DE10011149A1 - Sheet metal tearing spike for hydraulic rescue cutting machine - Google Patents

Sheet metal tearing spike for hydraulic rescue cutting machine

Info

Publication number
DE10011149A1
DE10011149A1 DE10011149A DE10011149A DE10011149A1 DE 10011149 A1 DE10011149 A1 DE 10011149A1 DE 10011149 A DE10011149 A DE 10011149A DE 10011149 A DE10011149 A DE 10011149A DE 10011149 A1 DE10011149 A1 DE 10011149A1
Authority
DE
Germany
Prior art keywords
cutting
sheet metal
spike
tip
spreader
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.)
Withdrawn
Application number
DE10011149A
Other languages
German (de)
Inventor
Hans-Georg Heide
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.)
HEIDE HANS GEORG
Original Assignee
HEIDE HANS GEORG
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 HEIDE HANS GEORG filed Critical HEIDE HANS GEORG
Priority to DE10011149A priority Critical patent/DE10011149A1/en
Publication of DE10011149A1 publication Critical patent/DE10011149A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
    • A62B3/005—Rescue tools with forcing action
    • 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
    • B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
    • B23D35/001—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools cutting members

Abstract

The metal tearing spike is friction fitting and has a removable workpiece which fits onto the front ends of the rescue spike arm. The spike has an outwardly bending (T) cutting edge (K) with a wedge shaped cross section. A cutting edge (S) is also found on the inner edge (I) of the spike which allows cutting with scissor movements of the arm.

Description

Bei der technischen Rettung eingeklemmter Personen aus verunfallten Fahrzeugen ist es üblich, versperrende Bauteile mit der Hilfe von Hydraulischen Rettungsgeräten zu beseitigen, indem sie unter Deformation aufgesprengt oder aufgedrückt werden. Hierfür werden unter anderem sog. "Spreizer", eingesetzt, welche mit Hilfe zweier hydraulisch auseinander­ bewegten Metallarme, die an Ihren Enden austauschbare Spitzen haben, die zur Verformung nötige Kraft übertragen. Ist es aufgrund der Deformierung des Fahrzeugs oder baulicher Gegebenheiten nicht möglich, hydraulische Rettungsgeräte einzusetzen, werden in der Regel als Alternative spanabhebende Trennverfahren verwendet, welche den Nachteil haben, daß Späne oder heiße Metallpartikel (Funken) zu einer weiteren Gefährdung von Einsatzkräften und zu rettenden Personen führen.It is in the technical rescue of trapped people from accident vehicles usual to remove blocking components with the help of hydraulic rescue equipment, by being blown open or pressed open under deformation. For this, be under other so-called "spreader" used, which with the help of two hydraulically apart moving metal arms that have interchangeable tips at their ends that cause deformation transfer necessary power. Is it due to the deformation of the vehicle or more structural It is usually not possible to use hydraulic rescue equipment used as an alternative cutting process, which have the disadvantage that Chips or hot metal particles (sparks) pose a further danger to emergency services and lead to saving people.

Zwar existieren Hilfsmittel zum span- und funkenlosen durchtrennen von Metall- oder Kun­ ststoffflächen, doch ist diesen, aufgrund der Tatsache daß hierbei in der Regel mit mensch­ licher Muskelkraft gearbeitet werden muß, nur ein eingeschränktes Einsatzfeld vorbehalten. Auch bestehen Schutzrechte für Spreizerspitzen, welche durch Ablösen eines Schälspanes eine Materialdurchtrennung erreichen, doch wird hierbei aufgrund der großen Kraftangriffsfläche besonders bei gefalteten oder gestauchten Blechen ein hoher Wiederstand durch das zu durch­ trennende Material erzeugt, weshalb sich diese Spitzen nur für geringe Materialstärken eignen.There are tools for cutting metal and plastic without cutting and sparking surfaces, but this is due to the fact that this is usually with humans licher muscle strength must be worked, reserved only for a limited field of application. There are also protective rights for spreader tips, which result from the removal of a peeling chip Achieve material cutting, but this is due to the large force application area especially with folded or compressed sheets, a high resistance due to the through separating material, which is why these tips are only for low material thicknesses own.

Im Sinne der Erfindung wird die Lösung der vorab geschilderten Problematik dadurch erreicht, daß eine Spreizerspitze hergestellt wird, welche auf ihrer Außenflanke mit einer nach außen sichelartig gebogenen, auf der Innenseite keilförmigen Schneide versehen ist. Dadurch ist es möglich, durch den extrem kleinen Angriffspunkt der Keilspitze große Schnittleistungen in Bezug auf die Materialdicke zu erzielen, und - einem Dosenöffner gleich - das Material ohne entstehende Funken und Späne zu durchtrennen. In the sense of the invention, this solves the problem described above achieved that a spreader tip is made, which on its outer flank with a is crescent-shaped on the outside, wedge-shaped on the inside. Thereby it is possible to achieve high cutting performance due to the extremely small point of application of the chisel tip in terms of material thickness and - like a can opener - the material without cutting sparks and chips.  

Durch die sichelartige Formgebung wird weiterhin erreicht, daß trotz der nach außen auf­ fahrenden Spreizerarme keine Veränderung des Werkzeugwinkels zur Werkstoffoberfläche entsteht, was eine Minderung der Schneidleistung verhindert und die Nutzung der gesamten Spreizweite für den Schnitt ermöglicht.Due to the crescent-like shape it is still achieved that despite the on the outside moving spreader arms no change in the tool angle to the material surface arises, which prevents a reduction in cutting performance and the use of the whole Allows spread for the cut.

