Patent ID: 8245604
Filing Date: 2012-08-21
Classification: B25B,B25G

Abstract:
1. A flexible wrench comprising: a handle defining a proximal end; and a tool head defining a pivotal portion pivotally connected to the proximal end of the handle, wherein the pivotal portion includes a retaining portion formed thereon, with the retaining portion forming a plurality of teeth, and with the tool head further including a driving member formed thereon; wherein the handle includes a chamber defined thereon, and the chamber has an inner periphery which forms a recess thereon receiving a resilient device, wherein a controller is rotatably installed to the chamber with a plurality of positions and includes a peripheral wall engaged by the resilient device, wherein an aperture extending from the inner periphery of the chamber toward the proximal end of the handle is adjacent to the pivotal portion of the tool head, wherein a retaining member is inserted in the aperture, with the retaining member defining a proximal end and a distal end abutted against the controller, wherein the proximal end of the retaining member is pushed out of the aperture with a different exposing distance for each of the controller's positions so as to engage the tool head while the controller is rotated to different positions; wherein the controller includes a slot extending in the peripheral wall thereof, and the slot includes a pushing portion and a retracting portion formed thereon, with which the distal end of the retaining member selectively engages, with the controller further having the peripheral wall abutted to the inner periphery of the chamber, wherein the pushing portion and the retracting portion are flat surfaces, wherein the controller has a rotating center that defines a common center of the controller, and a perpendicular distance between the pushing portion and the common center of the controller is different from that between the retracting portion and the common center of the controller, wherein the proximal end of the retaining member is engaged with the tool head while the pushing portion is abutted against the distal end of the retaining member, and the retaining member is retracted and disengaged from the tool head while the retracting portion is aligned with and abutted against the distal end of the retaining member.