A method and apparatus for a vehicle suspension system gas spring. In one embodiment, a vehicle suspension system gas spring includes a compressible main gas chamber and an additional volume combinable with the main chamber to change a gas spring rate of the system. In one embodiment, a low friction piston seal is created by a flexible seal member.

A base isolation unit includes a vibration-source connector to be connected with a structure subjected to seismic vibration, an isolated-object connector to be connected with an object to be isolated from vibration, and located at a predetermined distance from the vibration-source connector in a predetermined base isolation direction, and a movement regulator. The movement regulator is located between the vibration-source connector and the isolated-object connector and includes an elastic body applied with a preload and subjected to a pressure caused by an external force in the base isolation direction. The movement regulator keeps the distance unchanged when the external force is equal to or less the preload, and changes the distance by making the vibration-source connector movable when the external force exceeds the preload. The base isolation unit is usable repeatedly and in environments without electricity, and achieving isolation from seismic vibration while keeping stiffness in conditions other than earthquakes.

A base isolation unit includes a vibration-source connector to be connected with a structure subjected to seismic vibration, an isolated-object connector to be connected with an object to be isolated from vibration, and located at a predetermined distance from the vibration-source connector in a predetermined base isolation direction, and a movement regulator. The movement regulator is located between the vibration-source connector and the isolated-object connector and includes an elastic body applied with a preload and subjected to a pressure caused by an external force in the base isolation direction. The movement regulator keeps the distance unchanged when the external force is equal to or less the preload, and changes the distance by making the vibration-source connector movable when the external force exceeds the preload. The base isolation unit is usable repeatedly and in environments without electricity, and achieving isolation from seismic vibration while keeping stiffness in conditions other than earthquakes.

A hydraulic body mount includes a first support member adapted to engage a body of a vehicle and a second support member adapted to engage the frame of the vehicle. The second support member includes a cup portion disposed radially inward of the second support surface that extends axially away from both the first support surface and the second support surface. The body mount further includes a hydraulic damping system disposed between the first support surface and the second support surface, a washer and a travel-limiting cup joined to the cup portion of the second support member. The travel-limiting cup surrounds the washer and includes a compressible limiting member that limits axial movement of the inner tube when the washer contacts the compressible limiting member.

The present invention relates to the field of transport mechanical engineering.

Objectimprove performance and operational reliability of a friction shock absorber.

It (FIG. 2) comprises housing (1) with internal protuberances, base (3), and orifice (6), wherein friction assembly (7) is situated that consists of pressure wedge (8) and stay wedges (9) contacting therewith, which wedges are in contact with guide plates (10) and movable plates (11) contacting therewith. The movable plates and stay wedges are in contact with pressure plate (12), between whereof and the base return-and-retaining device (14) is located contacting the carrying edge with its peak (15).

Part (A) of the return-and-retaining device is situated between the guide plates resting against the housing's internal protuberances fitted out with recesses (21) that may run along the entire width of the guide plates.

Width (B) of its Part (A) located between the recesses is bigger than the shortest distance (C) between the guide plates. The guide plates are located closer to the housing base than the pressure plate's carrying end contacting the peak of the return-and-retaining device.

A damper unit for an elevator for reducing vertical vibrations of an elevator car of the elevator during a standstill includes a stamp-like acting element that acts on an end-face guide surface of a guide rail. The acting element is spaced from the guide rail in an idle position and can be connected slip-free to the guide rail by an eccentric drive in an active position. Force transmitting elements containing a shock damper for damping the motions of the elevator car during a standstill of the car adjoin the acting element.

The present invention relates to a front fork assembly and to a front fork comprising the same. The present invention further relates to a motorcycle that is provided with such a front fork assembly or front fork. According to the invention, the front fork assembly (100; 200; 300; 400; 500; 600) comprises a tuned mass damper (150) that is fixedly attached to the unsprung section (103, 104) of the telescopic unit.

A lightweight and high-elastic vibration absorption assembly for a bike saddle includes a pair of vibration-absorption blocks mounted to a bottom of a saddle. The vibration-absorption blocks are each formed with a central hole extending in a vertical direction between a top surface and a bottom surface thereof. A fastening member is received through a through hole of a support base and a central hole of each of the vibration-absorption blocks to be fixed to an underside positioning hole of the saddle. The vibration-absorption blocks are each formed of a plurality of foamed units that are bonded to each other with a bonding portion therebetween. Each of the foamed units includes a plurality of foaming pores formed therein. The vibration-absorption blocks are permitted to be temporarily deformed when receiving a pressing force acting on the saddle so that the pressing force is absorbed by the vibration-absorption blocks.

A spring mount assembly for a vibrating screen, the spring mount assembly having a helical spring; a top helical spring support disposed on the top end of the helical spring for supporting the top end of the helical spring; a bottom helical spring support disposed on the bottom end of the helical spring for supporting the bottom end of the helical spring; a stationary base support; a removable base support disposed on top of the stationary base support between the stationary base support and the bottom helical spring support; a hydraulic cylinder; side supports attached to the stationary base support; and removable posts affixed to the side supports and the top helical spring support. Also provided is a system, and a method, for removing the helical spring, the system having a hydraulic jacking arrangement for creating a gap between the bottom helical spring support and the removable base support.

A force transfer system includes a body and an article. The article includes a first portion forming a first lateral axis and a second portion forming a second lateral axis, the axes being offset. An intermediate member is disposed between the first portion and the second portion, and holds the second portion to the first portion. A stimulus received by the first portion causes a temporary alteration of the intermediate member from an initial condition, the alteration of the intermediate member thereby causing a change in a characteristic of the second portion. The intermediate member subsequently returns to the initial condition, thereby causing a change in a characteristic of the first portion, which is influenced by the change in the characteristic of the second portion. The change in the characteristic of the first and second portions prevents at least a portion of the stimulus from reaching the body.