Nissan Motor Company Limited

Nissan Texsys Co., Ltd.

Akio Shindo

Takao Ishido

Takashi Ogasawara

Yuji Kato

Masahiro Adachi

Shuichi Kojima

Shigenori Tanaka

Kimimasa Ohnishi

Akio Tojo

Kimimasa Onishi

Shogo Sasaki

Shuichiro Imamura

Shinji Mizunaga

Kenichi Nakajima

Hiroshi Tsugane

Kenichi Nakjima

Tetsuhiro Kajiwara

Nobuhiko Hayashi

Masaichi Nishijima

Ryozo Yuzawa

Takatugu Kato

A weft picking system for an air jet loom is provided with a microcomputer as a controller. The weft picking system comprises a weft traction device including a pair of rollers, one of which is driven by an inverter motor. A weft yarn fed from a weft measuring and storing device can be placed between the rollers to be drawn toward a weft posture regulating nozzle. The weft posture regulating nozzle is arranged to project the weft yarn into the shed of warp yarns and regulates the posture of the weft yarn under the influence of air jet ejected from the nozzle and from a plurality of sub-nozzles. The rollers always rotate during a weaving operation of the loom. A change-over device is provided to change the weft yarn from a first state of being placed between the rollers to a second state of separating from the rollers or vice versa. A weft yarn slackened portion is unavoidably formed between the weft traction device and the weft posture regulating nozzle, due to a temporary difference in the tractive speed between the weft posture regulating nozzle and the weft traction device. A slackened portion deforming device is disposed between the weft traction device and the weft posture regulating nozzle to effectively deform the slackened portion in a manner to smoothen the slackened portion enough as to prevent any trouble in the weaving operation and any defects in the woven fabric.

Weft picking system for jet loom with device for deforming a weft yarn

A weft picking system for an air jet loom provided with a microcomputer as a controller. The weft picking system comprises a weft traction device including a pair of rollers one of which is driven by an inverter motor. A weft yarn fed from a weft measuring and storing device can be put between the rollers to be drawn toward a weft posture regulating nozzle. The weft posture regulating nozzle is arranged to project the weft yarn into the shed of warp yarns while regulating the posture of the weft yarn, under the influence of an air jet ejected therefrom and under assistance of air ejection from a plurality of sub-nozzles. The rollers are always driven to rotate during a weaving operation of the loom. A change-over device is provided to change the weft yarn from a first state of being put between the rollers to a second state of separating from the rollers or vice versa. The changing from the second state to the first state of the weft yarn is made after the starting of ejection of the fluid jet from the weft posture regulating nozzle in a weft picking cycle thereby preventing the weft yarn from being slackened in a location between the weft traction device and the weft posture regulating nozzle.

Weft picking system for a fluid jet loom including a roller type

A selvage forming system of a shuttleless loom, comprising two binding devices for respectively binding both sides of a fabric to form selvage structures, the two binding devices being located to cause all of the binding yarns to twist in the same direction during weaving operation, thereby preventing either one of selvage structures from being easily broken.

Selvage forming system of shuttleless loom

A pair of normally open scissor blades, one fixed the other movable, is mounted on the face of a reed. A pressure applying member closes the blades, via a cam mechanism, at a predetermined position of the reed to sever a weft yarn.

Weft cutting device for looms

Growing community of inventors

Tokyo, Japan

Akio Shindo