JPH08310319A - Bumper for vehicle - Google Patents

Abstract

PURPOSE: To prevent the surface of a dumper from being discolored yellowish by the dropping of water from a tire at low cost in a vehicle dumper on which the spare tire is installed. CONSTITUTION: In a vehicle bumper on which a spare tire is installed, a step part 20 is formed on the upper surface of a bumper 3 at a position at which water adhered to the spare tire 1 drops, and a guide structure to guide so that water 4 dropped from the spare tire 1 does not flow out to the surface of the bumper 3 is formed in the step part 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper provided at the front and rear of a vehicle, and more particularly to a bumper for a vehicle in which a spare tire is mounted above the bumper.

[0002]

2. Description of the Related Art FIG. 3 is a rear perspective view of a conventional vehicle having a spare tire mounted on the rear portion of the vehicle body. As shown in FIG. 3, in an RV (Recreational Vehicle) vehicle or the like, a spare tire 1 is provided outside the vehicle body 2 in order to use the vehicle interior for multiple purposes and to improve the appearance of the vehicle body.
In particular, there are many types that are exposed and equipped on the back of the vehicle body.

Therefore, the rear bumper 3 is located below the spare tire 1, and the spare tire 1
If water adheres to the tire due to rain, car washing, or the like, the water that has traveled on the surface of the spare tire 1 will fall downward, and will fall on the rear bumper 3. Normally, a tire of a car contains a rubber anti-aging agent. Therefore, when water droplets 4 traveling on the surface of the spare tire 1 often hit the rear bumper 3, the bumper 3 is affected by the water containing the anti-aging agent. Will cause a yellowing portion 5 on the surface.

Moreover, such a problem is caused by the spare tire 1.
Is more prominent as it is an unused new product. As a countermeasure against such an adverse effect, a fluorine coating surface 6 is formed on the surface of the bumper 3 as shown in FIG. 4, or a fluorine film is formed on the upper surface and the vertical surface of the central portion of the bumper 3 as shown in FIG. 7
There is a means for protecting the bumper 3 by applying a surface treatment, such as by sticking or by plating 8 on the surface of the bumper 3 as shown in FIG.

Further, as shown in FIG. 7, a spare tire 1
There is a avoidance means in the structure in which the bumper 3 is recessed in the lower portion of the tire 1 to form a recess 9 so that the water droplets 4 from the above do not splash on the bumper 3. On the other hand, in many vehicles of this type, a rear bumper 3 also serves as a step because a gate is formed on the rear surface of the vehicle body so that the vehicle can easily enter and exit from the rear of the vehicle.

That is, in a vehicle of this type, as shown in FIG.
As shown in FIG. 9, a step surface 10 is formed at the center of the upper surface of the rear bumper 3 and is lowered by one step.
0, the step member 11 is attached to form the step portion 13 by fastening with a nut 12 or adhering with an adhesive (not shown). This step member 11
For example, as shown in FIG. 10, there is one in which a plurality of parallel grooves 14 are formed on a step surface, and such a thing can be formed by extrusion molding using a rubber material, a resin material or the like. . Alternatively, as shown in FIG. 11, there is one in which a large number of protrusions 15 are formed on the step surface, and such a thing can be formed by injection molding using a resin material or the like.

[0007]

However, there is a problem that the cost of the bumper surface coated with a fluorine film or a fluorine film adhered in the prior art is high, and the bumper surface is plated. Then, there is a problem that not only the cost becomes high but also the color is limited.
In addition, if a bumper is formed with a recess, the appearance may be deteriorated.

Further, in the case where the step member is mounted on the step surface, there is a problem that the bumper portion not covered with the step member causes yellowing. The present invention has been devised in view of such a problem, and prevents the water dripping from the spare tire from splashing on the surface of the rear bumper, thereby preventing yellowing of the bumper surface due to water dripping from the tire at low cost. It is an object of the present invention to provide a vehicle bumper that is made possible.

