CN1541181A - Inclined high-speed escalator - Google Patents

Abstract

In a high-speed inclined portion escalator, a traveling speed of steps in an intermediate inclined portion is set so as to be faster than a traveling speed of the steps in an upper landing portion and a lower landing portion. An upper portion moving handrail and a lower portion moving handrail are moved cyclically at a speed corresponding to the traveling speed of the steps in the upper landing portion and the lower landing portion. An intermediate moving handrail is moved cyclically at a faster speed than the upper portion moving handrail and the lower portion moving handrail so as to correspond to the traveling speed of the steps in the intermediate inclined portion.

Description

Inclined high-speed escalator

technical field

The present invention relates to a high-speed escalator with an inclined part, in which the moving speed of the steps in the middle inclined part is faster than the moving speed of the steps in the upper landing part and the lower landing part. quick.

Background technique

In recent years, many high-lift escalators have been installed in subway stations and the like. In this escalator, passengers must stand on the steps for a long time in a static state, and many passengers feel uncomfortable. Therefore, escalators that operate at high speeds have been developed, but an upper limit is set on the operating speed for passengers to get on and off safely.

In this regard, a high-speed escalator at the inclined portion has been proposed. The high-speed escalator at the inclined portion operates at a low speed at the upper and lower entrances where passengers board and disembark, accelerates and decelerates at the upper curved portion and the lower curved portion, and inclines in the middle. High-speed operation can shorten the time of taking the escalator. Such a high-speed escalator at an inclined portion is disclosed, for example, in JP-A-51-116586.

Fig. 8 is a schematic side view showing an example of a conventional high-speed escalator at an inclined portion. In the figure, the main frame 1 is provided with a plurality of steps 2 connected in a ring shape. The step 2 is driven by a driving unit (step driving device) 3 to move in a circular manner. On the top of the main frame 1, a pair of railings 4 are erected. The handrails 4 are arranged on both sides of the step 2 in the width direction.

The main frame 1 is provided with a driving rail 5 forming a circulation path of the steps 2 , a follower rail 6 for controlling the posture of the steps 2 , and an auxiliary rail 7 for changing the interval between adjacent steps 2 . On the railing 4, a mobile handrail device 25 is provided. The moving handrail device 25 has an annular moving handrail 26 which moves cyclically.

The circulation path of the steps 2 has an outbound section, a return section, an upper inversion section, and a lower inversion section. The outbound section of the circulation road has an upper boarding part (upper horizontal part) A, an upper curved part B, an intermediate slope (fixed slope) C, a lower curved part D, and a lower boarding part (lower side Horizontal Section) E.

Next, FIG. 9 is an enlarged side view showing the vicinity of the upper landing in FIG. 8 . The step 2 has: a pedal 8 for carrying passengers, a riser 9 erected at one end of the pedal 8 in the front-rear direction, a driving roller shaft 10, a pair of driving rollers 11 freely rotatable around the driving roller shaft 10, and a follower roller. A shaft 12 and a pair of follower rollers 13 rotatably centered on the follower roller shaft 12 . The driving roller 11 rotates along the driving guide rail 5 . The follower roller 13 rotates along the follower guide rail 6 .

The drive roller shafts 10 of the steps 2 adjacent to each other are connected to each other by a pair of link mechanisms (zigzag links) 14 . Each link mechanism 14 has first to fifth links 15 to 19 .

One end portion of the first link 15 is rotatably connected to the drive roller shaft 10 . The other end portion of the first link 15 is rotatably connected to the middle portion of the third link 17 via the shaft 20 . One end portion of the second link 16 is rotatably connected to the drive roller shaft 10 of the adjacent step 2 . The other end portion of the second link 16 is rotatably connected to the middle portion of the third link 17 via the shaft 20 .

One end portion of the fourth link 18 is rotatably coupled to the middle portion of the first link 15 . One end portion of the fifth link 19 is rotatably coupled to the middle portion of the second link 16 . The other ends of the fourth and fifth links 18 and 19 are connected to one end of the third link 17 via the slide shaft 21 .

One end portion of the third link 17 is provided with a guide groove 17 a that guides the slide shaft 21 to slide in the longitudinal direction of the third link 17 . A freely rotatable auxiliary roller 22 is provided on the other end portion of the third link 17 . The auxiliary roller 22 is guided by the auxiliary guide rail 7 .

