Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously
Patent
1986-07-25
1987-11-17
McCall, James T.
Chairs and seats
Back movement resiliently opposed in operating position
Back and seat adjust simultaneously
267177, 297301, A47C 300
Patent
active
047070293
ABSTRACT:
An apparatus for supporting a part of a piece of furniture on another part of the piece of furniture, especially of a backrest support of a desk chair on its lower support, has a spring. The preset spring bias can be adjusted by an adjustment member. A bent link tube has one end which is arranged at the spring and another end supporting the adjustment member for adjusting the spring from a point the spring longitudinal axis. A force transmission member is moved by the adjustment member and is guided in the link tube to work effectively on the spring. A mechanism is also mounted in the link tube for controlling the force exerted from adjustment member on the transmission member.
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McCall James T.
Roder GmbH Sitzmobelworke
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