[특허]Paver with material supply and mat grade and slope quality control apparatus and method

Paver with material supply and mat grade and slope quality control apparatus and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E01C-019/00
출원번호	US-0028995 (1993-03-10)
발명자 / 주소	Musil Joseph E. (Ely IA) Macku Charles G. (Cedar Rapids IA)
출원인 / 주소	Cedarapids, Inc. (Cedar Rapids IA 02)
인용정보	피인용 횟수 : 87 인용 특허 : 0

초록 ▼

An asphalt paver includes a microprocessor controlled integrated control system to control both the operation of a tractor unit of the paver and the positioning of the screed during a paving operation. A paver operator may operate the paver and monitor the screed position with respect to a grade reference. The correction of grade or transverse slope errors is accomplished by monitoring the linear advance of the paver and then measuring a any deviation of the screed with respect to a grade reference. The amount of vertical deviation and the linear advance since a most recent correct reading allows a rate of deviation per unit advance of the paver to be determined. A correction is applied as a change in the angle of attack of the screed, the change being equal and opposite to the determined rate of deviation. A transverse slope change is also measured directly at the screed. A measured transverse angular deviation is translated into a vertical deviation which is then translated into a rate of deviation per unit advance of the paver with a corrective twist being applied to the screen to offset the deviation. Advantageously dual grade sensors and dual slope sensors are contemplated to provide an automated microprocessor controlled grade and slope control in accordance herewith.

대표청구항 ▼

Paving apparatus comprising: a tractor unit; a paving screed having a width extending transversely across a width of a path to be paved, the screed coupled by left and right pull arms to the tractor unit to be pulled by the tractor unit, left and right pull arm positioning actuator devices coupled to the tractor unit and to the pull arms, the actuator devices operable to orient the screed at an angle of attack with respect to the direction of travel of the tractor unit at respective left and right sides thereof; material transfer conveyor means having at least one conveyor track extending from the front to the rear of the tractor unit and left and right transverse material distribution conveyors disposed transversely to a direction of travel of the paving apparatus and in front of the screed to distribute material across the width of the screed; grade control sensing means including means for sensing the height of the screed with respect to a grade reference and means for measuring travel of the tractor unit; and a control device including a screed position control means for controlling the angle of attack of the screed based on a magnitude of a height deviation of the screed with respect to the grade reference within a unit of measured travel of the tractor unit.

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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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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

연합인증

Paver with material supply and mat grade and slope quality control apparatus and method 원문보기

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Paver with material supply and mat grade and slope quality control apparatus and method 원문보기

초록 ▼

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연구과제 타임라인

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이 특허를 인용한 특허 (87)

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