Patent ID: 6971298

Claim:
A miter saw comprising: a base portion on which a workpiece to be cut is held; a main body having a lower wall and a slant wall continous with the lower wall; a main body support movably supporting the main body with respect to the base portion laterally tiltably and vertically pivotably; a saw blade shaft having a flanged abutment portion, the saw blade shaft defining its axial direction and having one end and another end; a pair of first saw blade shaft bearing and a second saw blade shaft bearing spaced away from the first saw blade shaft bearing in the axial direction of the saw blade shaft, the first and second saw blade shaft bearings being supported on the main body for rotatably supporting the saw blade shaft, the flanged abutment portion being positioned between the first and second saw blade shaft bearings; a circular saw blade fixed to the one end of the saw blade shaft, the first saw blade shaft bearing being positioned adjacent the one end; a motor housing fixed to the main body; a motor disposed in the motor housing and having a motor shaft rotatably supported by the main body and extending in parallel with the saw blade shaft; a power transmission mechanism disposed in the main body for transmitting a rotation of the motor shaft to the saw blade shaft, the power transmission mechanism comprising a motor shaft pulley fixed to the motor shaft; an intermediate shaft disposed adjacent to the saw blade shaft and extending in parallel therewith, the intermediate shaft extending its axial direction and having one end adjacent to the circular saw blade and another end remote therefrom; a first intermediate shaft bearing and a second intermediate shaft bearing spaced away from the first intermediate shaft bearing in the axial direction of the intermediate shaft, the first and second intermediate shaft bearings being supported to the main body for rotatably supporting the intermediate shaft; an intermediate shaft pulley fixed to the intermediate shaft and in alignment with the motor shaft pulley; an endless belt mounted between the motor shaft pulley and the intermediate shaft pulley; a pinion formed on the intermediate shaft at the one end portion thereof; and a gear coaxially fixed to the saw blade shaft and in abutment with the flanged abutment portion at a position in alignment with the pinion and in meshing relation therewith, the first intermediate shaft bearing being positioned beside the pinion, and the second intermediate shaft bearing being positioned at the another end of the intermediate shaft, the intermediate shaft pulley being positioned between the first and second intermediate shaft bearings, the lower wall extending in parallel with the saw blade shaft and the slant wall surrounding the second saw blade shaft bearing, the intermediate shaft pulley and the second intermediate shaft bearing.