| 摘要 |
A trim element having a visible side (12) formed of a skin (10), the element includes a skin (10) laid on a plastic foam (24) bonded to the skin by a continuous bonding layer (26) formed spontaneously at the skin-foam interface during the foaming operation, the skin (10) has a preferential rupture initiator comprising at least one scored feature. Throughout the region in which the scored feature lays, the bonding layer (26) is in contact only with the skin (10) and the foam (24), and, at the scored feature and in the direction of the thickness of the skin, the bonding layer (26) is laid over the opening with a thickness very much smaller than the depth of the scored feature. |
| 主权项 |
1. A trim component which has a visible face which is formed by a skin, the component comprising:
a skin which is arranged on a layer of plastics material foam, the layer of plastics material foam comprising, after an operation for foaming a fluid plastic material, a connection layer and a foam layer, the foam layer being connected to the skin by means of a continuous connection layer which is formed spontaneously at the skin/foam interface during the operation for foaming the fluid plastics material in contact with the skin, the skin having a preferential breakage device which comprises at least one notch which opens via an opening at the side opposite the visible face, wherein, substantially in the whole of the zone in which the notch is located, the connection layer is in contact only with the skin and the foam layer and, in the region of the notch and in the direction of the thickness of the skin, the connection layer is arranged on the opening with a thickness being less than the depth of the notch, wherein the notch has, in cross-section, a V-shape having an angle greater than 45°, the notch being completely filled with the foam layer and the connection layer such that the foam layer is separated from a wall of the notch by the continuous connection layer, and wherein a number of cavities in the connection layer is small relative to a number of cavities in the foam layer such that the connection layer has a small number of cavities and the foam layer has a greater number of cavities. |
