阅读说明：本技术 缓冲元件以及缓冲元件在机动车的车身元件上的布置结构 (The arragement construction of buffer element and buffer element on the body component of motor vehicle ) 是由 M.伊波利蒂 T.T.默兹 J.温克勒 P.斯坦梅茨 S.戈道 C.克莱因 H.奥尔谢夫 于 2019-05-24 设计创作，主要内容包括：本发明涉及一种用于机动车的前盖或者后盖的缓冲元件以及这种缓冲元件在机动车的车身元件上的布置结构。按照本发明的用于机动车的前盖(10)或者后盖的缓冲元件(16)具有沿纵向延伸方向延伸的基体(30)、设置在基体的端部上的力承接面(32)和设置在与所述端部相间隔的区域中的、至少部分沿径向相对于基体向外延伸的固定区段(36),所述固定区段用于将基体固定在机动车的元件上,其中,在固定区段(36)和/或基体(30)上这样设计有至少一个额定断裂部位(42),使得所述额定断裂部位在超过极限负载时断裂并且允许基体(30)相对于固定区段(36)相对运动。在此,力承接面(32)设计为用作接触面(34)的力承接面(32),并且力承接面(32)和具有额定断裂部位(42)的固定区段(36)均与基体(30)一体件式地设计。(The present invention relates to a kind of arragement constructions for the front cover of motor vehicle or the buffer element of rear cover and this buffer element on the body component of motor vehicle.The buffer element (16) of front cover (10) or rear cover according to the invention for motor vehicle has the matrix (30) for extending longitudinally direction extension, the power continuing surface (32) that is arranged on the end of matrix and be arranged in in the region separately of the end, at least partly radially relative to the outwardly extending fixing section of matrix (36), the fixing section is used to for matrix being fixed on the element of motor vehicle, wherein, design has at least one specified fracture location (42) in this way in fixing section (36) and/or matrix (30), so that the specified fracture location is broken when overstepping the extreme limit and loading and allows matrix (30) relative to fixing section (36) relative motion.Herein, power continuing surface (32) is designed for use as the power continuing surface (32) of contact surface (34), and power continuing surface (32) and the fixing section (36) with specified fracture location (42) are designed with matrix (30) one-piece.)

1. a kind of buffer element of front cover (10) or rear cover for motor vehicle, the buffer element has the side of extending longitudinally To extension matrix (30), be arranged power continuing surface (32) on the end of described matrix (30) and with the end at intervals It is being arranged, at least partly radially relative to matrix (30) outwardly extending fixing section (36), the fixing section is used for will Described matrix (30) is fixed on the body component of motor vehicle, wherein in the fixing section (36) and/or described matrix (30) Upper design in this way has at least one specified fracture location (42) so that the specified fracture location overstep the extreme limit load when fracture And allow described matrix (30) relative to the fixing section (36) relative motion,

It is characterized in that,

The power continuing surface (32) is designed for use as the power continuing surface (32) of contact surface (34), and power continuing surface (32) and has The fixing section (36) of specified fracture location (42) is designed with matrix (30) one-piece.

2. by the buffer element as described in the preamble of claim 1 or claim 1, which is characterized in that the fixed area Section (36), which has, to be radially arranged with described matrix (30) fixed ring (38) separately and as specified fracture location (42) The lath (40) for thering is at least one to extend between the fixed ring (38) and matrix (30).

3. buffer element as described in claim 2, which is characterized in that the fixed ring (38) and described at least one is specified disconnected Position (42) is split to design with described matrix (30) one-piece.

4. buffer element as described in one of preceding claims, which is characterized in that at least at one on described matrix (30) The guide rib (44) for having at least one to extend longitudinally is designed in point length.

5. buffer element as described in one of preceding claims, which is characterized in that designing on described matrix (30) has at least The clamping element (48) of one elasticity design.

6. by the buffer element described in preceding claims with fixed ring (38), which is characterized in that described matrix (30) edge There is circular cross-sectional geometry transverse to the direction of the longitudinal extension.

