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1. 发明授权

US10953476B2 Chuck device 有权
公开(公告)号：US10953476B2
公开(公告)日：2021-03-23
申请号：US16609770
申请日：2018-04-04
申请人： SANOH INDUSTRIAL CO., LTD.
发明人： Jining Liu , Kazuhiko Nakazato
IPC分类号： B23B31/30 , B23B31/117 , B23B31/08
摘要： A chuck device that allows easy attachment of a clamping target component and can provide powerful and highly reliable clamping includes a main body including a metal core part and an annular space coaxial with and formed around the metal core part; a rubber elastic body fitted in the annular space of the main body such that there is a pressure chamber between a circumferential wall that defines the annular space and the rubber elastic body, and a clearance for allowing a tubular clamping target component to be inserted between the rubber elastic body and the metal core part; and a passage for introducing a fluid to the pressure chamber, wherein the rubber elastic body is deformed to expand toward the metal core part by a pressure of a fluid introduced to the pressure chamber via the passage so that a tubular clamping target component that is attached to the metal core part is clamped by the metal core part and the rubber elastic body that has deformed to expand.

2. 发明授权

US10821656B2 Pipe end processing device 有权
公开(公告)号：US10821656B2
公开(公告)日：2020-11-03
申请号：US16609781
申请日：2018-04-23
申请人： SANOH INDUSTRIAL CO., LTD.
发明人： Jining Liu , Kazuhiko Nakazato
IPC分类号： B29C57/00 , B29C57/02 , B29C57/06 , B29L23/00
摘要： A pipe end processing device includes a female die and a male die. The female die has a through hole with one side thereof being radially increased, the through hole having the molding surface for forming the protrusion formed on an inner circumference on the one side of the through hole. The male die includes a metal core passed through the through hole of the female die and configured to be axially moved, and a tubular elastic body fitted on one end part of the metal core and protruding from the one side of the female die. The tubular elastic body is configured to be axially compressed by a movement of the metal core to radially expand by deformation thereby to press the surface to be processed of the pipe against the molding surface of the female die.

3. 发明授权

US11465190B2 Bending die 有权
公开(公告)号：US11465190B2
公开(公告)日：2022-10-11
申请号：US16961012
申请日：2018-09-25
申请人： SANOH INDUSTRIAL CO., LTD.
发明人： Guang Ping Lan , Kazuhiko Nakazato
IPC分类号： B21D11/02 , B21D7/024 , B29C53/08 , B21D5/01 , B21D7/06
摘要： An object of the present invention is to provide a bending die that has a simple configuration and is capable of bending a rod-shaped body in a three-dimensional XYZ direction quickly and reliably, the bending die comprising a pair of forming dies clamped in a Z direction, wherein the forming dies have, respectively, rod-shaped body-forming recess portions, and rod-shaped body guide portions for guiding a rod-shaped body to the rod-shaped body-forming recess portions, the rod-shaped body-forming recess portions are each formed into a shape with a semicircular cross section that defines, between the forming dies when clamping the forming dies, a long, cylindrical cavity for forming the rod-shaped body bent in a three-dimensional XYZ direction, and the rod-shaped body guide portions are each formed into a V-shape that spreads outward from both sides of each of the rod-shaped body-forming recess portions having a semicircular cross section.

4. 发明授权

US11009169B2 Pipe, die, and method for manufacturing pipe 有权
公开(公告)号：US11009169B2
公开(公告)日：2021-05-18
申请号：US15543913
申请日：2015-11-11
申请人： SANOH INDUSTRIAL CO., LTD.
发明人： Norio Kobayashi , Kazuhiko Nakazato
IPC分类号： F16L43/00 , F16L9/00 , B21D7/025
摘要： A metal pipe including a curved portion produced by bending in which a plurality of non-bending surfaces and a plurality of bent portions at which the non-bending surfaces are connected in a bending manner are provided on a circumferential surface on an inside of a center of a curvature side of the curved portion is provided.

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