Patent ID: 7025666
Filing Date: 2006-04-11
Classification: B24B

Abstract:
1. A sand belt replacement apparatus for a belt sander, comprising: a lifting mechanism including: a lifting rod having a hollow lower end formed with an inner thread; a threaded rod having an upper end provided with an outer thread screwed into the inner thread of the lifting rod to move the lifting rod by rotation of the threaded rod; wherein the lifting mechanism further includes a first bevel gear secured on a lower end of the threaded rod for rotating the threaded rod, and the sand belt replacement apparatus further comprises an adjusting mechanism including a rotation shaft rotatable mounted on the main frame, a second bevel gear secured on a first end of the rotation shaft to rotate therewith and meshing with the first bevel gear for rotating the first bevel gear, and a control handle secured on a second end of the rotation shaft for rotating the rotation shaft; the adjusting mechanism further includes a locking bolt extended through the control handle and screwed into the second end of the rotation shaft; the locking bolt is screwed into the second end of the rotation shaft to lock the control handle on the rotation shaft, so that the control handle is locked by the locking bolt and cannot rotate the rotation shaft.