Slope device and slope system

Abstract

To cope with various level differences.SOLUTION: A slope system of the present invention comprises a first slope device 100 and a device of a different type from the first slope device 100. The first slope device 100 is adjustable in a height direction and can be adjusted to an arbitrary height exceeding the upper limit of the height adjustment range of the first slope device 100 by combining different types of devices.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a temporary slope device and a slope system. [Background technology]

[0002] Temporary slope devices have been used to overcome steps. The portable slope disclosed in Patent Document 1 includes a pair of slope plates, a hinge member that connects the slope plates so that they can be folded freely, and a plurality of stopper members that are spaced apart from each other and are arranged along the side end faces of the slope plates on the other side of each slope plate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-342016 Summary of the Invention [Problem to be solved by the invention]

[0004] When such a temporary slope device is used at a work site, for example, it needs to be adapted to various steps that are installed at the work site. The present invention has been made in consideration of the above-mentioned problems, and has as its object to be able to deal with various steps. [Means for solving the problem]

[0005] The slope system of the present invention is characterized by comprising a first slope device and a device of a different type from the first slope device. [Effects of the Invention]

[0006] According to the present invention, it is possible to accommodate various steps. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view showing an example of the configuration of a slope system according to a first embodiment. FIG. [Figure 2] FIG. 2 is an exploded perspective view showing the configuration of a first slope device. [Figure 3] FIG. 2 is a side view showing the configuration of a first slope device. [Figure 4] FIG. 4 is a side view showing a configuration of a part of the first slope device. [Figure 5A] FIG. 2 is a rear view showing the configuration of the first slope device. [Figure 5B] FIG. 2 is a rear view showing the configuration of the first slope device. [Figure 6A] FIG. 3 is a cross-sectional view showing a part of a first slope device. [Figure 6B] FIG. 3 is a cross-sectional view showing a part of a first slope device. [Figure 7] FIG. 10 is an exploded perspective view showing the configuration of a second slope device. [Figure 8A] FIG. 10 is a side view showing the configuration of a second slope device. [Figure 8B] FIG. 10 is a side view showing the configuration of a second slope device. [Figure 9A] FIG. 10 is a rear view showing the configuration of the second slope device. [Figure 9B] FIG. 10 is a rear view showing the configuration of the second slope device. [Figure 10] FIG. 2 is an exploded perspective view showing the configuration of the base device. [Figure 11A] FIG. 2 is a side view showing the configuration of the base device. [Figure 11B] FIG. 2 is a side view showing the configuration of the base device. [Figure 12A] FIG. 2 is a rear view showing the configuration of the base device. [Figure 12B] FIG. 2 is a rear view showing the configuration of the base device. [Figure 13] FIG. 4 is a cross-sectional view showing the configuration of a guard portion. [Figure 14] FIG. 10 is a diagram showing an example of the configuration of a slope system corresponding to each step. [Figure 15]FIG. 10 is a perspective view showing an example of the configuration of a slope system according to a second embodiment. [Figure 16] FIG. 10 is a perspective view showing an example of the configuration of a slope system according to a third embodiment. [Figure 17] FIG. 10 is a perspective view showing an example of the configuration of a slope system according to a fourth embodiment. [Figure 18] FIG. 11 is a perspective view showing an example of the configuration of the upper and lower connecting members of the fifth embodiment. [Figure 19] FIG. 10 is a rear view showing an example of the configuration of a base device connected to upper and lower connecting members. [Figure 20] FIG. 13 is a perspective view showing an example of the configuration of a connecting member according to a sixth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] The slope system according to this embodiment will be described below with reference to the drawings. The slope system of this embodiment includes a first slope device and a device of a different type from the first slope device. By combining the first slope device with a different type of device, it is possible to accommodate steps of various heights. As different types of devices, the following description will focus on a second slope device and a pedestal device. For convenience, in each drawing, the front side facing the step is represented as Fr, the rear side as Rr, the right side as R, and the left side as L.

[0009] (First embodiment) FIG. 1 is a perspective view showing an example of the configuration of a slope system 10 according to the first embodiment. The slope system 10 of this embodiment includes two first slope devices 100 (100a, 100b), one second slope device 200, and three pedestal devices 300 (300a-300c) for climbing over high steps at a low gradient. The slope system 10 also includes six detachable guard units 400 (400a-400f). The two first slope devices 100a, 100b have the same configuration and are the same type. The three pedestal devices 300a-300c have the same configuration and are the same type. The six guard units 400a-400f have the same configuration and are the same type.

[0010] In the slope system 10, the first slope device 100a, the first slope device 100b, and the second slope device 200 are arranged in this order from the rear to the front. The first slope device 100b is grounded to the base devices 300a and 300b so as to bridge between them. The second slope device 200 is grounded to the base devices 300b and 300c so as to bridge between them. The guard units 400 are detachably attached to the left and right ends of each slope device.

[0011] Each device constituting the slope system 10 will be described in detail below. <Configuration of the first slope device 100> The first slope device 100 is adjustable in the height direction, and the first slope device 100 is adjustable to any height within a height adjustment range.

[0012] FIG. 2 is an exploded perspective view showing the configuration of the first slope device 100. As shown in FIG. The first slope device 100 includes a slope portion 110 and a support portion 150 . The slope section 110 is disposed at an angle and functions to allow people and objects to pass over steps at a gentle gradient. The slope section 110 is positioned continuously from the ground surface. In a plan view, the slope section 110 has, for example, a substantially rectangular shape with a longer front-to-rear length than a left-to-right length. The slope section 210 has a front-to-rear length (La shown in FIG. 3, which will be described later) of approximately 960 mm (e.g., in a range of 800 mm to 1200 mm) and a left-to-right (width) length (Wa shown in FIGS. 5A and 5B, which will be described later) of approximately 600 mm (e.g., 400 mm to 800 mm). The height adjustment range of the slope section 110 is a first range. Specifically, the height from the ground surface to the front end of the surface of the slope section 110 (Ha shown in FIG. 3) can be continuously adjusted to any height between approximately 100 mm and approximately 150 mm, with the adjustment width being approximately 50 mm (e.g., 40 mm to 80 mm). Here, the surface (upper surface) is the surface that people or objects step on (contact surface) when passing through the slope system.

[0013] In this embodiment, the gradient of the slope section 110 is expressed in Ha / La, and is set to be 1 / 6 or less within the height adjustment range. The gradient is also set to be 1 / 12 or more within the height adjustment range. The reason for setting the gradient to 1 / 6 or less is to take into consideration the Parking Lot Law Enforcement Ordinance. A gradient greater than 1 / 6 would be too steep, so it is preferable to set the gradient to 1 / 6 or less. The reason for setting the gradient to 1 / 12 or more is to take into consideration the Law Concerning Promotion of Smooth Mobility for the Elderly, Disabled, etc. If the gradient is less than 1 / 12, the first slope device 100 would become too large, so it is preferable to set the gradient to 1 / 12 or more.

[0014] The slope section 110 has a main slope section 111, a first slope section 121, and a second slope section 131. The slope section 110 is arranged in the following order from the rear side to the front side: first slope section 121, second slope section 131, and main slope section 111. The surfaces of the main slope section 111, first slope section 121, and second slope section 131 are all the same color.

[0015] The main slope section 111 has a plurality of (e.g., six) slope members 112 and a plurality of (e.g., five to seven) joists 117. The slope members 112 are, for example, substantially flat plates whose left-to-right length is longer than their front-to-back length. The slope members 112 are, for example, made of an aluminum alloy and formed by extrusion molding. The slope members 112 are also arranged in parallel front-to-back with no gaps between them. The main slope section 111 has a surface integrally provided with ridges extending left-to-right as anti-slip protrusions. The ridges of the main slope section 111 have a substantially triangular cross section. The anti-slip protrusions are not limited to ridges, but may be formed by blasting the entire surface or by fixing a checker plate. The front slope member 112b of the main slope portion 111 has a hole 116 for exposing the upper end of the adjustment member 161.

[0016] Furthermore, the rear slope member 112a and the front slope member 112b of the main slope portion 111 have cross-sectional shapes different from those of the other central slope member 112. Fig. 3 is a side view showing the configuration of the first slope device 100, with angle members (described later) shown in a see-through state. Fig. 4 is a side view showing a portion of the configuration of the first slope device 100. As shown in FIG. 4, the rear slope member 112a has a substantially circular rotating portion 114 at its rear end. The rotating portion 114 fits into a rotated portion 133 (described later) of the second slope portion 131, and the two portions rotate relative to each other. That is, the second slope portion 131 is rotatable relative to the main slope portion 111 around an axis along the left-right direction of the rotating portion 114. Note that the rotating portion 114 and the rotated portion 133 come into contact with each other and their rotation is restricted once they exceed a certain rotation range. The rear slope member 112a also has a holding portion 115 extending from the rear end toward the front. There is a gap above the holding portion 115, and the holding portion 115 holds, from below, a rail member 117 inserted into the gap from the front.

[0017] 3, the front slope member 112b has a holding portion 113 extending from the front end toward the rear side (see also FIGS. 6A and 6B described below). There is a gap above the holding portion 113, and the holding portion 113 holds from below the joist member 117 inserted into the gap from the rear side. The beam members 117 are disposed on the underside of the slope members 112 to improve the strength of the main slope section 111. The beam members 117 are hollow members with a generally rectangular cross section along the front-to-rear direction. The beam members 117 are made of, for example, an aluminum alloy and formed by extrusion. As shown in Figures 5A and 5B (described later), multiple beam members 117 are disposed in parallel on the left and right sides with gaps between them. The beam members 117 are fixed to the underside of the slope members 112 using bolts or rivets. Therefore, each slope member 112 and each beam member 117 are configured to intersect with each other.

[0018] Furthermore, L-shaped angle members 141R and 141L are fixed to both left and right ends of the main slope portion 111. The angle members 141R and 141L function as protective members that protect the ends of the main slope portion 111. The angle members 141R and 141L have approximately the same length as the length of the main slope portion 111 in the front-to-rear direction. The angle members 141R and 141L are made of, for example, an aluminum alloy and formed by extrusion molding. The angle member 141R covers the side surface at the right end of the main slope portion 111, and the angle member 141L covers the side surface at the left end of the main slope portion 111. The angle members 141R and 141L are fixed to the main slope portion 111 and the joist member 117 using bolts, rivets, etc.

