EP1684953B1 - Vorrichtung zum schneiden von durchführungen in einen block aus isoliermaterial - Google Patents

Vorrichtung zum schneiden von durchführungen in einen block aus isoliermaterial Download PDF

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Publication number
EP1684953B1
EP1684953B1 EP04805364A EP04805364A EP1684953B1 EP 1684953 B1 EP1684953 B1 EP 1684953B1 EP 04805364 A EP04805364 A EP 04805364A EP 04805364 A EP04805364 A EP 04805364A EP 1684953 B1 EP1684953 B1 EP 1684953B1
Authority
EP
European Patent Office
Prior art keywords
underside
base
blades
free
longitudinal
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.)
Expired - Fee Related
Application number
EP04805364A
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English (en)
French (fr)
Other versions
EP1684953A1 (de
Inventor
Lionel Marcon
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.)
Pierre Grehal et Cie SA
Original Assignee
Pierre Grehal et Cie SA
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 Pierre Grehal et Cie SA filed Critical Pierre Grehal et Cie SA
Publication of EP1684953A1 publication Critical patent/EP1684953A1/de
Application granted granted Critical
Publication of EP1684953B1 publication Critical patent/EP1684953B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B26B29/06—Arrangements for guiding hand cutting tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B3/00—Hand knives with fixed blades
    • B26B3/08—Hand knives with fixed blades specially adapted for cutting cardboard, or wall, floor, or like covering materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/008—Hand knives with one or more detachable blades for performing several incisions simultaneously; for cutting cubes
    • 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/06—Grooving involving removal of material from the surface of the work
    • 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
    • Y10T83/02—Other than completely through work thickness
    • Y10T83/0304—Grooving

