Demarcation comb, escalator step having the demarcation comb, and escalator having the step

Abstract

To provide a demarcation comb in which a part where sliding luggage or the like comes into sliding contact is made of a rubber material and which can prevent breakdown due to collision with a comb plate as much as possible.SOLUTION: In a main body of an escalator, a demarcation comb 100 is provided in a notch formed at the corner between a riser and a tread plate having a tread surface having a plurality of strip-shaped rails arranged parallel to the width direction of the tread step. The demarcation comb has a plurality of comb teeth sections 110, 120, each provided at one end of each rail. Each comb tooth portion 110, 120 includes a plate-shaped core material portion 320, 330 and a covering portion 420, 430 made of rubber material covering the side surfaces and top surface of the core material portion 320, 330. The cleats of the tread are formed by the plurality of comb teeth sections 110, 120 and the plurality of rails.SELECTED DRAWING: Figure 11

Description

[Technical Field]

[0001] The present invention relates to a demarcation comb, an escalator step having the demarcation comb, and an escalator equipped with the step, and in particular to a technology for protecting passengers from slipping off luggage and the like. [Background technology]

[0002] Passengers carrying luggage such as suitcases on an escalator may accidentally drop the luggage. In this case, the luggage may slide down the successive steps, gradually gaining speed and colliding with passengers below with great force.

[0003] To address this situation, Patent Document 1 provides a surface of a demarcation comb 24, which is provided at the corner of the step between the tread and the riser, with fine irregularities 31 (Figs. 4A and 4B of Patent Document 1) that have a higher coefficient of friction than the tread surface of the tread. It is described that this causes the sliding load to come into sliding contact with the irregularities 31, and the frictional resistance reduces the speed at which the load slides down (Patent Document 1, paragraph

[0033] ). Specific examples of the irregularities 31 include glass fiber mixed with resin, and silica sand mixed with paint (Patent Document 1, paragraph

[0032] ).

[0004] However, there is a risk of scratches on the cargo that slides against the silica sand. Therefore, it is considered to make the demarcation comb itself out of rubber material. In general, rubber material has a relatively high coefficient of friction with other materials, which can provide frictional resistance to the cargo that slides down. In addition, it is soft and therefore less likely to damage the cargo.

[0005] Although not intended to slow down the speed at which luggage slides down, Patent Documents 2 and 3 disclose demarcation combs made of rubber material (Demarcation comb 5 (Figs. 2 and 3) in Patent Document 2, and Demarcation combs 5 and 6 (Fig. 1) in Patent Document 3). Hereinafter, the demarcation combs described in Patent Documents 2 and 3 will be referred to as "conventional demarcation combs."

[0006] On the tread surface of the tread, strip-shaped bars that are long in the width direction of the tread are arranged in a row in the length direction of the tread. Conventional demarcation combs have literally comb-tooth portions (comb-tooth portions 11 and 12 (Fig. 2) in Patent Document 2, comb-tooth portion 6 in Patent Document 3) provided at one end of each of the bars, The plurality of bars and the comb-tooth portions provided corresponding to each bar constitute a cleat of the step.

[0007] In a conventional demarcation comb having the above-described configuration, the sliding load comes into sliding contact with the comb teeth of the demarcation comb, which are made of rubber material, and the frictional resistance reduces the speed at which the load slides down. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2020-1854 [Patent Document 2] Patent No. 5963333 [Patent Document 3] Japanese Utility Model Application Publication No. 4-77582 Summary of the Invention [Problem to be solved by the invention]

[0009] However, demarcation combs are frequently stepped on by passengers during normal use. It has been discovered that when a conventional demarcation comb is stepped on, the comb teeth tend to fall in the direction of the length of the step and, without restoring to their original position (falling), may penetrate the comb plate installed on the exit side, colliding with the teeth of the comb plate and causing a malfunction.

[0010] The first object of the present invention is to provide a demarcation comb that can prevent the above-mentioned malfunctions as much as possible, even though the part that comes into sliding contact with sliding luggage or the like is made of rubber material.

[0011] A second object of the present invention is to provide a step having such a demarcation comb.

[0012] A third object of the present invention is to provide an escalator equipped with the steps. [Means for solving the problem]

[0013] In order to achieve the first object, the demarcation comb of the present invention is a demarcation comb that is provided in a notch formed at the corner formed by a step plate having a tread surface consisting of multiple strip-shaped bars arranged parallel to the width direction of the step and a riser in the main body of the step that constitutes an escalator, and has multiple comb-tooth portions provided at one end of each of the bars, each of which includes a plate-shaped core portion and a covering portion made of a rubber material that covers the side and top surfaces of the core portion, and the cleat of the step is formed by including the multiple comb-tooth portions and the multiple bars.

