发明名称 |
Paving machine having transversely and longitudinally adjustable grade sensors |
摘要 |
A paver of the floating screed type which is capable of operating with screed extensions for laying down pavement at various widths includes a self-contained, stowable and extensible grade reference system with a wide, planar adjustment range. The grade reference system provides an adjustment range for positioning a grade sensing device on either or both sides of the paver both forward and transversely outward from a selected support point on the paver. The grade reference system has a pivotally outer support member which permits the sensing device to become positioned at any selected setting of an arcuate path forward of a rearward position in substantial alignment with the leading edge of the screed to a forward position determined by the length of the member. The pivotal adjustment range of the outer support member is augmented by a transverse adjustment range effected by an extension or retraction of a corresponding support member to shift the pivot axis of the outer support member respectively outward or inward. The combination of the two adjustments provides for a mix of anticipatory grade change sensing combined with laterally outward extensions of the screed beyond the full extension range of the screed.
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申请公布号 |
US4948292(A) |
申请公布日期 |
1990.08.14 |
申请号 |
US19890384392 |
申请日期 |
1989.07.24 |
申请人 |
CEDARAPIDS, INC. |
发明人 |
HAVEN, MATTHEW B.;MUSIL, JOSEPH E. |
分类号 |
E01C19/00 |
主分类号 |
E01C19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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