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

Abstract

Provide a demarcation rubber that can prevent malfunctions caused by contact with a comb plate as much as possible, while the portion where the sliding luggage or the like comes into sliding contact is formed of a rubber material. 【Solution means】In the main body of the step constituting the escalator, a demarcation rubber 100 provided at a notch formed at a corner formed by a tread plate having a tread surface formed by a plurality of strip-shaped crosspieces provided parallel to the width direction of the step and a riser, has a plurality of comb teeth portions 110, 120 respectively provided at one end of each of the crosspieces. Each of the comb teeth portions 110, 120 includes plate-shaped core material portions 320, 330 and covering portions 420, 430 made of a rubber material that cover the side surfaces and upper surfaces of the core material portions 320, 330. The plurality of comb teeth portions 110, 120 and the plurality of crosspieces are included to constitute the cleat of the step.

Description

Technical Field

[0001] The present invention relates to a demarcation comb, a step for an escalator having the demarcation comb, and an escalator provided with the step, and particularly relates to a technique for protecting passengers from the sliding of luggage or the like.

Background Art

[0002] Passengers on an escalator with luggage such as a suitcase may accidentally drop the luggage. In this case, the luggage may slide down on the steps that are continuous in a staircase shape (slide down), gradually increase in speed, and collide forcefully with the passengers below.

[0003] To address this situation, in Patent Document 1, fine irregularities 31 (FIGS. 4A and 4B of Patent Document 1) having a friction coefficient larger than the tread surface of the tread board are provided on the surface of the demarcation comb 24 provided at the corner formed by the tread board and the riser in the step. According to this, it is described that when the sliding luggage comes into sliding contact with the irregularities 31, the sliding speed of the luggage is suppressed by the frictional resistance (paragraph

[0033] of Patent Document 1). Specific examples of the irregularities 31 include glass fibers mixed in resin or silica sand mixed in paint (paragraph

[0032] of Patent Document 1).

[0004] However, for example, luggage in sliding contact with silica sand may be scratched. Therefore, it is conceivable to form the demarcation comb itself from a rubber material. Generally, rubber materials have a relatively large friction coefficient with other materials, can provide frictional resistance to sliding luggage, and are soft, so it is difficult to damage the luggage.

[0005] Although not intended to suppress the sliding speed of luggage, Patent Documents 2 and 3 disclose demarcation combs formed of a rubber material (demarcation comb 5 (FIGS. 2 and 3) in Patent Document 2, demarcation combs 5 and 6 (FIG. 1) in Patent Document 3). Hereinafter, the demarcation combs described in Patent Documents 2 and 3 are referred to as "conventional demarcation combs".

[0006] On the tread surface of the tread board, strip-shaped crosspieces that are long in the width direction of the tread board are arranged in a row in the length direction of the tread board. The conventional demarcation rubber has, literally, comb teeth portions (comb teeth portions 11 and 12 (Fig. 2) of Patent Document 2, comb teeth portion 6 of Patent Document 3) provided at one end of each of the crosspieces, and the plurality of crosspieces and the comb teeth portions provided corresponding to each of them constitute the cleat of the staircase.

[0007] According to the conventional demarcation rubber having the above configuration, since the sliding luggage comes into sliding contact with the comb teeth portion of the demarcation rubber formed of a rubber material, the sliding speed of the luggage is suppressed by the frictional resistance.

Prior Art Documents

Patent Documents

[0008]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0009] However, during normal use, the demarcation rubber is frequently stepped on by passengers. It has been found that when the conventional demarcation rubber is stepped on, the comb teeth portion falls in the length direction of the staircase and enters the comb plate provided on the landing side without restoring (remaining fallen), and may collide with the teeth of the comb plate, causing a failure.

[0010] A first object of the present invention is to provide a demarcation rubber that can prevent the above-described failure as much as possible while the portion with which the sliding luggage or the like comes into sliding contact is formed of a 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 provided with the above step.

