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1. 发明专利

JP2005087510A Looper driving device 审中-公开
标题翻译：循环驱动装置
公开(公告)号：JP2005087510A
公开(公告)日：2005-04-07
申请号：JP2003325802
申请日：2003-09-18
申请人： Yamato Sewing Mach Co Ltd , ヤマトミシン製造株式会社
发明人： SHIMIZU YOSHIHIDE , INOUE TADANORI , HAYASHIDA TAKAYUKI , SAKAI ITSUO
IPC分类号： D05B57/32 , D05B73/06
CPC分类号： D05B73/06 , D05B57/32
摘要： PROBLEM TO BE SOLVED: To provide a looper driving device which moves a looper smoothly by synchronizing a looper shaft with vertical movements of a needle even at a high-speed rotation of a main shaft without generating a noise and jouncing movements of the looper shaft during an operation of a sewing machine. SOLUTION: The looper driving device is equipped with the looper shaft 11, which is disposed in the direction perpendicular to the direction of the vertical movements of the needle, has the center of the shaft in the direction for feeding an article to be sewn, and is provided throughout a sewing machine bed and a cylinder bed, and the looper 13 provided at the end of the looper shaft 11 through a looper base 12, oscillates the looper shaft 11 around the center of the shaft while synchronizing the looper shaft 11 with the needle making vertical movements by the rotations of a main shaft 15, and moves back and forth in the direction of the center of the shaft. The looper shaft 11 has the single center of the shaft throughout the length, and a looper oscillating arm 20 for oscillating the looper shaft 11 and a pair of looper shaft collars 26 which keep a looper back and front arm 24 for moving the looper shaft 11 back and forth between the looper shaft collars 26 from the back and front are connected with the looper shaft 11 in the sewing machine head. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种活针驱动装置，即使在主轴的高速旋转下，使得冲针轴与针的垂直运动同步，也可以平滑地移动弯针，而不会产生噪声和振动运动缝纫机操作期间的活套轴。
解决方案：活套驱动装置配备有沿与针的垂直运动方向垂直的方向设置的打孔器轴11，轴的中心沿着将物品送入的方向为并且设置在缝纫机床和气缸床上，并且通过弯针底座12设置在打孔器轴11的端部的弯针13，使得打孔机轴11围绕轴的中心摆动，同时使活套轴该针通过主轴15的旋转而进行垂直运动，并且沿轴的中心方向前后移动。冲针轴11在整个长度上具有轴的单个中心，以及用于摆动打孔器轴11的打圈器摆动臂20和保持打针器后面的一对弯针轴环26和用于移动打孔器轴11的前臂24 来自后面和前面的弯针轴套26之间来回连接着缝纫机头中的弯针轴11。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2005040587A sewing machine 有权
标题翻译：缝纫机
公开(公告)号：JP2005040587A
公开(公告)日：2005-02-17
申请号：JP2004179680
申请日：2004-06-17
申请人： Yamato Sewing Mach Co Ltd , ヤマトミシン製造株式会社
发明人： SHIMIZU YOSHIHIDE , INOUE TADANORI
IPC分类号： D05B71/00 , D05B29/00 , D05B55/00 , F16N7/38
摘要： PROBLEM TO BE SOLVED: To provide a sewing machine capable of securely preventing a lubricating oil from leaking from a part where moving members such as a needle bar and a presser bar are inserted. SOLUTION: A through hole 32a of a needle bar bearing 32 where the needle bar 35 is inserted and a through hole 33a of a presser bar bearing 33 where the presser bar 36 is inserted are provided on a lower part 31 of an arm 26. A lubricating oil flowing space 46 under each of the bearings 32 and 33 communicates with the through holes 32a and 33a. The lubricating oil fed into the needle bar 35 and the presser bar 36 flows into the space 46 and is introduced into a lubrication feeding and recovering means 40 by a lubricating oil guide means 47 and recovered by the feeding and recovering means 40. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够可靠地防止润滑油从插入有针杆和压杆等移动部件的部位泄漏的缝纫机。解决方案：将针杆35插入的针杆轴承32的通孔32a和压杆36插入的压杆轴承33的通孔33a设置在臂的下部31上每个轴承32和33下面的润滑油流动空间46与通孔32a和33a连通。供给到针杆35和压杆36的润滑油流入空间46，并通过润滑油引导装置47被引入到润滑供给和回收装置40中，并由进给和回收装置40回收。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004313740A Sewing machine 有权
