Rail transit platform threshold

Abstract

The rail transit platform threshold comprises a first threshold assembly, a second threshold assembly and a step missing prevention assembly, the second threshold assembly and the first threshold assembly are arranged in a spaced mode, a threshold guide groove is defined between the second threshold assembly and the first threshold assembly, and the threshold guide groove is used for being in sliding connection with a sliding door. The second doorsill assembly comprises a second doorsill lining and a second doorsill wrapping plate, and the second doorsill wrapping plate wraps the second doorsill lining and is connected with the second doorsill lining; the step missing prevention assembly is arranged on the side, away from the first threshold assembly, of the second threshold assembly in the horizontal direction and connected with the second threshold lining, and a gap is formed between the step missing prevention assembly and the second threshold wrapping plate. In this way, on one hand, the size of the threshold guide groove in the rail transit platform threshold can be guaranteed, clamping stagnation caused by movement of the sliding door on the threshold guide groove is avoided, on the other hand, the precision requirement during manufacturing of the second threshold wrapping plate is lowered, and production and preparation of the second threshold wrapping plate are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field related to preventing rail transit platform thresholds from being stepped on, and particularly relates to a rail transit platform threshold. Background Art

[0002] At present, urban rail transit is developing extremely rapidly, and product requirements are becoming more stringent, especially in terms of the smoothness and safety of sliding doors. The limited distance between subway platform doors and trains is generally 1600 (±100) mm for underground stations and 1610 (±100) mm for ground stations. This distance is set to ensure that the train maintains an appropriate distance from the edge of the platform when entering the station to avoid scratches, but it also creates a certain gap between the train and the platform door. In order to ensure the safety of passengers when getting on and off the train, prevent passengers from accidentally stepping into the gap between the platform and the train, and avoid personal injury or falling objects, anti-stepping devices are usually installed between platform doors (sliding doors, emergency doors).

[0003] Currently, there are two main installation schemes for anti-stepping devices: installation on the platform slab civil structure and the platform door threshold (sliding door, emergency door) track side, among which installation on the platform door threshold (track side) is the mainstream scheme.

[0004] At present, one of the mainstream structures for installing the anti-stepping device on the side of the platform door threshold (sliding door and emergency door) track is to cover the platform door threshold with a stainless steel plate, and fix the anti-stepping device to the plate on the side of the platform door track by fastening screws. This structure is simple and convenient to install. However, due to the manufacturing errors in the bending size and bending angle of the threshold plate, when the anti-stepping device is fixed to the side of the threshold track, it is easy to squeeze the plate, causing the other folded edge of the threshold plate to deviate, causing the sliding door guide groove to narrow or deform, and bringing the risk of jamming and obstruction to the operation of the sliding door. Utility Model Content

[0005] In view of this, it is necessary to provide a rail transit platform threshold that can ensure the installation dimensions of the threshold guide groove and solve the problem of sliding door operation jamming after the anti-stepping assembly is installed.

[0006] A rail transit platform threshold, the rail transit platform threshold comprising:

[0007] A first threshold assembly is installed on one side of the platform;

[0008] The second threshold component is installed on one side of the track and is spaced apart from the first threshold component. Moreover, a threshold guide groove is formed between the second threshold component and the first threshold component, and the threshold guide groove is used for slidably connecting with a sliding door. The second threshold component includes a second threshold inner lining and a second threshold cladding, and the second threshold cladding wraps around the second threshold inner lining and is connected to the second threshold inner lining;

[0009] The anti-trip component is arranged on the side of the second threshold component away from the first threshold component in the horizontal direction and is connected to the second threshold inner lining. Among them, a gap is formed between the anti-trip component and the second threshold cladding.

[0010] It can be understood that since a gap is formed between the installed anti-trip component and the second threshold cladding, the installation of the anti-trip component will not cause extrusion to the second threshold cladding. On the one hand, this can ensure the size of the threshold guide groove on the threshold of the rail transit platform and avoid jamming when the sliding door moves on the threshold guide groove. On the other hand, it also reduces the precision requirements during the manufacturing of the second threshold cladding and facilitates the production and preparation of the second threshold cladding.