Means for Solving the Problems

[0013] To achieve the above first object, the demarcation comb according to the present invention is a demarcation comb provided in a notch formed at a corner formed by a tread plate having a tread surface formed by a plurality of strip-shaped crosspieces provided in parallel with the width direction of the step and a riser in the main body of the step constituting the escalator, and has a plurality of comb teeth portions respectively provided at one end portion of each of the crosspieces, and each of the comb teeth portions includes a plate-shaped core material portion and a covering portion made of a rubber material covering the side surface All and the upper surface of the core material portion, and is characterized in that the cleat of the step is constituted by including the plurality of comb teeth portions and the plurality of strip-shaped crosspieces.

[0014] Further, it has a base portion fixed to the main body, and each of the core material portions includes a partition-shaped portion protruding upward from the base portion and a protruding portion protruding from the partition-shaped portion to the side opposite to the crosspiece with a gap from the base portion, and the covering portion is integrally formed with a portion covering the side surface and the upper surface and covers the tip end portion of the protruding portion and the lower end surface facing the gap.

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

[0016] Alternatively, the core material portion and the base portion are integrally formed.

[0017] In order to achieve the above second object, a step for an escalator according to the present invention is a step constituting an escalator, having a main body including a substantially rectangular tread plate and risers, wherein a notch is formed at a corner formed by the tread plate and the risers in the main body over the entire length of the tread plate, and the demarcation rubber is provided in the notch.

[0018] In order to achieve the above third object, an escalator according to the present invention is an escalator having a plurality of steps connected in an endless manner and circulatingly running, wherein each of the plurality of steps uses the above step for an escalator.

Effects of the Invention

[0019] According to the demarcation rubber according to the present invention having the above configuration, each of the comb teeth portions includes a plate-shaped core material portion and a covering portion made of a rubber material covering the side surface and the upper surface of the core material portion. In other words, the comb teeth portion has a configuration in which the covering portion made of a rubber material is reinforced by the core material portion. Therefore, compared with the above conventional demarcation rubber in which all of the comb teeth portions are formed of a rubber material, even if stepped on by a passenger, it is difficult to fall in the longitudinal direction of the step.

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

[0021] Further, since the demarcation rubber is provided in the notch formed at the corner formed by the tread plate and the risers in the step for an escalator according to the present invention, the same effect as the above-described demarcation rubber is achieved.

[0022] Further, since each of the plurality of steps connected in an endless manner and circulatingly running in the escalator according to the present invention uses the above step for an escalator, the same effect as the above step for an escalator is achieved.

Brief Description of the Drawings

[0023]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Mode for Carrying Out the Invention

[0024] Hereinafter, the present invention will be described based on embodiments with reference to the drawings. FIG. 1 is a perspective view showing a 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 a 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 a first comb tooth portion 110 and a second comb tooth portion 120 described later. In FIG. 3(b), illustration of members appearing in the background such as the second comb tooth portion 120 is omitted.

[0025] The escalator 10 has a plurality of steps 12 that are connected in an endless manner and circulate, and a pair of balustrades 14 erected along the running path on both sides of the running path of the plurality of steps 12. 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, keeping a slight gap from each step 12 and arranged along the running path.

[0026] The plurality of steps 12 are driven by using a motor 20 installed in the upper machine room 18 as a power source and via a power transmission mechanism (not shown). The escalator 10 spanning between the upper floor US and the lower floor DS of the building can be used for ascending and descending by switching the rotation direction of the motor 20 between forward rotation and reverse rotation. That is, the lower floor DS side can be either an entrance or an exit (hereinafter, both are collectively referred to as the "entrance / exit").

[0027] At the entrance / exit of the escalator 10, a comb plate 22 and a floor plate 24 adjacent to the comb plate 22 are provided. When the escalator 10 is for ascending, the plurality of steps 12 that circulate and run are successively extended horizontally from the comb plate 22. When the escalator 10 is for descending, the plurality of steps 12 that circulate and run dive below the floor plate 24 from the comb plate 22.

