WO2006045072A3 - Power tool anti-kickback system with rotational rate sensor - Google Patents

Power tool anti-kickback system with rotational rate sensor Download PDF

Info

Publication number
WO2006045072A3
WO2006045072A3 PCT/US2005/037976 US2005037976W WO2006045072A3 WO 2006045072 A3 WO2006045072 A3 WO 2006045072A3 US 2005037976 W US2005037976 W US 2005037976W WO 2006045072 A3 WO2006045072 A3 WO 2006045072A3
Authority
WO
WIPO (PCT)
Prior art keywords
power tool
rate sensor
rotational rate
lateral displacement
control system
Prior art date
Application number
PCT/US2005/037976
Other languages
French (fr)
Other versions
WO2006045072A2 (en
WO2006045072B1 (en
Inventor
Qiang Zhang
Uday Deshpande
Original Assignee
Black & Decker Inc
Qiang Zhang
Uday Deshpande
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
Application filed by Black & Decker Inc, Qiang Zhang, Uday Deshpande filed Critical Black & Decker Inc
Priority to BRPI0516762-0A priority Critical patent/BRPI0516762A/en
Priority to EP05817436A priority patent/EP1802845B1/en
Priority to AT05817436T priority patent/ATE536492T1/en
Priority to AU2005295189A priority patent/AU2005295189A1/en
Priority to JP2007538086A priority patent/JP2008516789A/en
Publication of WO2006045072A2 publication Critical patent/WO2006045072A2/en
Publication of WO2006045072A3 publication Critical patent/WO2006045072A3/en
Publication of WO2006045072B1 publication Critical patent/WO2006045072B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/001—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Abstract

A control system is provided for use in a power tool. The control system includes: a rotational rate sensor having a resonating mass and a controller electrically connected to the rotational rate sensor. The rotational rate sensor detects lateral displacement of the resonating mass and generates a signal indicative of the detected lateral displacement, such that the lateral displacement is directly proportional to a rotational speed at which the power tool rotates about an axis of the rotary shaft. Based on the generated signal, the controller initiates a protective operation to avoid further undesirable rotation of the power tool. The control scheme employed by the power tool may initiate different protective operations for different tool conditions.
PCT/US2005/037976 2004-10-20 2005-10-20 Power tool anti-kickback system with rotational rate sensor WO2006045072A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BRPI0516762-0A BRPI0516762A (en) 2004-10-20 2005-10-20 mechanical tool anti-rejection system with rotational speed sensor
EP05817436A EP1802845B1 (en) 2004-10-20 2005-10-20 Power tool anti-kickback system with rotational rate sensor
AT05817436T ATE536492T1 (en) 2004-10-20 2005-10-20 POWER-DRIVEN ANTI-KACKBACK SYSTEM WITH TACHOMETER
AU2005295189A AU2005295189A1 (en) 2004-10-20 2005-10-20 Power tool anti-kickback system with rotational rate sensor
JP2007538086A JP2008516789A (en) 2004-10-20 2005-10-20 Power tool kickback prevention system with rotational speed sensor

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US62028304P 2004-10-20 2004-10-20
US60/620,283 2004-10-20
US67569205P 2005-04-28 2005-04-28
US60/675,692 2005-04-28
US11/254,146 US7410006B2 (en) 2004-10-20 2005-10-19 Power tool anti-kickback system with rotational rate sensor
US11/254,146 2005-10-19

Publications (3)

Publication Number Publication Date
WO2006045072A2 WO2006045072A2 (en) 2006-04-27
WO2006045072A3 true WO2006045072A3 (en) 2007-03-15
WO2006045072B1 WO2006045072B1 (en) 2007-05-31

Family

ID=36179532

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/037976 WO2006045072A2 (en) 2004-10-20 2005-10-20 Power tool anti-kickback system with rotational rate sensor

Country Status (7)

Country Link
US (1) US7410006B2 (en)
EP (1) EP1802845B1 (en)
JP (1) JP2008516789A (en)
AT (1) ATE536492T1 (en)
AU (1) AU2005295189A1 (en)
BR (1) BRPI0516762A (en)
WO (1) WO2006045072A2 (en)

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Also Published As

Publication number Publication date
WO2006045072A2 (en) 2006-04-27
EP1802845B1 (en) 2011-12-07
EP1802845A4 (en) 2010-05-26
ATE536492T1 (en) 2011-12-15
US20060081386A1 (en) 2006-04-20
BRPI0516762A (en) 2008-09-16
WO2006045072B1 (en) 2007-05-31
US7410006B2 (en) 2008-08-12
JP2008516789A (en) 2008-05-22
AU2005295189A1 (en) 2006-04-27
EP1802845A2 (en) 2007-07-04

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