[0014] It also has a base portion fixed to the main body, and each of the core material portions includes a partition-like portion protruding upward from the base portion and a protruding portion protruding from the partition-like portion on the opposite side of the crosspiece, leaving a gap between it and the base portion, and the covering portion is integrated with the portion covering the side and top surface, and covers the tip of the protruding portion and the lower end surface facing the gap.

[0015] Furthermore, the core portion and the base portion are formed of different materials.

[0016] Alternatively, the core portion and the base portion may be integrally formed.

[0017] In order to achieve the second object, the escalator step of the present invention is a step that constitutes an escalator and has a main body including a roughly rectangular step and a riser, and is characterized in that a cutout portion is formed over the entire length of the step at the corner formed by the step and the riser in the main body, and the demarcation comb is provided in the cutout portion.

[0018] In order to achieve the third object, the escalator of the present invention is an escalator having a plurality of steps that are endlessly connected and run in a circular motion, and is characterized in that the above-mentioned escalator steps are used for each of the plurality of steps. [Effects of the Invention]

[0019] In the demarcation comb according to the present invention having the above-described configuration, each of the comb teeth includes a plate-shaped core and a rubber covering that covers the sides and top of the core. In other words, the rubber covering is reinforced by the core. Therefore, compared to the conventional demarcation comb described above, in which the entire comb teeth are made of rubber, the comb teeth are less likely to tip over in the longitudinal direction of the step even if stepped on by a passenger.

[0020] As a result, it is possible to prevent the comb teeth of the demarcation comb from colliding with the teeth of the comb plate as much as possible when the escalator is in operation.

[0021] In addition, the escalator step of the present invention has the demarcation comb provided in the cutout formed at the corner between the step and the riser, thereby achieving the same effect as the demarcation comb described above.

[0022] Furthermore, the escalator according to the present invention uses the above-mentioned escalator steps for each of the plurality of steps that are endlessly connected and run in a circular motion, and therefore has the same effects as the above-mentioned escalator steps. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a perspective view showing a schematic configuration of an escalator according to an embodiment. [Figure 2] FIG. 2(a) is a side view showing a schematic configuration of the escalator, FIG. 2(b) is an enlarged side view of a step that constitutes the escalator, and FIG. 2(c) is a perspective view of the step. [Figure 3] 1(a) is a side view of the demarcation comb attached to the step body, and FIG. 1(b) is a side view of the demarcation comb cut between the first comb tooth portion and the second comb tooth portion. [Figure 4] (a) is a perspective view of a demarcation comb, and (b) is a perspective view showing a part of a riser. [Figure 5] FIG. [Figure 6] FIG. 2(a) is a plan view of the base member, and FIG. 2(b) is a partially enlarged view of the plan view. [Figure 7] 6(a) is a side view of the base member, and (b) is a cross-sectional view taken along line A-A in FIG. 6(a). [Figure 8] (a) is an oblique view of the core member, (b) is a side view of the same, (c) is a side view of the core member cut at the base portion between the first core portion and the second core portion, and (d) is a side view of the core member cut at the base portion where a through hole is opened. [Figure 9] (a) shows a perspective view of the covering member, (b) shows a part of the bottom view of the same, (c) shows a side view of the same, (d) shows a side view of the covering member cut along line B-B in (b), and (e) shows a side view of the covering member cut along line C-C in (b). [Figure 10] 1 is a perspective view of a connecting pin and a portion of a perspective view including a longitudinal cross section of a demarcation comb cut along a plane including the axis of the connecting pin. [Figure 11] (a) is a portion of an oblique view including a cross-section of the demarcation comb cut at approximately the middle of the thickness of the first comb tooth portion, and (b) is a portion of an oblique view including a cross-section of the demarcation comb cut at approximately the middle of the thickness of the second comb tooth portion. [Figure 12](a) is an oblique view of a core member of a demarcation comb according to a modified example, (b) is a side view of the concentric member, and (c) is a side view of the concentric member cut at the base portion between the first core portion and the second core portion. [Figure 13] (a) is a portion of an oblique view including a cross-section of a demarcation comb according to a modified example cut at approximately the middle of the thickness of the first comb tooth portion, and (b) is a portion of an oblique view including a cross-section of the same demarcation comb cut at approximately the middle of the thickness of the second comb tooth portion. DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, the present invention will be described based on an embodiment with reference to the drawings. FIG. 1 is a perspective view showing the schematic configuration of an escalator 10 according to an embodiment. FIG. 2(a) is a side view showing the schematic configuration of the escalator 10, FIG. 2(b) is an enlarged side view of a step 12 constituting the escalator 10, and FIG. 2(c) is a perspective view of the step 12. FIG. 3(a) is a side view of the demarcation comb 100 attached to the main body 32 of the step 12, and FIG. 3(b) is a side view of the demarcation comb 100 cut between the first comb-tooth portion 110 and the second comb-tooth portion 120, which will be described later. Note that in FIG. 3(b), components that appear in the background, such as the second comb-tooth portion 120, are omitted from the illustration.

