Tamper bar and wear plate for screed assembly of paving machine
US10246834B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2017 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Nov 20, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/48
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A screed assembly for a paving machine, the screed assembly includes a screed frame, a screed plate attached to the screed frame, a wear plate attached to the screed frame, a tamper bar mounted to the screed frame and configured for up and down reciprocating motion relative to the screed frame, and an eccentric drive mechanism mounted on the screed frame and configured for driving the tamper bar up and down in a reciprocating manner relative to the screed frame. A bottom portion of the tamper bar is configured to slide along the wear plate, which is attached to the screed frame in between the screed frame and the reciprocating tamper bar. The tamper bar includes at least two intersecting chamfered surfaces with different angles from each other and relative to the screed plate at a leading edge of the tamper bar facing in a direction of travel of the paving machine as the paving machine is applying paving material to a surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.