Vehicle entry suppression device

Abstract

The objective is to provide a vehicle intrusion prevention device that is small enough and light enough to be transported by one person without the use of tools or carts, while being able to deter the intrusion of vehicles ranging from regular cars to large vehicles. [Solution] The device comprises a base member 2 installed on the road surface and a steel plate connecting member 3 consisting of two steel plates 20 and 21 whose tops are rotatably connected. The base member 2 has mounting means 5 on its upper surface for attaching the steel plate connecting member 3, and friction means 45 on its bottom surface for generating frictional force with the road surface. The top of the steel plate connecting member 3 attached to the base member 2 is formed to be lower at the front and increase in height towards the rear, and the bottom of the two steel plates 20 and 21 are provided with mounting parts 26 and 27 that are attached to the mounting means 5 of the base member 2. This configuration makes it possible to provide a vehicle intrusion prevention device that can be transported by a single worker.

Description

Technical Field

[0001] The present invention is a device that suppresses accidental or intentional intrusion of a vehicle when a prohibited entry area for the vehicle is provided, or in a road maintenance work (road construction) area on a general road or a highway.

Background Art

[0002] There is a vehicle forced stop device in Patent Document 1 as a device that stops the progress of a vehicle attempting to enter a restricted area. The device relates to a vehicle stop device that stops the progress of a vehicle even when the vehicle collides with the vehicle stop device in an offset state. The device had a base frame with a relatively large area and provided a stop bar having two arm-shaped operating parts integrally with the base frame. When the device was configured to be applicable from a passenger car to a large truck, a certain size and weight were required.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] As described above, since the conventional vehicle forced stop device requires a predetermined size and non-destructible strength, it was common to configure the device by using a large amount of heavy and strong steel materials. Therefore, there was a problem that the size and weight exceeded the extent that could be easily carried by one person manually. The present invention has been invented in view of the above circumstances, and an object thereof is to provide a vehicle intrusion suppression device that has a size and weight that can be carried by one person without using tools or a trolley, and suppresses intrusion of vehicles corresponding from ordinary cars to large cars. [Means for solving the problem]

[0005] This invention was made in view of the above problems, A base member installed on the road surface, It has a steel plate connecting member consisting of two steel plates whose tops are rotatably connected, The base member has mounting means for attaching the steel plate connecting member to its upper surface, and friction means for generating frictional force between itself and the road surface on its lower surface. A vehicle intrusion suppression device characterized in that the top of the steel plate connecting member attached to the base member is formed to be lower at the front and increasing in height towards the rear, and the bottom of the two steel plates is provided with a mounting portion that is attached to the mounting means of the base member.

[0006] Furthermore, in the above-mentioned vehicle intrusion suppression device, The aforementioned steel plate connecting member has a notch formed by cutting out a wedge-shaped portion of the steel plate, including the top portion, The mounting portion is provided only in the area forward of the notch.

[0007] Furthermore, in the above-mentioned vehicle intrusion suppression device, The mounting portion is a narrow folded edge formed by bending the bottom edges of the two steel plates outwards. The mounting means is a bent piece formed by bending a part of the base member, and is configured to hold the bent edge of the part to be mounted, which is inserted forward. [Effects of the Invention]

[0008] This vehicle intrusion prevention device consists of a base member installed on the road surface and a steel plate connecting member made of two steel plates that are detachably attached to the base member. Both members have a form, structure, and weight that allows them to be carried by a single person. Despite its excellent portability, this vehicle intrusion prevention device can be applied to vehicles ranging from ordinary passenger cars to large vehicles such as trucks. Furthermore, by arranging multiple units side by side, an entire lane can be blocked, and when multiple vehicle intrusion prevention devices are connected using a wire rope, the entire connected vehicle intrusion prevention device can be wrapped around a vehicle, thereby enhancing the braking effect. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of the device according to this embodiment, as seen from the front, right side, and top. [Figure 2] This is a perspective view of the device according to this embodiment, as seen from the rear, top, and left side. [Figure 3] This is an overall diagram of the device showing the base member and steel plate connecting member before joining. [Figure 4] This is an explanatory diagram showing workers transporting the base components and folded steel plate connecting components. [Figure 5] This is an explanatory diagram showing the base member with the unfolded steel plate connecting member attached. [Figure 6] This is an explanatory diagram showing how the fixing mechanism is raised and pressed against the inner surface of the expanded steel plate connecting member. [Figure 7] This is an explanatory diagram showing the state just before a truck collides with four devices arranged side by side. [Figure 8] This is an explanatory diagram showing the state immediately after a truck collides with four devices arranged side by side. [Figure 9] This is a perspective view showing the bottom of the device. [Figure 10] This shows the device connected by a wire, with one end fixed to a guardrail post. [Modes for carrying out the invention]

