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公开(公告)号：US4735237A
公开(公告)日：1988-04-05
申请号：US21243
申请日：1987-03-03
申请人： Yujiro Takegawa , Fumio Matsuda
发明人： Yujiro Takegawa , Fumio Matsuda
CPC分类号： D03D47/3013 , D03D47/3046
摘要： A multi-nozzle weft insertion device is described having a group of independent nozzles, each nozzle corresponding to the weft to be inserted and having a jet orifice, wherein the jet orifices in a bundle point to a weft-path. The device includes a guide tube which has a diameter substantially equal to or somewhat larger than the diameter of the bundle of the jet orifices and is placed opposite the jet orifices; and partitions which extend at least within the inner circumferential area of the guide tube and which are disposed opposite openings formed between the jet orifices, in order to separate the wefts and guide them into the weft-path without contact.
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公开(公告)号：US4949759A
公开(公告)日：1990-08-21
申请号：US385417
申请日：1989-07-26
申请人： Yujiro Takegawa , Kenjiro Ohno , Fumio Matsuda , Zenji Tamura
发明人： Yujiro Takegawa , Kenjiro Ohno , Fumio Matsuda , Zenji Tamura
CPC分类号： D03D39/223 , D03D41/00
摘要： A seersucker loom is arranged such that puckering warp yarns are divided to form a shed during the weaving of a seersucker. The tension of the puckering warp yarns is maintained on a level below that of the tension of the ground warp yarns. The puckering warp yarns are slackened positively at least during a slackening period from a shed closing operation to a beating-up operating of every turn of the main shaft of the seersucker loom so that the tension of the puckering warp yarns are reduced to a value which below a predetermined tension of the yarns during a period other than during the slackening period. This enables the loom to slacken portions of the puckering warp yarns near the cloth fell sufficiently during the beating-up operation so that the puckering warp yarns are satisfactorily puckered.
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公开(公告)号：US5819558A
公开(公告)日：1998-10-13
申请号：US680177
申请日：1996-07-15
摘要： A method of knitting a single knit fabric comprising the steps of successively advancing a plurality of needles corresponding to a non-knitting section within which a yarn from a yarn feeder forms a transit yarn portion beginning with a needle on the side of a starting point of the transit yarn portion to lower the yarn from the yarn feeder below the needles, and engaging the yarn from the yarn feeder by another needle on the side of the yarn feeder closer to the yarn feeder than the advanced needles.
摘要翻译： 一种单针织物的编织方法，其特征在于，包括以下步骤：使来自喂纱机的纱线相对应的多个针顺序前进，所述非编织部分的纱线在起始点的一侧形成从针开始的过渡纱线部分 运送纱线部分，用于将来自喂纱器下方的纱线降低到针下方，并且使纱线从喂纱器的另一根针在喂纱机一侧的纱线喂送器侧与先进针接合。
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公开(公告)号：US5154209A
公开(公告)日：1992-10-13
申请号：US765038
申请日：1991-09-24
申请人： Yujiro Takegawa
发明人： Yujiro Takegawa
CPC分类号： D03D47/34
摘要： A positive feed picking device for a fluid jet loom includes a yarn measuring and storing device; a main picking nozzle; a positive feed mechanism including a drive roller and a motor for driving the drive roller. The positive feed mechanism is disposed between the yarn measuring and storing device and the main picking nozzle to feed a weft yarn positively to the main picking nozzle during a picking period. The feed picking device also includes a sensor disposed on a yarn path along which the weft yarn travels for detecting the delivery of a predetermined length of the weft yarn from the yarn measuring and storing device. A motor controller for controlling the operating speed of the motor of the positive feed mechanism, and a controller for controlling the positive feed mechanism are also included in the positive feed picking device. The controller starts the positive feed mechanism at the start of picking period. The motor controller controls the motor so that the rotating speed of the motor varies according to a predetermined speed control characteristic.
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公开(公告)号：US4898213A
公开(公告)日：1990-02-06
申请号：US276857
申请日：1988-11-28
申请人： Yujiro Takegawa
发明人： Yujiro Takegawa
CPC分类号： D03J1/004
摘要： A device for mending and trimming broken warp yarn includes a yarn holder mounted on a moving member for holding a free end of a mending yarn tied to a broken warp yarn. When a warp yarn is broken during the operation of the loom, one end of a mending yarn and the broken end of the broken warp yarn extending from the warp beam are tied together, and the other end of the mending yarn is passed through a corresponding heddle and a corresponding gap between the dents of a reed, and then the loom is restarted. A signaling device generates a signal after detecting the arrival of the free end of the mending yarn which was not woven into the cloth after the loom was restarted. The free end of the mending yarn is cut off automatically from the woven cloth by a cutter in accordance with the signal from the signaling device while the loom is in operation. A controller is connected to and controls all of the elements of the mending and trimming device.
