JP2018197011A - Front underrun protector mounting structure - Google Patents

Abstract

To improve workability in mounting a front underrun protector in a process of assembling a vehicle.SOLUTION: A front underrun protector mounting structure 1 comprises: a front underrun protector 11 extending in a vehicle width direction of a vehicle; a flat plate 12 fixed on a rear surface of the front underrun protector 11 by means of a bolt 161 and a nut 162; a connection member 13 extending in forward and rearward directions of the vehicle and whose front end and rear end in the forward and rearward directions of the vehicle are fixed to a rear surface of the flat plate 12 and to a frame of the vehicle, respectively; and a reinforcement plate 14 fixed to the rear surface of the flat plate 12 and to a side surface of the connection member 13. The flat plate 12 has a plurality of mounting holes 121 through which the leading end of each bolt 161 is passed. The plurality of mounting holes 121 are separately formed in a vehicle height direction or in the vehicle width direction, and the reinforcement plate 14 is located between the plurality of mounting holes 121.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a front under-lamp protector mounting structure for a vehicle.

  A front under-run protector is attached to the vehicle at a lower front portion of the vehicle. Patent Document 1 discloses a structure in which a front underrun protector is fixed to a vehicle body frame via a mounting bracket and a support.

JP 2005-88740 A

  As shown in Patent Document 1, the front underrun protector is fixed to a vehicle frame by attaching a support to the rear surface of the front underrun protector using bolts and nuts. In this case, when the front underrun protector is attached to the vehicle frame in the vehicle assembly process, the operator located in front of the front underrun protector cannot see the mounting portion behind the front underrun protector, and the workability is poor. There was a problem.

  Accordingly, the present invention has been made in view of these points, and an object thereof is to provide a front under-run protector mounting structure that improves workability during mounting in a vehicle assembly process.

  In the first aspect of the present invention, a front under-run protector extending in the vehicle width direction of the vehicle, a flat plate fixed to the rear surface of the front under-run protector by bolts and nuts, and extending in the front-rear direction of the vehicle A front end of the vehicle in the front-rear direction is fixed to the rear surface of the flat plate, and a rear end of the vehicle in the front-rear direction is fixed to the frame of the vehicle; the rear surface of the flat plate and the connection member A reinforcing plate fixed to the side surface of the vehicle, and the flat plate has a plurality of mounting holes through which the ends of the bolts pass, and the plurality of mounting holes are arranged in the height direction of the vehicle or A front underrun protector, wherein the front underrun protector is formed apart from each other in the vehicle width direction, and the reinforcing plate is located between the plurality of mounting holes. To provide a biasing structure.

  The reinforcing plate has a triangular shape, and a first side of the reinforcing plate is fixed to a rear surface of the flat plate, and is a second side that is orthogonal to the first side and is longer than the first side. May be fixed to the side surface of the connecting member. An outer edge portion of the reinforcing plate in the vehicle width direction of the vehicle may be positioned on an inner side in the vehicle width direction of the vehicle than an outer edge portion of the flat plate in the vehicle width direction of the vehicle.

  The plurality of mounting holes are spaced apart in the vehicle width direction of the vehicle, the plurality of first mounting holes formed apart from each other in the height direction of the vehicle, the plurality of first mounting holes. A plurality of second mounting holes formed, and outer edges of the reinforcing plate in the vehicle width direction of the vehicle are formed apart from each other in the vehicle width direction of the vehicle. Between the first mounting hole and the plurality of second mounting holes.

  According to the present invention, there is an effect that workability at the time of mounting the front underrun protector in the vehicle assembly process is improved.

The structure of the front underrun protector which concerns on this embodiment is shown. The structure of the front underlamp protector attachment structure which concerns on this embodiment is shown. It is the figure which looked at the structure of the reinforcement board vicinity in the front underlamp protector attachment structure shown in FIG. 2 from the vehicle upper direction. It is the figure which looked at the structure of the reinforcement board vicinity in the front underlamp protector attachment structure shown in FIG. 2 from the vehicle back. The state which the member which comprises the front under lamp protector attachment structure concerning this embodiment was isolate | separated is shown. The state which fastens the nut to the bolt by hand in the front underrun protector mounting structure according to the present embodiment is shown. The state which fastens the nut to the volt | bolt using the tool in the front under lamp | ramp protector attachment structure which concerns on this embodiment is shown.

