Patent ID: 7055268

Claim:
A length-adjustable shoe, comprising: an outsole; an insole attached on the outsole; an upper attached on the insole and covering a wearer's instep; means for adjusting a length of the insole to be suitable to a wearer's foot, which is provided at the insole; an upper tension member provided at the upper to provide tightening force to the upper; a lower tension member provided at the outsole to provide tightening force to the outsole; and means for fastening a front part and a rear part of the upper divided by the upper tension member, which is provided at the front and rear parts of the upper to maintain a size of the shoe at a wearer's foot size; wherein the means for adjusting a length of the insole comprises: a first insole joint part corresponding to a front part of the insole, including: a dovetail groove formed at a lower surface of the front part of the insole and having a certain length; a rectangular length-adjusting hole formed at the front part of the insole to be positioned in the dovetail groove, and having a longitudinal rack at its one side; and a fixing key hingedly connected to one side of the length-adjusting hole and having a fixing rack at its one side; and a second insole joint part corresponding to a rear part of the insole, including: a spur gear having a proper diameter, which is engaged with the fixing rack of the length-adjusting hole and the fixing rack of the fixing key and is provided at its upper surface with a cross recess; and a dovetail insert having a proper length to be slidably inserted into the dovetail groove and having a gear recess at its upper surface to receive a lower portion of the spur gear.