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1. 发明授权

US07344569B2 Closed position maintainable selector valve, knee torque device using the valve, and artificial leg 有权
标题翻译：闭合位置可维护的选择阀，使用阀的膝盖扭矩装置和人造腿
公开(公告)号：US07344569B2
公开(公告)日：2008-03-18
申请号：US10589295
申请日：2004-09-09
申请人： Toyohiko Imakita , Aritomo Fukui , Masahiko Okuda , Yoshiaki Nakaya
发明人： Toyohiko Imakita , Aritomo Fukui , Masahiko Okuda , Yoshiaki Nakaya
IPC分类号： A61F2/64 , A61F2/68 , F16K31/12
CPC分类号： A61F2/68 , A61F2002/6818 , A61F2002/744 , A61F2002/745 , A61F2002/747 , A61F2002/748 , Y10T74/20546
摘要： A selector valve capable of maintaining a closed position for a while even if an operating force to a valve element (80) is eliminated when the selector valve (10) is switched from a closed position (braking state) to an open position. The valve element (80) of the selector valve (10) receives an operating force from the outside and a returning force in the opposite direction of the operating force by a valve spring (90). Accordingly, the valve element (80) opens and closes the valve by making the first end (801) of the valve element (80) seat on/unseat from a valve seat (48) on the housing (20) side according to the presence or absence of the operating force. A first port (31) and a second port (32) on both sides of the valve seat (48) are connected or cut off from each other by the opening and closing. The valve element (80) is formed in a stepped structure, and receives a force based on a difference in pressure receiving area by the stepped structure which results from the pressure of hydraulic fluid. The force can maintain the closed position of the valve for a while.
摘要翻译：即使当选择阀（10）从关闭位置（制动状态）切换到打开位置时，即使消除了对阀元件（80）的操作力，也能够保持关闭位置一段时间的选择阀。选择阀（10）的阀元件（80）从外部接收操作力，并且通过阀弹簧（90）在与操作力相反的方向上接收返回力。因此，阀元件（80）通过使阀元件（80）的第一端（801）从壳体（20）侧的阀座（48）位于/离开座部，根据存在或没有操作力。在阀座（48）的两侧上的第一端口（31）和第二端口（32）通过打开和关闭彼此连接或切断。阀元件（80）形成为阶梯式结构，并且通过由液压流体的压力产生的阶梯式结构，接受基于压力接收面积的差的力。力可以保持阀的关闭位置一段时间。

2. 发明授权

US07588604B2 Prosthetic leg with knee braking function 有权
标题翻译：假腿与膝制动功能
公开(公告)号：US07588604B2
公开(公告)日：2009-09-15
申请号：US10505699
申请日：2003-11-19
申请人： Masahiko Okuda , Toyohiko Imakita , Aritomo Fukui , Yoshiaki Nakaya
发明人： Masahiko Okuda , Toyohiko Imakita , Aritomo Fukui , Yoshiaki Nakaya
IPC分类号： A61F2/64
CPC分类号： A61F2/68 , A61F2/644 , A61F2002/6818 , A61F2002/6854 , A61F2002/744 , A61F2002/745 , A61F2002/747 , A61F2002/748 , A61F2002/7655
摘要： There is provided a prosthetic limb having a flexible knee brake function, which is designed such that it can be mechanically detected which part of the foot the load of the wearer is imposed on. In a thigh prosthetic limb (10), a joint upper member (12) including a knee plate (120) and a joint lower member (14) including a base bracket (22) integral with the frame (140) are operated to bend the knee. In the housing member (24), there are provided not only a knee axis but also a hydraulic brake circuit. There is a link mechanism (50) which allows a small relative motion between the housing member (24) and the base bracket (22) on the main body part side. The link mechanism (50) has an instantaneous center between the toe and the heel part of the prosthetic limb. This instantaneous center serves as a sensing point and detects which part of the foot the load of the wearer is imposed on by distinguishing a first case in which the wearer's load is imposed on the heel and a second case in which the wearer's load is imposed on the toe. Based on the detection result made by the link mechanism (50), the hydraulic brake circuit is controlled so that a flexible knee braking operation can be made.
摘要翻译：提供了一种具有柔韧的膝盖制动功能的假肢，其被设计成使得能够机械地检测施加穿着者的负荷的脚的哪一部分。在大腿假肢（10）中，操作包括膝盖板（120）和包括与框架（140）成一体的基座托架（22））的关节下部构件（14）的关节上部构件（12），以弯曲膝盖。在壳体部件24中，不仅设置膝部轴线，还设置有液压制动回路。存在连接机构（50），其允许壳体构件（24）和主体部分侧的基座托架（22）之间的小的相对运动。连杆机构（50）具有在脚趾与假肢之间的跟部之间的瞬时中心。这个瞬时中心用作感测点，通过区分佩戴者的负荷施加在脚跟上的第一种情况和施加穿着者的负荷的第二种情况，来检测穿着者的哪一部分施加穿着者的负荷脚趾。根据连杆机构50的检测结果，控制液压制动回路，从而能够进行柔性的膝盖制动操作。

