Cleaning and liquid contact with solids – Apparatus – With spray or jet supplying and/or applying means
Patent
1992-06-10
1993-11-02
Coe, Philip R.
Cleaning and liquid contact with solids
Apparatus
With spray or jet supplying and/or applying means
134201, 220331, 312328, A47L 1542
Patent
active
052576388
DESCRIPTION:
BRIEF SUMMARY
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 arrangement 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 externally 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 particularly pronounced in smaller or older restaurant kitchens, where space is often at a minimum.
Such an arrangement is achieved in accordance with the invention by means of the characteristic features set forth in the following Claims.
Furthermore, because the upper part of the door opening slopes inwards, the advantage is afforded that the treatment chamber is accessible from above and downwards, so as to facilitate handling of dishes when placing dishes into the machine and removing dishes therefrom.
BRIEF DESCRIPTION OF THE DRAWING
A suitable embodiment of the inventive arrangement is illustrated in the accompanying drawings.
FIG. 1 is a front view of a dishwashing machine constructed in accordance with the invention and having a door hinged for vertical movement.
FIG. 2 is a vertical sectional view of the machine and illustrates the hinged door schematically.
DETAILED DESCRIPTION OF THE INVENTION
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. In the illustrated example, 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 section 30 is pressed inwardly from the outside, in a manner described herebelow.
These relatively small movements that occur immediately before closing the door result in sealing coaction between conical sealing strips disposed along the edges of the door and the edges of the door opening.
Mounted approximately midway between the front and back walls 12, 14 of the frame is 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. When raising the centre section and the bottom section, these sections will thus be moved from their sealing position through a radially outward movement at the same time as the sections are swung up.
The bottom section 22 is connected to the centre section 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 coac
REFERENCES:
patent: 2288482 (1942-06-01), Plohberger
patent: 2290116 (1942-07-01), Morner
patent: 3049391 (1962-08-01), Meeker et al.
patent: 3075819 (1963-01-01), Liegeon et al.
patent: 3279874 (1966-10-01), Noren et al.
patent: 4811997 (1989-03-01), Suyama et al.
LandOfFree
Dish washing machine with a vertically movable door blade does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dish washing machine with a vertically movable door blade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dish washing machine with a vertically movable door blade will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1752151