Vehicle protective devices

Abstract

The objective is to effectively restrict the movement of the entire vehicle protection device, including connecting members. [Solution] A vehicle protective device 1 comprises a protective body 2 and a connecting member 4, wherein a plurality of protective bodies 2 are connected by the connecting member 4, and the protective body 2 comprises a wall portion 20 and a step portion 27 extending forward of the wall portion 20, and is formed so that the step portion 27 is positioned directly below the wheel of the vehicle that contacts the wall portion 20, and the protective body 2 is positioned above the connecting member 4 which is placed on the installation surface, and at least a part of the protective body 2 is placed on the connecting member 4.

Description

Technical Field

[0001] The present invention relates to a vehicle protection device for preventing the progress of a collided vehicle.

Background Art

[0002] On the road where a vehicle travels, vehicle entry may be temporarily restricted for construction work or accident response. To prevent a vehicle from entering such a restricted driving area, a pylon or the like is used. However, a pylon installed on the road has almost no ability to physically restrict the travel of a collided vehicle. For this reason, there is a demand for a protection device that can prevent the progress of a collided vehicle for the purpose of protecting workers in the restricted driving area, etc., and various inventions have been disclosed (see, for example, Patent Document 1).

[0003] In the vehicle protection device described in Patent Document 1, by connecting a plurality of protection bodies with connecting members, it is possible to prevent the travel of a vehicle even in a wide area. In such a vehicle protection device, there is a demand to be able to more effectively restrict the movement of the entire vehicle protection device including the connecting members.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention has been made in view of the above circumstances, and an object thereof is to effectively restrict the movement of the entire vehicle protection device including the connecting members.

Means for Solving the Problems

[0006] The present invention provides the following means for solving the above-mentioned problems. Specifically, the vehicle protective device according to the present invention comprises a protective body and a connecting member, wherein a plurality of protective bodies are connected by the connecting member, and the protective body comprises a wall portion and a step portion extending forward of the wall portion, and is formed such that the step portion is positioned directly below the wheel of the vehicle that contacts the wall portion, and the protective body is positioned above the connecting member which is placed on the installation surface, and at least a part of the protective body is placed on the connecting member.

[0007] According to the vehicle protection device of the present invention, when the vehicle makes contact with the wall while the wheels are pressing down on the tread portion, the movement of the protective body is restricted, and the vehicle's progress can be effectively obstructed. Furthermore, since multiple protective bodies are connected by connecting members, even when the area to be restricted by the vehicle is large, the connected protective bodies can be positioned along the perimeter to obstruct the vehicle's progress. Moreover, since the protective body is positioned above the connecting member that is placed on the installation surface, and at least a part of this protective body is placed on the connecting member, the force with which the wheels of the contacting vehicle press the connecting member against the installation surface, effectively restricting the movement of the entire vehicle protection device, including the connecting member.

[0008] Furthermore, it is preferable that the protective body is provided with an engaging portion that can engage with the connecting member, and that the engaging portion is formed so that it engages when the protective body moves from above to below. As a result, since the protective body is provided with an engaging portion that can engage with the connecting member, the engagement of the engaging portion makes it difficult for the protective body to detach from the connecting member, and the connection between each protective body is made difficult to release. In addition, by forming the protective body so that the engaging portion engages when it moves downward onto the connecting member, the upward movement of the protective body is restricted by the wheels of the vehicle that step on the stepping portion, making it difficult for the engagement of the engaging portion to be released.

[0009] Furthermore, it is preferable that the engaging portion of the protective body is formed to be able to engage with the connecting member from the rear side of the connecting member. By forming the protective body to be able to engage from the rear side of the connecting member, the installation work of the protective body can be performed on the side opposite to the front where the vehicle travels, thereby improving safety.

