[특허]Powered ratchet wrench

Powered ratchet wrench 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B25B-013/00 B25B-021/00 B25B-013/46
출원번호	US-0355179 (2012-01-20)
등록번호	US-9120213 (2015-09-01)
발명자 / 주소	Elger, William
출원인 / 주소	Milwaukee Electric Tool Corporation
대리인 / 주소	Michael Best & Friedrich LLP
인용정보	피인용 횟수 : 0 인용 특허 : 83

초록 ▼

A power tool includes a motor having a motor drive shaft, a drive assembly coupled to the motor drive shaft and driven by the motor, an output assembly coupled to the drive assembly and having an output member, and a first housing that houses at least a portion of the motor and at least partially defines an outer surface of the power tool. The first housing is formed from steel for reducing flux losses of the motor. The power tool also includes a second housing disposed around an outer surface of the first housing. The second housing is formed from plastic and includes a grip portion.

대표청구항 ▼

1. A power tool comprising: a motor having a motor drive shaft;a drive assembly coupled to the motor drive shaft and driven by the motor;an output assembly coupled to the drive assembly and having an output member;a housing that houses at least a portion of the motor and at least partially defines an outer surface of the power tool, the housing formed from steel for reducing flux losses of the motor; anda main housing at least partially defining another outer surface of the power tool, wherein the main housing is disposed around an outer surface of a portion of the housing that houses the at least a portion of the motor. 2. The power tool of claim 1 wherein the portion is a substantially cylindrical portion. 3. The power tool of claim 2 wherein the housing includes a shoulder portion adjacent the substantially cylindrical portion, wherein the shoulder portion at least partially defines the outer surface of the power tool. 4. The power tool of claim 3 wherein the shoulder portion houses the drive assembly. 5. The power tool of claim 4 wherein the housing further includes a head portion that receives the output assembly. 6. The power tool of claim 1 wherein the main housing includes a grip portion. 7. The power tool of claim 2 wherein the main housing is disposed about an outer circumference of the substantially cylindrical portion of the housing. 8. The power tool of claim 1 wherein the portion is a substantially cylindrical portion, wherein the housing further comprises: a neck portion at least partially housing the drive assembly; anda head portion at least partially receiving the output assembly;wherein the substantially cylindrical portion, the neck portion, and the head portion are formed as a single piece. 9. The power tool of claim 8 wherein the neck portion is substantially cylindrical. 10. The power tool of claim 1 wherein the housing includes nitro-carburized steel. 11. The power tool of claim 1 wherein the output assembly further comprises: a yoke coupled with an eccentric member for converting eccentric rotational motion of the eccentric member into oscillating rotational motion of the yoke;wherein the output member is coupled to the yoke; anda ratchet mechanism disposed between the yoke and the output member for coupling the yoke to the output member in a first rotational direction and ratcheting the yoke with respect to the output member in a second rotational direction. 12. A power tool comprising: a motor having a motor drive shaft;a drive assembly coupled to the motor drive shaft and driven by the motor;an output assembly coupled to the drive assembly and having an output member;a head housing including a portion that houses at least a portion of the motor, a shoulder portion that houses the drive assembly and a head portion that at least partially receives the output assembly, wherein the head housing is formed as one piece, and wherein the head housing is formed from a metal; anda main housing disposed around an outer surface of the portion of the housing that houses at least a portion of the motor, wherein the main housing is formed from plastic and includes a grip portion. 13. The power tool of claim 12 wherein at least one of the shoulder portion and the head portion at least partially defines an outer surface of the power tool. 14. The power tool of claim 12 wherein the motor is an electric motor and wherein the head housing is formed from steel for reducing flux losses of the motor. 15. The power tool of claim 12 wherein the output assembly is a ratchet wrench output assembly including a yoke, and wherein the head portion includes a first ear and a second ear that receive the yoke therebetween. 16. The power tool of claim 12 wherein substantially cylindrical portion is substantially cylindrical, and wherein the main housing includes two clamshell halves secured around an outer circumference of the substantially cylindrical portion and substantially enclosing the substantially cylindrical portion. 17. A power tool comprising: a motor having a motor drive shaft;a drive assembly coupled to the motor drive shaft and driven by the motor, the drive assembly including an eccentric member;an output assembly coupled to the drive assembly, the output assembly including: a yoke coupled with the eccentric member for converting eccentric rotational motion of the eccentric member into oscillating rotational motion of the yoke;an output member coupled to the yoke; anda ratchet mechanism disposed between the yoke and the output member for coupling the yoke to the output member in a first rotational direction and ratcheting the yoke with respect to the output member in a second rotational direction;a housing having a portion for at least partially enclosing the motor and a head portion for at least partially receiving the yoke, wherein the portion for at least partially enclosing the motor and the head portion for at least partially receiving the yoke are formed as one piece; anda main housing having a grip portion, wherein the portion for at least partially enclosing the motor is substantially enclosed by the main housing. 18. The power tool of claim 17 wherein the motor is an electric motor, and wherein the housing is formed from steel for reducing flux losses of the motor. 19. The power tool of claim 18 wherein the housing includes nitro-carburized steel. 20. The power tool of claim 17 wherein the head portion of the housing at least partially defines an outer surface of the power tool. 21. The power tool of claim 17 wherein the portion is for at least partially receiving the motor is substantially cylindrical, and wherein the head portion includes a first ear and a second ear for receiving the yoke therebetween.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Powered ratchet wrench 원문보기

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