公开(公告)号：US4949657A

公开(公告)日：1990-08-21

申请号：US266385

申请日：1988-11-02

申请人： Susumu Hanyu ,  Noboru Kasuga ,  Kazumasa Hara ,  Mikio Koike

发明人： Susumu Hanyu ,  Noboru Kasuga ,  Kazumasa Hara ,  Mikio Koike

IPC分类号： D05B49/00 ,  D05B3/02 ,  D05B45/00 ,  D05B47/04 ,  D05B49/02 ,  D05B51/00 ,  D05B53/00 ,  D05B55/00

CPC分类号： D05B51/00 ,  D05B47/04 ,  D05D2207/05

摘要： A sewing machine comprises a thread deflecting device arranged between a thread take-up lever and a needle and which in response to a swinging movement of a needle bar effected in response to selection of a zigzag stitch, deflects the upper thread laterally of a fabric feeding direction. A thread blocking device is provided on one side of the thread deflecting device. The sewing machine further comprises an actuator operated in response to actuation of a zigzag stitch pattern selecting key to move the thread blocking device to an operative position thereof. The thread blocking device in the operative position blocks the upper thread as it is deflected in one direction by the thread deflecting device to give a predetermined degree of tension to the upper thread, so that the stitch is tightened on one side of the zigzag stitch in addition to the tightening of the stitch by a thread take-up lever.

摘要翻译： 一种缝纫机包括一个设置在卷线杆和针之间的线偏转装置，响应于针对Z字形针迹的选择而产生的针杆的摆动运动，该线偏转装置响应于织物进给侧向偏转 方向。 在螺纹偏转装置的一侧设有螺纹堵塞装置。 缝纫机还包括响应于Z字形针迹图案选择键的致动而操作的致动器，以将线阻塞装置移动到其操作位置。 螺纹堵塞装置在工作位置阻挡面线，因为它被线偏转装置沿一个方向偏转，从而给面线提供预定程度的张力，使得线圈在Zigzag针迹的一侧被紧固 除了通过螺纹牵引杆紧固线圈之外。

公开(公告)号：US4793273A

公开(公告)日：1988-12-27

申请号：US27490

申请日：1987-03-17

申请人： Kazumasa Hara ,  Akiyoshi Sasano ,  Mikio Koike

发明人： Kazumasa Hara ,  Akiyoshi Sasano ,  Mikio Koike

IPC分类号： D05B47/02 ,  D05B47/04 ,  D05B47/06 ,  D05B51/00 ,  D05B59/02 ,  D05B63/00

CPC分类号： D05B51/00 ,  D05B47/04 ,  D05B47/06 ,  D05B59/02

摘要： An automatic thread tensioning device for positioning the crossing points of upper and lower threads in the center of thickness of a fabric undergoing stitching. The positioning is effected by making calculations based on measured results of thread tension, without needing to detect the various kinds of characteristics of fabrics, threads, or lower thread tension responding to an existing type of stitching condition. The proper upper thread tension may be determined for the stitching conditions of fabrics which have different characteristics and for stitching conditions of fabrics which have conventionally been difficult to deal with, simply by pressing buttons and making test stitchings. If an upper thread tensioning device has a motor, a stitching operation may be made more easily.

摘要翻译： 一种自动线张紧装置，用于将上，下螺纹的交叉点定位在经历缝合的织物的厚度的中心。 通过基于线张力的测量结果进行计算来实现定位，而不需要检测针对现有类型的缝合条件的织物，螺纹或底线张力的各种特性。 可以根据传统上难以处理的织物的不同特性和缝合条件的织物的缝合条件，仅通过按压按钮和进行试验缝来确定适当的面线张力。 如果面线张紧装置具有电动机，则可以更容易地进行缝合操作。

公开(公告)号：US4700644A

公开(公告)日：1987-10-20

申请号：US865549

申请日：1986-05-20

申请人： Yasukata Eguchi ,  Susumu Hanyu ,  Kazumasa Hara ,  Mikio Koike

发明人： Yasukata Eguchi ,  Susumu Hanyu ,  Kazumasa Hara ,  Mikio Koike

IPC分类号： D05B47/04 ,  D05B53/00 ,  D05B63/00 ,  D05B69/00

CPC分类号： D05B63/00

摘要： When a lower thread is effected with tension by an upper thread, a lower thread tension device is actuated in a certain working distance with very small resistance to an extent that a lower thread is drawn as if without resistance. If the lower thread is effected with said tension outside of said distance, it is not drawn out with large resistance. An actuation means successively receives information about thread consumed in each of the stitches and information about rotation phase of the sewing machine from a phase sensor. In the distance of a strong resistance, the lower thread is prohibited from drawing, and the thread is tightened in this distance.

