| 主权项 |
1. An article of footwear, comprising:
an upper having a toe covering portion and an entry hole for receiving a foot; an intermediate covering portion disposed between the toe covering portion and the entry hole, wherein the intermediate covering portion is closed around the instep of the foot and wherein the volume of the intermediate covering portion is variable; a tension balancing member including a first post portion, a second post portion and a third post portion; a driving tensioning member having a first portion attached to the first post portion of the tension balancing member and the driving tensioning member having a second portion attached to a tensioning device; a first driven tensioning member disposed around the second post portion, wherein ends of the first driven tensioning member are attached to the upper; a second driven tensioning member disposed around the third post portion, wherein ends of the second driven tensioning member are attached to the upper; wherein the driven tensioning member is fixed in place with respect to the tension balancing member; wherein the first driven tensioning member can translate around the second post portion of the tension balancing member and wherein the second driven tensioning member can translate around the third post portion of the tension balancing member; and wherein increasing the tension of the driving tensioning member results in increased tension in the first tensioning member and the second tensioning member, which substantially decreases the volume of the intermediate covering portion. |
