JP6558929B2 - Car front bumper - Google Patents

Description

  The present invention relates to a front bumper of an automobile, and more particularly to a vehicle that can protect a pedestrian with a simple structure.

  A conventional automobile front bumper will be described with reference to the front bumper of the vehicle body front structure shown in FIG. FIG. 2 shows the front body structure of the vehicle body with the front bumper facer 10 removed and the front bumper facer 10, the hood 2, and the front fender 6 shown in phantom. In the front part of the vehicle body, a front side frame 20 extending in the vehicle longitudinal direction on both the left and right sides in the vehicle width direction, a crash can 22 provided at the front end of the front side frame 20, and a front side frame 20 An apron reinforcement 24 provided above is provided.

  On the inner side in the vehicle width direction of the pair of front side frames 20, an engine structure such as an engine 26 and a transmission 28, and auxiliary equipment 30 such as a battery are disposed. Further, a suspension tower 31 that supports a spring, a damper, and the like of a front suspension (not shown) is formed adjacent to the front side frame 20 and the apron reinforcement 24.

  A bumper reinforcement 32 extending in the vehicle width direction and extending in an arc shape in a plan view is provided at the front end of the pair of front side frames 20 (the front end of the crash can 22), and the bumper reinforcement. 32, an EA (collision energy absorption) member 34 that is attached to the front side of the vehicle 32 and extends in an arc shape in the vehicle width direction, that is, a shock absorbing member 34 for protecting a leg of a pedestrian or the like is provided. , See Patent Document 1).

JP 2008-0137591 A

  The above-described conventional vehicle body front structure has the following points to be improved. In the conventional vehicle body front part structure, it is necessary to arrange the shock absorbing member 34 for protecting the pedestrian, and there is a point to be improved that the assembling work becomes complicated and the cost is increased.

  Therefore, an object of the present invention is to provide a front bumper of an automobile that can be easily assembled and can protect a pedestrian at a low cost.

  Means for solving the problems in the present invention and the effects of the invention will be described below.

A front bumper of a vehicle according to the present invention is a front bumper of a vehicle having bumper reinforcement in front of the vehicle, and is a front bumper of the vehicle having bumper reinforcement in front of the vehicle, and has an outer surface of the front portion of the vehicle. A front bumper exterior part to be formed, a front bumper exterior part having a predetermined opening, a transverse member formed integrally with the front bumper exterior part, fixed to the front of the bumper reinforcement, and the opening A transverse member formed so as to cross the vehicle in a lateral direction, a longitudinal member formed integrally with the front bumper exterior portion and the transverse member, and fixed to the front of the bumper reinforcement, and the opening is formed in the vehicle vertically longitudinal member which is formed to be vertical grill attached to the opening of There are, with a grill, which is fixed in front of the cross member and the longitudinal member.

  Thereby, since it is not necessary to assemble the shock absorbing member for the purpose of pedestrian protection together with the front bumper, the assembling work is easy and the pedestrian can be protected at low cost. Moreover, even when a large opening is formed in the bumper exterior portion, the mounting rigidity of the bumper exterior portion and the grill can be improved.

1 is a perspective view of a vehicle body structure 100 for a passenger car that is an embodiment of a vehicle body structure for an automobile according to the present invention. It is a figure which shows the vehicle body structure of the conventional motor vehicle.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  A front bumper 100 (hereinafter referred to as a front bumper 100) for a passenger car, which is an embodiment of a front bumper for an automobile according to the present invention, will be described below. The front bumper 100 is located in front of the vehicle, forms the appearance of an automobile, and absorbs impact force caused by a collision in front of the vehicle. A radiator grill RG for attaching a radiator and a bumper reinforcement RF attached to the radiator grill are disposed at the front of the vehicle.

  A perspective view of the front bumper 100 is shown in FIG. The front bumper 100 includes a front bumper exterior 101, a transverse member 103, a longitudinal member 105, and a mesh grill 107. The front bumper exterior portion 101 has a grille opening 101a formed substantially at the center when viewed from the front.

  The front bumper exterior portion 101 has a shape that forms an external design of the front portion of the automobile. The front bumper exterior portion 101 is formed of a resin such as PP (polypropylene).

  The transverse member 103 is formed by integral molding with the front bumper exterior portion 101. The cross member 103 is disposed so as to cross the grille opening 101a of the front bumper exterior 101. Note that the cross member 103 is formed at the position of the bumper reinforcement RF when the front bumper 100 is attached to the front portion of the vehicle when integrally molded with the front bumper exterior portion 101.