摘要翻译： 当下线通过面线张紧时，下线张力装置以一定的工作距离被致动，具有非常小的阻力，使得下线被拉出，好像没有阻力。 如果在所述距离之外的所述张力下进行底线，则不会以较大的阻力拉出。 致动装置从相位传感器连续接收关于每个针迹中消耗的线的信息和关于缝纫机的旋转相位的信息。 在强阻力的距离内，禁止下线拉拔，螺纹在该距离内拧紧。

公开(公告)号：US4340003A

公开(公告)日：1982-07-20

申请号：US158779

申请日：1980-06-12

申请人： Susumu Hanyu ,  Kazumasa Hara ,  Mikio Koike

发明人： Susumu Hanyu ,  Kazumasa Hara ,  Mikio Koike

IPC分类号： D05B3/02 ,  D05B27/22 ,  D05B63/00 ,  D05B57/08

CPC分类号： D05B63/00 ,  D05B27/22

摘要： A thread tightening device for a sewing machine of the type having a main shaft, a vertically reciprocable needle bar with a needle carrying an upper thread, a loop taker and a drive shaft for driving the loop taker and a feed dog, the thread tightening device includes a group of pattern cams operatively connected to the main shaft, pattern selecting device and an arrangement for controlling the vertical movement of the feed dog. This arrangement comprises a control cam and a rotatable shaft, the control cam being slidably axially mounted on the rotatable shaft but not turnable with respect to the shaft. The thread tightening device also includes an element arranged for vertical reciprocating movement in a timed relation with the feed dog, which element engages a lower thread during the stitching operation of the sewing machine. A thread tension adjusting device is provided in the machine which comprises an adjusting cam operatively connected to the pattern cams and a linkage arrangement which is operatively connected to the adjusting cam and to the control cam to displace the control cam in the axial direction in response to a set position of the adjusting cam to thereby adjusting lower thread tension in accordance with the respective pattern cam.

摘要翻译： 一种用于缝纫机的螺纹紧固装置，其具有主轴，具有承载面线的针的可往复运动的针杆，用于驱动回路接收器的回路接收器和驱动轴以及进给爪，所述螺纹紧固装置 包括可操作地连接到主轴的图案凸轮组，图案选择装置和用于控制馈送狗的垂直运动的装置。 该装置包括控制凸轮和可旋转轴，控制凸轮可滑动地轴向安装在可旋转轴上，但不能相对于轴转动。 螺纹紧固装置还包括布置成与进给爪定时关系的垂直往复运动的元件，该缝纫机在缝合操作期间该元件与下线接合。 一种线张力调节装置设置在机器中，该装置包括可操作地连接到图案凸轮的调节凸轮和可操作地连接到调节凸轮的控制凸轮和控制凸轮，以响应于轴向方向来移动控制凸轮 调节凸轮的设定位置，从而根据相应的图案凸轮调节下线张力。

公开(公告)号：US5022335A

公开(公告)日：1991-06-11

申请号：US427292

申请日：1989-10-26

申请人： Susumu Hanyu ,  Noboru Kasuga ,  Mikio Koike ,  Kazumasa Hara ,  Mitsuru Nishijima ,  Akiyoshi Sasano

发明人： Susumu Hanyu ,  Noboru Kasuga ,  Mikio Koike ,  Kazumasa Hara ,  Mitsuru Nishijima ,  Akiyoshi Sasano

IPC分类号： D05B45/00 ,  D05B47/04

CPC分类号： D05B45/00 ,  D05B47/04

摘要： An upper thread carried by a vertically reciprocating needle is drawn from a bobbin through a tensioning device, a supply device and a take-up lever. A predetermined amount of the upper thread is first supplied by actuating the supply device, while applying no tension thereto. An additional amount of the upper thread is then supplied by operation of the take-up lever with a predetermined tension being given thereto. The additional amount is detected by a sensor. The supply device includes a one-way clutch for allowing the upper thread to travel in a predetermined direction which, however, may not be conveyed from the needle side when the supply device is made operative. A CPU controls the amount of thread first supplied by the supply device which will always be smaller than an amount actually required for producing a stitch, resulting in an additional amount to be supplied supplemental in cooperation with the tensioning device.