[0025] The escalator 10 has a plurality of steps 12 that are endlessly connected and run in a circular motion, and a pair of balustrades 14 that are erected along the path on both sides of the path along which the steps 12 run. A skirt guard 16 made of a panel such as a stainless steel plate is provided on the side of the lower end of each of the pair of balustrades 14, maintaining a small gap between each step 12 and the balustrade, and arranged along the path.

[0026] The multiple steps 12 are powered by a motor 20 installed in an upper machine room 18 and driven via a power transmission mechanism (not shown). The escalator 10, which spans the upper US and lower DS of a building, can be used for both ascending and descending by switching the rotation direction of the motor 20 between forward and reverse. In other words, the lower DS side can be either the boarding entrance or the exit entrance (hereinafter, both will be referred to as the "boarding / descending entrance").

[0027] A comb plate 22 and a floor plate 24 adjacent to the comb plate 22 are provided at the entrance and exit of the escalator 10. When the escalator 10 is used for ascending, the multiple steps 12 that run in a circular motion are extended horizontally one after another from the comb plate 22. When the escalator 10 is used for descending, the multiple steps 12 that run in a circular motion are inserted below the floor plate 24 from the comb plate 22.

[0028] As shown in Figures 2(b) and 2(c), the step 12 has a main body 32 with a rectangular step 28 and riser 30 attached to a frame 26, which serves as the main frame. Here, the direction along the long side of the rectangle is the length direction of the step 12, and the direction along the short side of the rectangle is the width direction of the step 12. The main body 32 is made of a metal material such as steel or aluminum alloy.

[0029] As shown in Figure 2(c), a plurality of demarcation combs 100 (four in this example) are provided in series in the longitudinal direction at the corner formed by the step 28 and the riser 30. As shown in Figure 3(a), a notch 32a is formed in the main body 32 of the step 12 at the corner formed by the step 28 and the riser 30, and the demarcation comb 100 is provided in the notch 32a.

[0030] Fig. 4(a) shows a perspective view of the demarcation comb 100. In Fig. 4(a), the step 28 and riser 30 of the step 12 on which the demarcation comb 100 is installed are shown by dashed and dotted imaginary lines. Fig. 4(b) is a perspective view showing a portion of the riser 30.

[0031] The tread 28 has a tread surface 28a formed by a plurality of strip-shaped crosspieces 38 extending in the width direction of the step 12 and parallel to the width direction, and arranged upright in the length direction of the step 12. Grooves 40 are necessarily formed between adjacent crosspieces 38.

[0032] The riser 30 is formed by multiple vertically long ridges 44 formed in the length direction of the step 12, and grooves 46 between adjacent ridges 44 and the multiple ridges 44 form cleats 42. The unevenness of the ridges 44 and grooves 46 of the riser 30 is formed by pressing a steel plate such as stainless steel. Therefore, as shown in Figure 4(b), the back side of the ridge 44 (the side facing the step 28) is also formed with a groove 44a.

[0033] Demarcation comb 100 includes base member 200, which serves as the base portion of the entire demarcation comb 100, core member 300, and covering member 400. Figure 5 is a perspective view of base member 200. Base member 200 has an elongated base portion 210 in which a single groove 211 having a U-shaped cross section is formed.

[0034] The base member 200 also has a plurality of ribs 220 protruding from the base portion 210. The ribs 220 are arranged in a row in the longitudinal direction of the base member 200. A groove 221 is formed in the vertical direction on the side surface (periphery) of each of the ribs 220 opposite to the crosspiece 38 (FIG. 4(a)).

[0035] Fig. 6(a) shows a plan view of the base member 200, and Fig. 6(b) shows an enlarged view of a portion of the plan view. Fig. 7(a) shows a side view of the base member 200, and Fig. 7(b) shows a cross-sectional view taken along line A-A in Fig. 6(a).