3. 发明申请

US20070173953A1 Closed position maintainable selector valve, knee torque device using the valve, and artificial leg 有权
标题翻译：闭合位置可维护的选择阀，使用阀的膝盖扭矩装置和人造腿
公开(公告)号：US20070173953A1
公开(公告)日：2007-07-26
申请号：US10589295
申请日：2004-09-09
申请人： Toyohiko Imakita , Aritomo Fukui , Masahiko Okuda , Yoshiaki Nakaya
发明人： Toyohiko Imakita , Aritomo Fukui , Masahiko Okuda , Yoshiaki Nakaya
IPC分类号： A61F2/62
CPC分类号： A61F2/68 , A61F2002/6818 , A61F2002/744 , A61F2002/745 , A61F2002/747 , A61F2002/748 , Y10T74/20546
摘要： A selector valve capable of maintaining a closed position for a while even if an operating force to a valve element (80) is eliminated when the selector valve (10) is switched from a closed position (braking state) to an open position. The valve element (80) of the selector valve (10) receives an operating force from the outside and a returning force in the opposite direction of the operating force by a valve spring (90). Accordingly, the valve element (80) opens and closes the valve by making the first end (801) of the valve element (80) seat on/unseat from a valve seat (48) on the housing (20) side according to the presence or absence of the operating force. A first port (31) and a second port (32) on both sides of the valve seat (48) are connected or cut off from each other by the opening and closing. The valve element (80) is formed in a stepped structure, and receives a force based on a difference in pressure receiving area by the stepped structure which results from the pressure of hydraulic fluid. The force can maintain the closed position of the valve for a while.
摘要翻译：即使当选择阀（10）从关闭位置（制动状态）切换到打开位置时，即使消除了对阀元件（80）的操作力，也能够保持关闭位置一段时间的选择阀。选择阀（10）的阀元件（80）从外部接收操作力，并且通过阀弹簧（90）在与操作力相反的方向上接收返回力。因此，阀元件（80）通过使阀元件（80）的第一端（801）从壳体（20）侧的阀座（48）位于/离开座部，根据存在或没有操作力。在阀座（48）的两侧上的第一端口（31）和第二端口（32）通过打开和关闭彼此连接或切断。阀元件（80）形成为阶梯式结构，并且通过由液压流体的压力产生的阶梯式结构，接受基于压力接收面积的差的力。力可以保持阀的关闭位置一段时间。

4. 发明申请

US20050234562A1 Prosthetic leg with knee braking function 有权
标题翻译：假腿与膝制动功能
公开(公告)号：US20050234562A1
公开(公告)日：2005-10-20
申请号：US10505699
申请日：2003-11-19
申请人： Masahiko Okuda , Toyohiko Imakita , Aritomo Fukui , Yoshiaki Nakaya
发明人： Masahiko Okuda , Toyohiko Imakita , Aritomo Fukui , Yoshiaki Nakaya
IPC分类号： A61F2/64 , A61F2/68 , A61F2/74 , A61F2/76
CPC分类号： A61F2/68 , A61F2/644 , A61F2002/6818 , A61F2002/6854 , A61F2002/744 , A61F2002/745 , A61F2002/747 , A61F2002/748 , A61F2002/7655
摘要： There is provided a prosthetic limb having a flexible knee brake function, which is designed such that it can be mechanically detected which part of the foot the load of the wearer is imposed on. In a thigh prosthetic limb (10), a joint upper member (12) including a knee plate (120) and a joint lower member (14) including a base bracket (22) integral with the frame (140) are operated to bend the knee. In the housing member (24), there are provided not only a knee axis but also a hydraulic brake circuit. There is a link mechanism (50) which allows a small relative motion between the housing member (24) and the base bracket (22) on the main body part side. The link mechanism (50) has an instantaneous center between the toe and the heel part of the prosthetic limb. This instantaneous center serves as a sensing point and detects which part of the foot the load of the wearer is imposed on by distinguishing a first case in which the wearer's load is imposed on the heel and a second case in which the wearer's load is imposed on the toe. Based on the detection result made by the link mechanism (50), the hydraulic brake circuit is controlled so that a flexible knee braking operation can be made.
摘要翻译：提供了一种具有柔韧的膝盖制动功能的假肢，其被设计成使得能够机械地检测施加穿着者的负荷的脚的哪一部分。在大腿假肢（10）中，操作包括膝盖板（120）和包括与框架（140）成一体的基座托架（22））的关节下部构件（14）的关节上部构件（12），以弯曲膝盖。在壳体部件24中，不仅设置膝部轴线，还设置有液压制动回路。存在连接机构（50），其允许壳体构件（24）和主体部分侧的基座托架（22）之间的小的相对运动。连杆机构（50）具有在脚趾与假肢之间的跟部之间的瞬时中心。这个瞬时中心用作感测点，通过区分佩戴者的负荷施加在脚跟上的第一种情况和施加穿着者的负荷的第二种情况，来检测穿着者的哪一部分施加穿着者的负荷脚趾。根据连杆机构50的检测结果，控制液压制动回路，从而能够进行柔性的膝盖制动操作。

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