[0010] Furthermore, it is preferable that the engaging portion is formed at the lower part of the wall portion of the protective body, and that the connecting member with which the engaging portion engages is positioned directly below the wall portion. This ensures that when a vehicle with its wheels pressed against the tread portion comes into contact with the wall portion, a downward force is applied to the wall portion, restricting the upward movement of the protective body and making it difficult for the engaging portion to disengage. [Effects of the Invention]

[0011] According to the present invention, the movement of the entire vehicle protective device, including the connecting member, can be effectively restricted. [Brief explanation of the drawing]

[0012] [Figure 1] This is a perspective view showing a vehicle protective device according to an embodiment of the present invention. [Figure 2] This is a perspective view showing a vehicle protective device from a different angle than Figure 1. [Figure 3] This is a perspective view showing a protective element provided in a vehicle protection device. [Figure 4] This is a perspective view showing the protective device from a different angle than Figure 3. [Figure 5] This is a front view showing the protective device. [Figure 6] This is a rear view showing the protective device. [Figure 7] This is a side view showing the protective device. [Figure 8] This is a plan view showing the protective device. [Figure 9] This is a bottom view showing the protective device. [Figure 10] This is a perspective view showing a connecting member provided in a vehicle protective device. [Figure 11] It is a plan view showing a connecting member. [Figure 12] It is a plan view showing an example of an installation structure of a vehicle protection device. [Figure 13] It is a perspective view showing a protective body according to another embodiment. [Figure 14] It is a perspective view showing the protective body seen from a direction different from that of FIG. 13. [Figure 15] It is a front view showing the protective body. [Figure 16] It is a rear view showing the protective body. [Figure 17] It is a side view showing the protective body. [Figure 18] It is a plan view showing the protective body. [Figure 19] It is a bottom view showing the protective body. [Figure 20] It is a bottom view showing Modification Example 1 of the protective body. [Figure 21] It is a front view showing Modification Example 2 of the protective body. [Figure 22] It is a front view showing Modification Example 3 of the protective body.

Mode for Carrying Out the Invention

[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0014] FIGS. 1 and 2 are perspective views showing a vehicle protection device 1 according to an embodiment of the present invention. The vehicle protection device 1 includes a protective body 2 that obstructs the progress of the vehicle and a connecting member 4 that connects a plurality of the protective bodies 2. In the vehicle protection device 1 shown in FIGS. 1 and 2, five protective bodies 2 are connected by two connecting members 4. Each protective body 2 is provided with an engaging portion that can be engaged with the connecting member 4, and by engaging this engaging portion with the connecting member 4, each protective body 2 is connected to the connecting member 4. Further, by releasing the engagement between the engaging portion and the connecting member 4, each protective body 2 can be separated from the connecting member 4.

[0015] Figures 3 and 4 are perspective views showing the protective body 2 provided in the vehicle protection device 1, Figure 5 is a front view of the protective body 2, Figure 6 is a rear view of the protective body 2, Figure 7 is a side view of the protective body 2, Figure 8 is a top view of the protective body 2, and Figure 9 is a bottom view of the protective body 2. The protective body 2 comprises a base portion 26 that abuts the installation surface and a wall portion 20 that protrudes upward from the base portion 26. The wall portion 20 is formed to a size that allows contact with the vehicle's bumper and is provided to obstruct the progress of a colliding vehicle. The protective body 2 is formed by bending a single metal plate to form the foot portion 27 with the base portion 26 and the wall portion 20, specifically by bending a galvanized steel plate.

[0016] The protective body 2 is provided with the stepping portion 27 positioned on the front side. The stepping portion 27 is provided in a substantially rectangular flat plate shape. When a vehicle comes into contact with the protective body 2, the stepping portion 27 is positioned directly beneath the vehicle's wheels that come into contact with the wall portion 20. Specifically, the stepping portion 27 includes an inclined portion 27a that connects to the wall portion 20 and extends downward and forward, and a front end portion 27b that extends forward from the front end of the inclined portion 27a. The front end portion 27b of the stepping portion 27 is positioned substantially horizontally and functions as a base portion 26 that contacts the installation surface. The front end portion 27b occupies most of the stepping portion 27, and sufficient area of ​​the front end portion 27b is secured for contact with the installation surface.