[0036] The base member 200 is also provided with protrusions 230 protruding from the end of the base 210 opposite the crosspiece 38 (FIG. 4(a)) at positions corresponding to every other one of the plurality of ribs 220 arranged in a row. Each of the protrusions 230 is further provided with a convex portion 231 protruding downward. Each of the protrusions 230 is also provided with a convex portion 232 protruding upward at its tip. A groove 201 is formed from the side surface of the convex portion 232 facing the rib 220 to the upper surface of the protrusion 230 and the upper surface of the base 210. The groove 201 is formed with a wide portion 201a and a narrow portion 201b to match the thicknesses of the covering member 400 and the core member 300 (FIG. 6(b)).

[0037] A groove 212 is also provided in the base 210 between adjacent grooves 201. Like the grooves 201, the grooves 212 are also formed into a wide portion 212a and a narrow portion 212b (FIG. 6(b)).

[0038] The base member 200 also has a first hole 213 opened in the bottom surface of the groove 211 of the base portion 210 (FIG. 6). Also, a second hole 214 is opened which is connected to the first hole 213 and has a larger diameter than the first hole 213 (FIG. 7(b)). A plurality of through holes (three in this example) consisting of the first hole 213 and the second hole 214 are opened at intervals (equally spaced in this example) in the longitudinal direction of the groove 211.

[0039] In the base portion 210 of the base member 200, four screw insertion holes 215 with countersunk holes are formed between the ribs 220. The base member 200 is made of hard plastic. Examples of hard plastic that can be used include ABS resin, polyethylene (PE), polystyrene (PS), AS resin, polyethylene terephthalate (PET), polypropylene (PP), and polycarbonate (PC). Alternatively, the base member 200 may be made of the same type of metal material as the main body 32.

[0040] Next, the core member 300 will be described. Fig. 8(a) shows a perspective view of the core member 300, and Fig. 8(b) shows a side view of the same. The core member 300 has an elongated base portion 310 with a rectangular cross section. The core member 300 has a plurality of first core portions 320 and a plurality of second core portions 330 protruding from the base portion 310. Both the first core portions 320 and the second core portions 330 are plate-shaped.

[0041] The first core portions 320 and the second core portions 330 are alternately arranged in the longitudinal direction of the steps 12 (FIG. 4(a)). The interval between adjacent core portions 320, 330 is set equal to the interval between the ribs 220 on the base member 200.

[0042] The tip of each first core portion 320 opposite the crosspiece 38 (FIG. 4(a)) protrudes further in the width direction of the step 12 (FIG. 4(a)) and away from the crosspiece 38 than the tip of each second core portion 330 opposite the crosspiece 38. In other words, the tip of each second core portion 330 is set back further toward the crosspiece 38 in the width direction of the step 12 (FIG. 4(a)) than the tip of each first core portion 320.

[0043] The first core portion 320 includes a partition-like portion 321 that protrudes upward from the base portion 310, and a protrusion 322 that protrudes from the partition-like portion 321 in the width direction of the step 12 (FIG. 4(a)) on the opposite side to the crosspiece 38.

[0044] Fig. 8(c) shows a side view of the core member 300 cut at the base 310 between the first core portion 320 and the second core portion 330. Note that in Fig. 8(c), parts that appear in the background of the second core portion 330 are not shown.

[0045] The second core part 330 includes a partition-like part 331 that protrudes upward from the base part 310, and a protruding part 332 that protrudes from the partition-like part 331 in the width direction of the step 12 (FIG. 4(a)) on the opposite side to the crosspiece 38. The second core part 330 has the same configuration as the first core part 320, except that the protruding part 332 is shorter than the protruding part 322.

[0046] FIG. 8(d) shows a side view of the core member 300, in which the base 310 is cut between the first core portion 320 and the second core portion 330 at a point different from that shown in FIG. 8(c). Note that, in FIG. 8(d) as well, parts that appear in the background of the second core portion 330 are not shown. Through holes 311 are formed in the base 310 of the core member 300. The through holes 311 are formed in three locations in the base 310, corresponding to the positions of the three first holes 213 (FIG. 6(a)) formed in the base 210 of the base member 200 (through holes 311 shown in FIG. 8(d) are not shown).

[0047] The core member 300 is made of hard plastic. Examples of hard plastic include ABS resin, polyethylene (PE), polystyrene (PS), AS resin, polyethylene terephthalate (PET), polypropylene (PP), and polycarbonate (PC). The core member 300 is not limited to the above-mentioned materials as long as it is harder (more rigid) than the covering member 400 described below. For example, it may be made of the same metal material as the main body 32.