By guiding the auxiliary roller 22 by the auxiliary guide rail 7, the link mechanism 14 is flexed and deformed, and the interval between the drive roller shafts 10, that is, the mutual interval between adjacent steps 2 is changed. Conversely, the track of the auxiliary guide rail 7 is designed so that the mutual interval of adjacent steps 2 changes.

Next, the operation will be described. The speed of the steps 2 is changed by changing the distance between the driving roller shafts 10 of the adjacent steps 2 . That is, in the upper landing portion A and the lower landing portion E where passengers board and disembark, the interval between the driving roller shafts 10 is minimized, and the step 2 moves at a low speed. In addition, in the intermediate inclined portion C, the distance between the driving roller shafts 10 is maximized, and the steps 2 move at a high speed. In addition, in the upper curved portion B and the lower curved portion D, the distance between the driving roller shafts 10 is changed, and the step 2 travels with acceleration and deceleration.

The 1st, 2nd, 4th and 5th connecting rods 15, 16, 18, 19 constitute the so-called zoom-type 4-joint linkage mechanism, and the 3rd connecting rod 17 is used as the axis of symmetry, which can either increase or decrease The angle formed by the first and second links 15 and 16. Accordingly, the distance between the driving roller shafts 10 connected to the first and second links 15 and 16 can be changed.

In the landing portions A and E of FIG. 8 , the distance between the driving roller shafts 10 of adjacent steps 2 is minimized. If from this state, narrow the interval between driving guide rail 5 and auxiliary guide rail 7, then link mechanism 14 carries out the action identical with the action of umbrella stand group when opening umbrella, makes the driving roller shaft 10 of adjacent step 2 The interval expands.

In the middle inclined portion C in FIG. 8 , the distance between the driving rail 5 and the auxiliary rail 7 is the smallest, and the distance between the driving roller shafts 10 of the adjacent steps 2 is the largest. Therefore, in this region, the velocity of step 2 is maximum. In addition, in this state, the first and second links 15 and 16 are arranged approximately on a straight line.

However, in the conventional inclined portion high-speed escalator configured as above, the moving speed of the moving handrail 26 is constant across the entire area, eg, equal to the moving speed of the steps 2 in the intermediate inclined portion C. Therefore, when moving from the intermediate inclined portion C to the entrances A and E, or vice versa, there is a difference in the amount of movement between the moving handrail 26 and the steps 2 , making it difficult to hold the moving handrail 26 .

Contents of the invention

The present invention aims to solve the above-mentioned problems, and aims to obtain a high-speed escalator with an inclined portion that can suppress the difference between the moving speed of the moving handrail and the moving speed of the steps, and when the steps change speed, The mobile armrest can be easily held.

The high-speed escalator based on the inclined part of the present invention has a main frame, a circulation path, a plurality of steps, an upper handrail device, a lower handrail device, and an intermediate handrail device. The circulation path is arranged on the main frame and has: an upper side entrance , the lower landing part, the middle inclined part between the upper landing part and the lower landing part, the upper curved part between the upper landing part and the middle inclined part, the lower part The lower curved part between the entrance and exit and the middle inclined part; the multiple steps are connected in a ring shape and can move circularly along the circulation path; the upper handrail device has a circular upper moving handrail that moves circularly On the main frame near the side entrance; the lower handrail device has a circular lower moving handrail, which is arranged on the main frame near the lower entrance; the middle handrail device has a circular movement ring The middle moving handrail in the shape of a handrail is set on the main frame between the upper handrail device and the lower handrail device; the moving speed of the steps in the middle inclined part is set to be lower The moving speed of the steps in the mouth should be fast, so that the upper moving handrail and the lower moving handrail are cyclically moved at a speed corresponding to the moving speed of the steps in the upper landing and lower landings, The middle moving handrail is made to correspond to the moving speed of the steps in the middle inclined part, and is cyclically moved at a higher speed than the upper moving handrail and the lower moving handrail.

Description of drawings

Fig. 1 is a schematic side view showing an inclined high-speed escalator according to Embodiment 1 of the present invention.

FIG. 2 is an enlarged side view showing the vicinity of an upper curved portion in FIG. 1 .

Fig. 3 is a side view showing main parts of an inclined high-speed escalator according to Embodiment 2 of the present invention.

Fig. 4 is a side view showing main parts of an inclined high-speed escalator according to Embodiment 3 of the present invention.

Fig. 5 is a side view showing main parts of an inclined high-speed escalator according to Embodiment 4 of the present invention.

