Mast connecting structure
US5067592A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1989 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Sep 22, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B2200/403
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A mast connecting structure is disclosed in which the mast includes a lower end having upper plate connected to the lower end of a mast, and lower plate spaced from the upper plate and connected to a base on which the mast is to be mounted. Tensioned connecting device connect the upper plate and lower plate means together to thereby mount the mast on the base. The connecting may comprise bolts having threaded ends and nuts threaded on the bolts. The bolts have an elongated length sufficient to span the thickness of the upper and lower plate means through which the volts pass plus the distance of the space between the upper and lower plate. The long bolt length increases the volume of the bolt body which results in an increased stress distribution and thereby an increased ability to withstand stress due to impact loading of the connecting structure. The mast end and mast base are preferably held apart at a spaced distance by support device such as spacer tubes positioned between the upper and lower plate and coaxially with the connecting bolts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.