JP4396902B1 - Variable speed moving handrail device - Google Patents

Abstract

A variable speed that can be accelerated and decelerated steplessly without a shock, does not need to change the handrail from the entrance to the exit, and does not get caught in the mechanism even with soft gloves or cuffs. Provide a handrail device for moving walkways.
A pair of disk-shaped pulleys 10 that rotate about a horizontal axis that is provided on each of a boarding port side and an exit port side, and a telescopically stretched horizontally and endlessly between the disk-shaped pulleys. A link chain 20 and a link chain drive device 30 that drives the telescopic link chain in its length direction are provided. The stretchable link chain 20 is composed of a plurality of stretchable links 22 connected in series with each other. Each stretchable link 22 can be stretched in the length direction and has a driving roller 24. The link chain drive device 30 includes a spiral shaft 32 that is engaged with the drive roller 24 and continuously accelerates or decelerates by changing the pitch P between the drive rollers.
[Selection] Figure 2

Description

  The present invention relates to a handrail device for a variable speed moving sidewalk.

  "Variable speed moving sidewalk" is a moving sidewalk that moves at a low speed at the entrance, accelerates to maintain high speed in the middle, then decelerates and moves again at a low speed at the exit. . Such a variable speed moving walkway is a walking support facility used for access to stations and airports, on a pedestrian deck, etc., and can be used as a social infrastructure facility for an aged society such as building a friendly town.

  In such a variable-speed moving sidewalk, the pedestrian's handrail needs to be accelerated, at a constant speed, and decelerated similarly to the tread. Thus, Patent Literatures 1 to 4 have already been proposed as handrail devices for variable speed moving sidewalks.

Japanese Unexamined Patent Publication No. 2000-318961, “Acceleration / Deceleration Type Moving Handrail” Japanese Patent Laid-Open No. 2001-322788, “Variable Speed Moving Sidewalk and its Handrail” Japanese Patent Application Laid-Open No. 2003-63767, “Handrail Device for Moving Sidewalk” Japanese Patent Application Laid-Open No. 2003-226480, “Variable Speed Moving Handrail Device”

The conventional variable speed moving sidewalk handrail device described above (hereinafter simply referred to as “handrail device”) has many units with different speeds arranged in stages. For this reason, there is a problem that the handrail connecting portion where the speed changes suddenly receives a strong shock from the handrail as well as a shock from the tread. In order to avoid a shock from the handrail, the pedestrian needs to remove his hand from the handrail at the handrail transit section and change it, and the pedestrian needs to keep nervous while using the moving sidewalk.
In addition, when the handrail connecting portion does not release the handrail, there is a possibility that soft gloves and cuffs may be caught in the handrail connecting portion.

  The present invention has been developed to solve the above-described problems. That is, the object of the present invention is that acceleration and deceleration can be performed steplessly without shock, and there is no need to change the handrail from the entrance to the exit, and even a soft glove or cuff is caught in the mechanism part. It is an object of the present invention to provide a handrail device for a variable-speed moving sidewalk that has no fear.

According to the present invention, a pair of disk-shaped pulleys that rotate about a horizontal axis provided respectively on the entrance side and the exit side;
A telescopic link chain hung horizontally and endlessly between the disk-shaped pulleys;
A link chain drive device for driving the telescopic link chain in its length direction,
The stretchable link chain is composed of a plurality of stretchable links connected in series with each other, each stretchable link is stretchable in the length direction, and each has a drive roller,
The telescopic link includes a drive link and an auxiliary link having the same length that are rotatably connected to the drive roller, and an end bending bush that rotatably connects the adjacent drive link and the end of the auxiliary link. Become
The center of the auxiliary link is rotatably connected to the driving roller via a central bending bush,
The central bending bush and the end bending bush absorb the misalignment of the connecting portion between the drive link and the auxiliary link that occurs when the telescopic link bends in an arcuate shape along the outer periphery of the disk pulley. It has a sufficient amount of deflection
The link chain driving device is provided with a handrail device for a variable speed moving sidewalk, which is combined with a spiral shaft that engages with the driving roller to continuously change the pitch between the driving rollers.

  A horizontal plate connected to the outside of the end-flexing bush and connected so that the end-flexing portion can be expanded and contracted in a direction orthogonal to the running direction; and a round plate attached to both ends of the horizontal plate. It has a grip part via a bar mounting stay.

  Furthermore, it has a bellows that partitions between the grip portion and the telescopic link device and partitions the adjacent horizontal plates so as to be telescopic.

