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WO1990009867A1 - Piege a poussiere utilise avec des forets - Google Patents

Piege a poussiere utilise avec des forets Download PDF

Info

Publication number
WO1990009867A1
WO1990009867A1 PCT/GB1990/000320 GB9000320W WO9009867A1 WO 1990009867 A1 WO1990009867 A1 WO 1990009867A1 GB 9000320 W GB9000320 W GB 9000320W WO 9009867 A1 WO9009867 A1 WO 9009867A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
dust trap
dust
drill bit
drilled
Prior art date
Application number
PCT/GB1990/000320
Other languages
English (en)
Inventor
Robert William Thomas
Original Assignee
Robert William Thomas
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 Robert William Thomas filed Critical Robert William Thomas
Publication of WO1990009867A1 publication Critical patent/WO1990009867A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0053—Devices for removing chips using the gravity force
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • This invention concerns dust traps for use with drills. Drilling of holes using, particularly, electric drills produces a large amount of dust, especially when drilling into plaster, concrete or brickwork. The dust produced can be very fine and so difficult to remove even with a vacuum cleaner. Furthermore, cleaning up after a drilling operation adds to the time taken for a particular job and possibly the cost of that job.
  • An object of this invention is to provide a dust trap for use with drills to prevent or at least reduce the spread of dust from a drilling operation.
  • a dust trap for use with a drill comprising a chamber having at one side an entry for a drill bit and at an opposite side an exit through which the drill bit extends to contact the surface to be drilled.
  • the chamber may be generally cylindrical and preferably has a flat face at its exit side for contacting the surface to be drilled.
  • the exit side of the chamber is preferably fixed to the surface to be drilled in some way so as to prevent dust escaping between the surface being drilled and said face.
  • the exit face of the chamber may be coated with a contact adhesive so that the dust trap can be pressed onto the surface to be drilled to be retained there during the drilling operation.
  • That contact adhesive will preferably be protected by a peelable barrier layer, the barrier layer being removed before the dust trap is to be sited on the surface to be drilled.
  • the perimeter of the chamber may be provided with location points for tacks, nails or the like to hold the chamber against the surface to be drilled.
  • the exit face of the chamber may be provided with a layer of compressible material, such as foam rubber or the like to provide a seal between the exit face of the chamber and the surface being drilled.
  • the exit face of the chamber may also have a flat ring about the exit, such as of plastics material, which ring has in the direction away from the surface being drilled a divergent inner edge. That inner edge is divergent or angled to facilitate the falling into the chamber of dust from the drill bit.
  • one or more brushes positioned in the chamber to contact the drill bit to dislodge dust therefrom into the chamber.
  • the brush or brushes is or are preferably of wire.
  • two brushes will be arranged on opposite sides of the exit of the chamber.
  • the entry into the chamber is preferably cone shaped, so that the drill bit itself will form an opening therein of the appropriate size therefore again to reduce the possibility of dust being brought straight through the chamber and out via the entry point for the drill bit.
  • the preferred chamber will be cylindrical. Although, it may be of advantage to provide a dust trap having a quadrant section chamber for use in corners.
  • the chamber may be provided with an outlet whereby suction may be applied to remove dust and the like from the chamber possibly on a continuous basis during drilling to reduce further the risk of dust escaping to the surrounding atmosphere.
  • the outlet is preferably connectable to a vacuum cleaner. It is also preferred that, where such an outlet is provided, an air inlet be provided preferably with non-return valving so that air can be replaced in the chamber without dust escaping through the inlet.
  • chamber parts are separable whereby emptying of collected dust is possible.
  • chamber parts may be held together by screw threading, by resilient clipping means or any other suitable means whereby they may be separated.
  • the exit face of the chamber is preferably removable from the chamber for that purpose.
