WO2007014403A1 - Pont-bascule - Google Patents

Pont-bascule Download PDF

Info

Publication number
WO2007014403A1
WO2007014403A1 PCT/ZA2006/000091 ZA2006000091W WO2007014403A1 WO 2007014403 A1 WO2007014403 A1 WO 2007014403A1 ZA 2006000091 W ZA2006000091 W ZA 2006000091W WO 2007014403 A1 WO2007014403 A1 WO 2007014403A1
Authority
WO
WIPO (PCT)
Prior art keywords
holder
weighbridge
bladder member
weighbridge according
bladder
Prior art date
Application number
PCT/ZA2006/000091
Other languages
English (en)
Other versions
WO2007014403A8 (fr
Inventor
Morne Inus Van Rooyen
Original Assignee
Morne Inus Van Rooyen
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 Morne Inus Van Rooyen filed Critical Morne Inus Van Rooyen
Publication of WO2007014403A1 publication Critical patent/WO2007014403A1/fr
Publication of WO2007014403A8 publication Critical patent/WO2007014403A8/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G5/00—Weighing apparatus wherein the balancing is effected by fluid action
    • G01G5/04—Weighing apparatus wherein the balancing is effected by fluid action with means for measuring the pressure imposed by the load on a liquid
    • G01G5/045—Weighing apparatus wherein the balancing is effected by fluid action with means for measuring the pressure imposed by the load on a liquid combined with means for totalising the pressure imposed by several load-cells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
    • G01G19/025—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles wheel-load scales