Definitions

  • the invention generally relates to the field of cutting tools.
  • the invention relates to a device for cutting technical passages in a free surface of a block of insulating material, in particular expanded polystyrene or polyurethane.
  • These technical passages are grooves formed on the free surface of the block, intended to pass typically sheaths in which electrical wires run.
  • a cutting device according to the preamble of claim 1 is known from the document GB-A-422,596 .
  • the present invention aims to overcome the defects mentioned above.
  • the cutting device of the invention comprises a base resting on the free surface of the block by a lower face, a handle fixed on the base, and knives integral with the base or the handle projecting under the underside .
  • the device comprises two knives having respective mutually parallel planar side portions, these portions extending from the underside in planes perpendicular to that face, these planes defining the longitudinal direction normal displacement of the device on the free surface.
  • said side portions of the knives have elongate shapes and extend obliquely from the lower face, a rear longitudinal side of this face.
  • the knives each have a free end bent towards the other knife, extending the side portion of a side opposite to the lower face, this free end extending in a plane parallel to the underside.
  • the free end of one of the knives is offset rearwardly relative to the free end of the other knife.
  • the free ends of the knives have rear edges raised towards the underside.
  • the handle has an elongated shape and extends from the base substantially in the extension of the knives, a longitudinal side before the lower face opposite the rear longitudinal side.
  • the device comprises means for selectively varying the angle formed by the handle with the underside of the base.
  • the device comprises a guide T, provided with a longitudinal profile having an angled section and a transverse rod integral with the profile, the base comprising removable fastening means on the rod with a transverse spacing adjustable relative to to the profile.
  • the knives are removably attached to the base.
  • the cutting device 2 illustrated on the figure 2 is intended to create technical passages 3 in a free surface 11 of a block 1 of insulating material.
  • the cutting device 2 is suitable for example for the creation of technical passages 3 in prefabricated rectangular panels of large length and width and thin relative to the length or width.
  • These panels are each constituted by a plasterboard 4 and a block 1 of insulating material in the form of a plate, glued on a large face of the gypsum board 4.
  • the gypsum boards and insulating material have the same length and width as the panel.
  • the free surface 11 in which the cutting device 2 creates the technical passage is the large face of the block 1 opposite the plasterboard 4.
  • the device aims to create passages 3 which are grooves of rectangular section in a plane perpendicular to the longitudinal direction in which said groove extends. These grooves are open on the free face 11 and delimited by two opposite side walls 31 and a bottom 32, as shown in FIG. figure 6 .
  • the cutting device 2 comprises a base 20 resting on the free surface 11 of the block 1 by a flat bottom face 21, a handle 30 fixed to the base 20, and knives 40 integral with the base 20 or the handle 30 projecting under the lower face 21.
  • the knives 40 protrude into the thickness of the block 1.
  • the device 2 comprises two knives 40 having respective flat lateral portions 41 mutually parallel.
  • These portions 41 extend from the lower face 21 in planes perpendicular to this face, and allow to cut the side walls 31 of the passage 3.
  • the planes in which the lateral portions 41 extend define the normal longitudinal direction of displacement of the cutting device 2 on the free surface 11.
  • the lateral portions 41 of the knives 40 each have an elongated shape and extend obliquely from the lower face 21, to a rear longitudinal side of this face 21.
  • the lateral portions 41 are in the form of parallelograms and are each delimited by two longitudinal short edges 411 mutually parallel, and two mutually parallel oblique long edges 412. Considered transversely, these oblique edges 412 form an angle of approximately 45 ° with the lower face 21.
  • the oblique edge 412 turned from a front longitudinal side opposite the rear side is sharpened and constitutes the cutting edge of the lateral portion 41 of the knife 40.
  • the cutting device 2 normally moves on the free surface 11 in the longitudinal direction, from rear to front.
  • One of the short edges 411 extends in the immediate vicinity of the lower face 21.
  • the knives 40 also each have a free end 42 bent towards the other knife 40, extending the lateral portion 41 by the short edge opposite the lower face 21. This free end 412 extends in a plane parallel to the face lower 21.
  • the free ends 42 cut the bottom 32 of the passage 3.
  • the free ends 42 each have the shape of a quadrilateral, defined by the short edge 411 common with the lateral portion 41, a leading edge 422 contiguous to the short edge 411 and facing forward, an extreme edge 423 opposite at the short edge 411 and extending substantially perpendicular to the leading edge 422, and a trailing edge 421 connecting the short edge 411 to the edge 423.
  • the leading edge 422 extends rearwardly from the short edge 411. It is sharpened and constitutes the cutting edge of the free end 42 of the knife 40. It extends over more than half of the transverse spacing between the lateral parts 41 of the two knives, this gap defining the transverse width of the passage 3.
  • the rear edges 421 are slightly raised towards the lower face 21.
  • the free end 42 of one of the knives 40 is shifted rearwardly relative to the free end 42 of the other knife 40.
  • the leading edges 422 form a V pointing towards the rear, one of the branches of the V being shifted backwards relative to the other.
  • the knives 40 are adapted to cut passages of 35 millimeters transverse width, and 30 millimeters deep.
  • the size of the side portions and the free ends may be modified to cut sections of different size sections, smaller or larger.
  • the base 20 comprises two substantially identical metal brackets 22, each having a horizontal plate 221 and a vertical plate 222 perpendicular to the horizontal plate.
  • the vertical plates 222 of the two brackets 22 extend parallel to each other, and parallel to the longitudinal direction.
  • the horizontal plates 221 extend in the transverse extension of one another and define the lower face 21.
  • the knives 40 each comprise an upper portion 43 bent, secured to the side portion 42 by the short edge 411 closest to the base 20.
