FOLDABLE MITER SAW WITH A SAW BLADE LIMITING MEMBER

Abstract

A foldable miter saw with a saw blade limiting member includes a base unit, a worktable unit and a cutting unit. The worktable unit is rotatably disposed on the base unit and includes a working surface, an outer ring surface and an axial block. The cutting unit includes a rotatable member disposed on the axial block, a supporting arm pivotally disposed on the rotatable member, and a saw blade and a driving member mounted on the supporting arm. The supporting arm includes an inner side surface and a limiting member which protrudes from the inner side surface towards the outer side. When the cutting unit is in the folded position, an end face of the saw blade is disposed in proximity to the working surface, and the limiting member is disposed in proximity of the outer ring surface and between the top surface and the bottom surface.

Claims

1. A foldable miter saw with a saw blade limiting member, comprising: a base unit comprising a front side, a rear side opposite to said front side, a top surface extended from said front side to said rear side and a bottom surface opposite to said top surface; a worktable unit rotatably mounted on said base unit, said worktable unit comprising a work surface corresponding to said top surface, an outer ring surface intersected with a perimeter of said work surface and an axle block located at said rear side and connected to said work surface and said outer ring surface, said axle block comprising an axis parallel to said work surface and extends from said rear side toward said front side; and a cutting unit comprising a rotatable member axially mounted on said axle block and rotatable around said axis relative to said worktable unit, a supporting arm pivotally connected to said rotatable member, a saw blade mounted on said supporting arm and a driving member mounted on said supporting arm for driving said saw blade to rotate, said supporting arm comprising an inner surface facing toward said work surface, an outer surface opposite to said inner surface and a limiting member that protrudes from said inner surface towards opposite to the outerside of said outer surface, said saw blade comprising two opposing end faces and being biasable relative to said worktable unit between a working position and a folded position, wherein when said saw blade is in the working position, said saw blade and said work surface define therebetween a working contained angle and said limiting member is disposed above said axle block, and wherein when said saw blade is in the folded position, one of said end face of said saw blade is disposed in proximity to said work surface and said limiting member is disposed in proximity to said outer ring surface between said top surface and said bottom surface.

2. The foldable miter saw with a saw blade limiting member as claimed in claim 1, wherein said supporting arm of said cutting unit comprises two pivot discs spaced along a center line and axially mounted to said rotatable member and a shell cover connected to said pivot discs, said center line extending perpendicular to said axis, said saw blade and said driving member are mounted on said shell cover, said shell cover comprising a dust collector disposed adjacent to said pivot discs, said dust collector being a tubular shape comprising a dust collection hole extended along a transverse axis direction perpendicular to said center line; wherein said limiting member is mounted on said dust collector.

3. The foldable miter saw with a saw blade limiting member as claimed in claim 2, wherein said dust collector of said cutting unit has a U-shaped cross section perpendicular to said transverse axis direction, a first lateral side corresponding to one said pivot discs, a second lateral side corresponding to the other said pivot disc and an arch plate portion connected between said first lateral side and said second lateral side; wherein said limiting member is connected to said second lateral side.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG. 1 is an oblique top elevational view of a foldable miter saw in an extended working position in accordance with the present invention.

[0011] FIG. 2 is an exploded view of the foldable miter saw in accordance with the present invention.

[0012] FIG. 3 is an elevational view of the present invention, illustrating the cutting unit in the folded position.

[0013] FIG. 4 is a top view of the present invention, illustrating the cutting unit in the folded position.

[0014] FIG. 5 is a right-side view of the present invention, illustrating the cutting unit in the folded position.

DETAILED DESCRIPTION OF THE INVENTION

[0015] Referring to FIGS. 1 and 2, a foldable miter saw in accordance with the present invention is shown. The foldable miter saw comprises a base unit 10, a worktable unit 20 and a cutting unit 30.

[0016] The base unit 10 has a front side 11, a rear side 12 opposite to the front side 11, a top surface 13 extended from the front side 11 to the rear side 12, and a bottom surface 14 opposite to the top surface 13.

