EP0179111B1 - Tragwagen für fahrzeug oder material - Google Patents

Tragwagen für fahrzeug oder material Download PDF

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Publication number
EP0179111B1
EP0179111B1 EP85902045A EP85902045A EP0179111B1 EP 0179111 B1 EP0179111 B1 EP 0179111B1 EP 85902045 A EP85902045 A EP 85902045A EP 85902045 A EP85902045 A EP 85902045A EP 0179111 B1 EP0179111 B1 EP 0179111B1
Authority
EP
European Patent Office
Prior art keywords
concentrate
liquid
pressure
product
conduit
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.)
Expired
Application number
EP85902045A
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English (en)
French (fr)
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EP0179111A1 (de
Inventor
Pierre Roux
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT85902045T priority Critical patent/ATE36692T1/de
Publication of EP0179111A1 publication Critical patent/EP0179111A1/de
Application granted granted Critical
Publication of EP0179111B1 publication Critical patent/EP0179111B1/de
Expired legal-status Critical Current

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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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts

Definitions

  • the present invention relates to a device for dispensing liquids such as food liquids and in particular refrigerated or non-refrigerated drinks, in which a concentrated liquid is diluted using a diluent liquid, in particular water.
  • the invention applies in particular to the distribution of refrigerated drinks from concentrates, such as for example drinks prepared from natural concentrates of fruit juices, for example oranges, with or without pulp, crushed or unground.
  • the devices or apparatuses of this type currently known are intended to ensure the automatic dilution of a concentrated liquid product, viscous or not, with or without pulp, in water, generally cooled water and, in general, to deliver doses of the product thus diluted, for example to the glass or to the cup.
  • U.S. Patent 2,920,579 describes a device in which the fruit concentrate is brought directly into the axis of a venturi by an adjustable injector 44 opening into a venturi nozzle. It is clear that such a device has been provided to try to adjust, by axial displacements at the level of the venturi, and this in an extremely fine manner, the flow of concentrate. This implies that the depression caused is not substantially constant and varies, in particular depending on the level of concentrate in the refrigerated concentrate container 16.
  • this device is complex and comprises a complicated venturi made up of several assemblable parts, namely , in particular, the central injector, the part forming a nozzle and distribution duct, a water inlet, a blocking part 49 as well as seals and blocking means.
  • the throttling of the venturi is provided to prevent the entry of air from the opening 21 into the injector, which means that the duct 20 receives air through its mouth and that , in this conduit, the liquid is not protected from air and therefore from fermentation.
  • French patent 1 392840 describes a device in which there is air inside the pressure-reducing member before the start of operation. The presence of this air prevents the establishment of a constant depression and therefore the obtaining of a good homogeneity. Such a device is particularly sensitive to differences in level in the reservoir of the product which must be diluted.
  • the depressor organ is oriented vertically, which prevents it from retaining the liquid inside. A fortiori, the vertical evacuation duct is exposed to air between two operations with all the resulting drawbacks in terms of hygiene. Finally, the device is also very complicated, has a large number of complex parts and seals and requires delicate adjustments.
  • German patent 3,234,957 describes a device for dispensing diluted syrup in which part of the device remains filled with concentrated syrup between two successive dispensing operations. This quantity of concentrated syrup is simply expelled when the water arrives and is therefore not diluted, thus causing a lack of homogeneity in the receiving cup. On the other hand, part of the device remains empty between two successive dispensing operations, except for traces of diluted syrup which therefore remain in contact with the air, which promotes oxidation and bacterial proliferation.
  • the present invention proposes to remedy these drawbacks and to provide a device for dispensing liquids such as food liquids and especially beverages, making it possible to dilute, to a given concentration and with great precision, a liquid concentrate which can be either viscous or non-viscous, with or without crushed pulp or not and, if necessary, to deliver the diluted product in exact doses, and this using simple means, inexpensive and little subject to breakdowns.
  • Another objective of the invention is thus to make it possible to obtain an extremely homogeneous diluted product.
  • Another objective of the invention is to deliver, at a temperature recommended for consumption, the liquid food whatever the frequency of use.
  • Another object of the invention is to make it possible to reconstitute the organoleptic properties of a freshly squeezed fruit juice from a frozen natural concentrate of fruit juice.
  • Another objective of the invention is to provide a device which does not use complex mechanical means in contact with the concentrate or the diluent liquid.
