JP3219769U - Three-wheeled carriage - Google Patents

Abstract

The present invention provides a three-wheeled carriage that can stably transport containers and the like that contain harvested crops, and that can be stably transported without applying a large force even on narrow roads and uneven terrain.
A loading platform 2 composed of a frame, a front wheel 3 pivotally supported near the center of a lower surface of a front portion of the loading platform, a pair of rear wheels 4 provided on a lower lower surface of the loading platform, and a loading platform And a handle 5 for pushing the hand upright at the rear, and the loading platform is formed in a rectangular shape by an L-shaped angle material, and one side of the L-shaped angle material is erected upward from the peripheral edge of the loading platform. Become.
[Selection] Figure 1

Description

   The present invention relates to a three-wheeled carriage for carrying a transported object, in particular, a container such as a basket or bucket containing agricultural products.

In general, when crops are harvested in a field, when they are harvested, they are put in a container such as a basket or bucket on the spot, and are carried to a truck or the like parked around the field. Containers that contain harvested crops are heavy, and it is heavy labor to carry these containers to trucks, etc., and in the case of large fields, the distance to carry them is long, which is harsh for elderly people and women. ing.
Therefore, as a means of carrying containers containing harvested crops, unicycles generally called unicycles, cat cars, and wheels on the left and right sides of the cargo bed are pulled and transported by pulling handles provided in front of the cargo bed. Rear cars are widely used.

A single-wheel-type transport vehicle can be transported by changing the direction by a handle operation using one wheel provided at the front as a support wheel, so it is easier to carry directly with a container and heavy even for powerless elderly people and women Can carry containers.
However, since a single-wheel-type transporter has a single support wheel, the balance between the left and right sides is easily lost and unstable, and if a heavy object is placed on the support wheel, the support wheel will be fully loaded and will sink into the soil, making it difficult to carry. There was a problem that the load was large and the work efficiency was not good.
In addition, when working in the field, it is also necessary to transport large containers that cannot fit in the bucket provided in the single-wheel transport vehicle, long tools, etc., in which case the bucket of the single-wheel transport vehicle is required. It is placed so as to be hung on the upper edge of the paper and transported. Further, it becomes unstable and may be dropped due to vibration during transportation, which is not easy to use.
On the other hand, since the rear car has wheels on the left and right sides of the loading platform, the balance between the left and right is stable, but the loading platform rotates like a seesaw around the rotation axis of the wheels, so that the front-rear balance is It is unstable and the loading platform is slanted when loading, making it difficult to load.
Further, the rear car has a high loading platform, and when placing a container, it must be lifted up to the height of the loading platform, and the loading operation itself is a heavy labor.

In order to solve such a problem, various improvements have been made. For example, in Utility Model Registration No. 3075031 (Patent Document 1), “a bucket for carrying a transported article, a carriage frame on which the bucket is placed, In a push-type transport vehicle having a single support wheel that is pivotally supported at substantially the center of the front side of the carriage frame and a handle, a wheel shaft is assembled to the carriage frame, and a pair of left and right auxiliary wheels are attached to both ends of the wheel shaft. A “hand-held tricycle carrier” is disclosed.
According to the above configuration, the transport vehicle is configured by three wheels, the two auxiliary wheels that are pivotally supported on both sides of the rear portion of the carriage frame, and the one support wheel that is pivotally supported on the front center, so that the cart is stably supported. And it becomes possible to convey the bucket which conveys a production material and other conveyed goods at the time of conveyance, keeping a horizontal state. Also, it is not necessary to lift the handle during transportation, it is only necessary to hold and push out the handle, and even a weak elderly person or woman can easily carry a heavy or long object in a stable state It has become.

Japanese Patent Laid-Open No. 2012-236479 (Patent Document 2) states that in a rear car including a pull handle, at least a pair of rear wheels, and one front wheel, at least a pair of rear wheels as a link configuration of parallel four-bar links. And an upper link portion on which one front wheel is mounted, a lower link portion provided under the upper link portion and integrated with a cargo bed portion, and the lower link with respect to the upper link portion Front and rear rotating link portions linked so that the portion can be rotated in the vertical direction at a position shifted to the rear side of the rear car, and the pull handle is located above the rear rotating link portion. Provided in an extended form, when traveling, the pull handle is turned so as to be tilted forward and fixed to the upper link portion, and the lower link portion as a loading platform portion is set in a solid state. Sometimes Rotation is the "Carts is disclosed to pull toward.
According to the above configuration, when the rear car is stopped, the loading platform is placed flat, so it is easy to load and unload luggage and solve the problem of loading work in transportation using the rear car. Is done.

