FR2611265A3 - Scales - Google Patents

Scales Download PDF

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Publication number
FR2611265A3
FR2611265A3 FR8801990A FR8801990A FR2611265A3 FR 2611265 A3 FR2611265 A3 FR 2611265A3 FR 8801990 A FR8801990 A FR 8801990A FR 8801990 A FR8801990 A FR 8801990A FR 2611265 A3 FR2611265 A3 FR 2611265A3
Authority
FR
France
Prior art keywords
weighing
weighing plate
parts
connecting member
balance
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
Application number
FR8801990A
Other languages
French (fr)
Other versions
FR2611265B3 (en
Inventor
Melle Boer
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2611265A3 publication Critical patent/FR2611265A3/en
Application granted granted Critical
Publication of FR2611265B3 publication Critical patent/FR2611265B3/en
Expired legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G3/00Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/14Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
    • G01G3/1402Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G21/00Details of weighing apparatus
    • G01G21/22Weigh pans or other weighing receptacles; Weighing platforms
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G21/00Details of weighing apparatus
    • G01G21/23Support or suspension of weighing platforms

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Force In General (AREA)
  • Package Frames And Binding Bands (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The invention relates to scales fitted with a weighing platform 6, and with two weighing plate parts 4 and 5, which are hinged together in a central part of the scales by a linkage member 13 and a weighing element 15, a force being transmitted from the weighing plate parts 4, 5 to the weighing element through the linkage member 13. In order to improve the weighing precision, the linkage member 13 consists of a single elastic element forming a single body with the two weighing plate parts 4, 5. The weighing plate parts 4, 5 are preferably made of steel.

Description

'Balance."
L'invention concerne une balance comportant un plateau de pesage, deux parties de plaque de pesage articulées l'une sur l'autre dans une partie centrale de la balance par un organe de liaison et un élément de pesage, une force étant transmise des plaques de pesage à l'élément de pesage à travers l'organe de liaison.
'Balance."
The invention relates to a balance comprising a weighing plate, two parts of weighing plate articulated one on the other in a central part of the balance by a connecting member and a weighing element, a force being transmitted from the plates. weighing element to the weighing element through the connecting member.

Une telle balance est connue du document W0 81/02341. La balance décrite dans ce document est munie de deux parties de plaque de pesage en V qui sont articulées au sommet d'angle du V au moyen d'un organe de liaison. Cet organe de liaison est constitué par deux ressorts-lames fixés chacun par une vis sur l'une des faces d'une partie de plaque de pesage et transmettant la force à mesureur à un élément de pesage par l'intermédiaire d'un organe d'appui. Such a balance is known from document W0 81/02341. The balance described in this document is provided with two parts of a V-shaped weighing plate which are articulated at the corner apex of the V by means of a connecting member. This connecting member is constituted by two leaf springs each fixed by a screw on one of the faces of a part of the weighing plate and transmitting the force to the measurer to a weighing element via a member d 'support.

L'invention vise à fournir une amélioration de l'organe de liaison prévu entre les parties de plaque de pesage de la balance définie dans le préambule. A cet effet, la balance conforme à l'invention est caractérisée en ce que l'organe de liaison est constitué par un seul élément élastique faisant corps avec les deux plaques de pesage. The invention aims to provide an improvement in the connecting member provided between the weighing plate parts of the balance defined in the preamble. To this end, the balance according to the invention is characterized in that the connecting member is constituted by a single elastic element integral with the two weighing plates.

L'avantage de cette construction est d'augmenter la précision de pesage du fait que l'organe de liaison en soi élastique est rigidement lié aux deux plaques de pesage et qu'il ne provoque donc pas d'hystérésis. The advantage of this construction is to increase the weighing precision because the inherently elastic connecting member is rigidly linked to the two weighing plates and therefore does not cause hysteresis.

De préférence, les parties de plaque de pesage sont en acier. Grâce aux propriétés élastiques de l'acier, l'organe de liaison est automatiquement doté de l'élasticité voulue. Preferably, the weighing plate parts are made of steel. Thanks to the elastic properties of steel, the connecting member is automatically given the desired elasticity.

La description suivante, en regard du dessin annexé, permettra de mieux comprendre comment l'invention est réalisée. The following description, with reference to the appended drawing, will allow a better understanding of how the invention is implemented.

La figure 1 est une vue en perspective d'une balance. Figure 1 is a perspective view of a balance.

La figure 2 est une vue de dessous d'une plaque de pesage de la balance de la figure 1, le boîtier et l'élément de pesage étant enlevés. Figure 2 is a bottom view of a weighing plate of the scale of Figure 1, the housing and the weighing element removed.

La figure 3 est une coupe transversale de la balance suivant la ligne 111-111 de la figure 2. Figure 3 is a cross section of the scale taken along line 111-111 of Figure 2.

La figure 4 est une coupe transversale partielle à échelle agrandie de la balance suivant la ligne IV-IV de la figure 2. FIG. 4 is a partial cross-section on an enlarged scale of the balance along the line IV-IV of FIG. 2.

La balance est constituée par une partie de boitier inférieure 1 et une partie de boîtier supérieure 2. Une plaque de pesage en acier 3 est fixée sur la partie de boitier supérieure 2 à ses bords 3a, 3b, notamment aux endroits A. La plaque de pesage 3 est en fait constituée par deux parties 4 et 5 liées chacune par des parties marginales étroites 4a, 4b et 5a, 5b aux bords 3a, 3b. Les parties de plaque de pesage 4 et 5 présentent chacune une forme de W et s'emboîtent pour ainsi dire à l'envers, c'est-à-dire que les branches extérieures de la partie de plaque de pesage 5 sont passées entre les branches extérieures et la branche centrale de la partie de plaque de pesage 4. The balance consists of a lower housing part 1 and an upper housing part 2. A steel weighing plate 3 is fixed to the upper housing part 2 at its edges 3a, 3b, in particular at locations A. The plate weighing 3 is in fact constituted by two parts 4 and 5 each linked by narrow marginal parts 4a, 4b and 5a, 5b at the edges 3a, 3b. The weighing plate parts 4 and 5 each have a W shape and are interlocked so to speak upside down, that is to say that the outer branches of the weighing plate part 5 are passed between the outer branches and the central branch of the weighing plate part 4.

Un plateau de pesage 6 est fixé à pivotement aux parties de plaque de pesage 4 et 5 par l'intermédiaire d'une plaque d'appui 7. Cette liaison à pivotement est formée par quatre ressorts-lames 8, 9, 10 et il essentiellement en I qui sont réunis, d'un cdté,aux appuis 12 de la plaque d'appui 7 et, de l'autre côté, aux extrémités 4c, 4d, 5c et 5d des branches extérieures des parties de plaque de pesage en W 4 et 5. A weighing plate 6 is pivotally fixed to the weighing plate parts 4 and 5 by means of a support plate 7. This pivoting connection is formed by four leaf springs 8, 9, 10 and it essentially in I which are joined, on one side, to the supports 12 of the support plate 7 and, on the other side, at the ends 4c, 4d, 5c and 5d of the external branches of the parts of the weighing plate in W 4 and 5.

Au centre de la plaque de pesage 3, les extrémités 4e et 5e des branches centrales des parties de plaque de pesage en W 4 et 5 sont articulées l'une sur l'autre par un organe de liaison en forme de pont 13. Cet organe de liaison a une faible largeur et fait fonction d'élément élastique entre les parties de plaque de pesage. Sur les figures, l'organe de liaison 13 est représenté comme faisant corps avec les parties de plaque de pesage 4 et 5. In the center of the weighing plate 3, the ends 4 and 5 of the central branches of the parts of the weighing plate in W 4 and 5 are articulated one on the other by a connecting member in the form of a bridge 13. This member of connection has a small width and acts as an elastic element between the parts of the weighing plate. In the figures, the connecting member 13 is shown as being integral with the weighing plate parts 4 and 5.

