DE3802332A1 - Balance for a fork-lift truck - Google Patents

Balance for a fork-lift truck

Info

Publication number
DE3802332A1
DE3802332A1 DE19883802332 DE3802332A DE3802332A1 DE 3802332 A1 DE3802332 A1 DE 3802332A1 DE 19883802332 DE19883802332 DE 19883802332 DE 3802332 A DE3802332 A DE 3802332A DE 3802332 A1 DE3802332 A1 DE 3802332A1
Authority
DE
Germany
Prior art keywords
fork
lift truck
tongue
measuring
weighing device
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.)
Ceased
Application number
DE19883802332
Other languages
German (de)
Inventor
Peter Bruss
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.)
VULKAN-BRUSS MESSTECHNIK KG, 44653 HERNE, DE
Original Assignee
FOERDERTECHNIK BRUSS KG
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 FOERDERTECHNIK BRUSS KG filed Critical FOERDERTECHNIK BRUSS KG
Priority to DE19883802332 priority Critical patent/DE3802332A1/en
Publication of DE3802332A1 publication Critical patent/DE3802332A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks

Abstract

A weighing arrangement is described which, on a fork-lift truck, enables the load which is to be picked up to be read off on an indicating device directly after lifting. Here, each fork arm consists of three parts: the fork back (2), the measuring pin (3) and the fork tongue (4). Two of these fork arms are connected to the indicating device (6) via the signal line (5). Wire strain gauges are attached to the measuring pin (3) and are hermetically sealed by elastic bellows (9). The connecting part between the fork back (2) and the fork tongue (4) is here to consist of a measurement transducer. <IMAGE>

Description

Die Neuerung betrifft eine Wiegevorrichtung, die es erlaubt, an einem Hub­ stapler die aufzunehmende Last direkt nach Anheben an einem Anzeigegerät abzulesen.The innovation concerns a weighing device that allows it to be lifted stacker the load to be picked up directly after lifting on a display device read.

Bekannte Wiegevorrichtungen dieser Art haben alle ein Merkmal gemeinsam. Die aufzunehmende Last wird an geeigneter Stelle mit Hilfe von Dehnungs­ meßstreifen (DMS) gemessen und über einen Microprozessor in ein digitales Meßsignal umgewandelt und dann an einem hierfür geeigneten Sichtgerät an­ gezeigt.Known weighing devices of this type all have one feature in common. The load to be picked up is stretched at a suitable point Measuring strips (DMS) measured and converted into a digital via a microprocessor Converted measurement signal and then on a suitable display device shown.

Die Unterschiede der einzelnen Wiegevorrichtungen für diesen Zweck liegen in den verschiedenartigen Lastaufnahmevorrichtungen.The differences between the individual weighing devices for this purpose lie in various types of load handling devices.

Drei Vorrichtungen dieser Art werden als bekannt vorausgesetzt:Three devices of this type are assumed to be known:

