Scissor arm assembly for a scissor lifting mechanism of an aerial work platform
US10358330B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2016 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Jul 10, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F9/127
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a scissor arm assembly for a scissor lift, comprising two scissor arms (124, 125) pivotally mounted about a shaft (70). Each arm is made of a tubular beam having a local reinforcement plate (80, 81, 82) welded on either side. Each arm (124, 125) has two through-holes (101, 102; 103, 104) for the shaft (70), each of which is made in a respective side of the beam and the corresponding reinforcement plate. The shaft (70) is circumferentially supported in each hole by both the wall of the beam and the corresponding reinforcement plate (80, 81, 82). The shaft is free of support inside the beam between the two through-holes (101, 102; 103, 104). This avoids having to weld, on either side of the scissor beam, a part inserted therein to house the shaft (70).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.