In addition, Japanese Utility Model Laid-Open No. 06-78149 (Patent Document 3) discloses that a small-diameter rear universal ring in which a rectangular parallelepiped long packing box is attached to the bottom bottom center of the rear of the packing box and the above packing box. A pair of left and right front levers are connected to the front edge of the upper edge of the packing box so as to be able to swing back and forth, and the front ends of the left and right front levers are connected to each other. Connected with a U-shaped or V-shaped lateral stay to form a front receiving member, and a pair of left and right rear levers are connected to the rear edge of the upper edge of the packing box so as to be able to swing back and forth. Are connected by U-shaped or V-shaped lateral stays to form a rear receiving member, and locking means for supporting the front receiving member and the rear receiving member in both the forward and rearward positions are provided. A handcart is disclosed.
According to the handcart, a long object such as a reinforcing bar can be placed between the U-shaped or V-shaped recesses of the front and rear side stays, and the long object can be stably conveyed. Short objects can be stacked, and transported objects of various sizes can be transported stably.
In addition, when the front supporter is tilted to the rearward position and the rear supporter is tilted and locked to the frontward position, the packing box has a compact shape with no front and rear protrusions, and the packing box is empty. Is configured such that the packing box can be stood up with its rear end facing down and accommodated in an elevator or a warehouse.

Utility Model Registration No. 3075031 JP 2012-236479 A Japanese Utility Model Publication No. 06-78149

The hand-held three-wheeled vehicle described in Patent Document 1 can be transported by simply pushing the handle without lifting the handle. However, the bucket has a tray shape, and the bucket containing the harvested crops is kept in a stable state. In addition, when placing the container, the container must be lifted up to the height of the bucket, and the work of placing a heavy container containing crops is a heavy labor.
In addition, the rear car described in the above-mentioned Patent Document 2 is easy to load with the loading platform portion being flat, but the crop harvesting work site is soil, the ground is uneven rough, There are many cases where waste is scattered, so it is not suitable for solid placement. In addition, the rear car has a link structure and is provided with a rotation mechanism and is complicated in structure. Further, if the drive means is provided with a hydraulic cylinder device, it is difficult to reduce the manufacturing cost. In addition, a complicated structure is prone to failure, and there is concern about durability.

In the handcart described in Patent Document 3, the front wheels are provided on the left and right of the front part of the packing box. May be buried in the soil, and operability is not good for placing and transporting heavy containers.
Furthermore, the hand-held three-wheel transport vehicle described in Patent Document 1 and the hand-carried vehicle described in Patent Document 3 are configured such that a small-diameter rear wheel is provided with respect to a large-diameter front wheel. The rear wheel has an auxiliary role, and the front wheel mainly receives the load of the transported goods. Therefore, at the time of transportation, the handle is pushed against the load applied to the front wheel, and a considerable force is required.
In such a state, the container is placed unstablely as described above, or the carrying work of reciprocating many times on the uneven terrain does not proceed efficiently.
In view of the above problems, the present invention can stably transport containers and the like that contain harvested crops, and can stably transport large fields and narrow rough roads and uneven terrain without applying a large force. The purpose is to provide a three-wheeled carriage.

The inventor has solved the above problems by the following means.
(1) A loading platform composed of a frame, a front wheel pivotally supported near the center of the front lower surface of the loading platform, a pair of rear wheels provided on the rear lower surface of the loading platform, A three-wheeled carriage comprising a handle for pushing pushed up at the rear.
(2) The loading platform is formed in a rectangular shape by an L-shaped angle material, and one side of the L-shaped angle material is erected upward from a peripheral edge of the loading platform (1) The three-wheeled carriage described in 1.
(3) The three-wheeled carriage according to (1), wherein the front wheels and the pair of rear wheels are large-diameter wheels having a diameter of 200 to 300 mm.

