Chair including a chair back adjustment mechanism
Номер патента: GB1507348A
Опубликовано: 12-04-1978
Автор(ы):
Принадлежит: Westinghouse Electric Corp
Опубликовано: 12-04-1978
Автор(ы):
Принадлежит: Westinghouse Electric Corp
Реферат: 1507348 Vertically adjustable backrest WESTINGHOUSE ELECTRIC CORP 14 May 1975 [28 May 1974] 20306/75 Heading A4J A vertically adjustable backrest is fixed to a first C-shaped bracket 46 moveable relative to a second C-shaped bracket 36 on rotation of a partially threaded stud 52 passing through aligned apertures in the two brackets and threadingly engaging one of the apertures in the second bracket. The second bracket is fixed to a support member 32 connected to the arm (26) Fig. 1 (not shown) of the chair. The brackets are covered by a plastics material shell (68) provided with an aperture which allows access to the stud.
Chair back with height and lumbar adjustment
Номер патента: US09596941B1. Автор: Francisco Romero. Владелец: Office Master Inc. Дата публикации: 2017-03-21.