[0011] In one embodiment, the second threshold cladding has a first folded edge, and the first folded edge abuts against the side plate of the second threshold inner lining away from the first threshold component;

[0012] Among them, a notch is formed on the anti-trip component, and a part of the first folded edge is inserted into the notch, so that a gap is formed between the first folded edge and the anti-trip component.

[0013] It can be understood that the notch formed on the anti-trip component is used to avoid the first folded edge on the second threshold cladding, so as to ensure that the anti-trip component will not cause extrusion to the second threshold cladding when installed on the second threshold inner lining.

[0014] In one embodiment, the anti-trip component includes an anti-trip plate and a flexible support member. The anti-trip plate abuts against the side plate and is connected to the side plate. Among them, a first preset gap is formed between the anti-trip plate and the first folded edge in the vertical direction;

[0015] The flexible support member is connected to the anti-trip plate. Among them, a second preset gap is formed between the flexible support member and the first folded edge in the horizontal direction.

[0016] It can be understood that through the above structural settings, the anti-trip plate and the flexible support member that make up the anti-trip component will not contact the first folded edge on the second threshold cladding, and it is ensured that the installation of the anti-trip component will not squeeze the second threshold cladding.

[0017] In one embodiment, the second preset gap is set to D, where D > 0.5 mm;

[0018] And / or, the first preset gap is set to G, where G > 2 mm.

[0019] In one embodiment, the rail transit platform threshold further includes fastening bolts and lock nuts. The fastening bolts penetrate through the anti-trip board and the side plate and are screwed with the lock nuts for fixing the anti-trip board to the side plate.

[0020] It can be understood that the threaded fit structure between the fastening nut and the lock nut is used to realize the installation of the anti-trip pedal on the side plate, which facilitates the installation of the anti-trip component on the second threshold lining.

[0021] In one embodiment, the rail transit platform threshold further includes a lock washer. The lock washer is sleeved on the fastening bolt and abuts against the lock nut;

[0022] Wherein, one side surface of the lock washer away from the lock nut abuts against the side plate or the anti-trip board.

[0023] It can be understood that the structural arrangement of the lock washer can prevent loosening when the lock nut locks the fastening bolt, which can improve the stability of the anti-trip component after being installed on the second threshold lining.

[0024] In one embodiment, the flexible support is integrally injection-molded on the anti-trip board.

[0025] It can be understood that since the flexible support is integrally injection-molded on the anti-trip board, it is convenient for the manufacture of the anti-trip component.

[0026] In one embodiment, the anti-trip board and the flexible support together form a receiving space, and the receiving space can accommodate the fastening bolt.

[0027] It can be understood that using the receiving space to accommodate the fastening bolt can meet the assembly requirements when the fastening bolt passes through the anti-trip board and the side plate.

[0028] In one embodiment, the second threshold cladding further has a second folded edge. The second folded edge abuts against the second threshold lining, and the second folded edge and the first folded edge are arranged on both sides of the second threshold lining;

[0029] Wherein, the length of the second folded edge in the vertical direction is greater than the length of the first folded edge in the vertical direction.

[0030] In one embodiment, the second threshold lining further includes a bottom mounting plate, which is disposed at the bottom of the second threshold assembly in the vertical direction and is connected to the side plate for carrying the second threshold wrapper;

[0031] Wherein, the side plate of the second threshold lining away from the first threshold assembly extends downward relative to the bottom mounting plate in the vertical direction, and at least a part of the side plate protruding from the bottom mounting plate abuts against the anti-trip component.

[0032] It can be understood that through the above structural arrangement, the side plate on the second threshold lining has sufficient space to assemble the anti-trip component, which can meet the use requirements for the assembly of the anti-trip component on the side plate.

