WALK ASSISTANCE DEVICE

摘要

A walk assistance device where force generated by a leg link (5) is transmitted to the body trunk of the user through a load transmission section (1). The leg link has an upper first link section (6) connected to the load transmission section via a first joint section (3), a lower second link section (7) connected to a foot sole installation section (2) via a second joint section (4), an intermediate third joint section (8) for connecting the first link section and the second link section so that the distance between the first joint section and the second joint section is variable, and a drive source (9) for driving the third joint section. Inertia moment about the first joint section of the leg link is reduced to decrease a load acting on a leg of the user during walking. The drive source (9) is placed above the third joint section (8) of the first link section (6) to position the center of gravity of the entire leg link (5) above the third joint section (8). Also, when the drive source (9) is constructed from an electric motor (91) and a reduction gear (92), the electric motor (91) is placed above the reduction gear (92).