KR20200087584A - Extend install assy of truck cargo box sash frame - Google Patents

Abstract

The present invention relates to a loading box extension assembly for increasing a loading capacity of a loading box for a cargo truck, which is able to extend the length of the loading box of the cargo truck of 1.2 tons within the limit allowable by the law, and increase the loading capacity of the loading box for the cargo truck. In the loading box extension assembly for increasing a loading capacity of a loading box for a cargo truck, which is made by cutting the central part of a sash frame (200) supporting a lower side of the loading box for a cargo truck and connecting and installing the assembly in between the cut parts, the assembly (100) comprises: a ′C′-shaped extension unit (110) whose both end part are welded and installed on the cut parts of the sash frame; ′C′-shaped internal reinforcement units (120) and ′L′-shaped external reinforcement units (130), which are longer than the extension unit; and a cross reinforcement unit (140) placed between the internal reinforcement units.

Description

{Extend install assy of truck cargo box sash frame} to increase the loading capacity of the freighter

The present invention relates to a loading box extension assembly for extending the loading capacity of a loading truck to increase the loading capacity of the loading truck by extending the length of the 1.2 ton loading truck within the limits permitted by law.

In general, in the case of a 1.2-ton truck, it is legally permitted to increase the length of the rear overhang to 1/2 of the wheelbase (distance from the front wheel axle to the rear wheel axle).

Therefore, in recent years, various technologies have been proposed to increase the loading capacity of freight trucks to increase the loading capacity, and examples thereof are as follows.

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First, there is a patent publication No. 10-1993-0005827 (published on April 20, 1993) [Volume vehicle volume increase device], which is capable of changing the capacity of a cargo box according to the requirements of the cargo. It suggests a way to increase the volume by moving the auxiliary loading box so that the load can be arbitrarily adjusted within the loading capacity range of the freight vehicle.

In addition, there is Patent Publication No. 10-2006-0034123 (published on April 21, 2006) [cargo vehicle loading box extension structure]. This patent discloses the side of a vehicle loading box to facilitate loading of irregularly shaped cargo. Through the opening structure of the cargo vehicle, which opens and closes the gate to extend the loading space of the truck loading box, the side gate of the truck loading box can be opened to increase the width of the loading box. It is aiming at the effect.

Furthermore, there is a patent publication No. 10-2011-0106052 (published on September 28, 2011) [a stack of a top vehicle equipped with a double extension], which discloses the loading of the inside of a stack mounted on the back of the top vehicle. A double extension device is provided that can extend the space at the same time in the horizontal direction and in the lower direction or the upper direction. When driving, the vehicle is operated with the extension devices folded, and if you want to do business in the parking state, the interior space of the loading box is horizontal. It is intended to be used as a game hall, such as a screen shooting range, as an outdoor karaoke, as a real-time video synthesis space, or as a food sales vehicle by expanding the direction and the downward direction or the horizontal direction and the upper direction at the same time to expand the inner floor area and space of the tower In this case, a loading box of a top vehicle equipped with a double extension device is proposed.

In addition, there is a patent publication No. 10-2012-0010419 (published on Feb. 3, 2012) [Extended structure of multi-purpose transport vehicle], this patent discloses a multi-purpose transport vehicle stack that increases the vertical volume ratio of the stack. Regarding the extension structure, by additionally installing the side fence and the connecting fence in the loading box, it is possible to significantly increase the vertical capacity of the loading box without significantly changing the loading box structure of the existing multi-purpose transport vehicle. In addition to the transportation of cargo, a larger amount of cargo can be loaded, thereby improving the efficiency of transportation.

However, all of these prior arts are not a method of increasing the frame itself, but merely presenting techniques for increasing the loader itself, so they have low reliability in terms of durability and safety, and thus are difficult to obtain official certification, and have low mass productivity and versatility. Corresponds to technology.

Korean Registered Patent No. 10-1675913: Frame assembly for capacity increase of loading box and freight car using the same. Korean Registered Patent No. 10-1570108: Frame assembly for capacity increase of load box and freight car

The present invention was invented to solve the above conventional problems, the purpose of which is,

First, the durability and safety after extending the freighter is equal to or better than the durability and safety before extending the freighter,

Second, the driving stability and ride comfort after extending the freighter are equal to or better than the driving stability and riding comfort before extending the freighter,

Third, it is to provide a loading box extension assembly for increasing the loading capacity of the loading box to increase productivity due to easy assembly in extending the loading box.

