Title:
ENERGY ABSORBER
Document Type and Number:
WIPO Patent Application WO/2017/009018
Kind Code:
A3
Abstract:
An energy absorber comprises a bar extending along a longitudinal axis and arranged to be moved along the longitudinal axis upon a tensile force acting on the bar along the longitudinal axis. The energy absorber comprises a first energy absorbing means and a second energy absorbing means extending along the longitudinal axis. The energy absorber comprises a coupling mechanism for coupling the second energy absorbing means to the bar. The bar is arranged to activate energy absorption of the first energy absorbing means upon movement of the bar along the longitudinal axis. The coupling mechanism comprises at least one force transferring element arranged to transfer force from the bar to the second energy absorbing means upon activation by at least one trigger element. The trigger element is arranged to be subjected to a trigger load as the bar is moved along the longitudinal axis, wherein the trigger load is proportional to velocity of the bar such that a higher velocity results in a higher trigger load. The trigger element is displaceably arranged relatively its unloaded position upon loading and, simultaneously, constrained from displacing by a constraining force acting in opposite direction of the trigger load. The trigger element is arranged to be displaced for activating the force transferring element for coupling and activation of the second energy absorbing means to the bar when the velocity of the bar is higher than a first pre-determined non-zero amount.
Inventors:
ERIKSSON INGVAR (SE)
LINDERHOLM DAG (SE)
SVENSSON STEFAN (SE)
ENESTRÖM MAGNUS (SE)
AXELSSON DANIEL (SE)
LINDERHOLM DAG (SE)
SVENSSON STEFAN (SE)
ENESTRÖM MAGNUS (SE)
AXELSSON DANIEL (SE)
Application Number:
PCT/EP2016/064523
Publication Date:
February 16, 2017
Filing Date:
June 23, 2016
Export Citation:
Assignee:
SAFESEAT IP AB (SE)
International Classes:
F16F15/02
Domestic Patent References:
| WO2015107134A2 | 2015-07-23 |
Foreign References:
| DE102010013935A1 | 2011-10-06 | |||
| EP2872360A2 | 2015-05-20 |
Attorney, Agent or Firm:
KRANSELL & WENNBORG KB (SE)
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