[0019] Here, the front and side surfaces of the angle members 141R, 141L, i.e., the exposed surfaces, are colored a color different from the surface of the main slope portion 111, for example, red. The angle members 141R, 141L function as visual recognition parts for distinguishing the left and right ends of the slope portion 110. Coloring methods include coloring by surface treatment such as anodizing, coloring by applying paint, coloring by attaching stickers, and coloring by mixing coloring agents. Note that the angle members 141R, 141L are not limited to being L-shaped, and may simply be plate members that cover the side surfaces of the right and left ends of the main slope portion 111, or may simply be plate members that cover the surfaces of the right and left ends of the main slope portion 111.

[0020] Furthermore, the angle member 141R has a connecting portion 142. On the other hand, the angle member 141L has a connected portion 143 (see the diagram indicated by the dashed line in Figure 2). When multiple first slope devices 100 are installed side by side on the left and right, the connecting portion 142 and the connected portion 143 connect adjacent first slope devices 100 so that they do not separate. A plurality of (for example, two) connecting portions 142 are arranged at a distance from each other at the front and rear of the angle member 141R. The connecting portions 142 are grooves that open downward in the side plates of the angle member 141R. A plurality of (for example, two) connected portions 143 are arranged at a distance from each other at the front and rear of the angle member 141L. The connected portions 143 are rivets or the like that are fixed to the side plates of the angle member 141L. The connecting portions 142 and the connected portions 143 are arranged at positions that are approximately symmetrical left and right with respect to the center line C of the first slope device 100. For example, the groove that is the connecting portion 142 of the first slope device 100 located on the left side fits from above into the rivet head that is the connected portion 143 of the first slope device 100 located on the right side, thereby connecting the two first slope devices 100.

[0021] The first slope portion 121 comes into contact with a ground surface such as a floor, and forms an inclined surface that continues from the ground surface. The first slope portion 121 is located behind the second slope portion 131. The first slope portion 121 is, for example, in the shape of a generally flat plate whose left-to-right length is longer than its front-to-back length, and is composed of one piece. The first slope portion 121 is made of, for example, an aluminum alloy, and is formed by extrusion molding. The first slope portion 121 has a surface with ridges that run integrally in the left-to-right direction as anti-slip protrusions.

[0022] The first slope portion 121 has a rotated portion 122 at its front end. The rotated portion 122 fits into a rotating portion 132 (described later) of the second slope portion 131, and they rotate relative to each other. That is, the first slope portion 121 is rotatable relative to the second slope portion 131 around an axis along the left-right direction of the rotating portion 132. Note that the rotating portion 132 and the rotated portion 122 come into contact with each other when they exceed a certain rotation range, restricting their rotation. The first slope portion 121 has a seat portion 123 at its rear end that comes into contact with the ground surface. The seat portion 123 is formed across the first slope portion 121 in the left-right direction. Additionally, an anti-slip member 124 made of rubber or the like is coupled to the underside of the first slope portion 121. A plurality of (for example, three) anti-slip members 124 are fixed to the underside of the first slope portion 121 at intervals in the left-right direction using screws, rivets, or the like. In addition, the first slope portion 121 has a plurality of holes 128 for fixing to the ground surface at positions close to the rear end and close to the left and right ends (see Figure 2).

[0023] The second slope portion 131 forms an inclined surface continuing from the first slope portion 121. The second slope portion 131 is located in front of the first slope portion 121 and behind the main slope portion 111. The second slope portion 131 is, for example, in the shape of a generally flat plate whose left-to-right length is longer than its front-to-back length, and is configured as a single piece. The second slope portion 131 is made of, for example, an aluminum alloy and formed by extrusion molding. The second slope portion 131 has a ridge formed integrally on its surface in the left-to-right direction as an anti-slip protrusion. The second slope portion 131 has a rotating portion 132 at its rear end and a rotated portion 133 at its front end. The rotated portion 133 fits into the rotating portion 114 of the rear slope member 112a. Additionally, an anti-slip member 134 made of rubber or the like is coupled to the lower surface of the second slope portion 131. A plurality of (for example, three) anti-slip members 134 are fixed to the lower surface of the second slope portion 131 at intervals in the left-right direction using screws, rivets, or the like.

[0024] Here, anti-slip member 124 and anti-slip member 134 each have a main body portion 125 and a protrusion portion 126. Main body portion 125 is a portion that is fixed to the lower surface of first slope portion 121 and second slope portion 131, respectively. Protrusion portion 126 is a portion that protrudes from the lower surface of main body portion 125 toward the ground surface. A plurality of protrusion portions 126 are formed at intervals in the front-rear direction. Furthermore, each protrusion portion 126 has approximately the same shape along the left-right direction.

[0025] The enlarged view indicated by the dashed-dotted line in FIG. 4 shows an enlarged portion of the protrusion 126. Here, it is assumed that the anti-slip members 124 and 134 are in contact with a horizontal floor surface (two-dot chain line). The protrusion 126 has a front side surface 127a and a rear side surface 127b, and the center line Ce between the front side surface 127a and the rear side surface 127b is inclined toward the front side. The front side surface 127a and the rear side surface 127b of the protrusion 126 are not parallel to each other, but are formed so that they approach each other downward. Here, the angle between the front side surface 127a of the protrusion 126 and the floor surface on the front side is angle α1, and the angle between the rear side surface 127b of the protrusion 126 and the floor surface on the rear side is angle α2. The protrusion 126 is formed so that angle α1 is smaller than angle α2. Due to the above-described shapes, the anti-slip members 124 and 134 are less likely to move rearward than forward.

[0026] Since the rotating portion 132 and the rotated portion 122, and the rotating portion 114 and the rotated portion 133 are fitted together, they cannot separate in the front-to-rear direction, but they can slide left and right relative to each other. Therefore, L-shaped angle members 136R and 136L are fixed to both left and right ends of the second slope portion 131 as stopper members. The angle members 136R and 136L prevent the first slope portion 121 and the main slope portion 111 from sliding left and right.

[0027] Here, the front and side surfaces of the angle members 136R and 136L, i.e., the exposed surfaces, are colored a color, for example, red, different from the surface of the second slope portion 131. The angle members 136R and 136L function as visual recognition parts for distinguishing the left and right ends of the slope portion 110. Coloring methods include coloring by surface treatment such as anodizing, coloring by applying paint, coloring by attaching stickers, and coloring by mixing coloring agents. Note that the angle members 136R and 136L are not limited to being L-shaped, and may simply be plate members that cover the side surfaces of the right and left ends of the second slope portion 131, or may simply be plate members that cover the surfaces of the right and left ends of the second slope portion 131.

[0028] Next, the support portion 150 will be described. The support portion 150 is located below the slope portion 110, on the front end side of the slope portion 110. The support portion 150 comes into contact with the ground surface. The support portion 150 supports the slope portion 110 so that the height direction of the slope portion 110 can be adjusted. The support portion 150 also supports the slope portion 110 so that the gradient (inclination angle) of the slope portion 110 can be adjusted. The support section 150 of this embodiment has support units 151a and 151b. The support units 151a and 151b are disposed below the front slope member 112b, on both the left and right sides of the front slope member 112b. Specifically, the support units 151a and 151b are disposed so as to overlap with holes 116 formed on both sides of the front slope member 112b in a plan view. The support units 151a and 151b have the same basic configuration. Therefore, the basic configurations of the two units will be described here focusing on the support unit 151a, and differences in configuration will be described later.

[0029] As shown in FIG. 2, the support unit 151a includes a screw member 152 and an adjustment member 161. The threaded member 152 is fixedly attached to the slope portion 110 and is threadedly engaged with the adjustment member 161. Specifically, the threaded member 152 has a main body portion 153, an attachment portion 155, and a nut 157 as a female thread portion. Here, the main body portion 153 and the attachment portion 155 are an integral member formed by bending through press molding, and are made of, for example, iron. The main body portion 153 and the attachment portion 155 are generally hat-shaped when viewed from the front-to-rear direction.

[0030] The main body 153 is generally U-shaped and has a pair of side walls and a connecting portion that connects the side walls together, and has a hole 154 at the approximate center of the connecting portion through which the adjustment member 161 is inserted. The space surrounded by the pair of side walls of the main body 153 and the connecting portion forms a hole 158 that opens at least to the front side, and functions as a connected portion that is connected to a connecting portion 230 of the second slope device 200, which will be described later. The mounting portions 155 extend in directions away from the left and right ends of the main body portion 153. The mounting portions 155 are fixed to the front slope member 112b using screws, rivets, or the like, passed through a plurality of mounting holes while in contact with the underside of the front slope member 112b.

[0031] Nut 157 is fixed to the underside of main body 153 by, for example, welding, while communicating with hole 154 located approximately in the center of main body 153. Here, when support unit 151a and support unit 151b are attached to slope portion 210, the axis of nut 157 does not align with the vertical direction when viewed from the front-to-rear direction, but is intentionally tilted at a predetermined angle. In other words, the extension direction of attachment portion 155 of main body 153, to which nut 157 is fixed, is designed so that it is intentionally not parallel to the horizontal plane when viewed from the front-to-rear direction.

[0032] The adjustment member 161 is screwed into the screw member 152 and is grounded on a ground surface such as a floor. The adjustment member 161 has a bolt 162 as a male thread portion and a receiving seat 165. One side of the bolt 162 is exposed, and the other side is located within the receiving seat 165.

[0033] The catch 165 is made of, for example, resin or rubber, and has a generally circular disk shape that is larger than the outer diameter of the bolt 162. The catch 165 has a plurality of operating portions 167 around the entire circumference of its outer periphery that allow the operator to rotate the adjustment member 161 around the axis (see FIGS. 5A, 5B, 6A, and 6B). The operating portions 167 are concave from the outer periphery toward the center of the catch 165, but are not limited to this shape. The bottom surface of the catch 165 is not flat, but rather a curved surface that is convex downward. The portion of the bottom surface of the catch 165 that passes through the axis of the bolt 162 is located at the lowest. The catch 165 has a plurality of protrusions on its bottom, and the imaginary surface formed by connecting the tips of the plurality of protrusions is the curved surface.