According to the configuration of the present invention, an elastic link chain is hung horizontally and endlessly between a pair of disk-shaped pulleys, and the elastic link chain is composed of a plurality of elastic links connected in series with each other, The telescopic links are extendable in the length direction, and each has a driving roller, and the link chain driving device is combined with a spiral shaft that engages with the driving roller and continuously changes the pitch between the driving rollers. So
By continuously changing the pitch between the driving rollers by the rotation of the spiral shaft, the traveling direction speed of the telescopic link chain can be accelerated and decelerated without any shock.

  Further, the pedestrian grips the grip part without receiving a strong shock by the structure including the horizontal plate connected to the outside of the end bending bush and orthogonal to the traveling direction and the grip part attached to the outside of the horizontal plate. The pedestrian can relieve tension significantly by moving from the entrance to the exit.

  Furthermore, the structure having the bellows that partitions the adjacent horizontal plates in a stretchable manner can eliminate the possibility of being caught in the mechanism portion (the stretchable link) even with soft gloves and cuffs.

  That is, according to the structure of this invention, since it is a continuous stepless transmission type, it is not necessary to hold a handrail (grip part), and it can move to an exit safely. In addition, the handrail can be made into a rod shape, so it is easy to use for people with weak lives and healthy people, and safety is improved.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In each figure, common portions are denoted by the same reference numerals, and redundant description is omitted.

FIG. 1 is an overall configuration diagram of a handrail device for a variable speed moving sidewalk according to the present invention.
In this figure, (A) is a plan view of a handrail device (hereinafter simply referred to as “handrail device”) of a variable speed moving sidewalk of the present invention, and (B) is a side view. In addition, as shown to FIG. 1 (A), the handrail apparatus of this invention is provided with a pair symmetrically on the both sides (upper and lower sides in the figure) of the variable speed type moving sidewalk 1. Only the handrail device on one side will be described below.

  As shown in FIGS. 1A and 1B, the handrail device of the present invention includes a pair of disk-shaped pulleys 10, an extendable link chain 20, and a link chain drive device 30.

  A pair of disk-shaped pulleys 10 are provided on the entrance side IN and the exit side OUT, respectively, and rotate around the horizontal shaft 12. Each of the disk-shaped pulleys 10 is rotationally driven by a rotational drive device (not shown) at the same peripheral speed as the moving speed (low speed) of the stepping surface of the variable speed moving sidewalk at the entrance and exit.

  The telescopic link chain 20 is hung endlessly between a pair of disk-shaped pulleys 10 and rotates horizontally between them.

  The link chain drive device 30 is located inside the telescopic link chain 20 and drives the telescopic link chain 20 in its length direction (that is, the traveling direction of a variable speed moving sidewalk: indicated by an arrow in the figure).

FIG. 2 is an enlarged view of the boarding port side of FIG. 1, (A) is a plan view, and (B) is a side view.
As shown in this figure, the telescopic link chain 20 includes a plurality of telescopic links 22 connected in series with each other. Each stretchable link 22 is configured to be stretchable in the length direction (traveling direction). Each telescopic link 22 has a driving roller 24.

As shown in this figure, the link chain drive device 30 has a spiral shaft 32 having an axial center parallel to the telescopic link chain 20 on the upper and lower sides inside the telescopic link chain 20. The same applies to the exit side OUT (not shown).
Each spiral shaft 32 has spiral fins whose axial pitch P continuously changes around the spiral shaft 32. The spiral fin engages with the driving roller 24 of the telescopic link 22 to continuously change the pitch P between the driving rollers in the traveling direction, thereby accelerating, decelerating, or traveling at high speed. Yes.
The axial pitch P of the spiral fins of the spiral shaft 32 is short on the entrance and exit sides and increases toward the intermediate portion (high speed side). Each spiral shaft 32 is rotated by a rotational drive device (not shown) so that the traveling direction speed of the telescopic link chain 20 is the same as the moving speed (low speed) of the walking surface of the variable speed moving sidewalk at the entrance and exit. Driven.

Note that an intermediate spiral shaft (not shown) having spiral fins having a constant axial pitch P may be provided in a high-speed region after acceleration of the telescopic link chain 20, and this may be rotationally driven.
By providing such an intermediate spiral shaft, necessary power can be applied even when the total length of the handrail device is long.

