• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    110222 I:PatrawinTEMPNL~PO5760085 Application Text and Drawings ~To be filed.20llO222lO0l024879.docm lO ABSTRACT The present invention relates to a dishwasher having a double-door arrangementcomprising a first door openable by Vertical translation from a lower closed position toan upper open position and a second door openable by pivoting outwards around a pivotpoint arranged at a lower end thereof. The first door and the second door areinterconnected by a linkage arranged to transfer an opening force applied to the seconddoor to an opening force applied to the first door and the linkage comprises a firstsegment extending from the second door and a second segment extending between adistal end of the first segment and the first door. In particular, the linkage comprises areleasable section, such that the second door may be disengaged from the first door thusallowing for the second door to pivot beyond a horizontal position in an opening direction.
    公开号:SE1150144A1
    申请号:SE1150144
    申请日:2011-02-22
    公开日:2012-08-23
    发明作者:Per Ovesen；Per Walter；Tomislav Primorac；Fredrik Andersson
    申请人:Gs Dev Ab；
    IPC主号:
    专利说明:

    110222 I:PatrawinTEMPNL~P05760085 Application Text and Drawings ~To be filed.201102221001024879.docm ARRANGEMENT IN DISHWASHER, AND METHOD FOR OPERATINGDISHWASHWER HAVING SUCH ARRANGEMENT Field of the InventionThe present invention relates to an arrangement in a dishwasher, and in particular to an arrangement for the door of a dishwasher.
    BackgroundWhen doing dishes in a commercial establishment, such as in a restaurant or a cantina, use is made of high-capacity dishwashers (the terrns Ware washers, utensilwasher etc. may also be used). There are several different types of dishwashers ordishwasher assemblies for this purpose, and variables include capacity, space efficiency,type of residues to be removed, etc.
    One particular type of dishwasher has a double-door system, comprising anupper door operating in a guillotine fashion, and a lower door being pivotally mountedat its lower end. The lower door and the upper door may be connected by means of alinkage such that when the lower door is pivoted to an opened position the upper door ispushed upwards to an open position, too.
    One advantage with this type of door arrangement is that a large opening areamay be provided in a space efficient way. Also, the upper door will act as a deadweightfor the lower door as the latter “falls” outwardly to an open position. By having asuitable weight distribution between the two doors it will be easy for a user to open andclose the dishwasher. If the corresponding solution were to be achieved using apivotally mounted door only, the opened door would extend over a large area, making itdifficult to reach into the dishwasher besides from simply being in the way, and itwould possibly be necessary to add counterweights or springs to facilitate opening andclosing. The lower door acts as a loading area, where a utensil tray may be placedduring loading and unloading. Utensil trays may also be slid onto the opened door froman upstream arrangement, such as a rinse system, thus providing an ergonomic mode ofoperation. This is one reason to why a pivotal door may be preferred on somedishwashers.
    An example of the above type of dishwasher is disclosed in the patent US -4 018 239, which may serve as prior art for the present invention. 110222 I:PatrawinTEMPNL~P05760085 Application Text and Drawings ~To be filed.20ll0222l00l024879.docm The present invention aims at providing an improved door arrangement for adishwasher, maintaining the above beneficial features while adding more in the purpose of enabling an even more ergonomic mode of operation.
    SummagvFor achieving the above purpose the present invention relates to a dishwasher having a double-door arrangement comprising a first door openable by verticaltranslation from a lower closed position to an upper open position (a guillotine door)and a second door openable by pivoting outwards around a pivot point arranged at alower end thereof, wherein the first door and the second door are interconnected by alinkage arranged to transfer an opening force applied to the second door to an openingforce applied to the first door. The dishwasher is characterized in that the linkagecomprises a releasable section, such that the second door may be disengaged from thefirst door thus allowing for the second door to pivot beyond a horizontal position in anopening direction.
    The double-door arrangement has several advantages, yet a problem may appearin regard of accessibility during manual cleaning or service of the interior of thedishwasher. With the second door being opened and extending horizontally outwardsthe physical working position may be awkward for a service person. The presentinvention allows for a more ergonomic physical working position and an improvedaccessibility.
    In its simplest form the linkage is provided by a first segment extending from alower edge of the second door where it is rigidly attached, at an approximate right anglethereto, and a second segment extending from the free end (or distal end) of the firstsegment. The second segment is pivotally attached to said free end with its first end, andpivotally attached to the first door with its second end. Both segments may be rigid. Asthe second door is opened the free end of the first segment, two which the secondsegment is attached, will follow an arcuate path, and thereby the first door will beforced upwards.
