公开(公告)号：US5305966A

公开(公告)日：1994-04-26

申请号：US903513

申请日：1992-06-24

申请人： Bruno Motta

发明人： Bruno Motta

IPC分类号： B65H59/22 ,  D03D47/34

CPC分类号： D03D47/34 ,  B65H59/22 ,  B65H2555/23 ,  B65H2555/24 ,  B65H2701/31

摘要： A device for braking traveling threads, wires or the like, in particular for use for the entry of the filling thread in looms (8), having a plurality of brake parts (B, B') which are under spring action with respect to each other and between which the thread (5) travels; in order to obtain optimal use, a cyclic change in the brake force is derived from the rotation by motor drive of one of the brake parts (B, B', C, C').

摘要翻译： 用于制动行进螺纹，电线等的装置，特别是用于在织机（8）中进入填充螺纹的装置，具有多个制动部件（B，B'），所述制动部件（B，B'）相对于每个 螺纹（5）在其间行进; 为了获得最佳使用，通过其中一个制动部件（B，B'，C，C'）的电动机驱动的转动导致制动力的循环变化。

公开(公告)号：US4462325A

公开(公告)日：1984-07-31

申请号：US474111

申请日：1983-03-10

申请人： Bruno Motta ,  Erminio Nava

发明人： Bruno Motta ,  Erminio Nava

IPC分类号： D05B27/22 ,  D05B27/08 ,  D05B27/02

CPC分类号： D05B27/08

摘要： An apparatus for adjusting stitch length in a sewing machine by means of a selectively adjustable eccentric possessing a self-locking device. The apparatus includes a support collar fixed on the machine's main shaft with an eccentric support mounted on the support collar which is operatively connected to a connecting rod for actuating the machine's feed dog. The eccentric support includes a central opening within which the adjustable eccentric is operatively disposed and which forms an integral part of a support ring rotatably mounted on the machine's main shaft. A manually operable push button serves to hold the support ring stationary and to release the self-locking device. The machine includes the conventional hand wheel fixed on one end of the machine's main shaft and, while the pushbutton is held in a depressed condition, the self-locking device remains in a released state thus enabling the selective rotation of the machine's main shaft by the hand wheel. This rotation effects a change in position of the adjustable eccentric within the eccentric support and the amount the connecting rod travels to actuate the feed dog. The selective positioning of the adjustable eccentric is maintained by release of the push button that activates the self-locking device.

摘要翻译： 一种用于通过具有自锁装置的可选择性调节的偏心调节缝纫机中的缝合长度的装置。 该装置包括固定在机器主轴上的支撑环，其中安装在支撑套环上的偏心支撑件，其可操作地连接到用于致动机器馈送狗的连杆。 偏心支架包括中心开口，可调节的偏心件可操作地设置在该中心开口中，并且其形成可旋转地安装在机器主轴上的支撑环的整体部分。 手动可操作的按钮用于将支撑环固定住并释放自锁装置。 该机器包括固定在机器主轴的一端的传统手轮，当按钮保持在凹陷状态时，自锁装置保持在释放状态，从而使机器的主轴能够选择性地旋转 方向盘。 该旋转影响偏心支架内的可调节偏心件的位置变化以及连杆行进以致动进给爪的量。 通过释放启动自锁装置的按钮来保持可调偏心轮的选择性定位。

公开(公告)号：US4452158A

公开(公告)日：1984-06-05

申请号：US373480

申请日：1982-04-30

申请人： Giovanni De Palma ,  Bruno Motta

发明人： Giovanni De Palma ,  Bruno Motta

IPC分类号： D05B29/00 ,  D05B29/02

CPC分类号： D05B29/02

摘要： A low-inertia presser device for sewing machines having a coil spring operatively connected to a pivotably mounted arm that carries the machine's presser foot. The spring is housed within a sleeve having a bifurcated end that straddles the arm. A thrust rod protruding from the sleeve has one end in engagement with the coil spring and the opposite end with that portion of the pivotably mounted arm extending through the bifurcated end of the sleeve. The biasing force of the coil spring is effective in minimizing the inertia of the moving parts and is effective in causing the presser foot to precisely and consistently track the movement of the feed dog above the needle plate, resulting in controlled movement of a workpiece in a straight line along the sewing axis.

