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1. 发明授权

US07165763B2 Positioning device 失效
标题翻译：定位装置
公开(公告)号：US07165763B2
公开(公告)日：2007-01-23
申请号：US10537355
申请日：2003-12-10
申请人： Keitaro Yonezawa , Tsutomu Shirakawa
发明人： Keitaro Yonezawa , Tsutomu Shirakawa
IPC分类号： B23Q3/00
CPC分类号： B23Q3/18 , B23B31/1071 , B23Q1/0081
摘要： A clamp pallet (2) as a reference member is fixed to a table (1) of a machining center. A tapered positioning hole (12) is opened in a lower surface of a work pallet (3) as a movable member. An annular central pillar (21) is projected upward from the clamp pallet (2), and an intermediate member (22) is arranged between the central pillar (21) and the positioning hole (12). The intermediate member (22) is composed of a shuttle member (23), which is diametrically expandable and contractible and supported on the central pillar (21) vertically movably, and a tapered cylinder (26), which is attached to an outer periphery of the shuttle member (23) and makes a tapering engagement with the positioning hole (12). The shuttle member (23) is urged upward by means of an elastic member (24).
摘要翻译：作为基准构件的夹具托架（2）固定在加工中心的工作台（1）上。锥形定位孔（12）作为可移动件在工件托盘（3）的下表面上打开。环形中心柱（21）从夹紧托盘（2）向上突出，中间构件（22）布置在中心柱（21）和定位孔（12）之间。中间构件（22）由可沿径向可膨胀和收缩并垂直运动地支撑在中心柱（21）上的梭构件（23）构成，锥形缸（26）附接到穿梭构件（23）并与定位孔（12）进行锥形接合。穿梭构件（23）借助于弹性构件（24）被向上推动。

2. 发明申请

US20060049568A1 Aligning drive mechanism and positioning apparatus having this mechanism 有权
标题翻译：对准驱动机构和具有该机构的定位装置
公开(公告)号：US20060049568A1
公开(公告)日：2006-03-09
申请号：US10541239
申请日：2003-12-17
申请人： Keitaro Yonezawa , Tsutomu Shirakawa , Yosuke Haruna
发明人： Keitaro Yonezawa , Tsutomu Shirakawa , Yosuke Haruna
IPC分类号： B23Q3/00
CPC分类号： F16M7/00 , B23B31/402 , B23B31/4053 , B23Q1/009
摘要： A housing (6) is provided in a reference block (1). An annular plug (9), which is to be inserted into a positioning hole (3) of a work pallet (2), is projected upward from the housing (6). An output member (13) is inserted into a guide hole (10) of the housing (6) vertically movably. An upper end of the output member (13) is inserted into the annular plug (9), and a plurality of pressing members (56) are supported on a peripheral wall (9a) of the annular plug (9) radially movably. An annular aligning space (31) is formed between a guided portion (21) of the output member (13) and the guide hole (10). A shuttle member (41), which is diametrically expandable and contractible, is inserted into the aligning space (31). The shuttle member (41) is urged upward by a spring (51).
摘要翻译：在参考块（1）中设置壳体（6）。插入工件托盘（2）的定位孔（3）中的环形塞（9）从壳体（6）向上突出。输出构件（13）可垂直移动地插入壳体（6）的引导孔（10）中。输出构件（13）的上端插入到环形塞（9）中，并且多个按压构件（56）可径向移动地支撑在环形塞（9）的周壁（9a）上。在输出构件（13）的引导部分（21）和引导孔（10）之间形成环形对准空间（31）。可径向膨胀和收缩的穿梭件（41）被插入对准空间（31）中。梭子件（41）被弹簧（51）向上推动。

