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Bumper system

A bumper and bumper beam technology, applied in the field of bumper systems, can solve problems such as low strength and low specific gravity, and achieve the effect of preventing lateral fall and penetration

Active Publication Date: 2020-04-21
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since this aluminum alloy has a low specific gravity, it is effective for weight reduction, but it has low strength.

Method used

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Examples

Experimental program
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Effect test

no. 1 Embodiment approach ）

[0048] like figure 1 As shown, the bumper bracket 10 is a member that connects a bumper beam 20 to be described later and a vehicle body panel 30 . In the present embodiment, two bumper brackets 10 having the same shape connect one bumper beam 20 to two vehicle body panels 30 . Hereinafter, the direction in which the bumper beam 20 extends (direction X in the figure) is referred to as the width direction of the vehicle, the direction in which the bumper bracket 10 extends (direction Y in the figure) is referred to as the front-rear direction of the vehicle, and The direction (Z direction in the figure) perpendicular to these directions is referred to as the height direction of the vehicle.

[0049] like figure 2 and image 3 As shown, the bumper bracket 10 passes through the first connecting rib 13 (refer to figure 2 ) and the second connecting rib 14 at the other end (refer to image 3 ) to connect the first pipe body 11 and the second pipe body 12 extending in the fro...

no. 2 Embodiment approach ）

[0071] exist Figure 13 to Figure 18 In the bumper system 1 according to the second embodiment shown, the shape of the second connection rib 14 is different. In addition to the structure of this, with Figure 1 to Figure 7 The structure of the bumper system 1 of the first embodiment is the same. Therefore, the same reference numerals may be assigned to the same components as those in the configuration shown in the first embodiment, and description thereof may be omitted.

[0072] In this embodiment, the plate slit 33 and beam slit 23c, 24c are not provided like 1st Embodiment and its modification. Instead, as will be described later, the second connection rib 14 is connected to the first pipe body 11 and the second pipe body 12 by welding.

[0073] Like the first embodiment, the first connecting rib 13 of the bumper bracket 10 is along the front-rear direction of the vehicle ( figure 1 The Y direction) extends the plate-shaped part. The first connecting rib 13 is provided...

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PUM

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Abstract

In this bumper system 1, one end of a first tube body 11 is inserted into first beam holes 23a, 24a, the other end of the first tube body 11 is inserted into a first plate hole 31, one end of a secondtube body 12 is inserted into second beam holes 23b, 24b, and the other end of the second tube body 12 is inserted into a second plate hole 32. A bumper stay 10 is joined by staking to a bumper beam20 and a vehicle body plate 30 while the first tube body 11 is expanded at the holes 23a, 24a, 31 and the second tube body 12 is expanded at the holes 23b, 24b, 32. A first connection rib 13 is in contact with the bumper beam 20, and a second connection rib 14 is in contact with the vehicle body plate 30 in the same direction as the direction in which the first connection rib 13 is in contact withthe bumper beam 20.

Description

technical field [0001] The present invention relates to bumper systems. Background technique [0002] In order to reduce the weight of automobiles and improve safety, low-specific-gravity and high-strength metals called high-strength steels are used. High-strength steel is effective for weight reduction and safety improvement, but it is heavier than materials with lower specific gravity such as aluminum alloy. In addition, if high-strength steel is used, problems such as a decrease in formability, an increase in forming load, and a decrease in dimensional accuracy occur due to high strength. In order to solve these problems, in recent years, extruded, cast, and press-formed aluminum alloys having a lower specific gravity than steel have been used for vehicle parts. Since this aluminum alloy has a low specific gravity, it is effective for weight reduction, but has low strength. Therefore, multi-materials are being used to effectively use steel parts such as high-strength s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R19/24B60R19/04
CPCB60R19/04B60R19/24B60R19/34B21D39/044B21D39/08B21D39/203B21D53/88B60R19/18B60R2019/1806B62D21/15
Inventor 桥村彻山川大贵
Owner KOBE STEEL LTD
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