Patent ID: 7523951

Claim:
A wheel suspension arm mounting structure for a vehicle comprising: a vehicle body frame member; at least one arm mounting portion attached to said vehicle body frame member; and a suspension arm for supporting a wheel of the vehicle, said suspension arm being mounted to said arm mounting portion so as to be freely swingable upward and downward relative to said vehicle body frame member, said suspension arm comprising one or more arm members, wherein each of said one or more arm members includes: a suspension arm support shaft; a substantially cylindrical base coupled to an outer peripheral surface of said suspension arm support shaft, so as to be rotatable relative to said suspension arm support shaft; a first mounting boss extending from a first end of said suspension arm support shaft in an axial direction of said suspension arm support shaft; and a second mounting boss extending from a second end of said suspension arm support shaft in the axial direction, wherein said first mounting boss and said second mounting boss each define a bolt insertion hole bored in a direction perpendicular to said suspension arm support shaft to allow a bolt to be inserted in a direction perpendicular to a longitudinal axis of said suspension arm support shaft to fix said suspension arm support shaft to said arm mounting portion.