US20050257385A1 - Mode selection mechanism for power tool, and power tool incorporating such mechanism - Google Patents

Mode selection mechanism for power tool, and power tool incorporating such mechanism Download PDF

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Publication number
US20050257385A1
US20050257385A1 US10/902,750 US90275004A US2005257385A1 US 20050257385 A1 US20050257385 A1 US 20050257385A1 US 90275004 A US90275004 A US 90275004A US 2005257385 A1 US2005257385 A1 US 2005257385A1
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US
United States
Prior art keywords
output shaft
longitudinal axis
mode selection
jigsaw
locking member
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US10/902,750
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English (en)
Inventor
Andrew Walker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Black and Decker Inc
Original Assignee
Black and Decker Inc
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 and Decker Inc filed Critical Black and Decker Inc
Assigned to BLACK & DECKER, INC. reassignment BLACK & DECKER, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WALKER, ANDREW
Publication of US20050257385A1 publication Critical patent/US20050257385A1/en
Priority to US11/837,624 priority Critical patent/US7509744B2/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
    • B23D49/10—Hand-held or hand-operated sawing devices with straight saw blades
    • B23D49/16—Hand-held or hand-operated sawing devices with straight saw blades actuated by electric or magnetic power or prime movers
    • B23D49/162—Pad sawing devices
    • B23D49/167—Pad sawing devices with means to adjust the guide plate or with means to adjust the plane in which the saw blade moves
    • 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
    • B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
    • B23D49/10—Hand-held or hand-operated sawing devices with straight saw blades
    • B23D49/16—Hand-held or hand-operated sawing devices with straight saw blades actuated by electric or magnetic power or prime movers
    • 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
    • B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
    • B23D49/10—Hand-held or hand-operated sawing devices with straight saw blades
    • B23D49/16—Hand-held or hand-operated sawing devices with straight saw blades actuated by electric or magnetic power or prime movers
    • B23D49/162—Pad sawing devices
    • B23D49/165—Pad sawing devices with means to move the saw blades in an orbital path

