FR2790463A1 - Weighing fork for shifting truck has weight sensor working in compression on horizontal arm, and two weight sensors working in traction on vertical arm - Google Patents
Weighing fork for shifting truck has weight sensor working in compression on horizontal arm, and two weight sensors working in traction on vertical arm Download PDFInfo
- Publication number
- FR2790463A1 FR2790463A1 FR9902665A FR9902665A FR2790463A1 FR 2790463 A1 FR2790463 A1 FR 2790463A1 FR 9902665 A FR9902665 A FR 9902665A FR 9902665 A FR9902665 A FR 9902665A FR 2790463 A1 FR2790463 A1 FR 2790463A1
- Authority
- FR
- France
- Prior art keywords
- arm
- sensor
- working
- weighing fork
- fork
- 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.)
- Granted
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
- G01G19/083—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles lift truck scale
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
-1- FOURCHE PESEUSE POUR ENGIN DE MANUTENTiON-1- WEIGHING FORK FOR HANDLING MACHINE
DESCRIPTIONDESCRIPTION
L'invention concerne une fourche peseuse du genre comportant au moins deux bras constitués, chacun, par un élément horizontal apte à recevoir un récepteur de charge et un élément vertical apte à être relié au tablier d'un engin porteur et des capteurs de poids aptes à être intercalés entre chaque bras et le récepteur de charge qui lui est associé. Dans les fourches peseuses les plus répandues, les capteurs de poids sont au nombre de quatre par bras et sont placés deux par deux à l'avant et à l'arrière de chaque bras et à l'extérieur. Ils sont du type à cisaillement travaillant à la compression. Le récepteur de charge, qui recouvre lesdits capteurs, possède une grande largeur qui constitue une The invention relates to a weighing fork of the kind comprising at least two arms each made up of a horizontal element capable of receiving a load receptor and a vertical element capable of being connected to the deck of a carrying machine and suitable weight sensors. to be inserted between each arm and the load receptor associated with it. In the most common weighing forks, the weight sensors are four in number per arm and are placed two by two at the front and rear of each arm and outside. They are of the shear type working in compression. The load receptor, which covers said sensors, has a large width which constitutes a
limitation non négligeable quant aux applications possibles. significant limitation as to possible applications.
Dans le but de remédier à cet inconvénient majeur, certains fabricants ont conçu des bras de fourche qui comportent seulement deux capteurs, l'un à l'avant et l'autre à l'arrière, centrés et encastrés sur chaque bras. Malheureusement, si toutefois la largeur aurait pu être sensiblement diminuée, principalement à l'avant, il n'en est rien à l'arrière du bras qui doit supporter l'essentiel de la charge. En outre, un nouvel inconvénient est apparu lié à l'instabilité du récepteur de charge qui ne repose que sur deux capteurs axiaux etqui est à l'origine d'erreurs In order to remedy this major drawback, some manufacturers have designed fork arms which have only two sensors, one at the front and the other at the rear, centered and embedded on each arm. Unfortunately, if however the width could have been significantly reduced, mainly at the front, it is not at the back of the arm which must support most of the load. In addition, a new drawback has appeared related to the instability of the load receptor which is based only on two axial sensors and which is the source of errors.
de mesure.of measurement.
C'est pour remédier à ces deux inconvénients que le déposant a conçu une fourche peseuse qui se caractérise essentiellement en ce qu'elle comporte, au niveau de chaque bras, coopérant entre eux: It is to remedy these two drawbacks that the applicant has designed a weighing fork which is essentially characterized in that it comprises, at the level of each arm, cooperating with each other:
- un capteur de poids, du type à cisaillement travaillant à la compres- - a weight sensor, of the shear type working on compression-
sion, placé axialement à l'avant de l'élément de bras horizontal, dans un logement dudit bras, et fixé, par l'une de ses extrémités, audit élément de bras horizontal et, par l'autre extrémité, à l'extrémité avant du récepteur de charge; - deux capteurs de poids, du type à cisaillement travaillant à la traction, placés de chaque côté de l'élément de bras vertical, en dehors de la zone fonctionnelle dudit élément de bras horizontal, et fixes, -2- chacun, par l'une de ses extrémités, audit élément de bras vertical au moyen d'une liaison articulée et, par l'autre extrémité, à l'extrémité arrière, élargie, du récepteur de charge, également au moyen d'une liaison articulée. Ainsi réalisée, la fourche selon l'invention comporte un récepteur de charge dont la largeur est uniquement fonction du capteur situé à l'avant, les capteurs situés à l'arrière n'ayant aucune incidence sur ladite largeur. Selon des particularités de l'invention: - le capteur travaillant à la compression est du type à barreau; sion, placed axially in front of the horizontal arm element, in a housing of said arm, and fixed, by one of its ends, to said horizontal arm element and, by the other end, at the end front of the load receptor; - two weight sensors, of the shear type working under tension, placed on each side of the vertical arm element, outside the functional area of said horizontal arm element, and fixed, -2- each, by the one of its ends, to said vertical arm element by means of an articulated connection and, by the other end, to the rear, enlarged end, of the load receptor, also by means of an articulated connection. Thus produced, the fork according to the invention comprises a load receptor whose width is solely a function of the sensor located at the front, the sensors located at the rear having no effect on said width. According to features of the invention: - the sensor working in compression is of the bar type;
- les capteurs travaillant à la traction sont du type en "S". - the sensors working in traction are of the "S" type.
