Abstract: An elastic motor mount having a closed-off hollow space which is formed within a housing. With the aid of a regulatable pressure pump, the hollow space can selectively be filled with a damping fluid from a tank disposed externally of the mounting. It is therefore possible to randomly affect the stiffness of the shock absorption and the damping properties, and to efficiently reduce undesirable vibrations which might occur without permanently adversely affecting the acoustical property.

Abstract: A hydraulic engine mount comprising two fluid-filled chambers normally communicating with each other to affect a controlled throttled exchange of fluid between them sufficient to absorb relative movements of high frequency low amplitude between an engine and a chassis. Relative movements of high amplitude and low frequency may be absorbed by rendering the mount soft by opening a bypass to provide for a substantially unimpeded flow of fluid between the chambers. Preferably, the bypass is provided with valve means controlled by sensors reacting to parameters representing engine performance or the like.

Abstract: An improved power unit mounting device capable of dumping in a wide range of frequency of vibration. The device having an inner liquid chamber comprises an auxiliary chamber provided on a chassis separately from the mounting device proper. The mounting device proper is formed with the inner chamber communicating with the auxiliary chamber through a plurality of fluid channels.

Abstract: A suspension for a vehicle includes a shock absorber provided with a tube, a piston partitioning the interior of the tube into two liquid chambers and a piston rod connected to the piston having a bypass path for affording communication between the two liquid chambers, a control shaft disposed in the piston rod of the shock absorber to open and close the bypass path, a support interposed between the piston rod and a car body and provided with a valve base connected to the piston rod, having a hole in which a valve body is disposed and a bushing disposed radially outward of the valve base, having two fluid chambers, the valve body disposed in the hole of the valve base to afford and interrupt communication between the two fluid chambers of the bushing and an actuator for operating the control shaft and the valve body.

Abstract: A bracket is mounted to a motor face plate with the bracket having all of its wall surfaces in abutment with elongate resilient cushion members. Reaction of the motor housing to motor output shaft torque loads is cushioned by the resilient members which are non-uniformly compressed by the motor face plate bracket. A wall structure with right angular wall components carries the yieldably supported face plate bracket and cushion members.

Abstract: A mounting structure disposed between a body and a power unit of a vehicle, including a cylindrical housing having two cavities on opposite side of a partition member, and a first and a second elastic member which close open ends of the cavities to form a first and a second variable-volume fluid chamber which are filled with an incompressible fluid. The first and second fluid chambers communicate with each other through an orifice which permits a restricted flow of the fluid therethrough. The elastic members and the orifice enable the mounting structure to damp or absorb vibrations applied thereto.

Abstract: A reaction base for supporting a mechanical vibrator used to shake test components, the base having parallel spaced beams clamped between top and bottom plates. End plates enclose the spaces between the beams, the spaces being filled with dry particulate matter. Inflatable bladders in each space are inflated after assembly of the base to compress the particulate matter against the confining surfaces of the beams, end plates, and top and bottom plates.

Abstract: An engine-transmission assembly is supported in an engine room of a vehicle by two elastic support devices supporting it substantially at opposite ends of its rolling axis of inertia and two other elastic support devices supporting it substantially at opposite ends of its pitching axis of inertia. The major part of the weight of the engine-transmission assembly may be borne by the two elastic support devices on the rolling axis of inertia, which may be simple rubber block type support devices; and the two elastic support devices on the pitching axis of inertia may be of a type able to present variable spring constant and/or damping coefficient, optionally according to the driving conditions of the vehicle.

Abstract: A first speed detecting means detects whether the engine speed has fallen below a prescribed level. A second speed detecting means detects whether an accelerator pedal angle has been changed at a speed higher than a predetermined value. A third speed detecting means is provided to detect whether the speed of the automobile is equal to, or higher than, a predetermined value. Upon receipt of the output signals from the first, second and third speed detecting means, a solenoid drive circuit drives engine vibration absorbers for a predetermined period of time. More specifically, the circuit energizes solenoids for this period. The solenoids rotate the thus rotary valves of the absorbers, thus closing the orifices of the absorbers. As a result, the absorbers generate great forces damping the back-and-forth motion of the engine. The vibrations of the engine are therefore not transmitted to the chassis of the automobile.

Abstract: A suspension system provides a motion damping mounting for carrying a record playback machine comprising a plurality of damping ring assemblies, each having an elastic ring for fastening between a machine and a support, the rings being flattened when secured such that opposite segments of each ring extend substantially straight and parallel such that a component of stress applied to the machine in the direction of the straight segments produces limited rolling movement of a flattened ring, which damps motion of the playback machine in the direction of the straight segments of the flattened ring, the flattened ring also damping motion of the machine vertically and laterally relative to the direction of the straight segments. According to this invention, the damping assembly includes a ring and mounting plates or clips and fasteners for securing the ring to the machine or the support.

Abstract: An elastic support unit has a supporting element including an elastic part and a sliding part arranged so that under the action of load, first the elastic part is elastically deformed and the supporting element acts within a first elastic region, then the sliding part allows the supporting element to slide over a slide path and the supporting element acts within a second sliding region, and thereafter upon passing the sliding region the supporting element uses its stress reserves and after exceeding the stress reserves uses plastic deformation of the elastic part, so as to form thereafter an elastic stop and thereby act in a third additional region.

