公开(公告)号：US20190388924A1

公开(公告)日：2019-12-26

申请号：US16481736

申请日：2018-01-30

Applicant: ENPLAS CORPORATION

Inventor： Kazuma YANAGISAWA ,  Atsushi TAKAHASHI

IPC: B05B12/08 ,  A01G25/02

Abstract: The present invention aims to provide an emitter and a drip irrigation tube that can suppress the variations in the discharge amount of the liquid caused by pressure fluctuations of the liquid in the drip irrigation tube. The emitter of the present invention is to be disposed on an inner wall of a tube including a discharge port, for regulating discharge of irrigation liquid from an inside of the tube to an outside of the tube via the discharge port. The emitter includes an intake portion; a regulating unit; a discharge portion; and a flow path. The regulating unit includes a recess; and a film, the film is fixed in a state of covering an inner space of the recess, a region of the film covering the inner space of the recess is a diaphragm portion, the recess has a through hole inside thereof on its bottom surface, the through hole of the recess communicates with the discharge portion, the recess has a slit communicating with the through hole on its bottom surface, and an edge portion forming an upper surface-side opening of the through hole on the bottom surface of the recess, except for the slit, is a valve seat portion for the film. In a state where the emitter is disposed in the tube, when no liquid is present in the tube, the diaphragm portion of the film is not in contact with the valve seat portion, and when the liquid is present in the tube, the diaphragm portion of the film can be in contact with the valve seat portion in accordance with a pressure of the liquid. The diaphragm portion of the film comes into contact with an entire valve seat portion with a time difference.

公开(公告)号：US20160327145A1

公开(公告)日：2016-11-10

申请号：US15111603

申请日：2015-01-15

Applicant: ENPLAS CORPORATION

Inventor： Kazuma YANAGISAWA

IPC: F16H55/06 ,  B29C45/00 ,  B29C45/16 ,  F16H55/17

CPC classification number: F16H55/06 ,  B29C45/0005 ,  B29C45/16 ,  B29C45/1615 ,  B29K2077/00 ,  B29K2081/04 ,  B29K2307/04 ,  B29K2309/08 ,  B29K2995/0021 ,  B29L2015/003 ,  F16H55/17

Abstract: [Object]To provide 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 from each other and the production cost is prevented from increasing.[Solution]When a primary molded body 2 is formed by injecting a molten reinforcing-fiber-containing synthetic resin material 2a into a primary molding cavity 12, the molten reinforcing-fiber-containing synthetic resin material 2a is caused to flow from one end toward the other end of the primary molding cavity 12 and a short shot is performed. This exposes reinforcing fiber in a tooth 7 of the primary molded body 2 positioned at the other end of the primary molding cavity 12. In the secondary molding cavity, the tooth 7 in which the reinforcing fiber is exposed is covered with a reinforcing-fiber-free synthetic resin material (covering material) 13 to form a synthetic resin gear 1 as a two-color molded body.

Abstract translation: 当通过将熔融的含增强纤维的合成树脂材料2a注入到初级模制腔12中而形成一次成型体2时，使含熔融增强纤维的合成树脂材料2a从一端向另一端流动 并且进行短镜。 这使得增强纤维在位于一次成型腔12的另一端的一次成型体2的齿7中露出。在第二成型腔中，增强纤维露出的齿7覆盖有增强纤维 - 自由合成树脂材料（覆盖材料）13，以形成作为双色成型体的合成树脂齿轮1。

公开(公告)号：US20210204494A1

公开(公告)日：2021-07-08

申请号：US17059230

申请日：2019-05-22

Applicant: Enplas Corporation

Inventor： Kazuma YANAGISAWA ,  Koki ONO

IPC: A01G25/02

Abstract: 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.

公开(公告)号：US20180003281A1

公开(公告)日：2018-01-04

申请号：US15677396

申请日：2017-08-15

Applicant: Enplas Corporation

Inventor： Masaomi HASHIMOTO ,  Kazuma YANAGISAWA

IPC: F16H55/06 ,  B29C45/00 ,  B29C45/40 ,  B29L15/00 ,  B29C45/27 ,  B29K105/14

CPC classification number: 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

Abstract: 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.

公开(公告)号：US20210037726A1

公开(公告)日：2021-02-11

申请号：US16963867

申请日：2019-01-18

Applicant: Enplas Corporation

Inventor： Kazuma YANAGISAWA ,  Koki ONO

IPC: A01G25/02 ,  A01G25/06

Abstract: 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.

