A seat, particularly a rocking chair, includes a frame, a seat surface and a backrest. The frame includes two lower frame parts extending forward from the backrest and each having a curved progression which is convex in downward direction. The seat can have with stop members arranged close to a front outer end and/or close to a rear outer end of each lower frame part. The stop members can be resiliently deformable. Additionally or alternatively the lower frame parts can each be covered on an underside thereof with a resilient and/or damping material. This resilient and/or damping material can comprise a shaped part connected to the relevant frame part. The stop members can be integrated in the shaped part. A stop member and a shaped part intended for application in such a seat.

A damping air spring for heavy-duty vehicle axle/suspension systems. The damping air spring includes a first chamber and a second chamber and at least one opening between the first chamber and second chamber to provide restricted fluid communication between the first chamber and the second chamber. An adsorptive material is disposed within the first chamber or the second chamber and works in conjunction with the at least one opening to provide damping characteristics to the air spring over a first and second critical range of frequencies.

A shock absorber includes a gas spring cylinder containing a piston moveable between an extended position and a compressed position within the gas spring cylinder. A mechanical actuator is arranged whereby a bleed port is automatically closed when the gas spring is compressed to a predetermined position corresponding to a desired sag setting. In one embodiment, the position corresponds to a predetermined sag setting whereby the gas spring is partially compressed. In another embodiment, a proper sag setting is determined through the use of a processor and sensor that in one instance measure a position of shock absorber components to dictate a proper sag setting and in another instance calculate a pressure corresponding to a preferred sag setting.

There is provided an air spring for supporting a load, the air spring comprises a chamber for holding a pressurized gas in use, a load-bearing surface arranged to transmit a force from a load in use to the pressurized gas held in the chamber. Importantly, in order to lower the spring rate, the chamber contains a mass of adsorptive material. There is also provided a use of an adsorptive material for the purpose of lowering the spring rate of an air spring, including a gas strut and a pneumatic wheel. There is also provided a method of designing an air spring using an adsorptive material to lower the spring rate.

The invention relates to a method and an apparatus for receiving cylindrical bodies. In the method according to the invention, the receiving utilizes tight, self-restoring pressure elements, in which by adjusting the inflow and/or outflow of compressed air, the motion speed of the cylindrical body is decelerated. The apparatus according to the invention includes a pressure element within the elastic and tight material of which is installed self-restoring porous material. Furthermore, the invention relates to the use of the method and the apparatus for receiving a cylindrical body.

A damper (10) includes a housing (11) and a rotor (16) combined with the housing (11) so as to be capable of rotating relative to the housing (11). The damper (10) includes an attenuating medium (90) filled in a rotation area inside the housing (11) wherein the rotor (16) rotates, and added with viscoelasticity by a viscoelasticity treatment; and an enclosure portion (80) provided outside the rotation area of the rotor (16), and communicating with the rotation area.

Embodiments of the invention relate generally to excavating equipment and, more particularly, to a damping element for excavator shovel buckets that improves the protection of its components.

Provided is an angular beam connecting apparatus. Angular beams are various types of angular beams with at least one groove that includes inner walls formed on both sides of the groove. The connecting apparatus assembled in the at least one groove of the respective angular beams includes: an upper member having at least one first pressing hole formed therein and at least one first inclined surface formed therein; a lower member a second pressing hole formed therein in correspondence to the first pressing hole and a second inclined surface formed therein while facing the first inclined surface; pressure units that are screwed through the first and second pressing holes of the upper and lower members; at least one pressure rod located in the space “a” formed between the first and second inclined surfaces by placing the first and second inclined surfaces of the upper and lower members to face each other, wherein the pressure units of the connecting member penetrate the first and second pressing holes to have the upper and lower members closely contact each other, and the at least one pressure rod located in the space “a” between the first and second inclined surfaces is pushed outward to fix two angular beams and to extend the length of the structure formed by the two angular beams.

A damping air spring for heavy-duty vehicle axle/suspension systems. The damping air spring includes a first chamber and a second chamber and at least one opening between the first chamber and second chamber to provide restricted fluid communication between the first chamber and the second chamber. An adsorptive material is disposed within the first chamber or the second chamber and works in conjunction with the at least one opening to provide damping characteristics to the air spring over a first and second critical range of frequencies.

A seat, particularly a rocking chair, includes a frame, a seat surface and a backrest. The frame includes two lower frame parts extending forward from the backrest and each having a curved progression which is convex in downward direction. The seat can have with stop members arranged close to a front outer end and/or close to a rear outer end of each lower frame part. The stop members can be resiliently deformable. Additionally or alternatively the lower frame parts can each be covered on an underside thereof with a resilient and/or damping material. This resilient and/or damping material can comprise a shaped part connected to the relevant frame part. The stop members can be integrated in the shaped part. A stop member and a shaped part intended for application in such a seat.