3. 发明授权

US06499383B2 Cylinder assembly 失效
标题翻译：气缸组件
公开(公告)号：US06499383B2
公开(公告)日：2002-12-31
申请号：US09885121
申请日：2001-06-21
申请人： Tsutomu Shirakawa , Keitaro Yonezawa
发明人： Tsutomu Shirakawa , Keitaro Yonezawa
IPC分类号： F01L1500
CPC分类号： F16N39/002
摘要： A manifold (2) is provided with a first passage (4) for supplying pressurized oil and a second passage (5) for air venting. The manifold (2) has a support surface (9) to which a housing (12) of every hydraulic cylinder (7) is hermetically fixed through a sealing member (10). A piston (14) is inserted into a cylinder bore (13) of the housing (12). A hydraulic chamber (15) is formed between the piston (14) and the support surface (9). The hydraulic chamber (15) directly opposes to the support surface (9). The first passage (4) communicates with the respective hydraulic chambers (15) through branched passages (17). The hydraulic chamber (15) has an upper portion communicated with the second passage (5) through an air vent passage (18).
摘要翻译：歧管（2）设置有用于供应加压油的第一通道（4）和用于排气的第二通道（5）。歧管（2）具有支撑表面（9），每个液压缸（7）的壳体（12）通过密封构件（10）气密地固定在该支撑表面上。活塞（14）插入壳体（12）的气缸孔（13）中。液压室（15）形成在活塞（14）和支撑表面（9）之间。液压室（15）直接与支承表面（9）相对。第一通道（4）通过分支通道（17）与相应的液压室（15）连通。液压室（15）具有通过排气通道（18）与第二通道（5）连通的上部。

4. 发明授权

US07303186B2 Aligning drive mechanism and positioning apparatus having this mechanism 有权
标题翻译：对准驱动机构和具有该机构的定位装置
公开(公告)号：US07303186B2
公开(公告)日：2007-12-04
申请号：US10541239
申请日：2003-12-17
申请人： Keitaro Yonezawa , Tsutomu Shirakawa , Yosuke Haruna
发明人： Keitaro Yonezawa , Tsutomu Shirakawa , Yosuke Haruna
IPC分类号： B23Q3/00
CPC分类号： F16M7/00 , B23B31/402 , B23B31/4053 , B23Q1/009
摘要： A housing (6) is provided in a reference block (1). An annular plug (9), which is to be inserted into a positioning hole (3) of a work pallet (2), is projected upward from the housing (6). An output member (13) is inserted into a guide hole (10) of the housing (6) vertically movably. An upper end of the output member (13) is inserted into the annular plug (9), and a plurality of pressing members (56) are supported on a peripheral wall (9a) of the annular plug (9) radially movably. An annular aligning space (31) is formed between a guided portion (21) of the output member (13) and the guide hole (10). A shuttle member (41), which is diametrically expandable and contractible, is inserted into the aligning space (31). The shuttle member (41) is urged upward by a spring (51).
摘要翻译：在参考块（1）中设置壳体（6）。插入工件托盘（2）的定位孔（3）中的环形塞（9）从壳体（6）向上突出。输出构件（13）可垂直移动地插入壳体（6）的引导孔（10）中。输出构件（13）的上端插入到环形塞（9）中，并且多个按压构件（56）可径向移动地支撑在环形塞（9）的周壁（9a）上。在输出构件（13）的引导部分（21）和引导孔（10）之间形成环形对准空间（31）。可径向膨胀和收缩的穿梭件（41）被插入对准空间（31）中。梭子件（41）被弹簧（51）向上推动。

5. 发明授权

US5063648A Apparatus and method for replacing working-object of processing machine 失效
标题翻译：装置和方法，用于更换加工机器的工作对象
公开(公告)号：US5063648A
公开(公告)日：1991-11-12
申请号：US440315
申请日：1989-11-22
申请人： Keitaro Yonezawa , Ichiro Miyata , Tsutomu Shirakawa
发明人： Keitaro Yonezawa , Ichiro Miyata , Tsutomu Shirakawa
IPC分类号： B23Q3/155 , B29C45/17 , B30B15/02
CPC分类号： B23Q3/1556 , B29C45/1756 , B30B15/028 , Y10S100/918 , Y10T29/5191 , Y10T483/1891 , Y10T83/8748
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).

