| 摘要 |
In a tie including an elongated tongue with a locking head at one end of the tongue, a tip at the other end of the tongue, a first set of ratchet teeth extending along one broad side of the tongue and a second set of ratchet teeth extending along the other broad side of the tongue, wherein the locking head has sides defining an opening for receiving the tip of the tongue, a movable pawl that is hinged at one side of the opening and an abutment surface that is across the opening from the pawl, wherein the pawl has pawl teeth disposed for engaging the first set of ratchet teeth, and wherein stationary teeth are disposed on the abutment surface for engaging the second set of ratchet teeth, the stationary teeth on the abutment surface have a greater lateral extension with respect to the direction of insertion of the tongue through the opening than do the pawl teeth and the second set of ratchet teeth have a greater lateral extension with respect to the direction of insertion than do the first set of ratchet teeth. Preferably, the stationary teeth on the abutment surface extend to the full width of the opening and the second set of ratchet teeth extend to the lateral edges of the tongue.
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