公开(公告)号：JP2004313740A
公开(公告)日：2004-11-11
申请号：JP2003281317
申请日：2003-07-28
申请人： Yamato Sewing Mach Co Ltd , ヤマトミシン製造株式会社
发明人： SHIMIZU YOSHIHIDE , KOMATSU KUNIHIKO
IPC分类号： D05B55/14
摘要： PROBLEM TO BE SOLVED: To provide a sewing machine having a nearly orthogonally projected arm to a main shaft of the sewing machine to smoothly carry out the motion of the main shaft of the sewing machine to a needle bar on the arm tip of the sewing machine while preventing generation of vibration and noise.
SOLUTION: The sewing machine has a transmission shaft 6 nearly parallel to the main shaft 5 of the machine installed under the main body 1 of the sewing machine at a height corresponding to the projecting position of the machine arm 3 in the inside upper part of the main body 1 and a needle bar driving shaft 7 almost parallel to the main shaft 5 and a transmission shaft 6 of the sewing machine on the tip of the machine arm 3. A first driving belt 60 is stretched between the main shaft 5 and the transmission shaft 6, and a second driving belt 70 is stretched between the transmission shaft 6 and the needle bar driving shaft 7 to transfer the rotation of the main shaft 5 of sewing machine to the transmission shaft 6 and the needle bar driving shaft 7 by belt transmission. The rotation of the needle bar driving shaft 7 is transmitted to the needle bar 4 via a motion conversion means 8 to move the needle bar 4 vertically.
COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2007061569A Sewing machine with thread cutter 有权
标题翻译：缝纫机与螺纹切割机
公开(公告)号：JP2007061569A
公开(公告)日：2007-03-15
申请号：JP2005280769
申请日：2005-08-29
申请人： Yamato Sewing Mach Co Ltd , ヤマトミシン製造株式会社
发明人： SHIMIZU YOSHIHIDE , KUSAZUMI KANAME
IPC分类号： D05B65/02 , D05B65/06
摘要： PROBLEM TO BE SOLVED: To reduce the number of components so that a reduction in cost, facilitation of attachment and rationalization can be attained, and handling of cloth under sewing is made easier so that workability can be improved and sewing mistake can be reduced.
SOLUTION: In a thread cutter device 18 which comprises a movable knife 15 which can swing back and forth inside a horizontal plane, a fixed knife 16 and a thread clipper plate 27 which can elastically clip an end of a thread with the movable knife 15 after cutting, a movable knife driving mechanism comprises a driving connecting linkage 26 whose end is connected with a position displaced a little from a swinging central shaft 19 of the movable knife 15 and is extended in a cylindrical bed 1 towards garment feed direction and an air cylinder 20 which has a movable rod section 21 which is fixed at a rear anchor side in the cylindrical bed 1 and connected to the other end of the driving connecting linkage 26.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了减少部件的数量，可以实现成本的降低，便于安装和合理化，并且缝制时的布料的处理变得更容易，从而可以提高加工性，并且缝制错误可以降低。解决方案：在具有可在水平面内前后摆动的可动刀15的螺纹切割装置18中，固定刀16和剪线板27可以弹性夹住线的一端与可动刀具15切割后，可动刀驱动机构包括驱动连接连杆26，其端部与从可动刀15的摆动中心轴19偏移一点的位置连接，并且在圆筒形床1中朝向衣物进给方向延伸，气缸20具有可动杆部分21，该活动杆部分21固定在圆柱形床1中的后锚固侧并连接到驱动连接连杆26的另一端。（C）2007，JPO＆INPIT

