Attachment system for connecting step to vehicle

Abstract

An attachment system for connecting a step portion to a vehicle includes a step portion, a mounting bracket, and a bracket. The mounting bracket is connected to the step upper surface and / or the step lower surface along at least a portion of the step inner edge, and includes a central plate, a first hook attached to and extending from a first end of the central plate, and a second hook attached to and extending from a second end of the central plate. A second hook is attached to and extends from the center plate second end. A bracket is attached to and extends from the central panel between the central panel first end and the central panel second end, and includes a first member and a second member. The second member is disposed within a slot in the second longitudinal plate of the first member. The first hook and the second hook are each independently configured to be connected with a tubular portion of the vehicle, and the bracket is configured to be connected with a threaded hole in the vehicle by passing a bracket fastener through the first plate attachment hole and into the threaded hole.

Description

[0001] Cross-references and precedence

[0002] This application claims priority to U.S. Provisional Application No. 63 / 671,198, filed July 13, 2024, the entire contents of which are incorporated herein by reference. Background Technology

[0003] Many vehicles, particularly certain light trucks and full-size SUVs, have large wheels and tires and / or long suspension systems, resulting in a high vehicle ride height. Therefore, people entering or exiting the vehicle must walk a greater distance up or down. This can be difficult for individuals, especially the elderly or people with disabilities whose mobility is limited.

[0004] Many solutions have been proposed to improve an individual's ability to enter and exit vehicles with a high driving height. The most common of these is attaching a step to one or more lower rocker panels located below one or more doors, or near them. When attached to the vehicle, the step provides a lower height surface to aid in entry and exit.

[0005] Typical vehicle steps often involve complex installation systems that require physical modifications to their vehicles—such as drilling holes in the chassis, cutting away parts of the vehicle, and / or removing factory-bolted vehicle components—to install the steps. This process is time-consuming and labor-intensive, can negatively impact vehicle safety by compromising the vehicle's structural integrity, and can result in an unsightly installed vehicle step.

[0006] Therefore, there is a need for an improved vehicle step and an attachment system for connecting the step to the vehicle, which is easy to install, requires minimal or no permanent physical modifications to existing vehicle components, and is aesthetically pleasing. Summary of the Invention

[0007] This document describes an attachment system for attaching a step portion to a vehicle. The attachment system includes a step portion, a mounting bracket, and a bracket. The step portion has an upper surface, a lower surface, and an inner edge. The mounting bracket is attached to at least a portion of the inner edge of the step portion to the upper surface and / or the lower surface.

[0008] The mounting bracket includes a central plate, a first hook, and a second hook. The central plate has a central plate first end and a central plate second end opposite the central plate first end. The first hook is attached to and extends from the central plate first end. The second hook is attached to and extends from the central plate second end. The cradle is attached to and extends from the central plate between the central plate first end and the central plate second end.

[0009] The cradle includes a first member and a second member. The first member has a first longitudinal plate attached to and forming a first angle relative to a second longitudinal plate. The first angle has a first angle measurement of about 90°. At least one first plate attachment hole passes through the first longitudinal plate. A slot extends from a second longitudinal plate end through at least a portion of the first longitudinal plate. The second member is disposed within the slot and attached to the first member. A second angle formed between a second longitudinal plate lower surface and the second member has a second angle measurement of about 90°. A third angle formed between a second longitudinal plate upper surface and the second member has a third angle measurement of about 90°.

[0010] The first hook and the second hook are each independently configured to connect to a tubular portion of a vehicle. The cradle is configured to connect with a threaded hole in the vehicle by passing a cradle fastener through the first plate attachment hole and into the threaded hole.

[0011] In some embodiments, the central plate can include a central plate assembly. In some such embodiments, the central plate assembly can include a first vertical plate, a second vertical plate, a third vertical plate, a fourth vertical plate, a fifth vertical plate, and a first horizontal plate.

[0012] When present, the first vertical plate can have a first vertical plate end, a first vertical plate proximal end, a first vertical plate upper edge, and a first vertical plate lower edge. The first vertical plate end, the first vertical plate proximal end, the first vertical plate upper edge, and the first vertical plate lower edge define a first vertical plate plane having a first vertical plate inner surface and a first vertical plate outer surface.

[0013] When present, the second vertical plate can be attached to and extend from the first vertical plate end. The second vertical plate can have a second vertical plate end, a second vertical plate proximal end, a second vertical plate upper edge, and a second vertical plate lower edge. The second vertical plate end, the second vertical plate proximal end, the second vertical plate upper edge, and the second vertical plate lower edge define a second vertical plate plane having a second vertical plate inner surface and a second vertical plate outer surface. A fourth angle formed between the first vertical plate inner surface and the second vertical plate inner surface can have a fourth measurement in a range between 50° and 70°.

[0014] When a third vertical panel is present, the third vertical panel can be attached to and extend from the first vertical panel proximal end. The third vertical panel can have a third vertical panel distal end, a third vertical panel proximal end, a third vertical panel upper edge, and a third vertical panel lower edge. The third vertical panel distal end, the third vertical panel proximal end, the third vertical panel upper edge, and the third vertical panel lower edge define a third vertical panel plane having a third vertical panel inner surface and a third vertical panel outer surface. A fifth angle formed between the first vertical panel inner surface and the third vertical panel inner surface can have a fifth measurement in a range between 50° and 70°.

[0015] When a fourth vertical panel is present, the fourth vertical panel can be attached to and extend from the second vertical panel distal end. The fourth vertical panel can have a fourth vertical panel distal end, a fourth vertical panel proximal end, a fourth vertical panel upper edge, and a fourth vertical panel lower edge. The fourth vertical panel distal end, the fourth vertical panel proximal end, the fourth vertical panel upper edge, and the fourth vertical panel lower edge define a fourth vertical panel plane having a fourth vertical panel inner surface and a fourth vertical panel outer surface. A sixth angle formed between the second vertical panel inner surface and the fourth vertical panel inner surface can have a sixth measurement in a range between 50° and 70°.

[0016] When a fifth vertical panel is present, the fifth vertical panel can have a fifth vertical panel distal end, a fifth vertical panel proximal end, a fifth vertical panel upper edge, and a fifth vertical panel lower edge. The fifth vertical panel distal end, the fifth vertical panel proximal end, the fifth vertical panel upper edge, and the fifth vertical panel lower edge define a fifth vertical panel plane having a fifth vertical panel inner surface and a fifth vertical panel outer surface. A fourth seventh angle formed between the third vertical panel inner surface and the fifth vertical panel inner surface can have a seventh measurement in a range between 50° and 70°.

