EP1068832A2 - Mécanisme de levage - Google Patents

Mécanisme de levage Download PDF

Info

Publication number
EP1068832A2
EP1068832A2 EP00111990A EP00111990A EP1068832A2 EP 1068832 A2 EP1068832 A2 EP 1068832A2 EP 00111990 A EP00111990 A EP 00111990A EP 00111990 A EP00111990 A EP 00111990A EP 1068832 A2 EP1068832 A2 EP 1068832A2
Authority
EP
European Patent Office
Prior art keywords
lever
spring
lifting mechanism
shaft
mechanism according
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
EP00111990A
Other languages
German (de)
English (en)
Other versions
EP1068832A3 (fr
EP1068832B1 (fr
Inventor
Michael Baumann
Hans Peter Hager
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.)
Winterhalter Gastronom GmbH
Original Assignee
Winterhalter Gastronom GmbH
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 Winterhalter Gastronom GmbH filed Critical Winterhalter Gastronom GmbH
Publication of EP1068832A2 publication Critical patent/EP1068832A2/fr
Publication of EP1068832A3 publication Critical patent/EP1068832A3/fr
Application granted granted Critical
Publication of EP1068832B1 publication Critical patent/EP1068832B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0076—Washing or rinsing machines for crockery or tableware of non-domestic use type, e.g. commercial dishwashers for bars, hotels, restaurants, canteens or hospitals
    • A47L15/0081—Washing or rinsing machines for crockery or tableware of non-domestic use type, e.g. commercial dishwashers for bars, hotels, restaurants, canteens or hospitals with vertical sliding closing doors, e.g. hood-type dishwashers

