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Extruded reinforcement beam having programmed deformation

A technology of reinforcing beams and local deformation, applied in the field of reinforcing beams of doors, can solve problems such as complex manufacturing and achieve the effect of minimizing scrap

Active Publication Date: 2018-04-17
PEZHO SITROEN AUTOMOBILS SA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Manufacture of such beams is complicated as it requires specific tools at the pressing head to vary the thickness of the walls of the beam during the pressing operation

Method used

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  • Extruded reinforcement beam having programmed deformation
  • Extruded reinforcement beam having programmed deformation
  • Extruded reinforcement beam having programmed deformation

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Embodiment Construction

[0039] The accompanying drawings are schematic diagrams to aid in the understanding of the present invention. Components are not necessarily shown to scale. Like reference numerals correspond to like parts between the various figures.

[0040] figure 1 The manufacturing method of the reinforcing beam according to the present invention is schematically shown. The method comprises a first step A of pressing the profile, followed by a step B of cutting sections of the profile to desired lengths, and then a step C of locally deforming the sections of the profile; advantageously, step C also includes a step of bending.

[0041] The length of the profile produced by pressing step A is greater than the length of the reinforcing beam to be manufactured. The profile is then cut in step B to obtain sections substantially of the length of the reinforcing beam to be produced.

[0042]Next, during the step C of locally deforming the sections of the profile, one or several weakened area...

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PUM

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Abstract

Method for producing a reinforcement beam for a vehicle, comprising at least one weak zone arranged in such a way that the bending resistance of the beam is less in said weak zone than in the rest ofthe beam, characterised in that it comprises, in order, a step (A) of extruding a profile part, a step (B) of cutting the profile part so as to obtain at least one profile segment, a step (C) of locally deforming the segment of the profile part in order to create the weak zone or zones.

Description

technical field [0001] The invention relates to a reinforcing beam of a vehicle, in particular of a door for limiting intrusion into the cabin in the event of a lateral impact. Background technique [0002] To improve protection in the event of a collision, motor vehicles include beams in certain parts of their structure. These beams allow the transfer of crash energy to the parts of the vehicle structure to which the beams are fastened and thus limit the intrusion into the space behind said beams. Such beams are used, for example, in vehicle side doors, and these beams are often referred to as side impact reinforcement beams. In the door, the side impact reinforcement beam extends between the front and rear edges of the doublure of the door, preferably in an area situated opposite a structural element of the vehicle, for example the front of the vehicle in the case of a front door. Pied and middle legs. Thus, in the event of a side impact, the forces from the impact are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60J5/04
CPCB60J5/0444B60J5/0461B60J5/0443B60J5/0458
Inventor 大卫·菲戈利史蒂芬·梅萨里克劳伦·德鲁奥克里斯蒂安·兰格
Owner PEZHO SITROEN AUTOMOBILS SA