[0017] When a first horizontal panel is present, the first horizontal panel can be attached to and extend inward from the first vertical panel lower edge. The first horizontal panel can have a first horizontal panel upper surface and a first horizontal panel lower surface. An eighth angle formed between the first vertical panel inner surface and the first horizontal panel upper surface can have an eighth angle measurement of about 90°.

[0018] In some embodiments, the central panel assembly can further include a first mounting tab having a first mounting tab aperture therethrough. The first mounting tab can be attached to and extend outwardly from the first vertical panel upper edge, the second vertical panel upper edge, or the fourth vertical panel upper edge. The central panel assembly can further include a second mounting tab having a second mounting tab aperture therethrough. The second mounting tab can be attached to and extend outwardly from the first vertical panel upper edge, the third vertical panel upper edge, or the fifth vertical panel upper edge.

[0019] In certain embodiments of the central panel assembly, the first hook can be attached to and extend from the fourth vertical panel upper edge. In some such embodiments, the second hook can be attached to and extend upwardly from the fifth vertical panel upper edge.

[0020] In some embodiments, the step portion can include at least a first step portion mounting aperture and a second step portion mounting aperture. The central panel assembly can be connected to the step portion lower surface by passing a first fastener through the first step portion mounting aperture and into the first mounting tab aperture and passing a second fastener through the second step portion mounting aperture and into the second mounting tab aperture.

[0021] In certain embodiments, the central panel can include a plurality of central panel apertures disposed along a central panel length from a central panel first end to a central panel second end. In some such embodiments, the second longitudinal panel can include at least one second longitudinal panel aperture at a second longitudinal panel end. In some such embodiments, the bracket can be adjustably connected to the mounting bracket by passing a third fastener through the at least one second longitudinal panel aperture and into a central panel aperture of the plurality of central panel apertures.

[0022] In some embodiments including a central panel assembly, the first horizontal panel can include a plurality of first horizontal panel apertures disposed along a first horizontal panel length. In certain such embodiments, the second longitudinal panel can include at least one second longitudinal panel aperture at a second longitudinal panel end. In such embodiments, the bracket can be adjustably connected to the mounting bracket by passing a third fastener through the at least one second longitudinal panel aperture and into a first horizontal panel aperture of the plurality of first horizontal panel apertures.

[0023] In certain embodiments, the step portion can include a tube, a platform, and a lip. When the tube is present, the tube can have a tube proximal end, a tube distal end, a first inward bend between the tube proximal end and the tube distal end, and a second inward bend of the tube between the first inward bend of the tube and the tube distal end. The first inward bend of the tube can have a first inward bend angle of the tube in a range between 50° and 70°. The second inward bend of the tube can have a second inward bend angle of the tube in a range between 50° and 70°. When the platform is present, the platform can have a platform proximal end, a platform distal end, a platform outer edge, and a platform inner edge, defining a platform plane having a platform upper surface and a platform lower surface. When the lip is present, the lip can be attached to and extend upwardly from the platform inner edge. In such embodiments, at least a portion of each of the platform proximal end, the platform distal end, and the platform outer edge can be in abutment with the tube. In certain such embodiments of the step portion, the platform outer edge can have a platform outer edge dimension that is less than a platform inner edge dimension of the platform inner edge.

[0024] In some embodiments, the step portion can further include a first step portion tab and a second step portion tab. The first step portion tab can be attached to and extend inwardly from a first location on the tube, and the first step portion tab can include a first step portion tab aperture. The second step portion tab can be attached to and extend inwardly from a second location on the tube, and the second step portion tab can include a second step portion tab aperture. In such embodiments, the platform can be connected to the tube by passing a fourth fastener through the first platform mounting aperture and into the first step portion tab aperture, and by passing a fifth fastener through the second platform mounting aperture and into the second step portion tab aperture.

[0025] In certain embodiments, the tube proximal end can be connected to the central plate first end. In some embodiments, the tube distal end can be connected to the central plate second end. In certain embodiments, the lip proximal end can be connected to the central plate first end. In some embodiments, the lip distal end can be connected to the central plate second end. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A top isometric view of an attachment system for connecting a step portion to a vehicle is shown.

[0027] Figure 2 A bottom isometric view of an attachment system for connecting a step portion to a vehicle is shown.

[0028] Figure 3 An exploded isometric view of an attachment system for connecting a step portion to a vehicle is shown.

[0029] Figure 4A top view of an attachment system for connecting a step to a vehicle is shown.

[0030] Figure 5 A bottom view of an attachment system for connecting a step to a vehicle is shown.

[0031] Figure 6 A front view of an attachment system for connecting a step to a vehicle is shown.

[0032] Figure 7 A rear view of an attachment system for connecting a step to a vehicle is shown.

[0033] Figure 8 A medial view of an attachment system for connecting a step to a vehicle is shown.

[0034] Figure 9 A lateral view of an attachment system for connecting a step to a vehicle is shown.

[0035] Figure 10 An exploded isometric view of a mounting bracket and cradle is shown.

[0036] Figure 11 A front view of a step connected to a portion of a vehicle using the attachment system is shown.

[0037] Figure 12 A rear view of a step connected to a portion of a vehicle using the attachment system is shown.

[0038] Figure 13 A central cross-sectional view of a step connected to a portion of a vehicle using the attachment system is shown. DETAILED DESCRIPTION

[0039] Described herein is an attachment system for connecting a step to a vehicle. Referring to the drawings, like numerals indicate like structures unless otherwise specified. As described herein, the following reference numerals refer to the following structures shown in the drawings.

[0040] 10 indicates an attachment system.

[0041] 50 indicates a vehicle.

[0042] 51 indicates a tubular portion (of a vehicle).

[0043] 52 indicates a threaded hole (in a vehicle).

[0044] 100 indicates a step.

[0045] 101 indicates a first step mounting hole.

[0046] 102 indicates a second step mounting hole.

[0047] 110 indicates a step portion upper surface.

[0048] 120 indicates a step portion lower surface.

[0049] 130 indicates a step portion inner edge.

[0050] 140 indicates a tube.

[0051] 141 indicates a tube proximal end portion.

[0052] 142 indicates a tube distal end portion.

[0053] 150 indicates a platform.