Definitions

  • the invention relates to a spring-assisted Lifting mechanism according to the preamble of claim 1.
  • the spring-assisted lifting mechanism is used on dishwashers for the catering trade the slight lifting of the washroom covering covering agent.
  • the spring-assisted The lifting mechanism is designed to move the Covering agent between a lower and an upper one Effect position, with the cover in the lower Position by your own weight and that in the upper one Position is held by a spring force.
  • a known spring-assisted lifting mechanism for one Covering agents for a catering dishwasher consist of two levers mounted on a shaft, the covering means on first lever is rotatably and slidably mounted and wherein a tension spring engages at the end of the second lever.
  • the wave, on which the levers are mounted is firmly on the frame of the Dishwasher stored.
  • the spring applied a moment to the shaft. Because of this The moment is a rotation of the shaft or the first lever causes or supports so that an opening movement of the Covering agent is facilitated.
  • a vertical movement to ensure the cover is secure the cover is open the back in one on the frame of the dishwasher attached guide led.
  • this lifting mechanism has significant disadvantages on. So there is a high force to open the cover required because in this position of the lifting mechanism Spring only with a small effective lever length on the shaft attacks. With the increasing opening of the cover the effective lever length increases, so that the on The lifting force acting as a covering means is becoming ever greater. With this The operator initially feels a high opening process Resistance because the opening movement only minimally supports becomes. Because the operator, the force he applies, dosed according to the required opening force the masking agent often goes up at high speed move against a stop. This is because the force to be applied by the operator due to the improving lever arm between the spring and the shaft with increasing degree of opening decreases. Even when closing the Covering agents lead to the properties of the mechanics undesired, unfavorable force development.
  • the invention has for its object a to develop spring assisted lifting mechanism which in All positions of the cover means a relief moment Provides that to the needs of the operator is coordinated, and thus the precise and sensitive operation the cover means allowed with a small hand force.
  • the spring-assisted lifting mechanism according to the invention for the covering means consists of a control means which between the second lever and the tension spring is arranged and that an approximately constant effective lever between one Articulation point of the spring and the shaft over an angle of rotation of the Causes wave of up to about 100 degrees. This will achieved that the opening movement of the cover means of an almost constant force is supported, so that neither when lifting or lowering the cover means one for the Operator surprising power development arises.
  • Control means designed as an intermediate lever with the second lever and the tension spring is connected.
  • this will this temporarily held freely between the articulation points and is temporarily rotatable and movable on a counter bearing on.
  • control means as a triangular leveling lever or to design knee levers.
  • Such an embodiment of the Control means allows the shaft to be used as a counter bearing use and thus the construction is particularly simple shape.
  • control means as in two sets trained bolt to which the spring is attached is.
  • the scenes are through an elongated hole in the second lever and formed a fixed guide. That way it is also possible to have a constant torque on the Provide shaft as the effective lever remains constant.
  • the second lever has a cam-shaped head, about the end of which runs a rope or ribbon, on the free end of the spring is attached. If the front of the Cam is designed so that it is in a circle around the Wave lies, then can also here with the help of the spring even moment can be applied to the shaft.
  • the dishwasher 1 is a schematic of a dishwasher 1 Side view shown.
  • the dishwasher 1 consists of a base 2 with feet 3 and one on the base 2 attached side part 4.
  • the dishwasher 1 a covering means 4a, which is designed as a hood 5, which has a handle 6.
  • the lever 9 connects the shaft 8 with one attached to the hood 5 rotatable bearing pin 11.
  • the lever 9 is in a guide 13 the shaft 12 slidably mounted. When opening the hood 5 the lever 9 slides with an area 14 in the guide 13 of the bearing pin 11 back and forth (see in comparison Fig. 3rd and Fig. 5).
  • the vertical movement of the hood 5 is by a vertical guide, not shown, between the Hood and the side part is ensured.
  • the lever 10 on one Articulation point 15 is rotatably connected to a control means 16 is.
  • the control means 16 is a compensating lever 16a or Triangle lever 17 configured, the one base 18, one Has adjacent 19 and a countercathete 20.
  • On one Another pivot point 21 of the triangular lever 17 is a spring 22 hung, which has a longitudinal axis 22a.
  • the spring 22 is designed as a tension spring 23 and is in the side part 4 of the Dishwasher 1 counter-mounted (see Fig. 1).
  • the wave 8 has a surface 24 on which the triangular lever 17 with the adjacent 19 is present.
  • the spring 22, the triangle lever 17, the lever 10, the bearing 7 and the lever 9 form one Lifting mechanism 25.
  • the lifting mechanism 25 causes one Assisting an operator in opening and closing the Hood 5 or holding the hood 5 in the open position. the operator must open the weight 26 (see Fig. 1) of the hood 5 by the applied by him Pick up hand force 27 (see Fig. 1), doing this by the spring force 28 (see FIG. 1) of the spring 22 supports becomes.
  • the weight 26 acts the hood 5 with a lever H1 on the bearing 7. Die
  • the counterforce to the weight 26 is by the hand force 27 and the spring force 28 applied.
  • the triangular lever 17 with a recess on the triangular lever 17 designed articulation bay on the Surface 24 of the shaft 8 abuts. In this way the Triangle lever 17 surface contact with the shaft 8.
  • the lever mechanism 25 between the closed position 29 and the half-open position 30 a sinusoidal decrease in the effective lever arm length, with the spring 22 acts on the shaft 8.
  • the lifting mechanism 25 causes a sinusoidal rise the effective lever arm length with which the spring 22 on the Wave 8 works.
  • the spring 22 acts with a decreasing spring tension removable force on the lever mechanism 25.
  • the middle position and the open position of the hood 5 takes this on the shaft 8 acting moment again slightly.
  • lifting mechanism 25 shows a variant of the lifting mechanism 25 in schematic representation.
  • lifting mechanism 25 has the in 7 also shows a first lifting mechanism 40 Lever 9, a second lever 10, a bearing 7 and a shaft 8 on.
  • the dishwasher 1 was not shown, since the lifting mechanism 40 shown in Fig. 7 also for the dishwasher 1 shown in FIGS. 1, 3 and 6 is provided.
  • the second lever 10 has a guide 41 Elongated hole 42 in which a bolt 43 is slidably mounted is.
  • a tension spring in a pivot point 43a 44 fastens the bolt 43 in the direction of arrow 45 pulls and in the side part 4 (not shown here) is opposed.
  • the bolt 43 is in a Side part 4 executed guide 46 in the vertical direction slidably mounted.
  • the guide 46 to execute in a curve. In this way, the course of the moment acting on the shaft 8 can be freely determined and be adapted to the force curve for a Operator is cheap.
  • FIG. 8 shows a further variant with the lifting mechanism 60 of the lifting mechanism 25.
  • This in turn has a first Lever 9, a second lever 10, a bearing 7 and a shaft 8 on.
  • the second lever 10 has a cam-shaped head 61, which has an end face 62 with a rounded surface 63 shows.
  • a connecting means 64 is on the end face 62 to see that as a band 65 with an end 66 and an end 67 is designed.
  • the band 65 is at an articulation point 68a fastened with the aid of a fastening means 68.
  • a spring 69 is articulated. The spring 69 acts on the band 65 in the direction of arrow 70 and is itself in the side part 4 (not shown here).
  • the force 71 acts through the deflection on the fastening means 68 in the direction of arrow 72 and acts thus with an effective lever All on the shaft 8.
  • the effective lever 11 with which the force 71 on the shaft 8 acts, remains when the second lever 10 is rotated an angular range 73 constant since the force 71 always tangential to the rounded surface 63 am Fastening means 68 acts.
  • the cam-shaped head 61, the Connection means 64 and the band 65 form here Control means 16.
  • the end face 62 of the cam-shaped head 61 to be provided with elevations and depressions, so that by their configuration on the lever arm with which the spring 69th the shaft 8 is applied, influence can be exerted.
  • the connecting means is provided by one Antidote pressed into the recesses on the front side 62.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
EP00111990A 1999-07-09 2000-06-19 Mécanisme de levage Expired - Lifetime EP1068832B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19931877 1999-07-09
DE19931877A DE19931877A1 (de) 1999-07-09 1999-07-09 Hebemechanismus