  • 1. Ausführung
    An die vorhandene Gabelträgerplatte wird eine 2. Meßgabelträgerplatte mit Hilfe von 4-Differenzmeßbolzen befestigt, auf die dann die üblichen Gabelzinken aufgeschoben werden können.    1. Execution
    A second measuring fork carrier plate is attached to the existing fork carrier plate with the help of 4 differential measuring bolts, onto which the usual fork tines can then be pushed.
  • Merkmale dieser Ausfertigung:
    • A. Es entstehen durch die 2. Meßgabelträgerplatte erhebliche Vorbaumaße, die die Tragfähigkeit negativ beeinflussen.
    • B. Es ist eine Fachmontage zur Anbringung der Bohrungen in den vorhandenen Gabelträger nötig.
    Features of this copy:
    • A. The 2nd measuring fork support plate creates considerable front dimensions, which have a negative impact on the load-bearing capacity.
    • B. A professional assembly is necessary to make the holes in the existing fork carriage.
  • 2. Ausführung
    Auf die vorhandene Gabelträgerplatte wird eine Doppelgabelträgermeß­ platte geschoben. Diese Vorrichtung beinhaltet 2 Meßaufnehmer, die auf­ grund ihrer Anordnung nur die senkrechten Kräfte messen.    2. Execution
    A double fork carrier measuring plate is pushed onto the existing fork carrier plate. This device contains 2 sensors which, due to their arrangement, only measure the vertical forces.
  • Merkmale dieser Ausführung:
    • A. Die Fachmontage fällt weg, dafür wird das Vorbaumaß, welches die Trag­ fähigkeit negativ beeinflußt, noch größer.
    Features of this version:
    • A. The specialist assembly is omitted, but the front dimension, which has a negative impact on the load-bearing capacity, becomes even larger.
  • 3. Ausführung
    Die Dehnungsmeßstreifen zur Messung der Spannung, mit deren Hilfe das Gewicht ermittelt werden kann, ist in dieser Ausführung so in den Gabelzinken integriert, daß die Differenzmeßstellen im Unterzug der Gabelzinken untergebracht sind.    3. Execution
    The strain gauges for measuring the tension, with the help of which the weight can be determined, are integrated in the fork tines in this embodiment in such a way that the differential measuring points are accommodated in the beam of the fork tines.
  • Merkmale dieser Ausführung:
    • A. Vorbaumaße und Fachmontage werden eliminiert, dafür werden die Spannungsdefinition und Abdichtung der Meßstellen zum Problem. Die Applikation ist ebenfalls technisch nur unvollkommen durchzuführen.
    Features of this version:
    • A. Front dimensions and specialist assembly are eliminated, but the definition of voltage and sealing of the measuring points become a problem. The application is also technically incomplete.

Die hier vorliegende Neuerung schließt die oben aufgeführten Nach­ teile aus.The innovation here closes the above hand out.

Wie in Zeichnung Fig. 1 dargestellt, besteht jeder Gabelzinken aus 3 Teilen, dem Gabelrücken 2, dem Meßbolzen 3 und der Gabelzunge 4. Der Meßbolzen ist mit der Gabelzunge fest verstiftet und zusammen mit dieser im Gabelrücken verdrehungsfrei verspannt.As shown in drawing Fig. 1, each fork tine consists of 3 parts, the fork back 2 , the measuring pin 3 and the fork tongue 4th The measuring pin is firmly pinned to the fork tongue and clamped together with it in the back of the fork without twisting.

Dieser komplette Gabelzinken, von dem in der Regel für einen Hubstapler 2 Stück erforderlich sind, ist über eine Signalleitung 5 mit dem Microprozessor gesteuerten Anzeigegerät 6 verbunden.This complete fork tines, of which two are generally required for a forklift truck, are connected to the microprocessor-controlled display device 6 via a signal line 5 .

Die zur Meßgrößenbestimmung nötigen Dehnungsmeßstreifen 7 werden in Differenzschaltung auf den runden Meßbolzen 3 angebracht und durch einen elastischen Balg 9 hermetisch verschlossen.The strain gauges 7 required for determining the measured variables are attached to the round measuring bolt 3 in a differential circuit and hermetically sealed by an elastic bellows 9 .

Die Herstellung der Meßbolzen kann an geeigneter Stelle mit den nötigen Erfordernissen durchgeführt werden und dann in die Vorrichtung einge­ baut werden.The production of the measuring pins can be carried out at a suitable point with the necessary ones Requirements are performed and then turned into the device be built.

Es ist weder ein negatives Vorbaumaß vorhanden, noch eine Fachmontage nötig. Im Ersatzfall können Meßbolzen leicht ausgetauscht werden.There is neither a negative stem dimension, nor a specialist assembly necessary. If necessary, measuring pins can be easily replaced.

Weiterhin bietet diese Neuerung den Vorteil, daß auf wirkungsvolle Weise eine einfache Überlastvorrichtung angebracht werden kann. Furthermore, this innovation offers the advantage that effective Way a simple overload device can be attached.  

An den Gabelrücken 2 sind seitlich 2 Abstützknoten 8 angeschweißt, die durch die an der Gabelzunge angebrachten Einstellschrauben 9 bei Überlast in Anschlag gebracht werden.On the fork back 2 2 support knots 8 are welded on the side, which are brought to a stop in the event of an overload by the adjusting screws 9 attached to the fork tongue.

Alle auf den oder die Gabelzinken aufgebrachten Lasten werden durch die Differenzialanbringung der DMS-Streifen momentunabhängig und querkraftfrei gemessen.All loads placed on the fork or forks are covered by the differential attachment of the strain gauge strips regardless of the moment and measured without lateral force.

