IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0440997
(2006-05-26)
|
등록번호 |
US-7290646
(2007-11-06)
|
우선권정보 |
FI-20031741(2003-11-28) |
발명자
/ 주소 |
- Mustalahti,Jorma
- Aulanko,Esko
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
6 |
초록
▼
A travelator and method for transporting passengers on a travelator. The travelator includes a plurality of successive conveyors arranged to form an acceleration section, a constant speed section including at least one conveyor having a constant transport speed, and a deceleration section. The accel
A travelator and method for transporting passengers on a travelator. The travelator includes a plurality of successive conveyors arranged to form an acceleration section, a constant speed section including at least one conveyor having a constant transport speed, and a deceleration section. The acceleration section includes successive conveyors having constant speeds stepwise increasing in the transport direction for accelerating a passenger. The deceleration section includes successive conveyors having constant speeds stepwise decreasing in the transport direction for decelerating the passenger. The speeds of the conveyors in the acceleration section and the deceleration section are arranged such that the average acceleration experienced by the passenger over the entire length of the acceleration and deceleration sections is constant. Adjacent successive conveyors in the acceleration and deceleration sections include a common diverting element having a speed change point at which the speeds of the adjacent successive conveyors are different in the transport direction.
대표청구항
▼
What is claimed is: 1. A method for transporting passengers in a transport direction on a travelator having successive conveyors, each successive conveyor comprising: first and second diverting elements located at a distance from each other, each one of the diverting elements comprising a first bel
What is claimed is: 1. A method for transporting passengers in a transport direction on a travelator having successive conveyors, each successive conveyor comprising: first and second diverting elements located at a distance from each other, each one of the diverting elements comprising a first belt pulley and a second belt pulley, with a transmission ratio existing between the first and second belt pulleys; and an endless conveyor belt, the conveyor belt running over the first belt pulley of the first diverting element and over the second belt pulley of the second diverting element, wherein adjacent successive conveyors share a common diverting element such that the second diverting element of a preceding conveyor in the transport direction is the first diverting element of a next successive conveyor in the transport direction, the method comprising: accelerating the passengers in an acceleration section by stepwise increasing constant speeds of successive conveyors in the transport direction from a substantially slow initial speed to a heightened transport speed such that an average acceleration experienced by the passengers is substantially constant throughout the entire acceleration section; transporting the passengers at a constant speed on successive conveyors in a constant-speed section; and decelerating the passengers in a deceleration section by stepwise decreasing the constant speeds of successive conveyors to a substantially slow final speed such that the average deceleration experienced by the passengers is substantially constant throughout the entire deceleration section, wherein at one of the common diverting elements in the acceleration and deceleration sections the speeds of the adjacent successive conveyors are different in the transport direction. 2. The method according to claim 1, wherein the acceleration and deceleration steps include keeping the change of transport speed constant in each stepwise change of speed. 3. The method according to claim 1, wherein the acceleration section comprises acceleration portions and constant-speed portions, and the method includes alternating the acceleration portions with constant speed portions of different lengths. 4. The method according to claim 3, including alternately arranging the acceleration portions and constant-speed portions so that a transport distance in the constant-speed portions is longer as the transport speed increases. 5. The method according to claim 4, including varying the length of the transport distances in the constant-speed portions as a square of the transport speed. 6. The method according to claim 1, wherein the deceleration section includes deceleration portions and constant speed portions and the method includes alternating the deceleration portions with constant-speed portions of different lengths. 7. The method according to claim 6, including alternately arranging the deceleration portions and constant-speed portions so that a transport distance in the constant-speed portions is shortened as the transport speed decreases. 8. The method according to claim 7, including varying the length of the transport distances in the constant-speed portions as a square of the transport speed. 9. The method according to claim 1, wherein the initial speed and the final speed are on the order of about 0.5-0.7 m/s. 10. The method according to claim 1, wherein the transport speed in the constant speed section is about 2.5-7 m/s. 11. The method according to claim 1, wherein the transport speed in the constant speed section is about 3-6 m/s. 12. The method according to claim 1, wherein the transport speed in the constant speed section is about 5 m/s. 13. The method according to claim 1, including adapting the stepwise change of transport speed in the acceleration section so that the average acceleration experienced by the passengers is on the order of about 0.3 m/s2. 14. The method according to claim 1, including adapting the stepwise change of transport speed in the deceleration section so that the average deceleration experienced by the passengers is on the order of about 0.3 m/s2. 