JP3974603B2 - Bumper structure for vehicles - Google Patents

Description

  The present invention relates to a vehicle bumper structure, and in particular, includes a bumper beam extending in a vehicle width direction below a tailgate at the rear of a vehicle body, the bumper beam including a buffer member, and the bumper beam and the buffer member covered with a bumper face. The present invention relates to a vehicle bumper structure.

As a vehicular bumper structure, a rear bumper beam extending in the vehicle width direction is provided below the tailgate at the rear of the vehicle body, an energy absorber (buffer member) is provided at the rear of the rear bumper beam, and the rear bumper beam and the buffer member are rear bumpers. What was covered with the face is known (for example, refer patent document 1).
JP 2000-127872 A

The bumper structure for a vehicle of Patent Document 1 absorbs collision energy by crushing a buffer member and deforming a rear bumper face when the vehicle collides with a wall or the like.
This vehicular bumper structure is applied to a vehicle with a tailgate provided above the rear bumper face, and is configured so that when the rear bumper face is deformed, the tailgate is not damaged at the upper part of the deformed rear bumper face. ing.

By the way, some bumper structures for vehicles are configured to absorb a small collision energy such as at the time of a low-speed (about 8 km / Hr or less) collision.
In addition, some bumper structures for vehicles are provided with bumper steps for the bumper steps above the rear bumper face.
Next, an example of a vehicle bumper structure that can absorb a small collision energy at the time of a low-speed (about 8 km / Hr or less) collision and has a bumper step will be described.

FIG. 9 is a sectional view showing a conventional vehicle bumper structure.
The bumper structure 150 at the rear of the vehicle body includes a rear bumper beam 153 that extends in the vehicle width direction below the tail gate 152 of the rear body 151 of the vehicle body, and includes a buffer member 155 at a rear portion 154 of the rear bumper beam 153. An absorber 156 is provided at each upper part of the bumper beam 153, the rear bumper beam 153, the buffer member 155, and the absorber 156 are covered with the rear bumper face 157, the upper part 158 of the rear bumper face 157, and behind the tailgate 152. A bumper step 159 for steps is provided.

According to the bumper structure 150 at the rear of the vehicle body, the upper end 156a of the absorber 156 is close to or in contact with the upper portion 158 of the rear bumper face 157 by providing the absorber 156 on the upper portions of the buffer member 155 and the rear bumper beam 153. ing.
In addition, a bumper step 159 for the step is provided on the upper part 158 of the rear bumper face 157.

For this reason, when the vehicle collides with the wall portion 160 or the like at a low speed, the buffer member 155 is crushed and the upper portion 158 of the rear bumper face 157 tends to be bent.
Here, in order for the upper part 158 of the rear bumper face 157 to bend, a space is required below the upper part 158.

However, an absorber 156 is provided below the upper part 158 of the rear bumper face 157, and a space for bending the upper part 158 of the rear bumper face 157 cannot be secured.
In addition, since the bumper step 159 is provided on the upper part 158 of the rear bumper face 157, it is more difficult to bend the upper part 158 of the rear bumper face 157.

As a countermeasure against this, a method of forming a stepped portion 161 in the vicinity of the front end portion 158a of the upper portion 158 of the rear bumper face 157 is known.
A step portion 161 is formed on the upper portion 158 of the rear bumper face 157 so that the step portion 161 can be easily deformed. Thereby, at the time of a low-speed collision, the front end portion 158a of the upper portion 158 comes into contact with the rear end portion 151a of the vehicle body rear portion 151, and the stepped portion 161 can be deformed.

However, if the stepped portion 161 is formed on the upper portion 158 of the rear bumper face 157, the upper portion 158 of the rear bumper face 157, that is, the apron surface of the rear bumper face 157 cannot be flattened.
For this reason, the design of the rear bumper face 157 is restricted, which hinders improvement in appearance.

  An object of the present invention is to provide a vehicle bumper structure that can suitably deform a bumper face during a low-speed collision and that is not restricted by the design of the bumper face.

  The invention according to claim 1 includes a bumper beam extending in the vehicle width direction below the tailgate at the rear of the vehicle body, the bumper beam including a buffer member, and the bumper beam and the buffer member covered with a bumper face. The flange extends upward from the upper surface of the bumper beam, and an absorber extending in the vehicle width direction is placed on the upper edge of the flange, and both ends of the absorber are attached to the bumper beam. Cutout portions are formed, and between the cutout portions, an upper end portion of the absorber is provided with a protruding portion that protrudes rearward of the buffer member to the rear end of the buffer member.

