CN201472281U - Energy absorption block device and anti-collision device provided with same - Google Patents
Energy absorption block device and anti-collision device provided with same Download PDFInfo
- Publication number
- CN201472281U CN201472281U CN200920208971XU CN200920208971U CN201472281U CN 201472281 U CN201472281 U CN 201472281U CN 200920208971X U CN200920208971X U CN 200920208971XU CN 200920208971 U CN200920208971 U CN 200920208971U CN 201472281 U CN201472281 U CN 201472281U
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- block device
- energy
- absorbent block
- boss
- energy absorbent
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Abstract
The utility model discloses an energy absorption block device comprising energy absorption parts positioned at both ends and an energy absorption part positioned in the central region, wherein the energy absorption part positioned in the central region is one or more hollow bosses. The energy absorption parts positioned at both ends are fan-shaped bosses, and the section of the boss is fan-shaped. The utility model combines the pedestrian protection performance and low-speed collision performance, not only can effectively reduce lateral impact force and bending angle of the pedestrian legs and reduce the leg injuries, but also can effectively reduce the intrusion volume of the functional parts in low-speed collision and reduce the extent of the damage of the vehicle body. The energy absorption block device has simple structure, low cost and easy installation. The utility model also provides an anti-collision device provided with the energy absorption block device.
Description
Technical field
The utility model relates to a kind of energy absorbent block device, especially a kind of energy absorbent block device that is applicable to pedestrian protecting and low speed collision.
Background technology
In the standard GB 17354 of low speed collision, vehicle is subjected to an as prescribed requirement design-calculated pendulum with behind the specified speed bump, and vehicle should be able to satisfy following requirement: 1) to continue normal operation also high-visible for illumination and signalling apparatus; 2) car bonnet and car door can normally open and close; 3) fuel of vehicle and cooling system no leak phenomenon.In engineering design, mainly the collision energy that is absorbed by control front bumper and energy absorbent block device is avoided the damage of pendulum collision to said system, satisfies the requirement of low speed collision rules.
Energy absorbent block is divided into two kinds of foam type energy absorbent block and injection moulding formula energy absorbent block according to the difference of raw MAT'L and manufacturing process.The foam type energy absorbent block is hot-forming for foaming PP (polypropylene) particle, can select the material of different densities for use according to the difference of performance requriements, in order to satisfy the GB requirement of low speed collision, generally adopts higher density (60kg/m
3) energy absorbent block, but when pedestrian and automotive front bumped, harder energy absorbent block can cause very big injury to pedestrian lower leg.
The energy absorbent block of prior art, what have can only realize simple function; By form complex structure by a plurality of parts.Therefore designing a kind of energy absorbent block device that overcomes the defective of aforementioned prior art is necessary.
Summary of the invention
In order to solve the existing various deficiencies of energy absorbent block, the utility model provides a kind of energy absorbent block device, and purpose is: the lateral impact power of pedestrian lower leg in the time of both can having effectively reduced the collision of pedestrian and automotive front reduces leg injury; Can effectively reduce the intrusion amount of functor in the low speed collision again, reduce the vehicle body extent of damage.
In order to realize top said purpose, apparatus structure of the present utility model is such design-calculated: a kind of energy absorbent block device, comprise energy-absorbing portion that is positioned at two ends and the energy-absorbing portion that is positioned at central region, and the energy-absorbing portion that is positioned at central region is one or more hollow boss.
Preferably, the front end of central region is provided with arc boss.
Preferably, the energy-absorbing portion at two ends is fan-shaped boss, and the boss cross section is fan-shaped.
Preferably, the horizontal profile of each described hollow boss is trapezoidal or square.
Preferably, when hollow boss is trapezoidal, trapezoidal going to the bottom near front end, scope is 65～90mm; The upper base scope is 45～70mm; Altitude range is 35～45mm.
Preferably, the arc boss altitude range is 100～125mm, and thickness range is 15～45mm.
Preferably, fan-shaped boss height is 100～125mm, and the edge lengths near central region in the boss cross section is 45～65mm, and another side length is 100～250mm.
Preferably, the energy absorbent block device by density less than 30kg/m
3Low density material make.
A kind of anticollision device, described device comprises covering, crash bar and the energy absorbent block device between described covering and crash bar, wherein, described energy absorbent block device comprises the energy-absorbing portion that is positioned at two ends and is positioned at the energy-absorbing portion of central region that the energy-absorbing portion that is positioned at central region is one or more hollow boss.
Preferably, the energy absorbent block device length is consistent with the length of Guard Assy.
The utility model is applicable to the energy absorbent block device of pedestrian protecting and low speed collision, by designing hollow boss structure, has reduced the impact acceleration that the pedestrian lower leg knee joint is subjected in the collision effectively, avoids pedestrian lower leg that the injury of fracture takes place.Strengthen boss mechanism by the fan-shaped reinforcement boss structure at two ends and the arc of front end again, actv. has increased the energy-absorbing area of energy absorbent block in the low speed collision, avoids automobile function spare and vehicle body impaired.The utility model is simple in structure, with low cost, and is simultaneously easy for installation, has excellent popularization.