[0033] Due to the application of the above technical solution, the present utility model has the following advantages compared with the prior art:

[0034] For the rail transit platform threshold claimed in the present application, since there is a gap formed between the installed anti-trip component and the second threshold wrapper, the installation of the anti-trip component will not cause extrusion to the second threshold wrapper. On the one hand, this can ensure the size of the threshold guide groove on the rail transit platform threshold and avoid jamming when the sliding door moves on the threshold guide groove. On the other hand, it also reduces the precision requirements for the manufacture of the second threshold wrapper and facilitates the production and preparation of the second threshold wrapper. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 It is a schematic structural diagram of the rail transit platform threshold provided by an embodiment of the present application.

[0037] Figure 2 It is Figure 1 the enlarged view of part A in

[0038] Figure 3 It is Figure 1 the enlarged view of part B in

[0039] Reference numerals: 100, threshold of rail transit platform; 10, first threshold assembly; 11, first threshold; 12, first threshold lining; 13, first threshold cladding; 20, second threshold assembly; 21, second threshold lining; 211, side plate; 22, second threshold cladding; 221, first hem; 222, second hem; 23, second threshold; 24, bottom mounting plate; 30, anti-trip component; 301, notch; 302, accommodation space; 31, anti-trip plate; 32, flexible support member; 40, sliding door; 41, guide shoe; 51, fastening bolt; 52, lock nut; 53, anti-loosening gasket; 101, threshold guide groove. Detailed implementation manners

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] It should be noted that when an element is referred to as being "provided on" another element, it can be directly provided on the other element or there may also be an intermediate element. When an element is considered to be "provided on" another element, it can be directly provided on the other element or there may be an intermediate element at the same time. When an element is considered to be "fixed to" another element, it can be directly fixed to the other element or there may be an intermediate element at the same time.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0043] Such as Figure 1 、 Figure 2As shown in the figure, the platform threshold 100 of rail transit provided by an embodiment of the present application includes a first threshold component 10, a second threshold component 20, and an anti-trip component 30. The second threshold component 20 is arranged at an interval from the first threshold component 10, and a threshold guide groove 101 is formed between the second threshold component 20 and the first threshold component 10. The threshold guide groove 101 is used for sliding connection with a sliding door 40. The second threshold component 20 includes a second threshold inner lining 21 and a second threshold cladding 22. The second threshold cladding 22 wraps around the second threshold inner lining 21 and is connected to the second threshold inner lining 21. The anti-trip component 30 is arranged on the side of the second threshold component 20 away from the first threshold component 10 in the horizontal direction and is connected to the second threshold inner lining 21. Among them, a gap is formed between the anti-trip component 30 and the second threshold cladding 22. Here, a guide shoe 41 is connected to the sliding door 40, and the guide shoe 41 can be slidably matched with the threshold guide groove 101, so that the sliding door 40 can slide with the sliding match between the guide shoe 41 and the threshold guide groove 101 as a guide.

[0044] As can be seen from the above, when the anti-trip component 30 is installed on the second threshold inner lining 21, it will not contact the second threshold cladding 22, so as not to cause extrusion on the second threshold cladding 22. On the one hand, this can ensure the size of the threshold guide groove 101 on the rail transit platform threshold 100 and avoid jamming when the sliding door 40 moves on the threshold guide groove 101. On the other hand, it also reduces the precision requirements for manufacturing the second threshold cladding 22 and facilitates the production and preparation of the second threshold cladding 22.

[0045] It should be noted that in the above rail transit platform threshold 100, the first threshold component 10 is arranged on the side of the rail transit platform threshold 100 facing the platform, while the second threshold component 20 is arranged on the side of the rail transit platform threshold 100 facing the track. And during the on-site construction process of the rail transit platform threshold 100, according to the construction requirements, the threshold guide groove 101 between the first threshold component 10 and the second threshold component 20 is formed first, and then the anti-trip component 30 is assembled to the second threshold component 20. And the anti-trip component 30 of the present application will not push and squeeze the second threshold cladding 22 when the second threshold inner lining 21 is installed, preventing the second threshold cladding 22 from deforming under pressure on the second threshold inner lining 21, so as to ensure the size of the threshold guide groove 101.

