| 摘要 |
PROBLEM TO BE SOLVED: To enhance the comfortableness of sitting by providing one support wire with bent part on a frame body, and supporting the upper part of a pad by this support wire. SOLUTION: One support wire 1 is formed of bent parts 10 provided under a pair of support cylinders 20 and bent in down U-shape for hooking a backboard 4, and linear parts 11 provided between the lateral bent parts 10 and outside of the lateral bent parts 10 to prevent the deformation of a pad. Such a support wire 1 is horizontally erected in the upper part of a frame body 2, and both ends of the support wire 1 are welded to the frame body 2. According to this, since the number of part items can be reduced to reduce the number of welding and the weight, the deflection is longitudinally increased, so that a seat back with satisfactory cushioning property in the upper part of the seat back and satisfactory comfortableness of sitting can be provided. |
