JP2007253898A - Lamp fixing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrict movement of a lamp upward of a vehicle due to an impact applied to a bumper. <P>SOLUTION: A notch part is formed in a corner where a ledge surface 12C and a side surface 12D of the bumper 12 cross each other, and a groove 12G is formed on a boundary between the ledge surface 12C and the side surface 12D on a back side of the bumper 12. Furthermore, a groove 12F is formed to be extended in the car cross direction on a back side of the ledge surface 12C so as to reduce rigidity of the ledge surface 12C in the back and forth direction of the vehicle in comparison with rigidity of the side surface 12D in the back and forth direction of the vehicle. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lamp mounting structure provided at a vehicle front end or a vehicle rear end.

In general, a bumper is provided at the lower front end of the vehicle, and a headlamp is provided on the vehicle upper side of the bumper (see, for example, Patent Document 1). For this reason, when a load is input to the bumper from the front side of the vehicle, the headlamp is pushed up by the bumper, and the fender or the hood may be deformed or damaged.
Japanese Utility Model Publication No. 5-3052

  In view of the above fact, an object of the present invention is to suppress a lamp from moving upward due to a load input to a bumper.

  According to a first aspect of the present invention, there is provided a lamp mounting structure, wherein the lamp is provided at any one of a front end portion and a rear end portion of the vehicle, and is disposed on either the front side or the rear side of the lamp and on the lower side of the vehicle. A shelf surface, a side surface disposed on either the vehicle front side or the vehicle rear side of the ramp and on the vehicle width inner side, and a rigidity reducing means for lowering the rigidity of the shelf surface than the rigidity of the side surface. And a bumper provided.

  In the lamp mounting structure according to claim 1, the bumper shelf surface is provided on either the vehicle front side or the vehicle rear side of the lamp provided at either the vehicle front end portion or the vehicle rear end portion and on the vehicle lower side. A bumper side surface is disposed on either the vehicle front side or the vehicle rear side of the lamp and on the vehicle inner side.

  Here, the rigidity of the bumper shelf surface is made lower than the rigidity of the side surface of the bumper by the rigidity reducing means. For this reason, when a load such as a light collision is input from the front side of the vehicle to the bumper provided at the front end of the vehicle, or a large load is applied from the rear side of the bumper provided at the rear end of the vehicle. When input, the load applied to the ramp via the bumper is dominated by the load from the side of the vehicle, so that the bumper shelf can suppress the ramp from pushing the ramp upward.

  The lamp mounting structure according to claim 2 is the lamp mounting structure according to claim 1, wherein the lamp pushed by at least one of the side surface and the lamp is guided to the lower side of the vehicle. It is configured as described above.

  In the lamp mounting structure according to claim 2, a load at the time of a light collision or the like is input from the front side of the vehicle to the bumper provided at the front end portion of the vehicle, or the bumper provided at the rear end portion of the vehicle. When a large weight is input from the rear side of the vehicle and the bumper moves in the vehicle rearward direction or the vehicle forward direction and the ramp is pushed, the ramp is guided to the lower side of the vehicle. As a result, the bumper shelf surface can be prevented from pushing the ramp upward.

  The lamp mounting structure according to claim 3 is the lamp mounting structure according to claim 1 or 2, wherein the shelf surface that pushes the vehicle lower end portion of the lamp to the vehicle lower end portion of the lamp is provided. An inclined surface that leads to the vehicle lower side is formed.

  In the lamp mounting structure according to claim 3, a load at the time of a light collision or the like is input from the front side of the vehicle to the bumper provided at the front end portion of the vehicle, or the bumper provided at the rear end portion of the vehicle. When a large weight is input from the rear side of the vehicle, the bumper moves in the vehicle rearward direction or the vehicle forward direction and the shelf surface pushes the vehicle lower end of the ramp. The shelf surface is guided to the vehicle lower side by the inclined surface. As a result, the bumper shelf surface can be prevented from pushing the ramp upward.

  A lamp mounting structure according to a fourth aspect of the present invention is the lamp mounting structure according to any one of the first to third aspects, further comprising movement restricting means for restricting movement of the lamp to the upper side of the vehicle. And

  In the lamp mounting structure according to the fourth aspect, the movement of the lamp to the upper side of the vehicle is restricted by the movement suppressing means. For this reason, even when a load such as a light collision on the upper side of the vehicle is input to the bumper and a load such as a light collision on the upper side of the vehicle is applied to the ramp via the bumper, the rack surface of the bumper is Can be suppressed from being pushed upward.

  The lamp mounting structure according to claim 5 is the lamp mounting structure according to any one of claims 1 to 4, wherein the rigidity reducing means is formed on a boundary line between the shelf surface and the side surface. It has a notch part and the 1st thin part formed in the vehicle width direction of the said shelf surface, It is characterized by the above-mentioned.

  In the lamp mounting structure according to claim 5, since the notch is formed on the boundary line between the bumper shelf surface and the side surface, the bumper side surface and the shelf are loaded by a load applied to the bumper during a light collision or the like. When the surface comes into contact with the ramp, the bumper begins to crack from the notch and the shelf surface begins to separate from the side. Thereby, the rigidity of a shelf surface falls. Moreover, the shelf surface is further reduced in rigidity by being formed with a first thin portion thinner than the periphery extending in the vehicle width direction, and the shelf surface can be broken at the first thin portion. As a result, the bumper shelf surface can be prevented from pushing the ramp upward.

  The lamp mounting structure according to claim 6 is the lamp mounting structure according to claim 5, wherein the rigidity reducing means has a second thin part formed on a boundary line between the shelf surface and the side surface. It is characterized by that.

  In the lamp mounting structure according to claim 6, in addition to the lamp mounting structure according to claim 5, by forming a second thin part thinner than the surroundings on the boundary line between the shelf surface and the side surface, The ease of cracking of the boundary line with the side surface is improved, and the ease of cracking of the second thin part formed on the shelf surface is improved.

  As described above, it is possible to prevent the lamp from moving upward due to the impact applied to the bumper.

  Next, an embodiment of the lamp mounting structure of the present invention will be described with reference to FIGS.

  In the figure, the arrow FR indicates the vehicle front direction, the arrow UP indicates the vehicle upward direction, and the arrow IN indicates the vehicle width inside direction.

  As shown in FIG. 1, a bumper 12 is disposed in the vehicle width direction at the lower front end of the vehicle, and a pair of headlamps 10 are arranged at both ends in the vehicle width direction on the vehicle rear side (vehicle upper side) of the bumper 12. It is installed. Further, a fender 14 is disposed on the rear side of the headlamp 10 and on the outer side of the vehicle width, and a hood 16 is disposed on the rear side of the headlamp 10 and on the inner side of the vehicle width.

  The bumper 12 extends in the vehicle width direction on the vehicle front side (vehicle lower side) of the headlamp 10 and faces the vehicle front side, the lower general surface 12A, and the vehicle width inner side of the headlamp 10 and the lower general surface 12A on the vehicle upper side. And the upper general surface 12B facing the front side of the vehicle is integrally formed. The vehicle upper end 12E of the lower general surface 12A faces the vehicle lower end 10D of the headlamp 10 in the vehicle front-rear direction, and the vehicle width outer end 12F of the upper general surface 12B is the vehicle width of the headlamp 10. It faces the inner end 10E in the vehicle longitudinal direction.

  Further, the shelf surface 12C extends from the vehicle upper end portion 12E of the lower general surface 12A to the vehicle lower end portion 10D of the headlamp 10, and the vehicle width inner side of the headlamp 10 from the vehicle width outer end portion 12F of the upper general surface 12B. A side surface 12D extends to the end 10E. As shown in FIGS. 4 and 5, a rib 12 </ b> R that protrudes in the vehicle rearward direction is formed at the vehicle rear side end portion of the shelf surface 12 </ b> C.

  Here, the short overhang is adopted as the design of the bumper 12, so that the allowance from the headlamp 10 of the bumper 12 is small, and the shelf surface 12C is formed under the headlamp 10 of the bumper 12, Compared to a bumper that does not employ a short overhang, the vehicle front-rear direction rigidity of the vehicle upper end portion of the bumper 12 is increased.

  Further, as shown in FIG. 1, a V-shaped recess 14 </ b> A that exposes the corner 10 </ b> B at the vehicle width outer side end and the vehicle rear side end of the headlamp 10 at the vehicle front side end portion of the fender 14 in a V shape. The peripheral edge portion of the recess 14A surrounds the periphery of the corner portion 10B at the vehicle width outer side end and the vehicle rear side end of the headlamp 10.

  Further, at both ends of the front end of the hood 16 are formed step portions 16A that expose the corner portions 10C at the vehicle width inner end and the vehicle rear end of the headlamp 10, and the peripheral portion of the step portion 16A is the head portion. The lamp 10 surrounds the corner 10C at the vehicle width inner side end and the vehicle rear side end.

  The headlamp 10 is integrally formed with a holder (not shown) (for example, with an adhesive filled between the periphery of the lamp lens and the holder). As shown in FIGS. 2 and 3, the holder of the headlamp 10 is provided with a plurality of brackets 17, 18, 19, and 20, and the brackets 17, 18, 19, and 20 are fixed to the front end portion of the vehicle. As a result, the headlamp 10 is supported at the front end of the vehicle. Note that the brackets 17, 18, 19, and 20 are formed integrally with the holder 24 or attached to the holder 24, and thus are illustrated in a state of being separated from the headlamp 10.

