Patent ID: 6209154
Filing Date: 2001-04-03
Classification: A47C

Abstract:
A multiple-stage positioner for a piece of furniture, comprising:a stationary first part having front and rear ends;a second part connected pivotally to said rear end for turning relative to said stationary first part;a holding pin projecting from said first part in a direction substantially parallel to axis of rotation of said second part;an elongated positioning piece disposed below said first and second parts and having front and rear ends, and a lower edge extending forwardly from said rear end of said positioning piece across said holding pin to said front end of said positioning piece, said lower edge having a plurality of aligned and spaced apart first grooves, said rear end of said positioning piece being connected movably to said second part, said positioning piece being capable of moving forward and downward, or rearward and upward upon turning movement of said second part, said first grooves moving past said holding pin when said positioning piece moves rearward and upward, said first grooves engaging said holding pin and locking said positioning piece against forward movement;a spring mounted on said second part adjacent to said rear end of said positioning piece to urge said positioning piece against said holding pin; anda guiding piece mounted slidably and longitudinally on said positioning piece, said guiding piece having a bottom edge substantially flush with said lower edge of said positioning piece, said bottom edge having a plurality of aligned and spaced apart second grooves, and groove-free parts between adjacent ones of said second grooves, said guiding piece being slidable relative to said positioning piece between a first position, in which said second grooves are aligned respectively with said first grooves to receive said holding pin, when said positioning piece moves rearward and upward, and a second position, in which said groove-free parts are aligned respectively with said first grooves to prevent said holding pin from entering into said first grooves and to avoid said positioning piece from being locked against forward movement when said positioning piece moves forward and downward.