CN1680147A

CN1680147A - bumper structure

Info

Publication number: CN1680147A
Application number: CN 200510063535
Authority: CN
Inventors: 尾角拓勉; 酒井治彦
Original assignee: Mitsubishi Motors Corp
Current assignee: Mitsubishi Motors Corp
Priority date: 2004-04-09
Filing date: 2005-04-08
Publication date: 2005-10-12
Anticipated expiration: 2025-04-08
Also published as: CN1332833C; JP2005297707A; JP4438487B2

Abstract

This invention provides a bumper structure which is easily positioned without forming any clearance between joining faces. A front bumper 1 is mounted on a front part of a vehicle, has an opening part 2 opened in a forward part of the vehicle, and comprises a bumper face 3, a face lower member 4 and a fastening member 5. The bumper face 3 constitutes an upper wall 2a and right and left side walls 2b, 2c of the opening part 2, and a pair of first joining faces 10 facing each other are provided on the side walls 2b, 2c. The face lower member 4 constitutes a lower wall 2d of the opening part, and a second joining face 20 to be joined with the first joining face 10 is provided on right and left ends 4a. The fastening member 5 fixes the first joining face 10 with the second joining face 20 in an abutting manner on each other.

Description

Bumper

Technical field

The present invention relates to a kind of its anterior design-calculated bumper that in the different same vehicle of specification, changes.

Background technology

In the front portion of vehicle, the front bumper that synthetic resin is made is installed.Front bumper can be the integral body that the method for utilizing injection mold to be shaped is made, also can be by die-cut, by a plurality of component set-ups.When front bumper adopts integrally formed the time,, the mounting structure (for example: with reference to Japanese documentation 1) of various car bodies aspect has been proposed in order to make the boundary portion between front bumper and fender guard or the car bonnet even.

And, when front bumper the time by a plurality of component set-up, for example, when if front bumper is divided into bumper/spoiler cover and cover lower member, at design aspect, in the discontinuous part of face shaping, connecting portion is arranged on the position of can't see from the outside, connect by mode such as chimeric or fastening.

Japanese documentation 1: the spy opens flat 9-109807 communique

But for integrally formed bumper/spoiler,, specification identical in vehicle if carry out the change of appearance design, even if just local different, also must prepare to be used to make the particular manufacturing craft of bumper/spoiler respectively not simultaneously.

And, in order to make it become independent parts bumper/spoiler cut apart and when carrying out partial alteration, even be that the center makes independent parts with around it, also can there be the problem that can't guarantee connecting portion intensity fully with the part of change.Therefore, great majority all are can't connecting portion be set on the position of hope and bumper/spoiler is divided into a plurality of parts.And if from the place ahead, it can not have the slit each other connecting portion, and, consider easy involutory aspect, assembling back, generally speaking,, extend a certain side so that it is overlapped in the inboard of its other party and forms connecting portion from the place ahead.

But, when forming a quadrate part spare,, do not produce the slit if from the place ahead in the coincidence of the inboard of other quadrate part spares.But, on the border of each parts, leave the concavo-convex trace of formation.And when the width of this trace became inhomogeneous because of the minor shifts in build-up tolerance, it was more eye-catching to seem on the contrary.

And, for every kind of same vehicle that driving engine output is not equal, specification is different, require to wish to change the peristome aperture area that is arranged on front bumper.At this moment, if along horizon cut-off rule is set, the parts of changing according to specification will become greatly, so, wish vertically to be provided with cut-off rule.So, front bumper be split into the top that constitutes peristome and both sides the bumper/spoiler cover, and constitute the cover lower member of the bottom of peristome, with respect to the bumper/spoiler cover, the cover lower member moved up and down and change aperture area.

But,, consequently, must prepare various bumper/spoiler covers and cover lower member according to the variation of aperture area if utilize parts when the inboard overlapping method of another parts is provided with connecting portion.And, because bumper/spoiler is the cross-directional length parts longer than vertical-direction length, therefore, scale error also be on the horizontal direction greatly.So vertically the error that connection lead produced of She Zhiing is also just more eye-catching.

Summary of the invention

The object of the present invention is to provide a kind of bumper, that is,, on joint face, do not produce the bumper that the slit just can be located easily when when cut-off rule being set along vertical direction changing the peristome aperture area that is arranged on the bumper/spoiler.

Prerequisite according to bumper of the present invention is, has to be installed in front part of vehicle and to the peristome of the front openings of vehicle.This bumper/spoiler comprises bumper/spoiler cover, cover lower member and secure component.The bumper/spoiler cover constitutes the upper wall of peristome and the sidewall of the left and right sides, and, on sidewall, be provided with a pair of first joint face respect to one another.The cover lower member constitutes the lower wall of peristome, and is provided with second joint face involutory with first joint face in the end of the left and right sides.Secure component contacts with each other first joint face and second joint face to be connected and is fixing.

