JPH04189675A - Transport carriage - Google Patents

Abstract

PURPOSE:To improve the work efficiency in mounting and removing loading and prevent collapse of the loading by moving a seat-like belt on a line of rollers with the loading mounted on the belt so as to enable removing a quantity of the loading from a platform at once or mounting them onto the platform. CONSTITUTION:For mounting loading, a certain degree of loading is mounted on a front part of a platform frame 1, a drive handle 10 is rotated in the direction of an arrow (s), and a seat-like belt 4 is moved from the lower surface side to the upper surface side on a line of rollers 3, so the loading is moved to the rear end side of the platform frame 1 to obtain a stable mounting condition. In the meanwhile, for removing the loading, the handle 10 is rotated in the direction of an arrow (r) to move the seat-like belt 4 from the upper surface side to the lower surface side. The loading is thus moved from the rear end side to the front end side of the platform frame 1, and by moving the seat-like belt 4 even after one end of the loading gets in contact with the floor, the whole body of a carriage including the platform frame 1 is retracted along the lower surface of the loading, thereby the loading can be left on the floor.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transport trolley used for transporting cargo over short distances.

[Conventional technology]

For example, a transportation trolley with a large number of rollers attached to the platform of the trolley to facilitate the loading and unloading of cargo was developed in the 5th century
This method is disclosed in JP-A No. 5-017024, Japanese Utility Model Application Publication No. 62-203780, and the like.

However, even with these trolleys, when a large amount of cargo is piled up on the platform or heavy objects are loaded, it is not always easy to load and unload the cargo, and it is easy for the cargo to collapse during work. Ta.

[Problem to be solved by the invention]

The present invention has been made to solve the above problems, and its purpose is to provide a transportation trolley that can easily load and unload a large amount of cargo or heavy objects and is less likely to collapse. There is a particular thing.

[Means to solve the problem]

The above purpose is to provide a base frame with wheels, a roller row consisting of a large number of rollers rotatably arranged in parallel on the base frame, and an upper surface of the roller row so as to be movable along the roller row. This can be achieved by a transportation trolley characterized by having a sheet-like belt extending from the bottom surface and a belt drive mechanism for moving the sheet-like belt along a row of rollers.

When the sheet-like belt is of a non-endless type with both ends cut, the belt driving mechanism includes a first belt that is fixedly wound around one end of the sheet-like belt extending from the upper surface side of the roller row. The belt is wrapped around a roller,
The second belt, which is fixedly wrapped around one end extending from the bottom side of the roller row, is attached to the roller, and the first and second belts are attached to a transmission mechanism and drive that interlock the rollers and rotate them in the same direction. Preferably, it consists of a power source.

Further, in the case of the sheet-like belt or the endless belt, the belt drive mechanism includes at least one belt-wrapping roller around which the sheet-like belt is wound, and a driving force that rotates the belt in a desired direction. A device consisting of a power source and a transmission mechanism can be utilized.

Note that as the driving power source, any source such as human power, an electric motor, a small internal combustion engine, etc. can be used.

[For I]

With a transport trolley having the above configuration, when loading and unloading cargo, the belt is slowly moved on a row of rollers while the cargo is placed on the sheet-like belt, so that a large amount of cargo can be removed from the platform at once. It can be lowered onto the platform or pulled onto the loading platform, improving work efficiency and preventing cargo from collapsing.

〔Example〕

Hereinafter, the present invention will be specifically explained with reference to the drawings.

FIG. 1 is a partially cutaway perspective view showing an embodiment of a transportation trolley according to the present invention, and FIG. 2 is a partially cutaway side view thereof. In the figure, l is a base frame, 2 is a wheel, and 3 is a large number of rollers 3
a, a row of rollers arranged in parallel, 4 is a sheet-like belt, 5 is a roller around which the first belt is wound, 6 is a roller around which the second belt is wound, 7 and 8 are guide rollers, and 9 is a drive. 10 is a drive handle, 11 and 12 are chains, 13 is a cover that covers the drive mechanism, 14 is a steering wheel, 15 is a steering shaft, and 16 is a hand handle.

As shown in the figure, a wheel 2 is provided on the lower surface near the front end of the base frame 1, and a steering wheel 14 is provided at the rear end, the direction of which can be changed by a hand handle 16.
is attached to the lower end of the steering shaft 15.

A large number of rollers 3a, 3a are rotatably arranged in parallel on the base frame l, forming a roller row 3, and a sheet-like belt 4 is stretched so as to extend from the upper surface to the lower surface of the roller row 3. The majority of the sheet-like belt 4 covers the upper and lower surfaces of the roller row 3 so as to be movable along the roller row 3 from the upper surface side to the lower surface side and from the lower surface side to the upper surface side.

In the illustrated embodiment, a non-endless belt is used as the sheet-like belt 4, and the sheet-like belt 4 is pulled by either one of its ends by a belt drive mechanism described below. or along the roller row 3.

