公开(公告)号：US20190277310A1

公开(公告)日：2019-09-12

申请号：US16335046

申请日：2017-09-04

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Hiroyuki ASAHARA ,  Kengo MONDEN ,  Aki IWAMOTO ,  Naoki SHINJO ,  Kazutaka SOMEYA ,  Akihiro KAZAMA

IPC: F15B11/024 ,  F15B1/027 ,  F15B21/14

Abstract: A fluid pressure cylinder driving device includes a switch valve, a high pressure air supply source, an exhaust port and a check valve. When the switch valve is at a first position, a head side cylinder chamber communicates with the high pressure air supply source, and a rod side cylinder chamber communicates with the exhaust port. When the switch valve is at a second position, the head side cylinder chamber communicates with the rod side cylinder chamber via the check valve, and the head side cylinder chamber communicates with the exhaust port.

公开(公告)号：US20210404486A1

公开(公告)日：2021-12-30

申请号：US17292223

申请日：2019-10-30

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Akihiro KAZAMA ,  Hiroyuki ASAHARA ,  Kengo MONDEN

IPC: F15B11/06 ,  F15B11/04 ,  F15B13/04

Abstract: A main flow path that introduces high-pressure air to an air cylinder, or discharges exhaust air therefrom, includes a sub flow path provided alongside the main flow path; an exhaust flow rate adjustment unit that suppresses the operation speed of the air cylinder by adjusting the flow rate of the exhaust air flowing through the sub flow path; and a switching valve that is connected between the air cylinder, the main flow path and the sub flow path, and that connects the main flow path and the sub flow path to the air cylinder in a switching manner. The switching valve is constituted by a spool valve.

公开(公告)号：US20220333619A1

公开(公告)日：2022-10-20

申请号：US17640531

申请日：2020-08-03

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Akihiro KAZAMA ,  Hiroyuki ASAHARA ,  Kengo MONDEN

IPC: F15B11/068 ,  F15B13/02

Abstract: A flow rate controller and a drive device are provided with a first flow passage connected between an operation switching valve and an air cylinder, and that supplies air to and discharges air from a cylinder chamber of the air cylinder; a first flow rate adjustment part provided in the first flow passage; a second flow passage adjacent to the first flow passage; a pilot check valve provided at a point along the second flow passage; a second flow rate adjustment part connected in series to the pilot check valve at a point along the second flow passage; a pilot air flow passage, one end of which communicates with the operation switching valve and the other end of which is connected to a pilot port of the pilot check valve; and a third flow rate adjustment part provided in the pilot air flow passage.

公开(公告)号：US20220333622A1

公开(公告)日：2022-10-20

申请号：US17640754

申请日：2020-08-03

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Akihiro KAZAMA ,  Hiroyuki ASAHARA ,  Kengo MONDEN

IPC: F15B15/14 ,  F15B15/20 ,  F15B15/22

Abstract: An air cylinder in which a flow rate controller is built in, has a head cover and a rod cover. A pilot air adjustment unit guides exhaust air to a switch valve of the flow rate controller as pilot air, and the switch valve is switched by an increase in the pressure of the pilot air.

公开(公告)号：US20220316501A1

公开(公告)日：2022-10-06

申请号：US17640237

申请日：2020-08-03

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Akihiro KAZAMA ,  Hiroyuki ASAHARA ,  Kengo MONDEN

IPC: F15B11/06 ,  G05D7/01 ,  F15B13/02

Abstract: In a flow rate controller and a drive device, a housing is provided therein with a first flow passage, a second flow passage adjacent to the first flow passage, a first throttle valve provided to the first flow passage, and a second throttle valve provided to the second flow passage. A pilot check valve is provided to the second flow passage and is connected in series to the second throttle valve. A pilot air flow passage communicates with a pilot port of the pilot check valve for supplying and discharging pilot air, and a third throttle valve is provided to the pilot air flow passage. In response to the pressure of the pilot air, the pilot check valve switches between a state in which the passage of exhaust air discharged from an air cylinder is permitted and a state in which passage of the exhaust air is prevented.

