Title:
WATER LEVEL DETECTING DEVICE FOR TABLEWARE WASHER
Document Type and Number:
Japanese Patent JPS6288012
Kind Code:
A
Abstract:
PURPOSE:To detect surely a water level by connecting plural float switches provided in a tank in OR circuit constitution. CONSTITUTION:A door 2 is arranged in the front of the tank 1 which has an opening in the front and nozzles 4 are provided at the lower part. Then, water is spouted from the nozzles 4 in a washing stroke and a rinsing stroke while they are rotated to clean tableware in the tank 1. Float switches 6 are provided at the lower part in the tank 1 and detect the water level in the tank 1. In this case, the plural float switches 6 are connected by OR circuit constitution and when their outputs are on continuously for a specific time, they are received as a detection signal. Thus, control is performed stably against fluctuations of the water level and input terminals of a control part are minimized.
Inventors:
OIWA GIHEI
TAKAHASHI TAKETO
TAKAHASHI TAKETO
Application Number:
JP22802285A
Publication Date:
April 22, 1987
Filing Date:
October 14, 1985
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G05D9/12; (IPC1-7): G05D9/12
Attorney, Agent or Firm:
Akira Kobiji (2 outside)