阅读说明：本技术 前防钻撞保护器 (Front underrun protector ) 是由 芹泽尚宜 山田章司 徳武将也 于 2018-05-15 设计创作，主要内容包括：一种前防钻撞保护器(1),具有：在被安装于车辆的情况下,在车辆的车宽方向上延伸的前侧部(11)；被设置在比前侧部(11)靠车辆的前后方向上的后方侧的位置的后侧部(12)；以及被固定在后侧部(12)的加强构件(15),在加强构件(15)的长度方向上的一端,形成有凹部(154),在所述加强构件(15)的长度方向上的另一端,形成有具有与被形成在一端的凹部(154)所具有的轮廓线相同形状的轮廓线的凸部(155)。(A front underrun protector (1) having: a front side portion (11) that extends in the vehicle width direction of the vehicle when the vehicle is mounted on the vehicle; a rear side section (12) that is provided at a position that is further to the rear side in the front-rear direction of the vehicle than the front side section (11); and a reinforcing member (15) fixed to the rear side section (12), wherein a recessed section (154) is formed at one end of the reinforcing member (15) in the longitudinal direction, and a protruding section (155) having a contour line having the same shape as a contour line of the recessed section (154) formed at the one end is formed at the other end of the reinforcing member (15) in the longitudinal direction.)

1. A front underrun protector, comprising:

a front side portion extending in a vehicle width direction of a vehicle in a state of being mounted on the vehicle,

a rear side portion provided at a position further to a rear side in a front-rear direction of the vehicle than the front side portion, an

A reinforcing member fixed to the rear side portion;

a concave portion is formed at one end of the reinforcing member in the longitudinal direction;

a convex portion having a contour line of the same shape as a contour line of the concave portion formed at the one end is formed at the other end of the reinforcing member in the longitudinal direction.

2. The front underrun protector as recited in claim 1,

the concave portion and the convex portion have a curved contour line.

3. The front underrun protector according to claim 1 or 2,

the concave portion and the convex portion have a contour line of a circular arc shape.

4. The front underrun protector according to any of claims 1 to 3,

the rear side portion is shaped like an コ word having an upper surface, a rear surface, and a lower surface;

the reinforcement member has a reinforcement upper surface in contact with the upper surface of the rear side portion, a reinforcement lower surface in contact with the lower surface of the rear side portion, and a reinforcement rear surface in contact with the rear surface of the rear side portion;

the concave portion and the convex portion are formed on the reinforcement rear surface.

5. The front underrun protector according to any of claims 1 to 4,

the recessed portion is formed at one end of the reinforcement member on an outer side in the vehicle width direction of the vehicle;

the convex portion is formed at one end of the reinforcement member on the inner side in the vehicle width direction of the vehicle.

Technical Field

The present disclosure relates to a front underrun protector for a vehicle.

Background

In a vehicle, a front underrun protector (front underrun protector) is mounted on a lower portion of a front of the vehicle. Patent document 1 discloses a front underrun protector provided with a reinforcing member having recesses formed at both ends in the longitudinal direction.

[ Prior art documents ]

[ patent document ]

Patent document 1: japanese laid-open patent publication No. 2004-243831

Disclosure of Invention

[ problem to be solved by the invention ]

As shown in patent document 1, in the case where recesses are formed at both end portions in the longitudinal direction of a reinforcing member provided in a front underrun protector, the following problems arise: when the reinforcing member is cut from 1 sheet of metal used as a material, waste of the material occurs.

The present disclosure has been made in view of these problems, and an object thereof is to provide a front underrun protector including a reinforcement member that is less likely to waste materials.

[ means for solving the problems ]

In a first aspect of the present disclosure, there is provided a front underrun protector, characterized by having: a front side portion extending in a vehicle width direction of a vehicle in a state of being mounted on the vehicle, a rear side portion provided at a position further to a rear side in a front-rear direction of the vehicle than the front side portion, and a reinforcement member fixed to the rear side portion, a recess portion being formed at one end in a longitudinal direction of the reinforcement member; a convex portion having a contour line of the same shape as a contour line of the concave portion formed at the one end is formed at the other end of the reinforcing member in the longitudinal direction.

