[go: up one dir, main page]

WO2006048079A1 - Balance a plateau superieur pourvue d'un dispositif de protection conter le vent - Google Patents

Balance a plateau superieur pourvue d'un dispositif de protection conter le vent Download PDF

Info

Publication number
WO2006048079A1
WO2006048079A1 PCT/EP2005/010159 EP2005010159W WO2006048079A1 WO 2006048079 A1 WO2006048079 A1 WO 2006048079A1 EP 2005010159 W EP2005010159 W EP 2005010159W WO 2006048079 A1 WO2006048079 A1 WO 2006048079A1
Authority
WO
WIPO (PCT)
Prior art keywords
pan
weighing pan
weighing
balance according
windshield
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
PCT/EP2005/010159
Other languages
German (de)
English (en)
Inventor
Otto Kuhlmann
Rudolf Müller
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.)
Sartorius AG
Original Assignee
Sartorius AG
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 Sartorius AG filed Critical Sartorius AG
Publication of WO2006048079A1 publication Critical patent/WO2006048079A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G21/00—Details of weighing apparatus
    • G01G21/28—Frames, Housings
    • G01G21/286—Frames, Housings with windshields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G21/00—Details of weighing apparatus
    • G01G21/22—Weigh pans or other weighing receptacles; Weighing platforms

Definitions

  • the invention relates to an above-scale balance with a weighing pan for receiving the weighing material and with a surrounding the weighing pan, upwardly open windbreak.
  • Such a balance is known for example from DE 81 04 877 Ul.
  • the usual windbreak has the shape of a cylindrical ring, which surrounds the weighing pan at some distance.
  • a disadvantage of this known type is that the cylindrical ring must be relatively high in order to achieve effective protection against air currents, and thereby interferes with the loading of the weighing pan.
  • the object of the invention is therefore to achieve a good protection against wind influences in an upper shell scale of the type mentioned with a low wind protection and at the same time the ease of use when loading the balance scale - especially for small scales - to improve.
  • this is achieved in that the top of the weighing pan and the inner surface of the windshield at least approximately one form a common, outwardly rising surface and that the weighing pan and windscreen are separated only by a narrow gap.
  • the upper side of the weighing pan and the inner surface of the draft shield form, for example, a common conical surface or a truncated cone surface or a paraboloid of revolution and are separated from each other only by a narrow gap.
  • Air movements from the environment are guided through the inner surface of the windshield in a direction parallel to this inner surface and thus also paint parallel to the Waagschalenober Assembly on the pan and thereby generate no vertical impact forces as in the usual windshield / Waagschalen- geometry.
  • the usual windshield / weighing pan geometry is mainly due to the fact that horizontal air currents at the top of the windshield are broken down by vortex formation and thus kept away from the much lower scale
  • the proposed geometry aims, above all, laminar and non-reactive on the balance pan away forward. As a result, the height of the windbreak can be kept significantly lower than the windbreak according to the prior art. As a result, the accessibility of the weighing pan is significantly improved.
  • the proposed geometry has the additional advantage that it gives a centering effect when placing the items to be weighed.
  • the weighing sample must only be placed by the user of the balance at any point on the weighing pan or the inner surface of the draft shield and will slip or roll on this surface into the center of the weighing pan.
  • the loading of a small weighing pan - for example, with 10 mm diameter - with small weighing material - for example, with 3 mm diameter - is considerably simplified, since the sample has to be stored only somewhere within the inner windscreen - for example, with 30 mm diameter.
  • This simplification of the manual Feeding allows smaller scales to be used in this special case than is common practice, which of course further reduces wind sensitivity.
  • FIG. 1 shows a section through weighing pan and draft shield in an exemplary embodiment
  • FIG. 2 is a plan view of a modified embodiment.
  • Fig. 1 the weighing pan and the draft shield are shown in an exemplary embodiment in vertical section. It is always assumed in the description of a rotationally symmetric design. This is the simplest in terms of production engineering; However, with higher production outlay also oval or square / rectangular designs are possible.
  • the weighing pan 1 serves only in the working area 3 to the edge 2 as the actual weighing pan for receiving the weighing good. In this useful region 3, the weighing pan has the shape of an outwardly rising cone (hollow cone), wherein the cone tip is rounded in order to reduce the susceptibility to soiling.
  • the windscreen 4 continues with its inner surface 5, the conical surface of the weighing pan in approximately.
  • the angle of inclination of the cone relative to the horizontal in the example shown is about 30 °; favorable values are approximately between 10 ° and 40 °.
  • the surface in the working area 3 and the inner surface 5 of the windscreen are essential for the function of protection against air movements: they form at least approximately a common area interrupted only by the narrow gap 6. Then horizontal air currents (for example coming from the left) are guided somewhat laminarly along the sloping left inner surface 5 of the windscreen, along the useful area 3 of the weighing pan and then along the rising, inclined right inner surface 5 of the windscreen. As a result, turbulences hardly occur in the region of the weighing pan, so that jerky and statistically fluctuating vertical forces on the weighing pan are avoided.
  • a windshield support 8 can be seen, via which the windshield 4 is held on the housing 7
  • the balance pan 1 is supported on its underside 10 on a disc 11 from.
  • the disc 11 in turn is adjustably connected to the load receiver 9 of a (not shown) weighing system.
  • the adjustment can be done once in the vertical direction by the sleeve 13 is screwed at different depths on the load receiver 9.
  • the internal thread of the sleeve is designed to self-tapping and self-locking.
  • the adjustment can be done on the other hand in the lateral direction by the disc 11 is slid in loosened screw 12 in the correct position and then the screw 12 is tightened.
  • the inner end 14 of the windshield 4 is slightly higher than it corresponds to the extension of the surface of the working area 3 of the weighing pan, so that the weighing material slips over the gap 6 in any case.
  • the useful range of the weighing pan and the inner surface of the draft shield thus no longer form exactly a common area, but only approximately, but the inclination of the areas on both sides of the gap 6 is the same.
  • the weighing pan has a circumferential collar 15.
  • dust, abrasion of the sample or the like which may penetrate through the gap 6, collected and does not penetrate into the interior of the balance.
  • a collar on the top of the housing is possible (not shown).
  • An advantageous design of the gap 6 between the weighing pan and the draft shield can also be seen in FIG. 1: The gap initially extends radially outward in the horizontal direction, so that as little dust, abrasion from the weighing stock, etc., can enter the gap. Only after a certain gap length of the gap goes into the vertical.
  • the windshield 4 normally surrounds the weighing pan 1 over its entire circumference.
  • a modified embodiment is now shown in plan view, in which the windshield 4 ', the weighing pan 1 only partially surrounds.
  • the windscreen 4 'in this example comprises only a sector of 300 °.
  • the windshield carrier 8 surrounds the weighing pan 1 and, in FIG. 2, its inner edge 16 is recognized.
  • the weighing pan and draft shield are constructed in the same way as in the embodiment according to FIG. 1.
  • the vertical section in FIG So also vertical section along the dot-dash line A - A in Fig. 2. -
  • This modified embodiment of FIG. 2 is of course with respect to the protection against wind currents not as optimal as a 360 ° windbreak.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)

Abstract

Balance à plateau supérieur pourvue d'un plateau de pesée (1) destiné à recevoir la matière à peser et d'un dispositif de protection (4) contre le vent ouvert vers le haut et entourant le plateau de pesée (1). Selon la présente invention, la zone utile (3) du plateau de pesée (1) et la surface interne (5) du dispositif de protection (4) contre le vent forment au moins approximativement une surface commune s'élevant vers l'extérieur et le plateau de pesée (1) et le dispositif de protection (4) contre le vent ne sont séparés l'un de l'autre que par un interstice étroit (6). Cette conception aérodynamique combinée du plateau de pesée et du dispositif de protection contre le vent permet d'obtenir un bon effet protecteur contre les influences du vent.
PCT/EP2005/010159 2004-11-05 2005-09-21 Balance a plateau superieur pourvue d'un dispositif de protection conter le vent Ceased WO2006048079A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004053443.8 2004-11-05
DE200410053443 DE102004053443B3 (de) 2004-11-05 2004-11-05 Oberschalige Waage mit Windschutz

