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公开(公告)号：US4307676A
公开(公告)日：1981-12-29
申请号：US952506
申请日：1978-10-18
申请人： Luigi Avesani , Roberto Sanvito
发明人： Luigi Avesani , Roberto Sanvito
CPC分类号： D05B35/10 , D05D2207/02
摘要： A device for simultaneously guiding at least two layers of fabric to the stitching instrumentalities of a sewing machine in which a portion of one layer has a greater width than that of the other. The device includes superposed passages with a limiting element within each passage for separately engaging and guiding the edges of the layers of fabric. One of the limiting elements is fixedly held within its respective passage and the other is movable. The movable limiting element serves to align that portion of the layer of wider width with the edge of the adjacent layer prior to joining the layers by an assembly seam.
摘要翻译： 一种用于同时将至少两层织物引导到缝纫机的缝合工具的装置，其中一层的一部分具有比另一层更大的宽度。 该装置包括在每个通道内具有限制元件的重叠通道，用于单独地接合和引导织物层的边缘。 限制元件中的一个固定地保持在其相应的通道内，另一个是可移动的。 可移动限制元件用于在通过组装接缝连接层之前将较宽宽度的层的部分与相邻层的边缘对准。
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公开(公告)号：US4367687A
公开(公告)日：1983-01-11
申请号：US268606
申请日：1981-05-29
申请人： Roberto Sanvito
发明人： Roberto Sanvito
CPC分类号： D05B75/02
摘要： A worktable for sewing units having sewing machines with free-arm type bases mounted on a support bench. The worktable is operatively connected to the support bench and includes a recess with a configuration conforming to the shape of the sewing machine base. By means of a selectively controlled lifting device, the worktable can be moved to and from operative association with the base as desired to accommodate either tubular seaming or seaming on flat workpieces which require a larger supporting surface.
摘要翻译： 具有安装在支撑台上的具有自由臂型基座的缝纫机的缝纫机的工作台。 工作台可操作地连接到支撑台，并且包括具有符合缝纫机基座的形状的构造的凹部。 借助于选择性控制的提升装置，工作台可以根据需要移动到与基座的可操作关联，以适应需要更大支撑表面的平坦工件上的管状接缝或接缝。
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公开(公告)号：US4116142A
公开(公告)日：1978-09-26
申请号：US837680
申请日：1977-09-29
申请人： Roberto Sanvito
发明人： Roberto Sanvito
CPC分类号： D05B35/105 , A41H15/00 , D05B35/102
摘要： A positioning device for a traveling gripper in a sewing unit having a cable element interconnecting the gripper with a return device for applying tension to a workpiece being advanced to the sewing machine and returning the gripper to its starting position upon release of the workpiece therefrom. The positioning device defines the grippers starting position and includes a pair of divergent tongues for receiving the gripper therebetween. The cable element is attached to the gripper at a location displaced from its longitudinal axis and is effective through its pulling force, in pivoting the gripper when entering the positioning device to a location in readiness for the next stitching cycle.
摘要翻译： 一种用于缝纫单元中的行进夹持器的定位装置，其具有将夹持器与用于向工件施加张力的复位装置相互连接的电缆元件，该工件前进到缝纫机，并且在从工件释放工件时将夹具返回到其起始位置。 定位装置限定夹具起始位置，并且包括一对用于在其间接收夹具的发散舌。 电缆元件在从其纵向轴线偏移的位置处附接到夹具，并且通过其拉力有效地将夹具当进入定位装置时枢转到准备下一个缝合循环的位置。
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公开(公告)号：US5495816A
公开(公告)日：1996-03-05
申请号：US281750
申请日：1994-07-28
申请人： Roberto Sanvito , Franco Marchesi
发明人： Roberto Sanvito , Franco Marchesi
摘要： In a two-needle sewing machine for making an ornamental stitch without a cover stitch, at least one intermediate lug (17) is provided which is disposed in side by side relation with respect to an upper thread take-up (13) engaged to the needle bar (7), said intermediate lug, in the absence of a workpiece (4) on the needle plate (8), is brought to a work position in which it interferes with one of the needle threads (4a, 4b) coming from an auxiliary thread take-up (12) being part of a feed unit for the needle threads. In the presence of the intermediate lug (17) in the work position, the orientation of the needle thread (4a) intercepted by said intermediate lug is suitably deviated with respect to the upper thread take-up (13), so as to cause a tension release on the needle thread itself during the raising steps of the needles (3a, 3) towards the upper dead center of their reciprocating motion.