[0010] The embodiments for carrying out the present invention will be described below with reference to the drawings. Figure 1 is a perspective view of the vehicle intrusion suppression device (hereinafter referred to as "device") 1 according to this embodiment, as seen from the front, right side, and top view, and Figure 2 is a perspective view of the device 1 as seen from the rear, top view, and left side. The main components of the device 1 are a base member 2 and a steel plate connecting member 3. The device 1 is installed on the road surface and is intended to suppress and stop the progress of vehicles attempting to enter a vehicle intrusion restriction area.

[0011] The base member 2 is made of steel plate and has a rectangular flat portion 4, with mounting means 5 provided on the upper surface of the flat portion 4 for attaching the steel plate connecting member 3. The front edge of the rectangular flat section 4 is provided with a bent piece 10, which is formed by bending the front edge upward and then bending it horizontally. The horizontal portion 11 of the bent piece has multiple (two in this example) elongated holes 12 along its longitudinal direction. The left and right side edges of the flat section 4 are provided with side pieces 13 and 14, respectively, which are formed by bending the side edges upward. The side pieces 13 and 14 have multiple (three in this example) elongated holes 15 along their longitudinal direction. The bent piece 10 and the side pieces 13 and 14 serve to increase the strength of the base member 2 by reinforcing the periphery of the flat section 4. The elongated holes 12 and 15 are used as means for connecting or housing devices 1 together and for attaching wires and jigs.

[0012] In this embodiment, the rear edge 16 of the rectangular flat section 4 does not have a bent portion. This is primarily to avoid interfering with the installation of the steel plate connecting member 3. However, it is permissible to provide a bent portion on the rear edge 16 to the extent that it does not hinder installation. In addition, the flat portion 4 is provided with fixing means 17 that abuts against the inner surface of the attached steel plate connecting member 3. The fixing means 17 is intended to prevent the attached steel plate connecting member 3 from detaching and to prevent deformation due to external forces. The fixing means 17 in the present embodiment is formed as a plate-shaped member connected to the flat portion 4 by a hinge 18, and is configured to fit in a state where the outer peripheral portion abuts against the inner surface of the steel plate connecting member 3. When the fixing means 17 fits into the inner surface of the steel plate connecting member 3, it has the effect of preventing the steel plate connecting member 3 from moving backward and preventing deformation due to external forces by the effect of supporting from the inside. Note that the specific form of the fixing means 17 is not limited to this example as long as the same operational effects are produced.

[0013] The steel plate connecting member 3 is a member in which two steel plates 20 and 21 cut and bent into a predetermined shape are connected by hinges 22 and 23 so as to be deployable. The steel plates 20 and 21 each have an outer shape that is a similar shape of a substantially triangular shape, and are attached to the base member 2 in a state of being unfolded downward in a mountain shape with the portions connected by the hinges 22 and 23 as the vertices. The steel plates 20 and 21 are provided with wedge-shaped cutout portions 24 and 25 in which a part of the upper edge constituting the vertex is cut out downward in a wedge shape. In addition, attached portions 26 and 27 to be attached to the attaching means 5 of the base member 2 are formed at the lower edge, which is the hem of the lower edge.