[0034] To assemble and configure support unit 151a, bolt 162 of adjustment member 161 is screwed into nut 157 of threaded member 152 from below and inserted into hole 154 of main body 153. Finally, screw 173 (see FIGS. 2, 6A, and 6B) is used to insert into the hole in one end surface of bolt 162, and washer 172 is attached as a retaining part to the tip of one side of adjustment member 161, thereby assembling support unit 151a. The support unit 151b has the same configuration as the support unit 151a, but the direction in which the axis of the nut 157 inclines when viewed from the front-to-back direction is symmetrical with respect to the center line C of the slope portion 110 in the left-to-right direction. The first slope device 100 can be assembled by attaching the assembled support unit 151a and support unit 151b to the main slope section 111, respectively.

[0035] Next, a case where the height of the main slope portion 111 of the first slope device 100 is adjusted will be described with reference to FIGS. 5A, 5B, 6A, and 6B. 5A and 5B are rear views showing the configuration of the first slope device 100. FIG. 5A shows a state in which the protrusion amount of the adjustment member 161 is at its shortest, i.e., a state in which the front end of the surface of the main slope portion 111 is at its lowest (the lower limit of the adjustment range). When the front end of the surface of the main slope portion 111 is at its lowest, the main slope portion 111 is in its lowest state. On the other hand, FIG. 5B shows a state in which the protrusion amount of the adjustment member 161 is at its longest, i.e., a state in which the front end of the surface of the main slope portion 111 is at its highest (the upper limit of the adjustment range). When the front end of the surface of the main slope portion 111 is at its highest, the main slope portion 111 is in its highest state. When an operator holds the first slope device 100 slightly up, he or she grasps the operating portion 167 of the adjustment member 161 and rotates the adjustment member 161 around the axis, which changes the position at which the adjustment member 161 is threaded with respect to the nut 157, thereby adjusting the protrusion amount of the adjustment member 161. By adjusting the amount of protrusion of the adjustment member 161, the main slope portion 111 rotates around the rotation portion 114, and the height of the main slope portion 111 changes.

[0036] 5A and 5B, adjustment member 161 of support unit 151a and adjustment member 161 of support unit 151b are inclined relative to the ground surface when they are in contact with the ground. That is, axis S of bolt 162 of support unit 151a and axis S of bolt 162 of support unit 151b are inclined relative to the ground surface. Specifically, in rear view, the bolts 162 of the support units 151a and 151b are inclined so that their upper sides are close to each other and their lower sides are far from each other. That is, the bolts 162 of the support units 151a and 151b are substantially V-shaped. Here, the undersides of the receiving seats 165 of the support units 151a and 151b are curved, so that a portion of the receiving seats 165 that is biased toward the center line C of the first slope device 100 from the axis S comes into contact with the floor. When vibrations or the like are applied to the adjustment member 161 due to a person or object passing over the slope section 110, the direction of the reaction force that the adjustment member 161 receives from the floor becomes substantially parallel to the axis S.

[0037] Therefore, adjustment member 161 of support unit 151a and adjustment member 161 of support unit 151b each tend to move primarily in the tilted direction of the left-right direction. However, adjustment member 161 of first support unit 151a and adjustment member 161 of second support unit 151b are tilted symmetrically with each other and tend to move in opposite directions, so they are unable to move, and left-right misalignment is suppressed for the entire first slope device 100. In either the state shown in FIG. 5A or FIG. 5B, the angle of inclination of the bolts 162 of the support units 151a and 151b is always constant or approximately constant.

[0038] 6A and 6B are cross-sectional views showing a part of the first slope device 100. Here, the support unit 151a will be described, but the same applies to the support unit 151b. Fig. 6A shows the state in which the amount of protrusion of adjustment member 161 is at its shortest, which corresponds to the state in Fig. 5A. In the state in Fig. 6A, the upper end of adjustment member 161 is positioned in hole 116 of front slope member 112b. In addition, because the lower end of nut 157 and seat 165 of adjustment member 161 are in contact, the amount of protrusion of adjustment member 161 cannot be made shorter than in this state. Fig. 6B shows a state in which adjustment member 161 protrudes the longest, which corresponds to the state in Fig. 5B. In the state in Fig. 6B, the upper end of adjustment member 161 is positioned in hole 154 of main body 153 of threaded member 152. Furthermore, because the upper end of nut 157 and washer 172 at the upper end of adjustment member 161 are in contact, the amount of protrusion of adjustment member 161 cannot be made longer than in this state.

[0039] 6A, adjustment member 161 is inclined relative to the ground surface when in contact with the ground. That is, axis S of bolt 162 of adjustment member 161 is inclined relative to the ground surface. Specifically, in a side view, bolt 162 of adjustment member 161 is inclined with the upper side facing forward and the lower side facing backward. From this state, by adjusting the amount of protrusion of adjustment member 161 in the advancing direction, the gradient of slope portion 110 changes, and the angle at which axis S of bolt 162 of adjustment member 161 is inclined also changes. Specifically, the angle at which axis S of bolt 162 is inclined changes so as to approach the vertical direction with respect to the ground surface.

[0040] In this embodiment, even in the state shown in Figure 6B, adjustment member 161 is not vertical, but strictly speaking, is in contact with the ground at a slight inclination relative to the ground surface. That is, axis S of bolt 162 of adjustment member 161 is inclined relative to the ground surface. Specifically, in a side view, bolt 162 of adjustment member 161 is inclined with the upper side facing forward and the lower side facing rearward. That is, from the lower limit to the upper limit of the adjustment range of the adjustment member 261, the axis S of the bolt 262 is inclined with the upper side facing forward and the lower side facing backward.

[0041] Here, because the underside of the receiving seat 165 of the adjustment member 161 is a curved surface, a portion of the adjustment member 161 that is biased forward from the axis S comes into contact with the ground surface. When a person or object passes over the slope section 110 and vibrations or the like are applied to the adjustment member 161, the direction of the reaction force that the adjustment member 161 receives from the ground surface becomes approximately parallel to the axis S. Therefore, when vibrations or the like are applied to the adjustment member 161 due to a person or object passing above, the adjustment member 161 tends to move forward in the front-to-back direction, thereby preventing a gap from being formed between a step or the like located on the front side and the front slope member 112b.

[0042] <Configuration of the second slope device 200> The second slope device 200 is disposed adjacent to the first slope device 100. The second slope device 200 is adjustable in height beyond the upper limit of the height adjustment range of the first slope device 100. In addition, the second slope device 200 is adjustable to any height within the height adjustment range.

[0043] FIG. 7 is an exploded perspective view showing the configuration of the second slope device 200. As shown in FIG. The second slope device 200 includes a slope portion 210 , a first support portion 250 , and a second support portion 280 . The slope section 210 is disposed at an angle and has the function of allowing people and objects to pass over steps at a gentle gradient. The slope section 210 is not continuous with the ground surface but is positioned at a distance in the height direction from the ground surface. In a plan view, the slope section 210 has, for example, a substantially rectangular shape with a longer front-to-back length than a left-to-right length. The slope section 210 has a length in the front-to-back direction (Lb shown in Figures 8A and 8B described later) of approximately 750 mm (for example, in the range of 550 mm to 950 mm) and a length in the left-to-right direction (width direction) (Wb shown in Figures 9A and 9B described later) of approximately 600 mm (for example, 400 mm to 800 mm).

[0044] The slope section 210 has a second height adjustment range. Specifically, the height from the ground surface to the front end of the surface of the slope section 210 (Hb1 shown in FIGS. 8A and 8B) can be continuously adjusted to any height between approximately 150 mm and approximately 250 mm, with the adjustment range being approximately 100 mm (e.g., 80 mm to 120 mm). The second slope device 200 has a height adjustment range that is different from and larger than the height adjustment range of the first slope device 100. By adjusting the height Hb1 from the ground surface to the front end of the surface of the slope section 210, the height from the ground surface to the rear end of the surface of the slope section 210 (Hb2 shown in FIGS. 8A and 8B) changes between approximately 140 mm and approximately 150 mm. When the gradient of the slope portion 210 of this embodiment is expressed as (Hb1-Hb2) / Lb, the gradient is set to be 1 / 6 or less within the height adjustment range.

[0045] 8A and 8B are side views showing the configuration of the second slope device 200. FIG. The slope section 210 has a plurality of (for example, six) slope members 212 and a plurality of (for example, five to seven) beam members 217. The slope members 212 have the same configuration as the slope members 112 of the first slope device 100. Furthermore, the rear slope member 212a and the front slope member 212b of the slope section 210 have cross-sectional shapes that are different from those of the other central slope members 112. The rear slope member 212a and the front slope member 212b have the same configuration as the first slope member 112b. That is, the rear slope member 212a has a holding portion 215 that extends from the rear end toward the front side, and the holding portion 215 holds the beam member 217 from below. The front slope member 212b has a holding portion 213 that extends from the front end toward the rear side, and the holding portion 213 holds the beam member 217 from below. The rear slope member 212a and the front slope member 212b have approximately the same cross-sectional shape.

[0046] The beam members 217 are hollow members with a generally rectangular cross section along the front-to-rear direction. The beam members 217 have the same configuration as the beam members 117 of the first slope device 100. The multiple beam members 217 are arranged in parallel on the left and right at intervals. The beam members 217 are fixed to the underside of the slope members 212 using bolts or rivets. Therefore, the slope members 212 and the beam members 217 are configured to intersect with each other.

