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WO2005042213A1 - Outil - Google Patents

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Publication number
WO2005042213A1
WO2005042213A1 PCT/AU2004/001501 AU2004001501W WO2005042213A1 WO 2005042213 A1 WO2005042213 A1 WO 2005042213A1 AU 2004001501 W AU2004001501 W AU 2004001501W WO 2005042213 A1 WO2005042213 A1 WO 2005042213A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
endless
tool according
work
endless band
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.)
Ceased
Application number
PCT/AU2004/001501
Other languages
English (en)
Inventor
Michael Peter Wildon
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
Priority claimed from AU2003906003A external-priority patent/AU2003906003A0/en
Application filed by Individual filed Critical Individual
Publication of WO2005042213A1 publication Critical patent/WO2005042213A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/12—Tooth saws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/14—Surgical saws
    • A61B17/149—Chain, wire or band saws
    • 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
    • B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
    • B23D57/0007—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 using saw wires
    • B23D57/0015—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 using saw wires hand-held or hand-operated
    • 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
    • B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
    • B23D57/003—Sawing machines or sawing devices working with saw wires, characterised only by constructional features of particular parts
    • B23D57/0053—Sawing machines or sawing devices working with saw wires, characterised only by constructional features of particular parts of drives for saw wires; of wheel mountings; of wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/46—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having an endless band-knife or the like

