WO2005096949B1 - Tooth form design for reciprocating saw blade - Google Patents

Tooth form design for reciprocating saw blade

Info

Publication number
WO2005096949B1
WO2005096949B1 PCT/US2005/009879 US2005009879W WO2005096949B1 WO 2005096949 B1 WO2005096949 B1 WO 2005096949B1 US 2005009879 W US2005009879 W US 2005009879W WO 2005096949 B1 WO2005096949 B1 WO 2005096949B1
Authority
WO
WIPO (PCT)
Prior art keywords
angle
tooth
relief
face
gullet
Prior art date
Application number
PCT/US2005/009879
Other languages
French (fr)
Other versions
WO2005096949A2 (en
WO2005096949A3 (en
Inventor
Rickey J Thomas
Leonard R Baublitz
David S Bruner
Malek George
Markus Rompel
Russell J Bohart
Original Assignee
Black & Decker Inc
Rickey J Thomas
Leonard R Baublitz
David S Bruner
Malek George
Markus Rompel
Russell J Bohart
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/023,122 external-priority patent/US7658136B2/en
Priority claimed from US11/023,097 external-priority patent/US7225714B2/en
Priority claimed from US11/088,266 external-priority patent/US20050211046A1/en
Application filed by Black & Decker Inc, Rickey J Thomas, Leonard R Baublitz, David S Bruner, Malek George, Markus Rompel, Russell J Bohart filed Critical Black & Decker Inc
Priority to EP05731590A priority Critical patent/EP1727470A4/en
Priority to AU2005231308A priority patent/AU2005231308A1/en
Publication of WO2005096949A2 publication Critical patent/WO2005096949A2/en
Publication of WO2005096949A3 publication Critical patent/WO2005096949A3/en
Publication of WO2005096949B1 publication Critical patent/WO2005096949B1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/04Drills for trepanning
    • B23B51/0426Drills for trepanning with centering devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/12Straight saw blades; Strap saw blades
    • B23D61/121Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet

Abstract

A reciprocating saw has a tooth form that decreases the cutting time of the saw blade and extends the life of the saw blade. The tooth height is longer than conventional metal cutting reciprocating saws. Also, the tooth form has a larger gullet. The tooth rake angle remains substantially constant during the life of the saw blade.

Claims

AMENDED CLAIMS
[received by the International Bureau on 08 June 2007 (08.06.2007)]
1 , A reciprocating saw blade tooth form comprising: a rake face and a relief face, said rake face intersecting said relief face at a tip of said tooth form; said rake face extending from said tip to a first gullet, said rake face being continuous with said gullet; said relief face extending from said tip to a second gullet, said relief face continuous with said second gullet, said relief face being on an angle with respect to a horizontal plane at the Intersection of said relief face and said rake face, said angle defining a relief angle; said rake face being on an angle with respect to a vertical plane at the intersection of said relief face and said rake face, said angle defining a rake angle; an included angle is defined as the angle between the relief face and the rake face; a tooth depth is a length from said tip of the tooth to a curved portion of the gullet; a maximum gullet depth is a distance from said tip to the bottom of the first gullet; a pitch length is a distance between adjacent tips; said relief angle being between about 38° to about 50°, said included angle being from about 40° to about 50° and said tooth depth being about 30% to about 70% of the maximum gullet depth and about 18% to about 77% of the pitch length wherein said- tooth form enables better chip ejection which enables faster cutting of the blade; and said first and second gullets are defined by a radius, the radius has a length having a radius of about 52% to about 55% of the maximum gullet depth.
2. Cancelled
3. The reciprocating saw blade according to Claim 1 wherein said rake face has an angle from about 0° to about 3°.
4. The reciprocating saw blade according to Claim 1 wherein said relief angle is between about 38C to about 42°. said included angle from about
45° to 50°, said tooth depth about 30% to about 47% of a maximum gullet and about 18% to 26% of a pitch length.
5. The reciprocating saw blade according to Claim 1 wherein said relief angle is between about 40° to about 50°, said included angle from about
40° to 50°, said tooth depth about 30% to about 70% of a maximum gullet and about 50% to 77% of a pitch length.
6. A reciprocating saw blade having a plurality of teeth, comprising: said teeth each having a tooth form including: a rake face and a relief face, said rake face intersecting said relief face at a tip of said tooth form; said rake face extending from said tip to a first gullet, said rake face being continuous with said gullet; said relief face extending from said tip to a second gullet, said relief face continuous with said second gullet, said relief face being on an angle with respect to a horizontal plane at the intersection of said relief face and said rake face, said angle defining a relief angle; said rake face being on an angle with respect to a vertical plane at the intersection of said relief face and said rake face, said angle defining a rake angle; an included angle is defined as the angle between the relief face and the rake face; a tooth depth is a length from said tip of the tooth to a curved portion of the gullet; a maximum gullet depth is a distance from said tip to the bottom of the first gullet; a pitch length is a distance between adjacent tips; said relief angle being between about 38° to about 50°, said included angle being from about 40° to about 50° and said tooth depth being about 30% to about 70% of the maximum gullet depth and about 18% to about 77% of the pitch length wherein said tooth form enables better chip ejection which enables faster cutting of the blade; and said first and second gullets are defined by a radius, the radius has a length having a radius of about 52% to about 55% of the maximum gullet depth.
7. The reciprocating saw blade according to Claim 6 wherein the saw blade includes set and unset teeth.
8. The reciprocating saw blade according to Claim 6 wherein said saw blade includes a raker tooth.
9. A saw blade comprising: teeth having first and second repeating tooth form; said first tooth form having a first gullet continuous with a rake face on angle from about 0° to about 12°; a relief face adjacent said rake face forming a cutting edge; said relief face at an angle of from about 30° to about 55°, and said relief face, said gullet having a desired depth such that said first tooth form has a first height; said second tooth form having a second gullet continuous with said first relief face and a second rake face, said second rake face defining a rake angle from about 0° to about 12"; and a second relief face adjacent said rake face forming a cutting edge, said second relief face on an angle of about 30° to about 55°, and said second gullet having a desired depth such that said second tooth from has a second tooth height, wherein said second tooth height is greater than said first tooth height.
10. The saw blade according to Claim 9, wherein said first and second relief angle are the same.
11. The saw blade according to Claim 9, wherein said first and second rake angles are the same.
12. The saw blade according to Claim 9, wherein said first and second tooth form cutting edges are at substantially from same height.
13. The saw blade according to Claim 9. wherein said first and second tooth form a repeating pattern.
14. The saw blade according to Claim 13, wherein said repeating first and second tooth forms may be set or unset.
15. The saw blade according to Claim 14, wherein said repeating first and second tooth forms are set left right left right.
16. The saw blade according to Claim 9, wherein said repeating first and second tooth forms are set inside, outside separated by one or more unset raker teeth.
17. The saw blade according to Claim 9, wherein said first tooth and second tooth rake face angles are between 0° to 3° and said relief angles are about 35°. , .
18. The saw blade according to Claim 9, wherein said first tooth and second tooth rake face angles are between 5° to 12° and said relief angles are about 35°.
PCT/US2005/009879 2004-03-26 2005-03-24 Tooth form design for reciprocating saw blade WO2005096949A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP05731590A EP1727470A4 (en) 2004-03-26 2005-03-24 Tooth form design for reciprocating saw blade
AU2005231308A AU2005231308A1 (en) 2004-03-26 2005-03-24 Tooth form design for reciprocating saw blade

