Patent ID: 10405616

Abstract:
The present invention provides a zipper head assembly structure, including a sliding element, an elastic element and a pulling element. The sliding element has a first front mating portion, a first middle mating portion and a first rear mating portion. The elastic element is disposed on the sliding element. The elastic element has a second front mating portion mated with the first front mating portion, a second middle mating portion mated with the first middle mating portion, and a second rear mating portion mated with the first rear mating portion. The pulling element has a pivotal portion pivotally disposed between the sliding element and the elastic element. The second middle mating portion extends inwardly from a middle body of the elastic element, and the width W1 of the middle body and the width W2 of the second middle mating portion conform to the equation: (W1−W2)/2≥W2.