摘要翻译： 一种用于缝纫机的低惯性按压装置，其具有可操作地连接到承载机器的压脚的可枢转地安装的臂的螺旋弹簧。 弹簧容纳在具有横跨臂的分叉端的套筒中。 从套筒突出的止推杆具有与螺旋弹簧接合的一端，并且具有可枢转地安装的臂的该部分的相对端延伸穿过套筒的分叉端。 螺旋弹簧的偏置力有效地使运动部件的惯性最小化，并且有效地使压脚精确地且一致地跟踪进给针在针板上方的运动，从而使得工件在 沿着缝纫线的直线。

公开(公告)号：US5492286A

公开(公告)日：1996-02-20

申请号：US133523

申请日：1993-10-07

申请人： Bruno Motta

发明人： Bruno Motta

IPC分类号： B65H59/10 ,  B65H59/22 ,  D03D47/34 ,  B65H59/20

CPC分类号： D03D47/34 ,  B65H59/22 ,  B65H2555/23 ,  B65H2555/24 ,  B65H2701/31

摘要： An apparatus for the variable braking of traveling threads, wires, or the like, in particular for use in connection with the introduction of the filling thread in looms, in which the thread (F) passes between two brake parts which can be brought into spring application against each other, one of which forms a spring element and the other an abutment, one of the brake parts being movable in order to vary the braking. In order to improve the efficiency, it is provided that the abutment is developed as a substantially cylindrical body (2) which is acted on rotatably by the spring element (1), having a first partial section (4, 5) which is substantially circular in cross section and a second partial section (8) which has at least one circumferential region (6, 7) of reduced cross section, the abutment being seated on the shaft (1) of an electric motor which is developed as stepping motor (9).

摘要翻译： 一种用于行进螺纹，电线等的可变制动的装置，特别是用于在织机中引入填充螺纹的情况下使用，其中螺纹（F）穿过可以进入弹簧的两个制动部件 其中一个形成弹簧元件，另一个形成基座，其中一个制动部件可移动以改变制动。 为了提高效率，提供了将基台展开为由弹簧元件（1）可旋转地作用的基本上圆柱形的主体（2），具有第一部分部分（4,5） 在横截面中具有至少一个具有减小横截面的周向区域（6,7）的第二部分区域（8），所述邻接件位于电动机的轴（1）上，所述电动机被开发为步进电机（9 ）。

公开(公告)号：US4970977A

公开(公告)日：1990-11-20

申请号：US377661

申请日：1989-07-10

申请人： Bruno Motta

发明人： Bruno Motta

IPC分类号： D05B13/02 ,  D05B57/02 ,  D05B57/32 ,  D05B85/00

CPC分类号： D05B57/02 ,  D05B13/02 ,  D05B57/32 ,  D05B85/006

摘要： A portable, single-thread chain stitch bag closing machine has a movable needle guiding device. A looper mounted so as to be slidable in a feed direction of a workpiece and pivotable transversely to the feed direction is protected against damage or breakage by a needle guide which guides a needle in the feed direction of the workpiece when the looper pivots towards the needle. The needle guide thereby ensures that a point of the looper reliably pivots past the needle, without coming into contact with the needle.

摘要翻译： 便携式单线链式封口机具有可动针引导装置。 安装成能够沿工件的进给方向滑动并且横向于进给方向可枢转的活套被保护以防止由引导件引起的针引导件的损坏或破损，所述针引导件当所述弯针朝向所述针头枢转时在所述工件的进给方向上引导针头 。 因此，针引导件可确保弯针的一点可靠地枢转穿过针而不与针接触。

公开(公告)号：US4438717A

公开(公告)日：1984-03-27

申请号：US268024

申请日：1981-05-29

申请人： Giancarlo Minella ,  Bruno Motta ,  Egidio Pedone

发明人： Giancarlo Minella ,  Bruno Motta ,  Egidio Pedone

IPC分类号： D05B55/06 ,  D05B1/10

CPC分类号： D05B55/06

摘要： A needle protector for sewing machines operatively connected to the machine's horizontal shaft for driving its looper in an orbital pathway about the machine's needles. The horizontal shaft is simultaneously driven through oscillating and reciprocating movements. The needle protector is carried on a pivotable support and the reciprocating movement of the horizontal shaft is effective in moving the needle protector toward and away from the needles in timed sequence with the stitch forming cycle.

摘要翻译： 用于缝纫机的针保护器，其可操作地连接到机器的水平轴，用于围绕机器的针在轨道上驱动其弯针。 水平轴同时通过摆动和往复运动驱动。 针保护器承载在可枢转支撑件上，并且水平轴的往复运动有效地使针保护器朝向和远离针的顺序以针脚形成周期顺序移动。