<This embodiment>
[Configuration of front underrun protector mounting structure 1]
FIG. 1 is a diagram illustrating a configuration of a front underrun protector 11 according to the present embodiment. FIG. 2 is a diagram showing a configuration of the front under-run protector mounting structure 1 according to the present embodiment. FIG. 3 is a view of the configuration in the vicinity of the reinforcing plate 14 in the front underlamp protector mounting structure 1 shown in FIG. 2 as viewed from above the vehicle. FIG. 4 is a view of the configuration in the vicinity of the reinforcing plate 14 in the front underrun protector mounting structure 1 shown in FIG. FIG. 5 is a view showing a state where members constituting the front under-run protector mounting structure 1 according to the present embodiment are separated.

  FIG. 6 is a view showing a state in which the nut 162 is fastened to the bolt 161 by the hand 18 in the front under-run protector mounting structure 1 according to the present embodiment. FIG. 7 is a view showing a state in which the nut 162 is fastened to the bolt 161 using the tool 19 in the front under-run protector mounting structure 1 according to the present embodiment.

  The front underrun protector mounting structure 1 includes a front underrun protector 11, a flat plate 12, a connection member 13, a reinforcing plate 14, a bracket 15, a fastening member 16, and a fastening member 17. The front underrun protector 11 is a member for absorbing an impact at the time of a collision from the front with respect to the vehicle and reducing the influence on the vehicle. The front underrun protector 11 extends in the vehicle width direction of the vehicle and is provided at the lower front portion of the vehicle.

  The front underrun protector 11 has a front side portion 111 and a rear side portion 112. The front underrun protector 11 is formed by connecting a front side portion 111 having a U-shaped cross section and a rear side portion 112 having a U-shaped cross section, and has a space inside. The front side portion 111 has a U-shaped cross section that is open toward the rear side of the vehicle, and is a front side member of the front underrun protector 11 in the front-rear direction of the vehicle. The front side portion 111 extends in the vehicle width direction of the vehicle when mounted on the vehicle.

  The front side portion 111 includes a front plate portion 1111, an upper plate portion 1112, and a lower plate portion 1113. The front plate portion 1111, the upper plate portion 1112, and the lower plate portion 1113 are each a rectangular plate. The longitudinal direction of the front plate portion 1111 is the same direction as the vehicle width direction of the vehicle. The longitudinal direction of the upper surface plate portion 1112 is the same direction as the vehicle width direction of the vehicle. The upper surface plate portion 1112 extends from the upper end of the front plate portion 1111 in the vehicle height direction toward the rear in the vehicle front-rear direction. The upper surface plate portion 1112 is formed orthogonal to the front surface plate portion 1111.

  The longitudinal direction of the bottom plate 1113 is the same direction as the vehicle width direction of the vehicle. The lower surface plate portion 1113 extends from the lower end of the front surface plate portion 1111 in the vehicle height direction toward the rear in the vehicle front-rear direction. The lower surface plate portion 1113 is formed orthogonal to the front surface plate portion 1111.

  The rear side portion 112 extends in the vehicle width direction of the vehicle and is provided on the rear side in the vehicle front-rear direction with respect to the front side portion 111. The rear side portion 112 has a U-shaped cross section that is open toward the front side of the vehicle.

  The rear side portion 112 has a rear plate portion 1121, an upper surface plate portion 1122, and a lower surface plate portion 1123. The longitudinal direction of the rear plate portion 1121 is the same direction as the vehicle width direction of the vehicle. The longitudinal direction of the upper surface plate portion 1122 is the same direction as the vehicle width direction of the vehicle. The upper surface plate portion 1122 extends from the upper end of the rear surface plate portion 1121 in the vehicle height direction toward the front in the vehicle front-rear direction. The upper surface plate portion 1122 is formed orthogonal to the rear surface plate portion 1121.

  The longitudinal direction of the lower surface plate portion 1123 is the same direction as the vehicle width direction of the vehicle. The lower surface plate portion 1123 extends from the lower end of the rear surface plate portion 1121 in the vehicle height direction toward the front in the vehicle front-rear direction. The lower surface plate portion 1123 is formed orthogonal to the rear surface plate portion 1121.

  The upper surface plate portion 1112 of the front side portion 111 and the upper surface plate portion 1122 of the rear side portion 112 are connected by welding. Further, the lower surface plate portion 1113 of the front side portion 111 and the lower surface plate portion 1123 of the rear side portion 112 are connected by welding.

  The flat plate 12 is a member to which the front under-run protector 11 is attached, and is connected to the connection member 13 by welding. The length of the flat plate 12 in the height direction of the vehicle is larger than the length of the front underrun protector 11 in the height direction of the vehicle. Details of the flat plate 12 will be described later.

