JP2004009901A - Positioning structure of bumper of automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning structure of a bumper provided with: a positioning hole 31 formed on a first panel member 21 structuring a closed section structure by joining a second panel member 29, a locator pin 33 of a front bumper 1 inserted in the positioning hole 31; and an engaging part 41 provided on the locator pin 33 for preventing removal from the positioning hole 31, and also to prevent the engaging part 41 from remaining in a closed section space when the front bumper 1 is removed. <P>SOLUTION: An intermediate space part 23 for communicating a space part 25 in the bumper and a space part 27 on a vehicle body side is formed on an upper side of the positioning hole 31 of the first panel member 21. The piece shaped engaging part 41 bending downward is provided on an upper part of the locator pin 33. A claw part 43 for engaging with a peripheral edge part of the positioning hole 31 in inserting the locator pin 33 into the positioning hole 31, and a pressing part 45 passing the positioning hole 31 through from a tip end side of the locator pin 33 and projecting to the space part 25 in the bumper are integrally formed on the engaging part 41. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure for positioning a bumper on a vehicle body using a positioning pin.
[0002]
[Prior art]
Conventionally, as a bumper positioning structure of this type of automobile, for example, as disclosed in Japanese Patent No. 2958276, a positioning pin projecting from the back surface of the bumper is inserted into a positioning hole of the first panel member. In this case, the bumper can be positioned even when the robot automatically mounts the bumper on an automobile assembly line. Then, the positioned bumper is fixed by a bolt after aligning a bolt insertion hole formed in the bumper with a nut fixed to the first panel member.
[0003]
[Problems to be solved by the invention]
By the way, in recent years, the bumper has been increased in size and increased in weight. Therefore, a bumper reinforcement having a closed cross-sectional structure is configured by combining two panel members, and the bumper is positioned at the bumper reinforcement. Thus, it is conceivable to secure sufficient support rigidity during positioning.
[0004]
When the support by the robot is released, the bumper positioned as in the conventional example is tilted so that the positioning pin is pulled out of the positioning hole by its own weight, and the upper side of the bumper is separated from the first panel member. Sometimes. In such a case, the bolt insertion hole of the bumper and the nut of the vehicle body are separated from each other, so that it becomes difficult to fasten the bumper. Therefore, when the positioning pin is inserted into the positioning hole, the stopper engages with the peripheral edge of the positioning hole. It is conceivable to provide a locking portion of the above and suppress the inclination of the positioning pin due to the weight of the bumper by the locking portion.
[0005]
However, when the bumper is positioned on the panel member of the bumper reinforcement as described above, since the locking portion is located inside the bumper reinforcement, when the assembled bumper is once removed by repair. The engagement state of the locking portion cannot be released. That is, when the bumper is removed, the locking portion is broken and remains inside the bumper reinforcement (the closed cross section). In this case, the broken locking portion cannot be taken out from the inside of the bumper reinforcement. Therefore, the engaging portion generates abnormal noise in the bumper reinforcement during running.
[0006]
The present invention has been made in view of the above points, and an object of the present invention is to form a positioning hole in a panel member constituting a closed cross-sectional structure, and insert a positioning pin of a bumper into the positioning hole to form the positioning member. When positioning the bumper, we devised the structure of the locking part for retaining the positioning pin to make it easier to fasten the bumper to the vehicle body. The purpose is to prevent it from remaining in space.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to a solution of the present invention, an intermediate space portion that communicates with a space portion on the vehicle body inner side and a space portion on the bumper side of the panel member is formed on the panel member, and A holding portion is formed in the locking portion so as to penetrate the positioning hole and protrude into the space on the bumper side.
[0008]
Specifically, in the invention of claim 1, a positioning pin is provided so as to protrude from the rear surface of the bumper toward the vehicle body, and the positioning pin is inserted into a positioning hole formed in the first panel member extending in the vehicle width direction. It is assumed that the structure for positioning a bumper of an automobile is as described above. A second panel member having a substantially U-shaped cross-section and extending in the vehicle width direction is joined to the first panel member on the inner surface of the vehicle body so as to form a closed cross-sectional structure together with the first panel member. The positioning hole is formed in a first panel member facing a vertical wall of the second panel member, and a position above the positioning hole of the first panel member is on the vehicle body inner side with respect to the first panel member. An intermediate space is formed to communicate the vehicle-body-side space with the bumper-side space outside of the first panel member than the first panel member, and a positioning hole for the positioning pin, which is bent downward, is formed above the positioning pin. A flexible locking portion is provided which allows insertion into the positioning hole and engages with the peripheral edge of the positioning hole when inserted into the positioning hole to prevent the positioning pin from coming off. When the positioning pin is inserted into the positioning hole. A pressing portion that penetrates through the positioning hole from the tip side of the determining pin and projects to the bumper-side space is integrally formed, and the locking portion is configured to bend downward by pressing the pressing portion downward. Shall be.
