JP3922526B2 - Passenger conveyor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a passenger conveyor including an escalator and an electric road, and more particularly to a passenger conveyor in which a cleat that is long in the traveling direction is formed on a tread surface of a tread.
[0002]
[Prior art]
In general, in a passenger conveyor such as an escalator, a tread that forms a tread on which a passenger rides is formed on the tread, for example, as disclosed in Japanese Patent Laid-Open No. 2001-89057. A tread cleat in which a large number of ridges and grooves are alternately formed in parallel at equal intervals is provided by corrugation. Further, end cleats formed by synthetic resin molding are provided over one or both of the front and rear end portions in the traveling direction of the tread surface. This end cleat is colored in a color with a high alerting effect such as yellow, and a synthetic resin material that is more elastic than aluminum or stainless steel is used.
[0003]
On the other hand, on both ends in the longitudinal direction of the passenger conveyor, a passenger floor for passengers to get on and off the tread is provided, and comb teeth are provided at the front of the passenger floor. The comb teeth are arranged so that the blade edges enter the concave grooves of both cleats, and conversely, both cleats enter toward the root of the comb teeth, and the comb teeth and both cleats are engaged with each other through a minute gap. Yes.
[0004]
[Problems to be solved by the invention]
In the tread of the above configuration, there is a known problem that a tread cleat is lost or deformed when foreign matter such as pebbles enters the meshing portion of the comb teeth and both cleats. Loss and deformation of the tread cleats involve the danger of causing the shoe tips and fingertips of the passenger to enter the comb teeth and colliding the tread cleats with the comb teeth. The solution is desired.
[0005]
The objective of this invention is providing the passenger conveyor which can reduce the defect | deletion and deformation | transformation of a tread cleat even if a foreign material penetrate | invades into a comb tooth.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a plurality of treads that are connected endlessly and circulate between the landing floors at both ends, and a large number of ridges and depressions that are long in the direction of travel in the width direction of these treads. A tread cleat having a groove; an end cleat having the same cross section as the tread cleat at an end portion in the traveling direction of the tread; and a comb tooth provided at a front end of the landing floor and meshing with the plurality of tread cleats with a gap. In the passenger conveyor, the gaps between the top, side and concave grooves of the end cleats and comb teeth were made smaller than the gaps between the top, side and concave grooves of the tread cleats and comb teeth .
[0007]
According to the above configuration, when a foreign object enters the comb teeth, the foreign object contacts the end cleat made of the synthetic resin before the foreign material contacts the tread cleat. As it passes through, the foreign material is crushed or compressed and does not damage the tread cleats.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0009]
1 is a conceptual side view of the vicinity of an upper part of an escalator showing an embodiment of the present invention, FIG. 2 is a rear view of a single tread shown in FIG. 1, and FIG. 3 is a sectional view taken along the line II in FIG. 4 is a configuration diagram in which a comb-teeth engaging portion is combined with an enlarged view of a main part of FIG. 3, and FIG. 5 is a cross-sectional view taken along the roll line of FIG.
[0010]
In the figure, an escalator 1 is installed from a lower floor (not shown) to an upper floor F, is connected to an endless tread chain 2 and moves, and a handrail that moves synchronously with the tread 3. It is a system that transports passengers with both four moving bodies. Further, both moving bodies are driven by the rotation of the driving vehicle 10 through the driving chain 9 from the driving machine 8 constituted by the motor 6 and the speed reducer 7 which are rotated by the electric command of the control device 5 in the machine room K. Each is guided by the guide rail 11 and the balustrade 12 and moves.
[0011]
The tread plate 3 is connected to the tread surface cleat 31 having at least a large number of convex strip portions 31A and concave groove portions 31B and the end of the tread surface cleat 31 and has a large number of convex strip portions 32A and concave groove portions 32B alternately. An end cleat 33 having a width W1 at the front end, and an end cleat 33 having a width W2 at the rear end, which is continuously connected to the end of the tread cleat 31 and has a plurality of ridges 33A and grooves 33B alternately; A side tread 34, 35 having a width W3 on both sides of the tread cleat 31 is provided to form a moving tread. The end cleats 32 and 33 and the side cleats 34 and 35 are colored for alerting, such as yellow, for the purpose of preventing the shoe tips from getting close to the gaps on the periphery of the tread 3. In addition, a synthetic resin material such as a polycarbonate resin having elasticity is used to make it easy to pull out a shoe tip in the event that the shoe tip is pinched. It is fixed in a detachable manner.
