JP2000272518A - Carriage serving as stepladder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make usages as a carriage and a stepladder compatible, in trimming of garden trees and working in a fruit garden for which a wheel barrow and a stepladder is used frequently, or in working using the carriage and the stepladder. SOLUTION: A base end part of a handle frame 5 is freely foldably attached to a carriage main body 1 provided with a wheel 2, the handle frame 5 is fixed in a condition extended with respect to the main body 1 when used, and the main body 1 and the handle frame 5 forms two legs to bring the base end part of the frame 5 into a table part of a stepladder when the handle frame 5 is fixed in a folded condition. A grounding cap 13 and a grounding frame 14 are provided in a tip of the main body 1 and a tip of the frame 5 to be prevented from being buried into the ground. The wheel 2 is arranged to locate a tip of the wheel 2 of the carriage main body 1 in a position a little higher than a plane where the tip of the main body 1 and the tip of the frame 5 contact with the ground, when folded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ladder that can also be used as a ladder for transporting luggage or a unicycle.

[0002]

2. Description of the Related Art Unicycles have been used in farmhouses and home gardens so that when transporting earth and sand, fertilizers, seedlings, harvests, and the like, luggage can be transported without difficulty on narrow agricultural roads and ridges. Unicycles (for civil engineering) are convenient, and most of them have a garden, and they are used every day, such as heavy objects and trash.

[0003] On the other hand, a foldable stepladder is generally used for care of garden trees that require work at a height that cannot be reached, pruning of fences, and harvesting fruits in an orchard. Transporting to the ground is cumbersome, and you may not need to use a stepladder at first, but you may need it at your work site. In the latter case, it is inconvenient to return to stepladder. Also, in an office or the like, both a trolley and a stepladder are often used for carrying luggage and loading / unloading luggage at high places.

[0004]

The problem to be solved by the present invention is to use a unicycle and a stepladder in the care of garden trees or in an orchard, or to use a dolly and a stepladder. It is an object of the present invention to provide a stepladder trolley that can be used.

[0005]

In order to solve the above-mentioned problems, a stepladder trolley according to the present invention is provided such that a base end portion of a handle frame is foldably attached to a trolley body having wheels. When the frame can be fixed in an extended state with respect to the bogie main body, and when the handle frame is fixed in a folded state, the bogie main body and the handle frame become two legs, and the base end of the handle frame becomes It is configured to be a stepladder.

[0006] In this stepladder trolley, a pedestal is provided at the end of the trolley body and the end of the handle frame to prevent it from being buried when it reaches the ground. Further, at the time of folding, the wheels are arranged such that the tips of the wheels of the bogie main body are located at a position slightly higher than a plane where the front end of the bogie main body and the front end of the handle frame meet.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to embodiments shown in the drawings.

FIG. 1 is a side view showing an embodiment in which the present invention is applied to a stepladder / unicycle, and FIG. 2 is a perspective view thereof. In the figure, reference numeral 1 denotes a bogie main body as a loading portion, 2 denotes wheels, 3 denotes a wheel mounting frame, 4 denotes legs, 5 denotes a handle frame, and 6 denotes steps when a stepladder is used.

The base end of the handle frame 5 is rotatably attached to the center of a U-shaped frame receiver 7 with a pin 8 as shown in FIG. 3, and the base end of the handle frame 5 is cut in a circular shape. So that the tip does not hit the frame receiver 7 during rotation. Near the base end of the handle frame 5, holes 5a for fixing the handle are provided, and fixing holes 9, 10 provided in the frame receiver 7 so that the handle frame 5 can be fixed when using a stepladder and when using a unicycle. The angle can be fixed by screwing the fixing screw 11 so that the hole 5a is aligned with the hole 5a. The fixing screw 11 is connected to the pin 8 by a chain 12 so as not to be lost when the fixing screw 11 is detached from the carriage body 1.

A method of using the stepladder / unicycle having the above structure will be described. When using as a regular unicycle,
The fixing screw 11 is removed from the stepladder state shown in FIG. 1, and the handle frame 5 is turned to the position indicated by the dashed line in FIG.
1 is screwed into the fixing hole 9 to fix the handle frame 5. This allows normal usage as a unicycle.

When used as a stepladder, the handle frame 5 is turned to the position shown by the solid line in FIG. 1, and the fixing screw 11 is screwed into the fixing hole 10 to fix the handle frame 5. In this state, the tip of the handle frame 5 and the tip of the bogie main body 1 serve as feet that reach the ground, and the horizontal bar of the handle frame 5 is used as a stair to go up to step 6 to perform work. Should the tip of the handle frame 5 sink into the ground, the wheels 2 support the ground, which is safe.

A grounding frame 14 is provided at the tip of the bogie body 1 and a grounding cap 1
By providing 3, it is possible to prevent sinking into the ground.

Although the above is an embodiment in which the present invention is applied to a unicycle, the present invention can also be applied to a four-wheeled truck for carrying luggage. In that case, the handle is folded toward the wheel side or the bed side so that it can be fixed at a certain angle, and the handle or the bed can be climbed up as a step.

[0014]

As described above, according to the present invention, both can be used in the care of garden trees and orchards, which often use a unicycle and a stepladder, or in an operation using a dolly and a stepladder. , Did not inadvertently bring a stepladder,
It is very convenient because you can use it immediately when you need to stepladder suddenly.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment in a case where the present invention is a stepladder / unicycle.

FIG. 2 is a perspective view showing an embodiment in a case where the present invention is a stepladder / unicycle.

FIG. 3 is a perspective view of a main part of a base end mounting portion of the handle frame.

[Explanation of symbols]

1 bogie body, 2 wheels, 3 wheel mounting frame,
4 legs, 5 handle frames, 5a holes, 6 steps, 7 frame receivers, 8 pins, 9 and 10 fixing holes,
11 fixing screw, 12 chains, 13 ground cap, 14
Grounding frame

Claims (3)

[Claims] 1. A base end portion of a handle frame is foldably attached to a bogie main body provided with wheels. When the bogie is used, the handle frame can be fixed in an extended state with respect to the bogie main body, and the handle frame is folded. The dolly body and the handle frame are configured as two legs when fixed in a stuck state, and the base end of the handle frame is configured as a stepladder base. 2. The stepladder trolley according to claim 1, wherein a pedestal is provided at an end of the trolley body and an end of the handle frame to prevent the trolley from being buried when the trolley arrives on the ground. 3. The trolley body is arranged such that, at the time of folding, the wheel ends of the bogie main body are located at a position slightly higher than a plane where the front end of the bogie main body and the front end of the handle frame meet. Item 4. A stepladder trolley according to item 1 or 2.