Vehicle ramp system

Abstract

The utility model provides a vehicle ramp system. The vehicle ramp system comprises a vehicle body frame, a bottom plate clamping plate, a bottom plate pad, a ramp frame molded part and a ramp slope. The body frame is provided on a door side of the vehicle. The floor cleat is directly joined to the vehicle body frame. The bottom plate pad is arranged on the periphery of the bottom plate clamping plate. One end of the ramp frame molding is mounted on the top of the vehicle body frame and the other end is mounted on the floor portion of the floor cleat. The ramp ramp is hingedly joined to one end of the ramp frame mold. Compared with the prior art, the vehicle ramp system reduces cost and improves the structure.

Description

TECHNICAL FIELD

[0001] The present utility model relates to a vehicle ramp system and a method of installing the vehicle ramp system. More particularly, the present utility model relates to a wheelchair ramp system for a low-floor bus, and a method of installing the wheelchair ramp system for the low-floor bus to facilitate the movement of the traffic disadvantaged. BACKGROUND

[0002] Due to the aging of the population and the increasing number of chronic disease patients, the number of traffic disadvantaged is increasing. In addition, the number of people disabled due to traffic accidents and industrial accidents is also increasing.

[0003] The low-floor bus for the traffic disadvantaged is provided with a wheelchair ramp system that uses an inclined panel to allow the wheelchair to enter.

[0004] Since the introduction of electric low-floor buses, reducing weight to increase the all-electric range (AER) has been a major design challenge.

[0005] However, the current manual wheelchair ramp system weighs about 39 kg each, and there is an increasing need to reduce the weight of the wheelchair ramp to improve the mobility of the traffic disadvantaged.

[0006] The foregoing background description is intended to help understand the background of the present utility model, and can include matters unknown in the prior art to those skilled in the art to which the present utility model belongs. SUMMARY

[0007] Therefore, the purpose of the present utility model considering the above points is to provide a vehicle ramp system and a method of installing the vehicle ramp system, which can reduce costs and improve structure compared to related art.

[0008] In one aspect of the present utility model, the vehicle ramp system includes: a body frame located at a door side of a vehicle; a floor clamp directly coupled to the body frame; a floor pad provided at a peripheral portion of the floor clamp; a ramp frame molding installed at one end on a top of the body frame and at the other end on a floor portion of the floor clamp; and a ramp slope hingedly coupled to one end of the ramp frame molding.

[0009] The body frame can include: a side structure provided at the door side; a base structure provided more inward of the vehicle than the side structure; and a floor structure provided between the side structure and the base structure.

[0010] The under panel bracket can include a peripheral portion including a base portion and a side portion, the base portion being joined to the base structure, and an under panel portion having a flat shape and being joined to the base structure at an inner side of the peripheral portion.

[0011] The side portion of the under panel bracket can be fastened to the base structure by means of a bracket fixing bolt, and the base portion of the under panel bracket is fastened to the base structure by means of a bracket fixing bolt.

[0012] The ramp frame molding can include a ramp portion provided at a door side, a base portion provided more inward of the vehicle than the ramp portion, and a side portion connected to respective both ends of the ramp portion and the base portion.

[0013] One end of the base portion of the ramp frame molding can be fastened to an under panel pad on the base structure by means of a trim fixing screw, and the other end can be fastened to the under panel portion of the under panel bracket by means of a trim fixing screw.

[0014] One end of the side portion of the ramp frame molding can be fastened to an under panel pad on the base structure by means of a trim fixing screw, and the other end can be fastened to the under panel portion of the under panel bracket by means of a trim fixing screw.

[0015] The side portion of the ramp frame molding can be provided with a recess into which a side portion of the ramp slope can be inserted, the vertical structure being inserted into the recess.

[0016] The vehicle ramp system can further include a trim cover molding that covers a top of the trim fixing screw fastened to one end of the base portion of the ramp frame molding and a top of the trim fixing screw fastened to one end of the side portion of the ramp frame molding.

[0017] One end of the ramp portion of the ramp frame molding can be supported on the side structure, and the other end of the ramp portion of the ramp frame molding can be supported on the under panel portion of the under panel bracket.

[0018] The ramp portion can be fastened to a support member provided between the base structure and the side structure by means of a molding fastening bolt, the base structure being joined to a bottom of the under panel portion of the under panel bracket.

