JP7390818B2 - horizontal transport trolley - Google Patents

Description

The present invention relates to a horizontal transport vehicle that horizontally transports objects such as materials and equipment at a construction site or the like.

Traditionally, there has been a demand for automation in the construction industry to compensate for the shortage of workers, and one of the most important tasks is the transportation of materials, which requires a large amount of human labor. There are many cases where self-propelled carts are used to automate material transportation, and there is a tendency for self-propelled carts that are particularly suited to site conditions to be adopted. As such a self-propelled truck, for example, a truck as shown in Patent Document 1 is known.

Japanese Patent Application Publication No. 06-32227

By the way, a load placed on a cart without casters is loaded and transported together with the cart on the plane of the pedestal of the automatic transport cart. However, when a load is placed on a cart with casters, if the load is loaded together with the cart onto the plane of the pedestal of the automatic transport cart, the cart with casters will move during transportation.

Therefore, when transporting an object loaded on a cart with casters using an automatic transport cart, it is necessary to install a locking mechanism on the wheels of the casters and change the cart with casters to a locked state, or There was a problem in that the load had to be reloaded onto the unsupported cart before being transported, which narrowed the range of objects that could be transported by the automatic transport cart. Furthermore, if an attempt is made to expand the range of objects that can be transported by an automatic transport vehicle, a locking mechanism must be added for this purpose, and the workload of lock processing increases.

The present invention has been made in view of the above, and is a horizontal conveyance system that can be conveyed with a simple configuration regardless of whether it is equipped with casters or not, when conveying objects on a cart as one body. The purpose is to provide trolleys.

In order to solve the above-mentioned problems and achieve the objects, a horizontal transport vehicle according to the present invention is provided, in which a load is placed on a load to be transported or a vehicle with casters, and the load is transported together with the vehicle with casters. A horizontal transport trolley for horizontally transporting an object, comprising a main body having a pedestal for depositing the picked-up load or the object to be transported, and equipped with a driving wheel and a steering wheel, and the trolley. a forklift section attached to the main body for loading/unloading the load or the transported object from the outside to the pedestal section; a telescoping mechanism for extending and contracting the forklift section in the front-rear direction; a lifting mechanism that moves up and down; and a control unit that controls the drive wheel, the telescoping mechanism, and the lifting mechanism; , a support member that is raised and lowered by a support member elevating mechanism, and the control unit controls the support member elevating mechanism to raise the support member when picking up the conveyed object, and the lower end of the caster is caused to rise and fall on the pedestal. The trolley with casters is supported so as not to come into contact with the surface of the part.

Moreover, in the above-mentioned invention, the other horizontal conveyance truck based on this invention is characterized by the said support member being supported with respect to the said base part by the scissor-like scissor link mechanism.

Further, in the above-mentioned invention, in another horizontal conveyance vehicle according to the present invention, the control unit controls the control unit based on control information sent from an external management server indicating whether or not the conveyance target is the conveyed object. , characterized in that the lifting and lowering of the support member is controlled.

According to the present invention, when an object to be transported on a cart is transported as one body, it is possible to transport the object with a simple configuration regardless of whether it is equipped with casters or not.

FIG. 1 is a front view showing a schematic configuration of a horizontal transport vehicle according to an embodiment of the present invention. FIG. 2 is a plan view showing a schematic configuration of a horizontal transport vehicle according to an embodiment of the present invention. FIG. 3 is a diagram showing a specific example of the support member elevating mechanism. FIG. 4 is an explanatory diagram (part 1) illustrating the operation of picking up a load placed on a cart with casters as an integrated object to be transported. FIG. 5 is an explanatory diagram (part 2) illustrating the operation of picking up a load placed on a cart with casters as an integrated object to be transported.

EMBODIMENT OF THE INVENTION Below, with reference to drawings, embodiment of the horizontal conveyance trolley|bogie based on this invention is described in detail. Note that the present invention is not limited to this embodiment.

As shown in FIGS. 1 and 2, the horizontal transport vehicle 10 according to the present invention is configured to transport a load such as materials and equipment or an object to be transported (a load is placed on a cart with casters, and the load is mounted on a cart with casters). This is a truck for horizontally transporting objects (to be transported together with the truck) , and includes a truck body 11 and a forklift section 12.

The trolley body 11 has a pedestal portion 11c for depositing a picked-up load or an object to be transported, and has a steering wheel 13 and a driving wheel 14. A load is placed on the left and right (X direction) surfaces 11a of the pedestal portion 11c, and an object to be transported is placed on the support member 30 .

The steering wheels 13 and the driving wheels 14 are provided at the four corners of the lower surface of the truck body 11. The steering wheels 13 are located on the front left and right sides of the lower surface of the truck body 11, and are used to freely move the horizontal conveyance truck 10 electrically. The drive wheels 14 are located on the rear left and right sides of the lower surface of the trolley body 11, and are electrically operated to freely move the horizontal transport vehicle 10 while supporting the horizontal transport vehicle 10 and the load of the load or object to be transported loaded on the horizontal transport vehicle 10. It is for moving to. This steering wheel 13 also supports the horizontal transport vehicle 10 and the load of the load or object to be transported loaded on the horizontal transport vehicle 10. In order to realize free movement of the horizontal transport vehicle 10, the steering wheels 13 and the drive wheels 14 are steered independently of each other.

