WO2005042194A1 - A rotary chamfering tool - Google Patents

A rotary chamfering tool Download PDF

Info

Publication number
WO2005042194A1
WO2005042194A1 PCT/GB2004/004466 GB2004004466W WO2005042194A1 WO 2005042194 A1 WO2005042194 A1 WO 2005042194A1 GB 2004004466 W GB2004004466 W GB 2004004466W WO 2005042194 A1 WO2005042194 A1 WO 2005042194A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
collar
spigot
chamfering
radial webs
Prior art date
Application number
PCT/GB2004/004466
Other languages
French (fr)
Inventor
Michael John Edward Larwood
Original Assignee
Michael John Edward Larwood
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 Michael John Edward Larwood filed Critical Michael John Edward Larwood
Priority to GB0608861A priority Critical patent/GB2423040B/en
Publication of WO2005042194A1 publication Critical patent/WO2005042194A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/16—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
    • B23B5/167—Tools for chamfering the ends of bars or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/10—Bits for countersinking
    • B23B51/103—Deburring or chamfering tools for the ends of tubes or rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/007—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor for end faces of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/18—Wheels of special form

Definitions

  • the invention relates to tools used for chamfering the end regions of pipes or the like.
  • One of the objectives of the present invention is to introduce a tool which is separate from expensive and complex power driving machinery.
  • One particular objective of the present invention is to provide a tool which may be selectively employed for either manual chamfering or mounting in a common wireless rotary driver.
  • the invention provides a rotary tool for chamfering the end regions of pipes or the like, the tool consisting of a collar, one surface of which incorporates abrasive means and allows mating engagement when in use, with a corresponding article destined for chamfering- and a spigot, central to the collar, incorporating means facilitating gripping of the spigot by a drill chuck, characterised by the feature that the tool comprises just the collar, the spigot and the necessary radial webs connecting the one to the other.
  • the invention provides a rotary tool for chamfering the end regions of pipes or the like, the tool consisting of a collar, one surface of which incorporates abrasive means and allows mating engagement, when in use, with a corresponding article destined for chamfering, and a spigot, central to the collar, incorporating means for facilitating gripping of the spigot by a drill chuck and radial webs connecting the spigot to the collar, characterised by the feature that the tool further comprises a connector which mates, in use, with a portion of said spigot and is itself of greater diameter than the spigot.
  • This configuration is particularly advantageous because it would allow the use of a relatively compact spigot which would have particular benefits for example, when the connector is removed from the tool and the tool is selected for manual chamfering.
  • the radial webs merge into a single piece covering the entire inner diameter area of the tool. This would be particularly advantageous in terms of the tool's strength and durability. It would also create a barrier for the swarf which may be caused to exit the tool at its far end rather than exiting the tool in the direction of the user.
  • the radial webs consist of three arms located substantially 120° apart.
  • the tool is made out of a sheet of material specifically adapted to be folded into a tool according to any preceding aspects.
  • the tool incorporates means for facilitating gripping about the periphery of the collar and/or about a handle stretching across said collar so that the rotation of the operator's hand translates directly into the rotation of the collar.
  • This combination of features would allow the tool to be selectively used in an improved manner either with a drill chuck or manually for certain chamfering operations.
  • Figure 1 shows a side elevation of a first embodiment of the invention.
  • Figure 2 shows an end elevation of a second embodiment of the invention.
  • Figure 3 shows a third embodiment of the invention.
  • Figure 4 shows an end elevation of a fourth embodiment of the invention.
  • Figures 5 show a fifth embodiment of the invention.
  • Figure 6 shows a perspective view of a sixth embodiment of the invention.
  • Figure 1 shows a rotary tool 1 comprising a collar 2 with an inner abrasive means (not illustrated in the figure) and a radial web 3 extending across the diameter of the rotary tool 1.
  • a spigot 4 with multiple faces has been provided to allow it to be held by a drill chuck.
  • 'spigot' is also to be interpreted broadly and extends to projections which are either solid or incorporate hollow portions and also extends generally to any means capable of releasably engaging a drill chuck to allow the drill to drive the rotary motion of the tool.
  • Figure 2 shows a further rotary tool 6 with a collar 7 comprising abrasive portions such as that referenced 8 located on the outside of the collar.
  • abrasive portions such as that referenced 8 located on the outside of the collar.
  • On the inside of the collar there are provided a number of recesses 9 so sized to receive the end regions of the operator's fingers should he/she desire to operate the tool manually.
  • a web 10 stretches across the collar with a receiving means or spigot 11 for receiving a mating part of a drill to allow the transmission of rotation from the drill to the tool.
  • Figure 3 shows a further tool referenced 12. Incorporating a recessed spigot 13 designed to mate with projection 14 of a connector 15. The diameter of the connector 15 may be selected as larger than the diameter of recessed spigot 13 in order to accommodate a variety of drill chucks or other power driving appropriate devices.
  • Figure 4 shows a tool 16 with a web generally referenced 17 formed of three arms 18, 19 and 20. The arms are located at 120° apart from one another.
  • Figure 5b shows a sheet of material 21 with an abrasive side 22.
  • the device may be folded to form the tool as shown in Figure 5a.
  • Attachment means 23 and 24 are provided to attach the extremities of the sheet of material to form a collar as shown in Figure 5a.
  • Three arms 25, 26 and 27 may be folded inwardly and attached together at their extremities to form the necessary radial webs of the rotary tool. When these arms are joined together a spigot 28 is formed and may be used to co-operate with the chuck of a drill.
  • Figure 6 shows a tool 29 with a cylindrical spigot 30 and a single web 31 stretching across the entire inner diameter area of the collar 32 of tool 29.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

