Road finisher, screed plate, and tamper bar comprising a heating element and method to manufacture the same
First Claim
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1. A road finisher, comprising:
- a screed plate extending at right angles to the working direction (a) of said road finisher; and
a tamper bar disposed rearwardly and/or forwardly of said screed plate in the working direction (a), wherein an electrical heating device comprising a power source, at least one electrically operated heating element electrically connected to said power source and a switchgear unit for switching said at least one heating element on and off is present, which is configured so as to heat up a heating surface facing a road subsurface (U),wherein said at least one heating element comprises a heating layer at least partially obtained through thermal spraying onto a substrate surface, andwherein said heating layer is multilayered and comprises at least an insulating layer, a strip conductor and a sealing layer.
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Abstract
The present invention relates to a road finisher comprising a screed plate and/or a tamper bar and also to a screed plate and/or tamper bar comprising a heating layer applied by thermal spraying.
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Citations
17 Claims
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1. A road finisher, comprising:
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a screed plate extending at right angles to the working direction (a) of said road finisher; and a tamper bar disposed rearwardly and/or forwardly of said screed plate in the working direction (a), wherein an electrical heating device comprising a power source, at least one electrically operated heating element electrically connected to said power source and a switchgear unit for switching said at least one heating element on and off is present, which is configured so as to heat up a heating surface facing a road subsurface (U), wherein said at least one heating element comprises a heating layer at least partially obtained through thermal spraying onto a substrate surface, and wherein said heating layer is multilayered and comprises at least an insulating layer, a strip conductor and a sealing layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification