Component for joining upper and sole parts of an article of footwear

Abstract

A chassis part for connecting upper part and a sole part of an article of footwear with a flange structure, a sole part and an article of footwear comprising a chassis part and a method for joining an upper and sole are disclosed. The chassis part comprises a base portion and a flange portion at the periphery of the chassis part. The base portion is arranged on a lower level than the flange portion and provides at least one cavity on the upper side of the chassis part and at least one downward extending portion on the underside of the chassis part. The at least one cavity is arranged to accommodate filler material, the at least one downward extending portion is arranged for engagement with the sole part, and the flange portion is arranged for joining to a flange portion of the upper part.

I claim: 
     
         1 . A chassis part for connecting upper part and a sole part of an article of footwear with a flange structure, the chassis part comprising a base portion and a flange portion at the periphery of the chassis part, wherein
 the base portion is arranged on a lower level than the flange portion and provides at least one cavity on the upper side of the chassis part and at least one downward extending portion on the underside of the chassis part, and   the at least one cavity is arranged to accommodate filler material, the at least one downward extending portion is arranged for engagement with the sole part, and the flange portion is arranged for joining to a flange portion of the upper part.   
     
     
         2 . The chassis part according to  claim 1 , wherein the at least one cavity extends substantially over the foot supporting area of the sole part. 
     
     
         3 . The chassis part according to  claim 1 , wherein the at least one downwards extending portion and the corresponding at least one cavity have a substantially similar contour. 
     
     
         4 . The chassis part according to  claim 1 , wherein the at least one downwards extending portion and the corresponding at least one cavity have different contours. 
     
     
         5 . The chassis part according to  claim 1 , wherein at least one downwards extending portion of the chassis part has a substantially similar contour than a corresponding cavity provided in an outsole of the sole part. 
     
     
         6 . The chassis part according to  claim 1 , wherein the cross-sectional profile of the chassis part resembles a tray. 
     
     
         7 . The chassis part according to  claim 1 , comprising at least one cavity provided with at least two parts of different depths. 
     
     
         8 . The chassis part according to  claim 1 , comprising at least one shank element between an outsole member of the sole part and at least one downward extending portion of the chassis part. 
     
     
         9 . The chassis part according to  claim 1 , wherein substantially the entire volume of the at least one cavity is filled with filler material. 
     
     
         10 . The chassis part according to  claim 1 , wherein the filler material is pre-attached into the at least one cavity before lasting. 
     
     
         11 . The chassis part according to  claim 1 , comprising a snap-fit arrangement between the filler material and the chassis part. 
     
     
         12 . The chassis part according to  claim 1 , wherein the filler material comprises ethylene-vinyl acetate copolymer (EVA) or similar soft foam material. 
     
     
         13 . The chassis part according to  claim 1 , comprising at least two chassis parts. 
     
     
         14 . The chassis part according to  claim 1 , comprising a separate welt component under the flange portion and around the base portion. 
     
     
         15 . A sole arrangement for an article of footwear, the sole arrangement comprising:
 a chassis part comprising a base portion and a chassis flange portion for attachment to an upper flange portion extending from an upper part of the article of footwear, the base portion being arranged on a lower level than the chassis flange portion to provide at least one chassis cavity on the upper side of the chassis part and a downward extending portion on the underside of the chassis part;   filler material in the at least one cavity; and   an outsole member comprising edge portion at the periphery of the outsole member, wherein the flange portion of the chassis part is placed above the edge portion.   
     
     
         16 . The sole arrangement part according to  claim 15 , the outsole member comprising at least one outsole cavity for accommodating the at least one downward extending portion of the chassis part. 
     
     
         17 . The sole arrangement part according to  claim 16 , wherein at least one downwards extending portion and corresponding at least one outsole cavity have a substantially similar contour. 
     
     
         18 . The sole arrangement part according to  claim 15 , wherein the chassis flange portion is placed on the edge portion of the outsole member. 
     
     
         19 . The sole arrangement part according to  claim 15 , comprising a separate welt component placed under the flange portion and around the base portion of the chassis component, and on top of the edge portion of the outsole member. 
     
     
         20 . The sole arrangement according to  claim 15 , further comprising at least one of a footbed, a heel cup, or a sock above the filler material. 
     
     
         21 . Article of footwear comprising:
 an upper part comprising an upper flange portion;   a chassis part comprising a base portion and a chassis flange portion, wherein the base portion is on a lower level than the chassis flange portion to provide at least one chassis cavity on the upper side of the chassis part and at least one downward extending portion on the underside of the chassis part, and wherein the chassis flange portion and the upper flange portion are stitched together;   filler material in the at least one chassis cavity; and   a sole part comprising edge portion at the periphery of the sole part, wherein the chassis flange portion is placed above the edge portion.   
     
     
         22 . The article of footwear according to  claim 21 , wherein the upper flange portion comprises a lasted welt. 
     
     
         23 . The article of footwear according to  claim 21 , comprising at least one of a stitch-out structure, a corner-stich structure, a mechanically stitched structure or a hand stitched structure for joining the upper part and the sole part. 
     
     
         24 . A method of producing an article of footwear, comprising:
 stitching an upper flange portion of an upper part to a chassis flange portion of a chassis part comprising a base portion, wherein the base portion of the chassis part is provided on a lower level than the chassis flange portion to provide at least one chassis cavity on the upper side of the chassis part and a downward extending portion on the underside of the chassis part;   placing filler material in the at least one chassis cavity; and   joining a sole part of the article of footwear to the upper part through the chassis part.   
     
     
         25 . The method according to  claim 24 , comprising placing the filler material into the at least one cavity before stitching the chassis flange portion to the upper flange portion. 
     
     
         26 . The method according to  claim 24 , comprising placing the filler material into the at least one cavity after stitching the chassis flange portion to the upper flange portion. 
     
     
         27 . The method according to  claim 24 , comprising inserting the at least one downward extending portion of the chassis part into a corresponding outsole cavity.