A rotary tool for chamfering the end regions of pipes or the like, the tool consists of a collar, one surface of which incorporates abrasive means and allows mating engagement, when in use, with a corresponding article destined for chamfering, and a spigot, central to the collar, incorporating means facilitating gripping of the spigot by a drill chuck, characterised by the feature that the tool comprises just the collar, the spigot and the necessary radial webs connecting the one to the other.

Description

A ROTARY CHAMFERING TOOL
Field of the Invention
The invention relates to tools used for chamfering the end regions of pipes or the like.
Background to the Invention
The closest prior art to the present application is the applicant's own prior patent application GB0219120.3 (PCT/GB2003/003563). This prior application deals exclusively with hand-held chamfering tools and will not have been published by the filing date of the present application and on that basis its effect on this application is limited but is mentioned here as useful background.
The next closest prior art concerns power driven tools such as those disclosed in US4114484 and US4840096. Both of these prior art documents introduce complex multipart power tools incorporating such elements as clamps, integrated motor and cutting head, remote control apparatus etc.
One of the objectives of the present invention is to introduce a tool which is separate from expensive and complex power driving machinery. One particular objective of the present invention is to provide a tool which may be selectively employed for either manual chamfering or mounting in a common wireless rotary driver.
Summary of the Invention
In a first broad aspect, the invention provides a rotary tool for chamfering the end regions of pipes or the like, the tool consisting of a collar, one surface of which incorporates abrasive means and allows mating engagement when in use, with a corresponding article destined for chamfering- and a spigot, central to the collar, incorporating means facilitating gripping of the spigot by a drill chuck, characterised by the feature that the tool comprises just the collar, the spigot and the necessary radial webs connecting the one to the other.
This is particularly advantageous because it is more practical to use than the complex prior art discussed above. It is particularly practical when destined to be used in confined spaces. It is also particularly low cost to manufacture and adaptable to be used with currently available drills or other machinery available on today's work sites.
In a second broad aspect, the invention provides a rotary tool for chamfering the end regions of pipes or the like, the tool consisting of a collar, one surface of which incorporates abrasive means and allows mating engagement, when in use, with a corresponding article destined for chamfering, and a spigot, central to the collar, incorporating means for facilitating gripping of the spigot by a drill chuck and radial webs connecting the spigot to the collar, characterised by the feature that the tool further comprises a connector which mates, in use, with a portion of said spigot and is itself of greater diameter than the spigot.
This configuration is particularly advantageous because it would allow the use of a relatively compact spigot which would have particular benefits for example, when the connector is removed from the tool and the tool is selected for manual chamfering.
In a further subsidiary aspect, the radial webs merge into a single piece covering the entire inner diameter area of the tool. This would be particularly advantageous in terms of the tool's strength and durability. It would also create a barrier for the swarf which may be caused to exit the tool at its far end rather than exiting the tool in the direction of the user.
In a further subsidiary aspect, the radial webs consist of three arms located substantially 120° apart.
This would ideally combine structural strength and accessibility to the tool during use for say cleaning purposes.