In the unlikely event that the vehicle collides with a wall or the like at a low speed, the buffer member is crushed and the protrusion provided at the upper end of the absorber is pushed out toward the front of the vehicle body. The absorber is pressed forward of the vehicle body, and the notch is deformed.
The absorber moves forward of the vehicle body and falls from the upper edge of the flange to the upper side of the bumper beam, so that the absorber moves away from the upper part of the bumper face. Therefore, a relatively large space is formed below the upper part of the bumper face.

By forming a relatively large space below the upper part of the bumper face, a space for deforming the upper part of the bumper face is secured.
By utilizing this interval, the upper part of the bumper face can be deformed to suitably deform the bumper face.
Thereby, it is not necessary to form the step part for promoting a deformation | transformation in the upper front end part of a bumper face.

  Claim 2 is characterized in that a bumper step is provided for the bumper step so that the front side is removed from the deformed upper part when the upper part is deformed at the upper part of the bumper face and behind the tailgate. To do.

  A bumper step was provided above the bumper face and behind the tailgate. By configuring the bumper step so that the front side of the bumper step is removed from the upper part when the upper part of the bumper face is deformed, there is no possibility that the bumper step prevents the upper part of the bumper face from being deformed.

  In the invention according to claim 1, an interval is formed in the case of a low-speed collision, and the bumper face is suitably deformed by using this interval, so that a step portion that promotes the deformation of the bumper face can be eliminated, and the bumper There is an advantage that the degree of freedom in the design of the face can be increased.

  In the invention according to claim 2, the bumper step can be suitably deformed by configuring the bumper step so that the front side of the bumper step is detached from the upper part when the upper part of the bumper face is deformed. There are advantages.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. “Front”, “Rear”, “Left”, “Right”, “Up”, “Down” follow the direction seen from the driver, Fr is front, Rr is rear, L is left, R is right Indicates.

FIG. 1 is a perspective view showing a vehicle having a vehicle bumper structure according to the present invention.
The vehicle 10 includes a tailgate 13 at the rear portion 12 of the vehicle body 11, and includes a vehicle bumper structure 20 below the tailgate 13 and behind the left and right rear wheels 15 and 15.
The tailgate 13 is swingably supported between a closed position and an open position with the hinge as a fulcrum by rotatably attaching an upper end portion 14 to a rear portion 12 of the vehicle body 11 via a hinge (not shown). Yes.
The closed position is a position where the passenger compartment (not shown) is closed by the tailgate 13, and the open position is a position where the passenger compartment is opened.
Hereinafter, the vehicle bumper structure 20 will be described in detail.

FIG. 2 is an exploded perspective view showing a vehicle bumper structure according to the present invention.
The vehicle bumper structure 20 includes a rear bumper beam (bumper beam) 21 that extends in the vehicle width direction below a tailgate 13 (see FIG. 1) of the rear body 12 of the vehicle body. The rear bumper beam 21 includes an absorber 22. The bumper beam 21 and the absorber 22 are covered with a rear bumper face (bumper face) 23, and a bumper step 24 is provided on the rear bumper face 23.

  The rear bumper beam 21 has left and right end portions 27 and 28 of the rear bumper beam 21 attached to the rear end portion 26a of the body frame 26, and mounting brackets 29 and 29, respectively. It is a curved reinforcing member provided with 31 and 32.

The absorber 22 is provided with left and right locking pins 37 and 38 (see FIG. 3) projecting forward of the vehicle body at the left and right support ends 34 and 35, respectively. The member is inserted into the insertion holes 31 and 32 as indicated by an arrow a and placed on the rear bumper beam 21 as indicated by an arrow b.
The absorber 22 is a deformable member formed in a substantially curved shape with a foaming agent, and is a member capable of absorbing collision energy.

The rear bumper face 23 is a resin member formed in a substantially U shape, and includes left and right side portions 41, 42 extending from the rear of the left and right rear wheels 15, 15 (see FIG. 1) to the rear of the vehicle body. A face main body 43 is provided between rear end portions of the left and right side portions 41 and 42.
The face main body 43 includes a mounting portion 45 for mounting the bumper step 24 on the upper portion 44. The mounting portion 45 has clips 46, 47,... And front insertion pieces 48 of the bumper step 24 (FIGS. 5 and 6). .., And insertion holes 53... Are inserted.