[0009]

Therefore, in the vehicle bumper of the present invention as set forth in claim 1, in a vehicle bumper equipped with a spare tire above, water adhering to the spare tire on the upper surface of the bumper is A step portion is formed at the dropping position, and a guide structure for guiding the water dropped from the spare tire so as not to flow out to the surface of the bumper is formed in the step portion. .

A vehicle bumper according to a second aspect of the present invention is
The structure according to claim 1, wherein the guide structure has a drain hole for guiding the water from the surface of the step portion to the inside of the bumper. A vehicle bumper according to a third aspect of the present invention is the vehicle bumper according to the first or second aspect, wherein the guide structure is formed on an outer periphery of the step portion and regulates the outflow of the water from the step portion to the outside. It is characterized by having a dam part that runs.

A vehicle bumper according to a fourth aspect of the present invention is
The structure according to claim 2 or 3 is characterized in that the guide structure has an inclined surface formed on the surface of the step portion to guide the water to the drain hole. According to a fifth aspect of the invention, there is provided the vehicle bumper according to the first aspect, wherein the bumper is a rear bumper arranged at a rear portion of the vehicle.

A vehicle bumper according to a sixth aspect of the present invention comprises:
The configuration according to claim 1 is characterized in that the step portion is formed of a resin material. According to a seventh aspect of the present invention, in the vehicle bumper according to the sixth aspect, the bumper is made of a resin material, and the step portion is integrally formed with the bumper as a part of the bumper. It has a feature.

[0013]

In the vehicle bumper according to the first aspect of the present invention, when water drops from the spare tire to the step portion formed on the upper surface of the bumper, this water is passed through the guide structure formed in the step portion. Is guided so that it does not flow to the surface of. Therefore, the water containing the anti-aging agent of the spare tire does not splash on the surface of the bumper, and yellowing does not occur on the surface of the bumper.

In the vehicle bumper according to the second aspect of the present invention, the water dropped from the spare tire to the step portion is guided to the inside of the bumper through the drain hole, so that the water on the step portion surface reaches the bumper surface. It is drained promptly without flowing out. In the vehicle bumper of the present invention as defined in claim 3, since the dam portion is provided on the outer periphery of the upper surface of the step portion, the water on the upper surface of the step portion does not spill out to the outside, and the water dropped from the spare tire flows out to the bumper surface. Will not do.

In the vehicle bumper of the fourth aspect of the present invention, the water is guided to the drain hole through the inclined surface formed on the surface of the step portion, so that the water does not collect on the step surface. Become. Therefore, the water dropped from the spare tire is prevented from flowing out to the bumper surface. In the vehicle bumper of the fifth aspect of the present invention, since the bumper is a rear bumper provided at a rear portion of the vehicle, the spare tire is installed on the rear bumper. Such a configuration is widely used as a structure for mounting a spare tire on the outside of a vehicle, but in such a configuration, the water dropped from the spare tire is prevented from flowing out to the surface of the rear bumper.

In the vehicle bumper of the sixth aspect of the present invention, since the step portion is formed of the resin material, the step member having the dam, the inclined surface, the drainage hole, etc. can be easily manufactured. In the vehicle bumper of the present invention according to claim 7,
Since the bumper is made of a resin material and the step portion is integrally formed as a part of the bumper, it is easy to manufacture the entire bumper.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show a vehicle bumper as one embodiment of the present invention. FIG. 1 shows a rear bumper and a part of a spare tire. 2 is a cross-sectional view taken along the line AA of FIG. 1, and in FIGS. 1 and 2, the same reference numerals as those in FIGS. 3 to 11 indicate almost the same parts.