Les caractéristiques et les avantages de l'invention vont apparaître The characteristics and advantages of the invention will appear
plus clairement à la lecture de la description détaillée qui suit d'au more clearly on reading the following detailed description of
moins un mode de réalisation préféré de celle-ci donné à titre d'exemple least one preferred embodiment thereof given by way of example
non limitatif et représenté aux dessins annexés. nonlimiting and shown in the accompanying drawings.
Sur ces dessins: - la figure 1 est une vue en coupe AA d'un bras de fourche équipé des capteurs et du récepteur de charge; In these drawings: - Figure 1 is a sectional view AA of a fork arm equipped with load cells and sensors;
- la figure 2 est une vue en coupe BB de l'ensemble précédent. - Figure 2 is a sectional view BB of the previous assembly.
La fourche peseuse représentée aux figures comporte au moins deux bras (1) constitués, chacun, par un élément horizontal (2) apte à recevoir un récepteur de charge (4) et par un élément vertical (3) apte à être relié au tablier d'un engin porteur et des capteurs de poids (5,6) aptes à être intercalés entre chaque bras (1) et le récepteur de charge (4) qui The weighing fork shown in the figures comprises at least two arms (1) each constituted by a horizontal element (2) capable of receiving a load receptor (4) and by a vertical element (3) capable of being connected to the apron d '' a carrier and weight sensors (5,6) able to be interposed between each arm (1) and the load receptor (4) which
lui est associé.associated with it.
Elle comporte, au niveau de chaque bras (1), coopérant entre eux: - un capteur de poids (5), du type à cisaillement travaillant à la compression, placé axialement à l'avant de l'élément de bras horizontal (2), dans un logement (7,8) dudit bras, et fixé, par l'une de ses extrémités, à l'élément de bras horizontal (2) et, par l'autre extrémité, à l'extrémité avant du récepteur de charge (4); - deux capteurs de poids (6), du type à cisaillement travaillant à la traction, placés de chaque côté de l'élément de bras vertical (3), en dehors de la zone fonctionnelle de l'élément de bras horizontal (2) et fixés, chacun, par l'une de ses extrémités, à l'élément de bras vertical -3- (3) au moyen d'une liaison articulée (9) et, par l'autre extrémité, à l'extrémité arrière (10), élargie, du récepteur de charge (4) au moyen It comprises, at the level of each arm (1), cooperating with each other: - a weight sensor (5), of the shear type working on compression, placed axially in front of the horizontal arm element (2) , in a housing (7,8) of said arm, and fixed, by one of its ends, to the horizontal arm element (2) and, by the other end, to the front end of the load receptor (4); - two weight sensors (6), of the shear type working under tension, placed on each side of the vertical arm element (3), outside the functional area of the horizontal arm element (2) and fixed, each by one of its ends, to the vertical arm element -3- (3) by means of an articulated link (9) and, by the other end, to the rear end (10 ), enlarged, of the load receptor (4) by means
d'une liaison articulée (11).an articulated link (11).
Les liaisons articulées (9) et (11) sont réalisées au moyen de pièces (12) et (13) qui comportent, à une extrémité, une tige filetée apte à se visser dans le capteur (6) et, à l'autre extrémité, une tête comportant The articulated connections (9) and (11) are produced by means of parts (12) and (13) which comprise, at one end, a threaded rod capable of being screwed into the sensor (6) and, at the other end , a head comprising
un logement pourvu d'une bague (14) du type rotulien. a housing provided with a patellar type ring (14).
Le capteur (5) peut être du type à barreau et les capteurs (6) peuvent The sensor (5) can be of the bar type and the sensors (6) can
être du type en "S".be of the "S" type.
Le capteur (5) est fixé, par l'une de ses extrémités, dans le fond du The sensor (5) is fixed, by one of its ends, in the bottom of the
logement (7) de l'élément de bras horizontal (2). housing (7) of the horizontal arm element (2).
Le logement (8), dans lequel débouche l'autre extrémité du capteur (5), est fermé, dans sa partie avant, par une paroi (21) de protection dudit capteur. L'extrémité arrière (10), élargie, du récepteur de charge (4), comporte The housing (8), into which the other end of the sensor (5) opens, is closed, in its front part, by a wall (21) for protecting said sensor. The enlarged rear end (10) of the load receptor (4) has
un retour (15) de protection du capteur (6). a sensor protection return (15) (6).
Les pièces (12) sont fixées à l'élément de bras vertical (3) au moyen The parts (12) are fixed to the vertical arm element (3) by means
de vis (16) passant au travers des pièces (17). screws (16) passing through parts (17).
