JPH10287244A - Transport carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely, surely and arbitrarily adjust a pallet area by a simple method. SOLUTION: A transport carriage has a first carriage 2 having at least three wheels 4a to 4c, hand pressing handle frame 5 vertically provided in one end of this first carriage, second carriage 3 successively provided in line with the other end of this handle frame, and a means fixing the first/second carriage 2, 3 to each other in a prescribed position. The second carriage has at least two wheels further with moving forward/backward possible in an advancing direction of the transport carriage 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport trolley, and more particularly to a hand-held transport trolley capable of increasing or decreasing a load area.

[0002]

2. Description of the Related Art Conventionally, transport carts such as wheelbarrows and rear carts have been frequently used as simple transport devices. On the other hand, there are various types of loads to be transported, and it is necessary to prepare large and small transport vehicles having different sizes depending on the size and number of the loads. 2. Description of the Related Art Conventionally, there has been disclosed a carrier in which a small carrier can be connected at any time according to the size of a load (Japanese Utility Model Registration No. 3033533). In addition, a multi-wheeled transport vehicle capable of traveling on uneven surfaces or steps with little resistance has been disclosed (Japanese Patent Application Laid-Open No. Hei 7-108942).

[0003]

However, in the conventional carrier trucks, it is common to increase or decrease the carrier area by connecting the carrier vehicles, and it is possible to arbitrarily increase or decrease the carrier area with one carrier vehicle. There is a problem that it is not possible to do so and it is necessary to secure a required number of transport vehicles to be connected.

[0004] In addition, many conventional multi-wheeled transport vehicles are provided for traveling on uneven surfaces or steps, and if an attempt is made to provide multi-wheels to arbitrarily increase or decrease the area of the loading platform,
There is a problem that it becomes difficult to attach the wheel to the cart.

The present invention has been made to address such a problem, and an object of the present invention is to provide a transport vehicle capable of safely and surely increasing or decreasing the area of a loading platform arbitrarily by a simple method.

[0007]

SUMMARY OF THE INVENTION A transport vehicle according to the present invention is a transport vehicle having a loading area that is increased or decreased. The transport vehicle has a first truck having at least three wheels, and an upright standing one end of the first truck. A hand truck handle frame, a second truck connected to the other end of the handle frame, and means for fixing the first truck and the second truck to each other at a predetermined position. Is characterized by having at least two wheels and being able to move back and forth in the direction of travel of the carrier.

[0008] Further, the transport cart according to the present invention is the first cart.
3 wheels mounted on the lower end of the handle frame 2
Main wheel, and one auxiliary wheel attached to the lower portion of the other end of the handle frame and having a smaller diameter than the main wheel. It is characterized by having the same diameter as the main wheel of one truck.

Further, the means for fixing the first truck and the second truck to each other at a predetermined position is formed by an engaging rod inserted into an engaging hole provided in the first truck and the second truck. Composed,
A holding portion for holding the engaging rod is provided on the handle frame or the side surface portion of the first bogie.

[0010] With such a structure, the first truck and the second truck can be engaged with each other at an arbitrary predetermined position, so that the loading platform area of the transport truck can be increased or decreased. In addition, since the second carriage can move forward and backward in the direction of movement of the carriage and does not spread in the width direction, the carriage can be used even in narrow back alleys. Can be transported in one go. In addition, since the engagement rod has a function of preventing the loaded luggage from falling off, a large amount of luggage can be carried. Further, even if the load weight increases, the vehicle can be easily transported by the function of the auxiliary wheel. When the load is light, the auxiliary wheels do not operate, so that the rotation is facilitated.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a transport trolley according to the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a carrier 1 according to the present invention, FIG.
FIG. 2B shows a rear view, and FIG. The transport trolley 1 is composed of a first trolley 2 and a second trolley 3,
The first bogie 2 has two main wheels 4a, 4a and one sub-wheel 4b, and the second bogie 3 has two wheels 4c, 4c
Are respectively attached. Here, the wheels 4a and 4c have the same diameter, and the auxiliary wheel 4b has a smaller diameter than the main wheel 4c. At the time of normal transportation, as shown in FIG. 2 (c), the transportation trolley 1 connected by the trolley 2 and the trolley 3 is supported by wheels 4a and 4c. In addition, when loading a heavy object, the entire carriage 1 is supported by the wheels 4a, 4b and 4c. These wheels may be fixed or rotatable casters. In addition,
A plurality of sub wheels 4b may be attached. It is preferable to mount a plurality of heavy vehicles on a transport vehicle.

A push handle frame 5 is provided upright at one side end of the first carriage 2. The handle frame 5 can be attached to the carriage 2 so as to be detachable or bendable.

