Hook shaft balance connection structure
US7604264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2007 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Jan 22, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/0969
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hook shaft balance connection structure includes an operating element, a balance rod, and a connecting part. The operating element moves into a shell along the direction of the imposed force. The operating element includes a protrusion toward the direction of the force. The balance rod includes two axial parts and an eccentric part. The axial parts are on both ends of the balance rod, pivotally connected with the shell. The axes of them are on the same extension line. The eccentric part is disposed between the two axial parts, deviating from the axial parts by a predetermined distance. Its axis is parallel to those of the two axial parts. The eccentric part includes a first eccentric part in contact with the protrusion of the operating element and a second eccentric part by the first eccentric part. The connecting part includes a pushing part and two coupling parts. The pushing part is connected with the second eccentric part. The two coupling parts are connected to both ends of the connecting part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.