[0054] 151 indicates a platform proximal end portion.

[0055] 152 indicates a platform distal end portion.

[0056] 153 indicates a platform outer edge.

[0057] 154 indicates a platform inner edge.

[0058] 155 indicates a platform upper surface.

[0059] 156 indicates a platform lower surface.

[0060] 157 indicates a first platform mounting hole. 158 indicates a second platform mounting hole. 160 indicates a lip portion.

[0061] 161 indicates a lip portion proximal end portion.

[0062] 162 indicates a lip portion distal end portion.

[0063] 170 indicates a first step portion tab. 171 indicates a first step portion tab hole. 180 indicates a second step portion tab. 181 indicates a second step portion tab hole. 200 indicates a mounting bracket.

[0064] 201 indicates a first mounting tab.

[0065] 202 indicates a first mounting tab hole. 203 indicates a second mounting tab.

[0066] 204 indicates a second mounting tab hole. 205 indicates a first fastener.

[0067] 206 indicates a second fastener.

[0068] 207 indicates a central plate hole.

[0069] 208 indicates a third fastener.

[0070] 210 indicates a central plate.

[0071] 211 indicates a first end of the central plate. 215 indicates the central plate assembly.

[0072] 220 indicates a first hook.

[0073] 230 indicates a second hook.

[0074] 240 indicates a first vertical plate.

[0075] 241 indicates a distal end of the first vertical plate. 242 indicates a proximal end of the first vertical plate. 243 indicates an upper edge of the first vertical plate. 244 indicates a lower edge of the first vertical plate. 245 indicates an inner surface of the first vertical plate. 246 indicates an outer surface of the first vertical plate. 250 indicates a second vertical plate.

[0076] 251 indicates a distal end of the second vertical plate. 252 indicates a proximal end of the second vertical plate. 253 indicates an upper edge of the second vertical plate. 254 indicates a lower edge of the second vertical plate. 255 indicates an inner surface of the second vertical plate. 256 indicates an outer surface of the second vertical plate. 260 indicates a third vertical plate.

[0077] 261 indicates a distal end of the third vertical plate. 262 indicates a proximal end of the third vertical plate. 263 indicates an upper edge of the third vertical plate. 264 indicates a lower edge of the third vertical plate. 265 indicates an inner surface of the third vertical plate. 266 indicates an outer surface of the third vertical plate. 270 indicates a fourth vertical plate.

[0078] 271 indicates a distal end of the fourth vertical plate. 272 indicates a proximal end of the fourth vertical plate. 273 indicates an upper edge of the fourth vertical plate. 274 indicates a lower edge of the fourth vertical plate. 275 indicates an inner surface of the fourth vertical plate. 276 indicates an outer surface of the fourth vertical plate. 280 indicates a fifth vertical plate.

[0079] 281 indicates a distal end of the fifth vertical plate. 282 indicates a proximal end of the fifth vertical plate. 283 indicates an upper edge of the fifth vertical plate. 284 indicates a lower edge of the fifth vertical plate. 285 indicates an inner surface of the fifth vertical plate. 286 indicates an outer surface of the fifth vertical plate. 290 indicates a first horizontal plate.

[0080] 291 indicates an upper surface of the first horizontal plate. 292 indicates a lower surface of the first horizontal plate. 293 indicates a hole of the first horizontal plate.

[0081] 300 indicates a cradle.

[0082] 310 indicates a first member.

[0083] 311 indicates a first longitudinal plate.

[0084] 312 indicates a second longitudinal plate.

[0085] 313 indicates a first plate attachment hole.

[0086] 314 Indicator slot.

[0087] 315 indicates the end of the second longitudinal plate.

[0088] 316 indicates the lower surface of the second longitudinal plate.

[0089] 317 indicates the upper surface of the second longitudinal plate.

[0090] 318 indicates the second longitudinal plate hole.

[0091] 320 indicates the second component.

[0092] 330 indicates bracket fastener.

[0093] Figure 1 and Figure 2 A method for connecting the step portion (100) to a vehicle (such as...) is shown. Figure 11 An exemplary embodiment of the attachment system (10) shown in (50) is provided, wherein Figure 1 A top-view isometric view is shown, while Figure 2 An isometric view viewed from below is shown. (As shown) Figure 1 and Figure 2 As shown, the attachment system includes a step portion, a mounting bracket (200) and a bracket (300), the step portion having an upper surface (110) and a lower surface (120).

[0094] Figure 3 A method for connecting the step portion (100) to a vehicle (such as...) is shown. Figure 11 An exploded isometric view of an exemplary embodiment of the attachment system (10) shown (50), including additional details of the step portion, mounting bracket (200), and bracket (300). Figure 3As shown in FIG. 1, the mounting bracket includes a central plate (210) having a central plate first end (211) and a central plate second end (212) opposite the central plate first end. Attached to and extending from the central plate first end is a first hook (220). Similarly, attached to and extending from the central plate second end is a second hook (230). The attachment between the central plate first end and the first hook, the attachment between the central plate second end and the second hook can each independently take a variety of forms. Non-limiting examples of such connections include permanent connections, such as the central plate and first and / or second hooks being fabricated from a single piece of integral material that can be bent to shape, or can include one or both of the hooks being welded to the central plate. Other non-limiting examples of such connections include non-permanent connections, such as fasteners connecting one or both of the hooks to the central plate, including but not limited to bolts (with or without nuts), screws, rivets, clamps.

[0095] A first mounting tab (201) can be attached to and extend outwardly from the central plate (210) at or near the central plate first end (211). When present, the first mounting tab provides a surface to which the step (100) can be connected to the mounting bracket (200). The connection between the step and the first mounting tab can take a variety of forms. In some embodiments, the first mounting tab can include a first mounting tab hole (202) that passes through the first mounting tab such that a first fastener (205), such as a bolt (with or without a nut), screw, rivet, etc., can pass through a first step mounting hole (101) in the step and into the first mounting tab hole (and can pass through the first mounting tab hole and into the first step mounting hole (101) in the step). Alternatively, the step can be connected to the first mounting tab by welding a surface of the step to the first mounting tab.

