Abstract: "A vehicle and the ballistic shock isolator therefor including a turret, a sensor assembly and a shock isolator isolating the turret from the sensor switch and including upper and lower annular members, a plurality of leaves secured at opposing ends thereof to the annular members, each of the leaves having a corrugated bellows shaped portion in the form of an even number of similarly shaped portions, alternate ones of the similarly shaped portions having an open end in opposing directions, each of the leaves varying in thickness and width in a direction from the upper annular member to the lower annular member. The variation in width of the portion is alternately from wide to narrow and then from narrow to wide in a direction from the upper annular member to the lower annular member.
April 8, 1991
Date of Patent:
January 25, 1994
Texas Instruments Incorporated
David L. Amil, William D. Bracken, Robert W. Coburn, Richard L. Knipe, Gregory G. Mooty, David D. Ratcliff, Daniel W. Stanley, Kenneth L. Taylor, Steven S. Stresau
Abstract: An aircraft wheel and brake assembly having an axle with a circular flange in abutting contact with an annular viscoelastic vibration dampening plate which in turn abuts an annular flange of a torque tube. The flanges are rigidly secured to the dampening plate which is solid. The torque tube supports for axial movement a Plurality of stator discs which are interleaved with a plurality of rotor discs, such rotor discs being axially slidable but connected to the rotatable wheel and wheel support which is journaled for rotation on the axle. Variations of the location of such dampening plate include locating such plate between the torque tube and the motive drive piston which actuates the frictional engagement of the rotor and stator discs to effect a braking action.
Abstract: The disk-brake comprises a clevis (5), a sliding caliper (3) and an operating mechanism, the latter comprising a mechanism (19) having a wedge displaceable longitudinally between the caliper (3) and a piston, to move them apart, through the action of a pusher (21), which in turn is driven by the pushrod (25) of a drive mechanism (23). The drive mechanism (23) is fastened to the clevis (5) of the brake and the pusher (21) exerts on the wedge a force whose main component is parallel to the plane of the disk and directed in the predominant direction of rotation of the latter.
Abstract: This invention relates to a braking device for indoor exercise bicycles. In particular, this device is composed of a rotor, multiple rubber magnets, a wheel for the transmission belt, a stator, a coil, two pivot bearings, and an axle; when all of these components are assembled in place, the transmission belt can start the wheel for the transmission belt which drives the rotor in spin, producing relative motion between the rubber magnets of the rotor and the coil of the stator. There are magnetic flux loops between the rubber magnets and the stators. Hence, as the rotor spins, the coil crossed by the magnetic force lines will induce a potential, which by shorting the two ends of the coil starts a current and produces an inverse magnetic field, thus exerting a braking force upon the rotor or, in effect, achieving the end of consuming user energy.
Abstract: In the preferred embodiment, the device comprises a body, a sliding rod mounted to slide inside the body, and a control rod including both compression and expansion end-of-stroke abutments associated with a control piston for displacing the control rod to a position which is retracted or extended relative to the body. The stroke c of the sliding rod is greater than the distance d between the compression end-of-stroke abutment and an immediately adjacent end of the corresponding chamber when the control rod is in an extended position.
Abstract: An adjustable damping force hydraulic shock absorber includes a cylinder, a piston slidably disposed in the cylinder, two partitioned chambers communicating with each through a plurality of passages, a damping force generating mechanism for generating a damping force by controlling a flow of hydraulic fluid through the passages, and a valve for adjusting the damping force by selectively opening and closing one of the passages. The shock absorber is set in a hard mode where a relatively large damping force is generated when the one passage is closed and is set in a soft mode where a relatively small damping force is generated when the one passage is open. The valve includes a valve body axially movable to seat on and to be raised from a valve seat formed in the one passage, a spring for biasing the valve body away from the valve seat, a plunger of magnetic material connected to the valve body at one end thereof, and a solenoid into which the plunger is inserted.
