Patent ID: 8128170

Claim:
A reclining device of a seat for a vehicle comprising: a cam lever ( 50 ) that is disposed between a plate holder [ 10 ) and a sector tooth ( 20 ) to be elastically rotated by a cam spring ( 60 ) and through which a shaft ( 40 ) passes; and a plurality of pawl teeth ( 70 ), each pawl tooth ( 70 ) having a protrusion groove ( 71 ), which is fitted around a rotational center protrusion ( 11 ) of the plate holder ( 10 ) to make a seesaw-type rotation while contacting with the cam lever ( 50 ) that rotates, and have both sides ( 72 , 73 ) that face a circumferential direction of the plate holder ( 10 ) and are guided by a guide protrusion ( 12 ) of the plate holder ( 10 ), wherein pressing protrusions ( 72 a , 73 a ) and fitting grooves ( 72 b , 73 b ), which are engaged with the guide protrusion ( 12 ) when each pawl tooth ( 70 ) is separated from the rotational center protrusion ( 11 ) by an external force, are continuously formed on both sides ( 72 , 73 ) of the pawl tooth ( 70 ).