[0019] The vehicle ramp system can further include a trim cover molding that covers a top of the molding fastening bolt fastened to the ramp portion.

[0020] The vehicle ramp system can further include a stainless steel (SUS) panel joined to a door opening at a side of the ramp portion.

[0021] In another aspect of the present application, a method of installing a vehicle ramp system includes: engaging a floor clamping plate to a body frame located at a door side of a vehicle; masking a peripheral portion of the floor clamping plate with a floor mat; installing one end of a ramp frame molding to the body frame and the other end of the ramp frame molding to a floor portion of the floor clamping plate; and hingedly engaging a ramp slope to one end of the ramp frame molding, wherein the floor clamping plate is directly engaged to the body frame.

[0022] The ramp frame molding can include a slope portion, a base portion, and a side portion, the slope portion being disposed at the door side, the base portion being disposed more inward of the vehicle than the slope portion, and the side portion being connected to respective both ends of the slope portion and the base portion, and installing the ramp frame molding includes fastening one end of the base portion of the ramp frame molding to the floor mat on the body frame by means of a trim fixing screw and fastening the other end of the base portion of the ramp frame molding to the floor portion of the floor clamping plate by means of the trim fixing screw.

[0023] Installing the ramp frame molding can include fastening one end of the side portion of the ramp frame molding to the floor mat on the body frame by means of a trim fixing screw and fastening the other end of the ramp frame molding to the floor portion of the floor clamping plate by means of the trim fixing screw.

[0024] Installing the ramp frame molding can include fastening the slope portion of the ramp frame molding to a support member disposed at a bottom of the floor portion of the floor clamping plate by means of a molding fastening bolt.

[0025] The method can further include, after installing the ramp frame molding, engaging a trim cover molding to the ramp frame molding to mask a top of the trim fixing screw fastened to one end of the base portion of the ramp frame molding, the trim fixing screw fastened to one end of the side portion of the ramp frame molding, and the molding fastening bolt fastened to the slope portion of the ramp frame molding.

[0026] The method can further include engaging a stainless steel (SUS) panel to the door opening at a side of the slope portion.

[0027] According to the vehicle ramp system of the present application, in contrast to the related art, using a separable structure instead of the overall structure of the related art can eliminate the necessity of enhancing the degree of strength, and reduce the cost in structure compared to the related art. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic exploded perspective view of a ramp system of the related art;

[0029] Figure 2 is a sectional view taken along line A of Figure 1 ;

[0030] Figure 3 is a sectional view taken along line B of Figure 1 ;

[0031] Figure 4 is a perspective view showing a closed position of a ramp system of the related art;

[0032] Figure 5 is a perspective view showing an open position of a ramp system of the related art;

[0033] Figure 6 is a schematic exploded perspective view of a ramp system according to the present utility model;

[0034] Figure 7 is a sectional view taken along line A of Figure 6 ;

[0035] Figure 8 is a sectional view taken along line B of Figure 6 ;

[0036] Figure 9 is a perspective view showing a closed position of a ramp system according to the present utility model;

[0037] Figure 10 is a perspective view showing an open position of a ramp system according to the present utility model;

[0038] Figure 11 shows a modification example of Figure 7 ;

[0039] Figure 12 is an additional illustration of Figure 2 ;

[0040] Figure 13 is an additional illustration of Figure 7 ;

[0041] Figure 14 shows a region of concentrated load;

[0042] Figure 15 shows a structure of the related art regarding strength enhancement of a concentrated load region of Figure 14 ;

[0043] Figure 16 shows a structure according to the present utility model regarding strength enhancement of a concentrated load region of Figure 14 ;

[0044] Figure 17 and Figure 18a problem caused by the presence of a tool hole is shown;

[0045] Figure 19 is based on Figure 2 additional illustrations;

[0046] Figure 20 is based on Figure 7 additional illustrations according to the present utility model;

[0047] Figure 21 shows a state according to a SUS panel; and

[0048] Figure 22 shows a SUS panel according to the present utility model. DETAILED DESCRIPTION

[0049] In order to fully understand the advantages of the present utility model in operation and the purposes achieved by the embodiments of the present utility model, reference needs to be made to the drawings and the content disclosed in the drawings, which show exemplary embodiments of the present utility model.