[0012]
Further, the tread 3 is connected at one end to the rear end portion 31C of the tread cleat 31 and includes a rear riser 36 having a convex curved portion 36A having a radius of curvature R and extending downward, and the tread cleat 31 and the rear riser 36. A substantially triangular support bracket 37 is provided on the left and right pair supported at both ends in the width direction. Further, on the front end portion 31D side of the tread cleat 31 and the lower end portion 36B side of the rear riser 36, that is, on the front end portion 37A and the lower end portion 37B portion of the support bracket 37, the front wheel 38A and the front wheel 38 supported by the main shaft 39A, respectively, A wheel 39 is provided, and the front wheel 38 and the rear wheel 39 move on the guide rail 11 and change direction on the lower side of the passenger floor 13 (FIG. 1).
[0013]
Further, the tread 3 has a large number of ridges 31A, 32A, 33A, a large number of concave grooves 31B, 32B, 33B, and side cleats 34, 35 constituting the tread surface fixed to the front end portion of the landing board 13. The comb teeth 14 are configured to mesh with a large number of tooth tips 14 </ b> A, and this mesh gap is minimized so that the shoe tips of the passengers, the fingertips of the fallen person, and the like do not enter there. The comb teeth 14 are also made of a synthetic resin material having good colorability and elasticity as well as the purpose of selecting the material of the end cleats 32 and the like. It is fixed.
[0014]
Here, the tread 3 which is the main body of the passenger conveyor of the present invention is to prevent foreign matter intrusion between the tread cleat 31 and the end cleats 32 and 33 disposed at the front and rear ends thereof and the comb teeth 14 of the passenger floor 13. Protective measures for the tread cleat 31 described below are taken.
[0015]
That is, as shown in an enlarged view in FIG. 4, a protrusion 32b formed on the protrusion 32A with respect to the gap S2 between the bottom 14B of the comb tooth 14 and the top surface 32a of the protrusion 32A of the end cleat 32. Only the protruding part of the minute is high and narrowed with the gap S1. That is, it is smaller than the gap between the top surface 31 a of the tread cleat 31 and the comb teeth 14.
[0016]
Therefore, when a foreign object X such as a pebbles enters the gap S1 between the stepping plate 3 and the comb tooth 14 that travels in the direction of the arrow M and passes through the comb tooth 14, the foreign object X is crushed by the protrusion 32b, or The protrusion 32b compresses the foreign matter X and allows the comb teeth 14 to pass through and drop into the machine room K. In this case, the influence caused by the foreign matter X does not reach the top surface 31a, and the tread cleat 31 itself is protected from external factors. If the size and hardness of the foreign matter X are such that the protrusion 32b, the end cleat 32, or the comb teeth 14 are destroyed, the end cleat 32 or the comb teeth 14 are replaced as consumables. However, even in this case, breakage or deformation of the tread cleat 31 that is difficult to restore due to the main body of the tread plate 3 is avoided.
[0017]
In the present invention, the gap S5 between the bottom surface 32c of the recessed groove portion 32B of the end cleat 32 and the tooth tip 14A of the comb tooth 14 is greater than the clearance S6 between the bottom surface 31b of the recessed groove portion 31B of the tread cleat 31 and the tooth tip 14A. It is getting smaller. Therefore, when a foreign substance Y such as a pebbles enters the gap S5 between the step board 3 and the comb tooth 14 which passes in the direction of the arrow M and passes through the comb tooth 14, the foreign substance Y is crushed by the bottom surface 32c, or the bottom surface The structure is such that the foreign matter Y is compressed by 31c, and the comb teeth 14 are passed through and dropped into the machine room K. In this case, the influence caused by the foreign matter Y does not reach the bottom surface 31b, and the tread surface cleat 31 itself is protected from external causes. If the size and hardness of the foreign matter Y is such that the bottom surface 32c or the comb teeth 14 are destroyed, the end cleat 32 or the comb teeth 14 are replaced as a consumable item. The tread cleat 31 that is difficult to restore due to the main body is not damaged or deformed.
