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1. 发明授权

US08504241B2 Self-centering, torque-sensing joint assembly for a pallet truck power steering system 有权
标题翻译：自动对中，用于托盘车动力转向系统的转矩传感接头组件
公开(公告)号：US08504241B2
公开(公告)日：2013-08-06
申请号：US12756732
申请日：2010-04-08
申请人： Timothy T. Hanna , Richard M. Day , James M. McDonough , Jeffrey A. Coppola
发明人： Timothy T. Hanna , Richard M. Day , James M. McDonough , Jeffrey A. Coppola
IPC分类号： B62D1/20
CPC分类号： B62D1/14 , B62D5/0418 , B62D6/10 , B66F9/065 , B66F9/07568 , Y02T10/7258 , Y10T74/20
摘要： A steering mechanism includes a handle with a tiller arm coupled to the handle via a flexible joint allowing relative movement of the handle about the tiller arm. A handle centering mechanism forming part of the steering mechanism includes a first end fixedly secured to the handle and a second end extending into a channel of the tiller arm. The second end compresses bumpers disposed on opposing sides of the second end. The bumpers urge the handle toward a neutral position wherein when a force is applied to move the handle away from a home position relative to the tiller arm, one of the compressed bumpers of the pair of compressed bumpers is further compressed. When the force is removed, the handle is returned to the home position by action of the pair of compressed bumpers. Preferably, the steering mechanism includes a torque sensing arrangement having a sensor and a magnet. The sensor produces a signal based on movement of the handle relative to the tiller arm by sensing changes in the magnet field of the magnet proportional to the torque exerted on the handle regardless of the angle of the tiller arm.
摘要翻译：转向机构包括手柄，其具有通过柔性接头联接到手柄的舵杆，允许把手围绕耕作机臂相对移动。形成转向机构的一部分的手柄对中机构包括固定在手柄上的第一端和延伸到舵手臂的通道中的第二端。第二端压缩设置在第二端的相对侧上的保险杠。缓冲器将把手推向中立位置，其中当施加力以相对于耕耘机臂移动手柄远离原始位置时，一对压缩缓冲器中的一个压缩缓冲器被进一步压缩。当力消除时，手柄通过一对压缩缓冲器的作用返回到原位。优选地，转向机构包括具有传感器和磁体的转矩感测装置。传感器基于手柄相对于耕耘机臂的移动产生信号，通过感测与施加在手柄上的扭矩成比例的磁体磁场的变化，而不管耕耘机臂的角度如何。

2. 发明申请

US20110231059A1 SELF-CENTERING, TORQUE-SENSING JOINT ASSEMBLY FOR A PALLET TRUCK POWER STEERING SYSTEM 有权
标题翻译：托盘动力转向系统的自调心转矩接头组件
公开(公告)号：US20110231059A1
公开(公告)日：2011-09-22
申请号：US12756732
申请日：2010-04-08
申请人： Timothy T. Hanna , Richard M. Day , James M. McDonough , Jeffrey A. Coppola
发明人： Timothy T. Hanna , Richard M. Day , James M. McDonough , Jeffrey A. Coppola
IPC分类号： G06F19/00 , B62D1/20
CPC分类号： B62D1/14 , B62D5/0418 , B62D6/10 , B66F9/065 , B66F9/07568 , Y02T10/7258 , Y10T74/20
摘要： A steering mechanism includes a handle with a tiller arm coupled to the handle via a flexible joint allowing relative movement of the handle about the tiller arm. A handle centering mechanism forming part of the steering mechanism includes a first end fixedly secured to the handle and a second end extending into a channel of the tiller arm. The second end compresses bumpers disposed on opposing sides of the second end. The bumpers urge the handle toward a neutral position wherein when a force is applied to move the handle away from a home position relative to the tiller arm, one of the compressed bumpers of the pair of compressed bumpers is further compressed. When the force is removed, the handle is returned to the home position by action of the pair of compressed bumpers. Preferably, the steering mechanism includes a torque sensing arrangement having a sensor and a magnet. The sensor produces a signal based on movement of the handle relative to the tiller arm by sensing changes in the magnet field of the magnet proportional to the torque exerted on the handle regardless of the angle of the tiller arm.
摘要翻译：转向机构包括手柄，其具有通过柔性接头联接到手柄的舵杆，允许把手围绕耕作机臂相对移动。形成转向机构的一部分的手柄对中机构包括固定在手柄上的第一端和延伸到舵手臂的通道中的第二端。第二端压缩设置在第二端的相对侧上的保险杠。缓冲器将把手推向中立位置，其中当施加力以相对于耕耘机臂移动手柄远离原始位置时，一对压缩缓冲器中的一个压缩缓冲器被进一步压缩。当力消除时，手柄通过一对压缩缓冲器的作用返回到原位。优选地，转向机构包括具有传感器和磁体的转矩感测装置。传感器基于手柄相对于耕耘机臂的移动产生信号，通过感测与施加在手柄上的扭矩成比例的磁体磁场的变化，而不管耕耘机臂的角度如何。

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