[0050] In the following description of the present utility model, detailed description of known related technologies will be omitted in cases where the subject matter of the present utility model can thus become rather unclear.

[0051] Figure 1 is a schematic exploded perspective view of a ramp system of the related art, Figure 2 is a cross-sectional view taken along line A of Figure 1 is a cross-sectional view taken along line B of Figure 3 is a perspective view showing a closed position of the ramp system of the related art, Figure 1 is a perspective view showing an open position of the ramp system of the related art. Figure 4 Figure 5 Referring to the ramp system of the related art, the vehicle body frame 210 includes a floor structure 211, a side structure 212, and a base structure 213, the floor panel 222 is joined to the vehicle body frame 210, and the floor clamp 221 is joined to the base structure 213.

[0052] The side structure 212 of the vehicle body frame 210 corresponds to a door side, and the base structure 213 of the vehicle body frame 210 corresponds to an inner side with respect to the door. In addition, the floor structure 211 connects the base structure 213 and the side structure 212 to form a frame, forming a lattice skeleton structure.

[0053] In addition, the floor pad 230 is combined or joined to the floor clamp 221 and the floor structure 211.

[0054] In addition, the floor pad 230 is combined or joined to the floor clamp 221 and the floor structure 211.

[0055] ​In addition, the ramp frame molded part 240 is mounted on the base plate panel 222 and the side structure 212, and the ramp base plate 251 is mounted on the inner part of the ramp frame molded part 240.

[0056] The ramp ramp face 252 is hinged to the door side end of the ramp frame molded part 240. For example... Figure 4 and Figure 5 As shown, the ramp slope 252 unfolds from the folded state of the ramp base plate 251 to form an inclined panel.

[0057] The inclined molded part 253 is joined to the edge of the ramp inclined surface 252.

[0058] In addition, a stainless steel (SUS) panel 260 is joined to the ramp frame mold 240 to cover the interior first end and side portions of the ramp frame mold 240.

[0059] Further reference Figure 2 and Figure 3 The side portion of the ramp frame molded component 240 is fastened to the base plate structure 211 by means of the molded component connecting bolts 272, and the clamping plate anchoring bolts 270 are fastened to the base structure 213 through the base plate clamping plate 221.

[0060] In this wheelchair ramp system of the related technology, the base plate structure 211 and the ramp base plate 251 are separate components, and therefore their strength needs to be achieved separately.

[0061] The strength of the ramp frame molded component 240 also requires a separate configuration of the ramp base plate.

[0062] In addition, it is necessary to achieve a separate configuration and strength for the base plate panel 222 to prevent the mechanic's feet from falling during the installation process, and it is necessary to achieve a configuration for the SUS panel 260 to ensure the stepped appearance of the ramp frame molded part 240 and the base plate structure 211.

[0063] The present invention aims to further improve the above configuration to achieve strength and reduce cost, wherein, Figure 6 This is a schematic exploded perspective view of the ramp system according to the present invention, where 7 is along... Figure 6 The cross-sectional view intercepted by line A. Figure 8 It is along Figure 6 The cross-sectional view intercepted by line B. Figure 9 This is a perspective view showing the closed position of the ramp system according to the present invention. Figure 10 This is a perspective view showing the open position of the ramp system according to the present invention.

[0064] In the following text, reference will be made to Figures 6 to 10 This invention describes a vehicle ramp system according to an embodiment of the present invention and a method for installing the vehicle ramp system.

[0065] In the ramp system according to the present invention, the bottom plate clamp 121 is joined to the vehicle frame 110, the vehicle frame 110 including the bottom plate structure 111, the side structure 112 and the base structure 113.

[0066] The side structure 112 of the body frame 110 corresponds to the door side, and the base structure 113 of the body frame 110 corresponds to the inner side relative to the door. Furthermore, the base plate structure 111 is configured to connect the base structure 113 and the side structure 112, or to be parallel to the side structure 112 and the base structure 113 to form a frame, thereby forming a grid-like skeleton structure. As will be described later, strength can be achieved even when the frame is reduced in size compared to frames of related technologies.

[0067] In addition, unlike the base plate clamps that are only applied to the base structure, the base plate panel of the related technology is removed, and the base plate clamps 121 that cover the entire upper part of the body frame 110 are used.

