IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0236845
(2002-09-06)
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발명자
/ 주소 |
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출원인 / 주소 |
- Westinghouse Air Brake Technologies Corporation
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
5 |
초록
▼
A door operator having a door hanger comprising a pair of double trolley assemblies disposed for linear movement within a hanger rail, wherein each trolley assembly further comprises two rollers mounted substantially opposite one another and engaging roller cavities within said hanger rail. Said doo
A door operator having a door hanger comprising a pair of double trolley assemblies disposed for linear movement within a hanger rail, wherein each trolley assembly further comprises two rollers mounted substantially opposite one another and engaging roller cavities within said hanger rail. Said door hanger is integrated with the drive system or is mounted independently of the drive system for replacement of the door hanger of the prior art or in new application requiring such independency between the door hanger and drive system.
대표청구항
▼
1. A powered door system disposed within an aperture of a transit vehicle structure for at least partially covering and uncovering said aperture, said powered door system comprising:(a) a door(b) a powered door operator attached to said door for driving said door in a drive direction to cover and un
1. A powered door system disposed within an aperture of a transit vehicle structure for at least partially covering and uncovering said aperture, said powered door system comprising:(a) a door(b) a powered door operator attached to said door for driving said door in a drive direction to cover and uncover said aperture, said door operator mounted substantially overhead of said door; said door operator attached to said transit vehicle structure; said door operator having a drive system and a door hanger integral with said drive system, said door hanger connected to said door for driving said door in a drive direction by said drive system, said door hanger includes:(i) a hanger rail having a first roller portion having a first roller cavity; a second roller portion having a second roller cavity, said second roller cavity disposed substantially opposite said first roller cavity; and a mounting surface portion disposed intermediate said first roller portion at one end and said second roller portion at a distal end;(ii) a driving trolley assembly engageable with said drive nut, said driving trolley assembly adapted for movement within said hanger rail;(iii) a driven trolley assembly, said driven trolley assembly adapted for movement within said hanger rail; and(iv) at least one hanger bracket attached to said door, said at least one hanger bracket attached to one of said driving trolley assembly and said driven trolley assembly. 2. The powered door system according to claim 1, wherein said drive system further includes:(a) a prime mover;(b) a helical drive member attached to said prime mover at one end, said drive member being aligned substantially parallel to said drive direction;(c) a bearing engaging said helical drive member at a distal end;(d) a coupling means disposed intermediate said helical drive member and said prime mover, said coupling means connecting said helical drive member with said prime mover; and(e) a drive nut having a first predetermined diameter, said drive nut engaging said helical drive member; said drive nut is driven thereby in a linear direction upon rotation of said helical drive member enabled by said prime mover, said drive nut having a force transmitting member. 3. The powered door system according to claim 2, wherein said coupling means is at least one of a type coupling and a universal joint. 4. The powered door system according to claim 1, wherein said helical drive member is directly connected to said prime mover. 5. The powered door system according to claim 1, wherein said first roller cavity includes:(a) a first concave portion;(b) a second concave portion; and(c) a first wall portion disposed intermediate said first concave portion at one end and said second concave portion at a distal end. 6. The powered door system according to claim 5, wherein said second roller cavity includes:(a) a third concave portion;(b) a fourth concave portion; and(c) a second wall portion disposed intermediate said third concave portion at one end and said forth concave portion at a distal end. 7. The powered door system according to claim 5, wherein said roller having said convex outer surface of a third predetermined diameter engages said first concave portion of said first roller cavity, said roller having said convex outer surface of a third predetermined diameter further engages said third concave portion of said second roller cavity. 8. The powered door system according to claim 5, wherein said roller having said concave outer surface of a third predetermined diameter engages said first convex portion of said first roller cavity, said roller having said concave outer surface of a third predetermined diameter further engages said third convex portion of said second roller cavity. 9. The powered door system according to claim 1, wherein said first roller cavity includes:(a) a first convex portion;(b) a second convex portion; and(c) a first wall portion disposed intermediate said first convex portion at one end and said second convex portion at a distal end. 10. The powered door system according to claim 9, wherein said second roller cavity includes:(a) a third convex portion;(b) a fourth convex portion; and(c) a second wall portion disposed intermediate said third convex portion at one end and said forth convex portion at a distal end. 11. The powered door system according to claim 1 wherein said first roller cavity is substantially identical to said second roller cavity. 12. The powered door system according to claim 1, wherein said first roller cavity is one of inwardly disposed and outwardly disposed within said hanger rail. 13. The powered door system according to claim 1, wherein said second roller cavity is one of inwardly disposed and outwardly disposed within said hanger rail. 14. The powered door system according to claim 1, wherein said hanger rail further includes a wear resistant means disposed within said hanger rail, said wear resistant means substantially eliminating surface wear due to contact by said first trolley assembly, said wear resistant means further substantially eliminating surface wear due to contact by said second trolley assembly. 15. The powered door system according to claim 14, wherein said wear resistant means is produced by one of an anodizing process and a hard anodizing process. 16. The powered door system according to claim 1, wherein said hanger rail is manufactured by an aluminum extrusion process, said hanger rail having a third predetermined structural strength to support said door and said drive system and said plurality of trolley assemblies. 17. The powered door system according to claim 1, wherein said hanger rail further includes a mounting means for attachment to said transit vehicles structure. 18. The powered door system according to claim 1, wherein said driving trolley assembly includes:(a) a driving trolley housing having at least two substantially cylindrical roller mounting portions disposed within a first body portion; said first body portion having a first cylindrical cavity;(b) at least two rollers engaging said two substantially cylindrical roller mounting portions disposed within said first body portion of said driving trolley housing, said at least two rollers disposed substantially opposite each other; and(c) at least two retaining rings engaging said two substantially cylindrical roller mounting portions disposed within said first body portion of said driving trolley housing; said retaining rings are for substantial retainment of said at least two rollers thereof. 