The concave portion and the convex portion may have curved outlines. Further, the concave portion and the convex portion may have a contour line of a circular arc shape. Further, the rear side portion may have an コ -shaped configuration having an upper surface, a rear surface, and a lower surface; the reinforcement member has a reinforcement upper surface in contact with the upper surface of the rear side portion, a reinforcement lower surface in contact with the lower surface of the rear side portion, and a reinforcement rear surface in contact with the rear surface of the rear side portion; the concave portion and the convex portion are formed on the reinforcement rear surface.

The concave portion may be formed at one end of the reinforcing member on the outer side in the vehicle width direction of the vehicle, and the convex portion may be formed at one end of the reinforcing member on the inner side in the vehicle width direction of the vehicle.

[ Effect of the invention ]

According to the present disclosure, in the reinforcement member of the front underrun protector, an effect that waste of material is less likely to occur is achieved.

Drawings

Fig. 1 shows a state in which the front underrun protector of the present embodiment is mounted on a vehicle.

Fig. 2 shows a structure of the vicinity of the reinforcement member in the front underrun protector of the present embodiment shown in fig. 1, as viewed from the vehicle rear side.

Fig. 3 shows the structure of the front underrun protector of the present embodiment.

Fig. 4 shows a state where the reinforcing member is cut out from the metal plate.

Detailed Description

< this embodiment > [ Structure of front underrun protector 1 ]

Fig. 1 is a diagram showing a state in which a front underrun protector 1 of the present embodiment is mounted on a vehicle. Fig. 2 is a view showing a structure of the vicinity of the reinforcement member 15 in the front underrun protector 1 of the present embodiment shown in fig. 1, as viewed from the vehicle rear side. Fig. 3 is a diagram showing the structure of the front underrun protector 1 of the present embodiment. Fig. 4 is a view showing a state where the reinforcing member 15 is cut out from the metal plate 4.

The front underrun protector 1 is a member for absorbing an impact when a vehicle is collided with from the front and reducing the influence on the vehicle. The front underrun protector 1 extends in the vehicle width direction of the vehicle, and is provided at a lower front portion of the vehicle. Specifically, as shown in fig. 1, the front underrun protector 1 is fixed to a side frame 2 of the vehicle via a bracket 3. The side frames 2 are a plurality of members extending in the front-rear direction of the vehicle.

The front underrun protector 1 is provided with 2 reinforcement members 15, and the front underrun protector 1 is fixed to the side frames 2 via the brackets 3 at the positions where the reinforcement members 15 are provided.

The front underrun protector 1 has a front side portion 11, a rear side portion 12, and a reinforcement member 15. The front underrun protector 1 is formed by connecting a front side portion 11 having a shape of コ in cross section and a rear side portion 12 having a shape of コ in cross section, and has a space inside. When mounted on a vehicle, the front side portion 11 extends in the vehicle width direction of the vehicle. The front side portion 11 has a cross-section コ -shaped open toward the rear of the vehicle, and is a member on the front side in the vehicle front-rear direction of the front underrun protector 1.

The front portion 11 has a front panel portion 111, an upper panel portion 112, and a lower panel portion 113. The front panel 111, the upper panel 112, and the lower panel 113 are each rectangular panels. The longitudinal direction of the front panel 111 is the same direction as the vehicle width direction of the vehicle. The longitudinal direction of the upper panel portion 112 is the same direction as the vehicle width direction of the vehicle. The upper panel portion 112 extends from the upper end of the front panel portion 111 in the vehicle height direction toward the rear in the vehicle front-rear direction. The upper panel portion 112 is formed to be orthogonal to the front panel portion 111.

The longitudinal direction of the lower panel portion 113 is the same direction as the vehicle width direction of the vehicle. The lower panel portion 113 extends from the lower end of the front panel portion 111 in the vehicle height direction toward the rear in the vehicle front-rear direction. Lower panel portion 113 is formed to be orthogonal to front panel portion 111.

The rear side portion 12 extends in the vehicle width direction of the vehicle, and is provided at a position on the rear side in the vehicle front-rear direction with respect to the front side portion 11. The rear side portion 12 has a cross section コ -shaped open toward the front side of the vehicle.

The rear portion 12 has a rear panel portion 121, an upper panel portion 122, and a lower panel portion 123. The rear panel 121, the upper panel 122, and the lower panel 123 are each rectangular panels. The longitudinal direction of the rear panel portion 121 is the same as the vehicle width direction of the vehicle. The longitudinal direction of the upper panel portion 122 is the same direction as the vehicle width direction of the vehicle. The upper panel portion 122 extends from the upper end of the rear panel portion 121 in the height direction of the vehicle toward the front in the front-rear direction of the vehicle. The upper panel portion 122 is formed to be orthogonal to the rear panel portion 121.