The following effects are exhibited by the cart cover body and the cart of the present invention.
<1> A three-wheeled carriage according to the present invention is provided on a loading platform composed of a frame, a front wheel pivotally supported near the center of the lower surface of the front portion of the loading platform, and a lower rear surface of the loading platform. Because it consists of a pair of rear wheels and a handle for standing pushing at the rear of the loading platform, there is only one front wheel. Without being buried in the soil or being taken off by the handle, and it is free to rotate and has a small turn, so that it can travel in any direction and has high operability.
Further, since the loading platform is composed of a frame and there is no lower plate or the like, the soil and dust falling from the containers such as the basket and the bucket do not remain on the loading platform when the agricultural products are transported, and cleaning work is unnecessary.
<2> Further, in the three-wheeled carriage according to the present invention, the cargo bed is formed in a rectangular shape by an L-shaped angle material, and one side of the L-shaped angle material is erected upward from the peripheral edge of the cargo bed. Since it becomes a stopper, the container is prevented from slipping during transportation, and stable transportation is possible.
In addition, by using an L-shaped angle material, the structure is simple, there is no damage or failure, and high durability is provided.
<3> In the three-wheeled carriage according to the present invention, the front wheel and the pair of rear wheels are configured with large-diameter wheels having a diameter of 200 to 300 mm. It does not become defective, and even if the transported goods are heavy, the wheels can be driven comfortably without being buried in the ground, and it is easy to handle and easy to use.

The perspective view for description of the Example of the three-wheeled trolley | bogie in this invention. The side view of the Example of the three-wheeled trolley | bogie in this invention. The top view of the Example of the three-wheeled trolley | bogie in this invention. Explanatory drawing which shows the use condition of the Example of the three-wheeled trolley | bogie in this invention

An embodiment of the three-wheeled carriage according to the present invention will be described with reference to the drawings.
1 is a perspective view for explaining an embodiment of a three-wheel carriage according to the present invention, FIG. 2 is a side view of the embodiment of the three-wheel carriage according to the present invention, and FIG. 3 is a top view of the embodiment of the three-wheel carriage according to the present invention. is there.
In the figure, 1 is a three-wheeled carriage, 2 is a loading platform, 2a is a stopper, 3 is a front wheel, 4 is a rear wheel, 5 is a handle, and 20 is a wheel mounting auxiliary section.

As an embodiment according to the three-wheeled carriage of the present invention, as shown in the figure, a three-wheeled carriage 1 includes a loading platform 2 and a front wheel 3 pivotally supported near the center of the front lower surface of the loading platform 2. And a pair of rear wheels 4 provided on the lower surface of the rear part of the cargo bed 2 and a handle 5 for pushing manually provided on the rear part of the cargo bed 2.
The loading platform 2 is composed of a frame and does not have a top plate or a bottom plate. Thereby, it is prevented that the soil and garbage which fall from a conveyed product are mounted in the loading platform 2. FIG.

As a feature of the three-wheeled carriage 1 according to the present invention, the loading platform 2 is formed of an L-shaped angle material. The loading platform 2 is formed in a rectangular shape with an L-shaped angle material, and one side of the L-shaped angle material forming the rectangle is configured to stand upward from the peripheral edge of the loading platform 2. One side of the L-shaped angle material erected upward from the peripheral edge of the loading platform 2 becomes a stopper 2a when the conveyed product is placed on the loading platform 2, and the conveyed product falls during transportation. To prevent.
In addition, by using the L-shaped angle material, the structure can be simple, the manufacturing cost can be suppressed, the strength is high, and the load carrier 2 having high durability without breakage or failure can be obtained.
The L-shaped angle member constitutes the loading platform 2 and serves as a stopper 2a for preventing the fall of the transported material, and thus has a strength sufficient to withstand it. Examples of the material include iron, aluminum, stainless steel, and the like. Particularly, an aluminum L-shaped angle material is suitable because it is a light and strong three-wheeled carriage 1 as a whole. Also, if the L-shaped angle material has a thickness of about 3 mm to 4.5 mm, it will have the strength to stably transport even heavy ones without worrying about the weight of the crops harvested in the container. preferable.

  In addition, in the attachment of the front wheel 3 pivotally supported on the front lower surface of the loading platform 2 and the rear wheel 4 provided on the lower rear surface, a wheel mounting assisting portion 20 is provided so as to bridge to the opposite sides of the frame constituting the loading platform 2. Thus, the strength of the frame can be further improved.

In addition, the loading platform 2 is formed with a size that allows a container for storing agricultural products to be placed thereon. Therefore, when the size of the container varies depending on the type of crop, it is preferable to form the loading platform with a size suitable for each container.
The three-wheeled carriage 1 according to the present invention is particularly large if the carrier 2 is formed of a frame made of an L-shaped angle member and a container or the like can be stably placed on the carrier 2. Is not limited, and various design changes can be made without changing the gist of the present invention.