[0009]
According to this configuration, the second panel member having a substantially U-shaped cross section is joined to the first panel member on the inner surface of the vehicle body so as to form a closed cross-sectional structure with the first panel member. Is inserted into a positioning hole formed in the first panel member facing the vertical wall of the second panel member. When the positioning pin is inserted, the locking portion of the positioning pin bends downward, so that the positioning pin can be easily inserted. After that, when the positioning pin is completely inserted, the locking portion engages with the peripheral edge of the positioning hole to prevent the positioning pin from coming off, thereby suppressing the inclination of the positioning pin due to the weight of the bumper. The fastening work is easy.
[0010]
On the other hand, when the assembled bumper is once removed for repair or the like, the worker inserts his hand from the vehicle body side space through the intermediate space to the bumper side space, and presses down the holding portion to engage. The engagement between the locking portion and the peripheral edge of the positioning hole can be easily released by bending the stop portion downward.
[0011]
That is, when the positioning pin is inserted into the portion of the first panel member having the closed cross-sectional structure to sufficiently secure the support rigidity at the time of positioning the bumper, the fastening portion facilitates the work of fastening the bumper. When the assembled bumper is once removed, breakage of the locking portion can be prevented beforehand, so that the locking portion is located within the closed cross-sectional space between the first panel member and the second panel member. It will not remain.
[0012]
According to a second aspect of the present invention, in the first aspect of the present invention, a lower portion of the positioning pin has a horizontal surface portion extending substantially horizontally from a base end thereof to a distal end thereof, and a hanging surface portion hanging down from a distal end of the horizontal surface portion. Is formed, and the step is positioned closer to the distal end of the positioning pin than the engaging portion of the locking portion with the peripheral edge of the positioning hole.
[0013]
That is, when the bumper is removed from the vehicle body, the locking portion of the positioning pin may be broken. According to the present invention, when the bumper whose locking portion has been broken is reassembled at a repair shop, the step of the positioning pin comes into firm engagement with the lower edge of the positioning hole due to the weight of the bumper. Without supporting the positioning pin.
[0014]
Further, since the step portion is formed on the distal end side of the positioning pin with respect to the engagement portion of the locking portion with the positioning hole, the size of the positioning hole of the first panel member can be reduced, and the rigidity of the vehicle body can be improved.
[0015]
According to a third aspect of the present invention, in the first or second aspect, a gap is provided between the lower end of the positioning pin and the lower edge of the positioning hole when the bumper is fixed to the vehicle body.
[0016]
This allows the bumper to be mounted at a proper position while allowing a dimensional error in manufacturing the bumper or the first panel member.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
FIG. 1 shows an embodiment in which a vehicle bumper positioning structure according to the present invention is applied to a front bumper 1. The front bumper 1 is formed by injection molding a resin material so as to have a shape substantially continuous with the hood 3 and the left and right front fenders 5, 5. The front bumper body 7 is attached to the rear side of the front bumper body 7. It comprises a pair of left and right plate members 9 for positioning the front bumper body 7 on the vehicle body.
[0019]
At the upper side of the front bumper main body 7, a center notch 11 in which a front grill fixed to the hood hood 3 is provided is formed substantially at the center in the vehicle width direction, and both right and left sides of the center notch 11 are formed. Are provided with headlamp arrangement portions 13, 13, respectively. An air introduction hole 15 is formed below the center notch 11 of the front bumper main body 7 into the engine room. On both sides of the air introduction hole 15 in the vehicle width direction, relatively small air introduction holes 17, 17 are provided. The portion of the front bumper body 7 between the central notch 11 and the air introduction hole 15 is shown in FIG. 2, but expands toward the front of the vehicle body so as to have a substantially U-shaped cross section open to the rear of the vehicle body. The intermediate portion 19 is protruded.