  • Another objective of the invention is to avoid or considerably limit the phenomena of oxidation or fermentation of the liquids contained and thus to preserve the organoleptic properties of the food liquid delivered, and this in particular for products very sensitive to oxidation and fermentation.
  • Yet another object of the invention is to provide a device which is extremely cleaning easy and easy, allowing rapid disassembly.
  • Yet another objective of the invention is, in the frequent case where the diluent liquid is drinking water, to use the pressure of the drinking water network which supplies the appliance, as a source of energy.
  • the subject of the invention is a device comprising a source of diluent liquid, in particular the drinking water network regulated by a regulator, a source of concentrated product, a depressogenic organ of simple form for diluting the concentrated product in the diluent liquid, and in which the liquid concentrate is brought in via a calibrated passage connected by a conduit to the source of concentrated product to cause a suction effect of the concentrated liquid as a function of a constant depression such as the suction flow rate of concentrate is not significantly sensitive to variations in the level of the concentrate container, and a pipe downstream of the pressure-reducing member, liquid being liable to remain in the pressure-reducing member between two successive dispensing operations, characterized in that the member downstream continues directly downstream through a small internal volume conduit sufficiently elongated to form a homogenization conduit and in that the s internal dimensions of the pipe downstream of the pressure-reducing device are arranged so that the diluted liquid product remains in almost all of the internal volume of the pressure-reducing device and of the pipe, between two successive dispensing operations.
  • the liquid concentrate is supplied with the liquid concentrate by the simple suction effect of the pressure generator or, optionally, by additionally using the gravity of the concentrated liquid.
  • the pressure-reducing member continues with a distribution pipe which may possibly facilitate or improve the homogenization of the product to be distributed, and advantageously, the liquid product is maintained between said successive distribution operations in said pipe. by preventing any entry of air, and preferably by keeping the volume of the pipe at a very low value compared to the volume of the doses which can be dispensed.
  • this ratio can be between 0.5 and 2% of the dose volume, the latter being able to range up to 20 cl and more.
  • the maintenance of the liquid product in said pipe can be carried out preferably by simple effect of the surface tensions, for example by capillarity, and / or by the geometrical arrangement of the pipe but one can also use other means, in particular gravity, l '' use of check valves, especially on the concentrate etc ...
  • said pipe can be made up of, or comprise directly downstream of the pressure-reducing member, a homogenization pipe preferably of small diameter with a length / diameter ratio preferably greater than 10.
  • the diluent liquid is potable water
  • the method according to the invention makes it possible to obtain a diluent / concentrated volume ratio of between 2 and 100 and more.
  • the flow rates and passage sections are preferably designed so as to allow a flow speed of the diluted product of the order of 2 to 6 m / s.
  • the pressure-reducing element can consist of a simple chamber supplied with diluent liquid via a calibrated nozzle to create in the chamber a stable depression sufficient to suck the concentrate at a stable flow rate.
  • the pressure-reducing member continues, in the axis of the nozzle or of the flow of diluent liquid, by a conduit of small internal volume and preferably of short length through which the final product is distributed, conduit terminating in preferably a spout.
  • This duct can advantageously be a duct having a length / diameter ratio greater than 10.
  • the source of concentrated product is located under the pressure-reducing member and the tubing then plunges into the source of concentrated liquid which is gradually drawn in, anti-reflux means such as for example a ball valve, being arranged in the tubing, for example at the level of the pressure-reducing organ or, better, at the lower end of the tubing immersed in the source of liquid concentrate.
  • anti-reflux means such as for example a ball valve
  • the source of concentrated product which can then consist of a simple container, can be, if desired, suitably refrigerated and it is advantageous to use these refrigeration means to cool the flow of diluent liquid.
  • the distribution conduit can act as a homogenization conduit and is preferably designed in such a way that at the end of the distribution, it remains filled with liquid, as well as, if necessary, the spout which the extension, the internal volume of these elements retaining the liquid preferably by capillary action, although other means may be provided such as a valve, inclination of the conduit allowing the liquid to be maintained by gravity, etc.
  • the entire device according to the invention is therefore always filled with liquid, which opposes the penetration of air and considerably avoids or reduces the phenomena of oxidation and / or fermentation.
  • the material or materials in contact with the final product, the diluent liquid and the concentrated liquid are preferably opaque and produced with an excellent surface condition.
