Patent ID: 7849867

Claim:
A locking device for a tent comprising: (a) a pole having a lock hole; (b) a lock base installed to be moveable upward and downward relative to the pole; (c) a lock pin, provided to be movable relative to the lock base in a longitudinal direction, thus enabling the lock pin to move from a locking position in which the lock pin enters the lock hole to an unlocking position in which the lock pin is disposed away from the lock hole; (d) an elastic body adapted to push the lock pin mounted on the lock base towards the locking position all the time, (e) an operating lever rotatably mounted on the lock base and adapted to move the lock pin to the unlocking position; (f) a coming-off prevention and holding means adapted to place the lock pin in a locked safety position, whereby direct transition from the locked safety position to the unlocking position is prevented, wherein the coming-off prevention and holding means is installed between the lock base and the lock pin, and wherein the lock pin provided movably in the longitudinal direction to the lock base is also pivotally movable about an axis of the longitudinal direction; (g) a rotation operating body provided on the lock pin, with which an operation of rotation becomes possible from outside; (h) a rotation regulating mechanism provided between the lock pin and the lock base, with which the lock pin can be placed either in the locked safety position or in an operational orientation by regulating the rotation of the lock pin; and (i) a coming-off prevention mechanism provided between the lock pin and the lock base, wherein the coming-off prevention mechanism prevents the lock pin from moving in the longitudinal direction when the lock pin is in the locked safety position, but also allows the lock pin to move in the longitudinal direction when the lock pin is in the operational orientation, wherein the rotation regulating mechanism comprises i. an oval shaped brim piece disposed on the lock pin; and ii. a rotational stop disposed on the lock base, wherein the rotational stop makes contact with an end surface of the brim piece when the lock pin is in the locked safety position and when the lock pin is in the operational orientation, and wherein the coming-off prevention mechanism includes i. the brim piece of the rotation regulating mechanism; and ii. a coming-off prevention piece mounted on the lock base, wherein the coming-off prevention mechanism allows the lock pin to engage the coming-off prevention piece with the brim piece when the lock pin is in the locked safety position and prevents the lock pin from engaging the coming-off prevention piece with the brim piece when the lock pin is in the operational orientation.