Conveyor shock absorber
US6845720B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61G9/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A shock absorbing tow bar for connecting between a drive trolley and a load carrying trolley of a conveyor system. The tow bar includes a pair of tubes that reciprocate relative to each other. A plunger is located within a first of the tubes and attached to a second tube. Mounted on the plunger are a pair of brake surfaces that frictionally engage the first tube. The brake surfaces are biased toward the first tube by springs and the force applied to the brake surfaces is adjustable through an adjustment mechanism including a pair of wedges upon which the springs are located. An adjustment rod is joined with the adjustment mechanism and extends outwardly from the tow bar to allow an operator to adjust the friction produced by the brake surfaces without disassembly of the tow bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.