CN202389322U - Anti-collision beam for lower leg of pedestrian of automobile bumper - Google Patents
Anti-collision beam for lower leg of pedestrian of automobile bumper Download PDFInfo
- Publication number
- CN202389322U CN202389322U CN2011205576599U CN201120557659U CN202389322U CN 202389322 U CN202389322 U CN 202389322U CN 2011205576599 U CN2011205576599 U CN 2011205576599U CN 201120557659 U CN201120557659 U CN 201120557659U CN 202389322 U CN202389322 U CN 202389322U
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- pedestrian
- collision prevention
- prevention girders
- bumper
- shank
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Abstract
The utility model provides an anti-collision beam for the lower leg of a pedestrian of an automobile bumper, wherein one end of the anti-collision beam is connected with the bumper, and the other end of the anti-collision beam is connected with a framework at the front end of an automobile body; and along a direction from the bumper to the automobile body, the anti-collision beam for the lower leg of a pedestrian comprises a first stage of energy absorption area and a second stage of energy absorption area which are adjacent to each other, wherein the position of the first stage of energy absorption area in a vertical direction is higher than the position of the second stage of energy absorption area. The anti-collision beam for the lower leg of a pedestrian of an automobile bumper provided by the utility model is easy in control for rigidity, capable of effectively reducing the value of injury on the lower leg of the pedestrian in case of a collision, as well as low in production and maintenance costs.
Description
Technical field
The utility model belongs to field of automobile, is specifically related to a kind of pedestrian's shank collision prevention girders of Federal bumper.
Background technology
Along with the development of automotive technology and the raising of people's awareness of safety; The protection of automobile no longer is confined to protect the passenger in the car; But expand the pedestrian who bumps with automobile to, when automobile and pedestrian bump, all be usually vehicle body directly and pedestrian's calf come in contact; Thereby pedestrian's calf is directly damaged, be difficult to satisfy the requirement of GB GB/T 24550-2009.
The bumper assembly of prior art is divided into following several kinds of situation:
(1) no pedestrian's shank collision prevention girders structure, shortcoming are that shank can produce very big angle of bend when vehicle and pedestrian bump, and increase pedestrian's shank injury values.
(2) the shank collision prevention girders is elongated thin-wall stamping part structure, and weak point is that the shank collision prevention girders of sheet metal structural can produce big plastic deformation and can't recover when vehicle and pedestrian's shank bump, and needs to change this part, causes cost of parts to rise.
(3) the shank collision prevention girders is the Plastic Parts structure.As known in this field, the injury values of the rigidity of shank collision prevention girders and pedestrian's shank has very confidential relation: when automobile and pedestrian bump, if the rigidity of shank collision prevention girders is very big, can cause bigger calf shank acceleration/accel; If rigidity is less, then can produce bigger shank angle of bend, both of these case all can produce very big injury to pedestrian's shank, gently then fractures, and serious then can cause shank maimed.And existing Plastic Parts shank collision prevention girders does not take into full account the influence of its structure pair and shank collision prevention girders rigidity and for the influence of pedestrian's shank injury values; Only has one-level energy-absorbing zone; When the rigidity of this structure can't satisfy pedestrian protection test and requires, rigidity adjustment difficulty was bigger, possibly cause mould to revise difficulty; Even die sinking again, increased productive costs and product development cycle greatly.
The utility model content
The utility model technical matters to be solved is to provide a kind of pedestrian's shank collision prevention girders of Federal bumper, so that the rigidity of this pedestrian's shank collision prevention girders is controlled easily, to the injury values of pedestrian's shank, reduces and produces and maintenance cost when effectively reducing collision.
For addressing the above problem, the utility model adopts following technical scheme:
A kind of pedestrian's shank collision prevention girders of Federal bumper; One end links to each other with bumper/spoiler; The other end links to each other with the body structure skeleton; Along the direction from the bumper/spoiler to the vehicle body, this pedestrian's shank collision prevention girders comprises one-level energy-absorbing zone and the secondary energy-absorbing zone that is adjacent to each other, and wherein the position of one-level energy-absorbing zone in the vertical direction is higher than secondary energy-absorbing zone.
Said secondary energy-absorbing zone comprises the bottom surface that has angle with horizontal surface.
Said one-level energy-absorbing zone and secondary energy-absorbing zone respectively comprise a plurality of strengthening ribs of arranging side by side along the direction from the bumper/spoiler to the vehicle body.
The wall thickness of said strengthening rib is 1.5mm to 3mm.
Along the direction from the bumper/spoiler to the vehicle body, the strengthening rib in secondary energy-absorbing zone has the cross section that reduces suddenly.
Said pedestrian's shank collision prevention girders is made of plastics.
