JP2014136521A - Front underrun protector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a front underrun protector which reduces a formation cost of a material covering a protector body, and is rich in design flexibility.SOLUTION: A front underrun protector 1 which is connected to a front end portion of a vehicle body skeleton portion such as a pair of side members 6 that are arranged along both sides in a vehicle width direction of an automobile includes: a protector body 2 that extends in the vehicle width direction and has an outline substantially quadrangular shape; and a covering material 3 covering the surface of a vehicle front face portion 2a, and continuous vehicle body upper and lower surface portions 2b and 2c on the vehicle front face portion 2a in the protector body 2. The covering material 3 is formed by forming a plate material formed of a synthetic resin into a U-shaped cross section, and thereby the vehicle front face portion 2a and the vehicle body upper and lower surface portions 2b and 2c of the protector body 2 are continuously covered.

Description

  The present invention relates to a front underrun protector that is disposed below a front bumper particularly in a large vehicle such as a truck.

  This type of front underrun protector is intended to protect passengers by preventing a passenger vehicle that has collided under the front bumper of the truck from entering under the front bumper of the truck, for example. This is obliged to be established by law.

  From this point, in a vehicle such as a truck, for example, as shown in FIG. 7, the front under-run protector a is shown in FIG. 8 so as to be disposed below the front bumper c installed on the front surface of the truck b. As shown, the bracket d attached to the rear side is attached to the stay f with bolts and nuts and the like, and the stay f is attached to the side member e, which is a vehicle body skeleton part disposed along both sides of the truck b in the vehicle width direction. By doing so, it is arranged and installed in a state extending in the vehicle width direction (see, for example, Patent Documents 1 to 3).

  The front underrun protector a is mainly composed of a protector body a-1 made of a metal such as aluminum or iron so as to have a predetermined strength so as to prevent a passenger car or the like that has collided from head-on. The edge-shaped opening is closed using a cap h having a separate structure to avoid danger due to exposure of the edge (see FIG. 9).

  And since the protector main body a-1 is located below the front bumper c, it will be visually recognized from the front of the track b in a dizzy state, so as not to affect oncoming vehicles and pedestrians. In addition, it is necessary to apply an antiglare treatment to the visually recognized part.

  Therefore, as shown in FIGS. 8 and 9, the conventional front underrun protector has a front body portion a-1a and a front portion a-1a which are opposite to the vehicle body in a long protector body a-1 having a substantially rectangular outer shape. The coating layer portion a-2 having an antiglare function is applied to the surfaces of the upper surface portion a-1b and the lower surface portion a-1c.

Japanese Patent Laid-Open No. 2003-11753 JP 2009-184619 A JP 2012-224275 A

  In order to form the coating layer portion a-2 on the surface of the protector main body a-1 in the conventional front underrun protector a configured as described above, a coating film is applied by cationic coating or the like.

  The formation of the coating layer part a-2 by such cationic coating is because the protector main body a-1 is a long one extending in the vehicle width direction. The formation cost of a-2 will be very high, and many cationic coatings themselves will be limited to black coating. Therefore, there is no design freedom by limiting the coating color, and users will need a variety of front view of automobiles. Was a hindrance to

  SUMMARY OF THE INVENTION In view of such unsolved problems in the prior art, an object of the present invention is to provide a front underrun protector that reduces the cost of forming a coating layer portion on a protector body and increases design flexibility. Yes.

  A front underrun protector according to the present invention is a front underrun protector connected to a front end portion of a vehicle body skeleton such as a pair of side members disposed along both sides of a vehicle in the vehicle width direction. The run protector is coated on the surface of the protector main body extending in the vehicle width direction and having a substantially rectangular outer shape, and at least the front surface of the protector main body and the upper and lower surfaces of the vehicle body continuous to the front surface of the vehicle body. The protective cover is formed by forming a synthetic resin plate with a U-shaped cross section so that the front surface of the protector body and the upper and lower surfaces of the protector body are continuously fitted and covered. It is characterized by having constituted so.

  With this configuration, the present invention is formed by press molding of a plate material or the like because the protector body is covered with a coating material in which a synthetic resin plate material is formed in a U-shaped cross section instead of the conventional coating layer portion. It is only necessary to fit and coat the protector body, and the cost of forming the coating material can be greatly reduced compared to conventional cationic coating. A color can be selected and a pattern can be applied to the surface, so that the degree of freedom in design can be expanded. .

