Foot-supporting insole

US4317293A · kind A · utility

Inventors

• Rolf Sigle · Waiblingen, DE
• Jakob Sigle · Kornwestheim, DE

Key dates

• Filing date: Feb 22, 1980
• Grant date: Mar 2, 1982
• Expiry date: Feb 22, 2000

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A43B7/22
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

The invention relates to a foot-supporting insole of which the front bounding line (24) extends in front of the ball (28) of the little toe at the outside of the foot and behind the ball (27) of the big toe at the inside of the foot. To enable such an insole to be used in all conventionally marketed shoes and to ensure that correct adaptation to the foot of the wearer will not be necessary, it is suggested to make the insole (2) of resiliently elastic material of substantially constant thickness and to construct it so that it is curved upwardly at the inside (3) of the foot, the stiffness of the insole (2) at least at the outside zone of the foot being so high that the foot rotatingly rolls towards the big toe during walking. Preferably, the length of the insole (2) at the inside of the foot corresponds to a size which is several sizes smaller than the measurement corresponding to the length at the outside of the foot.