[0017] The worktable unit 20 is rotatably mounted on the base unit 10, comprising a work surface 21 corresponding to the top surface 13 of the base unit 10, an outer ring surface 22 that intersects the perimeter of the work surface 21, and an axle block 23 located at the rear side 12 and connected to the work surface 21 and the outer ring surface 22. The axle block 23 defines an axis L that extends from the rear side 12 toward the front side 11 in a parallel manner relative to the work surface 21.

[0018] The cutting unit 30 comprises a rotatable member 31 axially mounted to the axle block 23 and rotatable on the axis L relative to the worktable unit 20, a supporting arm 32 pivotally connected to the rotatable member 31, a saw blade 33 mounted in the supporting arm 32, and a driving member 34, such as a motor, mounted on the supporting arm 32 and adapted for rotating the saw blade 33.

[0019] The supporting arm 32 comprises two pivot discs 321 spaced along a center line L1 and axially mounted to the rotatable member 31, a shell cover 322 connected to the pivot discs 321, and a limiting member 35 located on the shell cover 322. The center line L1 extends perpendicular to the axis L. The shell cover 322 defines an inner surface 323 facing toward the work surface 21, an outer surface 324 opposite to the inner surface 323, and a dust collector 325 disposed adjacent to the pivot discs 321 and extended from the inner surface 323 toward the outer surface 324. The dust collector 325 is a tubular member having a dust collecting hole 326 extending along a transverse axis direction X that extends perpendicular to the center line L1, a U-shaped cross section perpendicular to the transverse axis direction X, a first lateral side 327 facing toward one pivot disc 321, a second lateral side 328 facing toward the other pivot disc 321, and an arch plate portion 329 connected between the first lateral side 327 and the second lateral side 328. The limiting member 35 is connected to the second lateral side 328 of the dust collector 325 and protrudes outwardly from the inner surface 323 opposite the outer surface 324.

[0020] The saw blade 33 is mounted on the other end of the shell cover 322 opposite to the pivot discs 321 and defines two opposing end faces 331.

[0021] The driving member 34 is installed in the shell cover 322 corresponding to the saw blade 33.

[0022] FIG. 1 shows the cutting unit of the miter saw in an extended position. At this time, the saw blade 33 and the work surface 21 define therebetween a working contained angle; the limiting member 35 is disposed above the axle block 23; the saw blade 33 is operable to cut a workpiece (not shown).

[0023] When the miter saw is not used and is intended to be stored or packaged, the operator can operate the worktable unit 20 to rotate the cutting unit 30 by 45 degrees to the left side of FIG. 1 with respect to the base unit 10, then rotate the cutting unit 30 along the axis L to move one end face 331 of the saw blade 33 in proximity to the work surface 21. At this time, the cutting unit 30 reaches a folded position, and the outer ring surface 22 is disposed between the top surface 13 and the bottom surface 14.

[0024] Thus, when the cutting unit 30 is in the folded position, the end edge of the limiting member 35 is disposed in proximity to the outer ring surface 22 between the top surface 13 and the bottom surface 14 so that the end edge of the limiting member 35 can block the outer ring surface 22. In so doing, even if the miter saw is vibrated during transportation, the cutting unit 30 is prevented from vibrating, avoiding the damage of the parts from colliding with each other and further preventing the guard of the cutting unit 30 from being knocked open, which prevents the saw blade 33 from being exposed to ensure safety.

[0025] It should be noted that, in this embodiment, the limiting member 35 is integrally connected to the dust collector 325 of the miter saw, so that the limiting member 35 is not required to be separately manufactured and assembled. When the cutting unit 30 is folded, it is held positively in position relative to the base unit 10 and the worktable unit 20. The overall structure of the miter saw is simple and easy to manufacture, and the manufacturing cost can be reduced.

[0026] In summary, the foldable miter saw of the present invention has a simple overall structure that is easy to manufacture, so that the object of the present invention can be achieved.

[0027] Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.