Needle clamping mechanism of a sewing machine
    43.
    发明授权
    Needle clamping mechanism of a sewing machine 失效
    缝纫机针夹紧机构

    公开(公告)号:US5775244A

    公开(公告)日:1998-07-07

    申请号:US698505

    申请日:1996-08-15

    IPC分类号: D05B55/02

    CPC分类号: D05B55/02

    摘要: A needle clamping mechanism capable of preventing tip end positions of a pair of needles from being set back or forth and right or left, thereby obtaining excellent sewing performance. The needle clamping mechanism comprises a needle bar comprising a needle bar body, a protrusion protruding downward from a lower surface of the needle bar body and being semicircular in cross section, and having a flat surface portion at a chord thereof, a needle clamp member which the needle bar is engaged in a fixed to, the needle clamp member having a recess for receiving the needle bar body, a needle containing hole being opened at a lower end surface of the needle clamp member, the needle containing hole comprising a semicircular cross sectional portion for receiving the protrusion of the needle bar and a pair of circular arc grooves for receiving needle circular portions provided at upper ends of a pair of needles individually, wherein the needles respectively received in the pair of circular arc grooves are respectively pressed by tip ends o0: set screws which are respectively screwed into the needle clamp member, and each of the needle circular portions is pressed against each of side walls of the needle containing hole, a needle flat surface portion at the upper end of each of the needles is pressed against and fixed to a flat surface portion of the protrusion.

    摘要翻译: 一种能够防止一对针的前端位置向前后左右的针夹持机构,从而获得良好的缝合性能。 针夹持机构包括针杆,该针杆包括针杆体,从针杆体的下表面向下突出并且呈横截面为半圆形的突起,并且具有平坦的表面部分在其弦上的针杆体, 所述针杆与所述针夹具构件接合,所述针夹具具有用于容纳所述针杆体的凹部,所述针容纳孔在所述针夹持构件的下端面开口,所述针容纳孔包括半圆形横截面 用于接收针杆的突起的部分和用于接收设置在一对针的上端的针状圆形部分的一对圆弧槽,其中分别容纳在一对圆弧槽中的针分别被尖端 o0:分别拧入针夹具的定位螺钉,每个针圆形部分被按压 在针容纳孔的侧壁上,每个针的上端的针平面部被按压并固定到突起的平坦表面部分。

    Right looper release mechanism in overlock sewing machine
    44.
    发明授权
    Right looper release mechanism in overlock sewing machine 失效
    缝纫缝纫机右侧发条机构

    公开(公告)号:US5732639A

    公开(公告)日:1998-03-31

    申请号:US693834

    申请日:1996-08-01

    IPC分类号: D05B57/34 D05B57/06

    CPC分类号: D05B57/06

    摘要: A right looper release mechanism in an overlock sewing machine is disclosed comprising a vertically movable needle having a needle thread, a right looper disposed under the vertically movable needle and reciprocally movable in a direction crossing the vertically movable needle, a rear driving lever attached to the right looper and engaged in a right looper shaft so as to be freely turned relative thereto, a front driving lever fixed to the right looper shaft, a fixing screw member inserted in a throughhole of the front driving lever so as to be freely turned, said fixing screw member having a male screw being screwed into a female screw 3a of the rear driving lever so as to transmit a motion of the right looper shaft to the rear driving lever by way of the front driving lever, and an elastic member for elastically biasing the fixing screw member in a direction to release the fixing screw member so as to be unscrewed from the female screw of the rear driving lever.

    摘要翻译: 本发明公开了一种包缝机中的右活套释放机构,其特征在于,包括:具有针线的可上下移动的针,配置在所述可垂直移动的针的下方的右侧弯针,并且能够沿与上述上下移动的针交叉的方向往复移动, 右弯针并且相对于其自由转动地接合右弯针轴,固定在右弯针轴上的前驱动杆,插入前驱动杆的通孔中以便自由转动的固定螺钉构件, 具有外螺纹的固定螺钉构件被拧入后驱动杆的内螺纹3a中,以便通过前驱动杆将右活套杆轴运动到后驱动杆,弹性构件用于弹性偏置 所述固定螺钉构件沿着解除所述固定螺钉构件的方向从所述后驱动杆的内螺纹旋下。

