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1. 发明授权

US11339515B2 Sewing machine 有权
公开(公告)号：US11339515B2
公开(公告)日：2022-05-24
申请号：US17058376
申请日：2019-06-26
申请人： SUZUKI MANUFACTURING, LTD.
发明人： Tohru Sakuma , Mitsuru Sato
IPC分类号： D05B27/02 , D05B27/24 , D05B69/02 , D05B29/02
摘要： Provided is a sewing machine that can be reduced in size by employing a simple configuration for a feed dog drive device. A lateral feed drive unit (8) and a vertical drive unit (9) transmit rotation of a drive shaft (7) to a feed dog (3). The feed dog (3) is supported by a swingable feed base (5). A square piece (18) is provided at a lower end of a raising and lowering link (15) of the vertical drive unit (9). A guide member (19) including a guide groove (20) configured to guide the square piece (18) is disposed right under the feed base (5). An upper end of the raising and lowering link (15) is connected to a part of the feed base (5) between the swinging shaft (6) and the feed dog (3).

2. 发明申请

US20210087728A1 THREAD FEEDING DEVICE OF DECORATIVE STITCH SEWING MACHINE 有权
公开(公告)号：US20210087728A1
公开(公告)日：2021-03-25
申请号：US16630561
申请日：2018-04-24
申请人： SUZUKI MANUFACTURING, LTD.
发明人： MITSUHARU SUZUKI , TOHRU SAKUMA
IPC分类号： D05B9/00 , D05B47/04 , D05B57/06
摘要： The present invention provides a thread feeding device of a decorative stitching sewing machine. The thread feeding device feeds a needle thread, an upper looper thread, and a lower looper thread in the amounts required for sewing one stitch such that the position of a stitch looping point of the threads changes. The thread feeding device includes: a thread accumulator 500 having thread accumulating elements 13a to 13d and 14a to 14d which measure the thread accumulation amounts of predetermined lengths of the needle thread, the upper looper thread, and the lower looper thread, and thread accumulation amount control elements 15 to 18 which adjust the amounts of the threads required for sewing one stitch in an increasable and decreasable manner within the range of thread accumulation amounts of predetermined lengths at the time of fabric feeding, and which release the threads to a stitch forming device when a stitch is formed; a thread feed drive mechanism 600 which drives each of the elements; and a thread feed control unit having a program which dives the thread accumulation amount control elements for each stitch to feed the threads in an increasable and decreasable manner so as to increase or decrease the threads within the range of a total thread feeding amount that is maintained constant, including a fabric feeding amount, a fabric thickness and an overlocking width, thereby to change the position of the stitch looping point of the needle thread, the upper looper thread, and the lower looper thread, thus controlling the decorative stitching according to a stitching decoration pattern.

3. 发明申请

US20190048503A1 SEWING MACHINE THREADING DEVICE 审中-公开
公开(公告)号：US20190048503A1
公开(公告)日：2019-02-14
申请号：US15564312
申请日：2016-06-30
申请人： SUZUKI MANUFACTURING, LTD.
发明人： TOHRU SAKUMA , MITSUHARU SUZUKI , SHIGENORI KUDO , MITSURU SATOU
IPC分类号： D05B87/00
CPC分类号： D05B87/00 , D05D2207/04
摘要： Provided is a sewing machine threading device, comprising: hermetic lips (7a-7e) which are capable of making a hermetic contact with a peripheral band-ring-shaped region (22) of needles (1a, 1b, 1e-1g) which surrounds thread exits (5a-5e) of needle eyes (1-1d, 1h-1j) of the needle, and which further comprises a corresponding peripheral band-ring-shaped pad (24) which surrounds suction port holes (6a-6e) which draw in air from the thread exits of the needle eyes of the needles; a needle thread suction conduit pipe which is connected to the suction port holes of the hermetic lips; a position switching mechanism which, when threading the needle, moves the hermetic lips to a threading position such that the hermetic lips are in contact with the needle with the suction port holes being aligned with the thread exits of the needle eyes of the noodle, and, when forming a stitch, retracts the hermetic lips from the needle and moves said hermetic lips to a standby position; and a pump which, with the needle thread suction conduit pipes being connected to a suction port, takes in one end of the thread which is to be inserted into thread entrances of the needle eyes of the needles when threading the needles in the suction port from the thread exits of the needle eyes of the needles via the suction port holes by way of the needle thread suction conduit pipes, thereby threading the one end of the thread through the needle eyes of the needles.

