CN106536288A - Lower bumper stiffener and automotive vehicle thereof - Google Patents
Lower bumper stiffener and automotive vehicle thereof Download PDFInfo
- Publication number
- CN106536288A CN106536288A CN201480078399.3A CN201480078399A CN106536288A CN 106536288 A CN106536288 A CN 106536288A CN 201480078399 A CN201480078399 A CN 201480078399A CN 106536288 A CN106536288 A CN 106536288A
- Authority
- CN
- China
- Prior art keywords
- low
- substrate
- bumper guard
- longitudinal rib
- position bumper
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- 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
- 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
- B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
- B60R19/12—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement vertically spaced
-
- 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
- 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
- B60R2019/1846—Structural beams therefor, e.g. shock-absorbing made of plastic material comprising a cellular structure
-
- 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
- B60R2019/1853—Structural beams therefor, e.g. shock-absorbing made of plastic material of reinforced plastic material
Abstract
A lower bumper stiffener (1) and an automobile vehicle thereof are provided. The lower bumper stiffener (1) which comprises a front section (2), a base plate (6) and longitudinal ribs (8) has sufficient stiffness, meanwhile the lower bumper stiffener (1) is cost-efficient and reduced in weight.
Description
Technical field
The present invention relates to a kind of new low-position bumper guard reinforcement, and including the motor-driven of the low-position bumper guard reinforcement
Car, the low-position bumper guard reinforcement include front portion, substrate and longitudinal rib.
Background technology
Typical bumper assembly for motor vehicles runs through the front-end and back-end of vehicle, and which is primarily designed work for a long time
It is the absorbent of the impulsive force produced during with the collision of other motor vehicles and/or fixed object.However, car under steam
In many shocks and pedestrian between, bumper assembly can typically encounter the shank of pedestrian, and at the same time the foot of pedestrian is still stood
Stand on the ground.If motor vehicles are further moved, bumper can typically press through the shank of pedestrian, and this may cause potential tight
Weight knee injuries.Therefore, the damage risk during reducing motor vehicles and pedestrian impact becomes more and more important.Pin is in this regard,
Have developed low-position bumper guard reinforcement（Lower Bumber Stiffer are referred to as LBS）, when the vehicle and pedestrian impact of traveling
When can provide protection for pedestrian shank, therefore the shank of pedestrian will not be bent below vehicle.This low-position bumper guard is strengthened
Part is normally at front bumper panel（front bumper fascia）Afterwards and it is close to the position of front bumper panel bottom,
Its full width generally across bumper fascia, but there is a small-gap suture with bumper fascia.It can be at one or many
Bumper fascia is connected to by bolt or plug at individual point.
Currently, prepared by the polyamide or metal that low-position bumper guard reinforcement is typically strengthened by the glass fibre of beam shape.
Although however, by metal prepare low-position bumper guard reinforcement with stronger rigidity, may be very heavy, from rather than vapour
Car manufacturer it is preferred.And, these low-position bumper guard reinforcements are restricted in geometry and vpg connection.By contrast,
Due to humidity caused by its dependence water absorption character of environmental condition for example because of polyamide, therefore by the polyamide system of glass fibre reinforcement
The rigidity that standby low-position bumper guard reinforcement is provided is unstable.And, relative to polypropylene, the polyamide strengthened by glass fibre
The low-position bumper guard reinforcement of preparation is not a kind of cost-effective solution for protecting shank.
Therefore, there is still a need for a kind of subtract with enough rigid, good pedestrian lower leg protections, cost-effective and weight
Light low-position bumper guard reinforcement.
The content of the invention
Therefore, it is an object of the invention to provide a kind of low-position bumper guard reinforcement, which has enough rigidity and pedestrian
Leg protection and be weight saving.And, it should also cost-effective low-position bumper guard reinforcement is provided.
The present invention's is the discovery that a kind of low-position bumper guard reinforcement（1）, which includes front portion（2）, substrate（6）And longitudinal rib
（8）.
Correspondingly, the present invention relates to a kind of low-position bumper guard reinforcement（1）, including
a）It is anterior（2）, which includes header board（3）, back plate（4）And V-groove（5）, the V-groove（5）In header board（3）And back plate
（4）Between extend, wherein the back plate（4）With header board（3）It is arranged in parallel,
b）Substrate（6）, which is connected to front portion（2）Bottom on cause substrate（6）Leading edge（7）Before the basic connection with right angle
Portion's back plate（4）Bottom, and
c）Longitudinal rib（8）, which extends and connected to substrate along impact direction（6）Upper surface.
Unexpectedly, it has been found that this low-position bumper guard reinforcement have it is enough and stable rigid and excellent
Pedestrian lower leg protection, and weight saving.And, the low-position bumper guard reinforcement can be than the polyamides strengthened by glass fibre
Low-position bumper guard reinforcement lower cost production prepared by amine.
Another aspect of the present invention is related to a kind of motor vehicles, and which includes low-position bumper guard reinforcement（1）.
An embodiment of the invention, header board（3）And back plate（4）It is arc.The arc corresponds to front insurance
The arc of thick stick panel, the low-position bumper guard reinforcement are arranged on behind front bumper panel.
According to another implementation of the invention, the V-groove（5）By multiple V-type units（5a）Constitute, it is preferable that
Each V-type unit（5a）Drift angle " α " be 20 ° to 120 °, preferably 45 ° to 90 °, and most preferably 60 ° to 90 °.
According to another implementation of the invention, header board（3）And back plate（4）Height " h " substantially and V-groove（5）'s
Highly " h " is equal.
An embodiment of the invention, substrate（6）Substantially smooth.