FIG. 6 is a plan view showing main parts of FIG. 5 .

Fig. 7 is a schematic side view showing an inclined portion high-speed escalator according to Embodiment 5 of the present invention.

Fig. 8 is a schematic side view showing an example of a conventional high-speed escalator at an inclined portion.

Fig. 9 is an enlarged side view showing the vicinity of the upper landing in Fig. 8 .

Detailed ways

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1

Fig. 1 is a schematic side view showing an inclined high-speed escalator according to Embodiment 1 of the present invention. In the figure, the main frame 1 is provided with a plurality of steps 2 connected in a ring shape. The step 2 is driven by a driving unit (step driving device) 3 to move in a circular manner.

The main frame 1 is provided with a drive rail 5 forming a circulation path of the steps 2 , a follower rail 6 for controlling the posture of the steps 2 , and an auxiliary rail 7 for changing the interval between adjacent steps 2 .

The circulation path of the steps 2 has an outbound section, a return section, an upper inversion section, and a lower inversion section. The outbound section of the circulation road has an upper boarding part (upper horizontal part) A, an upper curved part B, an intermediate slope (fixed slope) C, a lower curved part D, and a lower boarding part (lower side Horizontal Section) E. The intermediate inclined portion C is located between the upper landing portion A and the lower landing portion E. As shown in FIG. The upper curved portion B is located between the upper landing portion A and the middle inclined portion C. The lower curved portion D is located between the lower landing portion E and the middle inclined portion C. As shown in FIG.

On the upper part of the main frame 1, a pair of railings 31 are erected. The handrails 31 are arranged on both sides of the step 2 in the width direction. Each railing 31 is composed of an upper railing 32 arranged near the upper landing A, a lower railing 33 arranged near the lower landing E, and an intermediate railing 34 arranged between the upper railing 32 and the lower railing 33 of.

An upper handrail device 35 is provided on the upper rail 32 . Each upper handrail device 35 has an annular upper moving handrail 36 that circulates. A lower handrail device 37 is provided on the lower rail 33 . Each lower handrail device 37 has a ring-shaped lower moving handrail 38 that moves cyclically. The middle handrail device 39 is arranged on the middle railing 34 . Each middle handrail device 39 has an annular middle moving handrail 40 which moves cyclically. In addition, the upper armrest device 35 , the middle armrest device 39 , and the lower armrest device 37 are arranged in series along the longitudinal direction of the main frame 1 (left-right direction in FIG. 1 ). That is, the armrest device is divided into three in the longitudinal direction of the main frame 1 .

Next, FIG. 2 is an enlarged side view showing the vicinity of the upper bending portion B in FIG. 1 . The step 2 has: a pedal 8 for carrying passengers, a riser 9 erected at one end of the pedal 8 in the front-rear direction, a driving roller 10, a driving roller 11 freely rotatable around the driving roller 10, and a follower roller 12 And a follower roller 13 that is freely rotatable around the follower roller shaft 12 . The driving roller 11 rotates along the driving guide rail 5 . The follower roller 13 rotates along the follower guide rail 6 .

The drive roller shafts 10 of the steps 2 adjacent to each other are connected to each other by a link mechanism (zigzag link) 14 . The link mechanism 14 has first to fifth links 15 to 19 .

One end portion of the first link 15 is rotatably connected to the drive roller shaft 10 . The other end portion of the first link 15 is rotatably connected to the middle portion of the third link 17 via the shaft 20 . One end portion of the second link 16 is rotatably connected to the drive roller shaft 10 of the adjacent step 2 . The other end portion of the second link 16 is rotatably connected to the middle portion of the third link 17 via the shaft 20 .

One end portion of the fourth link 18 is rotatably coupled to the middle portion of the first link 15 . One end portion of the fifth link 19 is rotatably coupled to the middle portion of the second link 16 . The other ends of the fourth and fifth links 18 and 19 are connected to one end of the third link 17 via the slide shaft 21 .

One end portion of the third link 17 is provided with a guide groove 17 a that guides the slide shaft 21 to slide in the longitudinal direction of the third link 17 . A freely rotatable auxiliary roller 22 is provided on the other end portion of the third link 17 . The auxiliary roller 22 is guided by the auxiliary guide rail 7 .