The problem solving means configuration of the loading box extension assembly for increasing the loading capacity of the freighter loading box according to the present invention for achieving the above object is,

In the loading box extension assembly for increasing the loading capacity of the freight truck loading box by cutting the central portion of the chassis frame 200 supporting and supporting the lower portion of the loading box and connecting the assembly between the cut parts,

In the assembly 100, between the cut both chassis frames 200, the "c" shaped extensions 110 having the same shape and thickness as the chassis frame are positioned so that both ends are cut off of the chassis frame. Parts and welding are installed,

The inside of the welded tool and the cut-out both chassis frames are fitted with a “c” shaped inner reinforcement 120 having a length longer than the length of the tool, in close contact with each other,

The outer side of the welded installation tool and the cut-out both chassis frames have a "b" shaped outer reinforcement 130 having a length longer than the length of the tool, so as to be in close contact with each other,

The inner overlapping portion, the extension portion, the outer reinforcing portion, the mutually overlapping portions of the chassis frame are penetrated by a bolt and fixed by a nut to be integrated,

Each end of the cross reinforcing tool 140 is coupled between the inner reinforcing tools, and is made of a bolt through the upper and lower parts of the inner reinforcing tool and the cross reinforcing tool and fixedly installed with a nut.

With the configuration as described above, the loading box extension assembly for increasing the loading capacity of the loading box according to the present invention, as described in the above object, durability and safety after extension of the loading box is the same as durability and safety before extension of the loading box Or better than that, and the driving stability and ride comfort after extending the cargo tray are the same or better than the driving stability and ride comfort before extending the cargo tray, and increase the productivity due to simple assembly in extending the cargo tray. have.

1 is a perspective view of a state in which a conventional freight car loading box is extended.
Figure 2 is a perspective view showing a state in which the cargo tray is formed extending using the loading box extension assembly of the present invention,
Figure 3 is a perspective view of a main part excerpt showing a state in which the freighter loading box is extended using the loading box extension assembly of the present invention,
Figure 4 is an exploded perspective view of the loading box extension assembly of the present invention,
Figure 5 is a perspective view of the inner reinforcement excerpt from the loading box extension assembly of the present invention,
Figure 6 is a perspective view excerpt of the outer reinforcement in the stacker extension assembly of the present invention,
7 is a cross-extraction excerpt perspective view from the loading box extension assembly of the present invention,
Figure 8 is a cross-sectional view of a state in which the loading box extension assembly of the present invention is installed.

The present invention relates to a loading box extension assembly for extending the loading capacity of a freighter loading box so as to increase the loading capacity of the loading box by extending the length of the 1.2 ton freight loading box within the limits permitted by law, and refer to the accompanying drawings. The embodiments are described below.

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Figure 2 is a perspective view showing a state in which the freighter loading box is extended using the loading box extension assembly of the present invention, Figure 3 is a perspective view showing a main part extruded showing the state in which the freighter loading box is extended using the loading box extension assembly of the present invention, Figure 4 Is an exploded perspective view of the stacker extension assembly of the present invention, FIG. 5 is a perspective view of the inner stool extract from the stacker assembly of the present invention, FIG. 6 is a perspective view of the outer stool extract from the stacker extension assembly of the present invention, and FIG. 7 is the present invention It is a perspective view excerpted from the cross-reinforcement tool in the stacker extension assembly of FIG.

The present invention is to cut the central portion of the chassis frame 200 supporting and supporting the lower portion of the cargo vehicle loading box to increase the loading capacity of the cargo vehicle loading box, and connecting the assembly 100 between the cut parts to install it. The configuration is, both ends are welded to the cut portion of the chassis frame, "c" shaped extension 110, the length of the extension than the length of the "c" shaped inner reinforcement 120 and It consists of a "b" shaped outer reinforcement 130 and a cross reinforcement 140 between both inner reinforcements.

In the above configuration, the overall shape of the chassis frame 200 takes the form of a rectangle as shown in FIG. 2, and the central portion of the chassis frame 200 is cut and bisected in the width direction of the chassis frame 200.

In addition, the extension 110, the inner reinforcement 120 and the outer reinforcement 130 are respectively installed on both sides of the cut chassis frame 200 to connect the cut both chassis frames 200. It is provided two by one.

And the "c" shaped tool 110 is formed to have the same shape and thickness as the chassis frame 200 between both cut portions of the chassis frame 200.