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US55743904P 2004-03-26 2004-03-26
US60/557,439 2004-03-26
US11/023,122 US7658136B2 (en) 2004-12-22 2004-12-22 Hole saw blade
US11/023,097 US7225714B2 (en) 2004-12-22 2004-12-22 Tooth form design for reciprocating saw blade
US11/023,122 2004-12-22
US10/023,097 2004-12-22
US11/088,266 US20050211046A1 (en) 2004-03-26 2005-03-23 Tooth form design for reciprocating saw blade
US11/088,266 2005-03-23

Publications (3)

Publication Number Publication Date
WO2005096949A2 WO2005096949A2 (en) 2005-10-20
WO2005096949A3 WO2005096949A3 (en) 2007-05-31
WO2005096949B1 true WO2005096949B1 (en) 2007-08-23

Family

ID=37023226

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/009879 WO2005096949A2 (en) 2004-03-26 2005-03-24 Tooth form design for reciprocating saw blade

Country Status (3)

Country Link
EP (1) EP1727470A4 (en)
AU (1) AU2005231308A1 (en)
WO (1) WO2005096949A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2560780B1 (en) 2010-04-22 2016-07-20 Milwaukee Electric Tool Corporation Saw blade
US10189099B2 (en) 2010-04-22 2019-01-29 Milwaukee Electric Tool Corporation Saw Blade
DE102012205041A1 (en) * 2012-03-29 2013-10-02 Robert Bosch Gmbh Sawing tool for a machine tool
US10363619B2 (en) * 2015-11-02 2019-07-30 Black & Decker Inc. Reciprocating saw blade
CN110650829A (en) * 2017-05-16 2020-01-03 米沃奇电动工具公司 Saw blade
USD835954S1 (en) 2017-05-16 2018-12-18 Milwaukee Electric Tool Corporation Saw blade
CN110871295A (en) * 2018-08-31 2020-03-10 博世电动工具(中国)有限公司 Hole saw and device for making holes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072164A (en) * 1959-12-28 1963-01-08 Southern Saw Service Inc Saw blade
US3374815A (en) * 1965-08-30 1968-03-26 Millers Falls Co Woodcutting saw blade
CA1277573C (en) * 1985-04-03 1990-12-11 Sumio Yoshida Saw blade
US5018421A (en) * 1988-04-07 1991-05-28 Armstrong-Blum Manufacturing Company, Ltd. Saw blade tooth geometry
DE19501019B4 (en) * 1995-01-14 2005-11-24 Scintilla Ag Saw blade for hand tool machines
US6167792B1 (en) * 1995-03-23 2001-01-02 American Saw & Mfg. Company Tooth form for a saw blade
US5603252A (en) * 1995-08-28 1997-02-18 Sandvik Ab Saw blade
US6276248B1 (en) * 1999-11-05 2001-08-21 American Saw & Manufacturing Company Band saw blade having reduced noise and uniform tooth loading characteristics

Also Published As

Publication number Publication date
WO2005096949A2 (en) 2005-10-20
WO2005096949A3 (en) 2007-05-31
EP1727470A4 (en) 2010-09-15
EP1727470A2 (en) 2006-12-06
AU2005231308A1 (en) 2005-10-20

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