摘要翻译： 在用于制造没有覆盖线圈的装饰线圈的双针缝纫机中，设置有至少一个中间凸耳（17），该中间凸耳相对于与该线圈接合的上线卷绕件（13）并排设置 针杆（7），所述中间凸耳在针板（8）上没有工件（4）的情况下进入工作位置，在该工作位置中，所述工作位置与来自其的针螺纹（4a，4b）干扰 作为针线的进给单元的一部分的辅助线吸收装置（12）。 在工作位置处的中间凸耳（17）的存在下，由所述中间凸耳截取的针线（4a）的取向相对于上线卷绕件（13）适当地偏离，从而使 在针（3a，3）朝向其往复运动的上死点的升高步骤期间，针线本身上的张力释放。
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公开(公告)号：US4590875A
公开(公告)日：1986-05-27
申请号：US692262
申请日：1985-01-17
CPC分类号： D05B73/00
摘要： An improved modular sewing machine which has a base unit including a lower horizontal unit and a vertical upright unit to which can be attached demountable upper and lower stitching instrumentalities, the mounting surfaces of the stitching instrumentalities being substantially coplanar.
摘要翻译： 一种改进的模块化缝纫机，其具有包括下水平单元和垂直直立单元的基座单元，可以将可拆卸的上下拼接工具附接到其上，所述拼接工具的安装表面基本上共面。
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公开(公告)号：US5253601A
公开(公告)日：1993-10-19
申请号：US4432
申请日：1993-01-14
申请人： Roberto Sanvito
发明人： Roberto Sanvito
CPC分类号： D05B27/06
摘要： A top feed unit comprises a vertical-movement kinematic mechanism (19) and a horizontal-movement kinematic mechanism (20) acting on a rocking arm (18) supporting a top feed dog (17) and operated by respective eccentrics (21, 29) fitted to an auxiliary shaft (37). The vertical- and horizontal-movement kinematic mechanisms (29, 20) and the auxiliary shaft (37) are contained in a housing structure (34) which can be detachably engaged to the sewing machine head (7). The auxiliary shaft (37) is connected to an interconnecting stem (41) rotatably connected to the sewing machine arm (6) and driven in rotation, through a toothed belt (46), by the upper drive shaft (8) of the sewing machine (2).
摘要翻译： 顶部进给单元包括垂直运动运动机构（19）和作用在支撑顶部进给爪（17）并由相应的偏心轮（21,29）操作的摇臂（18）上的水平运动运动机构（20） 安装在辅助轴（37）上。 垂直和水平移动运动机构（29,20）和辅助轴（37）被容纳在可以与缝纫机头部（7）可拆卸地接合的壳体结构（34）中。 辅助轴（37）通过缝纫机的上部驱动轴（8）连接到可旋转地连接到缝纫机机臂（6）并通过齿形带（46）旋转驱动的互连杆（41） （2）。
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公开(公告)号：US4612866A
公开(公告)日：1986-09-23
申请号：US717614
申请日：1985-03-29
申请人： Roberto Sanvito
发明人： Roberto Sanvito
CPC分类号： D05B25/00
摘要： A sewing machine is provided which is composed of two halves, each having sewing instrumentalities, a single, splined drive shaft and having an adjustment mechanism for connecting the two halves together so that the distances between the sewing instrumentalities can be varied.