    Looper switching mechanism in overlock sewing machine
    45.
    发明授权
    Looper switching mechanism in overlock sewing machine 失效
    套圈切换机构在缝纫机上

    公开(公告)号:US5697310A

    公开(公告)日:1997-12-16

    申请号:US693811

    申请日:1996-08-01

    IPC分类号: D05B57/06 D05B61/00

    CPC分类号: D05B61/00

    摘要: In a looper switching mechanism for an overlock sewing machine, a needle having a needle thread and movable vertically, is provided. A right looper having a thread hole at a tip end through which a right looper thread is inserted, includes a mounting hole into which a shaft portion of a spreader member body is attached. A hook portion having a tip end engageable with the thread hole is coupled to and extends from the spreader member body thereby forming the a spreader.

    摘要翻译: 本发明提供一种用于包缝机的弯针切换机构,其特征在于,具有针线并且能够垂直移动的针。 具有插入右弯针线的前端具有螺纹孔的右弯针包括安装孔,安装有吊具构件主体的轴部的安装孔。 具有与螺纹孔接合的尖端的钩部分与吊具构件主体联接并从其延伸,从而形成吊具。

    Rolled hem switching device for overlock machine
    46.
    发明授权
    Rolled hem switching device for overlock machine 失效
    卷帘机用卷边切换装置

    公开(公告)号:US5529003A

    公开(公告)日:1996-06-25

    申请号:US346649

    申请日:1994-11-30

    CPC分类号: D05B37/04

    摘要: A rolled hem switching device comprises a lower knife mounting base which is arranged below a throat plate and is adjustably movable in a lateral direction by way of a laterally moving mechanism provided on a sewing machine frame, a moving pawl which slidably engages a guide groove extending in a cloth feeding direction on a side surface of the lower knife mounting base, a presser member which is fixed to the lower knife mounting base and slidably supports a side surface of the moving pawl and which comprises a horizontal slit of a given length for projecting a projecting portion of the moving pawl therethrough and a lower knife which is fixed to a side surface of the lower knife mounting base at a front side of the presser member for slidably supporting a side surface of the moving pawl. As a result, it is possible not only to switch between forming overlock stitches and forming rolled hem, but also to adjust the width of the overlock stitches by integrally adjusting the lateral positions of the moving pawl and lower knife without changing a throat plate and it is also possible to stably hold the moving pawl.

    摘要翻译: 卷边切换装置包括下刀安装基座,其布置在喉板下方并且可通过设置在缝纫机框架上的横向移动机构在横向上可调节地移动;移动棘爪,其可滑动地接合延伸的引导槽 在下刀安装基座的侧面上沿着送布方向,压紧构件固定在下刀安装座上并可滑动地支撑移动爪的侧面,并且包括一给定长度的水平狭缝,用于突出 所述移动棘爪的突出部分穿过其中;以及下刀,其在所述按压部件的前侧固定到所述下刀安装基座的侧表面,用于可滑动地支撑所述移动爪的侧表面。 结果,不仅可以在形成包缝线圈和成形卷边之间进行切换,而且可以通过在不改变喉板的情况下整体地调节移动爪和下刀的横向位置来调整外嵌线圈的宽度 也可以稳定地保持移动爪。

    Thread guide holder device for sewing machine
    47.
    发明授权
    Thread guide holder device for sewing machine 失效
    缝纫机导丝架装置

    公开(公告)号:US5499590A

    公开(公告)日:1996-03-19

    申请号:US336585

    申请日:1994-11-09

    IPC分类号: D05B43/00 D05B51/00 D05B53/00

    CPC分类号: D05B51/00

    摘要: A thread guide holder device comprises a thread guide holder which is mounted on a spool stand base and has thread guides each for guiding a thread therethrough, wherein the thread guide holder is mounted on the spool stand base by way of damping materials. As a result, it is possible to restrain the oscillation of the thread guide holder during sewing operation so as to smoothly draw out the threads through the thread guides of the thread guide holder and consequently prevent irregular stitches and restrain an eye-offensive oscillation of the thread guide holder.

