Patent ID: 8047341

Claim:
A cylinder apparatus adapted to be mounted on a vehicle, the cylinder apparatus comprising: a cylinder part; a rod extending from one end of said cylinder part and having a mounting portion formed at a distal end of said rod for connection to a body of the vehicle; and a lock mechanism capable of locking said rod near its minimum length position; said lock mechanism including: a lock member secured to the one end of said cylinder part from which said rod extends to the outside by the one end of said cylinder part being caulked inward, the lock member having a first engaging portion bent from said lock member; and a cap member secured to the distal end portion of said rod to face said lock member, said cap member having a second engaging portion provided by a hole formed in said cap member; wherein relative rotation between said lock member and said cap member causes said first engaging portion of said lock member to engage with said second engaging portion of said cap member at a side of said second engaging portion closer to the distal end of said rod, thereby locking said rod.