[0068] That is, the base plate 121 includes an outer portion and a base plate portion 122, wherein the outer portion includes a base portion and a side portion, and the base plate portion 122 is joined to the vehicle frame inside the outer portion.

[0069] In addition, the base plate pad 130 is attached to the outer periphery of the base plate clamp 121.

[0070] The ramp frame molded part 141 is configured such that one end is fastened to the bottom plate pad 130 and the other end is fastened to the bottom plate clamp 121.

[0071] More specifically, the ramp frame molded part 141 may include a base portion, a side portion, and a ramp portion, with the base portion corresponding to the room side and the ramp portion corresponding to the door side. For example... Figure 8 As shown, the base portion is configured such that one end is fastened to the base plate pad 130 on the base structure 113 by means of decorative fixing screws 173, while the other end is fastened to the base plate portion 122 of the base plate clamp 121 by means of decorative fixing screws 173.

[0072] like Figure 7 As shown, one end of the side portion is fastened to the base plate pad 130 on the base plate structure 111 by means of decorative fixing screws 173, while the other end of the side portion is fastened to the base plate portion of the base plate clamp 121 by means of decorative fixing screws 173.

[0073] Furthermore, such as Figure 7As shown, one end of the ramp portion is supported on the side structure 112, and the other end of the ramp portion is supported on the floor portion of the floor clamping plate 121. Further, the ramp portion is fixedly fastened to the support member 180 by means of the molding fastening bolt 171, which is disposed between the floor structure 111 and the side structure 112, which is joined to the bottom of the floor portion.

[0074] Further, as shown, the decorative cover molding 142 is mounted on the ramp frame molding 141. That is, the decorative cover molding 142 covers the upper portion of the decorative fixing screw 173 fastened to the base portion, the upper portion of the decorative fixing screw 173 fastened to the side portion, and the upper portion of the molding fastening bolt 171 fastened to the ramp portion.

[0075] Next, the ramp ramp 150 is hingedly joined to the ramp end of the ramp frame molding 141. Thus, as Figure 9 and Figure 10 shown, the ramp ramp 150 is unfolded from the folded state on the floor clamping plate 121 to form a ramp panel.

[0076] The ramp molding 151 is joined to the edge of the ramp ramp 150.

[0077] The SUS panel 160 is provided in the minimum number required, which will be discussed later.

[0078] Further reference is made to Figure 7 and Figure 8 , the side portion of the floor clamping plate 121 is fastened to the floor structure 111 by means of the clamping fixing bolt 172, and the base portion of the floor clamping plate 121 is fastened to the base structure 113 by means of the clamping fixing bolt 172.

[0079] Figure 11 A modified example of Figure 7 is shown.

[0080] The modified example is an example in which a recess is provided in the ramp frame molding 141 between the side portion and the floor portion of the floor clamping plate 121, and a vertical structure 122-2 is provided inserted into the recess. In this example, the ramp ramp 150 in the closed position is inserted into the vertical structure 122-2.

[0081] Comparing the assembly process of the ramp system according to the present application with the assembly process of the ramp system of the related art, first, in the clamping plate installation process of the related art, the clamping anchor bolt 270 extends through the floor clamping plate 221 and into and is fixed to the base structure 213 of the vehicle body frame 210. The floor structure has no other function in addition to achieving the strength of the vehicle.

[0082] In the present utility model, the clamping plate fixing bolt 172 can extend through the bottom plate clamping plate 121 and can enter and be fixed to the vehicle body frame 210, but since the bottom plate clamping plate 121 covers the entire vehicle body frame 110, the bottom plate panel can not be used.

[0083] The bottom plate structure can have both the function of realizing the strength of the vehicle and the function of enhancing the strength of the bottom plate clamping plate 121 to allow the component strength to be reduced, thereby reducing the cost.

[0084] Further, the overall strength of the bottom plate structure can be increased with the assembly of the clamping plate, thereby allowing the frame configuration to be reduced from six sections to four sections, as shown in the drawing.

[0085] Further, in installing the ramp bottom plate, the side portion is bolted in the related art, but the present utility model applies the molding fastening bolt 171 to the inclined surface portion.

[0086] Further, in the process of installing the decorative component, in the related art, the decorative component is fixed using a screw, and the decorative component is assembled using the ramp side anchoring bolt assembly hole and the stepped portion and / or stepped gap for covering the ramp frame molding 240. In contrast, in the present utility model, the decorative component is fixed using a screw, but the decorative component for covering the stepped portion is used.

