[특허]Air tool

Hitachi Koki Co., Ltd.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Air tool

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B25D-015/00
미국특허분류(USC)	173/169; 173/093.5; 173/168
출원번호	US-0441073 (2006-05-26)
등록번호	US-7325627 (2008-02-05)
우선권정보	JP-P2005-156694(2005-05-30)
발명자 / 주소	Tanji,Isamu
출원인 / 주소	Hitachi Koki Co., Ltd.
대리인 / 주소	Mattingly, Stanger, Malur & Brundidge, P.C.
인용정보	피인용 횟수 : 9 인용 특허 : 13

초록
▼

A center portion of a handle housing portion 3 is arranged with a pressure reducing valve mechanism portion 50 for reducing a pressure of high pressure compressed air to be surrounded by an exhaust chamber 40, in a state of making a trigger 37 ON, air pressure P22 of a secondary pressure side port 52 of the pressure reducing valve mechanism portion 50 is made to be higher than air pressure P21 of a secondary pressure side port 52 of the pressure reducing valve mechanism portion 50 in a state of making the trigger 37 OFF by communicating a hermetically closed chamber 59a of a pressure control spring 56 and the exhaust chamber 40 by way of a relief hole 59b such that an exhaust air pressure of an air motor mechanism portion 10 is added to a spring force F of the pressure control spring 56 of the pressure reducing valve mechanism portion 50.

대표
청구항
▼

What is claimed is: 1. An air tool comprising: an air motor mechanism portion, for generating a rotational force by the compressed air, having an air supply port and an exhaust port of compressed air; an exhaust chamber, for discharging the compressed air exhausted from the exhaust port of the air motor mechanism portion to the atmosphere, having an exhaust hole communicating with the atmosphere at a portion of the exhaust chamber; an air joint portion connectable to a high pressure air supply source; a pressure reducing valve mechanism portion including a primary pressure side port connected to a side of the air joint portion, a secondary pressure side port connected to the air supply port of the air motor mechanism portion, an opening/closing valve arranged between the primary pressure side port and the secondary pressure side port for opening/closing a flow path of the compressed air flowing from the primary pressure side port to the secondary pressure side port, a pressure control spring for generating an urge force in a direction of opening the opening/closing valve, a closing direction pressure receiving face for receiving the compressed air operated in a direction of closing the opening/closing valve, and an opening direction pressure receiving face for receiving the compressed air operated to the opening/closing valve in a direction the same as the direction of the urge force of the pressure control spring; and a trigger valve mechanism portion including a valve member for opening/closing a flow path between the secondary pressure side port of the pressure reducing valve mechanism portion and the air supply port of the air motor mechanism portion, a trigger for controlling to open/close the valve member, and a pressing member for pressing in a direction reverse to a direction of operating the trigger for opening the valve member in correspondence with an amount of operating the trigger to drive the air motor mechanism portion; wherein when the air motor mechanism portion is driven by opening the valve member by operating the trigger of the trigger valve mechanism portion, a pressure of air exhausted from the exhaust port of the air motor mechanism portion to the exhaust chamber is added to the urge force of the pressure control spring by being received by the opening direction pressure receiving face of the pressure reducing valve mechanism portion. 2. The air tool according to claim 1, further comprising: a body housing portion extended from one end portion to other end portion thereof, and a handle housing portion hung from the body housing portion; wherein the air motor mechanism portion is mounted to the one end portion of the body housing portion; wherein the pressure reducing valve mechanism portion is mounted to substantially a center portion of the handle housing portion; wherein the exhaust chamber is mounted to the handle housing portion to surround the pressure reducing valve mechanism portion contiguously to the pressure reducing valve mechanism portion; and wherein the trigger valve mechanism portion is mounted to a side of an upper end portion of the handle housing portion connected with the body housing. 3. The air tool according to claim 2, wherein the air joint portion and the exhaust hole of the exhaust chamber are mounted to a side of a lower end portion of the handle housing portion. 4. The air tool according to claim 1, wherein the pressure control spring of the pressure reducing valve mechanism portion urges the opening direction pressure receiving face at inside of a hermetically closed chamber of the pressure reducing valve mechanism portion, and the hermetically closed chamber is communicated with the exhaust chamber by way of a relief hole. 5. An air tool comprising: a body housing portion mounted with an air motor mechanism portion having an air supply port and an exhaust port and a rotational striking mechanism portion; and a handle housing portion mounted with an air joint portion capable of being connected to a high pressure air supply source, a pressure reducing valve mechanism portion for reducing a pressure of high pressure air supplied from the air joint portion to a high pressure air side port to a pressure of low pressure air at a normal pressure air side port, a trigger valve mechanism portion including a valve member for controlling to open/close a flow path for supplying an output of reduced pressure air of the pressure reducing valve mechanism portion to the air supply port of the air motor mechanism portion, and a handle housing portion mounted with an exhaust chamber communicated with the exhaust port of the air motor mechanism portion and having an exhaust hole to the atmosphere; wherein the pressure reducing valve mechanism portion includes an opening/closing valve for opening/closing a flow path of compressed air flowing from the high pressure air side port to the normal pressure air side port, a pressure control spring for generating an urge force in a direction of opening the opening/closing valve, a closing direction pressure receiving face for receiving compressed air operated in a closing direction of the opening/closing valve, and an opening direction pressure receiving face for receiving compressed air operated to the opening/closing valve in a direction the same as the direction of the urge force of the pressure control spring; wherein the exhaust chamber is formed contiguously to the pressure reducing valve mechanism portion; and wherein when the air motor is driven by opening the valve member by operating the trigger valve mechanism portion, a pressure of exhausted air of the air motor mechanism portion exhausted to the exhaust chamber is added to the urge force of the pressure control spring by being received by the opening direction pressure receiving face of the pressure reducing valve mechanism portion. 6. The air tool according to claim 5, wherein the body housing portion is extended, the handle housing portion is constituted by a shape of being hung from the body housing portion, and the air plug and the exhaust hole are provided at a lower end portion of the handle housing. 7. The air tool according to claim 5, wherein the pressure control spring of the pressure reducing valve mechanism portion is engaged with the opening direction pressure receiving face at inside of a hermetically closed chamber of the pressure reducing valve mechanism portion, and the hermetically closed chamber is communicated with the exhaust chamber by way of a relief hole.

이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 9

IPC 상위 출원인

내보내기

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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)
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특허 상세정보

Air tool

초록
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청구항
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이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 9

IPC 상위 출원인

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특허 상세정보

Air tool

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이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 9

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

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