According to another implementation of the invention, substrate（6）Leading edge（7）It is arc, preferably with front portion（2）After
Plate（4）Arc it is identical.
According to another implementation of the invention, substrate（6）Including rear flange（9）, the rear flange（9）With substrate
（6）Upper surface it is vertical.
An embodiment of the invention, rear flange（9）Thickness and substrate（6）Thickness " t1 " it is equal.
According to another implementation of the invention, longitudinal rib（8）With substrate（6）Substantially at right angles, it is and described vertical
To rib（8）With identical material in substrate（6）It is upper Unitarily molded.
According to another implementation of the invention,
a）Longitudinal rib（8）Height " h " substantially and V-groove（5）Height " h " it is equal；And/or
b）Longitudinal rib（8）Height " h " and substrate（6）Thickness " t1 " ratio（h/t1）It is in the range of 2 to 5, excellent
Select 3 to 5, and most preferably 4 to 5；And/or
c）Longitudinal rib（8）The distance between " d " it is of substantially equal, preferably two adjacent longitudinal ribs bars（8）The distance between
" d " is 10 to 60mm, preferably 20 to 50mm, and most preferably 20 to 30mm.
An embodiment of the invention, longitudinal rib（8）One end be vertically connected to front portion（2）Back plate
（4）, and the longitudinal rib（8）The other end be vertically connected to substrate（6）Rear flange（9）.
According to another implementation of the invention, longitudinal rib（8）Length according to which in substrate（6）On position and
Change, it is preferable that positioned at the substrate（6）Central shaft longitudinal rib（8）With greatest length, positioned at the substrate（6）
Side longitudinal rib（8）With minimum length.
According to another implementation of the invention, longitudinal rib（8）Thickness " t2 " and substrate（2）Thickness " t1 "
Than（t2/t1）For 0.4 to 1.0, preferably 0.5 to 0.8, and most preferably 0.5 to 0.75.
An embodiment of the invention, low-position bumper guard reinforcement（1）It is the polypropylene strengthened by glass fibre
Prepare.
Hereinafter, other details of the present invention, particularly low-position bumper guard reinforcement will be further described（1）It is single
Part.
Description of the drawings
The brief description of accompanying drawing is the following is, wherein identical part is marked by and is identically numbered, and the accompanying drawing is presented
Brief description is, for illustrating representative embodiments disclosed herein, rather than any restriction to be made to which.
Fig. 1 is low-position bumper guard reinforcement（1）An embodiment three dimensional top schematic diagram.
Fig. 2 is low-position bumper guard reinforcement（1）Front portion（2）An embodiment schematic top plan view.
Fig. 2 a are the low-position bumper guard reinforcements obtained along the line D-D shown in Fig. 2 b（1）Front portion（2）" C " part
The cross-sectional view of the amplification of one embodiment.
Fig. 2 b are low-position bumper guard reinforcements（1）Front portion（2）" C " part an embodiment amplification vertical view
Schematic diagram.
Fig. 3 is low-position bumper guard reinforcement（1）Substrate（6）An embodiment schematic top plan view.
Fig. 3 a are the low-position bumper guard reinforcements obtained along the line A-A shown in Fig. 3（1）Substrate（6）An embodiment party
The cross-sectional view of formula.
Fig. 4 is low-position bumper guard reinforcement（1）Longitudinal rib（8）An embodiment schematic top plan view.
Fig. 4 a are low-position bumper guard reinforcements（1）Single longitudinal rib（8）An embodiment schematic top plan view.
| Part | Reference numerals list |
| Low-position bumper guard reinforcement | 1 |
| It is anterior | 2 |
| Header board | 3 |
| Back plate | 4 |
| V-groove | 5 |
| V-type unit | 5a |
| Substrate | 6 |
| Leading edge | 7 |
| Longitudinal rib | 8 |
| Rear flange | 9 |
| Trailing edge | 10 |
Specific embodiment
The low-position bumper guard reinforcement for motor vehicles of the present invention（1）It is lightweight and cost-effective for vehicle
Shank protector（Fig. 1）.And, the low-position bumper guard reinforcement for motor vehicles of the present invention（1）With enough rigidity and
Outstanding pedestrian lower leg protection, it is preferable that the rigidity is stable under the humidity that the environmental condition for changing for example changes.
What leg injury was mainly caused by the lower limb of pedestrian and the shock of the reinforcement part of vehicle bumper system.This
Bright low-position bumper guard reinforcement（1）There is provided a kind of scheme for solving following problems：That is the knee of pedestrian undergoes high impact forces
And undergo height bending between the top and the bottom of lower limb.During lower limb collision of the vehicle with pedestrian, the low-position bumper guard of the present invention
Reinforcement（1）By by the bottom of lower limb to pusher such that it is able to significantly decreasing knee bends.
The low-position bumper guard reinforcement of the present invention（1）Disclosure satisfy that existing pedestrian impact regulation.For example, the present invention's is low
Position bumper reinforcement meets flexible pedestrian's lower limb formula impacter（Flex-PLI）Requirement.Flex PLI（Flexible pedestrian's lower limb
Formula impacter）Simulate the flexible nature of human bones.In order to assess pedestrian shank and knee injuries, will be Flex PLI public with 40
In per hour（Km/hr or kmph）Speed launch from linear guides to the bumper of stationary vehicle.
