the four point and other single suspension systems.

Abstract: A four-link suspension system provides an almost infinite amount of adjustments to compensate for changing weather and road conditions. The suspension system includes a main support bracket with a plurality of holes formed therein and a plurality of links attached thereto. Each of the plurality of links has a plurality of holes formed therein for engaging a respective one of the plurality of holes formed in the main support bracket. The particular placement and combination of the holes in the main support bracket and each link, the size of each hold and slot, the shape of each link, the shape of the main support bracket, and the engagement of the links to the main support bracket permit the 4 four-link suspension system to have hundreds of possible instant center (I/C) choices and locations. The assortment of configurations available allow the user to have an ideal four-link suspension system for any particular application.

Abstract: A maneuverable self-propelled cart having a drive assembly including independently suspended drive wheels for propelling the cart over rough or uneven surfaces. The drive assembly is comprised of a drive wheel carriage having at least two drive wheels. The drive wheel carriage may include a turntable or the like adapted to rotate the carriage about a substantially vertical axis relative to the frame of the cart. Each drive wheel may be independently suspended beneath the cart frame by a suspension apparatus so as to allow each drive wheel to individually engage a ground or floor surface.

Abstract: The present invention is for a device for mounting of wheels so that they may move in a preferably vertical direction at right angle to the wheel shaft. The invention is also standing board for prams having such wheel mounting. At its from end the standing board has a mounting means by which the standing board is pivotably mounted to the rear axle of a pram the main direction of movement of which is shown by arrow. The turning shaft of the wheel is mounted in a movable sleeve the movements of which are controlled both by a brushing which surrounds the sleeve and by a tube which is partially inserted into a groove in the sleeve. A spring is placed into the groove in the sleeve so that the spring contacts both the bottom of the groove and the end of the tube which penetrates the groove.

Abstract: A wheel suspension system for motor vehicles has a horizontally positioned spring-and-damper unit which, by way of levers and links, interacts with wheel carriers of opposite wheels. In order to design the wheel suspension system in a favorable manner with respect to space requirements while ensuring proper functioning of its components, a horizontally positioned spring-and-damper unit and a lever, which can be swivelled about an axis which is upright or relatively slightly inclined, are provided for each side of the wheel. The lever is applied by way of a first lever section to the spring-and-damper unit and is connected, by way of a second lever section as well as a first link to one of the wheel carriers. The lever is connected to a stabilizer by way of a third lever section as well as a second link.

Abstract: A suspension system 10 has one or more protrusive seating portions 21L;22L, on which a coil spring 13 is situated, and is formed in a partly circumferential portion of a spring seat 14L supporting the coil spring 13, and a tapered surface 23L for preventing body warp or bending of the coil spring 13 in a circumferential portion of at least one protrusive seating portion 22L.

Abstract: The invention relates to a linear sliding connection (1; 14; 18; 21; 29; 33) between two structural parts (2, 3, 9, 10; 3, 38, 39, 40, 2, 3, 10, 25). Said structural parts can slide back and forth in relation to each other with a damping effect in at least one of the two directions of movement. The invention is characterised by a mechanical friction damping element with a wire basket (4) which acts as a friction or clamping element. Said wire basket (4) encompasses the first (2, 3; 3, 38) of the two moveable structural parts concentrically on a longitudinal section in such a way that it rests on the outer surface of said first structural part, with one axial end (first basket end 4a) fixed on the second structural part (9, 10; 39, 40; 25, 10) and the other axial end (second basket end 4b) positioned on said second structural part in such a way that it is axially slideable in a longitudinal direction.

Abstract: A base structure for a mobile access platform includes a chassis (10) having at least two pairs of wheels (12, 16a, 16b), at least a first one of the pairs of wheels (16a, 16b) including a suspension mechanism including, for each wheel, a swing arm member (18) on which the wheel is mounted, the swing arm member (18) being arranged to pivot about a substantially horizontal pivot axis, a stop member (21) arranged to engage the swing arm member (18) so as to limit upwards movement thereof, and a biassing mechanism (24) arranged to exert a biassing force on the swing arm member (18) to urge the swing arm member upwards towards the stop member (21). The biassing force is less than the force needed to maintain the swing arm member (18) in engagement with the stop member (21) when the wheel is unsupported. The arrangement is such that the swing arm members (18) normally engage the stop members (21) when the mobile access platform is standing on flat, level ground.

Abstract: The present invention provides a combination isolator and jounce bumper. The combination isolator and jounce bumper is disposed on a spring seat of a suspension system and includes a locating member in the form of a projection extending therefrom. The projection is inserted into an aperture in the spring seat so that the isolator assumes a preselected orientation relative to the spring seat when positioned thereon. A coil spring is secured to a spring retaining portion of the combination isolator and jounce bumper. An orientation member in the form of a second projection is provided at a pre-selected location on the spring retaining portion. The second projection engages an end of the coil spring so that the coil spring assumes a preselected orientation relative thereto. The jounce bumper portion of the isolator projects upwardly from the spring retaining portion so as to be coaxially aligned with the coil spring.

Abstract: The present invention is directed to a vehicle wheel suspension which includes a strut mounted at the upper end thereof on a vehicle body for supporting a wheel, a lower seat fixed to the strut, an upper seat mounted on the vehicle body, and a helical compression spring mounted between the lower seat and the upper seat, with the strut enclosed in the spring. The spring has a coil axis substantially curved at a predetermined radius of curvature in an unloaded state of the spring. The lower seat is tilted at a first predetermined angle in such a direction that the longitudinal length of the spring at the outside of the vehicle body is shortened when the spring is mounted between the upper seat and the lower seat, and/or the upper seat is tilted at a second predetermined angle in such a direction that the longitudinal length of the spring at the inside of the vehicle body is shortened when the spring is mounted between the upper seat and the lower seat.

Abstract: A wheel suspension for a motor vehicle, particularly a rear wheel suspension, has a spring which is arranged separately from a shock absorber. The spring and the shock absorber are supported at their lower ends, by way of a common console arranged approximately transversely to the vehicle, on a longitudinal rear axle tube. An upper end of the shock absorber is swivellably held on a carrying device fastened to a vehicle body member. An upper end of the spring is disposed in a supporting device integrated in the vehicle body member.

Abstract: A camber angle control suspension system includes left and right swing arms having ends connected to left and right axle shafts, and a trailing arm having opposite ends with downwardly bent elbows which are pivotally connected to the swing arms. The trailing arm is rotatably connected to a vehicle body by rotatable bushings mounted on the trailing arm. Shock absorbers are interposed between the swing arms and the vehicle body so as to make a connection therebetween, and springs are coiled around the shock absorbers. A stabilizer bar is fixed at opposite ends to the swing arms and connected to the vehicle body by rotatable bushings at a center portion thereof.

Abstract: In order to reduce a partially concentrated load affecting a spring seat by repulsion of the coil spring, an edge of the upper end of the coil spring is disposed against a portion of the spring seat having a relatively low solidity. Therefore, it is possible to eliminate the problem that the coils of the coil spring interfere with each other if a mid-portion of the coil spring in vertical direction is offset to the side to provide a partially concentrated load.