EP1726409A1 - Werkzeugarm aus Verbundmaterial, Verfahren zu seiner Herstellung sowie Werkzeugeinheit - Google Patents

Werkzeugarm aus Verbundmaterial, Verfahren zu seiner Herstellung sowie Werkzeugeinheit Download PDF

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Publication number
EP1726409A1
EP1726409A1 EP06005355A EP06005355A EP1726409A1 EP 1726409 A1 EP1726409 A1 EP 1726409A1 EP 06005355 A EP06005355 A EP 06005355A EP 06005355 A EP06005355 A EP 06005355A EP 1726409 A1 EP1726409 A1 EP 1726409A1
Authority
EP
European Patent Office
Prior art keywords
tool arm
tool
arm according
intermediate piece
insert
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Withdrawn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
EP06005355A
Other languages
German (de)
English (en)
French (fr)
Inventor
Robert Krome
Markus Dr. Ing. Steffens
Wolfgang Bertleff
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.)
Lukas Hydraulik GmbH
Original Assignee
Lukas Hydraulik 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 Lukas Hydraulik GmbH filed Critical Lukas Hydraulik GmbH
Publication of EP1726409A1 publication Critical patent/EP1726409A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/005—Hydraulic driving means

Definitions

  • the present invention relates to a tool arm according to the preamble of claim 1 and to a tool unit according to the preamble of claim 24.
  • Such tool arms are for example part of so-called.
  • Spreaders or tailors which are used either in the field of industrial tools or the rescue technology. Since very high loads occur during operation of the tool in the area of the tool arms, such tool arms regularly consist of metal, preferably of aluminum. This results in the disadvantage that the tools concerned have a comparatively high weight due to the selected material. This causes, where it depends on the particular mobility of the tools, as is the case with the rescue technology, disadvantages in handling.
  • the object of the present invention is now to provide a novel tool arm, on the one hand ensures a high degree of robustness against mechanical damage during operation, on the other hand, allows an effective weight saving. Furthermore, a should Tool unit to be created, which ensures a safe operation with reduced weight.
  • the present object is achieved in the generic tool arm in that d in at least one force application area on the tool. H. at a region where forces are introduced into the tool arm or a support of the tool arm, a one- or multi-piece spacer is provided.
  • the intermediate piece can expediently be provided on the tool insert and / or in the region of the articulation points of the tool arm.
  • the intermediate piece ensures an improved application of force to the existing composite tool arm and thus a reduced susceptibility to damage of the fiber fabric and thus a reduced susceptibility to breakage of the tool arm in the tool insert.
  • the tool arm is expediently made of fiber composite material, in particular of carbon fiber composite material.
  • the tool arm can also be made of magnesium composite material, in particular carbon-magnesium composite material. In both cases, the choice of material ensures excellent strength and reduced weight for the application.
  • the tool insert on the front of the tool arm is expediently made of metal, in particular steel or ceramic. Conventional tool inserts can therefore continue to be used.
  • the material selection so that the notch strength of the material of the intermediate piece is higher than the notch strength of the material of the tool arm.
  • the notch strength of the tool insert is higher than the notch strength of the material of the intermediate piece.
  • the shear strength (concerning the intermediate piece of composite material, in particular the so-called interlaminar shear strength) can be used as delimitation criterion.
  • the intermediate piece is in a particular embodiment of the present invention expediently made of metal, in particular aluminum.
  • the intermediate piece and the tool arm are arranged substantially sandwiched.
  • the intermediate piece in this case has one or more substantially flat contact areas.
  • the force from the tool insert can be optimally introduced to the tool arm via this contact area or these contact areas, thereby precluding a risk of breakage of the fibers of the composite material.
  • the intermediate piece is expediently aligned substantially running approximately to the working surface of the tool insert, which also optimizes the introduction of force.
  • the intermediate piece is designed in such a way that it has a flat area, by means of which a two-sided surface connection, in particular bonding to the tool arm, is made possible. This creates an intimate connection between the intermediate piece and the tool arm.
  • the intermediate piece - viewed transversely to its longitudinal axis - expediently have a double-T-shape and integrally connected to the tool arm, in particular be enclosed by the tool arm on both major surfaces of the double-T-shaped intermediate piece of the tool arm.
  • Tool arm and adapter are additionally supported by means of a support pin against each other, which also extends through the tool insert, whereby the outer edges of the tool arm are relieved.