    According to one or more embodiments of the present invention the linkagecomprises a release joint, and in one or more embodiments the release joint is arrangedto remain engaged when it absorbs the weight of the first door. In to one or moreembodiments the release joint comprises a pin/ groove connection, where a pin axis mayfit in a groove of a second segment of the linkage. This arrangement allows for the joint to pivot in one plane, and by shaping the groove the desired properties are readily 110222 I:PatrawinTEMPNL~P05760085 Application Text and Drawings ~To be filed.20ll0222l00l024879.docm achievable. In other embodiments the release joint comprises a ball joint. The releasejoint may be arranged between the first segment and the second segment, which is aposition which is reachable by a user, and a position in which the above examples ofrelease joints may be readily realized.
    In one or more embodiments the second segment of the linkage comprises stoplugs, arranged and dimensioned to prevent the second door from pivoting beyond thehorizontal position. This arrangement is convenient since it suffices with one releaseaction (per linkage, usually two linkages) in order to obtain the desired result. The stoplugs extend outwards, towards the lateral edges of the opening of the dishwasher and areadapted to engage a surrounding structure when the second door is in the correcthorizontal position.
    According to one or more embodiment the dishwasher comprises a lock devicefor securing the first door in an open position. Such a lock device is preferred, yet notessential. Preferred since it facilitates for the user, and not essential since there will beroom for a user to access the interior of the dishwasher even if the first door is in itsclosed position. More advantages of the lock device will be discussed in the detaileddescription. A suggested lock device includes a hook arrangement pivotally attached toan upper surface of the interior of the dishwasher. This arrangement makes it easy tofold the lock device out of the way when not needed and easy to verify whether a lockedposition is obtained or not.
    According to a second aspect of the present invention the release joint isarranged where the linkage couples to the second door. In one or more embodiments therelease joint comprises a releasable hinge. The releasable hinge is lockable such that itmay be locked during normal use, and released when as the second door should bepivoted beyond the horizontal position. The aspect has a benefit in that the linkagebetween the first and the second door is intact at all times. One possibility for a lockablehinge may be that a hinge is used as one of at least two connection points between thefirst segment and the second door. The second connection point may be a releasablecoupling, such as one provided with a releasable lock-pin, a draw-bolt catch, or anyother releasable coupling obvious to the skilled person aware of the details consideringstress and load of the actual application.
    In one or more embodiments the second segment may be attached to walls of aninner chamber of the dishwasher by means of a magnetic force in the released position.
    A method for operating a dishwasher of the type having a double-door arrangement comprising a first door openable by vertical translation from a lower closed 110222 I:PatrawinTEMPNL~P05760085 Application Text and Drawings ~To be filed.201102221001024879.docm position to an upper open position (a guillotine door) and a second door openable bypivoting outwards around a pivot point arranged at a lower end thereof, wherein the firstdoor and the second door are interconnected by a linkage arranged to transfer anopening force applied to the second door to an opening force applied to the first door,the linkage coniprising a releasable section, such that the second door may bedisengaged froni the first door thus allowing for the second door to pivot beyond ahorizontal position in an opening direction coniprises the steps of opening the dishwasher, optionally locking the first door in place releasing the releasable section of the linkage pivoting the second door beyond a horizontal position.
    Brief Description of the Drawings Figs. 1 and 2 are scheniatic sequential sectional sideviews illustrating the doorarrangenient of a prior art dishwasher.
    Fig. 3 is a scheniatic sectional sideview of a dishwasher having a doorarrangenient in accordance with a first enibodinient of the present invention.
    Figs. 4-6 illustrate two different release joints.
    Fig. 7 illustrates a dishwasher having a release joint according yet anotherenibodinient of the present invention.
    Fig. 8 is a perspective view illustrating a less scheniatic example of a dishwasher according to one enibodinient of the present invention.
    Detailed DescriptionThe present invention is readily understood from the following detailed description concerning a few non-liniiting enibodinients thereof. Fig. 1 is a scheniaticsideview of the general construction of a dishwasher 100 having a double-doorarrangenient with a first door, a guillotine door, 102 and a second door, a pivoting door,104 for access to the interior 106 of a dishwasher. A linkage 108, 110 is used to transferan opening force applied to the second door 104 to the first door 102. In use a firstsegnient 108 of the linkage is rigidly attached at a lower portion of the second door 104at its proxinial end. At its distal end it connects to a second segnient 110 of the linkagewith a first hinged joint 112. The second segnient is connected with a lower portion of the second door via a second hinged joint 114. As the second door 104 is pivoted to an 110222 I:PatrawinTEMPNL~P05760085 Application Text and Drawings ~To be filed.201102221001024879.docm open position, as shown in Fig. 2, the first door 102 will be forced upwards for obviousreasons.
