Patent ID: 9022482
Filing Date: 2015-05-05
Classification: A47C

Abstract:
1. A stretching structure of a tension member for a chair, the stretching structure comprising a frame having a recess on a front surface and a first groove in a first outer circumference, an engagement member engaged in the recess of the frame and having a second groove in a second outer circumference, the second groove communicating with the first groove of the frame, a tension member stretched over the front surface of the frame by inserting a circumference of the tension member into the first and second grooves, wherein an engagement projection is provided on one opposing surface of the recess of the frame and the engagement member, an engagement groove which engages with the engagement projection being formed in the other opposing surface, the engagement projection being prevented from leaving the engagement groove by movement of the engagement member resulting from tension of the tension member, and wherein there is provided an ear for connecting with another member of the chair on an outer circumferential surface of the frame, the recess being formed in the frame closer to the front surface than the ear, the engagement member fitting in the recess.