Definitions

  • This invention relates to a weighbridge and more specifically a transportable weighbridge which can be used to determine the weight of a loaded vehicle.
  • An overloaded vehicle can cause substantial damage to road infrastructure and presents a safety risk to occupants of the vehicle and fellow road users.
  • the aim of the invention is to provide a transportable weighbridge which may be used to determine the weight of a loaded vehicle.
  • the invention provides a weighbridge which is transportable and which includes at least a first bladder member, at least a first weighing surface engaged with the first bladder member, a conduit extending from the first bladder member, a pressure gauge connected to the conduit and a converter which is in communication with the pressure gauge.
  • the first bladder member may include a cavity.
  • the cavity may be formed between and included opposing bladder surfaces which are movable relatively to one another. Alternatively the cavity can be made from a sealed, fluid impervious material.
  • the first bladder member may be deformable and may be filled with a fluid which is preferably in the form of a liquid.
  • the liquid preferably has limited compressibility and can for example be in the form of brake fluid.
  • the weighing surface is in the form of a weighing plate which has an upper side with which a first wheel of a vehicle is engageable and an under side which abuts the bladder member.
  • the conduit may be elongate.
  • the pressure gauge may be in the form of a mechanical, electronic or hydraulic gauge.
  • the converter is preferably in the form of a pressure to weight converter.
  • the converter may be in the form of a mechanical display device or an electronic device.
  • the electronic device may include a central processing unit.
  • An input means in the form of a keyboard and a power supply may be connected to the central processing unit.
  • a memory storage device and an output means are connected to the central processing unit.
  • the output means may include a display and a printer.
  • the weighbridge may include a first holder with which the first bladder member and the first weighing surface are engaged.
  • the first holder may include a first recess wherein the first bladder member is located.
  • the first holder may include a sump plate and a wall which extends from and surrounds the sump plate.
  • the first holder may include a ramp formation which extends towards the first weighing surface.
  • the weighbridge preferably includes a second holder, which is identical to the first holder, with which a second bladder member, which is identical to the first bladder member, and a second weighing surface, which is identical to the first weighing surface, are engaged.
  • the second bladder member is preferably in communication with the conduit and the pressure gauge.
  • the invention also provides a weighbridge which is transportable and which includes a first holder, a first bladder member which is engaged with the first holder, a first weighing surface engaged with the first bladder member, a second holder which is spaced from the first holder, a second bladder member which is engaged with the second holder, a second weighing surface which is engaged with the second bladder member, a conduit which is in communication with the first and the second bladder members, a pressure gauge which is connected to the conduit and a converter which is in communication with the pressure gauge.
  • the converter is preferably in the form of a pressure to weight converter.
  • Figure 1 is a perspective view of a weighbridge according to the invention in use
  • Figure 2 is a sectioned side view of a first holder of the weighbridge of Figure 1 ;
  • Figure 3 is a schematic representation of a control box of the weighbridge of Figure 1 ;
  • Figure 4 is an enlarged sectioned side view of an alternative holder for use in the weighbridge of Figure 1.
  • Figure 1 shows a loaded vehicle 10 on a weighbridge 12 used to determine the weight of the vehicle 10.
  • the vehicle 10 has a horse 14 which tows a trailer 16.
  • the horse 14 has a set of front wheels 18 and a set of drive wheels 20 which are connected to a chassis 22 in a known manner.
  • the trailer 16 has a frame 24 which is pivotally linked to the horse 14.
  • a set of rear wheels 26 is connected to the frame 24 in a known manner and a load 28 is loaded on the frame 24.
  • the weighbridge 12 has a first holder 30 and a second holder 32 which are spaced apart and movable relatively to one another.
  • a first section 34 of a conduit 35 extends between the first holder 30 and the second holder 32.
  • a second section 36 of the conduit 35 extends from the second holder 32 to a control box 38.
  • the first holder 30 has a recess 40 formed between a sump plate 42 and a wall 44 which extends from the sump plate 42 and surrounds the sump plate 42.
  • a bladder 46 made from a sealed, fluid impervious material is located in the recess 40.
  • An upper plate 48 fits on top of the bladder 46.
  • the upper plate 48 has an upper weighing surface 50 and a lower abutment surface 52 which abuts against the bladder 46. In this manner the upper plate 48 is engaged with the bladder 46.
  • Guides 54 of any appropriate construction allow the upper plate 48 to be movable relatively to the sump plate 42.
  • a deformable cavity 49 is in this manner defined by the bladder 46 between the sump plate 42, the wall 44 and the upper plate 48.
  • the first section 34 is connected to the bladder 46 and the cavity 49 and extends therefrom.
  • the bladder 46 is filled with any appropriate fluid 58.
  • the fluid 58 can be in the form of a gas but is preferably in the form of a liquid with limited compressibility such as brake fluid.
  • the second holder 32 is identical in construction to the first holder 30 and although not described in detail herein the second holder 32 has a second recess 4OA, a second sump plate 42A, a second wall 44A 1 a second bladder 46A 1 a second upper plate 48A 1 a second weighing surface 5OA, a second lower surface 52A 1 second guides 54, and second ramps 56C, D.
  • the second bladder 46A is also filled with the fluid 58 and the first section 34 is connected to and in communication with the second bladder 46.
  • the second section 36 extends from the second bladder 46A.
  • the conduit 35 is elongate and as is illustrated in Figure 3 the second section 36 extends to a pressure gauge 60 which is situated in the control box 38.
  • the control box 38 has an external housing 62.
  • a central processing unit or converter 64 is located in the housing 62.
