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US 12,523,254 B2Granted
Hollow structure, bearing member, and method for producing hollow structure
AssigneeSintokogio, Ltd.
InventorsNorihiro Asano, Norihito Fujiwara
Life of this patent
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Abstract
A hollow structure is formed from ceramic. The hollow structure includes a main body part and a reinforcing part. The main body part has a spherical outer peripheral surface, and inside the main body part, a hollow is formed. The reinforcing part is formed integrally with the main body part on an inner peripheral surface of the main body part and reinforces the main body part.
Claims7
A hollow structure formed from ceramic, the hollow structure comprising:
- a main body part which has a spherical outer peripheral surface and in which a cavity is formed;
- and
- a reinforcing part which is formed integrally with the main body part on an inner peripheral surface of the main body part and which reinforces the main body part, the reinforcing part having a rib structure constituted by a plurality of ribs provided in a projecting manner on the inner peripheral surface of the main body part.
A method for producing a hollow structure, the hollow structure being formed from ceramic and comprising:
- a main body part which has a spherical outer peripheral surface and in which a cavity is formed;
- and
- a reinforcing part which is formed integrally with the main body part on an inner peripheral surface of the main body part and which reinforces the main body part, the reinforcing part having a lattice structure, a honeycomb structure, or a rib structure,
- the method comprising the step of
- forming, with use of a 3D printer employing fused deposition modeling, the main body part and the reinforcing part integrally with each other.
2 more elements
Dependencies are inferred from the claim text.