In FIG. 1, 1 is a spare tire mounted on the rear surface of the vehicle body 2, and 3 is a rear bumper located below the spare tire 1 and below the rear edge of the vehicle body 2. is there. It should be noted that this vehicle is configured as a multipurpose vehicle such as an RV vehicle as shown in FIG. 3, and a spare tire 1 is provided so as to be exposed on the back surface of a vehicle body 2. In addition, it is possible to easily carry in and out luggage from the rear of the vehicle body, to clean the roof portion of the vehicle body, and in vehicles with a roof carrier on this roof portion, to carry luggage in and out of this roof carrier. Further, a step portion 20 is formed on the upper surface of the central portion of the rear bumper 3. The step portion 20 of this embodiment is formed so that the upper surface of the central portion of the rear bumper 3 is lowered by one step from the upper surfaces of the left and right end portions.

The step portion 20 includes a step surface 21 formed in the central portion of the rear bumper 3 and the step surface 2.
A step member 22 made of a synthetic resin such as polypropylene is mounted on the first member 1 by tightening a nut (not shown) or adhering with an adhesive (not shown).
The step member 22 is arranged at a position (generally, vertically below the spare tire 1) that can reliably receive the water droplets 4 dripping from the spare tire 1 when the spare tire 1 is washed with water. In addition, it is a plate-like member having a size capable of reliably receiving the water droplet 4.

The step portion 20 is provided with a guide structure 23 for guiding the water dropped from the spare tire 1 so as not to flow out to the surface of the bumper 3. The guide structure 23 according to the present embodiment is formed in the step member 22 and the step portion 20 by forming a dam portion (weir) 24 that is formed so as to project upward on the peripheral portion of the surface (upper surface) of the step member 22. It is composed of a drain hole 25 for guiding the water on the member 22 to the inside of the bumper 3, and a guide groove 26 formed on the step member 22 for guiding the water on the step member 22 to the drain hole 25. .

That is, on the inside surrounded by the dam portion 24,
A plurality of rib-shaped protrusions 27 are formed. These rib-shaped projections 27 function as a slip stopper when the step member 22 is placed on the step member 22, and extend in a plurality of rows in the longitudinal direction of the step member 22 (here, the vehicle width direction). It is provided and is further divided into a plurality of columns.
Therefore, the groove portion 26A is formed between each row of the rib-like protrusions 27, and the groove portion 26B is also formed between the rib-like protrusions 27 forming each row. These groove portions 26A, 2
6B functions as the guide groove 26.

A plurality of water drain holes 25 are provided at required positions of these guide grooves 26A and 26B. The drain hole 25 is formed by a hole portion 25A formed in the step member 22 and a hole portion 2 formed in the step portion 20 of the bumper 3.
5B and 5B are aligned with each other, and the water that has flowed into the drain hole 25 is discharged from the inside of the bumper 3 below the bumper 3 and does not flow out to the surface of the bumper 3.

Further, some or all of the guide grooves 26A and 26B are formed as inclined surfaces which are gently lowered toward the drainage hole 25 in order to guide the water toward the drainage hole 25. In this embodiment, the drainage hole 25 is formed in the step portion 20.
The guide groove 26B, which is disposed near the rear edge and extends in the front-rear direction of the vehicle, is formed to be slightly inclined rearward. Further, it is desirable that the guide groove 26A extending in the vehicle width direction gradually descends toward the intersection with the guide groove 26B.

Of course, the position of the drainage hole 25 is not limited to this, and the drainage hole 25 can be provided at a desired position inside the dam portion 24, and in any case, It is desirable to incline some or all of the guide grooves 26A and 26B so as to guide them toward the drain hole 25. In addition, in this embodiment, the rib-shaped projection 2 is used as a slip stopper.
7 is provided, the slip stopper is not limited to this, and although not shown, a large number of circular or square protrusions may be provided. Even when the rib-like protrusions 27 are provided, they are staggered. The rib-shaped protrusions 27 may be combined with each other.

Further, in this embodiment, as shown in FIG.
The flange portion 28 is formed downward from the hole portion 25A of the step member 22 to reliably guide the drainage to the inside of the rear bumper 3 immediately below the drainage hole 25, and a part of the drainage is discharged to the step member 22. The rear bumper 3 does not leak to the front surface side of the rear bumper 3 through a gap between the step portion 20 and the rear bumper 3.

