Adjusting Assembly Adopted for A Seat of A Chair

Abstract

An adjusting assembly adopted for a seat of a chair comprises a support plate including a plurality of slots formed at four corners thereof respectively; two positioning members mounted on two sides of the top panel of the legs and each including a number of recesses arranged on one side thereof; two spacing members coupled with the positioning members and each including a plurality of guiding ribs fixed thereon; a plurality of engaging members, each including an actuating member fitted thereon, retained in a notch of the support plate and covered by a housing member, the engaging member further including at least one resilient element fitted on one side thereof, the actuating member including an extension disposed on end thereof, and one end of the actuating member which extends out of the housing member being limited in the support plate by ways of a locking member.

1 . An adjusting assembly adopted for a seat of a chair being connected with a seat and disposed on a top panel of a plurality of legs of the chair, characterized in that the adjusting assembly comprises:
 a support plate including a plurality of slots formed at four corners thereof respectively;   two positioning members mounted on two sides of the top panel of the legs and each including a number of recesses arranged on one side thereof;   two spacing members coupled with the positioning members and each including a plurality of guiding ribs fixed thereon;   the positioning members and the spacing members being axially connected to the slots of the support plate by using screwing elements with sleeves fitted thereon;   a plurality of engaging members, each including an actuating member fitted thereon, retained in a notch of the support plate and covered by a housing member, the engaging member further including at least one resilient element fitted on one side thereof so as to bias against the housing member and push one end of the engaging member to retain in one of the recesses, the actuating member including an extension disposed on end thereof so that when a first driving stem of the actuating member is driven, the engaging member is controlled to engage to or disengage from the recess, and one end of the actuating member extending out of the housing member is limited in the support plate by ways of a locking member.   
     
     
         2 . The adjusting assembly adopted for the seat of the chair as claimed in  claim 1 , wherein a controlling line inserted through a second driving stem is used to control the engaging member to engage to or disengage from the recess.