JPH0368875U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、この考案の１実施例に係る丸紐縫製
用ミシンの要部斜視図、第２図は、従来の丸紐縫
製用ミシンの要部斜視図、第３図は、丸紐縫製用
ミシンに使用される丸紐形成具の斜視図、第４図
は、第３図の矢印方向から見た図、第５図は、丸
紐形成具の平面図、第６図及び第７図はそれぞれ
、縫製状態における第５図の−矢視縦断面図
及び−矢視縦断面図、第８図は、丸紐形成具
の図示を省略して紐の反転部分の状態を示す斜視
図である。 ２……ミシンベツド、６……針、１２……丸紐
形成具、１４……丸紐形成管、１６……取付け板
、２４……外筒、２６……内筒、３２……内筒の
挿入口、４０……針板、４２……送り歯、４４…
…押え金、４６……案内ローラ、Ｔ……テープ状
紐、Ｓ……逢着部、Ｓ′……縫い代部分、Ｌ……
丸紐。 FIG. 1 is a perspective view of the main parts of a sewing machine for sewing round cords according to an embodiment of this invention, FIG. 2 is a perspective view of the main parts of a conventional sewing machine for sewing round cords, and FIG. FIG. 4 is a perspective view of a round cord forming tool used in a sewing machine; FIG. 4 is a view seen from the arrow direction in FIG. 3; FIG. 5 is a plan view of the round string forming tool; FIGS. 6 and 7. 5 is a vertical cross-sectional view taken in the direction of - arrows and a vertical cross-sectional view taken in the direction shown in - arrows of FIG. 5 in the sewn state, respectively, and FIG. 8 is a perspective view showing the state of the reversed part of the string with the round string forming tool omitted. be. 2...Sewing machine bed, 6...Needle, 12...Round cord forming tool, 14...Round cord forming tube, 16...Mounting plate, 24...Outer cylinder, 26...Inner cylinder, 32...Inner cylinder Insertion port, 40... Throat plate, 42... Feed dog, 44...
...Presser foot, 46...Guide roller, T...Tape string, S...Setting part, S'...Seam allowance, L...
Round string.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 連続したテープ状紐を、その幅方向において環
状にし移送方向に沿つた両辺縁部を互いに重ね合
わせるようにしながら案内する外筒と、この外筒
の内方に、かつ挿入口が針落ち位置より移送方向
の後方側に位置するように設けられ、前記外筒に
よつて環状にされたテープ状紐の両辺縁部同士を
移送方向に沿つて直線的に縫着することにより筒
状に形成された縫着部を反転させかつ表と裏とを
引つ繰り返して縫着部の縫い代部分を縫着部の筒
内部に始末する内筒とを有する丸紐形成具をミシ
ンベツドの針板に取り付けてなる丸紐縫製用ミシ
ンにおいて、針板に、前記丸紐形成具に対し間隔
をあけて、針の動きに連動する送り歯を並設する
とともに、その送り歯の上方にそれと接離自在に
押え金を配設し、ミシンベツド上面に、前記丸紐
形成具によつて形成された丸紐を反転させ前記送
り歯の位置へ案内する案内具を配設したことを特
徴とする丸紐縫製用ミシン。 An outer cylinder that guides a continuous tape-like string while making it circular in the width direction and overlapping both edges along the transport direction; The tape-like string is provided so as to be located on the rear side in the transport direction, and is formed into a cylindrical shape by linearly sewing both edges of a tape-like string formed into an annular shape by the outer cylinder along the transport direction. Attach a round cord forming tool to the throat plate of the sewing machine bed, which has an inner tube that allows the seam allowance of the sewn portion to be disposed of inside the cylinder of the sewn portion by repeatedly flipping the sewn portion and pulling the front and back sides. In this round cord sewing machine, feed dogs linked to the movement of the needle are arranged on the throat plate at intervals with respect to the round cord forming tool, and a presser is provided above the feed teeth so as to be able to come into contact with and separate from the feed dogs. A sewing machine for sewing round cords, characterized in that a guide tool is provided on the upper surface of the sewing machine bed for inverting the round cord formed by the round cord forming tool and guiding it to the position of the feed dog. .