The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 27, 2011

Filed:

Feb. 11, 2011
Applicants:

Keita Yoshiara, Tochigi, JP;

Takashi Ikekita, Tochigi, JP;

Atsushi Yamashita, Tochigi, JP;

Yoshimichi Oguri, Tochigi, JP;

Inventors:

Keita Yoshiara, Tochigi, JP;

Takashi Ikekita, Tochigi, JP;

Atsushi Yamashita, Tochigi, JP;

Yoshimichi Oguri, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 33/04 (2006.01); B41B 11/56 (2006.01);
U.S. Cl.
CPC ...
Abstract

Object: To provide a small-sized, durable metal mold structure capable of casting two cylinder blocks at a time. Solution: A metal mold structure for casting two cylinder blocks W at a time, comprises left and right inner slide coresbeing interposed between two cylinder blocks W, hydraulic cylinder unitsadapted to move each of these left and right inner slide cores, inclined holesbeing provided in each of the left and right inner slide cores, and inclined pinsbeing provided on a fixed moldand inserted into the inclined holeswith a predetermined clearance C, Cmaintained respectively, wherein, when the fixed moldis operated, each of the inclined pinspushes a wall surface of the inclined holein such a way as to move the left and right inner slide coresin a mold opening direction respectively. Preferably, the clearances C, Care different with respect to the left and right inner slide cores


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