F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
F16F 9/44 (2006.01) A47C 1/022 (2006.01) A47C 1/024 (2006.01) A47C 3/30 (2006.01) A47C 7/34 (2006.01) B60N 2/23 (2006.01) F16F 9/02 (2006.01)
Patent
CA 2484249
A compression spring comprises a casing in which a piston is arranged for displacement, the piston being mounted on a piston rod. In the casing provision is made for two sectional casing chambers which are filled with pressure fluid, at least one of which being defined by the piston. A first operating valve, in an open position, connects the sectional casing chambers to each other and, in a shut-off position, blocks the compression spring. An additional throttle element ensures that an actuation and overflow assembly between the sectional casing chambers is completely open only when the throttle element, with the valve pin tripped, is simultaneously moved by corresponding actuation into a position of release. Without any such actuation of the throttle element, there will be only throttled flow between the sectional casing chambers. Any inadvertent extension of the piston rod is thus precluded. This is an especially convenient and intuitive way of backrest adjustment in a seat.
Boehm Walter
Knapp Rainer
Knaust Holger
Marks & Clerk
Suspa Holding Gmbh
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