[0096] Similarly, a second mounting protrusion (203) may be attached to or near the second end (212) of the central plate to the central plate (210) and extend outward from the central plate (210). When the second mounting protrusion is present, it provides a surface for the step portion (100) to be connected to the mounting bracket (200). The connection between the step portion and the second mounting protrusion can take various forms. In some embodiments, the second mounting protrusion may include a second mounting protrusion hole (204) that passes through the second mounting protrusion, such that a second fastener (206)—such as a bolt (with or without a nut), screw, rivet, etc.—can pass through and enter the second mounting protrusion hole (102) in the step portion. Alternatively, the step portion can be connected to the second mounting protrusion by welding the surface of the step portion to the second mounting protrusion.

[0097] The central plate may also include multiple central plate holes (such as...) Figure 5 As shown in (207), central plate holes are provided along the length of the central plate, spanning from the first end to the second end. These central plate holes serve as attachment points for connecting the mounting bracket (200) to the bracket (300). The mounting bracket can be connected to the bracket by passing a third fastener (208)—such as a bolt (with or without a nut), screw, rivet, etc.—through the second longitudinal plate hole (318) in the second longitudinal plate end portion (315) of the bracket and into one of the central plate holes. In some embodiments, such as Figure 3 In the illustrated embodiment, the end portion of the second longitudinal plate may include one or more second longitudinal plate holes, wherein each fastener is configured to pass through each of the second longitudinal plate holes and enter a separate central plate hole among a plurality of central plate holes. The plurality of central plate holes preferably includes a greater number of central plate holes than the number of second longitudinal plate holes, such that the position of the bracket can be adjusted along the length of the central plate. Alternatively, the mounting bracket can be connected to the bracket by welding the end portion of the second longitudinal plate to the central plate (210).

[0098] Figure 3 Additional details of an exemplary embodiment of the stepped portion (100) are also shown. Figure 3As shown in the figures, the step portion can include a tube (140), a platform (150), and a lip (160). When present, the tube will have a tube proximal end (141) and a tube distal end (142). There can be a tube first inward bend between the tube proximal end and the tube distal end. Preferably, when present, the tube first inward bend will have a tube first inward bend angle in the range between 50° and 70°. Similarly, there can be a tube second inward bend between the tube first inward bend and the tube distal end. Preferably, when present, the tube second inward bend will have a tube second inward bend angle in the range between 50° and 70°. The tube inward bends in combination with each other provide a tube having a generally "C" shaped profile, as shown in the figures. Figure 3

[0099] When present, the platform (150) includes a platform proximal end (151), a platform distal end (152), a platform outer edge (153), and a platform inner edge (154), defining a platform plane having a platform upper surface (155) and a platform lower surface (156). As shown in the figures, the platform outer edge has a platform outer edge dimension, which can be less than a platform inner edge dimension of the platform inner edge, thereby giving the platform a generally trapezoidal shape.

[0100] In the embodiment of the step portion (100) shown in Figure 3 In the embodiment of the step portion (100) shown in

[0101] Once assembled as shown in the figures, a portion of each of the platform proximal end (151), the platform distal end (152), and the platform outer edge (153) can abut the tube. In some embodiments, one or more of the platform edges that abut the tube can be connected to the tube, such as by welding or by fasteners. ​

[0102] In certain embodiments, the step (100) can also include a first step tab (170) that is attached to and extends inwardly from a first location on the pipe (140). Preferably, when present, the first step tab will be welded to the pipe. The first step tab can include a first step tab hole (171) that passes through the first step tab. The platform (150) can then be connected to the pipe by passing a fourth fastener, such as a bolt (with or without a nut), screw, rivet, etc., through the first platform mounting hole (157) and into the first step tab hole (which can pass through the first step tab hole and into the first platform mounting hole (157)).

[0103] Similarly, some embodiments of the step (100) can also include a second step tab (180) that is attached to and extends inwardly from a second location on the pipe (140). Preferably, when present, the second step tab will be welded to the pipe. The second step tab can include a second step tab hole (181) that passes through the second step tab. The platform (150) can then be connected to the pipe by passing a fifth fastener, such as a bolt (with or without a nut), screw, rivet, etc., through the second platform mounting hole (158) and into the second step tab hole (which can pass through the second step tab hole and into the second platform mounting hole (158)).

[0104] Figure 4 and Figure 5 respectively show top and bottom views of exemplary embodiments of an attachment system (10) for connecting a step (100) to a vehicle (such as a truck (50)) as shown in Figure 11 Figure 4 and Figure 5 include additional details of the step (100), including a step upper surface (110) and a step lower surface (120). In some embodiments, such as the embodiments shown in Figure 4 and Figure 5 the step can include a surface pattern that is provided for enhanced traction on the step and / or decorative ornamentation. In Figure 4 and Figure 5 ​In the illustrated embodiment, the surface pattern portion includes a plurality of through-holes, each of the plurality of through-holes having a generally hexagonal shape. However, other embodiments of the surface pattern portion can exist. Non-limiting examples of such surface pattern portions include: a plurality of through-holes; a plurality of blind holes, preferably a plurality of blind holes extending into the upper surface of the step portion; a plurality of protrusions, preferably protrusions extending upwardly from the upper surface of the step portion; and combinations thereof. These surface pattern portions can have many different sizes, shapes, and profiles.

[0105] Figure 6 and Figure 7 respectively show front and rear views of an exemplary embodiment of an attachment system (10) for connecting a step portion (100) to a vehicle (e.g., a truck) as shown (50). Additional details of the step portion (100), the mounting bracket (200), and the cradle (300) are included in Figure 11 Figure 6 and Figure 7

[0106] Figure 8 shows a medial side view of an exemplary embodiment of an attachment system (10) for connecting a step portion (100) to a vehicle (e.g., a truck) as shown (50), the medial side view including additional features of the mounting bracket (200) and the cradle (300). In the illustrated embodiment, the central plate (210) of the mounting bracket can be considered a central plate assembly (215). The central plate assembly includes a first vertical plate (240) having a first vertical plate inner surface (245), a second vertical plate (250) having a second vertical plate inner surface (255), a third vertical plate (260) having a third vertical plate inner surface (265), a fourth vertical plate (270) having a fourth vertical plate inner surface (275), and a fifth vertical plate (280) having a fifth vertical plate inner surface (285). The central plate assembly can be manufactured in many different ways. In some embodiments, the individual plates making up the central plate assembly can be permanently connected to one another, such as by welding, or by manufacturing the plates from a single integral piece of material that is bent into shape. In other embodiments, the individual plates making up the central plate assembly can be removably connected to one another by one or more fasteners, such as bolts (with or without nuts), screws, rivets, clamps, and the like. Figure 11 Figure 8

[0107] Figure 8 ​​​​​As shown, the bracket (300) can include a first member (310) and a second member (320). In this configuration, the first member can include a first longitudinal plate (311) that is attached to a second longitudinal plate (312) and forms a first angle with respect to the second longitudinal plate (312). The first angle will have a first angle measurement equal to or about 90°. Preferably, the first longitudinal plate will include at least one first plate attachment hole (313) that serves as a mounting point for a bracket fastener (e.g., (330) shown in Figure 13 FIG. 4) to be passed through the first plate attachment hole and into a threaded hole (e.g., (52) shown in Figure 13 FIG. 1) in the vehicle (e.g., (50) shown in Figure 13 FIG. 1) to connect the bracket to the vehicle.

