Patent ID: 8443703
Filing Date: 2013-05-21
Classification: B25B,G01L

Abstract:
1. A torque wrench, comprising: at least one wrench body, which comprises a tool head that comprises a tool coupling member that is selectively rotatable in a forward direction and a reversed direction; at least one toque-strain bar, which is received in the wrench body and has an end coupled to the tool head of the wrench body to receive a torque applied by the tool head; at least one torque sensor, which is mounted to a surface of the toque-strain bar to detect value of the torque applied to the toque-strain bar and to convert the torque into a torque value signal; at least one angular position sensor, which is set inside the wrench body to detect value of a horizontal angle of the body and the tool head and to convert the detected angle into an angle value signal; at least one detection and processing circuit, which is received in the wrench body and is connected to the torque sensor and the angular position sensor to receive the torque value signal and the angle value signal for performing displaying of a torque value and an angle value respectively corresponding to the torque value signal and the angle value signal, alarming, storage in respect of the torque value signal and the angle value signal, and wireless transmission of data of the torque value and the angle value; and at least one control receiver, which receive the torque value data and the angle value data from the detection and processing circuit, the control receiver being adapted to connect to an external remote electronic device to apply the received torque value data and the angle value data to the electronic device; said wrench body comprises: a housing, which forms at least one chamber therein, the housing forming a recessed opening and a plurality of notches, the housing forming a plurality of through holes in a bottom portion thereof; a tool head, which has an end forming a connection section for connection with an end of the housing, the connection section comprising a rotation member for coupling with a tool piece; at least two power retention bars, which are received in an end portion of the chamber of the housing, a positive electrode spring and a negative electrode spring being received between the two power retention bars in opposite end portions thereof; and at least one handle enclosure, which is fit over an end portion of the housing.