  Further, according to the present invention, a cap portion that closes both side opening ends of the protector body is formed integrally with the covering material.

  With this configuration, the present invention is formed by integrally forming the cap portion that closes the edge-shaped side opening ends of the protector body integrally with the covering material, so that compared to the case of using a separate cap portion in the past. Cost reduction can be achieved.

  Further, according to the present invention, the protector body has an integral structure extending in the vehicle width direction.

  With this configuration, the present invention can reduce the number of parts and increase the strength at the time of a frontal collision by integrally configuring the covering material.

  Further, according to the present invention, the covering material is divided into two parts by cutting the substantially central portion in the vehicle width direction, and the cut ends of the two divided covering material pieces are abutted and connected to each other. It is composed.

  With such a configuration, the present invention can be configured by splitting the covering material into two parts and joining the same shape of the divided covering material pieces in a staggered manner on the left and right sides. In addition, the press mold can be miniaturized, and the manufacturing cost can be reduced.

  Moreover, this invention makes the said covering material into the three division structure which consists of a right-and-left both division | segmentation covering material piece and a center division | segmentation coating | covering material piece by cut | disconnecting the said vehicle width direction two places, The cut end portions of the left and right divided covering material pieces are brought into contact with and connected to a pair of cut end portions existing at both end portions, and are integrally configured.

  With this configuration, the present invention can reduce the manufacturing cost by reducing the size of the press mold and unify the shape of the centrally divided covering material piece that normally extends in a straight line. The left and right split covering material pieces that normally need to be bent to conform to the vehicle body shape with respect to the central split covering material piece can be selectively applied to large, medium or small cars by changing the length dimension. From this aspect, the production cost can be expected to be reduced.

  Since this invention covers the protector body with a covering material in which a synthetic resin plate material is formed in a U-shaped cross section instead of the conventional covering layer portion, it can be formed by press molding of the plate material, Fitting and covering the protector body is sufficient, and compared to conventional cationic coating, the cost of forming the coating material can be greatly reduced, and it is never limited to black, and various colors can be selected. At the same time, a pattern or the like can be applied to the surface, and the degree of freedom in design can be expanded.

1 is a perspective view depicting a front underrun protector according to a first embodiment of the present invention. It is an expansion perspective view drawn from the W arrow view of FIG. It is XX sectional drawing on which the state which the front underrun protector shown in FIG. 1 was attached to the vehicle body was drawn. It is the perspective view which drawn the coating | covering material which comprises the front underlamp protector which concerns on 2nd Example of this invention. It is the partial front view drawn from the arrow Y direction of FIG. It is the perspective view which decomposed | disassembled and drew the coating | covering material which comprises the front underlamp protector which concerns on 3rd Example of this invention. It is the perspective view which drew typically the vehicle body front part of the truck which is a car equipped with the front underrun protector concerning the prior art. It is the longitudinal cross-sectional view drawn by expanding the inside of the Z circle in FIG. It is the perspective view which drawn the front under-run protector in FIG.

  The front underrun protector according to the embodiment of the present invention is configured to reduce the cost of forming a covering material on the protector body and to increase the degree of design freedom.

  Next, a front underrun protector according to an embodiment constructed by adopting the present invention will be described with reference to the drawings. In the figure, the front direction of the automobile body is indicated by arrow F, the rear direction is indicated by arrow B, the left direction is indicated by arrow L, and the right direction is indicated by arrow R.

  First, a first embodiment according to the present invention will be described with reference to FIGS. The front underrun protector 1 according to the first embodiment of the present invention has a long structure extending along the left and right directions L and R of the vehicle body, and is made of a metal plate such as aluminum or iron. Protector body 2 having a substantially rectangular shape by press molding or the like, a front surface portion 2a against the vehicle body in the protector body 2, a top surface portion 2b opposite the vehicle body that is continuous with the front surface portion 2a, and a bottom surface portion 2c that covers the vehicle body It is composed of the material 3.

  The protector body 2 is bent in the vehicle body rearward direction at both ends of the central side portion 2-1, with the substantially straight central side portion 2-1 at the center so as to match the front shape of the automobile. The left side portion 2-2 and the right side piece 2-3 are formed so as to be continuous together. Then, the cross-sectional shape of the protector main body 2 is so shaped as to form an “eye” shape as shown in FIG. 2 or a “day” character shape (not shown) so as to enhance the strength of the protector main body 2. It is composed.

