Screw-adjusted chair foot fixed to main chair leg
Реферат: The chair leg foot (2) is made of metal, plastics, wood etc and the angle of the chair back and seat can be adjusted by a height-adjustable and arrestable screw (4), using the threaded top end of the foot to screw into the threaded sleeve (2) of the chair leg, the leg assisted by a number of locknuts. A steel spring within the leg housing (5) is fixed to the bottom part of the leg foot which in turn can move within the housing (5). An assembly surface on the top of the thread enables the leg foot to be fitted with light woods etc which do not accept threaded sleeves. A gas spring can be used instead of the steel spring. Once the foot part of the leg has been screwed into the main leg it is adjusted to user etc height and then arrested by the locknut (4), using the enclosed steel spring or gas spring to cushion the seating and standing motions of the user.
Chair Leg Mountable Coaster Assembly
Номер патента: US20210196045A1. Автор: Michael Putzke. Владелец: Individual. Дата публикации: 2021-07-01.