[0048] Next, the covering member 400 will be described. FIG. 9(a) shows a perspective view of the covering member 400, FIG. 9(b) shows a portion of a bottom view of the covering member 400, and FIG. 9(c) shows a side view of the covering member 400. The covering member 400 is a rubber member made of a rubber material. The covering member 400 is formed from natural rubber or synthetic rubber. Examples of synthetic rubber that can be used include chloroprene rubber (CR), butadiene rubber (BR), styrene-butadiene rubber (SBR), ethylene propylene rubber (EPM), urethane rubber (U), acrylic rubber (ACM), isoprene rubber (IR), silicone rubber (Q), and fluororubber (FKM).

[0049] The covering member 400 has an elongated base portion 410 having a rectangular cross section. The covering member 400 has a plurality of first covering portions 420 and a plurality of second covering portions 430 protruding from the base portion 410.

[0050] The first covering portions 420 and the second covering portions 430 are alternately arranged in the longitudinal direction of the steps 12 (FIG. 4(a)). The distance between adjacent covering portions 420, 430 is set equal to the distance between the core portions 320, 330 of the core member 300.

[0051] The tip of each of the first covering portions 420 opposite the crosspiece 38 (FIG. 4(a)) protrudes further in the width direction of the step 12 (FIG. 4(a)) and away from the crosspiece 38 than the tip of each of the second covering portions 430 opposite the crosspiece 38. In other words, the tip of each of the second covering portions 430 is set back further toward the crosspiece 38 in the width direction of the step 12 (FIG. 4(a)) than the tip of each of the first covering portions 420.

[0052] First covering portion 420 has a rectangular plate-shaped partition portion 421 and an anti-slip portion 422 extending from partition portion 421. The upper end surface of anti-slip portion 422 has a certain area and is set at the same angle as the gradient of escalator 10.

[0053] A tenon portion 423 is provided from the lower tip of the non-slip portion 422 to the lower peripheral surface. A tenon portion 424 is also provided on the side surface of the partition-like portion 421 opposite to the non-slip portion 422.

[0054] The first covering portion 420 is made of a space that roughly matches the outer shape of the first core portion 320 of the core member 300, and has a void portion 425 that is open downward.

[0055] Fig. 9(d) shows a side view of the covering member 400 taken along line B-B in Fig. 9(b). Note that in Fig. 9(d), parts that appear in the background of the second covering portion 430 are not shown.

[0056] Second covering part 430 has a rectangular plate-shaped partition part 431 and an anti-slip part 432 extending from partition part 431. Second covering part 430 has basically the same configuration as first covering part 420, except that anti-slip part 432 is shorter than anti-slip part 422.

[0057] That is, the upper end surface of anti-slip portion 432 has a certain area and is set at the same angle as the gradient of escalator 10. In addition, tenon portion 433 is provided on the lower peripheral surface of the tip of anti-slip portion 432. Tenon portion 434 is also provided on the side of partition-like portion 431 opposite to anti-slip portion 432.

[0058] The second covering portion 430 is made of a space that roughly matches the outer shape of the second core portion 330 of the core member 300, and has a void portion 435 that is open downward.

[0059] Fig. 9(e) is a side view of the covering member 400 taken along line C-C in Fig. 9(b). Note that, in Fig. 9(e) as well, parts that appear in the background of the second covering portion 430 are not shown.

[0060] Connecting pin insertion holes 411 with countersunk holes are formed in the base 410 of the covering member 400. The connecting pin insertion holes 411 are provided in three locations on the base 410 in accordance with the opening positions of the three first holes 213 (FIG. 6(a)) provided in the base 210 of the base member 200 (not shown except for the connecting pin insertion holes 411 shown in FIGS. 9(b) and 9(e)).

[0061] Next, the connecting pin 500 will be described with reference to Figure 10. As shown in the upper part of Figure 10, the connecting pin 500 is a flanged pin having a flange portion 501, a large diameter portion 502, a tapered portion 503, and a small diameter portion 504, in this order. The connecting pin 500 is made of rubber (natural rubber, synthetic rubber) or other elastic material. The demarcation comb 100 has a total of three connecting pins 500, one at each of the three locations on the base 410.