  • the dust trap of the invention will usually be sited on the surface to be drilled.
  • the chamber will be of transparent material to facilitate siting thereof.
  • the drill bit is then introduced into the entry to the chamber to form a hole in the entry cone and then drilling is continued as normal. During drilling any dust will come back into the chamber along the drill bit being dislodged by the wire brush or brushes or merely falling into the chamber.
  • Figure 1 is a side view of a dust trap
  • Figure 2 is a plan view of a dust trap
  • Figure 3 is a section on line A-A of Figure 2
  • Figure 4 is a side view of an alternative dust trap
  • Figure 5 is a plan view of yet another alternative dust trap.
  • FIG 6 is a side view of yet a further alternative dust trap.
  • a dust trap 10 for use with a drill comprises a chamber 12 having an entry 14 for a drill bit and an exit 16 where the drill bit emerges from the chamber.
  • the entry 14 is formed in wall 18 of frusto-conical chamber part 20 and the exit 16 is formed in wall 22 of cylindrical chamber part 24, the frusto- conical part 20 and cylindrical part 24 forming together the chamber 12.
  • the entry 14 comprises a hollow cone 25 with its point entering the chamber.
  • the exit 16 comprises a circular opening in wall 22 of the cylindrical part 24 of the chamber 12.
  • the chamber 12 is preferably formed of transparent plastics material and the entry cone 14 is preferably formed of plastics material.
  • the exit 16 is preferably surrounded by a layer 28 of compressible material such as of foam rubber or the like, which layer preferably extends to cover the whole of the wall 22 apart from the exit 16.
  • the exit 16 is further surrounded by a thin plastics ring 30 which has an angled inner edge to form an opening having divergent sides in the direction away from a surface to be drilled.
  • a pair of brushes 34 Internally of the chamber 12 mounted on the inner side of the wall 22 are a pair of brushes 34, preferably of wire, in facing relationship.
  • the wall 22 may be separable from the chamber so that collected dust may be emptied out.
  • the wall 22 may be screw-threadedly attached to the chamber 12 for that purpose or may be secured to chamber by resilient clip means allowing relatively easy removal and replacement.
  • the plastics ring will be provided with a contact adhesive coating protected initially by a peelable barrier layer, so that the dust trap 10 can be fixed to a surface to be drilled in such a way as not to harm the surface.
  • the chamber 12 instead of the contact adhesive, can be provided with location points 40 for tacks, nails or the like to be used to hold the dust trap against a surface to be drilled.
  • the embodiment of Figure 4 is identical with the embodiment of Figures 1 to 3 of the accompanying drawings.
  • FIG 5 an embodiment of the invention is shown which can be used for drilling in corners or other restricted spaces in which the chamber 12' has a quadrant section and the brushes are at right angles to each other.
  • the embodiment of Figure 5 is the same as the embodiment of Figures 1 to 3 of the accompanying drawings.
  • Figure 6 of the accompanying drawings the embodiment shown is virtually identical to that of Figure 4 and so will not be described in detail, like reference numerals being used for' ease of reference.
  • the main difference in the embodiment of Figure 6 is the provision of an outlet 46 for connection to a suction source, such as a vacuum cleaner, and an inlet 48 in the form of a non-return valve; whereby collected dust can be removed from the chamber 12 continuously during a drilling operation.
  • the dust trap is positioned against or on the surface to be drilled and the drill bit inserted into the entry 14.
  • the drill bit as it rotates will force a hole through the entry cone of the same size as the drill bit itself. That is to prevent dust coming back from the surface and out through the entry point.
  • the drilling operation is then continued as normal. Dust from the hole being drilled will be drawn back into the dust trap usually along the drill bit itself where it will be dislodged by the brushes to fall into the chamber 12.
  • the collected dust may be removed after the drilling operation, when the dust trap has separable parts, or continuously during drilling when the dust trap is connectable to suction.
  • the layer of compressible material on the outer surface of wall 22 forms an effective seal between the chamber and the surface so that dust cannot escape between the two.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