The bumper step 24 is a band-shaped member extending in the vehicle width direction, and is a member used as a step for a user to put his / her foot on by placing it on the placement portion 45 of the face main body 43 as indicated by an arrow c. .
The bumper step 24 has recesses 25 on the upper surface.

FIG. 3 is an exploded perspective view showing the main part of the vehicle bumper structure according to the present invention, and FIG. 4 is a perspective view showing the main part of the vehicle bumper structure according to the present invention.
The rear bumper beam 21 is attached to the rear end portion 26a of the vehicle body frame 26 through left and right end portions 55a and 55b of the beam body 55 via mounting brackets 29 and 29, and a gusset 56 is attached to the front center 55c of the beam body 55. And a beam plate 58 attached along the rear portion 55d of the beam body 55 (see FIGS. 5 and 6).

  The beam body 55 includes upper and lower surface portions 61a and 62a, an upper projecting piece 61b projecting upward from the upper surface portion (upper surface) 61a, and projecting downward from the lower surface portion 62a (see FIGS. 5 and 6). An underhanging piece 62b (see FIGS. 5 and 6) is provided.

The upper side 58a of the beam plate 58 is overlaid on the overhanging piece 61b, and these members 61b and 58a are joined by spot welding.
The lower side 58b of the beam plate 58 is superposed on the lower projecting piece 62b, and these members 62b and 58b are joined by spot welding.

A portion where the upper projecting piece 61b and the upper side 58a of the beam plate 58 are joined is defined as an upper flange (flange) 61 projecting upward.
A portion where the lower projecting piece 61b and the lower side 58b of the beam plate 58 are joined is defined as a lower flange 62 projecting downward.

The beam plate 58 includes a buffer member 65 that protrudes toward the rear of the vehicle body at a central portion 58c (see also FIG. 6).
The buffer members 65 are two (upper and lower) hollow projections 66 and 67 provided on the upper and lower sides of the beam plate 58.

The upper hollow protrusion 66 and the lower hollow protrusion 67 are formed in a so-called hat-shaped cross section (a cross section of a hat having a rim around).
The upper hollow protrusion 66 on the upper side has a protrusion height H1 (see also FIG. 6), and the lower hollow protrusion 67 on the lower side has a protrusion height H2 on the rear side of the vehicle body (see FIG. 6). is there.

  The absorber 22 includes an absorber body 36 extending in a curved shape along the upper edge 61c of the upper flange 61 provided in the rear bumper beam 21, and left and right support end portions 34, 35 formed integrally with the left and right ends of the absorber body 36. With.

  The absorber main body 36 has left and right end portions 36a and 36b (that is, in the vicinity of the support end portions 34 and 35 of the absorber 22) and left and right cutout portions 71 and 72 at the front side of the vehicle body, respectively. Of the portions 36a and 36b, the width W of the portion where the notches 71 and 72 are formed is reduced.

The absorber main body 36 is a member having a substantially rectangular cross section, and includes a plurality (four) of protrusions 73 at a predetermined interval from the upper end portion 36c.
The projecting portions 73 are projecting pieces that project rearward to the rear end of the buffer member 65, that is, to the rear end 67a (the rear end of the buffer member) of the lower hollow projection 67 (see FIG. 6).

  The left and right support end portions 34 and 35 are provided with fitting grooves 75 and 76 on the bottom portions 34a and 35b (see FIG. 5), and wall surfaces 77 and 78 continuous with the side walls 75a and 76a of the fitting grooves 75 and 76, respectively. (See FIG. 5) The left and right locking pins 37, 38 (see also FIG. 5) projecting forward of the vehicle are provided.

  According to the absorber 22, the left and right locking pins 37, 38 are inserted into the left and right insertion holes 31, 32, respectively, as indicated by the arrow a, and the left and right fitting grooves 75, 76 are formed on the upper edge 61 c of the upper flange 61. By fitting as shown by an arrow d (see also FIG. 5) and placing the bottom 36d (see also FIG. 6) of the absorber body 36 on the upper edge 61c of the upper flange 61 as shown by an arrow e, the rear bumper beam 21 is mounted. Can be attached.