  • the adjustment and / or adaptation of the concentration of the final product can be carried out by acting on the flow rate of the diluent liquid in the pressure-reducing element, but preferably this adjustment is carried out using interchangeable pressure-reducing elements of suitable dimensions or, in a same pressure-reducing organ, using calibrated nozzles and / or calibrated passages of different diameters to introduce the diluent liquid and / or the concentrate.
  • FIG. 1 represents a schematic view, in sagittal section, of a device according to the invention
  • FIG. 2 represents, on an enlarged scale, the pressure-reducing member and the distribution duct with the pouring spout.
  • a device for dispensing doses of orange juice from frozen concentrate comprises, in a suitable camber 1 covered by a cover 2 having a cantilevered part 2a, a heat-insulated enclosure 3 inside which is arranged a cooling means such as a coil (not shown) allowing to maintain a temperature of 2 to 4 ° C.
  • a cooling means such as a coil (not shown) allowing to maintain a temperature of 2 to 4 ° C.
  • a container 4 containing the concentrate of frozen orange juice which, after a certain time, gets to the temperature prevailing in the enclosure 3.
  • a metal or plastic part 6 of generally parallelepiped shape and whose shape is best seen in FIG. 2.
  • This part comprises a pressure-reducing chamber 7 opening onto one of the faces of the part 6 and continuing horizontally by a long passage of small diameter 8 opening itself into a passage of larger diameter 9 this time arranged vertically and continuing, towards the lower face of the part 6, by an enlargement 10 intended to receive and maintain the upper end of a vertical tube 11 forming the pouring spout.
  • an injection nozzle 16 containing a calibrated orifice 17 in the axis of the chamber and of the conduit 8 is in place, at a location such that the useful volume of the chamber 7 disposed between the nozzle and the conduit 8 has an axial length of 4 mm, without taking account of the conical end of the chamber 7.
  • the chamber 7 is connected to a pipe 18 of which only the initial part is shown on the Figure 1.
  • a solenoid valve 19 is mounted on the pipe 18 and is controlled by a press button (not shown) or another control device, to open the passage for the determined period which, taking into account the characteristic dimensions of the apparatus, makes it possible to deliver a very precise dose of product and in this case of orange juice ready for consumption, for example in cups.
  • the solenoid valve 9 can be replaced anywhere other control means, timed or not.
  • the device thus produced is extremely simple and has no moving parts. All of these elements can be formed interchangeably and the various passages and pipes of the part 6 are devoid of blind spots and have a smooth internal wall of good quality. These different parts, namely part 6 with the spout 11, preferably not removable, the conduit 14 and the injection nozzle 16 can be very easily dismantled and cleaned and this daily.
  • the concentration of the dispensed dose is adjusted by each time using a nozzle 16 having an appropriate orifice diameter 17 and by placing this nozzle in place in chamber 7.
  • the conduit 14 being filled with concentrate, the solenoid valve 19 is opened.
  • the water jet which is established in the pressure-reducing member in the chamber 7 immediately draws a determined flow of concentrate which mixes in the chamber and continues to s 'homogenize in the homogenization duct 8, the liquid product then leaving through the spout 11 being completely homogeneous and of constant concentration and this until the solenoid valve is stopped.
  • the solenoid valve is stopped, due to the dimensions, in particular the diameter, of the conduit 8, it remains filled with liquid. It is the same for the pouring spout 11 which has only a reduced diameter. It is further noted that no drop forms at the end of the pouring spout 11 so that "dirt on the base of the device is avoided.
  • the doses distributed have a consistency of concentration sufficient to be completely imperceptible to the taste and to be in harmony with the regulations in force, and this thanks to the presence of the calibrated orifice 13 whose pressure drop is high compared to the variation in the level of concentrate.
  • the viscosity of the concentrate is 290 centipoise at 4 ° C and 310 centipoise at 2 ° C.
  • the temperature of the concentrate varied from 2 to 4 ° C during the test.
  • a nozzle 16 was used having an orifice diameter 17 of 1.9 mm and the pressure of the water upstream from the nozzle was reduced to 0.8 kg / cm 2 effective. During all the tests, a fruit juice having a BRIX degree of 10.1 ⁇ 2% was obtained, while the relative variation in the level of concentrate in container 4 was 15 cm. This variation in BRIX degree cannot be detected by taste.
  • the viscosity of the concentrate is 445 centipoise at 5.5 ° C and 475 centipoise at 3.5 ° C.
  • the suction duct is modified in that the ball valve has a diameter of 5.5 mm instead of 8 mm and in that the orifice of the seat of the ball has been brought back at 3 mm.
  • the nozzle has an orifice diameter 17 of 2 mm, the water pressure being 0.850 kg / cm 2 .
  • the temperature of the concentrate was maintained between 3 and 4.5 ° C.
  • the fruit juice reconstituted by the process according to the invention has a BRIX degree of 10.6 ⁇ : 3%.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Handcart (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Claims (9)

