Patent ID: 7360285

Claim:
An automatic lock slider for a slide fastener, the slider comprising: a slider body having a fastener element guide channel; a locking lever pivotally mounted on the slider body, the locking lever having a locking pawl at one end; resilient means urging the locking pawl into the fastener element guide channel; a connecting ring, a portion of which is disposed between the slider body and the locking lever; and a knob mounted on the connecting ring, wherein when the knob is pulled in a first direction a first portion of the knob bears on the slider body so that the connecting ring withdraws the locking pawl from the fastener element guide channel and when the knob is pulled in a second direction a second portion of the knob bears on the slider body so that the connecting ring withdraws the locking pawl from the fastener element guide channel; wherein the knob is pivotally mounted relative to the locking lever, the slider body has a fastener element guide post; and the knob comprises a cavity to accommodate a portion of the fastener element guide post of the slider body, thereby preventing sideways movement and twisting of the knob relative to the slider body.