[0047] The slope section 210 also has a connecting portion 230 for connecting to another slope device. The connecting portion 230 is inserted into a hole 158, which serves as a connected portion of the screw member 152 of the first slope device 100, thereby maintaining the first slope device 100 and the second slope device 200 adjacent to each other and connected. The connecting portion 230 of this embodiment has connecting members 231R and 231L. The connecting members 231R and 231L are located on both the left and right sides of the rear end of the slope section 210. Specifically, the connecting members 231R and 231L are fixed to the rear end surface of the rear slope member 212b. The connecting members 231R and 231L are made of, for example, an aluminum alloy and are formed by extrusion molding. The connecting members 231R, 231L have protrusions 232 that protrude toward the front. As shown in FIGS. 8A and 8B, the protrusions 232 are located below the upper end of the end face of the rear slope member 212a. The protrusions 232 have a substantially constant width in the left-right direction and a shape in which their thickness in the up-down direction decreases toward the rear. Therefore, the protrusions 232 can be easily inserted into the holes 158 of the threaded member 152. When the first slope device 100 and the second slope device 200 are inserted until they abut against each other, the protrusions 232 and the holes 158 fit together, thereby preventing misalignment in the up-down and left-right directions.

[0048] Furthermore, L-shaped angle members 241R and 241L are fixed to both left and right ends of the slope portion 210 as connecting members. The angle members 241R and 241L have the same configuration as the angle members 141R and 141L of the first slope device 100. The angle members 241R and 241L have approximately the same length as the length of the slope portion 210 in the front-to-rear direction. The angle member 241R covers the side surface at the right end of the slope portion 210, and the angle member 241L covers the side surface at the left end of the slope portion 210. The angle members 241R and 241L are fixed to the slope portion 210 and the joist member 217 using bolts, rivets, etc.

[0049] Here, the front and side surfaces of the angle members 241R, 241L, i.e., the exposed surfaces, are colored a color, for example, red, different from the surface of the slope portion 210. The angle members 241R, 241L are not limited to being L-shaped, and may be plate members that simply cover the side surfaces of the right and left ends of the slope portion 210, or may be plate members that simply cover the surfaces of the right and left ends of the main slope portion 111. Furthermore, the angle member 241R has a connecting portion 242. On the other hand, the angle member 241L has a connected portion 243 (see Figures 9A and 9B described below). When multiple second slope devices 200 are installed side by side on the left and right, the connecting portion 242 and the connected portion 243 connect adjacent second slope devices 200 so that they do not separate. The connecting portion 242 and the connected portion 243 have the same configuration as the connecting portion 142 and the connected portion 143 of the first slope device 100, respectively.

[0050] Next, the first support portion 250 will be described. The first support portion 250 is located below the slope portion 210, on the front end side of the slope portion 210. The first support portion 250 comes into contact with the ground surface. The first support portion 250 supports the slope portion 210 so that the height direction of the slope portion 210 can be adjusted. The first support portion 250 also supports the slope portion 210 so that the gradient (inclination angle) of the slope portion 210 can be adjusted. The first support section 250 of this embodiment has support units 251a and 251b. The support units 251a and 251b are disposed below the front slope member 212b, on both the left and right sides of the front slope member 212b. The support units 251a and 251b have the same basic configuration. Therefore, the basic configuration of the two will be described here focusing on the support unit 251a, and differences in configuration will be described later.

[0051] As shown in FIG. 7, the support unit 251a includes a screw member 252 and an adjustment member 261. The threaded member 252 is fixedly attached to the slope portion 210 and is threadedly engaged with the adjustment member 261. Specifically, the threaded member 252 has a main body 253, an attachment portion 255, and a nut 257 as a female thread portion. Here, the main body 253 and the attachment portion 255 are an integral member formed by bending through press molding, and are made of, for example, iron. The threaded member 252 has a configuration similar to that of the threaded member 152 of the first slope device 100. Therefore, the main body 253 is plate-shaped and has a hole in the approximate center through which the adjustment member 261 is inserted. Furthermore, the attachment portion 255 is fixed to the front slope member 212b using screws, rivets, or the like through multiple attachment holes while abutting against the underside of the front slope member 212b.

[0052] When the support units 251a and 251b are attached to the slope portion 210, the axis of the nut 257 does not align with the vertical direction when viewed from the front-to-rear direction, but is intentionally tilted at a predetermined angle. That is, the extending direction of the attachment portion 255 of the main body portion 253 to which the nut 257 is fixed is designed so that it is intentionally not parallel to the horizontal plane when viewed from the front-to-rear direction.

[0053] The adjustment member 261 is threadedly engaged with the threaded member 252 and is in contact with a ground surface such as a floor. The adjustment member 261 has a bolt 262 as a male thread portion and a receiving seat 265. One side of the bolt 262 is exposed, and the other side is located within the receiving seat 265. The adjustment member 261 has a configuration similar to that of the adjustment member 161 of the first slope device 100. Therefore, the adjustment member 261 has multiple operating portions 267 around the entire outer periphery. The lower surface of the receiving seat 265 is not flat, but rather a curved surface that is convex downward. The portion of the lower surface of the receiving seat 265 that passes through the central axis of the bolt 262 is located at the lowest point. Note that the adjustment range of the second slope device 200 is greater than that of the first slope device 100, and therefore the length of the bolt 262 is longer than that of the bolt 162 of the first slope device 100.

[0054] To assemble and configure the support unit 251a, the bolt 262 of the adjustment member 261 is screwed into the nut 257 of the threaded member 252 from below and inserted into the hole in the main body 253. Finally, a screw 273 is used to insert the bolt 262 into the hole in the end face on one side, and a washer 272 is attached as a retaining part to the tip of one side of the adjustment member 261, thereby assembling the support unit 251a. The support unit 251b has the same configuration as the support unit 251a, but the direction in which the axis of the nut 257 inclines when viewed from the front-to-back direction is symmetrical with respect to the center line C of the slope portion 210 in the left-to-right direction. The assembled support unit 251a and support unit 251b are attached to the slope portion 210, respectively.

[0055] Next, the second support portion 280 will be described. The second support portion 280 is located below the slope portion 210, on the rear end side of the slope portion 210. The second support portion 280 is in contact with the ground surface. The second support portion 280 supports the slope portion 210 at a height apart from the ground surface. Furthermore, the second support portion 280 itself does not have a mechanism for adjusting the slope portion 210 in the height direction. The second support section 280 of this embodiment has support units 281a and 281b. The support units 281a and 281b are disposed below the rear slope member 212a, on both the left and right sides of the rear slope member 212a. The support units 281a and 281b have the same basic configuration. Therefore, the basic configuration of the two units will be described here focusing on the support unit 281a, and differences in configuration will be described later.

[0056] As shown in FIG. 7, the support unit 281 a includes a mounting member 282 and a grounding member 285 . The mounting member 282 is attached to the slope portion 210 with the ground contact member 285 fixed thereto. Specifically, the mounting member 282 has a main body portion 283 and a mounting portion 284. Here, the main body portion 283 and the mounting portion 284 are an integrated member formed by bending through press molding, and are made of, for example, iron. The mounting member 282 is generally hat-shaped when viewed from the front-to-rear direction.

[0057] The main body 283 is generally U-shaped and has a pair of side walls and a connecting portion that connects the side walls. The mounting portions 284 extend from the left and right ends of the main body 283 in directions away from each other. The distance between the pair of side walls of the main body 283 decreases as the distance from the mounting portion 284 increases. The mounting portion 284 is fixed to the rear slope member 212a using screws, rivets, or the like through multiple mounting holes while abutting against the underside of the rear slope member 212a.

[0058] The grounding member 285 comes into contact with a ground surface such as a floor. Specifically, the grounding member 285 has a main body 286 and a protrusion 287. The main body 286 and the protrusion 287 are an integrated member made of rubber. The main body 286 is generally L-shaped when viewed from the front-to-rear direction. When the grounding member 285 is fixed to the mounting member 282, the main body 286 is in contact with the outer side wall of the pair of side walls of the mounting member 282 and the underside of the main body 283 of the mounting member 282. The main body 286 is fixed to the mounting member 282 using screws, rivets, etc.

[0059] The protrusions 287 are portions that protrude from the underside of the main body 286 toward the floor. A plurality of protrusions 287 are formed at intervals in the front-rear direction. Each protrusion 287 has approximately the same shape along the left-right direction.

[0060] The dotted lines in Figures 8A and 8B show an enlarged view of the multiple protrusions 287. The shape of each protrusion 287 is similar to the shape of the protrusions 126 of the anti-slip members 124 and 134 of the first slope device 100. Therefore, the ground contact member 285 is less likely to move rearward than forward. Furthermore, the lower surfaces of the protrusions 287 are not in a straight line when connected together, but are curved at the rear and front so as to move away from the ground surface. Therefore, by adjusting the slope section 210 in the height direction, even if the protrusions 287 are tilted relative to the ground surface, one of the multiple protrusions 287 will contact the ground surface.

[0061] The support unit 281b has the same configuration as the support unit 281a, but the ground contact member 285 is configured symmetrically with respect to the center line C of the slope portion 210 in the left-right direction. The second slope device 200 can be assembled by attaching the support unit 281a and the support unit 281b to the slope portion 210, respectively.

[0062] Next, a case where the height of the slope portion 210 of the second slope device 200 is adjusted will be described with reference to FIGS. 8A, 8B, 9A, and 9B. 9A and 9B are rear views showing the configuration of the second slope device 200. FIG. 9A shows the state in which the protrusion amount of the adjustment member 261 is the shortest, i.e., the state in which the front end of the surface of the slope portion 210 is the lowest (the lower limit of the adjustment range). On the other hand, FIG. 9B shows the state in which the protrusion amount of the adjustment member 261 is the longest, i.e., the state in which the front end of the surface of the slope portion 210 is the highest (the upper limit of the adjustment range). The method of adjusting the height of the slope portion 210 is the same as that of the first slope device 100.

[0063] 9A and 9B, adjustment member 261 of support unit 251a and adjustment member 261 of support unit 251b are inclined relative to the ground surface when in contact with the ground. That is, axis S of bolt 262 of support unit 251a and axis S of bolt 262 of support unit 251b are inclined relative to the floor surface. The configuration of the second slope device 200 is similar to that of the first slope device 100. Therefore, the second slope device 200 as a whole is prevented from misaligning in the left-right direction.