[0062] The diameter of the flange portion 501 is set to be smaller than the diameter of the large diameter portion of the connecting pin insertion hole 411 (FIG. 9(e)) and larger than the diameter of the small diameter portion. The diameter of the large diameter portion 502 is set to be the same as or slightly smaller than the diameter of the large diameter portion of the connecting pin insertion hole 411 (FIG. 9(e)) and the diameter of the through hole 311 (FIG. 8(d)) of the base portion 310 of the core member 300. In addition, the diameter of the large diameter portion 502 is set to be slightly larger than the first hole 213 (FIG. 7(b)) of the base member 200. The diameter of the small diameter portion 504 is set to be small enough to easily pass through the connecting pin insertion hole 411, the through hole 311, and the first hole 213.

[0063] The steps for assembling the base member 200, core member 300, and covering member 400 described above to form the demarcation comb 100 and attaching it to the main body 32 of the step 12 will now be described.

[0064] First, the covering member 400 is placed over the core member 300. Specifically, each of the first core portions 320 is fitted into each of the gaps 425 of the first covering portion 420, and each of the second core portions 330 is fitted into each of the gaps 435 of the second covering portion 430. As a result, the first core portion 320 is covered with the first covering portion 420, and the second core portion 330 is covered with the second covering portion 430. In other words, the side and top surfaces of the first core portion 320 are covered with the first covering portion 420, and the side and top surfaces of the second core portion 330 are covered with the second covering portion 430.

[0065] Here, in the demarcation comb 100, the portion that literally forms the comb teeth, including the first core portion 320 and the first covering portion 420 that covers it, will be referred to as the first comb tooth portion 110, and the portion that includes the second core portion 330 and the second covering portion 430 that covers it will be referred to as the second comb tooth portion 120.

[0066] The covering member 400 and core member 300 assembled as described above are attached to the base member 200. Specifically, the tenon portions 424 of the first covering member 420 and the tenon portions 434 of the second covering member 430 are slid from directly above into the corresponding grooves 221 of the base member 200 until the bottom surface of the base 310 of the core member 300 abuts against the bottom surface of the groove 211 of the base 210 of the base member 200.

[0067] Next, each tenon portion 423 of the first covering portion 420 is pressed into the corresponding groove 201 in the base member 200, and the tenon portion 433 of the second covering portion 430 is pressed into the corresponding groove 212 in the base member 200. At this point, the connecting pin insertion hole 411 (FIGS. 9(b) and 9(e)) of the covering member 400, the through hole 311 (FIG. 8(d)) of the core member 300, and the first hole 213 and second hole 214 (FIGS. 6 and 7(b)) of the base member 200 are in communication with each other.

[0068] Next, the thin-diameter portions 504 of the three connecting pins 500 are inserted until resistance is felt from the corresponding connecting-pin insertion holes 411, that is, until the tapered portions 503 abut against the periphery of the opening of the first holes 213 in the base portion 210 of the base member 200. This causes the thin-diameter portions 504 to protrude downward from the bottom surface of the base member 200 (downward from the opening of the second holes 214).

[0069] The protruding portion of the small diameter portion 504 is pinched and pulled in a direction away from the base member 200. This causes the tapered portion 503 to contract radially, followed by the large diameter portion 502, which contracts until it can enter the first hole 213. The flange portion 501 is then pulled until it abuts against the seating surface of the connecting pin insertion hole 411. A cross-sectional view of the state after pulling is complete is shown in the lower part of FIG. 10. In this state, a frictional force is generated between the circumferential surface of the large diameter portion 502 and the circumferential surface of the first hole 213 of the base member 200 due to the restoring force of the elastically contracted large diameter portion 502, and the covering member 400, core member 300, and base member 200 are connected by the connecting pin 500.

[0070] The demarcation comb 100 assembled as described above is fixed to the main body 32 of the step 12 with screws (not shown). Female threads (not shown) are formed on the upper surface of the notched portions 32a of the main body 32 in correspondence with the screw insertion holes 215.

[0071] After aligning the screw insertion holes 215 with the positions of the corresponding female screws, each of the protrusions 231 of the base member 200 is fitted into the corresponding upper end of the groove 44a of the riser 30 to close the upper end of the groove 44a.

[0072] Then, by threading a screw inserted through the screw insertion hole 215 into the female thread and tightening it, the base member 200, and ultimately the entire demarcation comb 100, is fixed to the main body 32. The head of the screw is embedded in the countersunk portion of the screw insertion hole 215 and does not protrude from the periphery of the opening of the screw insertion hole 215.