Definitions

  • This invention relates to a tool for performing operations on a work-piece.
  • the tool has been devised particularly, although not solely, as a hand-held tool for performing sawing operations.
  • band saws have the benefit of providing support for the cutting blade on opposed sides of a work-piece.
  • band saws are of a construction which is not readily portable. Accordingly, in circumstances where there is a need for a portable power tool the choice is usually restricted to a jigsaw.
  • a tool comprising a first portion, a second portion detachably connected to the first portion, and a tool element mounted on the second portion.
  • the second portion provides a holder for the tool element and is intended for exchange or replacement with the tool element.
  • the first and second portions are each configured to facilitate gripping thereof by a user.
  • the first portion may be configured as a handle incorporating any controls for the tool.
  • Such controls may comprise a release mechanism for detaching the first portion and the second portion, and any control switches for the tool.
  • the tool is a power tool in which case the tool element is adapted to be driven by a drive motor, typically an electric motor which may be operable by battery.
  • a drive motor typically an electric motor which may be operable by battery.
  • the motor is accommodated within the first portion, and a coupling mechanism is provided between the first portion and the second portion for the drivingly connecting the motor to the tool element.
  • the tool element may comprise an endless band adapted to move around an endless path.
  • the tool element may be supported to pass around guide means provided on the second portion.
  • the guide means may be of any appropriate form such as guide rollers.
  • the endless band may be drivingly engaged with a drive element (such as a drive pulley) drivingly connected to the drive motor.
  • a drive element such as a drive pulley
  • the second portion may comprise a pair of spaced apart limbs with a run of the endless band extending between the limbs adjacent the free ends thereof, whereby the run of the band can be presented to a work-piece for performing an operation thereon.
  • the first portion may define a space into which the second portion is removably received.
  • the tool element may comprise a cutting tool, such as a sawing element. Where the tool performs an operation other than cutting (for example, filing or polishing), the tool element for performing such an operation may also be configured as an endless band.
  • the tool element may comprise a blade adapted to be heated for performing a heat cutting operation. This is particularly appropriate for cutting heat sensitive materials such as foam and polystyrene.
  • a tool element and holder therefor for use with a tool according to the first aspect of the invention.
  • a part for a tool comprising the second portion of the tool according to the first aspect of the invention.
  • a fourth aspect of the invention providing a combination of a tool element and a holder therefor, the tool element comprising an endless band movable around an endless path, and the holder comprising a body defining a work-piece receiving space and a drive element in driving engagement with the endless band for moving the endless band around the endless path, the endless path having a portion thereof extending across said space.
  • a hand tool comprising a body having a work-piece receiving space, and a tool element, the tool element comprising an endless band movable around an endless path and drive means for moving the endless band around the endless path, the endless path having a portion thereof extending across said space.
  • the work-piece receiving space opens onto the periphery of the body.
  • the body comprises a pair of spaced apart projecting limbs between which the work-piece receiving space is defined, the portion of the endless path extending across said space being located adjacent the free ends of the limbs.
  • the body may be of unitary construction with the endless band supported therein.
  • the body may comprise first and second body portions detachably connected together, with the endless band being mounted on the second body portion.
  • Figure 1 is a schematic plan view of a tool according to a first embodiment
  • Figure 2 is a side view of the tool
  • FIG. 3 is a similar view to Figure 2 with the exception that is shown as two parts detached;
  • Figure 4 is a schematic side view of the tool illustrating a saw blade used in the tool and a mechanism for driving the saw blade;
  • Figure 5 is a fragmentary plan view of a saw blade for use with the tools according to the first embodiment
  • Figure 6 is an end view of the saw blade
  • Figure 7 is a fragmentary perspective view of the saw blade on an enlarged scale
  • Figure 8 is a schematic side view of a tool according to a second embodiment
  • Figure 9 is a schematic side view of a first part of the tool of Figure 8; and Figure 10 is a schematic side view of a second part of the tool according to the second embodiment.
  • FIG. 1 to 7 of the drawings there is shown a tool 10 according to the first embodiment for performing sawing operations on a work-piece (not shown).
  • the tool 10 has a tool body comprising a first body portion 11 and a second body portion 12.
  • the two body portions 11 , 12 are adapted to be detachably connected together.
  • the second body portion 12 has a section 13 at one end thereof defining a spigot 14 adapted to be received in a complementary socket 14 formed in an adjacent end section 15 of the first body portion 11.
  • the first body portion 11 includes a locking mechanism operable by way of an element 17, such as a button, for releasably securing the two body portions 11 , 12 together when the spigot 14 on the second body portion 12 is received in the socket of the first body portion 11.
  • the first body portion 11 is configured to define a hand grip portion 18, and the second body portion 12 as configured to define a further hand grip portion 19.
  • the first body portion 11 includes a drive motor 21 and a drive cog 23 drivingly connected to the drive motor.
  • the drive motor 21 is powered by a power source, such as a battery (not shown) accommodated within the first body portion 11 , or alternatively from a mains supply.
  • a switch 22 is provided for controlling operation of the drive motor 21.
  • the second body portion 12 includes a pair of spaced apart limbs 25 extending from the end section 13 and defining a work-piece receiving space 27 therebetween.
  • the space 27 opens onto the periphery of the tool 10 adjacent the free ends of the limbs 25, as shown in the drawings.
  • the tool 10 further includes a tool element 31 for performing a sawing operation on a work-piece.
  • the tool element 31 is accommodated in a housing 32 formed by the second body portion 12.
  • the second body portion 12 provides a holder for the saw blade 31.
  • the tool element 31 comprises a saw blade configured as an endless band 33.
  • the endless band 33 providing the saw blade passes around guide means 35 in the form of guide rollers 36 mounted on the second body portion 12.
  • the guide rollers 36 include two end rollers 36a, one mounted on each limb 25 adjacent the free end thereof. With this arrangement, the endless band 33 travels around an endless path which traverses the space 27 adjacent the free ends of the limbs 25 such that there is a run 37 of the endless band which extends across the space 27.
  • a further run 39 of the endless band 33 passes over a drive pulley 41 in frictional engagement therewith.
  • the drive pulley 41 is drivingly coupled to a driven gear 43 which meshes in driving engagement with the drive cog 23 when the first and second body portions 11 , 12 are connected together, as shown in Figure 4 of the drawings.
  • drive from the motor 21 is transferred through meshing gears 23, 43 to the drive pulley 41 which then drives the endless band 33 around its endless path.
  • the drive pulley 41 and the meshing gears 23, 43 thus co-operate to provide a coupling mechanism for drivingly connecting the motor 21 to the tool element 31.
  • the endless band 33 can be of any appropriate form.
  • the endless band comprises a multitude of intertwined strands 45, as best seen in Figures 5, 6 and 7.
  • the strands 45 may be of any appropriate material such as wire.
  • the strands 45 have protrusions 47 thereon which form teeth on the intertwined structure.
  • Such a blade construction allows a sawing operation to be performed from any direction relative to the blade.
  • the housing 32 may be disposable in a sense that it is replaced each time a replacement saw blade 31 is required.
  • the saw blade 31 is supplied fitted into the housing 32 defining by the second body portion 12 which is simply then connected to the first body portion 11 , as described previously.
  • the gears 23, 43 move into meshing engagement. No further action is required on the part of the user in order to fit the replacement blade 31 to the tool 10 and prepare it for operation.
  • This arrangement also facilitates easy exchange of saw blades 31.
  • it may be there are various types of saw blades 31 available for different cutting techniques and materials. Each saw blade 31 would be accommodated in its own housing 32 which can be fitted onto, and removed from, the tool 10 as necessary.
  • the space 27 defined therebetween is elongated so as to provide a clearance into which a work-piece can extend during a cutting operation.
  • the tool 10 according to the first embodiment can be used for any appropriate cutting operation.
  • One particular application of the tool 10 is in the surgical arena as a sternal saw for open heart surgery.
  • the tool 10 according to the second embodiment is similar in many respects to the tool according to the first embodiment except for the manner in which the first and second body portions 11 , 12 are detachably connected together.
  • the first body portion 11 includes a section 51 defining a slot 53 into which the second body portion 12 is slidably received and retained.
  • the section 51 includes two spaced apart rails 55 between which the second body portion 12 is engaged, as shown in Figure 8 of the drawings.
  • the gears 23, 43 are in meshing engagement such that drive applied by the motor 21 is transmitted through the intermeshing gears to the drive pulley 41 which in turn drives the tool element 31 around its endless path.
  • the second body portion 12 may be adapted for a single use only such that it is disposed of at the time the saw blade 31 requires replacement. Similarly, it can be exchanged as required.
  • both grip portions 18, 19 are provided on the first body portion 11.
  • the two embodiments described both relate to tools for performing sawing operations. It should be understood that the invention may also be applied to tools for performing working operations other than sawing, including filing and buffing. In such cases all that would be required is to provide the endless band 33 in an appropriate form for the required purpose.
  • the invention need not necessarily be limited to an arrangement where the tool element is in the form of an endless band.
  • the tool element may comprise an electrically conductive cutter element (such as a wire) spanning the space between the free ' ends of the limbs 25 on the second body portion 12.
  • the cutter element would then be electrically connected to an electrical supply carried in the first body portion 11 , such that when an electrical circuit incorporating the cutter element was closed, the cutter element would be heated through electrical resistance in order to perform a cutting operation.
  • the tool according to the invention may be adapted to receive accessories to broaden the utility and functionality of the tool.
  • the tool may have an accessory such as a vacuum cleaner head which can be connected to the first body portion 11 for performing vacuum cleaning functions.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Mechanical Engineering (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Dentistry (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Epidemiology (AREA)
  • Sawing (AREA)

