US20040103769A1 - Dust collection arrangement for a miter saw - Google Patents

Dust collection arrangement for a miter saw Download PDF

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Publication number
US20040103769A1
US20040103769A1 US10/644,420 US64442003A US2004103769A1 US 20040103769 A1 US20040103769 A1 US 20040103769A1 US 64442003 A US64442003 A US 64442003A US 2004103769 A1 US2004103769 A1 US 2004103769A1
Authority
US
United States
Prior art keywords
blade guard
upper blade
saw
miter saw
rib
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
US10/644,420
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English (en)
Inventor
James Parks
Brian Wattenbach
Steven McKeithen
James Stiles
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US10/644,420 priority Critical patent/US20040103769A1/en
Publication of US20040103769A1 publication Critical patent/US20040103769A1/en
Priority to US11/157,126 priority patent/US7222560B2/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
    • B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/04—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock carried by a pivoted lever
    • B23D45/042—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock carried by a pivoted lever with the saw blade carried by a pivoted lever
    • B23D45/044—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade or the stock carried by a pivoted lever with the saw blade carried by a pivoted lever the saw blade being adjustable according to angle of cut
    • 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
    • B23D59/006—Accessories specially designed for sawing machines or sawing devices for removing or collecting chips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/02—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/207—By suction means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2209—Guide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2209—Guide
    • Y10T83/2216—Inclined conduit, chute or plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7684—With means to support work relative to tool[s]
    • Y10T83/7722—Support and tool relatively adjustable
    • Y10T83/7726—By movement of the tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7734—With guard for tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7755—Carrier for rotatable tool movable during cutting
    • Y10T83/7763—Tool carrier reciprocable rectilinearly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7755—Carrier for rotatable tool movable during cutting
    • Y10T83/7788—Tool carrier oscillated or rotated