The reason for forming the "c" shaped tool 110 to have the same shape and thickness as the chassis frame 200 is that the tool 110 cuts the central portion of the chassis frame 200. And positioned between the cut portion to form a surface having the same height as the inner and outer sides of the chassis frame 200 and the extension 110 in a welded state with the cut portion of the chassis frame 200 installed. It is for sake.

It is preferable that both ends of the tool 110 are connected and installed by means of welding with the ends of both cut portions of the chassis frame 200.

The "c" shaped inner reinforcement 120 of the present invention is longer than the length of the extension 110 so as to fit into the inside of each of the extension 110 and the cut chassis frame 200 that are installed in the welding. Make it long.

The reason is that the inner reinforcement 120 crosses the extension 110 and fits into the chassis frame 200, and then uses the bolts and nuts to secure the inner reinforcement 120 and chassis frame 200, and This is to enhance the durability of the extension frame 110 and the chassis frame 200 at the same time as reinforcing the welds at both ends of the extension port 110 by fixing the inner reinforcement port 120 and the extension port 110.

The reason for forming the inner reinforcing sphere 120 in a “c” shape is because the extension frame 110 as well as the chassis frame 200 are formed in a “c” shape. This is to improve the durability of the extension part of the loading box by fixing the bolts and nuts after fitting the inner reinforcement part 120 in close contact with the inside of the extension part 110 and the chassis frame 200.

The "b" shaped outer reinforcing tool 130 of the present invention is fixed by being coupled in close contact with each of the extensions 110 installed in the welding and the outer side of the cut chassis frame 200 to be fixed. It is preferable that the length is longer than the length of the extension 110.

The reason is that the outer reinforcement 130 crosses the extension 110 and is closely coupled to the chassis frame 200, and then the outer reinforcement 130 and the chassis frame 200 using bolts and nuts. This is to enhance the durability of the extension frame 110 and the chassis frame 200 at the same time as reinforcing the welds at both ends of the extension port 110 by fixing the outer reinforcement port 130 and the extension port 110.

The reason for forming the outer reinforcement 130 in a "b" shape is that the upper end is coupled to the outer side of the extension 110 and the chassis frame 200 so that the top is the extension 110 and the chassis frame 200 By not protruding to the top of the, it is to make a close contact between the lower surface of the freighter loading box and the upper surface of the extension port 110 and the chassis frame 200, and to securely fix accordingly.

A plurality of bolt holes are formed in the inner reinforcing tool, extension, outer reinforcing tool, and chassis frame, and bolts, which are fixing members, penetrate through the bolt holes, and are fixed by nuts.

In addition, between the two inner reinforcing spheres 120 of the present invention, each end of the cross reinforcing sphere 140 is fitted, and a bolt as a fixing member penetrates the inner reinforcing sphere 120 and the cross reinforcing hole 140 and is fixed with a nut. By installing, the durability of the extension portion of the chassis frame 200 was improved.

In one embodiment of the cross reinforcement 140, as shown in FIGS. 3 and 7, upper coupling portions 142 of a plane wider than the central portion are formed on both sides of the upper portion of the vertical portion 141, and the lower portion Is formed by forming a lower coupling portion 143 of a plane having the same width from one end to the other.

The reason for forming the upper coupling portion 142 having a wider width than the central portion on both sides of the vertical portion 141, the contact area with the extension piece 121 formed at the central upper portion of the inner reinforcement 120 This is to improve the durability according to the solid bonding strength by increasing the bonding strength by increasing the number.

The coupling between the upper coupling portion 142 and the extension piece 121 is made of a bolt passing through and fixing with a nut.

And the lower coupling portion 143 of the cross reinforcement 140 is overlapped with the extension piece 121 formed at the lower center of the inner reinforcement 120, the overlapped portion is bolted through and fixed with a nut.

In addition, in the center of the outer surface of the vertical portion 141 in the cross reinforcing tool 140, a holder bracket 144 is fixedly installed, and under the holder bracket 144, a "∪" shaped to protect the power transmission shaft of the lorry. The holder 145 is installed. The reason for installing the holder 145 is to protect the power transmission shaft of the freight vehicle.

On the other hand, of the divided chassis frame 200, the chassis frame 200 at the rear is installed with a cross bar 210, and a holder 220 of a “∪” shape is fixedly installed at the center of the cross bar 210. A support 221 supporting the upper portion of the holder 220 was installed on the upper portion of the holder 220.