Pedestrian's shank collision prevention girders of the Federal bumper of the utility model; Along one-level energy-absorbing zone and the secondary energy-absorbing zone that the direction setting from the bumper/spoiler to the vehicle body is adjacent to each other; Wherein the position of one-level energy-absorbing zone in the vertical direction is higher than secondary energy-absorbing zone; When vehicle and pedestrian bumped, the shank collision prevention girders was easily around producing the rigidity of upset with adjustment shank collision prevention girders, and through in one-level energy-absorbing zone and secondary energy-absorbing zone, a plurality of strengthening ribs of arranging side by side along the direction from the bumper/spoiler to the vehicle body being set; Be easy to adjust the rigidity of shank collision prevention girders; Thereby reduce the acceleration/accel and the ligament shear displacemant that in the collision pedestrian's shank are impacted, effectively reduce when colliding injury values, and production and maintenance cost are lower pedestrian's shank.
Description of drawings
Fig. 1 is the block diagram of pedestrian's shank collision prevention girders of the Federal bumper of the utility model;
Fig. 2 is the birds-eye view of pedestrian's shank collision prevention girders of the Federal bumper of the utility model;
Fig. 3 is the cutaway view along A-A line among Fig. 1;
Fig. 4 is the partial perspective view of pedestrian's shank collision prevention girders of the Federal bumper of the utility model.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the utility model.
Fig. 1, Fig. 2 show pedestrian's shank collision prevention girders of the Federal bumper of the utility model; This shank collision prevention girders is made of plastics; One end links to each other with the bumper/spoiler (not shown) through 8 C type nut clamp 3, and the other end links to each other with body structure skeleton (not shown) through 5 bolts 4.Along the direction from the bumper/spoiler to the vehicle body; It is the directions X among Fig. 1; This shank collision prevention girders comprises the one-level energy-absorbing zone 1 and secondary energy-absorbing zone 2 that is adjacent to each other, and wherein the one-level position that can inhale regional 1 in the vertical direction is higher than secondary and can inhales regional 2, as shown in Figure 3; And secondary energy-absorbing zone 2 comprise one with the have angle bottom surface 8 of α of horizontal surface, the size of α depends primarily on the structure and the shape of bumper/spoiler.So, when Federal bumper and pedestrian's shank bumped, the shank collision prevention girders was easily around the upset of Y axle, with the rigidity of adjustment shank collision prevention girders on directions X, thereby when reducing collision to the injury values of pedestrian's shank to satisfy laws and regulations requirement.
As shown in Figure 4; One-level energy-absorbing zone 1 comprises a plurality of strengthening ribs 5 of arranging side by side along directions X; Secondary energy-absorbing zone 2 comprises a plurality of strengthening ribs 6 of arranging side by side along directions X; Can adjust the shank collision prevention girders in the rigidity on directions X and the Z direction through changing following parameter: the height h2 of the height h1 of one-level energy-absorbing zone strengthening rib 5, wall thickness t1, secondary energy-absorbing zone strengthening rib 6, the size of these four parameters of wall thickness t2 and shank collision prevention girders on directions X and Z direction rigidity be directly proportional; The numerical value that is above-mentioned four parameters is big more, and the rigidity value of shank collision prevention girders on directions X and Z direction is big more; These two parameters of spacing b and the rigidity of shank collision prevention girders on directions X and Z direction of the spacing a of one-level energy-absorbing zone strengthening rib 5 and secondary energy-absorbing zone strengthening rib 6 are inversely proportional to; The numerical value that is above-mentioned two parameters is big more, and the rigidity value of shank collision prevention girders on directions X and Z direction is more little.According to above-mentioned relation; Can adjust the rigidity of shank collision prevention girders on directions X and Z direction through the size that increases and reduce each parameter value; Thereby reduce the acceleration/accel and the ligament shear displacemant that in the collision pedestrian's shank are impacted, reduce when colliding injury values pedestrian's shank.Preferably, the wall thickness t1 of strengthening rib 5,6, t2 are 1.5mm to 3mm.
In addition, when vehicle and pedestrian bump, produce distortion according to preassigned position, on the strengthening rib 6 in secondary energy-absorbing zone 2, be provided with abrupt change of cross-section structure 7 in order to make the shank collision prevention girders.As shown in Figure 4; Along figure in directions X; I.e. direction from the bumper/spoiler to the vehicle body, the strengthening rib 6 in secondary energy-absorbing zone 2 has the cross section that reduces suddenly, thereby makes in the collision process; Distortion occurs in abrupt change of cross-section structure 7 places of rigidity flip-flop, has avoided causing the shank collision prevention girders also therefore pedestrian's shank to be damaged in the rigidity increase suddenly of a certain direction owing to the shank collision prevention girders contacts extruding with other part.
Above-described, be merely the preferred embodiment of the utility model, be not scope in order to qualification the utility model, the foregoing description of the utility model can also be made various variations.Be that every simple, equivalence of doing according to the claims and the description of the utility model application changes and modification, all fall into the claim protection domain of the utility model patent.