  • This upper portion 43 comprises a connecting portion 431 secured to said short edge 411 and extending substantially parallel to the lower face 21, and an attachment portion 432 extending substantially perpendicularly to the connecting portion 431 and being housed between the two vertical plates 222.
  • the connecting and fixing portions are thin plates, the fastening portion 432 extending longitudinally parallel to the two vertical plates 222.
  • the two vertical plates 222 and the attachment portions 432 of the two knives 40 are each pierced by two orifices. These orifices are arranged in the extension of each other to form two transverse perforations.
  • the base 20 comprises two bolts 23 engaged in these perforations and pressing against each other the two vertical plates 222 and the two fixing parts 432 so as to secure them.
  • the knives 40 are thus fixed on the base 20 so as to be easily removable. To remove them, it is sufficient to slightly loosen the bolts 23 to move the vertical plates 222 away, and to move the fixing parts 433 so as to slide the bolts from the orifices 433 along the notches 434 to the free edges of the parts fasteners 432.
  • the lower face 21 typically has the shape of a square of 9 centimeters of side.
  • the handle 30 has an elongate shape and extends from the base 20, a longitudinal side before the lower face 21. It extends in a generally oblique direction, substantially in the extension of the side portions 41 of the knives 40.
  • the handle 30 is formed of a hollow metal tube, and comprises a first longitudinal straight segment 31 integral with the base 20 and substantially parallel to the lower face 21, and a second straight segment 32 extending the first from a side opposite to the base 20, this second segment 32 extending obliquely forwardly from the first, away from the lower face 21.
  • the free end of the second segment 32 is a handle 33 adapted to be manually entered by a user of the device to move it in a longitudinal direction.
  • the brackets 22 each comprise an arm 223 extending longitudinally forwards from the vertical plates 222, and constituting fixing flanges of the first segment 31 of the handle 30.
  • a U-shaped piece 224 overlaps the two flanges 223. Its two arms extend parallel to the two flanges, an outer side thereof.
  • the handle is welded to the flanges and to the U-shaped part, this part being also welded to the flanges.
  • the cutting device 2 comprises a guide T 50, provided with a longitudinal profile 51 having a square section and a transverse rod 52 integral with the profile, the base 20 comprising means 24 for removable attachment on the rod 52 with a transverse spacing adjustable with respect to the profile 51.
  • the profile 51 comprises a horizontal flange 511 extending in the same plane as the lower face 21, and a vertical flange 512 extending perpendicularly to the horizontal flange, in the longitudinal direction.
  • the vertical wing 512 is integral with a longitudinal edge of the horizontal flange 511 opposite the base 20.
  • the vertical and horizontal flanges have opposite front and rear edges slightly raised.
  • the profile 51 is intended, as shown in figure 2 , following an edge of the insulating plate 1, the horizontal flange 51 being placed on the free surface 11, and the vertical flange 52 against the edge of this plate 1.
  • the transverse rod 52 is welded to one face of the horizontal flange 51 opposite to the insulating plate 1, and extends transversely on respective faces of the horizontal plates 221 of the base 20 opposite to the insulating plate 1.
  • the removable fastening means 24 comprise a stirrup 241 protruding from one of the horizontal plates 221 and in which the transverse rod 52 is slidably engaged, and a locking screw 242 engaged in a hole of the stirrup 241 and allowing to press the rod against the horizontal plate to block it in translation.
  • the guide T 50 thus makes it possible to longitudinally guide the movement of the cutout 2, the profile 51 moving along the edge of the plate 1 with the base 20 and the knives 40.
  • the transverse rod 52 typically has a transverse width of 60 centimeters, which makes it possible to adjust the position of the passage 3 in a spacing range with respect to the edge of the plate 1 ranging from at least 7.5 centimeters to at most 55 centimeters. .
  • the longitudinal length of the device is about 52 centimeters, including handle.
  • the cutting device is very easy to use. To cut a passage 3 in a plate, the device is first positioned at a longitudinal edge of the plate, the profile 51 being disposed on an edge of the plate, and the spacing between the profile 51 and the base 20 is adjusted. by means of the removable fastening means 24.
  • the entire cutting device is then longitudinally pulled by the handle 30 to move this device through the entire plate.
  • the knives cut the insulation to create the passage, the cut-off insulating flange coming out naturally from the passage 3 under the effect of the back edges 421 raised from the knives, as shown in FIG. figure 2 .
  • the cutting device 2 comprises means for selectively varying the angle formed by the handle 30 with the lower face 21 of the base 20.
  • the handle 30 is in this case not welded to the base 20, but mounted hinged thereto around a transverse axis pivot connection. He then wears a platinum extending against one of the vertical plates 222 in which is cut a light in a circular arc centered on the transverse axis. Said vertical plate 222 carries a screw engaged in the light, a nut for locking the plate in the desired angular position.
  • the device is of very simple construction, and is therefore inexpensive.
  • the knives can be exchanged without having to separate the two brackets constituting the base of the device. Simply unscrew the bolts that press the two brackets against each other to extract the knives.
  • the guide T allows both to accurately adjust the transverse position of the passage to be cut, and to guide the device in its movement.
  • the raised back edge of the knives pulls out the insulation blank of the passage. The user can grab it without effort.
  • the oblique inclination of the blades and the handle allows a good transmission of the efforts of the user, without the risk of causing the tilting of the device during cutting.
  • the device of the invention has been described in the context of its application to the cutting of an insulating plate bonded to a plasterboard. It can also be used to cut passages in insulating blocks of other shapes, provided that these blocks have a free face substantially flat allowing movement of the base of the device.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)

