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    • 1. 发明申请
    • DEVICE FOR PASSING A YARN THROUGH THE EYE OF A NEEDLE OF A SAWING OR EMBROIDERING MACHINE
    • 通过眼镜或刺绣机的眼睛穿过纱线的装置
    • WO1995007383A1
    • 1995-03-16
    • PCT/CH1994000176
    • 1994-09-06
    • MEFINA S.A.JIMENEZ, AntonioMARTENOT, Lucien
    • MEFINA S.A.
    • D05B87/02
    • D05B87/02
    • The device (1) comprises a support (2) for a sliding rod (11) subjected to the force of a spring (12) tensioned between a block (11a) and a needle-clamp (9). The rod carries a casing (13) enclosing two slides (17 and 18) of which one (17) carries a hook (20) and the other slide (18) carries a sleeve (18a). A control lever (23) hinged to the casing and subjected to the force of a second spring (25) holds the slides (17 and 18) in a retracted position of the hook (20). The lever (23) comprises two sides (23a, 23b) having each a cam (21, 22) cooperating with sensors (15b, 16b) which are carried by two connecting parts (15, 16) hinged to the casing (13) and to the slides (17, 18). The cams (21, 22) determine the sequence of the motion of the slides in the casing (13), their amplitude and nature of their displacement during the rocking of the lever (23) against the force of the spring (25) so as to guide the hook from its retracted position to a position where it goes through the needle eye in order to catch a yarn placed on a portion (23e) of the liver (23).
    • 装置(1)包括用于经受在块(11a)和针夹(9)之间张紧的弹簧(12)的力的滑动杆(11)的支撑件(2)。 该杆承载着一个包围两个滑块(17和18)的壳体(13),一个滑架(17)承载一个钩子(20),另一个滑块(18)承载一个套筒(18a)。 控制杆(23)铰接到壳体并经受第二弹簧(25)的力将滑块(17和18)保持在钩(20)的缩回位置。 所述杠杆(23)包括两个侧面(23a,23b),每个凸轮(21,22)与传感器(15b,16b)配合,所述传感器由两个铰接到所述壳体(13)的连接部分(15,16)承载;以及 (17,18)。 凸轮(21,22)确定滑架在壳体(13)中的运动顺序,它们在杠杆(23)摆动期间相对于弹簧(25)的作用而位移的幅度和性质,以便 以将钩从其缩回位置引导到其穿过针眼的位置,以便捕捉放置在肝脏(23)的一部分(23e)上的纱线。
    • 2. 发明申请
    • ASSEMBLY FOR MOVABLY MOUNTING A TOOL ON A DRIVING DEVICE
    • 组装在驱动装置上安装工具
    • WO1991005900A1
    • 1991-05-02
    • PCT/CH1990000239
    • 1990-10-10
    • MEFINA S.A.JIMENEZ, Antonio
    • MEFINA S.A.
    • D05B55/02
    • D05B29/12D05B55/02D05D2203/00Y10T279/17
    • The assembly comprises a tool holder (3) for a tool (1) such as a punch, a drill or a sewing-machine needle, and a clamping head (4) mounted on the end of a spindle (2), in particular a needle bar. The tool holder comprises an insert which rests on a seat (4a) of the head and is movably supported by it by means of the operation of two jaws (6a and 7a), one of which is provided at one end with two toggle levers (6 and 7) located on the body of the clamping head (4) and subject, at their other end, to a spring which acts to keep the jaws in a clamped position. An accurate positioning of the tool holder on the seat is obtained by the engagement of the upper edge of the tool holder in the bottom of a groove provided in the upper portion of the wall of the seat, and by maintaining this engagement by means of the thrust from tabs (10a and 10b) of a leaf spring (10) fixed to the head (4), against dog points (3f and 3g) of the tool holder (3).
    • 组件包括用于诸如冲头,钻头或缝纫机针的工具(1)的工具架(3)和安装在主轴(2)的端部上的夹紧头(4),特别地, 针杆。 工具架包括一个插入件,该插入件位于头部的座位(4a)上,并通过两个钳爪(6a和7a)的操作而可移动地支承在其上,其中一个夹爪的一端设置有两个肘节杆 6和7)位于夹紧头(4)的主体上,并且在另一端处接受用于将夹爪保持在夹紧位置的弹簧。 通过将工具架的上边缘接合在设置在座椅的壁的上部的槽的底部中并且通过保持该接合的方式来获得工具架在座椅上的精确定位 抵靠固定在头部(4)上的板簧(10)的突出部(10a和10b)抵靠工具架(3)的爪点(3f和3g)。
    • 3. 发明申请
    • COMPUTER-CONTROLLED ELECTRIC SEWING MACHINE
    • 电脑控制电动缝纫机
    • WO1987001146A1
    • 1987-02-26
    • PCT/CH1986000110
    • 1986-07-29
    • MEFINA S.A.JIMENEZ, AntonioBARUFFA, OlindoBUCHILLY, Claude
    • MEFINA S.A.
    • D05B59/00
    • D05B59/00
    • The present computer-controlled electric sewing machine wherein the rotational speed of the central drive motor (M) is servo-controlled by means of a regulating circuit (O, CL, Cs) including a tachymetric control generator (G) has a mechanism for driving a support of a cop (C) to be reeled, comprising the assembly of structural elements of the generator (G), a double-acting clutch device (EA) enabling mechanical connection of the rotor of the generator (G) either to the central motor (M) or to the cop support, electric switch means (IE, IG) providing for in the latter case the connection of the armature of the generator (G) to an electric supply source (A) while preventing current from being supplied to the central control motor (M) of the machine.
    • 本发明的计算机控制电动缝纫机具有通过包括速度测量控制发生器(G)的调节电路(O,CL,Cs)进行伺服控制的中央驱动电动机(M)的旋转速度, 包括发生器(G)的结构元件的组件的双绞式离合器装置(EA),其能够将发电机(G)的转子机械地连接到发电机(G)的中心 电动机(M)或辅助支架,电开关装置(IE,IG)在后一种情况下提供发电机(G)的电枢与电源(A)的连接,同时防止电流被供给 机器的中央控制电机(M)。