Saw wire

• US 6,446,621 B1
• Filed: 07/20/2000
• Issued: 09/10/2002
• Est. Priority Date: 01/21/1998
• Status: Expired due to Fees

• Current Assignee: Hagby Asahi AB
• Original Assignee: Hagby Asahi AB
• Inventors: Svensson, Anders
• Primary Examiner(s): NGUYEN, GEORGE BINH MINH
• Application Number:
  US09/621,286
• Time in Patent Office: 782 Days
• Field of Search: 125/21, 125/22, 838/30--32, 303/81, 451/298
• US Class Current: 125/21
• CPC Class Codes: B23D 57/0015 hand-held or hand-operated
• CPC Class Codes: B23D 61/185 Saw wires; Saw cables; Twisted saw strips
• CPC Class Codes: B28D 1/08 with saw-blades of endless cutter-type, e.g. chain saws , i.e. saw chains, strap saws B28D1/10 takes precedence
• CPC Class Codes: Y10T 83/909 Cutter assemblage or cutter element therefor [e.g., chain saw chain]
• CPC Class Codes: Y10T 83/913 With means permitting removal of cutter element

Abstract

A saw wire according to the invention has two parallel wire strings having a number of saw elements evenly distributed along the wire strings. A saw element includes a platform and a cutting plate. The platform has grooves intended to receive respective parallel wire strings and a groove which is open towards the bottom to receive a driving wheel and a pulley.

Claims

1. A saw wire for a motor saw having an extending saw blade and including a pulley and a driving wheel around which the saw wire is arranged and carries several cutting elements which are wider than the saw blade and evenly distributed along the saw wire, the saw wire comprising:

two parallel, endless wire strings between which are platforms carried by the wires and on upper surfaces of said wires carry cutting plates,

each of the platforms includes a pair of grooves formed in opposing lateral sides thereof within which respective wire strings extend so that the wire strings are positioned at a distance from each other, one outside each side surface plane of the pulley and the driving wheel,

the platforms having bottom surfaces containing grooves intended to receive outer circumferences of the pulley and the driving wheel,

the grooves having smooth peripheries.

2. A saw for stone or concrete using the saw wire of claim 1, wherein the pulley and the driving wheel have smooth, circular circumferences which contact the saw wire by intrusion into the groove within each cutting element of the saw wire.

3. A saw blade comprising:

a pair of parallel spaced endless wire strings;

a plurality of cutting elements positioned generally equally spaced from one another along the pair of wire strings;

each cutting element including a platform having a pair of laterally outwardly facing grooves formed within respective opposing lateral sides thereof, the pair of wire strings extending through respective laterally outwardly facing grooves, and a cutting plate connected to a side of the platform generally parallel to the wire strings; and

a filler disposed between adjacent platforms configured to substantially maintain the relative positions of the adjacent platforms along the pair of wire strings.

4. The saw blade according to claim 3, wherein each cutting plate is a generally flat plate having a width slightly larger than a width of the respective platform.

5. The saw blade according to claim 3, wherein the filler is a resilient polymer material.

6. The saw blade according to claim 3, wherein each platform includes a generally vertically extending groove extending therethrough generally between and parallel to the laterally outwardly facing grooves and extending within the platform to an extent therethrough substantially past the pair of laterally outwardly facing grooves.

7. The saw blade according to claim 6, wherein the side of the platform on which the cutting plate is connected is opposite a side within which the generally extending groove is formed.

8. A saw comprising:

a pair of spaced pulleys having a substantially smooth peripheral surface;

a saw blade extending between the pair of pulleys, the saw blade including a pair of parallel spaced endless wire strings;

a plurality of cutting elements positioned generally equally spaced from one another along the pair of wire strings;

each cutting element including a platform having a pair of laterally outwardly facing grooves formed within respective opposing lateral sides thereof, the pair of wire strings extending through respective laterally outwardly facing grooves, and a cutting plate connected to a side of the platform generally parallel to the wire strings;

a filler disposed between adjacent platforms configured to substantially maintain the relative positions of the adjacent platforms along the pair of wire strings.

9. The saw according to claim 8, wherein each cutting plate is a generally flat plate having a width slightly larger than a width of the respective platform.

10. The saw according to claim 8, wherein the filler is a resilient polymer material.

11. The saw according to claim 8, wherein each platform includes a generally vertically extending groove extending therethrough generally between and parallel to the laterally outwardly facing grooves and extending within the platform to an extent therethrough substantially past the pair of laterally outwardly facing grooves, and wherein an outer peripheral portion of each pulley is engageable within the vertically extending groove of each platform, such that the pair of wire strings are disposed substantially within a peripheral extent of each pulley.

12. The saw according to claim 11, wherein the side of the platform on which the cutting plate is connected is opposite a side within which the generally extending groove is formed.