WO2013120468A1 - Dispositif permettant de découper des tôles - Google Patents

Dispositif permettant de découper des tôles Download PDF

Info

Publication number
WO2013120468A1
WO2013120468A1 PCT/DE2012/001074 DE2012001074W WO2013120468A1 WO 2013120468 A1 WO2013120468 A1 WO 2013120468A1 DE 2012001074 W DE2012001074 W DE 2012001074W WO 2013120468 A1 WO2013120468 A1 WO 2013120468A1
Authority
WO
WIPO (PCT)
Prior art keywords
jaws
jaw
relative movement
lever
linear
Prior art date
Application number
PCT/DE2012/001074
Other languages
German (de)
English (en)
Inventor
Gerhard Schneckenburger
Original Assignee
Sinno Gmbh
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 Sinno Gmbh filed Critical Sinno Gmbh
Publication of WO2013120468A1 publication Critical patent/WO2013120468A1/fr

Links

Classifications

    • 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
    • B23D29/00—Hand-held metal-shearing or metal-cutting devices
    • B23D29/02—Hand-operated metal-shearing devices
    • B23D29/026—Hand-operated metal-shearing devices for cutting sheets
    • 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
    • B23D17/00—Shearing machines or shearing devices cutting by blades pivoted on a single axis
    • B23D17/02—Shearing machines or shearing devices cutting by blades pivoted on a single axis characterised by drives or gearings therefor
    • B23D17/08—Shearing machines or shearing devices cutting by blades pivoted on a single axis characterised by drives or gearings therefor actuated by hand or foot operated lever mechanism

