主权项 |
1. A lock assembly comprising:
a lock barrel comprising a plurality of passages and being configured to be received in a lock body and to be rotatable from a locked position to an unlocked position at a shear line relative to the lock body; a key slot in communication with the plurality of passages of the lock barrel, the key slot having a lowest part that is positioned furthest away from the plurality of passages of the lock barrel; a plurality of first pins, each having a first pin key engaging surface and each received in one of the plurality of passages of the lock barrel; a plurality of second pins, each biased towards a paired first pin by a pin biasing means; and an element, having an element key bitting cut engaging surface positioned in one of the plurality of passages of the lock barrel, the element being at least one of a wafer or a pin connected to a column, the pin including the element key bitting cut engaging surface, wherein:
(a) the element is biased towards the lowest part of the key slot by at least one of:
(i) an element biasing means engaging an element biasing means engaging surface on the element; or(ii) an element pin, biased by an element pin biasing means, contacting the element;(b) in the locked position at least one of the element or the element pin interferes with the shear line;(c) when the element is a pin connected to a column, the pin extends in a direction opposite to that in which the element is biased and the column extends in the direction of the bias; and(d) in the locked position, the element key bitting cut engaging surface is located in a position which is further from the lowest part of the key slot than the positions of each of the first pin key engaging surfaces. |