CN110654334A - Automobile bumper made of foaming material - Google Patents
Automobile bumper made of foaming material Download PDFInfo
- Publication number
- CN110654334A CN110654334A CN201910994275.4A CN201910994275A CN110654334A CN 110654334 A CN110654334 A CN 110654334A CN 201910994275 A CN201910994275 A CN 201910994275A CN 110654334 A CN110654334 A CN 110654334A
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- China
- Prior art keywords
- cam
- outer side
- elastic
- side baffle
- baffle
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- 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
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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
- B60R19/023—Details
-
- 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
- B60R2019/026—Buffers, i.e. bumpers of limited extent
-
- 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
- B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses an automobile bumper made of foaming materials, which comprises an outer side baffle, an elastic plate and a plurality of rotating mechanisms, wherein: the elastic plates are arranged on the outer side baffle in parallel, a deformation space is formed between the elastic plates and the outer side baffle, and the plurality of rotating mechanisms are arranged in the deformation space along the length direction of the outer side baffle; the rotating mechanism comprises an installation shaft and a cam, the cam is rotatably installed on the installation shaft and is abutted against the outer side baffle and the elastic plate, and the cam rotates relative to the installation shaft when being extruded by the outer side baffle. The automobile bumper made of the foam material is simple in structure, when the outer side baffle is extruded, the outer side baffle extrudes the cam, the cam rotates relative to the mounting shaft, and the deformation of the elastic plate is reduced according to the law of energy conservation, so that the service life of the bumper is prolonged.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to an automobile bumper made of a foaming material.
Background
With the advent of the automobile over 100 years, it has not been possible to compare whether from the use of materials, construction to comfort, or from appearance to speed. The foaming material has the advantages of light weight, heat insulation, sound insulation, buffering and low price, and the application in life is increasing day by day. New foamed materials such as PU polyurethane foamed materials, polypropylene plastic foamed EPP materials and foamed polyethylene materials are becoming increasingly important in the automotive industry. For example, bumpers for automobiles are made of rigid foam PU polyurethane plastics. The conventional automobile bumper is generally provided with an elastic piece between an inner side baffle and an outer side baffle for buffering, but the buffering effect of the elastic piece is reduced along with oxidation, fatigue damage and the like generated along with the increase of the service time, so that the service life of the bumper is shortened.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides an automobile bumper made of a foaming material.
The invention provides an automobile bumper made of a foaming material, which comprises an outer side baffle, an elastic plate and a plurality of rotating mechanisms, wherein:
the elastic plates are arranged on the outer side baffle in parallel, a deformation space is formed between the elastic plates and the outer side baffle, and the plurality of rotating mechanisms are arranged in the deformation space along the length direction of the outer side baffle;
the rotating mechanism comprises an installation shaft and a cam, the cam is rotatably installed on the installation shaft and is abutted against the outer side baffle and the elastic plate, and the cam rotates relative to the installation shaft when being extruded by the outer side baffle.
In some embodiments it is preferred that the cam is elliptical.
In some embodiments, it is preferable that the line connecting the cam and the contact point of the outer barrier and the elastic plate is the major axis of the ellipse when the outer barrier is not pressed against the cam.
As a further optimized scheme of the invention, the automobile seat further comprises an inner side baffle, wherein the inner side baffle is arranged on the elastic plate in parallel, the inner side baffle and the outer side baffle are respectively positioned at two sides of the elastic plate, and an elastic piece is arranged between the inner side baffle and the elastic plate.
In some embodiments, the resilient member is a spring.
In some embodiments, a plurality of connecting plates are installed in the deformation space, two sides of each connecting plate are respectively connected with the outer side baffle and the elastic plate, and the installation shaft is installed on the connecting plates.
As a further optimized scheme of the invention, the connecting plate can deform along the width direction of the deformation space.
In some embodiments, the connecting plate includes a fixed plate, an elastic pressing member, and two sliding plates, the two sliding plates are slidably mounted on two sides of the fixed plate, the elastic pressing member is fixed between the sliding plates and the fixed plate, and the two sliding plates are connected to the outer side baffle and the elastic plate.
As a further optimized scheme of the invention, the cam resetting device further comprises a restoring assembly, and the restoring assembly is arranged on the mounting shaft and is used for driving the cam to reset.
In some embodiments, the restoring assembly includes a torsion spring and a connecting column, the torsion spring is sleeved on the mounting shaft, and two ends of the torsion spring are respectively connected with the cam through the connecting column.
