US 12,734,655 B2Granted

Digitally displaying torque wrench with mechanical torque adjustment

OwnerBobby Huinventor

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Abstract

A digitally displaying torque wrench with mechanical torque adjustment includes a main body, a wrenching device, a torque releasing device, a shaped elastic member, a torque adjusting device, and a torque sensing device. The torque adjusting device efficiently slides along a direction in parallel to an axis of the main body, so as to be operable by the user to adjust an axial position of a resting member of the torque adjusting device with respect to the shaped elastic member, thereby quickly adjusting the torque setting value of the wrench. Also, when the force transmission is stopped by the torque releasing device, the wrenching device provides a mechanical torque disengagement to notify the user of the force reaching the torque setting value.

Claims19

Dependent claims

A digitally displaying torque wrench with mechanical torque adjustment, comprising:

a main body forming a first end and a second end away from the first end along an axis, the axis dividing the main body into a forward side and a reverse side, the main body comprising an inner wall, the inner wall comprising a first inner wall on the reverse side and a second inner wall on the forward side;
a wrenching device swayable and disposed on the first end of the main body, the wrenching device comprising a wrenching member, a linkage bar, and an actuating member, the wrenching member pivotally disposed on the first end and comprising a wrenching end exposed from the main body and a distal end inserted into the main body, the linkage bar comprising a first combining end and an opposite second combining end, the first combining end pivotally disposed on the distal end, the actuating member pivotally disposed in the main body and operable between a first pivot position and a second pivot position, whereby the actuating member is linked with the second combining end;
a torque releasing device pivotally disposed in the main body and optionally abutting against one end of the wrenching device away from the wrenching end, and the torque releasing device abutting against the actuating member;
a shaped elastic member comprising a fixing end, and the fixing end of the shaped elastic member fixed to the torque releasing device;
a torque adjusting device disposed in the main body and movable along a direction in parallel to the axis of the main body to generate a relative sliding relationship, the torque adjusting device comprising a resting member upon which one end of the shaped elastic member away from the fixing end rests, the torque adjusting device being operable by a user to adjust an axial position of the resting member with respect to the shaped elastic member;
and
a torque sensing device disposed on a position of the main body corresponding to the torque adjusting device, the torque sensing device configured to sense a displacement variation of the torque adjusting device and display a torque setting value;
when the actuating member is at the first pivot position, the actuating member transmits a counterforce of the wrenching device to the shaped elastic member;
when the torque releasing device is disengaged, a force transmission of the digitally displaying torque wrench is stopped;
and when the actuating member sways to the second pivot position, the actuating member carries the linkage bar to displace with respect to the main body and simultaneously actuates the wrenching member to hit the first inner wall while the actuating member hits the second inner wall.

7 more elements

A digitally displaying torque wrench with mechanical torque adjustment, comprising:

a main body forming a first end and a second end away from the first end along an axis, the axis dividing the main body into a forward side and a reverse side;
a wrenching device swayable and disposed on the first end of the main body, the wrenching device comprising a wrenching end exposed from the main body;
a torque releasing device pivotally disposed in the main body and optionally abutting against one end of the wrenching device away from the wrenching end;
a shaped elastic member comprising a fixing end, and the fixing end of the shaped elastic member fixed to the torque releasing device;
the shaped elastic member comprising a shaped supporting section on one end thereof away from the fixing end, the shaped supporting section comprising a curve contact area, the shaped elastic member disposed in the main body and tilting with respect to the axis of the main body, an axial center line of the shaped elastic member including a tilt angle with the axis, the fixing end of the shaped elastic member arranged on the reverse side of the main body, the shaped supporting section of the shaped elastic member allowed to cross over the axis of the main body to the forward side of the main body;
a torque adjusting device disposed in the main body and movable along a direction in parallel to the axis of the main body to generate a relative sliding relationship, the torque adjusting device comprising a resting member upon which the curve contact area of the shaped supporting section rests, the torque adjusting device being operable by a user to adjust an axial position of the resting member with respect to the shaped supporting section, so as to change the tilt angle of the shaped elastic member with respect to the main body;
and
a torque sensing device disposed on a position of the main body corresponding to the torque adjusting device, the torque sensing device configured to sense a displacement variation of the torque adjusting device and display a torque setting value;
when the resting member of the torque adjusting device rests upon the position on the shaped elastic member away from the fixing end, the torque setting value is set at the minimum;
when the resting member of the torque adjusting device rests upon the position on the shaped elastic member in adjacent to the fixing end, the torque setting value is set at the maximum.