  • a rod in particular a socket pin, a clamping bush or a dowel pin is provided.
  • the rod, socket pin, clamping bush or clamping pin are expediently also made of metal, preferably steel.
  • a collar bush is provided as an intermediate piece. This also protects the tool arm in the region of the articulation points against mechanical damage.
  • the rings are suitably made of the same material as the tool arm. The measure ensures an improved absorption of the force in the area of the deflection points.
  • the respective spacer also in one piece d. H. be made in one piece with the tool insert or the tool arm.
  • claims 21 and 22 have the advantage that a degree of wear or wear can be displayed for the user, in which an exchange of the tool arm is required.
  • claim 23 has the advantage that exposed areas of the tool arm are protected against mechanical interference, for example, when the tool tip should slip off the object to be processed.
  • the present invention also relates to a tool unit.
  • This tool unit comprises a tool arm as claimed in claims 1-23.
  • the inventive method according to claim 26 has the advantage that the tool arm receives optimum strength and reworking does not have to be made. Insert parts can previously be manufactured to exact dimensions and precisely positioned. Post-processing is not necessary.
  • the tool unit 15 shows by way of example a tool unit 15 in the form of a spreader for the rescue operation, in particular for the recovery of occupants of injured vehicles.
  • the tool unit 15 comprises a frame 14 with handles 18 arranged thereon, two opposing tool arms 1 and two tool inserts 2 located at the tip of the respective tool arm 1 with tool scenes located inside and outside.
  • the two tool arms are by an actuating mechanism, the hydraulic cylinder 16th includes, powered.
  • the hydraulic cylinder 16 is driven via hydraulic lines 17 by a mechanical pump or a hand pump (both are not shown in the figures).
  • Fig. 2 shows the structure of the tool arm 1 including tool insert 2 according to the present invention prior to the casting of the tool arm and intermediate piece.
  • the tool arm 1 consists of fiber composite material, in particular of a plurality of differently oriented long fiber layers, e.g. Carbon fiber fiber layers, which are combined into a three-dimensional fiber structure before casting with resin.
  • the orientation of the fibers is in this case adapted to the force flow occurring during operation on the tool arm.
  • the fiber structure is cast in the resin injection process with a suitable plastic or plastic resin. This gives the tool arm 1 for a light weight and on the other hand a very high strength.
  • a shoulder 13 In the front region of the tool arm 1 is a shoulder 13 at the top and bottom for receiving the tool insert. 2
  • a planking 19 of metal flakes, in particular steel flakes, for mechanical protection of the side regions is provided on both sides on the tool arm 1.
  • an intermediate piece 3 made of aluminum with a double-T-like shape is provided, which is poured over the area 7 on both sides together with the fiber skeleton.
  • the flat contact areas 6 are located both at the one end and at the other end face of the spreading arm 1, as can be seen in the finished molded state from FIG. 3 (B).
  • the front side, the intermediate piece 3 comprehensive projection of the tool arm 1 is dimensioned such that the tool insert 2, which is hollow, can be pushed onto the projection and the tool arm 1 completed.
  • Tool arm 1, spacer 3 and tool insert 2 are fixed together via an elastic clamping bushing 9, which consists of steel.
  • a potted support bolt 8 is provided which also consists of steel or aluminum, and a support of spacer 3 and tool insert 2 ensures each other and thus a relief in the region of the edges of the tool arm 1 and spacer 3 is achieved.
  • a collar bushing 10 which is likewise cast with the fiber skeleton, is provided which, for example, consists of aluminum. Inside the collar bush is a (not shown) mounting bolts for attaching the respective tool arm 1 on the frame 14 of the tool unit 15. In order to achieve optimal distribution of forces on a larger area, rings made of fiber composite material are also provided with the tool arm 1 are shed. The final state of the tool arm in the ready-to-use state can be seen from FIG. 3 (A).
  • the use of the intermediate pieces 3 and 5 makes it possible that fiber composite materials for the tool arm 1 can be used, whereby a considerable weight saving can be achieved. Furthermore, the risk of damage in the connection region from the tool arm 1 to tool insert 2 or to the fastening bolts between the tool arm. 1 and frame 14 significantly reduced. The above invention therefore represents a very special contribution in the relevant field of technology.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Percussive Tools And Related Accessories (AREA)
EP06005355A 2005-05-25 2006-03-16 Werkzeugarm aus Verbundmaterial, Verfahren zu seiner Herstellung sowie Werkzeugeinheit Withdrawn EP1726409A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510024039 DE102005024039A1 (de) 2005-05-25 2005-05-25 Werkzeugarm aus Verbundmaterial, Verfahren zu seiner Herstellung sowie Werkzeugeinheit

Publications (1)

