A hinge comprising: a first hinge member (110) comprising a cylinder barrel (117) having a longitudinal direction (118); a second hinge member (111) pivotably mounted on the first hinge member (110); and a dashpot interposed between said hinge members (110, 111) and configured for damping a closing movement of said closure member. The dashpot comprises a closed cylinder cavity formed within the cylinder barrel (117); a damper shaft (124) which extends into the cylinder cavity and is connected to the second hinge member (111); and a piston (147) within said cylinder cavity. The hinge members (110, 111) are made of a synthetic material and the damper shaft (124) is made of metal.

A hinge comprising: a first hinge member (110) comprising a cylinder barrel (117) having a longitudinal direction (118); a second hinge member (111) pivotably mounted on the first hinge member (110); and a dashpot interposed between said hinge members (110, 111) and configured for damping a closing movement of said closure member. The dashpot comprises a closed cylinder cavity formed within the cylinder barrel (117); a damper shaft (124) which extends into the cylinder cavity and is connected to the second hinge member (111); and a piston (147) within said cylinder cavity. The hinge members (110, 111) are made of a synthetic material and the damper shaft (124) is made of metal.

A dashpot comprising: a closed cylinder cavity and a damper shaft (24) which are rotatable with respect to one another; a piston (47) which is slideable between two extreme positions; and a motion converting mechanism to convert the relative rotation between the cylinder barrel (17) and the damper shaft (24) into a sliding motion of the piston (47). The motion converting mechanism comprises two co-operating screw threads, one (58) being provided on an outer wall of the piston (47) and the other one being provided on an inner wall of the cylinder barrel (17) or on an inner wall of a plastic tubular element fixed to the cylinder barrel. By providing the screw thread (58) on the outside of the piston (47), the diameter of the screw thread (58) is increased thereby increasing its lead and thus causing a higher volume of hydraulic fluid to be displaced during operation of the dashpot.

A hydraulically damped actuator closes a hinged closure system. The actuator includes an energy storing mechanism that stores energy when the closure system is being opened and restores the energy to effect closure of the closure system. A hydraulic damping mechanism damps the closing movement of the closure system. The actuator further includes a tubular cylinder barrel with first and a second ends and a rotatable shaft with first and a second extremities. The shaft extends through the tubular cylinder barrel. Both extremities of the shaft are available to be connected with a mechanical connector that transfers rotation of the closure system to the shaft, which allows the actuator to be mounted in two opposing orientations depending on the handedness of the closure system.

A hinge includes a leaf unit, first and second action units and an axle unit. The leaf unit includes first and second leaves that are rotatable relative to each other. The first leaf has a first barrel. The second leaf has a second barrel. The first and second action units are co-rotatable with the first leaf. The axle unit includes a fixing member mounted in the second barrel and co-rotatable with the second leaf, and first and second axle constituents respectively associated with the first and second action units and co-rotatable with the fixing member.

A hinge includes a leaf unit, first and second action units and an axle unit. The leaf unit includes first and second leaves that are rotatable relative to each other. The first leaf has a first barrel. The second leaf has a second barrel. The first and second action units are co-rotatable with the first leaf. The axle unit includes a fixing member mounted in the second barrel and co-rotatable with the second leaf, and first and second axle constituents respectively associated with the first and second action units and co-rotatable with the fixing member.

A damper device includes an outer cylinder, an inner cylinder disposed inside the outer cylinder and having an inner chamber, a lower open end, and an upper closed end wall with a vent hole, a piston disposed in the inner chamber and having a passageway, a check valve coupled to the passageway to permit only upward flowing of a working fluid in the inner chamber through the passageway, and a piston rod having a lower rod end disposed outwardly of the outer cylinder, and an upper rod mounted to permit the piston to slide with the piston rod. The sliding of the piston rod is dampened by sliding of the piston in the inner chamber. A hinge assembly including the damper device is also disclosed.

A damper device includes an outer cylinder, an inner cylinder disposed inside the outer cylinder and having an inner chamber, a lower open end, and an upper closed end wall with a vent hole, a piston disposed in the inner chamber and having a passageway, a check valve coupled to the passageway to permit only upward flowing of a working fluid in the inner chamber through the passageway, and a piston rod having a lower rod end disposed outwardly of the outer cylinder, and an upper rod mounted to permit the piston to slide with the piston rod. The sliding of the piston rod is dampened by sliding of the piston in the inner chamber. A hinge assembly including the damper device is also disclosed.

A damper assembly (100) is configured to dampen motion between a first component and a second component. The damper assembly (100) includes a housing (102) having at least one housing rotation-limiting protuberance (126). A rotor (104) is rotatably coupled to the housing (102). The rotor (104) includes at least one rotor rotation-limiting protuberance (160). The housing rotation-limiting protuberance(s) (126) and the rotor rotation-limiting protuberance(s) (160) cooperate to limit a range of rotation of the rotor (104) relative to the housing (102).

In a hinge device comprising a first member attached to a main body, a second member attachable to a door and rotatable about a vertical rotation axis with respect to the first member, a cam provided in the first member, and a linear damper provided in the second member and actuatable by the cam, the linear damper is disposed below the lower surface of the door.