KR100939876B1 - Step for escalator - Google Patents

Abstract

The escalator step is improved by adding grooves to the cleat surfaces, while at the same time an anti-slip function is achieved at the rear edge of the step. In the escalator step 1, the cleats 5a are formed at twice the pitch of the tread 4 on the riser 3. One or more grooves 6 are formed in the longitudinal direction on each cleat 5a of the riser 3. Also. An anti-slip surface 7 made of synthetic resin and having a defined width is quickly detachably attached on the rear edge of the step 2. Serrated irregularities 7c are formed on the upper surfaces of the cleats 7a and 7b of the anti-slip surface 7.

Risers, cleats, treads. Tooth surface, non-slip surface

Description

Escalator Stairs {STEP FOR ESCALATOR}

1 is a perspective view of an escalator step according to the present invention.

FIG. 2 is an enlarged view in circle A in FIG.

3A is a partial cross-sectional perspective view of the riser shown in FIG. 1 and FIG. 3B is a partial plan view.

4A is a partial cross-sectional perspective view of another example of the riser shown in FIG. 1 and FIG. 4B is a partial plan view.

5A is a partial cross-sectional perspective view of yet another example of the riser shown in FIG. 1 and FIG. 5B is a partial plan view.

6A is a partial cross-sectional perspective view of yet another example of the riser shown in FIG. 1 and FIG. 6B is a partial plan view.

7 is an exploded perspective view of the anti-slip member.

8 is a schematic perspective view of an assembly example of a non-slip member.

9 is a schematic perspective view of another example of assembly of the anti-slip member.

The present invention relates to an escalator step, and more particularly, to a step structure that improves safety.

The escalator staircase consists of a horizontal staircase and a riser that hangs downward from its rear edge and has a curved surface. By forming a cleat and a sawtooth stepping plate formed on the riser made of the cleat, it has a non-slip function provided in the step portion, and the pitch of the riser cleat is twice the stepping step step. It is effective to form the tooth surface of the cleat that engages the step tread against the riser to minimize the risk of products falling between the steps and the risk of rubber shoes or the like being dragged between the smoothed steps. Therefore, this has recently been applied mostly to the risers of the staircases for escalators.

However, there is still a case of shoes pulled between the steps due to the rubber part of the slippering shoe contacting and sliding with the tooth surface of the riser. Therefore, it is desirable to improve this to maintain safety on the escalator. In addition, the rear edge of the stepped portion formed by the stepping board is a risk of slipping the tip of the shoe slipping.

Japanese Patent Application No. Hei 1 [1989] -285581 discloses a solution for applying a surface finishing process to the surface of a riser by using a fluorine resin. Fluorine resins are expensive and increase the manufacturing cost of the escalator steps due to the process for coating the fluorine resin. However, there are additional problems such as lack of durability due to the fluorine resin which tends to wear easily. To reapply worn fluororesin, steps must be taken to disassemble and repair the entire escalator. This results in a lack of usability of the escalator and a related increase in maintenance costs during this time.

The present invention is accomplished by considering the situation described above and improves the riser to minimize the risk of drag-in between the steps and at the same time improves the steps for the escalator by providing an anti-slip function at the rear edge of the steps. .

In order to solve the problems described above, the present invention is directed downward with a curved surface from the rear edge of the horizontal staircase while allowing one or more grooves to be formed in the longitudinal direction of the riser cleat and the step portion for the escalator having the tooth surface made of the cleats. Provide a hanging riser.

Thus, the smooth side of the riser cleat is removed due to the grooves provided in each cleat forming the tooth surface of the riser, and the drag of the rubber shoe can be minimized or prevented.

The elevator staircase is also provided with a riser having a curved surface suspended downward from the rear edge of the horizontal staircase and a non-slip surface of a predetermined width and fixed length detachably mounted to the rear edge of the staircase.

Thus, the risk of unintentionally slipping of the shoe can be prevented because the anti-slip function is provided at the rear edge of the step portion.

