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buffer beam

A technology of buffer beams and beams, which is applied to bumpers, vehicle components, pedestrian/passenger safety arrangements, etc., and can solve problems such as stiffness enhancement

Active Publication Date: 2021-08-06
GESTAMP HARDTECH AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Another object of the invention is to achieve a bumper beam with at least two closed cells and reduced weight but still increased stiffness

Method used

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Embodiment Construction

[0015] In the following description and claims, the bumper beam of the present invention is described with reference to a front bumper beam. Accordingly, phrases such as front, rear, rearward, etc. should be read in conjunction with, but not limited to, a front bumper.

[0016] Such as figure 1 As shown, the buffer beam B includes at least two components: a main beam 1 and a beam component 2 . The main beam 1 can be roll formed, cold formed or thermoformed depending on its design. Said at least one beam part 2 is most likely roll formed. In the preferred embodiment both the main beam 1 and the beam part 2 are made of steel, but it should be noted that the main beam and / or the beam part may be made of any other suitable material.

[0017] And, if figure 2 As shown, each crash box 3 is preferably, but not limited to, attached only to the main beam 1 provided with the beam part 2 which in the illustrated embodiment The part 2 has a symmetrical profile in cross-section and s...

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PUM

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Abstract

The invention relates to a bumper beam (B) comprising a main beam (1) and a beam part (2), said beam part being fixedly attached to said main beam (1). Said beam part (2) by itself or together with one or more parts of the main beam (1) forms a closed chamber (C) in the cross-section of the buffer beam, said closed chamber being arranged in said main beam (1) at the upper side (11) or the lower side (12). The closed chamber (C) abuts only the upper side (11) or the lower side (12) of the main beam (1) when viewed along the transverse direction of the main beam (1) One part and the closed chamber extends only over said part, the closed chamber extends along the longitudinal direction of the main beam (1) substantially over the entire length of the main beam (1). Said main beam (1) forms together with said beam part (2) a main closed chamber (M).

Description

technical field [0001] The invention relates to a buffer beam. Background technique [0002] It is known to produce a bumper beam comprising two or more parts, see for example WO 2014 / 142733 which discloses a bumper beam with a cap-like profile with a cap. [0003] For example when producing cars with the same body in white but with different wheel suspensions, the bumper beams will be at different heights depending on the car model. It is therefore economically advantageous to produce a bumper beam with a main body / main beam that can be extended upwards or downwards, or both, in order to account for vertical offsets hit. It is also important that the bumper beam provides a good solution in the event of a vertically offset impact. [0004] purpose of invention [0005] The object of the present invention is to realize a bumper beam which has at least two closed chambers and is so formed that it provides a good solution in the case of vertically offset impacts. [0006] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R19/04
CPCB60R19/12B60R19/18B60R2019/1806B21D5/08B21D53/88B60R2021/0023B60R19/04B60R19/023B60R19/34B60R19/44B60R2019/1826
Inventor A·林德布卢姆
Owner GESTAMP HARDTECH AB