That is, one end of the sheet-like belt 4 located on the upper surface side of the roller row 3 is fixedly wound around the roller 5, and one end located on the lower surface side of the roller row 3 is wrapped around the roller 5.
The belt is tightly wound around the roller (6).

For the second belt winding, sprocket foils for winding the chain are attached to both ends of the roller, one sprocket foil is connected to the sprocket foil at one end of the drive shaft 9 by the chain 11, and the other sprocket foil is connected to the sprocket foil at one end of the drive shaft 9. A chain 12 connects the first belt wrap to a sprocket foil at one end of the roller 5.

Therefore, by rotating the drive handle 10 attached to the other end of the drive shaft 9, the rollers 5 and 6 are interlocked and rotated in the same direction for winding the first and second belts, for example,
In the state shown in FIG.
When the belt is rotated in the direction indicated by , the roller 6 winds up the sheet belt 4 for the second belt winding, and at this time, the roller 5 unwinds the sheet belt 4 for the first belt winding. The sheet-like belt 4 moves on the roller row 3 from the upper surface side to the lower surface side. Conversely, when the drive handle 10 is rotated in the direction shown by the arrow S, the first belt winding will wind around the roller 5 or the sheet belt 4, and at this time, the second belt winding will wind around the roller 6. In order to unwind the sheet-like belt wound around the sheet-like belt, the sheet-like belt 4 moves on the roller row 3 from the lower surface side to the upper surface side.

The guide roller 7 guides the sheet belt from the upper surface of the roller row 3 to the roller 5 for the first belt wrapping, and the guide roller 8 guides the sheet belt from the lower surface of the roller row 3 to the roller 6 for the second belt wrapping. It is designed to guide the sheet-like belt.

Therefore, when loading cargo, the drive handle 10 is rotated in the direction shown by the arrow S with the cargo loaded so as to cover the front end of the platform frame 4, and the sheet belt 4 is moved from the lower surface side to the upper surface side. By moving the cargo toward the rear end of the platform frame, the cargo can be stably loaded. In addition, when unloading the luggage, the handle 10 is rotated in the direction shown by the arrow r, and the sheet-like belt 4 is moved from the upper surface side to the lower surface side, so that the luggage is removed from the rear end side of the platform frame. When the seat belt 4 is moved to the front end side and even after one end of the baggage touches the floor, the seat belt 4 is further moved from the top side to the bottom side.
While the load is held in a fixed position, the entire truck including the platform frame l moves backward along the underside of the load, leaving the load on the floor.

In addition, when the sheet-like belt 4 is an endless belt, the belt drive mechanism includes at least one belt-wrapping roller around which the sheet-like belt is wound, and a driving force source that rotates the belt-wrapping roller in a desired direction. and a transmission mechanism, the sheet-like belt can be arbitrarily run and moved from the upper surface side of the roller row 3 to the lower surface side or in the opposite direction.

Further, as a driving force source for the belt drive mechanism, in addition to human power as in the illustrated embodiment, an electric motor, a small internal combustion engine, or the like may be used.

C Effects of the Invention The present invention is constructed as described above. According to the present invention, when loading and unloading cargo, the belt is slowly moved on the roller row with the cargo placed on the sheet-like belt. By doing so, a large amount of cargo can be unloaded from the loading platform at once and pulled onto the loading platform, improving work efficiency and preventing cargo from collapsing.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and the design of the shape of the base frame, the number of rollers 3a, the number of 3a, the configuration of the belt drive mechanism, etc. may be changed as necessary. Therefore, the present invention encompasses all modifications that may readily occur to those skilled in the art from the above description.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a transportation trolley according to the present invention, and FIG. 2 is a partially cutaway side view thereof.

Claims (1)

[Claims] 1) a platform frame (1) having wheels (2, 14);
A roller row (3) consisting of a large number of rollers (3a, 3a) rotatably arranged in parallel on the base frame, and a roller row extending from the upper surface to the lower surface so as to be movable along the roller row. A transportation trolley comprising: a stretched sheet-like belt (4); and a belt drive mechanism (5-12) for moving the sheet-like belt along a row of rollers. 2) The sheet-like belt (4) is a non-endless belt, and the belt drive mechanism fixes and wraps one end of the roller row of the sheet-like belt from the upper surface side of the first belt-wrapping roller ( 5), a second belt wrapping roller (6) whose one end extending from the lower surface side of the roller row is fixedly wound, and the first and second belt wrapping rollers are rotated in the same direction in conjunction with each other. Transmission mechanism (9 to 12)
) and a driving force source. 3) The sheet-like belt is an endless belt, and the belt drive mechanism includes at least one belt-wrapping roller around which the sheet-like belt is wound, a driving force source and a transmission mechanism for rotating the belt-wrapping roller in a desired direction. The transportation trolley according to claim 1, comprising: 4) The transportation trolley according to claim 2 or 3, wherein the driving force source is human power. 5) The transportation trolley according to claim 2 or 3, wherein the driving force source is an electric motor. 6) Claim 2 or 3, wherein the driving power source is a small internal combustion engine.
The transportation trolley described in .