Title:
WEIGHT DETECTION APPARATUS AND MICROWAVE OVEN
Document Type and Number:
Japanese Patent JP3639986
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To achieve miniaturization and cost reduction of a weight detection apparatus for use with a microwave oven and to permit high-accuracy weight detection.
SOLUTION: This apparatus includes a thrust shaft 41 which is displaced in thrust direction according to weight, a first relative displacement detection member 42 which turns according to displacement of the thrust shaft, a second relative displacement detection member 43 which is not turned in response to displacement of the thrust shaft 41 but in response to a rotary driving force from a rotary drive means 12, and position keeping means for keeping the circumferential positions of the first and second relative displacement detection members 42, 43. The apparatus is provided with a weight conversion means which detects the amount of displacement of the first relative displacement detection member 42 relative to the second relative displacement detection member 43, and which converts the amount of displacement into weight.
Inventors:
Shigeru Ozawa
Hidehiro Kumagai
Tokugyo Akabane
Hidehiro Kumagai
Tokugyo Akabane
Application Number:
JP381899A
Publication Date:
April 20, 2005
Filing Date:
January 11, 1999
Export Citation:
Assignee:
Sankyo Seiki Co., Ltd.
International Classes:
G01G7/00; F24C7/02; G01G3/00; G01G19/52; (IPC1-7): G01G19/52; F24C7/02; G01G3/00
Domestic Patent References:
| JP2922755B2 | ||||
| JP3513392B2 | ||||
| JP3620818B2 |
Attorney, Agent or Firm:
Shuji Watanabe