Description of drawings
Below in conjunction with accompanying drawing energy absorbent block device of the present utility model is elaborated, wherein:
Fig. 1 is the integral structure figure of a kind of embodiment of energy absorbent block device of the present utility model;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the upward view of Fig. 1;
Fig. 4 is the front view of Fig. 1;
Fig. 5 is the section drawing of energy absorbent block device of the present utility model and preceding covering and Guard Assy;
Fig. 6 shows bump integral structure section drawing when contacting of energy absorbent block device of the present utility model and pedestrian lower leg;
The injured integral structure section drawing of serious position of shank when Fig. 7 shows energy absorbent block device of the present utility model and pedestrian lower leg and bumps;
Integral structure section drawing when Fig. 8 shows energy absorbent block device of the present utility model pendulum is positioned at initial position when low speed collision;
Integral structure section drawing when Fig. 9 shows energy absorbent block device of the present utility model pendulum when low speed collision and is positioned at maximum intrusion amount.
The specific embodiment
See also Fig. 1 to Fig. 4, a kind of embodiment of energy absorbent block device of the present utility model comprises the trapezoid boss 20 that is positioned at central region, is used to protect the pedestrian lower leg knee joint; Comprise the fan-shaped boss 10 that is positioned at two end regions, be used for protecting headlight, fog lamp functor not impaired at low speed collision; The arc boss 30 that also comprises front end area, arc boss 30 not only protect pedestrian lower leg to prevent that knee joint from bending, and play the not impaired effect of protection car bonnet functor in low speed collision.
See also Fig. 5, the section drawing of energy absorbent block device and preceding covering and Guard Assy, in this 1/2nd section drawing, energy absorbent block device 1 of the present utility model is between preceding covering 2 and Guard Assy 3.The entire length of energy absorbent block device can be longer or short slightly slightly than Guard Assy, and preferably both are consistent.The energy absorbent block device preferably adopts density less than 30kg/m
3Low density material, foam etc. for example.
See also Fig. 1, the hollow boss in the described energy absorbent block device, boss section roughly are trapezoidal.This energy absorbent block device has adopted the setting of interval type trapezoid boss, promptly is provided with one or more hollow boss in energy absorbent block central region compartment of terrain, and hollow boss section is trapezoidal.Satisfying on pedestrian protecting and the low-tach performance basis, the hollow boss setting of interval type has been realized the target of loss of weight, has improved the efficient of structure.Hollow boss altitude range is 35～45mm, the close front end of going to the bottom of hollow boss trapezoidal cross-section, and scope is 65～90mm, the upper base scope is 45～70mm.During concrete the use, the length of preferred trapezoidal bottom 100 is 85 millimeters, and the trapezoidal length that goes up base 200 is 65 millimeters, and the length of thickness edges 300 is 40 millimeters.Adopt such design, when pedestrian lower leg strikes the automobile front beam system, pedestrian lower leg knee joint and energy absorbent block are clashed into, this trapezoidal reinforcement boss can make energy absorbent block absorb enough Impact energies, reduce kneed impact acceleration of pedestrian lower leg and angle of bend, avoid the shank shin bone that the fracture phenomenon takes place.Fig. 6 shows just bumped integral structure section drawing when contacting of energy absorbent block device 1 of the present utility model and pedestrian lower leg ram 4; The injured integral structure section drawing of serious position of shank when Fig. 7 shows energy absorbent block device 1 of the present utility model and pedestrian lower leg ram 4 and bumps.From figure as can be known, the fan-shaped reinforcement boss structure at two ends and the arc of front end are strengthened boss mechanism, have reduced the impact acceleration that the pedestrian lower leg knee joint is subjected in the collision effectively, avoid pedestrian lower leg that the injury of fracture takes place.
In one embodiment, the central region of energy absorbent block device is provided with square boss, and square boss is provided with at interval.
See also Fig. 1, be positioned at the fan-shaped boss 10 in zone, two ends in the described energy absorbent block device, it is fan-shaped that the boss cross section roughly is.Boss height 600 is 100～125mm, is 45～65mm near limit 500 length of central region in the boss cross section, and another side 400 length are 100～250mm (square edge adjacent with limit 500).During concrete the use, the length on preferred fan-shaped boss limit 400 is 150 millimeters, and the length of scallop 500 is 55 millimeters, and the length of thickness edges 600 is 115 millimeters.Because the restriction of automotive front moulding, in low speed collision, the headlight and the fog lamp functor of automobile two end regions are easier to suffer damage, so be positioned at the fan-shaped boss 10 employing broads at two ends, thicker thickness in the energy absorbent block device; Adopting such design is in order to strike herein when pendulum, and fan-shaped reinforcement boss can be out of shape abundance and absorb Impact energy, thereby delays the moment that pendulum strikes automotive front headlight and fog lamp, reduces headlight and the impaired risk of fog lamp functor.
