KR102730182B1 - apparatus for preventing damage to the rear of dump truck - Google Patents

Abstract

The posted content is about a vehicle damage prevention device due to deformation of the rear bumper of a cargo vehicle, which can minimize casualties and vehicle damage by alleviating the impact caused when a rear-end vehicle such as a dump truck is rear-end-collided by the rear bumper.
A vehicle damage prevention device due to deformation of a cargo vehicle rear bumper according to one embodiment of the present specification
It is applied to a vehicle damage prevention device due to deformation of the rear bumper of a cargo vehicle in which the cargo box is dumped to enable unloading of cargo.
Fixed members mounted on both sides of the rear of the vehicle body;
A rotating member having an upper end rotatably connected to the above-described fixed member and a lower end fixed to the above-described rear bumper;
The present invention provides a vehicle damage prevention device due to deformation of a cargo vehicle rear bumper, characterized by comprising: an elastic member which is mounted on a fixed pin that rotatably connects the rotating member to the fixed member, and elastically supports the rear bumper in an initial state while pressurizing the rear bumper in a direction away from the rear tire;

Description

{Apparatus for preventing damage to the rear of dump truck due to deformation of the rear bumper of a truck}

This specification relates to a cargo vehicle rear bumper, and more specifically, to a device for preventing damage to a vehicle due to deformation of a cargo vehicle rear bumper, which minimizes casualties and damage to the vehicle by alleviating the impact generated when a rear vehicle following a dump truck, etc., collides with the vehicle via the rear bumper.

Unless otherwise indicated herein, the materials described in this section are not prior art to the claims of this application and their inclusion in this section is not an admission that they are prior art.

Although not shown in the drawing, in the event of a rear-end collision with a cargo vehicle such as a dump truck, an elastic means (for example, an absorber may be used) that is connected to the rear bumper can reduce the impact force generated in the rear-end collision, thereby reducing damage to the rear of the vehicle.

On the other hand, the aforementioned rear bumper is formed of metal to have rigidity and is fixed as an integral part by being bolted to the body, so that when a rear-end vehicle rear-ends a dump truck, not only is the rear bumper damaged, but the impact force generated during the collision is directly transmitted to the driver or passengers, causing injuries to the driver or passengers.

In addition, the soil, rocks, etc. loaded in the load compartment of a dump truck can be unloaded by dumping at a loading dock, but the soil, rocks, etc. can be collected in one place by reversing the vehicle.

As mentioned above, if the action of unloading rocks, etc. and then reversing the vehicle is repeated, the rear bumper will be bent toward the rear tire due to the weight of rocks, etc. This may cause the rear tire to be damaged by contact with the bent rear bumper.

Considering this, the warped rear bumper needs to be cut off using an oxygen cutter, etc. However, if an oxygen cutter, etc. is not installed at the loading dock, the cutting work will not be easy.

A rear bumper device for a truck is disclosed in the Korean Patent Publication No. 10-1999-0027825 (April 15, 1999).

An embodiment of the present specification relates to a device for preventing damage to a vehicle due to deformation of a cargo vehicle rear bumper, which minimizes damage to human life and vehicle damage by alleviating the impact generated when a dump truck is rear-ended by a vehicle by an elastically supported rear bumper, and reduces time and economic loss due to repair of a damaged bumper.

An embodiment of the present specification relates to a device for preventing damage to a vehicle due to deformation of a cargo vehicle rear bumper, which prevents the rear bumper from being bent toward the rear tire due to soil or rocks, etc. when the vehicle is driven backwards to collect loaded soil or rocks, etc., in one place after unloading them.

In order to achieve the above and other purposes of this specification, according to one embodiment of this specification,

It is applied to a vehicle damage prevention device due to deformation of the rear bumper of a cargo vehicle in which the cargo box is dumped to enable unloading of cargo.

Fixed members mounted on both sides of the rear of the vehicle body;

A rotating member having an upper end rotatably connected to the above-described fixed member and a lower end fixed to the above-described rear bumper;

The present invention provides a vehicle damage prevention device due to deformation of a cargo vehicle rear bumper, characterized by comprising: an elastic member that is mounted on a fixed pin that rotatably connects the rotating member to the fixed member, and elastically supports the rear bumper in an initial state while pressurizing the rear bumper in a direction away from the rear tire.

The vehicle damage prevention device according to the embodiment of the present specification having the above-described configuration due to deformation of the cargo vehicle rear bumper has the following advantages.

By reducing the impact force generated when a dump truck is rear-ended by a vehicle, the elastically supported rear bumper minimizes casualties and vehicle damage caused by rear-end collisions, and reduces time and economic losses caused by repairing damaged bumpers.

In addition, when the vehicle is reversed to collect the soil, stones, etc. that have been unloaded after being loaded into the cargo hold, the rear bumper is prevented from being bent toward the rear tire due to the soil, stones, etc., thereby preventing tire damage due to the rear bumper bending, and making the work of unfolding or cutting a portion of the bent rear bumper unnecessary.

Figure 1 is an excerpt of a main part of a vehicle damage prevention device due to deformation of a cargo vehicle rear bumper according to a preferred embodiment of the present specification.
Figure 2 is a side view of the vehicle damage prevention device illustrated in Figure 1.
Figure 3 is a diagram showing the usage status of the vehicle damage prevention device illustrated in Figure 1.

Hereinafter, a device for preventing damage to a vehicle due to deformation of a cargo vehicle rear bumper according to a preferred embodiment of the present specification will be described in detail with reference to the attached drawings.

Referring to FIGS. 1 to 3, a vehicle damage prevention device due to deformation of a cargo vehicle rear bumper according to one embodiment of the present specification is

It is applied to a device to prevent damage to a vehicle due to deformation of the rear bumper of a cargo vehicle (e.g., a dump truck) whose loading compartment is dumped to enable unloading of cargo.

A plate-shaped fixing member (20) mounted on both sides of the rear of the body (10) by a fastening member (9);

A plate-shaped rotating member (40) whose upper end is rotatably connected to a fixed member (20) by a fixed pin (11) and whose lower end is fixed to a rear bumper (30);

It is characterized by having an elastic member (60) (as an example, a conventional torsion spring may be used, but is not limited thereto) that is mounted on a fixed pin (11) that rotatably connects a rotating member (40) to a fixed member (20) and elastically supports the rear bumper (30) in an initial state while it is pressed away from the rear tire (50).

According to a more preferred embodiment, as shown in FIGS. 1, 2, and 3, the above-described rotating member (40) is characterized by having a stopper (70) for limiting rotation of the fixed member (20) beyond an arbitrary angle.

As shown in Figures 1, 2, and 3, the above-described rotary member (40) is mounted to one side by a fixed pin (12) so as to rotate, and is characterized by having an idle roller (80) for reducing the external pressure transmitted as the rear tire (50) rotates by contacting it when external pressure is applied to the rear bumper (30).

The aforementioned idle roller (80) is characterized by being formed of one of engineering plastic material, rubber material, silicone material or urethane material to reduce the repulsive force when in contact with the rear tire (50) and to have durability and corrosion resistance.

Hereinafter, a device for preventing damage to a vehicle due to deformation of a cargo vehicle rear bumper according to one embodiment of the present specification is described with reference to the attached drawings.

As shown in FIGS. 1 to 3, a conventional dump truck loading box (not shown) capable of loading loads such as soil and rocks is mounted in a dumping-capable manner so that it can be tilted relative to the body (10) by a hydraulic cylinder (not shown).

The upper part of the rotating member (40) is rotatably connected to the lower part of the fixed member (20) mounted on the body (10) by the fastening member (9) by the fixed pin (11). At this time, the rotating member (40) is elastically supported in the initial state by being pressed away from the rear tire (50) by the elastic member (60) (as an example, a typical torsion spring is used) mounted on the fixed pin (11).

The lower part of the aforementioned rotating member (40) is fixed to the rear bumper (30) formed of a conventional metal material by means of a bolt (13) or welding.

When external pressure is applied to the rear bumper (30), an idle roller (80) is installed on one side of the rotating member (40) to reduce the external pressure transmitted by the rear tire (50) as it rotates by contacting it. The idle roller (80) is rotatably mounted by a fixed pin (12).

Accordingly, when a vehicle following behind the dump truck rear-ends and presses the rear bumper (30) toward the body (10) or rear tire (50), the external force pressing the rear bumper (30) can be reduced by the idle roller (80) mounted on the rotating member (40) and rotating by contacting the rear tire (50). (At this time, the diameter of the idle roller (80) is preferably formed larger than the width of the rotating member (40) so that the rear bumper (30) can be pressed and come into contact with the rear tire (50) before the rotating member (40).)

Meanwhile, when a vehicle following behind the dump truck rear-ends the vehicle and presses the rear bumper (30) toward the body (10) or rear tire (50), the rear bumper (30) rotates in the forward direction (clockwise) around the fixed pin (11).

Due to this, the idle roller (80) mounted on the rotating member (40) comes into contact with the rear tire (50) (at this time, the elastic member (60) that elastically supports the rotating member (40) receives a compressive force).

When the external pressure that pressurized the aforementioned rear bumper (30) is removed, the rotating member (40) is rotated in the reverse direction (counterclockwise) around the fixed pin (11) by the elastic restoring force of the elastic member (60).

At this time, when external pressure is not applied to the rear bumper (30), the rotating member (40) is rotatably supported relative to the fixed member (20) to maintain the rear bumper (30) at an arbitrary distance from the rear tire (50), and when the external pressure pressing the rear bumper (30) is removed, the elastic member (60) for returning the rotating member (40) to the initial position is commonly used in the technical field to which this specification belongs, so a detailed description of its configuration and function is omitted.

That is, the idle roller (80) in contact with the rear tire (50) can be separated from the rear tire (50) by pressurizing the rear bumper (30).

At this time, the rotating member (40) equipped with the rear bumper (30) is prevented from rotating at an arbitrary angle or more with respect to the fixed member (20) by the stopper (70) mounted on one side of the fixed member (20) and moving away from the rear tire (50).

Accordingly, when the vehicle is driven backwards to collect the earth, rocks, etc. that have been loaded into the dump truck and then unloaded, and the rear bumper (30) is subjected to external pressure due to the earth, rocks, etc., the rear bumper (30) can be prevented from being bent toward the vehicle body (10) or bent toward the rear tire (50), thereby preventing the rear bumper (30) from coming into contact with the rear tire (50) and causing damage.

Due to this, it becomes unnecessary to cut off a portion of the rear bumper (30) that has been bent toward the vehicle body (10) using an oxygen cutter or to repair the bent portion by straightening it.

Although the above-described specification has been described with reference to exemplary embodiments of the present invention, it will be apparent to those skilled in the art that various modifications and equivalent other embodiments may be made without departing from the essential characteristics of the specification.

Therefore, the embodiments disclosed in this specification are not intended to limit the technical idea but to explain it, and the protection scope of the specification should be interpreted by the technical idea of the claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of rights of this specification.

10; body
11; Fixed pin
12; Fixed pin
20; fixed member
30; rear bumper
40; absence of rotation
50; rear tire
60; elastic member
70; stopper
80; idle roller

Claims (4)

It is applied to a vehicle damage prevention device due to deformation of the rear bumper of a cargo vehicle in which the cargo box is dumped to enable unloading of cargo.
Fixed members mounted on both sides of the rear of the vehicle body;
A rotating member having an upper end rotatably connected to the above-described fixed member and a lower end fixed to the above-described rear bumper;
In a vehicle damage prevention device due to deformation of a cargo vehicle rear bumper, the device comprises: an elastic member which is mounted on a fixed pin that rotatably connects the rotating member to the fixed member and elastically supports the rear bumper in an initial state while the rear bumper is pressed away from the rear tire;
A stopper for limiting the rotation of the above-mentioned rotating member beyond a certain angle with respect to the above-mentioned fixed member;
A device for preventing damage to a vehicle due to deformation of a cargo vehicle rear bumper, characterized in that it comprises an idler roller formed of any one of engineering plastic material, rubber material, silicone material, and urethane material, and mounted so as to rotate on one side of the rotating member, and configured to reduce external pressure transmitted as the rear tire rotates by contacting it when external pressure is applied to the rear bumper. delete delete delete

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