DK9300477U3 - Device for mobile weighing of an object - Google Patents

Device for mobile weighing of an object Download PDF

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Publication number
DK9300477U3
DK9300477U3 DK9300477U DK9300477U DK9300477U3 DK 9300477 U3 DK9300477 U3 DK 9300477U3 DK 9300477 U DK9300477 U DK 9300477U DK 9300477 U DK9300477 U DK 9300477U DK 9300477 U3 DK9300477 U3 DK 9300477U3
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DK
Denmark
Prior art keywords
weighing
frame
weighing cell
processing unit
cell
Prior art date
Application number
DK9300477U
Other languages
Danish (da)
Inventor
Franciscus Maria Van Henricus
Original Assignee
Mettler Toledo Bv
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Publication of DK9300477U3 publication Critical patent/DK9300477U3/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G19/00Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/08Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
    • G01G19/083Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles lift truck scale
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65FGATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00Vehicles particularly adapted for collecting refuse
    • B65F3/02Vehicles particularly adapted for collecting refuse with means for discharging refuse receptacles thereinto
    • B65F3/04Linkages, pivoted arms, or pivoted carriers for raising and subsequently tipping receptacles
    • B65F3/041Pivoted arms or pivoted carriers
    • B65F3/043Pivoted arms or pivoted carriers with additional means for keeping the receptacle substantially vertical during raising
    • B65F3/045Four-bar linkages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65FGATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00Vehicles particularly adapted for collecting refuse
    • B65F3/02Vehicles particularly adapted for collecting refuse with means for discharging refuse receptacles thereinto
    • B65F2003/022Vehicles particularly adapted for collecting refuse with means for discharging refuse receptacles thereinto the discharging means comprising a device for determining the weight of the content of refuse receptacles

Description

i DK 93 00477 U3 Nærværende opfindelsen angår et apparat til mobil vejning af en genstand, fastgjort på et bevægeligt bæreelement, hvilket bæreelement er fastgjort på en ramme, og hvori i det mindste én vejecelle, forbundet med en ekstern be-5 handlingsenhed, er til stede mellem bæreelementet og rammen.The present invention relates to an apparatus for mobile weighing an object attached to a movable carrier, which carrier is secured to a frame and wherein at least one weighing cell, connected to an external processing unit, is for present between the support member and the frame.

Et sådant apparat kendes fra tysk offentliggørelsesskrift nr. 3.819.169. I dette tilfælde er en vejecelle anbragt mellem rammen og bæreelementet, med henblik på vejning af en affaldsbeholder. I dette tilfælde er rammen fast-10 gjort på bagsiden af en affaldslastvogn. Det analoge signal, der kommer fra måle- eller vejecellen, føres til en behandlingsenhed for videre bearbejdning.Such an apparatus is known from German Publication No. 3,819,169. In this case, a weighing cell is disposed between the frame and the support member for weighing a waste container. In this case, the frame is fixed to the back of a waste truck. The analog signal coming from the measuring or weighing cell is fed to a processing unit for further processing.

Selv om et sådant apparat teoretisk set har store fordele sammenlignet med andre sædvanlige apparater, på 15 grund af sin enkle opbygning, viser det sig, at apparatet omtalt i det tyske offentliggørelsesskrift ikke virker i praksis. For det første vil beholderen altid·bevæge sig i forhold til rammen, medmindre man venter uacceptabelt længe med henblik på at opnå en fuldstændig stabil tilstand for 20 beholderen. For det andet vil der være en betragtelig risiko for, at fejlsignaler på ledningen, der virker som antenne, mellem vejecellen og behandlingsenheden vil påvirke det målte resultat. Signalet fra vejecellen er ekstremt svagt. Den tredje ulempe er, at der opnås en forskellig udlæsning 25 afhængigt af placeringen af beholderens tyngdepunkt, idet virkningen af det moment, der udøves på bæreelementet ikke kan udkompenseres ved hjælp af vejecellen, som kendes fra dette tyske offentliggørelsesskrift. Dette betyder, at der fås forskellige udlæsninger afhængigt af, om en tung genstand 30 ligger forrest eller bagest i beholderen.Although such an apparatus theoretically has great advantages over other conventional apparatus, due to its simple structure, it appears that the apparatus disclosed in the German publication does not work in practice. First, the container will always · move relative to the frame, unless one waits unacceptably long to achieve a completely stable state of the container. Second, there will be a significant risk that error signals on the wire acting as an antenna between the weighing cell and the processing unit will affect the measured result. The signal from the weighing cell is extremely weak. The third disadvantage is that a different reading 25 is obtained depending on the location of the center of gravity of the container, since the effect of the torque exerted on the support element cannot be compensated by the weighing cell known from this German publication specification. This means that different readings are obtained depending on whether a heavy object 30 is in the front or rear of the container.