  • Input means 66 in the form of the pressure gauge 60 and a keyboard 68 are in communication with the converter 64.
  • a power supply 70, a memory storage means 72 and an output means 74 are connected to and in communication with the converter 64.
  • the gauge 60 is in any appropriate form and can for example be in the form of a mechanical, hydraulic or electronic gauge. Measurements taken by the gauge 60 are communicated to the converter 64.
  • the keyboard 68 is in any appropriate form and can have various input buttons or switches.
  • the keyboard 68 is used to program or manipulated data and measurements which are communicated to the converter 64 by the pressure gauge 60 and stored on the memory 72.
  • the power supply 70 can be of any appropriate kind and is for example in the form of a 12 volt power supply.
  • the memory 72 is in the form of a hard drive on which appropriate software and data are stored.
  • the output means 74 consists of a display 76 in the form of a computer screen and a printer device 78 of known construction.
  • the primary function of the converter 64 is to convert pressure measurements measured by the gauge 60 into weight measurements.
  • the converter 64 receives input from the gauge 60 and keyboard 68, manipulates information it receives, stores information on and retrieves information from the memory 72, displays information on the display 76 and prints information on the printer 78. [0032] The specific manipulation of the measurements received from the gauge 60 and information received from the keyboard 68 by the converter 64 depends on its programming.
  • the converter 64 can be in the form of a mechanical dial display which displays the measurements of the gauge 60 as a weight dimension on a scale.
  • first and second holders 30, 32 are aligned with the respective front wheels 18 and the vehicle 10 moves onto the holders 30, 32 by moving forward.
  • Each front wheel 18 rolls onto the weighing surface 50 of the respective holder 30, 32 by way of the rear ramps 56B, D.
  • the weight of the vehicle 10 on the front wheels 18 causes the upper plate 48 to move relatively to the sump plate 42 which results in compression of the bladder 46.
  • the bladder 46 is deformable and the pressure exerted on the fluid 58 in the bladders 46, 46A is conveyed through the conduit 35 to the gauge 60.
  • the gauge 60 measures the pressure exerted on the bladders 46A, B and the measurement is communicated to and recorded by the converter 64.
  • the measurements are stored on the memory 72.
  • Each of the first, second and third sets of data represent the actual weight on the respective front wheels 18, drive wheels 20 and rear wheels 26. Through the manipulation of these sets of data by way of appropriate programming the entire weight of the vehicle 10 can be calculated. In this manner it can be determined whether load
  • a printout of the weight can be effected which can be logged for future reference.
  • the weighing bridge 12 is transportable and can be collapsed. This allows a driver (not shown) of the vehicle 10 to confirm the load of the vehicle 10 without the need to drive to a fixed weighbridge or to risk that the vehicle is not correctly loaded.
  • the weighbridge 12 can be used for various vehicles with any number of axles and wheels as the measurement of the weight of such vehicles will depend on the programming of the control box 38.
  • Figure 4 illustrates an alternative holder 3OB. Similar reference numerals in respect of similar components described in respect of the first holder 30 are used for similar components in the holder 3OB and only the differences between the first holder 30 and the holder 3OB are described.
  • the holder 3OB has a cup-shaped upper plate 48B which fits snugly over the wall 44B.
  • a seal 80 in the form of an o-ring is located between the wall 44B and the upper plate 48B.
  • a cavity 49B is formed between the sump plate 42B, wall 44B and upper plate 48B.
  • the cavity 49B is deformable as the upper plate 48B is movable relatively to the sump plate 42B and wall 44B.
  • the conduit 35 is in direct communication with the cavity 49B and the cavity 49B is filled with the fluid 58.
  • each of the guides 54 is in the form of a sleeve and pin combination 84.
  • Each combination 84 has an elongate fastener or pin 86 with an enlarged head 88 which extends from the sump ' plate 42B and an elongate sleeve 90 formed in the upper plate 48B wherein the head 88 is located.
  • the sleeve 90 is movable relatively to the pin 86 and head 88 but the head 88 catches on an end stop 92 on the sleeve 90 to prevent the sleeve 90 from disengaging from the pin 86.
  • the cavity 49B does not have a sealed, fluid impervious material used for the bladder 46 which forms the cavity 49 as the cavity 49B is defined by opposing bladder surfaces of the sump plate 42B, wall 44B and upper plate 48B.
  • the holder 3OB functions in all respects in the same manner as the holders 30, 32.
  • control box 38 can be integrally formed on the first or the second holder 30, 32.
  • Each of the first and second holders 30, 32 can also have its own control box 38 which is in communication with the respective bladder 46 by way of the conduit 35.
  • the first and second holders 30, 32 are separated and each of the respective control boxes 38 has an appropriate transmitter and receiver device to allow infrared, radio, microwave, etc. communication between the two coniro ⁇ boxes 38.
  • the respective weight measured on each holder 30, 32 is communicated between the respective control boxes 38 and the weight of the vehicle 10 is calculated in the manner described.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Handcart (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Pont-bascule (12) qui est transportable et qui comprend un premier support (30), un premier élément de vessie (46) qui est engagé avec le premier support, une première surface de pesage (50) qui est engagée avec le premier élément de vessie, un second support (32) qui est espacé du premier support, un second élément de vessie (46A) qui est engagé avec le second support, une seconde surface de pesage (50A) qui est engagée avec le second élément de vessie, une conduite (35) qui est en communication avec les premier et second éléments de vessie, une jauge de pression (60) qui est connectée à la conduite et un convertisseur (64) qui est en communication avec la jauge de pression.
PCT/ZA2006/000091 2005-07-24 2006-07-24 Pont-bascule WO2007014403A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200500647 2005-07-24
ZA2005/0647 2005-07-24