[0017] Furthermore, the stepping portion 27 is provided with a rear end portion 27c that extends rearward from the rear end of the inclined portion 27a and is located below the wall portion 20. The rear end portion 27c is positioned approximately horizontally and functions as a mounting portion that rests on the upper surface of the connecting member 4. A roughly rectangular opening 27d is formed in the center of the width direction of the rear end portion 27c. The opening 27d is positioned to overlap with the engaging claw portion 41, openings 43 and 44 of the connecting member 4 when the protective body 2 is connected to the connecting member 4 and the rear end portion 27c of the stepping portion 27 is placed on the upper surface of the connecting member 4 (see Figures 1 and 2). Also, when the rear end portion 27c of the stepping portion 27 is placed on the upper surface of the connecting member 4, the engaging claw portion 41 and opening 44 of the connecting member 4 are visible through the opening 27d.

[0018] The wall portion 20, which protrudes upward from the base portion 26, comprises a contact portion 21, a support portion 22, and an upper plate portion 23. The contact portion 21 is formed in a substantially rectangular flat plate shape and extends upward from the rear end of the inclined portion 27a of the stepping portion 27. The contact portion 21 is positioned substantially perpendicular to the installation surface and is formed to constitute the front surface of the wall portion 20. Two substantially rectangular through holes 21a, which penetrate in the front-to-back direction, are formed side by side in the contact portion 21, reducing the wind load on the contact portion 21. The four sides surrounding the upper through hole 21a are bent substantially perpendicular to the front surface of the wall portion 20, and the three sides surrounding the lower through hole 21a are bent substantially perpendicular to the front surface of the wall portion 20, thereby improving the rigidity of the edges of each through hole 21a and ensuring a large opening area for each through hole 21a.

[0019] The upper plate portion 23 is formed in a substantially rectangular flat shape and extends substantially vertically to the rear from the upper end of the contact portion 21. The upper plate portion 23 is provided so as to constitute the upper surface of the wall portion 20. Two substantially U-shaped handle portions 23b are attached to the upper plate portion 23 at predetermined intervals in the width direction, making it possible to easily move the protective body 2 using the handle portions 23b. Specifically, the handle portions 23b are inserted into openings 23a formed in the upper plate portion 23 so as to be movable in the vertical direction. Furthermore, when the handle portions 23b are moved upward, nuts 23c (see Figure 6) are tightened on the lower ends of the handle portions 23b to prevent them from coming loose from the upper plate portion 23.

[0020] The support portion 22 is formed in a substantially trapezoidal flat plate shape and extends substantially vertically to the rear from both ends in the width direction of the contact portion 21. Each support portion 22 is provided so as to constitute the side surface of the wall portion 20. A projection 22a is formed at the lower end of each support portion 22 as an engagement portion with the connecting member 4. The projection 22a is formed to a size that allows it to be inserted into the opening 43 of the connecting member 4 from above. A contact portion 22b is formed on the rear side of the projection 22a. The lower end of the contact portion 22b is located below the lower end of the projection 22a, and when the rear end portion 27c of the stepping portion 27 is placed on the upper surface of the connecting member 4 (see Figures 1 and 2), the contact portion 22b contacts the installation surface.

[0021] Furthermore, an opening 22c is formed at the upper end of each support portion 22. The upper end of the opening 22c is circular, allowing a bolt 22d (see Figure 2) to be inserted. The bolt 22d is inserted into each opening 22c of the support portion 22 of two adjacent protective bodies 2 in the width direction, and by tightening the nuts, the adjacent protective bodies 2 in the width direction are connected to each other. The lower part of the opening 22c is narrower in the front-to-back direction than the upper end, and is formed to be approximately the same width as the outer diameter of the bolt 22d. This restricts the movement of the bolt 22d in the front-to-back direction within the opening 22c, and restricts the movement of adjacent protective bodies 2 in the front-to-back direction in the width direction.

[0022] Each support portion 22 has a roughly rectangular, flat support base 28 connected to its lower end. Each support base 28 extends roughly vertically inward in the width direction from the lower end of the support portion 22. Each support base 28 is positioned so that its lower surface rests on the upper surface of the connecting member 4, and is positioned on the same plane as the lower surface of the rear end 27c of the stepping portion 27 described above. The support base 28 functions as a mounting portion that rests on the upper surface of the connecting member 4, similar to the rear end 27c of the stepping portion 27. The upper end of each support portion 22 is joined to the upper plate portion 23 by bending or welding.