Definitions

  • the present invention relates to a mode selection mechanism for a power tool, and relates particularly, but not exclusively, to a mode selection mechanism for preventing simultaneous actuation of a scrolling mode of a jigsaw (i.e. in which an output shaft supporting a jigsaw blade can rotate about its longitudinal axis relative to the jigsaw housing) and an orbital mode of a jigsaw (i.e. in which the output shaft is pivotable relative to the housing about an axis transverse to its longitudinal axis, so that an oscillating motion is superimposed on the axial reciprocating motion of the jigsaw blade).
  • the invention also relates to a power tool incorporating such a mode selection mechanism.
  • EP0158325 discloses a jigsaw having (i) a scrolling mode in which an output shaft and jigsaw blade can rotate about a longitudinal axis of the output shaft to enable cutting of smaller radii of curvature or more intricate types of cut than conventional jigsaws in which the jigsaw blade only faces forwards, and (ii) an orbital mode in which the output shaft oscillates about a pivot in a fore and aft direction to assist the cutting action of the jigsaw blade.
  • a mode selection knob moves a carriage between an upper position in the orbital mode, in which rotation of an output shaft of the jigsaw about its longitudinal axis is prevented, and a lower position in the scrolling mode, in which pivoting of the output shaft about an axis transverse to its longitudinal axis is prevented.
  • this jigsaw suffers from the disadvantage that the carriage cannot be used to simultaneously disable the scrolling and orbital modes, as a result of which a further actuator mechanism is required. This in turn has the disadvantage of increasing the cost of production of the jigsaw and making the jigsaw less easy to use.
  • Preferred embodiments of the present invention seek to overcome the above disadvantages of the prior art.
  • a mode selection apparatus for a power tool having a tool housing, a motor arranged in the tool housing, and an output shaft adapted to be driven in a reciprocating motion relative to the tool housing by means of the motor and to support a working member of the tool for reciprocating motion of the working member relative to the tool housing, the mode selection apparatus comprising:
  • this provides the advantage of enabling three modes of a tool incorporating the mode selection apparatus, for example scrolling mode, orbital mode and conventional mode of a jigsaw, to be selected by means of a single actuator, which in turn makes the tool more convenient to operate.
  • At least one said locking member may be adapted to engage a first actuator member on said tool housing in said first and second positions to prevent rotation of said first actuator member relative to the tool housing.
  • At least one said locking member may be adapted to engage at least one respective slot and/or protrusion on the first actuator member.
  • At least one said mode selection member may have at least one respective cam surface for causing the output shaft to move out of engagement with the drive mechanism to prevent the output shaft from pivoting about the pivot axis transverse to said longitudinal axis.
  • At least said one cam surface may be a groove.
  • At least one said cam surface may be a protrusion.
  • At least one said mode selection member may be adapted to rotate relative to the tool housing.
  • the apparatus may further comprise at least one first actuator member for enabling rotation of the output shaft about said longitudinal axis.
  • the apparatus may further comprise at least one second actuator member for actuating at least one said mode selection member for moving at least one said locking member between first, second and third positions thereof.
  • a power tool having a tool housing, a motor arranged in the tool housing, an output shaft adapted to be driven in a reciprocating motion relative to the tool housing by means of the motor and to support a working member of the tool for reciprocating motion of the working member relative to the tool housing, and a mode selection apparatus as defined above.
  • the power tool may be a jigsaw.
  • FIG. 1 is a cross-sectional elevation view of a jigsaw embodying the present invention
  • FIG. 2 is a perspective view of a blade support assembly, jigsaw blade and scrolling knob of the jigsaw of FIG. 1 ;
  • FIG. 3 ( a ) is a perspective view of an upper bearing of the blade support assembly of FIG. 2 ;
  • FIG. 3 ( b ) is a front view of the upper bearing of FIG. 3 ( a );
  • FIG. 3 ( c ) is a top view of the upper bearing of FIG. 3 ( a );
  • FIG. 3 ( d ) is a side view of the upper bearing of FIG. 3 ( a );
  • FIG. 3 ( e ) is a bottom view of the upper bearing of FIG. 3 ( a );
  • FIG. 3 ( f ) is a side cross sectional view of the upper bearing of FIG. 3 ( a );
  • FIG. 4 is a side view of the blade support assembly, jigsaw blade and scrolling knob of FIG. 2 , together with a drive mechanism of the jigsaw of FIG. 1 , but having an alternative embodiment of scroll selector to the arrangement shown in FIG. 1 ;