The longitudinal direction of the lower panel portion 123 is the same as the vehicle width direction of the vehicle. The lower panel portion 123 extends from the lower end of the rear panel portion 121 in the height direction of the vehicle toward the front in the front-rear direction of the vehicle. The lower panel portion 123 is formed orthogonal to the rear panel portion 121.

The upper panel portion 112 of the front side portion 11 and the upper panel portion 122 of the rear side portion 12 are connected by welding. The lower panel portion 113 of the front portion 11 and the lower panel portion 123 of the rear portion 12 are connected by welding.

[ Structure of reinforcing Member 15 ]

The reinforcement member 15 is a member for improving the strength of the front underrun protector 1. As shown in fig. 1 to 3, the reinforcing member 15 is fixed to the rear side portion 12. As shown in fig. 2, the reinforcing member 15 has a cross-section コ -shaped that opens toward the front of the vehicle. The reinforcing member 15 has a rear panel portion 151, an upper panel portion 152, a lower panel portion 153, a recess 154, and a projection 155.

The longitudinal direction of the rear panel portion 151 is the same as the vehicle width direction of the vehicle. The longitudinal direction of the upper panel portion 152 is the same direction as the vehicle width direction of the vehicle. The upper panel portion 152 extends from the upper end of the rear panel portion 151 in the height direction of the vehicle toward the front in the front-rear direction of the vehicle. The upper plate portion 152 is formed to be orthogonal to the rear plate portion 151.

The longitudinal direction of the lower panel portion 153 is the same direction as the vehicle width direction of the vehicle. The lower panel portion 153 extends from the lower end of the rear panel portion 151 in the height direction of the vehicle toward the front in the front-rear direction of the vehicle. The lower panel portion 153 is formed orthogonal to the rear panel portion 151. The rear panel portion 151 of the reinforcing member 15 is in contact with the rear panel portion 121 of the rear portion 12. Further, the upper surface plate portion 152 of the reinforcing member 15 is in contact with the upper surface plate portion 122 of the rear portion 12. Further, the lower panel portion 153 of the reinforcing member 15 is in contact with the lower panel portion 123 of the rear portion 12.

In addition, as shown in fig. 1 and 3, 2 reinforcing members 15 are provided on the front underrun protector 1. The reinforcement member 15 is provided at a position corresponding to the side frame 2 and the bracket 3 in the vehicle width direction of the vehicle. The bracket 3 is connected to the rear panel portion 151 of the reinforcing member 15.

The recess 154 is a recess formed at one end in the longitudinal direction of the reinforcing member 15. Specifically, the recess 154 is formed at one end in the longitudinal direction of the rear plate portion 151. More specifically, as shown in fig. 2 and 3, the recessed portion 154 is formed at one end of the reinforcement member 15 on the outer side in the vehicle width direction.

The convex portion 155 is formed at the other end of the reinforcing member 15 in the longitudinal direction, and has a contour line having the same shape as the contour line of the concave portion 154. Specifically, the convex portion 155 is formed at the other end opposite to the one end of the rear panel portion 151 on the side where the concave portion 154 is formed in the longitudinal direction. More specifically, as shown in fig. 2 and 3, the convex portion 155 is formed at one end of the reinforcing member 15 on the inner side in the vehicle width direction.

Since the reinforcing member 15 has the concave portion 154 and the convex portion 155 at the end portion in the longitudinal direction of the reinforcing member 15, when the reinforcing member 15 is fixed in contact with the rear side portion 12, the contour lines of both ends in the longitudinal direction of the reinforcing member 15 are the contour lines of the concave portion 154 and the contour lines of the convex portion 155.

Therefore, in the front underrun protector 1, for example, when a load is applied to the front underrun protector 1 from the vehicle front, the front underrun protector 1 can expand the deformation range of the rear side portion 12 as compared with a case where both ends of the reinforcing member 15 in the longitudinal direction are straight, and can disperse the stress generated in the rear side portion 12 at the portions where both ends of the reinforcing member 15 in the longitudinal direction are located. As a result, the strength of the front underrun protector 1 is improved.

