发明名称 | Bumper | ||
摘要 | Providing a bumper absorbing large amount of impact energy with respect to both a light collision and a heavy collision, and preventing the reinforcement beam from bending and protruding backward at a portion where an obstacle collides and from displacing backward in this protruding state. Provided is a bumper for vehicles including a reinforcement beam made of metal and a pair of support members having a hollow cross section, protruding from a vehicle frame, and supporting the reinforcement beam therebetween. A quenched region is provide over a portion including a middle of the reinforcement beam. Unquenched portions are provided on the pair of connecting portions or a pair of adjacent portions inside the pair of connecting portions. | ||
申请公布号 | US8770636(B2) | 申请公布日期 | 2014.07.08 |
申请号 | US201314011485 | 申请日期 | 2013.08.27 |
申请人 | Asteer Co., Ltd. | 发明人 | Shimotsu Koji |
分类号 | B60R19/03 | 主分类号 | B60R19/03 |
代理机构 | DLA Piper LLP (US) | 代理人 | DLA Piper LLP (US) |
主权项 | 1. A bumper for vehicles comprising: a reinforcement beam made of metal; and a pair of support members having a hollow cross section, protruding from a vehicle frame, and supporting the reinforcement beam therebetween; wherein the reinforcement beam is provided with a pair of connecting portions to which the pair of support members is connected, the reinforcement beam is provided with a quenched region and unquenched portions, a mechanical strength of the unquenched portions is smaller than the mechanical strength of the pair of support members and the quenched region, the quenched region is provide over a portion including a middle of the reinforcement beam, the unquenched portions are provided on the pair of connecting portions or a pair of adjacent portions inside the pair of connecting portions, the unquenched portions are provided only over corners in a cross section of the reinforcement beam. | ||
地址 | Okayama JP |