By placing the absorber 22 on the upper flange 61 of the rear bumper beam 21, the absorber 22 is disposed between the upper flange 61 and the mounting portion 45 (see FIGS. 5 and 6) of the rear bumper face 23.
Thereby, the mounting portion 45 of the rear bumper face 23 can be supported by the absorber 22.

Here, the reason why the left and right cutouts 71 and 72 are formed while the protrusions 73 are formed in the absorber main body 36 will be described.
That is, by pressing the projecting portions 73 toward the front of the vehicle body, the cutout portions 71 and 72 are deformed, and the absorber main body 36 is separated from the left and right support end portions 34 and 35.

The bottom 36d (see FIG. 6) of the absorber main body 36 is removed from the upper edge 61c of the upper flange 61, and the absorber main body 36 is lowered and placed on the upper surface portion 61a of the beam main body 55 and the upper surface portion 56a of the gusset 56.
Thereby, the space 89 (refer FIG.8 (b)) required in order to bend the upper part 44 below the upper part 44 of the rear bumper face 23 is securable.

Here, since the projecting portions 73 are provided on the upper end portion 36c of the absorber main body 36, when the absorber main body 36 is placed on the upper surface portion 61a of the beam main body 55 and the upper surface portion 56a of the gusset 56, the projecting portions 73. It becomes possible to position it above the flange 61.
Thereby, the absorber main body 36 can be reliably lowered to the position where it is placed on the upper surface portion 61 a of the beam main body 55 and the upper surface portion 56 a of the gusset 56.

5 is a cross-sectional view taken along line 5-5 of FIG.
The beam body 55 of the rear bumper beam 21 has upper and lower protrusions 81 and 82 (see also FIG. 3), and includes an upper protruding piece 61 b that protrudes upward from the upper surface 61 a of the upper protrusion 81. A lower projecting piece 62b projecting downward from the lower surface 62a of the lower protrusion 82 is provided.
The upper ridge 81 and the lower ridge 82 are formed in a so-called hat-shaped cross section (a cross section of a hat having a rim around).

The upper side 58a of the beam plate 58 is overlaid on the overhanging piece 61b, and both the members 61b and 58a are joined by spot welding.
The lower side 58b of the beam plate 58 is superposed on the lower overhanging piece 62a, and both members 62b and 58b are joined by spot welding.
A central portion 58c of the beam plate 58 is overlapped with a connecting portion 83 that connects the upper and lower protrusions 81 and 82, and both members 83 and 58c are joined by spot welding.

A portion where the upper projecting piece 61b and the upper side 58a of the beam plate 58 are joined is referred to as an upper flange (flange) 61 projecting upward.
A portion where the lower projecting piece 62b and the lower side 58b of the beam plate 58 are joined is defined as a lower flange 62 projecting downward.

The left fitting groove 75 of the left support end 34 is fitted to the upper flange 61, and the left locking pin 37 of the left support end 34 is inserted into the left insertion hole 31 of the rear bumper beam 21.
In this state, the upper end 34 b of the left support end 34 abuts on the inner surface of the mounting portion 45 provided on the upper portion 44 of the rear bumper face 23.

In addition, the right fitting groove 76 (see also FIG. 3) of the right support end 35 is fitted to the upper flange 61, and the right locking pin 38 of the right support end 35 is inserted to the right of the rear bumper beam 21. Insert into hole 32 (see also FIG. 3).
In this state, the upper end 35 b of the right support end portion 35 comes into contact with the inner surface of the mounting portion 45 provided on the upper portion 44 of the rear bumper face 23.

  Thereby, the mounting part 45 of the rear bumper face 23 is supported by the left and right support end portions 34 and 35, and the rigidity of the rear bumper face 23 can be increased.

  The bumper step 24 is placed on the surface of the placement part 45 of the rear bumper face 23, and the front and rear clips 46, 47,... Are inserted into the front and rear locking holes 51, 52, respectively. A bumper step 24 is attached to the surface of

Specifically, front bumps 46 projecting downward on the front side 24a side of the bumper step 24 are provided, and locking holes 51 are provided in the front portion of the mounting portion 35. The front clips 46 are inserted into the front locking holes 51.
Rear bumps 52 are provided on the rear side 24b side of the bumper step 24, and rear clips 52 are provided on the rear side. The rear clips 52 are inserted into the rear locking holes 52.

