| 摘要 |
An apparatus is provided for mounting to a work tool shaft to facilitate and reduce stress in the use of the tool. The apparatus includes a mounting portion adapted for receiving the work tool shaft and a handle mounted to the mounting portion. The handle includes an elongated portion offset from the work tool shaft and adapted for gripping by a user of the tool. The handle elongated portion is disposed, at least in part, intermediate the mounting portion and the work tool head and is substantially in line with the tool shaft. The mounting portion is adapted so that it can slide along the work tool shaft when no leverage is exerted on the handle and can firmly hold the work tool shaft when leverage is exerted on the handle. An adjustment assembly is provided for adjusting the sliding resistance of the mounting portion on the work tool shaft. A brake is adapted to hold the mounting portion in a fixed position along the length of the work tool shaft when leverage is applied to the handle and to allow the mounting portion to move along the length of the work tool shaft when the leverage is removed. |