Definitions

  • This invention relates generally to miter saws and in particular to dust collection arrangements for miter saws.
  • non-sliding and slide miter saws both have a base 11 , a rotatable table 12 attached to the base 11 , a saw assembly 20 including a motor 21 , a blade 22 driven by the motor 21 , a cover housing (not shown) covering motor 21 , an upper blade guard 24 covering the upper part of blade 22 , and a lower guard 25 (shown in broken lines) pivotably attached to upper blade guard 24 for covering the lower part of blade 21 . Accordingly, the saw assembly 20 is pivoted downwardly for cutting a workpiece disposed on the base 11 and table 12 .
  • slide miter saws enable the user to move the saw assembly horizontally along the table.
  • Most slide miter saws accomplish this by connecting the upper blade guard 24 (and thus the saw assembly 20 ) to a pivot arm 26 , which in turn is connected to a trunnion 13 , which is fixedly connected to at least one rail 14 , which is slidably attached to a support housing 15 connected to the table 12 (see, e.g., U.S. Pat. No. 6,067,885).
  • the user would pull the saw assembly 20 forwardly, move the saw assembly 20 downwardly, then push the saw assembly 20 rearwardly for cutting a workpiece W.
  • the miter saw may also have a movable fence assembly 30 attached to the base 11 .
  • Movable fence assembly 30 may extend laterally across table 12 , against which workpiece W can be positioned and supported for performing the cutting operation thereon.
  • Movable fence assembly 30 typically include a fixed fence 31 attached to base 11 , and a movable fence 32 connected to the fixed fence 21 .
  • movable fence 32 is slidably attached to fixed fence 31 .
  • U.S. Pat. Nos. 5,297,463 and 5,943,931 which are wholly incorporated by reference herein.
  • Some miter saws include dust collection flaps 27 for directing the dust resulting from the cutting operation through pivot arm 26 and/or upper blade guard 24 , which then exits through dust port 27 .
  • Some typical dust collection flaps 27 are made of rubber or other resilient materials.
  • an improved miter saw is employed.
  • the miter saw includes a base, a table rotatably attached to the base, a support housing connected to the table, a saw assembly connected to the support housing, the saw assembly comprising a pivot arm, an upper blade guard connected to the pivot arm, a motor attached to the upper blade guard, and a blade driven by the motor, and a dust collector having a main body, wherein at least one slot is disposed on the main body.
  • FIG. 1 is a side view of a typical prior art slide miter saw
  • FIG. 2 is a partial side view of a saw assembly according to the invention.
  • FIG. 3 illustrates a first embodiment of a dust collector according to the invention, where FIG. 3A is a front view of the dust collector along line III-III of FIG. 2 and FIG. 3B is a side view of the dust collector in a bent position;
  • FIG. 4 illustrates a second embodiment of a dust collector according to the invention, where FIGS. 4 A- 4 B are side views of the dust collector with the lower blade guard in non-contacting and contacting positions, respectively;
  • FIG. 5 is a partial cross-sectional view along line V-V of FIG. 2;
  • FIG. 6 is a partial perspective view of the arrangement shown in FIG. 5.
  • a slide miter saw 10 preferably has a base 11 , a table 12 rotatably connected to the base 11 , a support housing 15 pivotally connected to table 12 , at least one (and preferably two) rail(s) 14 slidably connected to the support housing 15 , and a saw assembly which comprises a trunnion 13 attached to one end of the rail(s) 14 , a pivot arm 26 pivotably attached to trunnion 13 , a motor 21 , a blade 22 driven by the motor 21 , an upper blade guard 24 for covering an upper part of blade 22 , and a lower blade 25 pivotally attached to the upper blade guard 24 for covering a lower part of blade 22 .
  • the motor 21 is attached to the upper blade guard 24 .
  • a dust collector assembly 40 may be attached to the upper blade guard 24 and/or pivot arm 26 for directing the dust resulting from the cutting operation through pivot arm 26 and/or upper blade guard 24 . The dust preferably then exits through dust port 27 .
  • Dust collector assembly 40 may be made of rubber or any other resilient material.
  • Dust collector assembly 40 may have a main body 41 , side walls 43 , and a lower portion 42 . Dust collector assembly may also have at least one slot 44 extending from main body 41 to the outer edge of dust collector assembly 40 .
  • slots 44 are preferably through slots. In other words, the slots 44 preferably extend between opposing faces of dust collector assembly 40 .
  • the slots 44 are disposed between the side walls 43 and the lower portion 42 to allow lower portion 42 to fold either forwardly or rearwardly (as shown in FIG. 3B) when passing over an obstruction, a workpiece, etc.
  • slots 44 may be disposed anywhere on dust collector assembly 40 . It is however preferable to not place the slots in the middle (or vertical centerline) of main body 41 as some dust may escape through the slots. However, such placement is still within the scope of the present invention.
  • Providing at least one slot 44 may also allow different parts of dust collector assembly 40 to move relative to each other when compressed by the lower blade guard 25 , so that it does not partly expose the outer circumference of blade 22 .
  • FIG. 4 Another embodiment of dust collector assembly 40 is shown in FIG. 4.
  • the teachings of the previous embodiment are wholly incorporated herein.
  • dust collector assembly 40 has a body 45 with at least one slot 46 disposed thereon.
  • slot(s) 46 unlike slot 44 , do(es) not reach the outer edge of body 45 .
  • providing at least one slot 46 allows different parts of dust collector assembly 40 to move relative to each other when compressed by the lower blade guard 25 , so that it does not partly expose the outer circumference of blade 22 , as shown in FIG. 4 and more specifically in FIG. 4B.
  • slots 46 are preferably through slots.
  • the slots 46 preferably extend between opposing faces of dust collector assembly 40 .
  • the upper blade guard 24 may incorporate another feature to assist in the collection of dust.
  • upper blade guard 24 may have a shaft support 24 S for supporting a shaft 21 S which may be driven by motor 21 and/or supports blade 22 .
  • Upper blade guard 24 may also support a motor housing 28 which encloses motor 21 .
  • Upper blade guard 24 may have a rib 24 R for limiting the amount of dust entering upper blade guard 24 .
  • rib 24 R is substantially perpendicular to the plane defined by blade 22 .
  • a plane defined by rib 24 R may intersect the axis of rotation of shaft 21 S and/or blade 22 . Accordingly, rib 24 R may prevent some dust or wood chips from entering the upper blade guard 24 .
  • Rib 24 R may also preferably shaped so that it affects the airflow within upper blade guard 24 .
  • rib 24 is substantially flat. By placing it as described above, it would help direct the dust or wood chips that entered into the upper blade guard 24 towards dust port 27 .
  • shaft support 24 S and rib 24 R may be separable from or integrally build into upper blade guard 24 .
  • shaft support 24 S and rib 24 R may be built integrally together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Lock And Its Accessories (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
US10/644,420 2002-09-17 2003-08-20 Dust collection arrangement for a miter saw Abandoned US20040103769A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/644,420 US20040103769A1 (en) 2002-09-17 2003-08-20 Dust collection arrangement for a miter saw
US11/157,126 US7222560B2 (en) 2002-09-17 2005-06-20 Dust collection arrangement for a miter saw

