Steering-wheel core and casting method therefor
US10357820B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2016 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Feb 16, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D1/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A steering-wheel core and a method for casting the same capable of eliminating the need to perform finishing processing after casting and decreasing manufacturing cost even when the steering-wheel core is cast using a molten metal. The method for casting a steering-wheel core (100) includes: providing a protruding portion (92) in a surface (91) of an inner surface of a casting die (90), with the surface defining a nut seat surface; and causing a molten metal to hit on the protruding portion (92) when the molten metal flows into the casting die (90) such that a change occurs in the flowing direction of the molten metal flowing toward the surface (91) that defines the nut seat surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.