[0020]
A first panel member 21 extending substantially vertically from near the upper end to near the lower end of the intermediate portion 19 and extending across both ends in the vehicle width direction of the intermediate portion 19 is provided behind the intermediate portion 19 of the front bumper body 7 in the vehicle body. It is arranged. Above the first panel member 21, a space (bumper-side space) 25 inside the bumper on the vehicle front side with respect to the first panel member 21 and the vehicle body side on the vehicle rear side with respect to the first panel member 21 An intermediate space 23 is provided to communicate with the space 27 (vehicle-side space).
[0021]
A second panel member 29 having a substantially U-shaped cross section opened to the front side of the vehicle body is joined to a rear surface of the vehicle body of the first panel member 21. The second panel member 29 extends over both ends of the first panel member 21 in the vehicle width direction, and is located at the upper end thereof and extends substantially horizontally from the rear surface of the first panel member 21 to the rear of the vehicle body. A vertical wall 29b extending substantially vertically downward from a rear end edge of the upper wall 29a; and a lower wall 29c extending substantially horizontally from a lower end edge of the vertical wall 29b forward to the vehicle body to a rear surface of the first panel member 21. Have. The upper wall 29a and the lower wall 29c of the second panel member 29 are formed with an upper flange 29d and a lower flange 29e extending upward and downward along the first panel member 21 from the respective front edges. In the second panel member 29, the upper edge of the upper flange 29d substantially coincides with the upper edge of the first panel member 21, and the lower flange 29e is located above the lower edge of the first panel member 21. As described above, the front surfaces of the upper and lower flanges 29d and 29e are joined and welded to the rear surface of the first panel member 21, and thus the bumper having a closed cross-sectional structure by the first panel member 21 and the second panel member 29. Reinforcement F is configured. Although not shown, the bumper reinforcement F has both ends in the vehicle width direction of the second panel member 29 fastened to the vehicle body frame.
[0022]
The first panel member 21 located between the upper wall 29a and the lower wall 29c of the pair of second panel members 29, that is, the first panel member 21 facing the vertical wall 29b of the second panel member 29 has the plate Positioning holes 31 through which locator pins (described later) as positioning pins provided in the members 9 and 9 are inserted are formed, and the positioning holes 31 are formed on the first panel member 21 constituting the closed cross section. It is located near the upper end.
[0023]
Next, the plate members 9, 9 will be described. Each of the plate members 9, 9 is formed by injection molding of a resin material, and has a vehicle width between the central cutout 11 of the front bumper main body 7 and the air introduction hole 15. The two plate members 9, 9 are disposed at substantially the same distance from the center of the front bumper body 7 in the vehicle width direction on the left and right sides of the vehicle body, respectively.
[0024]
The plate members 9 have a substantially rectangular plate-shaped main body portion 9a extending vertically from the upper end to the lower end of the intermediate portion 19 of the front bumper main body 7 when viewed in the vehicle front-rear direction. At the upper end and the lower end of the main body 9a, holes 9b, 9b into which mounting pieces 7a, 7a projecting rearward from the rear surface of the front bumper main body 7 are formed, and plate members 9, 9 are formed. Is fixed to the front bumper body 7, the attachment pieces 7a, 7a and the peripheral edges of the holes 9b, 9b are vibration-welded.
[0025]
Further, a bulging portion 9c bulging rearward of the vehicle body is formed at a vertically intermediate portion of the main body 9a of the plate members 9, 9, and an upper end portion of the rear surface of the bulging portion 9c A locator pin 33, which is a feature of the present invention, projects substantially horizontally to the rear of the vehicle body. The locator pin 33 is formed in a tapered shape whose diameter decreases toward the distal end. On the upper portion of the locator pin 33, a piece having flexibility that is inclined so as to be located higher toward the base end of the locator pin 33 from near the portion substantially corresponding to the hanging surface portion 37. A locking portion 41 is formed integrally, and a claw portion 43 projecting upward is formed on the upper portion of the locking portion 41.
[0026]
Further, a plate-like pressing portion 45 that projects substantially horizontally from the lower side of the claw portion 43 to the base end side of the locator pin 33 is integrally formed with the locking portion 41. The base end side of the locator pin 33 of the holding portion 45 extends to a position corresponding to the base end of the locator pin 33, and the end is bent upward at a substantially right angle.