  The connecting member 13 is a member that connects the front underrun protector 11 and the vehicle frame. The connecting member 13 extends in the front-rear direction of the vehicle, the front end in the front-rear direction of the vehicle is fixed to the rear surface of the flat plate 12, and the rear end in the front-rear direction of the vehicle is fixed to the frame of the vehicle.

  The connection member 13 includes a connection member main body 131 and an attachment portion 132. The connection member main body 131 has a cylindrical shape with a square cross section, and extends in the front-rear direction of the vehicle. The connection member main body 131 includes an upper surface plate portion 1311, a left side surface plate portion 1312, a right side surface plate portion 1313, and a lower surface plate portion 1314. The upper surface plate portion 1311, the left side surface plate portion 1312, the right side surface plate portion 1313, and the lower surface plate portion 1314 are each a rectangular plate.

  The longitudinal direction of the upper surface plate portion 1311 is the same direction as the longitudinal direction of the vehicle. The longitudinal direction of the left side plate portion 1312 is the same as the vehicle front-rear direction. The left side plate portion 1312 extends from the left end of the upper plate portion 1311 in the vehicle width direction toward the lower side in the vehicle height direction. The left side plate portion 1312 is formed orthogonal to the top plate portion 1311.

  The longitudinal direction of the right side plate portion 1313 is the same direction as the longitudinal direction of the vehicle. The right side plate portion 1313 extends from the right end of the upper surface plate portion 1311 in the vehicle width direction toward the lower side in the vehicle height direction. The right side plate portion 1313 is formed orthogonal to the upper plate portion 1311.

  The longitudinal direction of the lower surface plate portion 1314 is the same direction as the longitudinal direction of the vehicle. The lower surface plate portion 1314 connects the lower end of the left side surface plate portion 1312 and the lower end of the right side surface plate portion 1313. The lower surface plate portion 1314 is orthogonal to the left side surface plate portion 1312 and the right side surface plate portion 1313.

  The attachment portion 132 is provided at the rear end edge of the connection member main body 131 in the vehicle front-rear direction. The attachment part 132 has a surface in contact with the frame of the vehicle. The front end of the vehicle in the longitudinal direction of the connection member main body 131 is fixed to the rear surface of the flat plate 12 by welding. The attachment portion 132 is fixed to a vehicle frame (not shown).

  The reinforcing plate 14 has a function of improving the strength of the front underrun protector mounting structure 1 and improving workability when the front underrun protector 11 is assembled to the flat plate 12. The reinforcing plate 14 is fixed to the rear surface of the flat plate 12 and the left side plate portion 1312 of the connecting member 13. Details of the reinforcing plate 14 will be described later.

  The bracket 15 is a member that connects the front underrun protector 11 and the flat plate 12. The bracket 15 is L-shaped. The bracket 15 is connected to the upper surface plate portion 1122 of the rear side portion 112 of the front under-run protector 11 by welding.

[Detailed Configuration of Flat Plate 12 and Reinforcing Plate 14]
The flat plate 12 is fixed to the rear surface of the front under-run protector 11 by a fastening member 16. Specifically, the flat plate 12 is fixed to the rear plate portion 1121 of the rear side portion 112 of the front underrun protector 11 by the fastening member 16. A plurality of attachment holes 121, a plurality of attachment holes 122, and openings 123 are formed in the flat plate 12. The plurality of mounting holes 121 are holes used for connecting the rear plate portion 1121 of the rear side portion 112 and the flat plate 12 by the fastening member 16. The fastening member 16 has a bolt 161 and a nut 162.

  The plurality of attachment holes 121 are holes through which the tips of the bolts 161 pass. The plurality of mounting holes 121 are located between the lower end of the front underrun protector 11 and the upper end of the front underrun protector 11 in the height direction of the vehicle. The plurality of attachment holes 121 are located between the left side plate portion 1312 of the connection member main body 131 in the vehicle width direction and the outer edge portion of the flat plate 12 in the vehicle width direction of the vehicle.

  The plurality of mounting holes 121 are formed so as to be separated in the height direction or the vehicle width direction of the vehicle. The plurality of attachment holes 121 include a plurality of first attachment holes 1211 and a plurality of second attachment holes 1212. The plurality of first mounting holes 1211 are formed in two rows so as to be spaced apart from each other in the height direction of the vehicle. The plurality of second mounting holes 1212 are formed in two rows so as to be spaced apart from each other in the height direction of the vehicle. The plurality of second attachment holes 1212 are formed to be separated from the plurality of first attachment holes 1211 in the vehicle width direction of the vehicle. The plurality of second mounting holes 1212 are located on the outer side in the vehicle width direction of the vehicle than the plurality of first mounting holes 1211.