[0028] As shown in FIGS. 2(b) and 2(c), the step 12 has a main body 32 in which a rectangular tread plate 28 and risers 30 are attached to a frame 26 serving as a main frame. Here, the direction along the long side of the rectangle is defined as the length direction of the step 12, and the direction along the short side of the rectangle is defined as the width direction of the step 12. The main body 32 is formed of a metal material such as a steel material or an aluminum alloy.

[0029] At the corner formed by the tread plate 28 and the risers 30, as shown in FIG. 2(c), a plurality of (four in this example) demarcation combs 100 are provided in series in the length direction. At the corner formed by the tread plate 28 and the risers 30 in the main body 32 of the step 12, as shown in FIG. 3(a), a notch 32a is formed, 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 tread plate 28 and the risers 30 of the step 12 provided with the demarcation comb 100 are shown by a one-dot chain line virtual line. FIG. 4(b) is a perspective view showing a part of the riser 30.

[0031] The tread plate 28 has a tread surface 28a formed by a plurality of strip-shaped crosspieces 38 provided long in the width direction of the step 12 and parallel to the width direction, standing upright in the length direction of the step 12. Inevitably, grooves 40 are formed between adjacent crosspieces 38.

[0032] The riser 30 is formed by a plurality of ridges 44 that are long in the vertical direction and formed in the length direction of the step 12, and the crete 42 is formed by the grooves 46 between adjacent ridges 44 and the plurality of ridges 44. 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 Fig. 4(b), the back side (tread plate 28 side) of the ridge 44 is also formed in the groove 44a.

[0033] The demarcation comb 100 includes a base member 200 as a base portion in the entire demarcation comb 100, a core member 300, and a covering member 400. Fig. 5 is a perspective view of the base member 200. The base member 200 has a long base portion 210 in which a single groove 211 having a "C" - 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 length direction of the base member 200. Grooves 221 are provided in the vertical direction on the side surface (circumferential surface) of each rib 220 on the side 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 a partially enlarged view 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, at positions corresponding to every other one of the plurality of ribs 220 arranged in a row, with protrusions 230 protruding from the end of the base 210 on the side opposite to the crossbar 38 (FIG. 4(a)). Each of the protrusions 230 is further provided with a convex portion 231 protruding downward. Further, at the tip portion of each of the protrusions 230, a convex portion 232 protruding upward is provided. A groove 201 is formed from the side surface of the convex portion 232 on the rib 220 side to the upper surface of the protrusion 230 and the upper surface of the base 210. The groove 201 is formed into a wide portion 201a and a narrow portion 201b according to the thicknesses of the covering member 400 and the core member 300 (FIG. 6(b)).

[0037] The base 210 between adjacent grooves 201 is also provided with a groove 212. Similar to the groove 201, the groove 212 is formed into a wide portion 212a and a narrow portion 212b (FIG. 6(b)).

[0038] Further, the base member 200 has a first hole 213 opened at the bottom surface of the groove 211 of the base 210 (FIG. 6). Further, a second hole 214 that communicates with the first hole 213 and has a larger diameter than the first hole 213 is opened (FIG. 7(b)). A plurality (three in this example) of through holes each composed of the first hole 213 and the second hole 214 are opened at intervals in the longitudinal direction of the groove 211 (equally spaced in this example).

[0039] At four locations among the ribs 220 in the base 210 of the base member 200, tapped screw insertion holes 215 are opened. The base member 200 is formed of a hard plastic. As the hard plastic, for example, ABS resin, polyethylene (PE), polystyrene (PS), AS resin, polyethylene terephthalate (PET), polypropylene (PP), polycarbonate (PC), or the like is used. Alternatively, the base member 200 may be formed of a metal material of the same type as the main body 32.