7. buffer element as described in one of preceding claims, which is characterized in that on described matrix (30) or described Design extends longitudinally direction torsion stopping element (50) outstanding in fixing section (36).

8. buffer element as described in one of preceding claims, which is characterized in that described matrix (30) is made of plastics.

9. buffer element as described in one of preceding claims, which is characterized in that described matrix (30) extends longitudinally Length is equivalent to more times of the length of the fixed ring (38) extended in the same direction.

10. a kind of arrangement of buffer element as described in one of preceding claims (16) on the body component (20) of motor vehicle Structure, the arragement construction have permanent opening (28), wherein the buffer element (16) has clamping element (48) and fixed Ring (38), which is characterized in that the clamping element (48) and the fixed ring (38) are formed in the fixation extended on fixed height f Region, the fixed area is adapted to the material thickness of the wall around permanent opening (28) of body component in this way, so that described Wall is surrounded by the clamping element (48) and fixed ring (38) and buffer element (16) is thus relative to the anti-torsion of body component Steadily it is held.

Technical field

The present invention relates to a kind of for the front cover of motor vehicle or the buffer element of rear cover and this buffer element in machine Arragement construction on the body component of motor-car.

Background technique

A kind of buffer element as known to 10 2,010 026 725 A1 of DE, more element types by buffer body, outer sleeve, Inner sleeve, bottom parts and lock ring are constituted and are installed with needing to expend.Optionally, it is relatively also described with the buffer element Brake hoop and flake structure.Internal, middle part and external specified fracture is provided on the bottom parts of buffer element Position, when power axially acts on buffer element (as it occurs in pedestrian impact), the specified fracture location It should in turn be broken, wherein with each fracture, a subelement of buffer element is slipped into bottom parts.

A kind of backstop buffer of the front cover for motor vehicle, is defining as known to 10 2,005 012 773 A1 of DE Limit load more than (as in pedestrian impact occur as) be plastically deformed along the vertical direction.The backstop buffer is same It is configured to more element types and mainly includes the buffer element and receiving portion with threaded rod, buffer element is screwed to the appearance It receives in portion.In order to be broken receiving portion at least partly when overstepping the extreme limit and loading, so that buffer element can be relative to front cover Backstop that is mobile and being no longer serve as the front cover closed, designs specified fracture location in the flange shape section of receiving portion.Herein Regulation, backstop buffer are fixed on the front cover of transport facility.It does not disclose and the coefficient buffering of backstop buffer Element.

It is the shortcomings that buffer element as known to aforementioned patent literature, these buffer elements are due to more components and required Installment work and bring higher manufacture, logistics and installation cost.

Summary of the invention

Technical problem to be solved by the present invention lies in provide the cushioning element of a kind of front cover for motor vehicle or rear cover Part, the buffer element realize the pedestrian protecting of high quality and still are able to simple and inexpensively manufacture.

The technical problem is passed through a kind of for the front cover of motor vehicle or the buffer element of rear cover and this by the present invention Arragement construction of the buffer element on the body component of motor vehicle solves.

It is according to the invention to extend for the front cover of motor vehicle or the buffer element of rear cover with direction is extended longitudinally Matrix, the power continuing surface that is arranged on the end of described matrix and be arranged in it is in the region separately of the end, extremely For small part radially relative to the outwardly extending fixing section of matrix, the fixing section is motor-driven for described matrix to be fixed on On the element of vehicle, wherein design has at least one specified fracture location in this way in the fixing section and/or described matrix, So that the specified fracture location is broken when overstepping the extreme limit and loading and allows described matrix relative to the fixing section phase To movement.Here, the power continuing surface is designed for use as the power continuing surface of contact surface, and power continuing surface and there is specified fracture The fixing section at position is designed with matrix one-piece.Thus, it is possible to simple and costs for buffer element according to the invention It inexpensively manufactures, i.e., is especially fabricated to plastic part.This is primarily adapted for use in this buffer element for needing larger number of packages and large quantities of The case where amount ground manufactures plastic part by plastic injection molding process.Individual installation process is this saved, and also simplifies object Stream and maintenance, because buffer element can be loaded into simply as entirety and be re-used as whole be replaced.

