IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0266639
(2002-10-09)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
16 인용 특허 :
15 |
초록
▼
A guidance system for providing control over the height and inclination of a portable screed is provided. The guidance system includes an inclination measuring device for measuring an inclination, an inclination display for displaying the measured inclination to an operator, a level measuring device
A guidance system for providing control over the height and inclination of a portable screed is provided. The guidance system includes an inclination measuring device for measuring an inclination, an inclination display for displaying the measured inclination to an operator, a level measuring device for measuring a height relative to a reference signal, and a level display for displaying the measured height to the operator. The inclination measuring device, inclination display, level measuring device and level display can be mounted on a portable screed. The inclination display and the level display are adapted to be used by the operator to guide the portable screed.
대표청구항
▼
1. A portable screed comprising:a blade;one or more handles operatively associated with the blade;one or more inclination sensors adapted to measure and indicate the inclination of the portable screed during screeding; andone or more level sensors adapted to measure and indicate the vertical positio
1. A portable screed comprising:a blade;one or more handles operatively associated with the blade;one or more inclination sensors adapted to measure and indicate the inclination of the portable screed during screeding; andone or more level sensors adapted to measure and indicate the vertical position of the screed relative to a reference signal during screeding. 2. The portable screed of claim 1, further comprising a vibrator assembly for vibrating at least the blade. 3. The portable screed of claim 1, wherein the blade is a floating blade. 4. The portable screed of claim 1, wherein the blade is a compound blade. 5. The portable screed of claim 1, wherein the one or more inclination sensors comprise mechanical inclinometers. 6. The portable screed of claim 1, wherein the one or more inclination sensors comprise electronic inclinometers. 7. The portable screed of claim 1, further comprising one or more remote inclination displays adapted to be positionable remote from the one or more inclination sensors. 8. The portable screed of claim 1, wherein the reference signal comprises a laser and the one or more level sensors comprise laser sensor eyes. 9. The portable screed of claim 1, further comprising one or more remote level displays adapted to be positionable remote from the one or more level sensors. 10. The portable screed of claim 1, wherein the one or more level sensors are positioned approximately vertically above the blade. 11. The portable screed of claim 1, wherein the one or more level sensors are not positioned approximately vertically, above the blade. 12. The portable screed of claim 1, wherein at least one of the one or more level sensors and the one or more inclination sensors is adjustably mounted. 13. The portable screed of claim 1, further comprising one or more control panels, the control panels each comprising at least one of an inclination display and a level display. 14. The portable screed of claim 1, further comprising one or more control units, the control units each comprising at least one of an inclination display and a level display. 15. The portable screed of claim 14, wherein the one or more control units comprise at least one of an audible indicator and a visual indicator adapted to signal when one of both of the measured fore-aft angular orientation and the measured vertical position is outside a predetermined tolerance. 16. The portable screed of claim 1, further comprising one or more tilt sensors operatively associated with the blade and adapted to measure and indicate the tilt of the portable screed during screeding. 17. The portable screed of claim 16, wherein the one or more tilt sensors comprise electronic inclinometers. 18. The portable screed of claim 16, further comprising one or more remote tilt displays adapted to be positionable remote from the one or more tilt sensors. 19. The portable screed of claim 16, further comprising one or more tilt displays positioned on one or more control panels. 20. The portable screed of claim 16, further comprising one or more tilt displays integrated into one or more control units. 21. A two-man portable screed comprising:a blade;first and second handles operatively associated with the blade;first and second inclination sensors adapted to measure and display first and second inclinations, respectively, of the portable screed during screeding; andfirst and second level sensors adapted to measure and display first and second vertical positions, respectively, relative to a reference signal during screeding. 22. The two-man portable screed of claim 21, wherein the first inclination sensor and the first level sensor are disposed proximal to the first handle and the second inclination sensor and the second level sensor are disposed proximal to the second handle. 23. The two-man portable screed of claim 21, further comprising at least one vibrator assembly for vibrating at least the blade. 24. The two-man portable screed of claim 23, wherein the vibrator asse mbly is operatively associated with the blade between the first and second handles. 25. The two-man portable screed of claim 21, wherein the blade is a floating blade. 26. The two-man portable screed of claim 21, wherein the blade is a compound blade. 27. The two-man portable screed of claim 21, wherein the one or more inclination sensors comprise electronic inclinometers. 28. The two-man portable screed of claim 21, further comprising one or more remote inclination displays adapted to be positionable remote from the one or more inclination sensors. 29. The two-man portable screed of claim 21, wherein the reference signal comprises a laser and the one or more level sensors comprise laser sensor eyes. 30. The two-man portable screed of claim 21, further comprising one or more remote level displays adapted to be positionable remote from the one or more level sensors. 31. The two-man portable screed of claim 21, wherein at least one of the one or more level sensors and the one or more inclination sensors is adjustably mounted. 32. The two-man portable screed of claim 21, further comprising first and second control panels positioned proximal to the first and second handles, respectively, each control panels comprising at least one of an inclination display and a level display. 33. The two-man portable screed of claim 21, further comprising first and second control units, each control unit comprising at least one of an inclination display and a level display. 34. The two-man portable screed of claim 33, wherein the first and second control units comprise at least one of an audible indicator and a visible indicator adapted to signal when one of both of the measured fore-aft angular orientation and the measured vertical position is outside a predetermined tolerance.
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