5. 发明专利

JP2005058700A Needle guard device of sewing machine 有权
标题翻译：缝纫机针脚保护装置
公开(公告)号：JP2005058700A
公开(公告)日：2005-03-10
申请号：JP2003323748
申请日：2003-08-11
申请人： Yamato Sewing Mach Co Ltd , ヤマトミシン製造株式会社
发明人： SHIMIZU YOSHIHIDE , INOUE TADANORI
IPC分类号： D05B55/06
摘要： PROBLEM TO BE SOLVED: To provide a needle guard device of a sewing machine which can prevent damage of a needle, such as breaking, by collision of the needle against a needle guide member even if the top of the needle bends largely and which keeps the needle and the needle guide member in contact with each other for a long time to ensure a catch of a needle thread loop by a looper.
SOLUTION: A needle guard member 15 is brought into contact with a needle to guide a needle 9 in the regular moving track position when the needle 9 is made to cooperate with a looper 34 to form a stitch. A needle guard swing mechanism is provided on the needle guard member 15 for causing the needle guard member 15 to swing the needle guard board 13 having the needle guard member 15 horizontally and vertically combinedly to give a horizontal movement along a sewing direction and a vertical movement.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供缝纫机的针刺保护装置，即使针的顶部在很大程度上弯曲，也可以通过针与针引导构件的碰撞来防止针的损坏，例如断裂，以及其保持针和针引导构件相互长时间接触，以确保由弯针钩住针线环。解决方案：当针9与打针器34配合以形成针迹时，针保护构件15与针接触以将针9引导到规则的运动轨迹位置。针护罩摆动机构设置在针保护构件15上，用于使针保护构件15水平和垂直地组合地摆动具有针保护构件15的针护罩板13，从而沿着缝纫方向和垂直运动。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2000140470A SEWING MACHINE AND MANUFACTURE OF SEWING MACHINE COMPONENT 失效
公开(公告)号：JP2000140470A
公开(公告)日：2000-05-23
申请号：JP24936899
申请日：1999-09-02
申请人： YAMATO SEWING MACH CO LTD , CITIZEN WATCH CO LTD
发明人： SHIMIZU YOSHIHIDE , SHINOMIYA HIDEO , ITABASHI AKITOSHI
IPC分类号： D05B55/00 , C23C14/36 , C23C16/50 , D05B57/00
摘要： PROBLEM TO BE SOLVED: To prevent the wear and burning of a sliding component and to cope with the acceleration of an operation speed by forming a coating layer with diamond-like carbon put on a sliding surface through an intermediate layer. SOLUTION: A sewing machine component 1 is a bar-shaped member composed of a metal such as chrome molybdenum steel and a heat treatment layer 10 is formed so as to increase the hardness on the surface. Also, on the surface of the heat treatment layer 10, the coating layer 12 made of the diamond-like carbon is attached through the intermediate layer 11. The intermediate layer 11 improves the attaching strength of the coating layer 12 to the heat treatment layer 10. Thus, the generation of burning in a sliding part is evaded, the durability of the sewing machine component is improved and the stable high-speed operation is made possible over the long period of time.

7. 发明专利

JP2002000981A UPPER KNIFE DEVICE FOR SEWING MACHINE 失效
公开(公告)号：JP2002000981A
公开(公告)日：2002-01-08
申请号：JP2000224600
申请日：2000-06-19
申请人： YAMATO SEWING MACH CO LTD
发明人： SHIMIZU YOSHIHIDE
IPC分类号： D05B37/06 , D05B1/20 , D05B37/04
摘要： PROBLEM TO BE SOLVED: To always exhibit sure and good cutting performance for both thick and thin clothes with one kind of device using an upper knife in a flat plate form by fully catching cutting reaction force regardless of size of the cutting reaction force with the change in the thickness of a cloth. SOLUTION: A stopper means comprising a protrusion member 21 in an eccentric pin form contacted with an upper end side 7d of an upper knife 7 is placed on the upper knife attaching face side of an upper knife holder 12 so that the upper knife 7 may be fixed and held at a predetermined position of the upper knife holder 12 by catching cutting reaction force acting on an upper knife 7 side at the time of the cutting of a cloth edge portion by pressing each other of the edges 7c and 8a of both upper and lower knives 7 and 8.