Fig. 8 shows when low speed collision pendulum 5 and energy absorbent block device 1 and rigidly connects integral structure section drawing when touching, the integral structure section drawing when Fig. 9 shows when low speed collision pendulum 5 and is positioned at maximum intrusion amount.From figure as can be known, actv. has increased the energy-absorbing area of energy absorbent block in the low speed collision, avoids automobile function spare and vehicle body impaired.
See also Fig. 1, be positioned at the arc boss 30 of front end area in the described energy absorbent block device, the arc boss altitude range is 100～125mm, and thickness range is 15～45mm.During concrete the use, preferably the length of this arc thickness edges 700 is 30 millimeters, and arc height limit equates fully with the thickness edges 600 of fan-shaped boss 10.Adopt such design, at first in low speed collision, when pendulum strikes the automotive front covering, this arc boss energy absorbent block can the absorption portion Impact energy, prevents that pendulum from knocking down rapidly on the automobile engine cover plate, can guarantee that car bonnet can normally open; Secondly when the pedestrian bumps with automobile, this arc boss energy absorbent block can the absorption portion energy, prevents that pedestrian lower leg knee joint bending angle is excessive and causes fracturing.
For the part that reduces simultaneously easy for installation becomes to produce cost, whole energy absorbent block device can be by a secondary mould one step foaming moulding.
The utility model has reduced the impact acceleration that the pedestrian lower leg knee joint is subjected in the collision effectively, avoids pedestrian lower leg that the injury of fracture takes place, and has increased the energy-absorbing area of energy absorbent block in the low speed collision simultaneously, avoids automobile function spare and vehicle body impaired.
Claims (10)
1. an energy absorbent block device comprises energy-absorbing portion that is positioned at two ends and the energy-absorbing portion that is positioned at central region it is characterized in that the energy-absorbing portion that is positioned at central region is one or more hollow boss.
2. energy absorbent block device according to claim 1 is characterized in that the front end of central region is provided with arc boss.
3. energy absorbent block device according to claim 1 is characterized in that, the energy-absorbing portion at described two ends is fan-shaped boss, and the boss cross section is fan-shaped.
4. energy absorbent block device according to claim 1 is characterized in that, the horizontal profile of each described hollow boss is trapezoidal or square.
5. energy absorbent block device according to claim 4 is characterized in that, described hollow boss is trapezoidal, trapezoidal going to the bottom near front end, and scope is 65～90mm; The upper base scope is 45～70mm; Altitude range is 35～45mm.
6. energy absorbent block device according to claim 2 is characterized in that, described arc boss altitude range is 100～125mm, and thickness range is 15～45mm.
7. energy absorbent block device according to claim 3 is characterized in that, described fan-shaped boss height is 100～125mm, and the edge lengths near central region in the boss cross section is 45～65mm, and another side length is 100～250mm.
8. according to any one described energy absorbent block device among the claim 1-7, it is characterized in that, the energy absorbent block device by density less than 30kg/m
3Low density material make.
9. anticollision device, it is characterized in that, described device comprises covering, crash bar and the energy absorbent block device between described covering and crash bar, wherein, described energy absorbent block device comprises the energy-absorbing portion that is positioned at two ends and is positioned at the energy-absorbing portion of central region that the energy-absorbing portion that is positioned at central region is one or more hollow boss.
10. anticollision device according to claim 9 is characterized in that, the equal in length of energy absorbent block device length and Guard Assy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920208971XU CN201472281U (en) | 2009-09-17 | 2009-09-17 | Energy absorption block device and anti-collision device provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920208971XU CN201472281U (en) | 2009-09-17 | 2009-09-17 | Energy absorption block device and anti-collision device provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201472281U true CN201472281U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920208971XU Expired - Fee Related CN201472281U (en) | 2009-09-17 | 2009-09-17 | Energy absorption block device and anti-collision device provided with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201472281U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897137A (en) * | 2011-09-14 | 2013-01-30 | 延锋彼欧汽车外饰系统有限公司 | Pedestrian protection device for automobile |
| CN102910139A (en) * | 2011-09-14 | 2013-02-06 | 延锋彼欧汽车外饰系统有限公司 | Vehicle anticollision device capable of protecting shank of pedestrian |
| CN105882575A (en) * | 2014-11-14 | 2016-08-24 | 交通运输部公路科学研究所 | Dangerous goods transport vehicle side protection device |
-
2009
- 2009-09-17 CN CN200920208971XU patent/CN201472281U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897137A (en) * | 2011-09-14 | 2013-01-30 | 延锋彼欧汽车外饰系统有限公司 | Pedestrian protection device for automobile |
| CN102910139A (en) * | 2011-09-14 | 2013-02-06 | 延锋彼欧汽车外饰系统有限公司 | Vehicle anticollision device capable of protecting shank of pedestrian |
| CN102897137B (en) * | 2011-09-14 | 2015-01-07 | 延锋彼欧汽车外饰系统有限公司 | Pedestrian protection device for automobile |
| CN105882575A (en) * | 2014-11-14 | 2016-08-24 | 交通运输部公路科学研究所 | Dangerous goods transport vehicle side protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20170917 |