KR102009795B1 - Front bumper integrated stiffner - Google Patents

Front bumper integrated stiffner Download PDF

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Publication number
KR102009795B1
KR102009795B1 KR1020150028025A KR20150028025A KR102009795B1 KR 102009795 B1 KR102009795 B1 KR 102009795B1 KR 1020150028025 A KR1020150028025 A KR 1020150028025A KR 20150028025 A KR20150028025 A KR 20150028025A KR 102009795 B1 KR102009795 B1 KR 102009795B1
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KR
South Korea
Prior art keywords
stiffener
bumper
carrier
bumper cover
vehicle
Prior art date
Application number
KR1020150028025A
Other languages
Korean (ko)
Other versions
KR20160105593A (en
Inventor
김동원
길용길
강용한
김희준
Original Assignee
(주)엘지하우시스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to KR1020150028025A priority Critical patent/KR102009795B1/en
Publication of KR20160105593A publication Critical patent/KR20160105593A/en
Application granted granted Critical
Publication of KR102009795B1 publication Critical patent/KR102009795B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B62D25/085—Front-end modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
    • B60R2019/1833—Structural beams therefor, e.g. shock-absorbing made of plastic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002—Type of accident
    • B60R2021/0004—Frontal collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Disclosed is a stiffener integrated front bumper. The disclosed invention comprises: a bumper cover installed in front of a carrier and formed to have a length extending along a vehicle width; And a stiffener integrally formed with the bumper cover, wherein the stiffener includes a stiffener body part provided below the bumper cover and integrally formed with the bumper cover; And a carrier connection connecting the stiffener body to the carrier.

Description

Stiffener integrated front bumper {FRONT BUMPER INTEGRATED STIFFNER}

The present invention relates to a stiffener integrated front bumper, and more particularly, to a stiffener integrated front bumper which is provided at the front of a vehicle to absorb shock in a vehicle crash accident.

In general, the front end of the vehicle body is provided with a front end module (FEM) that modularizes the components constituting the front of the vehicle to significantly reduce the number of parts and assembly labor when assembling the vehicle in the vehicle assembly line.

The front end module is a modularized component of the front part of the vehicle so as to greatly reduce the number of parts and assembly labor when assembling the vehicle in the vehicle assembly line. The front end module supports the carrier, the body front body, and the body front body. It is installed on the front of the vehicle body is provided in the form of a module integrating components such as bumpers, other headlamps, electric fans, radiators, etc. to absorb shocks when a vehicle crashes.

Among these, the bumper is a shock absorber disposed at a predetermined portion of the front and rear of the vehicle so as to absorb the impact when the vehicle collides with another vehicle or the fixed body, to improve the safety of the passenger, and to minimize the deformation of the vehicle body. Unit.

The bumper includes a bumper beam disposed in the vehicle width direction from the front of the vehicle, a stay mounted on both sides of the bumper beam and coupled to the side member, and a bumper cover surrounding the bumper beam.

A stiffener is mounted below the bumper beam. The stiffener functions to evenly distribute the impact generated in front of the vehicle in front of the front end module and to protect the pedestrian by absorbing the impact energy while being deformed during collision with the pedestrian.

This stiffener is installed in the front lower portion of the vehicle in a manner that is fastened to the bumper beam using a separate steel bracket.

Background art of the present invention is disclosed in Republic of Korea Patent Publication No. 10-0681048 (February 02, 20107, the name of the invention: the front bumper structure of the vehicle).

It is an object of the present invention to provide an integrated front bumper that improves design freedom and quality while reducing weight and manufacturing cost.

A stiffener integrated front bumper according to the present invention includes: a bumper cover installed at a front of a carrier and formed to have a length extending along a vehicle width; And a stiffener integrally formed with the bumper cover, wherein the stiffener includes a stiffener body part provided below the bumper cover and integrally formed with the bumper cover; And a carrier connecting portion connecting the stiffener body to the carrier.

In addition, the stiffener main body is preferably inserted into the bumper cover.

In addition, the stiffener body portion, the stiffener shape portion forming the shape of the stiffener body portion; And a rigid reinforcing portion coupled to the stiffener-shaped portion so as to strengthen the stiffener body portion.

In addition, the stiffener-shaped portion is formed of a material having excellent moldability than the rigidity reinforcing portion; The rigid reinforcement portion is preferably formed of a material having a higher rigidity than the stiffener shape portion.

In addition, the rigid reinforcement portion is preferably inserted into the stiffener shape portion is injection molded.

In addition, the carrier connecting portion is provided at both ends of the longitudinal direction of the stiffener body portion, respectively; Each of the carrier connection portions is preferably formed to extend toward the carrier side and is directly coupled to the carrier.

