JP4314954B2 - Automobile bumper cover opening closure structure - Google Patents

Description

  The present invention relates to an opening closing structure of a bumper cover that closes an opening for traction work or the like provided in a bumper cover of an automobile by a lid member.

  Generally, a tow hook is provided at each of a front part and a rear part of a vehicle body. These tow hooks are located inside the front bumper cover and the rear bumper cover. For this reason, the front and rear bumper covers are provided with an opening for towing work corresponding to the towing hook, and a lid member for closing the opening is attached, and when towing, the lid member is removed and a tow rope or the like is passed through the opening. It can be hooked on a tow hook (for example, refer to Patent Document 1).

  5 and 6 show a conventional typical bumper cover opening closing structure. The opening 2 </ b> A formed in the bumper cover 1 is circular, and a stepped flange 20 that protrudes toward the back side of the bumper cover 1 is formed on the peripheral edge thereof. Notches 22 and 25 are respectively provided on the left and right side portions and the upper portion of the flange 20, and a slit 23 is formed in the lower portion of the flange 20.

  The lid member 3A is made of a synthetic resin and has a disk shape, and a protruding portion 30 that protrudes toward the back side is formed on the outer peripheral edge. Further, locking pieces 31 corresponding to the left and right notches 22 of the flange 20 protrude from the left and right sides of the back surface of the lid member 3A, respectively, and an arrow-shaped dropout prevention corresponding to the slit 23 of the flange 20 is provided at the lower part. A piece 32 is projected. Further, a tongue-like protruding piece 33 corresponding to the notch 25 of the flange 20 is formed on the upper back surface of the lid member 3A. The projecting piece 33 includes a hanging hole 34 for hanging the lid member 3A to a hook or the like of a painting facility when the lid member 3A is painted.

The lid member 3A is attached so as to cover the opening 2A of the bumper cover 1 from the outside. The lid member 3A has the drop-off prevention piece 32 inserted in the slit 23, the protruding piece 33 is inserted into the notch 25, and the left and right locking pieces 31 are inserted into the locking portion 22 and opened at the outer peripheral portion of the lid member 3A. The bumper cover is arranged so as to cover the flange 20 on the periphery of 2A, the outer peripheral protruding portion 30 is brought into contact with the flange 20, and the locking claws of the right and left locking pieces 31 are fitted and locked to the locking portion 22. 1 is mounted on the same plane. Note that the drop-off preventing piece 32 prevents the lid member 3A from falling off the bumper cover 1 due to the arrow portion at the tip being caught on the periphery of the slit 23 when the lid member 3A is removed during the towing operation.
JP 2001-294105 A

  By the way, the back of the bumper cover 1 is covered with mud that the tire splashes when the vehicle travels. In this case, since the flange 20 protrudes along the back surface of the lid member 3A, the applied mud tends to accumulate in a corner portion formed by the back surface of the lid member 3A and the inner peripheral surface of the flange 20 (FIG. 6). Z). The accumulated mud Z becomes muddy water at the time of car washing and enters a gap between the surface of the flange 20 and the rear surface of the outer peripheral portion of the lid member 3A facing it. At this time, although the protrusion 30 on the outer peripheral edge of the lid member 3A comes into contact with the flange 20, the lid member 3A is only locked and fixed by the left and right locking pieces 31. Since there is no sealing property with the flange 20, the muddy water passes through the protrusion 30 and flows out to the surface side of the bumper cover 1.

  Therefore, the present invention provides an automobile bumper cover opening that can prevent muddy water from flowing out from the back side of the bumper cover to the surface side of the bumper cover through the gap between the peripheral edge of the bumper cover opening and the lid member closing the bumper cover opening. An object of the present invention is to provide a closing structure.

The present invention provides an automobile bumper cover opening closing structure in which an opening formed in an automobile bumper cover is closed with a lid member.
A stepped portion projecting toward the rear side of the bumper cover at the peripheral portion of the opening of the bumper cover and facing the outer peripheral side surface of the lid member, and projecting from the tip of the stepped portion toward the center side of the opening, Form a flange facing the back ,
Projecting from the rear surface of the outer periphery of the lid member to abut against the flange, and forming a protrusion that positions the lid member so that the surface thereof is flush with the surface of the bumper cover ,
And the back surface of the outer periphery of the lid member protrudes into the opening so that the outer peripheral surface faces the tip edge of the flange in a position inward of the projecting portion , and the back surface of the outer periphery of the lid member An inner wall portion that covers a gap between the flange and the flange is provided.
Since the inner wall part that covers the gap between the outer periphery of the lid member and the flange of the bumper cover opening is provided on the back of the lid member, most of the mud splashed by the tire and applied to the lid member is on the inner circumferential surface of the inner wall part. the reservoir, there is no flow out to the surface side of the bumper cover enters the gap between the outer peripheral portion rear and the flange of the lid member also flows out accumulated mud car wash or the like.

