JP2009184824A - Inclined part high-speed escalator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-speed escalator having a simple structure and operated at low speed at entrances and at high speed in an intermediate inclined part. <P>SOLUTION: In the escalator circulated by connecting a large number of drive roller shafts 10a of steps 1 to a pair of endless step roller chains 4, the number of links of the step roller chain 4 between the drive roller shafts 10a fixed to the forward side of the steps 1 adjacent to each other is set to be two. An auxiliary roller 11 which is not brought into contact with the step 1 is provided in one link in the intermediate position, and a following roller 12 fixed to the rearward side of the step 1 is provided. In the entrance part, the auxiliary roller 11 is guided downwardly along an auxiliary rail 11b, and a distance between drive rollers 10 adjacent to each other is reduced to decline the moving speed. In the intermediate inclined part, the drive rollers 10 are arranged on one straight line to maximize the distance between the adjacent drive rollers 10, to maximize the moving speed of the steps 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to an inclined portion high-speed escalator in which a moving speed of a step in an intermediate inclined portion is faster than a moving speed of a step in an upper / lower entrance / exit.

In recent years, many escalators having a long moving distance have been installed. In order to improve the transportation efficiency and the convenience of passengers by increasing the moving speed of the steps, an escalator having a slow structure near the entrance / exit and a fast structure at the intermediate slope has been proposed.

The ramp high-speed escalator in which the moving speed of the steps in the intermediate inclined section is faster than the moving speed in the vicinity of the entrance / exit is, for example, applied as an escalator with a long moving distance installed in a subway station building or the like. There is expected. Further, even in a conventional escalator having a short moving distance, there is a demand for an escalator that is easy to get on and off corresponding to an aging society that is late in the vicinity of the entrance / exit and has a conventional speed at the intermediate inclined portion.

For example, as an inclined portion high-speed escalator, a driving roller fixed to a preceding step and a driving roller fixed to a subsequent step are connected using a bent first link and a second link, An auxiliary roller is attached to the tip of the first link, and the movement of the driving roller is guided by the driving roller rail, and the movement of the auxiliary roller is guided by the auxiliary roller rail, respectively. (For example, see Patent Document 1)

In such an inclined portion high-speed escalator, the track of the auxiliary roller rail is designed to be separated from the drive rail in the vicinity of the entrance / exit, and the auxiliary roller is configured by a plurality of link mechanisms that change the interval between the adjacent drive roller shafts. It is designed to be displaced in a mountain shape with the apex at the top. The distance between the driving roller fixed to the preceding step and the driving roller of the succeeding step is reduced according to the change in the shape formed by the link mechanism, and the moving speed of the step is compared with the moving speed of the intermediate inclined portion. It's getting slower.
JP2003-212464A

However, in the technology configured as described above, a complicated link mechanism is provided to adjust the distance between adjacent steps in order to slow down the moving speed of the steps in the vicinity of the entrance and exit. The part shape will also become smaller, and accuracy problems and the question of durability due to frequent opening and closing of the link mechanism may arise. There is also a problem of strength against a load in a place such as a station building where the moving distance is long and crowded in a time zone.

The present invention has been made to solve the above-mentioned problems, and provides a high-speed escalator with a simple structure, in which the moving speed of the steps is slow at the entrance and exit, and fast at the intermediate slope. It is in.

In an escalator that connects and circulates a large number of step drive roller shafts with a pair of endless step roller chains, a drive roller shaft fixed to the front side of the step and a step roller chain pivotally supported by the drive roller shaft Chain link and pin roller, a rotatable drive roller supported on the drive roller shaft on the outside, a drive rail for guiding the drive roller, a follow roller shaft fixed on the rear side of the step, and a follow roller shaft A rotatable follower roller supported by a shaft and a follower rail that guides the follower roller, and the chain pitch between the drive roller shafts adjacent to each other in the step roller chain is two links. On the step side of the link, there is an auxiliary roller that rotatably supports an auxiliary roller shaft that is not in contact with the step, and has an auxiliary rail that guides the auxiliary roller. By changing the distance between the rail and the auxiliary rail is intended to vary the distance between adjacent drive roller shaft with each other.

When the step is viewed from the side at the intermediate inclined portion, the riser is inclined toward the adjacent step, and the angle formed between the step plate and the riser becomes an obtuse angle.

