Wagon with latch system for collapsible walls
US9358445B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2016 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Jan 11, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C11/045
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A collapsible wagon includes a base and one or more upstanding walls forming a container for cargo. At least one of the upstanding walls is pivotally mounted to the base for pivoting between an unfolded position for use and a folded position for storage and transport. In some embodiments, the wagon includes a pinchless internal mechanical stop that eliminates pinch points where a user's fingers can be pinched during folding and unfolding of the walls. In some embodiments, the wagon includes a gang-operated latch system for releasably securing one of the walls to another one of the walls that is quick, easy, and reliable to use for folding and unfolding. And in some embodiments, the wagon includes a latch system that eliminates slack or play when in the unfolded use position for structural integrity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.