EP1068937A1 - Lame de coupe pour couper des bourrelets adhésifs aux vitres - Google Patents

Lame de coupe pour couper des bourrelets adhésifs aux vitres Download PDF

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Publication number
EP1068937A1
EP1068937A1 EP00111233A EP00111233A EP1068937A1 EP 1068937 A1 EP1068937 A1 EP 1068937A1 EP 00111233 A EP00111233 A EP 00111233A EP 00111233 A EP00111233 A EP 00111233A EP 1068937 A1 EP1068937 A1 EP 1068937A1
Authority
EP
European Patent Office
Prior art keywords
cutting
fastening
opening
edge
section
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.)
Granted
Application number
EP00111233A
Other languages
German (de)
English (en)
Other versions
EP1068937B1 (fr
Inventor
Günter KLOSS
Walter Thomaschewski
Georg Harsch
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.)
C&E Fein GmbH and Co
Original Assignee
C&E Fein GmbH and Co
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 C&E Fein GmbH and Co filed Critical C&E Fein GmbH and Co
Publication of EP1068937A1 publication Critical patent/EP1068937A1/fr
Application granted granted Critical
Publication of EP1068937B1 publication Critical patent/EP1068937B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B7/00—Hand knives with reciprocating motor-driven blades

Definitions

  • the invention relates to a cutting knife for a cutting tool for cutting adhesive beads on window panes from Vehicles with a U-shaped angled cross section a first leg designed as a fastening part with a fastening opening for fastening to an oscillation drive, and a second leg, which acts as a cutting part is formed and via an intermediate web with the fastening part is connected, the fastening part being flat is and from the mounting opening to Cutting part tapered.
  • Such U-shaped angled cutting knives are, for example known from DE 86 17 670 U1 or EP 0 141 035 B1.
  • Such cutting knives are known, in particular, for cutting out of windshields used on motor vehicles, provided that one due to damage or leakage must be expanded.
  • the invention is therefore based on the object of an improved Cutting knife to create the optimized results when Removal of windows from motor vehicles allows.
  • This task is performed with a cutting knife according to the above mentioned type according to the invention solved in that the fastening part has an offset.
  • the position becomes by such an offset or angling the cutting edge in relation to the adhesive bead to be cut optimized when removing a windshield. As a result, lets the adhesive bead with considerably less effort cut through. The cutting edge is also immersed in the adhesive bead avoided.
  • the bend is formed at the end of the fastening part facing the intermediate web.
  • the bend is on a side facing away from the cutting part by a reference on the mounting opening convexly curved section Formed side edge of the fastening part.
  • the bend is on a side facing the cutting part by a in with respect to the fastening opening concavely curved section a side edge of the fastening part is formed.
  • the geometry of the cutting part in with regard to the fastening part further improved and a cheap Guiding the cutting knife when pulling the preferably Crescent-shaped cutting part made possible by the adhesive bead. Furthermore, an improved utilization of the stroke of the Oscillation drive for actually cutting through the adhesive bead enables.
  • the Cutting part at least on its attachment opening Side up with a serrated or saw cut.
  • the Cutting part on its side facing away from the fastening opening a cutting edge on its cutting edge with a point angle of at least 30 °.
  • the Cutting part on its side facing away from the fastening opening just a blunt edge.
  • the object in a cutting knife according to the type mentioned solved that the cutting part has a cross section with a Has a central section with mutually parallel outer surfaces, at least on the of the mounting opening facing side an acute-angled cutting edge connects.
  • the object solved the invention in that according to a cutting knife of the type mentioned at the cutting edge a section with parallel outer surfaces connected by one towards the other end slightly convex or tapered section followed.
