| 摘要 |
1361998 Making endless reinforcements by winding DEERING MILLIKEN RESEARCH CORP 1 Sept 1971 [3 Sept 1970 18 Nov 1970 14 Dec 1970] 40831/71 Heading B8G [Also in Divisions B5 and B7] An endless reinforcement, e.g. for use in the production of tyres, drive belts and conveyer belts, comprises one or more unitary strips, each strip comprising a multiplicity of continuous cords coated with or embedded in rubber and being arranged in a number of superimposed turns each consisting of a series of straight strip lengths extending alternately to and fro across the greater part of the width of the reinforcement obliquely to the edges thereof and interconnected at the edges by curved or folded strip parts to form a generally zig-zag pattern, the whole of each strip length in the or each superimposed turn overlying a gap between the two similarly inclined straight strip lengths most nearly adjacent to it in the turn immediately beneath the superimposed turn. The cords may be of glass, viscose rayon, nylon, polyester or cotton fibres or brass plated steel wires and may be associated in the unitary strip with rubber in one or more planes, the cords being equally or unequally spaced. In Fig. 6 strip 30 drawn over guide 44 is laid in the desired zig-zag pattern on surface 32 of rotatable drum 31 by guide means 33 mounted on rod 34, drum 31 and guide means 33 being driven by motor 35. Motor 35 is connected through belt and pulley arrangement 36 to rotatable shaft 37 connected to barrel cam 38 and to drive shaft 39 for drum 31 through gear train 40. Cam follower 42 connected to guide means 33 engages groove 38a in the surface of cam 38 which is of such configuration that during rotation of drum 31, guide 33 reciprocates across drum surface 32 transversely to the direction of rotation. Positioning of the strip on drum surface 32 during subsequent rotation of drum 31 is controlled by gear mechanism 43 so that the strip being laid is in a predetermined position with respect to other strip lengths. |