  • FIG. 5 ( a ) is a perspective view of the scroller knob and scroller locking mechanism of FIG. 4 in a scrolling mode of the jigsaw;
  • FIG. 5 ( b ) is a perspective view, corresponding to FIG. 5 ( a ) of the scroller knob and scroller locking mechanism in a conventional mode of the jigsaw;
  • FIG. 5 ( c ) is a perspective view, corresponding to FIG. 5 ( a ) of the scroller knob and scroller locking mechanism in an orbital mode of the jigsaw;
  • FIG. 6 ( a ) is a front view of a scotch yoke, output shaft and blade clamp of the blade support assembly of FIG. 2 ;
  • FIG. 6 ( b ) is a perspective view of the scotch yoke, output shaft and blade clamp of FIG. 6 ( a );
  • FIG. 6 ( c ) is a top view of the scotch yoke of FIGS. 6 ( a ) and 6 ( b );
  • FIG. 7 is a perspective view of the blade support assembly of FIG. 2 ;
  • FIG. 8 is a top view of the blade support assembly of FIG. 7 ;
  • FIG. 9 is a rear view of the blade support assembly of FIG. 7 ;
  • FIG. 10 is a side cross sectional view along the line A-A in FIG. 8 ;
  • FIG. 11 is a view along the line B-B in FIG. 10 ;
  • FIG. 12 is an enlarged view of the lower part of the blade support assembly of FIG. 10 when the blade is not cutting a workpiece;
  • FIG. 13 is a view corresponding to FIG. 12 when the blade is cutting a workpiece.
  • a jigsaw 2 has a housing 4 comprising two clam shell halves 6 (only one of which is shown in FIG. 1 ) defining a handle 8 having a trigger switch 10 for operating a motor 12 supplied with electrical power via a cable 14 .
  • a shoe 16 for resting on a workpiece (not shown) is located at a lower part of the housing 4 , and a jigsaw blade 18 ( FIG. 2 ) is attached to the lower end of an output shaft 20 by means of a blade clamp mechanism 22 .
  • the operation of the blade clamp mechanism 22 is not relevant to an understanding of the present invention and will therefore not be described in greater detail herein.
  • the orientation of the shoe 16 is adjustable relative to the housing 4 to enable bevel cutting, and can be fixed by means of a clamping screw 24 operated by a locking mechanism 26 , which is also not relevant to an understanding of the present invention and will therefore not be described in greater detail.
  • the motor 12 drives a shaft 28 which carries a fan 30 .
  • the shaft 28 carries a pinion 36 which meshes with a drive gear 38 mounted about axis 40 , the gear 38 carrying a cam surface 42 on its front face.
  • a cam follower 44 is selectively engageable with cam surface 42 by means of cam portion 46 of scroll selector 48 to operate an orbital mode of the jigsaw in a manner which will be described in greater detail below.
  • the gear 38 also carries an eccentric pin 50 which slidably fits in a slot 52 of scotch yoke mechanism 54 mounted to output shaft 20 .
  • a scroller knob 56 is rotatably mounted to the housing 4 for adjusting the orientation of the blade 18 relative to the housing 4 .
  • the scroller knob 56 has a collar portion 58 having a cruciform bore 60 therein, the purpose of which is described in greater detail below.
  • a blade support assembly 62 has a support housing 64 having trunnions 66 which are received in corresponding recesses (not shown) in housing 4 to enable the assembly 62 to pivot about axis X-X relative to the housing 4 in the orbital mode of the jigsaw.
  • An upper bearing 68 ( FIG.
  • the upper bearing 68 also has a pair of legs 74 which are received in cruciform bore 60 of scroller knob 56 such that the bearing 68 (and therefore the output shaft 20 ) rotates with the scroller knob 56 about axis Y-Y, but limited pivoting movement of the bearing 68 about axis X-X relative to the scroller knob 56 is permitted.
  • a mechanism for selecting between the scrolling, orbital and conventional modes of the jigsaw is shown in detail with reference to FIGS. 4 and 5 .
  • a locking arm 76 is slidably mounted to the housing 4 and is moveable between a lower position, as shown in FIG. 5 ( a ) in which the scroller knob 56 can rotate relative to the housing 4 , and two upper positions shown in FIGS. 5 ( b ) and 5 ( c ) in which an upper end 78 of the locking arm 76 is received in one or more slots 80 in the underside of scroller knob 56 to prevent rotation of the scroller knob 56 about axis Y-Y relative to the housing 4 .
  • the scroll selector 48 is rotatably mounted to the housing 4 and can be rotated by means of a mode selector knob (not shown) on the housing 4 , and a lower end 82 of locking arm 76 has a rounded slot 84 which receives a rounded tooth 86 provided on scroll selector 48 such that rotation of scroll selector 48 relative to the housing 4 causes movement of the locking arm 76 parallel to the axis Y-Y.
  • the scroll selector 48 also carries a cam surface, which is a protrusion 46 in the embodiment of FIG. 1 and a groove 88 in the embodiment of FIGS. 5 ( a ) to 5 ( c ).
