Patent ID: 6186728
Filing Date: 2001-02-13
Classification: B62B,Y10S

Abstract:
A hand operated lift truck comprising:a lower frame, said lower frame being mounted on wheels, said lower frame having first and second longitudinally extending lower frame members, a lower transverse frame structure extending between said first and second longitudinally extending lower frame members;an upper frame, said upper frame having first and second longitudinally extending upper frame members, an upper transversely extending upper frame structure extending between said first and second longitudinally extending upper frame members;an upwardly extending pin member on each of said upper longitudinally extending members, said upwardly extending pin member being located proximate a distal end of each of said longitudinally extending upper frame members;a plurality of linking arms extending between said first lower frame member and said first upper frame member and between said second lower frame member and said second upper frame member, each of said linking arms being pivotably connected to both said upper and lower frame members;a handle pivotably connected to said lower transverse frame structure, and linking members extending between said handle and said upper frame, said handle being moveable between forward and rearward positions, the arrangement being such that when said handle is moved forwardly toward said upper frame, said linking arms permit said upper frame to lie adjacent said lower frame while when said handle is in a rearward position, said upper frame is spaced from said lower frame by said linking arms and supported thereby, said linking arms being angled with respect to the vertical to thereby lock said upper frame in said second position.