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US 8,408,100 B2Granted
Open end wrench capable of fast driving
OwnerWen-Pin Liuinventor
Life of this patent
Estimating the term…
Abstract
An open end wrench includes first and second jaws formed on a jaw portion. The first jaw includes an arcuate sliding groove having an arcuate sliding wall. A slide is received in the sliding groove and includes an arcuate sliding face slideable along the sliding wall. An arcuate guiding slot is formed in the slide. The sliding face, sliding wall and guiding slot are free of holes, grooves, and recesses. A guide is fixed in the sliding groove and received in the guiding slot. The guiding slot includes an abutting end and a pressing end. The abutting end is in contact with the guide when the slide is in an initial position not engaged with a workpiece. An elastic device has two ends respectively abutting the guide and the pressing end of the guiding slot for biasing the slide to the initial position.
Claims18
An open end wrench capable of fast driving a workpiece, with the workpiece including first, second, third, fourth, fifth, and sixth sides respectively having first, second, third, fourth, fifth, and sixth faces in a first rotating direction and respectively having first, second, third, fourth, fifth, and sixth force-receiving faces in a second rotating direction, with the open end wrench comprising, in combination:
- a body including a handle and a jaw portion formed on an end of the handle, with spaced first and second jaws formed on an end of the jaw portion opposite to the handle, with the jaw portion including a throat intermediate the first and second jaws, with the throat and the first and second jaws together defining a wrenching space adapted for receiving the workpiece, with the first jaw including a force-applying face facing the wrenching space and facing a distal end of the second law, with the force-applying face adapted to correspond to the first force-receiving face in the first rotating direction of the workpiece, with the jaw portion further including an arcuate sliding groove facing the wrenching space, with the sliding groove including spaced, first and second support walls and an arcuate sliding wall extending between the first and second support walls, with the sliding wall being free of holes, grooves, and recesses and having an arcuate face, with a guide provided in the sliding groove and having two ends fixed to the first and second support walls;
- a slide slideably received in the sliding groove, with the slide including a first side having an arcuate sliding face slideable along the sliding wall of the sliding groove, with the sliding face being free of holes, grooves, and recesses, with the slide further including a second side opposite to the first side of the slide, with the second side of the slide including a first wrenching face located outside of the sliding groove, with the first wrenching face adapted to correspond to the fourth force-receiving face in the first rotating direction of the workpiece, with the slide further including a top face and a bottom face, with the slide further including a second wrenching face at an angle of 120° to the first wrenching face, with the second wrenching face adapted to correspond to the third force-receiving face in the first rotating direction of the workpiece, with the slide further including an arcuate guiding slot extending from the top face through the bottom face, with the guiding slot free of holes, grooves, and recesses, with the guide received in the guiding slot, preventing the slide from disengaging from the sliding groove, with the guiding slot including an abutting end and a pressing end, with the abutting end being in contact with the guide when the slide is in an initial position not engaged with the workpiece;
- and
- an elastic device having two ends respectively abutting the guide and the pressing end of the guiding slot for biasing the slide to the initial position.
1 more element
An open end wrench capable of fast driving a workpiece, with the workpiece including first, second, third, fourth, fifth, and sixth sides respectively having first, second, third, fourth, fifth, and sixth faces in a first rotating direction and respectively having first, second, third, fourth, fifth, and sixth force-receiving faces in a second rotating direction, with the open end wrench comprising, in combination:
- a body including a handle and a jaw portion formed on an end of the handle, with spaced first and second jaws formed on an end of the jaw portion opposite to the handle, with the jaw portion including a throat intermediate the first and second jaws, with the throat and the first and second jaws together defining a wrenching space adapted for receiving the workpiece, with the first jaw including a force-applying face facing the wrenching space and facing a distal end of the second jaw, with the force-applying face adapted to correspond to the first force-receiving face in the first rotating direction of the workpiece, with the throat including a push face facing the wrenching space, with the push face at an angle of 120° to the force-applying face of the first jaw, with the push face of the throat adapted to correspond to the second force-receiving face in the first rotating direction of the workpiece, with the jaw portion further including an arcuate sliding groove facing the wrenching space, with the sliding groove including spaced, first and second support walls and an arcuate sliding wall extending between the first and second support walls, with the sliding wall being free of holes, grooves, and recesses and having an arcuate face, with a guide provided in the sliding groove and having two ends fixed to the first and second support walls;
- a slide slideably received in the sliding groove, with the slide including a first side having an arcuate sliding face slideable along the sliding wall of the sliding groove, with the sliding face being free of holes, grooves, and recesses, with the slide further including a second side opposite to the first side of the slide, with the second side of the slide including a first wrenching face located outside of the sliding groove, with the first wrenching face adapted to correspond to the fourth force-receiving face in the first rotating direction of the workpiece, with the slide further including a top face and a bottom face, with the slide further including an arcuate guiding slot extending from the top face through the bottom face, with the guiding slot free of holes, grooves, and recesses, with the guide received in the guiding slot, preventing the slide from disengaging from the sliding groove, with the guiding slot including an abutting end and a pressing end, with the abutting end being in contact with the guide when the slide is in an initial position not engaged with the workpiece;
- and
- an elastic device having two ends respectively abutting the guide and the pressing end of the guiding slot for biasing the slide to the initial position.