[0027]
Each of the locator pins 33 is in a state where the claw portion 43 is located completely behind the positioning hole 31 of the first panel member 21 when the front bumper 1 is at a proper mounting position on the vehicle body. In this state, the claw portion 43 approaches the upper edge portion of the positioning hole 31 on the vehicle body side, while the pressing portion 45 penetrates the positioning hole 31 from the distal end side of the locator pin 33 and projects to the space 25 inside the bumper. I have. Further, the outer diameter of the locator pin 33 is set so that when the front bumper 1 is at the regular mounting position, there is a gap between the lower end of the front bumper 1 and the lower edge of the positioning hole 31. Even when the dimensional error in manufacturing the front bumper 1 and the first panel member 21 is relatively large, the front bumper 1 can be easily assembled at a regular position.
[0028]
Next, a procedure for assembling the front bumper 1 to the vehicle body will be described. First, the plate members 9, 9 are welded and fixed to the front bumper body 7. Then, the front bumper 1 is mounted on a robot (not shown) on the assembly line of the automobile, and is moved to the first panel member 21 from the front to the rear of the vehicle body substantially horizontally to be assembled. Then, the claw portion 43 of the locator pin 33 is pressed downward by the upper edge portion of the positioning hole 31 and the locking portion 41 is bent so that the claw portion 43 is displaced downward, whereby the insertion of the locator pin 33 is prevented. The nail portion 43 is allowed to pass through the positioning hole 31.
[0029]
When the locator pin 33 is completely inserted, the state of the front bumper 1 mounted on the robot is released. At this time, the front bumper 1 is inclined by its own weight so that its upper side is displaced toward the front of the vehicle body. However, since the claw portion 43 of the locator pin 33 is close to the upper edge of the positioning hole 31 as described above, When the claw portion 43 comes into contact with the upper edge portion of the positioning hole 31 from the vehicle body side, the locator pin 33 is prevented from coming off, whereby the degree of inclination of the front bumper 1 becomes extremely small. Therefore, the bolt insertion hole (not shown) of the front bumper 1 can be brought close to the nut (not shown) provided on the vehicle body without pressing down the front bumper 1, thereby facilitating the fastening operation. Can be.
[0030]
Next, for example, when the front bumper 1 is damaged, a procedure for removing the front bumper 1 from the vehicle body at a repair shop or the like, repairing the front bumper 1, and attaching the front bumper 1 to the vehicle body again after repair will be described. First, the hood 3 is opened, and although not shown, the bolts for fastening the front bumper 1 to the vehicle body are removed. Thereafter, the worker moves from the space 27 on the vehicle body side through the intermediate space 23 to the space inside the bumper. The hand is inserted into the portion 25 and the pressing portion 45 of the locator pin 33 is pressed downward. In this case, as shown by the imaginary line in FIG. 2, the locking portion 41 is bent so that the claw portion 43 is displaced downward, and the engagement state between the claw portion 43 and the peripheral edge of the positioning hole 31 is released. At this time, the front bumper 1 can be easily removed from the vehicle body by pulling the front bumper 1 forward of the vehicle body.
[0031]
Thereafter, when assembling the repaired front bumper 1 to the vehicle body, the worker holds the front bumper 1 and approaches the first panel member 21 from the front of the vehicle body, and inserts the locator pin 33 into the positioning hole 31. . After that, when the bolt is fixed at a regular position with a bolt, the claw portion 43 is engaged with the upper edge portion of the positioning hole 31 as in the case of the assembly on the assembly line, so that it can be easily performed.
[0032]
Therefore, according to the positioning structure of the bumper of the vehicle according to this embodiment, the second panel member 29 is joined to the rear side of the first panel member 21 to form a closed cross-sectional structure, and the positioning hole is formed in the first panel member 21. Since the locator pins 33 of the front bumper 1 are inserted into the positioning holes 31 after the formation of the front bumpers 1, the support rigidity at the time of positioning the front bumpers 1 can be sufficiently secured. At this time, since the locator pin 33 is provided above the flexible locking portion 41 which engages with the peripheral portion of the positioning hole 31 when the locator pin 33 is inserted into the positioning hole 31, The locator pin 33 is prevented from coming off due to the weight of the front bumper 1, so that the work of fastening the front bumper 1 to the vehicle body can be facilitated.