At the place where the distance between the drive rail and the auxiliary rail is changed at the upper and lower entrances and exits, the drive roller and the auxiliary roller are supported by the drive rail and the auxiliary rail from above and below, with a dimension that allows for free rotation. Guided.

According to the first invention, it is possible to increase the speed of the intermediate inclined portion with a simple structure, and it is possible to provide a durable escalator with less noise and high traction strength.

In addition, according to the second invention, by making the angle formed by the tread and the riser an obtuse angle, the intermediate inclined portion can be speeded up and the distance from the passengers moving back and forth is also reduced and the feeling of pressure is reduced.

In the third aspect of the invention, the rollers can be supported and guided stably with respect to the displacement of the step roller chain.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the vicinity of the upper entrance / exit part of the inclined part high-speed escalator (the upper side of the drive rail and auxiliary rail is omitted in order to avoid complication of the figure). FIG. 2 is a layout diagram of the step roller chain, each roller, and each rail in the vicinity of the lower entrance / exit portion (the appearance of the step roller chain is indicated by the center line because it becomes complicated). 3 is a step side view of the forward intermediate slope portion, FIG. 4 is a partial cross-sectional view thereof, FIG. 5 is a partial plan view thereof, and FIG. 6 is a partial cross-sectional view of the step of the entrance / exit portion.

1 and 2, the main frame 30 is provided with a large number of steps 1 connected endlessly by a step roller chain 4. The main frame 30 includes a drive sprocket 20, a drive device (omitted), a passive sprocket 21, a pair of drive rails 10b that form a circulation path for the step 1, a pair of follower rails 12b for controlling the posture of the step, and adjacent to the main frame 30. A pair of auxiliary rails 11b are provided for changing the interval between the steps 1 to be operated.

The circulation path of the step 1 has an outward path section, a return path section, an upper inversion section, and a lower inversion section. FIG. 1 shows a forward intermediate slope A, a forward curved portion B, an upper entrance / exit portion C, an upper inversion portion D, a return upper horizontal portion E, a return upper curved portion F, and a return intermediate slope G. ing.

3 and 4, the step 1 includes a riser 2 inclined from one end of the step plate 1a to the adjacent step 1, and an angle formed by the step plate 1a and the riser 2 as an obtuse angle, and a bracket 3 for fixing the riser 2 and the step plate 1a. A driving roller shaft 10a fixed to the front side of the bracket 3, a chain link 4a and a pin roller 4b of a step roller chain 4 supported on the driving roller shaft 10a, and supported on the driving roller shaft 10a on the outside thereof. The follower roller shaft 12a is fixed to the rear side of the bracket 3 and the follower roller 12 is rotatably supported by the follower roller shaft 12a. The drive roller 10 is guided by the drive rail 10b to roll, and the follower roller 12 is guided by the follower rail 12b to roll.

The chain pitch between the adjacent drive roller shafts 10a of the step roller chain 4 is set to two links, and the link roller 4b and the chain link 4a in the middle are rotated by the auxiliary roller shaft 11a that is not in contact with the step 1 on the step 1 side. A free auxiliary roller 11 is pivotally supported. That is, the pair of step roller chains 4 is pivotally supported in the order of the drive roller shaft 10a and the auxiliary roller shaft 11a for each link. The auxiliary roller 11 rolls while being guided by the auxiliary rail 11b.

1, 2, and 3, the straight line connecting the centers of the driving roller 10, auxiliary roller 11, and follower roller 12 of the step 1 is the center of the step roller chain 4 when the forward intermediate slope A is viewed from the side. It is the same as the line.

The case where FIG. In the forward intermediate slope A, the multiple steps 1 are stepped and have a maximum kicking height, the distance between the drive roller shafts 10a of the adjacent steps 1 is also maximum, and the moving speed of the steps 1 is also maximum. At this time, the straight line connecting the center line of the step roller chain 4 and the centers of the drive roller 10, the auxiliary roller 11, and the follow-up roller 12 becomes the same, and the driving force acts on a straight line. The same position is also desirable when each rail is fixed to the main frame 30.

