Blade honing apparatus and cutting apparatus incorporating same

Patent metadata

Field	Value
Publication number	US-9227288-B2
Application number	US-201313858139-A
Country	US
Kind code	B2
Filing date	Apr 8, 2013
Priority date	Mar 15, 2013
Publication date	Jan 5, 2016
Grant date	Jan 5, 2016

Abstract

A honing apparatus includes a sharpening stone that has a sharpening surface configured to sharpen the edge of the blade upon engaging contact with the edge of the blade. A frame is operatively coupled to the sharpening stone, and a weight element is supported by the frame and positioned so as to urge the sharpening stone toward the edge of the blade. The frame may be pivotally coupled to a fixed element at a pivoting location, and the weight element may be positioned so as to create a moment about the pivoting location, with the moment urging the sharpening stone toward the edge of the blade.

First claim

What is claimed is:

1. A honing apparatus for use with an edge of a running blade, comprising:
a sharpening stone having a sharpening surface configured to sharpen the edge of the blade upon engaging contact therewith;
a frame operatively coupled to said sharpening stone, wherein said frame is pivotally coupled to a fixed element at a pivoting location;
a weight element supported by said frame and positioned so as to rotate said frame and thereby urge said sharpening stone toward the edge of the blade, and
a linkage coupled to said frame and to said sharpening stone and disposed between said frame and said sharpening stone, said weight element urging said sharpening stone toward the edge of the blade through said linkage.

2. The apparatus of claim 1 , wherein:
said weight element is positioned so as to create a moment about said pivoting location, the moment urging said sharpening stone toward the edge of the blade.

3. The apparatus of claim 1 , wherein said frame is generally D-shaped.

4. The apparatus of claim 1 , wherein said frame includes a generally horizontally-oriented member supporting said weight element.

5. The apparatus of claim 1 , wherein said weight element has a plurality of available positions respectively corresponding to a plurality of available forces for urging said sharpening stone toward the edge of the blade.

6. The apparatus of claim 5 , further comprising:
a scale associated with said frame and providing a measurable reference for each of said plurality of available positions.

7. The apparatus of claim 1 , wherein
said weight element exerts an urging force on said sharpening stone in a direction along a longitudinal axis of said linkage.

8. A honing apparatus for use with an edge of a running blade, comprising:
a sharpening stone having a sharpening surface configured to sharpen the edge of the blade upon engaging contact therewith;
a frame operatively coupled to said sharpening stone;
a weight element supported by said frame and positioned so as to urge said sharpening stone toward the edge of the blade; and
a linkage coupled to said frame and to said sharpening stone and disposed between said frame and said sharpening stone, said weight element urging said sharpening stone toward the edge of the blade through said linkage,
wherein:
said frame is pivotally coupled to a fixed element at a first pivoting location, and
said linkage is pivotally coupled to said fixed element at a second pivoting location offset from said first pivoting location.

9. The apparatus of claim 8 , wherein said fixed element is a generally vertically-oriented plate.

10. The apparatus of claim 1 , wherein said sharpening stone is configured to rotate by virtue of engaging contact with the edge of the blade.

11. A honing apparatus for use with an edge of a running blade, comprising:
a sharpening stone having a sharpening surface configured to sharpen the edge of the blade upon engaging contact therewith;
a frame operatively coupled to said sharpening stone, wherein said frame is pivotally coupled to a fixed element at a pivoting location;
a weight element supported by said frame and positioned so as to rotate said frame and thereby urge said sharpening stone toward the edge of the blade, and
a locking feature for fixing a position of said frame relative to said fixed element.

12. The apparatus of claim 11 , wherein said locking feature has at least two available settings corresponding to two available discrete fixed positions of said frame relative to said fixed element.

13. A cutting apparatus comprising:
a blade having a first edge, movement thereof being effective to cut through a material in contact therewith; and
a first honing apparatus for sharpening said first edge, said first honing apparatus including:
(a) a sharpening stone having a sharpening surface configured to sharpen said first edge of said blade upon engaging contact therewith,
(b) a frame operatively coupled to said sharpening stone, wherein said frame is pivotally coupled to a fixed element at a pivoting location,
(c) a weight element supported by said frame and positioned so as to rotate said frame and thereby urge said sharpening stone toward said first edge of said blade, and
(d) a linkage coupled to said frame and to said sharpening stone and disposed between said frame and said sharpening stone, said weight element urging said sharpening stone toward said first edge of said blade through said linkage.

14. The cutting apparatus of claim 13 , wherein said blade has a second edge disposed opposite said first edge, movement of said second edge being effective to cut through a material in contact therewith, the cutting apparatus further comprising:
a second honing apparatus for sharpening said second edge of said blade, said second honing apparatus including:
(e) a second sharpening stone having a sharpening surface configured to sharpen said second edge of said blade upon engaging contact therewith,
(f) a second frame operatively coupled to said second sharpening stone, and
(g) a second weight element supported by said second frame and positioned so as to urge said second sharpening stone toward said second edge of said blade.

15. The cutting apparatus of claim 13 , wherein said blade has an elongate shape, said first edge being configured to move in a direction generally parallel to a longitudinal axis of said blade.

16. The cutting apparatus of claim 15 , wherein said blade has a generally vertical orientation.

17. The cutting apparatus of claim 15 , wherein said blade has a generally horizontal orientation.

18. The cutting apparatus of claim 13 , wherein said blade has a disc shape, said first edge being configured to rotate generally about a center of said blade.

19. The apparatus of claim 8 , wherein said linkage is pivotally coupled to said frame.

20. A honing apparatus for use with an edge of a running blade, comprising:
a sharpening stone having a sharpening surface configured to sharpen the edge of the blade upon engaging contact therewith;
a frame operatively coupled to said sharpening stone;
a weight element supported by said frame and positioned so as to urge said sharpening stone toward the edge of the blade; and
a linkage pivotally coupled to said frame and coupled to said sharpening stone, said linkage being between said frame and said sharpening stone, said weight element urging, with an urging force, said sharpening stone toward the edge of the blade through said linkage, said urging force being in a direction along a longitudinal axis of said linkage,
wherein said frame is pivotally coupled to a fixed element at a first pivoting location, said linkage is pivotally coupled to said fixed element at a second pivoting location offset from said first pivoting location, and
wherein said weight element is positioned so as to create a moment about said first pivoting location, the moment urging said sharpening stone toward the edge of the blade through said linkage.

21. A cutting apparatus comprising:
a blade having a first edge, movement thereof being effective to cut through a material in contact therewith; and
a first honing apparatus for sharpening said first edge, said first honing apparatus including:
(a) a sharpening stone having a sharpening surface configured to sharpen said first edge of said blade upon engaging contact therewith,
(b) a frame operatively coupled to said sharpening stone, and
(c) a weight element supported by said frame and positioned so as

Assignees

• Sca Hygiene Prod Ab

Inventors

• Arndt Arno Robert
• King Lon Martin

Classifications

• B24B27/0076

  grinding machines comprising two or more grinding tools · CPC title

• B24B3/36 Primary

  of cutting blades (B24B3/58 takes precedence) · CPC title

• B24B3/46

  of disc blades · CPC title

• B24B3/368 Primary

  installed as an accessory on another machine (B26D7/12 takes precedence) · CPC title

• B24B3/361

  of reciprocating blades · CPC title