JP2009196736A - Footstep for passenger conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a footstep for a passenger conveyer, easily checking a degree of ware of a coating film before bare metal is exposed. <P>SOLUTION: In the footstep for the passenger conveyor, a plurality of footsteps each having a step surface with projections and recesses extended in a traveling direction are endlessly connected with each other, and the plurality of footsteps are circulated and moved from one doorway to the other doorway. The foot step comprises: a footstep body having a step surface with projections and recesses; and a coating layer 2b coating at least top parts 22b of projection parts 22a of the step surface of the footstep body. The coating layer 2b includes: a first coating layer 37 laminated on at least top parts 22b of the projection parts 22a; and second coating layer 36 laminated on at least first coating layer 37. The second coating layer 36 is dyed with the color different from the color of the first coating layer 37. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a passenger conveyor step used in a passenger conveyor that circulates and moves a number of steps connected endlessly.

  Conventionally, in passenger conveyors such as escalators and moving walkways, a number of steps (steps) connected endlessly by a drive chain are circulated and moved to the outer periphery of the balustrade standing on the left and right sides of these steps. For example, in the case of an escalator, a passenger boarded from the entrance / exit on one floor is transported to the entrance / exit on the other floor.

  On the tread surface of a step used for a passenger conveyor, a plurality of irregularities are usually formed in the traveling direction. In the case where the entire tread surface of the step is covered with the paint, the paint may be removed only by the polishing process after applying the paint to the entire tread surface. The surface that actually comes in contact with passenger shoes is the top of the convex part, and the paint applied to the top of the convex part is partially peeled off due to wear, causing problems such as impairing the aesthetics of the step. Only the paint applied to the top of the convex part is removed from the beginning to expose the bare metal.

In addition, a moving step is known in which the entire tread surface of a step is covered with a tread membrane made of a synthetic resin material instead of paint, and the tread membrane is fixed to the main body of the step with a caution band at both ends of the tread (Patent Literature). 1). Here, the tread film on the upper surface of the convex portion is left without being polished.
JP 2000-296978 A

  If the step metal is exposed on the tread surface of the step, corrosion or the like may occur and the quality of the metal may be reduced, and the life of the step may be shortened. Therefore, it is necessary to take some measures before the film such as paint coated on the metal is worn away and the metal is exposed.

  Even if the tread surface is covered with a paint or a synthetic resin material, it is not easy to know the degree of wear of the paint or the synthetic resin material, so the paint or the synthetic resin material may be worn away and the bare metal may be exposed. There is.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a passenger conveyor step that can easily know the degree of wear of the coating film before the bare metal is exposed. is there.

  A feature of the present invention is a passenger conveyor in which a plurality of steps having a tread surface formed with irregularities in the traveling direction are connected endlessly, and the plurality of steps are circulated from one boarding gate to the other boarding gate. The step used includes: a step body having a tread surface on which irregularities are formed; and a coating layer covering at least the top of the convex portion of the tread surface of the step body, wherein the coating layer is at least A first coating layer laminated on the top of the convex portion; and a second coating layer laminated on at least the first coating layer, the second coating layer comprising: a first coating layer; It is colored in different colors.

  According to the feature of the present invention, since the first and second coating layers having different colors are laminated on the base metal (step body), when the second coating layer is removed by wear, Since a different first coating layer is exposed, wear removal of the second coating layer can be easily visually confirmed, so that measures such as repair can be taken before the bare metal is exposed.

  In the aspect of the present invention, the coating layer may further include a third coating layer laminated between the top of the convex portion and the first coating layer. In this case, the color combination of the first to third coating layers may be at least two colors. The degree of deterioration of the coating layer can be visually confirmed in stages by increasing the number of coating layers.

  The coating layer may be formed only on a part of the step surface of the step body. Thereby, the material cost of a coating layer, the work cost of a coating process, etc. can be reduced.

  Alternatively, the coating layer may be formed on the entire tread surface of the step body. Thereby, the state of wear can be visually confirmed about the whole tread.

  The coating layer may be any one of a coating film, a resin film, a plating film, a chemical conversion film, and an anodizing film.

  The present invention functions particularly effectively when the step body is made of a corrosive metal such as a magnesium alloy.

  According to the passenger conveyor steps of the present invention, it is possible to easily know the degree of wear of the coating film before the bare metal is exposed.