6. 发明授权

US06457406B1 Overload protector for mechanical press 失效
标题翻译：机械压力机用过载保护器
公开(公告)号：US06457406B1
公开(公告)日：2002-10-01
申请号：US09534015
申请日：2000-03-24
申请人： Keitaro Yonezawa , Tsutomu Shirakawa
发明人： Keitaro Yonezawa , Tsutomu Shirakawa
IPC分类号： F16P500
CPC分类号： B30B15/284
摘要： Two hydraulic chambers (3a),(3b) within a slide (2) communicate with an overload protecting valve (12) through relief passages (11a),(11b). Check valves (13a),(13b) and discharge valves (14a),(14b) are arranged in series with each other in the respective relief passages (11a),(11b). When either of the two hydraulic chambers (3a),(3b) has a pressure not less than a set overload pressure, the overload protecting valve (12) opens to relieve pressurized oil within the hydraulic chamber (3a) to an exterior area via a restricting passage (78) of one discharge valve (14a) and the overload protecting valve (12). This switches over the two discharge valves (14a),(14b) to a discharging condition substantially at the same time to communicate the hydraulic chambers (3a),(3b) with a discharge port (R).
摘要翻译：（2）内的两个液压室（3a），（3b）通过卸载通道（11a），（11b）与过载保护阀（12）连通。止回阀（13a），（13b）和排出阀（14a），（14b）在相应的排放通道（11a），（11b）中彼此串联布置。当两个液压室（3a），（3b）中的任何一个具有不小于设定的过载压力的压力时，过载保护阀（12）打开，以通过一个外部区域通过液压室（3a）将压力油释放到外部区域限制一个排放阀（14a）和过载保护阀（12）的通道（78）。这两个排放阀（14a），（14b）基本上同时将液压室（3a），（3b）与排放口（R）连通。

7. 发明授权

US5147091A Clamping apparatus 失效
公开(公告)号：US5147091A
公开(公告)日：1992-09-15
申请号：US798908
申请日：1991-11-27
申请人： Keitaro Yonezawa , Tsutomu Shirakawa
发明人： Keitaro Yonezawa , Tsutomu Shirakawa
IPC分类号： B21D37/14 , B22D17/26 , B23Q3/06 , B25B5/06 , B29C33/20 , B29C45/17 , B29C45/26
CPC分类号： B25B5/061 , B29C45/1742 , B29C2043/046
摘要： A clamping-member (7) is adapted to be straightly actuated from slantly above relative to a clamped surface (2a) of a clamped object (2) placed in front of a housing (4) and is provided with a clamping end surface (22) formed substantially in parallel to the clamped surface (2a). A shuttle member (21) for sliding is interposed between the clamped surface (2a) and the clamping end surface (22) and supported by the clamping end surface (22) so as to be slidingly movable within a certain extent in front and rear directions.

8. 发明申请

US20060186591A1 Positioning device 失效
标题翻译：定位装置
公开(公告)号：US20060186591A1
公开(公告)日：2006-08-24
申请号：US10537355
申请日：2003-12-10
申请人： Keitaro Yonezawa , Tsutomu Shirakawa
发明人： Keitaro Yonezawa , Tsutomu Shirakawa
IPC分类号： B23Q3/00
CPC分类号： B23Q3/18 , B23B31/1071 , B23Q1/0081
摘要： A clamp pallet (2) as a reference member is fixed to a table (1) of a machining center. A tapered positioning hole (12) is opened in a lower surface of a work pallet (3) as a movable member. An annular central pillar (21) is projected upward from the clamp pallet (2), and an intermediate member (22) is arranged between the central pillar (21) and the positioning hole (12). The intermediate member (22) is composed of a shuttle member (23), which is diametrically expandable and contractible and supported on the central pillar (21) vertically movably, and a tapered cylinder (26), which is attached to an outer periphery of the shuttle member (23) and makes a tapering engagement with the positioning hole (12). The shuttle member (23) is urged upward by means of an elastic member (24).
摘要翻译：作为基准构件的夹具托架（2）固定在加工中心的工作台（1）上。锥形定位孔（12）作为可移动件在工件托盘（3）的下表面上打开。环形中心柱（21）从夹紧托盘（2）向上突出，中间构件（22）布置在中心柱（21）和定位孔（12）之间。中间构件（22）由可沿径向可膨胀和收缩并垂直运动地支撑在中心柱（21）上的梭构件（23）构成，锥形缸（26）附接到穿梭构件（23）并与定位孔（12）进行锥形接合。穿梭构件（23）借助于弹性构件（24）被向上推动。