Publication Number Publication Date
EP1726409A1 true EP1726409A1 (de) 2006-11-29

Family

ID=36764573

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06005355A Withdrawn EP1726409A1 (de) 2005-05-25 2006-03-16 Werkzeugarm aus Verbundmaterial, Verfahren zu seiner Herstellung sowie Werkzeugeinheit

Country Status (4)

Country Link
EP (1) EP1726409A1 (zh)
CN (1) CN1868688A (zh)
AU (1) AU2006201881A1 (zh)
DE (1) DE102005024039A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8505877B2 (en) 2006-11-08 2013-08-13 Weber-Hydraulik Gmbh Rescue device with spreading mechanism

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011101995U1 (de) * 2011-06-17 2012-09-19 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Presselement
CN102343636A (zh) * 2011-10-09 2012-02-08 阳江市科纳彩木工业有限公司 一种刀具手柄及其制作方法
DE102013108209B3 (de) * 2013-07-31 2014-12-11 Haimer Gmbh Werkzeugaufnahme
DE202016100341U1 (de) 2016-01-26 2017-05-02 Lukas Hydraulik Gmbh Spreizer mit schwenkbaren Spitzen
CN110802761A (zh) * 2019-06-05 2020-02-18 杭州巨星科技股份有限公司 一种碳纤维复合材料的制备方法及制品

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2621249A1 (de) 1976-05-13 1977-11-17 Frieseke & Hoepfner Gmbh Tragbares, hydraulisch betaetigtes unfall-rettungsgeraet mit spreizschnabel
US4397048A (en) * 1980-09-26 1983-08-09 Chas. A. Blatchford & Sons Limited Reinforced plastics artificial limb component and method for making same
US4531289A (en) 1983-01-28 1985-07-30 F. M. Brick Industries, Inc. High-power rescue tool
US4842249A (en) 1983-09-16 1989-06-27 Weigand George R Spreader type rescue tool
US4973028A (en) 1989-11-21 1990-11-27 Hale Fire Pump Company Rescue tool jaw
US5272811A (en) * 1991-06-20 1993-12-28 Hydr'am Hydraulically controlled self-contained multifunctional tool such as shears/separator
US5406826A (en) 1992-11-05 1995-04-18 Lukas Hydraulik Gmbh Spreader device with replaceable spreading jaws
US6389870B1 (en) 1998-10-30 2002-05-21 Orlando C. Vigil Blade tip for a rescue tool
US20030154829A1 (en) 2001-01-08 2003-08-21 Li-Tu Lin Wu Hand tool with a composite handle
US20050051014A1 (en) * 2003-07-17 2005-03-10 Lukas Hydraulik Gmbh Tool arrangement and application of said tool arrangement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07314509A (ja) * 1994-05-24 1995-12-05 Yuushin Seiki:Kk 射出成形機の樹脂成形品取出しロボット

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2621249A1 (de) 1976-05-13 1977-11-17 Frieseke & Hoepfner Gmbh Tragbares, hydraulisch betaetigtes unfall-rettungsgeraet mit spreizschnabel
US4397048A (en) * 1980-09-26 1983-08-09 Chas. A. Blatchford & Sons Limited Reinforced plastics artificial limb component and method for making same
US4531289A (en) 1983-01-28 1985-07-30 F. M. Brick Industries, Inc. High-power rescue tool
US4842249A (en) 1983-09-16 1989-06-27 Weigand George R Spreader type rescue tool
US4973028A (en) 1989-11-21 1990-11-27 Hale Fire Pump Company Rescue tool jaw
US5272811A (en) * 1991-06-20 1993-12-28 Hydr'am Hydraulically controlled self-contained multifunctional tool such as shears/separator
US5406826A (en) 1992-11-05 1995-04-18 Lukas Hydraulik Gmbh Spreader device with replaceable spreading jaws
US6389870B1 (en) 1998-10-30 2002-05-21 Orlando C. Vigil Blade tip for a rescue tool
US20030154829A1 (en) 2001-01-08 2003-08-21 Li-Tu Lin Wu Hand tool with a composite handle
US20050051014A1 (en) * 2003-07-17 2005-03-10 Lukas Hydraulik Gmbh Tool arrangement and application of said tool arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8505877B2 (en) 2006-11-08 2013-08-13 Weber-Hydraulik Gmbh Rescue device with spreading mechanism

Also Published As

Publication number Publication date
DE102005024039A1 (de) 2006-12-07
CN1868688A (zh) 2006-11-29
AU2006201881A1 (en) 2006-12-14

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