DE9113920U1 - Mechanical lifting tongs with 3 gripping arms - Google Patents

Mechanical lifting tongs with 3 gripping arms

Info

Publication number
DE9113920U1
DE9113920U1 DE9113920U DE9113920U DE9113920U1 DE 9113920 U1 DE9113920 U1 DE 9113920U1 DE 9113920 U DE9113920 U DE 9113920U DE 9113920 U DE9113920 U DE 9113920U DE 9113920 U1 DE9113920 U1 DE 9113920U1
Authority
DE
Germany
Prior art keywords
arms
force
lifting tongs
gripping arms
mechanical lifting
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 - Lifetime
Application number
DE9113920U
Other languages
German (de)
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.)
FLEISCHER JOSEF 7990 FRIEDRICHSHAFEN DE
Original Assignee
FLEISCHER JOSEF 7990 FRIEDRICHSHAFEN DE
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 FLEISCHER JOSEF 7990 FRIEDRICHSHAFEN DE filed Critical FLEISCHER JOSEF 7990 FRIEDRICHSHAFEN DE
Priority to DE9113920U priority Critical patent/DE9113920U1/en
Publication of DE9113920U1 publication Critical patent/DE9113920U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/422—Gripping members engaging only the external or internal surfaces of the articles actuated by lifting force

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Description

BESCHREIBUNGDESCRIPTION

Mechanische Hebezange mit 3 GreifarmenMechanical lifting tongs with 3 gripping arms

Mechanische Hebezangen sind in der Regel mit 2 Greifarmen ausgestattet. Es gibt aber auch Hebezangen mit 4 Greifarmen. Dabei besteht der Kraft- und Lastarm aus einem Teil. Bei 3 Greifarmen würden sich die Kraftarme gegenseitig behindern. Es ist also nicht möglich, eine 3-armige Zange nach dem herkömmlichen Schema zu bauen. Man kann das Problem dadurch lösen, daß Kraft- und Lastarm aus 2 verschiedenen Teilen bestehen, wobei der Kraftarm vom Zangenmittelpunkt nach außen führt. Dadurch wird eine gegenseitige Behinderung vermieden. Mit insgesamt 4 Gelenkpunkten kann der Kraftarm um 180 Grad umgelenkt werden.Mechanical lifting tongs are usually equipped with 2 gripping arms. But there are also lifting tongs with 4 gripping arms. The force and load arm consist of one part. With 3 gripping arms the force arms would interfere with each other. It is therefore not possible to build a 3-armed tong according to the conventional scheme. The problem can be solved by having the force and load arms consist of 2 different parts, with the force arm leading outwards from the center of the tongs. This avoids mutual interference. With a total of 4 joint points the force arm can be redirected by 180 degrees.

Der Erfindung stand das Problem, unförmige Teile zu heben, zugrunde. Anlaß zu der Erfindung war das Problem, das beim Heben von größeren Steinen (Findlinge) auftritt. Es ist äußerst schwierig, einen Findling mit anderen Mitteln zu heben. Eine 3-armige Zange ist hier die beste Lösung. Sicherlich gibt es noch viele andere Anwendungsgebiete, z. B. Baumwurzeln, sonstige Ballenware oder einfach Gegenstände, die Ähnlichkeit mit einer deformierten Kugel haben.The invention was based on the problem of lifting misshapen parts. The reason for the invention was the problem that occurs when lifting larger stones (erratics). It is extremely difficult to lift an erratic using other means. A 3-armed pair of pliers is the best solution here. There are certainly many other areas of application, e.g. tree roots, other baled goods or simply objects that resemble a deformed ball.

Fig. 1 zeigt schematisch ein Kraft-Lastarm-Paar. Beim Hochheben des Kraftarmes (2), mit dem Gelenkpunkt 1, wird der Lastarm (1) mittels der Verbindungsstreben (4) entgegengesetzt nach innen bewegt.Fig. 1 shows a schematic of a force-load arm pair. When the force arm (2) is lifted up, with the hinge point 1, the load arm (1) is moved inwards in the opposite direction by means of the connecting struts (4).

Fig. 2 zeigt in der Draufsicht die Anordnung der Arm-Paare.Fig. 2 shows the arrangement of the arm pairs in plan view.