[0023] Figure 10 is a perspective view showing a connecting member 4 provided in the vehicle protection device 1, and Figure 11 is a plan view of the connecting member 4. The connecting member 4 is a long body with a rectangular cross-section and is formed from a square steel pipe. Multiple protective bodies 2 can be connected to the connecting member 4, and in this embodiment, four protective bodies 2 can be connected. The protective bodies 2 located on both sides in the width direction are arranged to span across two connecting members 4 that are continuous in the width direction.

[0024] Multiple connecting members 4 can be connected together. As shown in Figures 1 and 2, when two connecting members 4 are connected, five protective bodies 2 can be connected to the connecting member 4. When three connecting members 4 are connected, seven protective bodies 2 can be connected to the connecting member 4. In other words, in this embodiment, when n connecting members 4 (where n is an integer) are connected, [2n+1] protective bodies 2 can be connected to the connecting member 4.

[0025] As shown in Figures 1, 2, 10, and 11, an engaging claw portion 41 is formed at one end of the connecting member 4 in the width direction, and an engaging hole 42 is formed at the other end in the width direction, into which the engaging claw portion 41 of an adjacent connecting member 4 can engage (be inserted). A substantially rectangular opening 43 is formed on the upper surface of the connecting member 4, penetrating into the inner hollow portion. Three openings 43 are provided at predetermined intervals in the width direction. The protruding portion 22a of the support portion 22 of the protective body 2 can be inserted into the openings 43. The distance between two adjacent openings 43 is approximately the same as the width of the protective body 2. Furthermore, when multiple connecting members 4 are connected, the distance between openings 43 that span two adjacent connecting members 4 is also approximately the same as the width of the protective body 2.

[0026] Furthermore, two approximately semicircular openings 44 are formed on the upper surface of the connecting member 4, spaced at a predetermined interval in the width direction. The openings 44 allow the connecting member 4 to be easily moved. The upper surface of the connecting member 4 serves as a mounting surface for the protective body 2, which is positioned above it. Specifically, the rear end portion 27c of the stepping portion 27 and the support base 28 of the protective body 2 are placed on the upper surface of the connecting member 4.

[0027] To connect the protective body 2 to the connecting member 4, the required number of connecting members 4 are connected in a straight line, and the protruding portion 22a of the protective body 2 is inserted into the opening 43 of the connecting member 4. Then, the support portions 22 of two adjacent protective bodies 2 are fastened together with bolts 22d. At this time, as shown in Figures 1 and 2, the opening 43 is designed so that the protruding portion 22a of the protective body 2 engages with the opening 43 when the protective body 2 moves from above to below, for example, when the protective body 2 is lowered onto the connecting member 4. The opening 43 is formed to a size that allows both protruding portions 22a of two adjacent protective bodies 2 to be inserted. The width of the opening 43 is approximately twice the width of the protruding portion 22a of the protective body 2. The protrusions 22a of two adjacent protective bodies 2 engage with a single opening 43, and the support parts 22 of the two adjacent protective bodies 2 are fastened with bolts 22d, thereby firmly connecting the two adjacent protective bodies 2 and restricting their movement in the width direction. Furthermore, the size of the opening 43 in the front-rear direction is approximately the same as the size of the protrusions 22a of the protective bodies 2 in the front-rear direction, restricting the movement of the protrusions 22a in the front-rear direction within the opening 43, and thus restricting the movement of the protective bodies 2 in the front-rear direction. In this way, when the protective bodies 2 are connected to the connecting member 4, their movement in the width direction and front-rear direction is restricted, and only upward movement of the protective bodies 2 is possible.