Publications (2)

Publication Number Publication Date
WO2007014403A1 true WO2007014403A1 (fr) 2007-02-01
WO2007014403A8 WO2007014403A8 (fr) 2007-08-16

Family

ID=37037071

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2006/000091 WO2007014403A1 (fr) 2005-07-24 2006-07-24 Pont-bascule

Country Status (1)

Country Link
WO (1) WO2007014403A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102012256A (zh) * 2010-09-10 2011-04-13 李新桥 一种液压静力压桩机称重装置
CN105928599A (zh) * 2016-04-22 2016-09-07 安徽皖通科技股份有限公司 一种防止高速公路称重收费误差的方法
WO2020229497A1 (fr) * 2019-05-12 2020-11-19 Berg Design Limited Système de mesure de poids

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1458920A (en) * 1919-10-25 1923-06-12 Loadometer Company Road-bearing meter
DE440258C (de) * 1924-11-28 1927-02-03 Losenhausenwerk Duesseldorfer Vereinigung von Kraftaufnahmedosen
US2857152A (en) * 1952-08-11 1958-10-21 Irving E Aske Hydraulic scale with flexible tubes
US2886301A (en) * 1954-09-24 1959-05-12 Irving E Aske Hydraulic weighing scale
FR1535073A (fr) * 1966-08-15 1968-08-02 Brown Ltd S G Dispositif pour additionner les sorties de cellules de charges hydrostatiques
FR2405475A1 (fr) * 1977-10-04 1979-05-04 Moniot Philippe Appareil pour controler la charge d'essieux de vehicules

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1458920A (en) * 1919-10-25 1923-06-12 Loadometer Company Road-bearing meter
DE440258C (de) * 1924-11-28 1927-02-03 Losenhausenwerk Duesseldorfer Vereinigung von Kraftaufnahmedosen
US2857152A (en) * 1952-08-11 1958-10-21 Irving E Aske Hydraulic scale with flexible tubes
US2886301A (en) * 1954-09-24 1959-05-12 Irving E Aske Hydraulic weighing scale
FR1535073A (fr) * 1966-08-15 1968-08-02 Brown Ltd S G Dispositif pour additionner les sorties de cellules de charges hydrostatiques
FR2405475A1 (fr) * 1977-10-04 1979-05-04 Moniot Philippe Appareil pour controler la charge d'essieux de vehicules

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102012256A (zh) * 2010-09-10 2011-04-13 李新桥 一种液压静力压桩机称重装置
CN105928599A (zh) * 2016-04-22 2016-09-07 安徽皖通科技股份有限公司 一种防止高速公路称重收费误差的方法
WO2020229497A1 (fr) * 2019-05-12 2020-11-19 Berg Design Limited Système de mesure de poids
GB2599530A (en) * 2019-05-12 2022-04-06 Berg Design Ltd Weight measuring system
GB2599530B (en) * 2019-05-12 2023-02-08 Berg Design Ltd Weight measuring system

Also Published As

Publication number Publication date
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