Trailer and frame thereof
US9663013B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 30, 2015 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Dec 30, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P3/2245
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
This disclosure relates to a frame and a frame thereof. The frame comprises a frame body, wherein the frame further comprises an assistant unloading device disposed on the frame body, the assistant unloading device comprises an air bag, a mounting plate, and at least a set of guides; the air bag is fixed to the mounting plate, the guides comprises a guiding tube and a guiding rod, the guiding tube is vertically disposed on the frame body, the guiding rod is inserted into the guiding tube and connected to the mounting plate, and by inflating the air bag, the guiding rod is moved to vertically rise along the guiding tube to perform assistant unloading, thereby the trailer and frame of the disclosure have not only a simple structure, a light mass, and a lower cost, but also an excellent lifting capability and a stable lifting process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.