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公开(公告)号：US20190077535A1
公开(公告)日：2019-03-14
申请号：US15769020
申请日：2016-09-01
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Yuichi OKUYAMA , Kazuhiko SHIMIZU
Abstract: A synthetic resin container having a bottle shape including a tube-shaped mouth, a tube-shaped trunk having one end closed by a bottom, and a shoulder through which another end of the trunk is connected to the mouth. The shoulder is inclined at an angle greater than 120° with respect to an axis of the mouth, and the shoulder has a crystal orientation in a machine direction of less than 1.
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公开(公告)号：US20220412347A1
公开(公告)日：2022-12-29
申请号：US17904708
申请日：2021-01-28
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Hideaki HOSHINO , Yuichi OKUYAMA
Abstract: A plunger pump, including: a tubular cylinder that has an internal space communicating with inlet and outlet flow paths; and a piston that is movable along an axis of the cylinder, wherein a head of the piston includes, on an outer peripheral surface thereof, a sealing portion that is slidable against an inner peripheral surface of the cylinder, which includes a body tubular portion wherein the head is arranged during normal use, and a cleaning tubular portion wherein the head is arranged during cleaning, an inner peripheral surface of the cleaning tubular portion has an inner diameter equal to that of an inner peripheral surface of the body tubular portion, the cleaning tubular portion includes, on the inner peripheral surface thereof, at least one cleaning liquid circulation groove that is configured by a through hole or recess, and the cleaning liquid circulation groove extends obliquely with respect to the axis.
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公开(公告)号：US20210178651A1
公开(公告)日：2021-06-17
申请号：US16761624
申请日：2018-10-03
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Mitsuru SHIOKAWA , Yuichi OKUYAMA
Abstract: A liquid blow molding method of molding a liquid container containing a content liquid from a preform, includes a nozzle engagement step of engaging a blow nozzle with a mouth portion of the preform; a molding step of molding the preform into a container of a predetermined shape by supplying a pressurized liquid into the preform; a suck-back step of sucking back a predetermined amount of liquid from the inside of the container to a supply channel by operating a pump in a reverse direction with the container put in the upside-down posture while the blow nozzle is engaged with the mouth portion; and a nozzle separation step of separating the blow nozzle from the mouth portion with the container put in the upright posture.
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公开(公告)号：US20210060845A1
公开(公告)日：2021-03-04
申请号：US16965241
申请日：2018-11-13
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Mitsuru SHIOKAWA , Hideaki HOSHINO , Yuichi OKUYAMA
Abstract: A liquid blow molding device includes: a supply block including a supply path; a blow nozzle detachably attached to the supply block; a pressurized liquid supply unit configured to supply the pressurized liquid to the blow nozzle; an annular-shaped sealing surface that is provided in a portion of the supply block that is located between an inner circumferential surface defining the supply path and the outlet and that surrounds an entire circumference of the outlet; and a sealing body that is disposed inside the supply path and that is displaceable between a closing position, in which the sealing body abuts against the sealing surface to close the outlet, and an opening position, in which the sealing body is spaced from the sealing surface to open the outlet.
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公开(公告)号：US20200331186A1
公开(公告)日：2020-10-22
申请号：US16760384
申请日：2018-10-03
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Mitsuru SHIOKAWA , Yuichi OKUYAMA
Abstract: A liquid blow molding method of molding a synthetic resin preform having a mouth portion into a liquid container of a predetermined shape, including: an air-liquid replacement step of supplying a liquid into the preform from the mouth portion through a blow nozzle and discharging the air inside the preform to the outside; an air-liquid separation step of separating the air from the liquid inside the preform by vibrating the preform; and a blow molding step of molding the preform into a container of a predetermined shape by supplying a pressurized liquid into the preform from the mouth portion through the blow nozzle, after the air-liquid separation step.
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Patent Agency Ranking
公开(公告)号：US20200156302A1
公开(公告)日：2020-05-21
申请号：US16604525
申请日：2018-01-23
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Hideaki HOSHINO , Shinichi TABATA , Yuichi OKUYAMA , Shigeki MORIKAMI
Abstract: A liquid container manufacturing method includes: a nozzle fitting step of fitting a blow nozzle into a mouth of a preform; a liquid replacing step of replacing the air in the preform with a liquid by supplying a predetermined amount of liquid from a liquid supply port to the preform with a discharge port open; and a liquid blow molding step of molding the preform into a liquid container by supplying a pressurized liquid from the liquid supply port into the preform after the discharge port is closed.
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公开(公告)号：US20190248062A1
公开(公告)日：2019-08-15
申请号：US16340368
申请日：2017-08-09
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Mitsuru SHIOKAWA , Yuichi OKUYAMA
Abstract: A liquid blow molding device includes a cylindrical nozzle having, at a lower end thereof, a seal surface that, when the nozzle is inserted into a mouth part, abuts on a step surface provided at an inner circumferential surface of a preform in an axial direction to seal a gap between the nozzle and the inner circumferential surface of the preform. The preform has, at the inner circumferential surface thereof, the step surface to be abutted on by the seal surface of the nozzle in the axial direction. The step surface is tapered to be higher on a radial inner side than on a radial outer side.
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18.发明申请公开(公告)号：US20200324931A1
公开(公告)日：2020-10-15
申请号：US16958799
申请日：2018-11-01
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Hiroshi HOSOKOSHIYAMA , Yuichi OKUYAMA , Junichi CHIBA
Abstract: A synthetic resin-made container has an outer layer body and an inner layer body separably laminated on an inner surface of the outer layer body and is formed by stretch blow molding, and has: a tubular mouth portion; a shoulder portion located below the mouth portion and increasing in diameter downward; a barrel portion connected to and located below the shoulder portion; and a bottom portion closing a lower end of the barrel portion, wherein the mouth portion has an outside air introduction hole for introducing outside air into a space between the outer layer body and the inner layer body, and the inner layer body is made of a crystalline resin, and has, in at least a part of the mouth portion in the inner layer body, a crystallized region having a higher degree of crystallinity than other regions.
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公开(公告)号：US20200307062A1
公开(公告)日：2020-10-01
申请号：US16765566
申请日：2018-10-03
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Mitsuru SHIOKAWA , Yuichi OKUYAMA
Abstract: A liquid blow molding method of molding a synthetic resin preform having a mouth portion into a liquid container of a predetermined shape, the method including: an air-liquid replacement step of exhausting the air inside the preform to the outside while a liquid is supplied into the preform from the mouth portion through a blow nozzle; an air-liquid separation step of separating the air from the liquid inside the preform by rotating the preform about an axial center of the mouth portion; and a blow molding step of molding the preform into a container of a predetermined shape by supplying a pressurized liquid into the preform from the mouth portion through the blow nozzle, after the air-liquid separation step.
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公开(公告)号：US20200047395A1
公开(公告)日：2020-02-13
申请号：US16340632
申请日：2017-08-09
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Yuichi OKUYAMA , Mitsuru SHIOKAWA , Hiroki MURAKAMI
Abstract: A liquid blow molding method of molding a preform into a liquid-containing container includes: a first nozzle descending step of descending a blow nozzle to a first position at which the blow nozzle does not seal the mouth part; a gas-liquid replacement step of supplying a liquid into the preform from the blow nozzle at the first position and discharging air inside the preform to outside; a second nozzle descending step of descending the blow nozzle to a second position at which the blow nozzle seals the mouth part, after the gas-liquid replacement step; and a blow molding step of supplying the liquid into the preform from the blow nozzle at the second position to blow mold the preform into the predetermined shape.
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