Definitions

  • the invention relates to a device for cutting sheets with two relatively movably arranged jaws and two relatively movably arranged actuating levers, each associated with an actuating lever of a jaw and wherein a relative movement of the actuating lever provides a relative movement of the jaws to each other.
  • end plates made of sheet metal are used as end segments of pipe insulation.
  • the end disks are usually made on site at the construction site of two approximately semicircular sheet metal sections, wherein in a central region of the semicircular sheet metal section for carrying out the pipeline to be insulated by means of a metal shears also an approximately semi-circular recess is incorporated.
  • the guiding of the shearing machine is in this case associated with a considerable expenditure of force and does not often lead to unclean cuts and unsightly veneers in the area of the insulation finish. In addition, due to the unclean cut a considerable risk of cuts.
  • CONFIRMATION COPY Object of the present invention is therefore to provide a device for simplified cutting of such end plates, which is particularly suitable for mobile use on construction sites.
  • the invention in conjunction with the preamble of claim 1 protection is characterized in that the relative movement of the jaws is formed as a linear relative movement.
  • the particular advantage of the invention is that a particularly clean cut can be generated by the linear relative movement of the jaws to each other by means of cutting tools attached to the jaws. This reduces the risk of injury. In addition, the visual appearance improves, with the result that the work of the craftsman is valued.
  • the basic idea of the invention here is to design a device for cutting instead of a conventional metal shears in such a way that the cutting movement is realized from a linear movement of the jaws relative to one another.
  • the relative movement of the jaws can be precisely guided and therefore the cut can be made clean.
  • the cut is in this case completely manufactured with a single operation of the device, d. H. a Nach- or relocating the cutting edge as in the snips omitted.
  • the device is designed here as a manually operable device and preferably as a hand-held device.
  • the dimensioning of the device essentially corresponds to the dimensioning of a metal scissors used today for this purpose.
  • At least one operating lever of the device is designed as a pivot lever, which is arranged pivotably in relation to a pivot point.
  • this is the usual and known from metal shears basic operation or handling for the device. This ensures a high level of acceptance especially among the craftsmen and do-it-yourselfers. At the same time there is the possibility to use the leverage and so keep the force required to cut the sheet within reasonable limits.
  • a converter is provided for converting the pivoting movement of the pivot lever into a linear adjusting movement of the jaws between the at least one pivot lever and a jaw associated with the pivot lever.
  • a kinematic adaptation between the actuating action of the craftsman (pivotal movement of the actuating lever) and the cutting movement (linear relative movement of the jaws) can be realized.
  • the force and path of the linear relative movement over the converter can be provided as needed from the swivel angle and the actuation torque.
  • the converter has at least one toothed rack and at least one toothed wheel cooperating with the toothed rack.
  • Advantageously, provides by the provision of rack and gear a simple and secure way to implement the pivoting movement in a linear motion.
  • the implementation takes place here form fit, so that high forces can be transmitted safely and reliably.
  • the jaws on receiving means for receiving replacement tools wherein the change tools on the receiving means non-positively or positively held on the jaws.
  • the possibility is created by the recording means to use different tools on the device, which are designed in the manner of change tools.
  • the device is therefore particularly flexible to use and can be easily and quickly converted in particular on site at the site.
  • Through the combination drill hole pin manages to form the change tools on the type of quick change tools and exactly to the jaws position.
  • the replacement tool is held on the jaws, for example via a magnetic attachment or a locking mechanism.
  • the change tools are held securely on the jaws, are especially secured against slipping or slipping and quickly replaced.
  • a cutting edge with at least one cutting edge is formed on at least one tool held on the jaws and / or on the replacement tool for cutting metal sheets.
  • the cutting edge is shaped such that the sheet to be cut is cut along the cutting edge at least in sections at least two places simultaneously.
  • a guide means for the linearly displaceable at least one jaw at least one guide pin and at least one guide pin surrounding the guide pin at least partially guide sleeve, wherein the guide sleeve is slidably held relative to the guide pin.
  • this realizes a simple, precise and at the same time robust linear guide for the at least one linearly displaceable jaw.
  • the linear guide is robust and therefore ideally suited for rough working conditions on construction sites.
  • a pivot angle of the pivot lever is less than 30 °, preferably less than 20 ° and / or the linear relative movement of the jaws to each other less than 30 mm, preferably less than 20 mm.
  • the pivoting angle of 30 ° or less easy handling in particular a one-handed operation of the tool possible. Due to the linear relative movement of 30 mm or less comparatively high forces can be applied. Surprisingly, it has been found in tests that in the specified range of 30 mm linear travel or less the required forces for cutting conventional end face plates of up to about 150 kg can be reliably provided.
  • Figure 1 is a functional model of a device according to the invention in one
  • FIG. 2 shows the device according to FIG. 1 with a removed interchangeable tool
  • FIG. 3 shows a perspective bottom view of the device according to FIG. 1,
  • Figure 4a shows a front plate before processing with the invention
  • a device for cutting metal sheets according to FIG. 1 has as main constituents a first actuating lever 1, a second actuating lever 2 pivotably arranged in relation to the first actuating lever 1, a first jaw 3 and a second jaw 4.
  • the first jaw 3 is rigidly connected to the first operating lever 1 via a housing section 5.
  • the second operating lever 2 is pivotally held with respect to a provided on the housing portion 5 pivot point 6 and formed as a pivot lever 2.
  • the pivot lever 2 can be moved in the counterclockwise direction about the pivot point 6 in the direction of the first actuating lever 1.
  • a pivoting movement of the pivot lever 2 is in this case transmitted via a converter 7 to the second jaw 4.
  • the second jaw 4 is arranged linearly displaceable in a longitudinal direction 8 in the direction of the first jaw 3.
  • the linear movement of the second jaw 4 is coupled to the pivotal movement of the pivoting lever 2 via the transducer 7.
  • the converter 7 has to implement the pivotal movement of the pivot lever 2 in the linear movement of the second jaw 4 two conversion stages.
  • the pivoting movement of the second actuating lever 2 is transmitted from a first gearwheel 9 which is rigidly connected, preferably positively connected, to a first gearwheel 9 cooperating with the first gearwheel 9 and also rotatably held in the housing section 5.
  • the first gear 9 is in this case rotatably mounted in the pivot point 6 of the pivot lever 2.
  • the second gear 10 cooperates with a rack 11.
  • the rack 11 is rigidly connected to the second jaw 4, so that the second jaw 4 is moved in the longitudinal direction 8 as a result of the transmitted from the first gear 9 to the second gear 10 and the second gear 10 to the rack 11 actuating movement of the pivot lever.
  • the second jaw 4 is so far relatively movable to the first jaw 3 and the second operating lever 2 arranged relatively movable to the first operating lever 1.
  • An operating angle 17 of the swing lever 2 is preferably 30 ° or less, and the resulting relative movement of the jaws 3,4 is 30 mm or less.
  • the second jaw 4 is about two spaced and mutually parallel guide pins 12, 13 and two the guide pins 12, 13 associated Guide sleeves 14, 15 out.
  • the guide sleeves 14, 15 are arranged in the housing portion 5 and surround the guide pins 12, 13 at least partially on the shell side.
  • the tool 20 comprises a first tool part 21 assigned to the first jaw 3 and a second tool part 22 assigned to the second jaw 4. As shown in particular in FIG. 2, the tool 20 is designed in the manner of an interchangeable tool.
  • the first tool part 21 and the second tool part 22 can be detachably connected to the jaws 3, 4.
  • the tool 20 By forming the tool 20 as an interchangeable tool, it can be exchanged quickly and easily, especially on site at the construction site. This makes it possible to use the device flexible for different cutting tasks or swap blunt tools against sharp.
  • a recess 16 is provided in a lower region of the second jaw 4 facing away from the first jaw 3.
  • the recess 16 serves as ejection pocket 16 for separated from the front side sheet metal sheet sections. Due to the provision of the ejection pocket 16, cuts can be made in rapid succession by means of the device. Removing the sheet metal section from the device eliminates and simplifies the work of the craftsman.
  • the device can not only be used as a sheet metal cutting pliers.
  • any other cuttable material for example flat material such as a plastic film, acrylic or the like, can be cut to size using the device.
  • the device can be used in the manner of a press or punch to punch out sheet metal sections from a sheet, for example, copper seals (sealing rings) or to connect two workpieces using rivets or by cramping or to train a local bruise.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