4. 发明授权

US09347163B2 Gas carrying threading device of sewing machine 有权
标题翻译：缝纫机气体穿线装置
公开(公告)号：US09347163B2
公开(公告)日：2016-05-24
申请号：US14406815
申请日：2012-10-26
申请人： SUZUKI MANUFACTURING, LTD.
发明人： Tohru Sakuma , Masato Ishikawa
IPC分类号： D05B63/00 , D05B57/02 , D05B87/00 , D05B1/10 , D05B87/02
CPC分类号： D05B63/00 , D05B1/10 , D05B57/02 , D05B87/00 , D05B87/02
摘要： An engaging clutch for respectively transmitting power from a sewing machine motor to a drive shaft driving a stitch forming device including the looper at the time of the stitch formation or to the gas supply source at the time of the looper threading comprises a structure which is moved to one of a gas supply drive member which transmits the power to the gas supply source and a stitch forming drive member which is fastened to one end of the drive shaft and transmits the power to the stitch forming device so that approach/separation becomes free depending on a manual operation of a looper threading/stitch forming changeover manual operating portion and transmits the power from the sewing machine motor through a clutch hollow shaft and retains a connecting state when connecting to the gas supply drive member.
摘要翻译：一种用于在缝合线穿线时将来自缝纫机电动机的功率分别传递到驱动轴的驱动轴，其包括在针迹形成时包括弯针的线圈形成装置或在气针穿线时将气体供给到气体供给源的接合离合器，一个气体供给驱动部件中的一个，该气体供给驱动部件将动力传递给气体供给源;一个线圈形成驱动部件，其固定在驱动轴的一端，并将动力传递给线圈形成装置，使得接近/ 在手动穿线/缝合形成切换手动操作部的手动操作中，通过离合器中空轴将来自缝纫机马达的动力传递到连接气体供给驱动部件的状态。

5. 发明授权

US11639569B2 Sewing machine 有权
公开(公告)号：US11639569B2
公开(公告)日：2023-05-02
申请号：US17289061
申请日：2019-07-23
申请人： SUZUKI MANUFACTURING, LTD.
发明人： Mitsuru Sato
IPC分类号： D05B27/04 , D05B27/08
摘要： Provided is a sewing machine capable of positioning feed dogs with a sufficient distance below the upper surface of a throat plate when the feed dogs are retracted. Feed dogs 3 protrude and retract from a throat plate 1. A horizontal feed drive unit 8 converts the rotation of a drive shaft 7 into a reciprocating motion in the horizontal direction and transmits the horizontal reciprocating motion to the feed dogs 3. A vertical drive unit 9 converts the rotation of the drive shaft 7 into a reciprocating motion in the vertical direction and transmits the vertical reciprocating motion to the feed dogs 3. A vertical position changing part moves turn-back points P at both ends of a forward path and a return path when the feed dogs 3 reciprocate in the horizontal direction below the throat plate 1.

6. 发明申请

US20150233033A1 PRESSER-FOOT LIFTING AND LOWERING DEVICE FOR SEWING MACHINE 有权
标题翻译：用于缝纫机的压脚提升和下降装置
公开(公告)号：US20150233033A1
公开(公告)日：2015-08-20
申请号：US14414929
申请日：2013-06-05
申请人： SUZUKI MANUFACTURING, LTD.
发明人： Tohru Sakuma
IPC分类号： D05B29/02
CPC分类号： D05B29/02 , D05B29/06
摘要： When lifting and lowering the presser-foot by either of the manual operation lever and the knee operation lifter, the composition of the lifting and lowering mechanism can be simplified, the number of parts can be reduced and the production can be performed easily. The present invention is provided with a presser bar lifting and lowering mechanism (30) which has: a lifter operating plate which is disposed upon a pedestal (2a) which supports an arm (2) upon a bed (3) and which is vertically movable depending on a vertical movement operation of a manual operation lever (31); a pivot rod in which one end is joined to the lifter operating plate via a first joining link; and a presser-foot bar lifting and lowering plate which is joined to a second joining link which is joined to the other end of the pivot rod, and which is joined to the presser-foot bar via a presser bar holder which is fixed to the presser-foot bar. The present invention is provided with a knee lifter mechanism (50) which is disposed upon a right lower end (3a) of the bed, which is equipped with a knee operation lifter (51), and which has a knee lifter drive arm which rotates by a swing of the knee operation lifter, wherein the knee lifter drive arm is joined to the lifter operating plate.
摘要翻译：当通过手动操作杆和膝盖操作升降器中的任何一个提升和降低压脚时，可以简化升降机构的组成，可以减少零件数量并且可以容易地进行生产。本发明提供一种压杆提升和降下机构（30），其具有：升降器操作板，其设置在支撑在床（3）上的臂（2）的基座（2a）上，并且其可垂直移动取决于手动操作杆（31）的垂直移动操作; 枢轴杆，其一端通过第一连接连接件连接到升降器操作板; 以及与所述枢轴杆的另一端接合的第二接合连接部的压脚杆升降板，并且经由压脚杆固定在所述压脚杆上，压脚吧。本发明提供一种膝盖提升机构（50），其设置在床的右下端（3a）上，该提升机构配备有膝盖操作升降器（51），并具有旋转的膝盖升降器驱动臂通过膝关节操作升降机的摆动，其中膝盖升降器驱动臂连接到升降器操作板。

