Patent ID: 6113058
Filing Date: 2000-09-05
Classification: B60G,F16C

Abstract:
A coupling device, comprising:an elongated plate-shaped synthetic resin-made rod body, a synthetic resin-made cylindrical portion formed integrally at at least one end of the rod body, and a joint piece provided inside the cylindrical portion and which is to be coupled to a mating object;the rod body including a plate member presenting a ribbed region extending longitudinally along first and second peripheral sides of said plate member, said ribbed region including rib structure projecting in opposite directions orthogonal to the plate member;at least a length portion of said rib structure disposed along at least one of said first and second peripheral sides on at least one of opposite faces of said plate member being recessed in an opposite direction to a projecting direction thereof to define a pair of outer and inner ribs spaced-apart from one another over said length portion and positioned within said ribbed region, said outer rib being located proximal an outermost edge of said plate member; andsaid rib region being laterally spaced apart from a longitudinal central axis of said plate member, said inner rib being located between said longitudinal central axis and said outer rib, and positioned substantially closer to said outer rib than to said longitudinal central axis, said inner rib being protected by said outer rib such that the coupling device can be safeguarded against a sudden attenuation of its strength.