L'invention concerne un dispositif permettant de découper des tôles, comprenant deux mâchoires montées de manière mobile l'une par rapport à l'autre et deux leviers d'actionnement montés de manière mobile l'un par rapport à l'autre. Chaque levier d'actionnement est associé à une mâchoire, et un mouvement relatif des leviers d'actionnement permet d'obtenir un mouvement relatif des mâchoires l'une par rapport à l'autre. Le mouvement relatif des mâchoires (3, 4) prend la forme d'un mouvement relatif linéaire.
PCT/DE2012/001074 2012-02-18 2012-11-08 Dispositif permettant de découper des tôles WO2013120468A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012001605.9 2012-02-18
DE201220001605 DE202012001605U1 (de) 2012-02-18 2012-02-18 Vorrichtung zum Schneiden von Blechen

Publications (1)

Publication Number Publication Date
WO2013120468A1 true WO2013120468A1 (fr) 2013-08-22

Family

ID=47522206

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2012/001074 WO2013120468A1 (fr) 2012-02-18 2012-11-08 Dispositif permettant de découper des tôles

Country Status (2)

Country Link
DE (1) DE202012001605U1 (fr)
WO (1) WO2013120468A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10576557B2 (en) * 2017-11-17 2020-03-03 Greenlee Tools, Inc. Workpiece shearing apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR618155A (fr) * 1926-06-26 1927-03-04 Cisaille pour le découpage des tôles
FR641009A (fr) * 1927-09-15 1928-07-26 Procédé de cisaillage et appareil en permettant la réalisation
US2751681A (en) * 1955-05-27 1956-06-26 Hillson Frank Miter guide
DE947218C (de) * 1951-04-21 1956-08-09 Peddinghaus Paul Ferd Fa Arbeitsmaschine, insbesondere Schere, Stanze od. dgl. fuer Handbetaetigung
DE29721435U1 (de) * 1997-12-04 1999-04-01 Distler Norbert Vorrichtung zum Schneiden von tafelförmigen Materialien

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR618155A (fr) * 1926-06-26 1927-03-04 Cisaille pour le découpage des tôles
FR641009A (fr) * 1927-09-15 1928-07-26 Procédé de cisaillage et appareil en permettant la réalisation
DE947218C (de) * 1951-04-21 1956-08-09 Peddinghaus Paul Ferd Fa Arbeitsmaschine, insbesondere Schere, Stanze od. dgl. fuer Handbetaetigung
US2751681A (en) * 1955-05-27 1956-06-26 Hillson Frank Miter guide
DE29721435U1 (de) * 1997-12-04 1999-04-01 Distler Norbert Vorrichtung zum Schneiden von tafelförmigen Materialien

Also Published As

Publication number Publication date
DE202012001605U1 (de) 2013-05-21

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