In addition, the carrier connection portion is preferably formed integrally with the stiffener body portion.

According to the stiffener integrated front bumper of the present invention, the bumper cover and the stiffener are manufactured to be integrally formed, thereby improving pedestrian protection performance without changing the shape of the bumper cover, and conversely maintaining pedestrian protection performance at an equivalent level or higher. You can improve your design freedom.

In addition, the present invention improves the adhesion between the bumper cover and the stiffener, while enhancing its rigidity, it is possible to prevent bumping of the bumper, and to improve the sensitivity quality of the bumper, as well as to reduce rattle noise. have.

In addition, the present invention can be installed in the lower front of the vehicle without the heavy steel bracket, it is possible to reduce the weight of the front portion of the vehicle, as well as to reduce the difficulty of the installation work and reduce the number of work.

1 is a perspective view illustrating a stiffener integrated front bumper according to an exemplary embodiment of the present invention.
FIG. 2 is an enlarged view of a portion of the stiffener integrated front bumper shown in FIG. 1.
3 is a cross-sectional view taken along the line “AA” of FIG. 2.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a stiffener integrated front bumper according to the present invention. For convenience of description, the thicknesses of the lines and the size of the elements shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view illustrating a stiffener integrated front bumper according to an exemplary embodiment of the present invention, and FIG. 2 is an enlarged view of a portion of the stiffener integrated front bumper illustrated in FIG. 1.

1 and 2, the stiffener integrated front bumper 100 according to the exemplary embodiment of the present invention includes a bumper cover 110 and a stiffener 120.

The bumper cover 110 forms an exterior of the stiffener integrated front bumper 100 according to the present embodiment and is coupled to a bumper beam (not shown) and supported by the beamer beam. The bumper cover 110 is disposed at the front side of the bumper beam, the stiffener 120 and the carrier 10 so as to be positioned at the foremost front of the vehicle body.

The bumper cover 110 as described above is formed to have a length extending along the vehicle width, and may be manufactured by injection molding of a synthetic resin material.

The stiffener 120 is provided on the rear side of the bumper cover 110, and evenly transmits the impact generated during the front collision of the vehicle over the entire front end module, and absorbs the impact energy while being deformed during the collision with the pedestrian. To protect pedestrians. The stiffener 120 is formed integrally with the bumper cover 110 and includes a stiffener body portion 121 and a carrier connecting portion 125.

The stiffener main body 121 is provided at the lower side of the bumper cover 110 and is integrally formed with the bumper cover 110. The stiffener main body 121 may be integrally formed with the bumper cover 110 by insert injection into the bumper cover 110 during injection molding of the bumper cover 110.

In the present embodiment, the stiffener body portion 121 is illustrated as being provided in the form including the stiffener shape portion 122 and the rigid reinforcement portion 123.

The stiffener shape part 122 is a part forming the shape of the stiffener body part 121 and may be formed of a material having excellent moldability than the rigid reinforcing part 123, for example, a material such as TPO (Thermo Plastic Olefin). have.

The rigid reinforcement part 123 is coupled to the stiffener shape part 122 so that the rigidity of the stiffener main body part 121 is strengthened. The rigid reinforcement part 123 is formed of a material having a higher rigidity than that of the stiffener shape part 122, and is inserted into the stiffener shape part 122 during injection molding of the stiffener shape part 122 and the stiffener shape part 122. Can be injection molded together.

As an example, the rigid reinforcement unit 123 may be formed of a fiber reinforced composite material such as long fiber reinforced thermoplastic (LFT) material.

Long-fiber reinforced thermoplastic resin is a fine chemical material reinforced with long fiber in plastic material. It has a level of rigidity close to metal, and is cheaper and lighter than metal, and easy to injection molding. There is this.

As another example, the rigid reinforcement unit 123 may be formed of a fiber reinforced composite material such as Continuous Fiber Thermoplastics (CFT) material.

Continuous fiber thermoplastic resin is a composite material in which a reinforcing fiber such as glass island or carbon fiber is continuously embedded in a plastic material, and has excellent mechanical strength, rigidity and impact performance.

Stiffener 123 is formed of the fiber-reinforced composite material as described above, the stiffener to selectively position the stiffener body portion 121 is required to be reinforced in the process of injection molding the stiffener shape portion 122 By being inserted into the shape portion 122 and being injected together with the stiffener shape portion 122, the stiffness of the portion of the stiffener body portion 121 that requires rigidity can be effectively improved.

As described above, the stiffener main body portion 121 formed in the form of inserting the rigid reinforcement portion 123 into the stiffener shape portion 122 is not only has high rigidity at light weight, but also rigidity of a portion requiring rigidity reinforcement. It can be easily manufactured at low cost while improving effectively.

