公开(公告)号：US20210055193A1

公开(公告)日：2021-02-25

申请号：US17040365

申请日：2019-03-14

Applicant: NHK SPRING CO., LTD.

Inventor： Kaoru NAGASAWA ,  Kotaro NUKUI ,  Suguru SHIGENO

IPC: G01N3/12 ,  G01B21/04

Abstract: Provided is a load measuring device and a load measuring method, capable of preventing a measuring error caused by an initial load in a state where an elastic member is held by a pair of holding parts when a load of the elastic member at the time of stretching is measured. A pair of holding parts 5, 7 are caused to approach or space away with respect to each other relatively to an initial position at which the pair of the holding parts hold a close contact spring S, thereby making an initial load measured at the initial position zero, the pair of holding parts 5, 7 are caused to space away with respect to each other from a starting position being a position at which the initial load becomes zero, and a load at a time of stretching is caused to be measured.