Oppama Industry Co., Ltd

Oppama Kogyo Kabushiki Kaisha

Yoshiki Kitamura

Masao Iwata

Norio Kawai

Kiyoshige Enomoto

Shigeyuki Suzuki

Shigeru Ohtake

A rotor core, rotating in the vicinity of a generating coil, comprises a balance weight section and a pair of magnetic poles, provided on opposite sides of the balance weight sectionwith respect to a center of rotation O of the rotor coreto sandwich a magnet, and confronting through a magnetic gap G. A magnet holding sectionfor preventing the magnetflying out through the magnetic gap G due to centrifugal force, is provided integrally contiguous to each of the magnetic poles so as to connect between the two magnetic poles.

Magneto rotor

A contactless ignition system is provided with an ignition charge discharge condenser for charging an induced voltage of a generating coil, a first switching element, triggered to conduct when an induced voltage of a trigger coil reaches an initial trigger level, for supplying a voltage charged into the ignition charge discharge condenser into an ignition coil, and a trigger control condenser for charging induced voltages of the generating coil and the trigger coil, and triggering of the first switching element caused by an induced voltage of the trigger coil is inhibited by a second switching element during a specified discharge time following charging of the trigger control condenser.

Contactless ignition system for internal combustion engine

By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor, it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.

Magneto electric generator rotor and an implement for removing this rotor

A rotor core is provided with a pole piece portion holding a magnet and a balance weight portion, wherein said hub fitting hole is inserted a metal hub having a tapered axis hole and part fitting portion so as to be fixed each other, and said rotor core is coated with synthetic resins, thereby the use of metal can be limited only to parts where mechanical strength is required so that the whole rotor weight can be reduced and can be assembled easily, and be allow various parts can be fitted stably, and the degradation of magnetic properties of the magnet can be prevented.

Rotor of rotating equipment

An adhering substance peeling apparatus provided with a vertically reciprocating scraping blade at the lower end of an operating rod of a proper length so that chewing gum, dirt and other adhering substances adhering to the ground surface or the like may be peeled off while the worker is standing upright.

Growing community of inventors

Yokosuka, Japan

Yoshiki Kitamura