15. The method according to claim 1, wherein the speed difference between the constant speeds of successive conveyors in the acceleration and deceleration sections is on the order of about 0.5 m/s. 16. A travelator for passenger transport in a transport direction, comprising: a plurality of successive conveyors arranged to form (a) an acceleration section, which includes successive conveyors having constant speeds stepwise increasing in the transport direction for accelerating a passenger from a substantially slow initial speed to an increased transport speed, (b) a constant-speed section containing at least one conveyor having a constant passenger transport speed, and (c) a deceleration section including successive conveyors having constant speeds stepwise decreasing in the transport direction for decelerating the passenger from the constant transport speed to a decelerated final speed, wherein the speeds of the conveyors in the acceleration section and the deceleration section are adapted so that the average acceleration experienced by the passenger over the entire length of the acceleration and deceleration sections is constant, and wherein adjacent successive conveyors in the acceleration and deceleration sections include a common diverting element having a speed change point at which the speeds of the adjacent successive conveyors are different in the transport direction. 17. The travelator according to claim 16, wherein transport distances of the acceleration section and deceleration section are of a substantially equal length and the speed difference in each stepwise speed change is constant. 18. The travelator according to claim 16, wherein the acceleration section contains acceleration portions where successive conveyors have a speed difference of a constant magnitude between them, and constant-speed portions where successive conveyors have the same transport speeds. 19. The travelator according to claim 18, wherein the acceleration portions and constant-speed portions are alternately arranged and the transport distance in the constant-speed portions is increased as the transport speed increases. 20. The travelator according to claim 16, wherein the deceleration section comprises deceleration portions where successive conveyors have a speed difference of a constant magnitude between them, and constant-speed portions where successive conveyors have the same transport speeds. 21. The travelator according to claim 20, wherein the deceleration portions and constant-speed portions are alternately arranged so that the transport distance in the constant speed portions is shorter as the transport speed decreases. 22. The travelator according to claim 19, wherein the length of the transport distances of the constant-speed portions in the acceleration section varies as the square of the transport speed. 23. The travelator according to claim 16, wherein the point of speed change between two successive conveyors is on a horizontal straight line perpendicular to the transport direction. 24. The travelator according to claim 16, wherein each successive conveyor comprises: first and second diverting elements located at a distance from each other, each one of the diverting elements comprising a number of first belt pulleys and a number of second belt pulleys, with a transmission ratio existing between the first and second belt pulleys, and which first and second belt pulleys in each diverting element are arranged alternately in succession fixedly on the same shaft and rotatable about a common axis of rotation; and a number of parallel endless conveyor belts, each one of the conveyor belts running over the first belt pulley of the first diverting element and over the second belt pulley of the second diverting element; wherein in adjacent successive conveyors, the second diverting element of a preceding conveyor in the transport direction is the first diverting element of the next conveyor in the transport direction, so that each diverting element includes a point of speed change between successive conveyors. 25. The travelator according to claim 24, wherein the transmission ratio between the first belt pulley and the second belt pulley is determined by a ratio of the diameters of the belt pulleys. 26. The travelator according to claim 24, wherein in the acceleration section, the diameter of the first belt pulley is larger than the diameter of the second belt pulley. 27. The travelator according to claim 24, wherein in the deceleration section, the diameter of the first belt pulley is smaller than the diameter of the second belt pulley. 28. The travelator according to claim 24, wherein the endless conveyor belts comprise cogged belts; the first belt pulley and the second belt pulley comprise cogged belt pulleys having different numbers of teeth, and the transmission ratio between the first and the second belt pulleys is determined by the ratio of the numbers of teeth on the belt pulleys. 29. The travelator according to 24, wherein the transmission ratio i between the first belt pulley and second belt pulley in the acceleration section is 1i≧0.9. 31. The travelator according to claim 16, wherein the initial speed and the final speed of the travelator are on the order of about 0.5-0.7 m/s. 32. The travelator according to claim 16, wherein the transport speed in the constant-speed section of the travelator is on the order of about 2.5-7 m/s. 33. The travelator according to claim 16, wherein the transport speed in the constant-speed section of the travelator is on the order of about 3-6 m/s. 34. The travelator according to claim 16, wherein the transport speed in the constant-speed section of the travelator is on the order of about 5 m/s. 35. The travelator according to claim 16, wherein the stepwise change of transport speed in the acceleration section is adapted so that the average acceleration experienced by the passengers is on the order of about 0.3 m/s2. 36. The travelator according to claim 16, wherein the stepwise change of transport speed in the deceleration section is adapted so that the average deceleration experienced by the passengers is on the order of about 0.3 m/s2. 37. The travelator according to claim 16, wherein the speed difference between the constant speeds of successive conveyors in the acceleration and deceleration sections is of the order of 0.5 m/s.
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