IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0906137
(2001-07-17)
|
우선권정보 |
JP-0019304 (1999-01-28); JP-0068270 (1999-03-15); JP-0093020 (1999-03-31); JP-0154498 (1999-06-02); JP-0201596 (1999-07-15); JP-0251086 (1999-09-06) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Tokyo Parts Industrial Co., Ltd.
|
대리인 / 주소 |
Leydig, Voit & Mayer, Ltd.
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
8 |
초록
▼
An eccentric rotor includes an eccentric printed wiring commutator device having first and second surfaces, an expanded fan shape when viewed in a plane, a central hole for shaft installation, and a plurality of segment patterns at a periphery of the first surface; a wound, non-molded air-core armat
An eccentric rotor includes an eccentric printed wiring commutator device having first and second surfaces, an expanded fan shape when viewed in a plane, a central hole for shaft installation, and a plurality of segment patterns at a periphery of the first surface; a wound, non-molded air-core armature coil incorporated in an air-core armature coil position determination guide protruding from and eccentric at the second surface of the printed wiring commutator device; an end connection portion located at an outer circumferential portion of the printed wiring commutator device for latching an end portion of the wound armature coil within a range not deviating from a turning circumference and simultaneous electrical connection with the segment patterns is possible, and not overlapping the wound armature coil when viewed in a plane; a resin bearing holder inserted in the shaft installation hole with a first part protruding toward the segment pattern and, simultaneously, a second part extending toward the second surface of the printed wiring commutator device; and a resin eccentric weight having a density exceeding 3 installed at a fan-like arc-shaped portion of the printed wiring commutator device. A vibrator motor includes the eccentric rotor, a housing accommodating the eccentric rotor, and a magnet for applying a magnetic force to the eccentric rotor.
대표청구항
▼
An eccentric rotor includes an eccentric printed wiring commutator device having first and second surfaces, an expanded fan shape when viewed in a plane, a central hole for shaft installation, and a plurality of segment patterns at a periphery of the first surface; a wound, non-molded air-core armat
An eccentric rotor includes an eccentric printed wiring commutator device having first and second surfaces, an expanded fan shape when viewed in a plane, a central hole for shaft installation, and a plurality of segment patterns at a periphery of the first surface; a wound, non-molded air-core armature coil incorporated in an air-core armature coil position determination guide protruding from and eccentric at the second surface of the printed wiring commutator device; an end connection portion located at an outer circumferential portion of the printed wiring commutator device for latching an end portion of the wound armature coil within a range not deviating from a turning circumference and simultaneous electrical connection with the segment patterns is possible, and not overlapping the wound armature coil when viewed in a plane; a resin bearing holder inserted in the shaft installation hole with a first part protruding toward the segment pattern and, simultaneously, a second part extending toward the second surface of the printed wiring commutator device; and a resin eccentric weight having a density exceeding 3 installed at a fan-like arc-shaped portion of the printed wiring commutator device. A vibrator motor includes the eccentric rotor, a housing accommodating the eccentric rotor, and a magnet for applying a magnetic force to the eccentric rotor. (second stroke), all of the ports are closed (covered) for a time and during this period, the gas-air mixture is compressed, so that a new cycle can begin. The crankcase scavenged two stroke engine has no scavenging fan. Instead, the crankcase is hermetically sealed so that it can function as a pump in conjunction with the piston. When the piston ascends, a partial vacuum is produced in the crankcase, until the lower edge of the piston releases the inlet port and thus, opens the way to the fresh gas-air mixture into the crankcase. When the piston descends, the mixture in the crankcase is compressed a little so that, as soon as the top of the piston releases the transfer port and overflow duct (connecting the crankcase to the cylinder), it can enter the cylinder. Meanwhile what happens above to the piston is the same as in the fan-scavenged engine. In the crankcase scavenged two stroke engine, the fan adds to the costs. However as the overflow duct between the cylinder and the crankcase can be provided with forced-oil lubrication without involving a risk that the oil in the crankcase can find its way into the cylinder. In the less expensive crankcase scavenged engine the lubricating oil is mixed with the gasoline or is, alternatively, supplied to the points of lubrication drop-wise by small lubricating oil pumps. The oil which enters the crankcase is liable to be carried through the overflow duct and transfer port into the cylinder, whence it passes through the exhaust port and into the exhaust system where it may manifest itself as blue smoke in the exhaust.
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