Assembly-type insole for footwear

An assembly-type insole for footwear, which is disposed on an inner bottom surface of a shoe so as to protect the sole of a wearer's foot, the assembly-type insole comprising:

• a heel bottom support configured to support a bottom part of the heel of the wearer's foot;
• a heel bottom support plate positioned beneath the heel bottom support to allow the heel bottom support to be attached thereto;
• an inner arch support positioned at a front side of the heel bottom support and configured to support the inner arch part of the wearer's foot sole;
• an inner arch support plate positioned inwardly from the longitudinal center of the arch of the foot sole in such a manner as to be positioned beneath the inner arch support to allow the inner arch support to be attached thereto;
• an outer arch support positioned at a front side of the heel bottom support and configured to support the outer arch part of the foot sole;
• an outer arch support plate positioned outwardly from the longitudinal center of the arch of the foot sole in such a manner as to be positioned beneath the outer arch support while abutting against the inner arch support plate to allow the outer arch support to be attached thereto;
• an insole base having a front portion configured to support both a foot sole part positioned at a front side of the arch wherein the insole base includes a rear part fitted between the inner arch support and the outer arch support, the rear part is configured to support a middle arch portion of the foot sole;
• and a support plate engagement member positioned beneath the heel bottom support plate the inner arch support plate and the outer arch support plate to allow the heel bottom support plate, the inner arch support plate and the outer arch support plate to be engagedly assembled thereto in a replaceable manner, wherein the rear part of the insole base abuts against a front edge of the heel bottom support, an inner edge of the inner arch support, and an inner edge of the outer arch support;
• and where the heel bottom support, the inner arch support, and the outer arch support abut against the insole base have a press-fit engagement structure.