Since the vehicle bumper as one embodiment of the present invention is constructed as described above, the water dropped along the spare tire 1 arranged above the rear bumper 3 is
The guide groove 26A, 2 is received by the surface of the step member 22 of the step portion 20 and, as shown by the arrows in FIGS.
The water flows from 6B through the drainage hole 25, passes through the inside of the rear bumper 3, and quickly flows out to the lower outside.

In particular, the dam 24 formed on the outer periphery of the step member 22 reliably prevents the water received by the surface of the step member 22 from flowing to the surface of the rear bumper 3. Therefore, due to rain, car washing, or the like, the water droplets 4 containing the tire anti-aging agent that travel along the spare tire 1 and do not flow along the surface of the rear bumper 3 may yellow the surface of the rear bumper 3. Is avoided, and the appearance of the vehicle can be kept beautiful.

Since the step portion 20 is also used as a structure for preventing the water droplets 4 from flowing out to the rear bumper 3, yellowing of the surface of the rear bumper 3 can be prevented while suppressing an increase in cost. In particular, since the guide grooves 26A and 26B quickly drain the water on the surface of the rib-shaped projection 27, there is also an advantage that the rib-shaped projection 27 can function reliably as a slip stopper even during rainfall.

The rear bumper 3 can be made of resin, and the rear bumper 3 and the step member 22 can be integrally formed. In this case, too, the water dropped from the spare tire 1 is on the surface of the bumper 3. It is necessary to provide a guide structure 23 for guiding so as not to flow out to. Also,
As the guide structure 23, a dam that prevents water from flowing out to the surroundings from above the step member, a guide groove that guides water to a lower portion through a projection that serves as a slip stopper for the foot, and a guide groove are provided. It is desirable to provide a drainage hole for draining water, and further, it is desirable that the guide groove be configured as an inclined surface that is inclined to the drainage hole.

However, the guide structure 23 includes a dam, a guide groove,
Even if it is not necessary to provide all the drainage holes and the inclined surface where the guide groove is inclined, it is possible to provide some of these if the water dropped from the spare tire 1 can be guided so as not to flow out to the surface of the bumper 3. You can just choose Further, the step portion may be formed of a rubber material, a metal material or the like in addition to the resin material.

Further, when the step portion is formed of a resin material, there is an advantage that the required color can be given by the resin priming to greatly reduce the cost.

[0032]

As described in detail above, the first aspect of the present invention
According to the vehicle bumper described above, in a vehicle bumper equipped with a spare tire above, a step portion is formed at a position on the upper surface of the bumper where water adhering to the spare tire drops, and the step portion is formed. In the configuration, a guide structure is formed to guide the water dropped from the spare tire so as not to flow out to the surface of the bumper, so that the water dropped from the tire does not flow along the surface of the bumper. Even if the dripped water contains the rubber anti-aging agent compounded in the tire, there is no possibility of causing yellowing on the bumper surface, and the appearance of the vehicle can be kept beautiful. In addition, since the yellowing of the bumper surface is prevented by the other functional component such as the step portion, the effect can be obtained at an extremely low cost.

According to the vehicle bumper of the second aspect of the present invention, in the configuration of the first aspect, the guiding structure guides the water from the surface of the step portion to the inside of the bumper. With this configuration, the water dripping on the surface of the step part flows inside the bumper and flows out to the outside, so that it does not reach the bumper surface and the discoloration of the bumper surface is prevented, making the appearance of the vehicle beautiful. There is an effect that can be retained.

According to the vehicle bumper of the third aspect of the present invention, in the configuration of the first or second aspect, the guide structure is formed on the outer periphery of the step portion and is extended from the step portion to the outside. With the configuration that has a dam part that regulates the outflow of water, the water dripping on the step part is blocked by the dam part and does not flow out to the bumper surface side, discoloration of the bumper surface is prevented and the appearance of the vehicle is kept beautiful There is an effect that can be done.