公开(公告)号：US20210293258A1

公开(公告)日：2021-09-23

申请号：US16462623

申请日：2017-08-17

Applicant: SMC CORPORATION

Inventor： Hiroyuki ASAHARA ,  Kengo MONDEN ,  Naoki SHINJO ,  Seiichi NAGURA ,  Kazutaka SOMEYA

IPC: F15B3/00

Abstract: A first position detection sensor and a second position detection sensor of a pressure booster detect the position of a first piston or a second piston. A fluid supply mechanism supplies a fluid to a first pressure-boosting chamber and/or a second pressure-boosting chamber. On the basis of the detection results of the first position detection sensor and the second position detection sensor, the fluid supply mechanism switches between performing an operation for supplying fluid to a first drive chamber and discharging fluid from a second drive chamber, and performing an operation for discharging fluid from the first drive chamber and supplying fluid to the second drive chamber.

公开(公告)号：US20200025224A1

公开(公告)日：2020-01-23

申请号：US16334943

申请日：2017-09-04

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Hiroyuki ASAHARA ,  Kengo MONDEN ,  Aki IWAMOTO ,  Naoki SHINJO ,  Kazutaka SOMEYA ,  Akihiro KAZAMA

IPC: F15B15/20 ,  F15B11/064

Abstract: A cylinder main body of a fluid pressure cylinder includes a switch valve, a check valve, and a flow path communicating a high pressure air supply source with a head side cylinder chamber and communicating an exhaust port with a rod side cylinder chamber when the switch valve is at a second position. Another flow path communicates the head side cylinder chamber with the rod side cylinder chamber and the exhaust port when the switch valve is at the first position.

公开(公告)号：US20220349426A1

公开(公告)日：2022-11-03

申请号：US17640498

申请日：2020-08-03

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Akihiro KAZAMA ,  Hiroyuki ASAHARA ,  Kengo MONDEN

IPC: F15B15/14 ,  F15B11/04 ,  F15B15/20 ,  F15B15/22

Abstract: The present invention pertains to an air cylinder (10) in which flow rate controllers (24, 24A) are built into a head cover (14) and a rod cover (16), said flow rate controllers (24, 24A) being provided with a first flow rate adjustment part (28) connected between a port (14a, 16a) and a cylinder chamber (12c), a second flow rate adjustment part (32) provided adjacent to the first flow rate adjustment part (28), and a pilot check valve (38) connected in series to the second flow rate adjustment part (32). In response to the pressure of pilot air, the pilot check valve (38) switches between a state in which the passage of exhaust air from the cylinder chamber (12c) is permitted and a state in which the passage of exhaust air is prevented.

公开(公告)号：US20220325728A1

公开(公告)日：2022-10-13

申请号：US17640724

申请日：2020-08-03

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Akihiro KAZAMA ,  Hiroyuki ASAHARA ,  Kengo MONDEN

IPC: F15B11/072 ,  F15B13/02 ,  F15B15/14 ,  F15B15/22

Abstract: A flow rate controller and a drive device are provided with a cylinder flow passage connected to an air cylinder; a main flow passage for supplying air to and discharging air from the air cylinder; an auxiliary flow passage that has a first throttle valve and through which exhaust air discharged from the air cylinder passes with a smaller flow rate than that of the main flow passage; a switch valve that switches between a first position in which the cylinder flow passage communicates with the main flow passage and a second position in which the cylinder flow passage communicates with the auxiliary flow passage; and a pilot air adjustment part that guides a portion of the exhaust air from the air cylinder as pilot air to the switch valve.

公开(公告)号：US20210301838A1

公开(公告)日：2021-09-30

申请号：US17205285

申请日：2021-03-18

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Kengo MONDEN

IPC: F15B3/00 ,  F15B11/032

Abstract: A pressure booster includes a pressure boosting unit and a bypass unit. The pressure boosting unit includes an input port connected to the side of a fluid supply source and an output port connected to the side of a tank. The pressure boosting unit boosts the pressure of a pressurized fluid supplied to the input port and outputs the pressure-boosted pressurized fluid from the output port. The bypass unit includes a bypass flow path having one end connected to the fluid supply source side and the other end connected to the output port side. The bypass flow path is provided with a bypass check valve configured to block the flow of the pressurized fluid from the output port side to the fluid supply source side.