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公开(公告)号：US4886094A
公开(公告)日：1989-12-12
申请号：US243045
申请日：1988-09-12
申请人： Yujiro Takegawa
发明人： Yujiro Takegawa
CPC分类号： D03D47/304
摘要： A picking controller capable of automatically controlling the retaining member of the weft yarn measuring and storing unit of a picking device and the modes of operation of subnozzle groups respectively composed of subnozzles detects an actual arrival phase at which a picked weft yarn arrives at a fixed position on the arrival side of the loom, and then compares the actual arrival phase with a reference arrival phase to obtain the angular difference between the actual arrival phase and the reference arrival phase. The controller then determines a picking phase on the basis of the angular difference, and determines a releasing phase at which the retaining member is to be retracted so as to release the weft yarn stored on the measuring and storing drum of the weft yarn measuring and storing unit. The controller then determines jet starting phases and jet ending phases respectively for the groups of subnozzles on the basis of the running characteristics of the picked weft yarn, and controls the groups of subnozzles on the basis of the jet starting phases and the jet ending phases for sequential jetting.
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公开(公告)号：US4462434A
公开(公告)日：1984-07-31
申请号：US355119
申请日：1982-03-05
申请人： Yujiro Takegawa
发明人： Yujiro Takegawa
CPC分类号： D03D47/362 , D03D47/363
摘要： On a weft reservoir for fluid jet-type looms on which winds of weft are formed on a stationary weft reserving section by rotation of a yarn guide around the weft reserving section, and are transferred in the weft delivery direction by operation of a weft transfer mechanism, the diameter of the weft reserving section is concentrically adjusted and the relative position of the weft transfer mechanism with respect to the surface of the weft reserving section and its operational timings are kept unchanged even after the diameter adjustment for formation of stable and constant balooning of the weft to be delivered under any picking condition.
摘要翻译： 在用于流体喷射型织机的纬纱储存器上，纬纱的纬纱通过绕纬纱保留部分周围的导纱器的旋转而在静止的纬纱储存部分上形成，并且通过纬纱传送机构的操作沿纬纱传送方向传送 纬纱保留部分的直径同心调节，纬纱传送机构相对于纬纱储存部分表面的相对位置及其操作时间即使在直径调整后也保持不变，以形成稳定和恒定的平衡 纬纱在任何拣选条件下交付。
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公开(公告)号：US5116276A
公开(公告)日：1992-05-26
申请号：US675255
申请日：1991-03-27
申请人： Yujiro Takegawa , Souichi Nakai
发明人： Yujiro Takegawa , Souichi Nakai
IPC分类号： D03J1/00
CPC分类号： D03J1/004
摘要： A method of locating a slit between the dents of the reed of a loom corresponding to a broken warp and to an apparatus for positioning a threading device at a position corresponding to the slit between the dents corresponding to the broken warp. The broken warp or a normal warp in a specific vertically displaced relation with the broken warp is detected by a yarn sensor. The position of a slit between the dents corresponding to the broken warp or that of the normal warp is determined on the basis of the distance traveled by the yarn sensor from its standby position, and a threading device is position corresponding to the slit between the dents corresponding to the broken warp on the basis of the distance traveled by the yarn sensor.
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公开(公告)号：US5111851A
公开(公告)日：1992-05-12
申请号：US675971
申请日：1991-03-28
申请人： Yujiro Takegawa
发明人： Yujiro Takegawa
IPC分类号： D03J1/16
CPC分类号： D03J1/16
摘要： When a warp is broken during weaving on a loom, the broken warp is mended and restored by a method of restoring a broken warp after mending the same, comprising steps of connecting a mending yarn to the trailing portion of the broken warp to form a mended warp; cutting a normal warp which has been drawn through the same slit between dents as the broken warp is to be drawn through and inserting a mending yarn with a sufficient length between the cut ends of the normal warp, tying the mending yarn connected to the trailing portion of the broken warp to the normal warp drawn through the same slit between the dents as the broken warp is to be drawn through; and pulling the normal warp toward the take-up side so that the mended warp and the normal warp are tightened properly. Thus, the mended warp is drawn through the slit between the dents together with the normal warp.
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公开(公告)号：US5050643A
公开(公告)日：1991-09-24
申请号：US473151
申请日：1990-01-31
申请人： Yujiro Takegawa , Souichi Nakai
发明人： Yujiro Takegawa , Souichi Nakai
IPC分类号： D03J1/00
CPC分类号： D03J1/004
摘要： A method and apparatus for automatically mending warp yarn selects broken warp yarns from among a group of the warp yarns at the time of breakage of the warp yarn. The spacings between the reed wires of a reed through which the broken warp yarn is passed or the spacings between the adjoining reed wires are then enlarged. A yarn passing member is then positioned at the reed wires through which the broken warp yarn is passed on the basis of the position of the reed wires having large spacings therebetween. The yarn passing member is then inserted into space of the reed wires through which the broken warp yarn is passed. A mending yarn tied to the broken warp yarn is then passed and guided into corresponding reed wires by the yarn passing member. In such a manner, it is possible to then set the loom to be re-started.
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