[0033]
On the other hand, an intermediate space 23 is formed above the positioning hole 31 of the first panel member 21 to communicate the space 25 inside the bumper and the space 27 on the vehicle body side, and the locator pin 33 is locked. Since the pressing portion 45 that penetrates the positioning hole 31 from the tip end side of the locator pin 33 and projects to the space 25 inside the bumper is integrally formed on the portion 41, when the front bumper 1 once attached is removed, Then, the operator can insert the hand from the space 27 on the vehicle body side through the intermediate space 23 to press the pressing portion 45 to bend the locking portion 41 downward. Thus, when the front bumper 1 is removed, the locking portion 41 is not broken and remains in the closed cross-section structure, and generation of abnormal noise due to vehicle body vibration during traveling can be prevented.
[0034]
(Other embodiments)
It should be noted that the present invention is not limited to the above embodiment, but includes other various embodiments. That is, in the above-described embodiment, the locator pin 33 is formed integrally with the front bumper main body 7 and the plate members 9, 9 separate from each other. However, the present invention is not limited thereto, and the locator pin 33 may be formed integrally with the front bumper main body 7. . Further, the front bumper body 7 and the plate members 9, 9 may be integrally formed.
[0035]
As shown in FIG. 3, a horizontal surface portion 35 extending substantially horizontally from the base end to the center of the locator pin 33 in the longitudinal direction from the base end thereof to the lower end of the locator pin 33, A step portion 39 including a hanging surface portion 37 hanging down from the edge may be formed. In this case, when assembling the front bumper 1 to the vehicle body, first, the tip of the locator pin 33 is inserted into the positioning hole 31 of the first panel member 21. Thereafter, when the hanging surface portion 37 is inserted into the horizontal surface portion 35 through the positioning hole 31, the front bumper 1 is slightly lowered by the robot, whereby the horizontal surface portion 35 approaches or comes into contact with the lower edge of the positioning hole 31. And is fastened to the vehicle body in this state. Further, when removing the front bumper 1 from the vehicle body at a repair shop, it is conceivable that the locking portion 41 may be broken. In this case, when the front bumper 1 is subsequently assembled, the locator pin 33 may come off due to its own weight. As a result, the fastening work becomes complicated. On the other hand, in this embodiment, the step portion 39 is formed on the locator pin 33. Therefore, when the locator pin 33 is inserted into the positioning hole 31, the step portion 39 is lowered by the weight of the front bumper 1 so that the lower edge of the positioning hole 31 is formed. As a result, the locator pin 33 does not come out of the positioning hole 31. Therefore, the worker can position the front bumper 1 with respect to the vehicle body by lightly supporting the front bumper 1, and can easily fix the positioned front bumper 1 to the vehicle body with bolts. Since the claw portion 43 of the locator pin 33 is positioned closer to the base end of the locator pin 33 than the hanging surface 37 of the step portion 39, the size of the positioning hole 31 of the first panel member 21 can be reduced, and the rigidity of the vehicle body can be reduced. Can be improved.
[0036]
As shown in FIG. 3, the upper side of the first panel member 21 is extended so as to be close to the upper part of the plate member 9, and an opening 50 is formed in the extended portion to form a space 25 inside the pumper. The space 27 on the vehicle body side may be communicated. In this case, the inside of the opening 50 corresponds to the intermediate space 23.
[0037]
In FIG. 3, the same components as those of the embodiment of FIG. 2 are denoted by the same reference numerals as those of FIG.
[0038]
When the front bumper 1 once attached is removed from the vehicle body, not only is the hand inserted from the vehicle body side space portion 27 through the intermediate space portion 23 to press the holding portion 45, but also a tool is inserted and the holding portion 45 is inserted. Of course, it is also possible to press.
[0039]
Furthermore, the present invention can be applied to a rear bumper.