The low-position bumper guard reinforcement of the present invention（1）Can be by any thermoplastic or thermoplastic and other materials
（Such as elastomeric material and/or thermosets）, for example, fill（filled）TPO（TPO）Combination and make
It is standby.Appropriate thermoplastic is preferably chosen from group constituted by the following substances：Acrylicstyrene-acrylonitrile（ASA）, third
Alkene nitrile-butadiene-styrene（ABS）, acrylonitrile-（What ethylene-polypropylene diamidogen was modified）- styrene（AES）, polybutene is to benzene
Two acid esters（PBT）, Merlon, poly (phenylene ether) resin, the mixture of polyphenylene ether/polyamide, polyamide, polrvinyl chloride
PVC, high impact polystyrene（HIPS）, polypropylene（PP）, thermoplastic olefin（TPO）, and the reinforcement of above-mentioned resin（For example
What glass fibre was strengthened）Material.
For example, low-position bumper guard reinforcement（1）It is the polypropylene production strengthened by glass fibre.
The low-position bumper guard reinforcement of the present invention（1）The low-position bumper guard reinforcement for preferably moulding（1）, more preferably spray
Penetrate the low-position bumper guard reinforcement of molding（1）.In an embodiment of the invention, low-position bumper guard reinforcement（1）It is spray
Penetrate the low-position bumper guard reinforcement of molding（1）, the low-position bumper guard reinforcement（1）Comprising at least 60.0 weight %, preferably at least
80.0 weight %, such as 80.0 to 100.0 weight %, more preferably at least 95.0 weight %, for example 95.0 weight % are to 100.0 weight %
Glass fibre strengthen polypropylene and most preferably by glass fibre strengthen polypropylene constitute.
Preferably, low-position bumper guard reinforcement（1）Single part, such as it is anterior（2）, substrate（6）And longitudinal rib（8）
Be by the molded operation of identical material, preferred Jing injection-molded operation and prepare.
In order to obtain low-position bumper guard reinforcement（1）, it is anterior（2）And longitudinal rib（8）It is preferred that strengthening in low-position bumper guard
Part（1）Substrate（6）It is upper Unitarily molded.For example, it is anterior（2）By front portion（2）Back plate（4）Base is integrally molded on right angle
Plate（6）On, the front portion（2）Back plate（4）With reference to substrate（6）Leading edge（7）.Meanwhile, longitudinal rib（8）With right angle by entirety
It is molded in substrate（6）On.
Molding or injection-molded operation and Unitarily molded operation belong to state of the art.
By reference to accompanying drawing, can obtain with regard to low-position bumper guard reinforcement（1）With the more complete understanding of its single part.
These accompanying drawings（" figure " is also referred to as herein）It is only based on the schematic generation of the easness of convenience and the description present invention
Table, thus its purpose be not be to show low-position bumper guard reinforcement（1）And the relative size and dimension of its single part
And/or the scope of definition or restriction representative embodiments.Although in order to ensure clear art specific used in following description
Language, but be used to illustrate the ad hoc structure of selected embodiment during these terms are intended merely to quote from accompanying drawing, rather than define
Or limit the scope of the present invention.In accompanying drawing and following description, it should be appreciated that same numbers symbol is referred to identical work(
The part of energy.
Fig. 1 shows this low-position bumper guard reinforcement（1）An embodiment three dimensional top schematic diagram.The present invention
A requirement be low-position bumper guard reinforcement（1）Including front portion（2）, the front portion（2）Including header board（3）, back plate（4）And V
Type groove（5）, the V-groove（5）In header board（3）And back plate（4）Between extend.And, it is anterior（2）Back plate（4）Parallel to front
Portion（2）Header board（3）Arrange.Further require, low-position bumper guard reinforcement（1）Including being connected to front portion（2）Bottom
Substrate（6）, the connection is so that substrate（6）Leading edge（7）It is basic that anterior back plate is connected with right angle（4）Bottom.In addition,
Low-position bumper guard reinforcement（1）Including the longitudinal rib extended along impact direction（8）, which is connected to substrate（6）Upper surface.
Including header board（3）, back plate（4）And V-groove（5）Front portion（2）As shown in Fig. 2 is with schematic top plan view.
Front portion in embodiment illustrated herein（2）Show back plate（4）Position and header board（3）It is parallel.And, V-groove
（5）It is constructed such that they can connect front portion（2）Header board（3）And back plate（4）.Correspondingly, V-groove（5）Position make
Obtaining them can be in front portion（2）Header board（3）And back plate（4）Between extend.
In an embodiment of the invention, header board（3）And back plate（4）Be arc, preferably along with impact side
It is curved to vertical direction.
And, it is anterior（2）Header board（3）And back plate（4）Substantially there is identical thickness " t1 ".Additionally or alternatively,
It is anterior（2）Header board（3）And back plate（4）With identical height " h "（For example, as shown in Figure 2 a）.
Back plate（4）With header board（3）Parallel is preferred.Therefore, back plate（4）With header board（3）Between space " 1 " in Fig. 2 b
Shown front portion（2）Whole width and height on it is of substantially equal.Preferably, back plate（4）And header board（3）Between space " 1 "
For 5 to 50mm, most preferably more preferably 5 to 30mm, 10 to 20mm.
Low-position bumper guard reinforcement（1）Front portion（2）Further include V-groove（5）, the V-groove（5）In header board（3）
And back plate（4）Between extend.For example, low-position bumper guard reinforcement（1）Front portion（2）Can be comprising the side vertical with impact direction
To V-groove（5）（Such as Fig. 1 and Fig. 2）.Preferably, V-groove（5）It is configured in header board（3）And back plate（4）Between so that
V-groove（5）Side be connected to header board（3）, and V-groove（5）Side be connected to front portion（2）Back plate（4）.
In an embodiment of the invention, it is anterior（2）V-groove（5）By multiple V-type units（5a）Constitute（For example
Fig. 2 a）.
