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Title:
DOUBLE-ACTING LOCKWASHER
Document Type and Number:
Japanese Patent JP2017129279
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lockwasher (10) which is to be inserted between a bearing element (38) and a screwable element (42) and which includes two rings (12 and 14) each of which has an engagement surface (22, 24).SOLUTION: The rings (12 and 14) which engage with one another and maintain compressed under axial pressure between the bearing element (38) and the screwable element (42) are capable, when the screwable element is unscrewed, of rotatably engaging with the screwable element (42), so as to rotate the rings (12 and 14) relative to one another, in order to rotatably lock the screwable element (42). According to the invention, the lockwasher is frusto-conical, and the lockwasher is elastically deformable in order to be able to be flattened, forming a spring between the bearing element (38) and the screwable element (42) such that the axial pressure is maintained substantially constant.SELECTED DRAWING: Figure 1

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Inventors:
CHRISTOPHE DELCHER
Application Number:
JP2017064659A
Publication Date:
July 27, 2017
Filing Date:
March 29, 2017
Export Citation:
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Assignee:
NORD-LOCK INT AB
International Classes:
F16B39/24; F16B43/00
Domestic Patent References:
JP2013529761A2013-07-22
JPS514446A1976-01-14
JPS6297314U1987-06-20
JPS55115421U1980-08-14
JPS5939311U1984-03-13
Foreign References:
US5203656A1993-04-20
GB1043843A1966-09-28
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe



 
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