Patent ID: 7631583

Claim:
An input module for a torque wrench comprising: a hollow shank having a first end and a second end; a driving head partially received in the first end of the hollow shank and having a driving stub laterally disposed thereon for adapting to drive a workpiece, a sensing unit mounted in the driving head for gauging a torque value from the driving stub during operating; a grip disposed on the second end of the hollow shank opposite to the driving head; an input mechanism disposed near a middle of the hollow shank and including: a display device disposed on an outer periphery of the hollow shank and electrically connected to the processing unit disposed in the hollow shank; multiple rotary rings co-axially and rotatably mounted on the outer periphery of the hollow shank adjacent to the grip and electrically connected to the processing unit for inputting an alarm torque value to the processing unit; and a processing unit received in the hollow shank and electrically connected to the sensing unit, the display device, and the multiple rotary rings for receiving the values, comparing torque value with the alarm torque value and controlling the display device; whereby the processing unit compares the alarm torque value with the torque value and the display device is controlled by the processing unit for showing a warning message on the display device when the torque value is close to the alarm torque value.