[0087] The improvements of the present utility model and the structural differences between the present utility model and the related art will be described in more detail below.

[0088] Figure 12 is Figure 2 an additional view of Figure 13 is Figure 7 an additional view of.

[0089] Referring to Figure 12 In the related art, it is important to ensure that the ramp bottom plate 251 is strong to prevent noise from being generated due to interference between the ramp bottom plate 251 and the bottom plate structure 211 during movement of the motorized wheelchair bottom plate.

[0090] To solve this problem, for example, aluminum (Al) honeycomb material is applied to provide strength. Further, a double panel structure (instead of using a monolithic SQ tube) is applied to realize a bolt fastening structure for maintaining the strength of the ramp assembly.

[0091] Further, due to the increasing popularity of motorized wheelchairs, the ramp bottom plate needs to have appropriate strength of, for example, 640 kgf.

[0092] In contrast, in the present utility model, as Figure 13As shown, the bottom plate cleat 121 is directly attached to the bottom plate structure 111, so that a noise problem between the two parts can be eliminated. Accordingly, an application of a general cleat (wood) can be used instead of the existing Al honeycomb material.

[0093] Figure 14 a region where a concentrated load is applied is shown, Figure 15 a structure related to Figure 14 a strength enhancement of a concentrated load region of Figure 16 a structure related to Figure 14 a strength enhancement of a concentrated load region of

[0094] Referring to Figure 14 and Figure 15 , in the overall structure of the related art, when the wheelchair is placed on the ramp slope 252, the load is concentrated in the hinge region, but in terms of assembly structure, hardware needs to be installed in the side of the ramp frame molding 240, and high strength needs to be achieved around the entire periphery of the ramp frame molding 240.

[0095] In contrast, in the separable structure of the present utility model as shown in Figure 16 , the strength of the ramp frame side / rear can be reduced by the hardware assembly of the concentrated load region, so that a decorative part can be applied.

[0096] That is, the decorative cover molding 142 does not need to be strengthened independently, but only a part of the ramp frame molding 141 needs to be strengthened. Further, the bottom plate cleat 121 is installed separately from the vehicle body, so it does not need to be strengthened independently.

[0097] In addition, in order to strengthen the strength of the middle door opening of the low-floor bus, a structure capable of maximizing the strength of the entire periphery of the opening is required. However, the bottom of the side structure 112 must apply a cutting structure (for example, a groove) to satisfy the wheelchair ramp height regulation.

[0098] In the related art, since the ramp frame structure is not fastened, the ramp frame strength is maintained only in the ramp system, and two SQ tubes are added to enhance the insufficient strength, thereby reflecting the welding structure. This structure has no other function than providing strength to the vehicle body.

[0099] In contrast, in the present utility model, a structure is applied which has two functions of providing strength to a member for installing a wheelchair ramp and providing strength to a vehicle body.

[0100] That is, by fastening the support member 180 provided between the bottom plate structure 111 and the side structure 112 using the molding fastening bolt 171, the ramp frame structure can be fastened to provide additional strength.

[0101] Figure 17 and Figure 18 shows a problem due to the presence of a tool hole, Figure 19 is based on Figure 2 an additional illustration, Figure 20 is an additional illustration based on Figure 7 of the present utility model.

[0102] Referring to Figures 17 to 19 , in the related art, a tool hole H is provided to allow the ramp frame molding 240 to be installed therethrough. When assembling the frame, one side is often raised or lowered due to welding tolerances of the floor structure 211. In addition, there can be a stepped portion or a gap problem at the edge of the ramp frame molding 240 due to welding deformation of the floor structure 211. In order to solve these problems, a SUS panel 260 is applied to solve the above two problems.

[0103] Referring to Figure 20 , in the present utility model, the strength of the ramp frame molding 141 is reduced, and a decorative structural change is made to change the bolt fastening, which requires strength, to screw fastening, thereby allowing the product to be assembled without a tool hole.

[0104] In addition, when the floor structure 111 is deformed, it can absorb tolerances on its own to solve the stepped portion and gap problem.

[0105] Figure 21 shows a state according to the SUS panel, Figure 22 shows a SUS panel according to the present utility model.

