Title:
FALLING-OFF PREVENTION TOOL
Document Type and Number:
WIPO Patent Application WO/2017/110852
Kind Code:
A1
Abstract:
This falling-off prevention tool (1) is provided with a coil spring part (2) in which a coil wire (2A) is wound, and a protruding part (3). In the protruding part (3), an extension coil wire (3A) extending from one end of the coil wire (2A) constituting a part of the coil spring part (2) is wound in a substantially triangular shape so as to be coaxial with the coil spring part (2) and so that the winding range is greater than the winding range of the coil spring part (2). The protruding part (3) has an end region (3B), which is a region in a predetermined range from the tip of the extension coil wire (3A) set away from the one end of the coil wire (2A), the end region (3B) being located on the side set away from the coil spring part (2) in the same direction as that in which the winding center of the coil spring part (2) extends.
Inventors:
SOEDA MAYUMI (JP)
Application Number:
PCT/JP2016/088054
Publication Date:
June 29, 2017
Filing Date:
December 21, 2016
Export Citation:
Assignee:
SIT CO LTD (JP)
International Classes:
F16B39/20; F16B39/22; F16B39/34; F16B41/00
Domestic Patent References:
| WO2011145212A1 | 2011-11-24 |
Foreign References:
| JP2004100952A | 2004-04-02 | |||
| JP2011027178A | 2011-02-10 | |||
| JP2016156482A | 2016-09-01 |
Attorney, Agent or Firm:
ARIYOSHI Shuichiro et al. (JP)
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