The automobile bumper made of the foam material is simple in structure, when the outer side baffle is extruded, the outer side baffle extrudes the cam, the cam rotates relative to the mounting shaft, and the deformation of the elastic plate is reduced according to the law of energy conservation, so that the service life of the bumper is prolonged.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the connecting plate structure of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar designations denote like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
An automobile bumper made of a foamed material as shown in fig. 1 to 3 includes an outer barrier 1, an elastic plate 2, and a plurality of rotating mechanisms, wherein:
the elastic plates 2 are arranged on the outer side baffle plate 1 in parallel, a deformation space 10 is formed between the elastic plates 2 and the outer side baffle plate 1, a plurality of rotating mechanisms are arranged in the deformation space 10 along the length direction of the outer side baffle plate 1, a plurality of connecting plates 7 are arranged in the deformation space 10, two sides of each connecting plate 7 are respectively connected with the outer side baffle plate 1 and the elastic plates 2, the connecting plates 7 can deform along the width direction of the deformation space 10, each connecting plate 7 comprises a fixed plate 70, an extrusion elastic part 71 and two sliding plates 72, the two sliding plates 72 are respectively arranged on two sides of the fixed plate 70 in a sliding mode, the extrusion elastic part 71 is fixed between the sliding plates 72 and the fixed plate 70, and the two sliding plates 72 are respectively connected with;
the rotating mechanism comprises an installation shaft 3 and a cam 4, the installation shaft 3 is fixed between two adjacent fixing plates 70, the cam 4 is rotatably installed on the installation shaft 3, the cam 4 is abutted against the outer side baffle 1 and the elastic plate 2, the cam 4 rotates relative to the installation shaft 3 when being squeezed by the outer side baffle 1, the cam 4 is oval, and when the outer side baffle 1 does not squeeze the cam 4, a connecting line of contact points of the cam 4 and the outer side baffle 1 and the elastic plate 2 is a long axis of the oval;
the device also comprises an inner side baffle 5, wherein the inner side baffle 5 is arranged on the elastic plate 2 in parallel, the inner side baffle 5 and the outer side baffle 1 are respectively positioned at two sides of the elastic plate 2, an elastic piece 6 is arranged between the inner side baffle 5 and the elastic plate 2, and the elastic piece 6 is a spring;
still including recovering the subassembly, recover the unit mount and be used for driving cam 4 and reset on installation axle 3, recover the subassembly and include torsional spring 8 and spliced pole 9, the 8 suits of torsional spring are on installation axle 3, and 8 both ends of torsional spring are connected with cam 4 through spliced pole 9 respectively.
In the working process of the embodiment, when the outside baffle 1 is extruded by the outside, the cam 4 is extruded by the outside baffle 1, the elastic plate 2 is extruded by the cam 4, the elastic plate 2 is deformed to a certain extent, the cam 4 rotates, and the width of the deformation space 10 is further reduced, the torsion spring 8 is twisted to a certain extent and absorbs a part of energy in the cam rotating process, meanwhile, the sliding plate 72 extrudes the extrusion elastic piece 71 and slides in the sliding groove and extrudes the elastic piece 71 to deform, on one hand, a part of outside extrusion force is absorbed, and the buffering function is realized; when the external extrusion force disappears, the torsion spring 8 drives the cam 4 to reversely rotate and recover to the original position, so that the deformation of the outer side baffle plate 1 is reduced, the service life of the outer side baffle plate is prolonged, the extrusion elastic piece 71 drives the sliding plate 72 to recover under the action of the elastic force of the extrusion elastic piece, the outer side baffle plate 1 is extruded to enable the deformation of the outer side baffle plate to recover to a certain extent, and the service life of the outer side baffle plate is prolonged.
In the present embodiment, the cam 4 is oval in shape.
In the present embodiment, preferably, when the outer baffle 1 does not press the cam 4, the connecting line of the cam 4 and the contact point between the outer baffle 1 and the elastic plate 2 is the major axis of the ellipse, so as to reduce the size of the cam 4 and the thickness of the bumper.
In this embodiment, it is preferable that the impact-absorbing structure further includes an inner baffle 5, the inner baffle 5 is installed on the elastic plate 2 in parallel, the inner baffle 5 and the outer baffle 1 are respectively located on two sides of the elastic plate 2, and an elastic member 6 is arranged between the inner baffle 5 and the elastic plate 2, so as to further increase the buffer effect when the outer baffle 1 is impacted.