Preferably, it is anterior（2）V-groove（5）By multiple continuous V-type units（5a）Constitute（Such as Fig. 2 a）.
Preferably, each V-type unit（5a）Drift angle " α " preferably substantially with it is identical shown in Fig. 2 a.For example, each V-type
Unit（5a）Drift angle " α " more than 0 and be less than 120 °.In an embodiment of the invention, each V-type unit（5a）Top
Angle " α " is 20 ° to 120 °, preferably 45 ° to 90 °, and most preferably 60 ° to 90 °.
With above-mentioned with regard to front portion（2）Header board（3）And back plate（4）Height " h " explanation similarly, header board（3）With it is rear
Plate（4）Height " h " substantially and V-groove（5）Height " h " it is equal（As shown in Figure 2 a）.Additionally or alternatively, V-groove（5）
Thickness " t1 " with it is anterior（2）Header board（3）And back plate（4）It is essentially identical.
In an embodiment of the invention, it is connected to front portion（2）Bottom substrate（6）Thickness " t1 " and V-type
Groove（5）And/or it is anterior（2）Header board（3）And back plate（4）It is essentially identical.
Fig. 1 shows substrate（6）It is connected to front portion（2）Bottom.Preferably, substrate（6）It is connected to front portion（2）Bottom
Portion so that substrate（6）Leading edge（7）It is basic that anterior back plate is connected with right angle（4）Bottom.
It is therefore preferable that the substrate in embodiments described herein（6）Including such as Fig. 3 with schematic top plan view shown in arc
The leading edge of shape（7）.In order to ensure enough rigidity, it is preferable that substrate（6）Leading edge（7）Arc with it is anterior（2）Back plate
（4）Arc it is essentially identical.
Therefore, low-position bumper guard reinforcement（1）Front portion（2）By its back plate（4）It is integrated into substrate（6）On.Before
The back plate in portion（4）Bottom can it is any be suitable to connect them with right angle by way of be connected to substrate（6）On.Therefore, it is front
The back plate in portion（4）Substrate can be connected to by attachment means（6）On, such that it is able in back plate（4）And substrate（6）Between produce
Solid connection, the attachment means are, for example, screw, bolt, rivet, plug-in type nail or its analog.Preferably, it is anterior
Back plate（4）In low-position bumper guard reinforcement（1）Substrate（6）It is upper Unitarily molded.
Substrate（6）Trailing edge（10）Can be straight or curved.As shown in the schematic top plan view of Fig. 3, substrate（6）After
Edge（10）It is preferably straight, it is more preferably vertical with impact direction.
In order to ensure enough rigidity, preferred low-position bumper guard reinforcement（1）Front portion（2）And longitudinal rib（8）Should
This is connected on substantially smooth surface.It is therefore preferred that substrate（6）It is substantially smooth（As shown in Figure 3 a）.
Fig. 3 a are shown including rear flange（9）Substrate（6）An embodiment.Preferably, rear flange（9）Thickness
" t1 " is substantially equal to substrate（6）Thickness " t1 ".
For example, the thickness " t1 " be in the range of 1 to 10mm, preferably 1 to 6mm, more preferably 2 to 5mm, and most preferably 3
To 4mm.
The low-position bumper guard reinforcement of the present invention（1）Another requirement be：Longitudinal rib（8）It is connected to substrate（6）
Upper surface.Longitudinal rib（8）Can it is any be suitable to bond them together by way of and be connected to substrate（6）
On.Therefore, longitudinal rib（8）Substrate can be connected to by attachment means（6）, such that it is able in longitudinal rib（8）And base
Plate（6）Between produce solid connection, the attachment means are, for example, screw, bolt, rivet, plug-in type nail or which is similar
Thing.Preferably, longitudinal rib（8）In low-position bumper guard reinforcement（1）Substrate（6）It is upper Unitarily molded.
In an embodiment of the invention, longitudinal rib（8）Substantially and substrate（6）At right angles, and in substrate（6）On
It is Unitarily molded.Preferably, longitudinal rib（8）With substrate（6）Prepared by identical material.
Longitudinal rib in embodiment illustrated herein（8）It is preferred that being connected solely to substrate（6）Side on.More preferably
Ground, longitudinal rib（8）It is connected to and low-position bumper guard reinforcement（1）Front portion（2）Identical substrate（6）Side on（See
Fig. 1）.That is, longitudinal rib（8）It is preferably connected to substrate（6）Upper surface.Correspondingly, preferred low-position bumper guard adds
Strong part（1）Longitudinal rib（8）And front portion（2）It is each coupled to substrate（6）Upper surface.
Longitudinal rib（8）The basic impact direction along motor vehicles extends.Preferably, longitudinal rib（8）It is arranged to each other
Between be parallel to each other（See Fig. 1 and Fig. 4）.Longitudinal rib（8）Substantially extend horizontally and to be similar to substrate（6）Whole length
And/or width, preferable substrate（6）Length and width.
For example, longitudinal rib（8）From front portion（2）Back plate（4）Extend to substrate（6）Trailing edge（10）（See Fig. 1）.If
Substrate includes rear flange（9）, then longitudinal rib（8）It is anterior（2）Back plate（4）And substrate（6）Rear flange（9）Sealed
Firmly, as a shell.
In an embodiment of the invention, longitudinal rib（8）One end be vertically connected to front portion（2）Back plate
（4）, longitudinal rib（8）The other end be vertically connected to substrate（6）Rear flange（9）（See Fig. 1）.
