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    • 3. 发明授权
    • Head rests
    • 头枕
    • US07484797B2
    • 2009-02-03
    • US11319027
    • 2005-12-27
    • Fumitoshi AkaikeSeiya NishimuraFumio YajimaNobumasa Misaki
    • Fumitoshi AkaikeSeiya NishimuraFumio YajimaNobumasa Misaki
    • B60N2/42B60N2/48
    • B60N2/853B60N2/821B60N2/829B60N2/85
    • A head rest of a vehicle seat may include a head support portion for supporting a head of a passenger, and a drive unit for moving the head support portion. The drive unit has a moving mechanism that is arranged and constructed to move the head support portion vertically and back and forth relative to the vehicle seat, a head detecting device provided to the head support portion so as to detect a clearance between the passenger head and the head support portion and to generate a control signal representative of the detected clearance, and a controller that can control the moving mechanism. The controller controls the moving mechanism so as to move the head support portion to a first proximity position in which the head detecting device may have a predetermined sensitivity relative to passenger head if the head support portion does not reach the first proximity position. The controller further controls the moving mechanism based on the control signal from the head detecting device so as to move the head support portion to a second proximity position which corresponds to an optimal proximity position relative to the passenger head.
    • 车辆座椅的头枕可以包括用于支撑乘客的头部的头部支撑部分和用于移动头部支撑部分的驱动单元。 驱动单元具有移动机构,该移动机构被布置和构造成使头部支撑部分相对于车辆座椅垂直和前后移动,头部检测装置设置在头部支撑部分上,以便检测乘客头部和 头部支撑部分并且产生表示检测到的间隙的控制信号,以及可以控制移动机构的控制器。 控制器控制移动机构,以便如果头部支撑部分没有到达第一接近位置,则头部支撑部分移动到第一接近位置,在该第一接近位置,头部检测装置可相对于乘客头具有预定的灵敏度。 控制器基于来自头部检测装置的控制信号进一步控制移动机构,以便将头部支撑部分移动到相对于乘客头部的最佳接近位置对应的第二接近位置。