Publications (3)

Publication Number Publication Date
EP1068832A2 true EP1068832A2 (fr) 2001-01-17
EP1068832A3 EP1068832A3 (fr) 2002-05-02
EP1068832B1 EP1068832B1 (fr) 2006-01-25

Family

ID=7914112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111990A Expired - Lifetime EP1068832B1 (fr) 1999-07-09 2000-06-19 Mécanisme de levage

Country Status (4)

Country Link
US (1) US6375175B1 (fr)
EP (1) EP1068832B1 (fr)
DE (2) DE19931877A1 (fr)
ES (1) ES2255916T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322795A2 (fr) * 1987-12-24 1989-07-05 Nippon Petrochemicals Co., Ltd. Acides tétrapyrrole-aminocarboxyliques

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7021592B2 (en) * 2004-02-18 2006-04-04 Brandes Raymond V Quick-adjusting mounting head
ES2385835T3 (es) * 2005-04-27 2012-08-01 Hoshizaki Denki Kabushiki Kaisha Lavavajillas
US8899540B2 (en) * 2011-01-31 2014-12-02 Weber Knapp Company Counterbalance mechanism
DE102015205602A1 (de) 2015-03-27 2016-09-29 Meiko Maschinenbau Gmbh & Co. Kg Reinigungsvorrichtung und Verfahren zum Reinigen von Reinigungsgut
CZ2016106A3 (cs) * 2016-02-24 2017-05-03 EKOTES TRADE spol. s r.o. Mechanismus k optimalizaci ovládací síly s plynulou automatickou změnou převodového poměru

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246938A (en) * 1963-11-18 1966-04-19 Tore H Noren Mechanism for holding dishwashing machine door closed and for raising door
US3589787A (en) * 1969-11-12 1971-06-29 Alco Standard Corp Dishwasher door operator
US4811997A (en) * 1988-02-19 1989-03-14 Hoshizaki Electric Co., Ltd. Dishwasher
JPH06142028A (ja) * 1992-10-30 1994-05-24 Sanyo Electric Co Ltd 食器洗浄機

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1846583A (en) * 1927-08-17 1932-02-23 Monroe Calculating Machine Power transmission mechanism
US2709057A (en) * 1950-04-10 1955-05-24 Nat Valve & Mfg Company Constant load support
US2845263A (en) * 1951-07-30 1958-07-29 Gund Konrad Load-balancing device
DE1063932B (de) 1955-12-21 1959-08-20 Ingenioers N Elreco Aktiebolag Vorrichtung zum OEffnen und Schliessen von Klappen, Tueren od. dgl.
NL278301A (fr) * 1961-05-12
US3745083A (en) * 1971-02-04 1973-07-10 Kelly T Apparatus for visually marking an article with characters over an opaque background covering
FR2352527A1 (fr) * 1976-05-24 1977-12-23 Thirode Roger Mecanisme d'ouverture du capot d'une machine professionnelle a laver la vaisselle
US4768762A (en) * 1985-05-15 1988-09-06 Lund Kurt O Means and method to counterbalance the weight of a body
US5791546A (en) * 1995-06-01 1998-08-11 3J Design, Inc. Improved tin tag dispensing apparatus and cartridge
US5630438A (en) * 1995-09-12 1997-05-20 Premark Feg L.L.C. Collapsible door for a warewasher
HU219724B (hu) * 1998-07-28 2001-07-30 Arturo Salice S.P.A. Működtető berendezés függőleges irányban eltolható záróelemmel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246938A (en) * 1963-11-18 1966-04-19 Tore H Noren Mechanism for holding dishwashing machine door closed and for raising door
US3589787A (en) * 1969-11-12 1971-06-29 Alco Standard Corp Dishwasher door operator
US4811997A (en) * 1988-02-19 1989-03-14 Hoshizaki Electric Co., Ltd. Dishwasher
JPH06142028A (ja) * 1992-10-30 1994-05-24 Sanyo Electric Co Ltd 食器洗浄機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 451 (C-1241), 23. August 1994 (1994-08-23) & JP 06 142028 A (SANYO ELECTRIC CO LTD), 24. Mai 1994 (1994-05-24) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322795A2 (fr) * 1987-12-24 1989-07-05 Nippon Petrochemicals Co., Ltd. Acides tétrapyrrole-aminocarboxyliques
EP0322795B1 (fr) * 1987-12-24 1995-09-20 Nippon Petrochemicals Co., Ltd. Acides tétrapyrrole-aminocarboxyliques

Also Published As

Publication number Publication date
US6375175B1 (en) 2002-04-23
EP1068832A3 (fr) 2002-05-02
DE50012106D1 (de) 2006-04-13
DE19931877A1 (de) 2001-01-11
EP1068832B1 (fr) 2006-01-25
ES2255916T3 (es) 2006-07-16

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