Miter saw assembly with detachable circular saw

Patent metadata

Field	Value
Publication number	US-9463515-B2
Application number	US-201414195224-A
Country	US
Kind code	B2
Filing date	Mar 3, 2014
Priority date	Mar 3, 2014
Publication date	Oct 11, 2016
Grant date	Oct 11, 2016

Abstract

A miter saw assembly including a circular saw detachably coupled to a miter base is provided. The circular saw includes a circular blade, a motor, a power supply, and an attachment mechanism. The motor is operable to rotate the circular blade. The power supply is operable to provide power to the motor. The attachment mechanism detachably couples with a coupling arm of the miter base. The miter base includes a base and a support arm. The support arm includes the coupling arm, a vertical pivot, and a horizontal pivot. The vertical pivot is operable to pivot the coupling arm in a vertical plane. The horizontal pivot is rotatably coupled with the base. The horizontal pivot is operable to rotate the coupling arm in a horizontal plane.

First claim

What is claimed is:

1. A miter saw assembly comprising:
a circular saw comprising:
a circular blade,
a motor operable to rotate the circular blade,
a power supply operable to provide power to the motor,
an attachment mechanism,
a blade guard movable between an extended position covering the circular blade and a retracted position exposing the circular blade, and
a blade guard lever operable to move the blade guard between the extended position and the retracted position, the blade guard lever movable between a closed position corresponding to the extended position of the blade guard and an open position corresponding to the retracted position of the blade guard, wherein the blade guard lever comprises a lever gear and the blade guard comprises a blade guard gear, and wherein the lever gear is movable with the blade guard lever to drive the blade guard gear to move the blade guard between the extended position and the retracted position; and

a miter base comprising:
a base, and
a support arm comprising:
a coupling arm detachably coupled with the attachment mechanism of the circular saw,
a vertical pivot operable to pivot the coupling arm in a vertical plane, and
a horizontal pivot rotatably coupled with the base, the horizontal pivot operable to rotate the coupling arm in a horizontal plane.

2. A miter saw assembly comprising:
a circular saw comprising:
a circular blade,
a motor operable to rotate the circular blade,
a power supply operable to provide power to the motor,
an attachment mechanism,
a blade guard movable between an extended position covering the circular blade and a retracted position exposing the circular blade, and
a blade guard lever operable to move the blade guard between the extended position and the retracted position, the blade guard lever movable between a closed position corresponding to the extended position of the blade guard and an open position corresponding to the retracted position of the blade guard; and

a miter base comprising:
a base, and
a support arm comprising:
a coupling arm detachably coupled with the attachment mechanism of the circular saw,
a vertical pivot operable to pivot the coupling arm in a vertical plane,
a horizontal pivot rotatably coupled with the base, the horizontal pivot operable to rotate the coupling arm in a horizontal plane, and
a support arm lever rotatably coupled to the support arm, the support arm lever operable to rotate between an inward position and an outward position, wherein the support arm lever is operable to move the blade guard lever between the closed position and the open position as the support arm lever rotates between the inward position and the outward position.

3. The miter saw assembly according to claim 2 , wherein the support arm lever rotates from the inward position to the outward position as the coupling arm is pivoted downward at the vertical pivot, and the support arm lever rotates from the outward position to the inward position as the coupling arm is pivoted upward at the vertical pivot.

4. The miter saw assembly according to claim 3 , wherein the support arm lever comprises a gear that is rotated in unison with the vertical pivot to rotate the support arm lever between the inward position and the outward position.

5. A miter saw assembly comprising:
a circular saw comprising:
a circular blade,
a motor operable to rotate the circular blade,
a power supply operable to provide power to the motor, and
an attachment mechanism; and

a miter base comprising:
a base, and
a support arm comprising:
a coupling arm detachably coupled with the attachment mechanism of the circular saw,
a vertical pivot operable to pivot the coupling arm in a vertical plane, and
a horizontal pivot rotatably coupled with the base, the horizontal pivot operable to rotate the coupling arm in a horizontal plane,

wherein:
the attachment mechanism comprises a slot formed in a housing of the circular saw between at least one slot indent, a slot side wall, a slot bottom wall, and a slot top wall,
the coupling arm comprises a slide, and
the slide is received within the slot to detachably couple the coupling arm with the attachment mechanism.

6. The miter saw assembly according to claim 5 , wherein the slot and the slide are generally rectangular or square shaped.

7. The miter saw assembly according to claim 5 , wherein the slot and the slide are generally trapezoidal shaped.

8. The miter saw assembly according to claim 5 , wherein the attachment mechanism comprises a tightening mechanism operable to apply pressure to the slide such that the slide is pushed against at least two of the at least one slot indent, the slot side wall, the slot bottom wall, and the slot top wall.

9. The miter saw assembly according to claim 8 , wherein the slot comprises a slide clamp attached to at least one of the slot side wall, the slot bottom wall, and the slot top wall, and wherein the tightening mechanism is operable to apply pressure to the slide by forcing the slide clamp against the slide.

10. The miter saw assembly according to claim 8 , wherein the tightening mechanism is at least one screw that is extendable through the housing into the slot.

11. The miter saw assembly according to claim 5 , wherein the coupling arm comprises a locking mechanism operable to secure the slide within the slot.

12. The miter saw assembly according to claim 11 , wherein the slot indent comprises an indent gap, and wherein the locking mechanism comprises a protrusion operable to:
extend into the indent gap to secure the slide within the slot, and
retract from the indent gap to release the slide such that the slide is removable from the slot.

13. The miter saw assembly according to claim 12 , wherein the coupling arm comprises a locking lever operable to move between a locked position and an unlocked position, the locking lever operable to extend the protrusion when moved to the locked position and retract the protrusion when moved to the unlocked position.

Assignees

• Sears Brands Llc

Inventors

• Knight Colin
• Coric Milos V
• Bradley Sam

Classifications

• Y10T83/7697

  Tool angularly adjustable relative to work-support · CPC title

• Y10T83/606

  Interrelated tool actuating means and guard means · CPC title

• B23D47/02

  of frames; of guiding arrangements for work-table or saw-carrier · CPC title

• B23D59/007

  for mounting a portable sawing device on a frame part · CPC title

• B23D45/044 Primary

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