Title:
LOAD CELL SCALE
Document Type and Number:
Japanese Patent JPH02234028
Kind Code:
A
Abstract:
PURPOSE:To obtain an indiscrete value of high accuracy by fixing a load receiving body having a load receiving point in the center of a strain-generating body to a movable part of the strain-generating body of a load cell, and placing a pan bringing it into contact with the load receiving point of the load receiving body in a free state. CONSTITUTION:Four pieces of load cells 3 are attached onto a base 1, each load cell 3 is fixed by a fixing part 2, and to a movable part 5 of the load cell 3, a load receiving body 13 is fixed. A load receiving point 14 of this load receiving body 13 is set so as to be positioned in the center of a strain- generating body 9 of a strain-generating body 6 of the load cell 3. Also, a pan 12 is placed in a state that it only comes into contact with the load receiving point 14. In this state, when an object to be weighed of weight W is positioned in the center of the pan 12, a load of W/4 is applied to each load cell. Its load generates a moment of Wl/4 between the load receiving point 14 and the mov able part 5, and generates a moment of Wl/4 in the reverse direction between the movable part 5 and the center of the strain-generating body 9. Therefore, the moments are offset, and the linearity of an applied load and a weighing output is maintained satisfactorily.
Inventors:
KITAGAWA TORU
YAMASHITA TAKAHARU
YAMASHITA TAKAHARU
Application Number:
JP5558489A
Publication Date:
September 17, 1990
Filing Date:
March 08, 1989
Export Citation:
Assignee:
TOKYO ELECTRIC CO LTD
International Classes:
G01G3/14; G01G21/23; G01G21/24; (IPC1-7): G01G3/14; G01G21/23; G01G21/24
Attorney, Agent or Firm:
Akira Kashiwagi