8. 发明专利

JPH0731776A LOOPER BAR OF OVERLOCK SEWING MACHINE AND UPPER LOOPER FIXING METHOD USING THIS BAR 失效
公开(公告)号：JPH0731776A
公开(公告)日：1995-02-03
申请号：JP18301193
申请日：1993-07-23
申请人： YAMATO SEWING MACH CO LTD
发明人： MATSUMOTO FUMIO , SHIMIZU YOSHIHIDE
IPC分类号： D05B57/34
摘要： PURPOSE:To provide the upper looper fixing method, by which wear resistance and sticking resistance are improved. CONSTITUTION:In the upper looper fixing method of an overlock sewing machine for installing the upper looper 6 in the tip part of a looper bar 3 which is attached pivotally to the upper looper crank and passes through a looper guide fitted to a looper guide metal, the upper looper 6 is inserted into a looper fitting and inserting hole 9 provided along the axial direction in the tip part of the looper bar 3. Subsequently, to a female screw 11 provided on the circular arc-like outside peripheral surface of the tip part of the looper bar so as to open in this looper fitting and inserting hole 9, a set screw 12 is fitted and tightened, and the tip part of the set screw 12 is pressed against the upper looper 6 and fixed. In such a way, since the upper looper operating part becomes light in weight, a load at the time of high speed rotation is decreased, and wear resistance and sticking resistance on the sliding surface are improved.

9. 发明专利

JP2001000770A SEWING MACHINE WITH DUST REMOVING DEVICE 失效
公开(公告)号：JP2001000770A
公开(公告)日：2001-01-09
申请号：JP20808099
申请日：1999-06-17
申请人： YAMATO SEWING MACH CO LTD
发明人： INOUE TADANORI , SHIMIZU YOSHIHIDE
IPC分类号： D05B81/00 , D05B71/00 , D05B73/00
摘要： PROBLEM TO BE SOLVED: To maintain a hygienic environment by assuredly preventing the generation of a trouble such as a failure in sewing due to the accumulation of dust under a self-cleaning operation effectively using an air flow generated by a cooling fan provided for cooling lubricating oil and dust from being increased and scattered in the periphery above a neeldle plate. SOLUTION: An upward air guide passage 17 is provided for supplying a cooling air flow generated by a cooling fan 11 operating together with a sewing machine to an oil cooling air guide passage 13 formed below an oil receiver in the lower part of a sewing machine frame 1 and blowing off the cooling air flow passing through the oil cooling air guide passage 13 toward the needle dropping part of a needle plate 9 from the lower part of the sewing machine frame 1 to blow off the dust upward. The end opening 18a of a dust collecting air inlet pipe 18 attached to the sewing machine frame l faces a side part of the upper part of the needle plate 9.

10. 发明专利

JP2000167286A SEWING MACHINE 失效
公开(公告)号：JP2000167286A
公开(公告)日：2000-06-20
申请号：JP34913498
申请日：1998-12-08
申请人： YAMATO SEWING MACH CO LTD
发明人： SHIMIZU YOSHIHIDE
IPC分类号： D05B71/00
摘要： PROBLEM TO BE SOLVED: To capture and recover lubricating oil supplied from one side of a supporting bush for performing the lubricating action of a slide shaft on the other side of the supporting bush and to block carry-away to the other side. SOLUTION: To the lower part of the supporting bush 3b for supporting a needlebar 1 to the lower wall 22 of the head part 20 of this sewing machine, a seal holder 40 is attached so as to surround the projecting part of the needlebar 1 projected to the outer side of the head part 20. In the inside of the seal holder 40, a seal ring 41 in slidable contact with the peripheral surface of the needlebar 1 and an energizing ring 42 in elastic contact with the outer surface of the seal ring 41 are fitted. The inner surface of the seal ring 41 is pressed to the peripheral surface of the needle bar 1 by the energizing ring 42, the lubricating oil stuck to the peripheral surface of the needle bar 1 is captured to the inner surface of the seal ring 41 and the captured lubricating oil is led through an oil discharge hole 27 communicated inside the seal holder 40 and an oil discharge pipe 28 connected to the oil discharge hole 27 to an oil storage part and recovered.

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