公开(公告)号：US09731390B2

公开(公告)日：2017-08-15

申请号：US14410358

申请日：2013-04-30

Applicant: PASCAL ENGINEERING CORPORATION

Inventor： Takayuki Kawakami

IPC: B23Q3/00 ,  B23Q1/00 ,  B23Q3/18

CPC classification number: B23Q1/0063 ,  B23Q3/18

Abstract: In an object positioning/fixing device that positions and fixes a target object on a base member in the horizontal direction and in the vertical direction, a structure is provided in which, in a state in which the target object is pressed against the base member and fixed thereon by a fixation mechanism: first and second tapered engagement surfaces of first and second reference members are closely contacted against the inner circumferential surfaces of first and second annular engagement members via elastic deformation of the first and second annular engagement members; also first and second base end contact surfaces of the first and second reference members are contacted against the base member; and a pair of regulated surfaces of the second annular engagement member are closely contacted against a pair of regulating surfaces of a second installation hole via elastic deformation of the second annular engagement member.

公开(公告)号：US20140138890A1

公开(公告)日：2014-05-22

申请号：US14114650

申请日：2012-08-02

Applicant: PASCAL ENGINEERING CORPORATION

Inventor： Takayuki Kawakami

IPC: B23Q17/22 ,  F15B15/28 ,  B23Q3/08

CPC classification number: B23Q17/22 ,  B23Q1/70 ,  B23Q3/082 ,  B23Q17/005 ,  B25B5/062 ,  F15B11/072 ,  F15B15/225 ,  F15B15/2807 ,  F15B15/2815

Abstract: A fluid pressure cylinder and a clamp device that, when an output member arrives at a prescribed position such as, in particular, an advance limit position or a retraction limit position, are capable of detecting the position of the output member on the basis of change of air pressure as, due to an opening/closing valve mechanism, the communication state of an air passage within the clamp main body is changed over together with the operation of the output member.

Abstract translation: 一种流体压力缸和夹紧装置，当输出构件到达规定位置，特别是前进极限位置或缩回极限位置时，能够基于变化来检测输出构件的位置 由于开闭阀机构，夹紧主体内的空气通路的连通状态与输出部件的动作一起变化。

公开(公告)号：US10035227B2

公开(公告)日：2018-07-31

申请号：US14782398

申请日：2014-02-14

Applicant: PASCAL ENGINEERING CORPORATION

Inventor： Takayuki Kawakami

IPC: B25B1/00 ,  B23Q1/00

CPC classification number: B23Q1/009

Abstract: A positioning device capable of increasing the amount of diametrical expansion of an engagement member to be engaged in a cylindrical hole in a workpiece, and capable of performing positioning while not exerting any force on the workpiece in the downward direction positions a cylindrical hole (Ha) in a workpiece (W) in a first direction while permitting shifting thereof in a second direction, the device comprising: the insertion shaft member; a hydraulic cylinder for driving the insertion shaft member; a pair of engagement members; a taper engagement mechanism for shifting the engagement members to increase their diameter; and a movement permitting holding mechanism that, along with supporting the engagement members, so that they cannot shift in the first direction but are capable of shifting in the second direction.

公开(公告)号：US09951799B2

公开(公告)日：2018-04-24

申请号：US14438441

申请日：2013-09-20

Applicant: PASCAL ENGINEERING CORPORATION

Inventor： Takayuki Kawakami

IPC: F15B15/26 ,  F15B15/28 ,  B23Q3/08 ,  B23Q17/00 ,  B25B5/06 ,  F15B15/06

CPC classification number: F15B15/2838 ,  B23Q3/082 ,  B23Q17/005 ,  B25B5/062 ,  F15B15/06 ,  F15B15/2807 ,  F15B2211/6306

