| 摘要 |
PROBLEM TO BE SOLVED: To reduce the costs of a bicycle lock having a locking mechanism part built into one block, by reducing the number of part items of the lock for facilitating assembly and for easily dealing with different sizes. SOLUTION: A block 1 molded into an approximately flat body having planes at its top and bottom is formed with a slot 2 for a key 3, the slot having an opening on one side of the block. A shaft hole 9' for the operational fulcrum shaft 9 of the key and a plurality of size setting holes 7 aligned along the insertion direction of the key are provided inside the slot 2, with the shaft hole and the size setting holes being open to one of the planes of the block. Also, a fitting hole 4 for a locking lever 5, having an opening on the other side of the block 1, is provided continuously to cross the inner end of the slot 2. The operational fulcrum shaft 9 of the key is passed through the shaft hole 9' and pins 8 of a certain size are passed through the size setting holes 7 as they are appropriately spaced apart from one another. A coil spring 6 and a locking lever 5 are fitted into the fitting hole 4 and the block 1 is fixed to a predetermined mounting part formed inside a bicycle lock body 10.
|