  Further, as shown in FIG. 4, an inclined surface 10A that is gradually inclined toward the vehicle rear side toward the vehicle lower side is formed at the vehicle lower end portion 10D of the headlamp 10, and the inclined surface 10A and ribs are formed. 12R is opposed to the vehicle longitudinal direction.

  Further, as shown in FIGS. 1 and 6, the V-shaped groove 12G is formed on the boundary line between the shelf surface 12C and the side surface 12D on the back surface of the bumper 12, so that the shelf surface is thinner. A triangular notch 12H is formed through the vehicle rear side end portion of the boundary line between 12C and the side surface 12D. As shown in FIGS. 1, 5, and 7, the straight line extending from the groove 12F on the back side of the shelf surface 12C in the vehicle width direction and reaching the vehicle rear side end portion of the shelf surface 12C is V-shaped. By forming the groove 12F, it is thinner than the surroundings. For this reason, the shelf surface 12C has lower rigidity in the vehicle front-rear direction than the side surface 12D.

  As shown in FIGS. 2 and 3, the bracket 17 is disposed outside the vehicle width of the headlamp 10, and the plurality of brackets 18, 19, and 20 are described in the vehicle rearward direction inside the vehicle width of the headlamp 10. They are arranged in order. Among them, the bracket 18 arranged on the most front side of the vehicle projects from the holder of the headlamp 10 toward the inside of the vehicle width, and is fixed to a radiator support bracket 22 provided close to the bracket 18.

  Here, the bracket 18 includes a thick plate portion 18A extending from the holder of the headlamp 10 toward the vehicle width inward direction with the vehicle vertical direction extending in the vehicle width direction, and a thick plate portion 18A extending from the thick plate portion 18A toward the vehicle width inward direction. The thin plate portion 18B fixed to the radiator support bracket 22 is thin, and the boundary line between the thick plate portion 18A and the thin plate portion 18B is more than the boundary line between the thick plate portion 18A and the headlamp 10 holder. The vehicle longitudinal rigidity is low.

  Further, the radiator support bracket 22 includes a support portion 22A that fixes and supports the thin plate portion 18B, and a stopper portion 22B that protrudes from the vehicle rear side end portion of the support portion 22A toward the vehicle width outer side. The stopper portion 22B faces the thick plate portion 18A with a predetermined distance in the vehicle front-rear direction, and gradually inclines toward the vehicle rear side toward the vehicle lower side.

  As shown in FIGS. 7 and 8, the vehicle width inner end portion 10E of the headlamp 10 is gradually inclined toward the vehicle front side toward the vehicle lower side, and the vehicle width inner end portion 10E of the headlamp 10 on the side surface 12D. The contact surface 12S (shown by hatching in FIG. 8) gradually inclines toward the vehicle front side toward the vehicle lower side.

  Next, the operation of this embodiment will be described.

  As shown in FIG. 7, when a load such as a light collision is input to the bumper 12 from the vehicle front direction to the vehicle rear direction by the damage ability evaluation or the like and the bumper 12 moves in the vehicle rear direction, 12D and the shelf surface 12C contact the headlamp 10. As shown in FIG. 6, a groove 12G is formed on the boundary line between the side surface 12D and the shelf surface 12C, and a groove 12F is formed on the shelf surface 12C. On the other hand, since no groove is formed on the boundary line between the side surface 12D and the upper general surface 12B, the rigidity of the shelf surface 12C in the vehicle front-rear direction is lower than the rigidity of the side surface 12D in the vehicle front-rear direction. . A notch 12H is formed at a corner between the side surface 12D and the shelf surface 12C.

  For this reason, the bumper 12 is first cracked along the groove 12G from the notch 12H as shown by an arrow B in FIG. As a result, the shelf surface 12C is separated from the side surface 12D, and the rigidity of the shelf surface 12C in the vehicle front-rear direction is further reduced, so that the bumper 12 is grooved as shown by the arrow B in FIG. 1 and the dotted line in FIG. Fold along 12F.

  Here, the rib 12R protruding from the shelf surface 12C abuts on the inclined surface 10A of the headlamp 10, and the downward force of the vehicle is applied from the inclined surface 10A. Therefore, the shelf surface 12C is refracted downward. Further, as shown in FIGS. 7 to 9, a downward vehicle force acts on the headlamp 10 from the contact surface 12 </ b> S between the side surface 12 </ b> D and the front surface of the headlamp 10.