In another actual form of implementation, the fixing section has the radially fixation with described matrix separately Ring, and specified fracture location is provided at least one lath extended between the fixed ring and matrix.This In the case of, fixed ring may not only be advantageously used for fixing element, and when suitably arranging specified fracture location, fixed ring Guide ring can also be used as in the event of failure, by the guide ring prevent specified fracture location fail after loosen, It reverses and thus it can be prevented that thus, it is possible to the matrix relative to fixed ring relative motion and unlimitedly penetrate fixed ring.

It also indicates that associatedly, the buffer element of a kind of front cover for motor vehicle or rear cover is also claimed, With the matrix for extending longitudinally direction extension, the power continuing surface that is arranged on the end of described matrix and with the end phase It is being positioned apart from, at least partly radially relative to the outwardly extending fixing section of matrix, the fixing section is used for institute Matrix is stated to be fixed on the body component of motor vehicle, wherein in the fixing section and/or described matrix in this way design have to A few specified fracture location, so that the specified fracture location is broken when overstepping the extreme limit and loading and allows described matrix phase For the fixing section relative motion, condition is that the fixing section has the radially fixation with described matrix separately Ring, and specified fracture location is provided at least one lath extended between the fixed ring and matrix.This In the case of do not necessarily require, the power continuing surface be designed for use as the power continuing surface of contact surface and power continuing surface and have volume The fixing section for determining fracture location is designed with matrix one-piece.Therefore it is also possible that in the region of power continuing surface In be additionally arranged individual element, such as form is rubber bumper, so as in the contact surface region of buffer element in court Damping is locally improved in the end of the bearing element of front cover or rear cover, and thus improves the runnability and drop of acoustics Low component vibration.This is similarly applicable for fixed area, especially in the contact area of the body component of motor vehicle, it is i.e. solid Determine in the contact area with lower curtate of section, the section is enduringly contacted with other elements or used according to the rules It may be in and contact with other elements when motor vehicle, such as temporarily go out in poor section or due to runway out-of-flatness When now strong body vibrations.

In another actual form of implementation of buffer element according to the invention, the fixed ring and described at least one A specified fracture location is designed with described matrix one-piece.To this referring again to it is associated, especially in integral piece When being fabricated to plastic part, the advantages of having illustrated before likes.

If at least designing the guide rib for thering is at least one to extend longitudinally over part of their length on the matrix, The further advantage of the installation about buffer element according to the invention may be implemented.It is preferred that multiple guide ribs are distributed in matrix circumferential direction It designs in parallel to each other respectively Shangdi.Guide rib may be advantageously used with so that matrix in the fixed ring lower zone it is outer Portion's geometric dimension with the profile for the opening that buffer element is fixed therein should be adapted to.It is preferably provided with along the longitudinal direction of buffer element The rib of extension, the external dimensions of the rib are adapted to the Internal periphery of corresponding opening or inside dimension.This guide rib is preferably only Extend in a part of the length of buffer element according to the invention, the part from fixed ring towards and power continuing surface phase The direction of anti-end orients.

Any fixing element can be designed in buffer element, especially on its matrix in principle, so as to by matrix and/or solid The body component for determining section relative to motor vehicle is fixed.It is preferred that design has the clamping of at least one elasticity design on the matrix Element, the clamping element realize the simple clamping lock of the body component of buffer element and motor vehicle.It is preferred that according to the present invention Buffer element matrix periphery on distribution ground design two or more clamping element, wherein it is preferred that only by two A clamping element separately designs on the opposite side of matrix.