Claims (4)

1. Wiegevorrichtung für Hubstapler, dadurch gekennzeichnet, daß vorzugsweise aus 3 Teilen bestehende Gabelzinken so angeordnet sind, daß das Verbindungsteil zwischen Gabelrücken und Gabel­ zunge aus einem Meßaufnehmer besteht.1. Weighing device for forklift trucks, characterized in that fork parts consisting of 3 parts are preferably arranged so that the connecting part between the fork back and fork tongue consists of a sensor. 2. Wiegevorrichtung für Hubstapler nach Anspruch 1, dadurch gekenn­ zeichnet, daß zwischen dem Gabelrücken und der Gabelzunge eine einstellbare Überlastvorrichtung angebracht ist.2. Weighing device for lift truck according to claim 1, characterized records that a between the fork back and the fork tongue adjustable overload device is attached. 3. Wiegevorrichtung für Hubstapler nach Anspruch 1, dadurch gekenn­ zeichnet, daß der Meßbolzen rund ist und durch eine elastische Schutzhülle hermetisch verschlossen ist.3. Weighing device for lift truck according to claim 1, characterized records that the measuring pin is round and by an elastic Protective cover is hermetically sealed. 4. Wiegevorrichtung für Hubstapler nach Anspruch 1, dadurch gekenn­ zeichnet, daß der Meßbolzen durch eine Bohrung in der Gabelzunge so geschützt ist, daß Beschädigungen von außen unmöglich sind.4. Weighing device for lift truck according to claim 1, characterized records that the measuring bolt through a hole in the fork tongue is so protected that external damage is impossible.
DE19883802332 1988-01-27 1988-01-27 Balance for a fork-lift truck Ceased DE3802332A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883802332 DE3802332A1 (en) 1988-01-27 1988-01-27 Balance for a fork-lift truck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883802332 DE3802332A1 (en) 1988-01-27 1988-01-27 Balance for a fork-lift truck

Publications (1)

Publication Number Publication Date
DE3802332A1 true DE3802332A1 (en) 1989-08-03

Family

ID=6346076

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883802332 Ceased DE3802332A1 (en) 1988-01-27 1988-01-27 Balance for a fork-lift truck

Country Status (1)

Country Link
DE (1) DE3802332A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029925A1 (en) * 1990-09-21 1992-03-26 Foerdertechnik Bruss Kg Measuring arrangement for forklift truck - has diabolo coupling fixed between measurement pick=up and U=shaped shoe for expansion measuring strips
FR2675792A1 (en) * 1991-04-25 1992-10-30 Keuro Maschinenbau Gmbh TRANSSTOCKEUR, IN THE FORM OF A CRANE FOR A STORAGE WAREHOUSE OF A MATERIAL IN THE FORM OF BARS.
BE1009275A4 (en) * 1995-04-06 1997-01-07 Vliet Ronny Van De Mobile weighing unit to be attached to a transhipment vehicle
EP1306345A1 (en) * 2001-10-24 2003-05-02 STILL WAGNER GmbH & Co KG Measuring device on forks
DE102009007425B3 (en) * 2009-02-04 2010-07-29 Still Gmbh Sensor bolts for force detection and methods for force detection in a truck
WO2010140880A3 (en) * 2009-06-03 2012-06-28 Ravas Europe B.V. Lifting device and lifting vehicle
DE102013206319A1 (en) * 2013-04-10 2014-10-16 Deere & Company lifting device
US9316528B2 (en) 2014-08-13 2016-04-19 Cascade Corporation Weight-sensing fork blade assembly for engaging pallets in different alternative directions of approach
US10168202B2 (en) 2016-12-06 2019-01-01 Cascade Corporation Self-compensating weight sensing fork blade assembly
DE102018008033A1 (en) * 2018-10-11 2020-04-16 Syskomp Gmbh Lifting device in the form of a lifter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059710A (en) * 1959-07-13 1962-10-23 Baldwin Lima Hamilton Corp Indirect measurement of vertical forces
DE2557597A1 (en) * 1975-12-20 1977-06-30 Erich Brosa Accurate load measurement for fork lifting equipment - using two small strain gauges mounted directly on load bearing elements in forks
DE3040145A1 (en) * 1980-10-24 1982-06-24 Mess- und Wiegetechnik GmbH & Co KG, 3015 Wennigsen LOAD INDICATOR FOR CONVEYOR, IN PARTICULAR FORKLIFT
AT372922B (en) * 1981-09-28 1983-11-25 Voest Alpine Ag OVERLOAD PROTECTION DEVICE FOR MOBILE CHARGERS
US4421186A (en) * 1980-08-25 1983-12-20 Weigh-Tronix, Inc. Fork lift scale
DE8428717U1 (en) * 1984-09-29 1985-05-09 Zelo Konstruktions und Vertriebs GmbH, 6148 Heppenheim SCALE WITH ONE OR MORE LOAD CELLS
DE3542619A1 (en) * 1985-12-03 1987-06-04 Mwt Mess Und Wiegetechnik Gmbh Weighing prong for floor conveyors, especially fork-lift trucks