1. konzentrierte Flüssigkeit mittels einer kalibrierten Offnung (13) einleitet, die über eine Leitung (14) mit der Quelle für konzentriertes Produkt verbunden ist, um einen Ansaugeffekt an der konzentrierten Flüssigkeit in Abhängigkeit von einem konstanten Unterdruck hervorzurufen, sodaß die angesaugte Menge des Konzentrats im wesentlichen unabhängig von Niveauschwankungen im Konzentratbehälter ist, und mit einem Leitungssystem (8, 11) stromabwärts von dem Unterdruck erzeugenden Organ, wobei Flüssigkeit in dem Unterdruck erzeugenden Organ zwischen zwei aufeinanderfolgenden Abgabevorgängen verbleiben kann, dadurch gekennzeichnet, daß das Unterdruck erzeugende Organ sich stromabwärts direkt durch eine Leitung (8) kleinen Innenvolumens fortsetzt, die ausreichend lang ist, um eine Homogenisierungsleitung zu bilden, und daß die Innenabmessungen des Leitungssystems (8, 11) stromabwärts von dem Unterdruck erzeugenden Organ so gestaltet sind, daß das verdünnte flüssige Produkt in der Quasi-Gesamtheit des Innenvolumens des Unterdruck erzeugenden Organs und des Leitungssystems zwischen zwei aufeinanderfolgenden Abgabevorgängen verbleibt.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die genannte Leitung (14) eine Verengung (15) in Höhe der Quelle (14) für das konzentrierte Produkt besitzt.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Durchmesser der Verengung (15) kleiner oder gleich dem Durchmesser der kalibrierten Öffnung (13) ist.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Verhältnis des Volumens des Leitungssystems (8, 11) stromabwärts des Unterdruck erzeugenden Organs zum Volumen der Dosen zwischen 0,5 % und 2 % liegt.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, gekennzeichnet durch eine Ausströmgeschwindigkeit des verdünnten Produkts in der Größenordnung zwischen 2 und 6 m/s.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Verhältnis Länge/Durchmesser der Homogenisierungsleitung (8) größer als 10 ist.
7. Vorrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß das Unterdruck erzeugende Organ (6) am oberen Ende der Leitung (14) angeordnet ist, die mit der Verengung (15) versehen ist, oberhalb des Behälters (4), der das Konzentrat enthält.
8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Unterdruck erzeugende Organ von einer einfachen zylindrischen Kammer (7) gebildet ist, die mit Verdünnungsflüssigkeit durch eine austauschbare kalibrierte Düse (16) und mit konzentrierter Flüssigkeit durch die genannte kalibrierte Öffnung (13), die quer angeordnet ist, versorgt ist.
9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Unterdruck erzeugende Organ und die Homogenisierungsleitung (8) in einem einzigen Bauteil ausgebildet sind, das enthält : eine Kammer, die das Unterdruckorgan bildet und dazu eingerichtet ist, eine austauschbare Düse (16) aufzunehmen, sowie eine zweite Kammer-mit querlaufender Achse, die durch eine Öffnung (13) in den vorderen Abschnitt der Unterdruck erzeugenden Kammer (7) mündet, um das obere Ende einer austauschbaren Leitung (14) aufzunehmen, die von der Quelle (4) für konzentriertes Produkt herführt.
EP85902045A 1984-04-13 1985-04-12 Tragwagen für fahrzeug oder material Expired EP0179111B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85902045T ATE36692T1 (de) 1984-04-13 1985-04-12 Tragwagen fuer fahrzeug oder material.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8406088A FR2562853B1 (fr) 1984-04-13 1984-04-13 Chariot support de vehicule ou de materiel
FR8406088 1984-04-13

