| 摘要 |
PROBLEM TO BE SOLVED: To simply and promptly perform connection with and separation from a back-and-forth drive frame in particular, when a headgear frame device is attached to and detached from a sewing machine.SOLUTION: A headgear frame device 10 includes: a support frame 12; a cylindrical rotation drive frame 20 rotatably supported by the support frame 12; a back-and-forth transmission mechanism 30 for transmitting the back-and-forth movement of a back-and-forth drive frame 3 of a sewing machine to the support frame 12; and a rotation transmission mechanism 50 for converting the right-and-left movement of a right-and-left drive frame 4 of the sewing machine to rotation and transmitting the rotation to the rotation drive frame 20. The back-and-forth transmission mechanism 30 includes: a mechanism base 32 attached to the support frame 12; a back end surface contact member 35 provided at the back part of the mechanism base 32; a front end surface contact member 36 provided at the front part of the mechanism base 32; and a displacement mechanism 39 for the front end surface contact member 36. In addition, the back-and-forth transmission mechanism 30 includes a holding device 31 for holding the back-and-forth drive frame 3 between the back end surface contact member 35 and the front end surface contact member 36 which is displaced backward by the displacement mechanism 39. |
