Load lifting device for fully electric unmanned transport vehicles

Abstract

To provide an electric pantograph type lift system device as a vertical movement device, which can transfer a load loaded on the top plate of a fully electric unmanned transport vehicle to another transport vehicle of a different height with a small amount of effort. [Solution] The electric pantograph lift system device has a base plate 1 for mounting the device on the top plate of a fully electric unmanned guided vehicle, and a top plate 2 for placing loads on it, with guide rails 1b and mounting brackets provided on the top surface of the base plate 1, and an electric piston 6 attached. Guide rails 1b and mounting brackets are provided on the underside of the top plate 2, and a pantograph assembly is rotatably attached to the mounting brackets of the base plate 1 and the top plate 2. An electric remote control device plate 5 is attached to the shorter side of either the base plate 1 or the top plate 2, and an electric remote control device is attached to the electric remote control device plate 5. Loads can be easily transferred to the loading platform of another transport vehicle of a different height with little force.

Description

[Technical Field]

[0001] This invention relates to a device that allows luggage loaded on an all-electric unmanned transport vehicle to be moved up and down. [Background technology]

[0002] Currently, fully electric unmanned transport vehicles in use only have cargo loaded onto their top surfaces, which creates the inconvenience of having to manually lift and lower the cargo when transferring it to another transport vehicle of a different height. Summary of the Invention [Problem to be solved by the invention]

[0003] If the all-electric unmanned transport vehicle is equipped with a device that can mechanically move the cargo on the top plate up and down to match the height of the other transport vehicle when transferring the cargo loaded on the top plate to another transport vehicle of a different height, the cargo on the top plate can be simply slid sideways onto the other transport vehicle of a different height, which would enable significant labor savings. [Means for solving the problem]

[0004] This invention aims to solve the above problem by installing an existing system that can move cargo up and down on a fully electric unmanned transport vehicle.

[0005] First, the fully electric unmanned transport vehicle is equipped with a pantograph-type electric lift system that can move cargo up and down on the top surface.

[0006] Furthermore, this pantograph type lift system is structured so that it can be easily operated by using a commercially available electric remote control device 10.

[0007] In this invention, we have adopted the simplest pantograph lift system with the aim of supplying the above-mentioned pantograph-type electric lift system to the market as an inexpensive and lightweight product. [Effects of the Invention]

[0008] As mentioned above, by installing a pantograph-type electric lift system that can move cargo up and down on the top of an all-electric unmanned transport vehicle, it becomes possible to easily move the cargo loaded on the top to other transport vehicles of different heights. Furthermore, when using this all-electric unmanned transport vehicle to harvest crops, when harvesting fruits that grow on trees high above the ground, this electric lift system can be used to raise the storage container to nearly the height of the fruit, which is expected to make the fruit harvesting and storage work much easier. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of an electric pantograph type lift system according to the present invention; [Figure 2] This is an example (photo) of an electric remote control device for an electric pantograph type lift system of the present invention (commercially available). [Figure 3] 1 is a side view of the electric pantograph lift system of the present invention when fully extended. FIG. [Figure 4] FIG. 4 is a front view of FIG. 3. [Figure 5] 1 is a side view of the electric pantograph lift system of the present invention when fully retracted. [Figure 6] FIG. 6 is a front view of FIG. 5. [Figure 7] 1 is a front view of the assembly diagram of the pantograph part of the electric pantograph type lift system of the present invention; FIG. [Figure 8] FIG. 8 is a side view of FIG. [Figure 9] 1 is an assembly diagram of the base plate of the electric pantograph lift system of the present invention. [Figure 10] FIG. 10 is a side view of FIG. 9. [Figure 11]1 is an assembly diagram of the electric pantograph lift system of the present invention; FIG. [Figure 12] FIG. 12 is a side view of FIG. [Figure 13] FIG. 10 is a front view of a mounting bracket for fixing a pantograph. [Figure 14] FIG. 14 is a side view of FIG. 13. [Figure 15] This is a three-dimensional view of a U-shaped iron guide rail for pantograph operation. [Figure 16] FIG. 2 is a three-dimensional view of a pantograph bar. [Figure 17] FIG. 2 is a front view of the electric piston connecting fitting. [Figure 18] FIG. 18 is a side view of FIG. [Figure 19] 1 is a drawing of a roller connecting rod. [Figure 20] 1 is a drawing of a roller. [Figure 21] Roller mounting bolt [Figure 22] FIG. 1 is a diagram of a flanged bush. [Figure 23] FIG. 2 is a diagram of a pantograph fulcrum shaft. [Figure 24] FIG. 10 is a diagram of a pantograph set bolt. [Figure 25] FIG. 1 is a diagram of an electric remote control panel. [Figure 26] FIG. 10 is a diagram of an electric piston coupling pin. [Figure 27] This is an example (photo) of a remote controller for the electric remote control device of the electric pantograph lift system of the present invention (commercially available). DETAILED DESCRIPTION OF THE INVENTION [Example]

[0010] An embodiment of the present invention will be described below with reference to FIGS. The electric pantograph lift system of the present invention is incorporated between a base plate 1 for mounting the device on the top plate of an all-electric unmanned guided vehicle and a top plate 2 for loading luggage.

