Height adjustment mechanism for power tool

摘要

A power tool includes a support arrangement and a work surface that is supported by the support arrangement and that includes a top surface having an opening configured to receive a rotatable blade. The power tool also includes a cutting assembly that is supported by the support arrangement and that includes a motor, a drive shaft driven by the motor, and the rotatable blade rotated by the drive shaft. The power tool also includes a height adjustment mechanism coupled to the support arrangement and to the cutting assembly. The height adjustment mechanism is configured to move the cutting assembly upwardly and downwardly relative to the top surface. The height adjustment mechanism includes a threaded shaft, at least one nut threadably coupled to the threaded shaft, and at least one connection member rotatably coupled to the at least one nut and to the cutting assembly.

主权项

1. A power tool, comprising:
a support arrangement configured to support the power tool on a surface; a work surface supported by the support arrangement and including a top surface with an opening configured to receive a rotatable blade; a cutting assembly supported by the support arrangement, the cutting assembly including a motor, a drive shaft driven by the motor, and the rotatable blade rotated by the drive shaft; and a height adjustment mechanism coupled between the support arrangement and the cutting assembly and configured to move the cutting assembly upwardly and downwardly relative to the top surface, the height adjustment mechanism including:
a first member configured to move in a first direction and a second direction; anda second member having a first end coupled to the first member and a second end coupled to the cutting assembly, the second member movable in a third direction to move the cutting assembly upwardly when the first member moves in the first direction and movable in a fourth direction to move the cutting assembly downwardly when the first member moves in the second direction, wherein: the second member is only coupled to the power tool at the first end and the second end; the height adjustment mechanism further includes a threaded shaft, the first member is at least one nut threadably coupled to the threaded shaft, and the second member is at least one connection member coupled to the at least one nut and to the cutting assembly; the at least one nut is threadably coupled to the threaded shaft such that rotation of the threaded shaft in a first rotational direction moves the at least one nut along the threaded shaft in a first lateral direction and rotation of the threaded shaft in a second rotational direction moves the at least one nut along the threaded shaft in a second lateral direction; the height adjustment mechanism further includes at least one guide rod coupled to the support arrangement, the cutting assembly is coupled to an arm configured to be slidably received on the at least one guide rod, and the at least one connection member is coupled to the cutting assembly via the arm; and movement of the at least one nut in the first lateral direction moves the cutting assembly upwardly along the at least one guide rod and movement of the at least one nut in the second lateral direction moves the cutting assembly downwardly along the at least one guide rod.