Formålet med nærværende opfindelse er at undgå denne ulempe. Dette opnås i forbindelse med et apparat af den ovennævnte art ved, at der i vejecellen er organer til digitalisering af signalet, som skal føres til behandlingsenheden, og at vejecellen omfatter organer til at kompensere for det moment, som påføres bæreelementet af genstanden.The object of the present invention is to avoid this disadvantage. This is achieved in connection with an apparatus of the aforementioned kind in that the weighing cell has means for digitizing the signal to be fed to the processing unit and the weighing cell comprises means for compensating the torque applied to the support element of the object.

35 2 DK 93 00477 U335 2 DK 93 00477 U3

Dette betyder, at tyngdepunktet for genstanden, som skal vejes, ikke længere er vigtigt.This means that the center of gravity of the object to be weighed is no longer important.

En vejecelle med organer til digitalisering er som sådan kendt fra US patent nr. 4.657.097. Digitaliseringen 5 sikrer, at risikoen for at der forekommer fejl i forbindelsen mellem vejecellen og behandlingsenheden fjernes helt. Den enklere behandling af udgangssignalet er også omtalt deri. Imidlertid er apparatet ifølge US patent nr. 4.657.097 ikke egnet til at kompensere for variationer i tyngdepunktet for 10 den genstand, som skal vejes, som et resultat af hvilken variation, der udøves et varierende moment på bæreelementet. Organerne til at kompensere for dette varierende moment kan eksempelvis omfatte kompenserende strain gauges, som allerede er til stede i sådanne vejeapparater, eller eventuelt 15 andre tilføjede strain gauges, som måler i andre retninger end de sædvanlige.A weighing cell with means for digitizing is known as such from US Patent No. 4,657,097. The digitization 5 ensures that the risk of errors in the connection between the weighing cell and the processing unit is completely removed. The simpler processing of the output signal is also discussed therein. However, the apparatus of U.S. Patent No. 4,657,097 is not suitable to compensate for variations in the center of gravity of the object to be weighed, as a result of which variation exerts a varying torque on the support member. The means for compensating for this varying torque may, for example, comprise compensating strain gauges already present in such weighers, or optionally 15 other added strain gauges which measure in directions other than the usual ones.

Med henblik på at bringe påvirkningen af momentet til at virke i én retning, er en hængselkonstruktion ifølge en fordelagtig udførelsesform for opfindelsen anbragt mellem 20 vejecellen og rammen.In order to cause the actuation of the torque to act in one direction, a hinge structure according to an advantageous embodiment of the invention is arranged between the weighing cell and the frame.

Det faktum at signalet fra vejecellen afgives i digital form betyder, at det er muligt at benytte forskellige vejeceller parallelt og forbinde signalerne fra disse ved hjælp af i det mindste én busforbindelse og føre signalerne 25 samlet til en behandlingsenhed. Dette gør det muligt, eksempelvis i forbindelse med en affaldslastvogn, at tømme to beholdere samtidigt og måle deres vægt samtidigt, medens kun én behandlingsenhed er nødvendig, og der er ikke nogen risiko for indbyrdes interferens mellem signaler.The fact that the signal from the weighing cell is transmitted in digital form means that it is possible to use different weighing cells in parallel and connect the signals from these by means of at least one bus connection and transmit the signals 25 together to a processing unit. This allows, for example, in the case of a waste truck, to empty two containers simultaneously and measure their weight simultaneously, while only one processing unit is needed and there is no risk of interference between signals.

30 Selv om opfindelsen ovenfor er beskrevet til brug på bagsiden af en affaldslastvogn, skal det forstås, at der eksisterer adskillige andre muligheder for anvendelse af opfindelsen. Eksempelvis er det muligt at fastgøre rammen ubevægeligt og konstruere bæreelementet af to dele, som er 35 bevægelige i forhold til hinanden. I dette tilfælde vil én del af bæreelementet være forbundet med rammen ved hjælp af 3 DK 93 00477 U3 vejecellen, medens den anden del er bevægelig i forhold til den første del i bæreelementet. Alle typer fastgørelsesindretninger, såsom kroge, kan anbringes på den bevægelige del af bæreelementet.Although the invention is described above for use on the back of a waste truck, it is to be understood that there are several other possibilities for using the invention. For example, it is possible to fasten the frame motionless and construct the support member of two parts which are movable relative to each other. In this case, one part of the support member will be connected to the frame by means of the weighing cell, while the other part is movable relative to the first part of the support member. All types of fasteners, such as hooks, can be placed on the movable portion of the support member.

