Foldable miter saw

Patent metadata

Field	Value
Publication number	US-10632550-B2
Application number	US-201916260184-A
Country	US
Kind code	B2
Filing date	Jan 29, 2019
Priority date	Feb 1, 2018
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

A foldable miter saw includes a base unit, a worktable unit rotatably mounted on the base unit and includes an axle block, a cutting unit having a rotatable member axially mounted to the axle block, an adjusting member adjustably mounted on the axle block, and a positioning device mounted on the rotatable member. Rotating the rotatable member relative to the axle block causes the cutting unit to be shifted between a working position where the adjusting member supports the positioning device in position and the end faces of the saw blade are kept perpendicular to the work surface, and a folded position where the adjusting member and the positioning device are separated from each other and one end face of the saw blade approaches the work surface.

First claim

What is claimed is:

1. A foldable miter saw, comprising:
a base unit comprising a front side, a rear side opposite to said front side and a top surface extended from said front side to said rear side;
a worktable unit rotatably mounted on said base unit, said worktable unit comprising a work surface that corresponds to said top surface and an axle block positioned at said rear side and connected to said work surface, said axle block defining an axis that extends from said rear side toward said front side in a parallel manner relative to said work surface;
a cutting unit comprising a rotatable member axially mounted to said axle block and rotatable about said axis relative to said worktable unit, a supporting arm pivotally connected to said rotatable member, a saw blade mounted to said supporting arm and a driving member mounted on said supporting arm and adapted for rotating said saw blade, said saw blade defining two opposing end faces; a supporting portion located on one of the said axle block and said rotatable member and a bearing portion located on the other of said axle block and said rotatable member, said bearing portion having said positioning device therein and being positioned on said supporting portion when said cutting unit is in a folded position;
an adjusting member adjustably mounted on one of said axle block and said rotatable member; and
a positioning device mounted on the other of said axle block and said rotatable member;
wherein the foldable miter saw is configured so that when said rotatable member of said cutting unit is rotated relative to said axle block of said worktable unit, said cutting unit is shifted between a working position where said adjusting member supports said positioning device in the working position and said end faces of said saw blade are kept perpendicular to said work surface, and a folded position where said adjusting member and said positioning device are separated from each other and one said end face of said saw blade is folded toward said work surface.

2. The foldable miter saw as claimed in claim 1 , wherein said positioning device comprises a positioning pin operably mounted to the other of said axle block and said rotatable member, said positioning device being operable to shift said cutting unit between said working position and said folded position, said positioning device holding said rotatable member in position relative to said axle block and said adjusting member supporting said positioning pin when said cutting unit is in said working position, said cutting unit being shiftable to said folded position when said positioning pin is operated and separated from one of said rotatable member and said axle block.

3. The foldable miter saw as claimed in claim 2 , wherein said adjusting member is mounted on said axle block; said positioning device is mounted on said rotatable member, comprising the positioning pin and an elastic member mounted between said positioning pin and said rotatable member, said positioning pin being movable relative to said axle block between a locking position and an unlocking position, said elastic member imparting a force to said positioning pin to engage with said axle block.

4. The foldable miter saw as claimed in claim 3 , wherein said axle block of said worktable unit comprises a screw hole disposed perpendicular to said axis; said adjusting member being a screw threaded into said screw hole.

5. The foldable miter saw as claimed in claim 1 , wherein said supporting portion is a screw bolt fastened to said axle block; said bearing portion is a sleeve located on said rotatable member and defines therein a sleeve hole for the insertion of said positioning device.

Assignees

• Rexon Ind Corp Ltd

Inventors

• Lin Wei Chen

Classifications

• B23D45/14

  for cutting otherwise than in a plane perpendicular to the axis of the stock, e.g. for making a mitred cut · CPC title

• B23D45/044 Primary

  the saw blade being adjustable according to angle of cut (B23D45/025 takes precedence) · CPC title

• B23D47/025

  of tables · CPC title

• B27B5/29

  Details; Component parts; Accessories · CPC title

• B23D57/0092

  dismountable, collapsible or transportable, e.g. by means of a carrying case · CPC title