  The plurality of mounting holes 122 are holes used for connecting the bracket 15 and the flat plate 12 by the fastening member 17. The fastening member 17 has a bolt 171 and a nut 172. The plurality of attachment holes 122 are holes through which the tips of the bolts 171 pass.

  The plurality of mounting holes 122 are located above the upper end of the front underrun protector 11 in the height direction of the vehicle. The plurality of mounting holes 122 are located between the upper surface plate portion 1311 of the connecting member main body 131 in the flat plate 12 and the upper end of the flat plate 12 in the vehicle height direction. For example, two mounting holes 122 are formed in the flat plate 12 so as to be spaced apart from each other in the vehicle width direction of the vehicle.

  The flat plate 12 is attached to the rear plate portion 1121 of the rear side portion 112 of the front under-run protector 11 by a fastening member 16. The fastening member 16 includes a bolt 161 and a nut 162. The flat plate 12 is inserted into a plurality of mounting holes 121 formed in the flat plate 12 by inserting the tips of bolts 161 that are attached to the rear side plate portion 1121 of the rear side portion 112 of the front under-run protector 11 and penetrated. The bolt 162 is attached to the rear side portion 112 by tightening a nut 162 at the tip thereof.

  The flat plate 12 is attached to the bracket 15 by a fastening member 17. The fastening member 17 has a bolt 171 and a nut 172. The flat plate 12 is inserted into the hole formed in the bracket 15 and the mounting hole 122 formed in the flat plate 12 by inserting the tip of the bolt 171 into the bracket 15 by tightening the nut 172 to the tip of the inserted bolt 171. It is attached.

  The reinforcing plate 14 is located between the plurality of mounting holes 121. Therefore, the operator can use the reinforcing plate 14 from the front of the front underrun protector 11 to sort the positions of the plurality of mounting holes 121. As a result, the front underrun protector mounting structure 1 improves workability when the front underrun protector 11 is mounted in the vehicle assembly process.

  Further, the outer edge of the reinforcing plate 14 in the vehicle width direction of the vehicle is located on the inner side in the vehicle width direction of the vehicle than the outer edge of the flat plate 12 in the vehicle width direction of the vehicle. The front under-run protector mounting structure 1 can prevent the reinforcing plate 14 from being obstructed when the front under-run protector 11 is mounted by forming the reinforcing plate 14 in such a shape.

  As shown in FIG. 2, the outer edge of the reinforcing plate 14 in the vehicle width direction of the vehicle has a plurality of first mounting holes 1211 and a plurality of second mounting holes that are spaced apart in the vehicle width direction of the vehicle. It is located between the mounting holes 1212. By positioning the reinforcing plate 14 in this way, the operator can more clearly separate the positions of the plurality of mounting holes 121 by relying on the reinforcing plate 14 from the front of the front under-run protector 11. For example, the operator can separate the positions of the four mounting holes 121 formed in the flat plate 12 by using the reinforcing plate 14.

  As a result, the front underrun protector mounting structure 1 can improve workability when the front underrun protector 11 is mounted in the vehicle assembly process.

  The reinforcing plate 14 has a triangular shape as shown in FIG. The reinforcing plate 14 is orthogonal to the flat plate 12 and the left side plate portion 1312 of the connecting member main body 131. The first side of the reinforcing plate 14 is fixed to the rear surface of the flat plate 12. Specifically, the front end of the reinforcing plate 14 in the longitudinal direction of the vehicle is fixed to the flat plate 12. A second side that is orthogonal to the first side and is longer than the first side is fixed to the left side plate portion 1312 of the connection member 13. Specifically, the inner end portion of the reinforcing plate 14 in the vehicle width direction of the vehicle is fixed to the left side plate portion 1312 of the connection member 13.

  In the front underrun protector mounting structure 1, the reinforcing plate 14 has such a triangular shape. For example, the strength of the front underrun protector mounting structure 1 can be reduced in a smaller space than when the reinforcing plate 14 has a rectangular shape. Can be improved. In particular, when a load is applied to the front underrun protector 11 from the front side of the vehicle, the front underrun protector 11 can be prevented from bending backward.

  6, the operator rotates the nut 162 with the hand 18 and tightens it to the bolt 161 as shown in FIG. 6, or the operator rotates the nut 162 with the tool 19 as shown in FIG. Thus, when the bolt 161 is tightened, the reinforcing plate 14 can be prevented from becoming an obstacle during operation.

