Patent ID: 7762303

Claim:
A double-sided tape dispenser, comprising: a body one side of which is formed with a tape release port and another side near the tape release port is formed with a hand grasp portion that stretches outwards; a rolling tape mechanism axially formed in the body, in which a tape release seat that is formed outwardly and transversally opposite to the tape release port, a roller that keeps adhesive close to a determined surface, and a carrier wheel are provided sequentially on the tape release seat, a first stationary shaft and a second stationary shaft that project are arranged axially close together at the inner wall of body, a driving gear pivots onto the first stationary shaft, a double-sided tape pivots onto the driving gear, a drawback gear linking with the driving gear pivots onto the second stationary shaft, and a drawback roll wheel pivots onto the drawback gear; an adjustment part being provided on the drawback roll wheel pivoting onto the second stationary shaft and mainly comprising a shift limit bush one side of which is formed with a shift limit portion, in which a compression spring is axially set around the shift limit bush, an adjustment ring is set around the front end of compression spring, and at the inner surrounding wall of adjustment ring, several adjustment portions the sets of concave depth of which are different are provided that are opposite to the shift limit portion; and at the inner surrounding wall of the adjustment ring, a concave portion is axially formed, which is opposite to the shift limit portion, to wedge the adjustment ring onto the top end of shift limit bush, and three adjustment portions the sets of depth of which are different are formed in parallel symmetrically and axially among the concave portions of the adjustment ring, the portions being respectively a first section, a second section, and a third section, in order to adjust drawback roll wheel for tightness in three (3) sections.