公开(公告)号：US11959500B2

公开(公告)日：2024-04-16

申请号：US17640498

申请日：2020-08-03

Applicant: SMC CORPORATION

Inventor： Youji Takakuwa ,  Akihiro Kazama ,  Hiroyuki Asahara ,  Kengo Monden

IPC: F15B11/04 ,  F15B11/06 ,  F15B15/14 ,  F15B15/20 ,  F15B15/22

CPC classification number: F15B15/1433 ,  F15B11/0413 ,  F15B15/204 ,  F15B15/22 ,  F15B11/06 ,  F15B2211/30505 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/40515 ,  F15B2211/40584 ,  F15B2211/40592 ,  F15B2211/7053 ,  F15B2211/75 ,  F15B2211/8855

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：US11773879B2

公开(公告)日：2023-10-03

申请号：US17640237

申请日：2020-08-03

Applicant: SMC CORPORATION

Inventor： Youji Takakuwa ,  Akihiro Kazama ,  Hiroyuki Asahara ,  Kengo Monden

IPC: F15B15/22 ,  F15B11/06 ,  F15B13/04 ,  F15B13/02 ,  F15B11/04 ,  G05D7/01 ,  F15B15/20

CPC classification number: F15B15/22 ,  F15B11/0413 ,  F15B11/06 ,  F15B13/027 ,  F15B13/0401 ,  F15B15/204 ,  F15B2211/30505 ,  F15B2211/40515 ,  F15B2211/40584 ,  F15B2211/40592 ,  F15B2211/41527 ,  F15B2211/473 ,  F15B2211/6355 ,  F15B2211/67 ,  F15B2211/7053 ,  F15B2211/75 ,  F15B2211/8855 ,  G05D7/014

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：US11261885B2

公开(公告)日：2022-03-01

申请号：US17227499

申请日：2021-04-12

Applicant: SMC CORPORATION

Inventor： Youji Takakuwa ,  Hiroyuki Asahara ,  Seiichi Nagura

IPC: F15B15/14 ,  F15B15/20

Abstract: A fluid pressure cylinder includes a first cylinder portion and a second cylinder portion disposed in parallel, and a supply-and-discharge port. The first cylinder portion is partitioned by a first piston into a head-side first accumulation chamber and a rod-side second accumulation chamber. The second cylinder portion is partitioned by a second piston into a head-side release chamber and a rod-side drive chamber. Pressurized fluid is supplied to and discharged from the second accumulation chamber and the drive chamber through the supply-and-discharge port. An end of a first piston rod connected to the first piston and an end of a second piston rod connected to the second piston are connected to each other. The first piston includes a communication switching valve switching communication between the first accumulation chamber and the second accumulation chamber, between enabled and disabled.

公开(公告)号：US12000413B2

公开(公告)日：2024-06-04

申请号：US17640724

申请日：2020-08-03

Applicant: SMC CORPORATION

Inventor： Youji Takakuwa ,  Akihiro Kazama ,  Hiroyuki Asahara ,  Kengo Monden

IPC: F15B15/14 ,  F15B11/072 ,  F15B13/02 ,  F15B15/22 ,  F15B13/04

CPC classification number: F15B11/072 ,  F15B13/028 ,  F15B15/1428 ,  F15B15/1447 ,  F15B15/226 ,  F15B13/0402 ,  F15B2211/329 ,  F15B2211/6355

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：US11946493B2

公开(公告)日：2024-04-02

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 ,  F15B11/04 ,  F15B13/02

CPC classification number: F15B11/068 ,  F15B11/0413 ,  F15B13/027 ,  F15B2211/30505 ,  F15B2211/40515 ,  F15B2211/40584 ,  F15B2211/40592 ,  F15B2211/7053 ,  F15B2211/75 ,  F15B2211/8855

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：USD948579S1

公开(公告)日：2022-04-12

申请号：US29768071

申请日：2021-01-27

Applicant: SMC CORPORATION

Designer： Hiroyuki Asahara

公开(公告)号：US10927857B2

公开(公告)日：2021-02-23

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: F15B11/02 ,  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：USD770595S1

公开(公告)日：2016-11-01

申请号：US29487672

申请日：2014-04-10

Applicant: SMC CORPORATION

Designer： Yasunaga Suzuki ,  Hiroyuki Asahara ,  Naoki Shinjo

公开(公告)号：US11835070B2

公开(公告)日：2023-12-05

申请号：US17624127

申请日：2020-06-08

Applicant: SMC CORPORATION

Inventor： Mitsuru Machijima ,  Hiroyuki Asahara ,  Aki Iwamoto ,  Shiori Iwatsuki

IPC: F15B15/28 ,  F15B15/14 ,  G01D11/30

CPC classification number: F15B15/2892 ,  F15B15/1428 ,  F15B15/2815 ,  F15B15/1433 ,  F15B15/28 ,  F15B15/2807 ,  G01D11/30

Abstract: A fluid pressure cylinder has a sensor attachment tool mounted thereon. A holder holds the position sensor in a rail structure extending in an axial direction of a cylinder tube and is secured by screwing to a rod cover or a head cover in an arm part provided to one end of the holder.

公开(公告)号：US11519430B2

公开(公告)日：2022-12-06

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 ,  F16K11/07 ,  F16K31/122

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.