Bobbin thread tensioning device for a sewing machine
    32.
    发明授权
    Bobbin thread tensioning device for a sewing machine 失效
    缝纫机绕线机张紧装置

    公开(公告)号:US4331090A

    公开(公告)日:1982-05-25

    申请号:US152577

    申请日:1980-05-23

    IPC分类号: D05B63/00 D05B47/04

    CPC分类号: D05B63/00

    摘要: A device for automatically adjusting the tension of a lower thread, which comprises a lower thread bobbin arranged on a bottom plate of a bobbin carrier turnably carrying the bobbin, a loop taker mounted on a magnetic shaft, and an energizing coil arranged around the magnetic shaft and providing together with said bottom plate and magnetic shaft a path of magnetic flux. The device is further provided with a detector detecting the consumed amount of the bobbin thread and a control circuit for energizing the coil when the lower thread is wound to the maximum capacity of the bobbin, interrupting the light of the detector. The detector operates the control circuit to decrease the amount of electric current applied to the energizing coil so as to set the lower thread tension back to its initial predetermined value.

    摘要翻译: 一种用于自动调节下线张力的装置,包括一个布置在可转动地承载线轴的筒管架的底板上的下线筒管,一安装在磁轴上的环形接收器,以及设置在磁力轴周围的通电线圈 并与所述底板和磁轴一起提供磁通的路径。 该装置还设置有检测底线消耗量的检测器,以及当下线缠绕在线轴的最大容量上时对线圈通电的控制电路,中断检测器的光。 检测器操作控制电路以减少施加到通电线圈的电流量,以将下线张力设置回其初始预定值。

    Needle holding device for sewing machines
    33.
    发明授权
    Needle holding device for sewing machines 失效
    缝纫机针装置

    公开(公告)号:US4329934A

    公开(公告)日:1982-05-18

    申请号:US127403

    申请日:1980-03-05

    IPC分类号: D05B55/02

    CPC分类号: D05B55/02

    摘要: A needle holding device for a sewing machine having a needle with a cylindrical shank having a flat edge surface extending along the shank includes a needle bar for supporting the needle, a needle holder mounted to the needle bar and a holding screw to fasten the needle to the needle bar. The needle bar is formed with a vertical groove defined by a horizontal wall and an inclined wall which are adjacent to each other to define a wedge-shaped space. The needle holder has a vertical circular hole having an inner periphery and a transverse hole extended into the vertical hole. When the needle holder is mounted to the needle bar the inner periphery of the vertical hole and the wedge-shaped space of the needle bar groove form a wedge-shaped chamber into which the shank of the needle is inserted. The holding screw fastens the needle upon insertion into the needle bar when the flat edge of the shank is positioned against the horizontal wall of the groove.

    摘要翻译: 一种缝纫机的针保持装置,具有具有沿着柄部延伸的平坦边缘表面的圆柱柄的针,包括用于支撑针的针杆,安装到针杆上的针头保持器和用于将针固定到 针杆。 针杆形成有由水平壁和倾斜壁限定的垂直槽,该垂直槽彼此相邻以限定楔形空间。 针保持器具有垂直的圆形孔,其具有延伸到竖直孔中的内周和横向孔。 当针保持器安装到针杆上时,垂直孔的内周和针杆槽的楔形空间形成楔形室,针的柄插入该楔形室中。 当杆的平坦边缘靠在槽的水平面上定位时,固定螺钉将针头插入针杆时将其固定。

    Electronic pattern stitching sewing machine
    34.
    发明授权
    Electronic pattern stitching sewing machine 失效
    电子图案拼接缝纫机

    公开(公告)号:US4266493A

    公开(公告)日:1981-05-12

    申请号:US55307

    申请日:1979-07-06

    摘要: An electronic pattern stitching sewing machine has an arrangement for producing signals directing it to stitch a selectable number of patterns in series. These signals are then used to identify the last needle position coordinate of a preceding stitched pattern of the series and the initial needle position coordinate of the next-following pattern to be stitched in the series and, in dependence upon this, the most appropriate interconnecting pattern from a memorized group of such interconnected patterns is selected and stitched, so as to interconnect the preceding stitched pattern and the next-following pattern of the series.

    摘要翻译: 电子图案缝合缝纫机具有用于产生指示其串联选择数量的图案的信号的布置。 然后,这些信号用于识别串联的先前缝合图案的最后针位置坐标以及待串接的待缝合的下一个跟随图案的初始针位置坐标,并且根据此,最合适的互连图案 从存储的这种互连图案的组中选择和缝合,以便将先前的缝合图案和下一个后续图案相互连接。

    Indicating arrangement for use in sewing machines
    35.
    发明授权
    Indicating arrangement for use in sewing machines 失效
    用于缝纫机的指示安排

    公开(公告)号:US4079683A

    公开(公告)日:1978-03-21

    申请号:US709475

    申请日:1976-07-28

    IPC分类号: D05B73/00 D05B3/02

    CPC分类号: D05B73/00 D05B73/005

    摘要: A zig-zag sewing machine equipped with pattern cams and a pattern cam selection arrangement has a compartment in which various accessories of the sewing machine are accommodated. One lid covers the compartment and another lid overlies the above-mentioned lid, the lids being provided, at their surfaces facing one another, with a table of indicia and with lines connecting the indicia with other indicia provided on a pattern cam selector dial so as to enable the user of the sewing machine to adjust the sewing machine for the particular selected stitch pattern. The lids are mounted for pivoting on a common shaft, and a sliding element is mounted on the shaft for displacement therealong and is visible when the one lid is either open or closed, the position of the slide element being selected in dependence on the selected pattern and also being indicative of the accessory to be used. An arresting arrangement arrests the lids in their closed positions for sequential release toward their open positions, and includes two latching elements each of which engages one of the lids, and a connecting element which connects the latching element associated with the one lid to the latching element associated with the other lid only when the other lid is in its open position.

