US 12,121,958 B2
Centrifugal casting mold and centrifugal casting mold assembly device
Hideki Aizawa, Sagae (JP); Shin Moriyama, Sagae (JP); and Mizuki Yamashita, Sagae (JP)
Assigned to TPR CO., LTD., Tokyo (JP); and TPR INDUSTRY CO., LTD., Sagae (JP)
Appl. No. 18/258,748
Filed by TPR CO., LTD., Tokyo (JP); and TPR INDUSTRY CO., LTD., Sagae (JP)
PCT Filed Dec. 21, 2020, PCT No. PCT/JP2020/047750
§ 371(c)(1), (2) Date Jun. 21, 2023,
PCT Pub. No. WO2022/137298, PCT Pub. Date Jun. 30, 2022.
Prior Publication US 2024/0033815 A1, Feb. 1, 2024
Int. Cl. B22D 13/10 (2006.01); B22D 13/12 (2006.01)
CPC B22D 13/101 (2013.01) [B22D 13/12 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A centrifugal casting mold used for centrifugal casting and including a mold body and a lid member, the mold body being formed in a cylindrical shape, the lid member being detachably assembled to an end part of the mold body in an axial direction, wherein the lid member includes
a lid body that is attached to an opening part formed at an end part of the mold body, a fitting part that is fitted to the mold body, and
an elastic force application part that applies elastic force to the lid body in a direction in which the lid body closely contacts the mold body, wherein a protrusion part protruding outward is formed as the fitting part on an outer peripheral surface of the lid member, a groove part into which the protrusion part of the lid member is inserted is formed at an end part of the mold body, the protrusion part of the lid member is fitted to the groove part of the mold body, and wherein the groove part includes a first extending part and a second extending part, the first extending part having an opening part at an end face of the mold body and formed to extend in a direction parallel to an axial direction of the mold body, the second extending part being formed to extend in a circumferential direction of the mold body from an end part opposite to the opening part of the first extending part, the lid member further includes a movable member including the fitting part, the movable member is formed separately from the lid body and can be displaced relative to the lid body in the axial direction of the mold body, the protrusion part of the lid member is fitted to the second extending part of the groove part, the elastic force application part applies elastic force to the lid body and the movable member in a direction in which the lid body separates from the movable member in the axial direction of the mold body, and the mold has a mechanism that the lid body closely contacts the mold body with the elastic force applied to the lid body by the elastic force application part and the fitting part is pressed to an inner wall surface of the second extending part by the elastic force applied to the movable member by the elastic force application part.