[0046] Such as Figure 1As shown, the first threshold assembly 10 includes a first threshold 11 and a first threshold inner lining 12. The first threshold inner lining 12 encloses to form a first threshold body with a hollow structure, and a first threshold cladding plate 13 is covered on the first threshold body. Preferably, the first threshold cladding plate 13 is a stainless steel plate. In other embodiments, the first threshold assembly 10 includes a first threshold 11, a first threshold inner lining 12, and a first threshold cladding plate 13. The first threshold cladding plate 13 and the first threshold inner lining 12 are sequentially wrapped on the first threshold 11. Here, the first threshold cladding plate 13 can be a stainless steel plate, and the first threshold 11 is a solid structure. It should be noted that the assembly connection between the first threshold cladding plate 13, the first threshold inner lining 12, and the first threshold 11 can adopt existing conventional methods, which will not be elaborated here.

[0047] As Figure 1 shown, the second threshold assembly 20 includes a second threshold cladding plate 22 and a second threshold inner lining 21. The second threshold inner lining 21 encloses to form a second threshold body with a hollow structure, and the second threshold cladding plate 22 is covered on the second threshold body. Preferably, the second threshold cladding plate 22 is a stainless steel plate. In other embodiments, the second threshold assembly 20 includes a second threshold 23, a second threshold cladding plate 22, and a second threshold inner lining 21. The second threshold inner lining 21 is wrapped on the second threshold 23, and the second threshold cladding plate 22 is then covered on the second threshold inner lining 21. Here, the second threshold cladding plate 22 can be a stainless steel plate, and the second threshold 23 is a solid structure. Further, the second threshold inner lining 21 includes a top mounting plate, side plates 211 disposed on both sides, and a bottom mounting plate 24. The bottom mounting plate 24 is disposed at the bottom of the second threshold assembly 20 in the vertical direction and, together with the top mounting plate and the side plates on both sides, bears the second threshold cladding plate 22. It should be noted that the assembly connection between the second threshold inner linings 21 of the present application can adopt existing conventional methods, such as integral bending forming, welding connection, screwing, bolting, etc., which will not be elaborated here.

[0048] As Figure 2As shown in the figure, the second threshold cladding 22 has a first hem 221, and the first hem 221 is abutted against a side plate 211 of the second threshold lining 21 on the side away from the first threshold assembly 10. The body part of the second threshold cladding 22 is closely attached to the top mounting plate of the second threshold lining 21. The outer end face of the body of the second threshold cladding 22 is provided with anti-slip lines. Among them, a notch 301 is formed on the anti-trip component 30, and a part of the first hem 221 is inserted into the notch 301, so that a gap is formed between the first hem 221 and the anti-trip component 30. That is to say, the anti-trip component 30 avoids the first hem 221 on the second threshold cladding 22 through the formed notch 301, so as to ensure that the anti-trip component 30 will not squeeze the second threshold cladding 22 when installed on the second threshold lining 21. Here, the length of the first hem 221 in the vertical direction is set to L, where L>6 mm. Specifically, the length of the first hem 221 in the vertical direction can be set to 6.5 mm, 7 mm, 8 mm, or 8.5 mm, etc. Of course, the length of the first hem 221 in the vertical direction can be adjusted according to the material thickness of the second threshold cladding 22 and the size of the factory folding knife, which will not be elaborated here. It should be noted that the thickness of the second threshold cladding 22 is 1 mm - 3 mm, specifically it can be 1.5 mm, 2 mm, etc.

[0049] As shown in the figure, the second threshold cladding 22 further has a second hem 222, and the second hem 222 is abutted against the second threshold lining 21. Moreover, the second hem 222 and the first hem 221 are arranged on both sides of the second threshold lining 21. Among them, the length of the second hem 222 in the vertical direction is greater than the length of the first hem 221 in the vertical direction. That is to say, the second threshold cladding 22 of the present application avoids contact with the second threshold cladding 22 when the anti-trip component 30 is installed on the second threshold lining 21 by shortening the length of the first hem 221 in the vertical direction.