The reason for installing the holder 220 is to protect the power transmission shaft, and the reason for installing the support 221 on the upper portion of the holder 220 is to enhance the durability of the holder 220, as well as power. This is to protect the transmission axis.

In addition, the inner reinforcement 120, the outer reinforcement 130, the center of both ends of the cross reinforcement 140 is applied to the inner reinforcement 120, the outer reinforcement 130, the cross reinforcement 140 The impact applied to the chassis frame 200 was minimized by forming the respective recesses 122, 131, and 146 that absorb stress.

As described above, the loading box extension assembly for increasing the loading capacity of the freight loading box of the present invention as described above, the durability and safety after extension of the loading box is equal to or better than the durability and safety before extending the loading box, as described in the above effect. In addition, the driving stability and ride comfort after the extension of the freight carrier are equal to or better than the driving stability and ride comfort before the extension of the freight carrier, and there is an advantage to increase productivity due to easy assembly in extending the freight carrier.

100: assembly 110: tool
120: inner reinforcement 121: extension
122: groove 130: outer reinforcement
131: groove 140: cross reinforcement
141: vertical portion 142: upper coupling portion
143: lower coupling portion 144: holder bracket
145: holder 146: groove
200: chassis frame 210: crossbar
220: holder
221: support

Claims (7)

In the loading box extension assembly for increasing the loading capacity of the freight truck loading box by cutting the central portion of the chassis frame 200 supporting and supporting the lower portion of the loading box and connecting the assembly between the cut parts,
In the assembly 100, between the cut both chassis frames 200, a “c” shaped tool 110 having the same shape and thickness as the chassis frame is located, so that both ends are cut portions of the chassis frame. Is installed and welded,
Inside the welded tool and the cut-out both chassis frames, a "c" shaped inner reinforcing tool 120 having a length longer than the length of the tool is tightly coupled to be in contact with each other.
The outer side of the welded installation tool and the cut-out both chassis frames have a "b" shaped outer reinforcement 130 having a length longer than the length of the tool, so as to be in close contact with each other,
The inner overlapping portion, the extension portion, the outer reinforcing portion, the mutually overlapping portions of the chassis frame are penetrated by a bolt and fixed by a nut to be integrated,
Between the inner reinforcement, each end of the cross reinforcement 140 is coupled to penetrate the upper and lower parts of the inner reinforcement and the cross reinforcement with bolts and fixed by a nut, which extends the loading compartment for increasing the loading capacity of the freighter Assembly.
According to claim 1,
The cross reinforcing tool 140 is formed on both sides of the upper portion of the vertical portion 141, the upper coupling portion 142 having a wider width than the central portion is formed, and the lower portion is a lower portion of the plane having the same width from one end to the other. A loading box extension assembly for increasing the loading capacity of the freighter loading box, characterized in that the coupling portion 143 is formed.
According to claim 2,
In the center of the outer surface of the vertical portion 141, a holder bracket 144 is fixedly installed, and the lower portion of the holder bracket is provided with a "∪" shaped holder 145 that protects the power transmission shaft of the lorry. Stacker extension assembly to increase the stacking capacity of the freighter.
According to claim 1,
In the upper and lower centers of the inner reinforcement 120, the upper coupling portion 142 and the lower coupling portion 143 of the cross reinforcement 140 are overlapped and fixed with a bolt and a nut. Stacking box extension assembly for increasing the loading capacity of the truck loading box, characterized in that 121 is formed. According to claim 1,
Among the divided chassis frames 200, a rail 210 is installed at a rear chassis frame, and a holder 의 having a “∪” shape that protects a power transmission shaft of a lorry is fixedly installed at the center of the rail. A stacker extension assembly for increasing the loading capacity of a truck loader, characterized in that a support (221) supporting the upper part of the holder is installed on the upper part of the holder.
According to claim 1,
Grooves (122,131,148) that absorb stress applied to the inner reinforcement, outer reinforcement, and cross reinforcement (140) at the centers of both ends of the inner reinforcement (120), outer reinforcement (130), and cross reinforcement (140). ) Is formed to form a loading box extension assembly for increasing the loading capacity of the freight box.
According to claim 1,
The outer reinforcing tool 130, a loading box extension assembly for increasing the loading capacity of the freighter loading box, characterized in that formed to have a height that is not exposed to the top surfaces of the extension 110 and the chassis frame 200.

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