In the present embodiment, the elastic member 6 is preferably a spring, which is simple in structure and low in cost, and reduces the manufacturing cost of the bumper.
In this embodiment preferably, install polylith connecting plate 7 in the deformation space 10, the both sides of connecting plate 7 are connected with lateral baffle 1 and elastic plate 2 respectively, and installation axle 3 installs on connecting plate 7, and the installation of the installation axle 3 of being convenient for, installation axle 3 fixes on connecting plate 7 through welding or threaded mode.
In the present embodiment, it is preferable that the connecting plate 7 is deformable in the width direction of the deformation space 10, so that the service life of the bumper is increased.
In the embodiment, preferably, the connecting plate 7 includes a fixed plate 70, an elastic extrusion member 71 and two sliding plates 72, the two sliding plates 72 are respectively slidably mounted on two sides of the fixed plate 70, sliding slots are formed on two sides of the fixed plate 70, the sliding plates 72 are slidably mounted in the sliding slots, the elastic extrusion member 71 is fixed between the sliding plates 72 and the fixed plate 70, the elastic extrusion member 71 can be a spring, the two sliding plates 72 are respectively connected with the outer baffle 1 and the elastic plate 2 by welding, when the outer baffle 1 is externally extruded, the sliding plates 72 extrude the elastic extrusion member 71 and slide into the sliding slots, and the elastic extrusion member 71 deforms, so that on one hand, a part of external extrusion force is absorbed to achieve a buffering function, on the other hand, after the external extrusion force disappears, the elastic extrusion member 71 drives the sliding plates 72 to recover under the action of its own elastic force, and extrud, increasing the service life thereof.
In this embodiment, it is preferable that the bumper further includes a restoring assembly, the restoring assembly is mounted on the mounting shaft 3 and is used for driving the cam 4 to restore, when the external pressing on the outer baffle 1 disappears, the restoring assembly drives the cam 4 to rotate reversely and restore to the original position, so as to reduce the deformation of the outer baffle 1 and prolong the service life of the bumper.
Preferred in this embodiment, resume the subassembly including torsional spring 8 and spliced pole 9, 8 suits of torsional spring are on installation axle 3, 8 both ends of torsional spring are connected with cam 4 through spliced pole 9 respectively, when outside baffle 1 receives the extrusion, outside baffle 1 takes place the extrusion to cam 4, cam 4 takes place the extrusion to elastic plate 2, elastic plate 2 takes place certain deformation, cam 4 takes place to rotate, and then make the width in deformation space 10 diminish, take place certain torsion and absorb some energy at cam pivoted in-process torsional spring 8, when the external extrusion to outside baffle 1 disappears, torsional spring 8 drives 4 reverse rotation of cam and resumes to the normal position and then reduce the deformation of outside baffle 1, increase its life.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. An automobile bumper made of foaming materials is characterized by comprising an outer side baffle (1), an elastic plate (2) and a plurality of rotating mechanisms, wherein:
the elastic plates (2) are arranged on the outer side baffle (1) in parallel, a deformation space (10) is formed between the elastic plates (2) and the outer side baffle (1), and the plurality of rotating mechanisms are arranged in the deformation space (10) along the length direction of the outer side baffle (1);
the rotating mechanism comprises an installation shaft (3) and a cam (4), the cam (4) is rotatably installed on the installation shaft (3), the cam (4) is abutted to the outer side baffle (1) and the elastic plate (2), and the cam (4) rotates relative to the installation shaft (3) when being extruded by the outer side baffle (1).
2. Vehicle bumper made of foamed material according to claim 1, characterised in that the cam (4) is oval.
3. The bumper made of foamed material according to claim 2, wherein when the outer panel (1) does not press the cam (4), a line connecting the cam (4) with a contact point of the outer panel (1) and the elastic plate (2) is a major axis of an ellipse.
4. The bumper made of foamed material according to claim 1, further comprising an inner baffle (5), wherein the inner baffle (5) is installed on the elastic plate (2) in parallel, the inner baffle (5) and the outer baffle (1) are respectively located on two sides of the elastic plate (2), and an elastic member (6) is arranged between the inner baffle (5) and the elastic plate (2).
5. Bumper for a vehicle made of expanded material according to claim 4 characterised in that the elastic element (6) is a spring.
6. The bumper made of foamed material according to claim 1, wherein a plurality of connecting plates (7) are installed in the deformation space (10), both sides of the connecting plates (7) are respectively connected with the outer side baffle (1) and the elastic plate (2), and the mounting shaft (3) is installed on the connecting plates (7).