[0064] 8A and 8B are side views showing a part of the second slope device 200. Here, the support unit 251a and the support unit 281a will be described, but the same applies to the support unit 251b and the support unit 281b. FIG. 8A shows a state in which the protrusion of the adjustment member 261 is at its shortest, which corresponds to the state in FIG. 9A. In the state in FIG. 8A, the lower end of the nut 257 and the seat 265 of the adjustment member 261 are in contact, so the protrusion of the adjustment member 261 cannot be made shorter than in this state. In the state in FIG. 8A, the surface of the slope portion 210 is substantially horizontal. That is, the second slope device 200 is height adjustable so that the slope portion 210 is in a horizontal state. However, the height does not have to be adjustable so that the slope portion 210 is in a horizontal state. The height may be adjustable so that the height from the ground surface to the front end of the surface of the slope portion 210 is lower than the height from the ground surface to the rear end of the surface of the slope portion 210 beyond the horizontal state.

[0065] Fig. 8B shows a state in which the amount of protrusion of adjustment member 261 is at its longest, which corresponds to the state in Fig. 9B. Although not shown, in the state in Fig. 8B, the upper end of nut 257 and washer 272 at the upper end of adjustment member 261 are in contact, so the amount of protrusion of adjustment member 261 cannot be made longer than in this state.

[0066] Here, as shown in Fig. 8A, in support unit 251a, adjustment member 261 is inclined relative to the ground surface when in contact with the ground. That is, axis S of bolt 262 of adjustment member 261 is inclined relative to the ground surface. Specifically, in a side view, bolt 262 of adjustment member 261 is inclined with the upper side facing forward and the lower side facing rearward. Also, as shown in Fig. 8A, in support unit 281a, mounting member 282 and ground member 285 are inclined, and of multiple protrusions 287, front protrusion 287 is in contact with the ground surface. 8B, adjustment member 261 is not vertical, but strictly speaking, is in contact with the floor at a slight incline. That is, axis S of bolt 262 of adjustment member 261 is inclined with respect to the ground surface. Specifically, in a side view, bolt 262 of adjustment member 261 is inclined with the upper side facing forward and the lower side facing backward. Also, as shown in FIG. 8B, in support unit 281b, mounting member 282 and ground member 285 are not inclined, and of the multiple protrusions 287, protrusion 287 located approximately in the center in the front-to-rear direction is in contact with the ground surface. The configuration of the second slope device 200 is similar to that of the first slope device 100. Therefore, the occurrence of a gap between a step or the like located on the front side and the front slope member 212b is suppressed.

[0067] 8A, when the adjustment range is at the lower limit, the height Hb2 from the ground surface to the rear end of the surface of slope portion 210 is approximately 150 mm. On the other hand, when the adjustment range is at the upper limit, as shown in FIG. 8B, the height Hb2 from the ground surface to the rear end of the surface of slope portion 210 is approximately 140 mm. Thus, the height of the rear end of the surface of slope portion 210 is lower when the adjustment range is at the upper limit than when the adjustment range is at the lower limit. 6B, the height Ha from the ground to the front end of the surface of the slope section 110 is approximately 150 mm. Therefore, when the second slope device 200 is adjusted to the upper limit of its height adjustment range, the height Hb2 from the ground to the rear end of the surface of the slope section 210 of the second slope device 200 is lower than the height Ha from the ground to the front end of the surface of the slope section 110 of the first slope device 100 when the first slope device 100 is adjusted to the upper limit of its height adjustment range, and the difference is within a predetermined range (approximately 15 mm or approximately 10 mm, preferably approximately 5 mm). The relationship in which the difference between the height Ha and the height Hb2 is within the predetermined range is maintained within the height adjustment range of the second slope device 200. However, the height Hb2 from the ground surface to the rear end of the surface of the slope portion 210 of the second slope device 200 when the second slope device 200 is adjusted to the upper limit of the height adjustment range may be higher than or approximately the same as the height Ha from the ground surface to the front end of the surface of the slope portion 110 of the first slope device 100 when the first slope device 100 is adjusted to the upper limit of the height adjustment range. If the height Hb2 is higher than the height Ha, it is preferable that the difference be within a predetermined range (approximately 15 mm or approximately 10 mm, preferably approximately 5 mm).

[0068] <Configuration of pedestal device 300> By placing the first slope device 100 on the ground, the pedestal device 300 is stacked on top of the first slope device 100. Furthermore, by placing the pedestal device 300 adjacent to the first slope device 100, it can also function as a landing and can be used as a landing device. The pedestal device 300 has a height adjustment range that overlaps at least partially with the height adjustment range of the first slope device 100. Furthermore, the pedestal device 300 can be adjusted to any height within the height adjustment range.

[0069] FIG. 10 is an exploded perspective view showing the configuration of the pedestal device 300. As shown in FIG. The base device 300 has a grounded portion 310 and a support portion 350 . The grounded portion 310 has the function of allowing the first slope device 100, the second slope device 200, and other pedestal devices 300 to be grounded on its surface, thereby allowing other devices to be stacked on top. The grounded portion 310 also functions as a landing section for people and objects to pass through when the pedestal device 300 is used as a landing device. The grounded portion 310 is not continuous with the ground surface, but is positioned at a distance in the height direction from the ground surface. In a plan view, the grounded portion 310 has, for example, a substantially rectangular shape with a shorter front-to-back length than a left-to-right length. The grounded portion 310 has a length in the front-to-back direction (Lc shown in FIGS. 11A and 11B, which will be described later) of approximately 300 mm (for example, in the range of 200 mm to 400 mm) and a length in the left-to-right direction (Wc shown in FIGS. 12A and 12B, which will be described later) of approximately 600 mm (for example, 400 mm to 800 mm). In this way, the length of the grounded portion 310 in the short direction is approximately half the length in the long direction.

[0070] The grounded portion 310 has a height adjustment range of a third range. Specifically, the height from the ground surface to the surface of the grounded portion 310 (Hc shown in FIGS. 11A and 11B) can be continuously adjusted to any height between approximately 100 mm and approximately 150 mm, with an adjustment width of approximately 50 mm (for example, 40 mm to 80 mm). The pedestal device 300 has a height adjustment range that is approximately the same as the height adjustment range of the first slope device 100. However, the pedestal device 300 may have a height adjustment range that at least partially overlaps with the height adjustment range of the first slope device 100, or may have a height adjustment range that includes the height adjustment range of the first slope device 100. The pedestal device 300 has a height adjustment range that is approximately the same as the adjustment range of the first slope device 100.

[0071] 11A and 11B are side views showing the configuration of pedestal device 300. FIG. The grounded portion 310 has a plurality of (e.g., three) grounded members 312 and a plurality of (e.g., five to seven) rail members 317. The grounded members 312 are, for example, substantially flat plates whose left-to-right length is longer than their front-to-back length. The grounded members 312 are, for example, made of an aluminum alloy and formed by extrusion molding. Furthermore, the grounded members 312 have ridges integrally formed on their surfaces in the left-to-right direction as anti-slip protrusions. The ridges of the grounded members 312 have a substantially trapezoidal cross section. Of the grounded portion 310, the rear grounded member 312a has a different cross-sectional shape from the central grounded member 312. The rear grounded member 312a and the front grounded member 312b have the same configuration as the rear slope member 212a and the front slope member 212b of the second slope device 200. That is, the rear grounded member 312a has a holding portion 315 extending from the rear end toward the front side, and the holding portion 315 holds the beam member 317 from below. The front grounded member 312b has a holding portion 313 extending from the front end toward the rear side, and the holding portion 313 holds the beam member 317 from below. The rear grounded member 312a and the front grounded member 312b have approximately the same cross-sectional shape.

[0072] The beam members 317 are hollow members with a roughly rectangular cross section along the front-to-rear direction. The beam members 317 have the same configuration as the beam members 117 of the first slope device 100. The multiple beam members 317 are arranged in parallel on the left and right at intervals. The beam members 317 are fixed to the underside of the grounded members 312 using bolts or rivets. Therefore, the grounded members 312 and the beam members 317 are configured to intersect with each other.

[0073] Furthermore, grounded portion 310 has visual identification members 318R and 318L for identifying the left and right ends of grounded portion 310, and visual identification members 318F and 318Rr for identifying the front and rear ends of grounded portion 310 (see FIG. 10 ). Visual identification members 318R, 318L, 318F, and 318Rr function as visual identification members. Visual identification members 318R, 318L, 318F, and 318Rr are colored a different color from the surface of grounded portion 310, for example, red. Coloring methods include coloring by surface treatment such as anodizing, coloring by applying paint, coloring by attaching stickers, and coloring by mixing colorants. Visual identification members 318R, 318L, 318F, and 318Rr are long plate members made of, for example, an aluminum alloy. Visualization member 318R is arranged along the front-to-rear direction at the right end of the surface of grounded portion 310, and visualization member 318L is arranged along the front-to-rear direction at the left end of the surface of grounded portion 310. Furthermore, visualization member 318F is arranged along the left-to-right direction at the front end of the surface of grounded portion 310, and visualization member 318Rr is arranged along the left-to-right direction at the rear end of the surface of grounded portion 310. Furthermore, visualization members 318R, 318L, 318F, 318R are fixed to the top of grounded member 312 or the top of rail member 317.

[0074] Next, the support portion 350 will be described. The support portion 350 is located below the grounded portion 310. The support portion 350 is in contact with the ground surface. The support portion 350 supports the grounded portion 310 so that the height of the grounded portion 310 can be adjusted. The support part 350 of this embodiment has support units 351a to 351d. The support units 351a to 351d are arranged at the four corners below the grounded part 310. The support units 351a to 351d have the same configuration. Therefore, only the support unit 351a will be described here.

[0075] As shown in FIG. 10, the support unit 351a includes a screw member 352 and an adjustment member 361. The screw member 352 is fixedly attached to the grounded part 310 and is screwed with the adjustment member 361. Specifically, the screw member 352 has a main body 353 and a nut 357 as a female screw. The main body 353 is a member formed by bending both the front and rear ends by press molding, and is made of, for example, iron. The main body 353 is plate-shaped and has a hole 354 in the approximate center through which the adjustment member 361 is inserted. The main body 353 is fixed to the grounded part 312b using screws, rivets, etc., while abutting against the underside of the front grounded part 312b.

[0076] Nut 357 is fixed, for example by welding, to the underside of main body 353 in a state in which it communicates with hole 354 located approximately in the center of main body 353. When support units 351a to 351d are attached to grounded portion 310, the axis of nut 357 is aligned vertically.