In another actual form of implementation, the matrix of buffer element according to the invention prolongs transverse to the longitudinal direction The direction for stretching direction has circular cross-sectional geometry.The circular cross-sectional geometry be especially appreciated that for it is round, The molding circular cross sectional shape of oval or other way does not include the cross section shape of discontinuity mathematically especially Shape, that is, only curve is without seamed edge.This construction this have the advantage that, especially at least one or it is multiple specified disconnected It splits after the failure of position and following matrix is fixed after ring penetrates, can reduce or almost avoid buffer element askew The risk that oblique risk and matrix resulting from are blocked relative to fixed ring.

In another actual form of implementation of buffer element according to the invention, on the matrix or described Design extends longitudinally direction torsion stopping element outstanding in fixing section.It can especially refer to corresponding recessed herein It falls into, the recess and the recess of the complementary design in the opening of body component or the raised collective effect of complementary design.This tool Have the advantage that, especially can be effectively avoided in the buffer element with round or oval cross-section geometry according to The loading of the torsion of buffer element of the invention.This is especially important in a case where, i.e., element is not symmetric design And the mistake of fault orientation or the power continuing surface as contact surface that power continuing surface is therefore generated in the loading of torsion is fixed To.

As already mentioned, the matrix of buffer element according to the invention is preferably made from plastic.This is especially in integral piece Fixing section and power continuing surface are equally applicable to when manufacturing buffer element according to the invention likes.

It is preferably in geometric aspects, in buffer element according to the invention, the length of described matrix extended longitudinally Degree is equivalent to more times of the length of the fixed ring extended in the same direction.In this case, especially when described matrix from Fixed ring is set out when mainly extending longitudinally towards the direction of power continuing surface, can provide biggish deformation path by matrix, especially It is used to be undertaken on the power in pedestrian impact situation.

The present invention also relates to a kind of arrangement knot of especially foregoing buffer element on the body component of motor vehicle Structure, the arragement construction have permanent opening, wherein the buffer element has clamping element and fixed ring, wherein the folder Tight element and the fixed ring are formed in the fixed area extended on fixed height F, and the fixed area is in this way and body component The wall around permanent opening material thickness adaptation so that the wall is surrounded and is buffered by the clamping element and fixed ring Element relative to the anti-torsional stabilizer of body component (drehstabil) is held.Thus, it is possible to simple and low-cost side Formula realizes simple installation and at the same time realizing reliable arrangement of the buffer element according to the invention on motor vehicle.Appropriate In design, installation can be especially accomplished by the following way, i.e., in the permanent opening of the compresses lower section insertion body component of matrix, Until at least one clamping element, preferably two clamping elements or more clamping elements and permanent opening clamping lock.Exist thus It is sufficient that in construction appropriate, buffer element according to the invention is introduced with sufficiently large power along its longitudinal extension solid In fixed opening, until the clamping element or multiple clamping elements flexibly deviate and with permanent opening clamping lock.Vehicle body member Part especially indicates to be different from front cover perhaps their supports as front cover or rear cover of the body component of rear cover, for instance in machine The front compartment of the motor-car perhaps support element in the region of trunk such as lock frame or crossbeam.

Detailed description of the invention

Other actual forms of implementation of the invention are described below in conjunction with attached drawing.In the accompanying drawings:

Fig. 1 shows the front cover of motor vehicle with view from below, is arranged in the crossbeam and two for being arranged in front side Supporting member on crossbeam；

Fig. 2 with the solid of top to illustrate the part of the front compartment of motor vehicle, front cover shown in FIG. 1 obliquely from the front It may be mounted on the front compartment, there is buffer element corresponding with supporting member, but before being not explicitly shown shown in Fig. 1 Lid；

There are two the lock framves of buffer element to merely illustrate tool with the perspective view of top obliquely from the front by Fig. 3；

Fig. 4 shows the part of front cover, and the front cover has the supporting member being disposed thereon, and the supporting member is preceding It covers in the state closed and is placed on buffer element；

Fig. 5 shows the example view of the failure properties of the buffer element in Fig. 4；

Fig. 6 illustrates the first form of implementation of buffer element according to the invention with solid；