5 Opfindelsen forklares i det følgende mere detaljeret under henvisning til et antal udførelseseksempler vist på tegningen, hvor fig. 1 skematisk viser bagsiden af en affaldslastbil med en affaldsbeholder, 10 fig. 2 viser diagrammet af vejecellen med behandlings apparatet benyttet i fig. 2, og fig. 3 viser en yderligere udførelsesform for ap-paratet ifølge opfindelsen.The invention is explained in more detail below with reference to a number of exemplary embodiments shown in the drawing, in which fig. 1 is a diagrammatic view of the back of a waste truck with a waste container; FIG. 2 shows the diagram of the weighing cell with the processing apparatus used in FIG. 2, and FIG. 3 shows a further embodiment of the apparatus according to the invention.

På fig. 1 er skitsemæssigt vist bagsiden af en af-15 faidslastbil 1. Fastgjort på denne er en parallelogramkonstruktion 2, på hvis ende der er fastgjort en ramme 3. Rammen 3 kan bevæges op og ned på en ikke nærmere vist måde ved hjælp af løfteindretninger, som virker på parallelogramkonstruktionen 2. Rammen 3 er forsynet med et hængselpunkt 20 4, i hvilket den ene ende af en vejecelle 5 er fastgjort således, at den kan dreje frit. Den anden ende af vejecellen 5 er fast forbundet med bæreelementet 6. Ved den øverste ende 7 er bæreelementet 6 forsynet med organer til at gribe en beholder 8. Som det fremgår af fig. 2, transmitteres 25 signalet fra vejecellen 5 ved hjælp af en forbindelse 9 og en koblingsindretning 10 til en busforbindelse 11, som er forbundet med en behandlingsenhed 12.In FIG. 1 is shown diagrammatically the back of an off-road truck 1. Attached thereto is a parallelogram structure 2, at whose end a frame 3 is attached. The frame 3 can be moved up and down in a manner not shown by lifting devices which acts on the parallelogram structure 2. The frame 3 is provided with a hinge point 20 4 in which one end of a weighing cell 5 is fixed so that it can rotate freely. The other end of the weighing cell 5 is firmly connected to the support member 6. At the upper end 7, the supporting member 6 is provided with means for gripping a container 8. As can be seen in FIG. 2, the signal from the weighing cell 5 is transmitted by means of a connection 9 and a coupling device 10 to a bus connection 11 which is connected to a processing unit 12.

Cellen, som benyttes her, er en såkaldt digital celle, dvs. det analoge signal fra strain gauges i cellen er al-30 lerede konverteret til et digitalt signal i cellen. Der er også organer i cellen til at kompensere for forskydning af beholderens tyngdepunkt. Som vist i fig. 1 ligger beholderen 8·s tyngdepunkt i punktet 13, på grund af det faktum, at et relativt tungt stykke materiale er anbragt nær bunden. Det 35 vil forstås, at hvis tyngdepunktet 13 bevæges yderligere til højre i fig. 1, har dette en virkning på det moment, 4 DK 93 00477 U3 som påvirker vejecellen. Kompensationen for momentet kan ifølge opfindelsen tilvejebringes ved, at forsyne vejecellen med kompenseringsorganer, som kan omfatte kompenseringsgau-ges, der allerede er til stede i sådanne vejeceller, eller 5 særlige kompenseringsgåuges anbragt i andre retninger. Ved digitaliseringen af signalet på forbindelsen 9 er det muligt at montere forskellige koblingselementer 10 parallelt og føre signalet via en busforbindelse til behandlingsenheden 12. Det er således muligt, eksempelvis i forbindelse med en 10 lastbil, at benytte forskellige vejeceller til vejning separat eller samtidigt af to beholdere, som skal tømmes i det væsentlige samtidigt, eller til vejning af en tung beholder.The cell used here is a so-called digital cell, ie. the analog signal from strain gauges in the cell is already converted to a digital signal in the cell. There are also means in the cell to compensate for displacement of the center of gravity of the container. As shown in FIG. 1, the center of gravity of the container 8 is at point 13, due to the fact that a relatively heavy piece of material is placed near the bottom. It will be appreciated that if the center of gravity 13 is moved further to the right in FIG. 1, this has an effect on the torque, which affects the weighing cell. According to the invention, the compensation for the torque can be provided by providing the weighing cell with compensating means which may comprise compensating gauges already present in such weighing cells or special compensation gauges disposed in other directions. By digitizing the signal on connection 9, it is possible to mount different coupling elements 10 in parallel and pass the signal via a bus connection to the processing unit 12. It is thus possible, for example in connection with a truck, to use different weighing cells for weighing separately or simultaneously by two containers to be emptied substantially simultaneously or for weighing a heavy container.