7. Bumper for vehicle made of foamed material according to claim 6, characterised in that the web (7) is deformable in the width direction of the deformation space (10).
8. The bumper for vehicle made of foamed material according to claim 7, wherein the connecting plate (7) comprises a fixed plate (70), an elastic pressing member (71) and two sliding plates (72), the two sliding plates (72) are slidably mounted on both sides of the fixed plate (70), respectively, the elastic pressing member (71) is fixed between the sliding plates (72) and the fixed plate (70), and the two sliding plates (72) are connected to the outer side barrier (1) and the elastic plate (2), respectively.
9. The vehicle bumper made of foamed material according to claim 1, further comprising a restoring assembly mounted on the mounting shaft (3) and adapted to bring the cam (4) to a restoring position.
10. The bumper made of foamed material according to claim 9, wherein the restoring member comprises a torsion spring (8) and a connecting post (9), the torsion spring (8) is sleeved on the mounting shaft (3), and both ends of the torsion spring (8) are respectively connected with the cam (4) through the connecting post (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994275.4A CN110654334B (en) | 2019-10-18 | 2019-10-18 | Automobile bumper made of foaming material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994275.4A CN110654334B (en) | 2019-10-18 | 2019-10-18 | Automobile bumper made of foaming material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110654334A true CN110654334A (en) | 2020-01-07 |
| CN110654334B CN110654334B (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910994275.4A Active CN110654334B (en) | 2019-10-18 | 2019-10-18 | Automobile bumper made of foaming material |
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| Country | Link |
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| CN (1) | CN110654334B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11691581B1 (en) * | 2015-11-18 | 2023-07-04 | Apple Inc. | Extendable bumpers for vehicles |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3923117A (en) * | 1974-01-23 | 1975-12-02 | Marcos E Valdez | Bumper actuated ground engaging brake |
| US20140001781A1 (en) * | 2012-06-27 | 2014-01-02 | Michael Leking | Shock Absorbing Trailer Hitch Attachment |
| CN105109430A (en) * | 2015-08-27 | 2015-12-02 | 无锡伊佩克科技有限公司 | Anti-rubbing device for automobile |
| CN107176127A (en) * | 2017-07-07 | 2017-09-19 | 顾友民 | A kind of bumper |
| CN107215261A (en) * | 2017-05-31 | 2017-09-29 | 江苏格瑞德交通科技有限公司 | A kind of compartment way to play for time during caravan brake hard |
| CN108657094A (en) * | 2018-07-05 | 2018-10-16 | 广东纵行科技有限公司 | A kind of collision prevention device |
| CN209176632U (en) * | 2018-12-13 | 2019-07-30 | 深圳市粤奔汽车租赁有限公司 | A kind of bumper of anticollision damping |
| CN110154959A (en) * | 2019-05-21 | 2019-08-23 | 诸暨市奔宝弹簧有限公司 | A kind of new-energy automobile bumper with shock-absorbing function |
-
2019
- 2019-10-18 CN CN201910994275.4A patent/CN110654334B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3923117A (en) * | 1974-01-23 | 1975-12-02 | Marcos E Valdez | Bumper actuated ground engaging brake |
| US20140001781A1 (en) * | 2012-06-27 | 2014-01-02 | Michael Leking | Shock Absorbing Trailer Hitch Attachment |
| CN105109430A (en) * | 2015-08-27 | 2015-12-02 | 无锡伊佩克科技有限公司 | Anti-rubbing device for automobile |
| CN107215261A (en) * | 2017-05-31 | 2017-09-29 | 江苏格瑞德交通科技有限公司 | A kind of compartment way to play for time during caravan brake hard |
| CN107176127A (en) * | 2017-07-07 | 2017-09-19 | 顾友民 | A kind of bumper |
| CN108657094A (en) * | 2018-07-05 | 2018-10-16 | 广东纵行科技有限公司 | A kind of collision prevention device |
| CN209176632U (en) * | 2018-12-13 | 2019-07-30 | 深圳市粤奔汽车租赁有限公司 | A kind of bumper of anticollision damping |
| CN110154959A (en) * | 2019-05-21 | 2019-08-23 | 诸暨市奔宝弹簧有限公司 | A kind of new-energy automobile bumper with shock-absorbing function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11691581B1 (en) * | 2015-11-18 | 2023-07-04 | Apple Inc. | Extendable bumpers for vehicles |
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| Publication number | Publication date |
|---|---|
| CN110654334B (en) | 2023-05-23 |
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