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41137102P 2002-09-17 2002-09-17
US10/644,420 US20040103769A1 (en) 2002-09-17 2003-08-20 Dust collection arrangement for a miter saw

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/157,126 Continuation US7222560B2 (en) 2002-09-17 2005-06-20 Dust collection arrangement for a miter saw

Publications (1)

Publication Number Publication Date
US20040103769A1 true US20040103769A1 (en) 2004-06-03

Family

ID=28792131

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/644,420 Abandoned US20040103769A1 (en) 2002-09-17 2003-08-20 Dust collection arrangement for a miter saw
US11/157,126 Expired - Fee Related US7222560B2 (en) 2002-09-17 2005-06-20 Dust collection arrangement for a miter saw

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/157,126 Expired - Fee Related US7222560B2 (en) 2002-09-17 2005-06-20 Dust collection arrangement for a miter saw

Country Status (8)

Country Link
US (2) US20040103769A1 (zh)
EP (2) EP1550525A3 (zh)
CN (2) CN100358660C (zh)
AT (1) ATE302086T1 (zh)
DE (1) DE60301306T2 (zh)
DK (1) DK1400296T3 (zh)
SE (2) SE527043C2 (zh)
TW (1) TW200410780A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050262978A1 (en) * 2004-04-15 2005-12-01 Hetcher Jason D Dust collection assembly for a power tool
US20090288533A1 (en) * 2008-05-20 2009-11-26 Black & Decker Inc. Air deflector assemblies for miter saws

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1852227B1 (en) * 2004-07-07 2013-03-27 Black & Decker Inc. Blade guard assembly for a saw
AU2005202871B2 (en) * 2004-07-07 2010-05-27 Black & Decker, Inc. Blade guard assembly for saws
US7789003B2 (en) 2006-08-29 2010-09-07 Rexon Industrial Corp., Ltd. Miter saw
JP4780528B2 (ja) * 2006-09-20 2011-09-28 日立工機株式会社 卓上切断機
DE102007008353B4 (de) * 2007-02-20 2014-07-10 Illinois Tool Works Inc. Rohrtrennvorrichtung
JP5056318B2 (ja) * 2007-09-28 2012-10-24 日立工機株式会社 卓上切断機
TW200927340A (en) * 2007-12-24 2009-07-01 Rexon Ind Corp Ltd Dust collector for use in miter saw
JP5179232B2 (ja) 2008-03-21 2013-04-10 株式会社マキタ 卓上切断機
US8702478B2 (en) * 2009-05-08 2014-04-22 Michael Loveless Angle grinder dust shroud with unitary adjustable mounting collar
US8523637B2 (en) * 2009-07-21 2013-09-03 Dustless Depot, Llc Angle grinder dust shroud with slideable access hatch
US8561512B2 (en) * 2009-08-18 2013-10-22 Dustless Depot Llc Cutoff saw and stand with integrated dust filtration system
US9038275B2 (en) 2011-09-07 2015-05-26 Dustless Depot, Llc Reciprocating saw dust shroud
US9149951B2 (en) 2012-02-29 2015-10-06 Nomis Llc Dust collection assembly and a tensioning system for a saw
US8726774B1 (en) 2012-03-26 2014-05-20 David Kellum Miter saw dust collector apparatus
GB2507943A (en) * 2012-07-23 2014-05-21 Black & Decker Inc Dust removal for Saw
US10882123B2 (en) 2015-02-25 2021-01-05 Milwaukee Electric Tool Corporation Miter saw
US10293421B2 (en) 2016-09-15 2019-05-21 Dustless Depot, Llc Circular saw dust collection shroud
USD816453S1 (en) 2016-09-15 2018-05-01 Dustless Depot, Llc Circular saw dust shroud
CN107309990B (zh) * 2017-07-18 2020-05-15 安庆市国泰家具有限公司 一种具有木屑遮挡功能的铣刀
CN107685180A (zh) * 2017-10-11 2018-02-13 宁波鄞州台本荣机械设备有限公司 一种新型的新能源切割设备
USD908149S1 (en) 2018-10-23 2021-01-19 Dustless Depot Llc Angle grinder dust shroud with variable position slots for mounting brackets
US11123839B2 (en) 2018-10-23 2021-09-21 Dustless Depot Llc Grinder dust shroud with input shaft gasket and adjustable mounting mechanism
US11273505B2 (en) 2019-03-27 2022-03-15 Dustless Depot, Llc Circular saw dust collection shroud