    摘要翻译: 导丝架装置包括一个安装在卷轴支架底座上的导线架,并具有用于引导穿过其中的线的导线器,其中导线架通过阻尼材料安装在线轴架底座上。 结果,可以在缝制操作期间限制导线架的摆动,以便通过导线架的导线器平滑地拉出线,从而防止不规则的线圈,并且抑制线 导丝架

    Extension, free arm and auxiliary beds for overlock machine
    48.
    发明授权
    Extension, free arm and auxiliary beds for overlock machine 失效
    伸缩臂,自由臂和辅助床用于包缝机

    公开(公告)号:US5476052A

    公开(公告)日:1995-12-19

    申请号:US321697

    申请日:1994-10-12

    CPC分类号: D05B73/04 Y10T292/0902

    摘要: A bed structure for an overlock machine comprises a fixed bed formed by connecting an extension bed to a portion of the front side of a main bed, a substantially box-shaped free arm cover transversely slidably and removably disposed contiguously with a main frame beside a throat plate so as to cover a looper; and a substantially U-shaped auxiliary bed having a front portion, a side portion and a rear portion, disposed so as to surround all sides of of the free arm cover excluding one side of the free arm cover adjacent to the main frame with the front portion thereof inserted in a gap between the extension bed and the free arm cover and with the end surfaces of the lower wall and the lower side wall of the side portion thereof in contact with the side surfaces of the main frame and joined to the extension bed with a horizontal land portion formed in the surface of the front portion thereof fitted in a horizontal groove formed in the corresponding surface of the extension bed so as to be transversely movable relative to the extension bed.

    摘要翻译: 用于包缝机的床结构包括通过将延伸床连接到主床的前侧的一部分而形成的固定床,基本上为箱形的自由臂盖,横向可滑动并可拆卸地设置在喉部旁边的主框架 盘子,以覆盖一个弯针; 以及具有前部,侧部和后部的基本上U形的辅助床,其设置成围绕自由臂盖的所有侧面,除了与主框架相邻的自由臂盖的一侧之外,前部 其部分插入在延伸床和自由臂盖之间的间隙中,并且其侧壁的下壁和下侧壁的端表面与主框架的侧表面接触并连接到延伸床 在其前部的表面上形成有水平的陆地部分,其装配在形成在延伸床的相应表面中的水平槽中,以便能够相对于延伸床横向移动。

    Method for producing ethylene copolymer
    49.
    发明授权
    Method for producing ethylene copolymer 失效
    生产乙烯共聚物的方法

    公开(公告)号:US5059662A

    公开(公告)日:1991-10-22

    申请号:US484920

    申请日:1990-02-26

    CPC分类号: C08F210/02

    摘要: A method for producing ethylene copolymer using ethylene and at least a comonomer of unsaturated glycidyl monomer in the presence of a polymerization initiator, wherein the undesirable thermal polymerization of the unsaturated glycidyl monomer in the preparation system can be avoided and the operation can be continued for a long period of time in a stable condition. The method is characterized in that at least two kinds of polymerization inhibitors are used and the inhibition factor of one polymerization inhibitor added to the unsaturated glycidyl monomer is smaller than that of another polymerization inhibitor added to the lubricating oil for compressors and the unsaturated glycidyl monomer containing 100 to 2000 ppm of a polymerization inhibitor is introduced from the inlet side of a high pressure compressor into the reaction system and the lubricating oil containing 0.1 to 10% by weight of a polymerization inhibitor is used for the high pressure compressor.

    摘要翻译: 一种在聚合引发剂存在下使用乙烯和至少不饱和缩水甘油基单体的共聚单体生产乙烯共聚物的方法,其中可以避免制备体系中不饱和缩水甘油基单体的不期望的热聚合,并且可以继续进行操作 长时间处于稳定状态。 该方法的特征在于使用至少两种聚合抑制剂,加入到不饱和缩水甘油基单体中的一种聚合抑制剂的抑制因子小于加入到用于压缩机的润滑油中的另一种阻聚剂的抑制因子,并且含有 从高压压缩机的入口侧将100〜2000ppm的阻聚剂引入反应体系中,将含有0.1〜10重量%阻聚剂的润滑油用于高压压缩机。