Les pièces (13) sont fixées à l'arrière du récepteur de charge (4) au moyen de vis (18) se vissant dans les pièces (19) solidaires dudit The parts (13) are fixed to the rear of the load receptor (4) by means of screws (18) which are screwed into the parts (19) integral with said
récepteur de charge.charge receiver.
L'avant du récepteur de charge (4) est fixé à l'avant du capteur (5) The front of the load receptor (4) is attached to the front of the sensor (5)
au moyen de vis (20).by means of screws (20).
Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés pour lesquels on pourra prévoir d'autres variantes, en particulier dans: - les types de capteurs à compression ou à traction utilisés; - les moyens de fixation desdits capteurs à la fourche et au récepteur de charge; - la forme et les dimensions des divers sous-ensembles constitutifs de Of course, the invention is not limited to the embodiments described and shown for which other variants can be provided, in particular in: - the types of compression or traction sensors used; - the means for fixing said sensors to the fork and to the load receptor; - the shape and dimensions of the various constituent sub-assemblies of
la fourche selon l'invention.the fork according to the invention.
-4--4-
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9902665A FR2790463B1 (en) | 1999-03-02 | 1999-03-02 | WEIGHING FORK FOR HANDLING MACHINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9902665A FR2790463B1 (en) | 1999-03-02 | 1999-03-02 | WEIGHING FORK FOR HANDLING MACHINE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2790463A1 true FR2790463A1 (en) | 2000-09-08 |
FR2790463B1 FR2790463B1 (en) | 2001-05-11 |
Family
ID=9542793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9902665A Expired - Fee Related FR2790463B1 (en) | 1999-03-02 | 1999-03-02 | WEIGHING FORK FOR HANDLING MACHINE |
Country Status (1)
Country | Link |
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FR (1) | FR2790463B1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10152358A1 (en) * | 2001-10-24 | 2003-05-08 | Still Wagner Gmbh & Co Kg | Measuring device on forks |
FR2938911A1 (en) * | 2008-11-24 | 2010-05-28 | Balea | Measurement system for dynamic measurement of load raised by lifting machine, has control and processing unit comparing data provided by current sensor to calibration data and generating data relative to weight of load based on comparison |
WO2014123416A1 (en) * | 2013-02-07 | 2014-08-14 | Ravas Europe B.V. | Lift truck and lifting member |
WO2018226099A1 (en) * | 2017-06-08 | 2018-12-13 | Ravas Europe B.V. | Device for moving a load and a lifting member therefor |
US11473965B2 (en) | 2017-06-08 | 2022-10-18 | Ravas Europe B.V. | Device for moving a load and a lifting member therefor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050714A2 (en) * | 1980-10-24 | 1982-05-05 | Mess- und Wiegetechnik GmbH & Co. KG | Load indicator for floor movers, especially fork lifters |
EP0280796A1 (en) * | 1987-02-03 | 1988-09-07 | van Seumeren, Raphael Franciscus Maria | Weighing device for a forklifttruck |
FR2727394A1 (en) * | 1994-11-30 | 1996-05-31 | Ascoforge Safe | Material handling fork with integral weighing |
-
1999
- 1999-03-02 FR FR9902665A patent/FR2790463B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050714A2 (en) * | 1980-10-24 | 1982-05-05 | Mess- und Wiegetechnik GmbH & Co. KG | Load indicator for floor movers, especially fork lifters |
EP0280796A1 (en) * | 1987-02-03 | 1988-09-07 | van Seumeren, Raphael Franciscus Maria | Weighing device for a forklifttruck |
FR2727394A1 (en) * | 1994-11-30 | 1996-05-31 | Ascoforge Safe | Material handling fork with integral weighing |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10152358A1 (en) * | 2001-10-24 | 2003-05-08 | Still Wagner Gmbh & Co Kg | Measuring device on forks |
FR2938911A1 (en) * | 2008-11-24 | 2010-05-28 | Balea | Measurement system for dynamic measurement of load raised by lifting machine, has control and processing unit comparing data provided by current sensor to calibration data and generating data relative to weight of load based on comparison |
WO2014123416A1 (en) * | 2013-02-07 | 2014-08-14 | Ravas Europe B.V. | Lift truck and lifting member |
US9845228B2 (en) | 2013-02-07 | 2017-12-19 | Ravas Europe B.V. | Lift truck and lifting member |
WO2018226099A1 (en) * | 2017-06-08 | 2018-12-13 | Ravas Europe B.V. | Device for moving a load and a lifting member therefor |
US11473965B2 (en) | 2017-06-08 | 2022-10-18 | Ravas Europe B.V. | Device for moving a load and a lifting member therefor |
CN110719887B (en) * | 2017-06-08 | 2023-10-13 | 拉瓦斯欧洲有限公司 | Device for moving a load and lifting member therefor |
Also Published As
Publication number | Publication date |
---|---|
FR2790463B1 (en) | 2001-05-11 |
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