Claims (10)

  1. Vorrichtung zum Schneiden von Durchführungen in einer freien Oberfläche (11) eines Blocks (1) aus Isoliermaterial, nämlich aus Polystyren- oder Polyurethanschaum, die Vorrichtung (2) umfassend eine Basis (20), die mit einer Unterseite (21) auf der freien Oberfläche (11) ruht, einen Stiel (30), der an der Basis (20) befestigt ist, und zwei Schneiden (40), die mit der Basis (20) oder dem Stiel (30) einstückig sind und unter der Unterseite (21) hervorstehen, dadurch gekennzeichnet, dass die Schneiden (40) jeweilige ebene Seitenteile (41) aufweisen, die zueinander parallel sind und jeweils ein freies Ende aufweisen (42), das in Richtung auf die andere Schneide (40) angewinkelt ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die ebenen Seitenteile (41) sich von der Unterseite (21) in zu dieser Seite rechtwinkligen Ebenen erstrecken, wobei die Ebenen die normale Längsbewegungsrichtung der Vorrichtung auf der freien Oberfläche (11) definieren.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die freien Enden (42) der Schneiden (40) jeweils den entsprechenden Seitenteil (41) einer Seite gegenüber der Unterseite (21) verlängern, wobei sich dieses freie Ende (42) in einer Ebene parallel zur Unterseite (21) erstreckt.
  4. Vorrichtung nach einem der Ansprüche 2 und 3, dadurch gekennzeichnet, dass das freie Ende (42) einer der Schneiden (40) im Verhältnis zum freien Ende (42) der anderen Schneide (40) der Länge nach versetzt ist.
  5. Vorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die freien Enden (42) der Schneiden (40) hintere Kanten (421) aufweisen, die zur Unterseite (21) hin angehoben sind.
  6. Vorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die Seitenteile (41) der Schneiden (40) längliche Formen haben und sich schräg von der Unterseite (21), von einer hinteren Längsseite davon, her erstrecken.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Stiel (30) eine längliche Form aufweist und sich von der Basis (20) im Wesentlichen in der Verlängerung der Schneiden (40), von einer Längsvorderseite der Unterseite (21) gegenüber der Längsrückseite, her erstreckt.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass sie Mittel aufweist zum wahlweisen Ändern des Winkels, den der Stiel (30) mit der Unterseite (21) der Basis (20) bildet.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie ein Führungs-T-Stück (50) umfasst, das mit einem Längsprofil (51), das einen gewinkelten Querschnitt aufweist, und einem Querstab (52), der mit dem Profil (51) einstückig ist, ausgestattet ist, wobei die Basis (20) abnehmbare Befestigungsmittel auf dem Stab (52) mit einem zum Profil (51) einstellbaren Querabstand umfasst.
  10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schneiden (40) abnehmbar an der Basis (20) befestigt sind.
EP04805364A 2003-11-03 2004-11-02 Vorrichtung zum schneiden von durchführungen in einen block aus isoliermaterial Expired - Fee Related EP1684953B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0312884A FR2861627B1 (fr) 2003-11-03 2003-11-03 Dispositif de decoupe de passages techniques dans un bloc de materiau isolant
PCT/FR2004/002813 WO2005044526A1 (fr) 2003-11-03 2004-11-02 Dispositif de decoupe de passages techniques dans un bloc de materiau isolant

