FIELD: satisfaction of human vital requirements.
SUBSTANCE: invention relates to the mechanism of backrest angle adjustment. Mechanism is located on the seat lateral side. Mechanism bearing housing is rigidly connected to the seat base. On the seat base the mechanism elements axes are located. Mechanism consists of: the teeth arc, locking bar and the locking bar pusher, which are hinged on the seat base. Teeth arc is located on the seat backrest element. On the locking bar the teeth counter arc is located. Pusher is located inside the locking bar hole. Pusher is made in the form of the circular eccentric. Hole in the locking bar has a round shape, the same diameter as the eccentric. With the eccentric rotation, the locking bar teeth and the seat backrest element teeth engagement or disengagement takes place.
EFFECT: enabling increase in the reliability of the seat backrest fixation relative to its base.
1 cl, 3 dwg
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