A protruding portion that protrudes into a gap between the flange and the back surface of the lid member is formed at the front end of the flange on a surface facing the back surface of the lid member .
Even if a part of the mud splashed by the tire is applied to the outer peripheral surface of the inner wall portion of the lid member, the protrusion provided at the tip of the flange is located in the gap between the flange and the back surface of the lid member. , Mud can be prevented from entering the gap .

  According to the present invention, unlike the conventional structure, muddy water does not flow from the back side of the bumper cover to the surface side of the bumper cover through the gap between the peripheral edge of the opening of the bumper cover and the lid member that closes the opening.

  An embodiment in which the present invention is applied to a closing structure in which an opening for towing work formed in a rear bumper of an automobile is closed with a lid member will be described. As shown in FIG. 4, openings 2 are formed at the left and right side positions of the rear bumper cover 1, and lid members 3 for closing the openings 2 are attached to the rear bumper cover 1. In addition, the obstruction | occlusion structure of each opening 2 is the same structure on either side, and it demonstrates below centering on one of those obstruction | occlusion structures.

As shown in FIG. 1 and FIG. 3, the opening 2 of the bumper cover 1 is formed in a circular shape, and a peripheral portion of the opening 2 has a stepped portion 21 projecting to the back side of the bumper cover 1 and a tip of the stepped portion 21. A flange 20 that protrudes toward the center of the opening 2 and is located on the back side of the bumper cover 1 is formed in an annular shape.

  At both the left and right side positions of the flange 20, a notch 22 is provided by cutting the leading edge of the flange 20 into a shallow rectangular shape. In addition, a slightly horizontally long slit 23 is formed in the lower portion of the flange 20 so as to penetrate the flange 20. Note that the front edge of the lower portion of the flange 20 is formed in a horizontal straight line by the amount of the horizontally long slit 23.

  Further, a protruding portion 24 that protrudes in a substantially semicircular cross section toward the surface side of the flange 20 is formed in a substantially annular shape on the front end edge of the flange 20 except for a portion where left and right cutouts 22 are formed on the front end edge. ing. The surface on the base side of the flange 20 is formed in a planar shape.

As shown in FIGS. 1 and 2, the lid member 3 is integrally formed in a disc shape from a synthetic resin and has a diameter slightly smaller than the diameter of the inner peripheral surface of the step portion 21 of the opening 2. Is formed in such a size that the surface of the flange 20 at the periphery of the opening 2 can be covered by the outer peripheral portion when the cover is closed.

On the outer peripheral edge of the lid member 3, a projecting portion 30 that projects toward the back side of the lid member 2 is formed in an annular shape. The protruding amount of the protruding portion 30 is slightly larger than the protruding amount of the protruding portion 24 at the tip of the flange 20 .

  The rear surface of the lid member 3 projects at a substantially right angle from the rear surface of the lid member 2 at a position on the inner side of the projecting portion 30, and projects into the opening 2 so that the outer peripheral surface is close to and opposed to the front end surface of the flange 20. A cylindrical inner wall portion 35 that covers a gap between the rear surface of the outer peripheral portion of the lid member 3 and the surface of the flange 20 is formed. The protruding amount of the inner wall portion 35 from the back surface of the lid member 3 is set to be larger than the plate thickness of the bumper cover 1 and to protrude from the back surface of the flange 20 by about twice. The lower side portion of the inner wall portion 35 is formed in a flat shape corresponding to the lower end edge of the substantially horizontal linear opening 2.

  The left and right side positions of the back surface of the outer peripheral portion of the lid member 3 project at substantially right angles from the intermediate position between the projecting portion 30 on the outer peripheral edge and the inner wall portion 35 corresponding to the left and right notches 22 of the opening 2. Tongue-shaped locking pieces 31a and 31b are formed. Both the locking pieces 31a and 31b are elastically deformable, and locking claws that can be locked to the edges of the left and right notches 22 of the opening 2 are formed on the outer surface.