The rear bumper face 23 has an upper portion 44 formed substantially flat in an area E1 from the front end portion 44a to the rear end portion 44b.
A tailgate 13 is provided at the upper portion 44 of the rear bumper face 23 and above the vicinity of the front end 44 a of the rear bumper face 23.

6 is a sectional view taken along line 6-6 of FIG.
The rear bumper beam 21 is provided with a gusset 56 at the front center 55c of the beam body 55, and, as an example, three reinforcing plates 84 (only one is shown) are spaced at a predetermined interval on the rear portion 55d of the beam body 55. The three reinforcing plates 84 are covered with a beam plate 58 provided at the rear portion 55d of the beam main body 55.

  The upper ends 84a of the reinforcing plates 84 and the upper side 58a of the beam plate 58 are superposed on the upper projecting piece 61b of the beam body 55, and the respective members 61b, 84a, and 58a are joined by spot welding.

The lower end portion 84b of the reinforcing plate 84 and the lower side 58b of the beam plate 58 are overlapped on the lower projecting piece 62b of the beam body 55, and the members 62b, 84b, and 58b are joined by spot welding.
The central portion 84c of the reinforcing plate 84 and the central portion 58c of the beam plate 58 are superimposed on the connecting portion 83 that connects the upper and lower protrusions 81 and 82, and the respective members 83, 84c, and 58c are spot welded. Join.

A part of the upper flange (flange) 61 projecting upward is formed at a portion where the upper projecting piece 61b, the upper end portion 84a of the reinforcing plate 84, and the upper side 58a of the beam plate 58 are joined.
A part of the lower flange 62 projecting downward is formed at a portion where the lower projecting piece 62b, the lower end portion 84b of the reinforcing plate 84, and the lower side 58b of the beam plate 58 are joined.

The beam plate 58 includes upper and lower hollow protrusions 66 and 67 as a buffer member 65 protruding toward the rear of the vehicle body at the central portion 58c.
The upper hollow protrusion 66 has a protrusion height H1 rearward of the vehicle body, and the lower hollow protrusion 67 has a protrusion height H2 rearward of the vehicle body.
As for the relationship between the protrusion height H1 and the protrusion height H2, H1 <H2 is established.

The bottom portion 36d of the absorber body 36 is placed on the upper edge 61c of the upper flange 61. In this state, the upper end 36e (see also FIGS. 3 and 4) of the absorber main body 36 abuts on the inner surface of the mounting portion 45 provided on the upper portion 44 of the rear bumper face 23.
Thereby, the mounting part 45 of the rear bumper face 23 is supported by the absorber main body 36, and the rigidity of the rear bumper face 23 can be improved.

  Projections 73 are formed on the upper end 36c of the absorber body 36. The projecting portions 73 are projected rearward of the vehicle body such that the rear ends 73a are substantially the same as the rear ends 67a of the lower hollow projections 67, or the rear ends 73a are located on the rear side of the vehicle body.

Accordingly, when the rear portion 86 (see FIG. 1) of the rear bumper face 23 contacts the rear end 67a of the lower hollow projection 67, the rear portion 86a contacts the rear end 73a of the projecting portion 73 substantially simultaneously.
Therefore, the collision energy is efficiently absorbed by crushing the upper portion 44 of the rear bumper face 23 in accordance with the timing of crushing the lower hollow protrusion 67.

A space S is secured between the rear ends 73a of the projecting portions 73 and the rear portion 86 of the rear bumper face 23. The interval S is set in a range of 2 to 5 mm, and is preferably set to 3 mm.
If the distance S is less than 2 mm, the absorber 22 may interfere with the rear bumper face 23 and come off the upper flange 61 due to assembly tolerances when assembled to the vehicle body 11.
If the distance S exceeds 5 mm, the absorber main body 36 may not be detached from the upper flange 61 at the time of low-speed collision (light collision), for example, depending on the deformation amount of the lower hollow protrusion 67.
Therefore, the interval S is set in a range of 2 to 5 mm to improve the assembling property of the absorber 22 and to reliably remove the absorber main body 36 from the upper flange 61 at the time of low-speed collision.

