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公开(公告)号：US11571345B2
公开(公告)日：2023-02-07
申请号：US17076975
申请日：2020-10-22
摘要： The present disclosure includes methods of operating a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, one or more pairs of arm assemblies, and one or more sensors. The arm assembly includes a wheel configured to move from a first spatial location when the wheelchair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters can selectively engage the arm assembly based on at least one of a seat position, position of the arm assembly, and surface conditions of ground surface. The arm limiters can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair. The methods adjust the maximum operational speed of the wheelchair when the seat is in an elevated position based on sensor data relating to one or more of the arm limiter position and the position of the frame.
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公开(公告)号：US20220396309A1
公开(公告)日：2022-12-15
申请号：US17739909
申请日：2022-05-09
发明人： Robert William DAVIES , Nicholas E. KUZMA , Stephen ANTONISHAK , James P. MULHERN , Anthony LETUKAS
IPC分类号： B62D9/00 , B62D1/14 , B62D5/04 , B62D6/00 , B62D7/18 , B62D11/00 , B62D11/04 , B62K5/007 , B62K5/08 , B62J45/413
摘要： In some embodiments, a vehicle may include a frame having longitudinal axis. The vehicle may include a steering assembly having a steering input and at least one wheel. The steering assembly may be coupled to the frame and configured to steer the vehicle based on input from a steering input. The vehicle may include a first drive wheel and a second drive wheel. The vehicle may include a steering position sensor configured to detect steering input including a position of the steering input and at least one of i) a rate of change of position of steering input and ii) steering position time. The vehicle may include at least one controller configured to process a signal from the steering position sensor and, in response to the processed signal, drive the first drive wheel and the second drive wheel, the first drive wheel being driven independent of the second drive wheel.
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公开(公告)号：US11419774B2
公开(公告)日：2022-08-23
申请号：US17256760
申请日：2018-07-06
发明人： Jonathan Davis
IPC分类号： A61G5/10 , A61G5/04 , B60G3/14 , B60G21/045
摘要： A mobility vehicle may comprise a frame, a first pivot arm, a second pivot arm, and a suspension assembly. The first pivot arm may be coupled to the frame and coupled to a drive wheel. The second pivot arm may be coupled to the frame and coupled to a ground engaging caster wheel. The suspension assembly may be coupled to the frame. The suspension assembly may include a first spring assembly and a second spring assembly. The first spring assembly may be disposed about a first spring axis and coupled to the first pivot arm. The second spring assembly may be disposed about a second spring axis and coupled to the second pivot arm. The first spring axis and the second spring axis may be disposed relative to each other at an angle of no greater than about 150° when the mobility vehicle is operating on horizontal ground.
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公开(公告)号：US11358633B2
公开(公告)日：2022-06-14
申请号：US16488527
申请日：2018-02-23
发明人： Robert William Davies , Nicholas E. Kuzma , Stephen Antonishak , James P. Mulhern , Anthony Letukas
IPC分类号： B62D9/00 , B62D5/04 , B62D6/00 , B62D7/18 , B62D11/00 , B62D11/04 , B62J45/413 , B62D1/14 , B62K5/007 , B62K5/08
摘要： In some embodiments, a vehicle may include a frame having longitudinal axis. The vehicle may include a steering assembly having a steering input and at least one wheel. The steering assembly may be coupled to the frame and configured to steer the vehicle based on input from a steering input. The vehicle may include a first drive wheel and a second drive wheel. The vehicle may include a steering position sensor configured to detect steering input including a position of the steering input and at least one of i) a rate of change of position of steering input and ii) steering position time. The vehicle may include at least one controller configured to process a signal from the steering position sensor and, in response to the processed signal, drive the first drive wheel and the second drive wheel, the first drive wheel being driven independent of the second drive wheel.
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公开(公告)号：US10925785B2
公开(公告)日：2021-02-23
申请号：US16098905
申请日：2017-02-27
摘要： A powered wheelchair comprises a frame and an arm assembly that includes an arm that is pivotably coupled to the frame. The arm assembly includes a wheel coupled to the arm. A drive system is coupled to the arm assembly and configured to drive a drive wheel. An arm limiter is pivotably coupled to the suspension and coupled to one or more of the arm assembly and the drive system in an engaged position. The arm limiter is configured to limit movement of the arm assembly in the engaged position.
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公开(公告)号：USD857562S1
公开(公告)日：2019-08-27
申请号：US29665525
申请日：2018-10-04
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公开(公告)号：US20190192362A1
公开(公告)日：2019-06-27
申请号：US16098905
申请日：2017-02-27
CPC分类号： A61G5/1059 , A61G5/04 , A61G5/043 , A61G5/1078
摘要： A powered wheelchair comprises a frame and an arm assembly that includes an arm that is pivotably coupled to the frame. The arm assembly includes a wheel coupled to the arm. A drive system is coupled to the arm assembly and configured to drive a drive wheel. An arm limiter is pivotably coupled to the suspension and coupled to one or more of the arm assembly and the drive system in an engaged position. The arm limiter is configured to limit movement of the arm assembly in the engaged position.
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公开(公告)号：US20190125599A1
公开(公告)日：2019-05-02
申请号：US16091877
申请日：2017-04-05
摘要： A seat positioning system includes a base frame having a pair of forward slots and a pair of rear slots, and a seat frame having a front end and a back end. The seat frame is coupled to the base frame and movable relative to the base frame. A first pair of linkages is slideably coupled to the pair of forward slots and connects the frames. A first pair of locking devices has a locked configuration adapted to prevent the first pair of linkages from sliding relative to the pair of forward slots and an unlocked configuration adapted to allow the first pair of linkages to slide relative to the pair of forward slots. A second pair of linkages slideably is coupled to the pair of rear slots and connects the frames. An actuator is pivotally connected to both the seat frame and the base frame and is configured to extend and contract to move the seat frame relative to the base frame.
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