[0106] Referring to Figure 21 , in the related art, overuse of the side / rear SUS panel 260 can increase the probability of a passenger slipping and getting injured on a rainy day.

[0107] The exposed SUS panel 260 can be covered with a non-slip band, but this can cause problems such as 1) excessively high cost, and 2) damage to the door brush due to offset when the door is opened and closed.

[0108] In contrast, in the present utility model shown in Figure 22 , the application area of the SUS panel 160 can be minimized to eliminate the non-slip band application area. The floor pad 130 in the corresponding area can be exposed to provide stability to the passenger.

[0109] Some SUS panels 160 are provided only on the opening of the middle door at the side of the inclined portion of the ramp frame molding 141, thereby preventing damage to the paint on the painted body section during passenger disembarkation, and masking the space for absorbing assembly tolerances of the separable ramp structure.

[0110] As described above, compared with the related art, using the separable structure according to the present application instead of the integral structure can eliminate the necessity of enhancing the corresponding strength degree, and reduce the cost in structure compared with the related art.

[0111] While the present application as described above has been described with reference to the drawings, the present application is not limited to the aforementioned embodiments. It will be apparent to those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the present application. Therefore, such modifications or changes should be within the scope of the claims of the present application, and the scope of the present application should be interpreted based on the appended claims.

Claims

1. A vehicle ramp system, characterized by, Comprising: a body frame located at a door side of a vehicle; a floor panel clamp directly joined to the body frame; a floor panel pad provided at a peripheral portion of the floor panel clamp; a ramp frame molding having one end mounted on a top of the body frame and the other end mounted on a floor panel portion of the floor panel clamp; and a ramp slope hingedly joined to one end of the ramp frame molding. The body frame comprises:

2. The vehicle ramp system of claim 1, wherein, a side structure provided at a door side; a base structure provided more inward of the vehicle than the side structure; and a floor structure provided between the side structure and the base structure. The floor panel clamp comprises:

3. The vehicle ramp system of claim 2, wherein, a peripheral portion including a base portion joined to the base structure and a side portion; and a floor panel portion having a flat shape and joined to the floor structure at an inner side of the peripheral portion. The side portion of the floor panel clamp is fastened to the floor structure by means of a clamp fixing bolt, 4. The vehicle ramp system of claim 3, wherein, The base portion of the floor panel clamp is fastened to the base structure by means of a clamp fixing bolt. The ramp frame molding comprises:

5. The vehicle ramp system of claim 3, wherein, a slope portion provided at a door side; a base portion provided more inward of the vehicle than the slope portion; and a side portion connected to respective both ends of the slope portion and the base portion. One end of the base portion of the ramp frame molding is fastened to the floor panel pad on the base structure by means of a trim fixing screw, and the other end is fastened to the floor panel portion of the floor panel clamp by means of a trim fixing screw.

6. The vehicle ramp system of claim 5, wherein, One end of the side portion of the ramp frame molding is fastened to the floor panel pad on the floor structure by means of a trim fixing screw, and the other end is fastened to the floor panel portion of the floor panel clamp by means of a trim fixing screw.

7. The vehicle ramp system of claim 6, wherein, The side portion of the ramp frame molding is provided with a recess into which a side portion of the ramp slope is inserted, the vertical structure being inserted into the recess.

8. The vehicle ramp system of claim 7, wherein, Further comprising a trim cover molding which covers a top of the trim fixing screw fastened to one end of the base portion of the ramp frame molding and a top of the trim fixing screw fastened to one end of the side portion of the ramp frame molding.

9. The vehicle ramp system of claim 7, wherein, One end of the slope portion of the ramp frame molding is supported on the side structure, and the other end of the slope portion of the ramp frame molding is supported on the floor panel portion of the floor panel clamp.

10. The vehicle ramp system of claim 6, wherein, The slope portion is fastened to a support member provided between the floor structure and the side structure by means of a molding fastening bolt, the floor structure being joined to a bottom of the floor panel portion of the floor panel clamp.

11. The vehicle ramp system of claim 10, wherein, Further comprising a trim cover molding which covers a top of the molding fastening bolt fastened to the slope portion.

12. The vehicle ramp system of claim 11, wherein, Further comprising a stainless steel panel joined to a door opening at a side of the slope portion.

13. The vehicle ramp system of claim 12, wherein, ​

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