摘要翻译： 由垂直往复针运送的面线通过张紧装置，供给装置和卷取杆从筒管抽出。 首先通过致动供给装置来提供预定量的面线，同时不向其施加张力。 然后通过操作具有预定张力的卷取杆来提供附加量的面线。 附加量由传感器检测。 供给装置包括用于允许面线在预定方向上行进的单向离合器，然而当预定的方向在供给装置可操作时可以不从针侧传送。 CPU控制由供给装置首先供给的线数量，该供给装置总是小于生产针迹所需的实际量，导致与张紧装置配合补充的附加量。

公开(公告)号：US4926770A

公开(公告)日：1990-05-22

申请号：US300336

申请日：1989-01-23

申请人： Susumu Hanyu ,  Kazumasa Hara ,  Yasuro Sano

发明人： Susumu Hanyu ,  Kazumasa Hara ,  Yasuro Sano

IPC分类号： D05B63/00 ,  D05B55/06 ,  D05B73/12

CPC分类号： D05B55/06 ,  D05B73/12

摘要： A zigzag sewing machine includes a needle hole member having a round needle hole of a diameter slightly larger than that of a stitching needle. The needle hole member engages a laterally elongated hole in a needle plate and is swingable along the latter. A base member is mounted coaxially with a loop taker and is rotatable relative to the loop taker. The needle hole member is pivoted to the base member for relative vertically swinging movement. A lever swingably mounted on the machine housing engages with the needle hole member, and a cam rotated in synchronism with the vertical reciprocation of the needle is in engagement with the swinging lever. A stepping motor is operatively connected to the needle to reciprocate the needle laterally in the elongated needle plate hole, and the motor is also operatively connected to the base member to reciprocate the base member.

摘要翻译： 锯齿缝纫机包括具有圆形针孔的针孔构件，其直径略大于缝合针的直径。 针孔构件与针板中的横向细长的孔接合，并且可以沿着该孔摆动。 基座构件与环接收器同轴地安装并且可相对于回路接收器旋转。 针孔构件枢转到基座构件以进行相对的垂直摆动。 可摆动地安装在机器壳体上的杆与针孔构件接合，并且与针的垂直往复运动同步旋转的凸轮与摆动杆接合。 步进马达可操作地连接到针上，以使针在细长的针板孔中横向往复运动，并且马达也可操作地连接到基座构件以使基座件往复运动。

公开(公告)号：US4920903A

公开(公告)日：1990-05-01

申请号：US277002

申请日：1988-11-28

申请人： Kazumasa Hara ,  Mikio Koike ,  Mitsuru Nishijima ,  Koji Okutani

发明人： Kazumasa Hara ,  Mikio Koike ,  Mitsuru Nishijima ,  Koji Okutani

IPC分类号： D05B63/00

CPC分类号： D05B63/00

摘要： A lower thread tension adjusting device for a sewing machine comprising first and second tension arrangements mounted on a bobbin carrier of the sewing machine for tensioning a lower thread with a predetermined tension and a predetermined additional tension, respectively. A positioning device is mounted on the bobbin carrier and movable between first and second set positions in which the positioning devices moves the second tension arrangement to operative and inoperative positions wherein the second arrangement provides and does not provide the predetermined additional tension of the lower thread. A guide assembly guides the lower thread to positions adjacent to one end and a center of a laterally elongated needle hole and simultaneously guides the positioning device to the first and second positions thereof. A control unit moves the guide assembly between first and second guide positions thereof in accordance with selected patterns of straight and zigzag stitches, respectively.

摘要翻译： 一种用于缝纫机的底线张力调节装置，包括安装在缝纫机的筒管架上的第一和第二张力装置，用于分别以预定的张力和预定的附加张力张紧下线。 定位装置安装在筒管支架上，并可在第一和第二设定位置之间移动，定位装置将第二张力装置移动到操作和不工作位置，其中第二装置提供并且不提供下螺纹的预定附加张力。 引导组件将底线引导到相邻于一个端部和横向细长的针孔的中心的位置，同时将定位装置引导到其第一和第二位置。 控制单元分别根据直线和之字形针迹的选定图案在第一和第二引导位置之间移动引导组件。

