| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power door with a small sized driving spindle capable of achieving cost down. <P>SOLUTION: A power door includes: a back door 11; a driving spindle 21 comprising a main body portion 23 mounted to a body 13, a spindle 25 driven by a driving source of the main body portion 23 and mounted to the back door 11 and a first spring 37 biasing the spindle 25; and an assist spring 121 comprising a main body portion 123 mounted to the body 13, a spindle 125 mounted to the back door 11 and a second spring 137 biasing the spindle 125. One of a moment arm length A of the driving spindle 21 side when the back door 11 is fully closed and a moment arm length A' of the assist spring 121 side when the back door 11 is fully closed is set to be shorter than the other one. <P>COPYRIGHT: (C)2013,JPO&INPIT |
