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公开(公告)号：US09822472B2
公开(公告)日：2017-11-21
申请号：US15138275
申请日：2016-04-26
发明人： Makoto Nakajima , Mikio Koike , Yu Noji
摘要： A sewing machine includes a needle bar turning apparatus. The apparatus includes: a needle bar holder swingably held with a fulcrum point as the center of rotation; a swing rod connected to the needle bar holder to transmit a driving force that swings the needle bar holder; a needle bar held by the needle bar holder, which is slidable along the axis and turnable with the axis as the center of rotation, and swingable together with the needle bar holder; a coupling member fixed to the needle bar such that it extends in a direction orthogonal to the needle bar; a guide shaft that extends along the needle bar; and a guide shaft connecting bracket fitted to the coupling member and the guide shaft such that it is movable relative to the coupling member in the coupling member extending direction, and turnable relative to the coupling member with a vertical line extending in the extending direction as the center of rotation.
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公开(公告)号：US09803302B2
公开(公告)日：2017-10-31
申请号：US14705307
申请日：2015-05-06
发明人： Jung-Nan Tsai
摘要： In a method for controlling sewing operation of a sewing machine, a stitch needle completes an in-and-out movement on a fabric with a first tension applied to an upper thread when the stitch needle, with respect to a fabric-feeding mechanism, is at a first relative position corresponding to a first pattern part of a predetermined stitch pattern. Afterward, the stitch needle is moved, with respect to the fabric-feeding mechanism, to a second relative position corresponding to a second pattern part of the predetermined stitch pattern, and completes an in-and-out movement on the fabric at the second relative position with a second tension, which is greater than the first tension, applied to the upper thread.
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公开(公告)号：US09605366B2
公开(公告)日：2017-03-28
申请号：US14556836
申请日：2014-12-01
发明人： Mikio Koike , Jun Mafune
摘要： A sewing machine includes an upper shaft rotatable so as to drive a needle bar, a lower shaft rotatable so as to drive a hook, an upper-shaft pulley attached to the upper shaft, a lower-shaft pulley attached to the lower shaft, a belt linking the upper-shaft pulley and the lower-shaft pulley, and synchronizing a rotation of the upper-shaft pulley and a rotation of the lower-shaft pulley with each other, a belt adjusting mechanism contacting the belt and changing a belt length at a tensioned side at which the belt is drawn, and a tensioner tensioning the belt in accordance with the change in the belt length of the belt at the tensioned side.
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公开(公告)号：US20150055232A1
公开(公告)日：2015-02-26
申请号：US14460246
申请日：2014-08-14
发明人： Ushio Yokoyama , Yosuke Ilzuka , Koji Maeda
CPC分类号： G02B25/005 , D05B3/02 , D05B3/22 , D05B3/24 , D05B79/00 , D05C3/02 , G02B7/02 , G02B25/002
摘要： The invention provides a magnifier for a sewing machine that is mounted on a sewing machine main body and magnifies a view of a front end of a needle which is mounted on a needle bar front end that moves vertically and a vicinity of a cloth presser.The magnifier includes: a supporting arm part A, at one end of which a lens holding part 2 having a holding unit 4 that detachably holds a lens is provided, and at the other end of which a mounting part 3 for mounting the magnifier on the sewing machine main body is provided; and a lens main body B that is constituted by connected part 6 which is detachable to the lens holding part 2, and a lens part 5 which is formed continuously to the connected part 6. To the lens holding part 2 of the supporting arm part A as well as the lens main body B, a turning control unit 7 is provided which controls a turning angle of the lens main body B in a predetermined range, and the turning control unit 7 controls a turning angle of the lens main body B that is mounted on the lens holding part 2, in a predetermined range.