Abstract: When detecting means detects that changes have been achieved by an automatic transmission in lever position and/or gear position, a solenoid drive circuit is actuated for a predetermined period of time to drive shock absorbers which control the rolling of the engine of an automobile. More specifically, when it is actuated, the solenoid drive circuit energizes solenoids, whereby the rotary valves of the shock absorbers are rotated for said period. As a result, one of the two orifices of either shock absorber is closed, thus increasing the force damping the vibrations of the engine. Hence, the vibrations caused by a large torque of the engine are not transmitted to the chassis of the automobile.

Abstract: In an exhaust system of an internal combustion engine installed on an automotive vehicle having a body structure wherein the exhaust system includes exhaust-system component units such as an exhaust pipe and an exhaust-cleaning catalytic converter, an exhaust unit support device for having the exhaust-system component units mounted on the vehicle body structure, comprising a first coupling member securely mounted on at least one of the exhaust-system component units, a second coupling member securely attached to the body structure, an elastic support member having a portion securely attached to the first coupling member and a portion securely attached to the second coupling member, and a vibration-damping block having a portion connected to the second coupling member and a portion connected to the vehicle body structure.

Abstract: A system for resiliently supporting a load at a reference height includes a hydraulic cylinder for resiliently supporting a load about a reference height and an accumulator which cooperates with the cylinder for flowing hydraulic fluid therebetween in response to varying loads imposed on the cylinder. A valve is provided for dampening the rate of fluid flowing between the cylinder and the accumulator and a metering valve coacts with the cylinder for adjusting the reference height about which the load is supported.

Abstract: In a mechanism or support for a television or movie camera which allows the camera to be tilted or pitched upwardly and downwardly, the weight of torque offered by the camera is counterbalanced by means of a series of accumulators or spring elements placed between the rotatable support for the camera and the stator portion of the support and adapted to be selectively engaged between the rotor and stator, depending upon the weight of the camera being used. Preferably each accumulator offers a restoring torque that is different from that of the other accumulators such that by selective engagement of various combinations of accumulators many different weights of cameras can be accommodated.

Abstract: A gas spring for height adjustment of drawing-tables or the like includes an arrangement for hydraulically locking the gas spring against sudden collapse due to overloading or loss of internal gas pressure. The hydraulic locking mechanism includes a pressure responsive valve which operates, in response to an excess pressure differential between the gas spring cavity and the pressurized gas chamber, either to prevent flow of the hydraulic locking medium out of the cylinder cavity or to restrict such flow to a slow, safe rate.

Abstract: A seat secured to a permanent floor by a seat stabilizer which provides increased comfort by absorbing the static shock and/or vibration created between the permanent structure and the seat cushion. The seat stabilizer comprises a plurality of steel bolts firmly supported in the permanent floor structure, each bolt being enclosed by a coil spring contacting the permanent floor structure and the seat cushion frame positioned around each bolt, thereby causing the seat cushion to float vertically along the bolt in response to sudden shocks or vibrations. A bushing mounted on the portion of each seat frame contacting the stabilizing bolts prevents wear due to the vertical movement of the floating seat cushion frame. The stabilizing bolts and associated spring are enclosed by an elastic boot thereby eliminating dust particles and the corrosive effects of the environment.

Abstract: A vibration adjustable spacer (10) is disclosed. In a preferred implementation spacers 10, 10', 10" are used to damp the vibrational resonance of a number of printed circuit boards (42, 44, 46) in an assembly (40). The spacer (10) has an adjustable snubbing means (30) which extends to abut an essentially stationary surface (7) when the board is accelerated in one direction and a pivotable means (22) operating such that retraction of the snubbing means is impeded when the board is accelerated in the opposite direction.

Abstract: An elastic support for a horizontally rotating washing machine or the like in which two spring support strut assemblies are disposed substantially in the middle of the machine and to either side of a vertical plane which includes the axis of rotation. Each of the spring strut assemblies is double-acting, i.e., it has an upper guide rod and a lower guide rod, each of which is surrounded by a compression spring. The top of the upper guide rod is attached to the washing machine housing and the bottom of the lower guide rod is attached to the base of the machine. The free ends of the guide rods move axially within a single guiding and damping casing which has internal passages for guiding the rods.

Abstract: An energy absorbing motor mount assembly is disclosed in which a mounting element, including an arm having an enlarged head portion, is mounted for reciprocation in fore and aft directions inside a containment housing. Resiliently displaceable energy absorbing means are positioned on either side of the head portion to resist displacement in either the fore or aft direction. The head is dimensioned to prevent removal from the containment housing and is surrounded by a rubber-like member, which resiliently resists displacement in combination with compression springs. The rubber member also resists displacement in directions transversed to the permitted fore and aft displacment. The resilient spring force applied to the head of the mounting element can be adjusted to vary the energy absorption characteristics of the motor mount assembly.