Abstract

L'invention concerne un outil à main (10) permettant de réaliser une tâche (telle qu'un sciage) sur une pièce. L'outil (10) comprend une première partie (11), une deuxième partie (12) fixée de manière amovible à la première partie, et un élément outil (31) monté sur la deuxième partie. La deuxième partie (12) sert de support à l'élément outil (31) et permet l'échange ou le remplacement de cet élément outil. L'élément outil (31) est entraîné par un moteur d'entraînement (21), généralement un moteur électrique qui fonctionne à l'aide d'une batterie. Le moteur (21) est logé dans la première partie (11) et un mécanisme de couplage, implanté entre la première partie (11) et la deuxième partie (12), permet de raccorder le moteur (21) à l'élément outil (31) en termes d'entraînement. Généralement, l'élément outil (31) comprend une bande continue (33) destinée à se déplacer autour d'une voie continue. La deuxième partie (12) comprend une paire de bras (25) espacés avec une voie de défilement (37) de la bande continue (33) s'étendant entre les bras (25) adjacents, à leurs extrémités libres. La voie de défilement (37) de la bande peut être appliquée sur une pièce pour réaliser une opération sur cette pièce.
PCT/AU2004/001501 2003-10-31 2004-10-29 Outil Ceased WO2005042213A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2003906003A AU2003906003A0 (en) 2003-10-31 Tool
AU2003906003 2003-10-31

Publications (1)

Publication Number Publication Date
WO2005042213A1 true WO2005042213A1 (fr) 2005-05-12

Family

ID=34528653

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2004/001501 Ceased WO2005042213A1 (fr) 2003-10-31 2004-10-29 Outil

Country Status (1)

Country Link
WO (1) WO2005042213A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2460738A (en) * 2008-06-02 2009-12-16 M B Safety Ltd Device for cutting through a crash helmet
US20240285326A1 (en) * 2021-08-11 2024-08-29 Gursharan Singh Chana Apparatus for use in surgery
USD1042832S1 (en) 2021-06-15 2024-09-17 Soletech Limited Veterinary saw
USD1045080S1 (en) 2021-06-15 2024-10-01 Soletech Limited Veterinary saw

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6126670A (en) * 1998-12-16 2000-10-03 Medtronic, Inc. Cordless surgical handpiece with disposable battery; and method
WO2001013802A1 (fr) * 1999-08-19 2001-03-01 Lee Hee Young Scie a mouvement alternatif s'utilisant dans des angles variables et des directions multiples
DE20305628U1 (de) * 2003-04-04 2003-06-18 Macauto Industrial Co., Ltd., Yung-Kang, Tainan Elektrisches Gartengerät mit einem auswechselbaren Arbeitsstück

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6126670A (en) * 1998-12-16 2000-10-03 Medtronic, Inc. Cordless surgical handpiece with disposable battery; and method
WO2001013802A1 (fr) * 1999-08-19 2001-03-01 Lee Hee Young Scie a mouvement alternatif s'utilisant dans des angles variables et des directions multiples
DE20305628U1 (de) * 2003-04-04 2003-06-18 Macauto Industrial Co., Ltd., Yung-Kang, Tainan Elektrisches Gartengerät mit einem auswechselbaren Arbeitsstück

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; Class P31, AN 2004-582607 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2460738A (en) * 2008-06-02 2009-12-16 M B Safety Ltd Device for cutting through a crash helmet
USD1042832S1 (en) 2021-06-15 2024-09-17 Soletech Limited Veterinary saw
USD1045080S1 (en) 2021-06-15 2024-10-01 Soletech Limited Veterinary saw
US20240285326A1 (en) * 2021-08-11 2024-08-29 Gursharan Singh Chana Apparatus for use in surgery

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