公开(公告)号：US20200072377A1

公开(公告)日：2020-03-05

申请号：US16555793

申请日：2019-08-29

Applicant: CKD CORPORATION

Inventor： Shinji ITOH

IPC: F16K31/06

Abstract: An electromagnetic valve has a solenoid, which includes a coil, a plunger, a fixed core, and a plunger spring. The fixed core is E-shaped and has a base, a first outer leg, a second outer leg, and a central leg. The first outer leg, the second outer leg, and the central leg extend from the base. The first outer leg has a first outer attraction surface configured to attract the plunger. The second outer leg has a second outer attraction surface configured to attract the plunger. The central leg has a central attraction surface configured to attract the plunger. The central attraction surface is larger in area than each of the first and second outer attraction surfaces.

公开(公告)号：US20230235758A1

公开(公告)日：2023-07-27

申请号：US18156724

申请日：2023-01-19

Applicant: CKD CORPORATION

Inventor： Shinji ITOH ,  Chenghua XUE

IPC: F15B13/08

CPC classification number: F15B13/0821 ,  F15B13/0828

Abstract: An electromagnetic valve manifold includes spacers and pressure reducing valves. Each spacer includes an attachment surface to which a body of the pressure reducing valve is attached. The body includes a first surface, a second surface, and a connecting surface, which connects the first and second surfaces to each other. A pressure gauge is provided on the connecting surface. The width of the body is smaller than the size of the pressure gauge in the width direction of the body. The bodies include one or more first bodies and one or more second bodies. The first surface of each first body is attached to the attachment surface. The second surface of each second body is attached to the attachment surface of one of the spacers different from the spacer to which the first body is attached. The first bodies and the second bodies are arranged alternately in the arrangement direction.

公开(公告)号：US20220412480A1

公开(公告)日：2022-12-29

申请号：US17846382

申请日：2022-06-22

Applicant: CKD CORPORATION

Inventor： Takemoto KONDO ,  Kazuya NAKATA ,  Shinji ITOH ,  Yosuke EGUCHI ,  Kiyotoki NATSUME ,  Ikuo OGINO

IPC: F16K31/06 ,  F16K27/00

Abstract: An electromagnetic valve manifold includes valve assemblies arranged in a single direction, each valve assembly including electromagnetic valves arranged in the single direction, a slave station disposed at one of ends of the electromagnetic valve manifold in the single direction, and a valve driving unit disposed in correspondence with each of the valve assemblies. The slave station includes a slave station output port that sends a control signal and valve driving unit power to the valve driving units. The valve driving units each include an electromagnetic valve power input port that receives electromagnetic valve power from an external device and a circuit board configured to control driving of the electromagnetic valves of a corresponding one of the valve assemblies using the control signal and send the electromagnetic valve power to the electromagnetic valves.

公开(公告)号：US20220268369A1

公开(公告)日：2022-08-25

申请号：US17672579

申请日：2022-02-15

Applicant: CKD CORPORATION

Inventor： Shinji ITOH ,  Shotaro HATANAKA ,  Yasunari AZUMA ,  Yasunari ISHIHARA

IPC: F16K27/06 ,  F16K31/06

Abstract: A solenoid unit of an electromagnetic valve includes a coil, a bobbin, a fixed iron core, a movable iron core, an urging spring, a magnetic frame, and a molded plastic part. The magnetic frame includes a frame end wall, two frame arms, and an internal thread hole, to which the fixed iron core is threaded. A tubular projection protrudes from an end face of the frame end wall that is on a side opposite to the bobbin. The projection forms part of the internal thread hole. The molded plastic part includes a molded end wall, which covers the frame end wall, and a molded peripheral wall. The molded end wall includes a connecting hole that is continuous with the internal thread hole. The connecting hole includes a groove in an inner circumferential surface. The groove extends along an outer circumferential surface of the projection.

公开(公告)号：US20230133598A1

公开(公告)日：2023-05-04

申请号：US17978580

申请日：2022-11-01

Applicant: CKD CORPORATION

Inventor： Shinji ITOH ,  Shinichi OKAMOTO ,  Ikuo OGINO

IPC: F16K11/07 ,  F16K35/06

Abstract: An electromagnetic valve manifold includes an electromagnetic valve and a manifold base. The electromagnetic valve includes a manual shaft. The manual shaft is configured to be manually operated to be switched between a first switching position, in which the manual shaft allows movement of the valve member relative to the valve hole, and a second switching position in which the manual shaft restricts movement of the valve member relative to the valve hole. The manual shaft includes a projection that is projected into and retracted from the valve hole. The valve member includes at least one recess in an outer surface of the valve member. The manual shaft is configured such that, in a state in which the manual shaft is located in the second switching position, the projection is projected into the valve hole and engaged with the recess, so as to restrict movement of the valve member.

公开(公告)号：US20190264823A1

公开(公告)日：2019-08-29

申请号：US16284490

申请日：2019-02-25

Applicant: CKD CORPORATION

Inventor： Shinji ITOH ,  Kiyonobu HAYASHI ,  Mitsuhiro KOSUGI

IPC: F16K11/07 ,  F15B13/04 ,  F16K31/06

Abstract: A poppet switch valve device includes a valve body, a first valve rod including a first valve member, a second valve rod including a second valve member, and a solenoid. When a jig engages with an engagement portion of the first valve rod and rotates the first valve rod so that an internally-threaded hole formed in the first valve rod engages with and moves forward and backward relative to an external thread formed on an outer circumferential surface of the second valve rod, the first valve rod is moved relative to the second valve rod in the axial direction. The poppet switch valve device further includes a restriction portion configured to restrict movement of the first valve rod relative to the second valve rod in the axial direction after the first valve rod is moved relative to the second valve rod in the axial direction using the jig.

公开(公告)号：US20180128385A1

公开(公告)日：2018-05-10

申请号：US15801006

申请日：2017-11-01

Applicant: CKD CORPORATION

Inventor： Shinji ITOH ,  Kiyotoki NATSUME ,  Atsushi FUKUTA

IPC: F16K11/07 ,  F16K31/42

CPC classification number: F16K11/0712 ,  F16K27/041 ,  F16K27/048 ,  F16K31/0679 ,  F16K31/426 ,  F16K37/005 ,  Y10T137/8326 ,  Y10T137/86614 ,  Y10T137/87885

Abstract: An electromagnetic valve includes a valve casing, which has a valve hole, a spool valve in the valve hole, first and second output ports each communicating with the valve hole, first and second pressure introduction holes, which respectively communicate with the first and second output ports, first and second pressure sensors, which is respectively fitted in the first and second pressure introduction holes, sealing members, which are arranged between the respective pressure sensors and the pressure introduction holes, first and second substrates, on which the corresponding first and second pressure sensors are mounted, and a housing, which accommodates the first and second substrates, has the first and second pressure introduction holes, and is attached to the valve casing. The first and second substrates are arranged to be opposed to each other in a state of being upright in a direction perpendicular to the movement direction of the spool valve.