[0040] Next, the core member 300 will be described. A perspective view of the core member 300 is shown in FIG. 8(a), and a side view thereof is shown in FIG. 8(b). The core member 300 has a long base portion 310 with a quadrangular cross section. The core member 300 has a plurality of first core material portions 320 and a plurality of second core material portions 330 protruding from the base portion 310. Both the first core material portion 320 and the second core material portion 330 are plate-shaped.

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

[0042] The tips of the first core material portions 320 on the side opposite to the crossbars 38 (FIG. 4(a)) protrude on the side opposite to the crossbars 38 in the width direction of the step 12 (FIG. 4(a)) more than the tips of the second core material portions 330 on the side opposite to the crossbars 38. In other words, the tips of the second core material portions 330 are retracted toward the crossbar 38 side in the width direction of the step 12 (FIG. 4(a)) more than the tips of the first core material portions 320.

[0043] The first core material portion 320 includes a partition-shaped portion 321 protruding upward from the base portion 310 and a protruding portion 322 protruding from the partition-shaped portion 321 on the side opposite to the crossbar 38 in the width direction of the step 12 (FIG. 4(a)).

[0044] A side view of the core member 300 cut at the base portion 310 between the first core material portion 320 and the second core material portion 330 is shown in FIG. 8(c). In FIG. 8(c), illustration of the portion appearing in the background of the second core material portion 330 is omitted.

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

[0046] Fig. 8(d) shows a side view of the base portion 310 of the core member 300 cut while the core member 300 is different from Fig. 8(c) in the first core member portion 320 and the second core member portion 330. Note that in Fig. 8(d) as well, illustration of the portion appearing in the background of the second core member portion 330 is omitted. In the base portion 310 of the core member 300, a through hole 311 is provided. The through hole 311 is provided at three locations on the base portion 310 in accordance with the opening positions of the three first holes 213 (Fig. 6(a)) provided in the base portion 210 of the base member 200 (the through hole 311 other than that shown in Fig. 8(d) is not shown).

[0047] The core member 300 is formed of a hard plastic. The hard plastic includes, for example, ABS resin, polyethylene (PE), polystyrene (PS), AS resin, polyethylene terephthalate (PET), polypropylene (PP), polycarbonate (PC), etc. The core member 300 is not limited to the above-described materials as long as it is harder (has higher rigidity) than the coating member 400 described later. For example, it may be formed of the same kind of metal material as the main body 32.

[0048] Next, the coating member 400 will be described. Fig. 9(a) shows a perspective view of the coating member 400, Fig. 9(b) shows a part of the bottom view of the coating member 400, and Fig. 9(c) shows a side view of the coating member 400. The coating member 400 is a rubber member made of a rubber material. The coating member 400 is formed of natural rubber or synthetic rubber. As the synthetic rubber, for example, 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), fluororubber (FKM), etc. are used.

[0049] The coating member 400 has a long base portion 410 with a quadrangular cross section. The coating member 400 has a plurality of first coating portions 420 and a plurality of second coating portions 430 protruding from the base portion 410.

[0050] The first covering part 420 and the second covering part 430 are alternately arranged in the longitudinal direction of the step 12 (Fig. 4(a)). The interval between the adjacent covering parts 420 and 430 is set equal to the interval between the core material parts 320 and 330 in the core member 300.

[0051] The tip of each of the crossbars 38 (Fig. 4(a)) of the first covering part 420 on the side opposite to the crossbar 38 protrudes on the side opposite to the crossbar 38 in the width direction of the step 12 (Fig. 4(a)) from the tip of each of the crossbars 38 of the second covering part 430. In other words, the tip of each of the second covering parts 430 retreats toward the crossbar 38 side in the width direction of the step 12 (Fig. 4(a)) from the tip of each of the first covering parts 420.

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

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

[0054] The first covering part 420 consists of a space that substantially conforms to the outer shape of the first core material part 320 of the core member 300 and has a gap part 425 that is open at the bottom.