Publications (2)

Publication Number Publication Date
EP1684953A1 EP1684953A1 (de) 2006-08-02
EP1684953B1 true EP1684953B1 (de) 2008-09-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04805364A Expired - Fee Related EP1684953B1 (de) 2003-11-03 2004-11-02 Vorrichtung zum schneiden von durchführungen in einen block aus isoliermaterial

Country Status (5)

Country Link
US (1) US20070209495A1 (de)
EP (1) EP1684953B1 (de)
DE (1) DE602004016372D1 (de)
FR (1) FR2861627B1 (de)
WO (1) WO2005044526A1 (de)

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
US8506603B2 (en) 2009-10-14 2013-08-13 K2M, Inc. Surgical rod scorer and method of use of the same
WO2011047166A1 (en) * 2009-10-14 2011-04-21 K2M, Inc. Surgical rod scorer and method of use of the same
US9144447B2 (en) 2009-10-14 2015-09-29 K2M, Inc. Surgical rod scorer and method of use of the same
US10038356B2 (en) * 2012-05-22 2018-07-31 General Electric Company Generator rotor refurbishing system and method of repairing a generator rotor
US9393709B2 (en) 2012-06-26 2016-07-19 K2M, Inc. Mesh cage scoring and cutting system
US20200047362A1 (en) * 2018-08-13 2020-02-13 Arquimedes Hernandez Apparatus for measuring and cutting drywall
CN109015584B (zh) * 2018-08-14 2022-01-28 中车唐山机车车辆有限公司 画线及打磨工具夹持装置
CN109226673A (zh) * 2018-09-28 2019-01-18 莱芜市白象消防器材有限公司 一种制作水冷轴承座白模一次成型的工具
ES2911849R1 (es) * 2019-02-25 2022-10-26 Saint Gobain Isover Iberica S L Herramienta de machihembrados en conductos de lana mineral o similar
JP7021812B1 (ja) * 2021-05-27 2022-02-17 広之 小田 シート切断具及びシート切断方法

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Publication number Priority date Publication date Assignee Title
GB422596A (en) * 1934-01-11 1935-01-15 Ernest Chalmer An improved cutting tool for use with mill-board, wall-board and other like material
US2650532A (en) * 1950-06-17 1953-09-01 Dionis E Moldowan Sod cutter
US3242780A (en) * 1964-05-01 1966-03-29 Engel Equipment Inc Duct board grooving machine having inside dimension compensator
US3274868A (en) * 1965-01-06 1966-09-27 Theodore M Williams System for cutting fiberglass duct board
US3596356A (en) * 1968-07-11 1971-08-03 Cotton John J Grooving knife assembly
US4288921A (en) * 1979-05-02 1981-09-15 Rhynes Oden H Adjustable fish scorer
US4983081A (en) * 1989-06-01 1991-01-08 Glass Master Corporation Apparatus and method for forming shiplap duct
US5077899A (en) * 1989-12-01 1992-01-07 Malco Products, Inc. Fiberglass panel cutter with interlocking blades
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US5231764A (en) * 1992-06-03 1993-08-03 Kenneth Chang Cutter for a plasterboard sheet
US5265342A (en) * 1992-10-29 1993-11-30 Lang Jr Joseph D Drywall cutting tool
DE29707906U1 (de) * 1997-05-02 1997-10-09 Pfleiderer Dämmstofftechnik GmbH, 92318 Neumarkt Schneidvorrichtung zum Zurichten von Bodenverbundelementen
FR2811929B1 (fr) * 2000-07-24 2003-06-13 Jehan Desbat Dispositif de decoupage d'un materiau tel qu'une feuille de materiau souple ou semi rigide

Also Published As

Publication number Publication date
DE602004016372D1 (de) 2008-10-16
FR2861627A1 (fr) 2005-05-06
WO2005044526A1 (fr) 2005-05-19
EP1684953A1 (de) 2006-08-02
US20070209495A1 (en) 2007-09-13
FR2861627B1 (fr) 2006-06-23

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