[0011] The base plate material 1a is a thick plate made of iron or aluminum and has a rectangular shape, and is provided with a plurality of mounting bolt holes 1e around its periphery to align with the positions of the mounting screw holes of the all-electric unmanned guided vehicle for fixing it to the top plate of the all-electric unmanned guided vehicle.

[0012] A U-shaped iron or aluminum guide rail 1b for operating the pantograph is welded to the top surface of the base plate 1a at the position shown in FIG. 9 so that the open portions of the U-shape face each other on the left and right in the longitudinal direction.

[0013] Mounting brackets 1c for fixing the pantograph are welded to the left and right sides of the guide rail 1b, which is attached to the base plate 1a by welding or bolts, etc., at positions close to the inner surface of one end of the guide rail in the longitudinal direction, as shown in Figure 9.

[0014] In addition, at a position opposite to the longitudinal position of the base plate 1a described in the previous paragraph, a base 1d for mounting an electric piston for operating an electric pantograph is attached to the center of the base plate 1a by welding or bolts at the position shown in Fig. 9. This base 1d for mounting the electric piston is made of a thick plate made of iron or aluminum, and is provided with a screw hole 1f for mounting the electric piston.

[0015] The top plate 2 for loading luggage is a thick plate made of iron or aluminum, similar to the base plate 1a, and has a rectangular shape, with multiple holes 2a around its periphery for attaching belts or ropes to secure luggage.

[0016] A U-shaped iron guide rail 1b for operating the pantograph is attached to the upper surface of the base plate material 1a on the top plate 2, and is attached to the underside of the top plate 2 in the same position and in the same form as the base plate 1 by welding or bolts, etc.

[0017] The top plate 2 is fitted with mounting brackets 1c for fixing the pantograph attached to the top surface of the base plate 1, which are also attached to the underside of the top plate 2 by welding or bolts, etc., in the same form as the base plate 1, one on each side, in a slightly different position from the base plate 1 as shown in Figure 11.

[0018] Next, an assembly state 3 of the pantograph shown in FIGS. 7 and 8 will be described. Two types of pantographs are required: an outer pantograph rod 3a and an inner pantograph rod 3b, but both use the same rod 3c.

[0019] The rod 3c has three through holes, the first of which is a hole 3d in the center of the rod 3c for connecting the outer rod 3a and the inner rod 3b. One end of the rod 3c has an attachment hole 3e for setting the pantograph rod 3c on the base plate 1 and the top plate 2, and the other end has a hole 3f for attaching a roller 3g necessary for the pantograph to function.

[0020] First, the roller 3g is attached to the hole 3f of the outer rod 3a for attaching the roller 3g. The roller 3g is generally made of resin or iron, or uses a ball bearing, but in this example, a resin material is used.

[0021] To make the roller 3g, first assemble the roller 3g onto the shaft 3i of the roller mounting bolt 3h, which the roller 3g fits into, then insert it into the roller 3g mounting hole 3f of the rod 3c. A commercially available flat washer and spring washer are inserted into the threaded portion 3j of the roller mounting bolt 3h, and then tightened with a commercially available nut. At this point, it is necessary that the roller 3g be able to rotate freely. One rod 3a in this state is made on each side.

[0022] Assembly of the inner rod 3b begins with joining two rods 3c, and for this, an electric piston connecting metal fitting 4 is required.

[0023] The electric piston connecting fitting 4 consists of a connecting shaft member 4d for connecting the left and right rod members 3c and an electric piston connecting bearing 4a, and the electric piston connecting bearing 4a is attached to the center part of the connecting shaft member 4d by welding or bolts, etc.

[0024] The electric piston connecting metal fitting 4 is attached to the central position of the connecting member 4 shown in FIGS. 7 and 8 by welding or bolts.

[0025] Before assembling the electric piston connecting fittings 4 to the rod 3c with welding or bolts, etc., insert the roller connecting rods 3q into the holes 3f of the left and right rods 3c, and make sure that the shafts 3r of the roller connecting rods 3q, which have the same diameter as the holes 3f of the rods 3c, are set into the holes 3f of the rods 3c, respectively. After that, install the rollers 3g into the roller assembly shafts 3s of the roller connecting rods 3q, install commercially available flat washers and spring washers into the end threaded portions 3t of the roller assembly shafts 3s, and tighten with commercially available nuts. At this time, it is necessary that the rollers 3g be able to rotate freely.

[0026] The completed assembly of the bar material 3a is attached to the left and right outer sides of the completed assembly of the bar material 3b described above.