Abstract: An open/shut valve mechanism for detecting that a piston member of a hydraulic pressure cylinder has reached an unclamp position comprises: a valve body reception hole that communicates with a unclamp hydraulic pressure operating chamber, a valve body movably received in the valve body reception hole and having an annular concave engagement portion on its external circumferential portion; a spherical body that is movably installed in a cylinder main body and that can engage with the concave engagement portion; and an engagement portion that is formed on an auxiliary rod and with which the spherical body can engage; and when hydraulic pressure is charged into the unclamp hydraulic pressure operating chamber and the piston member has reached its unclamp position, the valve body receives the hydraulic pressure, a portion of the spherical body engages to the engagement portion and the valve body changes over to the valve closed position; and, when the piston member has shifted from its unclamp position, the spherical body engages with the annular concave engagement portion without engaging to the engagement portion, so that the valve body is held in its open position.

公开(公告)号：US09789588B2

公开(公告)日：2017-10-17

申请号：US14442264

申请日：2013-10-24

Applicant: PASCAL ENGINEERING CORPORATION

Inventor： Takayuki Kawakami

IPC: F15B15/20 ,  B25B5/06 ,  F15B15/06 ,  F15B15/28 ,  F15B15/14

CPC classification number: B25B5/062 ,  B25B5/061 ,  F15B15/063 ,  F15B15/1466 ,  F15B15/149 ,  F15B15/2807

Abstract: A fluid pressure cylinder comprises a rod insertion hole formed in a piston member, an auxiliary rod provided to a head side wall member so as to be inserted into the rod insertion hole, an open/shut valve mechanism for detection, and a fluid passage that is opened and shut by the open/shut valve mechanism. The open/shut valve mechanism includes a valve body reception hole formed in the auxiliary rod, a valve body that is movably held in the valve body reception hole and that has a recessed engagement portion on its external peripheral portion, and a spherical body mounted on the auxiliary rod so as to engage with the recessed engagement portion; when the piston member has reached a set shifting position, the valve body is changed over to the closed position or to the opened position due to cooperation between the spherical body, the recessed engagement portion, and the inner peripheral wall portion of the rod insertion hole.

公开(公告)号：US20150285280A1

公开(公告)日：2015-10-08

申请号：US14438441

申请日：2013-09-20

Applicant: PASCAL ENGINEERING CORPORATION

Inventor： Takayuki Kawakami

IPC: F15B15/28 ,  F15B15/06

CPC classification number: F15B15/2838 ,  B23Q3/082 ,  B23Q17/005 ,  B25B5/062 ,  F15B15/06 ,  F15B15/2807 ,  F15B2211/6306

Abstract: An open/shut valve mechanism for detecting that a piston member of a hydraulic pressure cylinder has reached an unclamp position comprises: a valve body reception hole that communicates with a unclamp hydraulic pressure operating chamber, a valve body movably received in the valve body reception hole and having an annular concave engagement portion on its external circumferential portion; a spherical body that is movably installed in a cylinder main body and that can engage with the concave engagement portion; and an engagement portion that is formed on an auxiliary rod and with which the spherical body can engage; and when hydraulic pressure is charged into the unclamp hydraulic pressure operating chamber and the piston member has reached its unclamp position, the valve body receives the hydraulic pressure, a portion of the spherical body engages to the engagement portion and the valve body changes over to the valve closed position; and, when the piston member has shifted from its unclamp position, the spherical body engages with the annular concave engagement portion without engaging to the engagement portion, so that the valve body is held in its open position.

Abstract translation: 一种用于检测液压缸的活塞件已达到松开位置的打开/关闭阀机构包括：阀体接收孔，其与非压力液压操作室连通，阀体可移动地容纳在阀体接收孔中 并在其外周部分具有环形凹形接合部分; 球形体，其可移动地安装在气缸主体中并且能够与凹形接合部接合; 以及接合部，其形成在辅助杆上，并且所述球体可与其接合; 并且当液压压力进入松开液压操作室并且活塞构件已经达到其松开位置时，阀体接收液压，球体的一部分接合到接合部分，并且阀体转换到 阀关闭位置; 并且当活塞构件从其松开位置移动时，球体与环形凹形接合部分接合而不与接合部接合，使得阀体保持在其打开位置。