  • the cutting part can at least its side facing the mounting opening one with a Have corrugated or saw cut cutting edge.
  • FIG. 1 shows a cutting tool according to the invention as a whole designated with the number 10.
  • the cutting tool 10 comprises an oscillation drive 12, whose drive shaft 14 with a high frequency in the range between around 5,000 and 28,000 vibrations per minute with a small swivel angle oscillating between about 0.5 ° and 5 ° is drivable.
  • On the drive shaft 14 is a total the number 16 designated cutting knife with a mounting opening 18 on a polygon 20 of the drive shaft 14 positively received and by a screw 22 with a flat head 24 on a thread of the drive shaft, not shown 14 of the cutting tool 10 attached.
  • the cutting knife is angled approximately U-shaped in cross section and has a first, designed as a fastening part 32 Leg in which the mounting opening 18 in the form of a Twelve edges is formed, as can be seen from Fig. 2.
  • the Fastening part 32 is connected to an intermediate web 36 second, outer leg connected as the cutting part 34th is trained.
  • the cutting tool 10 is used to cut through an adhesive bead 30 of a window pane 26 on a motor vehicle a body flange 28 is glued. It can be this e.g. to act as a windshield by means of a rotating Adhesive bead 30 completely sealing onto the A-pillar the body is glued on.
  • This adhesive bead 30 consists of usually made of a special polyurethane, the one possible high UV resistance and high mechanical and long-term resistance having. By gluing the windshield with the A-pillar, the windshield is essential to the stability of the body.
  • the adhesive bead is made of a very tough and stable material, its complete severing to remove the windshield for example after a rockfall damage noticeable effort, even if the advantageous effect of the oscillation drive 12 is taken into account becomes. For this reason, numerous cutting knife variants have already been made developed that are known in the art are.
  • the cutting knife 16 according to the invention shown in FIG. 2 is distinguished from the prior art in that his just formed mounting part 32 no straight side edges as in the prior art, but via a Bend 42 passes into the intermediate web 36.
  • the two side edges 38 and 40 of the fastening part 32 run starting from the fastening opening 18 in the direction of the intermediate web 36 so that the fastening part 32 to Intermediate web 36 tapers.
  • the offset 42 is now formed on the one hand by the fact that the side edge 38 of the fastening part 32 facing the cutting part 34 is slightly concavely curved in the region directly opposite the cutting part 34 with respect to the fastening opening 18, and on the other hand by the fact that on the cutting part 34 facing away from the side edge 40 shortly before the transition to the intermediate web 36 there is a greater curvature with a radius r 1 that is smaller than the radius of curvature of the other side edge 38.
  • the cutting part 34 is curved in a sickle shape, the sickle curvature with respect to the mounting opening 18 in this Embodiment is concave.
  • the cutting part 34 has the fastening opening 18 on it facing side a cutting edge 44 and at its the fastening opening 18 facing away from another cutting edge 46, both sharpened from time to time while working can be.
  • the cutting edge 44 of the cutting part 34 facing the fastening opening 18 has a radius of curvature r 2 which is significantly larger than the radius of curvature r 1 of the side edge 40 of the bend 42 on the fastening part 32.
  • the development 47 is a flat blank (usually a stamped part), from which by double bending the U-shaped angled cutting knife around bending edges 48 and 50 16 is produced.
  • the grinding of the cutting part 34 its two cutting edges 44, 46 is usually only after the bending process.
  • the relative position of the cutting part 34 is related on the fastening opening 18 through the angular position of the bending lines 48, 50 influenced according to FIG. 4.
  • FIGS. 5 and 6 An alternative embodiment of a cutting knife according to the invention is shown in FIGS. 5 and 6 and overall with number 16a.
  • the cutting knife 16a is again angled in a U-shaped cross section, 6, and has a fastening part 32a with a fastening opening 18a, an intermediate web 36a and a cutting part 34a.