  • FIGS. 5 ( a ) to 5 ( c ) in the position shown in FIG. 5 ( a ), the rotational position of scroll selector 48 about axis 90 relative to the housing 4 is such that the upper end 78 of locking arm 76 is not receiving in any of the grooves 80 in scroller knob 56 , as a result of which the scroller knob 56 (and therefore also the output shaft 20 and jigsaw blade 18 ) can rotate about axis Y-Y relative to the housing 4 to permit scrolling motion of the blade 18 .
  • the output shaft 20 is of rectangular cross section along most of its length. This provides the advantage that the ends of the shaft 20 can be non-rotatably mounted to adjacent parts without the need to provide cross pins (which would be necessary in the case of a shaft of circular cross section) through the shaft which would need to fit into slots at least as deep as the distance of travel of the cross pins during reciprocating motion of the shaft 20 . As a result, the parts of the jigsaw at the ends of the shaft 20 can be made of significantly more compact construction than is the case with a shaft of circular cross section.
  • a pair of generally D-shaped inserts 94 are mounted on opposite sides of the shaft 20 to provide that part of the shaft with a partially circular external cross section, and the scotch yoke 54 is rotatably mounted to the shaft 20 by means of circular apertures 96 in upper and lower flanges 98 of the scotch yoke 54 .
  • the scotch yoke 54 is then fixed to the shaft 20 by means of pins 100 through D-shaped inserts 94 and shaft 20 so that the scotch yoke 54 cannot move axially relative to the shaft 20 , but can pivot about relative to the shaft so that the slot 52 of scotch yoke 54 continues to face eccentric pin 50 ( FIG. 1 ) regardless of the orientation of the blade 18 relative to the housing 4 .
  • This enables the blade 18 to be driven in a reciprocating manner when the jigsaw is in the scroller mode.
  • FIG. 7 The support assembly 62 of FIG. 2 is shown in detail in FIGS. 7 to 13 .
  • a lower bearing 102 is rotatably mounted about the longitudinal axis of the output shaft 20 to the support housing 64 and has a slot, similar to the slot 72 in upper bearing 68 , for slidably receiving the shaft 20 so that the shaft can execute reciprocating axial movement relative to the bearings 68 , 102 , but is prevented from moving in a direction transverse to its longitudinal axis.
  • the lower bearing 102 has four protruding legs 104 at its lower end, so that a cruciform slot ( FIG.
  • control bearing 106 is rotatably mounted to support housing 64 by means of engagement of a flange 116 on support housing 64 with a groove in control bearing 106 .
  • the control bearing 106 has a support arm 108 which carries a blade support roller 110 at a distal end thereof.
  • the blade support roller 110 has a groove 112 ( FIG. 1 ) for receiving the rear face of jigsaw blade 18 . Because the control bearing 106 is rotatably mounted to support housing 64 , the blade support roller 110 remains in contact with the jigsaw blade 18 in the scrolling, orbital and conventional modes of the jigsaw.
  • the lower bearing 102 , control bearing 106 and support housing 64 are so dimensioned that limited pivoting of control bearing 106 relative to lower bearing 102 is possible about an axis transverse to the longitudinal axis of the shaft 20 , and limited movement of the control bearing 106 relative to the support housing 64 is possible, with movement due to clearance 122 between control bearing 106 and support housing 64 being taken up by an elastomeric seal 118 , which also prevents leakage of lubricant from the interior of the support assembly 62 .
  • FIGS. 12 and 13 when the jigsaw is used to cut a workpiece (not shown), the reaction force from the workpiece acting on the blade 18 tends to cause the blade 18 to pivot clockwise relative to the shaft 20 form the position shown in FIG. 12 to that shown in FIG. 13 .
  • a turning moment is applied via blade support roller 110 to the support arm 108 in the direction of arrow C shown in FIG. 13 .
  • This turning moment is opposed by an opposite turning moment applied to the control bearing 106 by the support housing 64 as the clearance 122 is reduced from the arrangement shown in FIG. 12 c to that shown in FIG. 13 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
  • Harvester Elements (AREA)
  • Slide Switches (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Portable Power Tools In General (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
US10/902,750 2004-05-18 2004-07-29 Mode selection mechanism for power tool, and power tool incorporating such mechanism Abandoned US20050257385A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/837,624 US7509744B2 (en) 2004-05-18 2007-08-13 Mode selection mechanism for power tool and power tool incorporating such mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EPEP04252931.3 2004-05-18
EP04252931A EP1598134B1 (fr) 2004-05-18 2004-05-18 Outil motorisé comprenant un mécanisme de sélection de mode de fonctionnement