  One locking piece 31a (on the left side in FIG. 2) has a tip protruding longer than the other locking piece 31b, and the lid member 3 is connected to the bumper cover 1 at the tip of the locking piece 31a. A through-hole 34 is formed to hang it on a hook or the like of a painting facility when painting in the same color. According to this, although the exclusive protrusion piece 33 (FIG. 5) which forms the through-hole 34 conventionally was formed, the exclusive protrusion piece 33 is provided by providing the through-hole 34 in one locking piece 31a. There is no need to provide it, and the structure of the lid member 3 can be simplified.

  An arrow-like drop-off prevention piece 32 similar to that of the conventional structure is formed to project from an intermediate position between the projecting portion 30 at the outer peripheral lower edge and the lower side portion of the inner wall 35 at the lower back of the outer peripheral portion of the lid member 3.

  In order to attach the lid member 3 to the opening 2 of the bumper cover 1, the drop-off prevention piece 32 is inserted into the slit 23, the inner wall 35 is inserted into the opening 2, and the left and right locking pieces 31 a and 31 b are moved to the left and right. The flange 20 at the periphery of the opening 2 is covered with the outer peripheral portion of the lid member 3, the protrusion 30 at the outer peripheral edge is brought into contact with the base side surface of the flange 20, and left and right locking pieces The locking claws 31a and 31b are fitted and locked to the edges of the notches 22, respectively, and attached to the bumper cover 1 almost flush with each other.

  At this time, the inner wall portion 35 of the lid member 3 passes through the opening 2 and protrudes toward the back side of the bumper cover 1, and the inner wall portion 35 faces the outer peripheral surface of the flange member 20 close to the front end surface of the flange 20. The gap between the rear surface of the outer peripheral portion and the surface of the flange 20 is covered. According to this, the mud that is lifted up by the rear tire when the vehicle travels and is applied to the back surface of the lid member 3 accumulates on the inner peripheral surface of the inner wall portion 35, and exceeds the leading edge of the inner wall portion 35 even if mud flows out by car washing or the like. Fall down. Accordingly, as in the conventional structure, mud enters the gap between the surface of the flange 20 at the peripheral edge of the opening 2 and the back surface of the outer peripheral portion of the lid member 3 facing this, and passes through the protruding portion 30 of the lid member 3 so as to pass through the bumper cover 1. It does not flow out to the surface side of the.

By providing the inner wall portion 35 on the back surface of the lid member 3 as described above, the effect of sufficiently preventing the muddy water from flowing out to the surface of the bumper cover 1 is exhibited. Since a protrusion 24 that protrudes toward the lid member 3 is provided at the tip edge of the flange 20, and this protrusion 24 closes the gap between the back surface of the lid member and the flange 20, a part of the mud splashed up Even if it covers the outer peripheral surface of the inner wall portion 35 of the lid member 3, it does not collect in the gap, and more reliably prevents the muddy water from flowing out to the surface side of the bumper cover 1.

  In the present embodiment, the description has focused on the rear bumper. However, the present invention may be applied to a closing structure in which the opening for towing work formed in the front pan bar is closed with a lid member.

FIG. 5 is a longitudinal sectional view taken along the line II of FIG. 4, showing the opening closing structure of the bumper cover of the present invention. It is a perspective view of the lid member used for the present invention. It is a principal part perspective view which shows opening of the bumper car bar of this invention. 1 is a perspective view of a bumper cover of an automobile to which the present invention is applied. It is a disassembled perspective view of the opening obstruction | occlusion structure of the conventional bumper cover. It is a longitudinal cross-sectional view which follows the VI-VI line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bumper cover 2 Opening 20 Flange 21 Stepped wall 24 Projection part 3 Lid member 30 Projection part 35 Inner wall part

Claims (2)

In the opening closing structure of the bumper cover of the automobile that closes the opening formed in the bumper cover of the automobile with a lid member,
A stepped portion projecting toward the rear side of the bumper cover at the peripheral portion of the opening of the bumper cover and facing the outer peripheral side surface of the lid member, and projecting from the tip of the stepped portion toward the center side of the opening, Form a flange facing the back ,
Projecting from the rear surface of the outer periphery of the lid member to abut against the flange, and forming a protrusion that positions the lid member so that the surface thereof is flush with the surface of the bumper cover ,
And the back surface of the outer periphery of the lid member protrudes into the opening so that the outer peripheral surface faces the tip edge of the flange in a position inward of the projecting portion , and the back surface of the outer periphery of the lid member An opening closing structure for a bumper cover of an automobile, characterized in that an inner wall portion covering a gap between the flange and the flange is provided. 2. The bumper cover for an automobile according to claim 1, wherein a protruding portion that protrudes into a gap between the flange and the back surface of the lid member is formed at a front end of the flange at a surface facing the back surface of the lid member . Opening closing structure.

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