摘要翻译： 本发明提供了一种用于缝纫机的放大镜，该放大镜安装在缝纫机主体上，并放大安装在垂直移动的压杆前端的针杆的前端的视图。 放大镜包括：支撑臂部分A，其一端设置有具有可拆卸地保持透镜的保持单元4的透镜保持部分2，另一端设有用于将放大镜安装在其上的安装部分3 提供缝纫机主体; 以及透镜主体B，其由可拆卸到透镜保持部2的连接部6和与连接部6连续形成的透镜部5构成。向支撑臂部A的透镜保持部2 以及透镜主体B，设置有将镜片主体B的转动角度控制在规定范围内的转动控制部7，转向控制部7控制透镜主体B的转动角度 安装在透镜保持部2上的预定范围内。
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公开(公告)号：US20140283723A1
公开(公告)日：2014-09-25
申请号：US14185492
申请日：2014-02-20
摘要： A sewing machine includes a needle bar, a needle bar up-and-down movement mechanism, a swinging mechanism, a lower shaft, an outer shuttle, a thread cutting mechanism, a rotation speed adjustment mechanism, and an actuator. The needle bar up-and-down movement mechanism is configured to move the needle bar up and down.The swinging mechanism is configured to swing the needle bar in a left-right direction. The lower shaft is configured to rotate in synchronization with up-down movement of the needle bar. The outer shuttle is configured to rotate along with rotation of the lower shaft. The thread cutting mechanism is configured to cut at least an upper thread. The rotation speed adjustment mechanism is configured to adjust a rotation speed of the outer shuttle. The actuator is a driving source of the thread cutting mechanism and the rotation speed adjustment mechanism.
摘要翻译： 缝纫机包括针杆，针杆上下运动机构，摆动机构，下轴，外梭，切线机构，转速调节机构和致动器。 针杆上下移动机构配置为上下移动针杆。 摆动机构构造成使针杆向左右方向摆动。 下轴构造成与针杆的上下移动同步地旋转。 外梭被构造成随着下轴的旋转而旋转。 螺纹切割机构构造成至少切割面线。 旋转速度调节机构构成为调整外梭的转速。 致动器是切线机构和转速调节机构的驱动源。
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公开(公告)号：US5072679A
公开(公告)日：1991-12-17
申请号：US530057
申请日：1990-05-29
申请人： George Lawrie
发明人： George Lawrie
摘要： A sewing machine has a vertical needle bar pivotable about a point thereon adjacent the upper end and moveable up and down. A sewing needle is detachably secured to the lower end of the bar and has an eye adjacent its lower end. The machine has an adjustable stitch width and, during its operation at a preset width, satisfies the requirement that the eye must be continuously properly positioned with respect to the machine hook at all times. The eye is vertically aligned with the hook point when the eye is in proximity of the hook, so as to insure reliable stitch formation at any selected stitch width. An arrangement for maintaining such proper positioning employs a first stop secured to the bar at a first location thereon intermediate its ends. A second stop is secured to the bar at a second and lower position intermediate its ends. A member is slidable along and is disposed on the bar in the space between the two stops. A spring is disposed on the bar between the first stop and the member. The member when moved upward to engage the spring causing the spring to exert a force on the first stop which moves the bar upwardly. The amount of upward movement of the bar is monotonically related to the amount of upward movement of the member. A device responsive to the movement of the hook engages the member to move the member upward in such manner as to maintain said proper positioning. The device includes a mechanism for pivoting the needle bar as required for zig zag operation and a stationary element disposed between the second stop and the member.
摘要翻译： 一种缝纫机具有一个垂直的针杆，可以围绕其上端的点枢转，上下移动。 缝纫针可拆卸地固定到杆的下端，并且在其下端附近具有眼睛。 该机器具有可调针迹宽度，并且在其预设宽度的操作期间，满足眼睛必须始终相对于机器钩连续适当定位的要求。 当眼睛靠近钩子时，眼睛与钩点垂直对齐，以确保在任何选择的针迹宽度上可靠的针迹形成。 用于保持这种适当定位的布置采用在其端部之间的第一位置固定到杆的第一止动件。 第二个止挡件在其端部之间的第二和下部位置处固定到杆。 一个构件可滑动并且设置在杆之间的两个挡块之间的空间中。 弹簧设置在第一止动件和构件之间的杆上。 当向上移动该构件以接合弹簧时，该构件使弹簧在第一止动件上施加力，从而向上移动该杆。 杆的向上运动量与构件向上运动的量单调相关。 响应于钩的移动的装置与构件接合以使构件向上移动以保持所述适当的定位。 该装置包括用于锯齿形操作所需的用于枢转针杆的机构和设置在第二止动件和构件之间的固定元件。
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公开(公告)号：US4875422A
公开(公告)日：1989-10-24
申请号：US191005
申请日：1988-05-06
申请人： Hitoshi Ishikawa
发明人： Hitoshi Ishikawa
摘要： A sewing machine has a bed housing having a needle penetrating hole at one end thereof, an arm housing rising from the other end of the bed housing and extending to the one end of the bed housing over the bed housing, a laterally-long needle bar arm rotatably held in the arm housing and having a needle at the front end thereof, and a drive unit for swinging the needle bar arm with respect to the bed housing accommodated in the bed housing. The arrangement of the laterally-long needle bar arm and the drive unit accommodated in the bed housing, can effectively reduce the overall height of the sewing machine. It further reduces the weight and cost of the sewing machine, since no conventional material, such as cast iron having a heavy weight is used and die cast aluminum associating with a higher cost, may be employed for producing the arm housing.