The carrier connecting portion 125 is provided to connect the stiffener main body 121 to the carrier 10, and is formed integrally with the stiffener main body 121. These carrier connecting portions 125 are provided at both ends of the longitudinal direction of the stiffener main body 121.

Each carrier connection portion 125 is formed to extend from both longitudinal ends of the stiffener body portion 121 to the carrier 10 side, that is, to the rear side of the vehicle body, and is directly coupled to the carrier 10.

That is, the stiffener 120 of the present embodiment is not installed in the front lower portion of the vehicle in a manner of being fastened to the bumper beam by using a separate steel bracket, but through a carrier connection 125 formed integrally with the stiffener 120 itself. It may be installed in the front lower portion of the vehicle in a manner directly coupled to the carrier 10.

Accordingly, since the stiffener 120 can be installed in the lower part of the front of the vehicle without having a heavy steel bracket, not only the weight of the front part of the vehicle can be reduced, but also the difficulty of the installation work can be reduced and the number of labors can be reduced. .

3 is a cross-sectional view taken along the line “A-A” of FIG. 2.

Hereinafter, a manufacturing process, an operation, and an effect of the stiffener integrated front bumper according to the present embodiment will be described with reference to FIGS. 1 to 3.

1 and 2, the stiffener integrated front bumper 100 according to the present exemplary embodiment may be manufactured by injection molding the bumper cover 110 to insert the stiffener 120. In this case, the stiffener 120 is formed to extend from the stiffener main body 121 and the stiffener main body 121 toward the rear side of the vehicle body to be coupled to the bumper cover 110, that is, the part inserted into the bumper cover 110. And a carrier connecting portion 125 which is a portion connecting the stiffener main body 121 to the carrier 10.

Among these, the stiffener main body 121 is a rigid reinforcement coupled to the stiffener-shaped portion 122 forming the shape of the stiffener main body 121 and the stiffener-shaped portion 122 so as to enhance the rigidity of the stiffener main body 121. It may be divided into a part 123.

In this case, the stiffener shape portion 122 is formed of a material that is relatively high in strength compared to the rigidity reinforcement part 123 but is light and easy to injection molding, that is, a formability material, and the rigidity reinforcement part 123 is long fiber reinforced. It is formed of a fiber-reinforced composite material of high rigidity such as thermoplastic resin or continuous fiber thermoplastic resin.

In addition, the rigid reinforcement part 123 formed as described above may be formed on the stiffener shape part 122 such that the rigidity reinforcement part 123 may be selectively positioned at a portion requiring rigidity of the stiffener body part 121 in the process of injection molding the stiffener shape part 122. It is inserted and ejected together with the stiffener features 122.

The stiffener main body 121 formed as described above is manufactured by adjusting the formation position of the rigid reinforcement part 123 such that the rigid reinforcement part 123 is selectively positioned at a portion requiring rigidity reinforcement in the insert injection process. It can be made to have good appearance quality and strength while suppressing the increase in weight.

In the injection process for molding the stiffener main body 121 made as described above, the molding of the carrier connection part 125 is also made to be integrated with the stiffener main body 121, thereby completing the molding of the stiffener 120.

The stiffener 120 formed as described above is inserted into the bumper cover 110 so as to be positioned at the position where the stiffener 120 is to be coupled on the bumper cover 110 in the process of injecting the bumper cover 110. By being injected together with 110, it is molded integrally with the bumper cover 110.

As such, when the bumper cover 110 and the stiffener 120 are integrally formed, as illustrated in FIG. 3, the stiffener 120 may be coupled to the bumper cover 110 in a completely intimate state.

That is, since the bumper cover 110 and the stiffener 120 are integrally formed, the stiffener 120 is coupled to the bumper cover 110 in close contact with the bumper cover 110, so that the bumper cover 110 may be determined when determining the appearance of the bumper cover 110. And there is no need to provide an assembly tolerance between the stiffeners 120.

Accordingly, while maintaining the shape of the bumper cover 110 as before, the position of the stiffener 120 can be further protruded toward the front side of the vehicle by the assembly tolerance that has been provided in the past, thereby improving the shape of the bumper cover 110. It is possible to improve pedestrian protection without changing it, and conversely, design freedom can be improved while maintaining pedestrian protection performance at an equal level or higher.

In addition, the stiffener integrated front bumper 100 manufactured as described above does not have an assembly tolerance, thereby improving adhesion between the bumper cover 110 and the stiffener 120, and the rigidity of the stiffener 120 through the rigid reinforcing portion 123. This reinforcement improves the strength of the bumper, thereby preventing bumping of the bumper, improving the quality of the bumper's sensitivity, and reducing rattle noise.

Meanwhile, as illustrated in FIGS. 1 and 2, the stiffener integrated front bumper 100 manufactured as described above may be connected to the vehicle body by being coupled to the carrier 10 through the carrier connection part 125.