19. A powered door system according to claim 18, wherein said driving trolley housing further includes:(a) a second body portion connected to said first body portion;(b) a second semi-cylindrical cavity disposed within said second body portion; said second semi-cylindrical cavity having a second predetermined diameter; said second predetermined diameter substantially equal to said first predetermined diameter of said drive nut;(c) a force receiving member disposed within said second body portion, said forth receiving member engaging said force transmitting member disposed within said drive nut; and(d) a force transmitting portion having a vertical displacement compensation cavity for transferring linear motion generated by said drive nut to said hanger bracket, said force transmitting portion having a vertical displacement compensation cavity for transferring linear motion generated by said drive nut to said door. 20. The powered door system according to claim 19, wherein said driving trolley housing is manufactured from a stainless steel, said driving trolley housing having a first predetermined structural strength of said first body portion and second body portion in combination with said first cylindrical cavity and said second semicylindrical cavity, said first predetermined structural strength capable of supporting at least partial weight of said door. 21. The powered door system according to claim 18, wher ein said roller having a bearing means disposed within a roller housing having a convex outer surface of a third predetermined diameter. 22. The powered door system according to claim 1, wherein said driven trolley assembly includes:(a) a driven trolley housing having at least two substantially cylindrical roller mounting portions disposed within a body portion; said body portion having a third cylindrical cavity;(b) at least two rollers engaging said at least two substantially cylindrical roller mounting portions disposed within said body portion of said driven trolley housing, said at least two rollers disposed substantially opposite each other; and(c) at least two retaining rings engaging said at least two substantially cylindrical roller mounting portions disposed within said body portion of said driven trolley housing; said at least two retaining rings are for substantial retainment of said at least two rollers thereof. 23. The powered door system according to claim 22, wherein said driven trolley housing further includes at least one force transmitting portion disposed within said body portion having a vertical displacement compensation cavity for transferring said linear motion to said hanger bracket, said at least one force transmitting portion having a vertical displacement compensation cavity for transferring linear motion generated by said drive nut to said door. 24. The powered door system according to claim 1, wherein said powered door system includes a pair of hanger brackets equally spaced on said door, said pair having a first hanger bracket attached to said driving trolley assembly at one end of said door, said pair having a second hanger brackets attached to said driven trolley assembly at the distal end of said door. 25. The powered door system according to claim 1, wherein said at least one hanger bracket prevents said drive nut from rotating about an axis of said helical drive member, said at least one hanger bracket, further providing linear constraint of said drive nut along said axis of said helical drive member between said drive nut and said door so that rotation of said helical drive member causing motion of said drive nut parallel to said axis of said helical drive member causes movement of said door parallel to said drive direction. 26. A powered door system disposed within an aperture of a transit vehicle structure for at least partially covering and uncovering said aperture, said powered door system comprising:(a) a door(b) a powered door operator having a connection to said door for enabling said door to move in a drive direction to cover and uncover said aperture, said door operator mounted substantially overhead of said door; said door operator attached to said transit vehicle structure; and(c) a door hanger connected to said door for driving said door in a drive direction, said door hanger attached to said transit vehicle structure; said door hanger includes:(i) a hanger rail having a first roller portion with a first roller cavity; a second roller portion with a second roller cavity, said second roller cavity disposed substantially opposite said first roller cavity; and a mounting surface portion disposed intermediate said first roller portion at one end and said second roller portion at a distal end;(ii) at least one trolley assembly disposed for movement within said hanger rail; and(iii) at least one hanger bracket substantially attached to said door, said at least one hanger bracket attached to said at least one trolley assembly. 27. The powered door system according to claim 26, wherein said powered door system includes a pair of trolley assemblies equally disposed about said door. 28. The powered door system according to claim 26, wherein said powered door system includes two hanger brackets equally spaced on said door. 29. The powered door system according to claim 26, wherein said first roller cavity includes:(a) a first concave portion;(b) a second concave portion; and(c) a first wal l portion disposed intermediate said first concave portion at one end and said second concave portion at a distal end. 30. The powered door system according to claim 29, wherein said second roller cavity includes:(a) a third concave portion;(b) a fourth concave portion; and(c) a second wall portion disposed intermediate said third concave portion at one end and said forth concave portion at a distal end. 31. The powered door system according to claim 26, wherein said first roller cavity includes:(a) a first convex portion;(b) a second convex portion; and(c) a first wall portion disposed intermediate said first convex portion at one end and said second convex portion at a distal end. 32. The powered door system according to claim 31, wherein said second roller cavity includes:(a) a third convex portion;(b) a fourth convex portion; and(c) a second wall portion disposed intermediate said third convex portion at one end and said forth convex portion at a distal end. 33. A door hanger enageable with a door of a transit vehicle, disposed within an aperture of a transit vehicle structure, said door hanger enabling movement of said door for at least partially covering and uncovering said aperture, said door hanger comprising:(a) a hanger rail having a first roller portion with a first roller cavity; a second roller portion with a second roller cavity, disposed substantially opposite said first roller cavity; and is rigidly connected thereto;(b) at least one trolley assembly adapted for movement within said hanger rail, said at least one trolley assembly having a housing with at least two roller mounting portions disposed thereon, at least two rollers coupled to said at least two roller mounting portions, said at least two rollers engaging said first roller portion and said second roller portion, and a means for substantially retaining said at least two rollers on said housing during said movement of said door;(c) at least one hanger bracket substantially attached to said door, and to said at least one trolley assembly; and(d) wherein said at least one hanger bracket includes a mounting means for engaging such transit vehicle structure.
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