In a further subsidiary aspect, the tool is made out of a sheet of material specifically adapted to be folded into a tool according to any preceding aspects.
This would allow the tool to be sold in flat-pack form which may be ideal where the tool is a disposable item.
In a further subsidiary aspect, the tool incorporates means for facilitating gripping about the periphery of the collar and/or about a handle stretching across said collar so that the rotation of the operator's hand translates directly into the rotation of the collar.
This combination of features would allow the tool to be selectively used in an improved manner either with a drill chuck or manually for certain chamfering operations.
Brief Description of the Figures
Figure 1 shows a side elevation of a first embodiment of the invention.
Figure 2 shows an end elevation of a second embodiment of the invention.
Figure 3 shows a third embodiment of the invention.
Figure 4 shows an end elevation of a fourth embodiment of the invention. Figures 5 show a fifth embodiment of the invention.
Figure 6 shows a perspective view of a sixth embodiment of the invention.
Detailed Description of the Figures
Figure 1 shows a rotary tool 1 comprising a collar 2 with an inner abrasive means (not illustrated in the figure) and a radial web 3 extending across the diameter of the rotary tool 1. At a central region of web 3 a spigot 4 with multiple faces has been provided to allow it to be held by a drill chuck.
In this specification the term 'central' when referring to the location of the spigot is to be interpreted broadly as generally central but allowing a degree of eccentricity. If spigot 4 were located in a slight centric position it is likely that adequate chamfering could be achieved of the end of a pipe particularly when the pipe is itself flexible.
Furthermore, the term 'spigot' is also to be interpreted broadly and extends to projections which are either solid or incorporate hollow portions and also extends generally to any means capable of releasably engaging a drill chuck to allow the drill to drive the rotary motion of the tool.
On the outer surface of collar 2, there are provided high friction finger engaging portions such as that referenced 5 which could allow a user, should he/she desire, to manually operate the tool.
Figure 2 shows a further rotary tool 6 with a collar 7 comprising abrasive portions such as that referenced 8 located on the outside of the collar. On the inside of the collar there are provided a number of recesses 9 so sized to receive the end regions of the operator's fingers should he/she desire to operate the tool manually. A web 10 stretches across the collar with a receiving means or spigot 11 for receiving a mating part of a drill to allow the transmission of rotation from the drill to the tool. Figure 3 shows a further tool referenced 12. Incorporating a recessed spigot 13 designed to mate with projection 14 of a connector 15. The diameter of the connector 15 may be selected as larger than the diameter of recessed spigot 13 in order to accommodate a variety of drill chucks or other power driving appropriate devices.
Figure 4 shows a tool 16 with a web generally referenced 17 formed of three arms 18, 19 and 20. The arms are located at 120° apart from one another.
Figure 5b shows a sheet of material 21 with an abrasive side 22. The device may be folded to form the tool as shown in Figure 5a. Attachment means 23 and 24 are provided to attach the extremities of the sheet of material to form a collar as shown in Figure 5a. Three arms 25, 26 and 27 may be folded inwardly and attached together at their extremities to form the necessary radial webs of the rotary tool. When these arms are joined together a spigot 28 is formed and may be used to co-operate with the chuck of a drill.
Figure 6 shows a tool 29 with a cylindrical spigot 30 and a single web 31 stretching across the entire inner diameter area of the collar 32 of tool 29.