In a particular embodiment, the anti-slip surface is made of a synthetic resin body of approximately the same width as the width of a predetermined demarcation applied to the fixed length and the outer periphery of the step, and is a material having a greater frictional resistance than the metal. In addition, the jagged irregularities are formed on the upper surface of the cleats of the anti-slip surface. In addition, the height of the cleats of the anti-slip surface is formed higher than the tread. In addition, the non-slip surface may be screwed to the reinforcement plate fixed in the cleat cutout of the step portion.

The following embodiments of the present invention will be described with reference to the accompanying drawings. The escalator step 1 shown in Figs. 1 and 2 has a step 2 which maintains a horizontal plane, and a riser 3 which is suspended downward in a bent shape from the rear edge of the step 2, A step surface 4 formed of a plurality of cleats 4a is formed on the upper surface of the part 2, and a tooth surface formed of a plurality of cleats 5a of twice the pitch of the step plate 4 on the surface of the riser 3. (5) is formed. Grooves 6 are formed on each cleat 5a forming the tooth surface 5, and the non-slip surface 7 is formed of the escalator step 1 where the tread plate 4 and the tooth surface 5 meet. Removably mounted at the rear edge.

As shown in Figs. 3 to 6, the grooves 6 are two to three grooves formed in the longitudinal direction on the surface of each cleat 5a, which is composed of the tooth surface 5. As shown in Figs. 3 and 4 show cases where the riser 3 is made of a thick plate such as die casting aluminum, and the examples in FIGS. 5 and 6 show that the riser 3 is made of a thin stainless steel plate or the like. The cases when constructed are shown. With respect to the grooves 6, two are formed parallel along the cleat 5a in FIGS. 3 and 5 or three are formed parallel along the cleat 5a in FIGS. 4 and 6. The preferred dimensions for each part shown in Figs. 3B-6B are described in detail in the section of application examples.

The grooves 6 are simultaneously formed by die casting or press work. Alternatively, it is possible to form the grooves 6 in the cleats 5a by machining after forming the riser 3 by die casting. Also, the plurality of strip grooves 6 in each cleat 5a is not limited to that shown in the figures. That is, all that is needed is to make the area of the surface where the rubber shoe contacts as small as possible in addition to the two die faces of each strip bump 5a and not to deform the rubber part of the shoe when contact is made.

In addition, the anti-slip surface 7 is a part of the tread plate 4 coated with a mark consisting of a yellow indicator indicating the lateral boundary of the step portion at the outer circumference of the step portion 2 as shown in FIG. To 3 bumps 4a], except that the material is a synthetic resin molded body having a frictional resistance greater than that of metal and having a fixed length L and a width W substantially equal to the width of the partition. Therefore, when the synthetic resin molded body is formed of a yellow material, it is possible to replace the compartment at the rear edge of the stepped portion.

Alternatively, the cleats 7a having a height slightly higher than the tread 4 and having the same pitch spacing as the tread 4, and the cleats adjacent to the cleat 7a with the same pitch spacing as the cleats 5a ( 7b) is formed in such a synthetic resin molded body, and at the same time, the jagged irregularities 7c are formed on the upper surfaces of the strip bumps 7a, 7b as indicated in the circle in the figure. The cleats 7a and 7b may be formed slightly higher than the cleats 4a so that the tip of the shoe is caught.

To mount this non-slip surface 7 on the escalator step 1, the screw holes 8, 8 are penetrated between the cleats 7a, 7b at the upper surface of the non-slip surface 7 and the cleat cutouts. 11 is formed at the rear edge of the step 2. If possible, it is preferable to provide the screw holes 12a and 12a with the cleat cutouts 11 compliant with the screw holes of the anti-slip member 7.

If not possible, the reinforcement plate 12 is provided in the cleat cutout 11 as shown in simplified FIGS. 8A and 8B. This reinforcing plate 12 is provided in the horizontal portion 12b with screw holes 12a, 12a that conform to the screw holes 8, 8 penetrating the anti-slip surface 7 at the end of the curved surface portion 12c. Is formed by. The reinforcement plate 12 is properly fixed such that the curved surface portion 12c contacts the inside of the surface 3 of the riser, and the upper surface of the horizontal portion 12b is the upper end surface on the riser 3 of the cleat cutout 11. And remain at about the same height. Thus, engagement with the reinforcing plate 12 is done by inserting the anti-slip surface 7 into the cleat cutout 11 and engaging the fasteners 13, 13 into the screw holes 8, 8.