  Embodiments of a passenger conveyor step of the present invention will be described below with reference to the drawings. Here, an escalator will be described as an example of a passenger conveyor. In the drawings, the same portions are denoted by the same reference numerals and description thereof is omitted.

  With reference to FIG. 1, the whole structure of the escalator 1 concerning embodiment of this invention is demonstrated. The escalator 1 is installed in a building having upper and lower floors or outdoors, and conveys a load between the upper floor and the lower floor, and a plurality of steps (passenger conveyor steps) by a drive chain (not shown). 2 are connected endlessly, and the plurality of steps 2 are circulated and moved from one boarding / exiting port 5U to the other boarding / exiting port 5L. In the escalator 1 shown in FIG. 1, a passenger who gets in from the entrance / exit 5U on the upper floor is conveyed to the entrance / exit 5L on the lower floor. On the surface (tread surface) on which passengers of the plurality of steps 2 ride, a plurality of irregularities are formed in the traveling direction.

  A pair of passenger conveyor trusses 7 are installed on the left and right sides of the step 2 along the traveling direction of the step 2. The pair of passenger conveyor trusses 7 are arranged to face each other so as to sandwich the step 2 so as to be movable with a slight gap. A balustrade 3 is installed above each of the pair of passenger conveyor trusses 7, and a handrail 4 is arranged on the outer periphery of the balustrade 3. By moving the handrail 4 in synchronization with the steps 2, it is possible to transport passengers who have entered from the entrance / exit 5U on the upper floor to the entrance / exit 5L on the lower floor.

  At the entrance / exit 5L on the lower floor, the step 2 enters under the entrance / exit board 5a installed at the entrance / exit 5L, rotates about 180 degrees, and moves toward the entrance / exit 5U on the upper floor. In order to prevent a passenger from getting on the boarding / alighting board 5a from the step 2 or getting caught in the boarding / alighting board 5a, or at the front end of the boarding / alighting board 5a, Com 6L is provided. The comb 6L is fastened and fixed to the boarding / alighting plate 5a by a countersunk screw. A plurality of comb teeth are formed at the tip of the comb 6L, and the plurality of comb teeth mesh with the unevenness (cleat) of the tread surface of the step 2 in a non-contact manner, thereby getting on and off the passenger's feet and foreign objects on the step 2 It scoops up on board 5a and prevents a passenger's foot, a foreign object, etc. from being pinched between step 2 and boarding board 5a.

  A specific configuration of the step 2 in FIG. 1 will be described with reference to FIG. The step 2 according to the embodiment of the present invention includes a step body 2a shown in FIG. 2 and a coating layer (not shown) that covers the step surface 22 of the step body 2a. The step body 2a includes a tread surface 22 on which a passenger puts his / her foot, a riser surface 23 positioned at a stepped portion of another adjacent step 2, a pair of left and right rear wheel rollers 25, a tread surface 22, a riser surface 23, and a rear And a structural frame 4 that supports the ring roller 25. The tread surface 22 and the riser surface 23 are each formed with a plurality of irregularities in order to prevent passengers' feet and foreign objects from being caught between the step 2 and the boarding / alighting plate 5a.

  With reference to FIG. 3, the detailed cross-sectional structure of the tread surface 22 of FIG. 2 is demonstrated. For example, as shown in FIG. 3A, the coating layer 2b covering the step surface 22 of the step body 2a includes a first coating layer 37 laminated on the top portion 22b of the convex portion 22a, and the step body 2a. The entire surface 22, that is, the top portion 22 b of the convex portion 22 a and the second coating layer 36 covering the side surface and the bottom surface of the concave portion formed between the adjacent convex portions 22 a are provided. The second coating layer 36 is colored in a color different from that of the first coating layer 37, and is laminated on the first coating layer 37 at the top 22 b of the convex portion 22 a, and in other parts of the step body 2 a. Directly stacked on top.

  The portion of the tread surface 22 of the step 2 that actually contacts the shoe of the passenger is mainly the top portion 22b of the convex portion 22a. When the second coating layer 36 exposed on the top portion 22b of the convex portion 22a is worn and removed by contact with passenger shoes or the like, as shown in FIG. The first coating layer 37 laminated under the layer 36 is exposed. Since the first coating layer 37 is colored in a color different from that of the second coating layer 36, it can be easily recognized that the second coating layer 36 has been worn away and removed. Therefore, before all the coating layers 2b coated on the step main body 2a (base metal) are removed by wear and the base metal is exposed, it is possible to visually recognize the wear state of the coating layer 2b. Therefore, it is possible to perform repairs such as applying the same color paint as the second coating layer 36 before the bare metal is exposed.