摘要翻译： 一种缝纫机具有在其一端具有针穿孔的床壳体，臂壳体从床壳体的另一端上升并且延伸到床壳体的一端在床壳体上，横向长的针杆 手臂可旋转地保持在臂壳体中并且在其前端具有针，以及驱动单元，用于相对于容纳在床壳体中的床壳摆动针杆臂。 横向长的针杆臂和容纳在床罩中的驱动单元的布置可以有效地降低缝纫机的整体高度。 这进一步降低了缝纫机的重量和成本，因为不需要常规的材料，例如具有重量的铸铁，并且可以使用与较高成本相关联的压铸铝来制造臂壳体。
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8.发明授权Stepper driven stitch patterning mechanism for sewing machines using spiral cam groove and follower 失效使用螺旋凸轮槽和跟随器的缝纫机步进驱动针迹图案化机构
公开(公告)号：US4873932A
公开(公告)日：1989-10-17
申请号：US304540
申请日：1989-02-01
申请人： Kenneth D. Adams
发明人： Kenneth D. Adams
IPC分类号： D05B3/02
CPC分类号： D05B3/02 , D05D2207/06 , Y10T74/2107
摘要： A sewing machine employing a stepper driven-stitch patterning mechanism including a stepper rotated cam with a spiral cam groove tracked by a follower formed with different cross sectional shape than the cam groove in order to provide only point contact with each side of the cam groove when spring biased therein. A spring arrangement biases the cam and follower together in a direction perpendicular to the axis of cam rotation, thus minimizing lost motion between cam and follower.
摘要翻译： 一种采用步进从动针迹图案化机构的缝纫机，包括步进旋转凸轮，其具有由与凸轮槽形成不同横截面形状的随动件跟踪的螺旋凸轮槽，以便仅在凸轮槽的每一侧提供点接触， 弹簧偏置在其中。 弹簧装置将凸轮和跟随器在垂直于凸轮旋转轴线的方向上偏置在一起，从而最小化凸轮和从动件之间的运动。
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公开(公告)号：US4739716A
公开(公告)日：1988-04-26
申请号：US880226
申请日：1986-06-30
申请人： Shigetsugu Nishimaki
发明人： Shigetsugu Nishimaki
摘要： Needles of a multiple-needle sewing machine are set on its needle holder so that the form which the needle tips form is not in alignment in parallel with the surface of a cloth to be sewn but deviates from the surface in vertical direction.Accordingly, since plural needles will stick into a cloth not all at once but with time lags, the forces exerted on the needles, needle holder, needle rods, etc. may be dispersed. It is also possible that more needles may be used than the conventional multiple-needle sewing machine.
摘要翻译： 多针缝纫机的针头设置在其针架上，使得针尖形成的形状不与待缝制布的表面平行地对准，而在垂直方向上偏离表面。 因此，由于多根针不会全部粘在布上，而是随着时间的推移而延伸，因此施加在针，针架，针杆等上的力可能会分散。 也可以使用比现有的多针缝纫机更多的针。
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公开(公告)号：US4616585A
公开(公告)日：1986-10-14
申请号：US793824
申请日：1985-11-01
申请人： Ulderico Marcandalli
发明人： Ulderico Marcandalli
CPC分类号： D05B3/02 , Y10T74/2179
摘要： A needle bar actuating device for double chain stitch and/or overlock sewing machines provided with a driving crank, one crank pin of which has three angularly differentiated reference surfaces in order to define an equal number of positions and lengths for said driving crank with respect to its axis of rotation; to each of said positions and lengths corresponding a different predetermined stroke length of the needle bar.
摘要翻译： 一种用于双链式针迹和/或包缝缝纫机的针杆致动装置，其具有驱动曲柄，其一个曲柄销具有三个有角度分化的参考表面，以便相对于所述驱动曲柄限定相等数目的位置和长度 其旋转轴; 每个所述位置和长度对应于针杆的不同的预定行程长度。
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