7. 发明申请

US20150167218A1 GAS CARRYING THREADING DEVICE OF SEWING MACHINE 有权
标题翻译：气体承载缝纫机螺纹装置
公开(公告)号：US20150167218A1
公开(公告)日：2015-06-18
申请号：US14406815
申请日：2012-10-26
申请人： SUZUKI MANUFACTURING, LTD.
发明人： Tohru Sakuma , Masato Ishikawa
IPC分类号： D05B63/00 , D05B87/00 , D05B1/10 , D05B57/02
CPC分类号： D05B63/00 , D05B1/10 , D05B57/02 , D05B87/00 , D05B87/02
摘要： A safety device is not required for avoiding a transition to a stitch forming state from a looper threading state during a gas supply operation of a gas supply pump, and a threading can be performed more easily with one-touch operation to a looper by one-handed operation of small number of times on the operation for being simplified on mechanism. An engaging clutch (60) for respectively transmitting power from a sewing machine motor (M) to a drive shaft (5) driving a stitch forming device including the looper at the time of the stitch formation or to the gas supply source (40) at the time of the looper threading comprises a structure which is moved to one of a gas supply drive member (61) which transmits the power to the gas supply source and a stitch forming drive member (64) which is fastened to one end of the drive shaft and transmits the power to the stitch forming device so that approach/separation becomes free depending on a manual operation of a looper threading/stitch forming changeover manual operating portion and transmits the power from the sewing machine motor through a clutch hollow shaft (22) and retains a connecting state when connecting to the gas supply drive member.
摘要翻译：在气体供给泵的气体供给操作期间，不需要安全装置来避免从气圈穿线状态向套圈成形状态的过渡，并且可以通过一次触摸操作更方便地进行穿线，手动操作少量的操作简化机制。一种接合离合器（60），用于将缝纫机马达（M）的动力分别传递到驱动轴（5），该驱动轴（5）在线圈形成时驱动包括弯针的线圈形成装置或者气体供给源（40）活口螺纹穿刺的时间包括一个结构，该结构被移动到将气体传递到气体供应源的气体供应驱动构件（61）和紧固到驱动器的一端的线圈形成驱动构件（64）之一轴，并且将动力传递到线圈形成装置，使得根据手动穿线/缝合形成转换手动操作部的手动操作使得接近/分离变得空闲，并且通过离合器空心轴（22）将来自缝纫机马达的动力传递给轴线，并且当连接到气体供应驱动构件时保持连接状态。

8. 发明申请

US20220282415A1 SEWING MACHINE THREADING DEVICE 有权
公开(公告)号：US20220282415A1
公开(公告)日：2022-09-08
申请号：US17613116
申请日：2020-06-18
申请人： SUZUKI MANUFACTURING, LTD.
发明人： MASATO ISHIKAWA
IPC分类号： D05B87/02
摘要： Provided is a sewing machine threading device that is compactly configured, and that is capable of preventing a thread hooking claw from disturbing sewing work. When an up-and-down movement operation lever 9 is raised, a thread hooking claw 10 is located above a sewing needle not to disturb sewing work. When the up-and-down movement operation lever 9 is lowered, a sliding member 15 slides along a thread hooking guide shaft 16 to cause the thread hooking claw 10 to be lowered together with a thread hooking support rod 13, rotating unit 23 rotates the thread hooking claw 10 from behind the sewing needle toward an eye of the sewing needle in connection with lowering of the thread hooking support rod 13, and the thread hooking claw 10 is inserted into the eye of the sewing needle.

9. 发明授权

US10422061B2 Sewing machine needle clamping device 有权
公开(公告)号：US10422061B2
公开(公告)日：2019-09-24
申请号：US15312039
申请日：2016-06-30
申请人： SUZUKI MANUFACTURING LTD.
发明人： Tohru Sakuma
IPC分类号： D05B55/02 , D05B55/10
摘要： A sewing machine needle is attached firmly and easily, and is fixed and exchanged. A needle clamp 5 for clamping a sewing machine needle 3 has an accommodating recessed part 7 which accommodates a needle shank 15 of the sewing machine needle, a clamp lever which has a clamp arm 21 which engages to the needle shank, is freely opened and closed and is fixed to a clamp lever shaft 17 which is fitted loosely to an elongate hole which is bored at the needle clamp for the accommodating recessed part and a needle fixing spring 23 which repels elastically the clamp lever to an outer direction of a straight line which links a central point N of the needle shank and a central point of the clamp lever shaft, and the clamp arm has a force acting locking part 22 which slides on the needle shank of the sewing machine needle against elasticity of the needle fixing spring when rocking the clamp lever to a clamping direction “a” and passes a branch point position tp that the elasticity of the needle fixing spring of the straight line which links the central point of the needle shank of the sewing machine needle and the central point of the clamp lever shaft becomes maximum and holds a stable clamping state by the elasticity of the needle fixing spring.

10. 外观设计

USD955444S1 Sewing machine 有权
公开(公告)号：USD955444S1
公开(公告)日：2022-06-21
申请号：US29738623
申请日：2020-06-18
申请人： Suzuki Manufacturing, Ltd.
设计人： Shigenori Kudo

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