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/837,624 Continuation US7509744B2 (en) 2004-05-18 2007-08-13 Mode selection mechanism for power tool and power tool incorporating such mechanism

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Publication Number Publication Date
US20050257385A1 true US20050257385A1 (en) 2005-11-24

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US10/902,750 Abandoned US20050257385A1 (en) 2004-05-18 2004-07-29 Mode selection mechanism for power tool, and power tool incorporating such mechanism
US11/837,624 Expired - Fee Related US7509744B2 (en) 2004-05-18 2007-08-13 Mode selection mechanism for power tool and power tool incorporating such mechanism

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Application Number Title Priority Date Filing Date
US11/837,624 Expired - Fee Related US7509744B2 (en) 2004-05-18 2007-08-13 Mode selection mechanism for power tool and power tool incorporating such mechanism

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US (2) US20050257385A1 (fr)
EP (1) EP1598134B1 (fr)
CN (1) CN100515690C (fr)
AT (1) ATE391573T1 (fr)
AU (1) AU2004203095A1 (fr)
DE (1) DE602004012977T2 (fr)
DK (1) DK1598134T3 (fr)
ES (1) ES2303027T3 (fr)
NZ (1) NZ534019A (fr)

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US20050257383A1 (en) * 2004-05-18 2005-11-24 Phil Million Output shaft assembly for power tool and power tool incorporating such assembly
US20070186425A1 (en) * 2003-06-25 2007-08-16 Credo Technology Corporation Reciprocating cutting tool with orbital action
US20070289149A1 (en) * 2004-05-18 2007-12-20 Black And Decker Inc. Mode selection mechanism for power tool and power tool incorporating such mechanism
US20110094113A1 (en) * 2008-05-29 2011-04-28 Robert Bosch Gmbh Power Tool, in particular a Portable Power Tool
US20110119933A1 (en) * 2008-05-14 2011-05-26 Robert Bosch Gmbh Power tool, especially hand-held power tool
US20110126687A1 (en) * 2008-05-14 2011-06-02 Robert Bosch Gmbh Power tool, especially hand-held power tool
US20110131820A1 (en) * 2008-06-26 2011-06-09 Hans Kaiser Hand-held power jigsaw
US20110185582A1 (en) * 2008-05-14 2011-08-04 Robert Bosch Gmbh Power tool, especially hand-held power tool
US8033026B2 (en) 2007-09-21 2011-10-11 Black & Decker Inc. Adjustable and removable keel assembly and blade guide for a jigsaw
US8578615B2 (en) 2011-09-12 2013-11-12 Black & Decker Inc. Jigsaw with deployable keel and tiltable shoe
US9358624B2 (en) 2009-01-05 2016-06-07 Robert Bosch Gmbh Motor-driven machine tool
US20170225245A1 (en) * 2014-05-23 2017-08-10 Hitachi Koki Co., Ltd. Reciprocating tool
US9827623B2 (en) 2007-09-21 2017-11-28 Black & Decker Inc. Control of reciprocation speed and orbital magnitude of a jigsaw with a plurality of material and/or task descriptive icons
US9844823B2 (en) 2007-09-21 2017-12-19 Black & Decker Inc. Jigsaw with cutting angle indicator in jigsaw housing assembly
US9899899B2 (en) 2013-10-25 2018-02-20 Black & Decker Inc. Handheld power tool with compact AC switch
US10029322B2 (en) 2007-09-21 2018-07-24 Black & Decker Inc. Housing of a cutting tool including blade storage, integral blade guard and motor ventilation pathway