L'organe de liaison 13 présente une saillie en forme de pli 14 dirigée vers le bas (voir figure 4).The connecting member 13 has a fold-like projection 14 directed downwards (see FIG. 4).

Une charge exercée sur le plateau de pesage 6 est transmise à un élément de pesage 15 par l'intermédiaire de la plaque de pesage 3. A cet effet, la force est transmise à travers la saillie en pli 14 å une broche 16 d'un bras 17 de l'élément de pesage 15. Le bras 17 est façonné de façon à exercer un couple de flexion sur un élément de flexion 18. L'élément de flexion est muni d'extensomètres 19 pour mesurer la flexion et donc la charge. A load exerted on the weighing plate 6 is transmitted to a weighing element 15 via the weighing plate 3. To this end, the force is transmitted through the folded projection 14 to a pin 16 of a arm 17 of the weighing element 15. The arm 17 is shaped so as to exert a bending torque on a bending element 18. The bending element is provided with extensometers 19 to measure the bending and therefore the load.

Il s'est avéré qu'unie telle construction permet d'obtenir une grande précision de pesage et que la précision de pesage est indépendante de l'endroit qu'occupe la masse à peser sur le plateau de mesure, que ce soit près des bords ou au centre de ce plateau.  It turns out that such a construction makes it possible to obtain a high weighing precision and that the weighing precision is independent of the place occupied by the mass to be weighed on the measuring platform, whether near the edges. or in the center of this tray.

Claims (2)

REVENDICATIONS:CLAIMS: 1. Balance colportant un plateau de pesage (6), deux parties de plaque de pesage (4, 5) articulées l'une sur l'autre dans une partie centrale de la balance par un organe de liaison (13) et un élément de pesage (15), une force étant transmise des plaques de pesage à l'élément de pesage à travers l'organe de liaison, caractérisée en ce que l'organe de liaison (13) est constitué par un seul élément élastique faisant corps avec les deux parties de plaque de pesage (4, 5).1. Balance peddling a weighing plate (6), two parts of weighing plate (4, 5) articulated one on the other in a central part of the balance by a connecting member (13) and an element of weighing (15), a force being transmitted from the weighing plates to the weighing element through the connecting member, characterized in that the connecting member (13) consists of a single elastic element integral with the two parts of the weighing plate (4, 5). 2. Balance selon la revendication (1), caractérisé en ce que les parties de plaque de pesage (4, 5) sont en acier. 2. Balance according to claim (1), characterized in that the weighing plate parts (4, 5) are made of steel.
FR8801990A 1987-02-19 1988-02-19 BALANCE Expired FR2611265B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8700409A NL8700409A (en) 1987-02-19 1987-02-19 SCALE.

Publications (2)

Publication Number Publication Date
FR2611265A3 true FR2611265A3 (en) 1988-08-26
FR2611265B3 FR2611265B3 (en) 1989-02-10

Family

ID=19849597

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8801990A Expired FR2611265B3 (en) 1987-02-19 1988-02-19 BALANCE

Country Status (5)

Country Link
DE (1) DE8801039U1 (en)
ES (1) ES1005544Y (en)
FR (1) FR2611265B3 (en)
IT (1) IT213695Z2 (en)
NL (1) NL8700409A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2068491T3 (en) * 1990-11-09 1995-04-16 Philips Electronics Nv VOLTAGE INDICATOR ELEMENT.
JP2561402B2 (en) * 1991-04-18 1996-12-11 株式会社テック Load cell scale

Also Published As

Publication number Publication date
ES1005544U (en) 1988-11-16
NL8700409A (en) 1988-09-16
IT8820661V0 (en) 1988-02-16
IT213695Z2 (en) 1990-01-22
DE8801039U1 (en) 1988-04-14
ES1005544Y (en) 1989-05-01
FR2611265B3 (en) 1989-02-10

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