[0014] In addition, the rear portions 28 and 29 behind the wedge-shaped cutout portions 24 and 25 of the steel plates 20 and 21 are portions where the attached portions 26 and 27 are not provided at the lower edge, and are arranged at positions protruding beyond the rear edge 16 of the base member 2. Further, triangular convex portions 30 and 31 are continuously provided at the rear edge of the rear portions 28 and 29 by cutting in a zigzag manner. The convex portions 30 and 31 constitute anti-slip means for the vehicle intended to maintain the engagement state with the contacted vehicle. When the convex portions 30 and 31 are pressed with a large force after engaging with the vehicle, the steel plates 20 and 21 are deformed so that the rear portions 28 and 29 move into the space formed as the wedge-shaped cutout portions 24 and 25. As an example, elongated holes 19 are provided on the sides of the steel plates 20 and 21. The elongated holes 19 are holes that can be used to connect multiple units of the device 1 by inserting a wire through them.

[0015] Figure 3 is an overall view of the device 1 showing the base member 2 and the steel plate connecting member 3 before joining. The mounting means 5 provided on the base member 2 is formed by a plurality of mounting bodies 35 arranged along two directions. The mounting bodies 35 are arranged along two directions: along the mounting portion 26 of the unfolded steel plate connecting member 3 and along the mounting portion 27, with the distance between them narrowing as they move forward. The mounting body 35 has a bent portion 36 that is bent while remaining connected to the flat portion 4, and an upright piece 37 that has a rectangular outer shape with three sides separated from the flat portion 4. The upright piece 37 is provided with a gap 38 between it and the flat portion 4 that is large enough to hold the steel plate used in the steel plate connecting member 3. The gap 38 is formed to hold the mounting portions 26 and 27, which are narrow bent pieces formed by bending the lower edge of the steel plate connecting member 3.

[0016] The steel plate connecting member 3, when unfolded and attached to the base member 2, has a shape resembling a triangular pyramid with its front side as the apex and its three faces converging. Specifically, by inserting the attached portions 26 and 27 of the unfolded steel plate connecting member 3 into the mounting body 35 from the rear, the triangular pyramidal shape of the steel plate connecting member 3 is determined, and the structure becomes stable.

[0017] The base member 2 is provided with a fixing means 17 for the steel plate connecting member 3. The fixing means 17 is a steel plate member whose lower edge is hinged to the base member 2, and is capable of rotating from a folded state where it is almost in contact with the surface of the base member 2 to an upright state. When the fixing means 17 is raised after the steel plate connecting member 3 is attached to the base member 2, it comes into close contact with the inner surface of the steel plate connecting member 3, whose outer edge is shaped like a triangular pyramid, and the fixing means 17 is fitted into place. When the fixing means 17 is fitted into the inner surface of the steel plate connecting member 3, it presses from the inside in an opening direction, causing the attached parts 26 and 27 to fit tightly against the mounting body 35.

[0018] The fixing means 17 has the effect of preventing the steel plate connecting member 3 from moving backward, and also has the effect of supporting the steel plates 20 and 21 from the inside, thereby increasing their strength against deformation in response to loads received from the outside. The steel plates 20 and 21 have wedge-shaped notches 24 and 25, but the fixing means 17 is attached in a position close to the wedge-shaped notches 24 and 25, and in a portion in front of the wedge-shaped notches 24 and 25.

[0019] The wedge-shaped notches 24 and 25 are triangular-shaped spaces cut out with the deepest corner 40 as the apex of a narrow angle. By providing these wedge-shaped notches 24 and 25, a weak area 41 is formed near the corner 40 of the steel plates 20 and 21, which have a triangular outer shape, with a narrow width between it and the bottom edge. The weak area 41 is the part that deforms when a vehicle strongly collides with the triangular protrusions 30 and 31 provided on the rear edge of the steel plates 20 and 21, and it is the part that deforms the rear 28 and 29 according to the contact angle with the vehicle to absorb the impact.

