A CHAIR HAVING SUPPORT DEPARTMENT OF WAIST

摘要

PURPOSE: A chair with a waist support is provided to enable a user to comfortably take a rest and to improve the health of a user, and to enhance use convenience. CONSTITUTION: A chair with a waist support comprises a waist support board(1) fixed to the bottom of a back seat plate, a frame(3) in which one end thereof is fixed to the upper end of the waist support board and the other end thereof fixes the seat back plate, and an operating joint unit(20) having a connection wire and a connection pipe. The frame comprises a fixed frame(31) which is fixed to a chair leg and a movable frame(32) which pivots rearward.