1 more element
An open end wrench capable of fast driving a workpiece, with the workpiece including first, second, third, fourth, fifth, and sixth sides respectively having first, second, third, fourth, fifth, and sixth faces in a first rotating direction and respectively having first, second, third, fourth, fifth, and sixth force-receiving faces in a second rotating direction, with the open end wrench comprising, in combination:
- a body including a handle and a jaw portion formed on an end of the handle, with spaced first and second jaws formed on an end of the jaw portion opposite to the handle, with the jaw portion including a throat intermediate the first and second jaws, with the throat and the first and second jaws together defining a wrenching space adapted for receiving the workpiece, with the first jaw including a force-applying face facing the wrenching space and facing a distal end of the second jaw, with the force-applying face adapted to correspond to the first force-receiving face in the first rotating direction of the workpiece, with the jaw portion further including an arcuate sliding groove facing the wrenching space, with the sliding groove including spaced, first and second support walls and an arcuate sliding wall extending between the first and second support walls, with the sliding wall being free of holes, grooves, and recesses and having an arcuate face, with a guide provided in the sliding groove and having two ends fixed to the first and second support walls;
- a slide slideably received in the sliding groove, with the slide including a first side having an arcuate sliding face slideable along the sliding wall of the sliding groove, with the sliding face being free of holes, grooves, and recesses, with the slide further including a second side opposite to the first side of the slide, with the second side of the slide including a first wrenching face located outside of the sliding groove, with the first wrenching face adapted to correspond to the fourth force-receiving face in the first rotating direction of the workpiece, with the slide further including a top face and a bottom face, with the slide further including an arcuate guiding slot extending from the top face through the bottom face, with the guiding slot free of holes, grooves, and recesses, with the guide received in the guiding slot, preventing the slide from disengaging from the sliding groove, with the guiding slot including an abutting end and a pressing end, with the abutting end being in contact with the guide when the slide is in an initial position not engaged with the workpiece;
- and
- an elastic device having two ends respectively abutting the guide and the pressing end of the guiding slot for biasing the slide to the initial position, with the elastic device including an elastic element received in the guiding slot of the slide, with the first and second support walls of the sliding groove parallel to each other and having a spacing therebetween, with the top and bottom faces of the slide parallel to each other and having a height in a height direction of the slide equal to the spacing, with the guiding slot of the slide having a height in the height direction of the slide equal to the height of the slide, with the guiding slot having a width in a width direction perpendicular to the height direction of the guiding slot, with the width of the guiding slot equal to a diameter of the guide, with the height of the guiding slot larger than 1.5 times the width of the guiding slot, with the elastic element received in the guiding slot having a height in the height direction of the slide not larger than the height of the guiding slot, with the height of the elastic element larger than the width of the guiding slot, with the height of the elastic element larger than 0.5 times the height of the guiding slot.
1 more element
An open end wrench capable of fast driving a workpiece, with the workpiece including first, second, third, fourth, fifth, and sixth sides respectively having first, second, third, fourth, fifth, and sixth faces in a first rotating direction and respectively having first, second, third, fourth, fifth, and sixth force-receiving faces in a second rotating direction, with the open end wrench comprising, in combination:
- a body including a handle and a jaw portion formed on an end of the handle, with spaced first and second jaws formed on an end of the jaw portion opposite to the handle, with the jaw portion including a throat intermediate the first and second jaws, with the throat and the first and second jaws together defining a wrenching space adapted for receiving the workpiece, with the first jaw including a force-applying face facing the wrenching space and facing a distal end of the second jaw, with the force-applying face adapted to correspond to the first force-receiving face in the first rotating direction of the workpiece, with the jaw portion further including an arcuate sliding groove facing the wrenching space, with the sliding groove including spaced, first and second support walls and an arcuate sliding wall extending between the first and second support walls, with the sliding wall being free of holes, grooves, and recesses and having an arcuate face, with a guide provided in the sliding groove and having two ends fixed to the first and second support walls;
- a slide slideably received in the sliding groove, with the slide including a first side having an arcuate sliding face slideable along the sliding wall of the sliding groove, with the sliding face being free of holes, grooves, and recesses, with the slide further including a second side opposite to the first side of the slide, with the second side of the slide including a first wrenching face located outside of the sliding groove, with the first wrenching face adapted to correspond to the fourth force-receiving face in the first rotating direction of the workpiece, with the slide further including a top face and a bottom face, with the slide further including an arcuate guiding slot extending from the top face through the bottom face, with the guiding slot free of holes, grooves, and recesses, with the guide received in the guiding slot, preventing the slide from disengaging from the sliding groove, with the guiding slot including an abutting end and a pressing end, with the abutting end being in contact with the guide when the slide is in an initial position not engaged with the workpiece;
- and
- an elastic device having two ends respectively abutting the guide and the pressing end of the guiding slot for biasing the slide to the initial position, with the elastic device including a base having a first side and two elastic elements mounted to the first side of the base, with the first and second support walls of the sliding groove parallel to each other and having a spacing therebetween, with the top and bottom faces of the slide parallel to each other and having a height in a height direction of the slide equal to the spacing, with the guiding slot of the slide having a height in the height direction of the slide equal to the height of the slide, with the guiding slot having a width in a width direction perpendicular to the height direction of the guiding slot, with the width of the guiding slot equal to a diameter of the guide, with the height of the guiding slot larger than 1.5 times the width of the guiding slot, with the two elastic elements spaced in the height direction of the slide, with the two elastic elements attached to the base having an overall height in the height direction of the slide not larger than the height of the guiding slot, with the overall height of the two elastic elements larger than the width of the guiding slot, with the overall height of the two elastic elements larger than 0.5 times the height of the guiding slot.
1 more element
Dependencies are inferred from the claim text.