[0028] In this embodiment, as described above, the footing portion 27 is positioned directly beneath the vehicle's wheels that contact the wall portion 20 of the protective body 2. The protective body 2 is positioned above the connecting member 4 which is placed on the installation surface, and at least a portion of the protective body 2 rests on the connecting member 4. As a result, when the vehicle contacts the wall portion 20 with the wheels pressing down on the footing portion 27, the movement of the protective body 2 is restricted, effectively hindering the vehicle's progress. Furthermore, since multiple protective bodies 2 are connected by the connecting member 4, even when the area to be restricted is large, the connected protective bodies 2 can be positioned along the perimeter to hinder the vehicle's progress. Moreover, since the protective body 2 is positioned above the connecting member 4 which is placed on the installation surface, and at least a portion of the protective body 2 rests on the connecting member 4, the force with which the contacting vehicle's wheels press down on the footing portion 27 presses the connecting member 4 against the installation surface, effectively restricting the movement of the entire vehicle protective device 1, including the connecting member 4.

[0029] When a vehicle makes contact with the wall portion 20 of the protective body 2, the front end portion 27b of the stepping portion 27 is mainly stepped on by the wheel. However, depending on the vehicle's contact with the protective body 2, the inclined portion 27a or the rear end portion 27c may be directly stepped on by the wheel. When the inclined portion 27a is stepped on by the wheel, there is a gap between the inclined portion 27a and the mounting surface, so the stepping portion 27 can press the connecting member 4 to the mounting surface with a stronger force via the rear end portion 27c compared to when only the front end portion 27b is stepped on. Furthermore, the wheel riding up onto the inclined portion 27a can direct the vehicle's direction of travel forward. Also, when the rear end portion 27c is stepped on by the wheel, the rear end portion 27c rests on the connecting member 4, so the stepping portion 27 can press the connecting member 4 to the mounting surface with an even stronger force.

[0030] Furthermore, since the protective body 2 is equipped with a projection 22a that can engage with the connecting member 4, the engagement of the projection 22a makes it difficult for the protective body 2 to detach from the connecting member 4, and makes it difficult for the connection of each protective body 2 to be released. In addition, since the protective body 2 is formed to engage when it is moved downward onto the connecting member 4, the upward movement of the protective body 2 is restricted by the wheels of the vehicle that step on the stepping portion 27, making it difficult for the engagement of the projection 22a to be released.

[0031] Furthermore, since the protruding portion 22a of the protective body 2 is formed to be able to engage with the connecting member 4 from the rear side of the connecting member 4, the installation work of the protective body 2 can be performed on the side opposite to the front where the vehicle is traveling, thereby improving safety.

[0032] Furthermore, the protruding portion 22a is formed at the lower part of the wall portion 20 of the protective body 2, and the connecting member 4, which engages with the protruding portion 22a, is positioned directly below the wall portion 20. As a result, when a vehicle with its wheels pressed against the tread portion 27 comes into contact with the wall portion 20, a downward force is applied to the wall portion 20, restricting the upward movement of the protective body 2 and making it difficult for the engagement of the protruding portion 22a to be released.

[0033] Figure 12 is a plan view showing an example of the installation structure of the vehicle protection device 1. Figure 12 shows a situation on a two-lane road in one direction where vehicles travel from the bottom to the top in the figure, where a restricted area N is set up in the left lane R1, and three vehicle protection devices 1A to 1C are installed around this restricted area N. Each vehicle protection device 1A to 1C is the same as the vehicle protection device 1 shown in Figures 1 and 2, and multiple protective bodies 2 shown in Figures 3 to 9 are connected by connecting members 4 shown in Figures 10 and 11. In each of the vehicle protection devices 1A to 1C, vehicle protection device 1A is positioned at the front of the vehicle in the direction of travel, and vehicle protection devices 1B and 1C are positioned sequentially towards the front. Vehicle protection devices 1A and 1B are not provided with a continuous connecting member 4, but are provided separately. Furthermore, the vehicle protection devices 1B and 1C do not have a continuous connecting member 4, but rather the members are provided separately. Note that in the vehicle protection devices 1A and 1C shown in Figure 12, some of the protective bodies 2 are not shown.

[0034] The vehicle protection devices 1A to 1C shown in Figure 12 are installed to prevent vehicles from entering the restricted area N. Specifically, the vehicle protection devices 1A and 1B, installed on the approach side of the restricted area N, are designed to encourage drivers of vehicles traveling in the left lane R1 to change lanes to the right lane R2 by arranging their connected protective bodies 2 inclined in a plan view relative to the direction of vehicle travel. In addition, the vehicle protection device 1C, located between the restricted area N and the right lane R2, is designed to prevent vehicles traveling in the right lane R2 from entering the restricted area N by arranging their connected protective bodies 2 along the direction of vehicle travel.