[0055] Fig. 9(d) shows a side view of the covering member 400 cut along the line B·B in Fig. 9(b). In Fig. 9(d), the illustration of the part that appears in the background of the second covering part 430 is omitted.

[0056] The second covering part 430 has a partition-like part 431 in the shape of a rectangular plate and an anti-slip part 432 extending from the partition-like part 431. The second covering part 430 basically has the same configuration as the first covering part 420 except that the anti-slip part 432 is shorter than the anti-slip part 422.

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

[0058] The second covering portion 430 is composed of a space that substantially matches the outer shape of the second core member portion 330 of the core member 300 and has a gap portion 435 that is open at the bottom.

[0059] A side view of the covering member 400 cut along the line C·C in Fig. 9(b) is shown in Fig. 9(e). Also in Fig. 9(e), illustration of the portion that appears in the background of the second covering portion 430 is omitted.

[0060] In the base portion 410 of the covering member 400, a grooved connection pin insertion hole 411 is provided. The connection pin insertion holes 411 are provided at three locations on the base portion 410 in accordance with the opening positions of the three first holes 213 (Fig. 6(a)) provided in the base portion 210 of the base member 200 (the connection pin insertion holes 411 other than those shown in Fig. 9(b) and Fig. 9(e) are not shown).

[0061] Next, the connection pin 500 will be described with reference to Fig. 10. As shown in the upper part of Fig. 10, the connection pin 500 is a pinned 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 connection pin 500 is formed of rubber (natural rubber, synthetic rubber) or other elastic materials. The demarcation rubber 100 has three connection pins 500, one for each of the above three locations on the base portion 410, for a total of three.

[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. Also, 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 thin enough to easily pass through the connecting pin insertion hole 411, the through-hole 311, and the first hole 213.

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

[0064] First, cover the core member 300 with the covering member 400. Specifically, each of the first core member portions 320 is fitted into each of the void portions 425 of the first covering portion 420, and each of the second core member portions 330 is fitted into each of the void portions 435 of the second covering portion 430. Thereby, the first core member portion 320 is covered with the first covering portion 420, and the second core member portion 330 is covered with the second covering portion 430. That is, the side surface and the upper surface of the first core member portion 320 are covered with the first covering portion 420, and the side surface and the upper surface of the second core member portion 330 are covered with the second covering portion 430.

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

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

[0067] Next, push each of the tenon portions 423 of the first covering portion 420 into the corresponding groove 201 in the base member 200, and push the tenon portion 433 of the second covering portion 430 into the corresponding groove 212 in the base member 200. Here, the connecting pin insertion holes 411 (FIGS. 9(b) and 9(e)) of the covering member 400, the through holes 311 (FIG. 8(d)) of the core member 300, and the first hole 213 and the second hole 214 (FIGS. 6 and 7(b)) of the base member 200 are in a communicating state.

[0068] Subsequently, insert each of the small-diameter portions 504 of the three connecting pins 500 into the corresponding connecting pin insertion holes 411 until resistance is felt, that is, until the tapered portion 503 abuts against the peripheral edge of the opening of the first hole 213 of the base portion 210 of the base member 200. As a result, the small-diameter portion 504 protrudes below the bottom surface of the base member 200 (below the opening of the second hole 214).

[0069] Pinch the protruding portion of the small-diameter portion 504 and pull it in a direction away from the base member 200. Then, the tapered portion 503 contracts in the radial direction, and subsequently, the large-diameter portion 502 contracts until it can enter the first hole 213. Then, pull until the flange portion 501 abuts against the seating surface of the connecting pin insertion hole 411. A cross-sectional view in the pulled state is shown at the bottom of FIG. 10. In this state, the frictional force between the peripheral surface of the large-diameter portion 502 generated by the restoring force of the elastically contracted large-diameter portion 502 and the peripheral surface of the first hole 213 of the base member 200 takes effect, and the covering member 400, the core member 300, and the 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 screws (not shown) are formed on the upper surface of the notch portion 32a of the main body 32 corresponding to each of the screw insertion holes 215.