Longitudinal rib（8）Can it is any be suitable to they link together by way of and be vertically connected to front portion
（2）Back plate（4）And substrate（6）Rear flange（9）.Therefore, longitudinal rib（8）Can vertically be connected by attachment means
It is connected to front portion（2）Back plate（4）And substrate（6）Rear flange（9）, the attachment means are, for example, screw, bolt, riveting
Nail, plug-in type nail or its analog.Preferably, longitudinal rib（8）It is integrally molded to front portion（2）Back plate（4）And base
Plate（6）Rear flange（9）On.
Due to anterior back plate（4）Arc, longitudinal rib（8）Length preferably with which in substrate（6）On position and
Change（See Fig. 1 and Fig. 4）.It is therefore preferred that being located at the substrate（6）Central axis longitudinal rib（8）With most greatly enhancing
Degree " L1 ", positioned at the substrate（6）Lateral surface be right lateral surface and the longitudinal rib at left outside side（8）With minimum length
“L3”.Correspondingly, positioned at substrate（6）Leading edge（7）Curvature flex point at longitudinal rib（8）With length " L2 ".Preferably,
Length " L2 " is between length " L1 " and " L3 ".
Preferably, if longitudinal rib（8）With relative to front portion（2）Back plate（4）And header board（3）Between space
The length-specific of " 1 ", then low-position bumper guard reinforcement of the invention（1）Rigidity can be improved.
For example, length " L1 "（Substrate is located at（6）Central axis longitudinal rib（8）Length）With space " 1 "（I.e.
It is anterior（2）Back plate（4）With header board（3）Between space）Ratio（L1/1）For 8 to 12, preferably 8 to 11, and most preferably 9 to
10。
Additionally or alternatively, length " L3 "（Substrate is located at（6）Lateral surface at longitudinal rib（8）Length）With
Space " 1 "（It is i.e. anterior（2）Back plate（4）With header board（3）Between space）Ratio（L3/1）For 1 to 3.5, preferably 1.5 to
3.5, and most preferably 2 to 3.5.
Additionally or alternatively, length " L2 "（I.e. in substrate（6）Central axis longitudinal rib（8）With in substrate（6）
Lateral surface at longitudinal rib（8）Between longitudinal rib（8）Length, and be located at substrate（6）Leading edge（7）Curvature
Longitudinal rib at flex point（8）Length）With space " 1 "（It is i.e. anterior（2）Back plate（4）With header board（3）Between space）'s
Than（L2/1）For 4 to 7.5, preferably 5 to 7.5, and most preferably 6 to 7.5.
In an embodiment of the invention, length " L1 "（Substrate is located at（6）Central axis longitudinal rib
（8）Length）With space " 1 "（It is i.e. anterior（2）Back plate（4）With header board（3）Between space）Ratio（L1/1）For 8 to 12,
It is preferred that 8 to 11, and most preferably 9 to 10；And length " L3 "（Substrate is located at（6）Lateral surface at longitudinal rib（8）'s
Length）With space " 1 "（It is i.e. anterior（2）Back plate（4）With header board（3）Between space）Ratio（L3/l）For 1 to 3.5, preferably
1.5 to 3.5, and most preferably 2 to 3.5；And length " L2 "（I.e. positioned at substrate（6）Central axis longitudinal rib（8）
With in substrate（6）Lateral surface at longitudinal rib（8）Between longitudinal rib（8）Length）With space " 1 "（It is i.e. anterior（2）
Back plate（4）With header board（3）Between space）Ratio（L2/1）For 4 to 7.5, preferably 5 to 7.5, and most preferably 6 to 7.5.
As shown in Figure 1 and Figure 4, longitudinal rib（8）It is preferably arranged to be parallel to each other to each other.Longitudinal rib（8）It is preferred that by
Substrate is connected to substantially homogeneously（6）Upper surface.It is therefore preferred that.Longitudinal rib（8）The distance between " d " substantially
Equal.For example, two adjacent longitudinal ribs bars（8）The distance between " d " be 10 to 60mm, preferably 20 to 50mm, and most
It is preferred that 20 to 30mm.
Additionally or alternatively, longitudinal rib（8）Height " h " be substantially equal to V-groove（5）Height " h " and/or front portion
（2）Header board（3）Height and back plate（4）Height " h ".Preferably, longitudinal rib（8）Height " h " be substantially equal to V-groove
（5）Height " h " and front portion（2）Header board（3）Height and back plate（4）Height " h ".
Preferably, all longitudinal ribs（8）It is respectively provided with essentially identical thickness " t2 ".For example, the scope of thickness " t2 " is
0.5 to 10mm, preferably 1 to 6mm, more preferably 2 to 5mm, and most preferably 3 to 4mm.
In order to provide low-position bumper guard reinforcement（1）Enough rigidity, longitudinal rib should be met（8）Height " h "
With substrate（6）Thickness " t1 " specific ratio.It is therefore preferable that the ratio of height " h " and thickness " t1 "（h/t1）Scope be 2 to 5,
Preferably 3 to 5, and most preferably 4 to 5.
Preferably, longitudinal rib（8）Thickness " t2 " be equal to or less than substrate（6）Thickness " t1 ".For example, longitudinal rib
（8）Thickness " t2 " and substrate（6）Thickness " t1 " ratio（t2/t1）Preferably 0.4 to 1.0, preferably 0.5 to 0.8, and most
It is preferred that 0.5 to 0.75.
The invention described above provides a kind of low-position bumper guard reinforcement for motor vehicles（1）, for the shank in pedestrian
Pedestrian is protected during colliding with the lower area of front bumper.The low-position bumper guard reinforcement of the present invention（1）Before being preferably provided at
After bumper fascia and the bottom of front bumper panel is close to, and there is little space with front bumper panel, the low level is protected
Full width of the dangerous thick stick reinforcement through bumper fascia.Low-position bumper guard reinforcement（1）Engine room or cold can be connected to
But the holder of component.Preferably, low-position bumper guard reinforcement（1）By a connection for example by bolt or buckle while connecting
It is connected to front bumper panel.
