Road finisher, tamper bar for a road finisher, and method for manufacturing a tamper bar
First Claim
1. A tamper bar for a road finisher, the tamper bar comprising:
- an upper tamper bar member and a lower tamper bar member assembled together,at least one electrically operated heating element, which is configured to heat a heating surface facing a road subsurface,wherein the heating element comprises at least one heating layer at least partially comprising a thermal spray coating, obtained through thermal spraying onto a substrate surface,wherein the upper tamper bar member has a lower surface which, in the assembled state, contacts an upper surface of the lower tamper bar member, wherein a groove is provided in the lower surface of the upper tamper bar member, andwherein the thermal spray coating is disposed in the groove of the upper tamper bar member.
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Accused Products
Abstract
A road finisher comprising a screed plate extending at right angles to the working direction of the road finisher, and a tamper bar disposed rearwardly and/or forwardly of the screed plate in the working direction, wherein at least one electrically operated heating element is present, which is configured so as to heat up a heating surface facing a road subsurface, and wherein the heating element comprises a heating layer at least partially obtained through thermal spraying onto a substrate surface, wherein the tamper bar is made from two parts with an upper tamper bar member and a lower tamper bar member assembled together. Further, a tamper bar for a road finisher and a method of manufacturing a tamper bar are provided.
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Citations
6 Claims
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1. A tamper bar for a road finisher, the tamper bar comprising:
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an upper tamper bar member and a lower tamper bar member assembled together, at least one electrically operated heating element, which is configured to heat a heating surface facing a road subsurface, wherein the heating element comprises at least one heating layer at least partially comprising a thermal spray coating, obtained through thermal spraying onto a substrate surface, wherein the upper tamper bar member has a lower surface which, in the assembled state, contacts an upper surface of the lower tamper bar member, wherein a groove is provided in the lower surface of the upper tamper bar member, and wherein the thermal spray coating is disposed in the groove of the upper tamper bar member. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification