Rotary pivot arm positioning assembly
US9764762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2015 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Jul 10, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2301/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotary pivot arm positioning assembly for a paving, texturing, or curing machine allows the machine to automatically transition from an operational orientation to a transport orientation without manual repositioning or disconnection of its components. The assembly includes a pivot arm coupled to both the front and aft ends of an end frame by a helical actuator, slew gear drive or other rotary actuator. The rotary actuator articulates each pivot arm, as well as the adjustable leg and steerable crawler connected to the pivot arm, through at least a 90-degree range. The end frame may be fixed to the left or right end of the machine. The assembly may additionally include a second helical actuator, slew gear drive or rotary actuator connecting each steerable crawler to the adjustable leg and configured to rotate the steerable crawler through a full 360 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.