According to the vehicle bumper of the fourth aspect of the present invention, in the configuration of the second or third aspect, the guide structure is formed on the surface of the step portion to supply the water to the drain hole. With the configuration that provides the inclined surface to guide, the water dropped on the step part is quickly collected and drained to the drain hole, the water does not accumulate on the step part, and the outflow of water to the bumper surface side is avoided, Discoloration on the bumper surface is prevented, and the appearance of the vehicle can be kept beautiful.

According to the vehicle bumper of the fifth aspect of the present invention, in the configuration of the first aspect, the bumper is a rear bumper arranged at a rear portion of the vehicle.
The effect of preventing water from leaking from the spare tire to the surface of the rear bumper, which is widely used as a spare tire mounting structure on the outside of the vehicle, and preventing the rear bumper from yellowing, and maintaining the appearance of the rear part of the vehicle body beautifully There is.

According to the vehicle bumper of the sixth aspect of the present invention, in the configuration of the first aspect, the step portion comprises:
Since it is made of resin material, it can be easily molded, and the desired color can be generated at a low cost by depositing the required color. There is an advantage that can be greatly advanced. According to the vehicle bumper of the present invention described in claim 7, in the structure of claim 6, the bumper is formed of a resin material, and the step portion is integrally formed with the bumper as a part of the bumper. With the configuration, there is an advantage that the cost of the vehicle can be further reduced.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a rear bumper and a spare tire showing an embodiment of a vehicle bumper according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a rear perspective view of a conventional vehicle.

FIG. 4 is a perspective view of a conventional bumper whose surface is coated with fluorine.

FIG. 5 is a perspective view of a conventional bumper in which a fluorine film is attached to a part of the surface.

FIG. 6 is a perspective view of a conventional bumper whose entire surface is plated.

FIG. 7 is a perspective view of a conventional bumper having a shape in which a central portion is recessed in a depth direction.

FIG. 8 is a perspective view of a rear bumper according to a conventional example.

9 is a sectional view taken along the line BB of FIG.

FIG. 10 is a partial perspective view of a conventional rubber step member.

FIG. 11 is a partial perspective view of a conventional resin step member.

[Explanation of symbols]

 1 Spare Tire 2 Vehicle Body 3 Rear Bumper 4 Water Drop 5 Yellowing Part 6 Fluorine Coating Surface 7 Fluorine Film 8 Plating 9 Recess 10 Step Surface 11 Step Member 12 Nut 13 Step Part 14 Parallel Ridge Part 15 Square Projection 20 Step Part 21 Step Surface 22 Step Member 23 Guide Structure 24 Dam Part (Weir) 25 Drainage Hole 26 Guide Groove 26A Groove Part (Guide Groove) 26B Groove Part (Guide Groove) Constituting a System Slope 27 Rib-like Protrusion 28 Flange Part

Claims (7)

[Claims] 1. In a vehicle bumper equipped with a spare tire above, a step portion is formed at a position on the upper surface of the bumper where water adhering to the spare tire drops, and the spare portion is provided in the step portion. A bumper for a vehicle, wherein a guide structure is formed to guide the water dropped from the tire so as not to flow out to the surface of the bumper. 2. The vehicle bumper according to claim 1, wherein the guide structure has a drain hole for guiding the water from the surface of the step portion to the inside of the bumper. 3. The guide structure according to claim 1, further comprising a dam portion formed on an outer periphery of the step portion to regulate the outflow of the water from the step portion to the outside. Bumper for vehicle described. 4. The vehicle according to claim 2, wherein the guide structure has an inclined surface formed on the surface of the step portion to guide the water to the drain hole. Bumper. 5. The vehicle bumper according to claim 1, wherein the bumper is a rear bumper arranged at a rear portion of the vehicle. 6. The vehicle bumper according to claim 1, wherein the step portion is formed of a resin material. 7. The bumper for vehicles according to claim 6, wherein the bumper is made of a resin material, and the step portion is integrally formed with the bumper as a part of the bumper.