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公开(公告)号:US11639570B2
公开(公告)日:2023-05-02
申请号:US17055374
申请日:2019-06-13
发明人: Toyohiro Azuma , Takuya Sawada , Koji Maeda
IPC分类号: D05B87/02
摘要: [Purpose] To obtain a sewing machine comprising a device with which it is possible to easily perform a threading operation in which a needle thread is inserted into the needle hole of the sewing machine needle, wherein the sewing machine comprises a threading device configured so that the needle thread does not drop onto or coil around an operation part (operation part) of the operation lever of the threading device when a thread-hooking operation is completed before insertion of the needle thread. [Configuration] The present invention comprises: a needle bar 52; a threading shaft 53; a thread-holding tool 71; a threading tool 72 provided at the bottom end of the threading shaft 53; an operation lever 4 that has an operation part 41 and moves the threading shaft 53 up and down and rotates the threading shaft in the circumferential direction; and a cutting tool 93 for the needle thread n. The present invention is configured such that a needle thread guide member A, in which an inclined part 1 is formed that guides the needle thread n from the thread-holding tool 71 to the cutting tool 93, is provided between the thread-holding tool 71 and the cutting tool 93, and the inclined part of the needle thread guide member A guides the needle thread n that has been cut by the cutting tool out of the operation range of the operation lever 4.
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2.
公开(公告)号:US10787759B2
公开(公告)日:2020-09-29
申请号:US16296240
申请日:2019-03-08
发明人: Saki Ishikawa , Koji Maeda
摘要: In order to improve detachability of a needle plate, a needle plate detachable mechanism has a needle plate which is provided on a bed part of the sewing machine and made of a magnetic body; a magnet which is provided below the needle plate for fixing the needle plate by magnetic force; and a magnetic force changing mechanism which is connected with the magnet for changing the magnetic force acting on the needle plate by relatively moving the magnet with respect to the needle plate.
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3.
公开(公告)号:US20190352826A1
公开(公告)日:2019-11-21
申请号:US16296239
申请日:2019-03-08
发明人: Saki Ishikawa , Koji Maeda
摘要: In order to prevent a replacement of the needle plate in the situation not suitable for replacing the needle plate, a needle plate detachable mechanism has a needle plate fixing unit capable of being switched between a fixed state where a needle plate is fixed to a sewing machine body and an unfixed state where the fixed state is released; and a switching mechanism which is connected with the needle plate fixing unit for switching the needle plate fixing unit between the fixed state and the unfixed state, wherein the needle plate fixing unit is prevented from being switched when the needle is positioned below an upper surface of the needle plate or when the sewing machine motor is driven.
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公开(公告)号:US09395530B2
公开(公告)日:2016-07-19
申请号:US14460246
申请日:2014-08-14
发明人: Ushio Yokoyama , Yosuke Iizuka , Koji Maeda
IPC分类号: G02B3/00 , G02B27/02 , D05B3/22 , D05C3/02 , G02B25/00 , D05B3/02 , D05B79/00 , G02B7/02 , D05B3/24
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:US20210269953A1
公开(公告)日:2021-09-02
申请号:US17111241
申请日:2020-12-03
发明人: Tatsuo Takei , Yoshitaka Bamba , Koji Maeda
摘要: A sewing control device includes in a sewing machine having upper feed function a control device which controls feed of an object to be sewn. A lower feed amount setting motor sets a feed amount of a lower feed dog and an upper feed amount change motor changes a feed amount of an upper feed dog. A feed execution range, in which the feed of the object to be sewn is executed by an appropriate feed amount while the object to be sewn is sandwiched between the lower feed dog and the upper feed dog, and a feed non-execution range, in which the feed of the object to be sewn is not executed in a state in which the feed dogs do not act on the object to be sewn, are present. The feed amount of the upper feed dog can be changed only in the feed non-execution range during sewing.
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公开(公告)号:US09982376B2
公开(公告)日:2018-05-29
申请号:US15215480
申请日:2016-07-20
发明人: Yosuke Iizuka , Koji Maeda , Satoshi Maruo
摘要: A bobbin holder that grasps a holder body and a flange of a bobbin that winds a thread n around the holder body, the holder including: an opening formed in an upper surface of the holder body; a thread holding portion that holds a thread n and is arranged in the opening so as to protrude from a center of the holder body toward an outer circumference of the holder body; and a cutting blade that cuts the thread held by the thread holding portion, the blade being disposed in one of regions inside the opening that is partitioned by the thread holding portion, wherein the cutting blade is disposed on a thread path of the thread n being pulled after the thread n, which is wound around the bobbin grasped by a grasping portion and is pulled from the other region inside the partitioned opening, is held by the thread holding portion.
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公开(公告)号:US09828711B2
公开(公告)日:2017-11-28
申请号:US14666651
申请日:2015-03-24
发明人: Koji Maeda , Koichi Honda , Yoshitaka Bamba
CPC分类号: D05B73/12
摘要: A needle plate replacement device including positioning mechanisms provided in an opposing manner in the needle plate and the bed portion, the positioning mechanisms positioning the needle plate to an attaching position in the bed portion; a lock mechanism including a locking member provided in the bed portion and a locked member provided in the needle plate, in which by mounting the needle plate on the attaching position in the bed portion, the locking member and the locked member is locked to each other thus maintaining a locked state; a push-up mechanism provided in the bed portion, the push-up mechanism pushing up the needle plate mounted on the bed portion towards a dismount position above the bed portion; and a release mechanism cancelling the locked state between the locking member and the locked member of the lock mechanism by being interlocked with an operation of the push-up mechanism.
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公开(公告)号:US09359703B2
公开(公告)日:2016-06-07
申请号:US14161571
申请日:2014-01-22
发明人: Tustomu Takagi , Koji Maeda , Takuya Sawada
CPC分类号: D05B65/02 , D05B63/00 , D05B65/003 , D05B65/06 , D05B73/12
摘要: The sewing machine has: a base plate that has a guide slit for guiding a bobbin thread that is set on the bottom face side of the throat plate 1; and a bobbin thread guide member that has a guide groove for guiding the bobbin thread supplied from a bobbin and includes a cutting blade provide at the end position of the guide groove to cut the bobbin thread guided along the guide groove to an appropriate length. The bobbin thread guide member is secured to the base plate and has a holding member, which holds the end of the bobbin thread, in the guide groove, so as to maintain the state when the bobbin thread was cut.
摘要翻译: 缝纫机具有:底板,其具有用于引导设置在喉板1的底面侧的底线的引导狭缝; 以及底线导引构件,其具有用于引导从筒管供给的底线的引导槽,并且包括切割刀片,其设置在引导槽的端部位置,以将沿着引导槽引导的底线切割成适当的长度。 底线引导构件固定到基板上,并且具有将底线的端部保持在引导槽中的保持构件,以便保持底线被切断时的状态。
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公开(公告)号:US20160040342A1
公开(公告)日:2016-02-11
申请号:US14666651
申请日:2015-03-24
发明人: Koji Maeda , Koichi Honda , Yoshitaka Bamba
IPC分类号: D05B73/12
CPC分类号: D05B73/12
摘要: A needle plate replacement device including positioning mechanisms provided in an opposing manner in the needle plate and the bed portion, the positioning mechanisms positioning the needle plate to an attaching position in the bed portion; a lock mechanism including a locking member provided in the bed portion and a locked member provided in the needle plate, in which by mounting the needle plate on the attaching position in the bed portion, the locking member and the locked member is locked to each other thus maintaining a locked state; a push-up mechanism provided in the bed portion, the push-up mechanism pushing up the needle plate mounted on the bed portion towards a dismount position above the bed portion; and a release mechanism cancelling the locked state between the locking member and the locked member of the lock mechanism by being interlocked with an operation of the push-up mechanism.
摘要翻译: 一种针板更换装置,包括以相对方式设置在所述针板和所述床部分中的定位机构,所述定位机构将所述针板定位在所述床部分中的安装位置; 锁定机构,其包括设置在床部分中的锁定构件和设置在针板中的锁定构件,其中通过将针板安装在床部分中的安装位置,锁定构件和锁定构件彼此锁定 从而保持锁定状态; 上推机构设置在床部,上推机构将安装在床部上的针板推向床部上方的卸载位置; 以及释放机构,通过与上推机构的操作互锁而抵消锁定构件与锁定机构的锁定构件之间的锁定状态。
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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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