7 more elements

A digitally displaying torque wrench with mechanical torque adjustment, comprising:

a main body forming a first end and a second end away from the first end along an axis, the axis dividing the main body into a forward side and a reverse side;
a wrenching device swayable and disposed on the first end of the main body, the wrenching device comprising a wrenching member and a pressing member, the wrenching member pivotally disposed on the first end, the wrenching member comprising a wrenching end exposed from the main body and a distal end inserted into the main body, the pressing member pivotally disposed on the distal end;
a torque releasing device pivotally disposed in the main body and optionally abutting against the pressing member;
a shaped elastic member comprising a fixing end, and the fixing end of the shaped elastic member fixed to the torque releasing device;
the shaped elastic member comprising a shaped supporting section on one end thereof away from the fixing end, the shaped supporting section comprising a curve contact area, the shaped elastic member disposed in the main body and tilting with respect to the axis of the main body, an axial center line of the shaped elastic member including a tilt angle with the axis, the fixing end of the shaped elastic member arranged on the reverse side of the main body, the shaped supporting section of the shaped elastic member allowed to cross over the axis of the main body to the forward side of the main body;
a torque adjusting device disposed in the main body and movable along a direction in parallel to the axis of the main body to generate a relative sliding relationship, the torque adjusting device comprising a resting member upon which the curve contact area of the shaped supporting section rests, the torque adjusting device being operable by a user to adjust an axial position of the resting member with respect to the shaped supporting section, so as to change the tilt angle of the shaped elastic member with respect to the main body;
and
a torque sensing device disposed on a position of the main body corresponding to the torque adjusting device, the torque sensing device configured to sense a displacement variation of the torque adjusting device and display a torque setting value;
when the resting member of the torque adjusting device rests upon the position on the shaped elastic member away from the fixing end, the torque setting value is set at the minimum;
when the resting member of the torque adjusting device rests upon the position on the shaped elastic member in adjacent to the fixing end, the torque setting value is set at the maximum;
when a force imposed wrenching the digitally displaying torque wrench increases to be equal to the torque setting value, the torque releasing device is disengaged with the pressing member, so as to stop the force imposing of the digitally displaying torque wrench;
when the digitally displaying torque wrench is recovered to a normal status, the torque releasing device and the pressing member are restored to an original abutting status.

9 more elements

Dependencies are inferred from the claim text.

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Abstract

A digitally displaying torque wrench with mechanical torque adjustment, comprising:

a main body forming a first end and a second end away from the first end along an axis, the axis dividing the main body into a forward side and a reverse side, the main body comprising an inner wall, the inner wall comprising a first inner wall on the reverse side and a second inner wall on the forward side;
a wrenching device swayable and disposed on the first end of the main body, the wrenching device comprising a wrenching member, a linkage bar, and an actuating member, the wrenching member pivotally disposed on the first end and comprising a wrenching end exposed from the main body and a distal end inserted into the main body, the linkage bar comprising a first combining end and an opposite second combining end, the first combining end pivotally disposed on the distal end, the actuating member pivotally disposed in the main body and operable between a first pivot position and a second pivot position, whereby the actuating member is linked with the second combining end;
a torque releasing device pivotally disposed in the main body and optionally abutting against one end of the wrenching device away from the wrenching end, and the torque releasing device abutting against the actuating member;
a shaped elastic member comprising a fixing end, and the fixing end of the shaped elastic member fixed to the torque releasing device;
a torque adjusting device disposed in the main body and movable along a direction in parallel to the axis of the main body to generate a relative sliding relationship, the torque adjusting device comprising a resting member upon which one end of the shaped elastic member away from the fixing end rests, the torque adjusting device being operable by a user to adjust an axial position of the resting member with respect to the shaped elastic member;
and
a torque sensing device disposed on a position of the main body corresponding to the torque adjusting device, the torque sensing device configured to sense a displacement variation of the torque adjusting device and display a torque setting value;
when the actuating member is at the first pivot position, the actuating member transmits a counterforce of the wrenching device to the shaped elastic member;
when the torque releasing device is disengaged, a force transmission of the digitally displaying torque wrench is stopped;
and when the actuating member sways to the second pivot position, the actuating member carries the linkage bar to displace with respect to the main body and simultaneously actuates the wrenching member to hit the first inner wall while the actuating member hits the second inner wall.

7 more elements