Electronic torque wrench with improved handle
An electronic torque wrench includes: a shank body, a drive head being connected with a front end of the shank body; a handle having a front handle section and a rear handle section, the front handle section being connected with a rear end of the shank body, a cell room being formed in the front handle section for placing cells therein, a front end of the rear handle section being detachably connected with the rear end of the front handle section; an electronic operation/control device disposed on the shank body; and at least one torque sensor mounted on the shank body. The front and rear handle sections together form the handle for a user to hold. The rear handle section of the handle serves as a cell cap for closing the cell room so as to shorten the length of the wrench.
1. An electronic torque wrench with improved handle, comprising:
a shank body, a drive head being connected with a front end of the shank body;
a handle having a front handle section and a rear handle section, the rear handle section being selected from a first rear handle section with a shorter length and a second rear handle section with a longer length, the length of the second rear handle section being longer than the length of the first rear handle section, the front handle section being connected with a rear end of the shank body and integrally formed with the shank body, a rear end of the front handle section being inward recessed to form a cell room, a front end of the rear handle section being detachably connected with the rear end of the front handle section;
an electronic operation/control device disposed on the shank body;
at least one torque sensor mounted on the shank body;
a front conductive member disposed in the cell room of the front handle section;
a rear conductive member disposed in the rear handle section;
at least one cell placed in the cell room of the front handle section in contact with the front and rear conductive members; and
the front and rear handle sections of the handle having a holding length formed between a rear end of the electronic operation/control device and a rear end of the handle; when the first rear handle section is selected as the rear handle section, the length of the rear handle section being 0.25 times to 0.38 times the holding length;
when the second rear handle section is selected as the rear handle section, the length of the rear handle section being 0.36 times to 0.50 times the holding length.
2. The electronic torque wrench as claimed in claim 1 , wherein the holding length of the handle ranges from 70 mm to 130 mm and the length of the wrench ranges from 210 mm to 310 mm, the holding length being 0.33 times to 0.45 times the length of the wrench.
3. The electronic torque wrench as claimed in claim 1 , wherein a top edge of the shank body is depressed to form a platform, the operation/control device being disposed on the platform, at least one recess being formed on one side of the shank body, the recess being formed in a position within the range of the platform, the torque sensor being disposed in the recess.
4. The electronic torque wrench as claimed in claim 1 , wherein the front end of the rear handle section is formed with a socket and the rear conductive member is disposed in the socket.
5. The electronic torque wrench as claimed in claim 1 , wherein the front handle section and the rear handle section are both made of metal material and the front handle section has an outer diameter conforming to an outer diameter of the rear handle section.
6. The electronic torque wrench as claimed in claim 1 , further comprising an extension handle section, the extension handle section being detachably connected with the rear end of the rear handle section, the extension handle section having an outer diameter conforming to an outer diameter of the rear handle section.