There are provided front insertion pieces 48 (only one is shown) protruding downward on the front side 24a side of the bumper step 24. Bumper step 24 is provided with rear clips 47 (only one is shown) protruding downward on the rear side 24b side of bumper step 24.
The front insertion pieces 48 are inserted into the front insertion holes 53 (only one is shown), and the rear clips 47 are inserted into the rear locking holes 52.
By adopting a configuration in which the front insertion pieces 48 are inserted into the front insertion holes 53, the front insertion pieces 48 can be removed from the front insertion holes 53 relatively easily.

  Returning to FIG. 2, the rear clip 47 (see FIGS. 5 and 6) provided on the rear side 24b side of the bumper step 24 is the same over the entire region from the left end 24c to the right end 24d of the bumper step 24. Things are used.

Further, the front clips 46 (see FIG. 5) provided on the front side 24a side of the bumper step 24 are used in an area E2 near the left end 24c and an area E2 near the right end 24d.
Further, the front insertion pieces 48 (see FIG. 6) provided on the front side 24a side of the bumper step 24 are used in the area E3 of the central portion 24e.

A state in which the bumper step 24 is suitably locked to the mounting portion 45 by including the front clips 46 in the areas E2, E2 on the front side 24a side of the bumper step 24 and in the vicinity of the left and right end portions 24c, 24d. Can be secured.
In addition, by providing the front insertion pieces 48 on the front side 24a side of the bumper step 24 and in the area E3 of the central portion 24e, the front insertion pieces 48 can be relatively easily made from the front insertion holes 53. Can be removed.

  Thereby, in a normal use state, it is possible to ensure a state in which the bumper step 24 is suitably locked to the mounting portion 45, and the front insertion piece 48 ... of the area E3 is removed in the case of a low speed collision. Thus, the upper portion 44 of the rear bumper face 23 can be suitably crushed.

Next, the effect | action of the bumper structure 20 for vehicles is demonstrated based on FIGS.
FIGS. 7A and 7B are views for explaining an example in which the rear part of the bumper face of the vehicle bumper structure according to the present invention collides with the wall part.
In (a), it is conceivable that the rear portion 86 of the rear bumper face 23 collides with the wall portion 88 at a low speed when the vehicle is traveling at a low speed.

In (b), the rear bumper face 23 (mainly the upper part 44) is slightly deformed, and the rear part 86 comes into contact with the rear end 73a of the projecting part 73 and the rear end 67a of the lower hollow protrusion 67.
When the upper portion 44 of the rear bumper face 23 is slightly deformed, the front insertion pieces 48 of the bumper step 24 are detached from the front insertion holes 53.
In addition, the rear portion 86 of the rear bumper face 23 abuts against the rear ends 73a of the protrusions 73, thereby pushing the protrusions 73 toward the front of the vehicle body as indicated by an arrow f.

FIGS. 8A and 8B are diagrams illustrating an example in which the bumper face of the vehicle bumper structure according to the present invention is deformed.
In (a), the left and right end portions 36a and 36b are deformed by the cutout portions 71 and 72 by pressing the projecting portions 73 toward the front of the vehicle body.
The absorber body 36 moves from the left and right support ends 34, 35 forward of the vehicle body as indicated by an arrow g.
The bottom portion 36d (see (b)) of the absorber body 36 is removed from the upper edge 61c of the upper flange 61, and the absorber body 36 is lowered as shown by the arrow h.

In (b), the absorber main body 36 rests on the upper surface portion 61 a of the beam main body 55 and the upper surface portion 56 a of the gusset 56.
Here, since the projecting portions 73 are provided on the upper end portion 36c of the absorber main body 36, when the absorber main body 36 is placed on the upper surface portion 61a of the beam main body 55 and the upper surface portion 56a of the gusset 56, the projecting portions 73. It is located above the flange 61.

Therefore, the absorber main body 36 can be reliably lowered to a position where it is placed on the upper surface portion 61 a of the beam main body 55 and the upper surface portion 56 a of the gusset 56.
As a result, a space 89 is secured below the upper portion 44 of the rear bumper face 23.

In addition, the front insertion pieces 48 of the bumper step 24 are detached from the front insertion holes 53. Therefore, the upper part 44 of the rear bumper face 23 is deformed into a mountain shape on the rear side of the tailgate 13.
As the upper portion 44 of the rear bumper face 23 is deformed, the front clips 46 (see FIG. 5) of the areas E2 and E2 (see FIG. 2) of the bumper step 24 are disengaged from the front locking holes 51.