[0108] The second member (320) can be disposed within a slot (e.g., (314) shown in Figure 10 FIG. 3) that extends through at least a portion of the first longitudinal plate (311) from a second longitudinal plate end portion (e.g., (315) shown in Figure 10 FIG. 3). The second member can then be attached to the first member by welding along at least a portion of the length of the interface between the first member and the second member. In this way, a second angle will be formed between the second longitudinal plate lower surface (316) and the second member. The second angle will have a second angle measurement equal to or about 90°. Similarly, a third angle will be formed between the second longitudinal plate upper surface (e.g., (317) shown in Figure 10 FIG. 3) and the second member. The third angle will have a third angle measurement equal to or about 90°.

[0109] Figure 9 An outside perspective view of an exemplary embodiment of an attachment system (10) for connecting a step (100) to a vehicle (e.g., (50) shown in Figure 11 FIG. 1) is shown. Figure 9 Included in the embodiment shown in

[0110] Figure 10 An exploded isometric view of an exemplary embodiment of a mounting bracket (200) and a bracket (300) of an attachment system (10) for connecting a step (100) to a vehicle (e.g., (50) shown in Figure 11 FIG. 1) is shown. In the embodiment shown in Figure 10 FIG. 3, the central plate (210) of the mounting bracket is in the form of a central plate assembly (215) having a structure similar to that shown in Figure 8 FIG. 2.

[0111] In the embodiment shown in Figure 11Details of the central panel assembly (215) can be seen in the image. Figure 11 As shown, the first vertical plate (240) includes a first vertical plate end portion (241), a first vertical plate proximal portion (242) opposite to the first vertical plate end portion, a first vertical plate upper edge (243), and a first vertical plate lower edge (244) opposite to the first vertical plate upper edge. The first vertical plate end portion, the first vertical plate proximal portion, the first vertical plate upper edge, and the first vertical plate lower edge define a first vertical plate plane, which has a first vertical plate inner surface (245) and a first vertical plate outer surface (246).

[0112] A second vertical plate (250) is attached to and extends from the end portion (241) of the first vertical plate. The second vertical plate includes a second vertical plate end portion (251), a second vertical plate proximal portion (252) opposite to the second vertical plate end portion, an upper upper edge (253) of the second vertical plate, and a lower edge (254) opposite to the upper upper edge of the second vertical plate. The second vertical plate end portion, the second vertical plate proximal portion, the upper upper edge of the second vertical plate, and the lower edge of the second vertical plate define a second vertical plate plane having a second vertical plate inner surface (255) and a second vertical plate outer surface (256). Figure 10 As shown, a fourth angle is formed between the inner surfaces of the first vertical plate and the second vertical plate. The fourth angle can have a measured value in the range of 50° to 70°.

[0113] A third vertical plate (260) is attached to and extends from the proximal end (242) of the first vertical plate. The third vertical plate includes a third vertical plate end portion (261), a third vertical plate proximal end portion (262) opposite to the third vertical plate end portion, a third vertical plate upper edge (263), and a third vertical plate lower edge (264) opposite to the third vertical plate upper edge. The third vertical plate end portion, the third vertical plate proximal end portion, the third vertical plate upper edge, and the third vertical plate lower edge define a third vertical plate plane having a third vertical plate inner surface (265) and a third vertical plate outer surface (266). Figure 10 As shown, a fifth angle is formed between the inner surfaces of the first and third vertical plates. The fifth angle can have a measured value in the range of 50° to 70°.

[0114] Attached to the second vertical panel distal end portion (251) and extending therefrom is a fourth vertical panel (270). The fourth vertical panel includes a fourth vertical panel distal end portion (271), a fourth vertical panel proximal end portion (272) opposite the fourth vertical panel distal end portion, a fourth vertical panel upper edge (273), and a fourth vertical panel lower edge (274) opposite the fourth vertical panel upper edge. The fourth vertical panel distal end portion, the fourth vertical panel proximal end portion, the fourth vertical panel upper edge, and the fourth vertical panel lower edge define a fourth vertical panel plane having a fourth vertical panel inner surface (275) and a fourth vertical panel outer surface (276). As shown in Figure 10 As shown in

[0115] Attached to the third vertical panel distal end portion (261) and extending therefrom is a fifth vertical panel (280). The fifth vertical panel includes a fifth vertical panel distal end portion (281), a fifth vertical panel proximal end portion (282) opposite the fifth vertical panel distal end portion, a fifth vertical panel upper edge (283), and a fifth vertical panel lower edge (284) opposite the fifth vertical panel upper edge. The fifth vertical panel distal end portion, the fifth vertical panel proximal end portion, the fifth vertical panel upper edge, and the fifth vertical panel lower edge define a fifth vertical panel plane having a fifth vertical panel inner surface (285) and a fifth vertical panel outer surface (286). As shown in Figure 10 As shown in

[0116] Figure 10 Also shown is a central panel assembly (215) including a first horizontal panel (290). The first horizontal panel can be attached to the first vertical panel lower edge (244) and extend inwardly therefrom. The first horizontal panel includes a first horizontal panel upper surface (291) and a first horizontal panel lower surface (292). As shown in Figure 10 As shown in

[0117] In some embodiments, such as Figure 10In the illustrated embodiment, the first horizontal plate (290) may include a plurality of first horizontal plate holes (293) disposed along the length of the first horizontal plate. The first horizontal plate holes can be used to adjustably connect the bracket (300) to the mounting bracket (200) by passing one or more third fasteners (208) through one or more second longitudinal plate holes (318) and into at least one of the plurality of first horizontal plate holes, as referenced herein. Figure 3 As described.