Zur Abtragung der Gegenkraft auf einen Festpunkt kann am zweiten Spreizerarm eine herkömmliche oder auch speziel dazu mit einer größeren Oberfläche und besonderen Formgebung versehene Spreizerspitze benutzt werden. To transfer the counterforce to a fixed point, one can be attached to the second spreader arm conventional or special with a larger surface and special Shaped spreader tip can be used.  

Zeichnungendrawings

Im folgenden wird die in der Erfindung begründete Blech-Reißspitze in ihrer vorzugsweisen Ausführung in der Draufsicht und im Schnitt dargestellt. Auf eine Darstellung der Spreizerarme oder des ges. Spreizers wurde verzichtet, da diese Bauteile, ebenso wie die Art der Befestigung an den Spreizerarmen, die Erfindung weder beschreiben noch kennzeichnen.In the following, the sheet metal drawing tip based on the invention will be preferred Version shown in top view and in section. On a representation of the Spreader arms or the total. Spreader was omitted because these components, like the type the attachment to the spreader arms, neither describe nor characterize the invention.

Es bedeuten:It means:

Zeichnung ADrawing A DraufsichtTop view Zeichnung BDrawing B Schnittdarstellung entlang der Linie F-GSectional view along the line F-G

N: Aufnahmebohrung für Fixierungsbolzen
S: Schneide
K: Schneidenschärfe
T: Außenflanke der Spreizerspitze
I: Innenflanke der SpreizerspitzeN: Location hole for fixing bolts
S: cutting edge
K: cutting edge sharpness
T: outer flank of the spreader tip
I: inner flank of the spreader tip

Claims (3)

1. Blechreißspitze für die Verwendung auf Hydraulischen Rettungsspreizern, dadurch gekennzeichnet, daß die Spitze eine spanlose, nicht schälende Durchtrennung von Blechen ermöglicht und als austauschbares Teil an den Spreizerarmen befestigt werden kann.1. Sheet metal tear tip for use on hydraulic rescue spreaders, characterized in that the tip enables a non-cutting, non-peeling cutting of sheets and can be attached to the spreader arms as a replaceable part. 2. Blechreißspitze nach Anspruch 1, dadurch gekennzeichnet, daß die Spitze an ihrer Außenflanke eine sichelförmig nach außen gebogene, keilförmige Schneide aufweist, welche durch ihre Formgebung beim Öffnen der Spreizerarme eine für die Trennarbeit günstige Winkelanordnung und Kraftübertragung ermöglicht.2. sheet metal drawing tip according to claim 1, characterized in that the tip on it Outside flank has a crescent-shaped, wedge-shaped cutting edge, which due to its shape when opening the spreader arms, it is a good choice for cutting work Angle arrangement and power transmission enables. 3. Blechreißspitze nach Anspruch 1 und 2, dadurch gekennzeichnet, daß auch bei der Schließbewegung des Spreizers durch eine besondere Formgebung ein spanloses Durch­ trennen der Materialien ermöglicht wird.3. sheet metal drawing tip according to claim 1 and 2, characterized in that also in the Closing movement of the spreader through a special shape a non-cutting through separating the materials is made possible.
DE10011149A 1999-03-11 2000-03-07 Sheet metal tearing spike for hydraulic rescue cutting machine Withdrawn DE10011149A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10011149A DE10011149A1 (en) 1999-03-11 2000-03-07 Sheet metal tearing spike for hydraulic rescue cutting machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29904456U DE29904456U1 (en) 1999-03-11 1999-03-11 Sheet metal tip for hydraulic rescue spreaders
DE10011149A DE10011149A1 (en) 1999-03-11 2000-03-07 Sheet metal tearing spike for hydraulic rescue cutting machine

Publications (1)

Publication Number Publication Date
DE10011149A1 true DE10011149A1 (en) 2000-11-30

Family

ID=8070696

Family Applications (2)

Application Number Title Priority Date Filing Date
DE29904456U Expired - Lifetime DE29904456U1 (en) 1999-03-11 1999-03-11 Sheet metal tip for hydraulic rescue spreaders
DE10011149A Withdrawn DE10011149A1 (en) 1999-03-11 2000-03-07 Sheet metal tearing spike for hydraulic rescue cutting machine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE29904456U Expired - Lifetime DE29904456U1 (en) 1999-03-11 1999-03-11 Sheet metal tip for hydraulic rescue spreaders

Country Status (1)

Country Link
DE (2) DE29904456U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009059940A1 (en) 2009-12-22 2011-06-30 Herwig-Bohrtechnik Schmalkalden GmbH, 98574 Shear blades for cutting devices, has replaceable cutting inserts, which are accommodated, held and clamped in shear blades by mechanical unit by form closure and force closure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009059940A1 (en) 2009-12-22 2011-06-30 Herwig-Bohrtechnik Schmalkalden GmbH, 98574 Shear blades for cutting devices, has replaceable cutting inserts, which are accommodated, held and clamped in shear blades by mechanical unit by form closure and force closure
DE102009059940B4 (en) * 2009-12-22 2016-09-15 Herwig Bohrtechnik Schmalkalden Gmbh Shearing knives for cutters

Also Published As

Publication number Publication date
DE29904456U1 (en) 1999-07-22

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Legal Events

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