    Stop lugs 116 are preferably provided and arranged to stop the second door 104as it reaches a horizontal position as shown in Fig. 2, and the linkage is tuned such thatthis position corresponds to the first door 102 being in a fully opened position. In theillustrated embodiment the stop lugs 116 are arranged on the second segment 110, forreasons which will be apparent. The stop lugs 116 extend in the plane of the openingand engage edges of the opening or another abutment arrangement at a preferredposition to prevent excessive opening of the second door 104.
    The linkage comprises a release joint 118 of which a first embodiment isillustrated in Fig. 3 and related drawings (Figs. 4-6). It is readily understood that if thefirst hinged joint 112 has the design of Fig. 4, the joint will release if the first door 102is held in an opened position and the second door 104 is moved in a closing direction.The release joint 118 is designed such that the second segment will follow in the closingdirection, into the dishwasher, a short distance before releasing fully. In this way it willbe readily possible to lock the second segment in a position where it is out of the wayfor the subsequent movement in the opening direction. It should be noted that a lesselaborate design, such as the one shown in the sideview of Fig. 6 may also be used. Inshort the release joint comprises a socket 124 with a groove 126 which fits over acooperating shaft 128, and one of the groove and socket is arranged in the end of thefirst segment and the other in the end of the second segment, meaning that the order ofthe components 124 and 126 may be the other way around. The skilled person realizesthat there are other options for the releasable joint, such as a ball joint, having a similarfunctionality.
    After the release joint 118 has been released the second door may be pivotedbeyond the horizontal position and into an essentially vertical position (not shown) inwhich it is out of the way, enabling service personnel to reach into the dishwasher morereadily.
    If the second segment is not secured it may swing outwardly as it releases fromthe first segment, and thus be an obstacle as the first segment is to be pivoted out of theopening. In one embodiment of the present invention this problem is convenientlysolved by use of magnets. In one embodiment a magnet, symbolically illustrated at 120,is located outside of an interior wall of the dishwasher, and if the release joint comprisesor is made to comprise a suitable material it will be magnetically attracted to the magnet and thus the segment will be held into place when released from the first segment. The 110222 I:PatrawinTEMPNL~P05760085 Application Text and Drawings ~To be filed.201102221001024879.docm magnet is preferably located in a place slightly inside of the position in which theengagement between the first and second segment is disrupted. It is obvious that insteadof the above the release joint (or the released end of the second segment) may comprisea magnet and that e.g. a ferromagnetic material may be arranged outside of the interior.Other altematives are also possible, such as having a mechanical hook arrangement forthe second segment. The exemplified types of arrangements may be applied to anyembodiment of the present invention.
    The above arrangement makes enables positioning of the second segmentwithout having to introduce additional constructional details inside the dishwasher,which is a beneficial feature.
    Fig. 7 illustrates a further embodiment of the present invention. In thisembodiment the release joint 218 is arranged where the first segment attaches to thesecond door, at the lower end thereof. A lock arrangement (not shown) is designed tohold the first segment rigidly in place during normal operation, and the lockarrangement may then be unlocked - such that the releasable joint is released - whenopening of the second door beyond the horizontal position is desired. In this case too,the first door should be locked into place before the releasable joint is released.
    In order to secure the first door in an open position a lock device 122 may beprovided. In the illustrated embodiments the lock device comprises a pivotally arrangedhook 122. Some advantages of this specific arrangement is that it has a non-complexmechanical construction, it is simple to verify visually that the first door is secured, andit is impossible for the first door to slip out of the grip of the lock device 122. Theskilled person realizes that there are several other options for the lock device, such as abolt, or latch arrangement. In one or more embodiments the lock device is bistable in itssuspension, such that it either assumes an active position as shown in Fig. 7, where itlocks the first door in an open position, or a passive position as shown in Fig. 3, where itis positioned to interfere with the function of the dishwasher to the least possible extent.One way of obtaining bistability is to arrange a tension spring, schematically indicatedat 123 in Fig. 10, exerting a force between a point on the lock device 122 and a pointlocated above the pivot point on the socket comprising the pivot point, which obviouslyresults in a desired bistable behavior..The skilled person realizes that there are severalways of obtaining a bistable behavior of the lock device 122.
    The present disclosure does not touch details of dishwashers as such, and this isnot considered necessary since the starting point is a very specific door arrangement for a dishwasher. A skilled person within the field of dishwashers (ware washers, utensil 110222 I:PatrawinTEMPNL~PO5760085 Application Text and Drawings ~To be filed.201102221001024879.docm Washers, tray Washers etc) Would have no problem in realizing the present inventionbased on What is disclosed herein. Still, in order for the reader to obtain a more detailedunderstanding of a dishWasher according to one embodiment of the present invention amore realistic perspective view is illustrated in Fig. 8, followed by the detailed views ofFigs. 9 and 10. In the drawings details corresponding to details previously presented inconnection to the schematic illustrations have been given the same reference numerals.In Fig. 8 it is also possible to observe in more detail the interior of the dishWasher.Typically it comprises several spray nozzles 130 for rinsing and cleaning dishes (potsand pans) arranged on a driven rotary basket or holder 132, and the particulardishWasher shown may have the option to add granules to the dishWater in order to obtain a more abrasive effect on food residues.