[0073] When attached to the main body 32, each of the first comb tooth portions 110 and each of the second comb tooth portions 120 are located at one end of each crosspiece 38, as shown in Figure 4(a), and the cleat 36 of the step 12 is formed by these multiple first comb tooth portions 110, second comb tooth portions 120, and multiple crosspieces 38.

[0074] The effects of the demarcation comb 100 according to the embodiment described above will be described below. (1) In the conventional demarcation comb described above, the comb teeth that make up part of the tip of the step cleat are entirely made of rubber. In contrast, the comb teeth (first comb teeth 110, second comb teeth 120) of the demarcation comb 100 according to the embodiment are made up of plate-shaped core parts (first core part 320, second core part 330) and covering parts (first covering part 420, second covering part 430) that cover the side and top surfaces of the core parts.

[0075] In other words, the comb-tooth portion of the embodiment has a covering portion made of rubber reinforced with a core portion (FIGS. 10 and 11). Therefore, compared to a conventional comb-tooth portion that is made entirely of rubber, the comb-tooth portion of the embodiment is less likely to tip over in the length direction of the step 12 even if stepped on by a passenger.

[0076] As a result, when the escalator 10 is in operation, it is possible to prevent as much as possible malfunctions caused by the comb tooth portions (first comb tooth portion 110, second comb tooth portion 120) of the demarcation comb 100 colliding with the teeth (not shown) of the comb plate 22 (Figure 1).

[0077] (2) The upper end surfaces of the anti-slip portions 422, 432, which have a certain area, are set at the same angle as the gradient of the escalator 10, so that the contact area with luggage such as suitcases sliding down can be secured, and therefore a greater frictional resistance can be provided compared to the above-mentioned conventional demarcation comb, and the sliding speed of the luggage can be further suppressed.

[0078] (3) The base member 200, which is the base portion fixed to the main body 32, and the core member 300, which reinforces the covering member 400, are separate bodies. This allows the base member 200 and the core member 300 to be made of different materials. For example, the base member 200 can be made of a relatively inexpensive synthetic resin, and the core member 300, which requires strength (rigidity), can be made of stainless steel.

[0079] (Variation) In the above embodiment, the first comb tooth portion 110 and the second comb tooth portion 120 are configured so that the first covering portion 420 and the second covering portion 430 cover the side and upper surfaces of the first core portion 320 and the second core portion 330, respectively, but they may also be configured to cover part of the lower surface of the core portion.

[0080] 12(a) shows a perspective view of a core member 1300 of a demarcation comb 1100 according to a modified example, and FIG. 12(b) shows a side view of the same. FIG. 12(c) shows a side view of the core member 1300 cut at the base 1310 between the first core portion 1320 and the second core portion 1330. Note that in FIG. 12(c), the portion that appears in the background of the second core portion 1330 is omitted.

[0081] The DemarcationCom 1100 has a fundamentally similar configuration to the DemarcationCom 100, with the exception of differences in the shapes of some of the core and covering members. Therefore, in Figures 12 and 13, the components of the DemarcationCom 1100 are given numbers in the thousandths series, with the last three digits being the numbers of the corresponding components in the DemarcationCom 100. The explanations for these components will be limited to occasional references, and the following explanation will focus on the differences.

[0082] Core member 1300 of demarcation comb 1100 has a configuration in which the portions indicated by the two-dot chain lines in Figures 8(b), 8(c), and 8(d) are removed from protrusions 322 and 332 of core member 300. Other than this, it is the same as core member 300 of demarcation comb 100.

[0083] In demarcation comb 1100, the above-described removal creates gaps between the undersides of protrusions 1322 and 1332 and base member 1200, as shown in Figure 13. First covering member 1420 and second covering member 1430 extend into the gaps.

[0084] That is, in the demarcation comb 1100, each of the first core portion 1320 and the second core portion 1330 includes a partition-like portion 1321, 1331 protruding upward from the base member 1200, and a protrusion portion 1322, 1332 protruding from each of the partition-like portions 1321, 1331 to the opposite side of the crosspiece 38 (Figure 4(a)) with a gap between them and the base member 1200, and each of the first covering portion 1420 and the second covering portion 1430 is integrated with the portion covering the side and top surfaces of each of the first core portion 1320 and the second core portion 1330, and is configured to cover the tip end of each of the protrusions 1322, 1332 and the lower end surface facing the gap.

[0085] In the Demarcation Com 1100, the core member 1300 is coated during the process of molding the covering member 1400 by injection molding using a mold. That is, after the core member 1300 is set in the mold, liquid rubber is injected into a cavity formed in the outer shape of the covering member 1400, thereby coating the first core portion 1320 and the second core portion 1330.