Claims (4)

SCHUTZANSPRÜCHEPROTECTION CLAIMS 1. Mechanische Hebezange mit 3 Greifarmen dadurch gekennzeichnet, daß die Lastarme (1) sternförmig angeordnet sind und sich diese entgegengesetzt zu den Kraftarmen (2) drehen.1. Mechanical lifting tongs with 3 gripping arms, characterized in that the load arms (1) are arranged in a star shape and rotate in the opposite direction to the force arms (2). 2. Hebezange nach Anspruch dadurch gekennzeichnet, daß die Kraftarme (2) vom Zangenmittelpunkt nach außen führen.2. Lifting tongs according to claim 1, characterized in that the force arms (2) lead outwards from the center of the tongs. 3. Hebezange nach Anspruch 1 und dadurch gekennzeichnet, daß die Kraftumlenkung mittels insgesamt 4 Gelenkpunkten (5,6,7,8) pro Armpaar erfolgt.3. Lifting tongs according to claim 1 and characterized in that the force is diverted by means of a total of 4 articulation points (5,6,7,8) per pair of arms. 4. Hebezange nach Anspruch 1 und dadurch gekennzeichnet, daß an den 3 Kraftarmen (2) Zugseile (3) angreifen und sich die Paarung Kraftarm (2) und Lastarm (1) unabhängig von den anderen 2 Paarungen bewegen kann.4. Lifting tongs according to claim 1 and characterized in that traction cables (3) engage the 3 force arms (2) and the pair of force arm (2) and load arm (1) can move independently of the other 2 pairs.
DE9113920U 1991-11-08 1991-11-08 Mechanical lifting tongs with 3 gripping arms Expired - Lifetime DE9113920U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9113920U DE9113920U1 (en) 1991-11-08 1991-11-08 Mechanical lifting tongs with 3 gripping arms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9113920U DE9113920U1 (en) 1991-11-08 1991-11-08 Mechanical lifting tongs with 3 gripping arms

Publications (1)

Publication Number Publication Date
DE9113920U1 true DE9113920U1 (en) 1992-01-09

Family

ID=6873077

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9113920U Expired - Lifetime DE9113920U1 (en) 1991-11-08 1991-11-08 Mechanical lifting tongs with 3 gripping arms

Country Status (1)

Country Link
DE (1) DE9113920U1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD41640A (en) *
DD70168A (en) *
US1769665A (en) * 1929-05-07 1930-07-01 Franklin L Farnsworth Grapple
DE7340276U (en) * 1973-03-05 1974-09-19 Oy Fiskars Ab Towing shears
DE2423220A1 (en) * 1973-05-14 1974-12-05 Ii Frank Raymond Skinner MULTIPLE GRIPPERS
US4569549A (en) * 1983-02-28 1986-02-11 Fanuc Limited Robot hand for industrial robots

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD41640A (en) *
DD70168A (en) *
US1769665A (en) * 1929-05-07 1930-07-01 Franklin L Farnsworth Grapple
DE7340276U (en) * 1973-03-05 1974-09-19 Oy Fiskars Ab Towing shears
DE2423220A1 (en) * 1973-05-14 1974-12-05 Ii Frank Raymond Skinner MULTIPLE GRIPPERS
US4569549A (en) * 1983-02-28 1986-02-11 Fanuc Limited Robot hand for industrial robots

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DE-Z: CARDAUN,U.: Greifer für Industrieroboter.In:f+h fördern und heben, 1978, Nr.1, S.40-43 *
DE-Z: Hebezeuge und Fördermittel 20, 1980, Nr.2, S.57 *

Similar Documents

Publication Publication Date Title
DE1235546B (en) Gripping tool
DE2220639B2 (en) Lifting and tilting device for sheet metal coils
DE738421C (en) Grippers, especially for blocks
DE9113920U1 (en) Mechanical lifting tongs with 3 gripping arms
CH630675A5 (en) Laundry rack
DE890624C (en) Floor conveyor
DE2231526A1 (en) JACK
DE888825C (en) Floor conveyor
DE2141317A1 (en) Gripping device for tree trunks, long goods or the like
DE2250244C2 (en) Walking beam conveyor for the transport of heavy goods, especially in metallurgical plants
DE69618033T2 (en) LIFTING AND SUPPORTING DEVICE
DE2054032C3 (en) Slab tongs
DE715161C (en) Block pliers
DE530026C (en) Gripper for wrapping machines
DE4227862C2 (en) Device for receiving objects, in particular hollow or full profile bars
DE1950948C3 (en) Load gripping device
DE1658367A1 (en) Transport vehicle for a transportable bridge
DE1921959A1 (en) Truss harness
AT228707B (en) Coupling for a hay grapple with top grapple to the lifting hydraulics of a tractor
DE888530C (en) Device for holding objects of all kinds
AT275796B (en) Wreath pliers
DD221444A1 (en) DEVICE FOR RAILING LASER SUPPLEMENTS
AT217761B (en) Device for moving goods lying on the floor to the side
AT35028B (en) Lifting device for mine hunt u. like
EP1020398A2 (en) Apparatus with a cable arrangement