In view of low-position bumper guard reinforcement of the present invention（1）The excellent results for obtaining, the invention further relates to one kind includes
Low-position bumper guard reinforcement（1）Motor vehicles.
Although at least one representative embodiments are had been described with above description of the invention book, should realize
To there is substantial amounts of modification.It should also be noted that representative embodiments are only example, which is not to be by any way
Restriction the scope of the present invention, application or setting.On the contrary, description above can be directed to for those skilled in the art implementing
The concept of the representative embodiments provides convenient of the present invention.It should be appreciated that without departing from the present invention by claims
And in the case of the scope shown in their legal equivalents, the function of the part that can be directed to described in representative embodiments
Or setting carries out various changes.
Following embodiments and test will the explanation present invention, but do not mean that and limit the invention to representative embodiments.
Following embodiments show the representative low-position bumper guard reinforcement of the present invention（1）Dimension and its values of stiffness.
Embodiment
Embodiment 1
Test 1
Table 1 lists low-position bumper guard reinforcement manufactured in the present embodiment（1）Single part, i.e., it is anterior（2）, substrate
（6）And longitudinal rib（8）Relevant dimension, and the rigidity for measuring.
Low-position bumper guard reinforcement is used for being assembled into automobile（Toyota's Yaris 2010）It is interior.It is anterior（2）Header board（3）With
Back plate（4）Arc corresponding to automobile be 2010 front bumper panel of Toyota's Yaris arc.
Low-position bumper guard reinforcement is prepared by injection-molded（1）, and its total be one inject mould
Integrally prepare in operation processed and formed.
Material for preparing low-position bumper guard reinforcement is the PP that glass fibre is strengthened.It includes 60% homopolymerization poly- third
The conventional additives of alkene, 30%SGF and surplus, its MFR are 4.5/10min.Glass fibre is SGF（Short glass fiber）, which is indulged
Horizontal ratio is 50.
Strengthened using injecting molding machine " Engle 1500T " the manufacture low-position bumper guard of company limited of Engle Austria
Part（1）.The injecting molding machine has the bucket for heating and plastifying material.The heating of this barrel and the temperature of plasticized region are successively
For 210 DEG C, 220 DEG C, 230 DEG C, 240 DEG C.Inject the temperature of melt and in mould gateway（gate of the mold）
Melt temperature be 240 DEG C.Injection pressure is set to into 30MPa and injection speed is set to into 200cm3/ the second.Injection time
For 4 seconds.After injection, the pressure of mould is maintained 10 seconds in 20MPa, is then cooled down.For preparing low-position bumper guard reinforcement
Part（1）Mould be by Huangyan Xingtai Plastic Mould Co., Ltd.（Zhejiang Province, China Huangyan）Production.The mould includes two parts：
Core side and die cavity side（cavity side）.The relief pattern of core side correspond to object construction, membrane cavity side have with and core
The corresponding image shape of pattern and the concave surface pattern of size of heart side.
Using the widely used program-ABAQUS in engineering simulation field（6th edition, 12-2,2013）/ standard code, by meter
Calculation machine simulated determination rigidity.
In testing, substrate（6）Rear flange（9）Fixed, and in front portion（2）Header board（3）Two regions altogether
320mm2Upper applying 2400N loads, i.e. header board（3）Center and front portion（2）Header board（3）Arc curvature flex point at.
Under room temperature, determine and apply the deformation on direction at two test points in load, be as a result expressed as U1（It is anterior（2）Header board
（3）Center and U2（It is anterior（2）Header board（3）Curvature flex point）.Rigidity is defined as U1 or U2 divided by the load for applying.
Table 1：
Note：The rigidity of test is 1137 and 1076N/mm, corresponds respectively to U1 and U2.
Test 2
Guide is assessed according to Euro-NCAP（2014 editions）, using ABAQUS/EXPLICIT block codes and FLEX PLI
GTR（2.0 version）Lower limb type Counterfeit Item tests pedestrian lower leg protection by computer simulation.
By by low-position bumper guard reinforcement via five points（Center, on the outside of two, and two between center and outside
Point）It is connected respectively on the holder of bumper fascia and cooling component, so as to low-position bumper guard reinforcement is installed to automobile
In（Toyota's Yaris 2010）.FLEX PLI GTP lower limb type Counterfeit Items encounter the bumper of automobile with the initial velocity of 40km/hr
The center of panel.Three parameters of lower limb type Counterfeit Item are determined at room temperature：Tibia moment of flexure, MCL（Medial collateral ligament）Elongation and ACL
（Anterior cruciate ligament）/PCL（Posterior cruciate ligament）Elongation.Tibia moment of flexure represents tibia damage, and which is the worst performance of tibia moment of flexure.
MCL extends and ACL/PCL elongations represent knee injuries.
Table 2 lists the comparison of test value and the standard value allowed according to Euro-NCAP standard.
Table 2：
According to table 2, the low-position bumper guard reinforcement of this embodiment of the invention can be learnt（1）Show in testing excellent
Performance, so as to provide excellent pedestrian shank protection.And, the low-position bumper guard reinforcement（1）Weight saving simultaneously can be with
The low-position bumper guard reinforcement lower cost production prepared by the polyamide than being strengthened by glass fibre or metal.
