Abstract: A shim for a track roller frame is provided. The shim includes a first surface and a second surface. The first surface and the second surface are laterally spaced apart from each other. The first surface and the second surface define a thickness of the shim therebetween. The shim further includes a retention element formed on it. The retention element is configured to position the shim on the track roller frame. The retention element is also configured to restrict a movement of the shim relative to the track roller frame. The retention element is further configured to couple the shim to the track roller frame.

Abstract: A spring shock absorber unit for adjusting the elevation of a vehicle, including an oscillation absorber, a support spring to absorb shocks impacting the vehicle, an upper spring seat at which the support spring is supported, an adjustment device for adjusting the height of the upper spring seat with an actuator and an adjustment mechanism configured to convert the rotary motion generated by the actuator into a translational motion of the upper spring seat, an axial bearing for supporting the spring shock absorber unit, particularly the upper spring seat and/or a piston rod at a body of a vehicle, optimal utilization of the space available shall be possible in spite of a plurality of functional elements. The adjustment mechanism can additionally serve the function of an axial bearing.

Abstract: An SEA architecture for controlling the torque applied by an SEA that has particular application for controlling the position of a robot link. The SEA architecture includes a motor coupled to one end of an elastic spring and a load coupled to an opposite end of the elastic spring, where the motor drives the load through the spring. The orientation of the shaft of the motor and the load are measured by position sensors. Position signals from the position sensors are sent to an embedded processor that determines the orientation of the load relative to the motor shaft to determine the torque on the spring. The embedded processor receives reference torque signals from a remote controller, and the embedded processor operates a high-speed servo loop about the desired joint torque. The remote controller determines the desired joint torque based on higher order objectives by their impedance or positioning objectives.

Abstract: A wheel suspension for a motor vehicle has a transverse control arm that can be attached to a vehicle body by way of bearings and a spring-elastic torsion bar assembly, and can be rotated about a longitudinal axis. The torsion bar assembly has a body spring that can be attached to the vehicle body with one end, and a transverse control arm spring that is attached to the transverse control arm with one end. The body spring and the transverse control arm spring are coupled with one another at their free ends. The transverse control arm spring and the body spring are coupled with one another by way of a setting element or a releasable connection, whereby the setting element or the releasable connection, respectively, allows rotation of the ends assigned to one another, for setting purposes.

Abstract: A suspension assembly (40) in an automobile vehicle includes a support frame (42), a control arm (44) movable relative to the support frame (42), and a torsion bar (46) connected to the control arm (44) for resisting movement of the control arm (44). An adjustment lever (50, 150, 250, 350, 450, 550, 650) is connected to the torsion bar (46) for placing the torsion bar (46) in torsion. A hub (74, 174, 274, 374, 474, 574, 674) is positioned in a socket in the adjustment lever (50, 150, 250, 350, 450, 550, 650) for connecting the adjustment lever (50, 150, 250, 350, 450, 550, 650) to the torsion bar (46) at a plurality of primary drive positions at first angular increments as defined by a hexagonal connection.

Abstract: A firing mechanism of an explosively actuated tool for driving a fastener into a substrate includes a cocking rod and sear for entraining the firing pin with the firing pin being releasable on cocking by rotation of the sear. The cocking rod and sear form a structure subject to an axial and rotational bias by a coil spring anchored at one end to the structure and at the opposite end to a mounting which during assembly of the mechanism is rotated to apply torsional loading to the spring and is then locked into a housing of the mechanism in an angular orientation in which torsional loading is maintained in the spring.

Abstract: A suspension adjuster apparatus (48) suitable for use in a motor vehicle having a torsion spring (30) interposed and connecting a chassis (10) to a chassis member (14) is described. The suspension adjuster (48) includes an adjuster seat (66) and an elastomeric pad (68) disposed between the adjuster seat (66) and the chassis member (14). The adjuster apparatus (48) preloads the torsion spring (30) to provide a predetermined ride height while reducing the vibrations transmitted from the suspension to the chassis and passenger compartment of the motor vehicle.

Abstract: A torsion bar suspension system for a trailer that includes a suspension frame having a spindle at one end for rotatably carrying a wheel. The suspension frame is mounted to the trailer frame to pivot about an axis spaced from the wheel axis of rotation. A torsion bar is mounted to the trailer frame between the wheel end of the suspension frame and the suspension frame pivot axis. The torsion bar is operatively coupled to the suspension frame such that torque at the torsion bar resists pivoting of the suspension frame about its pivot axis. The torsion bar/suspension frame coupling comprises an arm of variable length to accommodate changing radius between the torsion bar and the suspension frame as the frame rotates about its pivot axis. The torsion bar and suspension frame are mountable and demountable to and from the trailer frame as an assembly. The suspension frame includes facility for adjusting height, camber and toe-in of the wheel.

Abstract: A heavy duty front suspension system especially for passenger buses includes square rubber torque springs supported by a spring frame assembly. The spring support frame includes a lower support having transverse reinforcement gusset plates extending at an angle from the frame assembly to enable the frame and torque spring support the loads transmitted by the bus and to withstand the variations in the road surface. The torque spring includes a hexagonal block on each end of the tubular shaft for removably mounting an adjustment lever to transmit the tension stresses to the spring. Each adjustment level has an eyelet connected to adjustable tension bars extending to a mounting bases which are anchored to the structural cross members of the bus body. A yoke element is firmly fixed to a trunnion that forms part of the spring frame assembly. A lower end of the yoke has an extension with a conical hole to fasten a shock absorber assembly.

Abstract: The torsion spring cartridge assembly disclosed herein is adaptable for use in practically any environment where oscillating motion is encountered. The assembly provides axle support for a rotating member as well as spring suspension for the axle. Dampeners can be provided to damp motion in one direction of oscillation or rotation. Serviceability is simplified since the entire assembly is removable for repair or replacement. The spring rate can be quickly and easily adjusted to accommodate environmental changes such as load, road conditions and weather. The torsion bars are protected from overstressing and possible distortion by a torsion limiter.

Abstract: A torsion spring cartridge assembly for supporting an oscillating member, the assembly including a bearing assembly, a torque assembly mounted for rotary motion in said bearing assembly, a counter-torque hub, and a set of torsion bars connecting the torque assembly to the counter-torque hub, the cartridge assembly being adapted to be removably mounted in a support structure with the bearing assembly and counter-torque hub mounted in a fixed relation so that the torque assembly is free to rotate within the limits of the torsion bars. A dampener can be provided to restrict the motion of the torque assembly in one direction of motion.

Abstract: A system for enabling modification and adjustment of an automobile torsion bar suspension assembly housed in a tubular beam housing includes a plurality of torsion spring stiffener members, each comprising a tubular member dimensioned to be slidably received about the torsion leaf spring assembly within the beam housing. The tubular member includes opposed end portions provided with an inner peripheral surface formed complementary to the outer surface conformation of the leaves of the torsion bar assembly and adapted to engage the leaves assembly in nonrotating fashion. The stiffener member acts to rotationally immobilize a segment of the length of the torsion leaf assembly, thereby increasing the stiffness of the torsion spring. The invention also includes a socket tool having a recess in one end formed in complementary fashion to the outer surface conformation of the torsion leaf assembly and adapted to be engaged thereon.