By guiding the auxiliary roller 22 by the auxiliary guide rail 7, the link mechanism 14 is flexed and deformed, and the interval between the drive roller shafts 10, that is, the mutual interval between adjacent steps 2 is changed. Conversely, the track of the auxiliary guide rail 7 is designed so that the mutual interval of adjacent steps 2 changes.

Accordingly, the moving speed of the steps 2 in the middle inclined portion C is set to be faster than the moving speeds of the steps 2 in the upper landing portion A and the lower landing portion E. As shown in FIG. In addition, the upper moving handrail 36 and the lower moving handrail 38 circulate at a speed corresponding to the moving speed of the steps 2 in the upper landing A and the lower landing E, and the middle moving handrail 40 and Corresponding to the movement speed of the steps 2 in the middle inclined portion C, the circulation movement is performed at a speed higher than that of the upper moving handrail 36 and the lower moving handrail 38 .

Specifically, the upper moving handrail 36 and the lower moving handrail 38 circulate at the same speed as the moving speed of the steps 2 in the upper landing A and the lower landing E, and the intermediate moving handrail 40 The circular movement is performed at the same speed as that of the steps 2 in the intermediate slope C.

In addition, the upper moving handrail 36 and the lower moving handrail 38 each have a horizontal portion 41 extending horizontally. The middle moving handrail 40 has a middle linear portion 42 extending parallel to the middle inclined portion C. As shown in FIG. The boundary between the upper handrail device 35 and the lower handrail device 37 and the middle handrail device 39 is located near the intersection point F of the following two straight lines, which is the intersection point of the straight line extending the horizontal portion 41 and the straight line extending the middle straight portion 42 .

Next, the operation will be described. The speed of the steps 2 is changed by changing the distance between the driving roller shafts 10 of the adjacent steps 2 . That is, in the upper landing portion A and the lower landing portion E where passengers board and disembark, the interval between the driving roller shafts 10 is minimized, and the step 2 moves at a low speed. In addition, in the intermediate inclined portion C, the distance between the driving roller shafts 10 is maximized, and the steps 2 move at a high speed. In addition, in the upper curved portion B and the lower curved portion D, the distance between the driving roller shafts 10 is changed, and the step 2 travels with acceleration and deceleration.

The 1st, 2nd, 4th and 5th connecting rods 15, 16, 18, 19 constitute the so-called zoom-type 4-joint linkage mechanism, and the 3rd connecting rod 17 is used as the axis of symmetry, which can either increase or decrease The angle formed by the first and second links 15 and 16. Accordingly, the distance between the driving roller shafts 10 connected to the first and second links 15 and 16 can be changed.

In the landing portions A and E of FIG. 1 , the distance between the driving roller shafts 10 of adjacent steps 2 is minimized. If from this state, narrow the interval between driving guide rail 5 and auxiliary guide rail 7, then link mechanism 14 carries out the action identical with the action of umbrella stand group when opening umbrella, makes the driving roller shaft 10 of adjacent step 2 The interval expands.

In the intermediate inclined portion C in FIG. 1 , the distance between the driving rail 5 and the auxiliary rail 7 is the smallest, and the distance between the driving roller shafts 10 of the adjacent steps 2 is the largest. Therefore, in this region, the velocity of step 2 is maximum. In addition, in this state, the first and second links 15 and 16 are arranged approximately on a straight line.

In such an inclined portion high-speed escalator, because it is synchronous with the moving speed of the steps 2, the upper moving handrail 36 and the lower moving handrail 38 run at a low speed, and the middle moving handrail 40 runs at a high speed, so the moving handrails 36, 38, The difference between the moving speed of the step 40 and the moving speed of the step 2 also makes it possible to easily hold the moving handrails 36, 38, 40 when the step 2 changes speed.

In addition, by making the moving speed of the upper moving handrail 36 and the lower moving handrail 38 the same as the moving speed of the steps 2 in the upper landing A and the lower landing E, passengers can board and disembark on the upper side. Stable boarding and disembarkation at the gate A and the lower landing gate E.

In Embodiment 1, the upper armrest device 35 , the boundary between the lower armrest device 37 and the middle armrest device 39 are located near the intersection point F of the straight line extending the horizontal portion 41 and the straight line extending the middle straight portion 42 . Therefore, for example, in FIG. 2, when the forward direction of the upper moving armrest 36 or the middle moving armrest 40 is changed, the grip of the armrest can be changed. Therefore, it is easy to grasp the timing of armrest switching, and the grip switching operation can be performed smoothly. Although the upper curved portion B is shown in FIG. 2 , the same structure can be adopted for the lower curved portion D as well.

