DEVICE FOR SPREADING A BITUMINOUS COATING FROM A FILM OF DETERMINED WIDTH OF THE COATING, AND METHOD FOR IMPLEMENTING SAME
2 Assignments
0 Petitions
Accused Products
Abstract
The device includes a unit for moving on the ground along a longitudinal direction of advance (32) and a spreading unit fed with bituminous coating by a feeding unit and adapted to spread during the displacement of the device the layer of bituminous coating over a determined width of the ground considered transversally to the direction of advance. The spreading unit is adapted to perform the rolling, the crumbling and the falling down to the ground of the bituminous coating.
11 Citations
36 Claims
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1-18. -18. (canceled)
- 19. A device for spreading a layer (4) of a bituminous coating on a ground (2) to be covered, including means for moving on said ground along a longitudinal direction of advance (32) and a spreading system fed with bituminous coating by feeding means and adapted to spread during the displacement of the device the layer of bituminous coating over a determined width of said ground considered transversally to the direction of advance, the spreading system being adapted to make above the ground a rolling of the bituminous coating and a crumbling of the rolled bituminous coating and the falling down to the ground of the crumbled bituminous coating, wherein the spreading system includes at least one crumbling-rolling sub-unit consisted of an extended roll and a rough cylinder, and wherein the extended roll is formed by an end part of an endless belt (8) extended between an upstream inner roll (10) and a downstream inner roll (9), the upstream and downstream inner rolls being parallel to the rough cylinder (12), the downstream inner roll (9) being opposite the cylinder (12), the belt (8) having a width substantially equal to the length of the cylinder, a bituminous coating film (6) of determined thickness (e) being made on the upper surface of the belt (8), said film being carried along towards the cylinder by said belt, said film being carried along toward the cylinder by said belt, the determined distance between the surfaces of the rough cylinder and of the belt passing over the downstream inner roll being lower than the determined thickness (e) of the bituminous coating film (6) made on the upper surface of the belt (8).
- 34. A method for spreading a layer (4) of a bituminous coating over a ground (2) to be covered, wherein, in a first time, the bituminous coating is rolled to make a bituminous coating film (6) of determined thickness (e) over a determined width and remote above the ground, and, in a second time, said film is crumbled (5) and the bituminous coating of the crumbled film is made to fall down to the ground, wherein the bituminous coating film of determined thickness (e) is made over an upstream part of an extended roll (8, 9, 10) consisted of an endless belt (8) extended between an upstream inner roll (10) and a downstream inner roll (9), and wherein a rough cylinder (12) including relief patterns (13) is implemented opposite the downstream inner roll to crumble (5) the film (6) made on the endless belt (8).
Specification