[0118] exist Figure 10 In the embodiment shown, the first mounting protrusion (e.g. Figure 3 The (201) shown may be attached to at least one of the first vertical plate upper edge (243), the second vertical plate upper edge (253), or the fourth vertical plate upper edge (273) and extend outward from at least one of the first vertical plate upper edge (243), the second vertical plate upper edge (253), or the fourth vertical plate upper edge (273). When the first mounting protrusion is present, the first mounting protrusion provides a step portion (such as...) Figure 3 The (100) shown can be connected to the surface of the mounting bracket (200). The connection between the stepped portion and the first mounting protrusion can take various forms. In some embodiments, the first mounting protrusion may include a first mounting protrusion hole (e.g., through which the first mounting protrusion passes) Figure 3 As shown in (202), the first fastener (such as...) Figure 3 The (205) shown – such as bolts (with or without nuts), screws, rivets, etc. – can pass through the first step mounting hole in the step (e.g. Figure 3 As shown in (101), and enters the first mounting protrusion hole (which can pass through the first mounting protrusion hole and enter the first step mounting hole in the step portion). Alternatively, the step portion can be attached to the first mounting protrusion by welding the surface of the step portion to the first mounting protrusion.

[0119] Similarly, in Figure 10 In the embodiment shown, the second mounting protrusion (e.g. Figure 3 The (203) shown may be attached to at least one of the first vertical plate upper edge (243), the third vertical plate upper edge (263), or the fifth vertical plate upper edge (283) and extend outward from at least one of the first vertical plate upper edge (243), the third vertical plate upper edge (263), or the fifth vertical plate upper edge (283). When a second mounting protrusion is present, the second mounting protrusion provides a step portion (such as...) Figure 3The (100) shown can be connected to the surface of the mounting bracket (200). The connection between the stepped portion and the second mounting protrusion can take various forms. In some embodiments, the second mounting protrusion may include a second mounting protrusion hole (e.g., through which the second mounting protrusion passes) Figure 3 As shown in (204), the second fastener (as shown) Figure 3 The (206) shown – such as bolts (with or without nuts), screws, rivets, etc. – can pass through the second step mounting hole in the step (e.g. Figure 3 As shown in (102), and enters the second mounting protrusion hole (which can pass through the second mounting protrusion hole and enter the second step mounting hole in the step portion). Alternatively, the step portion can be connected to the second mounting protrusion by welding the surface of the step portion to the second mounting protrusion.

[0120] like Figure 10 As further shown, the first hook (220) may be attached to and extend from the upper edge (273) of the fourth vertical plate. Similarly, the second hook (230) may be attached to and extend from the upper edge (283) of the fifth vertical plate. In some embodiments, the first hook and / or the second hook may be permanently attached to their respective vertical plates, for example by welding one or more hooks to one or more vertical plates or by manufacturing one or more hooks to one or more vertical plates from a single, integral piece of material bent into shape. In other embodiments, the first hook and / or the second hook may be removably attached to their respective vertical plates by one or more fasteners, such as bolts (with or without nuts), screws, rivets, clamps, etc.

[0121] Figures 11 to 13 The attachment of a step (100) to a vehicle (50) is illustrated using any type of attachment system (10) disclosed herein. In the embodiment shown in the figure, the vehicle is provided by Stellantis NV of Hofdorp, Netherlands. or As is well known, such vehicles include tubular sections (51), sometimes referred to as rock rails, located below and outside the vehicle's side rocker arm panels. Because these tubular sections are located below and outside the vehicle's side rocker arm panels, they are also located below and outside the vehicle's driver and passenger doors above the rocker arm panels. In some cases, the attachment system may include more than one spacer that can be added between the mounting surface of the tubular section of the vehicle and the vehicle chassis to allow the tubular section to extend away from the vehicle, thereby allowing proper clearance and alignment for attaching the step portion to the vehicle.

[0122] As Figure 11 shown in FIG. 1 1 1, the step portion (100) is configured to be attached to the vehicle (50) at least in part by connecting the first hook (220) to a portion of the tubular portion (51 ). Similarly, Figure 12 shown in FIG. 1 1 1, the step portion (100) is configured to be attached to the vehicle (50) at least in part by connecting the first hook (220) to a portion of the tubular portion (51 ). Similarly, Figure 13 shown in FIG. 1 1 1, the step portion (100) is configured to be attached to the vehicle (50) at least in part by connecting the first hook (220) to a portion of the tubular portion (51 ). Similarly, Figure 10 shown in FIG. 1 1 1, the step portion (100) is configured to be attached to the vehicle (50) at least in part by connecting the first hook (220) to a portion of the tubular portion (51 ). Similarly, Figure 3 and Figure 10 shown in FIG. 1 1 1, the step portion (100) is configured to be attached to the vehicle (50) at least in part by connecting the first hook (220) to a portion of the tubular portion (51 ). Similarly,

[0123] Preferably, the step portion (100) will be attached to the vehicle (50) such that the step portion is generally aligned with at least one door of the vehicle. In doing so, the step portion can be used to assist vehicle occupants in entering and exiting the vehicle.

[0124] The various components of the attachment system and step portion disclosed herein, including components of the step portion, mounting bracket, and bracket, can be manufactured using any number of different materials and any number of different manufacturing techniques. Preferably, the various components will be manufactured from a metallic material such as steel, stainless steel, aluminum, etc. However, embodiments can exist in which one or more components are manufactured from a rigid plastic material such as acrylonitrile butadiene styrene (ABS), polyethylene (PE), nylon, etc. Manufacturing techniques can include cutting, bending, grinding, welding, casting, forging, injection molding, etc., using common equipment for such operations.

[0125] The embodiments of the attachment system for connecting a step to a vehicle disclosed herein represent an improvement over the prior art step and attachment system. Specifically, the disclosed system can be quickly and easily installed to a vehicle (and if desired, uninstalled) by placing the hook over a tubular portion of the vehicle rocker panel at or near the vehicle door opening and bolting the bracket to existing threaded holes in the bottom of the vehicle chassis using a small number of fasteners (only the fasteners connecting the bracket to the vehicle) required during installation. In doing so, little or no permanent physical modification to the existing vehicle structure is required, resulting in minimal impact to the safety and structural integrity of the vehicle, and the installed step is aesthetically pleasing. The resulting step is structurally reasonable for the individual entering and exiting the vehicle, as the central plate assembly provides structural support in addition to providing the mounting features that connect the step to the vehicle. Furthermore, the plurality of first horizontal plate holes provide adjustability, allowing the bracket to be moved along the length of the central plate to align with existing threaded hole features in the vehicle, rather than requiring holes to be drilled and tapped in the vehicle.