In addition, it is not necessary to make the moving speed of the upper moving handrail 36 and the lower moving handrail 38 exactly the same as the moving speed of the steps 2 in the upper landing A and the lower landing E, and for example, 1 may be taken as An intermediate speed between the moving speed of the steps 2 in the upper landing portion A and the lower landing portion E and the moving speed of the steps 2 in the intermediate inclined portion C. Accordingly, the difference between the moving speed of the upper moving handrail 36 and the lower moving handrail 38 and the moving speed of the middle moving handrail 40 can be reduced.

Embodiment 2

Next, Fig. 3 is a side view showing main parts of an inclined high-speed escalator according to Embodiment 2 of the present invention. In Embodiment 2, the boundary between the upper armrest device 35 and the middle armrest device 39 is located near the boundary between the upper curved portion B and the middle inclined portion C. As shown in FIG.

In addition, although not shown in figure, the boundary of the lower armrest device 37 and the middle armrest device 39 is located in the vicinity of the boundary of the lower curved part D and the middle inclined part C. Other configurations are the same as those in Embodiment 1.

In such an inclined part high-speed escalator, it is only necessary not to change the grip of the handrail in the upper curved part B and the lower curved part D that generate acceleration and deceleration to the step 2 . That is, passengers can stably move the handrail near the boundary between the upper landing A and the intermediate slope C, or the boundary between the lower landing E and the middle slope C, where the speed of the steps 2 is constant. Change grip.

In addition, in the upper curved portion B and the lower curved portion D, there is a difference in the amount of movement between the step 2 and the upper moving handrail 36. When the speed ratio (gear ratio) between the inclined parts C is about 1.5 to 2, the difference in the amount of movement between the step 2 and the upper moving handrail 36 within the range of the upper curved part B or the lower curved part D It is about 200-300mm, which is within the allowable range.

In addition, in Embodiment 2, both the upper armrest device 35 and the lower armrest device 37 extend to the vicinity of the middle inclined part C, and only one of them may be used.

Embodiment 3

Next, Fig. 4 is a side view showing main parts of an inclined high-speed escalator according to Embodiment 3 of the present invention. In this example, the boundary between the upper handrail device 35 and the middle handrail device 39 is located near the boundary between the upper curved portion B and the upper landing portion A. As shown in FIG. In addition, not shown, the boundary between the lower handrail device 37 and the middle handrail device 39 is located near the boundary between the lower curved part D and the lower landing part E, and the other configurations are the same as those in the first embodiment.

In such an inclined part high-speed escalator, it is only necessary not to change the grip of the handrail in the upper curved part B and the lower curved part D that generate acceleration and deceleration to the step 2 . That is, the passenger can pass the upper curved part B and the lower curved part D in the state of holding the middle moving handrail 40, near the boundary between the upper curved part B and the upper side entrance A, or between the lower curved part D and the lower part A. In the vicinity of the boundary of the side landing E, the grip of the handrail can be changed stably. In addition, the difference in the amount of movement between the intermediate movement handrail 40 and the step 2 in the upper curved portion B or the lower curved portion D is within an allowable range.

In addition, in Embodiment 3, both ends of the middle handrail device 39 are extended to the vicinity of the landing, but only either end may be extended to the vicinity of the landing.

Embodiment 4

Next, FIG. 5 is a side view showing main parts of an inclined high-speed escalator according to Embodiment 4 of the present invention, and FIG. 6 is a plan view showing main parts of FIG. 5 . In this example, the upper armrest device 35 and the middle armrest device 39 extend to the upper curved portion B, respectively. Therefore, the arrangement range of the middle armrest device 39 in the longitudinal direction of the main frame 1 partially overlaps with the arrangement range of the upper armrest device 35 in the upper curved portion B. In the region where the arrangement ranges overlap, the middle handrail device 39 is arranged outside the upper handrail device 35 in the width direction of the step 2 (the vertical direction in FIG. 6 ). In other words, the upper end portion of the middle handrail device 39 overlaps the upper handrail device 35 in the width direction of the step 2 .

In such an inclined portion high-speed escalator, since the upper handrail device 35 and the middle handrail device 39 are partially parallel, the time required for handrail changing (the time when the handrail is not held) can be greatly shortened. In addition, passengers can also choose the timing to switch the armrest in the area where the configuration range overlaps. Furthermore, the grip can be changed before the difference in the amount of movement between the moving handrails 36, 40 and the step 2 increases.

