| 摘要 |
<p>Present invention provides a locking cylinder assembly for pin tumbler lock comprising a locking cylinder (2), a locking cylinder housing (1), a wedge (6) and a sleeve (8). The locking cylinder (2) comprises two rows of plurality of holes (2b, 2c), the rows being situated at angle of 180 degree apart from each other and an elongated slot (2a) to slidably receive the key (7). The locking cylinder housing (1) accommodates the locking cylinder (2). The locking cylinder housing (1) comprises four rows (la, lb, lc, 1d) of plurality of holes, the rows being situated at angle of 90 degree from each other and a cylindrical opening (le) to receive the locking cylinder (2). A plurality of operating pins (3a, 3d) are provided which are accommodated inside the plurality of holes of two rows (2b, 2c) of locking cylinder. Further a plurality of driver pins (5a, 5b, 5c, 5d) and associated driver springs (4a, 4b, 4c, 4d) are provided which are accommodated inside the plurality of holes of four rows (la, lb, lc, 1d) of locking cylinder housing. The sleeve (8) is adapted to receive locking cylinder housing (1). The sleeve comprises a hole (8a) to enable receiving of the locking cylinder housing (1). The key (7) having dimples (7a) over the surface. According to present invention upon insertion of the key (7) in locking cylinder (2), the operating pins (3a, 3d) get align with dimples (7a) on the key thereby adjusting driver pins (5a, 5d) and driver springs (4a, 4d) and allows to rotate the locking cylinder (2) and when the locking cylinder (2) rotated by 90 degree, the operating pins (3a, 3d) come in contact with driver pins (5b, 5c) and align with dimples (7a) on key such that key (7) can be take out at 90 degree.</p> |
