Torque indicating wrench

A wrench comprising a rod and a casing, the rod having a driven portion, a driving tip, and a straight section therebetween;

• the driven portion having a clamped section, a rotating section and a cantilever section therebetween;
• the clamped section being securely clamped in the casing;
• the rotating section being rotatable between a free position and a biased position;
• wherein in the biased position, the rod closes an electric circuit, activating an indicator;
• wherein the casing comprises a base and a cover secured together;
• wherein in the free position the rotating section of the rod nests in a base channel in the base, substantially below a base inner face;
• and
• wherein in the biased position at least a portion of the rotating section of the rod is located above the base inner face in a rotation relief channel in a cover inner face.

A wrench comprising a rod and a casing, the rod having a driven portion, a driving tip, and a straight section therebetween;

• the driven portion having a clamped section, a rotating section and a cantilever section therebetween;
• the clamped section being securely clamped in the casing;
• the rotating section being rotatable between a free position and a biased position;
• wherein in the biased position, the rod closes an electric circuit, activating an indicator;
• wherein the driven portion is substantially U-shaped.

A wrench comprising:

• a casing;
• a rod at least partially housed in the casing, the rod having a driven portion connected to a driving tip, the driven portion including a clamped section clamped in the casing, and a rotating section connected to the clamped section;
• and
• a battery-powered indicator;
• wherein the rotating section is movable between a free position, and a biased position in which the rotating section closes an electric circuit to thereby activate the indicator;
• and
• wherein at least a portion of the rotating section is urged in a direction of a casing cover to close said electric circuit.

A wrench comprising:

• a casing;
• a rod at least partially housed in the casing, the rod having a driven portion connected to a driving tip, the driven portion including a clamped section clamped in the casing, and a rotating section connected to the clamped section;
• and
• a battery-powered indicator;
• wherein the rotating section is movable between a free position, and a biased position in which the rotating section closes an electric circuit to thereby activate the indicator;
• and wherein:
• the driven portion further comprises a cantilever section connecting the clamped section to the rotating section, the clamped section and the rotating section being substantially perpendicular to the cantilever section;
• the rod further comprises a straight section connecting the driven portion to the driving tip;
• and
• the cantilever section is substantially parallel to the straight section of the rod.

A wrench comprising:

• a casing;
• a rod at least partially housed in the casing, the rod having a driven portion connected to a driving tip, the driven portion including a clamped section clamped in the casing, and a rotating section connected to the clamped section;
• and
• a battery-powered indicator;
• wherein the rotating section is movable between a free position, and a biased position in which the rotating section closes an electric circuit to thereby activate the indicator;
• and
• further comprising an adjusting bolt threaded in an adjusting bore associated with the casing, the adjusting bolt configured to adjust an amount of torque required to activate the indicator.