In addition, in Embodiment 4, the upper armrest device 35 and the middle armrest device 39 are partially overlapped, but the lower armrest device 37 and the middle armrest device 39 may be partially overlapped.

In addition, in Embodiment 4, the middle handrail device 39 is disposed outside the upper handrail device 35, but the upper handrail device 35 and the lower handrail device 37 may be arranged outside the middle handrail device 39 in the width direction of the step 2. .

Furthermore, in Embodiment 4, the distance between the intermediate movement handrails 40 in the width direction of the steps 2 is partially enlarged, but the intervals may be enlarged over the entire intermediate movement handrails 40 . In addition, when the upper handrail device 35 and the lower handrail device 37 are arranged outside the middle handrail device 39, the distance between the upper moving handrail 36 and the lower moving handrail 38 may be larger than the distance between the middle moving handrail 40.

Furthermore, the boundary between the upper armrest device 35 and the middle armrest device 39 and the boundary between the lower armrest device 37 and the middle armrest device 39 may be separately set, and the setting methods of Embodiments 1 to 4 can be freely combined.

Embodiment 5

Next, Fig. 7 is a schematic side view showing an inclined portion high-speed escalator according to Embodiment 5 of the present invention. In the drawing, a first sprocket 52 that rotates integrally with the drive shaft 51 is attached to the drive shaft 51 of the drive unit 3 . In the vicinity of the upper curved portion of the main frame 1, second to fourth sprockets 53 to 55 are provided.

The second to fourth sprockets 53 to 55 are provided coaxially and rotate integrally. The diameter of the third sprocket 54 is larger than that of the second sprocket 53 , and the diameter of the fourth sprocket 55 is larger than that of the third sprocket 54 .

An endless first drive chain 56 is wound between the first sprocket 52 and the second sprocket 53 . Through the first drive chain 56, the rotation of the first sprocket 52 is transmitted to the second to fourth sprockets 53-55.

In the vicinity of the lower curved portion of the main frame 1, fifth and sixth sprockets 57 and 58 are provided. The fifth and sixth sprockets 57 and 58 are provided coaxially and rotate integrally. The diameter of the sixth sprocket 58 is larger than that of the fifth sprocket 57 .

An endless second drive chain 59 is wound between the first sprocket 52 and the fifth sprocket 57 . The rotation of the first sprocket 52 is transmitted to the fifth and sixth sprockets 57 and 58 via the second drive chain 59 .

The upper handrail device 35 has a pair of upper driving rollers 60 and 61 , and the pair of upper driving rollers 60 and 61 are arranged to sandwich the circuit portion of the upper moving handrail 36 . The rotation of the third sprocket 54 is transmitted to the upper driving roller 60 by the endless upper transmission chain 62 . The upper moving handrail 36 is circularly moved by the rotation of the upper driving roller 60 .

The intermediate handrail device 39 has a pair of intermediate driving rollers 63 and 64 which are arranged to sandwich the circuit portion of the intermediate moving handrail 40 . The rotation of the fourth sprocket 55 is transmitted to the intermediate drive roller 63 by the endless intermediate transmission chain 65 . The intermediate moving handrail 40 is circularly moved by the rotation of the intermediate driving roller 63 . According to the ratio of the diameter of the third sprocket 54 to the diameter of the fourth sprocket 55, the speed ratio between the upper moving handrail 36 and the middle moving handrail 40 is set.

The lower handrail device 37 has a pair of lower driving rollers 66 , 67 arranged to sandwich the circuit portion of the lower moving handrail 38 . The rotation of the sixth sprocket 58 is transmitted to the lower driving roller 66 through the endless lower transmission chain 68 . The lower moving handrail 38 is circularly moved by the rotation of the lower driving roller 66 .

In addition, the diameters of the first, second, and fifth sprockets 52, 53, and 57 are equal to each other, and the diameters of the third and sixth sprockets 54, 58 are equal to each other. Accordingly, the lower moving handrail 38 moves at the same speed as the upper moving handrail 36 .

In such an inclined portion high-speed escalator, the upper moving handrail 36, the lower moving handrail 38, and the intermediate moving handrail 40 are cyclically moved by the drive unit 3 that drives the step 2 (FIG. 1). Therefore, only one drive unit 3 is required, and the cost can be reduced.

