초록 ▼

A collapsible walker that includes a front frame, a pair of side frames, and a pair of levers. The front frame has a pair of skewed surfaces. The pair of side frames are hingedly attached to the front frame and are parallel thereto when the collapsible walker is in the closed position and are perpen

A collapsible walker that includes a front frame, a pair of side frames, and a pair of levers. The front frame has a pair of skewed surfaces. The pair of side frames are hingedly attached to the front frame and are parallel thereto when the collapsible walker is in the closed position and are perpendicular thereto when the collapsible walker is in the open position. The pair of side frames have notches therein with skewed surfaces, with the pair of skewed surfaces of the front frame being vertically movable in the notches. The skewed surfaces of the pair of side frames move relative to the pair of skewed surfaces of the front frame as the collapsible walker is achieving the open position, until such time as it achieves the open position in which the pair of skewed surfaces of the front frame and drop down in the notches and mate with, and abut against, the skewed surfaces therein so as to prevent relative rotation therebetween and further rotation of the pair of side frames in both directions. The pair of levers are pivotally mounted to the pair of side frames and selectively lift the pair of skewed surfaces of the front frame out of engagement with the skewed surfaces of the pair of side frames, and into the notches so as free the pair of side frames to pivot inwardly and allow the collapsible walker to achieve the closed position.

대표청구항 ▼

[ I claim:] [1.] A collapsible walker having an open position defining an open rear adapted to have a user enter and leave therethrough and being lightweight with a strength to weight ratio sufficient to assist the user in walking when said collapsible walker is in said open position, and with said

[ I claim:] [1.] A collapsible walker having an open position defining an open rear adapted to have a user enter and leave therethrough and being lightweight with a strength to weight ratio sufficient to assist the user in walking when said collapsible walker is in said open position, and with said open position being automatically maintained when said collapsible walker achieves said open position, and further having a closed position where it is collapsed to reduce required storage space, said walker comprising:a) a front frame adapted to be disposed in front of the user when said collapsible walker is in said open position, and having a pair of skewed surfaces;b) a pair of side frames hingedly attached to opposite end edges of said front frame and being parallel to said front frame when said collapsible walker is in said closed position so as to reduce the required storage space, and being perpendicular to said front frame, and adapted to be disposed at sides of the user and supporting the user when said collapsible walker is in said open position so as to assist the user in walking; said pair of side frames having notches therein, said notches having skewed surfaces in their bottoms, said pair of skewed surfaces of said front frame being vertically movable in said notches in said pair of side frames; said skewed surfaces of said pair of side frames moving relative to said pair of skewed surfaces of said front frame as said collapsible walker is achieving said open position, until such time as said collapsible walker achieves said open position in which said pair of skewed surfaces of said front frame drop down in said notches in said pair of side frames and mate with and abut against said skewed surfaces of said side frames so as to prevent relative rotation therebetween and further rotation of said pair of side frames in both directions so as to maintain said collapsible walker in said open position; andc) a pair of levers pivotally mounted to said pair of side frames and selectively lifting said pair of skewed surfaces of said front frame out of engagement with said skewed surfaces of said pair of side frames, and into said notches in said pair of side frames so as to free said pair of side frames to pivot inwardly and allow said collapsible walker to achieve said closed position.