Alternatively, as illustrated in FIGS. 9A and 9B, which are similarly simplified, an inclined reinforcement plate 14 that joins the inner surfaces of the riser 3 and the step 2 is provided with a cleat cutout (eg, by welding or the like). 11) is combined with the interior. The contact surface 9 is formed by cutting the lower angled portion on the side of the step 2 of the anti-slip surface 7 so as to be parallel to the inclination angle of the reinforcing plate 14. The screw holes 8 and 8 are inclinedly penetrated so as to be perpendicular to the reinforcement plate 14 fasteners 13 which are inclinedly coupled into the screw holes 8 and 8, and the non-slip surface 7 and the reinforcement plate 14 are Combined.

Other alternatives include forming an extension on the non-slip surface 7. Instead of using fasteners at the bottom of the anti-slip surface 7, the extension can be inserted into the hole 12a and secured by a ring or the like on the rear side of the step 2. Other alternatives include extensions that press-fit and expand after insertion into the hole 12a. In these cases, disassembly of the entire escalator during repairs, such as when replacing the non-slip surface (7), is in contrast to a configuration such as replacement of the non-slip surface, as opposed to a configuration that uses screwing as much as possible without disassembling the entire escalator. There is a disadvantage that is required.

The non-slip surface 7 manufactures a predetermined predetermined length member, secures the length member to the cleat cutout portion 11 as an extension portion, and slips by appropriately cutting when the cleat cutout portion 11 is insufficient in length. The length of the prevention surface can be adjusted.

The dimensions proposed in Figures 3b, 4b, 5b, and 6b are approximately 6.00 mm, b 1.00 mm, c 1.50 mm, d 2.50 mm, e 6.00 mm, f 7.00 mm, g 1.00 mm, h is 3.00 mm and i is 0.3 mm. Further, the radius of curvature at the awl of the corrugation in the strip bump 5a if the groove 6 has two grooves is 0.05 mm, and the corrugation at the strip bump 5a if the groove 6 has three grooves. The radius of curvature of the awl is 0.03 mm.

As described above, according to the present invention, one or more grooves are provided on the surface of each cleat forming the tooth surface of the riser so that even if the rubber shoe or the like is in contact with the cleat, the grooves do not cause adhesion by creating an air layer, Thus, the risk of dragging shoes between the steps is reduced or eliminated, and the maintenance costs are significantly reduced compared to repainting the steps with fluorine resin. In addition, an anti-slip surface is provided at the rear edge of the step portion to prevent the shoe from slipping at the rear edge of the step portion.

Further, the anti-slip surface is formed with a fixed length and the same width as the defined partition, and naturally has a frictional resistance greater than that of metal, besides being able to be made inexpensively with a synthetic resin and also functioning as a partition. The synthetic resin material makes the effective anti-slip function obvious.

In addition, the cleats in the non-slip member are made slightly higher than the height of the treads so that the shoe tips can be engaged. In addition, irregularities are formed in the upper surface to create a more effective anti-slip function.

Furthermore, the non-slip surface is removably configured at the cleat cutout of the steps so that if a part of the non-slip member is broken, this part can be replaced immediately, resulting in a large reduction in maintenance costs compared to replacing the entire step. Can be.

According to the present invention, as one or more grooves are provided on each cleat surface forming the tooth surface of the riser, even if rubber shoes or the like come into contact with the cleats, these grooves do not come into close contact by creating an air layer, and thus between stepped portions. There is an effect that can reduce the risk of dragging shoes and the like.

Claims (1)

Escalator stairs, Treadmill, A riser extending downwardly from the rear edge of the staircase and comprising a toothed surface with cleats, One or more grooves formed longitudinally on each cleat surface of the riser, the one or more grooves extending substantially throughout the width of each cleat surface.

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