Cleaning and liquid contact with solids – Apparatus – Operating or controlling device engaged and moved by work or...
Patent
1992-06-15
1994-02-22
Stinson, Frankie L.
Cleaning and liquid contact with solids
Apparatus
Operating or controlling device engaged and moved by work or...
134 57D, 134 58D, 134133, 134165, B08B 302
Patent
active
052878660
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a dishwashing system suitable for washing and rinsing tableware and storing the rinsed tableware.
BACKGROUND ART
In a conventional dishwashing system, a heavy rack which retains thereon tableware is placed in a washing chamber of a dishwashing machine, and the tableware is washed and rinsed when a door of the washing chamber is closed. When the door is opened after rinse of the tableware, the rack which retains thereon the rinsed tableware is taken out of the washing chamber onto a work table. When the work table becomes full of racks during repetition of the above-mentioned works, the individual racks which retains thereon rinsed tableware are sequentially carried to a proper place.
With the above construction, it is performed wholly with hands to place each of the racks in the washing chamber, to move each of the racks from the washing chamber onto the work table and to carry away each of the racks from the work table to the proper place. If those works are done by a single worker, the worker is forced to overwork, causing undesired results and inevitably dropping the rate in operation of the dishwashing machine. The surface area of the work table is also required to be wider in accordance with the number of racks. These defects are recognized especially remarkable in case the aforementioned individual works are done together with washing and rinsing of many tableware at a time in a large-scale restaurant facility in a hotel and the like.
DISCLOSURE OF THE INVENTION
It is therefore an object of the present invention to provide a dishwashing system, capable of effecting the above-described individual works related to the individual racks automatically as much as possible.
The object of the present invention is attained by providing a dishwashing system comprising:
a dishwashing machine for washing tableware at every time when each rack holding thereon tableware is placed in a washing chamber;
a wagon provided therein with plural stages of horizontal storage shelves in an up-and-down direction;
an elevator disposed between the wagon and the dishwashing washing machine and provided therein with an elevatable base for placing thereon the each rack holding thereon tableware at every time when the each rack is removed from the washing chamber and with a conveying mechanism mounted on the base for horizontally conveying the each rack placed on the base to store the each rack onto each of the storage shelves;
reference position detecting means for detecting a reference position defined in the elevator when the base reaches the reference position;
placing detection means for detecting placing of the each rack on the base at every time when the each rack is placed on the base maintained at the reference position;
opposing position detecting means for detecting an opposing position of the base to one of the storage shelves when the base reaches the opposing position; and
drive control means for moving the base upward or downward in response to detection of the placing detection means, for releasing the upward or downward movement of the base in response to detection of the opposing position detecting means to effect horizontal conveyance of the conveying mechanism, for releasing the horizontal conveyance of the conveying mechanism when the placing detection means becomes a non-detection state upon each completion of storing the each rack onto each of the storage shelves to move the base downward or upward, and for releasing the downward or upward movement of the base in response to detection of the reference position detecting means.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a partially broken side view illustrating a first preferred embodiment of a dishwashing system in accordance with the present invention adapted to a dishwashing machine;
FIG. 2 is a block diagram of the dishwashing system;
FIG. 3 is a partial cross-sectional view of an elevator assembly shown in FIG. 1;
FIG. 4 is an enlarged cutaway perspective view illustrating essential portions of
REFERENCES:
patent: 3910297 (1975-10-01), Pinkham
patent: 4299189 (1981-11-01), Nagberg et al.
patent: 4561144 (1985-12-01), Marais
patent: 4676365 (1987-06-01), Noren
patent: 4744379 (1988-05-01), Goettel
Hirate Sadayuki
Suyama Tomio
Torimitsu Hiroshi
Toya Chiyoshi
Yamamura Tomoko
Hoshizaki Denki Kabushiki Kaisha
Stinson Frankie L.
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