[0126] While the attachment system for connecting a step to a vehicle has been described as having one or more exemplary designs, additional modifications can be made to the present disclosure within the spirit and scope of the disclosure. Accordingly, it is intended that the present application cover all such changes, uses, or modifications of the attachment system for connecting a step to a vehicle, which follow the principles of the attachment system.

Claims

1. An attachment system (10) for connecting a step (100) to a vehicle (50), the attachment system comprising: the step, the step having a step upper surface (110), a step lower surface (120), and a step inner edge (130); a mounting bracket (200) connected to the step upper surface and / or the step lower surface along at least a portion of the step inner edge, the mounting bracket comprising: a central plate (210) having a central plate first end (211) and a central plate second end (212) opposite the central plate first end; a first hook (220) attached to and extending from the central plate first end; and a second hook (230) attached to and extending from the central plate second end; a cradle (300) attached to and extending from the central plate between the central plate first end and the central plate second end, the cradle comprising: a first member (310) having a first longitudinal plate (311) attached to and forming a first angle with respect to a second longitudinal plate (312), the first angle having a first angle measurement of about 90°, at least one first plate attachment hole (313) through the first longitudinal plate, and a slot (314) extending through at least a portion of the first longitudinal plate from a second longitudinal plate end (315); and a second member (320) disposed within the slot and attached to the first member, wherein a second angle formed between a second longitudinal plate lower surface (316) and the second member has a second angle measurement of about 90°, and a third angle formed between a second longitudinal plate upper surface (317) and the second member has a third angle measurement of about 90°; and wherein the first hook and the second hook are each independently configured to connect with a tubular portion (51) of the vehicle, and the cradle is configured to connect with a threaded hole (52) in the vehicle by passing a cradle fastener (330) through the first plate attachment hole and into the threaded hole.

2. The attachment system of claim 1, wherein, the central plate comprises a central plate assembly (215) comprising: a first vertical plate (240) having a first vertical plate end (241), a first vertical plate proximal end (242), a first vertical plate upper edge (243), and a first vertical plate lower edge (244), defining a first vertical plate plane having a first vertical plate inner surface (245) and a first vertical plate outer surface (246); a second vertical panel (250) attached to and extending from the first vertical panel distal end, the second vertical panel having a second vertical panel distal end (251), a second vertical panel proximal end (252), a second vertical panel upper edge (253), and a second vertical panel lower edge (254), thereby defining a second vertical panel plane having a second vertical panel inner surface (255) and a second vertical panel outer surface (256), wherein a fourth angle formed between the first vertical panel inner surface and the second vertical panel inner surface has a fourth angular measurement within a range between 50° and 70°; a third vertical panel (260) attached to and extending from the first vertical panel proximal end, the third vertical panel having a third vertical panel distal end (261), a third vertical panel proximal end (262), a third vertical panel upper edge (263), and a third vertical panel lower edge (264), thereby defining a third vertical panel plane having a third vertical panel inner surface (265) and a third vertical panel outer surface (266), wherein a fifth angle formed between the first vertical panel inner surface and the third vertical panel inner surface has a fifth angular measurement within a range between 50° and 70°; a fourth vertical panel (270) attached to and extending from the second vertical panel distal end, the fourth vertical panel having a fourth vertical panel distal end (271), a fourth vertical panel proximal end (272), a fourth vertical panel upper edge (273), and a fourth vertical panel lower edge (274), thereby defining a fourth vertical panel plane having a fourth vertical panel inner surface (275) and a fourth vertical panel outer surface (276), wherein a sixth angle formed between the second vertical panel outer surface and the fourth vertical panel outer surface has a sixth angular measurement within a range between 50° and 70°; a fifth vertical panel (280) attached to and extending from the third vertical panel distal end, the fifth vertical panel having a fifth vertical panel distal end (281), a fifth vertical panel proximal end (282), a fifth vertical panel upper edge (283), and a fifth vertical panel lower edge (284), thereby defining a fifth vertical panel plane having a fifth vertical panel inner surface (285) and a fifth vertical panel outer surface (286), wherein a seventh angle formed between the third vertical panel outer surface and the fifth vertical panel outer inner surface has a seventh angular measurement within a range between 50° and 70°; and a first horizontal plate (290) attached to and extending inwardly from the first vertical plate lower edge, the first horizontal plate having a first horizontal plate upper surface (291) and a first horizontal plate lower surface (292), wherein an eighth angle formed between the first vertical plate inner surface and the first horizontal plate upper surface has an eighth angle measurement of approximately 90°; and wherein a first mounting tab (201) is attached to and extends outwardly from the first vertical plate upper edge, the second vertical plate upper edge, or the fourth vertical plate upper edge, the first mounting tab (201) having a first mounting tab aperture (202) therethrough; a second mounting tab (203) is attached to and extends outwardly from the first vertical plate upper edge, the third vertical plate upper edge, or the fifth vertical plate upper edge, the second mounting tab (203) having a second mounting tab aperture (204) therethrough; the first hook is attached to and extends from the fourth vertical plate upper edge; and the second hook is attached to and extends from the fifth vertical plate upper edge.

3. The attachment system of claim 1, wherein, The central plate includes a plurality of central plate apertures (207) disposed along a central plate length from the central plate first end to the central plate second end; the second longitudinal plate includes at least one second longitudinal plate aperture (318) at the second longitudinal plate end, and the bracket is adjustably connectable to the mounting bracket by passing a third fastener (208) through the at least one second longitudinal plate aperture and into a central plate aperture of the plurality of central plate apertures.

