초록 ▼

A U-shaped lock includes a housing, a shackle holder and a cap closing the housing. A U-shaped shackle has two ends inserted in two shackle holes in the cap and the shackle holder. A lock unit with a pin tumbler mechanism is fixed in a lock hole of the shackle holder, being rotated for two stages of

A U-shaped lock includes a housing, a shackle holder and a cap closing the housing. A U-shaped shackle has two ends inserted in two shackle holes in the cap and the shackle holder. A lock unit with a pin tumbler mechanism is fixed in a lock hole of the shackle holder, being rotated for two stages of angles by a key to move a pull rod unit fitted in a horizontal lengthwise hole on the lock hole in the shackle holder outward or inward to lock or unlock the two ends of the shackle.

대표청구항 ▼

[ What is claimed is:] [1.] A U-shaped lock comprising:an elongate housing having peripheral walls, an open upper side, and a closed lower side;a shackle holder mounted within said elongate housing and having a lock hole in a center for receiving a lock unit therein, the shackle holder further havin

[ What is claimed is:] [1.] A U-shaped lock comprising:an elongate housing having peripheral walls, an open upper side, and a closed lower side;a shackle holder mounted within said elongate housing and having a lock hole in a center for receiving a lock unit therein, the shackle holder further having a wall bounding an elongated cylindrical opening at opposite ends of the shackle holder and a wall bounding an elongated lengthwise pull rod hole, the lengthwise pull rod hole opening into the cylindrical openings at opposite ends of the shackle holder and the lock hole wherein said shackle holder comprises two symmetrical pieces attached together, without treating an outer surface of the shackle holder;an elongate cap attached to said elongate housing to enclose said shackle holder therein, said elongate cap having a shackle hole respectively in opposite ends aligned with the cylindrical opening in opposite ends of said shackle holder;a lock unit mounted in said lock hole of said shackle holder;a U-shaped shackle having two opposite ends, one end received in each of the elongated cylindrical openings of the shackle holder such that the opposite ends are within the wall bounding the cylindrical openings and the peripheral walls of the housing; and,pull rods located in the lengthwise pull rod hole and attached to the lock unit such that, when the lock unit is in a first position, the pull rods engage the ends of the U-shaped shackle to lock the shackle into the housing, and when the lock unit is in a second position, the pull rods are disengaged from the ends of the shackle enabling the shackle to be removed from the housing.