| CPC B60R 9/042 (2013.01) [B60R 9/045 (2013.01)] | 7 Claims |
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1. A multi-lever lifting device for a vehicle with improved efficiency, the multi-lever lifting device comprising:
a lower frame (100) fixed to a roof of the vehicle, and provided at a rear end thereof with a fixed shaft (110);
an upper frame (200) having a size corresponding to the lower frame, and provided to cover the lower frame at a roof position;
a multi-lever folded at the roof position and deployed at a loading/unloading position, and including
a first lever (300) provided between the lower frame (100) and the upper frame (200), seated on the lower frame (100), and configured to rotate about the fixed shaft (110),
a second lever (400) having a rear end hinge-coupled to a front end of the first lever (300) by a first rotation shaft (330), and seated on the lower frame (100) in an opposite direction to the first lever, and
a third lever (500) having a rear end hinge-coupled to a front end of the second lever (400) by a second rotation shaft (430), having a front end provided with the upper frame, and seated on the lower frame (100);
an outer rotation shaft (340) having a concentric shape, and configured to rotate independently about the first rotation shaft (330),
wherein the outer rotation shaft (340) is integrally coupled to the second lever so as to rotate,
a first power transmission device (320) for connecting the fixed shaft (110) to the first rotation shaft (330) and connecting the fixed shaft (110) to the outer rotation shaft (340) is provided,
a second power transmission device (420) is provided between the first rotation shaft (330) and the second rotation shaft (430), and
the second rotation shaft is integrally coupled to the third lever so as to rotate.
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