HUMAN GRASP ASSIST DEVICE WITH EXOSKELETON

A grasp assist system includes a glove, actuator assembly, and controller. The glove includes a digit, i.e., a finger or thumb, and a force sensor. The sensor measures a grasping force applied to an object by an operator wearing the glove. Phalange rings are positioned with respect to the digit. A f...

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Bibliographic Details
Main Authors IHRKE CHRIS A, BERGELIN BRYAN J, DAVIS DONALD R, BRIDGWATER LYNDON B.J, LINN DOUGLAS MARTIN
Format Patent
LanguageEnglish
Published 29.08.2013
Subjects
ACCESSORIES
HUMAN NECESSITIES
OUTERWEAR
PROTECTIVE GARMENTS
WEARING APPAREL
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Summary:A grasp assist system includes a glove, actuator assembly, and controller. The glove includes a digit, i.e., a finger or thumb, and a force sensor. The sensor measures a grasping force applied to an object by an operator wearing the glove. Phalange rings are positioned with respect to the digit. A flexible tendon is connected at one end to one of the rings and is routed through the remaining rings. An exoskeleton positioned with respect to the digit includes hinged interconnecting members each connected to a corresponding ring, and/or a single piece of slotted material. The actuator assembly is connected to another end of the tendon. The controller calculates a tensile force in response to the measured grasping force, and commands the tensile force from the actuator assembly to thereby pull on the tendon. The exoskeleton offloads some of the tensile force from the operator's finger to the glove.
Bibliography:Application Number: US201213408656