Patent ID: 7967327

Claim:
A knee protection device for a vehicle, including, a lower crash pad including an internal space enclosed by a front surface and a rear surface, the internal space communicating with an inflator, wherein the rear surface is formed to be folded by a plurality of creases, and the front surface is configured to be inflated forwards while the rear surface is smoothed out with unfolding of the creases during gas deployment by the inflator, thus protecting a passenger's knees; a mounting unit provided on the rear surface of the lower crash pad and coupled to a vehicle body; and an inflation limit unit connected between the front surface and the rear surface of the lower crash pad, and limiting a forward moving distance of the front surface from the rear surface when the lower crash pad inflates; wherein the mounting unit includes, a support panel installed to be in close contact with the rear surface of the lower crash pad; and a locking bracket coupling the support panel to the vehicle body; wherein the plurality of creases are provided on an upper portion of the rear surface of the lower crash pad, a lower portion of the rear surface is formed in a stepped shape, the support panel is formed in a stepped shape and is in close contact with the lower portion of the rear surface, and the locking bracket is installed to be in close contact with the support panel, with an end of the locking bracket being formed in a stepped shape corresponding to the stepped shape of the support panel; and wherein upper and lower fitting protrusions each having a locking groove are provided on the support panel and pass through corresponding upper and lower fitting holes of the locking bracket, and a spring is installed between the upper and lower fitting protrusions and is supported and pulled at each of opposite ends thereof by the locking groove, thus coupling the support panel with the locking bracket.