초록 ▼

A transport apparatus having a loading bridge, is movable by hand for transporting loads over stairs. There are two front rollers (3), which are either extendable or variable in their angular position, and two rear rollers (7), which are secured to downwardly extending arms (6). The loading bridge (

A transport apparatus having a loading bridge, is movable by hand for transporting loads over stairs. There are two front rollers (3), which are either extendable or variable in their angular position, and two rear rollers (7), which are secured to downwardly extending arms (6). The loading bridge (1) takes up a rearwardly tilted position when the transport apparatus rests with the rollers (3, 7) on a horizontal surface. The spacing between the front and rear rollers (3, 7) and the roller diameters are selected so that, when climbing a stair, the front rollers (3) rest on an upper tread while the rear rollers (7) simultaneously rest on a lower tread. When the apparatus is not in use, it may be folded to take up but a small space by folding the tiltable hand levers (14) inwardly and by tilting the arms (6) upwardly.

대표청구항 ▼

A transport apparatus comprising: loading bridge means (1) including a floor (5) and a frame (2) surrounding said floor, at least two front roller means (3) and at least two rear roller means (7), load bearing arm means (6) extending downwardly from each side of the loading bridge means (1), means p

A transport apparatus comprising: loading bridge means (1) including a floor (5) and a frame (2) surrounding said floor, at least two front roller means (3) and at least two rear roller means (7), load bearing arm means (6) extending downwardly from each side of the loading bridge means (1), means pivotally mounting said load bearing arm means to said loading bridge means within approximately the middle third of the length of the loading bridge means (1), for angular movement of the load bearing arm means (6) over at least approximately 90°between a downward position at substantially right angles from the loading bridge means and an upward storage position, said rear roller means (7) being mounted at the outer ends of said load bearing arm means (6), at least two lever arm means mounted at the front end of the loading bridge means and extendable and retractable from the front end of the loading bridge means substantially in parallel relative to the floor (5) of said loading bridge means (1), said respective lever arm means being separately individually extendable and retractable, said front roller means (3) being mounted at the ends of said respective lever arm means, said loading bridge means being oriented at an angle with the ground directed upwardly toward the rear when the transport apparatus is placed on a horizontal surface, and wherein the spacing (a) between the front and rear roller means (3,7) and the diameter of the roller means are so selected that upon transport up a set of stairs (22) the front roller means (3) come to rest on an upper stair tread while the rear roller means (7) may simultaneously rest on a lower stair tread, at least two handle arm means (14) mounted at the rear end of the frame (2), each of said handle arm means being separately individually pivotable about a horizontal axis (15) and means for arresting said handle arm means in different positions, thereby to facilitate maneuvering of the transport apparatus.