| 摘要 |
An endless conveyor belt for a conveyor device, includes a planar body (2) that is transversely deformable into a tubular configuration, the body having a plurality of longitudinal reinforcing members built into the body thereof. The body has an upper layer (10), a portion of the lower surface of which is combined with a lower layer (11). The two layers are made of two different elastomer materials, with the lower layer made of a first elastomer material, whose hardness is greater than that of the second elastomer material constituting the upper layer, and the lower layer includes a plurality of softening recesses (13) that are distributed across the entire length of the lower layer and each of which extend over at least a portion of the body thereof so as to reduce the resistance thereof to longitudinal deformations in order to reduce the resistance to the bending of the conveyor belt into the tubular configuration thereof. |
| 主权项 |
1. Endless conveyor belt for a conveying device (18), which conveyor belt (1) comprises a body (2) that can be deformed transversely between—a flat configuration, at rest, and—a tubular or at least substantially tubular configuration, which body (2) incorporates in its thickness a plurality of longitudinal reinforcing members (6) suitable for limiting its ability to stretch longitudinally, and which body (2) is delimited by two faces: —one top face (3) designed to receive the product to be conveyed, and—one bottom face (4) designed to interact with driving and guiding means (17, 29, 30, 31) constituting said conveying device (18), said top face (3) and bottom face (4) being designed to be oriented respectively toward the inside and the outside of the conveyor belt (1) in said tubular configuration, characterized in that said body (2) consists of an upper layer (10) forming said top face (3), in which at least a portion of its lower surface is superimposed fixed to a lower layer (11) forming said bottom body face (4), in that said two layers (10, 11) are made of two different elastomer materials, with said lower layer (11) made of a first elastomer material the hardness of which is greater than that of the second elastomer material constituting said upper layer (10) with a coefficient of friction of said top face (3) being greater than a coefficient of friction of said bottom face (4), and in that said lower layer (11) comprises, distributed over the whole of its length, a plurality of softening recesses (13) each extending over at least a portion of its thickness, in order to reduce its resistance to the longitudinal deformations in order to reduce the bending resistance of said conveyor belt (1) in its tubular configuration. |