[0018]
Further, in the present invention, as shown in FIG. 5, the gap S3 between the side portion 32d of the groove portion 32B of the end cleat 32 and the tooth tip side portion 14C of the comb tooth 14 is the side surface of the groove portion 31B of the tread cleat 31. It is smaller than the clearance S4 between 31c and the tooth tip side portion 14C. Therefore, when a foreign object Z such as a pebbles enters the gap S3 between the step board 3 that passes through the comb teeth 14 and passes through the comb teeth 14 and the tooth tips 14A of the comb teeth 14 in the direction of the arrow M (FIG. 4), the side surface 32d The structure is such that the foreign matter Z is crushed or the foreign matter Z is compressed by the side surface 32d, and the comb teeth 14 are passed through and dropped into the machine room K. In this case, the influence caused by the foreign matter Z does not reach the side surface 31c, and the tread surface cleat 31 itself is protected from external factors.
[0019]
If the size and hardness of the foreign material Z are such that the side surface 31c or the tooth tip 14A is destroyed, the end cleat 32 or the comb tooth 14 is replaced as a consumable item. The tread cleat 31 that is difficult to be restored by the main body 3 is not damaged or deformed.
[0020]
1 to 5, the tread cleat 31 is substantially protected by the end cleat 32 when the foreign matter X, Y and Z enters the comb teeth 14, and is made of metal, time, It is effective for maintenance in terms of cost and avoids damage and deformation that adversely affect passenger safety.
[0021]
The position and step relationship between the tread cleat 31 and the end cleat 32 described in FIG. 4 and FIG. 5 can be applied to the end cleat 33 as it is, and is equivalent to the above-described damage and deformation prevention effect. There is an effect.
[0022]
The construction of the above-mentioned tread board 3 according to the present invention can be applied as it is to a moving sidewalk tread board similar to the escalator 1, and is equally effective regardless of whether the tread cleats 31 and 41 are made of aluminum alloy or stainless steel. Can be demonstrated.
[0023]
Moreover, in this example, although the example which made small all the clearance gaps of a top surface, a side surface, and a bottom part was shown, if even one of them is implemented, it will be included in this invention.
[0024]
【The invention's effect】
As described above, the passenger conveyor according to the present invention can provide a configuration in which a tread cleat is less likely to be damaged when a foreign object enters the meshing portion between the tread plate and the comb teeth.
FIG. 1 is a conceptual side view of the vicinity of an upper part of an escalator showing an embodiment of the present invention.
FIG. 2 is a rear view of a single tread shown in FIG.
3 is a cross-sectional view taken along the line II in FIG.
4 is a configuration diagram in which a comb-teeth engaging portion is combined with an enlarged view of a main part of FIG. 3;
5 is a cross-sectional view taken along the line of FIG.
[Explanation of symbols]
1 Passenger conveyor (escalator)
2 tread chain 3 tread 14 comb tooth 14A tooth tip 14B tooth tip bottom portion 14C tooth tip side portion 31, 41 tread surface cleats 31A, 32A, 33A convex strip portions 31B, 32B, 33B, 41A, 42A concave groove portions 32, 33, 42 end Cleat 31a, 32a Top 31b, 32c, 41a, 42a Bottom 32b, 42b Protrusion 31c, 32d Side

Claims (1)

A plurality of treads that are connected endlessly and circulate between the getting-on / off floors at both ends, a tread cleat having a number of ridges and grooves that are long in the direction of travel in the width direction of these treads, and the direction of travel of the treads In the passenger conveyor having an end cleat having the same cross section as the tread cleat at the end, and comb teeth provided at the front of the getting-on / off floor and meshing with the plurality of tread cleats with a gap,
A passenger conveyor characterized in that gaps between the top, side and concave grooves of the end cleats and comb teeth are smaller than gaps between the top, side and concave grooves of the tread cleats and comb teeth .

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