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公开(公告)号：US11317571B2
公开(公告)日：2022-05-03
申请号：US16963867
申请日：2019-01-18
申请人： Enplas Corporation
发明人： Kazuma Yanagisawa , Koki Ono
摘要： An emitter provided with: a water intake part that communicates with the interior of a tube when the emitter is joined to the tube; a pressure-reducing flow channel part for forming a pressure-reducing flow channel; a flow rate adjustment part for adjusting the flow rate of the irrigation liquid in accordance with the pressure of the irrigation liquid inside the tube; and a discharge part that faces a discharge opening. The flow rate adjustment part has: a base; an accommodation part that accommodates the base; a communication hole that opens to the base and communicates with the discharge part; and a diaphragm part that is flexible and is disposed so as to be separated from the base, the diaphragm part approaching the base when the pressure of the irrigation liquid inside the tube is received.
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公开(公告)号：US11310969B2
公开(公告)日：2022-04-26
申请号：US17059230
申请日：2019-05-22
申请人： Enplas Corporation
发明人： Kazuma Yanagisawa , Koki Ono
IPC分类号： A01G25/02
摘要： This emitter has an emitter body and a pedestal. The emitter body includes: a water intake part for introducing irrigation liquid; a pressure reducing flow passage groove which is for forming a pressure reducing flow passage which communicates with the water intake part and allows the irrigation liquid to flow out while reducing the pressure of the irrigation liquid; an accommodation part which communicates with the pressure reducing flow passage groove and into which the irrigation liquid flows while the pedestal is accommodated therein; and a flexible diaphragm part which approaches the pedestal upon receiving the pressure of the irrigation liquid inside a tube while the pedestal is accommodated in the accommodation part. The pedestal has through-holes for discharging the irrigation liquid that flowed into the accommodation part. The emitter body and the pedestal are connected through a hinge part.
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公开(公告)号：US10066725B2
公开(公告)日：2018-09-04
申请号：US15677396
申请日：2017-08-15
申请人： Enplas Corporation
摘要： Plural ejector pins are made to project before a molten resin containing reinforcing fibers is injected into an inside of a cavity through pin point gates in a web forming portion in the inside of the cavity and at positions outside the pin point gates in a radial direction. The ejector pins are retracted from the inside of the cavity after a flow of the molten resin containing reinforcing fibers injected into the inside of the cavity through the pin point gates impinges on the ejector pins and is divided and before a tooth portion forming portion in the inside of the cavity is filled with the molten resin containing reinforcing fibers. Accordingly, weld lines which extend along the radial direction are formed at positions outside the ejector pins in the radial direction, and the molten resin is filled in portions formed after the ejector pins are retracted.
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公开(公告)号：US11116152B2
公开(公告)日：2021-09-14
申请号：US16463045
申请日：2017-11-02
申请人： Enplas Corporation
发明人： Kazuma Yanagisawa
摘要： This emitter comprises: an emitter body having a groove, a recess and a through hole on the upper surface thereof; and a film joined to the upper surface. This drip irrigation tube comprises: a tube; a discharge opening that is a hole extending through a wall of the tube; and an emitter joined to an inner wall surface of the tube at a position of the inner wall surface corresponding to the discharge opening.
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公开(公告)号：US10738870B2
公开(公告)日：2020-08-11
申请号：US15111603
申请日：2015-01-15
申请人： Enplas Corporation
发明人： Kazuma Yanagisawa
IPC分类号： F16H55/06 , B29C45/16 , B29C45/00 , F16H55/17 , B29L15/00 , B29K77/00 , B29K81/00 , B29K307/04 , B29K309/08
摘要： A two-color molding method in which, when a secondary molded body is formed by covering the surface of a primary molded body made of a reinforcing-fiber-containing synthetic resin material with a reinforcing-fiber-free synthetic resin material, these synthetic resin materials may differ and the production cost does not increase. When a primary molded body is formed by injecting a molten reinforcing-fiber-containing synthetic resin material into a primary molding cavity, the molten reinforcing-fiber-containing synthetic resin material flows from one end toward the other end of the primary molding cavity and a short shot is performed. This exposes reinforcing fiber in a tooth of the primary molded body positioned at the other end of the primary molding cavity. In the secondary molding cavity, the tooth in which the reinforcing fiber is exposed is covered with a reinforcing-fiber-free synthetic resin material to form a synthetic resin gear as a two-color molded body.
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公开(公告)号：US09772023B2
公开(公告)日：2017-09-26
申请号：US14324356
申请日：2014-07-07
申请人： Enplas Corporation
CPC分类号： F16H55/06 , B29C45/0005 , B29C45/0025 , B29C45/2708 , B29C45/40 , B29C45/401 , B29C2045/0006 , B29C2045/0043 , B29C2045/0049 , B29K2105/14 , B29L2015/003 , F16H2055/065 , Y10T74/1987
摘要： Plural ejector pins are made to project before a molten resin containing reinforcing fibers is injected into an inside of a cavity through pin point gates in a web forming portion in the inside of the cavity and at positions outside the pin point gates in a radial direction. The ejector pins are retracted from the inside of the cavity after a flow of the molten resin containing reinforcing fibers injected into the inside of the cavity through the pin point gates impinges on the ejector pins and is divided and before a tooth portion forming portion in the inside of the cavity is filled with the molten resin containing reinforcing fibers. Accordingly, weld lines which extend along the radial direction are formed at positions outside the ejector pins in the radial direction, and the molten resin is filled in portions formed after the ejector pins are retracted.
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