[특허]Weighing apparatus having opposed wheels

Mettler-Toledo, LLC

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Weighing apparatus having opposed wheels

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01G-019/00
미국특허분류(USC)	177/145; 177/160; 177/161; 198/470.1; 198/474.1; 141/083
출원번호	US-0650601 (2009-12-31)
등록번호	US-8274001 (2012-09-25)
발명자 / 주소	Uber, John
출원인 / 주소	Mettler-Toledo, LLC
대리인 / 주소	Standley Law Group LLP
인용정보	피인용 횟수 : 2 인용 특허 : 21

초록

Weighing apparatus for weighing and conveying items of various shape and size. The weighing apparatus apparatus includes at least two oppositely rotating wheels that engage an item to be weighed. A force measurement element, such as a load cell, is provided to weigh the item to be weighed while the item is conveyed by the wheels in a suspended position. More than one pair of wheels may be employed.

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1. A weighing apparatus comprising: a support structure;at least one pair of wheels suspended from said support structure, said wheels adjacently arranged and adapted to receive and engage items to be weighed as said items are conveyed past said at least one pair of wheels, such that said items will be supported in a suspended position during weighing and returned to a conveyor in substantially the same orientation as received by said at least one pair of wheels;a driving device for causing rotation of said wheels, one of said wheels rotating in a direction opposite to the direction of rotation of the other of said wheels, such that items are transported through said apparatus by rotation of said at least one pair of wheels; anda force measuring device associated with said at least one pair of wheels and adapted to determine the weights of items to be weighed while said items are suspended from said wheels. 2. The apparatus of claim 1, wherein each of said wheels is suspended on a driveshaft that extends downward from said support structure. 3. The apparatus of claim 2, wherein said driveshafts include a pulley that is coupled to a motor-driven belt. 4. The apparatus of claim 1, wherein said force measuring device is selected from the group consisting of at least one load cell, load cells in a flexure system, and an Electromagnetic Force Restoration scale. 5. The apparatus of claim 1, wherein an adjustable gap is present between said wheels. 6. The apparatus of claim 1, wherein one wheel includes a circumferential rib and the other wheel includes a circumferential groove that receives at least a portion of said rib. 7. The apparatus of claim 1, wherein said wheels are contoured so as to substantially conform to at least a portion of an item to be weighed. 8. The apparatus of claim 1, wherein at least a portion of at least one of said wheels is constructed of a pliant material that permits the shape of said at least one wheel to at least partially conform to the shape of an item to be weighed. 9. The apparatus of claim 1, wherein at least one wheel of a wheel pair includes an outer jacket. 10. The apparatus of claim 9, wherein said outer jacket is interchangeable with other outer jackets of dissimilar material and/or size. 11. The apparatus of claim 1, wherein at least one wheel of a wheel pair is interchangeable with other wheels of dissimilar material and/or size. 12. The apparatus of claim 1, wherein a plurality of wheel pairs are present, said wheel pairs arranged in succession along a path of travel of said items to be weighed. 13. The apparatus of claim 12, wherein the distance between successive wheel pairs is adjustable. 14. The apparatus of claim 12, wherein an item is weighed while suspended from only a certain wheel pair(s), and said wheel pair(s) is selectable. 15. The apparatus of claim 1, wherein said apparatus is located at a gap between conveyors. 16. A weighing apparatus comprising: a support structure;a driven portion including at least one pair of wheels suspended beneath said support structure on respective driveshafts, said wheels adjacently arranged and adapted to receive and engage items to be weighed as said items are conveyed past said at least one pair of wheels, such that said items will be supported in a suspended position during weighing and returned to a conveyor in substantially the same orientation as received by said at least one pair of wheels;a driving portion for causing opposite rotation of wheels in a given wheel pair such that items to be weighed are transported through said apparatus by rotation of said wheels, said driving portion including at least one drive motor associated with said at least one pair of wheels; andat least one force measuring device associated with said at least one pair of wheels and adapted to determine the weights of items to be weighed while said items are suspended from said at least one pair of wheels. 17. The apparatus of claim 16, wherein said driveshafts include a pulley that is coupled to said at least one drive motor by a belt. 18. The apparatus of claim 16, wherein said force measuring device is selected from the group consisting of a load cell, load cells in a flexure system, and an Electromagnetic Force Restoration scale. 19. The apparatus of claim 16, wherein an adjustable gap is present between said wheels. 20. The apparatus of claim 16, wherein a plurality of wheel pairs are present, said wheel pairs arranged in succession along a path of travel of said items to be weighed. 21. The apparatus of claim 20, wherein the distance between successive wheel pairs is adjustable. 22. The apparatus of claim 20, wherein an item is weighed while suspended from only a certain wheel pair(s), and said wheel pair(s) is selectable. 23. A weighing apparatus comprising: a support structure;a driven portion associated with said support structure and including at least one pair of wheels mounted on respective driveshafts, said wheels adjacently arranged and adapted to engage items to be weighed such that said items are supported in a suspended position during weighing;a driving portion, said driving portion including at least one drive motor coupled by a belt to a pulley on each driveshaft, said driving portion producing opposite rotation of wheels in a given wheel pair such that items to be weighed are transported through said apparatus by rotation of said wheels; andat least one force measuring device located between said support structure and a base, said at least one force measuring device associated with said at least one pair of wheels and adapted to determine the weights of items to be weighed while said items are suspended from said at least one pair of wheels. 24. The apparatus of claim 23, wherein said at least one pair of wheels is located above said support structure. 25. The apparatus of claim 23, wherein said at least one pair of wheels is located below said support structure. 26. The apparatus of claim 23, wherein said force measuring device is selected from the group consisting of a load cell, load cells in a flexure system, and an Electromagnetic Force Restoration scale. 27. The apparatus of claim 23, wherein an adjustable gap is present between said wheels. 28. The apparatus of claim 23, wherein a plurality of wheel pairs are present, said wheel pairs arranged in succession along a path of travel of said items to be weighed. 29. The apparatus of claim 28, wherein the distance between successive wheel pairs is adjustable. 30. The apparatus of claim 28, wherein an item is weighed while suspended from only a certain wheel pair(s), and said wheel pair(s) is selectable. 31. A weighing apparatus comprising: a support structure;at least one pair of wheels, each of said wheels suspended on a driveshaft that extends downward from said support structure, said wheels adjacently arranged and adapted to engage items to be weighed such that said items are supported in a suspended position during weighing;a driving device for causing rotation of said wheels, one of said wheels rotating in a direction opposite to the direction of rotation of the other of said wheels, such that items are transported through said apparatus by rotation of said at least one pair of wheels; anda force measuring device associated with said at least one pair of wheels and adapted to determine the weights of items to be weighed while said items are suspended from said wheels. 32. A weighing apparatus comprising: a support structure;a plurality of wheel pairs suspended from said support structure, said wheel pairs arranged in succession along a path of travel of said items to be weighed and adapted to engage items to be weighed such that said items are supported in a suspended position during weighing;a driving device for causing rotation of said wheels, one of said wheels rotating in a direction opposite to the direction of rotation of the other of said wheels, such that items are transported through said apparatus by rotation of said at least one pair of wheels; anda force measuring device associated with said at least one pair of wheels and adapted to determine the weights of items to be weighed while said items are suspended from said wheels.

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Weighing apparatus having opposed wheels

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Weighing apparatus having opposed wheels

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이 특허에 인용된 특허 (21)

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