Patent ID: 8613353

Claim:
A parking lock device mounted on a transmission of a vehicle, said transmission comprising a housing and an output shaft, said park lock device comprising: a parking pawl having a pawl portion mounted on the housing of said transmission; a first coupling member comprising a through hole at a center thereof, said through hole being spline-fitted to a rear end portion of the output shaft of said transmission; a second coupling member coupled directly to said first coupling member, the second coupling member being supported by the housing of the transmission through a bearing and being provided with an extended shaft portion formed in a same shape as the rear end portion of the output shaft of said transmission; and a coupling coupled to said extended shaft portion of said second coupling member, said coupling being connected to a propeller shaft of said vehicle, wherein a continuously indented portion is formed along an outer circumferential portion of one of said first coupling member and said second coupling member, such that the pawl portion of said parking pawl is brought into mesh with a dented portion of said continuously indented portion when said vehicle is brought to a park-locked state, wherein said first coupling member further comprises a flange portion, and wherein said second coupling member is fastened to an end surface of said flange portion by using a fastening fitting, and said continuously indented portion is formed along the outer circumferential portion of said flange portion of said first coupling member.