MANUFACTURING METHOD OF CONNECTION PART OF SHEET-LIKE MEMBER, AND MANUFACTURING METHOD OF SEAT COVER

PROBLEM TO BE SOLVED: To provide a manufacturing method of a connection part of a sheet-like member, capable of sufficiently obtaining a waterproof function of the connection part, and obtaining aesthetic property of the connection part.SOLUTION: A manufacturing method of a connection part of a sheet-like member includes: (b) forming a sewing part N by sewing in a state of sandwiching an intermediate member T by an edge 124d of a right side part 120 as a sheet-like member and an edge 134a of a center part 130 as a sheet-like member; (c) arranging a regulation member U between a body part 122 and a body part 132 and putting the regulation member U into a state of being abutted on the end part inside the intermediate member T; and (d) performing heat compression by high-frequency dielectric heating while compressing a laminated part comprising the edges 124d and 134a and the intermediate member T by a compression member 404.SELECTED DRAWING: Figure 15 【課題】シート状部材の接続部の製造方法であって、該接続部の防水機能を十分得ることができ、かつ、接続部の審美性を得ることができるものを提供する。【解決手段】シート状部材としての右側部１２０の縁部１２４ｄとシート状部材としての中央部１３０の縁部１３４ａとで中間部材Ｔを挟んだ状態で縫製して縫製部Ｎを形成し（（ｂ））、その後、本体部１２２と本体部１３２の間に規制部材Ｕを配置するとともに、該規制部材Ｕを中間部材Ｔの内側の端部に接した状態とし（（ｃ））、加圧部材４０４により縁部１２４ｄ、１３４ａと中間部材Ｔからなる積層部を加圧しながら、高周波誘電加熱により熱加圧する（（ｄ））。【選択図】図１５