Embodiment 2
Table 3 lists another low-position bumper guard reinforcement（1）Single part be front portion（2）, substrate（6）And longitudinal rib
Bar（8）Relevant dimension, and their rigidity.Low-position bumper guard reinforcement in embodiment 2（1）Using such as 1 institute of embodiment
The method manufacture stated.And, the low-position bumper guard reinforcement（1）With with embodiment 1 in low-position bumper guard reinforcement（1）Phase
Same quality.
According to test 1 as above, detection and measure rigidity.
Table 3：
Table 4 lists the tibia moment of flexure of the low-position bumper guard reinforcement of measure, MCL（Medial collateral ligament）Elongation and ACL（Before
Ligamentaum cruciatum）/PCL（Posterior cruciate ligament）Elongation.These values are detected and are determined according to method described in above-mentioned test 2.
Table 4：
According to table 4, the low-position bumper guard reinforcement of the embodiment of the present invention 2 can be learnt（1）Show in testing excellent
Performance, so as to provide excellent pedestrian shank protection.And, the low-position bumper guard reinforcement（1）Weight saving simultaneously can be with
The low-position bumper guard reinforcement lower cost production prepared by the polyamide than being strengthened by glass fibre or metal.
Embodiment 3
Table 5 lists another low-position bumper guard reinforcement（1）Single part be front portion（2）, substrate（6）And longitudinal rib
Bar（8）Relevant dimension, and their rigidity.Low-position bumper guard reinforcement in embodiment 3（1）Using such as 1 institute of embodiment
The method manufacture stated.And, the low-position bumper guard reinforcement（1）With with embodiment 1 in low-position bumper guard reinforcement（1）Phase
Same quality.
According to test 1 as above, detection and measure rigidity.
Table 5：
Table 6 lists the tibia moment of flexure of the low-position bumper guard reinforcement of measure, MCL（Medial collateral ligament）Elongation and ACL（Before
Ligamentaum cruciatum）/PCL（Posterior cruciate ligament）Elongation.These values are detected and are determined according to method described in above-mentioned test 2.
Table 6：
According to table 6, it is also possible to learn the low-position bumper guard reinforcement of the embodiment of the present invention 3（1）Show in testing excellent
Different performance, so as to provide excellent pedestrian shank protection.And, the low-position bumper guard reinforcement（1）Weight saving simultaneously can
With the low-position bumper guard reinforcement lower cost production prepared by the polyamide than being strengthened by glass fibre or metal.
Embodiment 4
Table 7 lists another low-position bumper guard reinforcement（1）Single part be front portion（2）, substrate（6）And longitudinal rib
Bar（8）Relevant dimension, and their rigidity.Low-position bumper guard reinforcement in embodiment 4（1）Using such as 1 institute of embodiment
The method manufacture stated.And, the low-position bumper guard reinforcement（1）With with embodiment 1 in low-position bumper guard reinforcement（1）Phase
Same quality.
According to test 1 as above, detection and measure rigidity.
Table 7：
Table 8 lists the tibia moment of flexure of the low-position bumper guard reinforcement of measure, MCL（Medial collateral ligament）Elongation and ACL（Before
Ligamentaum cruciatum）/PCL（Posterior cruciate ligament）Elongation.These values are detected and are determined according to method described in above-mentioned test 2.
Table 8：
According to table 8, the low-position bumper guard reinforcement of the embodiment of the present invention 4 can be learnt（1）Show in testing excellent
Performance, so as to provide excellent pedestrian shank protection.And, the low-position bumper guard reinforcement（1）Weight saving simultaneously can be with
The low-position bumper guard reinforcement lower cost production prepared by the polyamide than being strengthened by glass fibre or metal.
Claims (15)
1. low-position bumper guard reinforcement (1), including
A) anterior (2), which includes header board (3), back plate (4) and V-groove (5), and the V-groove (5) is in header board (3) and back plate (4)
Between extend, wherein the back plate (4) is be arranged in parallel with header board (3),
B) substrate (6), which is connected to the bottom of anterior (2) so that the leading edge (7) of substrate (6) is connected to front portion with right angle substantially
The bottom of back plate (4), and
C) longitudinal rib (8), which extends and connected to the upper surface of substrate (6) along impact direction.
2. low-position bumper guard reinforcement (1) as claimed in claim 1, wherein the header board (3) and back plate (4) are curved.
3. low-position bumper guard reinforcement (1) as claimed in claim 1 or 2, wherein the V-groove (5) is by multiple V-type units
(5a) constitute, it is preferable that the drift angle " α " of each V-type unit (5a) is 20 ° to 120 °, preferably 45 ° to 90 °, and most preferably
60 ° to 90 °.
4. low-position bumper guard reinforcement (1) as claimed any one in claims 1 to 3, wherein the height " h " of header board (3) and
The height " h " of back plate (4) is of substantially equal with the height " h " of V-groove (5).
5. the low-position bumper guard reinforcement (1) as any one of Claims 1-4, wherein substrate (6) are substantially smooth
's.
6. the low-position bumper guard reinforcement as any one of claim 1 to 5, wherein the leading edge (7) of the substrate (6) is
Arc, it is preferably identical with the arc of the back plate (4) of anterior (2).
7. the low-position bumper guard reinforcement (2) as any one of claim 1 to 6, wherein the substrate (6) is including rear convex
Edge (9).
8. low-position bumper guard reinforcement (1) as claimed in claim 7, wherein the thickness of the rear flange (9) and substrate (6)
Thickness " t1 " is of substantially equal.
9. the low-position bumper guard reinforcement (1) as any one of claim 1 to 8, wherein the longitudinal rib (8) and base
Plate (6) is stood substantially at a right angle, and the longitudinal rib (8) is Unitarily molded on substrate (6) with identical material.
