EP0447586A1 - Clasp for the terminal stop on a guide rail of an extractable element - Google Patents

Clasp for the terminal stop on a guide rail of an extractable element Download PDF

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Publication number
EP0447586A1
EP0447586A1 EP90105457A EP90105457A EP0447586A1 EP 0447586 A1 EP0447586 A1 EP 0447586A1 EP 90105457 A EP90105457 A EP 90105457A EP 90105457 A EP90105457 A EP 90105457A EP 0447586 A1 EP0447586 A1 EP 0447586A1
Authority
EP
European Patent Office
Prior art keywords
clasp
guide channel
lodging
rail
channel
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.)
Withdrawn
Application number
EP90105457A
Other languages
German (de)
English (en)
French (fr)
Inventor
Marcello Premoli
Pietro Manzo
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.)
Whirlpool EMEA SpA
Original Assignee
Merloni Elettrodomestici SpA
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 Merloni Elettrodomestici SpA filed Critical Merloni Elettrodomestici SpA
Publication of EP0447586A1 publication Critical patent/EP0447586A1/en
Withdrawn legal-status Critical Current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
    • A47L15/42—Details
    • A47L15/50—Racks ; Baskets
    • A47L15/507—Arrangements for extracting racks, e.g. roller supports
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/50—Safety devices or the like for drawers
    • A47B88/57—Safety devices or the like for drawers preventing complete withdrawal of the drawer

Definitions

  • Present invention refers to a clasp for the terminal stop on a guide channel or rail, lodging the driving rolls of an extractable element, to be used mainly in a dishwashing machine, having all known elements for washing.
  • To-day dishwashing machines have the remarkable advantage that they may be so loaded to optimize the confined washing chamber room yet neither wasting energy nor performing poorly.
  • This characteristic of the appliance is allowed also due to the possibility to change the height positioning of the pottery baskets, so that in the case the necessary room may be found to insert into the washing chamber, on the lower basket, also dishes or pots of remarkable size.
  • driving rolls for guide channels have been provided, in order to support other rolls, attached to the basket at different heights, so that the user may lift or lower the basket, according to her needs.
  • a known implementation provides for a clasp closing longitudinally the channel section and rigidally fastened to it through a couple of holes and a set of hookings between the clasp itself and the channel.
  • Such a solution is disadvantageous because the manual extraction by the user may result in the loss of the clasp inside the machine, as the unhooking from the channel is difficult, owing to pins inserted into the said holes, which, if the manoeuvre is not correctly performed, come out of the channel and drop inside the appliance.
  • said objects are achieved by means of a clasp for the terminal stop on a guide channel or rail, lodging the driving rolls of an extractable element, to be used mainly in a dishwashing machine, having all known elements for washing, characterized in that there are provided means to allow the automatic closure of the clasp on the guide channel by means of the manoeuvre itself of inserting the extractable element.
  • a dishwashing machine 1 will be described, having an internal washing chamber 2, with a door 3 for front loading of pottery onto extractable baskets, the upper one 4 being shown; washing is performed by a spraying device with rotating arms 5 and 6.
  • gliding guide systems along the walls of chamber 2; the left one of said systems pertaining to the upper basket 4 is shown.
  • each one of the channels has a corresponding one on the opposite side of the washing chamber 2, in the said figure it is shown a cross section of a guide channel or rail 8, horizontally arranged; such a position is allowed due to the fact that channel 8 is inserted into couples of rolls, placed one above the other, one of them 9 and 10 being shown; said rolls may rotate, are of equal shape and show a collar 11 and 12 for guiding internally the channel 8 in a straight way.
  • Each one of the channels shows a cross section approximately U shaped, with opening facing the inside of the chamber, so permitting the rolls to glide internally; one of the rolls 13 is shown; they are located onto the basket 4 of the machine at two heights; a roll having a different height is indicated at 14. Owing to this kind of implementation the basket 4 may be fully extracted from chamber 2 and positioned at different heights, according to the need, inserting rolls 13 or 14 into the guide channel 8.
  • clasps To limit the stroke of rolls 13 or 14 at the ends of channel 8, there are provided clasps, one of them being shown at 15, which radially moves in respect of a pivot 16 drawing a circle 17 and taking different position according to the needs, as 15a, 15b and 15c.
  • clasp 15 in lateral and top view respectively, while figure 6 shows a front sectional view along line VI-VI of the previous ones.
  • clasp 15 Following particulars of clasp 15 are noticeable in the above said three figures: a small tooth 20 for the hooking of clasp 25 to small indentation 19, an arm 21, an end stop 22 for basket 4 rolls, a tooth 23 which hooks to channel 8, a small tongue 24 easing the closing of clasp 15 and a tooth 25, assuring the closing of clasp 15.
  • the present invention has as novelty principle the fact that clasp 15 hooks to guide channel 8 by means of small tooth 20 entering small indentation 19 so that channel 8 does not need to provide interfering material internally, i.e. in the basket rolls, e.g. 13, gliding area.
  • Hooking of the clasp takes place positioning said clasp 15 with a 45° tilt in respect of the channel, i.e. at 135° in respect of the figure, so to may insert small tooth 20 into small indentation 19.
  • the clasp is turned, by force, with also a lateral movement, distorting it elastically, so to surmount the channel; in this way only an anormal movement of the clasp can unhook it from the channel, while the clasp may rotate from about -60° to 90°, position of closed clasp 15b.
  • the shape of clasp 15 is such that the following characteristics are obtained: - the hooking tooth 23 enters a hole on the upper side of channel, see fig. 2, with the clasp in the closed position, so that the roll 13 stays underneath it using the maximum channel length; - small tooth 25 avoids the clasp opening in case the tooth 23 is misplaced in respect of the channel hole; in fact in that case the clasp is prone to open laterally, due to the pressure of roll 13 onto the end stop 22, but the small tooth 25 permits the hooking with roll 13 so limiting the opening; - small tongue 24 is so shaped that, when the clasp is closed it mates at one side with roll 9 of chamber 2, while in the open or semi-open position it does not limit the movement of clasp 15 hitting roll 14, as shown in fig.
  • Such characteristics of the present invention are directed to prevent the user from carelessly forgetting the clasp open and to avoid, contrarily to known solutions, the basket to drop while extracted from the chamber only for the purpose of storing the pottery therein.
  • arm 21 of clasp 15 with a small tooth 28, which, resting onto channel 8, keeps said clasp in the open position 15c, avoiding it to drop in the closed position 15a, which thing would be of inconvenience when the basket is extracted from the channel.
  • Such a variation may be omitted if the clasp keeps its place due to friction with the channel 8.
  • a different using may be represented applying the invention not only to dishwashing machines but also to furniture with extractable boards for household or industrial use as cupboards, shelves, cabinets, etc.

