专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH08212899A ELECTROMAGNETIC CONTACTOR AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH08212899A
公开(公告)日：1996-08-20
申请号：JP1580595
申请日：1995-02-02
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAMATSU NAOKI , TSUTSUMI KIYOHIDE , MIZUNO YASUSHI , ICHIHARA MASAHIRO
IPC分类号： H01H49/00 , H01H50/20 , H01H50/30 , H01H50/54 , H01H51/06
摘要： PURPOSE: To provide an electromagnetic contactor in which no trouble is caused in the operation of an auxiliary contact shoe even when the contact of a main contact shoe is fused by the interruption of an abnormal current. CONSTITUTION: In this electromagnetic contactor, a movable part energized by a spring force is operated to open and close second movable contacts 9a, 9b, 10a, 10b and second fixed contacts 12a. 12b, 13a, 13b so as to be mutually reciprocal to first movable contacts 4a-4c and first fixed contacts 8a-8c. The distance between the second movable contacts 9a, 9b, 10a, 10b and the second fixed contacts 12a, 12b, 13a, 13b in the opened state is set to a distance such that the second movable contacts 9a, 9b, 10a, 10b are never closed to the second fixed contacts 12a, 12b, 13a, 13b even when a pair of the first movable contacts 4a-4c and the first fixed contacts 8a-8c are closed, the movable part is inclined with the closed position as a supporting point, and the second movable contacts 9a, 9b, 10a, 10b are moved by this inclination, and the compression of contact springs 11a, 11b is set larger than the repelling quantity of the movable part by the opening and closing operation.

2. 发明专利

JPH0654975A HORIZONTAL SHUTTLE FOR SEWING MACHINE 失效
公开(公告)号：JPH0654975A
公开(公告)日：1994-03-01
申请号：JP20909192
申请日：1992-08-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAMATSU NAOKI
IPC分类号： D05B57/14 , D05B57/04
摘要： PURPOSE:To provide the horizontal shuttle of a sewing machine requiring no opener. CONSTITUTION:A horizontal shuttle is provided with an outer shuttle having a tip and rotatively driven in the preset direction and an inner shuttle 60 storing a bobbin 10 wound with a bobbin thread, relatively movably coupled with the outer shuttle 2, and having an inner shuttle stop 3 rockably coupled at the preset angle between a pair of stoppers 9a, 9b formed on a needle plate 8 and blocking the co-rotation with the outer shuttle 2. The inner shuttle 60 is provided with a needle thread pad 61 temporarily hooking a needle thread 50 near the inner shuttle stop 3 on the rotation direction side of the co-rotation with the outer shuttle 2 so that the inner shuttle 60 is rocked in the opposite direction to the rotation direction of the outer shuttle 2 by the tension of the needle thread 50 when the ring of the needle thread 50 captured by the tip passes through the inner shuttle 60. No opener mechanism is required, and the shock sound can be reduced.

3. 发明专利

JPH02109592A NEEDLE BAR DEVICE FOR SEWING MACHINE 失效
公开(公告)号：JPH02109592A
公开(公告)日：1990-04-23
申请号：JP26226988
申请日：1988-10-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAMATSU NAOKI
IPC分类号： D05B55/00
摘要： PURPOSE:To prevent the problem of oil leakage by forming a needle bar of an aluminum alloy as its base material, forming a hard alumite film on the surface of the base material, further impregnating tetrafluoroplastic or molybde num bisulfide therewith, and constituting the sliding bearings of the needle bar of a polyimide or polyimideamide resin material. CONSTITUTION:The needle bar 6 is made of the aluminum alloy for the purpose of reducing the weight thereof, is further impregnated with the tetrafluoroplastic or molybdenum bisulfide on the surface and is subjected to an alumite treatment in order to lower the coefft. of friction. The sliding bearings 19, 20 are made of the polyimide or polyimideamide resin material. The needle bar 6 is itself is formed light and slippery in such a manner, by which the PV value of the bearing sliding parts is lowered. This needle bar is combined with the sliding bearings 19, 20 consisting of the high-PV value having a good fitting property and, therefore, the need for supplying a lubricating oil to the needle bar 6 and the sliding parts of the sliding bearings 19, 20 is eliminated. The speed of the sewing machine is increased and the staining of materials to be sewn by the lubricating oil is prevented.

4. 发明专利

JPS6437995A HORIZONTAL HOOK OF SEWING MACHINE 失效
公开(公告)号：JPS6437995A
公开(公告)日：1989-02-08
申请号：JP19512387
申请日：1987-08-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAMATSU NAOKI
IPC分类号： D05B57/14
摘要： PURPOSE: To provide a horizontally rotating shuttle for a sewing machine capable of eliminating an opener mechanism and reducing noise by providing an inner shuttle with a bobbin thread delivery port in the range of

5. 发明专利

JPS5643988A CUTTER FOR COTTON OF SEWING MACHINE 失效
公开(公告)号：JPS5643988A
公开(公告)日：1981-04-22
申请号：JP11768679
申请日：1979-09-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAMATSU NAOKI , UCHIDA RIYOUHEI , KATOU KIYOTAKA
IPC分类号： D05B65/02

6. 发明专利

JPS5613978A DEVICE FOR SNAPPING COTTON OF SEWING MACHINE 失效
公开(公告)号：JPS5613978A
公开(公告)日：1981-02-10
申请号：JP9023379
申请日：1979-07-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAMATSU NAOKI , HORIMOTO KOUICHI
IPC分类号： D05B65/02 , D05B65/00

7. 发明专利

JPS55116385A PRESSSDOWN AND LIFTING DEVICE OF SEWING MACHINE 失效
公开(公告)号：JPS55116385A
公开(公告)日：1980-09-06
申请号：JP2294679
申请日：1979-02-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAMATSU NAOKI , YOSHIMOTO TSUKASA
IPC分类号： D05B29/02 , D05B47/02

8. 发明专利

JPH0523160B2 失效
公开(公告)号：JPH0523160B2
公开(公告)日：1993-03-31
申请号：JP19512387
申请日：1987-08-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAMATSU NAOKI
IPC分类号： D05B57/14

9. 发明专利

JPS641156B2 失效
公开(公告)号：JPS641156B2
公开(公告)日：1989-01-10
申请号：JP2294679
申请日：1979-02-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： MURAMATSU NAOKI , YOSHIMOTO TSUKASA
IPC分类号： D05B29/02 , D05B47/02

10. 发明专利

JPS618716B2 JPS618716B2 - 失效
公开(公告)号：JPS618716B2
公开(公告)日：1986-03-17
申请号：JP11768679
申请日：1979-09-13
申请人： Mitsubishi Electric Corp
发明人： MURAMATSU NAOKI , UCHIDA RYOHEI , KATO KYOTAKA
IPC分类号： D05B65/02

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式