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059710A (en) * 1959-07-13 1962-10-23 Baldwin Lima Hamilton Corp Indirect measurement of vertical forces
DE2557597A1 (en) * 1975-12-20 1977-06-30 Erich Brosa Accurate load measurement for fork lifting equipment - using two small strain gauges mounted directly on load bearing elements in forks
US4421186A (en) * 1980-08-25 1983-12-20 Weigh-Tronix, Inc. Fork lift scale
DE3040145A1 (en) * 1980-10-24 1982-06-24 Mess- und Wiegetechnik GmbH & Co KG, 3015 Wennigsen LOAD INDICATOR FOR CONVEYOR, IN PARTICULAR FORKLIFT
AT372922B (en) * 1981-09-28 1983-11-25 Voest Alpine Ag OVERLOAD PROTECTION DEVICE FOR MOBILE CHARGERS
DE8428717U1 (en) * 1984-09-29 1985-05-09 Zelo Konstruktions und Vertriebs GmbH, 6148 Heppenheim SCALE WITH ONE OR MORE LOAD CELLS
DE3542619A1 (en) * 1985-12-03 1987-06-04 Mwt Mess Und Wiegetechnik Gmbh Weighing prong for floor conveyors, especially fork-lift trucks

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029925A1 (en) * 1990-09-21 1992-03-26 Foerdertechnik Bruss Kg Measuring arrangement for forklift truck - has diabolo coupling fixed between measurement pick=up and U=shaped shoe for expansion measuring strips
FR2675792A1 (en) * 1991-04-25 1992-10-30 Keuro Maschinenbau Gmbh TRANSSTOCKEUR, IN THE FORM OF A CRANE FOR A STORAGE WAREHOUSE OF A MATERIAL IN THE FORM OF BARS.
US5324157A (en) * 1991-04-25 1994-06-28 Keuro Maschinebau Gmbh & Co. Kg Combined material handling and weighing apparatus
BE1009275A4 (en) * 1995-04-06 1997-01-07 Vliet Ronny Van De Mobile weighing unit to be attached to a transhipment vehicle
EP1306345A1 (en) * 2001-10-24 2003-05-02 STILL WAGNER GmbH & Co KG Measuring device on forks
DE102009007425B3 (en) * 2009-02-04 2010-07-29 Still Gmbh Sensor bolts for force detection and methods for force detection in a truck
WO2010140880A3 (en) * 2009-06-03 2012-06-28 Ravas Europe B.V. Lifting device and lifting vehicle
DE102013206319A1 (en) * 2013-04-10 2014-10-16 Deere & Company lifting device
US9316528B2 (en) 2014-08-13 2016-04-19 Cascade Corporation Weight-sensing fork blade assembly for engaging pallets in different alternative directions of approach
US10168202B2 (en) 2016-12-06 2019-01-01 Cascade Corporation Self-compensating weight sensing fork blade assembly
DE102018008033A1 (en) * 2018-10-11 2020-04-16 Syskomp Gmbh Lifting device in the form of a lifter
DE102018008033B4 (en) 2018-10-11 2022-06-15 syskomp gehmeyr GmbH Lifting device in the form of a lifter

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: VULKAN-BRUSS MESSTECHNIK KG, 44653 HERNE, DE

8131 Rejection