DEVICE FOR ADJUSTING THE ANGLE OF CHAIR SEAT

摘要

The present invention relates to a device for adjusting the angle of a chair seat. The device comprises an upper case having an axial hole formed in the center on both sides thereof and a coupling part formed at the bottom thereof; a lower case having an axial hole formed on both sides thereof and including a coupling part having a guide member arranged on the bottom thereof; a rotary shaft installed through the axial holes of the upper case and the lower case; a pressurization part which penetrates through the coupling part of the lower case to be horizontally operated to the left and right; and an operation part having a guide hole formed in a lower portion thereof, and including a pressurization piece and a contact pressurization ring, provided in contact with the guide hole on both sides of the pressurization piece, in an upper portion thereof. According to the present invention, since a user can adjust the angle of a chair seat within a tilt range of motion to allow comfortable sitting, and fix the angle and then sit on the chair, the device of the present invention can relax the user′s tense back and, at the same time, enables the user to sit on the chair for a long period of time.