[0086] DemarcationCom 1100 according to this modified example provides the following advantages in addition to the advantages of DemarcationCom 100 described above. For example, in the case of an upward escalator, there is a risk that the anti-slip portions 1422, 1432 of the covering portions (first covering portion 1420, second covering portion 1430) may be scraped up by the footwear of passengers running up the escalator. However, by covering first core portion 1320 and second core portion 1330 up to the gap, it is possible to prevent first covering portion 1420 and second covering portion 1430 from peeling upward from first core portion 1320 and second core portion 1330 as much as possible.

[0087] The present invention has been described above based on the embodiment and its modified examples, but it goes without saying that the present invention is not limited to the above-described embodiment, and may be embodied in the following manner, for example. (1) In the above embodiment, the base members 200, 1200 and the core members 300, 1300 are separate members, but they may be formed integrally. This reduces the number of steps required for assembly compared to when they are separate members. When they are formed integrally, for example, they can be formed by injection molding using synthetic resin as the material.

[0088] (2) In the above embodiment, four demarcation combs 100, 1100 are provided per step 12 (FIG. 2(c)), but the number of demarcation combs per step is not limited to this. One, two, three, or even five or more demarcation combs are also acceptable. In any case, the length of each demarcation comb is set according to the number of demarcation combs, and the demarcation combs are provided along the entire length of the step.

[0089] (3) In the above embodiment, portions of the upper end surfaces of the first comb-tooth portions 110, 1110 and the second comb-tooth portions 120, 1120 are inclined to form the anti-slip portions 422, 1422 and the anti-slip portions 432, 1432, but these portions do not necessarily have to be inclined. That is, the entire upper end surfaces of the first comb-tooth portions 110, 1110 and the second comb-tooth portions 120, 1120 may be configured to be on the same horizontal plane, and this horizontal plane may be used as the anti-slip portion. Alternatively, the upper end surfaces of the first comb-tooth portions 110, 1110 and the second comb-tooth portions 120, 1120 may be configured to be on a uniform plane, and the entire plane may be inclined to form the anti-slip portion.

[0090] (4) In the above embodiment, the covering members 400, 1400 (core members 300, 1300) are connected to the base members 200, 1200 by connecting pins 500, 1500 provided separately from the covering members 400, 1400. However, this is not limited to this, and connecting pins may be integrally formed in the covering members and connected to the base members 200, 1200. [Industrial Applicability]

[0091] The present invention can be suitably used for an escalator in which a demarcation comb is provided at the corner formed by the tread and the riser. [Explanation of symbols]

[0092] 10 Escalator 12 Steps 28 Treadboard 30 riser 32 Main Unit 32a Notch 100, 1100 Demarcation Com 110, 1110 First comb tooth part 120, 1120 Second comb tooth part 320, 1320 First core part 330, 1330 Second core part 420, 1420 First coating part 430, 1430 Second coating part

Claims

1. A demarcation comb is provided in a notch formed at the corner between a step plate having a tread surface formed by a plurality of strip-shaped bars arranged parallel to the width direction of the step and a riser in the main body of the step that constitutes an escalator, Each of the bars has a plurality of comb-tooth portions provided at one end thereof, Each of the comb tooth portions is A plate-shaped core portion; a covering portion made of a rubber material that covers the side and top surfaces of the core portion; Including, A demarcation comb, characterized in that the step cleats are formed including the plurality of comb tooth portions and the plurality of crosspieces.

2. a base portion fixed to the main body, Each of the core portions includes a partition-like portion protruding upward from the base portion, and a protruding portion protruding from the partition-like portion toward the opposite side of the crosspiece, leaving a gap between the base portion and the partition-like portion, The demarcation comb according to claim 1, characterized in that the covering portion is integrated with the portion covering the side and top surfaces, covering the tip of the protrusion and the lower end surface facing the gap.

3. The demarcation comb according to claim 2 , wherein the core portion and the base portion are formed of different materials.

4. The demarcation comb according to claim 2, wherein the core portion and the base portion are integrally formed.

5. A step constituting an escalator, the step having a body including a substantially rectangular step plate and a riser, A notch is formed along the entire length of the step at the corner of the body where the step and the riser meet, An escalator step, characterized in that the demarcation comb according to any one of claims 1 to 4 is provided in the notch portion.

6. An escalator having a plurality of steps that are endlessly connected and run in a circular motion, An escalator, wherein the escalator step according to claim 5 is used for each of the plurality of steps.

Images