    摘要翻译: 配有图案凸轮和图案凸轮选择装置的曲折缝纫机具有容纳缝纫机的各种附件的隔间。 一个盖子盖住隔间,另一个盖子覆盖上述盖子,盖子在它们彼此面对的表面上设置有一个标记工作台,并且将标记与设置在图案凸轮选择器拨盘上的标记连接, 使缝纫机的用户能够针对特定的选择针迹图案调整缝纫机。 安装盖子以在公共轴上枢转,并且滑动元件安装在轴上以便在其上移位,并且当一个盖子打开或关闭时可见,滑动元件的位置根据所选择的图案来选择 并且还指示要使用的附件。 止动装置将盖子阻止在其关闭位置以顺序地释放到其打开位置,并且包括两个闩锁元件,每个闩锁元件接合其中一个盖子,以及连接元件,其将与一个盖子相关联的闩锁元件连接到闩锁元件 仅当另一个盖子处于其打开位置时与另一个盖子相关联。

    Lower thread amount display device of sewing machine
    36.
    发明授权
    Lower thread amount display device of sewing machine 失效
    缝纫机下线量显示装置

    公开(公告)号:US5020461A

    公开(公告)日:1991-06-04

    申请号:US553446

    申请日:1990-07-13

    IPC分类号: D05B59/02

    摘要: In an apparatus for detecting and displaying a residual quantity of lower or under thread (12) of a sewing machine, an under-thread bobbin (10) is provided with transparent flange portions (10a) permitting the light rays emitted from a light emitting device of a photosensor (19) to pass through the flange portions (10a ) of the bobbin (10). The light rays having passed through the bobbin (10) are then reflected by a reflecting means or mirror (21) affixed to a back surface of a bed of the sewing machine to impinge on a light receiving device of the photosensor (19) so that the photosensor (19) detects the residual quantity of the lower thread (12) of the sewing machine. In the photosensor (19), the light emitting device is integrally formed with the light receiving device to save space.

    摘要翻译: 在用于检测和显示缝纫机的下线或下线(12)的剩余量的装置中,底线筒管(10)设置有透明凸缘部分(10a),允许从发光装置发射的光线 的光电传感器(19)穿过线轴(10)的凸缘部分(10a)。 已经穿过线轴(10)的光线然后被固定到缝纫机床的后表面上的反射装置或反射镜(21)反射,以撞击光传感器(19)的光接收装置,使得 光传感器(19)检测缝纫机的下线(12)的剩余量。 在光传感器(19)中,发光装置与光接收装置一体形成,以节省空间。

    Sewing machine with a device for amending thread tightening by needle
positions
    37.
    发明授权
    Sewing machine with a device for amending thread tightening by needle positions 失效
    缝纫机具有用于通过针位置修正螺纹紧固的装置

    公开(公告)号:US4949657A

    公开(公告)日:1990-08-21

    申请号:US266385

    申请日:1988-11-02

    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。

    Sewing machine having an automatic lower thread tension device
    38.
    发明授权
    Sewing machine having an automatic lower thread tension device 失效
    缝纫机具有自动下线张力装置

    公开(公告)号:US4700644A

    公开(公告)日:1987-10-20

    申请号:US865549

    申请日:1986-05-20

    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。

    Sound proof device of a printer
    39.
    发明授权
    Sound proof device of a printer 失效
    打印机防声装置

    公开(公告)号:US4620810A

    公开(公告)日:1986-11-04

    申请号:US647131

    申请日:1984-09-04

    CPC分类号: B41J29/10

    摘要: With respect to a printer which carries out printing on a paper by impact of a wire of a printing head repeating movement, a sound proof device of a printer prevents the paper from transmitting fluttering under amplification to the paper sent to an entrance of the printer, and does not cause inconvenience to sending of the paper.

    摘要翻译: 对于通过打印头重复移动的线的冲击在纸张上进行打印的打印机,打印机的隔音装置防止纸张在放大时发送到发送到打印机入口的纸张上, 并且不会对纸张的发送造成不便。

    Pattern selecting device of an electronic control sewing machine
    40.
    发明授权
    Pattern selecting device of an electronic control sewing machine 失效
    电子缝纫机图案选择装置

    公开(公告)号:US4620496A

    公开(公告)日:1986-11-04

    申请号:US699864

    申请日:1985-02-08

    申请人: Susumu Hanyu

    发明人: Susumu Hanyu

    IPC分类号: D05B3/02 D05B19/10

    CPC分类号: D05B19/105

    摘要: This invention provides a pattern selecting device of an electronic control sewing machine which stores stitching pattern data in a memory device. A plurality of indicating windows are arranged in columns and rows at a front part of the sewing machine. The indications of the patterns are made selectively visible according to a stitching pattern group of each of plural modes, in response to the operation of a mode switching member, and stitching patterns in response to the pattern indications in the column or the row are successively selected, and the selected patterns are specifically indicated by illumination.

    摘要翻译: 本发明提供一种电子控制缝纫机的图案选择装置,其将缝合图案数据存储在存储装置中。 多个指示窗口在缝纫机前部的列和列中排列。 响应于模式切换构件的操作,根据多个模式中的每一个的拼接图案组,选择性地看到图案的指示,并且依次选择响应于列或行中的图案指示的缝合图案 ,并且所选择的图案通过照明具体指示。