Patent ID: 8069869
Filing Date: 2011-12-06
Classification: A61H,Y10T

Abstract:
1. A crutch, comprising: a standing unit having a top and a foot, and multiple positioning holes defined between the top and the foot; an armpit rest mounted on the top of the standing unit; and a grip unit transversally connected to the standing unit, located between the top and the foot, and having: a grip with at least one end having a recess, a pin hole and two limiting portions; at least one positioning base having a U-shape configuration with two insertions each having a limiting notch and a hook, the hooks of two insertions extending outwardly and away from each other, and the positioning base correspondingly attached to the at least one end of the grip; and a pin formed on each of the at least one positioning base, wherein when each positioning base inserts into the recess, the limiting notch engages with the limiting portion, the pin penetrates the pin hole and a corresponding one of the multiple positioning holes; when the positioning base withdraws from the recess, the limiting notch separates from the limiting portion, the pin separates from the pin hole and the corresponding one of the multiple two insertions of the positioning holes, and the hook engages with the limiting portion.