9. 发明授权

US06527266B1 Clamping apparatus with datum function 有权
标题翻译：带基准功能的夹紧装置
公开(公告)号：US06527266B1
公开(公告)日：2003-03-04
申请号：US09631670
申请日：2000-08-03
申请人： Keitaro Yonezawa , Tsutomu Shirakawa
发明人： Keitaro Yonezawa , Tsutomu Shirakawa
IPC分类号： B23Q300
CPC分类号： B23Q17/006 , B23Q1/0081 , B23Q11/005 , B23Q16/00 , B23Q17/002
摘要： A clamp pallet (2) is fixed to a table (1) of a machining center. A work pallet (3) has a positioning hole (12) and an engaging hole (13) formed in order from a lower side. A plug portion (21) projects upwards from the clamp pallet (2). A shuttle member (23) is vertically movably fitted onto the plug portion (21). A coned disc spring (24) urges the shuttle member (23) upwards. The shuttle member (23) has a tapered surface (28) with which the positioning hole (12) makes a tapering engagement. A pull rod (31) is inserted into the plug portion (21). The pull rod (31) pushes engaging balls (34) to the engaging hole (13), thereby driving the work pallet (3) downwards.
摘要翻译：夹具托盘（2）固定在加工中心的工作台（1）上。工作托盘（3）具有从下侧开始顺序形成的定位孔（12）和接合孔（13）。插头部分（21）从夹具托盘（2）向上突出。梭子构件（23）可垂直地移动地装配到插头部分（21）上。锥形盘簧（24）向上推动梭子件（23）。梭子件（23）具有锥形表面（28），定位孔（12）通过该锥形表面进行锥形接合。拉杆（31）插入插头部分（21）中。拉杆（31）将接合球（34）推到接合孔（13），从而将工作托盘（3）向下驱动。

10. 发明授权

US06220565B1 Safety valve assembly 失效
标题翻译：安全阀总成
公开(公告)号：US06220565B1
公开(公告)日：2001-04-24
申请号：US09500955
申请日：2000-02-15
申请人： Keitaro Yonezawa , Tsutomu Shirakawa
发明人： Keitaro Yonezawa , Tsutomu Shirakawa
IPC分类号： F16K3112
CPC分类号： F16K17/105
摘要： A main valve (5) has a first valve seat (11) to which a compression spring (21) urges a first closure member (14). A restricting passage (16) and an actuation chamber (17) for valve closing are arranged within the first closure member (14) in order. A valve-opening holding chamber (25) is formed from an inner space defined by a fitting wall (23) with which the first closure member (14) fits at a final time of its closing movement. The actuation chamber (17) communicates with a second valve seat (31) of a pilot valve (6). A pushing spring (37) brings a second closure member (34) into closing contact with the second valve seat (31). The second valve seat (31), the first valve seat (11), the actuation chamber (17) and the valve-opening holding chamber (25) have respective sectional areas (S), (T), (U) and (V) set to values enlarging one after the other in the mentioned order.
摘要翻译：主阀（5）具有第一阀座（11），压缩弹簧（21）推动第一闭合件（14）。用于阀关闭的限制通道（16）和致动室（17）依次布置在第一关闭构件（14）内。一个阀开口保持室（25）由一个由一个装配壁（23）限定的内部空间形成，第一个关闭构件（14）在其关闭运动的最后一个时间与之配合。致动室（17）与先导阀（6）的第二阀座（31）连通。推动弹簧（37）使第二闭合构件（34）与第二阀座（31）紧密接触。第二阀座（31），第一阀座（11），致动腔（17）和开阀保持腔（25）分别具有截面积（S），（T），（U）和）设置为按照上述顺序逐个放大的值。

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