| 摘要 |
<p>A sleigh-shaped device, having a longitudinal axis and a transverse axis, for use in a mining raise. The sleigh-shaped device has a base frame for sliding along the mining raise in a direction parallel to the longitudinal axis, the base frame having a bottom surface with sliding runners extending parallel to the longitudinal axis, and a top surface having front and rear opposite ends. The device also has a tiltable platform pivotally mounted to the top surface of the base frame between the front and rear ends about a first axis parallel to the transverse axis, and platform adjusters cooperating with the base frame and the tiltable platform for adjusting the tiltable platform with respect to the base frame. The device further has connecters for anchoring the base frame to a pulley system to provide movement of the sleigh-shaped device along the mining raise, the front and of the base frame extending below the rear end of the same during movement of the sleigh-shaped device along the mining raise. The sleigh-shaped device comprises various adjustable features enabling the device to adapt itself to the particular geometric configurations of various types of mining raises. The device includes an ergonomic stand structure allowing a user to operate a tool for carrying out tasks along the raise with little effort. The device enables top to bottom sequence of work along the raise. It also offers a newer and safer approach to working in mining raise and includes various safety features in order to not only provide better performance, but also greater safety to its users.</p> |