  Further, as shown in FIG. 3C, the coating layer 2 b may further include a third coating layer 38 laminated between the top 22 b of the convex portion 22 a and the first coating layer 37. . In this case, the color combination of the first coating layer 37, the second coating layer 36, and the third coating layer 38 may be at least two or more colors.

  Specifically, the first to third coating layers 36 to 38 may all be worn in different colors. For example, the second coating layer 36 may be black, the first coating layer 37 may be yellow, the third coating layer 38 may be colored red, and the coating layer 2b may be composed of a combination of three colors. Thereby, the degree of deterioration of the coating layer 2b can be visually recognized in a stepwise manner.

  Alternatively, the first to third coating layers 36 to 38 may be colored with a combination of two colors. For example, the second coating layer 36 and the first coating layer 37 may be colored with the same color (black), and the third coating layer 38 may be colored with a different color (yellow).

  In the case where the second coating layer 36 and the first coating layer 37 are the same color, the second coating layer 36 has a relatively low material and coating cost, but has a relatively high durability against peeling and abrasion. A low material is used, and a material having a relatively high durability against peeling and abrasion is used as the first coating layer 37 although the material and the cost of the coating process are relatively expensive. Thereby, it is possible to improve the durability against peeling and abrasion while suppressing the cost of the entire coating layer 2b covering the tread surface 22. Furthermore, even if the first coating layer 37 on the top portion 22b of the convex portion 22a is removed due to peeling or abrasion, the second coating layer 36 and the first coating layer 37 are formed on the top portion 22b of the convex portion 22a. Since the third coating layer 38 having a different color is coated, it is possible to know the degree of wear of the coating layer 2b before the bare metal (step body 2a) is exposed, and to take measures such as repair. It becomes possible.

  In the example of FIG. 3, the case where the coating layer 2b covering the portion other than the top portion 22b of the convex portion 22a has the single-layer structure of the second coating layer 36 has been described, but the present invention is not limited to this. The entire tread surface 22 of the step body 2a may be covered with a coating layer having a laminated structure of two or more layers. Further, not only the tread surface 22 but also the riser surface 23 is formed with a coating film having the same configuration as the above-described coating layer 2b on a portion where the base metal (step body 2a) may be exposed due to peeling or abrasion. It doesn't matter.

  Further, in order to alert the passengers so that the passenger's feet or the like are not caught in the gap between the passenger conveyor truss 7 and the step 2 or between the steps 2, both side edges in the traveling direction of the tread surface 22 and the adjacent step side portions In general, a caution sign is formed, and the passenger usually rides on the tread surface 22 portion excluding both side edges in the traveling direction and the adjacent step side part according to the caution sign. Therefore, the coating layer 2b having a multilayer structure is formed only in the region of the tread surface 22 (safety boarding / alighting region) excluding both side edges and adjacent step side portions in the traveling direction, and is formed on both side edges and adjacent step side portions in the traveling direction. May form a coating layer having a single layer structure (for example, only the second coating layer 36). Further, the coating layer 2b having a multilayer structure may be formed only in a narrower region (for example, a region narrower than the safe boarding / alighting region: the central region). Thereby, the material cost of the coating layer 2b, the work cost of a coating process, etc. can be reduced. Of course, the coating layer 2b having a multilayer structure may be formed not only on the safe boarding / alighting region and the central region of the tread surface 22, but also on both side edges in the traveling direction and adjacent step side portions. The wear state of the entire tread 22 can be visually confirmed.

  Here, aluminum, stainless steel, magnesium alloy, or the like can be applied as the material of the step body 2a. Aluminum and stainless steel are metals that are relatively resistant to corrosion, while magnesium alloys are metals that are relatively susceptible to corrosion. When the step body 2a is made of a corrosive metal such as a magnesium alloy, coating the base metal (step body 2a) with the coating layer 2b having a multilayer structure can be an effective technical means for suppressing corrosion.