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DE102005063016A1 (de) * 2005-12-30 2007-07-05 Robert Bosch Gmbh Handwerkzeugmaschine mit Drehgriffverstelleinrichtung
CN101284320B (zh) * 2007-04-13 2011-12-07 苏州宝时得电动工具有限公司 往复切割工具
US20090077817A1 (en) * 2007-09-21 2009-03-26 Black & Decker Inc. Dash-dot laser cutting guide tiltable from a housing for battery replacement
US20090077819A1 (en) * 2007-09-21 2009-03-26 Black & Decker Inc. Cutting Angle Indicator in Jigsaw Housing with Positive Lock in Separately Assembled Shoe Sub-Assembly
US8205342B2 (en) * 2008-12-23 2012-06-26 Credo Technology Corporation Rotating spindle for a reciprocating saw

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Cited By (22)

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Publication number Priority date Publication date Assignee Title
US8201337B2 (en) * 2003-06-25 2012-06-19 Robert Bosch Gmbh Reciprocating cutting tool with orbital action
US20070186425A1 (en) * 2003-06-25 2007-08-16 Credo Technology Corporation Reciprocating cutting tool with orbital action
US20070289149A1 (en) * 2004-05-18 2007-12-20 Black And Decker Inc. Mode selection mechanism for power tool and power tool incorporating such mechanism
US7509744B2 (en) * 2004-05-18 2009-03-31 Black & Decker Inc. Mode selection mechanism for power tool and power tool incorporating such mechanism
US20050257383A1 (en) * 2004-05-18 2005-11-24 Phil Million Output shaft assembly for power tool and power tool incorporating such assembly
US10029322B2 (en) 2007-09-21 2018-07-24 Black & Decker Inc. Housing of a cutting tool including blade storage, integral blade guard and motor ventilation pathway
US9981327B2 (en) 2007-09-21 2018-05-29 Black & Decker Inc. Cutting angle indicator in jigsaw housing with dust extraction
US9844823B2 (en) 2007-09-21 2017-12-19 Black & Decker Inc. Jigsaw with cutting angle indicator in jigsaw housing assembly
US9827623B2 (en) 2007-09-21 2017-11-28 Black & Decker Inc. Control of reciprocation speed and orbital magnitude of a jigsaw with a plurality of material and/or task descriptive icons
US8033026B2 (en) 2007-09-21 2011-10-11 Black & Decker Inc. Adjustable and removable keel assembly and blade guide for a jigsaw
US20110119933A1 (en) * 2008-05-14 2011-05-26 Robert Bosch Gmbh Power tool, especially hand-held power tool
US20110185582A1 (en) * 2008-05-14 2011-08-04 Robert Bosch Gmbh Power tool, especially hand-held power tool
US20110126687A1 (en) * 2008-05-14 2011-06-02 Robert Bosch Gmbh Power tool, especially hand-held power tool
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Publication number Publication date
EP1598134B1 (fr) 2008-04-09
DE602004012977T2 (de) 2009-05-20
ES2303027T3 (es) 2008-08-01
DE602004012977D1 (de) 2008-05-21
US20070289149A1 (en) 2007-12-20
ATE391573T1 (de) 2008-04-15
NZ534019A (en) 2006-03-31
CN100515690C (zh) 2009-07-22
DK1598134T3 (da) 2008-07-28
US7509744B2 (en) 2009-03-31
AU2004203095A1 (en) 2005-12-08
EP1598134A1 (fr) 2005-11-23
CN1699027A (zh) 2005-11-23

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