Patent ID: 7263784

Claim:
An enhanced structure for measuring tape, comprises: a tape casing having a wheel disposed in its interior, a metal tape being wound around said wheel and having a tail end fixedly connected to said wheel; a transmission element, a driving element, a power receiving element and a retracting element pivotally connecting to a lateral surface of said tape casing, wherein said transmission element can move a distance, said driving element and said power receiving element mesh with each other, and said power receiving element links with said wheel; said retracting element having one end fixed to said tape casing; a brake portion removably linking up with a bottom side of said tape casing and being placed near a tape outlet to stop a tape from ejecting continuously; a press button having a press portion and a pivot joint portion, said pivot joint portion having a curved tooth face disposed at top of inner wall thereof; said press button pivotally connecting to tape casing to have said press portion of said press button placed on top of said tape casing, said pivot joint portion of said press button pivotally connecting to both lateral sides of said tape casing for said curved tooth face on the inner wall of said pivot joint portion to mesh with said transmission element, said retracting element on said lateral surface of said tape casing having its another end fixedly connected to said press button; when retracting said ejected tape, one can press said press button downward to let said press button drive said transmission element to move down and to turn synchronously to let said transmission element mesh with said driving element, thus causing said driving element and said power receiving element to turn synchronously so as to drive said wheel to turn reversely to retract a length of said tape, when press button is not being pressed, an elastic force of said retracting element returns said press button to an original position to let said transmission element break away from said driving element.