In addition, by appropriately setting the diameters of the first to sixth sprockets 52, 53, 54, 55, 57, and 58, the upper moving handrail 36 and the steps 2 at the upper side landing can be moved at the same speed and in the middle. The handrail 40 travels at the same speed as the step 2 at the middle inclined portion, and the lower moving handrail 38 travels at the same speed as the step 2 at the lower landing portion.

In addition, in Embodiment 5, power transmission is performed by a combination of a chain and a sprocket, but other power transmission mechanisms such as a combination of a steel cable or a belt and a pulley may also be used.

In addition, in Embodiment 5, the driving means 3 for driving the step 2 is used to drive the moving handrails 36, 38, 40, but a driving source for moving the handrails 36, 38, 40 other than the driving means 3 may be used. In this case, the moving handrails 36, 38, 40 may be driven by independent drive sources, or may be driven by a common drive source.

Furthermore, in Embodiments 1 to 5, three handrail devices 35, 37, 39 are used, and it is also possible to use more than 4 handrail devices, or at least one handrail device of the handrail devices 35, 37, 39 Split into multiple.

Claims (8)

1. A high-speed escalator at an inclined portion, characterized in that it has a main frame, a circulation path, a plurality of steps, an upper handrail device, a lower handrail device and an intermediate handrail device, The circulation path is arranged on the above-mentioned main frame, and has: an upper side landing part, a lower side landing part, an intermediate inclined part between the above-mentioned upper side landing part and the above-mentioned lower side landing part, a an upper curved portion between the upper landing portion and the middle inclined portion, and a lower curved portion between the lower landing portion and the middle inclined portion; The plurality of steps are connected in a ring shape, and can circulate and move along the above-mentioned circulation path; The upper handrail device has a ring-shaped upper moving handrail that circulates, and is arranged on the above-mentioned main frame near the above-mentioned upper side landing; The lower handrail device has a circular moving lower handrail, and is arranged on the above-mentioned main frame in the vicinity of the above-mentioned lower landing; The middle handrail device has a circular moving middle handrail, which is arranged on the above-mentioned main frame between the above-mentioned upper handrail device and the above-mentioned lower handrail device; The moving speed of the steps in the middle inclined portion is set to be faster than the moving speeds of the steps in the upper landing portion and the lower landing portion, so that the upper moving handrail and the The lower moving handrail moves circularly at a speed corresponding to the moving speed of the steps in the upper landing section and the lower landing section, so that the middle moving handrail and the above-mentioned intermediate inclined section The moving speed of the steps corresponds to that of the above-mentioned upper moving handrail and the above-mentioned lower moving handrail and circulates at a higher speed. 2. The inclined portion high-speed escalator according to claim 1, wherein the upper moving handrail and the lower moving handrail each have a horizontal portion extending horizontally, and the middle moving handrail has a horizontal portion extending parallel to the middle inclined portion. The middle straight part of the above-mentioned upper handrail device and the boundary between the above-mentioned lower handrail device and the above-mentioned middle handrail device are located near the intersection of the following two straight lines, namely the straight line extending the above-mentioned horizontal part and the straight line extending the above-mentioned middle straight part. 3. The high-speed escalator at an inclined portion according to claim 1, wherein a boundary between the upper handrail device and the intermediate handrail device is located near a boundary between the upper curved portion and the intermediate inclined portion. 4. The high-speed escalator at an inclined portion according to claim 1, wherein the boundary between the lower handrail device and the intermediate handrail device is located near the boundary between the lower curved portion and the intermediate inclined portion. 5. The high-speed escalator at an inclined portion according to claim 1, wherein a boundary between the upper handrail device and the middle handrail device is located near a boundary between the upper curved portion and the upper landing. 6. The high-speed escalator at an inclined portion according to claim 1, wherein a boundary between the lower handrail device and the middle handrail device is located near a boundary between the lower curved portion and the lower landing. 7. The inclined portion high-speed escalator according to claim 1, characterized in that, the arrangement range of the above-mentioned intermediate handrail device in the longitudinal direction of the above-mentioned main frame is the same as the arrangement range of at least any one of the above-mentioned upper handrail device and the above-mentioned lower handrail device. The ranges partially overlap. 8. The high-speed escalator at an inclined portion according to claim 1, wherein the upper moving handrail, the lower moving handrail, and the middle moving handrail are cyclically moved by a driving unit that drives the steps.

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