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1. 发明授权

US5113926A Production process for a body frame and apparatus thereof 失效
标题翻译：身体框架的生产工艺及其装置
公开(公告)号：US5113926A
公开(公告)日：1992-05-19
申请号：US609698
申请日：1990-11-05
申请人： Yoshikazu Kanzawa , Yasushi Fujikake , Osami Ito , Shuho Ito , Hironobu Oikawa , Makoto Otsubo , Iwao Morikawa , Yuichi Shiratori , Kiyoshi Tsukada
发明人： Yoshikazu Kanzawa , Yasushi Fujikake , Osami Ito , Shuho Ito , Hironobu Oikawa , Makoto Otsubo , Iwao Morikawa , Yuichi Shiratori , Kiyoshi Tsukada
IPC分类号： B62K19/12
CPC分类号： B62K19/12
摘要： A body frame for a motor bicycle includes a main frame, a head tube provided at a front end of the main frame and down tubes extending rearward from the main frame. The main frame, head tube and down tubes are cast with a light alloy into an integral form of a hollow and thin-wall structure. A production process of the body frame, wherein an integrally-formed core, which is formed into a shape similar to that of the body frame, is hollow and has good permeability. A molten metal is charged into the mold and a vacuum is applied to the interior of the core. The molten metal is charged into a cavity defined between the core and the molding surface of the mold by a low-pressure casting method, and the molten metal is solidified so as to cast the body frame, and a production apparatus of the body frame includes a liftable cope fitted to a vertical casting machine, a fixed drag, and slidable molds disposed in combination with the cope and being capable of horizontally sliding in a state that the cope is released from the drag. A body frame having both properties of light weight and high stiffness, and a production process and apparatus thereof is provided wherein casting defects are obviated a high-precision cast article, are provided.

2. 发明授权

US5022456A Body frame, and production process and apparatus thereof 失效
标题翻译：车体框架及其制造方法及装置
公开(公告)号：US5022456A
公开(公告)日：1991-06-11
申请号：US497890
申请日：1990-03-23
申请人： Yoshikazu Kanzawa , Yasushi Fujikake , Osami Ito , Shuho Ito , Hironobu Oikawa , Makoto Otsubo , Iwao Morikawa , Yuichi Shiratori , Kiyoshi Tsukada
发明人： Yoshikazu Kanzawa , Yasushi Fujikake , Osami Ito , Shuho Ito , Hironobu Oikawa , Makoto Otsubo , Iwao Morikawa , Yuichi Shiratori , Kiyoshi Tsukada
IPC分类号： B62K19/12
CPC分类号： B62K19/12
摘要： A body frame for a motor bicycle includes a main frame, a head tube provided at a front end of the main frame and down tubes extending rearward from the main frame. The main frame, head tube and down tubes are cast with a light alloy into an integral form of a hollow and thin-wall structure. A production process of the body frame, wherein an integrally-formed core, which is formed into a shape similar to that of the body frame, is hollow and has good permability. A molten metal is charged into the mold and a vacuum is applied to the interior of the core. The molten metal is charged into a cavity defined between the core and the molding surface of the mold by a low-pressure casting method, and the molten metal is solidified so as to cast the body frame. A production apparatus of the body frame includes a liftable cope fitted to a vertical casting machine, a fixed drag, and slidable molds disposed in combination with the cope and being capable of horizontally sliding in a state that the cope is released from the drag. A body frame having both properties of light weight and high stiffness, and a production process and apparatus thereof is provided wherein casting defects and to provide a high-precision cast article, is provided.
摘要翻译：一种用于摩托车的车身框架包括主框架，设置在主框架前端的头管和从主框架向后延伸的下拉管。主框架，头管和下管以轻合金铸造成中空和薄壁结构的整体形式。主体框架的制造方法，其中形成为与主体框架类似的形状的整体形成的芯部是中空的并且具有良好的可容许性。将熔融金属装入模具中，并将真空施加到芯部的内部。将熔融金属通过低压铸造法加入到芯体和模具的成形表面之间的空腔中，并使熔融金属固化，从而铸造主体框架。主体框架的制造装置包括安装在垂直铸造机上的可升降的上座板，固定的拖曳和可滑动的模具，与所述上座组合配置，并且能够在所述上钩从所述拖曳中释放的状态下水平滑动。提供了具有轻质量和高刚度的两种特性的车体框架及其制造方法和装置，其中提供铸造缺陷并提供高精度铸造件。

3. 发明授权

US5683730A Breathing apparatus of a mold 失效
标题翻译：模具的呼吸装置
公开(公告)号：US5683730A
公开(公告)日：1997-11-04
申请号：US611207
申请日：1996-03-05
申请人： Tetsuya Katsumata , Koji Katagiri , Iwao Morikawa
发明人： Tetsuya Katsumata , Koji Katagiri , Iwao Morikawa
IPC分类号： B22D17/22 , B22C9/00 , B22D17/14 , B29C33/10 , B29C45/34 , B29C45/23
CPC分类号： B22D17/14 , Y10S425/812
摘要： On mating surfaces of a pair of mold members are formed a breathing groove communicating with a cavity, a detection chamber for detecting a melt pressure at an end of the breathing groove, a detour groove diverging from the detection chamber and a valve chamber communicating with a vent passage at an end of the detour groove. A valve element of a shut-off valve member is positioned in the valve chamber and retracts to a valve closing position when the shut-off valve member moves in a direction perpendicular to and separating from the mating surface. A detection pin having an end fronting toward the detection chamber and a operation pin having an end fronting toward the valve chamber and abutting against the valve element are connected through a reverse mechanism so that the pins move in opposite directions to each other. When the detection pin detects a predetermined melt pressure in the detection chamber and retracts, the operation pin is projected into the valve chamber through the reverse mechanism and pushes the shut-off valve member to bring the valve element into the valve closing position.
摘要翻译：在一对模具构件的配合表面上形成有与空腔连通的呼吸槽，用于检测呼吸槽端部处的熔体压力的检测室，从检测室发散的迂回槽和与腔室连通的阀室在迂回槽末端的通气通道。截止阀构件的阀元件位于阀室中并且当截止阀构件沿与垂直于配合表面并与其分离的方向移动时缩回到关闭位置。具有朝向检测室的前端的检测销和具有朝向阀室的前端朝向阀元件抵靠的端部的操作销通过反向机构连接，使得销以相反的方向彼此移动。当检测针检测到检测室中的预定熔体压力并缩回时，操作销通过反向机构突出到阀室中，并推动截止阀构件以使阀元件进入阀关闭位置。

4. 外观设计

USD278976S Can 失效
公开(公告)号：USD278976S
公开(公告)日：1985-05-28
申请号：US432100
申请日：1982-09-29
申请人： Iwao Morikawa
设计人： Iwao Morikawa

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