[0077] The adjustment member 361 is screwed into the screw member 352 and is grounded on a ground surface such as a floor. The adjustment member 361 has a bolt 362 as a male thread portion and a receiving seat 365. One side of the bolt 362 is exposed, and the other side is located within the receiving seat 365.

[0078] The catch 365 is made of, for example, resin or rubber, and has a generally circular disk shape that is larger than the outer diameter of the bolt 362. The catch 365 has a plurality of operating portions 367 around the entire circumference of its outer periphery that allow the operator to rotate the adjustment member 361 around its axis. The operating portions 367 are concave from the outer periphery toward the center of the catch 365, but are not limited to this shape. The catch 365 also has a plurality of protrusions on its bottom, and an imaginary surface formed by connecting the tips of the plurality of protrusions is flat.

[0079] To assemble and configure support unit 351a, bolt 362 of adjustment member 361 is screwed into nut 357 of threaded member 352 from below and inserted into hole 354 of main body 353. Finally, screw 373 is inserted into the hole in one end face of bolt 362, and washer 372 is attached to the tip of one side of adjustment member 361 as a retaining member, thereby assembling support unit 351a. The support units 351b to 351d have the same configuration as the support unit 351a, and can be assembled in the same manner as the support unit 351a. The assembled support units 351a to 351d are attached to the grounded portion 310, whereby the pedestal device 300 can be assembled.

[0080] Next, a case where the height of grounded portion 310 of pedestal device 300 is adjusted will be described with reference to FIGS. 11A, 11B, 12A, and 12B. 11A and 11B are side views showing the configuration of base device 300, and FIGS. 12A and 12B are rear views showing the configuration of base device 300. FIGS. 11A and 12A show the state in which the protrusion amount of adjustment member 361 is the shortest, i.e., the state in which the surface of grounded portion 310 is the lowest (the lower limit of the adjustment range). In the states of FIGS. 11A and 12A, the lower end of nut 357 and receiving seat 365 of adjustment member 361 are in contact, so the protrusion amount of adjustment member 361 cannot be made shorter than in this state. In the states of FIGS. 11A and 12A, the surface of grounded portion 310 is horizontal. 11B and 12B show the state in which the protrusion of adjustment member 361 is at its longest, i.e., the state in which the surface of grounded portion 310 is at its highest (the upper limit of the adjustment range). Although not shown, in the states of FIGS. 11B and 12B, the upper end of nut 357 and washer 372 at the upper end of adjustment member 361 are in contact, so the protrusion of adjustment member 361 cannot be made longer than in this state. In the states of FIGS. 11B and 12B, the surface of grounded portion 310 is horizontal.

[0081] The operator holds the operating portion 367 of the adjustment member 361 while slightly lifting the base device 300, and rotates the adjustment member 361 around its axis, thereby changing the position at which the adjustment member 361 is screwed into the nut 357, thereby adjusting the amount of protrusion of the adjustment member 361. Adjusting the amount of protrusion of the adjustment member 361 changes the height of the grounded portion 310. Here, the position at which the adjustment member 161 of each of the support units 351a to 351d is screwed into the nut 357 can be changed. Therefore, even if the contact surface on which the support part 350 of the base device 300 is grounded is uneven, the surface of the grounded part 310 can be kept horizontal within the adjustment range by lengthening or shortening the protrusion amount of the adjustment member 361 of each of the support units 351a to 351d to match the unevenness.

[0082] 11A and 12A, when the adjustment range is at its lower limit, the height Hc from the ground surface to the surface of the grounded portion 310 is approximately 100 mm. As described above, when the adjustment range is at its lower limit in the first slope device 100 as shown in FIG. 6A, the height Ha from the ground surface to the front end of the surface of the slope portion 110 is approximately 100 mm. Therefore, the height Hc from the ground surface to the surface of the grounded portion 310 of the pedestal device 300 when the height direction of the pedestal device 300 is adjusted to its lower limit is approximately the same as the height Ha from the ground surface to the front end of the surface of the slope portion 110 of the first slope device 100 when the height direction of the first slope device 100 is adjusted to its lower limit.

[0083] 11B and 12B, the height Hc from the ground surface to the surface of the grounded portion 310 is approximately 150 mm. Also, as described above, when the adjustment range is at the upper limit as shown in FIG. 6B in the first slope device 100, the height Ha from the ground surface to the front end of the surface of the slope portion 110 is approximately 150 mm. Therefore, the height Hc from the ground surface to the surface of the grounded portion 310 of the pedestal device 300 when the pedestal device 300 is adjusted to the upper limit of the height adjustment range is approximately the same as the height Ha from the ground surface to the front end of the surface of the slope portion 110 of the first slope device 100 when the first slope device 100 is adjusted to the upper limit of the height adjustment range.

[0084] <Configuration of guard section 400> The guard portions 400 are detachably attached to the left and right ends of the first slope device 100 and the second slope device 200. 13 is a cross-sectional view showing the configuration of the guard part 400. In FIG. 13, the guard part 400 is shown attached to the left end of the first slope device 100. The guard section 400 prevents people or objects from protruding from or falling off the left or right ends of the first slope device 100 or the second slope device 200 when they pass through the first slope device 100 or the second slope device 200.

[0085] The guard portion 400 has a substantially trapezoidal cross section and is elongated in the front-to-rear direction. The length of the guard portion 400 in the front-to-rear direction is shorter than the length La of the first slope device 100 in the front-to-rear direction or the length Lb of the second slope device 200 in the front-to-rear direction. The guard portion 400 is made of, for example, an aluminum alloy and is formed by extrusion molding. The guard portion 400 has an inner wall portion 401, an outer wall portion 402, a top portion 403, and a bottom portion 404. The inner wall portion 401 and the outer wall portion 402 are positioned to face each other, and the top portion 403 and the bottom portion 404 are positioned to face each other. The outer wall portion 402 is inclined so as to move away from the inner wall portion 401 as it moves from the top portion 403 side to the bottom portion 404 side. In addition, the bottom portion 404 has a plurality of screw holes 405 formed at intervals in the front-rear direction for screwing in a fixing member 410.

[0086] The guard unit 400 also has a visual confirmation member 406 for identifying the left and right ends of the slope units 110 and 210. The visual confirmation member 406 functions as a visual confirmation member. The visual confirmation member 406 is colored a color, for example, red, different from the surface of the main slope unit 111 of the first slope device 100 and the slope unit 210 of the second slope device 200. The coloring may be achieved by a surface treatment such as anodizing, by applying paint, by attaching a sticker, or by mixing a coloring agent. The visual confirmation member 406 is a long plate member made of, for example, an aluminum alloy. The visual confirmation member 406 is arranged along the upper surface of the top unit 403 of the guard unit 400. The visual confirmation member 406 may also be arranged on the inner wall unit 401 or the outer wall unit 402.

[0087] The fixing member 410 has a screw portion 411 as a male screw portion, and an operating portion 412. The screw portion 411 screws into the screw hole 405 of the bottom portion 404. The operating portion 412 is a part that an operator operates when rotating the fixing member 410 around the axis of the screw portion 411. The operating portion 412 has a shape that allows it to be operated by hand without using a tool. When attaching the guard unit 400 to the first slope device 100, the worker places the guard unit 400 at the left end of the slope unit 110, and threads the screw portion 411 of the fixing member 410 from the underside of the slope unit 110 through holes formed in the slope member 112 and the joist member 117, into the screw hole 405 in the bottom portion 404 of the guard unit 400. Here, the guard unit 400 is attached to the left end of the first slope device 100, but it can also be attached to the right end of the first slope device 100 or both ends of the second slope device 200 in a similar manner. The guard unit 400 is optional and does not necessarily have to be attached to the first slope device 100 or the second slope device 200. Furthermore, the guard unit 400 is not limited to being attached to the first slope device 100 or the second slope device 200, and may also be attached to the base device 300.

[0088] Next, a case where the slope system 10 shown in Fig. 1 is installed at a work site will be described. First, a worker places the first slope device 100a on the floor away from any steps. The first slope device 100a is previously adjusted to the upper limit of its height adjustment range. Next, the worker places the three pedestal devices 300a-300c on the floor surface between the first slope device 100a and the step, spaced apart in the front-to-rear direction. The pedestal device 300a is placed adjacent to the first slope device 100a so that it is in contact with it. The pedestal device 300c is placed adjacent to the first slope device 100a so that it is in contact with the vertical surface of the step. The three pedestal devices 300a-300c are previously adjusted to the upper limit of the height adjustment range. Therefore, the height Ha of the adjacent first slope device 100a and the height Hc of the pedestal device 300a are approximately the same.

[0089] Next, the worker grounds the first slope device 100b to the grounded portion 310 of the pedestal device 300a and the grounded portion 310 of the pedestal device 300b. Specifically, the seat portion 123, the anti-slip member 124, and the anti-slip member 134 of the first slope device 100b are grounded to the grounded portion 310 of the pedestal device 300a, and the support portion 150 of the first slope device 100b is grounded to the grounded portion 310 of the pedestal device 300b. Therefore, the first slope device 100b is placed on the pedestal devices 300a and 300b so as to bridge between the pedestal devices 300a and 300b. In this way, the grounded portions 310 of the pedestal devices 300a and 300b become the grounding surfaces of the first slope device 100b. Furthermore, the first slope device 100b is placed adjacent to the first slope device 100a so as to be grounded. Here, the first slope device 100b is grounded to the base device 300a, which has a height Hc, and is adjacent to the first slope device 100a, which has a height Hc that is approximately the same as the height Hc. Therefore, the first slope device 100b side of the first slope device 100a and the first slope device 100a side of the first slope device 100b are adjacent at approximately the same height. Note that the first slope device 100b is previously adjusted to the upper limit of the height adjustment range.