Fig. 3 viser en yderligere udførelsesform for opfin-15 delsen. I dette tilfælde er rammen 15 fastgjort ubevægeligt i forhold til omgivelserne, og bæreelementet 16 udgøres af to dele. Én del 17 i bæreelementet 16 er fastgjort ubevægeligt i forhold til delen 15 ved hjælp af vejecellen 18, medens den anden del mærket 18 kan bevæges på delen 17 i 20 bæreelementet. Et sådan apparat kan eksempelvis benyttes til alle arter af håndteringsapparater, hvor genstande, som bevæger sig, skal vejes. Hvis eksempelvis dets anvendelse er beregnet til et slagteri, kan en ophængningskrog 19 for slagtekroppe anbringes på delen 18. I den i fig. 3 viste 25 udførelsesform er det muligt at anbringe et antal vejeceller ved siden af hinanden, med det resultat, at vejepositionen bliver mindre kritisk og en større vægt kan bæres. Det er også muligt i forbindelse med den her viste udførelsesform at føre de digitale signaler, der kommer fra de forskellige 30 vejeceller, til en behandlingsenhed på den i fig. 2 viste måde. I tilfælde af denne udførelsesform kan positionen af tyngdepunktet for genstanden, som hænger ned fra krogen 19, varieres. Dette kan ske enten ved hjælp af selve genstanden eller ved det faktum, at bæreelementet 18 kan bevæge sig i 35 længderetningen.FIG. 3 shows a further embodiment of the invention. In this case, the frame 15 is fixedly movable relative to the surroundings, and the support member 16 is constituted by two parts. One part 17 of the support member 16 is fixedly movable relative to the part 15 by the weighing cell 18, while the other part labeled 18 can be moved on the part 17 of the support member. Such an apparatus can, for example, be used for all kinds of handling apparatus, where moving objects must be weighed. For example, if its use is intended for a slaughterhouse, a carcass suspension hook 19 may be placed on the portion 18. In the embodiment shown in FIG. 3, it is possible to place a number of weighing cells side by side, with the result that the weighing position becomes less critical and a greater weight can be carried. It is also possible, in connection with the embodiment shown here, to route the digital signals coming from the different weighing cells to a processing unit of the embodiment shown in FIG. 2. In this embodiment, the position of the center of gravity of the object hanging from the hook 19 may be varied. This can be done either by the object itself or by the fact that the support member 18 can move longitudinally.

Selv om et antal potentielle anvendelser af opfindel- DK 93 00477 U3 5 sen er angivet ovenfor, skal det forstås, at adskillige modifikationer kan foretages i forhold til disse. Eksempelvis er det muligt at benytte yderligere hængselkonstruktioner, hvorved det sikres, at kompenseringen kun sker for momenter i én retning. Dette betyder, at vejecellen beskrevet ovenfor kan være relativt enkelt konstrueret.Although a number of potential uses of the invention are set forth above, it should be understood that several modifications may be made in relation thereto. For example, it is possible to use additional hinge designs, thereby ensuring that the compensation occurs only for torques in one direction. This means that the weighing cell described above can be relatively simply constructed.

Claims (6)

1. Apparat til mobil vejning af en genstand fastgjort på et bevægeligt bæreelement, hvilket bæreelement er fastgjort på en ramme, og i hvilket i det mindste én vejecelle, 5 forbundet med en ekstern behandlingsenhed, er placeret mellem bæreelementet og rammen, kendetegnet ved, at vejecellen har organer til digitalisering af signalet, som skal fores til behandlingsenheden, og at vejecellen omfatter organer til at kompensere for det moment, som påføres bære-10 elementet af genstanden.An apparatus for mobile weighing an object attached to a movable carrier, said carrier being secured to a frame and in which at least one weighing cell, 5 connected to an external processing unit, is located between the carrier and the frame, characterized in that: the weighing cell has means for digitizing the signal to be fed to the processing unit, and the weighing cell comprises means for compensating the torque applied to the carrier member of the article. 2. Apparat ifølge krav 1, kendetegnet ved, at en hængselkonstruktion er anbragt mellem vejecellen og rammen.Apparatus according to claim 1, characterized in that a hinge structure is arranged between the weighing cell and the frame. 3. Apparat ifølge et af de foregående krav, k e n-15 detegnet ved, at der forefindes forskellige vejecel- ler, og at signalet fra disse føres til behandlingsenheden ved hjælp af i det mindste én busforbindelse.Apparatus according to one of the preceding claims, characterized in that there are different weighing cells and that the signal from these is transmitted to the processing unit by means of at least one bus connection. 4. Apparat ifølge et af de foregående krav, kendetegnet ved, at bæreelementet er konstrueret til 20 at gribe beholdere.Apparatus according to one of the preceding claims, characterized in that the supporting element is designed for gripping containers. 5. Apparat ifølge krav 4, kendetegnet ved, at rammen er forbundet med et køretøj.Apparatus according to claim 4, characterized in that the frame is connected to a vehicle. 6. Apparat ifølge et af kravene 1-4, kendetegnet ved, at rammen er fast, og bæreelementet eller tyng- 25 depunktet er bevægeligt i forhold til denne.Apparatus according to one of claims 1-4, characterized in that the frame is fixed and the supporting element or center of gravity is movable relative thereto.
DK9300477U 1992-02-27 1993-10-28 Device for mobile weighing of an object DK9300477U3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9200362A NL9200362A (en) 1992-02-27 1992-02-27 DEVICE FOR MOBILE WEIGHING OF AN OBJECT.