4. The attachment system of claim 1, wherein, The step further includes: a tube (140) having a tube proximal end (141), a tube distal end (142), a tube first inward bend between the tube proximal end and the tube distal end, the tube first inward bend having a tube first inward bend angle in a range between 50° and 70°, and a tube second inward bend between the tube first inward bend and the tube distal end, the tube second inward bend having a tube second inward bend angle in a range between 50° and 70°; a platform (150) having a platform proximal end (151), a platform distal end (152), a platform outer edge (153), and a platform inner edge (154), defining a platform plane having a platform upper surface (155) and a platform lower surface (156); and a tube (140) having a tube proximal end (141), a tube distal end (142), a tube first inward bend between the tube proximal end and the tube distal end, the tube first inward bend having a tube first inward bend angle in a range between 50° and 70°, and a tube second inward bend between the tube first inward bend and the tube distal end, the tube second inward bend having a tube second inward bend angle in a range between 50° and 70°; a platform (150) having a platform proximal end (151), a platform distal end (152), a platform outer edge (153), and a platform inner edge (154), defining a platform plane having a platform upper surface (155) and a platform lower surface (156); and a lip (160) attached to the platform inner edge and extending upwardly from the platform inner edge; and At least a portion of each of the platform proximal end, the platform distal end, and the platform outer edge abuts the tube.

5. The attachment system of claim 2, wherein, The step portion includes at least a first step portion mounting hole (101) and at least a second step portion mounting hole (102), the central plate assembly is connected to the step portion lower surface by passing a first fastener (205) through the first step portion mounting hole and into the first mounting tab hole and passing a second fastener (206) through the second step portion mounting hole and into the second mounting tab hole.

6. The attachment system of claim 2, wherein, The central plate includes a plurality of central plate holes (207) disposed along a central plate length from the central plate first end to the central plate second end, the second longitudinal plate includes at least one second longitudinal plate hole (318) at the second longitudinal plate distal end, and the bracket is adjustably connectable to the mounting bracket by passing a third fastener (208) through the at least one second longitudinal plate hole and into a central plate hole of the plurality of central plate holes.

7. The attachment system of claim 2, wherein, The first horizontal plate includes a plurality of first horizontal plate holes (293) disposed along a length of the first horizontal plate, the second longitudinal plate includes at least one second longitudinal plate hole (318) at the second longitudinal plate distal end, and the bracket is adjustably connectable to the mounting bracket by passing a third fastener (208) through the at least one second longitudinal plate hole and into a first horizontal plate hole of the plurality of first horizontal plate holes.

8. The attachment system of claim 2, wherein, The step portion further includes: a tube (140) having a tube proximal end (141), a tube distal end (142), a tube first inward bend between the tube proximal end and the tube distal end, and a tube second inward bend between the tube first inward bend and the tube distal end, the tube first inward bend having a tube first inward bend angle in a range between 50° and 70°, the tube second inward bend having a tube second inward bend angle in a range between 50° and 70°; a platform (150) having a platform proximal end (151), a platform distal end (152), a platform outer edge (153), and a platform inner edge (154) defining a platform plane having a platform upper surface (155) and a platform lower surface (156); and a lip (160) attached to the platform inner edge and extending upwardly from the platform inner edge; and At least a portion of each of the platform proximal end, the platform distal end, and the platform outer edge abuts the tube.

9. The attachment system of claim 3, wherein, The central plate includes a plurality of central plate holes (207) disposed along a central plate length portion spanning from the central plate first end portion to the central plate second end portion, the second longitudinal plate includes at least one second longitudinal plate hole (318) at the second longitudinal plate end portion, and the bracket is adjustably connectable to the mounting bracket by passing a third fastener (208) through the at least one second longitudinal plate hole and into a central plate hole of the plurality of central plate holes.

10. The attachment system of claim 3, wherein, The first horizontal plate includes a plurality of first horizontal plate holes (293) disposed along a length portion of the first horizontal plate, the second longitudinal plate includes at least one second longitudinal plate hole (318) at the second longitudinal plate end portion, and the bracket is adjustably connectable to the mounting bracket by passing a third fastener (208) through the at least one second longitudinal plate hole and into a first horizontal plate hole of the plurality of first horizontal plate holes.

11. The attachment system of claim 3, wherein, The step portion further includes: a tube (140) having a tube proximal end portion (141), a tube distal end portion (142), a tube first inwardly curved portion between the tube proximal end portion and the tube distal end portion, and a tube second inwardly curved portion between the tube first inwardly curved portion and the tube distal end portion, the tube first inwardly curved portion having a tube first inwardly curved angle in a range between 50° and 70°, the tube second inwardly curved portion having a tube second inwardly curved angle in a range between 50° and 70°; a platform (150) having a platform proximal end portion (151), a platform distal end portion (152), a platform outer edge (153), and a platform inner edge (154), thereby defining a platform plane having a platform upper surface (155) and a platform lower surface (156); and a lip (160) attached to and extending upwardly from the platform inner edge; and at least a portion of each of the platform proximal end portion, the platform distal end portion, and the platform outer edge abuts the tube.

12. The attachment system of claim 8, wherein, The platform outer edge has a platform outer edge dimension that is less than a platform inner edge dimension of the platform inner edge.

13. The attachment system of claim 8, wherein, The step portion further includes: a first step portion tab (170) attached to and extending inwardly from a first location on the tube, the first step portion tab including a first step portion tab hole (171); and a second step portion tab (180) attached to and extending inwardly from a second location on the tube, the second step portion tab including a second step portion tab hole (181); and a third step portion tab (190) attached to and extending inwardly from a third location on the tube, the third step portion tab including a third step portion tab hole (191). wherein the platform is connected to the tube by passing a fourth fastener through a first platform mounting hole (157) and into the first step tab hole and passing a fifth fastener through a second platform mounting hole (158) and into the second step tab hole.

14. The attachment system of claim 8, wherein, The tube proximal end is connected to the central plate first end.

15. The attachment system of claim 8, wherein, The tube distal end is connected to the central plate second end.

16. The attachment system of claim 8, wherein, The lip proximal end (161) is connected to the central plate first end.

17. The attachment system of claim 8, wherein, The lip distal end (162) is connected to the central plate second end.

18. The attachment system of claim 8, wherein, The platform outer edge has a platform outer edge dimension that is less than a platform inner edge dimension of the platform inner edge.

19. The attachment system of claim 11, wherein, The platform outer edge has a platform outer edge dimension that is less than a platform inner edge dimension of the platform inner edge.

20. The attachment system of claim 12, wherein, The step further comprises: a first step tab (170) attached to and extending inward from a first location on the tube, the first step tab comprising a first step tab hole (171); and a second step tab (180) attached to and extending inward from a second location on the tube, the second step tab comprising a second step tab hole (181); and wherein the platform is connected to the tube by passing a fourth fastener through a first platform mounting hole (157) and into the first step tab hole and passing a fifth fastener through a second platform mounting hole (158) and into the second step tab hole.

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