公开(公告)号：US20180112640A1

公开(公告)日：2018-04-26

申请号：US15573645

申请日：2016-05-11

Applicant: ENPLAS CORPORATION

Inventor： Kazuma YANAGISAWA

IPC: F02M61/18

CPC classification number: F02M61/1853 ,  B05B1/3421 ,  F02M61/162 ,  F02M61/163 ,  F02M61/18 ,  F02M61/1806 ,  F02M61/1846

Abstract: A nozzle plate for a fuel injection device opposes a fuel injection port of a fuel injection device. A nozzle hole through which fuel injected from the fuel injection port passes is formed at the nozzle plate. At this nozzle plate for the fuel injection device, the nozzle hole has a fuel-flow-in-side opening end with a circular shape. The nozzle hole is coupled to the fuel injection port via fuel guide channels. The fuel guide channels have an opening into the nozzle hole, and a pair of opposing channel sidewalls. The opening has a channel width smaller than a hole diameter of the nozzle hole. One of the opposing channel sidewalls is formed to extend in a tangential direction of the nozzle hole. The fuel is directly flowed into the nozzle hole to generate a flow of the fuel in a spiral pattern in the nozzle hole.

公开(公告)号：US20210037727A1

公开(公告)日：2021-02-11

申请号：US16965613

申请日：2019-01-28

Applicant: Enplas Corporation

Inventor： Kazuma YANAGISAWA ,  Koki ONO

IPC: A01G25/02 ,  B05B1/30

Abstract: An emitter comprises: an emitter main body; and a discharge amount adjustment unit that adjusts the amount of irrigation liquid discharged from the discharge opening of a tube. The discharge amount adjustment unit has a diaphragm part formed integrally with the emitter main body in a position facing the inner wall surface of the tube when the emitter is joined to the inner wall surface, the diaphragm part deforming in accordance with the pressure of the irrigation fluid inside the tube. The diaphragm part has a discharge amount securing part on the surface of the side facing the inner wall surface, the discharge amount securing part securing the discharge of irrigation fluid from the discharge opening at or above a fixed amount, even if the diaphragm part deforms and adheres to the inner wall surface.

公开(公告)号：US20190274264A1

公开(公告)日：2019-09-12

申请号：US16463045

申请日：2017-11-02

Applicant: Enplas Corporation

Inventor： Kazuma YANAGISAWA

IPC: A01G25/02 ,  A01G25/16 ,  B05B1/30

Abstract: 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.

公开(公告)号：US20150007680A1

公开(公告)日：2015-01-08

申请号：US14324356

申请日：2014-07-07

Applicant: Enplas Corporation

Inventor： Masaomi HASHIMOTO ,  Kazuma YANAGISAWA

IPC: F16H55/06 ,  B29C45/00 ,  B29C45/40 ,  F16H55/17

CPC classification number: 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

Abstract: A plurality of ejector pins are made to project before a molten resin containing reinforcing fibers is injected into the 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 the radial direction. The plurality of ejector pins are retracted from the inside of the cavity after the flow of the molten resin containing reinforcing fibers injected into the inside of the cavity through the pin point gates impinges on the plurality of 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.

Abstract translation: 在将含有增强纤维的熔融树脂通过在空腔的内部的网状物形成部分中的针点浇口注入到空腔的内部并且在径向的引脚点浇口外的位置处，使多个顶针突出 方向。 在通过注射点注射到空腔内部的包含增强纤维的熔融树脂的流动撞击到多个顶针之后，多个推出销从空腔的内部缩回，并且在齿部分 在空腔的内部的形成部分填充有包含增强纤维的熔融树脂。 因此，沿着径向延伸的焊接线在径向方向上形成在顶出销的外侧的位置，并且熔融树脂填充在顶出销缩回后形成的部分。

公开(公告)号：US20200093076A1

公开(公告)日：2020-03-26

申请号：US16619749

申请日：2018-05-28

Applicant: ENPLAS CORPORATION

Inventor： Kazuma YANAGISAWA

IPC: A01G25/02

Abstract: The present invention aims to provide an emitter and a drip irrigation tube that can suppress the variations in the discharge amount of the liquid caused by the temperature of the liquid in the drip irrigation tube. The emitter (120) of the present invention is disposed on an inner wall of a tube (110) including a discharge port (112), for regulating discharge of irrigation liquid from an inside of the tube (110) to an outside of the tube (110) via the discharge port (112). The emitter (120) includes an intake portion; a regulating unit; a discharge portion; and a flow path. The regulating unit includes: a recess; and a film. The film is fixed in a state of covering an inner space of the recess, and a region of the film covering the inner space of the recess is a diaphragm portion. The flow path has a decompression region for decompressing the taken-in liquid, the decompression region has a serpentine shape, and in the decompression region, a fluctuation ratio of a cross-sectional area in a direction perpendicular to an axial direction is within a range of 1±0.1 with reference to a smallest cross-sectional area.