公开(公告)号：US20010020413A1

公开(公告)日：2001-09-13

申请号：US09793575

申请日：2001-02-27

Applicant: SMC Corporation

Inventor： Akihiro Hirano ,  Kenji Koiwa ,  Kiyoshi Takeuchi

IPC: F01B009/00 ,  F15B015/22

CPC classification number: F15B15/065 ,  F01C9/002 ,  F15B15/12 ,  F15B15/224

Abstract: The invention provides a rotary actuator having a rack driven in an oscillating manner by an air pressure, a pinion engaged with the rack, and a cushion mechanism for stopping the rack to at least one normal or inverse stroke end in a cushioning manner. The cushion mechanism has an exhaust port open to a pressure chamber at a position close to a chamber end rather than a port hole, a flow amount adjusting mechanism for restricting a flow amount of the exhaust air discharged from the exhaust port, and a cushion packing mounted to an outer peripheral surface of the piston and operating so as to shut the port hole from the pressure chamber immediately before the piston reaches the stroke end, thereby discharging the air within the pressure chamber through the flow amount adjusting mechanism.

Abstract translation: 本发明提供了一种旋转致动器，其具有通过气压以振荡方式驱动的齿条，与齿条接合的小齿轮以及用于以缓冲方式将齿条停止至少一个正向或反向行程端的缓冲机构。 缓冲机构具有在接近室端而不是端口孔的位置处对压力室开口的排气口，用于限制从排气口排出的排气的流量的流量调节机构和缓冲填料 安装在活塞的外周面上，并且在活塞到达行程端之前使其从压力室关闭，从而通过流量调节机构排出压力室内的空气。

公开(公告)号：US20010029835A1

公开(公告)日：2001-10-18

申请号：US09809194

申请日：2001-03-16

Applicant: SMC CORPORATION

Inventor： Kiyoshi Takeuchi ,  Yoshihiro Takeda ,  Mitsunori Magaribuchi

IPC: F01B031/14

CPC classification number: F15B15/068 ,  F01B3/0079

Abstract: A three-position stop type swing actuator has a main piston freely moving in forward and backward directions in an axial direction within a casing, an output shaft placed at a coaxial position with the main piston in such a manner as to be fixed in an axial direction and freely rotate around an axis, a conversion and transmission mechanism converting a forward and backward motion of the main piston into a rotating and swinging motion of the output shaft, and a sub piston having a stroke smaller than that of the main piston a fluid pressure operating force larger than that of the main piston and arranged within the casing in such a manner as to freely move in the forward and backward directions and be capable of being brought into contact with the main piston so as to restrict a middle stop position of the main piston.

Abstract translation: 三位置止动式摆动致动器具有在壳体内沿轴向自由移动的主活塞，输出轴以与主活塞同轴的方式以轴向方式固定 方向并且绕轴线自由旋转，转换和传动机构将主活塞的向前和向后运动转换成输出轴的旋转和摆动运动，以及具有小于主活塞的行程的次活塞的副活塞 压力作用力大于主活塞的压力作用力，并且以能够沿前后方向自由移动的方式配置在壳体内，能够与主活塞接触，以限制主活塞的中间停止位置 主活塞。

公开(公告)号：US20030041598A1

公开(公告)日：2003-03-06

申请号：US10217440

申请日：2002-08-14

Applicant: SMC Corporation

Inventor： Kiyoshi Takeuchi ,  Mitsunori Magaribuchi

IPC: F15B007/00

CPC classification number: F15B15/065 ,  F15B11/0413 ,  F15B11/076 ,  F15B15/24

Abstract: Of first and second two pressure chambers which are respectively formed on both sides of a first rack and a second rack, incompressible liquid is filled in the second pressure chambers which are positioned on the sides of back pressure at a driving time of the racks, and the second pressure chambers of the both racks are caused to communicate with each other via a throttle.

Abstract translation: 分别形成在第一齿条和第二齿条的两侧的第一和第二两个压力室，不可压缩的液体填充在位于机架行驶时的背压侧的第二压力室中，以及 两个齿条的第二压力室经由节气门彼此连通。