A pair of support members 30 are provided on both left and right sides of the base portion 11c. The surface of the support member 30 is stored flush with the surface 11a of the pedestal portion 11c, and is raised and lowered in the vertical direction (Z direction) by the support member elevating mechanism 18.

Specifically, as shown in FIG. 3, the support member 30 includes a support member main body 31 and a scissor link mechanism 35. The support member body 31 is stored in the groove 11b so that the surface 31a of the support member body 31 and the surface 11a of the pedestal portion 11c are flush with each other. The support member main body 31 is raised and lowered by a lifting cylinder 32 of the support member lifting mechanism 18. At this time, the support member main body 31 is supported by a scissor-like scissor link mechanism 35. The scissor link mechanism 35 is constructed by assembling two link members 33 and 34 in a scissor shape (X-shape).

An omnidirectional moving wheel 37 is attached to the lower front end of the link member 34 . This omnidirectional moving wheel 37 is a non-driven wheel that supports the scissor link mechanism 35 so as to be movable along the groove 11b, and can be configured by, for example, an omni-wheel (registered trademark). The upper rear end of the link member 34 is connected to the support member main body 31 so as to be able to slide on a long hole 36 extending in the Y direction. The other link member 33 has both ends rotatably connected.

The forklift section 12 is for loading/ unloading loads or objects to be transported from a yard (not shown) onto the horizontal conveyance truck 10, and is attached to the truck body 11 via a telescoping mechanism 15 and a lifting mechanism 16. This forklift portion 12 includes two long box-shaped forks 12a that are arranged parallel to each other in the front-rear direction (Y direction) and extend in the front-rear direction, and a standing wall portion at the base end (=Y direction side end portion) of the fork 12a. and has. Further, the forklift section 12 is arranged at the center of the truck body 11.

(Pickup operation)
A case will be described in which a load placed on a cart with casters and an object to be transported 101 that is integrated with the cart with casters are picked up. First, when picking up the transported object 101 , the control unit 17 first brings the trolley body 11 close to the transported object 101 (FIGS. 4(a1) and (a2)). Thereafter, the forklift section 12 is moved toward the transported object (Y direction) by the telescoping mechanism 15, and the fork is inserted under the transported object 101 (FIG. 4 (a2, b2)).

Thereafter, the control unit 17 raises the forklift unit 12 using the lifting mechanism 16 and picks up the transported object 101 with the fork (FIG. 4(a3)). Thereafter, the control unit 17 uses the telescoping mechanism 15 to pull the forklift unit 12 on which the transported object 101 is placed rearward (in the -Y direction) (FIGS. 5(a4) and (b4)).

Thereafter, the control unit 17 causes the support member elevating mechanism 18 to raise the support member 30 to a height H, supports the cart with casters so that the lower end of the caster does not contact the surface 11a, and then uses the elevating mechanism 16 to raise the support member 30 to a height H. 12 and returns to the default position (FIG. 5 (a5)). In addition, in FIG. 5(a5), the lower end of the caster is in a state raised from the surface 11a by a height ΔH. As a result, the bottom of the cart with casters is supported by the support member 30. As a result, the horizontal transport vehicle 10 can transport the object 101 placed thereon.

Note that, when unloading the transported object 101 , the control section 17 drives the forklift section 12 and the support member 30 in the reverse order of unloading.

Further, the control unit 17 controls the lifting and lowering of the support member 30 based on control information sent from the external management server 100 as to whether the object to be transported is an object to be transported .

10 Horizontal conveyance truck 11 Dolly body 11a Surface 11b Groove 11c Pedestal portion 12 Forklift portion 12a Fork 13 Steering wheel 14 Drive wheel 15 Telescoping mechanism 16 Elevating mechanism 17 Control portion 18 Supporting member elevating mechanism 30 Supporting member 31 Supporting member main body 31a Surface 32 Elevating Cylinder 33, 34 Link member 35 Scissor link mechanism 36 Elongated hole 37 Omnidirectional moving wheel
100 management servers
101 Object to be transported

Claims (3)

A horizontal conveyance truck for horizontally conveying a load to be conveyed or an object to be conveyed, in which the load is placed on a cart with casters and the load is transported together with the cart with casters ,
a trolley body having a pedestal portion for depositing the picked-up cargo or the transported object, and including a driving wheel and a steering wheel;
a forklift unit that is attached to the truck body and that loads/unloads the load or the transported object from the outside to the pedestal unit;
an expansion mechanism that expands and contracts the forklift portion in the front-rear direction;
a lifting mechanism that lifts and lowers the forklift portion in the vertical direction;
a control unit that controls the drive wheel, the telescoping mechanism, and the elevating mechanism;
Equipped with
The pedestal part has a support member whose surface is flush with the surface of the pedestal part and is stored in the pedestal part, and which is raised and lowered by a support member raising and lowering mechanism,
When the object to be transported is to be loaded, the control unit controls the support member lifting mechanism to raise the support member, and supports the cart with casters so that the lower end of the casters does not contact the surface of the pedestal part. A horizontal transport vehicle that is characterized by: The horizontal transport vehicle according to claim 1, wherein the support member is supported with respect to the pedestal portion by a scissor-like scissor link mechanism. 2. The control unit controls the lifting and lowering of the support member based on control information sent from an external management server as to whether or not the object to be transported is the object to be transported. 2. The horizontal transport vehicle according to 2.

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