When the driving roller 10 of the step 1 enters the upward curve B on the outward path, the follower rail 12 leaves the driving rail 10b and moves downward in order to keep the tread plate 1a of the step 1 horizontal. At this time, the auxiliary rail 11b also moves away from the drive rail 10b while maintaining a margin that prevents the adjacent steps 1 from contacting each other. Conversely, since the dimension between the links of the step roller chain 4 is determined, the auxiliary rail 11b and the follow-up rail 12b are arranged at positions where the adjacent steps do not contact each other while maintaining a margin. Further, the distance between the driving roller shafts 10a of the step roller chain 4 is also reduced, and the moving speed of the step 1 is gradually decreased. The driving roller 10 and the auxiliary roller 11 from the upper curved portion B where the step roller chain 4 starts to be displaced are dimensioned with a free margin, and are supported and guided by the driving rail 10b and the auxiliary rail 11b from above and below. As the step 1 approaches the upper entrance / exit part C, the drive rail 10b and the auxiliary rail 11b are further separated from each other, and the distance between the adjacent drive roller shafts 10a of the step roller chain 4 is reduced, so that the moving speed of the step 1 is further decreased.

In the step 1 that has shifted to the upper entrance / exit C, the distance between the adjacent drive roller shafts 10a of the step roller chain 4 is also minimized, and the moving speed of the step 1 is also minimized. FIG. 6 is a partial sectional view thereof. The step 1 having the minimum moving speed increases the distance between the drive roller shafts adjacent to each other in the step roller chain 4 as the auxiliary rail 11b moves upward and the distance from the drive rail 10b decreases. The distance between the step plates 1a of the adjacent steps 1 increases gradually as the speed increases. At this time, the follower roller 12 heads to the upper reversing portion D while maintaining the level of the tread 1a of the step 1.

The step 1 that has shifted to the upper reversing part D is reversed by the drive sprocket 20. The number of working teeth of the drive sprocket 20 is 7.5, considering wear resistance. At this time, the center of the inner rail of the tracking rail 12b is brought closer to the drive shaft 20a so that the step 1 can be smoothly reversed. As a result, even if the position of the driving roller shaft 10a of the step 1 moves below the horizontal line at the center of the driving sprocket 20a, the follower roller 12 of the step 1 is in a position toward the lower side, so that the reversal is not delayed.

The step 1 that has been reversed by the upper reversing part D moves the return side upper horizontal part E, the return side upper curved part F, and the return side intermediate inclined part G with the tread 1a facing downward.

FIG. 2 is a layout diagram of the step roller chain 4, the rollers, and the rails in the vicinity of the lower entrance / exit portion. The return side intermediate inclined portion G, the return side lower curved portion H, the return side lower horizontal portion I, and the lower inversion portion J. , The lower entrance / exit part K, the outward lower curve part L, and the outward intermediate slope part A are shown.

The step 1 that has shifted from the return-side intermediate inclined portion G to the return-side lower curved portion H and the return-side lower horizontal portion I heads toward the lower inversion portion J with the tread plate 1a facing downward. As for the moving speed on the return path side of the step 1, the distance between the driving roller shafts 10 a of the step roller chain 4 is maximized and the moving speed of the step 1 is also maximized in the linear portion.

The step 1 that has shifted to the lower inversion portion J is inverted upward by the passive sprocket 21. At this time, the center of the inner rail of the tracking rail 12b is moved away from the passive shaft 21a so that the step 1 can be smoothly reversed.

The step 1 that has shifted to the lower entrance / exit K is configured such that when the auxiliary rail 11b reaches a position where the auxiliary rail 11b is inclined downward from the horizontal portion and the drive rail 10b and the auxiliary rail 11b start to move away from each other, the step roller chains 4 drive adjacent to each other. The distance between the roller shafts 10a is also gradually reduced, and the moving speed of the step 1 is also reduced. At the lower entrance / exit K, the position where the auxiliary roller 11 has shifted from the inclined section to the horizontal section and the section where the driving roller shaft 10a has reached the lower curved portion of the forward path are the minimum distance between the driving roller shaft 10a of the step roller chain 4. In this section, the moving speed of the step 1 is also minimized.

The step 1 that has shifted to the forward path lower curved portion L gradually becomes narrower between the drive rail 10b and the auxiliary rail 11b, and the distance between the drive roller shafts 10a adjacent to each other in the step roller chain 4 is also increased. The speed is also increased, and the auxiliary roller 11 reaches the forward-side intermediate inclined portion A, and the moving speed becomes maximum. The section in which the step roller chain 4 is displaced near the lower entrance / exit is a size with a margin for allowing the drive roller 10 and the auxiliary roller 11 to freely rotate, and is supported and guided by the drive rail 10b and the auxiliary rail 11b from above and below. As described above, the step 1 circulates slowly in the vicinity of the upper and lower entrances and exits fast in other places.

