| 摘要 |
530,394. Seats. FIRESTONE TYRE & RUBBER CO., Ltd. June 22, 1939, Nos. 18215, 18216 [Convention dates, June 23, 1938] and 18217 [Convention date, Oct. 28, 1938]. [Classes 52 (ii) and 52 (iv)] A seat construction comprises a frame having opposed portions 12, 14 to which is secured supporting means 17 including resilient means 18 connected between spaced points on the supporting means. Fig. 3 shows the frame formed of one piece of resilient material bent downwardly at the ends of the rear portion 12 and twisted through 90 degrees to form side portions 13 which curve upwardly to the front portion 14 which is free to move downwardly under load, the seat being fixed at the rear by brackets 15. Fabric sheets 17 looped around the bars 12, 14 are joined by spaced rubber strips 18 vulcanized to the fabric, and a sponge rubber cushion 19 is supported on the resilient sheet thus formed and held in place by an upholstery cover 20 tacked to a frame 20a. The rear portion 12 of the frame may be tubular and the front portion 14 channelled. In addition to the side members 13 intermediate resilient members may be provided. Cables may be connected between the front bar 12 and the fixed frame to limit the rebound of the seat. Fig. 1 1 shows a modification in which the front bar 36 is carried by leaf springs 34 from a transverse support 31 which also carries by arms 32 and brackets 33 the rear bar 30. A wire tacking strip 39 for the cover is also fixed to the bar 30. In Fig. 12 the invention is applied both to the seat 40 and the back 41, the resilient sheet 47, 48 for the seat being stretched on a frame 43 supported by members 55 from a base 54 while that for the back is stretched on a similar frame 56. A loop 49 of the fabric 47 extends beneath the rubber strips 48 and serves as a safety connection if the strips break. The rubber strips 48a at the centre of the frame are made wider than those at the ends and the sides of the sheet 47 are supported from the sides 44 of the frame by rubber strips 51 secured to sections of fabric 52.
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