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公开(公告)号：EP1336450A2
公开(公告)日：2003-08-20
申请号：EP03000108.5
申请日：2003-01-02
发明人： Yonezawa, Keitaro , Yoshimura, Gaku
IPC分类号： B23Q1/28
CPC分类号： B23Q1/28
摘要： A first piston (22) of a first locking cylinder (20) descends when a pressure of compressed air in an actuation chamber (23) has exceeded a pressure for locking commencement (P1) and ascends by a first spring (24) when the pressure of the compressed air has decreased to a pressure for releasing commencement (P2). A second advancing and retreating cylinder (32) comprises an inlet chamber (41) and an outlet chamber (45) formed below and above a second piston (35), respectively, and a second spring (46). The actuation chamber (23) communicates with the outside air through the outlet chamber (45). A restricting passage (37) is provided in a route between the actuation chamber (23) and the outside air. The actuation chamber (23) communicates with one of the inlet chamber (41) and the outlet chamber (45) through a communication hole (62).
摘要翻译： 当致动室（23）中的压缩空气的压力超过用于锁定开始的压力（P1）并由第一弹簧（24）上升时，第一锁定气缸（20）的第一活塞（22）下降，当压力 的压缩空气已经降低到用于释放开始的压力（P2）。 第二推进和退回缸（32）包括分别形成在第二活塞（35）下方和上方的入口室（41）和出口室（45）和第二弹簧（46）。 致动室（23）通过出口室（45）与外部空气连通。 限制通道（37）设置在致动室（23）和外部空气之间的路线中。 致动室（23）通过连通孔（62）与入口室（41）和出口室（45）中的一个连通。
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公开(公告)号：EP0819501A1
公开(公告)日：1998-01-21
申请号：EP97201996.2
申请日：1997-07-01
发明人： Yonezawa, Keitaro
IPC分类号： B25B5/06
CPC分类号： B25B5/062
摘要： An upper end wall (3a) and a lower end wall (3b) of a housing (3) are adapted to support an upper sliding portion (11) and a lower sliding portion (12) of a clamp rod (5), respectively. A rotary portion (26) is provided on the clamp rod (5) below a piston (15) fixed to the clamp rod (5). A rotation actuating sleeve (27) is externally fitted onto the rotary portion (26) axially movably but unrotatably. The sleeve (27) is urged upward by a pushing spring (31) and prevented from moving farther than a predetermined distance by a stopper (32). An axial movement of the clamp rod (5) is converted to a rotary movement by a converting mechanism (34).
摘要翻译： 壳体（3）的上端壁（3a）和下端壁（3b）分别适于支撑夹紧杆（5）的上滑动部分（11）和下滑动部分（12）。 旋转部分（26）设置在固定在夹紧杆（5）上的活塞（15）下面的夹紧杆（5）上。 旋转致动套筒（27）以轴向可移动但不可旋转的方式外部装配到旋转部分（26）上。 套筒（27）被推动弹簧（31）向上推动，并通过止动件（32）防止其超过预定距离的移动。 夹紧杆（5）的轴向移动由转换机构（34）转换成旋转运动。
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3.发明授权
公开(公告)号：EP0371710B1
公开(公告)日：1995-01-25
申请号：EP89312229.1
申请日：1989-11-24
CPC分类号： B23Q3/1556 , B29C45/1756 , B30B15/028 , Y10S100/918 , Y10T29/5191 , Y10T83/8748 , Y10T483/1891
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公开(公告)号：EP0412871B1
公开(公告)日：1993-10-20
申请号：EP90402166.4
申请日：1990-07-27
发明人： Yonezawa, Keitaro
IPC分类号： F15B13/042
CPC分类号： F15B13/0405 , Y10T137/87225 , Y10T137/87241
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公开(公告)号：EP0273721B1
公开(公告)日：1993-04-14
申请号：EP87311408.6
申请日：1987-12-23
发明人： Yonezawa, Keitaro
CPC分类号： F15B3/00 , B21D45/006 , B26D7/1818 , B26F2210/08 , H05K3/0044
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6.发明公开
公开(公告)号：EP0371710A3
公开(公告)日：1992-07-01
申请号：EP89312229.1
申请日：1989-11-24
CPC分类号： B23Q3/1556 , B29C45/1756 , B30B15/028 , Y10S100/918 , Y10T29/5191 , Y10T83/8748 , Y10T483/1891
摘要： In an apparatus and a method for replacing a working-object of a processing machine,