Next, the moving speed of the step 1 will be described with reference to FIG. The length of the step board 1a of the step 1 is set to S including a margin that does not come into contact with the riser 2 of the preceding step 1, the horizontal portion of the riser 2 inclined to the subsequent step 1 side is R, and the rise of the step 1 is Q If the chain pitch of the step roller chain 4 is P and the inclination angle of the escalator is 30 degrees, then P = Q and R + S = √3P.
If the chain pitch P is 250 and the tread 1a length S is 360, the slope R is 73, the kick-up Q is 250, the distance between the drive roller shafts 10a of the linear step roller chain 4 is 500, and the step roller at the entrance / exit The distance between the drive roller shafts 10a of the chain 4 is 360, and the speed ratio is 1.388 at the intermediate inclined portion when the entrance / exit portion is 1, and 0.72 at the entrance / exit portion when the intermediate inclined portion is 1. . This speed ratio is not excessive and is gradually accelerated and gradually decelerated, so there is no sense of incongruity with a conventional constant speed escalator. Even if the escalator is stopped or a passenger walking, the riser height is 250 mm and the riser 2 is further inclined in the direction of travel. You can walk with heart.

The inclined portion high-speed escalator configured as described above can provide a safe and secure escalator by speeding up the intermediate inclined portion with a simple structure without greatly changing the structure of the conventional constant-speed escalator.

FIG. 3 is a side view showing the vicinity of an upper entrance / exit part of an inclined part high-speed escalator. Is a layout diagram of the step roller chain, each roller, and each rail near the lower entrance / exit of the inclined portion high-speed escalator (the appearance of the step roller chain is indicated by the center line because it becomes complicated). FIG. 4 is a side view of a step of an intermediate inclined portion on the forward path side of the inclined portion high-speed escalator. FIG. 3 is a partial cross-sectional view of a step of an intermediate inclined portion on the forward path side of the inclined portion high-speed escalator. FIG. 4 is a partial plan view of a step of an intermediate inclined portion on the forward path side of the inclined portion high-speed escalator. FIG. 4 is a partial cross-sectional view of a step at the entrance / exit of an inclined portion high-speed escalator.

Explanation of symbols

1 step 1a step plate 2 riser 3 bracket 4 step roller chain 4a chain link 4b pin roller 10 drive roller 10a drive roller shaft 10b drive rail 11 auxiliary roller 11a auxiliary roller shaft 11b auxiliary rail 12 follow roller 12a follow roller shaft 12b follow rail 20 drive sprocket 20a drive shaft 21 passive sprocket 21a passive shaft 30 main frame

Claims (3)

In an escalator that circulates and moves a plurality of step drive roller shafts by a pair of endless step roller chains, a drive roller shaft fixed to the front side of the step, and the steps supported by the drive roller shaft A chain link and a pin roller of the roller chain, a rotatable driving roller supported on the driving roller shaft on the outer side, a driving rail for guiding the driving roller, and a tracking roller shaft fixed to the rear side of the step; A rotatable follower roller supported by the follower roller shaft, a follower rail for guiding the follower roller, and a chain pitch between the drive roller shafts adjacent to each other in the step roller chain is two links, A pin roller in one intermediate link, an auxiliary roller that is rotatable on an auxiliary roller shaft that is not in contact with the step, on the side of the step on the chain link. An inclined high-speed escalator having an auxiliary rail for guiding the auxiliary roller, and changing a distance between the drive roller shafts adjacent to each other by changing a distance between the drive rail and the auxiliary rail. . The slope according to claim 1, wherein when the step is viewed from the side, the riser is inclined toward the adjacent step, and an angle formed between the step plate and the riser is an obtuse angle. High-speed escalator. At the place where the distance between the drive rail and the auxiliary rail is changed in the upper and lower entrance / exit portions, the drive rail and the auxiliary roller are dimensioned with a margin to allow free rotation, and the drive rail from above and below. 2. The inclined portion high-speed escalator according to claim 1, wherein the inclined high-speed escalator is supported and guided by the auxiliary rail.

Images