  The covering material 3 is formed by forming a synthetic resin plate material into a U-shaped cross section by press molding or the like, so that the protector body 2 has a front surface portion 2a, a front surface portion 2b, and a lower surface portion 2c. Is fitted to the protector main body 2 from the opening end side thereof, and, as shown in FIG. 2, clip fastening or rivets to the upper body portion 2b and the lower surface portion 2c of the protector body 2 It is fixedly attached to the protector body 2 at a plurality of locations by, for example, hammering by means of 4.

  Further, since the protector main body 2 is formed by extrusion molding or the like, the protector main body 2 is configured by closing the opening end 2-4 having an edge shape with a cap portion 9 formed integrally with the covering material 3.

  Further, the protector body 2 has a bracket 5 attached to the rear surface portion 2d of the protector body 2 by welding or bolts and nuts. The bracket 5 is fastened to the stay 7 with bolts and nuts 8. The stay 7 is attached to the front end portions of a pair of side members 6 installed along the left and right sides of the vehicle body so as to form a vehicle body skeleton. The underrun protector 1 is attached to the side member 6.

  As a result, the front under-run protector 1 is located at the lower part of the front bumper disposed on the front part of the automobile such as a truck (not shown), and serves to prevent the oncoming vehicle from entering under the frontal collision. become.

  The front underrun protector 1 according to the first embodiment of the present invention configured as described above is formed by forming the covering material 3 by forming a synthetic resin plate material in a U-shaped cross section. It can be formed by press molding or the like, and can be configured by fitting and covering the protector main body 2, so that the formation cost of the covering material 3 can be greatly reduced as compared with conventional cationic coating or the like. At the same time, the color is not limited to black, and various colors can be selected and a pattern or the like can be applied to the surface, so that the degree of freedom in design can be expanded.

  Further, the front underrun protector 1 according to the first embodiment is configured by closing both side opening end portions 2-4 of the protector body 2 by cap portions 9 formed integrally with the covering material 3, Compared with the case of using a separate cap in the prior art, this is advantageous in terms of cost.

  4 and 5 show a covering material 3 constituting a front under-run protector 1 according to a second embodiment of the present invention.

  According to FIGS. 4 and 5, the covering material 3 according to the second embodiment of the present invention is divided into two parts by cutting a substantially central part in the vehicle body width direction (vehicle body lateral direction R 方向 L). The divided covering material pieces 31 and 32 are formed.

  Of the pair of divided covering material pieces 31 and 32, the divided covering material piece 31 disposed on the right side R of the vehicle body is cut off at the upper side, as clearly shown in FIG. The split covering material piece 32 which is formed in a staircase shape and is disposed on the left side L of the vehicle body has a staircase shape in which the lower end side is notched as shown in FIG. Is formed. Then, the cut end portion 31a and the cut end portion 322a formed stepwise with each other are the same if the two divided covering material pieces 31 and 32 are overlapped so that the two cut end portions 31a and 32a face each other in the same direction. It is formed to have a shape.

  Accordingly, the cut end portions 31a and 32a that are alternately cut out in a staircase shape are connected in a state where the cut end portions 31a and 32a are abutted with each other, so that the covering material 3 having a substantially integrated structure is configured.

  The protector main body 2 which is substantially integrated by connecting the divided covering material pieces 31 and 32 is connected to the front surface portion 2a of the vehicle body by the covering material 3 having the same configuration as that of the first embodiment. The upper surface portion 2b of the vehicle body and the lower surface portion 2c of the vehicle body are covered, and the opening end 2-4 is closed by the cap portion 9 formed integrally with the covering material 3.

  According to the second embodiment configured as described above, since the covering material 3 is formed by forming a synthetic resin plate material in a U-shaped cross section, as in the first embodiment, the plate material. It can be formed by press molding or the like, and can be configured by fitting and covering the protector main body 2, which greatly increases the cost of forming the coating material 3 compared with the case of forming a coating film by conventional cationic coating or the like. In addition, the cap portion is not limited to black and can be applied with various patterns, and the degree of freedom in design can be expanded. 9, the side opening ends 2-4 of the protector main body 2 are closed, which is advantageous in terms of cost as compared with the case of using a separate cap.