Landscapes

  • Washing And Drying Of Tableware (AREA)
EP90105457A 1989-03-21 1990-03-22 Clasp for the terminal stop on a guide rail of an extractable element Withdrawn EP0447586A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8967200A IT1232010B (it) 1989-03-21 1989-03-21 Fermaglio per la chiusura terminale di una rotaia di guida per un elemento estraibile

Publications (1)

Publication Number Publication Date
EP0447586A1 true EP0447586A1 (en) 1991-09-25

Family

ID=11300437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105457A Withdrawn EP0447586A1 (en) 1989-03-21 1990-03-22 Clasp for the terminal stop on a guide rail of an extractable element

Country Status (2)

Country Link
EP (1) EP0447586A1 (it)
IT (1) IT1232010B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008029367B4 (de) * 2008-06-20 2016-06-16 BSH Hausgeräte GmbH Elektrisches Haushaltsgerät

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB152133A (en) * 1919-07-14 1920-10-14 Frank Edward Pearson Improvements in or relating to the drawers of filing cabinets and other drawers
US3386784A (en) * 1966-10-12 1968-06-04 Uniline Corp Drawer construction including preformed side members and supporting slide rails therefor
FR2383645A1 (fr) * 1977-03-15 1978-10-13 Bosch Siemens Hausgeraete Agrafe de fermeture des extremites d'un rail de guidage pour les galets de roulement d'un panier a vaisselle coulissant dans un lave-vaisselle
FR2389299A7 (fr) * 1977-04-30 1978-11-24 Licentia Gmbh Lave-vaisselle pouvant etre charge frontalement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB152133A (en) * 1919-07-14 1920-10-14 Frank Edward Pearson Improvements in or relating to the drawers of filing cabinets and other drawers
US3386784A (en) * 1966-10-12 1968-06-04 Uniline Corp Drawer construction including preformed side members and supporting slide rails therefor
FR2383645A1 (fr) * 1977-03-15 1978-10-13 Bosch Siemens Hausgeraete Agrafe de fermeture des extremites d'un rail de guidage pour les galets de roulement d'un panier a vaisselle coulissant dans un lave-vaisselle
FR2389299A7 (fr) * 1977-04-30 1978-11-24 Licentia Gmbh Lave-vaisselle pouvant etre charge frontalement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008029367B4 (de) * 2008-06-20 2016-06-16 BSH Hausgeräte GmbH Elektrisches Haushaltsgerät

Also Published As

Publication number Publication date
IT8967200A0 (it) 1989-03-21
IT1232010B (it) 1992-01-22

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

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Effective date: 19920326