Tile or masonry saw assembly with improved blade wetting capability

Patent metadata

Field	Value
Publication number	US-9975273-B2
Application number	US-201715460759-A
Country	US
Kind code	B2
Filing date	Mar 16, 2017
Priority date	Jun 18, 2014
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

A tile or masonry saw assembly may include a saw and a frame. The saw includes a motor operable to turn a blade of a blade assembly to cut a workpiece. The blade assembly is internally wetted during operation by nozzles disposed on opposing sides of the blade to provide water onto the blade within a blade guard configured to shield a portion of the blade. The frame is operably coupled to the saw to support the workpiece. The frame supports a water collecting system for collecting the water. The water collecting system includes a water tank that is removable from the frame.

First claim

The invention claimed is:

1. A tile or masonry saw assembly comprising:
a saw including a motor operable to turn a blade of a blade assembly to cut a workpiece, the blade assembly being internally wetted during operation by nozzles disposed on opposing sides of the blade to provide water onto the blade within a blade guard configured to shield a portion of the blade; and
a frame operably coupled to the saw to support the workpiece, the frame supporting a water collecting system for collecting the water, wherein the water collecting system comprises a water tank that is removable from the frame, and wherein the water tank is defined by container walls on at least six sides.

2. The saw assembly of claim 1 , wherein the water tank further comprises a pump housing portion configured to interface with a pump to provide water from the water tank to the nozzles.

3. The saw assembly of claim 2 , wherein the pump housing portion is structured to prevent sediment from entering the pump housing portion.

4. The saw assembly of claim 1 , wherein the water tank lies in a horizontal orientation in the frame, and wherein the water tank is provided with a removable cap so as to be finable, and wherein the water tank provides water to the nozzles while provided in the frame in the horizontal orientation.

5. The saw assembly of claim 4 , wherein the water tank is provided with the removable cap so as to be also fillable while removed from the frame in a vertical orientation so that the water tank has a suitable water level when inserted into the frame in the horizontal orientation.

6. The saw assembly of claim 1 , wherein the water collecting system further comprises a water collector disposed proximate to the water tank to collect water directed away from the blade assembly and to provide the collected water to the water tank.

7. The saw assembly of claim 6 , wherein the water collector defines a blade aperture through which the blade extends.

8. The saw assembly of claim 6 , wherein the water collector is defined as a single, unitary piece removable from the blade guard.

9. The saw assembly of claim 6 , wherein the water collector is defined by separate channel members.

10. The saw assembly of claim 9 , wherein the separate channel members are integrated into respective ones of a first blade guard member and a second blade guard member that form the blade guard.

11. The saw assembly of claim 6 , wherein the nozzles are provided proximate to a first end of the water collector that is closest to an operator and are positioned to extend into a portion of the blade guard and to point toward the blade at an upward angle relative to an axis of rotation of the blade.

12. The saw assembly of claim 11 , wherein the nozzles are arranged at a distance less than 5 mm from the blade, and are directed at an angle greater than 15 degrees relative to the axis of rotation of the blade.

13. The saw assembly of claim 11 , wherein the water collector directs the water through channels to an outlet disposed at a second end of the water collector.

14. The saw assembly of claim 1 , wherein the blade comprises cutouts reaching inwardly from a perimeter of the blade, and wherein the nozzles are arranged so that the jets from the nozzles hit the cutouts to form a mist.

15. The saw assembly of claim 1 , further comprising a rotating splash guard pivotally coupled to the blade guard to direct water toward the water collecting system from an outlet.

16. The saw assembly of claim 1 , wherein the tile or masonry saw assembly is a hand held cut off machine and the motor is either of an electric, battery-electric, hydraulic, pneumatic or an internal combustion engine.

17. The saw assembly of claim 1 , wherein the tile or masonry saw assembly is a floor or road saw, having at least three wheels for movement on a surface to be cut by the blade, and the motor is either of an electric, battery-electric, hydraulic, pneumatic or an internal combustion engine.

18. The saw assembly of claim 1 , wherein at least one surface of the water tank is configured to direct water thereon to be collected in the water tank.

19. A tile or masonry saw assembly comprising:
a saw including a motor operable to turn a blade of a blade assembly to cut a workpiece, the blade assembly being internally wetted during operation by nozzles disposed on opposing sides of the blade to provide water onto the blade within a blade guard configured to shield a portion of the blade; and
a frame operably coupled to the saw to support the workpiece, the frame supporting a water collecting system for collecting the water, wherein the water collecting system comprises a water tank that is removable from the frame, wherein a removable cap is arranged proximate to a raised portion of a bottom surface of the water tank to enable the water tank to stand vertically when the cap is engaged with the water tank, and to enable the water tank to be emptied of water when the cap is removed.

20. The saw assembly of claim 1 , wherein a handle is formed at a portion of the water tank to facilitate mounting or dismounting the water tank from the frame.

Assignees

• Husqvarna Ab

Inventors

• Vikholm Jens
• Küsel Robert
• Hellberg Tommy
• Karlsson Pontus
• Svensson Magnus
• Elmestrand Karl
• Andersson Johan

Classifications

• B28D7/02 Primary

  for removing or laying dust, e.g. by spraying liquids; for cooling work · CPC title

• B28D1/045

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

• B23D59/02

  Devices for lubricating or cooling circular saw blades · CPC title

• B28D1/044

  the saw blade being movable on slide ways (B28D1/043 takes precedence) · CPC title

• B28D1/042

  the saw blade being carried by a pivoted lever (B28D1/043 and B28D1/044 take precedence) · CPC title