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：US20210301839A1

公开(公告)日：2021-09-30

申请号：US17210569

申请日：2021-03-24

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Kazufumi WAKI

IPC: F15B11/032

Abstract: A pressure-booster output stabilizer includes: a first cylinder having therein a first chamber and a second chamber separated by a first piston; a second cylinder having therein a third chamber and a fourth chamber separated by a second piston; and a piston rod configured to couple the first piston and the second piston. The primary pressure of a pressure booster is supplied to the first chamber, the secondary pressure of the pressure booster is supplied to the fourth chamber, and the pressurized fluid is taken out from the fourth chamber.

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：US20180112689A1

公开(公告)日：2018-04-26

申请号：US15565909

申请日：2016-02-29

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Mitsuru MACHIJIMA

IPC: F15B15/28

CPC classification number: F15B15/2892 ,  F16B2/08

Abstract: A sensor attachment tool is provided with a rail-shaped sensor holder having a sensor insertion groove for accommodatably holding a position sensor so that the position of the position sensor can be adjusted, a band part linkable at both ends to the sensor holder and configured so as to be fitted over the outer peripheral surface of a cylinder tube along the peripheral direction, and a tightening mechanism for tightening the band part, the tightening mechanism being arranged on the outer peripheral surface of the cylinder tube in a different peripheral position than the sensor holder.

公开(公告)号：US20160369863A1

公开(公告)日：2016-12-22

申请号：US14901280

申请日：2014-03-20

Applicant: SMC CORPORATION

Inventor： Eiko MIYASATO ,  Tsuyoshi MITA ,  Kodai YOSHINAGA ,  Youji TAKAKUWA ,  Junya KANEKO

IPC: F16F13/00 ,  F16F9/36 ,  F16F9/38 ,  F16F9/32

CPC classification number: F16F13/007 ,  F16F9/19 ,  F16F9/3221 ,  F16F9/3278 ,  F16F9/36 ,  F16F9/38 ,  F16F2230/30

Abstract: A shock absorber includes a cylinder housing including a piston chamber in which oily liquid is disposed, a piston movable in the piston chamber, a rod connected to the piston and protruding out from the cylinder housing, and a return mechanism for the rod. In the shock absorber, a cylindrical bearing made of a synthetic resin having a shock-absorbing property, a dust collecting member for avoiding entry of dust particles, and a lubricating member for supplying a lubricating oil to a surface of the rod are disposed in a rod guiding hole in the cylinder housing. A leading end of the bearing protrudes outside with respect to an outer end surface of the cylinder housing and acts as a contact portion that allows a moving object to come into contact therewith, and thus the bearing functions to guide the rod and also functions as a stopper for avoiding the moving object from coming into contact with the outer end surface of the cylinder housing.

Abstract translation: 减震器包括：气缸壳体，其包括其中设置有油性液体的活塞室，可在活塞室中移动的活塞，连接到活塞并从气缸壳体突出的杆以及用于杆的返回机构。 在减震器中，由具有减震性的合成树脂制成的圆柱形轴承，用于避免灰尘颗粒进入的集尘构件和用于将润滑油供应到杆的表面的润滑构件设置在 缸体中的杆导向孔。 轴承的前端相对于气缸壳体的外端面向外突出，并且作为允许移动体与其接触的接触部分，因此轴承用于引导杆并且还用作 止动件，用于避免运动物体与气缸壳体的外端表面接触。

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：US20210388855A1

公开(公告)日：2021-12-16

申请号：US17341455

申请日：2021-06-08

Applicant: SMC CORPORATION

Inventor： Youji TAKAKUWA ,  Naoki SHINJO ,  Akihiro KAZAMA

IPC: F15B15/22

Abstract: A gas cylinder includes supply passages for supplying, to an accommodation chamber, a part of gas supplied to a second port. When the pressure in a first pressure chamber is equal to or lower than a prescribed pressure, a valve element closes a discharge flow passage by the biasing force of a spring member and the pressure in the accommodation chamber. When the pressure in the first pressure chamber exceeds the prescribed pressure, the valve element is moved by the pressure in the first pressure chamber, against the biasing force and the pressure in the accommodation chamber, to thereby open the discharge flow passage.

公开(公告)号：US20210317850A1

公开(公告)日：2021-10-14

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：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.