JPH0199373U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a three-wrap sewing tool according to an embodiment of this invention together with a part of the main body of the sewing machine, and Figs. 2 to 4 show the three-wrap sewing tool shown in Fig. 1. FIGS. 5 and 6 are perspective views of a part of the three-wrap sewing tool showing other embodiments of this invention, respectively;
Figure 7 is a perspective view for explaining three-fold stitching, and Figures 8 and 9 are perspective views and partial perspective views of three-fold sewing tools for maximum rising width and minimum rising width, respectively. be. 2... Sewing machine bed part, 8... Needle hole position, 30
, 60...First outer bending guide piece, 34...Bending guide body, 38, 66...Second locking means, 4
0... Second outer bending guide piece, 42... Second inner bending guide piece, 44... Connection piece, 46... First inner bending guide piece, 58, 72, 74... First engagement Stopping means, M...cloth, M1...folded side,
M2...Folding side.

Claims (1)

[Scope of utility model registration request] A first inner bending guide is disposed on the front side in the cloth feeding direction with respect to the needle hole position of the sewing machine head, and is opposed to the sewing machine with a predetermined distance therebetween so as to fold back the edge of the cloth to form a folded side. and the first outer bending guide piece, and a second inner side that is opposed to the folded side part with a predetermined distance therebetween so that the folded side part is further folded inward against the cloth body surface to form a folded side part. A three-wrap sewing tool for a sewing machine, comprising a bending guide body consisting of a bending guide piece and a second outer bending guide piece, and which triple-layers the edge of the fabric and feeds it to the needle hole position; The inner bending guide piece and the bending guide body are connected to each other so that the distance between them can be freely adjusted, and the first inner bending guide piece and the second inner bending guide piece of the bending guide body are connected to each other. An adjustment lock that includes a first locking means for fixing the positional relationship, and adjusts the distance between the first inner bending guide piece and the first outer bending guide piece to fix the mutual positional relationship. A three-wrap sewing tool for a sewing machine, characterized in that it is provided with a means.