  In addition, in the second embodiment, the split covering material pieces 31 and 32 having a two-split configuration are formed by alternately butting and joining the cut end portions 31a and 32a in the same shape. From the above, both the divided covering material pieces 31 and 32 can be formed in the same shape. As a result, the same press mold can be used, and the press mold can be reduced in size. Cost can be reduced.

  Furthermore, the covering material according to the second embodiment can be applied to a large vehicle, a medium-sized vehicle, or a small vehicle having different vehicle widths by appropriately selecting and changing the positions of the cut end portions of the both divided covering material pieces 31 and 32. .

  FIG. 6 shows a third embodiment of the present invention.

  The covering material 3 according to the third embodiment is cut at two places in the vehicle width direction (the vehicle body left-right direction R⇔L direction) to make the center-divided covering material piece 33 the center, and to the left of the both ends. The covering piece 34 and the right divided covering piece 35 are integrally connected. Such a connecting shape is such that the facing cut end portions 34a and 35a of the left and right divided covering material pieces 34 and 35 are brought into contact with a pair of facing cut end portions 33a existing at both ends of the central divided covering material piece 33, respectively. In this state, the covering material 3 is integrally formed by connecting by welding or adhesion.

  According to the third embodiment configured as described above, since the covering material 3 is formed by forming a synthetic resin plate material in a U-shaped cross section, as in the first embodiment, the plate material. It can be formed by press molding or the like, and can be configured by fitting and covering the protector body 2, so that the coating layer portion 3 is formed as compared with the case where the coating film is formed by conventional cationic coating or the like. The cost can be greatly reduced, and it is never limited to black, and various colors can be selected and patterns can be applied to the surface, thereby increasing design flexibility. In addition, since the cap portion 9 formed integrally with the covering material 3 is closed by closing both side opening ends 2-4 of the protector main body 2, a conventional separate cap is provided. As compared with the case where there becomes cost effective.

  In addition, the third embodiment, like the second embodiment, can reduce the manufacturing cost by reducing the size of the press mold and is usually a centrally divided covering material extending linearly. By changing the shape of the piece 33 or by appropriately changing the shapes of the left and right divided covering material pieces 34 and 35, it is possible to deal with large vehicles, medium-sized vehicles or small vehicles having different vehicle widths.

  In the third embodiment, similarly to the second embodiment described above, the cut end portion 34a of the left divided covering material piece 34, the cut end portion 35a of the right divided covering material piece 35, and the central divided covering material. The cut end portions 33a and 33b of the piece 33 may be formed in a stepped step portion so as to be joined to each other.

  The present invention described above is disposed and installed below the front bumper particularly in large vehicles such as trucks because it reduces the cost of forming the covering material on the protector body and increases the degree of design freedom. It can be said that it is suitable for a front underrun protector.

1 Front underrun protector 2 Protector body
2a Car body wash
2b Upper side of the car body
2c Lower side of car body
2-4 Open end
31, 32 pieces of covering material
33 Center division covering piece
34 Left division covering material piece
35 Right division covering material piece 3 Covering material 9 Cap part

Claims (5)

  A front underrun protector connected to a front end portion of a vehicle body skeleton such as a pair of side members arranged along both sides in a vehicle width direction of an automobile, the front underrun protector extending in the vehicle width direction. A protector main body that has a substantially rectangular outer shape, and a covering material that covers at least a front surface portion of the protector main body and a top surface portion of the car body that is continuous with the front surface portion of the car body. The covering material is formed so as to continuously fit and cover the front body portion of the protector body and the upper and lower surfaces of the protector body by forming a synthetic resin plate material in a U-shaped cross section. Front underrun protector.   The front under-run protector according to claim 1, wherein a cap portion that closes both ends of the protector body is integrally formed with the covering material.   The front underrun protector according to claim 1 or 2, wherein the protector main body has an integrated configuration extending in the vehicle width direction.   The protector body has a two-divided configuration by cutting the substantially central portion in the vehicle width direction, and is configured by integrally connecting the cut end portions of the two divided covering material pieces together. The front underrun protector according to claim 1 or 2.   The protector main body has a three-part configuration composed of a left and right divided covering material piece and a central divided covering material piece by cutting two places in the vehicle width direction, and exists at both ends of the central divided covering material piece. The front underrun protector according to claim 1 or 2, wherein the cut end portions of the left and right split covering material pieces are abutted and connected to a pair of cut end portions, respectively.

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