  • the cutting part 34a is also curved in a crescent shape, wherein the sickle curvature with respect to the attachment opening 18a is concavely curved.
  • the cutting part 34a At its mounting opening 18a facing On the side, the cutting part 34a has a cutting edge 44a with a serrated edge.
  • the Fastening opening 18a facing away from the cutting part 34a On the of the Fastening opening 18a facing away from the cutting part 34a has a further cutting edge 46a, which however has a relative large tip angle ⁇ of at least about 30 °, preferably from about 40 ° to 50 °, as from the enlarged section can be seen by the cutting part 34a according to FIG. 7.
  • the serrated edge on the cutting edge 44a may preferably produced automatically using an NC-controlled grinding wheel become. Likewise, the cutting edges 44a with a Be ground.
  • the cutting knife 16a Due to the serrated or saw cut, the cutting knife 16a a significantly improved cutting ability for cutting especially with a very tough material. Despite the serrated edge is a multiple manual regrinding during of use using the oscillating drive and Use of a grindstone possible.
  • the fastening part 32a in turn has an offset 42a on.
  • both side edges 38a and 40a continuous curvatures in the area of Fastening opening 18a run around them or into one another pass over.
  • the side edge facing the cutting part 34a 38a of the fastening part 32a is in relation to the fastening opening 18a curved concavely.
  • the side edge 40a on the Side of the fastening part 32a facing away from the cutting part 34a is convexly curved with respect to the fastening opening 18a, shows the same direction of curvature as that on the other Side edge 38a extending side of the fastening opening on.
  • the part of the cutting part 34a belonging to the development 47a is shown by dash-dotted lines. Again, the cutting part 34a has on its cutting edge 44a facing the fastening opening 18a a considerably larger radius of curvature r 2 than the radius of curvature r 1 in the region of the offset 42a of the fastening part 32a.
  • FIGS. 7 to 10 The following are various possible cross-sectional shapes of the Cutting part explained with reference to FIGS. 7 to 10, in which a Cross section through the cutting part in a greatly enlarged representation is shown.
  • the cutting part 34c is ground spherically on both sides and points at its two cutting edges 44c and 46c each with a serrated edge.
  • the cutting part 34d is on one side with a flat outer surface and crowned on the other side ground. This is only on the fastening part facing side a serrated edge on the cutting edge 44d formed while the other cutting edge 46d is being ground is.
  • the cutting part 34b has one middle section 52b, which by parallel to each other Outer surfaces 54b, 56b is limited. To the two cutting edges 44b and 46b, this middle section 52b runs on both sides pointed and is on both cutting edges 44b and 46b with a Provide serrated edge.
  • the serrated edge is attached from both sides, so that the serrated edge is symmetrical.
  • the cutting part 34a is substantially at its attachment opening 18a facing cutting edge 44a and the other cutting edge 46a merely returns the cutting knife in an already severed part of the adhesive bead is supposed to enable an increased level in this area as well mechanical stability and thus reduced susceptibility to breakage of the cutting knife guaranteed.
  • the cutting edge 44a is different from the embodiment 8 only with a serrated edge on one side 44a.
  • FIG. 7 is an alternative embodiment of the cutting part 34a at its end facing away from the fastening opening 18a with a dashed line 46 'indicated that the Cutting part 34a on this side only with a blunt Edge is provided.
  • this version offers advantages because of a further improved stability of the cutting part.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
EP00111233A 1999-07-10 2000-05-25 Lame de coupe pour couper des bourrelets adhésifs aux vitres Expired - Lifetime EP1068937B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19932248 1999-07-10
DE19932248A DE19932248A1 (de) 1999-07-10 1999-07-10 Schneidmesser zum Durchtrennen von Klebewulsten an Fensterscheiben