[Effects of the front under-run protector mounting structure 1 according to this embodiment]
The front under-run protector mounting structure 1 according to the present embodiment includes a front under-run protector 11 that extends in the vehicle width direction of the vehicle, and a flat plate 12 that is fixed to the rear surface of the front under-run protector 11 by bolts 161 and nuts 162. Have The front underrun protector mounting structure 1 extends in the vehicle front-rear direction, the front end in the vehicle front-rear direction is fixed to the rear surface of the flat plate 12, and the rear end in the vehicle front-rear direction is fixed to the vehicle frame. And a reinforcing plate 14 fixed to the rear surface of the flat plate 12 and the side surface of the connecting member 13.

  The flat plate 12 has a plurality of mounting holes 121 through which the tips of the bolts 161 pass. The plurality of mounting holes 121 are formed to be spaced apart from each other in the vehicle height direction or the vehicle width direction. The plate 14 is located between the plurality of mounting holes 121.

  The front under-run protector mounting structure 1 according to the present embodiment includes the flat plate 12 including the plurality of mounting holes 121 through which the tips of the bolts 161 pass, and the plurality of mounting holes 121 are arranged at the height of the vehicle. The reinforcing plates 14 are spaced apart in the direction or the vehicle width direction, and the reinforcing plate 14 is positioned between the plurality of mounting holes 121.

  Therefore, the front under-run protector mounting structure 1 can sort the positions of the plurality of mounting holes 121 by using the reinforcing plate 14 when the front under-run protector 11 is mounted on the flat plate 12. As a result, the front underrun protector mounting structure 1 improves the workability at the time of mounting the front underrun protector 11 in the vehicle assembly process.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment, A various deformation | transformation and change are possible within the range of the summary. is there. For example, the specific embodiments of device distribution / integration are not limited to the above-described embodiments, and all or a part of them may be configured to be functionally or physically distributed / integrated in arbitrary units. Can do. In addition, new embodiments generated by any combination of a plurality of embodiments are also included in the embodiments of the present invention. The effect of the new embodiment produced by the combination has the effect of the original embodiment.

DESCRIPTION OF SYMBOLS 1 ... Front under lamp protector attachment structure 11 ... Front under lamp protector 111 ... Front side part 1111 ... Front plate part 1112 ... Upper surface board part 1113 ... Lower surface board part 112 ... Rear Side portion 1121... Rear plate portion 1122. Upper surface plate portion 1123... Lower surface plate portion 12... Flat plate 121 .. Mounting hole 1211. Mounting hole 122 ... Mounting hole 123 ... Opening 13 ... Connection member 131 ... Connection member main body 1311 ... Upper surface plate portion 1312 ... Left side surface plate portion 1313 ... Right side surface plate portion 1314 ... -Lower surface plate part 132 ... Mounting part 14 ... Reinforcement plate 15 ... Bracket 16 ... Fastening member 161 ... Bolt 162 ... Nuts 17 ... Fastening member 171 ... Bolt 72 ... nut 18 ... hand 19 ... tool

Claims (4)

A front underrun protector extending in the vehicle width direction of the vehicle;
A flat plate fixed by bolts and nuts to the rear surface of the front underrun protector;
A connecting member that extends in the front-rear direction of the vehicle, a front end in the front-rear direction of the vehicle is fixed to a rear surface of the flat plate, and a rear end in the front-rear direction of the vehicle is fixed to the frame of the vehicle;
A reinforcing plate fixed to a rear surface of the flat plate and a side surface of the connecting member;
Have
The flat plate has a plurality of mounting holes through which the tip of the bolt passes,
The plurality of mounting holes are formed apart in the height direction or the vehicle width direction of the vehicle,
The front under-run protector mounting structure, wherein the reinforcing plate is located between the plurality of mounting holes. The reinforcing plate has a triangular shape,
The first side of the reinforcing plate is fixed to the rear surface of the flat plate,
A second side that is orthogonal to the first side and is longer than the first side is fixed to a side surface of the connection member,
The front under lamp protector mounting structure according to claim 1. An outer edge portion of the reinforcing plate in the vehicle width direction of the vehicle is located on an inner side in the vehicle width direction of the vehicle than an outer edge portion of the flat plate in the vehicle width direction of the vehicle. ,
The front under lamp protector mounting structure according to claim 1 or 2. The plurality of mounting holes are
A plurality of first mounting holes formed apart from each other in the height direction of the vehicle;
The plurality of first mounting holes, and the plurality of second mounting holes formed apart from each other in the vehicle width direction of the vehicle,
Have
An outer edge portion of the reinforcing plate in the vehicle width direction of the vehicle is a space between the plurality of first mounting holes and the plurality of second mounting holes that are formed apart from each other in the vehicle width direction of the vehicle. It is located between,
The front under-run protector mounting structure according to any one of claims 1 to 3.

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