Shoelace fastening for inner shoe
A fastening element for a shoe of a boot comprising a disk-shaped single or multi-part main part, comprising a base side for fastening to the shoe, a cover side lying opposite the base side, and two grooves molded into a casing between the base side and the cover side for receiving and guiding a respective end of a shoelace. The grooves have an entrance angle at which shoelaces are to enter into the fastening element when laced in the pulling direction and an exit angle at which shoelaces are to exit the fastening element when pulled in the pulling direction, and wherein the entrance angle is greater than or equal to the exit angle.
1. Fastening element for a shoe of a boot comprising a single or multi-part main part, comprising
a base side for fastening to the shoe,
a cover side lying opposite the base side and
two grooves which are moulded into a casing between the base side and the cover side for receiving and guiding a respective end of a shoelace, wherein the ends of the shoelace, guided in the grooves, can be pulled in a guide direction of the respective groove to lace the boot,
wherein the grooves are spaced apart and angled relative to each other for defining an entrance angle at which shoelaces are to enter into the fastening element when laced in the guide direction and an exit angle at which shoelaces are to exit the fastening element when pulled in the guide direction, and wherein the entrance angle is greater than or equal to the exit angle,
wherein the grooves comprise a plurality of first teeth, which extend into the inside of the respective groove from opposite sides thereof in a tooth direction and are aligned parallel to each other, wherein the tooth direction is at an obtuse angle relative to the guide direction of the respective groove,
wherein the first teeth each have a surface tilted in the guide direction to enable pulling shoelaces within the grooves in the guide direction and prevent the shoelaces from moving against the guide direction,
wherein the grooves comprise one or more second teeth, which extend into the inside of the respective groove from at least one of the sides thereof in the tooth direction, and
wherein the second teeth are larger than the first teeth and located nearer an outer edge of the sides of the respective groove than the first teeth to prevent shoelaces from slipping out of the grooves and to retain the shoelaces in the fastening element.
2. Fastening element as claimed in claim 1 , wherein each of the second teeth extends over a part of the inside of the respective groove on the outside.
3. Fastening element as claimed in claim 1 , wherein each of the second teeth is arranged after the smaller first teeth in one of the grooves when viewed in the corresponding guide direction.
4. Fastening element as claimed in claim 1 , wherein the main part comprises a flange element for fastening on the shoe.
5. Fastening element as claimed in claim 1 , wherein the entrance angle is greater than the exit angle such that said entrance angle is configured to spread laces entering the fastening element and the exit angle is configured to bring laces together upon exiting the fastening element.