摘要翻译： 提供一种缝纫机，其由具有缝纫工具的两个半部，单个花键驱动轴组成，并具有用于将两个半部连接在一起的调节机构，使得缝纫工具之间的距离可以变化。
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公开(公告)号：US4546714A
公开(公告)日：1985-10-15
申请号：US643572
申请日：1984-08-23
申请人： Roberto Sanvito
发明人： Roberto Sanvito
CPC分类号： D05B81/00
摘要： A sewing machine utilizing two needle rods driven by separated coaxial drive shafts and means for selectively interconnecting the two coaxial drive shafts. The means connecting the drive shafts can be selectively disengaged by means of an electromagnet depending upon whether it is desired to operate one or both of the needle rods at the same time.
摘要翻译： 一种使用由分离的同轴驱动轴驱动的两根针杆的缝纫机和用于选择性地互连两个同轴驱动轴的装置。 连接驱动轴的装置可以通过电磁体选择性地分离，这取决于是否期望同时操作一个或两个针杆。
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公开(公告)号：US4493277A
公开(公告)日：1985-01-15
申请号：US537768
申请日：1983-09-30
申请人： Roberto Sanvito
发明人： Roberto Sanvito
IPC分类号： D05B35/10
CPC分类号： D05B35/10
摘要： A positioning device for advancing a workpiece to and orienting the same in the sewing zone of a sewing unit. The device includes a feed table having a plurality of slots upstream of the sewing zone which are disposed at an angle relative to the line of sewing. A driven endless belt is operatively associated with each slot in the feed table and are disposed so as to partially protrude their respective slot. That portion of the endless belts protruding through their respective slots are caused to engage the underside of a workpiece and are effective in advancing the same to a position in front of the sewing machine's presser foot and in close proximity with a vertical guide wall extending parallel to the line of sewing.
摘要翻译： 一种用于在缝纫单元的缝合区域中使工件前进并使其定向的定位装置。 所述装置包括具有在所述缝合区域上游的多个槽的进给台，所述多个狭槽以相对于所述缝合线成一定角度设置。 驱动的环形带与进给台中的每个槽可操作地相关联并且被布置成部分地突出其相应的狭槽。 通过它们各自的槽突出的环形带的那部分被引入与工件的下侧接合，并且有效地将其推进到缝纫机压脚前面的位置，并且紧邻平行于缝纫机的压脚延伸的垂直导向壁 缝线。
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公开(公告)号：US5465675A
公开(公告)日：1995-11-14
申请号：US281751
申请日：1994-07-28
申请人： Giuseppe Pozzi , Roberto Sanvito
发明人： Giuseppe Pozzi , Roberto Sanvito
CPC分类号： D05B57/06
摘要： In a trimming sewing machine of the type adapted to carry out a two-thread overedge stitch, provision is made for a hooked element (15) integrally associated with the upper looper (10), which hooked element has an end work portion (15a) disposed in parallel side by side relation with the end work portion (10b) of the upper looper. The hooked element (15) engages the sewing thread (3) carried by the needle (2) at the beginning of the downward stroke of the needle. Following the downward stroke of the upper looper (10), the hooked element (15) drags along the sewing thread (3) beyond the lateral edge (5a) of the workpiece (5). Thus paired finishing portions (17a, 17b) are formed along the sewing thread (3) and they extend from each of the insertion points of the needle (2) into the workpiece (5) as far as close to the lateral edge (5a) of the workpiece (5).
摘要翻译： 在适于执行双线封闭线圈的修整缝纫机中，设置与上部打圈器（10）整体相关联的钩状元件（15），该钩形元件具有端部工作部分（15a） 与上部活套的端部工作部分（10b）平行并排设置。 在针的向下冲程开始时，钩状元件（15）接合由针（2）承载的缝纫线（3）。 在上部打圈器（10）的向下冲程之后，钩形元件（15）沿着缝合线（3）拖动超过工件（5）的侧边缘（5a）。 因此，成对的整理部分（17a，17b）沿着缝纫线（3）形成，并且它们从针（2）的每个插入点延伸到工件（5）中，直到靠近侧边缘（5a） 的工件（5）。
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