Fig. 7 is shown ... in a side view the buffer element in Fig. 6；

Fig. 8 is to show the buffer element in Fig. 6 and 7 from the view of top；

Fig. 9 shows the second form of implementation of buffer element according to the invention with view from below；

Figure 10 is to show the buffer element in Fig. 9 from the view of top；

Figure 11 illustrates the buffer element in Fig. 9 and 10 with perspective side；

Figure 12 shows lock frame, the lock frame have for buffer element according to the invention recess and

Figure 13 shows the region indicated in Figure 12 with XIII for having dimply lock frame with the view amplified.

Specific embodiment

Fig. 1 shows the front cover 10 of not shown motor vehicle with view from below.Motor vehicle is longitudinal in Fig. 1 and all It is indicated in other attached drawings with x, motor vehicle is laterally indicated with y and motor vehicle short transverse is indicated with z.Accordingly, similar to Term motor vehicle longitudinal direction, motor vehicle transverse direction and motor vehicle short transverse, also use the direction term x, the direction y and the direction z.

Such as it can be seen in FIG. 1 that being disposed with crossbeam 12 on front side of the motor vehicle of front cover 10, and crossbeam and front cover 10 are solid Fixed connection.It can be seen that two supporting members 14 in the outside of crossbeam 12.The supporting member 14 and two other bearings Element 14 and 16 collective effect of buffer element designed according to this invention, before described two others supporting members are set up directly on It laterally (direction y) is observed further backward and further out on lid 10 and along motor vehicle longitudinal (direction x) and motor vehicle It is arranged on front cover 10, position of the buffer element 16 on the front compartment 18 of motor vehicle can be found out in Fig. 2.

It is further arranged in the buffer element 16 on front side of motor vehicle to be arranged on lock frame 20, the lock frame is in front compartment 18 It is arranged in region after bumper beam 22.

Fig. 3 show in enlarged view lock frame 20, it is described lock frame tool there are two be arranged on front side of motor vehicle in Fig. 2 Shown in buffer element 16.In fig. 3 it can be seen that by 24 structure of molded part of metal in lock 20 form of implementation shown in of frame At the molded part includes the plastic components 26 of injection.It is provided with permanent opening 28 on the plastic components 26 of lock frame 20, it is described Permanent opening 28 can be apparent from Figure 12.Buffer element 16 is respectively charged into each permanent opening 28, wherein is being schemed Arragement construction of the buffer element 16 relative to lock frame 20 and the front cover 10 with supporting member 14 is clear that in 4 and 5. Before elaborating the arragement construction, first according to Fig. 6 to 8 illustrate buffer element 16 according to the invention it is some geometrically Details.

As being especially clear that in figs. 6 and 7, buffer element 16 according to the invention includes prolonging along longitudinal direction Stretch direction L extension matrix 30, be arranged in matrix 30 in figs. 6 and 7 in upside end on, herein be used as and bearing The power continuing surface 32 of the contact surface 34 of element 14 and radially relative to the outwardly extending fixing section 36 of matrix 30, the fixation Section is used to for matrix 30 being fixed on body component, and the body component is, for example, that frame 22 is locked shown in Fig. 2 to 5.Gu Determine section 36 be designed as herein circular fixed ring 38 and by four distribution in the circumferential be designed as specified fracture location 42 lath 40 is connect with matrix 30.

As can be seen that in Fig. 6 to 8, extend downwardly from fixed ring 38, edge is also devised on matrix 30 The guide rib 44 of the portrait orientation of matrix 30.The guide rib 44 radially extends outwardly from matrix 30.The guide rib is used for Make matrix 30 relative in 28 pairs of permanent opening when installing buffer element 16, namely when being inserted into permanent opening 28 and Thus improve orientation of the buffer element 16 relative to lock frame 20 or other body components of motor vehicle.

As being clear that in Fig. 6 and 8, it is r's that the direction L perpendicular to the longitudinally-extending of matrix 30, which has radius, Circular cross-sectional geometry.

