US 6,547,480 B1Granted

Composite structure

AssigneeKabushiki Kaisha Yokota Seisakusho

InventorsHiroshi Yokota, Mario Miura

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Abstract

An object of the present invention is to obtain economically a corrosion-resistant, abrasion-resistant or heat-resistant composite structure having a high strength by joining together two members so that the two members may not separate from each other. A composite structure is formed by combining and joining together first and second members. The first member has a protruding part expanding toward its extremity and the second member has a concave part defining a space of a shape corresponding to that of the protruding part of the first member and capable of forming a predetermined clearance between the protruding part of the first member and a surface of the concave part of the second member when the first and the second member are combined. Separation of the first and the second member from each other is prevented by inserting wedges in the clearance. Vacant portions of the clearance remaining after the wedges have been inserted in the clearance may be filled up with a filler.

Claims2

Dependent claims

A composite structure comprising:

first and second members combined and joined together;
wherein the first member has a protruding part expanding toward its extremity, the second member has a concave part defining a space of a shape corresponding to that of the protruding part of the first member and capable of forming a predetermined clearance between the protruding part of the first member and the concave part of the second member when the first and the second members are combined, a minimum inside diameter of the concave part is greater than a maximum outside diameter of the protruding part and a wedge is inserted into the clearance between the protruding part of the first member and the concave part of the second member so that the first and the second members are prevented from being separated from each other,
wherein
one of the first and the second member is a corrosion-resistant, heat-resistant or abrasion-resistant vane structure, and the other is a vane holding member of a metal, and the first and the second member are assembled by fitting one into the other to form an impeller.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 09/743,625Filed 12 Jan 2001
Priority: JP 10-19935814 Jul 1998
Granted: 15 Apr 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16B 2/14
Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening:…
F16B 11/00
Connecting constructional elements or machine parts by sticking or pressing them together
Y10T 403/7052
Wedging or camming: engaged by axial movement
Y10T 428/24008
Structurally defined web or sheet [e.g., overall dimension, etc.]: including fastener for attaching to external surface