[0035] Each vehicle protection device 1A to 1C is designed to obstruct the progress of a vehicle that collides with it, thereby preventing it from entering the restricted area N, by positioning the stepping portion 27 and contact portion 21 of each protective body 2 so that the collision is predicted to occur from the lower side in the diagram to the right side in the diagram. Vehicle protection devices 1A and 1B are designed so that when a vehicle traveling in the left lane R1 collides with a protective body 2, the colliding protective body 2 obstructs the vehicle's progress and directs it toward the right side in the diagram, causing it to continuously collide with each protective body 2 positioned ahead in the direction of vehicle travel, thereby effectively preventing the vehicle from entering the restricted area N. Furthermore, the vehicle protection device 1C is designed to effectively prevent a vehicle from entering the restricted area N when a vehicle traveling in the right lane R2 collides with the protective body 2 from an oblique direction towards the left. The impact of the protective body 2 obstructs the vehicle's progress and encourages it to move towards the right in the diagram, causing it to continuously collide with each protective body 2 positioned ahead in the vehicle's direction of travel.

[0036] In each vehicle protection device 1A to 1C, depending on the direction of the colliding vehicle, it is conceivable that the vehicle may come into contact with a protective body 2 other than the protective body 2 whose tread portion 27 is being pressed down by the wheels. Even if the vehicle comes into contact with a protective body 2 in this way, the connection between the tread portion 27 and the protective body 2 that is being pressed down by the wheels restricts the movement of the protective body 2 that the vehicle has come into contact with, and is expected to have the effect of hindering the progress of the vehicle that made contact.

[0037] (Other embodiments) Referring to Figures 13 to 19, the protective body 2 according to another embodiment will be described. Figures 13 and 14 are perspective views showing the protective body 2 according to another embodiment, Figure 15 is a front view of the protective body 2, Figure 16 is a rear view of the protective body 2, Figure 17 is a side view of the protective body 2, Figure 18 is a top view of the protective body 2, and Figure 19 is a bottom view of the protective body 2. For convenience, in this embodiment (other embodiment), components common to the protective body 2 of the above embodiment (see Figures 3 to 9) are denoted by the same reference numerals and their descriptions are omitted. Also, in this embodiment, the effects and advantages resulting from the common components are the same as those of the protective body 2 of the above embodiment and are therefore omitted from the description. Below, the protective body 2 according to this embodiment will mainly be described in terms of its components that differ from the protective body 2 of the above embodiment.

[0038] In the above embodiment, the stepping portion 27 was provided with an inclined portion 27a and a rear end portion 27c, but in this embodiment, the stepping portion 27 is not provided with an inclined portion 27a and a rear end portion 27c. Also, in the above embodiment, the lower end of each support portion 22 was provided with a protruding portion 22a and a contact portion 22b, but in this embodiment, the lower end of each support portion 22 is provided with only a protruding portion 22a, and the contact portion 22b is not provided. Furthermore, unlike the above embodiment, in this embodiment, the opening 22c provided at the upper end of each support portion 22 is a circular through hole.

[0039] In this embodiment, the stepping portion 27 extends to the lower end of the wall portion 20 (contact portion 21), and the rear end of the stepping portion 27 is connected to the lower end of the wall portion 20 at an angle approximately perpendicular to it. When the protective body 2 is attached to the connecting member 4, there is no gap between the stepping portion 27 and the installation surface. By eliminating the inclined portion 27a that would create a gap between the protective body and the installation surface, the stepping portion 27 comes into contact with the front surface of the connecting member 4. As a result, when a vehicle makes contact, the force from the front is transmitted directly from the stepping portion 27 to the front surface of the connecting member 4, so that the connecting member 4 can effectively hinder the progress of the colliding vehicle.

[0040] In addition, since no gap is created between the foot-operated portion 27 and the installation surface, when the wheel steps on the foot-operated portion 27, the movement of the protective body 2 due to deformation of the foot-operated portion 27 (a floating movement) can be suppressed, and the detachment of the protective body 2 from the connecting member 4 can be suppressed.

