초록 ▼

An invalid walker includes a means for locking at least one of the side frames in a hyperextended position. The walker includes a pair of U-shaped side frames whose front legs are connected by a cross brace member. Each of the rear legs of the side frames is connected to the cross brace member by a

An invalid walker includes a means for locking at least one of the side frames in a hyperextended position. The walker includes a pair of U-shaped side frames whose front legs are connected by a cross brace member. Each of the rear legs of the side frames is connected to the cross brace member by a telescoping tubular device in which a first tube telescopes into and is received by a second tube. A pushbutton mechanism is housed inside the first tube and positioned within a first aperture in the first tube. The second tube includes a pair of locking apertures, one for locking the side frame in a first normal open position and the second for locking the side frame in a hyperextended position. The apparatus further includes a foot adjustment means for levelling the rubber foot of the hyperextended rear leg of the hyperextended side frame with the feet of the other three legs of the apparatus.

대표청구항 ▼

A hyperextendible walker apparatus comprising: a first U-shaped side frame including a first front leg and a first rear leg; a second U-shaped side frame including a second front leg and a second rear leg; a crossed brace means for connecting said first and second U-shaped side frames together, said

A hyperextendible walker apparatus comprising: a first U-shaped side frame including a first front leg and a first rear leg; a second U-shaped side frame including a second front leg and a second rear leg; a crossed brace means for connecting said first and second U-shaped side frames together, said cross brace means being rotatably connected to said first and second front legs respectively; a pair of normal open position locking means connected to said cross brace means and to said first and second U-shaped side frames respectively for locking said side frames in a normal open first position with respect to said cross brace means; and, a hyperextendible locking means forming part of said normal position locking means for locking at least one of said side frames in a hyperextended second position which position is extended at least 10°more open than the same side frame when in the normal open first position.