Structural member of pipe shape
AssigneeSumitomo Rubber Industries, Ltd.
InventorsMasahide Oonuki, Tetsuo Yamaguchi, Akihiro Nakahara, Mitsunori Miki
Life of this patent
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Abstract
The present invention provides a pipe-shaped structural member made of fiber reinforced plastics or fiber reinforced rubber utilizing the mechanical property of the material as an anisotropic material. Since the angle of the fibers and/or direction of orientation are made partially different in the circumferential direction of the structural member, and moreover, since the part where the angle of fibers and/or direction of orientation are made partially different is at least a part in the thicknesswise direction of the circumferential part, the pipe-shaped structural member shows a peculiar style of deformation, and is applicable to a variety of industrial fields.
Claims20
A pipe-shaped structural member made of an elongated cylindrical shaped orientated rubber having a predetermined thickness measured in the radial direction thereof, comprising:
- a first part of said cylindrical shape rubber extending in an arc along a circumferential direction at an angle greater than 0.degree. and less than 360.degree. and having a unidirectional orientation in a first direction;
- a second part of said cylindrical shape rubber extending in an arc along a circumferential direction at an angle which complements the angle of the first part to equal 360.degree. having a unidirectional orientation in a second direction which is different from said first direction,
- said first part being located at a position different from said second part in the circumferential direction of said member, and each of said first and second parts being formed as, at least, a portion of said member in the radial direction.
A pipe-shaped structural member made of an elongated cylindrical shaped orientated rubber having a predetermined thickness measured in a radial direction thereof, comprising:
- a first part of said cylindrical shape rubber extending in an arc along a circumferential direction at an angle greater than 0.degree. and less than 360.degree. and having a unidirectional orientation in a first direction;
- a second part of said cylindrical shape rubber extending in an arc along the circumferential direction at an angle greater than 0.degree. and less than 360.degree. having a unidirectional orientation in a second direction which is different from said first direction;
- the remaining parts of said cylindrical shape rubber extending in an arc along the circumferential direction at an angle which compliments a sum of the angles of said first and second parts to equal 360.degree. and having a unidirectional orientation in a direction which is different from said first and second directions;
- said first part being located at a position different from said second part and said remaining parts in the circumferential direction of said member, and each of said first, second and remaining parts being formed, at least, as a portion of said member in the radial direction.
A pipe-shaped structural member made of an elongated cylindrical shaped resin and rubber having a predetermined thickness measured in the radial direction thereof, comprising:
- a first part of said cylindrical shape resin extending in an arc along a circumferential direction at an angle greater than 0.degree. and less than 360.degree. and having unidirectional reinforcing fibers and/or orientation in a first direction;
- a second part of said cylindrical shape rubber extending in an arc along the circumferential direction at an angle which compliments the angle of the first part to equal 360.degree. and having unidirectional reinforcing fibers and/or orientation in a second direction which is different from said first direction,
- said first part being located at a position different from said second part in the circumferential direction of said member, and each of said first and second parts being formed as, at least, a portion of said member in the radial direction.
A pipe-shaped structural member made of an elongated cylindrical shaped resin and rubber having a predetermined thickness measured in a radial direction thereof, comprising:
- a first part of said cylindrical shape resin extending in an arc along a circumferential direction at an angle greater than 0.degree. and less than 360.degree. having unidirectional reinforcing fibers and/or orientation in a first direction;
- a second part of said cylindrical shape rubber extending in an arc along the circumferential direction at an angle greater than 0.degree. and less than 360.degree. having unidirectional reinforcing fibers and/or orientation in a second direction which is different from said first direction;
- the remaining parts of said cylindrical shape resin or rubber extending in an arc along the circumferential direction at an angle which compliments the sum of angles of the first and second parts to equal 360.degree. having unidirectional reinforcing fibers or orientation in a direction which is different from said first and second directions;
- said first part being located at a position different from said second part and said remaining parts in the circumferential direction of said member, and each of said first, second and remaining parts being formed, at least, as a portion of said member in the radial direction.
Dependencies are inferred from the claim text.