Further, as shown in fig. 2 and 3, since the shape of the contour line of the convex portion 155 is the same as the shape of the contour line of the concave portion 154, for example, as shown in fig. 4, the reinforcing member 15 can be cut out from 1 metal plate 4 so as to be adjacent to each other by a plurality of reinforcing members 15. After the reinforcing member 15 is cut out from the metal plate 4, the upper plate portion 152 and the lower plate portion 153 are bent so as to be orthogonal to the rear plate portion 151, whereby the reinforcing member 15 having a cross-section コ shape shown in fig. 1 and 2 can be manufactured.

Therefore, in the case of the reinforcing member 15, for example, when a plurality of reinforcing members 15 are cut from 1 metal plate 4, as compared with the case where concave portions are formed at both ends of the reinforcing member 15 in the longitudinal direction, or the case where convex portions are formed at both ends of the reinforcing member 15 in the longitudinal direction, waste of material is less likely to occur.

The concave portion 154 and the convex portion 155 have curved outlines. Since the concave portion 154 and the convex portion 155 have curved contour lines, the front underrun protector 1 can disperse stress generated in portions of the rear portion 12 where both ends of the reinforcing member 15 in the longitudinal direction are located, as compared with a case where the concave portion 154 and the convex portion 155 are formed only by linear contour lines, for example, a case where the concave portion 154 and the convex portion 155 are triangular. As a result, the strength of the front underrun protector 1 is improved.

The concave portion 154 and the convex portion 155 have a contour line of a circular arc shape. The circular arc shape is the shape of the arc portion of a circle or an ellipse. Since the concave portion 154 and the convex portion 155 have the contour lines of the circular arc shapes, the stress generated in the portions of the rear side portion 12 where both ends of the reinforcing member 15 in the longitudinal direction are located can be equally dispersed along the contour lines of the concave portion 154 and the convex portion 155. As a result, the strength of the front underrun protector 1 is further improved.

[ Effect of the front underrun protector 1 of the present embodiment ]

The front underrun protector 1 of the present embodiment includes: a front side portion 11 extending in a vehicle width direction of the vehicle when mounted to the vehicle; a rear side portion 12 provided at a position further to the rear side in the vehicle front-rear direction than the front side portion 11; and a reinforcing member 15 fixed to the rear side portion 12. In the front underrun protector 1, a concave portion 154 is formed at one end in the longitudinal direction of the reinforcement member 15, and a convex portion 155 having a contour line having the same shape as a contour line of the concave portion 154 formed at the one end is formed at the other end in the longitudinal direction of the reinforcement member 15.

In the front underrun protector 1 of the present embodiment, the concave portion 154 is formed at one end in the longitudinal direction of the reinforcing member 15, and the convex portion 155 is formed at the other end in the longitudinal direction of the reinforcing member 15. Therefore, for example, when a load is applied to the front underrun protector 1 from the front of the vehicle, the front underrun protector 1 can disperse the stress generated at the portions where the both ends of the reinforcing member 15 are located. As a result, the strength of the front underrun protector 1 is improved. In addition, the front underrun protector 1 is less likely to cause waste of material when the reinforcement member 15 is cut out from the 1-piece metal plate 4 used as a material.

While the embodiments of the present disclosure have been described above, the technical scope of the present disclosure is not limited to the scope described in the above embodiments, and various modifications and changes can be made within the scope of the present disclosure. For example, the specific embodiments of the separation and integration of the apparatuses are not limited to the above-described embodiments, and all or a part of the embodiments may be configured by functionally or physically separating and integrating the apparatuses in arbitrary units. In addition, a new embodiment which is created by arbitrary combination of the plurality of embodiments is also included in the embodiments of the present disclosure. The effects of the new embodiment produced by the combination have the effects of the original embodiment at the same time.

The present application is based on the japanese patent application filed 24.05.2017 (japanese application 2017-.

[ Industrial Applicability ]

According to the present disclosure, the effect of efficiently cutting and manufacturing the plate-shaped material is achieved, and the present disclosure is useful in that the manufacturing cost is reduced by suppressing the manufacturing cost to a low level, and the present disclosure contributes to saving resources.

[ description of reference numerals ]

1 … front underrun protector

11 … front side part

111 … front panel

112 … upper panel part

113 … lower panel part

12 … rear side part

121 … rear panel part

122 … upper panel part

123 … lower panel part

15 … reinforcing member

151 … rear panel part

152 … upper panel part

153 … lower panel part

154 … recess

155 … convex part

2 … side frame

3 … Stand

4 … Metal sheet