[0027] At this time, a resin flanged bushing 3k is installed between the rods 3a and 3b, the pantograph fulcrum shaft 3m is inserted into the inner diameter 3l of the flanged bushing 3k, a commercially available flat washer and spring washer are installed into the threaded portion 3n of the pantograph fulcrum shaft 3m, and then it is tightened with a commercially available nut. At this time, it is necessary that the rods 3a and 3b move smoothly relative to each other.

[0028] The pantograph section 3 of the electric pantograph lift system assembled through the above-mentioned series of operations is installed in the bifurcated section 1ca of the pantograph set fitting 1c for setting the pantograph on the base plate 1 and the top plate 2, and the pantograph set bolts 3o are installed from one side of the holes 1cb of the pantograph set fitting 1c, and a commercially available spring washer is installed in the threaded section 3p of the pantograph set bolt 3o, and then tightened with a commercially available nut 3. At this time, it is a necessary condition that the pantograph should be able to rotate.

[0029] To operate this electric pantograph type lift system, a commercially available electric remote control device 10 shown in Figure 2 is used. The electric remote control device panel 5 is attached to either the base plate 1 or the top plate 2 by welding or bolts, and the electric remote control device 10 is then attached thereto.

[0030] The electric piston 6 is set on a base 1d for mounting the electric piston 6, which is attached to the base plate 1, and fixed in place using commercially available bolts and spring washers.

[0031] The connecting portion 6a at the tip of the electric piston 6 is inserted into the groove portion 4c of the electric piston connecting fitting 4, and the electric piston connecting pin 6b is inserted through the pin hole 4b of the electric piston connecting fitting 4 and passes through the other pin hole 4b of the electric piston connecting fitting 4. After that, a commercially available split pin is inserted into the split pin hole 6c at the tip of the passed-through electric piston connecting pin 6b, and the tip of the split pin is bent to fix the electric piston connecting pin 6b.

[0032] This electric pantograph type lift system is completed by connecting the electric piston 6 and a commercially available electric remote control device 10 shown in Figure 2 with electrical wiring.

[0033] Bolts, shafts, pins, etc. are plated, and iron products are plated or painted to provide long-term rust prevention for the product.

[0034] Next, the operation of this electric pantograph lift system will be described. The electric pantograph lift system is activated by pressing with a finger either of the up and down operation buttons on the remote controller 11 that operates the electric remote control device 10 of the electric pantograph lift system.

[0035] When it is desired to stop the operation of this electric pantograph lift system, the up / down operation button on the remote controller 11 can be pressed again with a finger to stop it at any position.

[0036] After loading the luggage onto the top plate 2 of this electric pantograph type lift system, the luggage is secured with a belt or rope to prevent it from falling off the top plate 2 of this electric pantograph type lift system.

[0037] After loading of cargo onto the top plate 2 of this electric pantograph lift system is completed, when moving the fully electric unmanned transport vehicle equipped with this electric pantograph lift system, safe driving is possible by returning the electric pantograph lift system to its fully retracted position. [Industrial Applicability]

[0038] This invention can be used not only for farming but also for dairy farming, poultry farming, civil engineering, etc. [Explanation of symbols]

[0039] 1 base plate 1a Base plate material 1b Guide rail 1c Mounting bracket 1ca Pantograph set bracket fork 1cb Pantograph set metal fitting hole 1d Base for mounting the electric piston 1e Mounting holes for fully electric automated guided vehicles 1f Electric piston mounting hole 2. Top plate 2a Hole for attaching a belt or rope, etc. 3 Pantograph assembly state 3a Outer pantograph rod 3b Inside pantograph rod 3c bar material 3d Holes for joining the outer and inner bars 3e Holes for setting the pantograph rod material on the base plate and top plate 3f Hole for attaching roller to pantograph 3g roller 3h Roller mounting bolt 3i Shaft into which the roller is fitted 3j Roller mounting bolt thread 3k resin flanged bushing 3l Inner diameter of resin flanged bush 3m pantograph fulcrum shaft 3n Threaded part of pantograph fulcrum shaft 3o Pantograph set bolt 3p Pantograph set bolt thread 3q Roller connecting rod 3r Shaft with the same diameter as the rod hole of the roller connecting rod 3s Roller assembly shaft 3t Threaded end of roller assembly shaft 4 Electric piston connecting hardware 4a Electric piston coupling bearing 4b pin hole 4c Groove 4d joint shaft material 5 Electric remote control panel 6 Electric piston 6a Electric piston connection part 6b Electric piston connecting pin 6c Cotter pin hole 10 Electric remote control device 11 Remote Controller

Claims

1. An electric pantograph lift system device that is mounted on the top of a fully electric unmanned transport vehicle as a device for moving loads up and down.

2. In order to safely carry out the work of moving luggage at a place away from the facility, an electric remote control device 10 is installed in the electric pantograph type lift system device, and the device can be operated by a remote controller 11, and an electric pantograph type system is installed.

3. Because the fully electric unmanned transport vehicle is wide in structure, it is easier to use and more cost-effective to install two inexpensive, lightweight small devices rather than making a large device with increased strength to match its size, which is an electric pantograph lift system device.

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