Vibrating plate with unbalanced shafts arranged at an angle
US8721218B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2006 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Nov 8, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D3/074
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A vibrating plate for compacting soil comprises an upper mass; a lower mass, which is elastically coupled to the upper mass and which has at least one soil contact plate, and; a vibration generator device that acts upon the soil contact plate. The vibration generator device comprises at least four unbalanced masses that can each be rotationally driven about a rotation axis, the rotation axis of at least two of the unbalanced masses being arranged at an angle to the rotation axes of the other unbalanced masses. One of the unbalanced masses depicts a reference unbalanced mass that does not require its own phase adjusting device. On the other hand, a separate phase adjusting device is assigned to each of the other unbalanced masses, enabling the phase position of these unbalanced masses to be individually adjusted with regard to the reference unbalanced mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.