there are provided a working-object replacing support (6), a working-object moving passage (12) and a push/pull drive means (18) for the working-objects (5a) (5b). The push/pull drive means (18) is provided with a push/pull drive device (19), a push/pull engaging member pedestal (20), a push/pull transmission member (21), a guide rail (22) and a push/pull engaging member (23). An engaging portion (59) of the engaging member (23) is adapted to be shifted to a position lower than height positions of lower surfaces of engaged portions (25) (26) of the working-objects (5a) (5b) under the changed over condition to the disengagement position (Y) and at least to face upward so as to be engaged with the engaged portions (25) (26) from below under the changed over condition to the engagement position (X).-
7.发明公开Apparatus and method for replacing working-object of processing machine 失效Einrichtung und Verfahren zum Auswechseln derWerkstückea Bearbeitungsmaschinen。
公开(公告)号：EP0371710A2
公开(公告)日：1990-06-06
申请号：EP89312229.1
申请日：1989-11-24
CPC分类号： B23Q3/1556 , B29C45/1756 , B30B15/028 , Y10S100/918 , Y10T29/5191 , Y10T83/8748 , Y10T483/1891
摘要： In an apparatus and a method for replacing a working-object of a processing machine,
there are provided a working-object replacing support (6), a working-object moving passage (12) and a push/pull drive means (18) for the working-objects (5a) (5b).
The push/pull drive means (18) is provided with a push/pull drive device (19), a push/pull engaging member pedestal (20), a push/pull transmission member (21), a guide rail (22) and a push/pull engaging member (23).
An engaging portion (59) of the engaging member (23) is adapted to be shifted to a position lower than height positions of lower surfaces of engaged portions (25) (26) of the working-objects (5a) (5b) under the changed over condition to the disengagement position (Y) and at least to face upward so as to be engaged with the engaged portions (25) (26) from below under the changed over condition to the engagement position (X).摘要翻译： 在更换加工机械的工作对象的装置和方法中，设置有工作对象更换支撑件（6），工作物体移动通道（12）和推/拉驱动装置（18），用于 工作对象（5a）（5b）。 推/拉驱动装置（18）设置有推/拉驱动装置（19），推/拉接合构件座（20），推/拉传动构件（21），导轨（22）和 推/拉接合构件（23）。 接合构件（23）的接合部分（59）适于移动到低于工作物体（5a）（5b）的被接合部分（25）（26）的下表面的高度位置的位置， 在脱离接合位置（Y）的状态下，至少朝向上方，以便在变更状态下从下方与被卡合部（25）（26）卡合到卡合位置（X）。
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公开(公告)号：EP0273721A3
公开(公告)日：1990-03-07
申请号：EP87311408.6
申请日：1987-12-23
发明人： Yonezawa, Keitaro
CPC分类号： F15B3/00 , B21D45/006 , B26D7/1818 , B26F2210/08 , H05K3/0044
摘要： A booster for the cusion-knockout mechanism (62) associated with the slide (61) of a press-machine (60) serves to stably hold down a work plate such as a printed board and the likes while performing a cushioning operation during a pressing or punching stroke and serves to knock the work plate out from the punches (68) after the pressing stroke has been completed. The booster is connected to a hydraulic actuation chamber (64) of a cushion cylinder (63) provided in the slide of the press-machine by valve means (27) comprising a valve body portion (44) within a valve casing (22) and a knockout actuator (28) which is fixedly secured to the valve casing so as to perform the valve opening operation of the valve means. The valve means are adapted to push a valve body toward the valve closing side by the resultant force obtained from a spring force of a valve closing spring (31) and the pressure in the valve chamber and to push the valve body toward the valve opening side by a pressure in a back pressure cylinder (40), which is connected to the valve chamber so that the force which pushes the valve body toward the valve closing side is decreased by the body toward the valve closing side is decreased by the back pressure applied to the valve body.