Publications (2)

Publication Number Publication Date
EP1068937A1 true EP1068937A1 (fr) 2001-01-17
EP1068937B1 EP1068937B1 (fr) 2002-08-21

Family

ID=7914304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111233A Expired - Lifetime EP1068937B1 (fr) 1999-07-10 2000-05-25 Lame de coupe pour couper des bourrelets adhésifs aux vitres

Country Status (3)

Country Link
US (1) US6401342B1 (fr)
EP (1) EP1068937B1 (fr)
DE (2) DE19932248A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001062450A1 (fr) * 2000-02-25 2001-08-30 C. & E. Fein Gmbh & Co.Kg. Couteau
EP1307324A4 (fr) * 2000-08-08 2004-03-17 Lock T S Outil ameliore servant a retirer du verre

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10058894A1 (de) * 2000-11-23 2002-06-06 C & E Fein Gmbh & Co Kg Werkzeug mit einem Halter zur Befestigung an einer Antriebswelle
RS51409B (sr) * 2002-07-25 2011-02-28 Belron Hungary Kft- Zug Branch Rezni alat i postupak za izrezivanje vetrobranskih stakala motornih vozila
US20070006468A1 (en) * 2005-07-06 2007-01-11 Christopher Davies Cutting device
US20060042099A1 (en) * 2004-08-30 2006-03-02 Diemert Eric D " Kwik kut ", high performance " blade "
US7386941B2 (en) * 2005-10-17 2008-06-17 Terry Lee Wagenknecht Slit pick and hold triple function graphic arts safety blade
DE202006014895U1 (de) * 2006-09-15 2006-11-30 C. & E. Fein Gmbh Vorrichtung zur Führung eines Sägeblattes
USD619152S1 (en) 2009-12-18 2010-07-06 Techtronic Power Tools Technology Limited Adapter
USD623034S1 (en) 2009-12-18 2010-09-07 Techtronic Power Tools Technology Limited Tool arbor
USD653523S1 (en) 2010-09-29 2012-02-07 Milwaukee Electric Tool Corporation Adapter for a tool
USD651062S1 (en) 2010-09-29 2011-12-27 Milwaukee Electric Tool Corporation Tool interface for an accessory
USD646542S1 (en) 2010-09-29 2011-10-11 Milwaukee Electric Tool Corporation Accessory interface for a tool
AU337739S (en) * 2011-06-27 2011-07-20 Arbortech Industries Ltd Allsaw
US9027452B2 (en) * 2011-12-27 2015-05-12 Robert Bosch Gmbh Jab saw accessory tool for an oscillating tool
US9555554B2 (en) 2013-05-06 2017-01-31 Milwaukee Electric Tool Corporation Oscillating multi-tool system
CN104249189A (zh) * 2013-06-28 2014-12-31 苏州宝时得电动工具有限公司 刀片及摆动机
DE102019212706A1 (de) * 2019-08-23 2021-02-25 Robert Bosch Gmbh Sägewerkzeug
US11771256B1 (en) * 2022-12-13 2023-10-03 Nick Suteerawanit Serrated jackfruit knife

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141035A1 (fr) * 1983-08-31 1985-05-15 C. & E. FEIN GmbH & Co. Outil pour tailler
DE8617670U1 (de) 1986-07-02 1986-12-18 Wilhelm Mütter Werkzeugfabrik u. Gesenkschmiede, 5650 Solingen Oszillierendes Trennmesser mit Verzahnung
EP0369390A2 (fr) * 1988-11-18 1990-05-23 C. & E. FEIN GMBH & CO. Couteau à partie coupante droite
EP0433539A1 (fr) * 1989-12-21 1991-06-26 Mütter, Wilhelm Couteau à actionnement oscillatoire

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135573A1 (de) 1990-11-28 1992-06-04 Fein C & E Verfahren und vorrichtung zum einbringen von oberflaechenkanaelen in plattenmaterial aus weichem werkstoff und verwendung einer vorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141035A1 (fr) * 1983-08-31 1985-05-15 C. & E. FEIN GmbH & Co. Outil pour tailler
EP0141035B1 (fr) 1983-08-31 1987-03-11 C. & E. FEIN GmbH & Co. Outil pour tailler
DE8617670U1 (de) 1986-07-02 1986-12-18 Wilhelm Mütter Werkzeugfabrik u. Gesenkschmiede, 5650 Solingen Oszillierendes Trennmesser mit Verzahnung
EP0369390A2 (fr) * 1988-11-18 1990-05-23 C. & E. FEIN GMBH & CO. Couteau à partie coupante droite
EP0433539A1 (fr) * 1989-12-21 1991-06-26 Mütter, Wilhelm Couteau à actionnement oscillatoire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001062450A1 (fr) * 2000-02-25 2001-08-30 C. & E. Fein Gmbh & Co.Kg. Couteau
US6802127B2 (en) * 2000-02-25 2004-10-12 C & E Fein Gmbh & Co. Kg Cutting knife
EP1307324A4 (fr) * 2000-08-08 2004-03-17 Lock T S Outil ameliore servant a retirer du verre

Also Published As

Publication number Publication date
EP1068937B1 (fr) 2002-08-21
DE50000388D1 (de) 2002-09-26
DE19932248A1 (de) 2001-01-11
US6401342B1 (en) 2002-06-11

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