[0090] Next, the worker grounds the second slope device 200 to the grounded portion 310 of the pedestal device 300b and the grounded portion 310 of the pedestal device 300c. Specifically, the second support portion 280 of the second slope device 200 is grounded to the grounded portion 310 of the pedestal device 300b, and the first support portion 250 of the second slope device 200 is grounded to the grounded portion 310 of the pedestal device 300c. Therefore, the second slope device 200 is placed on the pedestal devices 300b and 300c so as to bridge between the pedestal devices 300b and 300c. In this way, the grounded portions 310 of the pedestal devices 300b and 300c become the grounding surface of the second slope device 200. Furthermore, the second slope device 200 is placed adjacent to the first slope device 100b so as to be in contact with it. At this time, by inserting each protrusion 232 of the connection portion 230 of the second slope device 200 into the hole 158 of the screw member 152 of the first slope device 100b, it is possible to prevent misalignment between the first slope device 100b and the second slope device 200. Note that here, the first slope device 100b and the second slope device 200 are grounded to the base devices 300a to 300c at approximately the same height Hc, and the first slope device 100b is adjusted to the upper limit of the height adjustment range, so the second slope device 200 side of the first slope device 100b and the first slope device 100b side of the second slope device 200 are adjacent and at approximately the same height.

[0091] Finally, depending on the step, the worker adjusts the height Hb1 from the ground surface to the front end of the surface of the slope portion 210 of the second slope device 200. Here, since the ground surface is the pedestal device 300c with a height Hc, the height from the floor surface to the front end of the surface of the slope portion 210 of the second slope device 200 is (Hc + Hb1), which can accommodate high steps. As described above, according to the slope system 10 of this embodiment, by combining the first slope device 100 with a device of a different type from the first slope device 100, it is possible to accommodate high steps.

[0092] Figure 14 shows an example of the configuration of a slope system corresponding to each step. 100mm, 200mm, 300mm, and 400mm in Figure 14 indicate the step height, i.e., the distance from the floor to the step (upper step). In Figure 14, the lower and upper limits of the height adjustment range for each slope system are indicated by dashed-dotted rectangles.

[0093] The slope systems 20A and 20B each have the same configuration and include one first slope device 100. The slope system 20A indicates that the height adjustment range of the first slope device 100 is at the lower limit, so that the height from the floor surface to the front end of the surface of the slope section 110 of the first slope device 100 is approximately 100 mm. On the other hand, the slope system 20B sets the height adjustment range of the first slope device 100 to the upper limit, which indicates that the height from the floor surface to the front end of the surface of the slope section 110 of the first slope device 100 is approximately 150 mm (155 mm to be precise).

[0094] The slope systems 30A and 30B each have the same configuration and include one first slope device 100 and one second slope device 200. The slope systems 30A and 30B are arranged in the order of the first slope device 100 and the second slope device 200 from the rear to the front, with the first slope device 100 and the second slope device 200 adjacent to each other. The first slope device 100 is pre-adjusted to the upper limit of the height adjustment range. By setting the adjustment range of the second slope device 200 to the lower limit, the slope system 30A indicates that the height from the floor surface to the front end of the surface of the slope portion 210 of the second slope device 200 is approximately 150 mm (150 mm to be precise). On the other hand, the slope system 30B sets the height adjustment range of the second slope device 200 to the upper limit, which indicates that the height from the floor surface to the front end of the surface of the slope section 210 of the second slope device 200 is approximately 250 mm (252 mm to be precise). In addition, in the slope systems 30A and 30B, the height from the floor surface to the front end of the surface of the slope section 210 of the second slope device 200 can be adjusted to any height within a range of approximately 150 mm to approximately 250 mm, and in either case the gradient is 1 / 6 or less.

[0095] Slope systems 40A and 40B have the same configuration and include two first slope devices 100 and two pedestal devices 300. In slope systems 40A and 40B, the rear first slope device 100 is in contact with the floor surface, and the front first slope device 100 is in contact with the two pedestal devices 300. Slope systems 40A and 40B have a configuration in which some of the slope system 10 in FIG. 1 described above (first slope device 100a, first slope device 100b, pedestal device 300a, pedestal device 300b) are extracted. The slope system 40A sets the adjustment ranges of all of the two first slope devices 100 and the two pedestal devices 300 to the lower limit, so that the height from the floor surface to the front end of the surface of the slope portion 110 of the front first slope device 100 is approximately 200 mm (204 mm to be precise). On the other hand, the slope system 40B sets the upper limit of all adjustment ranges of the two first slope devices 100 and the two pedestal devices 300, thereby indicating that the height from the floor surface to the front end of the surface of the slope portion 110 of the front first slope device 100 is approximately 300 mm (strictly speaking, 308 mm). In addition, in the slope systems 40A and 40B, the height from the floor surface to the front end of the surface of the slope section 110 of the first slope device 100 on the front side can be adjusted to any height within a range of approximately 200 mm to approximately 300 mm, and in either case the gradient is 1 / 6 or less.

[0096] The slope systems 50A and 50B each have the same configuration, including two first slope devices 100, one second slope device 200, and three third base devices. The slope systems 50A and 50B have the same configuration as the slope system 10 shown in FIG. 1 described above. The slope system 50A sets the adjustment range of the two first slope devices 100 and the three pedestal devices 300 at the upper limit and the adjustment range of the second slope device 200 at the lower limit, thereby indicating that the height from the floor surface to the front end of the surface of the slope portion 210 of the second slope device 200 is approximately 300 mm (303 mm to be precise). On the other hand, the slope system 50B sets the adjustment ranges of all of the two first slope devices 100, the second slope device 200, and the three pedestal devices 300 to the upper limit, which indicates that the height from the floor surface to the front end of the surface of the slope portion 210 of the second slope device 200 is approximately 400 mm (strictly speaking, 404 mm). In addition, in the slope systems 50A and 50B, the height from the floor surface to the front end of the surface of the slope section 210 of the second slope device 200 can be adjusted to any height within a range of approximately 300 mm to approximately 400 mm, and in either case the gradient is 1 / 6 or less.

[0097] Thus, according to the slope system of this embodiment, by combining the first slope device 100 with a device of a different type than the first slope device 100, it is possible to adjust the height to any height beyond the upper limit of the height adjustment range of the first slope device 100, thereby being able to accommodate a variety of steps.

[0098] (Second embodiment) FIG. 15 is a perspective view showing an example of the configuration of a slope system 60 according to the second embodiment. The slope system 60 of this embodiment uses the pedestal device 300 as a landing device to overcome obstacles such as cables placed on the floor surface. Specifically, the slope system 60 includes two first slope devices 100 and one pedestal device 300.

[0099] In the slope system 60, the first slope device 100, the pedestal device 300, and the first slope device 100 are arranged in this order from rear to front. According to the slope system 60, the rear end of the first slope device 100 on the rear side is continuous with the floor surface and is adjacent to the pedestal device 300 so that its front end is in contact with the floor surface. The front side first slope device 100 is the first slope device 100 shown in FIG. 2 above, but with its front end reversed, and is adjacent to the pedestal device 300 so that its front end is continuous with the floor surface and its rear end is in contact with the pedestal device 300. The grounded portions 310 of the pedestal device 300 are each continuous with the slope portions 110 of the first slope device 100. According to the slope system 60 configured in this manner, even if an obstacle is present, it can be easily overcome by placing the obstacle below the first slope device 100 or the pedestal device 300. The number of pedestal devices 300 is not limited to one, but two or more may be arranged adjacent to each other.

[0100] (Third embodiment) FIG. 16 is a perspective view showing an example of the configuration of a slope system 70 according to the third embodiment. The slope system 70 of this embodiment uses a pedestal device 300 as a landing device. Specifically, the slope system 70 includes two first slope devices 100 and two pedestal devices 300 to overcome obstacles such as cables placed on the floor surface.

[0101] In the slope system 70, a first slope device 100 and two pedestal devices 300 are arranged in a front-to-back manner, with the first slope device 100 adjacent to the right end of the pedestal device 300. According to the slope system 70, the rear end of the rear first slope device 100 is adjacent to the pedestal device 300, with its rear end continuing from the floor and its front end adjacent to the pedestal device 300. The first slope device 100 on the right side is the slope device 100 shown in FIG. 2 arranged in the left-right direction, with its right end continuing from the floor and its left end adjacent to the pedestal device 300. Furthermore, the length of the grounded portion 310 of the pedestal device 300 in the short direction is approximately half the length in the long direction. Therefore, by arranging two pedestal devices 300 in parallel, a substantially square shape is formed, with each side being the same length as the width of the first slope device 100. The grounded portions 310 of the pedestal device 300 are each continuous with the slope portions 110 of the first slope device 100. According to the slope system 70 configured in this manner, the direction of the slope device 100 can be changed by the pedestal device 300. Note that the number of pedestal devices 300 is not limited to two, and three or more pedestal devices 300 may be arranged adjacent to each other.

[0102] (Fourth embodiment) FIG. 17 is a perspective view showing an example of the configuration of a slope system 80 according to the fourth embodiment. The slope system 80 of this embodiment includes two first slope devices 100, one second slope device 200, and four base devices 300 in order to overcome high steps at a low gradient.

[0103] The slope system 80 is arranged in the order of first slope device 100, second slope device 200, and first slope device 100 from the rear to the front. The front first slope device 100 is stacked vertically and is grounded on the pedestal device 300 so as to span between the pedestal devices 300 that are separated in the front and rear. In the slope system 80 configured in this way, the adjustment range of the front first slope device 100 can be adjusted from the lower limit to the upper limit, so that the height from the floor surface to the front end of the surface of the slope portion 110 of the front first slope device 100 can be adjusted in the range of approximately 350 mm to approximately 400 mm.

[0104] (Fifth embodiment) FIG. 18 is a perspective view showing an example of the configuration of a vertical connecting member 500 according to the fifth embodiment. The vertical connecting members 500 connect the stacked base devices 300 to each other so that the stacked base devices 300 do not separate in the vertical direction.

[0105] The vertical connecting member 500 includes a main body portion 501 and a lock portion 510 . The main body 501 has the function of connecting the upper and lower pedestal devices 300 by being positioned so as to sandwich the grounded portion 310 of the lower pedestal device 300 and the receiving seat 365 of the upper pedestal device 300 from above and below. The main body 501 is roughly U-shaped when viewed from the front-to-rear direction, and has an upper portion 502, a lower portion 506, and a middle portion 508. In this embodiment, the upper portion 502, the lower portion 506, and the middle portion 508 are an integrated member formed by bending through press molding, and are made of, for example, iron.

