[특허]Portable drilling machine

NITTO KOHKI CO., LTD.

검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
검색연산자

검색도움말
검색연산자	기능	검색시 예
()	우선순위가 가장 높은 연산자	예1) (나노 (기계 \| machine))
공백	두 개의 검색어(식)을 모두 포함하고 있는 문서 검색	예1) (나노 기계) 예2) 나노 장영실
\|	두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색	예1) (줄기세포 \| 면역) 예2) 줄기세포 \| 장영실
!	NOT 이후에 있는 검색어가 포함된 문서는 제외	예1) (황금 !백금) 예2) !image
*	검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색	예) semi*
""	따옴표 내의 구문과 완전히 일치하는 문서만 검색	예) "Transform and Quantization"

과학기술 지식인프라 ScienceON

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Portable drilling machine

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02H-005/04 H02H-003/00 G05B-011/28 B23B-045/02
출원번호	US-0518593 (2009-12-24)
등록번호	US-9604284 (2017-03-28)
국제출원번호	PCT/JP2009/007180 (2009-12-24)
§371/§102 date	20120817 (20120817)
국제공개번호	WO2011/077485 (2011-06-30)
발명자 / 주소	Ohtsuka, Kenji
출원인 / 주소	NITTO KOHKI CO., LTD.
대리인 / 주소	Wenderoth, Lind & Ponack, L.L.P.
인용정보	피인용 횟수 : 0 인용 특허 : 7

초록
▼

A portable drilling machine wherein when a shorting failure occurs in a circuit part connected to a driving motor, this state is reliably detected and a false start of the motor is reliably prevented. A diving motor control circuit in the portable drilling machine includes a main control section; a triac and a relay which are connected to power supply terminals in series with the driving motor; peripheral circuits (a triac control circuit, a relay control circuit, a triac inspection and determination section, a bypass resistor, etc.) which are related to...

대표
청구항
▼

1. A portable drilling machine comprising: a drive motor for rotationally driving a cutting tool;a motor control unit for controlling actions of the drive motor;a portable main body mounted with the drive motor and the motor control unit; anda fixing unit for fixing the main body to a workpiece;the motor control unit comprising:a switching element and a relay that are connected in series with the drive motor to power-supply terminals;a first resistor connected in parallel with the relay, connected in series with the drive motor, and connected in series with the switching element to the power supply terminals;a first determining unit connected in parallel with the switching element, for determining whether the switching element has a short-circuit failure;a switching control unit that provides switching control for the switching element to control a motor current flowing through the drive motor; andan on-off control unit for controlling the relay,wherein the relay is kept off during the determining by the first determining unit, and the relay is kept on in making the drive motor take rotational actions. 2. The portable drilling machine of claim 1, wherein the motor control unit comprises:a current measuring unit that measures a current value of a current flowing through the drive motor; anda second determining unit for determining whether the relay has a short-circuit failure. 3. The portable drilling machine of claim 2, wherein in the motor control unit immediately after fixing the main body to the workpiece by the fixing unit as a result of a power switch on for checking whether the relay has short-circuit failure,the on-off control unit keeps the relay off,the switching control unit subjects the switching element to a switching control at a desired duty, andthe second determining unit compares a current measurement value acquired by the current measuring unit with a predetermined reference value to issue a determination result depending on a result of the comparison. 4. The portable drilling machine of claim 1, wherein in the motor control unit while the drive motor normally rotates in response to a predetermined switching operation,the on-off control unit keeps the relay on, andthe switching control unit subjects the switching element to a switching control at a desired duty. 5. The portable drilling machine of claim 1, wherein the drive motor is an AC motor,the power-supply terminals are connected to an AC power supply, andthe switching element is a triac. 6. The portable drilling machine of claim 1, wherein the drive motor is a DC motor,the power-supply terminals are connected to a DC power supply, andthe switching element is a transistor. 7. A portable drilling machine comprising: a rotation driving unit including a drive motor for rotationally driving a cutting tool;a feed motor for advancing or retreating the cutting tool relative to the workpiece;a motor control unit for controlling actions of the feed motor;a portable main body mounted with the rotation driving unit, the feed motor, and the motor control unit; anda fixing unit for fixing the main body to a workpiece;the motor control unit comprising:a switching element and a relay that are connected in series with the feed motor to power-supply terminals;a first resistor connected in parallel with the relay, connected in series with the feed motor, and connected in series with the switching element to the power-supply terminals;a first determining unit connected in parallel with the switching element, for determining whether the switching element has a short-circuit failure;a switching control unit that provides switching control for the switching element to control a motor current flowing through the feed motor; andan on-off control unit for controlling the relay,wherein the relay is kept off during the determining by the first determining unit, and the relay is kept on in making the feed motor take rotational actions. 8. The portable drilling machine of claim 7, wherein the motor control unit comprises:a current measuring unit that measures a current value of a current flowing through the feed motor; anda second determining unit for determining whether the relay has a short-circuit failure. 9. The portable drilling machine of claim 8, wherein in the motor control unit immediately after fixing the main body to the workpiece by the fixing unit as a result of a power switch on for checking whether the relay has short-circuit failure,the on-off control unit keeps the relay off,the switching control unit subjects the switching element to a switching control at a desired duty, andthe second determining unit compares a current measurement value acquired by the current measuring unit with a predetermined reference value to issue a determination result depending on a result of the comparison. 10. The portable drilling machine of claim 7, wherein in the motor control unit while the feed motor normally rotates in response to a predetermined switching operation,the on-off control unit keeps the relay on, andthe switching control unit subjects the switching element to a switching control at a desired duty. 11. The portable drilling machine of claim 7, wherein the feed motor is an AC motor,the power-supply terminals are connected to an AC power supply, andthe switching element is a triac. 12. The portable drilling machine of claim 7, wherein the feed motor is a DC motor,the power-supply terminals are connected to a DC power supply, andthe switching element is a transistor. 13. The portable drilling machine of claim 1, wherein in the motor control unit immediately after fixing the main body to the workpiece by the fixing unit as a result of a power switch on for checking whether the switching element has a short-circuit failure,the switching control unit keeps the switching element off,the on-off control unit keeps the relay off, andthe first determining unit issues a determination result that depends on magnitude of a voltage across terminals of the switching element. 14. The portable drilling machine of claim 13, wherein the first determining unit comprises:a light-emitting element connected in parallel with the switching element;a light-receiving element paired with the light-emitting element to make up a photo coupler; anda binary signal generation circuit connected to the light-receiving element, for generating a signal having a first logical value when the light-receiving element is inactive and for generating a signal having a second logical value when the light-receiving element is active. 15. The portable drilling machine of claim 14, comprising a second resistor connected in parallel with the switching element and in series with the light-emitting element. 16. The portable drilling machine of claim 1, wherein the fixing unit has an electromagnet integrally incorporated in the main body, the fixing unit energizing the electromagnet when a power switch goes on to electromagnetically adhere to the workpiece, the fixing unit deenergizing the electromagnet when the power switch goes off to release electromagnetic adhesion.

이 특허에 인용된 특허 (7)

IPC 상위 출원인

내보내기

상세정보
내보내기 구분	파일저장 인쇄 메일전송
구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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

과학기술 지식인프라 ScienceON

ScienceON Chatbot

연합인증

특허 상세정보

Portable drilling machine

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (7)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

연합인증

특허 상세정보

Portable drilling machine

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (7)

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