In the region below fixed ring 38, on the opposite side of matrix 30 design there are two clamping element 48, in Fig. 6 and Respectively it can be seen that one of clamping element 48 in 7.

Torsion stopping element 50 extends downwardly along longitudinal direction from fixed ring 38, the torsion stopping element and the conduct in Figure 13 52 collective effect of recess shown in the part of permanent opening 28.Thus ensure that buffer element 16 is only properly oriented to and installs In permanent opening 28 and reliably avoid wrong arrangement.

Fig. 9 to 11 shows another form of implementation of buffer element 16 according to the invention, wherein for identical or at least The identical element of function has used and appended drawing reference identical in other attached drawings.Another implementation shown in Fig. 9 to 11 The main distinction of form is that matrix 30 has oval cross-sectional geometry oval in other words.In addition, being designed as specified The lath 40 of fracture location 42 is not evenly distributed in circumferential direction, but specified fracture location 42 is arranged in respectively oval In the region of the long side of matrix 30.

It is furthermore pointed out that in the form of implementation shown in Fig. 9 to 11 of buffer element 16, four guide ribs 44 be distributed generally evenly in week be arranged upward.Guide rib 44 is equipped with chamfered edge 46 in lower area, and the chamfered edge is used for Import matrix 30 more easily in permanent opening 28.

As can be seen in Figure 4, supporting member 14 is put when according to the rules using motor vehicle when front cover 10 is closed It sets on the contact surface 34 of buffer element 16.

If the direction from top towards buffer element 16 acts on the raising of the power on front cover 10 such as in pedestrian impact, Then specified fracture location 42 is designed as in buffer element 16 according to the invention so that specified fracture location failure and The matrix 30 of buffer element 16 can be relative to 38 relative motion of fixed ring.Matrix 30 can be passed down through as shown in Figure 5 immediately Fixed ring 38 declines (referring to the position shown in dotted line of matrix 30 ').Thus form biggish deformation path, the deformation Path is conducive to absorb energy and reduces the load to the head of pedestrian.

Present invention is particularly suitable for the arragement construction with front cover, the front design is three element types or more element types And have in the region on front side of motor vehicle as the reinforcing element of individual component, especially crossbeam, to improve front cover 10 Rigidity.

About the overall height H of buffer element 16, reference 20 between 80mm, especially 20 to the preferred height between 60mm Degree.The particularly preferred height H for being about 30mm ± 5mm and about 40mm ± 5mm.In practice it is proved that by this two A size can realize buffer element 16 for the almost all of motor vehicle type of vehicle manufacturers.In power continuing surface In region, especially when the power continuing surface is designed as contact surface, the material thickness of buffer element 16 according to the invention is extremely Few 2mm, preferably at least 2.5mm and particularly preferably at least 3mm.In rest part, as material thickness it is preferable to use 1mm extremely Value between 3mm is particularly preferably less than the value of 2mm.For example, material thickness can be 1.8mm in all other region.In Preferred lesser material thickness, especially 1.5mm or smaller value in the region of specified fracture location.

As the size of power continuing surface, especially when the power continuing surface is used as contact surface, 20 × 20mm and 60 × 60mm Between value be particularly preferred.Herein it has proved that especially the value of 30 × 50mm is especially appropriate.

The feature of present invention disclosed in this specification, attached drawing and claim is individually or in any combination With in different forms of implementation realize the present invention be important.The present invention can within the scope of the claims and examine It is changed in the case where considering those skilled in the art's cognition.

List of numerals

10 front covers

12 crossbeams

14 supporting members

16 buffer elements

18 front compartments

20 lock framves

22 bumper beams

24 molded parts

26 plastic components

28 permanent openings

30 matrixes

32 power continuing surfaces

34 contact surfaces

36 fixing sections

38 fixed rings

40 laths

42 specified fracture locations

44 guide ribs

46 chamfered edges

48 clamping elements

50 torsion stopping elements

52 recesses