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US4675999A (en) * 1984-11-16 1987-06-30 Hitachi Koki Company, Ltd. Portable power tool equipped with dust collector
US5033192A (en) * 1989-07-01 1991-07-23 Hilti Aktiengesellschaft Hand-held tool with cutting or grinding disk
US5357834A (en) * 1992-05-22 1994-10-25 Makita Corporation Miter saw
US6167626B1 (en) * 1999-07-30 2001-01-02 S-B Power Tool Company Dust collection port for use with a saw

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US6742425B2 (en) * 2001-06-14 2004-06-01 Black & Decker Inc. Dust collector
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Publication number Priority date Publication date Assignee Title
US123111A (en) * 1872-01-30 Improvement in sash-holders
US4675999A (en) * 1984-11-16 1987-06-30 Hitachi Koki Company, Ltd. Portable power tool equipped with dust collector
US5033192A (en) * 1989-07-01 1991-07-23 Hilti Aktiengesellschaft Hand-held tool with cutting or grinding disk
US5357834A (en) * 1992-05-22 1994-10-25 Makita Corporation Miter saw
US6167626B1 (en) * 1999-07-30 2001-01-02 S-B Power Tool Company Dust collection port for use with a saw

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050262978A1 (en) * 2004-04-15 2005-12-01 Hetcher Jason D Dust collection assembly for a power tool
US7802505B2 (en) 2004-04-15 2010-09-28 Milwaukee Electric Tool Corporation Dust collection assembly for a power tool
US20090288533A1 (en) * 2008-05-20 2009-11-26 Black & Decker Inc. Air deflector assemblies for miter saws
US7980163B2 (en) 2008-05-20 2011-07-19 Black & Decker Inc. Air deflector assemblies for miter saws

Also Published As

Publication number Publication date
CN100509231C (zh) 2009-07-08
EP1550525A2 (en) 2005-07-06
DE60301306D1 (de) 2005-09-22
ATE302086T1 (de) 2005-09-15
SE0302394L (sv) 2004-03-18
US7222560B2 (en) 2007-05-29
SE0302394D0 (sv) 2003-09-08
SE527043C2 (sv) 2005-12-13
CN101081448A (zh) 2007-12-05
EP1550525A3 (en) 2005-07-20
EP1400296A2 (en) 2004-03-24
TW200410780A (en) 2004-07-01
CN1490108A (zh) 2004-04-21
CN100358660C (zh) 2008-01-02
DK1400296T3 (da) 2005-10-24
DE60301306T2 (de) 2006-06-29
SE0501760L (sv) 2005-08-01
EP1400296A3 (en) 2004-04-07
US20050229757A1 (en) 2005-10-20
EP1400296B1 (en) 2005-08-17

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