Damper
AssigneeDruck- und Spritzgusswerk Hettich GmbH & Co. KG
InventorKonrad Weber
Life of this patent
Estimating the term…
Abstract
A damper for fittings for furniture or household appliances has a housing in which a piston connected to a piston rod is guided in a linearly displaceable manner, the piston dividing an interior space in the housing into two chambers, wherein at least one flow channel is formed on or in the piston, which flow channel connects the two chambers to one another, wherein a throttle element is provided, which, in a damping position, keeps the cross-section of the at least one flow channel small when the piston moves in a first direction in order to generate high damping forces, and when the piston moves in the second direction opposite to the first direction, increases the cross-section of the at least one flow channel for reducing the damping forces by a movement of the throttle element.
Claims12
A damper (1) for fittings for furniture or domestic appliances, comprising a housing (2) in which a piston which is connected to a piston rod (3) is guided in a linearly displaceable manner and divides an interior space (20) in the housing (2) into two chambers, wherein at least one flow channel (9) which connects the two chambers to one another is formed on or in the piston, wherein a throttle element (6) in the form of a piston ring is provided, which, in a damping position, reduces the cross-section of the at least one flow channel (9) when the piston moves in a first direction in order to generate increased damping forces, and when the piston moves in the second second direction opposite to the first direction, increases the cross-section of the at least one flow channel (9) for reducing the damping forces by a movement of the throttle element (6), wherein the throttle element (6) is pretensioned into the damping position by at least one spring element (72) and the piston (3) is pretensioned via a spring (8) into a position with extended piston rod (3), wherein the throttle element (6) is fixed in a clamping manner between a holder (30) connected to the piston rod (3) and the at least one spring element (72), wherein the at least one spring element (72) is integrally formed with a fixing element (7) fixed to the piston rod (3), and wherein the throttle element (6) is pretensioned by means of the at least one spring element (72) against the holder (30).
Dependencies are inferred from the claim text.