公开(公告)号：US4892048A

公开(公告)日：1990-01-09

申请号：US312899

申请日：1989-02-17

申请人： Noboru Karuga ,  Kazumasa Hara ,  Mikio Koike ,  Mitsuru Nishijima

发明人： Noboru Karuga ,  Kazumasa Hara ,  Mikio Koike ,  Mitsuru Nishijima

IPC分类号： D05B47/04

CPC分类号： D05B47/04 ,  D05D2207/05

摘要： A sewing machine having an upper thread supply, a main thread take-up lever and a needle, is provided with an automatic upper thread tension device for absorbing slackening of the upper thread during its supplying phase. The tension device includes a thread tension member arranged between the upper thread supply and the main thread take up lever to impart an adjustable pretension to the upper thread. A thread presser is arranged laterally of the path of the upper thread between the main thread take-up lever and the needle to guide the upper thread from the thread tension member to the main thread take-up lever and to clamp the upper thread and release the same during the predetermined supplying phase. An auxiliary thread take-up lever is arranged between the main take-up lever and the needle and cooperating with a thread guide to draw the slackened part of the upper thread against the guide during the supplying phase.

摘要翻译： 具有面线供给装置，主线取出杆和针的缝纫机设置有自动上线张力装置，用于在供给阶段吸收面线松弛。 张紧装置包括布置在面线供给件和主线收紧杆之间的线张力构件，以向上线提供可调节的预紧力。 螺纹压脚在主线取卷杆和针之间的上线路径的横向布置，以将上线从线张紧构件引导到主线取卷杆，并夹紧上线并释放 在预定的供给阶段期间相同。 在主要的卷取杆和针之间设有一个辅助的卷取杆，它与一个导纱器配合，以便在供应阶段将面线松弛的部分靠在导轨上。

公开(公告)号：US4724784A

公开(公告)日：1988-02-16

申请号：US913551

申请日：1986-09-26

申请人： Kazumasa Hara ,  Mikio Koike ,  Mituru Nishijima

发明人： Kazumasa Hara ,  Mikio Koike ,  Mituru Nishijima

IPC分类号： D05B3/02 ,  D05B19/00 ,  D05B63/00 ,  D05B57/08

CPC分类号： D05B19/00

摘要： A device for changing a lower thread running path in a zigzag sewing machine includes a guiding member positioned between a lower thread holder and a needle plate and having an obliquely positioned guiding face the obliquity of which to the direction of the needle amplitude is controlled to selectively produce straight stitches or zigzag stitches.

摘要翻译： 用于改变锯齿缝纫机中的下线运行路径的装置包括：定位在下线架和针板之间并具有倾斜定位的引导面的引导构件，其引导方向的针对幅度的方向被选择性地控制 生产直线针迹或锯齿形针迹。

公开(公告)号：US4704975A

公开(公告)日：1987-11-10

申请号：US865550

申请日：1986-05-20

申请人： Kazumasa Hara ,  Akiyoshi Sasano ,  Mikio Koike

发明人： Kazumasa Hara ,  Akiyoshi Sasano ,  Mikio Koike

IPC分类号： D05B47/04 ,  D05B47/02 ,  D05B63/00 ,  D05B69/00

CPC分类号： D05B63/00

摘要： A lower thread tension device is provided in association with adjustment of an upper thread tension device in such a manner that when the tension of the upper thread tension device is strong within an adjusting range, the lower thread tension is adjusted strongly, and when the tension of the upper thread tension device is weak within the adjusting range, the lower thread tension is adjusted weakly. The upper and lower thread tension device includes a dial for adjusting an upper thread tension, a potentiometer connected to the dial, and an electromagnet with an actuator acting on the lower thread to adjust its tension in response to a signal received from the potentiometer due to rotation of the dial. The upper and lower thread tension device includes a dial for adjusting an upper thread tension, a potentiometer connected to the dial, and an electromagnet with an actuator acting on the lower thread to adjust its tension in response to a signal received from the potentiometer due to rotation of the dial.

摘要翻译： 与面线张力装置的调整相关联地设置有下线张力装置，即当面线张力装置的张力在调整范围内较强时，下线张力被强烈地调整， 面线张力装置在调节范围内较弱，底线张力微弱调节。 上线和下线张力装置包括用于调节面线张力的表盘，连接到表盘的电位计，以及具有作用在下线上的致动器的电磁体，以响应于由于电位器接收到的信号而调节其张力，由于 表盘旋转。 上线和下线张力装置包括用于调节面线张力的表盘，连接到表盘的电位计，以及具有作用在下线上的致动器的电磁体，以响应于由于电位器接收到的信号而调节其张力，由于 表盘旋转。