Publications (1)

Publication Number Publication Date
WO2006048079A1 true WO2006048079A1 (fr) 2006-05-11

Family

ID=35351701

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/010159 Ceased WO2006048079A1 (fr) 2004-11-05 2005-09-21 Balance a plateau superieur pourvue d'un dispositif de protection conter le vent

Country Status (2)

Country Link
DE (1) DE102004053443B3 (fr)
WO (1) WO2006048079A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20150569A1 (it) * 2015-04-21 2016-10-21 Ima Spa Apparato e metodo di pesatura per una linea di riempimento di contenitori di prodotti farmaceutici, medicali, alimentari o simili

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8104877U1 (de) * 1981-02-21 1982-06-16 Sartorius GmbH, 3400 Göttingen Oberschalige elektronische waage
JPS62179615A (ja) * 1986-02-04 1987-08-06 Ee & D:Kk 高分解能秤量装置
US4893686A (en) * 1988-06-21 1990-01-16 Mettler Instrumente Ag Draft protection device for precision balances

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8104877U1 (de) * 1981-02-21 1982-06-16 Sartorius GmbH, 3400 Göttingen Oberschalige elektronische waage
JPS62179615A (ja) * 1986-02-04 1987-08-06 Ee & D:Kk 高分解能秤量装置
US4893686A (en) * 1988-06-21 1990-01-16 Mettler Instrumente Ag Draft protection device for precision balances

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 025 (P - 659) 26 January 1988 (1988-01-26) *

Also Published As

Publication number Publication date
DE102004053443B3 (de) 2006-05-11

Similar Documents

Publication Publication Date Title
EP0366889B1 (fr) Colonne réglable pour sièges, tables ou similaire
AT507834A1 (de) Portionskapsel
EP0691159A1 (fr) Séparateur pour broyeurs
DE2356054A1 (de) Entlastungseinrichtung von schuettgutsilos
AT522675B1 (de) Schutzkissen für einen Reibkörper von einem Bremsbelag und Bremsbelag
EP0135807A2 (fr) Agencement pour la connexion d'un ressort à spirale avec le bras de suspension d'une roue de véhicule moteur
EP3541535B1 (fr) Séparateur à air et broyeur équipé de ce dernier
DE102006044833B4 (de) Zentrifugalsichter und Verfahren zum Sichten
DE1806527C3 (de) Flachdachablauf
EP3175066B1 (fr) Rouleau
WO2006048079A1 (fr) Balance a plateau superieur pourvue d'un dispositif de protection conter le vent
DE7308845U (de) Wasch- und/oder zentrifugale Abscheidungsmaschine
WO2016165679A1 (fr) Broyeur pour moulin à épices
DE2538431C2 (de) Auslaufwand für Rohrmühlen
DE3524065A1 (de) Schliesskopf zur befestigung einer flaschenkapsel auf einer flasche
DE1976039U (de) Kollergang, insbesondere fuer eine zerkleinerung harter materialien, insbesondere koksgrus.
EP0642900A1 (fr) Mélangeur monté sur véhicule pour mélanges aptes à couler comme du béton
DE69710448T2 (de) Ein mit einem Schutzbalg zusammen arbeitender Anschlagpuffer,insbesondere für Fahrzeugstossdämpfer
DE102013224073A1 (de) Befestigungssystem für kippbare metallurgische Behandlungsgefäße
DE19962134A1 (de) Vorrichtung zum Mahlen und Dispergieren von Suspensionen
DE2646771A1 (de) Kolbenanordnung fuer einen stossdaempfer
DE102009015037A1 (de) Wälzmühle
CH377245A (de) Bremse an einer Spinn- oder Zwirnspindel
DE19810664B4 (de) Radaufhängung
DE2947852A1 (de) Zerkleinerungsmaschine des muehlentyps

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase

Ref document number: 05796157

Country of ref document: EP

Kind code of ref document: A1