Title:
FASTENING DEVICE AND SPRING WASHER OF FASTENING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/170842
Kind Code:
A1
Abstract:
The present invention relates to a fastening device including a spring washer, a nut and a resistivity meter. The spring washer closely comes into contact with a fastened object by being screw-coupled with a thread part of a bolt and is divided into one end part and another end part, wherein the one end part and the other end part can come into contact with each other through an electrode and are separated from each other due to the height of the spring washer which increases as the spring washer goes from the one end part to the other end part. The nut comprises a mounting groove into which the spring washer is fitted and mounted. The resistivity meter measures resistance according to the contact and separation of the one end part and the other end part by connecting the electrode thereto. According to this configuration, axial force measurement is enabled by electric resistivity which is varied according to the deformation of the spring washer, and thus a fastening force can be adjusted and monitored and a release prevention function and a locking function of the nut can be effectively performed.
Inventors:
CHOI SUNG MO (KR)
Application Number:
PCT/KR2015/003966
Publication Date:
November 12, 2015
Filing Date:
April 21, 2015
Export Citation:
Assignee:
UNIV SEOUL IND COOP FOUND (KR)
International Classes:
F16B43/00; F16B37/00; G01L1/20; G01L5/12
Foreign References:
| JP2009064111A | 2009-03-26 | |||
| JP2006349011A | 2006-12-28 | |||
| KR101381869B1 | 2014-04-07 | |||
| KR20000008654U | 2000-05-15 |
Attorney, Agent or Firm:
JEONG, NAM JIN (KR)
정남진 (KR)
정남진 (KR)
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