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DK9300477U3 true DK9300477U3 (en) 1993-10-28

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DK931196A DK119693D0 (en) 1992-02-27 1993-10-25 MOBILE WEIGHTING APPLIANCE OF AN ITEM
DK9300477U DK9300477U3 (en) 1992-02-27 1993-10-28 Device for mobile weighing of an object

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BE (1) BE1006154A3 (en)
CH (1) CH688423A5 (en)
DE (2) DE9203099U1 (en)
DK (2) DK119693D0 (en)
FR (1) FR2688062B3 (en)
GB (1) GB2270170B (en)
NL (1) NL9200362A (en)
SE (1) SE507109C2 (en)
WO (1) WO1993017308A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9200362A (en) * 1992-02-27 1993-01-04 Mettler Toledo Bv DEVICE FOR MOBILE WEIGHING OF AN OBJECT.
SE9401292L (en) * 1994-04-15 1996-01-04 Raoul Hamilton Device for emptying and weighing a garbage container
AUPM969794A0 (en) * 1994-11-28 1994-12-22 Kellenbach, Arthur Method and apparatus for weighing garbage
SE543789C2 (en) 2019-09-12 2021-07-20 Daprox Ab A weighing arrangement configured to be mounted on a lift device
CN110921160A (en) * 2019-12-05 2020-03-27 江苏悦达专用车有限公司 Dumping device of garbage truck
CN111559597B (en) * 2020-05-25 2021-08-24 长沙中联重科环境产业有限公司 Intelligent automatic feeding mechanism and control method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1166656A (en) * 1980-08-25 1984-05-01 Richard S. Bradley Fork lift scale
US4657097A (en) * 1984-02-13 1987-04-14 Reliance Electric Company Load cell
DE3447648C2 (en) * 1984-12-28 1986-12-11 Garbade, Rolf, 2804 Lilienthal Method and device for determining the weight of material, preferably garbage, when emptying it into a collection vehicle
DE3819169A1 (en) * 1988-06-04 1989-12-07 Pfister Gmbh Method and system for weighing the content of refuse bins
DE3910791C2 (en) * 1989-04-04 1994-08-11 Bernd Dipl Ing Merle Method and device for determining disposal fees
AT393911B (en) * 1989-06-08 1992-01-10 Mut Maschinen Umwelttechnik WASTE QUANTITY DEVICE
AT399048B (en) * 1991-07-05 1995-03-27 Riha Wolfgang Dr WASTE QUANTITY AND VOLUME DETECTION SYSTEM
NL9200362A (en) * 1992-02-27 1993-01-04 Mettler Toledo Bv DEVICE FOR MOBILE WEIGHING OF AN OBJECT.

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SE507109C2 (en) 1998-03-30
DK119693A (en) 1993-10-25
DK119693D0 (en) 1993-10-25
FR2688062A1 (en) 1993-09-03
GB2270170A (en) 1994-03-02
GB9321767D0 (en) 1993-12-22
FR2688062B3 (en) 1994-06-03
SE9303409L (en) 1993-10-15
DE4390688T1 (en) 1994-05-05
CH688423A5 (en) 1997-09-15
BE1006154A3 (en) 1994-05-24
SE9303409D0 (en) 1993-10-15
DE9203099U1 (en) 1992-05-14
WO1993017308A1 (en) 1993-09-02
GB2270170B (en) 1995-03-22
NL9200362A (en) 1993-01-04

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