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
  • A47L15/4251—Details of the casing
  • A47L15/4257—Details of the loading door
• • 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 a dishwashing machine provided with a vertically movable door which when closed seals against the side of a doorframe mounted in a door opening which leads to a treatment chamber in which dishes are washed, by spraying the dishes with washing liquid.
• the object of the invention is to provide an arrange ⁇ ment by means of which the door can be opened and closed in a manner such that when the door is open and exposes said door opening, the door will not lie exter- nally of the front side of the machine or the upper side thereof or require flaps to be lowered and raised, as is the case with a number of known dishwashing machines.
• the need for such an arrangement is particu ⁇ larly pronounced in smaller or older restaurant it- chens, where space is often at a minimum.
• the treatment chamber is accessible from above and down ⁇ wards, so as to facilitate handling of dishes when placing dishes into the machine and removing dishes therefrom.
• Figure 1 is a front view of a dishwashing machine constructed in accordance with the invention and having a door hinged for vertical movement.
• Figure 2 is a vertical sectional view of the machine and illustrates the hinged door schematically.
• the dishwashing machine has a treatment chamber 10 and dish-supporting trays or baskets (not shown) and spray nozzles (not shown) through which the dishes are sprayed.
• the chamber has a front wall 12, a rear wall 14, a top wall 16 and side walls 18.
• a door 20 comprises a bottom section 22, a centre section 24 and a top section 26.
• the door opening is defined by a bottom part 28 in which the bottom door section 22 and the centre door section 24 sealingly fit, and a top part 30 whose frame sides extend obliquely upwards and in towards the machine interior.
• the top door section 26 is arched and consequently the top part of the door opening will have correspondingly arched frame sides.
• the door also seals against the bottom edge 32 and the top edge 34 of the door opening when the door is closed.
• Sealing is achieved by pressing the bottom section 22 in a direction from within and outwards, as is also the case with the centre section 24, whereas the top sec ⁇ tion 30 is pressed inwardly from the outside, in a manner described herebelow.
• a horizontal pivot shaft 36 intended for the pivot pins of two pivot arms 38, the outer ends of which are connected with the centre section 24 and have a slightly obliquely and downwardly extending position when the door is closed.
• the bottom section 22 is connected to the centre sec ⁇ tion 24 by means of a hinge joint 40.
• Two linkage arms 42 are pivotally mounted on a pivot shaft 44 located beneath the pivot shaft 36 and the outer ends of said arms are connected by means of a hinge joint 46 to the bottom section 22, preferably at the lower end part of said section, as illustrated, so as to obtain good stability.
• the bottom section, and therewith the whole of the door, can be lifted with the aid of a handle 48 located at a comfortable lifting height.
• the upper section 26 is connected to the centre section 24 by means of a hinge joint 50.
• Two securely fixed guide cams 52 are provided for coacting with laterally directed pins 30A at the upper edge part of the top section immediately prior to the door being located in its closed position, such that the top section will be urged from within and outwardly so as to seal the closed door.
• the top section 26 and corresponding part 30 of the door opening is wider than the bottom section 22 and corresponding part of said door opening.
• the centre section also converges and forms wedge surfaces which pass into sealing abutment with corresponding converging side-edge parts of the door opening.
• the height or verti- cal extension of the centre section is relatively small in relation to the height or vertical extension of the other sections, in the illustrated embodiment less than one-fifth of the height of the bottom section.
• the bottom section 22 is located in the upper part of the chamber.
• the door is balanced with the aid of spring devices (not shown), so that it can be lifted easily, the handle 48 being located in a readily accessible posi ⁇ tion beneath the upper edge 34 of the opening.
• the centre section 24 and the top section 26 may form a rigid unit, although in this case the posi ⁇ tion of the rear wall 14 must be moved slightly rear ⁇ wards in order to provide space for the section 26.
• the hinge joint 46 can be moved to a higher position on the bottom section.
• the path followed by the top section can be achieved with the aid of fixed guide paths for accommodating pins provided on said section.

Landscapes

• Washing And Drying Of Tableware (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20377167

Family Applications (1)

Country Status (7)

Cited By (2)

Families Citing this family (12)

Citations (4)

Family Cites Families (3)

• 1989
  • 1989-10-17 SE SE8903408A patent/SE8903408D0/sv unknown
• 1990
  • 1990-10-16 EP EP90915536A patent/EP0500571B1/en not_active Expired - Lifetime
  • 1990-10-16 WO PCT/SE1990/000661 patent/WO1991005506A1/en active IP Right Grant
  • 1990-10-16 ES ES90915536T patent/ES2054376T3/es not_active Expired - Lifetime
  • 1990-10-16 US US07/848,945 patent/US5257638A/en not_active Expired - Fee Related
  • 1990-10-16 DE DE69009491T patent/DE69009491T2/de not_active Expired - Fee Related
  • 1990-10-16 JP JP2514478A patent/JPH05501212A/ja active Pending

Patent Citations (4)

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