[0041] Furthermore, in the above embodiment, three or four sides surrounding the substantially rectangular through hole 21a provided in the contact portion 21 were formed by bending them substantially perpendicular to the front surface of the wall portion 20. However, in this embodiment, the entire circumference of the edge portion of the through hole 21a of the contact portion 21 is bent backward by drawing. In this way, the edge portion extending backward is formed around the entire circumference of the through hole 21a, which improves the rigidity of the contact portion 21.

[0042] Furthermore, the vehicle protection device 1 according to the present invention is not limited to the above-described embodiment and other embodiments, and various modifications are possible without departing from the spirit of the present invention.

[0043] For example, the number of protective bodies 2 connected to the connecting member 4 is not particularly limited, and three or more protective bodies 2 may be connected to the connecting member 4, excluding the protective bodies 2 at both ends of the connecting member 4. In this case, if m connecting members 4 (where m is an integer) are connected, [3m+1] protective bodies 2 can be connected to the connecting member 4.

[0044] Figure 20 is a bottom view showing a modified example 1 of the protective body 2. As shown in Figure 20, a member with a high coefficient of friction with the installation surface, such as a rubber plate 29, may be attached to the back side of the stepping portion 27 of the protective body 2. When a vehicle collides with the wall portion 20, the rubber plate 29 can increase the frictional force generated between the stepping portion 27 and the installation surface when the vehicle's wheels step on the stepping portion 27, effectively restricting the movement of the protective body 2 and effectively hindering the progress of the vehicle.

[0045] Figure 21 is a front view showing a modified example 2 of the protective body 2. In the other embodiments described above, the entire circumference of the edges of the upper and lower through holes 21a of the contact portion 21 of the protective body 2 was extended backward by drawing. However, in the modified example 2 of Figure 21, the four sides surrounding the roughly rectangular upper and lower through holes 21a are bent almost vertically backward, and reinforcing plates are attached to each of the four corners. The upper and lower through holes 21a are formed in an approximately octagonal shape. The reinforcing plates can be fixed to the contact portion 21, for example, by welding.

[0046] Figure 22 is a front view showing a modified example 3 of the protective body 2. In modified example 3 of Figure 22, of the upper and lower through holes 21a of the contact portion 21 of the protective body 2, the lower through hole 21a is made up of multiple through holes formed by, for example, punching. Note that both the upper and lower through holes 21a may be made up of multiple through holes, or only the upper through hole 21a may be made up of multiple through holes.

[0047] In the above, through holes 21a were formed above and below the contact portion 21 of the protective body 2. However, the protective body 2 may also be configured without through holes 21a in the contact portion 21. In this case, it is possible to omit both the upper and lower through holes 21a, or to omit only one of the upper or lower through holes 21a. [Explanation of Symbols]

[0048] 1. Vehicle protective devices 2 Protective body 20 Wall 21 Contact area 22 Support part 22a Projection part (engaging part) 27 Treading section 27c Rear end 28 Support base 4 Connecting members

Claims

1. A vehicle protective device comprising a protective body and a connecting member, wherein a plurality of the protective bodies are connected by the connecting member, The protective body comprises a wall portion and a step portion extending forward of the wall portion, and is formed so that the step portion is positioned directly beneath the wheel of the vehicle that contacts the wall portion. A vehicle protective device characterized in that the protective body is positioned above the connecting member which is placed on the mounting surface, and at least a portion of the protective body is placed on the connecting member.

2. In the vehicle protection device according to claim 1, A vehicle protective device characterized in that the protective body has an engaging portion that can engage with the connecting member, and the engaging portion is formed to engage when the protective body moves from above to below.

3. In the vehicle protection device according to claim 2, A vehicle protective device characterized in that the engaging portion of the protective body is formed to be able to engage with the connecting member from the rear side of the connecting member.

4. In the vehicle protection device according to claim 2, A vehicle protective device characterized in that the engaging portion is formed at the lower part of the wall portion of the protective body, and the connecting member with which the engaging portion engages is positioned directly below the wall portion.

Images