Publications (2)

Publication Number Publication Date
EP0179111A1 EP0179111A1 (de) 1986-04-30
EP0179111B1 true EP0179111B1 (de) 1988-08-24

Family

ID=9303244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85902045A Expired EP0179111B1 (de) 1984-04-13 1985-04-12 Tragwagen für fahrzeug oder material

Country Status (12)

Country Link
US (1) US4674726A (de)
EP (1) EP0179111B1 (de)
AU (1) AU4218585A (de)
CA (1) CA1249581A (de)
DE (1) DE3564556D1 (de)
DK (1) DK158641C (de)
ES (1) ES8607133A1 (de)
FI (1) FI79512C (de)
FR (1) FR2562853B1 (de)
NO (1) NO855014L (de)
WO (1) WO1985004644A1 (de)
ZA (1) ZA852690B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4889357A (en) * 1988-05-31 1989-12-26 Perry John C Parking stand for supporting the tongue of a parked trailer
US4934720A (en) * 1989-01-09 1990-06-19 Dobron Frank J Mobile cart having adjustable supports
JP2539089Y2 (ja) * 1993-08-28 1997-06-18 小野谷機工株式会社 車両用移動式ジャッキ
JP2526787Y2 (ja) * 1993-10-25 1997-02-19 小野谷機工株式会社 車両用移動式ジャッキ
US20060192060A1 (en) * 2005-02-25 2006-08-31 Scott Opsahl Car dolly apparatus and method
US7300063B1 (en) 2005-03-28 2007-11-27 Ivo Prizmich Vehicle dolly to enable the rolling transportation of a damaged vehicle
EP2133499B1 (de) * 2008-06-12 2012-08-15 Fratelli Comunello S.p.A. Wagen für freitragendes Schiebetor und Herstellungsverfahren dafür
CN111003669A (zh) * 2020-01-15 2020-04-14 余姚菲戈自动化技术有限公司 一种可以在刷墙过程中自动移动的升降梯
US11851098B2 (en) * 2020-10-29 2023-12-26 Bosch Automotive Service Solutions Inc. Vehicle battery service cart with configurable frame

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US1304680A (en) * 1919-05-27 Portable lifting device and carrier for automobiles
US1341621A (en) * 1919-07-23 1920-05-25 William W Leister Automobile-lifter
US1478307A (en) * 1922-04-06 1923-12-18 Baldwin Locomotive Works Jack structure
GB521924A (en) * 1937-11-29 1940-06-04 Frederic Meron Improvements in platform elevators
US2637522A (en) * 1948-08-19 1953-05-05 Walco Inc Vehicle hoisting apparatus
US2608313A (en) * 1950-12-18 1952-08-26 Manufacturers And Traders Trus Four-wheeled dolly for transporting tractor units
DE861459C (de) * 1951-04-14 1953-01-05 J A Becker & Soehne Hebebuehne fuer Kraftwagen
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US3504889A (en) * 1968-03-18 1970-04-07 Midland Ross Corp Portable vehicle lift
US3690608A (en) * 1970-07-07 1972-09-12 Newark Tool & Machine Ltd Adjustable stand
BE790935A (fr) * 1971-11-03 1973-03-01 F A V S A R L Banc mobile soulevable a partir du pont elevateur pour les reparations et controles des caisses de vehicules automobiles
US3982768A (en) * 1972-10-10 1976-09-28 Alvin Dean Getman Dolly
DE2250654A1 (de) * 1972-10-16 1974-04-25 Martin Steur Hebevorrichtung zum handhaben von lasten
US4177978A (en) * 1978-04-03 1979-12-11 Warsaw Arthur J Universal shop stand with breakdown feature
US4491305A (en) * 1981-01-05 1985-01-01 Walters Charles J Automobile dolly
US4383681A (en) * 1981-01-05 1983-05-17 Walters Charles J Automobile dolly
DE3116531A1 (de) * 1981-04-25 1982-11-25 Lauer, Gerhard, 6686 Eppelborn "hubwagen fuer eine montage an einer fertigungslinie"
FR2509710B1 (fr) * 1981-07-16 1985-09-27 Woinnetin Claude Elevateur mobile a cales orientables
JPS5889443A (ja) * 1981-11-25 1983-05-27 Jidosha Seiki Kogyo Kk 自動車の車体移動台車

Non-Patent Citations (1)

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Title
Patents Abstracts of Japan, vol.7, no.189 (M-237)1334; 18 August 1983 *

Also Published As

Publication number Publication date
AU4218585A (en) 1985-11-01
ES8607133A1 (es) 1986-05-16
FR2562853A1 (fr) 1985-10-18
FI854794A0 (fi) 1985-12-04
WO1985004644A1 (fr) 1985-10-24
NO855014L (no) 1985-12-12
DK575885D0 (da) 1985-12-12
ES542183A0 (es) 1986-05-16
FI79512B (fi) 1989-09-29
CA1249581A (fr) 1989-01-31
US4674726A (en) 1987-06-23
FI79512C (fi) 1990-01-10
DK575885A (da) 1985-12-12
FR2562853B1 (fr) 1988-04-22
DK158641C (da) 1990-11-26
EP0179111A1 (de) 1986-04-30
FI854794A (fi) 1985-12-04
ZA852690B (en) 1985-11-27
DK158641B (da) 1990-06-25
DE3564556D1 (en) 1988-09-29

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