CORE PIN - TOYOTA MOTOR CORP

Title:

CORE PIN

Document Type and Number:

Japanese Patent JP2021074739

Kind Code:

A

Abstract:

To provide a core pin adapted to enhance releasability while suppressing the increase of padding of a casting.SOLUTION: A core pin 11 is to be assembled in a foundry metal mold 100. The core pin 11 comprises an outward portion 11aa facing outward of a casting C1 in a contracting direction X of the casting C1 and an inward portion 11ab facing inward of the casting C1 in the contracting direction X of the casting C1. The outward portion 11aa has a draft α1a greater than a draft α1b of the inward portion 11ab, to enhance releasability while suppressing the increase of padding of the casting C1.SELECTED DRAWING: Figure 2

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Inventors:

YAMAMOTO NAOYA

Application Number:

JP2019202324A

Publication Date:

May 20, 2021

Filing Date:

November 07, 2019

Export Citation:

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Assignee:

TOYOTA MOTOR CORP

International Classes:

B22C9/10; B22C9/06; B22D17/22; B22D18/02; B22D18/04

Attorney, Agent or Firm:

Ken Ieiri

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