3 is a partially enlarged view (plan view) of the telescopic link chain of FIG. 2, and FIG. 4 is a cross-sectional view taken along line AA of FIG. In addition, this AA sectional drawing includes the cross section of the drive link 25, the auxiliary link 26, the center bending bush 27, and the end part bending bush 28. FIG.
3 and 4, the telescopic link 22 includes a drive link 25, an auxiliary link 26, a central bending bush 27, and an end bending bush 28.
The drive link 25 and the auxiliary link 26 have the same length, and have connecting portions (through holes) that can rotate at both end portions and the midpoint position (center) of both ends.
The midpoint position (center) of the drive link 25 is rotatably connected to the drive roller 24 via a drive shaft 24a. Further, the midpoint position (center) of the auxiliary link 26 is rotatably connected to a drive shaft 24 a at the center of the drive link 25 via a center bending bush 27.
Further, the end portions of the drive links 25 and the auxiliary links 26 of the adjacent telescopic links 22 are connected to each other by end bending bushes 28 so as to be alternately rotatable.

With this configuration, by rotating the spiral shaft 32, the travel direction pitch P of the drive roller 24 is continuously changed (increased) like P1, P2, P3, and P4 shown in FIG. Twenty running direction speeds (acceleration in this case) can be performed steplessly without shock.
On the exit side, contrary to FIG. 3, the travel direction pitch P of the drive roller 24 is continuously changed (decreased) like P4, P3, P2 and P1, so that the telescopic link chain 20 The traveling direction speed (in this case, deceleration) can be performed steplessly without shock.
Further, in the high speed region between the entrance and exit sides, the travel direction speed P of the telescopic link chain 20 (this speed is maintained by maintaining the travel direction pitch P of the drive roller 24 at the maximum pitch P _max after acceleration. If high speed) can be maintained without shock.

The plurality of telescopic links 22 constituting the telescopic link chain 20 have a characteristic that the driving direction pitches P of the drive rollers 24 are all the same unless an external force is applied. That is, when one shape of the adjacent elastic links 22 is determined, the same shape is obtained unless all the elastic links 22 connected thereto are applied with an external force.
In the present invention, while taking advantage of this characteristic, in the acceleration and deceleration regions, as described above, the running direction pitch P of the driving roller 24 is continuously changed like P1, P2, P3, and P4 shown in FIG. I am letting.
As a result, as shown in FIG. 3, a pitch error Δ due to acceleration or deceleration occurs between the ends of the drive link 25 and the auxiliary link 26 of the adjacent telescopic link 22.

  The center deflection bush 27 and the end deflection bush 28 are adapted to absorb this pitch error Δ. That is, the center deflection bush 27 and the end deflection bush 28 are sufficient to absorb the pitch error Δ between the end portions of the drive link 25 and the auxiliary link 26 when the telescopic link chain 20 is accelerated and decelerated by the spiral shaft 32. Has a deflection amount.

Moreover, the some expansion-contraction link 22 which comprises the expansion-contraction link chain 20 has the characteristic extended linearly on the same plane, unless external force is given. That is, when one shape of the adjacent elastic link 22 is determined, all the elastic links 22 connected thereto are linearly positioned on the same plane unless an external force is applied.
In the present invention, while taking advantage of this characteristic, the entrance side IN and the exit side OUT are endlessly hung between the pair of disk-shaped pulleys 10 as described above, and rotate endlessly between them. It is like that.

  In FIG. 4, the disk pulley 10 described above is composed of a pair of pulleys spaced apart in the axial direction of the rotary shaft 12, avoiding interference with the drive roller 24, and contacting the inner surface of the drive link 25. This is guided in an arc along the outer peripheral surface.

  Therefore, the center bending bush 27 and the end bending bush 28 are sufficiently bent to absorb the bending error of the connecting portion so that the expansion link 22 bends along the outer periphery of the disc-shaped pulley 10 in a state where the expansion link 22 is most contracted. Have quantity. The disk-shaped pulley 10 has a sufficiently large diameter.

In FIG. 4, the handrail device of the present invention further includes a horizontal plate 34 that is connected to the outside of the end bending bush 28 and orthogonal to the traveling direction, and a grip 36 that is attached to the outside of the horizontal plate 34.
The horizontal plate 34 is a rectangular plate and has elongated holes extending in the length direction at both ends thereof, and the central shafts 28a of the two end bending bushes 28 pass through the elongated holes.
With this configuration, it is possible to keep the horizontal plate 34 horizontal and always orthogonal to the traveling direction while allowing expansion and contraction of the expansion and contraction link 22.

