Suspension arrangement for a tilting chair
Номер патента: CA1184108A
Опубликовано: 19-03-1985
Автор(ы): David W. Smith
Принадлежит: SIMO DOW MANUFACTURING LTD.
Опубликовано: 19-03-1985
Автор(ы): David W. Smith
Принадлежит: SIMO DOW MANUFACTURING LTD.
Реферат: SUSPENSION ARRANGEMENT FOR A TILTING CHAIR ABSTRACT OF THE DISCLOSURE A suspension arrangement for a chair of the type wherein a back and seat of the chair pivot con-jointly but two different angles comprises a pair of main helical torsion springs spaced axially and support-ing the back support relative to a main frame so that the back support can pivot about the axes of the springs. The seat is attached to the main frame by a forward pair of helical springs and to the back support by a rearward pair of helical springs so that the seat pivots about the front pair under control of the rear pair with the ratio of the angles controlled by the distance between the axes.
Tension adjustment mechanism for a chair
Номер патента: CA2600002C. Автор: Richard N. Roslund,Matthew Rutman. Владелец: Haworth Inc. Дата публикации: 2014-02-18.