Claims (6)
1. pedestrian's shank collision prevention girders of a Federal bumper, an end links to each other with bumper/spoiler, and the other end links to each other with the body structure skeleton, it is characterized in that:
Along the direction from the bumper/spoiler to the vehicle body, this pedestrian's shank collision prevention girders comprises one-level energy-absorbing zone and the secondary energy-absorbing zone that is adjacent to each other, and wherein the position of one-level energy-absorbing zone in the vertical direction is higher than secondary energy-absorbing zone.
2. pedestrian's shank collision prevention girders of Federal bumper as claimed in claim 1 is characterized in that, said secondary energy-absorbing zone comprises the bottom surface that has angle with horizontal surface.
3. according to claim 1 or claim 2 pedestrian's shank collision prevention girders of Federal bumper is characterized in that said one-level energy-absorbing zone and secondary energy-absorbing zone respectively comprise a plurality of strengthening ribs of arranging side by side along the direction from the bumper/spoiler to the vehicle body.
4. pedestrian's shank collision prevention girders of Federal bumper as claimed in claim 3 is characterized in that, the wall thickness of said strengthening rib is 1.5mm to 3mm.
5. pedestrian's shank collision prevention girders of Federal bumper as claimed in claim 4 is characterized in that, along the direction from the bumper/spoiler to the vehicle body, the strengthening rib in secondary energy-absorbing zone has the cross section that reduces suddenly.
6. pedestrian's shank collision prevention girders of Federal bumper as claimed in claim 5 is characterized in that, said pedestrian's shank collision prevention girders is made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205576599U CN202389322U (en) | 2011-12-27 | 2011-12-27 | Anti-collision beam for lower leg of pedestrian of automobile bumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205576599U CN202389322U (en) | 2011-12-27 | 2011-12-27 | Anti-collision beam for lower leg of pedestrian of automobile bumper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202389322U true CN202389322U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205576599U Withdrawn - After Issue CN202389322U (en) | 2011-12-27 | 2011-12-27 | Anti-collision beam for lower leg of pedestrian of automobile bumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202389322U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103287381A (en) * | 2013-06-18 | 2013-09-11 | 延锋彼欧汽车外饰系统有限公司 | Energy absorption device of automobile |
| WO2015143579A1 (en) * | 2014-03-28 | 2015-10-01 | Borouge Sales & Marketing (Shanghai) Co., Ltd. | Lower bumper stiffener and automotive vehicle thereof |
| CN107176128A (en) * | 2016-03-11 | 2017-09-19 | 福特全球技术公司 | Bumper strengthens assembly |
| CN109050450A (en) * | 2018-08-08 | 2018-12-21 | 安徽天裕汽车零部件制造有限公司 | A kind of front anticollision beam of automobile |
| CN112758034A (en) * | 2021-01-05 | 2021-05-07 | 重庆长安汽车股份有限公司 | Pedestrian leg protection structure |
-
2011
- 2011-12-27 CN CN2011205576599U patent/CN202389322U/en not_active Withdrawn - After Issue
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102910128B (en) * | 2011-12-27 | 2015-06-03 | 延锋彼欧汽车外饰系统有限公司 | Pedestrian leg buffer beam of automobile bumper |
| CN103287381A (en) * | 2013-06-18 | 2013-09-11 | 延锋彼欧汽车外饰系统有限公司 | Energy absorption device of automobile |
| CN103287381B (en) * | 2013-06-18 | 2016-01-20 | 延锋彼欧汽车外饰系统有限公司 | A kind of energy absorption device of automobile |
| US9878687B2 (en) | 2013-06-18 | 2018-01-30 | Compagnie Plastic Omnium | Vehicle energy absorbing device |
| WO2015143579A1 (en) * | 2014-03-28 | 2015-10-01 | Borouge Sales & Marketing (Shanghai) Co., Ltd. | Lower bumper stiffener and automotive vehicle thereof |
| CN107176128A (en) * | 2016-03-11 | 2017-09-19 | 福特全球技术公司 | Bumper strengthens assembly |
| CN107176128B (en) * | 2016-03-11 | 2022-07-08 | 福特全球技术公司 | Bumper reinforcement assembly |
| CN109050450A (en) * | 2018-08-08 | 2018-12-21 | 安徽天裕汽车零部件制造有限公司 | A kind of front anticollision beam of automobile |
| CN112758034A (en) * | 2021-01-05 | 2021-05-07 | 重庆长安汽车股份有限公司 | Pedestrian leg protection structure |
| CN112758034B (en) * | 2021-01-05 | 2023-03-14 | 重庆长安汽车股份有限公司 | Pedestrian leg protection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120822 Effective date of abandoning: 20150603 |
|
| RGAV | Abandon patent right to avoid regrant |