    权利要求:
    Claims (10)
    [1]
    A dishwasher having a double-door arrangement comprising a first door openable by vertical translation from a lower closed position to an upper open position and a second door openable by pivoting outwards around a pivot point arranged at a lower end thereof, where the first door and the second door are interconnected by a linkage arranged to transfer an opening force applied to the second door to an opening force applied to the first door, wherein the linkage comprises a first segment extending from the second door and a second segment extending between a distal end of the first segment and the first door, characterized in that the linkage comprises a releasable section, such that the second door may be disengaged from the first door thus allowing for the second door to pivot beyond a horizontal position in an opening direction.
    [2]
    The dishwasher of claim 1, wherein the release section is provided by a release joint between the first segment and the second segment.
    [3]
    The dishwasher of claim 2, wherein the release joint comprises pivot pin and a cooperating open groove, connecting the end of the distal end of the first segment to an end of the second segment.
    [4]
    4. The dishwasher of any preceding claim, further comprising lock device for securing the first door in an open position.
    [5]
    The dishwasher of claim 4, wherein the lock device comprises a hook arrangement, pivotally attached with one end to an upper surface of the interior of the dishwasher.
    [6]
    6. The dishwasher of claim 4 or 5, Wherein the lock device exhibits a bistable suspension, such that it may be securely positioned in an active position and a passive position, respectively.
    [7]
    7. Dishwasher according to claim 1, Wherein a coupling between the second door and the first segment of the linkage comprises the releasable section. 10 15 20 110222 I: Patrawin TEMP NL ~ P05760085 Application Text and Drawings ~ To be filed.20l102221001024879.docm
    [8]
    8. The dishwasher of claim 7, wherein the releasable section comprises a lockable hinge, Wherein unlocking of the hinge allows for the desired movement of the second door.
    [9]
    9. The dishwasher of any preceding claim, Wherein stop lugs are arranged on the second segment of the linkage, for preventing the second door from pivoting beyond the horizontal position unless disengaged.
    [10]
    10. A method for operating a dishwasher of the type having a double-door arrangement comprising a first door openable by Vertical translation from a lower closed position to an upper open position and a second door openable by pivoting outwards around a pivot point arranged at a lower end thereof, where the first door and the second door are interconnected by a linkage arranged to transfer an opening force applied to the second door to an opening force applied to the first door, the linkage comprising a releasable section, such that the second door may be disengaged from the first door thus allowing for the second door to pivot beyond a horizontal position in an opening direction comprises the steps of opening the dishwasher, optionally locking the first door in place releasing the releasable section of the linkage pivoting the second door beyond a horizontal position.
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    同族专利:
    公开号 | 公开日
    EP2491844A3|2017-03-22|
    EP2491844A2|2012-08-29|
    SE536248C2|2013-07-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4018239A|1975-11-17|1977-04-19|Hobart Corporation|Tray washer apparatus|
    JPH07124096A|1993-11-04|1995-05-16|Hoshizaki Electric Co Ltd|Washing apparatus|CN104918532A|2013-03-22|2015-09-16|松下知识产权经营株式会社|Dishwashing machine|
    DE102015203132B4|2014-03-13|2021-03-25|Illinois Tool Works Inc.|Dishwasher in the form of a commercial utensil or dishwasher designed as a program machine|
    DE102015102593B4|2015-02-24|2017-04-13|Winterhalter Gastronom Gmbh|dishwasher|
    DE102015111994A1|2015-07-23|2017-01-26|Illinois Tool Works Inc.|Dishwasher in the form of a trained as a programmer commercial utensil or dishwasher|
    US11019980B2|2018-08-24|2021-06-01|Illinois Tool Works Inc.|Conveyor dishwashing machine, and method for operating a conveyor dishwashing machine|
    DE102019128733A1|2019-10-24|2021-04-29|Miele & Cie. Kg|Washer-disinfector for medical instruments|
    DE102020204146A1|2020-03-31|2021-09-30|Meiko Maschinenbau Gmbh & Co. Kg|Cleaning device for cleaning items to be cleaned|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1150144A|SE536248C2|2011-02-22|2011-02-22|Door arrangement in dishwasher and method of using a dishwasher with such door arrangement|SE1150144A| SE536248C2|2011-02-22|2011-02-22|Door arrangement in dishwasher and method of using a dishwasher with such door arrangement|
    EP12156597.2A| EP2491844A3|2011-02-22|2012-02-22|Door arrangement in dishwasher, and method for operating dishwasher having such arrangement|
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