  The coating layer 2b may be any film of a coating film, a resin film, a plating film, a chemical conversion film, and an anodizing film. The coating film is a film formed by applying a paint. The plating film is a metal thin film formed by plating. It is a film formed by chemical conversion treatment (treatment that causes a chemical reaction to cause a chemical reaction to give properties different from those of the original material, such as corrosion resistance and affinity with paint). An anodized film is a film formed by anodizing.

  According to the embodiment of the present invention, the following effects can be obtained.

  Since the first coating layer 37 and the second coating layer 36 having different colors are laminated on the base metal (the step body 2a), when the second coating layer 36 is removed by wear, the colors are different. Since the first coating layer 37 is exposed, wear removal of the second coating layer 36 can be easily visually recognized, so that measures such as repair can be taken before the bare metal is exposed.

  The coating layer 2b further includes a third coating layer 38 stacked between the top portion 22b of the convex portion 22a and the first coating layer 37, and the color combination of the first to third coating layers is at least two or more. May be the color. The degree of deterioration of the coating layer 2b can be visually confirmed in stages by making the coating layer 2b multilayer.

  The coating layer 2b may be formed only on a part of the step surface 22 of the step body 2a. Thereby, the material cost of the coating layer 2b, the work cost of a coating process, etc. can be reduced.

  Alternatively, the coating layer 2b may be formed on the entire tread surface 22 of the step body 2a. Thereby, the condition of wear can be visually confirmed with respect to the entire tread surface 22.

  As described above, the present invention has been described according to one embodiment. However, it should not be understood that the description and the drawings, which form a part of this disclosure, limit the present invention. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  In the embodiment of the present invention, the escalator 1 that conveys passengers boarding from the upper floor entrance / exit 5U to the lower floor entrance / exit 5L has been described as an example, but conversely, the lower floor entrance / exit 5L It is applicable also to the escalator which conveys the passenger boarded from to the entrance / exit 5U of the upper floor. In addition, the present invention can be applied not only to the escalator 1 but also to a moving sidewalk.

  Thus, it should be understood that the present invention includes various embodiments and the like not described herein. Therefore, the present invention is limited only by the invention specifying matters according to the scope of claims reasonable from this disclosure.

Sectional drawing which shows the whole structure of the escalator 1 concerning embodiment of this invention. The perspective view which shows the specific structure of the step 2 of FIG. 3A is an enlarged cross-sectional view showing an example of the convex portion 22a of the tread surface 22 of FIG. 2, and FIG. 3B is a diagram showing that the second coating layer 36 exposed on the top portion 22b of the convex portion 22a is worn away and removed. FIG. 3C is an enlarged cross-sectional view showing another example of the convex portion 22a of the tread surface 22 of FIG.

Explanation of symbols

1 ... Escalator (passenger conveyor)
2 ... Steps (passenger conveyor steps)
2a ... Step body 2b ... Coating layer 3 ... Railing 4 ... Structural frame 5L, 5U ... Boarding gate 5a, 5b ... Boarding board 6L, 6U ... Com 7 ... Passenger conveyor truss 22 ... Tread 22a ... Convex portion 22b ... Top 23 ... Riser surface 25 ... rear wheel roller 36 ... second coating layer 37 ... first coating layer 38 ... third coating layer

Claims (6)

A step body having a tread surface with irregularities formed;
A coating layer covering at least the top of the convex part of the tread surface of the step body;
With
The coating layer is
A first coating layer laminated on at least the top of the convex part;
A second coating layer laminated on at least the first coating layer and colored in a different color from the first coating layer;
A passenger conveyor step characterized by comprising: The coating layer includes a third coating layer laminated between the top of the convex portion and the first coating layer,
The step for a passenger conveyor according to claim 1, wherein the combination of colors of the first to third coating layers includes at least two colors.   3. The passenger conveyor step according to claim 1, wherein the coating layer is formed only in a part of a step surface of the step body. 4.   3. The passenger conveyor step according to claim 1, wherein the coating layer is formed on the entire step surface of the step body. 4.   The passenger conveyor according to any one of claims 1 to 4, wherein the coating layer is any one of a coating film, a resin film, a plating film, a chemical conversion film, and an anodizing film. Steps for use.   The step for a passenger conveyor according to any one of claims 1 to 5, wherein the step body is made of a magnesium alloy.

Images