Abstract: A suspension coil spring, when assembled to a suspension device, in which a spring reaction axis is positioned coincident with or sufficiently close to a load input axis, and the design and manufacture of coil springs are facilitated. Namely, A suspension coil spring (19) in a free state is formed so that a coil axis (AC) is bent in V-shape at bend point (PB) and the distance from the end turn center (CU) of the upper seating surface (38) to an imaginary coil axis (AI) is an upper inclination amount (VU), and the distance from the end turn center (CL) to the imaginary coil axis (AI) is a lower inclination amount (VL). When the suspension coil spring (10) is interposed between spring seats (22, 24) in the suspension device and compress along a strut axis, the spring reaction axis of the suspension coil spring (10) is inclined and offset with respect to the imaginary coil axis (AI) according to the inclination amounts (VU, VL).

Abstract: A suspension stop for a motor vehicle wheel assembly comprising a fixed member adapted to be fixed to the chassis (2) of the vehicle and a rotating member adapted to be fixed to the suspension spring (4) so as to be rotationally moved under the effect of the forces exerted by the spring. The stop includes a device for measuring the vertical forces applied to the vehicle wheel. The device includes a pulse-generating coder (11) fixed to one of the members, a sensor (12) fixed to the other member which is able to detect these pulses so as to determine the angular position of the rotating member with respect to the fixed member, and a calculation device able, from this position, to calculate the corresponding vertical force applied. A method of measuring the vertical forces applied to a wheel associated with the chassis (2) of a vehicle by such a stop is also provided.

Abstract: A swivel mounting is made as a double-row roller bearing and has an outer ring with a first outer track and a second outer track, a first inner ring with a first inner track, and a second inner ring with a second inner track which is located axially next to the first inner ring. Two sets of rollers roll between the outer tracks of the outer ring and the inner tracks of the inner rings. The swivel mounting is constructed such that the outer ring with the first inner ring and the second inner ring forms one axial slide bearing at a time.

Abstract: The object of the present invention is to improve the production efficiency by making its bonding process unnecessary to simplify the production process. The method of production comprises the step of integrally incorporating a magnetic material when the stationary holders 21 and 22 of the stationary member and the movable holder 31 of the movable member 30 are molded with a non-magnetic material such as a plastic material and the like. Therefore, a magnet unit in which the stationary magnets 23 and 24 or the movable magnet 32 is integrally incorporated into the stationary holders 21 and 22 or the movable holder 31 can be provided only by giving magnetization treatment on the magnetic material without using a bonding process.

Abstract: Control data such as an optimal filter coefficient or the like of an engine mount is obtained by adaptation control or the like with respect to a reference vehicle F provided with a reference engine mount 20k, and the control data is stored in a reference data map storage medium 35 as a reference data map. Mount characteristics of the reference engine mount and a mass-produced engine mount 20m are measured. A correction data map which is a deviation from the reference data map is obtained for the control data of the mass-produced engine mount from a difference between both the mount characteristics, and the correction data map is stored in the correction data map storage medium 36. Both the data map storage media are added to the active control apparatus of the mass-produced vehicle M. Using both the data maps, it is possible to appropriately and actively control the vibration of the mass-produced vehicle without variation.

Abstract: A pneumatically operated active vibration damping device is disclosed, which comprises: a first and a second mounting member which are spaced apart from each other and are attachable to a two members of a vibration system; an elastic body elastically connecting the first and second mounting member; a working air chamber adapted to apply an oscillating force between the first and second mounting member, based on a periodic change of an air pressure in the working air chamber; and a volume regulator adapted to regulate a volume of the working air chamber.

Abstract: A roller bushing assembly (21d, 21e, 21f) designed to enable a low tolerance, frictional fit within an out-of-round or otherwise distorted support member (5, 9) includes a bushing member (29a, 216) having an outer surface (102) machined to provide various axially spaced, annular grooves (127-130, 132 and 242-250). Between or directly adjacent respective ones of the annular grooves (127-130, 132 and 242-250) are defined a plurality of axially spaced and radially extending ribs (113-122 and 232-240). The axial outermost ribs (113, 122 and 240) are preferably elongated relative to the remaining ribs (114-121 and 232-239) and have annularly chamfered portions (124, 125 and 252). The ribs (113-122 and 232-240) are adapted to shear upon mounting of the bushing member (29a, 216) within an out-of-round or otherwise distorted support. By providing the shearable ribs (113-122 and 232-240), the bushing assembly (21d, 21e, 21f) can be effectively mounted within a greater range of varying sized support members.

Abstract: A roller bushing assembly for use in a vehicular leaf spring suspension system pivotally supports an end of a leaf spring so as to minimize transmission of roadway induced shock and vibration loads to the vehicle and driver. The roller bushing assembly includes a tubular housing containing roller bearings for support of a shaft which is connected to a vehicle chassis. Free flexure of the spring is facilitated by providing low friction pin connections that minimize resistance of the vehicle/spring connections to rotation of the spring ends and extension and contraction of the spring. A method of installation of a bushing having bearings therein includes supporting the bearings on a pilot and force-fitting the tubular housing into a spring eye with a pressing tool. After removal of the pilot from the bearings, the shaft is inserted into the bearings and seals are slid along the shaft to abut and seal the bearings against intrusion of foreign matter.

Abstract: A vehicle suspension friction control assembly includes vehicle suspension having at least two elements which are slidable with respect to each other in the fore-and-aft direction thereof. The assembly also includes a friction control device comprising a resiliently deformable member which is located between the suspension elements and means for limiting deformation of the deformable member to a predetermined degree in the fore-and-aft direction of the suspension elements. The suspension elements are slidable with respect to each other against friction when the deformable member has been deformed to the predetermined limited degree.

Abstract: An air spring has pair of spaced end members for mounting the spring at spaced locations on a structure. A flexible sleeve of elastomeric material is sealingly engaged with the end members and forms a pressurized fluid chamber therebetween. A post is mounted on one of the end members and extends into the fluid chamber. A shock absorbing bumper formed of a high strength plastic is snap-fitted on an enlarged top of the post. A plurality of circumferentially arranged flexible fingers define an opening in a base of the bumper, and are snap-fitted over the enlarged top of the post which extends into the opening and seat into an annular undercut formed in the post beneath the enlarged top. The snap-fitted plastic bumper replaces the heretofore used elastomeric bumper.

Abstract: A roller bushing assembly for use in a vehicular leaf spring suspension system pivotally supports an end of a leaf spring so as to minimize transmission of roadway induced shock and vibration loads to the vehicle and driver. The roller bushing assembly includes a tubular housing containing roller bearings for support of a shaft which is connected to a vehicle chassis. Free flexure of the spring is facilitated by providing low friction pin connections that minimize resistance of the vehicle/spring connections to rotation of the spring ends and extension and contraction of the spring.