Patent ID: 8312852

Claim:
A variable tappet comprising: an inner tappet body of which a latching member connecting hole is formed thereto; a protrude portion formed in the latching member connecting hole; an outer tappet body which is disposed around the inner tappet body and slidable to the inner tappet body; and a latching member which is slidably mounted to the outer tappet body and selectively connected to the latching member connecting hole; wherein the latching member comprises: a latching pin of which a latching pin hole is formed therein toward the inner tappet body and which is slidably disposed within a hydraulic pressure chamber formed in the outer tappet body, wherein a hydraulic pressure supply portion selectively supplies hydraulic pressure to the hydraulic pressure chamber to push the latching pin; an elastic member disposed within the latching pin hole; and a plate which is slidably disposed within the latching pin hole and elastically supported by the elastic member.