Title:
FASTENING TORQUE MANAGEMENT TOOL, AND COMBINATION OF FASTENING TORQUE MANAGEMENT TOOL AND FASTENING TOOL
Document Type and Number:
Japanese Patent JP2018204624
Kind Code:
A
Abstract:
To provide a fastening torque management tool (2) capable of sufficiently increasing fastening torque though it can be comparatively inexpensively manufactured from a synthetic resin, and sufficiently preventing a fastening tool (hexagonal nut 30) from being housed in a storage hole (8) by positioning each angular portion of a regular polygonal outer peripheral face (32) of the fastening tool (hexagonal nut 30) in each recessed portion (16) of the storage hole (8) by storing the fastening tool (hexagonal nut 30) in the storage hole (8) of the fastening tool storage portion (4) as required, that is, without storing the regular polygonal outer peripheral face of the fastening tool while aligned to a virtual regular polygonal inner peripheral face of the storage hole (8).SOLUTION: A regular polygonal shape defined by a straight line (17) connecting adjacent opening ends (17a, 17b) of adjacent recessed portions (16) in a storage hole (8) is determined to be larger than a torque application regular polygonal outer peripheral face of a fastening tool (hexagonal nut 30). Or a blocking projection (29) for blocking intrusion of the fastening tool (hexagonal nut 30) is disposed on at least one of the recessed portions (16) existing on an inner peripheral face of the storage hole (8).SELECTED DRAWING: Figure 5
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Inventors:
KOBAYASHI RYUTA
Application Number:
JP2017106785A
Publication Date:
December 27, 2018
Filing Date:
May 30, 2017
Export Citation:
Assignee:
NIPPON CLOSURES CO LTD
International Classes:
F16B31/02
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Attorney, Agent or Firm:
Naozumi Ono
Sachiko Okunuki
Toshiyuki Kojima
Sachiko Okunuki
Toshiyuki Kojima