Push nut
AssigneeTopy Fasteners, Ltd.
InventorsYoshiaki Haga, Ken'ichi Miyoshi, Fumio Nakazima, Yoshinobu Katsuno
Life of this patent
Estimating the term…
Abstract
A push nut formed of an annular rim and an elastic prong member having a fragile portion capable of being easily bent with a pushing force can be easily engaged with a rod-shaped article such as a shaft, consequently to firmly secure the rod-shaped article onto a frame of an electrical appliance or the like. The fragile portion of the prong member is formed by one or more slots, thin-walled parts, or grooves. The push nut engaged with the rod-shaped article can easily be disengaged by pressing down the prong member with a cylindrical tool to bend the prong member at the fragile portion, so that the rod-shaped article can be freed from the frame of the electrical appliance with little damage and can be reused effectively.
Claims14
A push nut comprising:
- an annular rim;
- a prong member extending from said annular rim, said prong member having a substantially truncated conical shape and having therethrough an axial hole for tightly receiving a rod-shaped article, and said prong member being formed of blade pieces circumferentially separated by respective notches;
- and
- each said blade piece having a radially outer edge extending from said annular rim and a radially inner edge at said axial hole, and each said blade piece including a fragile portion at which said blade piece may be bent, said fragile portion being located at a position spaced from said notches and both said outer edge and said inner edge of said blade piece.
A push nut formed of elastic material and comprising:
- a flat annular rim;
- a prong member extending from said annular rim, said prong member having a substantially truncated conical shape and having therethrough an axial hole for tightly receiving a rod-shaped article, and said prong member being formed of blade pieces circumferentially separated by respective notches;
- and
- each said blade piece having a radially outer edge extending from said flat annular rim and a radially inner edge at said axial hole, and each said blade piece including a fragile portion by which said blade pieces easily are bendable by application to said fragile portions of an axial force, each said fragile portion being located at a position spaced from said notches and both said outer edge and said inner edge of the respective said blade piece.
Dependencies are inferred from the claim text.