Abstract: A fluid-filled elastic mount including an elastic body which is interposed between radially spaced-apart inner and outer sleeves and which at least partially defines a first pressure-receiving chamber containing a non-compressible fluid. A partition is provided for partially defining at least one second pressure-receiving chamber filled with the fluid. The partition includes a displaceable flexible layer which permits a pressure change in the first pressure-receiving chamber to be transmitted to the second pressure-receiving chamber or chambers. A variable-volume equilibrium chamber filled with the fluid is partially defined by a flexible diaphragm, and communicates with the first pressure-receiving chamber through a first orifice passage, and with each second pressure-receiving chamber through a second orifice passage whose ratio of a transverse cross sectional area to a length is larger than that of the first orifice passage.
Abstract: A vibration damping device is comprised of first and second axially spaced end housings adapted to be mounted on spaced apart structures, and has a tapered intermediate member mounted on the second housing converging toward an open end of the first housing. A piston is mounted on an end of a rod which is connected to the first housing and extends through a bore formed in the intermediate member and forms a restricted flow orifice extending between the spaced apart housings. A pair of elastomeric sleeves extend between the intermediate portion and the piston and the first housing to form a pair of fluid chambers connected by the orifice. An elongated electrode preferably contacts an electrorheological fluid flowing between the chambers through the orifice.
May 30, 1991
Date of Patent:
January 19, 1993
Isao Watanabe, John D. Rensel, David A. Weitzenhof
Abstract: A U-shaped bracket supports an elastomeric bush type vibration damping mount on a power unit (ICE plus transmission). The inner tubular member of the damper is mounted on the arms of the bracket by way of a bolt. First and second tubular piezoelectric/electrostrictive strain generating elements are symmetrically disposed about the bolt and housed within the inner tubular member of the mount. A control unit which is responsive to crank angle and engine speed, produces a AC current and applies the same to the first strain generating element. The phase of the same current is shifted by 90.degree. before being applied to the second strain generating element.
Abstract: A jounce bumper is described as being formed of resilient eleastomeric material. The bumper comprises a cylindrical head protruding from a hollow cylindrical body which terminates at an outstanding annular flange. An annular extension of the body extends from the body in spaced relation around the head to form an annular void around the head. The body extension has a free marginal edge which curves inwardly towards the head and terminates in close proximity to the head to prevent particulate matter from entering the void which is sized to have a volume which is correlated to the displacement of the head when a predetermined load is applied against the head. Voids are placed in the head and body to provide the deflection control characteristics desired. A rigid metal sleeve is encased in the extension of the body to prevent radial displacement of the head beyond filling of the void around the head.
Abstract: A brake assembly is disclosed for selectively preventing rotation of a shaft, such as a shaft used in a control rod drive for a nuclear reactor. The brake assembly includes a stationary base, a rotor disc fixedly connected to the shaft for rotation therewith, and a brake member disposed adjacent to the rotor disc. The rotor disc includes at least one rotor tooth and the brake member includes at least one braking tooth. The member is selectively positionable in a deployed position for allowing the braking tooth to contact the rotor tooth for preventing rotation of the shaft in a first direction while permitting roation in the opposite direction, and in a retracted position for allowing the rotor disc and shaft to rotate in either direction without restraint from the brake member.
Abstract: A shock absorber in which a damping force is to be adjusted separately for the tension and the compression directions in which the shock absorber is equipped with separate throttle valves, one for basic damping and one for supplementary damping. In the device, the adjustable parts of the two throttle valves are embodied in the form of magnetically controllable coaxial sheaths. This results in an especially space-saving design, the sheaths and magnetic coils which can be integrated directly into a piston (5) of the shock absorber. The device is used for damping relative motions of two masses, in particular in resilient wheel suspension systems in vehicles.
February 21, 1991
Date of Patent:
July 14, 1992
Robert Bosch GmbH
Walter Kuehle, Roland Moennings, Udo Neumann
Abstract: A damping force detecting apparatus for detecting a damping force of a variable damping force type shock absorber including a cylinder and a piston slidably inserted thereinto. The damping force detecting apparatus comprises a piezoelectric element assembly for generating a charge corresponding to a pressure applied thereto and a pressurizing device for pressurizing the piezoelectric element assembly. The piezoelectric element assembly has a diameter smaller than a cylindrical piston rod fixedly secured to the piston and is housed therein. The pressurizing device is screwed into the piston rod so as to be in contact relation to the piezoelectric element assembly for pressurizing the piezoelectric element assembly in correspondance with a distortion of the piston rod generated in the sliding directions of the piston with respect to the cylinder due to expanding and contracting action of the shock absorber.