[0106] The upper portion 502 and the lower portion 506 are generally plate-shaped and extend horizontally from the upper and lower ends of the intermediate portion 508, respectively. The upper portion 502 and the lower portion 506 have grooves 503 and 507 formed at the ends opposite the ends on the intermediate portion 508 side, respectively. The grooves 503 and 507 overlap in a plan view and communicate in the up-down direction through the grooves 503 and 507. The groove widths (front-to-back widths) of the grooves 503 and 507 are larger than the outer diameter of the bolt 362 of the adjustment member 361 and smaller than the diameter of the circumscribing circle of the hexagonal shape of the nut 357. The ends of the grooves 503 and 507 on the intermediate portion 508 side are tapered so that the shape of the apex angle of the hexagonal shape of the nut 357 matches.

[0107] The upper part 502 also has a pair of locking fasteners 504 at positions spaced apart in the front-to-rear direction with the groove 503 sandwiched between them. Each of the pair of locking fasteners 504 is generally plate-shaped and extends upward from the horizontal plate surface of the upper part 502. Each of the pair of locking fasteners 504 has a fastening hole 505 formed therethrough in the front-to-rear direction. The two fastening holes 505 overlap when viewed from the front-to-rear direction and are connected in the front-to-rear direction. Locking parts 510 are inserted into the two fastening holes 505. The intermediate portion 508 is generally plate-shaped and extends in the vertical direction. The vertical length of the intermediate portion 508 is greater than the vertical thickness of the grounded portion 310 of the base device 300, but is smaller than the combined thickness of the grounded portion 310 and the seat 365.

[0108] The locking portion 510 has a function of locking the state in which the main body portion 501 connects the upper pedestal device 300 and the lower pedestal device 300. The locking portion 510 is generally shaft-shaped and is made of, for example, iron. The locking portion 510 has a length longer than the distance between the pair of locking fasteners 504 of the main body portion 501. In addition, the locking portion 510 can be inserted into the two fastening holes 505 of the pair of locking fasteners 504.

[0109] Next, a method for connecting the stacked pedestal devices 300 to each other so that the stacked pedestal devices 300 do not separate in the vertical direction will be described using the vertical connecting member 500. Here, a case where the pedestal devices 300 are connected to each other on the support unit 351a side of the pedestal devices 300 will be described, but the pedestal devices 300 can also be connected to each other on the support unit 351b to 351d sides in the same manner. First, the worker positions the upper and lower connecting members 500 to the sides of the stacked pedestal devices 300. Next, the worker moves the upper and lower connecting members 500 toward the pedestal devices 300, inserting the bolts 362 of the support units 351a of the upper pedestal device 300 into the grooves 503 of the upper part 502 and inserting the nuts 357 (see FIG. 19 ) of the support units 351a of the lower pedestal device 300 into the grooves 507 of the lower part 506. The worker moves the upper and lower connecting members 500 until the bolts 362 and the nuts 357 abut against the ends of the grooves 503 and 507, respectively. Finally, the worker inserts the locking portions 510 into the two fastening holes 505 of the lock fastening portions 504, thereby completing the connection of the pedestal devices 300 on the support unit 351a side.

[0110] FIG. 19 is a rear view showing a state in which the stacked pedestal devices 300 are connected by the upper and lower connecting members 500 on the support unit 351a and 351b sides. 19 , the upper and lower connecting members 500 are positioned so as to sandwich the grounded portion 310 of the lower pedestal device 300 and the receiving seat 365 of the upper pedestal device 300 from above and below. Therefore, even if an external force (e.g., vibration) acts such that the upper pedestal device 300 moves upward away from the lower pedestal device 300, the upper portion 502 of the upper and lower connecting member 500 abuts against the receiving seat 365 of the upper pedestal device 300, thereby preventing the upper pedestal device 300 from moving away from the lower pedestal device 300. In addition, the locking portion 510 is inserted into the fastening hole 505 of the lock fastening portion 504 on the center line C side of the bolt 362 of the upper pedestal device 300. Therefore, even if an external force (e.g., vibration) acts on the upper and lower connecting members 500 such that they move outward in the left-right direction from the base device 300, the locking portion 510 abuts against the bolt 362 of the upper base device 300, thereby preventing the upper and lower connecting members 500 from unintentionally detaching from the base device 300.

[0111] In this embodiment, the upper and lower connecting members 500 have been described as being used to connect stacked pedestal devices 300 together, but this is not limited to this case, and they may also be used to connect a lower pedestal device 300 to an upper first slope device 100, or to connect a lower pedestal device 300 to an upper second slope device 200.

[0112] (Sixth embodiment) FIG. 20 is a perspective view showing an example of the configuration of a connecting member 600 according to the sixth embodiment. The connecting member 600 connects the two first slope devices 100 arranged on the left and right so that they do not separate in the left-right direction. The connecting member 600 is arranged across the first slope device 100 on the right side and the first slope device 100 on the left side, and multiple connecting members 600 (two in this case) are arranged spaced apart in the front and rear directions.

[0113] As shown in the enlarged view of FIG. 20, the connecting member 600 is roughly U-shaped when viewed from the front-to-rear direction, and is made of, for example, iron. The connecting member 600 has a pair of shafts 601 and a handle portion 602. The pair of shafts 601 are axially shaped and extend downward from both ends of the handle portion 602. The pair of shafts 601 are inserted into holes 180 formed in the slope portions 110 of the two first slope devices 100 arranged on the left and right, respectively. The handle portion 602 is a portion to be grasped by hand, and is axially shaped and extends in the left-to-right direction. In addition, the outer circumferential surface of the handle portion 602 is provided with knurled grooves to prevent slipping.

[0114] Next, a method for connecting two first slope devices 100 arranged on the left and right sides using the connecting member 600 so that the first slope devices 100 do not separate in the left-right direction will be described. First, the worker positions the connecting member 600 above the holes 180 formed in the slope portions 110 of the first slope devices 100 arranged on the left and right. Next, the worker inserts the pair of shaft portions 601 of the connecting member 600 by dropping them into the holes 180. When the handle portions 602 of the connecting member 600 are placed on the slope portions 110 of the left and right first slope devices 100, the connection of the first slope devices 100 with one connecting member 600 is completed. Similarly, the first slope devices 100 are connected with the other connecting members 600.

[0115] Even if an external force (e.g., vibration) acts to move the first slope devices 100 arranged on the left and right away from each other, the pair of shaft portions 601 of the connecting member 600 are inserted into the holes 180 of the slope portion 110, so that the first slope devices 100 arranged on the left and right away will not move away from each other. Although the connecting member 600 of this embodiment has been described as being used to connect first slope devices 100 together, the present invention is not limited to this case and may be used to connect second slope devices 200 arranged in the left-right direction together, or to connect pedestal devices 300 arranged in the left-right direction together. In this case, this can be achieved by forming holes 180 in the second slope devices 200 and the pedestal devices 300 for inserting the shaft portions 601 of the connecting member 600.

[0116] Furthermore, although the connecting member 600 of this embodiment has been described as being used to connect devices of the same type arranged in the left-right direction, it is not limited to this case and may also be used to connect devices of the same type arranged in the front-to-back direction or devices of different types arranged in the front-to-back direction. In the example of the slope system 10 shown in Figure 1, the connecting member 600 may be arranged across the first slope device 100a and the first slope device 100b, or across the first slope device 100b and the second slope device 200. In the example of the slope system 60 shown in FIG. 15, the connecting member 600 may be disposed across the first slope device 100 and the base device 300. In the example of the slope system 70 shown in FIG. 16, the connecting member 600 may be arranged to straddle the first slope device 100 and the pedestal device 300, or may be arranged to straddle the pedestal devices 300 themselves. In the example of the slope system 80 shown in Figure 17, the connecting member 600 may be arranged across the first slope device 100 and the second slope device 200, or across the second slope device 200 and the first slope device 100. When the connecting member 600 is used in the slope system of Figures 1, 15, 16, and 17 described above, this can be achieved by forming holes 180 in the first slope device 100, the second slope device 200, and the base device 300 for inserting the shaft portion 601 of the connecting member 600.

[0117] The present invention has been described above in conjunction with the above-mentioned embodiments, but the present invention is not limited to only the above-mentioned embodiments, and modifications and the like are possible within the scope of the present invention, and the above-mentioned embodiments may be combined as appropriate. Although the above-described embodiment of the slope system has been described as being capable of adjusting the height from the floor to approximately 400 mm, by stacking the base devices 300, it is also possible to adjust the height to more than approximately 400 mm. Furthermore, in the slope system of the above-described embodiment, the type of device different from the first slope device 100 is the second slope device 200 and the pedestal device 300, but this is not limited to this. For example, the type of device different from the first slope device 100 may be a device different from both the second slope device 200 and the pedestal device 300.

[0118] Furthermore, although the slope systems in the above-described embodiments have all been described as including the first slope device 100, this is not limiting. For example, the slope system may not include the first slope device 100, but may instead include one or more second slope devices 200 and one or more pedestal devices 300. In addition, in the above-described embodiment, the first slope device 100 and a device of a type different from the first slope device 100 are described as being adjustable to any height, but this is not limited to this. At least one of the first slope device 100 and a device of a type different from the first slope device 100 may be adjustable to a height in predetermined steps (for example, three steps), or may not be height adjustable and be used at a predetermined height. Furthermore, the above-described base device 300 has been described as having four support units 351a to 351d, but the present invention is not limited to this, and may have three or five or more support units. [Explanation of symbols]

[0119] 10: Slope system 100: First slope device 110: Slope section 150: Support section 200: Second slope device 210: Slope section 250: First support section 280: First support section 300: Base device 310: Grounded section 350: Support section

Claims

1. a first slope device; and a device of a different type from the first slope device.

2. a slope portion that is not continuous with the ground surface and is located apart from the ground surface in a height direction; a first support portion that is in contact with the ground surface and supports the slope portion so as to be adjustable in the height direction.

3. a grounded portion to which another slope device is grounded; a support portion that supports the grounded portion so as to be adjustable in height.

Images