Ratchetable open-ended wrench

摘要

A ratchetable open-ended wrench includes a handle for a hand to grasp, a wrench head located on one end of the handle, and a fastener room located in the wrench head for accommodating a workpiece to be rotated. The wrench head further includes a first jaw having a first driving wall, a second jaw having a second driving wall facing the first driving wall, an inner wall extending from the second driving wall into the second jaw, a concavity, an auxiliary jaw retracting opening, an auxiliary jaw capable of longitudinally sliding into the auxiliary jaw retracting opening in an elastic way, and an auxiliary jaw limiting member coupled to a limiting slot. The auxiliary jaw further includes an exterior end having a pillow in contact with the driving wall and a pushing surface for working together with the first jaw to grip the workpiece under operation, an interior end, and a limiting slot.

主权项

1. A ratchetable open-ended wrench for turning a work piece having a drive end with at least one pair of opposed contact edges, comprising:
a handle with a first end; a wrench head including a base portion disposed adjacent the first end of the handle; a first jaw extending outwardly from the base portion of the wrench head, the first jaw including a first driving wall disposed in a first plane; a second jaw extending outwardly from the base portion of the wrench head such that the first jaw and the second jaw define a drive opening configured to receive the drive end of the fastener, the second jaw including a rear-end wall disposed in a second plane adjacent the base portion of the wrench head, the rear-end wall being substantially parallel to the first driving wall; and an auxiliary jaw including a driving surface, the auxiliary jaw being slidably received in the second jaw such that the rear-end wall is disposed between the auxiliary jaw and the base portion of the wrench head, wherein the drive end of the fastener is slidably receivable in the drive opening of the wrench head such that the fastener can be rotated in a first direction by the first driving wall and the driving surface of the auxiliary jaw.