And, change the aesthetic property of its outward appearance for the specification of correspondence vehicle of the same race, from the one group of parts that comprises a plurality of cover lower member that face shaping is different, select a cover lower member and be installed in the bumper/spoiler cover.In order to improve the accuracy of positioning of bumper/spoiler cover and cover lower member connecting portion, first joint face and second joint face are made of three contact surfaces normal being set for different angles respectively respectively at least, and contact with each other connection.At this moment, in order to improve Joint strenght, each contact surface of first joint face and second joint face is fixed with secure component respectively.And in order to improve operability, secure component constitutes to the bolt that the cover lower member connects by the integral nut plate of installing from the inboard of cover lower member with from the bumper/spoiler cover.

According to bumper of the present invention, because the formation of bumper/spoiler is that it is divided into bumper/spoiler cover and cover lower member, so, do not need to change the bumper/spoiler cover, and variform cover lower member just is installed, the bumper/spoiler of different impression just can be provided with minimal parts change.And, because constitute joint face, so can easily carry out the location of bumper/spoiler cover and cover lower member by at least three contact surfaces normal being set for different angles respectively.

Description of drawings

Fig. 1 is illustrated in the bumper according to one embodiment of the invention, from one group of exploded perspective view that selects when selecting a cover lower member the piece installing and being installed in the bumper/spoiler cover;

Fig. 2 represents to select the piece installing from one group and selects with the variform cover lower member of cover lower member of bumper shown in Figure 1 and exploded perspective view when being installed in the bumper/spoiler cover;

Fig. 3 represents the 4a among Fig. 1 is partly amplified the block diagram of represented cover lower member left end;

Fig. 4 is the block diagram that the 4a among Fig. 2 is partly amplified represented cover lower member left end;

Fig. 5 represents the block diagram of coupled condition on the car body right side of the bumper/spoiler cover of bumper shown in Figure 1 and cover lower member, has removed a part of cover lower member among this figure;

Fig. 6 is the exploded perspective view of the car body left side connecting portion of the bumper/spoiler cover of bumper shown in Figure 2 and cover lower member, and this figure is the state on the direction of seeing the place ahead from the inboard of bumper/spoiler cover near the car body central part; And

Fig. 7 is a cross sectional drawing of seeing optionally the face at the center by two bolts from the top, and these two bolts are meant two bolts of upside of the connecting portion of bumper/spoiler cover shown in Figure 6 and cover lower member.

The specific embodiment

Referring to figs. 1 through Fig. 7, be that example describes with the front bumper 1 that has according to the bumper of one embodiment of the invention.And that the direction of present embodiment and position are that the direct of travel F with vehicle is that benchmark defines is forward and backward, overall width direction, the right side, a left side.And, be that benchmark is distinguished inboard (interior direction), the outside (outer direction) with vehicle centre-line, and the direction of action of gravity is for direction (downside), the direction opposite with gravity direction are last direction (upside) down along direct of travel F.Because vehicle is a left-right symmetric, so, in the present embodiment, all use easy graphic part to describe, for the position of an opposite side, because be that left-right symmetric is configured, so omit explanation to it carried out with it.

Front bumper 1 is mounted in the parts of front part of vehicle, is provided with to be used for the peristome 2 of advancing and from the place ahead air being imported engine room energetically at vehicle.As shown in Figures 1 and 2, front bumper 1 comprises bumper/spoiler cover 3, cover lower member 4 and secure component 5.Bumper/spoiler cover 3 constitutes the upper wall 2a of peristome 2 and sidewall 2b, the 2c of the left and right sides.Cover lower member 4 constitutes the lower wall 2d of peristome.Each

sidewall

2b, 2c of bumper/spoiler cover 3 comprises a pair of first joint face 10 respect to one another.On the overall width direction of cover lower member 4, on the end of left and right sides 4a, 4b, form and the second involutory joint face 20 of first joint face 10.

First joint face 10 and second joint face 20 comprise three

contact surfaces

11,12,13 and 21,22,23 respectively.Set different angles respectively for being arranged at normal H1, H2, the H3 of each

contact surface

11,12,13 of first joint face 10 and normal H4, H5, the H6 that is arranged at each

contact surface

21,22,23 of second joint face 20, as shown in Figures 3 and 4.And, have identical relative angle relation between normal H1, the H2 in first joint face 10, the H3 and between normal H4, H5, the H6 in second joint face 20 mutually.Therefore, the interconnective contact surface 11 of first joint face and second joint face and 21 normal H1 and H4,

contact surface

12 and 22 normal H4 and H5, contact surface 13 all are identical with 23 normal H3 and each angle of H6.And, in order not make the slit that between first joint face 10 and second joint face 20, occurs too obvious, the narrower side of area in first joint face 10 and second joint face 20, that is, the periphery bight of second joint face 20 in the present embodiment is provided with recess 20a.