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公开(公告)号：EP0322617A2
公开(公告)日：1989-07-05
申请号：EP88120619.7
申请日：1988-12-09
发明人： Yonezawa, Keitaro
摘要： In a cylinder type hydraulic clamp in which a clamping means is adapted to be actuated by means of a hydraulic cylinder,
a piston rod 14 is projected through the cylinder body 8 of the hydraulic cylinder 4 and is equipped at its leading end portion with the clamping means 5. The clamping means 5 is arranged concentrically with the piston rod 14 and adapted to be resiliently urged by means of a contraction spring 20 toward its contracted position as well as to be pushed by means of an expansion slant cam 21 toward its expanded position. And at the time of the clamping actuation, when the clamping means 5 is hydraulically actuated toward the cylinder body 8 through the piston 9 and the piston rod 14, firstly the clamping means 5 is expanded diametrally by means of the expansion slant cam 21 against the resilient force of the contraction spring 20 and then a member B to be clamped is fixedly pressed between the cylinder body 8 and the clamping means 5 expanded as mentioned above.摘要翻译： 在其中夹紧装置适于通过液压缸致动的气缸式液压夹具中，活塞杆14突出穿过液压缸4的缸体8，并在其前端部分装配有夹紧 夹紧装置5与活塞杆14同心地布置并且适于通过收缩弹簧20向其收缩位置弹性地推动，并且借助于膨胀斜面凸轮21朝向其扩张位置被推动 。 并且在夹紧致动时，当夹紧装置5通过活塞9和活塞杆14朝向缸体8液压致动时，首先夹紧装置5通过膨胀斜面凸轮21向内扩张而抵靠 收缩弹簧20的弹性力然后被夹紧的构件B被固定地按压在缸体8和如上所述的夹紧装置5之间。
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10.发明公开Apparatus for driving piston by fluid pressure 失效Antriebsvorrichtungfüreinen Kolben durchFlüssigkeitsdruck。
公开(公告)号：EP0268458A2
公开(公告)日：1988-05-25
申请号：EP87310134.9
申请日：1987-11-17
发明人： Yonezawa, Keitaro
IPC分类号： F04B9/12
CPC分类号： F01L25/066 , F04B9/107
摘要： A piston (8) slidably inserted into a cylinder (7) is reciprocatably moved by fluid pressure such as pneumatic pressure and hydraulic oil and a spring (11) is used to move the piston upwardly. A spool-shaped pilot valve element (46) is provided to allow a supply-discharge valve disc (30) to take supply and discharge positions (X and Y), thus fluid pressure being supplied to and discharged from the cylinder. When the supply-discharge valve disc is actuated to take the supply position from the discharge position, the actuated force becomes stronger while the supply-discharge valve disc is in operation. When the supply-discharge valve disc is actuated to take the discharge position from the supply position, the back pressure resistance applied to the supply-discharge valve disc becomes weaker while the supply-discharge valve disc is in operation.
摘要翻译： 可滑动地插入气缸（7）中的活塞（8）通过诸如气动压力和液压油的流体压力往复运动，并且弹簧（11）用于向上移动活塞。 提供了一种阀芯形的先导阀元件（46），以允许供排气阀盘（30）获取和排出位置（X和Y），从而将流体压力供应到气缸和从气缸排出。 当供给排出阀盘被驱动以从排放位置获取供应位置时，在供给 - 排出阀盘运行时，致动力变强。 当供给排出阀盘被致动以从供给位置取出排出位置时，供给排出阀盘在运行时施加到供给排出阀盘的背压阻力变弱。
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