October 23, 1989
Date of Patent:
April 21, 1992
Nippondenso Co., Ltd., Nippon Soken, Inc.
Abstract: A resilient support for a suspension system of the type comprising two frameworks (1) capable of being fastened to two assemblies between which the support is intended to be interposed. The support includes, as the main resilient element intended for supporting a load, at least one resilient tubular member (3), the axis (y) of which extends perpendicularly to the main direction (z) in which the load is exerted. An elastic material (2) is bonded or fixed on either side of the tubular member (3) for fastening the tubular member to a respective framework.
Abstract: A longitudinally controllable adjustment device, in particular a gas spring partially filled with a fluid, has a piston disposed on a piston rod and a valve, inside of which a valve body is slidable in its longitudinal direction. It has a tapered section by which a seal, abutting on a sealing face, can be bridged. In order to make possible a long-stroke embodiment and a short-stroke embodiment, the seal has two sealing beads, of which the one sealing bead sealingly abuts in all embodiments against a truncated cone-like sealing face of the valve body, while the other sealing bead, if required, abuts on an optionally provided additional cylindrical sealing face between the truncated cone-like sealing face and the tapered section.
Abstract: A bumper rubber is disclosed and includes: a bumper rubber body being elastically deformable and having a substantially cylindrical shape, wherein the bumper rubber body is inserted into a rod extending from a top end portion of a cylinder of a shock absorber, a top end surface thereof is brought into contact with a bottom end portion of a suspension insulator disposed on a vehicle body, and a bottom end surface thereof is brought into contact with a top end portion of the cylinder, thereby being elastically deformed and absorbing the excessive displacements of the shock absorber; and a rigid ring integrally insert-molded on an outer periphery surface of the bumper rubber body and having an engagement groove on an exposed outer periphery surface thereof to be engaged with a dust cover, and the engagement groove going round on the exposed outer periphery surface of the rigid ring in a ring-like shape.
Abstract: The shock absorber is mounted on a vehicle chassis. It comprises an outer guiding housing and a supporting member movable axially and rotatable relative to it. A hydraulic chamber is located between the guiding housing and the supporting member. This hydraulic chamber is formed by a hydraulic cylinder in this supporting member and is closed by a piston connected axially and nonrotatably with the guiding housing. The hydraulic cylinder may comprise the supporting member alone or may be a separate unit within the supporting member.
Abstract: Elastic anti-vibration isolation apparatus with integrated hydraulic damping, consisting of a thick conical membrane of elastomer compound bonded to internal and external rigid frames, and crimped in a casing containing a damping liquid, characterized by the fact that the rigid partition which separates the variable volume chamber from the expansion space has a passage for the damping liquid realized in one or two parts, the dimensions of which can be adjusted by grinding or lathe-working at least one of the components, base or cover, of the rigid partition, or by the insertion of shims between the constituent parts, thereby making it possible, using a set of similar components, to realize a range of elastic mountings with damping characteristics adapted to desired utilization frequencies.
Abstract: An improved torque lug drive for a multidisc brake and wheel assembly having greater resistance to torque loading than earlier designs at lower weight. The torque transmitting beam is mechanically secured to the radially inner surface of the wheel rim adjacent the wheel rim flange, for example, by a threaded fastener. A shear pin transmits torque load from the torque beam to a boss provided on the radially inner surface of the rim at a point between the wheel rim flange and the web of the wheel.
Abstract: The invention relates to an automatically adjustable spacer for a drum brake, comprising essentially a first part (10) bearing at one of its ends on a first shoe (3), a second part (16) bearing at the opposite end on the second shoe (2), the first and second parts (10, 16) being mounted slidably longitudinally relative to one another, a locking element (30), at least part of the periphery of which has a toothing, mounted movably on one of the first and second parts and capable of meshing with a corresponding toothing (28) provided opposite it on part of the periphery of the other of the first and second parts, so as to define a device for the automatic extension of the spacer as a function of the wear of the friction elements.