Thereby, the front side 24a side of the bumper step 24 is separated from the upper part 44 of the rear bumper face 23, and the upper part 44 of the rear bumper face 23 is suitably deformed into a mountain shape on the rear side of the tailgate 13.
At this time, the upper and lower hollow protrusions 66 and 67 are crushed and absorb the collision energy.
Further, the upper portion 44 of the rear bumper face 23 is suitably deformed into a mountain shape on the rear side of the tail gate 13, so that there is no possibility that the tail gate 13 is damaged.

  In addition, although the said embodiment demonstrated the example which deform | transforms the notch parts 71 and 72, removes the absorber main body 36 from the upper edge 61c of the upper flange 61, and lowers the removed absorber main body 36, it is not restricted to this. Thus, the same effect can be obtained by breaking the notches 71 and 72 to remove the absorber body 36 from the upper edge 61c of the upper flange 61 and lowering the removed absorber body 36.

  In the above embodiment, the example in which the present invention is applied to the vehicle bumper structure 20 having the bumper step 24 on the rear bumper face 23 has been described. However, the present invention provides the bumper step 24 on the rear bumper face 23. The same effect can be obtained even if it is applied to a vehicle bumper structure that is not provided.

  The vehicular bumper structure of the present invention is suitable for application to an automobile in which a bumper beam is provided below the tailgate at the rear of the vehicle body, the bumper beam is provided with a buffer member, and the bumper beam and the buffer member are covered with a bumper face.

It is a perspective view which shows the vehicle provided with the bumper structure for vehicles which concerns on this invention. 1 is an exploded perspective view showing a vehicle bumper structure according to the present invention. It is a disassembled perspective view which shows the principal part of the bumper structure for vehicles which concerns on this invention. It is a perspective view which shows the principal part of the bumper structure for vehicles which concerns on this invention. FIG. 5 is a sectional view taken along line 5-5 of FIG. FIG. 6 is a sectional view taken along line 6-6 of FIG. It is a figure explaining the example which the bumper face rear part of the bumper structure for vehicles based on this invention collided with the wall part. It is a figure explaining the example which the bumper face of the bumper structure for vehicles concerning the present invention changes. It is sectional drawing which shows the conventional bumper structure for vehicles.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Vehicle, 12 ... Rear part of vehicle body, 13 ... Tail gate, 20 ... Bumper structure for vehicle, 21 ... Rear bumper beam (bumper beam), 22 ... Absorber, 23 ... Rear bumper face (bumper face), 24 ... Bumper step, 24a ... front side, 34 ... left support end (one of both ends of the absorber), 35 ... right support end (the other of both ends of the absorber), 36 ... absorber body, 36 ... 36a, 36b of the absorber body ... Left and right ends of the absorber body 36 (in the vicinity of the support ends 34 and 35 of the absorber 22), 36c ... upper end of the absorber, 44 ... upper part of the rear bumper face, 61 ... upper flange (flange), 61a ... upper surface of the rear bumper beam Part (upper surface), 61c ... upper edge of upper flange, 65 ... shock absorbing member, 66 ... upper hollow protrusion, 67 ... lower hollow protrusion, 67 Rear ends of the lower hollow protrusion (rear end of the buffer member), 71 ... Left cutout portion (cutout portion), 72 ... right notch (notch), 73 ... protruding portion.

Claims (2)

In the vehicle bumper structure including a bumper beam extending in the vehicle width direction below the tailgate at the rear of the vehicle body, including a buffer member on the bumper beam, and covering the bumper beam and the buffer member with a bumper face,
Extend the flange upward from the upper surface of the bumper beam,
An absorber extending in the vehicle width direction is placed on the upper edge of the flange, and both ends of the absorber are attached to the bumper beam.
Form notches in the vicinity of both ends of this absorber,
A bumper structure for a vehicle, characterized in that, between each notch, an upper end portion of the absorber is provided with a protruding portion protruding rearward of the vehicle body to the rear end of the buffer member. The bumper step for the step is provided so that the front side is removed from the deformed upper portion when the upper portion is deformed at the upper portion of the bumper face and behind the tailgate. The bumper structure for vehicles according to 1.

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