Provided is a hand exoskeleton device that is compact, lightweight, is worn at the fingers of a human body, and is capable of assisting in activities of daily living. The hand exoskeleton device performs motion conversion by means of a single drive means by means of a three-layer sliding spring mechanism, thereby transmitting motive force with respect to the metacarpophalangeal joints, the proximal interphalangeal joints, and the distal interphalangeal joints of the fingers of a human, thus being able to assist in activities of daily living. By means of the hand exoskeleton device, it is possible to achieve a device that supports the grasping action of the fingers of a human body in a manner that is more lightweight and compact than has been conventional. The hand exoskeleton device is characterized by being able to transmit a large driving force and being able to drive the flexion and extension of the three joints of the fingers by means of a single drive means. Furthermore, the device main body has flexibility, and so driving is possible in a safe manner.L'invention fournit un dispositif d'exosquelette de main de petite dimension et faible poids qui est porté sur une partie doigt du corps humain, et qui permet une assistance dans les mouvements de la vie quotidienne. Ce dispositif d'exosquelette effectue une conversion de mouvement par un seul moyen d'entraînement, à l'aide d'un mécanisme de ressort coulissant en trois couches, transmet ainsi une motricité aux articulations métacarpophalangiennes, aux articulations interphalangiennes proximales et aux articulations interphalangiennes distales des doigts d'un être humain, et permet une assistance dans les mouvements de la vie quotidienne. Selon l'invention, il est possible de réaliser un dispositif d'exosquelette de main qui assiste les mouvements de préhension de la main du corps humain, et qui est de plus petite dimension et de poids plus faible que dans l'art antérieur. Ce dispositif d'exosquelette de main est c