  The transverse member 103 has bumper fixing recesses 103a, 103b, and 103c for fixing to the bumper reinforcement RF. The bumper fixing recess 103a has a concave shape that is recessed from the vehicle front side to the rear side of the cross member 103. A bolt insertion hole for inserting a fixing bolt for fixing the cross member 103 and eventually the front bumper exterior portion 101 is formed at the bottom of the bumper fixing recess 103a. The bumper fixing recesses 103b and 103c are the same as the bumper fixing recess 103a. The transverse member 103 is positioned in front of the bumper reinforcement by fixing the bumper fixing recesses 103a, 103b, and 103c and the fixing brackets BKa, BKb, and BKc formed on the bumper reinforcement RF using fixing bolts, respectively. . The cross member 103 has a U-shaped cross section that opens toward the rear of the vehicle.

  Thereby, when it collides with the pedestrian in front of the vehicle, the impact force can be absorbed by the cross member 103 and the pedestrian can be protected from the bumper reinforcement RF. Moreover, the rigidity of the front bumper exterior part 101 having the grille opening 101a can be improved.

  The front bumper 100 further includes a longitudinal member 105. The longitudinal member 105 is formed by integral molding with the front bumper exterior 101 and the transverse member 103. The longitudinal member 105 is arranged so as to longitudinally cut the grille opening 101 a of the front bumper exterior 101. The longitudinal member 105 has a U-shaped cross section that opens toward the rear of the vehicle.

  Thereby, the rigidity of the front bumper exterior part 101 which has the grille opening 101a can be improved.

  The mesh grille 107 is attached to the grille opening 101a of the bumper exterior 101. In FIG. 1, detailed description of the mesh structure of the mesh grill 107 is omitted. The mesh grill 107 has grill fixing recesses 107a, 107b, and 107c for fixing to the bumper exterior portion 101. The grill fixing recess 107 a has a concave shape that is recessed from the vehicle front side to the rear side of the mesh grill 107. The grill fixing recess 107a has a shape that fits into the bumper fixing recess 103a. A bolt insertion hole for inserting a fixing bolt for fixing the mesh grill 107 is formed at the bottom of the grill fixing recess 107a. The grill fixing recesses 107b and 107c are the same as the grill fixing recess 107a. The mesh grille 107 includes grille fixing recesses 107a, 107b, 107c and fixing brackets BKa, BKb, BKc formed on the bumper reinforcement RF via bumper fixing recesses 103a, 103b, 103c of the transverse member 103, respectively. That is, the grill fixing recesses 107a, 107b, and 107c, the fixing brackets BKa, BKb, and BKc and the bumper fixing recesses 103a, 103b, and 103c are integrated with each other and fixed using the fixing bolts, so that a large grill is formed on the bumper exterior portion 101. Even in the case where the opening 101a is formed, the mounting rigidity with respect to the bumper exterior portion 101 can be improved.

[Other embodiments]
(1) Automobile: In the above-described first embodiment, the front bumper 100 of a passenger car is shown as the front bumper of the automobile. However, if the vehicle has a structure in which the bumper reinforcement RF is disposed at the front of the vehicle, the passenger car may be used. It is not limited.

  (2) Longitudinal member 105: Although the front bumper 100 has the longitudinal member 105 in the above-described first embodiment, it may have only the transverse member 103.

  (3) Fixing brackets BKb, BKc: In the first embodiment, the fixing brackets BKb, BKc are formed on the bumper reinforcement RF, but at positions corresponding to the bumper fixing recesses 103b, 103c of the cross member 103. If there is, it is not limited to the example. For example, you may make it form in the radiator grille RG to which the bumper reinforcement RF is attached.

  The front bumper of the automobile according to the present invention can be used as a front bumper of a passenger car, for example.

DESCRIPTION OF SYMBOLS 100 Front bumper 101 Front bumper exterior part 101a Grill opening 103 Crossing member 103a Bumper fixed recessed part 103b Bumper fixed recessed part 103c Bumper fixed recessed part 105 Longitudinal member 107 Mesh grill 107a Grill fixed recessed part 107b Grill fixed recessed part 107c Grill fixed recessed part RG Radiator grill BKa Fixed bracket BKb fixed bracket BKc fixed bracket RF bumper reinforcement

Claims (1)

A front bumper of a car having bumper reinforcement in front of the vehicle,
A front bumper exterior portion forming an outer surface of the vehicle front portion, the front bumper exterior portion having a predetermined opening;
A transverse member formed integrally with the front bumper exterior portion, the transverse member being fixed in front of the bumper reinforcement and formed so as to cross the opening in a lateral direction of the vehicle;
A longitudinal member formed integrally with the front bumper exterior and the transverse member, the longitudinal member fixed to the front of the bumper reinforcement and formed so as to longitudinally cut the opening in the vertical direction of the vehicle,
A grill attached to the opening, the grill fixed to the front of the transverse member and the longitudinal member ;
Car front bumper with.

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