[0050] Preferably, as Figure 3 shown in the figure, the side plate 211 extends downward relative to the bottom mounting plate 24 in the vertical direction, and the part of the side plate 211 extending out of the bottom mounting plate 24 can be abutted against the anti-trip component 30. So that the side plate 211 on the second threshold cladding 22 has enough space to assemble the anti-trip component 30, which can meet the use requirements for assembling the anti-trip component 30 on the side plate 211, and is used to make up for the installation space required for assembling the anti-trip component 30 reduced due to the need to reserve a notch position on the side plate 211.

[0051] As Figures 1 to 3As shown, the anti-trip component 30 includes an anti-trip plate 31 and a flexible support member 32. The anti-trip plate 31 is abutted against and connected to the side plate 211. Among them, a first preset gap is formed between the anti-trip plate 31 and the first folded edge 221 in the vertical direction; the flexible support member 32 is connected to the anti-trip plate 31. Among them, a second preset gap is formed between the flexible support member 32 and the first folded edge 221 in the horizontal direction. That is to say, the anti-trip plate 31 and the flexible support member 32 that make up the anti-trip component 30 will not contact the first folded edge 221 on the second sill wrapper 22, and it is ensured that the installation of the anti-trip component 30 will not squeeze the second sill wrapper 22. Here, the second preset gap is set to D, where D>0.5mm; and / or, the first preset gap is set to G, where G>2mm. Specifically, D can be taken as 0.6mm, 0.8mm and 1mm, and G can be taken as 2.1mm, 2.5mm and 3mm.

[0052] Preferably, as Figures 1 to 3 shown, the flexible support member 32 is integrally injection-molded on the anti-trip plate 31, which is convenient for the manufacture of the anti-trip component 30. Here, the material of the flexible support member 32 can be rubber, silica gel, etc. with a certain hardness. It should be noted that the material of the anti-trip plate 31 can be sheet metal to meet the use requirements for the assembly of the anti-trip plate 31 on the second sill lining 21.

[0053] As Figure 3 shown, the rail transit platform threshold 100 further includes a fastening bolt 51 and a locking nut 52. The fastening bolt 51 passes through the anti-trip plate 31 and the side plate 211 and is screwed with the locking nut 52 to fix the anti-trip plate 31 to the side plate 211. That is to say, the anti-trip plate 31 can be fixedly installed on the side plate 211 through the fastening bolt 51 and the locking nut 52. In this way, by using the threaded fit structure between the fastening bolt 51 and the locking nut 52, it is convenient for the installation of the anti-trip component 30 on the second sill lining 21. Here, the anti-trip plate 31 and the flexible support member 32 jointly form a receiving space 302, and the receiving space 302 can accommodate the fastening bolt 51, which can meet the assembly requirements when the fastening bolt 51 passes through the anti-trip plate 31 and the side plate 211.

[0054] Preferably, as Figure 3As shown, the platform threshold 100 of the rail transit also includes a lock washer 53. The lock washer 53 is sleeved on the fastening bolt 51 and abuts against the lock nut 52. Among them, one side of the lock washer 53 away from the lock nut 52 abuts against the side plate 211 or the anti-trip plate 31. Here, the lock washer 53 abuts against the side plate 211. In this way, by using the lock washer 53, it can play a role in preventing loosening when the lock nut 52 locks the fastening bolt 51, and thus the stability of the anti-trip assembly 30 after being installed on the second threshold lining 21 can be improved.

[0055] In summary, for the platform threshold 100 of the present application, since there is a gap formed between the installed anti-trip assembly 30 and the second threshold covering plate 22, the installation of the anti-trip assembly 30 will not cause extrusion to the second threshold covering plate 22. On the one hand, this can ensure the size of the threshold guide groove 101 on the platform threshold 100 of the rail transit and avoid jamming when the sliding door 40 moves on the threshold guide groove 101. On the other hand, it also reduces the precision requirements for manufacturing the second threshold covering plate 22 and facilitates the production and preparation of the second threshold covering plate 22.

[0056] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0057] Those of ordinary skill in the art of this technology should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as appropriate changes and variations are made to the above embodiments within the scope of the substantial spirit of the present invention, they all fall within the scope of protection required by the present invention.