Un piège à poussière (10) utilisé avec un foret comprend une chambre (12) présentant sur un côté (18) une entrée (14) destinée à une mèche, et sur un côté opposé une face de sortie (22) dans laquelle s'étend la mèche, afin de venir au contact de la surface à percer. La poussière provoquée par l'opération de perçage est ramenée dans la chambre par ladite mèche et est récupérée.
PCT/GB1990/000320 1989-03-01 1990-03-01 Piege a poussiere utilise avec des forets WO1990009867A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8904614.8 1989-03-01
GB898904614A GB8904614D0 (en) 1989-03-01 1989-03-01 Dust trap for use with drills

Publications (1)

Publication Number Publication Date
WO1990009867A1 true WO1990009867A1 (fr) 1990-09-07

Family

ID=10652500

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/000320 WO1990009867A1 (fr) 1989-03-01 1990-03-01 Piege a poussiere utilise avec des forets

Country Status (3)

Country Link
AU (1) AU5157690A (fr)
GB (1) GB8904614D0 (fr)
WO (1) WO1990009867A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795351A1 (fr) * 1999-06-24 2000-12-29 Jean Max Rousselot Recuperateur et protecteur des dechets ou d'emanations generes par un ouvrage
BE1013643A3 (nl) * 2000-08-11 2002-05-07 Belde Jan Accessoire om te worden aangewend bij het boren.
WO2006087054A3 (fr) * 2005-02-18 2006-11-02 Kaercher Gmbh & Co Kg Alfred Appareil pour ramasser les saletes occasionnees lors d'un percage

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE195964C (fr) * 1900-01-01
DE589558C (de) * 1932-05-04 1933-12-11 Fischer Friedrich Staubauffanghaube
FR1005832A (fr) * 1947-10-03 1952-04-16 Tête spéciale pour recueillir et faire écouler les poussieres de forages au rocher
BE653033A (fr) * 1963-09-12 1964-12-31
DE1962848U (de) * 1967-02-13 1967-06-22 Guenter Schnura Stein- und bohrstaubfaenger fuer handbohrmaschinen.
DE1976159U (de) * 1967-09-30 1967-12-28 Kurt Schottenhamel Schutzvorrichtung an bohrmaschinen, insbesondere handschlagbohrmaschinen.
DE2002320A1 (de) * 1970-01-20 1971-07-29 Heinz Kern Schutzvorrichtung fuer Werkzeugmaschinen
FR2617072A1 (fr) * 1987-06-23 1988-12-30 Bes Claude Dispositif de recuperation des matieres extraites de corps divers par percage

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE195964C (fr) * 1900-01-01
DE589558C (de) * 1932-05-04 1933-12-11 Fischer Friedrich Staubauffanghaube
FR1005832A (fr) * 1947-10-03 1952-04-16 Tête spéciale pour recueillir et faire écouler les poussieres de forages au rocher
BE653033A (fr) * 1963-09-12 1964-12-31
DE1962848U (de) * 1967-02-13 1967-06-22 Guenter Schnura Stein- und bohrstaubfaenger fuer handbohrmaschinen.
DE1976159U (de) * 1967-09-30 1967-12-28 Kurt Schottenhamel Schutzvorrichtung an bohrmaschinen, insbesondere handschlagbohrmaschinen.
DE2002320A1 (de) * 1970-01-20 1971-07-29 Heinz Kern Schutzvorrichtung fuer Werkzeugmaschinen
FR2617072A1 (fr) * 1987-06-23 1988-12-30 Bes Claude Dispositif de recuperation des matieres extraites de corps divers par percage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795351A1 (fr) * 1999-06-24 2000-12-29 Jean Max Rousselot Recuperateur et protecteur des dechets ou d'emanations generes par un ouvrage
BE1013643A3 (nl) * 2000-08-11 2002-05-07 Belde Jan Accessoire om te worden aangewend bij het boren.
WO2006087054A3 (fr) * 2005-02-18 2006-11-02 Kaercher Gmbh & Co Kg Alfred Appareil pour ramasser les saletes occasionnees lors d'un percage
CN101119828B (zh) * 2005-02-18 2010-05-26 阿尔弗雷德·凯驰两合公司 钻屑收集装置

Also Published As

Publication number Publication date
GB8904614D0 (en) 1989-04-12
AU5157690A (en) 1990-09-26

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