10. low-position bumper guard reinforcement (1) as claimed in any one of claims 1-9 wherein, wherein
A) height " h " of longitudinal rib (8) and the height " h " of V-groove (5) are of substantially equal；And/or
B) height " h " of longitudinal rib (8) and the scope of the ratio h/t1 of the thickness " t1 " of substrate (6) are 2 to 5, preferably 3 to 5, most
It is preferred that 4 to 5；And/or
C) the distance between longitudinal rib (8) " d " is of substantially equal, between preferably two adjacent longitudinal ribs (8) away from
It is 10 to 60mm from " d ", preferably 20 to 50mm, most preferably 20 to 30mm.
The 11. low-position bumper guard reinforcements (1) as any one of claim 1 to 10,
One end of wherein longitudinal rib (8) is vertically connected to the back plate (4) of anterior (2), and the other end of longitudinal rib (8) is vertical
Be connected to the rear flange (9) of substrate (6).
The 12. low-position bumper guard reinforcements (1) as any one of claim 1 to 11, wherein the longitudinal rib (8)
Length changes in the position of substrate (6) with which, it is preferable that positioned at longitudinal rib (8) tool of the central axis of the substrate (6)
There is greatest length, the longitudinal rib (8) at the lateral surface of the substrate (6) is with minimum length.
The 13. low-position bumper guard reinforcements (1) as any one of claim 1 to 12,
The thickness " t2 " of wherein described longitudinal rib (8) is 0.4 to 1.0 with the ratio t2/t1 of the thickness " t1 " of substrate (6), preferably
0.5 to 0.8, most preferably 0.5 to 0.75.
The 14. low-position bumper guard reinforcements (1) as any one of claim 1 to 13,
Wherein described low-position bumper guard reinforcement (1) is prepared by the polypropylene strengthened by glass fibre.
A kind of 15. motor vehicles, which includes the low-position bumper guard reinforcement (1) as any one of claim 1 to 14.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/000348 WO2015143579A1 (en) | 2014-03-28 | 2014-03-28 | Lower bumper stiffener and automotive vehicle thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106536288A true CN106536288A (en) | 2017-03-22 |
Family
ID=54193836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480078399.3A Pending CN106536288A (en) | 2014-03-28 | 2014-03-28 | Lower bumper stiffener and automotive vehicle thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106536288A (en) |
| WO (1) | WO2015143579A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019524546A (en) * | 2016-08-05 | 2019-09-05 | サビック グローバル テクノロジーズ ビー．ブイ． | Pedestrian protection device and associated method |
| KR102136535B1 (en) * | 2018-12-12 | 2020-07-22 | 주식회사 성우하이텍 | Lower stiffener unit for vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1038732A1 (en) * | 1999-03-25 | 2000-09-27 | Compagnie Plastic Omnium | Bumper including lower protection beam |
| DE10042037B4 (en) * | 2000-08-26 | 2004-05-27 | Audi Ag | Front end of a motor vehicle |
| CN1951736A (en) * | 2005-10-19 | 2007-04-25 | 小岛压力加工工业株式会社 | Pedestrian protection apparatus, and method of tuning load characteristic of the apparatus |
| CN101228050A (en) * | 2004-07-21 | 2008-07-23 | Gm全球科技运作股份有限公司 | Reinforcing element for a lower area of a front bumper, and correspondingly equipped bumper for a motor vehicle |
| JP2009269564A (en) * | 2008-05-09 | 2009-11-19 | Kanto Auto Works Ltd | Pedestrian protection structure of automobile |
| CN102910128A (en) * | 2011-12-27 | 2013-02-06 | 延锋彼欧汽车外饰系统有限公司 | Pedestrian leg buffer beam of automobile bumper |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2852587A1 (en) * | 2003-03-20 | 2004-09-24 | Thyssenkrupp Elevator Mfg F | DEVICE FOR RELEASING A PARACHUTE FOR AN ELEVATOR CAB, AS WELL AS THE PARACHUTE THUS EQUIPPED |
| FR2908716B1 (en) * | 2006-11-20 | 2009-07-03 | Valeo Systemes Thermiques | PROTECTIVE DEVICE FOR MOTOR VEHICLE AND FRONT PANEL MODULE PROVIDED WITH SUCH A DEVICE |
| CN202389322U (en) * | 2011-12-27 | 2012-08-22 | 延锋彼欧汽车外饰系统有限公司 | Anti-collision beam for lower leg of pedestrian of automobile bumper |
-
2014
- 2014-03-28 WO PCT/CN2014/000348 patent/WO2015143579A1/en active Application Filing
- 2014-03-28 CN CN201480078399.3A patent/CN106536288A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1038732A1 (en) * | 1999-03-25 | 2000-09-27 | Compagnie Plastic Omnium | Bumper including lower protection beam |
| DE10042037B4 (en) * | 2000-08-26 | 2004-05-27 | Audi Ag | Front end of a motor vehicle |
| CN101228050A (en) * | 2004-07-21 | 2008-07-23 | Gm全球科技运作股份有限公司 | Reinforcing element for a lower area of a front bumper, and correspondingly equipped bumper for a motor vehicle |
| CN1951736A (en) * | 2005-10-19 | 2007-04-25 | 小岛压力加工工业株式会社 | Pedestrian protection apparatus, and method of tuning load characteristic of the apparatus |
| JP2009269564A (en) * | 2008-05-09 | 2009-11-19 | Kanto Auto Works Ltd | Pedestrian protection structure of automobile |
| CN102910128A (en) * | 2011-12-27 | 2013-02-06 | 延锋彼欧汽车外饰系统有限公司 | Pedestrian leg buffer beam of automobile bumper |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015143579A1 (en) | 2015-10-01 |
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