Claims

1. A rail transit platform threshold, characterized in that: Rail transit platform threshold (100) includes: A first threshold assembly (10) is installed on one side of the platform; A second threshold assembly (20) is installed on one side of the track and is spaced apart from the first threshold assembly (10), and a threshold guide groove (101) is formed between the second threshold assembly (20) and the first threshold assembly (10), and the threshold guide groove (101) is used for sliding connection with the sliding door (40), and the second threshold assembly (20) comprises a second threshold lining (21) and a second threshold cover plate (22), and the second threshold cover plate (22) is wrapped on the second threshold lining (21) and connected to the second threshold lining (21); An anti-stepping component (30) is arranged on a side of the second threshold component (20) that is away from the first threshold component (10) in the horizontal direction and is connected to the second threshold lining (21), wherein a gap is formed between the anti-stepping component (30) and the second threshold cover plate (22).

2. The rail transit platform threshold according to claim 1, characterized in that: The second threshold cover plate (22) has a first folded edge (221), and the first folded edge (221) is attached to a side plate (211) of the second threshold lining (21) away from the first threshold assembly (10); The anti-stepping-in-the-air component (30) is provided with a notch (301), and the first folded edge (221) is partially inserted into the notch (301), so that the gap is formed between the first folded edge (221) and the anti-stepping-in-the-air component (30).

3. The rail transit platform threshold according to claim 2, characterized in that: The anti-stepping assembly (30) comprises an anti-stepping board (31) and a flexible support member (32), wherein the anti-stepping board (31) is attached to the side plate (211) and connected to the side plate (211), wherein a first preset gap is formed between the anti-stepping board (31) and the first folded edge (221) in the vertical direction; The flexible support member (32) is connected to the anti-stepping plate (31), wherein a second preset gap is formed between the flexible support member (32) and the first folded edge (221) in the horizontal direction.

4. The rail transit platform threshold according to claim 3, characterized in that: The second preset gap is set to D, where D>0.5 mm; And / or, the first preset gap is set to G, wherein G>2mm.

5. The rail transit platform threshold according to claim 3, characterized in that: The rail transit platform threshold (100) also includes a fastening bolt (51) and a locking nut (52), wherein the fastening bolt (51) passes through the anti-stepping plate (31) and the side plate (211) and is threadedly connected to the locking nut (52) for fixing the anti-stepping plate (31) to the side plate (211).

6. The rail transit platform threshold according to claim 5, characterized in that: The rail transit platform threshold (100) further comprises an anti-loosening gasket (53), wherein the anti-loosening gasket (53) is sleeved on the fastening bolt (51) and abuts against the locking nut (52); Wherein, a side surface of the anti-loosening gasket (53) away from the locking nut (52) is abutted against the side plate (211) or the anti-stepping plate (31).

7. The rail transit platform threshold according to claim 3, characterized in that: The flexible support member (32) is integrally injection-molded on the anti-stepping plate (31).

8. The rail transit platform threshold according to claim 5, characterized in that: The anti-stepping plate (31) and the flexible support member (32) together form a receiving space (302), and the receiving space (302) can receive the fastening bolt (51).

9. The rail transit platform threshold according to claim 2, characterized in that: The second threshold cover plate (22) further comprises a second folded edge (222), the second folded edge (222) being attached to the second threshold lining (21), and the second folded edge (222) and the first folded edge (221) being arranged on both sides of the second threshold lining (21); Wherein, the length of the second folded edge (222) in the vertical direction is greater than the length of the first folded edge (221) in the vertical direction.

10. The rail transit platform threshold according to claim 2, characterized in that: The second threshold lining (21) further comprises a bottom mounting plate (24), wherein the bottom mounting plate (24) is arranged at the bottom of the second threshold assembly (20) in the vertical direction and is connected to the side plate (211) and is used for carrying the second threshold cover plate (22); The side panel (211) on the second threshold lining (21) away from the first threshold assembly (10) extends downward in the vertical direction relative to the bottom mounting plate (24), and the portion of the side panel (211) extending out of the bottom mounting plate (24) is at least partially disposed against the anti-stepping assembly (30).

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