In this example, the grip portion 36 is a horizontal round bar fixed to the upper portion of the horizontal plate 34, and a hand is placed between the adjacent grip portions 36 in the low speed region of the entrance side IN and the exit side OUT. It is provided every one to several pitches so as not to be pinched. The pitch may be skipped if necessary.
In addition, horizontal V rollers 37 are rotatably mounted below the center shaft 28a of the end bending bush 28, and the V-shaped guide rails 38 that engage with the V rollers 37 prevent the stretchable link chain 20 from hanging down. ing.
Note that the interval in the width direction of the V-shaped guide rail 38 is adapted to the width when the telescopic link 22 is expanded and contracted.

  Further, as shown in FIG. 2, the handrail device of the present invention is provided with a round bar mounting stay 41 between adjacent horizontal plates 34 so that soft gloves and cuffs are not caught in the mechanism part (expandable link). It has the bellows 40 which partitions the attached grip part 36 and an expansion-contraction link apparatus so that expansion-contraction is possible.

According to the above-described configuration of the present invention, the elastic link chain 20 is endlessly hung between the pair of disk-shaped pulleys 10, and the elastic link chain includes a plurality of elastic links connected in series with each other. Each telescopic link 22 is extendable in the length direction and has a driving roller 24. The link chain driving device 30 engages with the driving roller 24 to continuously change the pitch P between the driving rollers. Since it has a spiral shaft 32 to be
By continuously changing the pitch P between the drive rollers by the rotation of the spiral shaft 32, the traveling direction speed of the telescopic link chain 20 can be accelerated and decelerated without any shock.

  In addition, the pedestrian grips without receiving a strong shock by the configuration including the horizontal plate 34 that is connected to the outside of the end bending bush 28 and is always orthogonal to the traveling direction and the grip portion 36 attached to the outside of the horizontal plate 34. It is possible to move from the entrance to the exit while holding the part 36, and the pedestrian can relieve tension greatly.

  Furthermore, the structure having the bellows 40 that partitions the grip portion 36 and the expansion / contraction link device in an extendable manner between the adjacent horizontal plates 34 eliminates the possibility of being caught in the mechanism portion (expansion link) even if it is a soft glove or cuff. Can do.

  That is, according to the structure of this invention, since it is a continuous stepless transmission type, it is not necessary to hold a handrail (grip part), and it can move to an exit safely. In addition, the handrail can be made into a rod shape, so it is easy to use for people with weak lives and healthy people, and safety is improved.

  In addition, this invention is not limited to embodiment mentioned above, Of course, it can change variously in the range which does not deviate from the summary of this invention.

It is a whole block diagram of the handrail device of the variable speed type moving sidewalk of the present invention. It is an enlarged view by the side of the entrance in FIG. It is the elements on larger scale of the expansion-contraction link chain of FIG. It is AA sectional drawing of FIG.

Explanation of symbols

10 disc pulley, 12 horizontal axis,
20 telescopic link chain, 22 telescopic link,
24 drive roller, 24a drive shaft,
25 drive links, 26 auxiliary links,
27 central deflection bush, 28 end deflection bush,
28a central shaft, 30 link chain drive,
32 spiral shaft, 34 horizontal plate,
36 grip, 37 V roller,
38 V-shaped guide rail, 40 bellows, 41 stays

Claims (3)

A pair of disk-shaped pulleys that rotate about a horizontal axis provided respectively on the entrance side and the exit side;
A telescopic link chain hung horizontally and endlessly between the disk-shaped pulleys;
A link chain drive device for driving the telescopic link chain in its length direction,
The stretchable link chain is composed of a plurality of stretchable links connected in series with each other, each stretchable link is stretchable in the length direction, and each has a drive roller,
The telescopic link includes a drive link and an auxiliary link having the same length that are rotatably connected to the drive roller, and an end bending bush that rotatably connects the adjacent drive link and the end of the auxiliary link. Become
The center of the auxiliary link is rotatably connected to the driving roller via a central bending bush,
The central bending bush and the end bending bush absorb the misalignment of the connecting portion between the drive link and the auxiliary link that occurs when the telescopic link bends in an arcuate shape along the outer periphery of the disk pulley. It has a sufficient amount of deflection
The link chain drive device is combined with a spiral shaft that engages with the drive roller to continuously change the pitch between the drive rollers, and is a variable-speed moving handrail device.   A horizontal plate connected to the outside of the end bending bush and connected so as to extend and contract in the direction orthogonal to the traveling direction and perpendicular to the traveling direction, and a round bar attached to both ends of the horizontal plate The handrail device for a variable speed moving sidewalk according to claim 1, further comprising a grip portion via a stay.   The handrail device for a variable-speed moving sidewalk according to claim 2, further comprising a bellows for partitioning between the grip portion and the telescopic link device and for partitioning between the adjacent horizontal plates.

Images