  As a result, the load applied to the headlamp 10 is dominated by the load from the side of the vehicle, and the headlamp 10 is guided to the lower side of the vehicle, thereby suppressing the headlamp 10 from being pushed up by the bumper 12. And deformation and breakage of the fender 14 and the hood 16 can be suppressed.

  Further, as shown in FIGS. 10 and 11, when the brackets 18, 19, and 20 are damaged by a light collision applied to the headlamp 10 from the bumper 12, the bracket 18 includes the thick plate portion 18A and the thin plate portion. The thick plate portion 18A remains on the holder of the headlamp 10 by folding along the boundary line with 18B. Thereafter, the headlamp 10 is pushed in the vehicle rearward direction by the bumper 12, and the thick plate portion 18 </ b> A remaining on the holder of the headlamp 10 contacts the stopper portion 22 </ b> B of the radiator support bracket 22. As described above, since the stopper portion 22B is inclined toward the vehicle rear side toward the vehicle lower side, a vehicle downward force acts on the thick plate portion 18A from the stopper portion 22B. Thereby, even when a vehicle-upward load is input to the bumper 12, the vehicle-upward movement of the vehicle lamp inner side end portion of the headlamp 10 is suppressed.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It is clear to the contractor. For example, in the present embodiment, the lamp mounting structure of the present invention is applied to a headlamp, but the lamp mounting structure of the present invention can be applied to a tail lamp provided at the rear end of a vehicle. In that case, the shelf surface of the bumper is disposed on the rear side and the lower side of the ramp, and the side surface of the bumper is disposed on the rear side of the ramp and the inner side of the vehicle.

  Further, in the present embodiment, the shelf surface and the vehicle lower end portion of the ramp, and the side surface and the vehicle width inner end portion of the ramp are opposed to each other in the vehicle front-rear direction, but this is not essential in the present invention. For example, when a load is input from the vehicle front (or rear) lower side to the vehicle rear (or front) upper side with respect to the bumper, the shelf surface and the ramp are arranged in the vehicle front-rear direction before the bumper moves. Even if they are not facing each other, they face each other in the vehicle front-rear direction after the bumper moves, and the shelf surface may collide with the ramp. In such a case, the ramp can be applied to the vehicle by applying the present invention. The effect that the movement to the upper side can be suppressed can be acquired.

1 is a perspective view showing a lamp mounting structure according to an embodiment of the present invention as seen from the obliquely forward outer side of a vehicle. It is the perspective view seen from the vehicle slant front inner side which shows the lamp mounting structure which concerns on one Embodiment of this invention. It is a top view which shows the lamp mounting structure which concerns on one Embodiment of this invention. It is sectional drawing along the IV-IV line of FIG. FIG. 5 is a view taken in the direction of arrow V in FIG. 4. It is a VI arrow directional view of FIG. It is a VII line arrow directional view of FIG. It is a front view which shows the lamp mounting structure which concerns on one Embodiment of this invention. It is sectional drawing along the IX-IX line of FIG. It is a side view which shows the lamp mounting structure which concerns on one Embodiment of this invention. It is an II line arrow directional view of FIG.

Explanation of symbols

10 Headlamp (lamp)
10A Inclined surface 12 Bumper 12C Shelf surface 12D Side surface 12F Groove (Rigidity reducing means, first thin portion)
12G groove (rigidity reduction means, second thin part)
12H Notch (Rigidity reduction means)
18A Thick plate part (movement restriction means)
22B Stopper (movement restricting means)

Claims (6)

A lamp provided at one of the vehicle front end and the vehicle rear end;
A shelf surface disposed on either the vehicle front side or the vehicle rear side of the lamp and on the vehicle lower side, and a side surface disposed on the vehicle front side or the vehicle rear side of the lamp and on the vehicle width inner side. A bumper comprising: rigidity reducing means for lowering the rigidity of the shelf surface than the rigidity of the side surface;
A lamp mounting structure comprising:   2. The lamp mounting structure according to claim 1, wherein at least one of the side surface and the lamp is configured such that the lamp pushed by the side surface is guided to a vehicle lower side.   3. The lamp mounting according to claim 1, wherein an inclined surface that guides the shelf surface that pushes the lower end of the lamp to the lower side of the vehicle is formed at the lower end of the lamp of the vehicle. Construction.   The lamp mounting structure according to any one of claims 1 to 3, further comprising movement restricting means for restricting movement of the lamp to the upper side of the vehicle. The rigidity reducing means is
A notch formed on a boundary line between the shelf surface and the side surface;
A first thin portion formed in the vehicle width direction of the shelf surface;
The lamp mounting structure according to any one of claims 1 to 4, wherein the lamp mounting structure is provided. The rigidity reducing means is
The lamp mounting structure according to claim 5, further comprising a second thin portion formed on a boundary line between the shelf surface and the side surface.

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