In the three-wheeled carriage 1 according to the present invention, a front wheel 3 is pivotally supported near the center of the front lower surface of the cargo bed 2, and a pair of rear wheels 4 are provided on the rear lower surface of the cargo bed 2.
The front wheel 3 is composed of a single wheel and is rotatably provided. The front wheel 3 has a small turn and is easy to change in an arbitrary traveling direction.
The front wheel 3 and the rear wheel 4 are constituted by large-diameter wheels. Although all the wheels may have the same diameter or may have different diameters, all the wheels generally have a large diameter, for example, wheels having a diameter of about 200 mm to 300 mm. As a result, even if the loading platform 2 is separated from the ground by a certain distance and the object to be transported is heavy, the loading platform 2 is less likely to come into contact with the ground or an obstacle, and can be stably transported without applying unnecessary force.
In the present embodiment, both the front wheel 3 and the rear wheel 4 are wheels having a diameter of approximately 200 mm. In this way, by making all the wheels almost the same diameter, it becomes easy to carry with light force, no load is applied to one place, and even if any one wheel is buried in the soil, Can be easily transported by the force applied to the two wheels.
Also, if the rear wheel 4 is not a small wheel like an auxiliary wheel but a large wheel, when it is difficult to transport on a rough road, the front wheel 3 should be lifted lightly and transported only by the rear wheel 4. You can also.
Further, when the container is loaded, the height of the loading platform 2 is as high as the container is lifted from the ground, and the loading operation can be performed without lifting the container.

  As shown in FIG. 3 (a), the rear wheel 4 is provided on the lower surface of the rear part of the cargo bed 2 so that the overall width can be suppressed to the width of the cargo bed 2, and the rear wheel 4 can be transported without worrying about the rear wheel 4. However, as shown in FIG. 3 (b), it may be configured to be located further outside the width of the rear part of the loading platform 2, for example, when the diameter of the rear wheel 4 is larger than that of the front wheel 3. The design can be changed as appropriate according to the application.

Moreover, the handle 5 for pushing pushed up by the rear part of the loading platform 2 should just be a shape which is easy to push the three-wheeled carriage 1, and the shape in particular is not limited. And the handle | steering-wheel 5 may be the same material as the L-shaped angle material which comprises the loading platform 2, and a different material may be sufficient as it.
Further, the handle 5 may be one that is firmly fixed to the loading platform 2 and may be a removable type, and may be a type that can be easily stored and folded forward when not in use. .

FIG. 4 is an explanatory view showing a use state of the embodiment of the three-wheeled carriage in the present invention. A container 6 is placed on the loading platform 2 of the three-wheeled carriage 1 according to the present invention. The container 6 is stably placed on one side of the L-shaped angle material constituting the loading platform 2 by a stopper 2 a erected upward on the periphery of the loading platform 2.
Furthermore, since the front wheel 3 is composed of a single rotatable wheel, it is easy to transport in any direction even on narrow vineyards and uneven terrain, making it easy to transport in any direction. .
Furthermore, since no bucket or the like is provided on the loading platform 2, loading and unloading work is easy without lifting the container 6 and placing it on the loading platform 2. Can do.

  The three-wheeled carriage according to the present invention is suitable for transporting containers such as baskets and buckets that store harvested crops, but because it has a three-wheeled structure, it is easy to handle even on rough terrain. It can be applied to any field that transports transported goods by making it a loading platform that is sized according to the type of transported goods, such as civil engineering, construction work sites, and distribution warehouses.

1 Three-wheel truck 2 Loading platform 2a Stopper 3 Front wheel 4 Rear wheel 5 Handle 6 Container 20 Wheel mounting auxiliary part

Claims (3)

  A loading platform composed of a frame, a front wheel pivotally supported near the center of the lower surface of the front portion of the loading platform, a pair of rear wheels provided on the lower rear surface of the loading platform, and a rear portion of the loading platform. A three-wheeled carriage characterized by comprising a handle for pushing.   The three-wheeler according to claim 1, wherein the loading platform is formed in a rectangular shape by an L-shaped angle member, and one side of the L-shaped angle member is erected upward from a peripheral edge of the loading platform. Expression trolley. The three-wheeled carriage according to claim 1, wherein the front wheel and the pair of rear wheels are large-diameter wheels having a diameter of 200 to 300 mm.