[0040]
【The invention's effect】
As described above, according to the bumper positioning structure for an automobile according to the first aspect of the present invention, the positioning pin is provided so as to protrude from the rear surface of the bumper toward the vehicle body, and the positioning pin is inserted into the positioning hole of the first panel member. In the insertion, the second panel member having a substantially U-shaped cross-section is joined to the inner surface of the first panel member so as to form a closed cross-sectional structure together with the first panel member. Since it is formed on the first panel member facing the vertical wall of the two-panel member, sufficient support rigidity can be secured when positioning the bumper. The upper portion of the positioning pin is bent downward to allow the positioning pin to be inserted into the positioning hole, and when the positioning pin is inserted into the positioning hole, the positioning pin is engaged with the peripheral edge of the positioning hole so that the positioning pin comes off. Is provided, the work of inserting the positioning pin and the work of fastening the bumper to the vehicle body can be easily performed. Further, an intermediate space is formed to connect the vehicle body side space part and the bumper side space part, and the locking part is formed by penetrating the positioning hole from the tip side of the locator pin when the positioning pin is inserted into the positioning hole. Since the holding portion projecting to the bumper side space is integrally formed, and the locking portion is configured to bend downward by pressing the holding portion downward, when the bumper once assembled to the vehicle body is removed. Then, the worker can release the engagement state of the locking portion by inserting a hand from the intermediate space portion into the bumper-side space portion, whereby the locking portion is disengaged from the first panel member and the second panel member. It does not remain in the closed cross-sectional space between them, so that generation of abnormal noise during traveling can be prevented.
[0041]
According to the second aspect of the present invention, since the step portion is formed below the positioning pin, and the step portion is positioned closer to the tip of the positioning pin than the engaging portion of the locking portion with the peripheral edge of the positioning hole. When reassembling the bumper in which the locking portion has been broken, the whole positioning pin can be prevented from coming off without separately supporting the bumper.
[0042]
Further, since the step portion is formed on the distal end side of the positioning pin with respect to the engagement portion of the locking portion with the positioning hole, the size of the positioning hole of the first panel member can be reduced, and the rigidity of the vehicle body can be improved.
[0043]
According to the third aspect of the invention, the bumper can be fixed at a proper position while allowing a dimensional error in manufacturing the bumper or the first panel member.
[Brief description of the drawings]
FIG. 1 is a front view of a front bumper according to an embodiment of the present invention as viewed from the front of a vehicle body.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a diagram corresponding to FIG. 2 according to another embodiment.
[Explanation of symbols]
1 Front Bumper 21 First Panel Member 23 Intermediate Space 25 Space Inside Bumper (Bumper Side Space)
27 Body side space (body side space)
29 second panel member 29b vertical wall 31 positioning hole 33 locator pin (positioning pin)
35 Horizontal surface part 37 Hanging lower surface part 39 Step part 41 Lock part 45 Holding part

Claims (3)

In a bumper positioning structure for a vehicle, a positioning pin is provided so as to protrude from the rear surface of the bumper toward the vehicle body, and the positioning pin is inserted into a positioning hole formed in a first panel member extending in the vehicle width direction.
A second panel member having a substantially U-shaped cross-section and extending in the vehicle width direction is joined to the first panel member on the inner surface of the vehicle body so as to form a closed cross-sectional structure together with the first panel member,
The positioning hole is formed in a first panel member facing a vertical wall of the second panel member,
Above the positioning hole of the first panel member, a vehicle-side space on the vehicle body inner side of the first panel member and a bumper-side space on the vehicle body outer side of the first panel member communicate with each other. An intermediate space part is formed,
The upper part of the positioning pin is bent downward to allow the positioning pin to be inserted into the positioning hole, and when inserted into the positioning hole, engages with the peripheral edge of the positioning hole to prevent the positioning pin from coming off. Flexible locking portion is provided,
The retaining portion is integrally formed with a pressing portion that penetrates the positioning hole from the tip side of the positioning pin and projects to the bumper-side space when the positioning pin is inserted into the positioning hole,
The positioning structure for a bumper of an automobile, wherein the locking portion is configured to bend downward by pressing the pressing portion downward. In claim 1,
At the lower portion of the positioning pin, a horizontal surface portion extending substantially horizontally from the base end side to the distal end side, and a step portion including a hanging surface portion hanging down from the front end of the horizontal surface portion are formed.
The bumper positioning structure for an automobile according to claim 1, wherein the step portion is positioned closer to a tip end of the positioning pin than an engagement portion of the locking portion with the peripheral edge of the positioning hole. In claim 1 or 2,
A positioning structure for an automobile bumper, wherein a gap is provided between a lower end of a positioning pin and a lower edge of a positioning hole when the bumper is fixed to a vehicle body.

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