JP2000229576A - Carrying vehicle with sliding tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure a smooth going-up/down of stairs by providing a sliding tool in which a belt is wound around upper and lower pulleys on a side of a carrying vehicle contacting with an angle portion of each step of the stairs so as to turn freely. SOLUTION: In a carrying vehicle in which a pair of wheels 2 are journalled to a lower end of a frame 1 (pivot part) having a substantially rectangular shape viewed from the front and a load receiving base 8 is carried with the frame 1 at an upper position of the wheel 2, sliding tools are respectively provided at both lower ends of the frame 1. The tool 3 is structured such that a belt 5 is wound around between upper and lower pulleys 4A, 4B and the distance between the pulleys 4A, 4B is set to a length exceeding the length obtained by subtracting a wheel 2 size from the height of vertical wall of each step part of stairs. The tool is additionally provided with an agent to prevent generation of disengagement and dropping of the belt 5. Accordingly, at the time of going up and down the stairs, this carrying vehicle with the sliding tools can go up and down the stairs by the aid of the belt 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION In the present invention, stairs have been increased with the development of underground or elevated transportation in accordance with the development of traffic, and the transportation of luggage cannot be done without being aware of the stairs. In the present invention, the up and down stairs can be easily moved with a simple structure.

[0002]

2. Description of the Related Art A conventional luggage carrier mainly focuses on flat-land transportation and does not consider the function of the stairs at all. When facing the stairs, there is no other means than forcible lifting or lifting. In recent years, stair trucks have been devised, but have not been widely used due to their complex structure and high cost due to their unique structure.

[0003]

The prior art has the following disadvantages. The stairs have a structure in which plane portions and vertical portions are alternately continuous. The flat part is filled with the conventional functions, but the running of the vertical part, that is, the right-angled wall, hinders the traveling movement because the wheel 2 is caught in the corner. The issue is how to get over the right-angled wall with simple functions and travel.

[0004]

Means for Solving the Problems (a) The first contact point of the towed inclined carrier pivot 1 on the stairs is the corner where the plane portion and the vertical portion intersect. (B) A slide 3 is provided at a point in contact with the lower corner of the pivot portion 1;
The corner is moved by the slide 3 to prevent the wheel 2 from being caught. (C) If the wheel 2 which has crossed the corner with the sliding tool 3 reaches a plane portion, the wheel 2 moves on a flat ground, approaches the next step, performs the first movement again, and reaches the upper step.

[0005]

[Operation] A slide 3 attached to the lower part 1 of the axle on the side in contact with the stairs of the carrier moves the carrier with the slides 3 at the corners of the stairs, and uses the wheels 2 when the vehicle crosses the corner. Travel around the part.

[0006]

Embodiments of the present invention will be described below. (A) The slide 3 is surrounded by outer plates 6A and 6B, and pulleys 4A and 4B are attached between the outer plates, and a belt 5 is hung between 4A and 4B. The outer plates 6 </ b> A and 6 </ b> B have a function of not hindering the stairs of the belt 5. (B) The distance between the pulleys 4A and 4B of the slide 3 exceeds the length obtained by subtracting the wheels 2 from the height of the right-angled wall. (C) The outer plates 6A and 6B may be provided with a preventive material to prevent the belt 5 from deviating and prevent the belt 5 from sinking. (D) The slide 3 is fixed to the pivot by the stopper 7 or welding. In addition, a loading tray 8 is installed at an appropriate position on the vehicle body. When the present invention is used in such a structure as described above, when loading a carrier and climbing the stairs, climb the stairs in a state where the car is pulled on a flat ground. The slide 3 attached to the pulling pivot 1 easily moves the carrier up the corner of the stairs by the rotation of the belt 5.
The wheels 2 are fished in the air, but land on a flat surface and travel.
This is repeated until the upper stage. When going down the stairs, the operation is performed in the reverse state.

[0007]

The subway or railway is often used to buy food and transport small packages, and there are also high-rise houses without pedestrian bridges or elevators on general roads. According to the present invention, transportation on stairs becomes possible with less labor than before.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the present invention.

FIG. 3 is a partially cutaway view of the present invention.

[Explanation of symbols]

 1 is a pivot part 2 is a wheel 3 is a slide 4 is a pulley 5 is a belt 6 is an outer plate 7 is a stopper 8 is a loading stand

Claims (1)

[Claims] 1. A transport vehicle having a sliding member 3 on a pivot 1 and moving on stairs.