Claims

1. A rotary tool for chamfering the end regions of pipes or the like, the tool consisting of a collar, one surface of which incorporates abrasive means and allows mating engagement, when in use, with a corresponding article destined for chamfering, and a spigot, central to the collar, incorporating means facilitating gripping of the spigot by a drill chuck, characterised by the feature that the tool comprises just the collar, the spigot and the necessary radial webs connecting the one to the other.
2. A rotary tool for chamfering the end regions of pipes or the like, the tool consisting of a collar, one surface of which incorporates abrasive means and allows mating engagement, when in use, with a corresponding article destined for chamfering, and a spigot, central to the collar, incorporating means for facilitating gripping of the spigot by a drill chuck and radial webs connecting the spigot to the collar, characterised by the feature that the tool further comprises a connector which mates, in use, with a portion of said spigot and is itself of greater diameter than the spigot.
3. A tool according to either claim 1 or claim 2, wherein the radial webs merge into a single piece covering the entire inner diameter area of the tool.
4. A tool according to any preceding claim, wherein the radial webs consist of three arms located substantially 120° apart.
5. A tool according to any preceding claims, wherein the tool is made out of a sheet of material specifically adapted to be folded into a tool according to any preceding claim.
6. A tool according to any preceding claim incorporating means facilitating manual gripping about the periphery of said collar and/or about a handle stretching across said collar so that the rotation of the operator's hand translates directly into the rotation of the collar.
7. A rotary tool substantially as herein before described with reference to and/or illustrated in any appropriate combination of the accompanying text and figures.
PCT/GB2004/004466 2003-10-31 2004-10-21 A rotary chamfering tool WO2005042194A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0608861A GB2423040B (en) 2003-10-31 2004-10-21 A Rotary Chamfering Tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0325467.9A GB0325467D0 (en) 2003-10-31 2003-10-31 Rotary chamfering tool
GB0325467.9 2003-10-31

Publications (1)

Publication Number Publication Date
WO2005042194A1 true WO2005042194A1 (en) 2005-05-12

Family

ID=29725734

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2004/004466 WO2005042194A1 (en) 2003-10-31 2004-10-21 A rotary chamfering tool

Country Status (2)

Country Link
GB (2) GB0325467D0 (en)
WO (1) WO2005042194A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2453791A (en) * 2007-10-20 2009-04-22 Armeg Ltd Abrasive tool for chamfering plastic pipes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2458174A (en) * 2008-03-08 2009-09-09 Alexander Ramsay A Pipe Chamfer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2363102A (en) * 1939-08-10 1944-11-21 Walter J Wachowitz Abrading tool
US3754832A (en) * 1970-12-01 1973-08-28 C Stickler Device for deburring plastic pipes
US3917429A (en) * 1974-04-11 1975-11-04 Holmes E Ertley Thin wall tubing deburring tool
DE29622571U1 (en) * 1996-12-31 1997-03-20 Skukowski, Paul, 48231 Warendorf Tool for exposing metal surfaces for ground connections

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9004662D0 (en) * 1990-03-01 1990-04-25 Grundy Frank J Chamfering tool for plastic pipes
GB2245516A (en) * 1990-06-29 1992-01-08 Geoffrey Samuel Rose Pipe beveller
GB2384453A (en) * 2002-01-23 2003-07-30 Christopher George Fuller A tube deburring tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2363102A (en) * 1939-08-10 1944-11-21 Walter J Wachowitz Abrading tool
US3754832A (en) * 1970-12-01 1973-08-28 C Stickler Device for deburring plastic pipes
US3917429A (en) * 1974-04-11 1975-11-04 Holmes E Ertley Thin wall tubing deburring tool
DE29622571U1 (en) * 1996-12-31 1997-03-20 Skukowski, Paul, 48231 Warendorf Tool for exposing metal surfaces for ground connections

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2453791A (en) * 2007-10-20 2009-04-22 Armeg Ltd Abrasive tool for chamfering plastic pipes

Also Published As

Publication number Publication date
GB2423040A (en) 2006-08-16
GB0608861D0 (en) 2006-06-14
GB0325467D0 (en) 2003-12-03
GB2423040B (en) 2008-08-06

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