MORTAR BODY AND MILL DEVICE - JAPAN PORLEX & CO LTD

Title:

MORTAR BODY AND MILL DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/217500

Kind Code:

A1

Abstract:

A mortar body is provided with an inner mortar part (20) and an outer mortar part (30), and second opening depression parts (33) and second opening protrusion parts (34) are formed in the inner-side surface of the outer mortar part (30). The second opening depression parts (33) are in groups of three opening depression parts having mutually different surface areas, and this group is repeated. A second opening medium depression part (33B) is positioned adjacent to a second opening large depression part (33A), a second opening small depression part (33C) is positioned adjacent to the second opening medium depression part (33B), another second opening large depression part (33A) is positioned adjacent to the second opening small depression part (33C), and this positioning is repeated. The second opening protrusion parts (34) are constituted by repeated groups of three opening protrusion parts having mutually different protrusion part angles. A second opening medium protrusion part (34B) is positioned adjacent to a second opening small protrusion part (34A), a second opening large protrusion part (34C) is positioned adjacent to the second opening medium protrusion part (34B), another second opening small protrusion part (34A) is positioned adjacent to the second opening large protrusion part (34C), and this positioning is repeated.

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Inventors:

KANAZAWA KAZUHIKO (JP)

Application Number:

PCT/JP2019/018095

Publication Date:

October 29, 2020

Filing Date:

April 26, 2019

Export Citation:

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Assignee:

JAPAN PORLEX & CO LTD (JP)

International Classes:

A47J42/22; A47J42/10; A47J42/38

Foreign References:

JP2002263011A	2002-09-17
CN202234916U	2012-05-30
DE29506788U1	1995-08-17
JP2017501761W

Other References: