KR20110139846A

KR20110139846A - Rollover prevention and impact absorbing bumper for vehicle

Info

Publication number: KR20110139846A
Application number: KR1020100059917A
Authority: KR
Inventors: 윤근수
Original assignee: 윤근수
Priority date: 2010-06-24
Filing date: 2010-06-24
Publication date: 2011-12-30
Also published as: KR101180720B1

Abstract

PURPOSE: An overturn preventing and a shock absorbing bumper are provided to prevent a secondary accident due to the getting out of a traffic lane by changing the impact energy into the rotational energy through a rotating member. CONSTITUTION: An overturn preventing and a shock absorbing bumper comprises a vehicle body panel(100), a plurality of supporters(300), a support pin(450), a rotating member(400), a frame(200), a bumper beam(500), an absorber(600) and a bumper cover(700). The vehicle body panel is installed at the front and behind of a vehicle. A plurality of supporters is installed in one side of the vehicle body panel. The support pin is perpendicularly installed in the supporter. The rotating member is rotated around the support pin. The bumper beam is supported with the frame. The absorber is installed in the front surface of the bumper and the impact is absorbed.

Description

Rollover Prevention and Impact Absorbing Bumper for Vehicle}

The present invention relates to a shock-absorbing bumper, and more particularly, a shock absorber caused by a collision between a center separator, a guard rail, and another vehicle is primarily absorbed by the bumper, and the rotating member rotates a part of the impact energy. The present invention relates to an anti-overturn and shock-absorbing bumper that can change the direction of energy and prevent the vehicle from overturning and reduce the shock more reliably.

Recently, due to the development of the industry, the number of automobiles is rapidly increasing. However, the car culture has not been able to meet the number of cars owned and still remains at the level of underdeveloped countries. Especially, the post-war collision between cars due to speeding and lack of safety distance is a part of life that can be commonly seen around.

The car loss and the loss of life due to such a car crash are considerable, and bumpers are installed at the front and rear of the car as a shock absorber that can minimize the shock transmitted to the car and the driver in the event of a crash.

Bumpers absorb shocks in the event of a car crash, which initially protruded slightly from the steel body, but large bumpers were used, which is now commonly referred to as energy absorbing bumpers.

A bumper that is generally used is a RIM (Reaction Injection Molding) bumper, and a bumper is made of a synthetic resin such as urethane. The bumper is becoming a component that serves as a decoration by not only shock absorption but also a design integrated with a vehicle body.

The basic configuration of the bumper is composed of a bumper cover, an observer having a function of relieving the impact during the shape maintenance and collision of the bumper cover and a shape restoration, and a bumper beam that absorbs the energy during the shape maintenance and the collision through elastic deformation or plastic deformation.

The most important performance required for a bumper is its degree of shock absorption. The degree of shock absorption means that the shock is absorbed more and less when the shock is applied from the outside. When the shock absorber of the bumper is small, the strength of the bumper is strong, so that the amount of deformation during the collision is small, but the impact on the collision object such as a pedestrian or a building, the driver and the passenger is large. On the contrary, when the shock absorber of the bumper is large, the strength of the bumper is weak, so that a part of the shock is absorbed by the bumper during the collision, so that the impact on the collision object, the driver and the occupant is weak, while the amount of deformation of the bumper is large.

If a vehicle collides with a fixed structure such as a median, guard rail, or building while driving, or collides with another vehicle in motion, the bumper absorbs a certain amount of shock and reduces the bodily injury of the occupant. Problems that lead to a major accident due to a vehicle crashing out of a lane, overturned by an impact with a median or guard rail, or a second collision in a driving lane or sidewalk of another lane due to a departure from an opposite lane, another lane or road There is this.

Therefore, the present invention was created in order to solve the above problems, and primarily absorbs the shock generated by the collision accident in the bumper, and the rotating member recovers the direction while changing a part of the impact energy to the rotational energy. It is an object of the present invention to provide an anti-overturn and shock-absorbing bumper that can prevent the overturning and reduce the impact more reliably.

An object of the present invention as described above is a body panel installed in the front and rear of the vehicle; A plurality of supports provided on one side of the vehicle body panel; A support pin provided perpendicular to the support; A rotating member in which a first support pin insertion hole is formed at one side of the center to be rotatable about the support pin; A frame provided at one side of the front panel of the vehicle body panel and having a bumper stay at a terminal thereof; A bumper beam supported by the frame; An observer provided at a front portion of the bumper beam to absorb an impact; And a bumper cover provided at the front portion of the observer and having an exposure hole 710 formed at a position corresponding to the rotating member so that the rotating member can be exposed to the outside. Can be.

At this time, the support is made of a cross-section '' 'shape, the through plate having the same central axis so that the support pin can be inserted into the upper plate and the lower plate, respectively.

In addition, a support plate parallel to the upper plate and the lower plate is further provided at the center of the upper plate and the lower plate of the support, and a through hole having the same central axis as the through hole formed in the upper plate and the lower plate is formed on one side of the support plate.

In addition, each rotating member is provided between the upper plate and the support plate, the lower plate and the support plate.

In addition, a plurality of grooves are formed at one side of the inner circumferential surface of the through hole, and a protrusion having a shape corresponding to the plurality of grooves is formed at one side of the outer circumferential surface of the support pin.

In addition, the support pin has a polygonal pillar shape having a pentagonal to octagonal cross section.

In addition, a rotation induction member is further provided between the support pin and the rotation member to induce rotation.

In addition, the rotation guide member, the rotation support plate in contact with the upper surface of the lower plate; A rotary shaft protruding to an upper portion of the rotary support plate; A second support pin insertion hole penetrating through one side of the center of the rotation shaft and having a polygonal cross section corresponding to the support pin; And a rotation guide plate protruding a plurality of plates in a plate shape along the outer circumferential surface of the rotation shaft, wherein the first support pin insertion hole has a shape corresponding to the rotation shaft and the plurality of protruding rotation guide plates.

In addition, a plurality of hollow portions parallel to the support pin insertion holes are formed at one side of the rotating member to more smoothly absorb the impact generated from the outside.

In addition, the exposure hole of the bumper cover is further provided with a cover for preventing the rotating member is directly exposed to the outside or formed integrally with the bumper cover.

According to the present invention, the bumper itself absorbs the shock primarily, and in the process of changing the impact energy into the rotational energy through the rotation of the rotating member to absorb the shock secondly to reduce the damage of the occupant and the impact object. There is. In addition, there is an effect that the rotating member to restore the direction of the vehicle while changing a portion of the impact energy to the rotational energy to prevent secondary accidents due to lane departure.

In addition, through the shock absorbing by the deformation of the rotating member through the hollow in the rotating member there is an effect that can further reduce the impact of the occupant and the impact object to further reduce the damage to the vehicle or life.

In addition, since the support pin has a polygonal cross section, and the rotation induction member to which the support pin is coupled forms a polygonal groove corresponding to the support pin, when the impact does not occur over a certain strength, the rotation member is suppressed by preventing rotation of the rotation member. There is an effect that can prevent the vehicle overturning or lane departure due to excessive rotation of the vehicle. As a result, secondary accidents caused by lane departure can be prevented in advance.

The following drawings, which are attached in this specification, illustrate preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be interpreted.
1 is an exploded perspective view of an anti-overturn and shock-absorbing bumper according to a first embodiment of the present invention;
2 is a cross-sectional view taken along line AA ″ of FIG. 1;
3 is a cross-sectional view of the anti-overturn and shock-absorbing bumper according to the second embodiment of the present invention;
4 is a perspective view of a rotating member according to a third embodiment of the present invention;
5 is a partially exploded perspective view of the anti-overturn and shock-absorbing bumper according to the fourth embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

(First embodiment)

1 is an exploded perspective view of an anti-overturn and impact-absorbing bumper according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line AA ″ of FIG. 1. The anti-overturn and impact-absorbing bumper 10 according to the present invention is As shown in FIG. 1 and FIG. 2, the body panel 100, the support 300, the support pin 450, the rotation member 400, the frame 200, the bumper beam 500, and the observer 600 are large. And a bumper cover 700.

The body panel 100 according to the first embodiment of the present invention is a device that connects the bumper 10 and the vehicle, and has a shape corresponding to the front or rear portion of the vehicle. Since the body panel 100 is configured to connect and fix the bumper 10 and the vehicle, the body panel 100 has a configuration similar to that of a body panel generally used, and thus a detailed description thereof will be omitted.

Frame 200 according to the present invention is fixed to the one side of the front portion of the body panel 100 by a bolt fastening or welding method to support the bumper beam 500 to be described later. The frame 200 has a bumper stay 210 at its end. The frame 200 is also provided in the general bumper 10, and a detailed description thereof will be omitted. At this time, the material of the frame 200 is made of a metal material resistant to impact.

The support 300 according to the present invention is provided at one side of the vehicle body panel 100, preferably at the corner of the bumper 10 to provide a place where the rotating member 400 to be described later can be seated. The support 300 has a longitudinal section of the 'c' shape, the support pin 450 may be inserted into one side of the central portion of the upper plate 310 and the lower plate 320 which is provided perpendicular to the body panel 100. Through holes 350 having the same central axis are formed, respectively. In this case, the support 300 may be coupled to the vehicle body panel 100 through a bolt fastening or welding method, or may be integrally formed with the vehicle body panel 100 in the manufacturing process of the vehicle body panel 100. The support 300 is preferably made of a metal material resistant to impact. 1 and 2 show that the support 300 is provided only at a portion corresponding to the corner portion of the bumper 10, but depending on the usage, one or a plurality of supports 300 may also be provided at the front portion of the bumper 10. It is obvious that you can install more).

Rotating member 400 according to the present invention is a device for absorbing the impact energy generated from the outside by the impact of the vehicle to convert the rotation energy. The support pin 450 penetrating through the through hole 350 formed in the upper plate 310 and the lower plate 320 of the support 300 is fixed to the support 300 with a central axis. At this time, the first support pin insertion hole 410 at a position corresponding to the central hole of the rotating member 400, preferably the through hole 350 formed in the upper plate 310 and the lower plate 320 of the support 300. Is formed. That is, the support pin 450 sequentially penetrates the through hole 350 of the upper plate 310, the first support pin insertion hole 410, and the through hole 350 of the lower plate 320 to rotate the member 400. It is seated on the support 300, the rotation member 400 is to rotate the support pin 450 around the central axis. The size of the rotating member 400 is the outer peripheral surface of the rotating member 400 is exposed to the outside of the bumper cover 700 by a predetermined interval, or has a diameter corresponding to the outer peripheral surface of the bumper cover 700, the height of the support 300 It has a size corresponding to the height between the upper plate 310 and the lower plate 320 of. In addition, the material of the rotating member 400 may be made of any material as long as the material is good in elasticity to absorb shocks prior to converting the impact of the impact into rotational energy. However, it is preferable to use a synthetic resin material such as rubber or urethane.

The bumper beam 500 according to the present invention is to widely reduce and reduce the impact of the impact portion generated due to the collision of the vehicle, a method such as bolting or welding to the bumper stay 210 provided in the frame 200 Are combined through. The bumper beam 500 is also commonly used in the art, and a detailed description thereof will be omitted. However, one side of the bumper beam 500 according to the present invention, preferably one side with the above-described support 300 and the rotating member 400 is penetrated to expose the rotating member 400 to the outside or When the rotation member 400 is provided only at the corner portion of the bumper 10, the rotation member 400 is provided only at a portion that does not catch rotation of the rotation member 400 provided at the corner portion.

The shock observer 600 according to the present invention is provided to the front portion of the bumper beam 500 to absorb the shock generated by the collision of the vehicle, and is made of a material for easily absorbing shock, such as urethane foam or foam rubber. The observer 600 is also commonly used in the art, and a detailed description thereof will be omitted. However, the observer 600 according to the present invention, like the bumping, only the portion through which the rotating member 400 is exposed to the outside of the bumper 10 or is not hindered by the rotation of the rotating member 400. It is provided.

Bumper cover 700 according to the present invention is to decorate the overall appearance of the bumper 10, such that the internal configuration of the above-described body panel 100, observer 600 and the support 300 is not exposed to the appearance. . Such a bumper cover 700 is a conventional use in the art, but a detailed description thereof will be omitted, but the bumper cover 700 according to the present invention has a rotating member 400 so that the rotating member 400 can be exposed to the outside. An exposure hole 710 corresponding to the size of the rotating member 400 is formed at a position corresponding to the provided position. In this case, in order to prevent damage to the aesthetics by exposing the rotating member 400, a cover cover 720 having the same color as the bumper cover 700 may be provided. The cover cover 720 is made of a thin plastic or glass material that can be easily broken by an external impact to expose the rotating member 400, is coupled to the bumper cover 700 by hook coupling or bolt fastening, It is molded integrally with the bumper cover 700.

(Second embodiment)

3 is a cross-sectional view of the anti-overturn and shock-absorbing bumper according to the second embodiment of the present invention. As illustrated in FIG. 3, the shock absorbing bumper 10 according to the second exemplary embodiment of the present invention has a configuration similar to that of the first exemplary embodiment. Thus, only the support 300 and the rotating member 400 will be described with respect to the first embodiment.

As shown in FIG. 3, the support 300 according to the second embodiment of the present invention includes a support plate parallel to the upper plate 310 and the lower plate 320 at the center of the upper plate 310 and the lower plate 320. 330 is further provided. The through hole 350 having the same central axis as the through hole 350 formed in the upper plate 310 and the lower plate 320 is formed in the central region of the support plate 330.

The rotating member 400 according to the second embodiment of the present invention is the upper plate 310 as the support 300 is separated into two regions by the upper plate 310, the support plate 330 and the lower plate 320. And a height corresponding to the height between the support plate 330, the support plate 330, and the lower plate 320 and the same diameter as the first embodiment, such that the top plate 310, the support plate 330, and the support plate 330 are formed. It is provided between and the lower plate 320, respectively. As described above, the two rotating members 400 provided with up and down are rotated according to the collision height, thereby making it easier to rotate the rotating member 400 so that the impact energy can be easily converted to the rotational energy. In addition, even if any one of the upper and lower rotating member 400 loses its function, the remaining rotating member 400 replaces the function.

(Third embodiment)

4 is a perspective view of a rotating member according to a third embodiment of the present invention. The anti-overturn and shock-absorbing bumper 10 according to the third embodiment of the present invention has the same configuration as the first embodiment or the second embodiment as a whole.

However, as shown in FIG. 4, the rotating member 400 according to the third embodiment of the present invention has a plurality of hollow portions 420 parallel to the first support pin insertion holes 410. As such, as a plurality of hollow portions 420 penetrating the rotating member 400 up and down are formed, the rotating member 400 is deformed by an external impact and absorbs the impact more smoothly, due to the collision of the vehicle. It will absorb more of the impact on the occupants.

(Example 4)

5 is a partially exploded perspective view of the anti-overturn and shock-absorbing bumper according to the fourth embodiment of the present invention. The anti-overturn and shock-absorbing bumper 10 according to the fourth embodiment of the present invention has a configuration similar to that of the first to third embodiments as a whole. However, the through-hole 350 and the support pin 450 of the support 300 is not controlled to the speed of the vehicle due to excessive rotation of the rotary member 400 is maintained as the first to prevent the lane departure occurs, etc. The fourth embodiment will be described based on the configuration to be discriminated by discriminating from the third to third embodiments. In addition, the shock-absorbing bumper 10 according to the fourth embodiment more easily controls the rotation of the rotating member 400 to reduce the speed of the vehicle to reduce the speed of the vehicle in collision with the central separator, guard rail or other vehicles The member 800 is further provided.

A plurality of grooves 351 are formed in the inner circumferential surfaces of the through holes 350 formed in the upper plate 310 and the lower plate 320 of the support 300 according to the fourth embodiment of the present invention. The plurality of grooves 351 are formed at equal intervals on the inner circumferential surface of the through hole 350 about the central axis of the through hole 350. The plurality of grooves 351 are formed such that the cross section has a quadrangle.

The support pin 450 according to the fourth embodiment of the present invention has a protrusion 451 such that the upper end and the lower end correspond to the plurality of grooves 351 formed in the through hole 350 of the upper plate 310 and the lower plate 320, respectively. ) Are formed in plural. As such, the protrusion 451 is coupled to each of the grooves 351 so that the support pin 450 is fastened so as not to rotate together even when the rotating member 400 rotates. And the intermediate region of the support pin 450 is made of a polygonal column shape whose cross section is pentagonal to octagonal.

The rotation induction member 800 according to the fourth embodiment of the present invention suppresses the rotation of the rotation member 400 when an impact is applied at a predetermined strength or lower, and when the impact is applied at a predetermined strength or higher, the rotation member 400. ) Is a device to rotate. The rotation guide member 800 is a rotary support plate 810 in contact with the upper surface of the lower plate 320, a column-shaped rotary shaft 820 protruded to the upper portion of the rotary support plate 810, the central one side of the rotary shaft 820 The rotating guide plate 840 penetrates and radially protrudes along the longitudinal direction of the outer circumferential surface of the second support pin insertion hole 830 and the rotating shaft 820 formed in a polygon corresponding to the outer circumferential surface of the support pin 450. Is done. In this case, the material of the rotation induction member 800 may be made of a synthetic resin or plastic material which can be plastically deformed and rotated by the second support pin insertion hole 830 by an external impact.

The rotating member 400 according to the fourth embodiment of the present invention has a configuration similar to that of the first embodiment or the third embodiment as a whole. However, the first support pin insertion hole 410 formed in the center of the rotation member 400 is formed in the same shape as the cross section of the rotation guide member 800 so that the rotation guide member can be inserted.

That is, according to the above configuration, the rotation induction member 800 is inserted into the first support pin insertion hole 410 of the rotation member 400, and the support pin 450 is formed through the second support pin insertion hole 830. It penetrates and fixes the rotating member 400 between the upper plate 310 and the lower plate 320 of the support 300.

As described above, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: bumper
100: body panel
200: frame
210: bumper stay
300: support
310: top plate
320: bottom plate
330: support plate
350: through hole
351: home
400: rotating member
410: first support pin insertion hole
420: hollow part
450: support pin
451: protrusion
500: bumper beam
600: Observer
700 bumper cover
710: exposed hole (710)
720: cover cover
800: rotation induction member
810: rotating support plate
820: axis of rotation
830: second support pin insertion hole
840: rotating guide plate

Claims

Body panels 100 installed in the front and rear of the vehicle;
A plurality of supports 300 provided on one side of the body panel 100;
A support pin 450 provided perpendicularly to the support 300;
A rotation member 400 having a first support pin insertion hole 410 formed at one side of the center thereof to be rotatable about the support pin 450;
A frame 200 provided at one side of the front portion of the body panel 100 and having a bumper stay 210 at an end portion thereof;
A bumper beam 500 supported by the frame 200;
An observer 600 provided at a front portion of the bumper beam 500 to absorb a shock; And
A bumper cover 700 provided at a front portion of the observer 600 and having an exposure hole 710 formed at a position corresponding to the rotation member 400 so that the rotation member 400 is exposed to the outside; Rollover prevention and shock absorption bumper comprising a.

The method of claim 1,
The support 300 has a cross-section having a 'C' shape, the through hole 350 having the same central axis so that the support pin 450 can be inserted into the upper plate 310 and the lower plate 320, respectively Overturning and shock-absorbing bumper, characterized in that formed.

The method of claim 2,
In the center of the upper plate 310 and the lower plate 320 of the support 300 is further provided with a support plate 330 parallel to the upper plate 310 and the lower plate 320, and on one side of the support plate 330 Roll-up prevention and shock-absorbing bumper, characterized in that the through-hole 350 having the same central axis as the through-hole 350 formed in the upper plate 310 and the lower plate 320 is formed.

The method of claim 3,
Rolling prevention and shock-absorbing bumper, characterized in that the rotating member 400 is provided between the upper plate 310 and the support plate 330, the lower plate 320 and the support plate 330.

The method of claim 2,
A plurality of grooves 351 are formed at one side of the inner circumferential surface of the through hole 350,
Overturn prevention and shock-absorbing bumper, characterized in that the protrusion 451 of the shape corresponding to the plurality of grooves 351 is formed on one side of the outer peripheral surface of the support pin (450).

6. The method of claim 5,
The support pin 450 is a roll-over prevention and shock-absorbing bumper, characterized in that the cross section is made of a polygonal column shape having a pentagonal to octagonal.

The method of claim 6,
Overturning and shock-absorbing bumper, characterized in that the rotation induction member 800 is further provided between the support pins 450 and the rotating member 400 to induce rotation.

The method of claim 7, wherein
The rotation guide member 800,
A rotary support plate 810 in contact with the upper surface of the lower plate 320;
A rotation shaft 820 protruding upward from the rotation support plate 810;
A second support pin insertion hole 830 penetrating through a central side of the rotation shaft 820 and having a cross section formed into a polygon corresponding to the support pin 450; And
Includes; the rotation guide plate 840 protrudes in a plate shape along the outer circumferential surface of the rotary shaft 820,
The first support pin insertion hole 410 has a shape corresponding to the rotary shaft 820 and the plurality of protruding rotation guide plate 840, the rollover prevention and shock absorbing bumper.

The method of claim 1,
One side of the rotating member 400, in order to more smoothly absorb the impact generated from the outside to prevent the roll over and impact, characterized in that a plurality of hollow portion 420 formed in parallel with the first support pin insertion hole 410 is formed Absorption bumpers.

The method of claim 1,
The exposure hole 710 of the bumper cover 700 is further provided with a cover cover 720 for preventing the rotating member 400 is directly exposed to the outside or formed integrally with the bumper cover 700 Anti-overturn and shock-absorbing bumper, characterized in that.