A second truck 3 is connected to the other end of the front of the handle frame 5 so as to be able to advance and retreat in the traveling direction of the transport truck 1. There is no particular limitation on the method of connecting the carts, but it is preferable that the carts 3 are connected in a state where the carts 3 are inserted into the carts 2. In this state, the auxiliary wheel 4b can be attached to the lower part of the bogie 2, and it becomes easy to withstand heavy loads. If the auxiliary wheel 4b can be attached to the lower part of the trolley 2, the lower surface of the trolley 2 may be a frame. One such example is shown in FIG. FIG. 3 is a rear view in the case where the lower surface of the cart 2 is in a frame shape.

The trolley 2 and the trolley 3 have means connected to each other and fixed to each other at a predetermined position. By being fixed to each other, the carrier 1 can be freely operated even when the area of the carrier is increased. Various methods can be used as means for fixing each other, but as means for simply fixing the carriage 2 and the carriage 3,
It is preferable that the first bogie 2 and the second bogie 3 are provided with engaging holes 6a, 6b, and 6c at positions corresponding to each other, and the engaging rod 7 is fitted into the engaging holes 6. The engaging rod 7 may be a handle frame-shaped engaging rod 7a or a bolt-shaped engaging rod 7b. In the case of the handle frame-shaped engaging rod 7a, it is inserted into the engaging holes 6a and 6b,
In the case of the bolt-shaped engagement rod 7b, it is inserted into the engagement hole 6c.
In addition, the handle frame-shaped engaging rod 7a may be inserted in a direction parallel to the traveling direction of the handle frame or in a vertical direction.

It is preferable to provide a holding portion 8 for holding the engaging rod 7a when not used in the handle frame 5,
In the case of the bolt-shaped engaging rod 7b, a chain 9
It is preferable to hold the trolley so as not to be detached from the cart by the method described above.

It is preferable to provide a means for preventing the second carriage 3 from falling off from the first carriage 2. Although there is no particular limitation on the means for preventing the falling off, for example, as shown in FIG.
0, and the second carriage 3 is connected to the first carriage 2 by the stopper 11.
Is preferable. In addition, as shown in FIG. 4, as long as the groove 10 is parallel, it may be a single open groove.

The material of the first cart 2 and the second cart 3 may be wooden, metal such as stainless steel, steel plate, aluminum alloy, or plastics. Further, it is preferable that a non-slip surface, for example, a rubber plate 12 or the like be attached to the surface of the cart.

The transport vehicle of the present invention can be applied to general passageways, rooms such as inns, and manufacturing sites such as factories. Particularly, it is preferable for a small transport vehicle having a loading area of about 0.33 m ² . Small transport vehicles are originally designed for transporting small loads and are convenient to handle, but when the load increases, they cannot be transported at once, and rather transport often takes time.

[0019]

As described above, the transport cart of the present invention has a total of at least five wheels and has means for connecting the first cart and the second cart together and fixing each other.
With a simple method, it is possible to arbitrarily increase or decrease the load area safely and reliably.

Further, since the main wheels and the sub wheels are provided on the first bogie and the main wheels are provided on the second bogie, the vehicle can be easily transported even if the loaded weight varies.

Further, since the first carriage and the second carriage are fixed to each other by the engagement rod, they can be firmly fixed by a simple method. Further, since the load can be prevented from falling by the engagement rod, the transportation becomes easier.

[Brief description of the drawings]

FIG. 1 is a perspective view of an example of a transport vehicle according to the present invention.

FIG. 2 is an example of a transport vehicle according to the present invention.

FIG. 3 is a rear view of another example of the transport vehicle according to the present invention.

FIG. 4 is a perspective view of another example of the transport vehicle according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transport cart 2 1st cart 2 3 2nd cart 4 Wheel 5 Handle frame 6 Engaging hole 7 Engaging rod 8 Holding part 9 Chain 10 Groove 11 Stopper 12 Rubber plate

Claims (3)

[Claims] Claims: 1. A transport trolley having a loading area that increases or decreases,
A first bogie having at least three wheels, a hand-operated handle frame erected on a side end of the first bogie, and a second bogie connected to the other end of the handle frame of the first bogie. And a means for fixing the first truck and the second truck to each other at a predetermined position, wherein the second truck has at least two wheels, and A transport trolley characterized by being movable back and forth in the direction of travel. 2. The three wheels of the first bogie include two main wheels mounted at a lower end of the handle frame,
One auxiliary wheel attached to the lower portion of the other end of the handle frame and having a diameter smaller than that of the main wheel;
2. The transport trolley according to claim 1, wherein the two wheels are attached to the tip of the transport trolley and have the same diameter as the main wheels of the first trolley. 3. The means for fixing to each other comprises an engaging rod inserted into an engaging hole provided in the first truck and the second truck, and holding means for holding the engaging rod. The transporting trolley according to claim 1 or 2, wherein a portion is provided on the handle frame or the side portion of the first trolley.