As shown in Figure 6, secure component 5 comprises nutplate 50 and

bolt

51,52,53, and this nutplate is installed from the inboard of cover lower member 4; This bolt is towards nutplate 50, and connects to cover lower member 4 from the inboard of front bumper 3.Nutplate 50 has the angle identical with second joint face 20 and is provided with contact surface 50a, 50b, the 50c of normal H4, H5, H6, and forms integral body.In order respectively each

contact surface

11,12,13 of first joint face 10 and each

contact surface

21,22,23 of second joint face 20 to be fixed, as Fig. 5, shown in Figure 6, be screwed into

bolt

51,52,53 along normal H1, H2, H3, H4, H5, the H6 of each

contact surface

11,12,13,21,22,23.And, with the direction setting of normal H1, the H2 of each

contact surface

11,12,13,21,22,23, H3, H4, H5, H6 in the inboard of the mounting tools of

bolt

51,52,53 and bumper/spoiler cover 3 and on every side on the hands-off direction of parts.

The as above front bumper 1 of Gou Chenging, first joint face 10 corresponding to bumper/spoiler cover 3 is set to second joint face 20 identical shaped.Like this, with respect to bumper/spoiler cover 3, if when the cover lower member 4 that has certain width on short transverse as shown in Figure 1 being installed or the narrow cover lower member 4 of the width of cover lower member 4 among as shown in Figure 2 ratio Fig. 1 being installed, can select cover lower member 4 to install according to specification.Promptly, from one group of parts of the cover lower member 4 that comprises different outer shape, select a cover lower member 4 to install, thus, on the different vehicle of the same race of specification, can change the aperture area of the peristome 2 of front bumper 1, perhaps can optionally change front bumper 1 single-piece impression, perhaps in the vehicle of the same race after the setting of overall height changes, can make the position on its corresponding chassis and change the position of cover lower member 4.

And, in this case, respectively three

contact surfaces

11,12,13 of first joint face are contacted with each other with three

contact surfaces

21,22,23 of second joint face and be connected, wherein normal H1, the H2 of three of first joint face contact surfaces, H3 are set to into different angles respectively, normal H4, the H5 of three contact surfaces of second joint face, H6 also are set to into different angles respectively, therefore, corresponding to bumper/spoiler cover 3, cover lower member 4 will inevitably be located on the position.That is, carry out the installation exercise of cover lower member 4 easily.And, because it is the coupled condition of first joint face 10 and second joint face 20 is located in a position,, also more attractive in appearance in appearance so the boundary portion 7 of first joint face 10 and second joint face 20 will be involutory uniformly.

And when contact surface was two, first joint face and second joint face can be along moving along the intersection line between the imaginary plane of these contact surfaces, and the relative position of bumper/spoiler cover 3 and cover lower member 4 is not to determine on a position.Thus, the number needs of contact surface is wanted more than three.

Symbol description

1 front bumper

2 peristomes

The 2a upper wall

2b, 2c sidewall

The 2d lower wall

3 bumper covers

4 cover lower member

The 4a end

50 nutplate (secure component)

51,52,53 bolts (secure component)

10 first joint faces

11,12,13 contact surfaces

20 second joint faces

21,22,23 contact surfaces

H1, H2, H3, H4, H5, H6 normal

Claims

1. A bumper structure, characterized in that:

The bumper structure having an opening that is attached to the front of the vehicle and opens toward the front of the vehicle includes:

The bumper cover constitutes the upper wall of the opening and the side walls on the left and right sides, and a pair of first connecting surfaces opposite to each other are provided on the side walls;

the lower part of the cover, which constitutes the lower wall of the opening, and is provided with a second connection surface at the ends of the left and right sides that coincides with the first connection surface; and

The fastening component is used to make the first connection surface and the second connection surface contact and connect with each other and fix them.

2. The bumper structure according to claim 1, characterized in that: one of the lower cover parts is selected from a group of a plurality of cover lower parts with different appearance shapes and installed on the bumper cover .

3. The bumper structure according to claim 1, wherein the first connection surface and the second connection surface are respectively composed of at least three contact surfaces whose normal lines are set at different angles, and Connect with each other.

4 . The bumper structure according to claim 3 , wherein the contact surfaces of the first connection surface and the second connection surface are respectively fixed by the fastening members.

5. The bumper structure according to claim 4, wherein the fastening part is composed of an integral nut plate and bolts, the nut plate is installed from the inner side of the lower part of the cover, and the bolts It penetrates from the bumper cover to the cover lower part.