Saw attachment mechanism

Patent metadata

Field	Value
Publication number	US-9527145-B2
Application number	US-201113819327-A
Country	US
Kind code	B2
Filing date	Aug 31, 2011
Priority date	Aug 31, 2010
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A saw attachment mechanism includes at least one guide roller configured for releasable engagement with a track, a guide roller shaft and a guide roller pivot, each coupled to the guide roller, at least one pushrod configured for engagement with the guide roller shaft, and a cam shaft coupled to a handle. The guide roller can rotate around a guide roller axle. The guide roller pivot is coupled to the one guide roller to allow rotation of the guide roller and guide roller shaft toward and away from an engaged configuration. The pushrod can engage the guide roller shaft at a first end and the cam shaft at a second end. As the cam shaft is rotated, the pushrod slides to engage the guide roller shaft, to swing the guide roller shaft into an engaged position.

First claim

The invention claimed is:

1. A saw attachment mechanism for removably affixing a saw motor to a track, said attachment comprising:
at least one guide roller shaft pivotally connected to a saw attachment mechanism body; wherein the at least one guide roller shaft is configured to pivot into an engaged configuration or disengaged configuration, wherein a pivot axis of the at least one roller shaft is perpendicular to a longitudinal axis of the at least one roller shaft;
at least one guide roller configured for releasable engagement with the track, rotatably connected to the at least one guide roller shaft;
at least one pushrod configured for engagement with the at least one guide roller shaft at a first end and a cam shaft at a second end of the at least one pushrod; and
a handle coupled to the cam shaft, wherein operation of the handle causes the cam shaft to move the at least one pushrod, which engages the at least one guide roller shaft, biasing the at least one guide roller shaft toward the engaged configuration.

2. The saw attachment mechanism of claim 1 , further comprising a return spring for biasing the at least one guide roller toward the disengaged configuration.

3. The saw attachment mechanism of claim 1 , further comprising a handle rotation control mechanism coupled to the cam shaft, said rotation control mechanism configured to prevent rotation of the handle.

4. The saw attachment mechanism of claim 3 , wherein the rotation control mechanism is a push button.

5. The saw attachment mechanism of claim 1 , further comprising a body and said body housing the at least one pushrod, at least a portion of the cam shaft, and at least a portion of the at least one guide roller shaft.

6. The saw attachment mechanism of claim 1 , further comprising a guide roller shaft stop configured to prevent rotation of one of the at least one guide roller shaft from rotating beyond a predetermined angle of rotation.

7. The saw attachment mechanism of claim 1 , further comprising at least one adjustment mechanism to control the pivoting of one of the at least one guide roller shaft.

8. The saw attachment mechanism of claim 7 , wherein the at least one adjustment mechanism comprises a plurality of adjustment mechanisms to control a respective one of the at least one guide roller shaft.

9. The saw attachment mechanism of claim 1 , wherein the at least one guide roller comprises a pair of guide rollers, the at least one guide roller shaft comprises a pair of guide roller shafts, and the at least one pushrod comprises a pair of push rods.

10. The saw attachment mechanism of claim 1 , wherein the at least one guide roller comprises a plurality of guide rollers, the at least one guide roller shaft comprises a plurality of guide roller shafts, and the at least one pushrod comprises a plurality of push rods.

11. The saw attachment mechanism of claim 1 , wherein the at least one guide roller shaft comprises a first guide roller shaft and a second guide roller shaft, wherein the first guide roller shaft is pivotally connected to the saw attachment mechanism body and the second guide roller shaft is fixedly connected to the saw attachment mechanism body.

12. The saw attachment mechanism of claim 1 , wherein the rotatable connection between the at least one guide roller shaft and the at least one guide roller comprises a guide roller axle.

13. The saw attachment mechanism of claim 1 , wherein the at least one guide roller shaft comprises a first guide roller shaft and a second guide roller shaft; the at least one pushrod comprises a first pushrod and a second push rod; and
wherein operation of the handle causes the cam shaft to move the first and second pushrods, which engage the respective first and second guide roller shafts, biasing the respective first and second guide roller shafts toward the engaged configuration.

14. The saw attachment mechanism of claim 1 , further comprising a return spring for biasing the at least one guide roller toward the disengaged configuration.

15. A track system comprising
a track; and
a saw attachment mechanism configured to removably affix a saw motor to the track, the saw attachment mechanism including:
at least one guide roller shaft pivotally connected to a saw attachment mechanism body; wherein the at least one guide roller shaft is configured to pivot into an engaged configuration or disengaged configuration, wherein a pivot axis of the at least one roller shaft is perpendicular to a longitudinal axis of the at least one roller shaft;
at least one guide roller configured for releasable engagement with the track, rotatably connected to the at least one guide roller shaft;
at least one pushrod configured for engagement with the at least one guide roller shaft at a first end and a cam shaft at a second end of the at least one pushrod; and
a handle coupled to the cam shaft, wherein operation of the handle causes the cam shaft to move the at least one pushrod, which engages the at least one guide roller shaft, biasing the at least one guide roller shaft toward the engaged configuration.

16. A wall saw comprising
a saw motor;
a track; and
a saw attachment mechanism configured to removably affix the saw motor to the track, the saw attachment mechanism including:
at least one guide roller shaft pivotally connected to a saw attachment mechanism body; wherein of the at least one guide roller shaft is configured to pivot into an engaged configuration or disengaged configuration, wherein a pivot axis of the at least one roller shaft is perpendicular to a longitudinal axis of the at least one roller shaft;
at least one guide roller configured for releasable engagement with the track, rotatable connected to a respective at least one guide roller shaft;
at least one pushrod configured for engagement with one of the at least one guide roller shaft at a first end and a cam shaft at a second end of the at least one pushrod; and
a handle coupled to the cam shaft, wherein operation of the handle causes the cam shaft to move the at least one pushrod, which engages the at least one guide roller shaft, biasing the at least one guide roller shaft toward the engaged configuration.

Assignees

• Lindqvist Anders
• Husqvarna Ab

Inventors

• Lindqvist Anders

Classifications

• Y10T403/32254

  Lockable at fixed position · CPC title

• B28D1/045

  Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut · CPC title

• B23D47/02 Primary

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

• B23D45/027

  the saw carriage being mounted on a carriage, e.g. gantry-type sawing machines · CPC title

• Y10T83/768

  Rotatable disc tool pair or tool and carrier · CPC title