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

[0072] Then, by screwing and tightening the screws inserted through the screw insertion holes 215 into the female screws, the base member 200, and thus the entire demarcation comb 100, is fixed to the main body 32. Note that the head of the screw is buried in the hole chamfered portion of the screw insertion hole 215 and does not protrude from the peripheral surface of the opening of the screw insertion hole 215.

[0073] In the state of being attached to the main body 32, each of the first comb teeth portions 110 and each of the second comb teeth portions 120 are located at one end of each of the crossbars 38 as shown in FIG. 4(a). The cleat 36 of the step 12 is configured to include these plurality of first comb teeth portions 110, second comb teeth portions 120, and a plurality of crossbars 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, all of the comb teeth portions that constitute a part of the tip of the cleat of the step are formed of a rubber material. In contrast, the comb teeth portions (the first comb teeth portion 110 and the second comb teeth portion 120) of the demarcation comb 100 according to the embodiment are composed of plate-shaped core material portions (the first core material portion 320 and the second core material portion 330) and covering portions (the first covering portion 420 and the second covering portion 430) that cover the side surfaces and upper surfaces of the core material portions.

[0075] In other words, in the comb teeth portion of the embodiment, a covering portion made of a rubber material is reinforced by a core material portion (FIGS. 10 and 11). Therefore, compared with the conventional comb teeth portion entirely formed of a rubber material, the comb teeth portion of the embodiment is less likely to fall in the longitudinal direction of the tread 12 even if stepped on by a passenger.

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

[0077] (2) Since the upper end surfaces of the anti-slip portions 422 and 432 having a certain area are set at the same angle as the gradient of the escalator 10, the contact area with luggage such as a sliding suitcase can be ensured. Therefore, a larger frictional resistance can be provided compared with the conventional demarcation rubber, and the sliding speed of the luggage can be further suppressed.

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

[0079] (Modification) In the above embodiment, the first comb teeth portion 110 and the second comb teeth portion 120 are configured such that each of the first covering portion 420 and the second covering portion 430 covers the side surface and the upper surface of each of the first core material portion 320 and the second core material portion 330. However, it may also be configured to cover a part of the lower surface of the core material portion.

[0080] A perspective view of the core member 1300 of the demarcation comb 1100 according to the modified example is shown in Fig. 12(a), a side view thereof is shown in Fig. 12(b), and a side view of the core member 1300 cut at the base portion 1310 between the first core member portion 1320 and the second core member portion 1330 is shown in Fig. 12(c). In Fig. 12(c), the illustration of the portion appearing in the background of the second core member portion 1330 is omitted.

[0081] The demarcation comb 1100 has basically the same configuration as the demarcation comb 100, mainly except that the partial shapes of the core member and the covering member are different. Therefore, in Figs. 12 and 13, the components of the demarcation comb 1100 are labeled with four-digit numbers, and the last three digits are the same as the corresponding component numbers of the demarcation comb 100. The description thereof will only be mentioned as appropriate, and the following description will focus on the different parts.

[0082] The core member 1300 of the demarcation comb 1100 is configured by deleting the portions indicated by the dashed-dotted lines in Figs. 8(b), 8(c), and 8(d) from the protruding portions 322 and 332 of the core member 300. Otherwise, it is the same as the core member 300 of the demarcation comb 100.

[0083] In the demarcation comb 1100, due to the above deletion, as shown in Fig. 13, a gap is formed between the lower surfaces of the protruding portions 1322 and 1332 and the base member 1200. And the first covering member 1420 and the second covering member 1430 enter up to the portion of the gap.

