Buckle assembly for tie down strap
US9266462B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 20, 2012 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Apr 20, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/2175
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A cam buckle frame includes a first roller aligned transversally across the frame proximate the free end of an operating lever of a web toothed locking cam. The roller directs the web in contact with the operating lever of the locking cam to provide a self-locking feature without requirement for a torsion spring. Other transverse posts and rollers may be included in the web clamp frame and the corresponding hook end of the tie-down to form a secured pulley arrangement to provide a multiplication of applied tension force. One end of the frame side-wall adjacent said first roller may form an integral hook assembly with a structural latch. An option is to have the frame closed out by connecting opposing walls with a section that provides a center port to allow attachment of various style hooks. A pivoting hook-end used to connect to soft hook loops is described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.