The coupling between the carrier connecting portion 125 and the carrier 10 may be achieved by fastening the carrier connecting portion 125 and the carrier 10 overlapping in the vertical direction in the vertical direction by using a bolt or a retainer.

That is, the stiffener 120 of the present embodiment is not installed in the front lower portion of the vehicle in a manner of being fastened to the bumper beam by using a separate steel bracket, but through a carrier connection 125 formed integrally with the stiffener 120 itself. It may be installed in the front lower portion of the vehicle in a manner directly coupled to the carrier 10.

Accordingly, since the stiffener 120 can be installed in the lower part of the front of the vehicle without having a heavy steel bracket, not only the weight of the front part of the vehicle can be reduced, but also the difficulty of the installation work can be reduced and the number of labors can be reduced. .

As described above, the stiffener integrated front bumper 100 of the present embodiment is manufactured so that the bumper cover 110 and the stiffener 120 are integrally formed, thereby improving the pedestrian protection performance without changing the shape of the bumper cover 110. On the contrary, design freedom can be improved while maintaining pedestrian protection at an equivalent level or higher.

In addition, the stiffener-integrated front bumper 100 of the present embodiment has improved adhesion between the bumper cover 110 and the stiffener 120, while its rigidity is enhanced to prevent bumping of the bumper, and thus the sensitivity of the bumper. Not only can it improve quality, it can also reduce rattle noise.

In addition, the stiffener integrated front bumper 100 of the present embodiment, since the stiffener 120 can be installed in the front lower portion of the vehicle without a heavy steel bracket, it is possible to reduce the weight of the front portion of the vehicle, It can lower the difficulty and reduce the labor.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, it is merely exemplary, and various modifications and equivalent other embodiments may be made by those skilled in the art. Will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

100: stiffener integrated front bumper 110: bumper cover
120: stiffener 121: stiffener body
122: stiffener shape portion 123: rigid reinforced portion
125: carrier connection

Claims (7)

A bumper cover installed at the front of the carrier and formed to have a length extending along the vehicle width; And
A stiffener is formed integrally with the bumper cover, The stiffener is,
A stiffener body part provided below the bumper cover and integrally formed with the bumper cover; And
A carrier connecting portion connecting the stiffener body to the carrier,
The stiffener body portion,
A stiffener-shaped portion forming the shape of the stiffener main body; And
A stiffener integrated front bumper, comprising: a rigid reinforcing portion coupled to the stiffener-shaped portion so as to strengthen the stiffener body portion.
The method of claim 1,
The stiffener main body part is the front bumper integrated stiffener, characterized in that the insert is injected into the bumper cover.
The method of claim 1,
The stiffener-shaped portion is formed of a material having excellent moldability than the rigidity reinforcing portion;
The stiffener reinforcement unit, the stiffener integrated front bumper, characterized in that formed of a material having a higher rigidity than the stiffener-shaped portion.
The method according to claim 1 or 3,
The stiffener reinforcement portion, the stiffener integrated front bumper, characterized in that the injection molded in the stiffener shape.
The method of claim 1,
The carrier connection parts are provided at both ends of the longitudinal direction of the stiffener body part;
Stiffener integrated front bumper, characterized in that each of the carrier connection portion is formed to extend to the carrier side directly coupled to the carrier.
The method of claim 5,
The carrier connection part, the stiffener integrated front bumper, characterized in that formed integrally with the stiffener body. delete
KR1020150028025A 2015-02-27 2015-02-27 Front bumper integrated stiffner KR102009795B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150028025A KR102009795B1 (en) 2015-02-27 2015-02-27 Front bumper integrated stiffner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150028025A KR102009795B1 (en) 2015-02-27 2015-02-27 Front bumper integrated stiffner

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KR102009795B1 true KR102009795B1 (en) 2019-08-13

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102462108B1 (en) * 2017-12-28 2022-11-01 한화글로벌에셋 주식회사 Injection molded stiffener with rod type cfrtpc material
KR102415511B1 (en) * 2018-10-22 2022-06-30 (주)엘엑스하우시스 Lower stiffener of vehicle and manufacturing method of the same
KR102320695B1 (en) * 2018-10-30 2021-11-01 (주)엘엑스하우시스 Lower stiffener of vehicle and manufacturing method of the same using in-monding forming process
KR102655444B1 (en) * 2020-09-28 2024-04-05 롯데케미칼 주식회사 Lower stiffener for vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100681048B1 (en) * 2005-11-17 2007-02-08 현대자동차주식회사 A front bumper structure in vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100681048B1 (en) * 2005-11-17 2007-02-08 현대자동차주식회사 A front bumper structure in vehicle

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