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1. 发明专利

JP2005000995A Electromagnetic driving type die-casting pressure reducing valve and its driving method, and die-casting apparatus 有权
标题翻译：电磁驱动型压铸减压阀及其驱动方法及其制造方法
公开(公告)号：JP2005000995A
公开(公告)日：2005-01-06
申请号：JP2004011517
申请日：2004-01-20
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： UEBAYASHI HIDESATO , OIKAWA KEIICHI , MORIMOTO HAJIME , DEO TAKASHI , SAKURAGI TAKESHI
IPC分类号： F16K31/06 , B22D17/14 , B22D17/22 , B22D17/32 , G05D16/20
CPC分类号： B22D17/145
摘要： PROBLEM TO BE SOLVED: To provide an electromagnetic driving type die-casting pressure reducing valve and a die-casting apparatus with which bound is not generated in the case of closing the pressure reducing valve and further, even in the case of generating trouble such as intrusion of molten metal, the maintenance time and the repairing cost can be reduced to the minimum.
SOLUTION: The electromagnetic driving type die-casting pressure reducing valve 15 is arranged in a driving block 16 and provided with a driving shaft 19 driven with electromagnetic power from solenoids 18a, 18b and a valve shaft 22 arranged in a valve block 17 as the other shaft to the driving shaft 19 and provided with a valve body 23 at the one side of the shaft end part. Further, in the valve shaft 22, a closing spring 25 for energizing the valve body 23 in the closing direction is cooperatively arranged, and in the driving shaft 19, an opening spring 26 for energizing the valve body 23 in the opening direction is cooperatively arranged. Furthermore, the valve block 17 is exchangeably set.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电磁驱动型压铸减压阀和在关闭减压阀的情况下不产生压铸装置，并且即使在产生诸如熔融金属入侵等故障，维护时间和修理成本可以降至最低。解决方案：电磁驱动型压铸减压阀15布置在驱动块16中，并且设置有驱动轴19，该驱动轴19由电磁线圈18a，18b的电磁力驱动，以及设置在阀块17中的阀轴22 作为驱动轴19的另一个轴，并且在轴端部的一侧设置有阀体23。此外，在阀轴22上配置有用于使阀体23向关闭方向通电的闭合弹簧25，在驱动轴19上配置有用于使阀体23向打开方向通电的开闭弹簧26 。此外，阀块17可更换地设定。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2006102806A Shifting core for metallic mold 审中-公开
标题翻译：金属模具更换芯
公开(公告)号：JP2006102806A
公开(公告)日：2006-04-20
申请号：JP2004296884
申请日：2004-10-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SUKESADA HIDEAKI , OIKAWA KEIICHI
IPC分类号： B22C9/00 , B22C9/06 , B22C9/10 , B22D17/22
摘要： PROBLEM TO BE SOLVED: To provide the structure of a shifting core with which the shifting core is dividedly constituted, and further, the gas exhausting in a cavity is performed by passing through a gas passage communicated with the inner and the outer parts of the cavity, and the speedy fill-up of molten metal and the prevention of mixing of cellular gas into a product can be attained. SOLUTION: The shifting core 15 fitted to a metallic mold so as to be freely advanced/retreated into the cavity 16 for demarcating the cavity 16 together with the metallic mold, is constituted with an insert part 19 for shaping the product by bringing the shifting core into contact with the molten metal and a holder part 20 for supplying this insert part 19. Then, the insert part 19 is dividedly constituted of a fixed insert 19A for fixing the relative position to the holder part 20 and a movable insert 19B movable in the relative position to the holder part 20, and a gas passage for communicating the inner and the outer parts of the cavity 16 is formed in the inner part of the shifting core 15. The gas passage is formed by communicating a gap between the fixed core 19A and the movable core 19B, and the inner part of the fixed core 19A and the inner part of the holder part 20. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供变速铁芯的分离构造的变速铁芯的结构，并且进一步地，通过与内部和外部连通的气体通道在空腔中排气的空腔，并且可以快速填充熔融金属和防止细胞气体混入产品中。解决方案：安装到金属模具上以便自由前进/后退到空腔16中的移动芯15与金属模具一起用于将空腔16与金属模具分界，由插入部分19构成，用于通过带入移动芯与熔融金属接触，以及用于供给该插入部19的保持部20。然后，插入部19由用于固定与保持部20相对的位置的固定插入件19A和可动插入件19B 在相对位置上可移动到保持器部分20，并且在变速芯15的内部形成有用于连通空腔16的内部和外部的气体通道。气体通道是通过使固定芯19A和可动芯19B，以及固定芯19A的内部和保持架部20的内部。（C）2006年，JPO＆NCIPI

3. 发明专利

JPS62187544A METHOD FOR HOUSING CORE INTO METALLIC MOLD FOR CASTING 失效
公开(公告)号：JPS62187544A
公开(公告)日：1987-08-15
申请号：JP2863686
申请日：1986-02-12
申请人： TOYOTA MOTOR CORP
发明人： OIKAWA KEIICHI
IPC分类号： B22C9/10
摘要： PURPOSE:To maintain the dimensional accuracy of a core formed with notches in a core print part and to eliminate the generation of flash as well as to improve productivity by imposing the above-mentioned core on a lower mold, mating an upper mold with the core print part deformed by the heat of the metallic mold and dividing the core to the plural cores from the notches thereby decreasing the rate of deformation. CONSTITUTION:The core 14 supported to the core print part 18 having the notches 12 is imposed on the lower mold 15 based on a projection 19 thereof. The mold 15 is kept heated during a casting operation stage and the core print part 18 is deformed and warped by the heat thereof. The upper mold 16 together with a horizontal core 17 is then mated with the mold 15 and when the molds are closed, the core print part 19 is pressed by the top surface of the space part 21 of the core 17 and therefore, the deformed parts are corrected and bending stresses are concentrated to the notches 12. Cracks are, therefore, generated in the notches 12 and the core print part 18 is broken from the notches 12. The thermal deformation is thus decreased in the individual core print parts 18 and since the clearance S' in the space part 21 for housing the core print parts 18 is small, the flashing of the product is prevented.

4. 发明专利

JPH10286665A METHOD FOR DISINTEGRATING SAND CORE 失效
公开(公告)号：JPH10286665A
公开(公告)日：1998-10-27
申请号：JP9685897
申请日：1997-04-15
申请人： TOYOTA MOTOR CORP
发明人： OIKAWA KEIICHI
IPC分类号： B22D29/00
摘要： PROBLEM TO BE SOLVED: To promote the disintegration of a hollow sand core in the inner part of a cast product and to disintegrate a sand core in a short time by inserting metallic pieces into the hollow part of the sand core, vibrating the metallic pieces in the hollow part of the sand core and disintegrating the sand core. SOLUTION: The metallic pieces 6 inserted into the hollow part 3 of the sand core 2 is vibrated by resonating the vibration of the cast product 1 generated by hitting a feeder head part 4 of the cast product 1 with a hitting device 5. The metallic pieces 6 inserted into the hollow part 3 of the sand core 2 is resonated to the vibration of the cast product 1 at the time of hitting the feeder head part 4 of the cast product 1 and mutually collided and scattered in the hollow part 3 and collided to the sand core 2, and the sand core 2 is perfectly disintegrated. Since the feeder head 4 is hit, additional hitting part is unnecessary. Further, since the cast product is not directly hit, but the metallic pieces 6 are vibrated by hitting through the feeder head 4, the development of the crack in the cast product 1 is prevented.

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