Patent ID: 7779704
Filing Date: 2010-08-24
Classification: B25B

Abstract:
1. A torque sensing and control device for tools comprising: a torque sensing and transmitting adapter mounted on or built in a fastening tool; at least a torque sensor secured on at least a rib formed on the adapter and operatively sensing a torque signal when applying a torque on a work or object when rotatably operating the fastening tool; and a digital display control module operatively receiving the torque signal, displaying a torque data and generating an audio or visual warning signal for reminding a user for stopping operation of the fastening tool, or for switching off power or air supply to the fastening tool and/or actuating a delay control to re-start a fastening operation in a pre-determined time interval; and wherein said torque sensing and transmitting adapter includes: a metallic body, a plurality of said ribs formed on the metallic body, a plurality of cavities recessed in the metallic body to define each said rib in between two neighboring cavities, one said torque sensor having at least one strain gauge formed on one said rib, and a plurality of anti-vibration means made of materials without retarding or weakening the transmission of torque signal, and said anti-vibration means inserted, plugged, filled, bonded or molded into the cavities for firmly fastening, holding, bonding or molding the torque sensor including the strain gauge and an electronic circuit of said sensor in the cavities to prevent from separation of the torque sensor from the metallic body.