[0084] That is, in the demarcation comb 1100, each of the first core member portion 1320 and the second core member portion 1330 includes partition-shaped portions 1321 and 1331 that protrude upward from the base member 1200, and protrusion portions 1322 and 1332 that protrude from each of the partition-shaped portions 1321 and 1331 with a gap from the base member 1200 to the side opposite to the crossbar 38 (FIG. 4(a)). Each of the first covering portion 1420 and the second covering portion 1430 is configured to cover the side surfaces and upper surfaces of the first core member portion 1320 and the second core member portion 1330 integrally, and to cover the tip portions of the protrusion portions 1322 and 1332 and the lower end surfaces facing the above-mentioned gap.

[0085] In the demarcation comb 1100, in the process of molding the covering member 1400 by injection molding using a mold, the core member 1300 is covered. That is, after setting the core member 1300 in the mold, by injecting liquid rubber into the cavity formed in the outer shape of the covering member 1400, the first core member portion 1320 and the second core member portion 1330 are covered.

[0086] According to the demarcation comb 1100 according to the modification example, in addition to the above-described effects of the demarcation comb 100, the following effects are achieved. For example, in the case of an escalator going up, there is a possibility that the anti-slip portions 1422 and 1432 of the covering portions (the first covering portion 1420 and the second covering portion 1430) may be rubbed up by the footwear of the passengers running up. However, by covering the first core member portion 1320 and the second core member portion 1330 up to the above-mentioned gap, it is possible to prevent the first covering portion 1420 and the second covering portion 1430 from peeling off upward from the first core member portion 1320 and the second core member portion as much as possible.

[0087] As described above, the present invention has been described based on the embodiments and their modification examples. However, it goes without saying that the present invention is not limited to the above-described forms, and for example, the following forms may also be possible. (1) In the above embodiment, the base members 200 and 1200 and the core members 300 and 1300 are separate, but the present invention is not limited to this, and they may be integrally formed. By doing so, it is possible to reduce the man-hours required for assembly compared to the case where they are separate. In the case of integral formation, for example, it can be formed by injection molding using a synthetic resin as a material.

[0088] (2) In the above embodiment, four demarcation combs 100 and 1100 are provided per step 12 (Fig. 2(c)), but the number of demarcation combs per step is not limited to this. It may be 1, 2, 3, or 5 or more. In any case, according to the number, the length of each demarcation comb is set, and demarcation combs are provided over the entire length of the step.

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

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

Industrial Applicability

[0091] The present invention can be suitably used for an escalator provided with a demarcation comb at the corner formed by a tread and a riser.

Explanation of Reference Numerals

[0092] 10 escalators 12 steps 28 treads 30 risers 32 main body 32a notch 100, 1100 demarcation combs 110, 1110 first comb teeth part 120, 1120 second comb teeth part 320, 1320 first core material part 330, 1330 second core material part 420, 1420 first covering part 430, 1430 second covering part

Claims

1. A demarcation comb is provided in a cutout formed in a corner between a step plate having a tread surface formed by a plurality of band-shaped bars arranged parallel to the width direction of the step in the main body of the step constituting an escalator, and a riser, A base portion fixed to the main body; Each of the bars has a plurality of comb teeth provided at one end thereof, Each of the comb teeth is a plate-shaped core portion including a partition-like portion protruding upward from the base portion and a protruding portion protruding from the partition-like portion toward the opposite side to the crosspiece with a gap between the base portion and the core portion; a covering portion made of a rubber material that covers the entire side surface and the upper surface of the core portion, and is integrated with the portion that covers the side surface and the upper surface to cover the tip end portion of the protrusion and a lower end surface that faces the gap; Including, A demarcation comb, characterized in that the step cleat is formed including the multiple comb tooth portions and the multiple crosspieces.

2. The demarcation comb according to claim 1 , wherein the core portion and the base portion are formed of different materials.

3. The demarcation comb according to claim 1 , wherein the core portion and the base portion are integrally formed.

4. 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 a 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 3 is provided in the cutout portion.

5. An escalator having a plurality of steps that are endlessly connected and run in a circular motion, 5. An escalator, comprising the escalator step according to claim 4, for each of said plurality of steps.

Images