[0020] Figures 4, 5, and 6 are illustrations showing the installation image of device 1. Figure 4 shows a worker transporting the base member 2 and the folded steel plate connecting member 3. As shown in the figure, the device 1, which consists of the base member 2 and the folded steel plate connecting member 3, is designed to be small and light enough for one worker to carry. Figure 5 shows the state in which the unfolded steel plate connecting member 3 is attached to the base member 2. The attachment of the steel plate connecting member 3 to the base member 2 is shown by opening the bottom around the hinge and inserting the mounting portions 26 and 27 at the lower edge into the mounting body 35. Since the multiple mounting bodies 35 are arranged in a tapering manner, once the mounting portions 26 and 27 are inserted into all of the mounting bodies 35, it is no longer possible to push them forward any further. Figure 6 shows the state after pushing in the steel plate connecting member 3 using the operation shown in Figure 5, and then raising the fixing means 17 and pressing it against the inner surface of the unfolded steel plate connecting member 3 to secure it. With these operations, the basic installation of the device 1 is completed.

[0021] Figure 7(a) is a plan view showing four devices 1 (1a, 1b, 1c, 1d) arranged side by side, connected by passing wires 43 through the elongated holes 19 in the base member 2 and the elongated holes 19 in the steel plates 20 and 21 of the steel plate connecting members 3. It also shows the state just before the truck T collides with the steel plate connecting members 3 of the arranged devices 1. Figure 7(b) is a side view showing the state shown in Figure 7(a). Device 1 is approximately 600 mm tall, exceeding the height from the road surface to the bottom of the truck, and engages with the underside of the vehicle in the event of a collision. Furthermore, Device 1 is approximately 900 mm wide, and by connecting four of them, it can be formed to approximately 3600 mm wide, equivalent to the width of one lane on a highway.

[0022] Figure 8(a) is a plan view showing the state immediately after truck T collides with four devices 1 (1a, 1b, 1c, 1d) arranged side by side, and Figure 8(b) is a simplified side view of the same state. When a truck T collides with the center of the four devices 1 (1a, 1b, 1c, 1d) positioned around it, the four devices 1 surround the front of the truck T, with the protrusions 30 and 31 biting into the bottom of the truck T. At this time, the vulnerable part 41 of the device 1 that comes into contact with the truck T deforms, and the rear parts 28 and 29 tilt forward to close the wedge-shaped notches 24 and 25. When the rear parts 28 and 29 tilt forward, the angle of inclination of the rear edges where the triangular protrusions 30 and 31 are located becomes shallower, allowing them to bite more deeply into the bottom of the truck T and create a braking effect without coming loose.

[0023] Figure 9 is a perspective view showing the bottom of device 1. A rubber sheet is attached to the bottom surface of device 1. The rubber sheet 45 has a V-shaped cutout 46 that tapers from the center of the rear towards the front. The rubber sheet 45 is a friction member that generates a strong frictional force between itself and the road surface when a vehicle bites into device 1, and generates a frictional force corresponding to the vertical load generated from the vehicle toward the bottom surface. The load received from the vehicle is transmitted to the base member 2 via the lower edges of the steel plates 20 and 21 of the steel plate connecting member 3. Since the base member 2 flexes slightly under load, the area on the back of the part where the lower edges of the steel plates 20 and 21 are in contact becomes the region that generates the strongest frictional force. For this reason, in this embodiment, a rubber plate 45 is placed on the back of the base member 2 corresponding to the lower edges of the steel plates 20 and 21, and a V-shaped cutout 46 is provided in the area where the load from the vehicle is small, thereby reducing the weight of the device.

[0024] Device 1 can be installed in multiples side-by-side to broadly block the path of a vehicle. Furthermore, by connecting multiple installed devices 1 with wires, it can be used to stop a moving vehicle by entangling the devices that were not directly in front of it. Device 1 can be connected to other devices as shown in Figures 7 and 8, or one end of the wire connecting the devices may be fixed to a fixed object such as a guardrail post H, as shown in Figure 10.

[0025] The embodiments of the present invention have been described above, but these are merely examples and are not intended to limit the invention as described in the claims. Furthermore, each of the examples and technical elements described can be used in appropriate combinations, omissions, substitutions, modifications, and additions without departing from the invention as described in the claims, and these are also described herein and fall within the technical scope of the present invention. [Industrial applicability]

[0026] This invention can be used in a vehicle forced-stop device that forcibly stops a vehicle attempting to enter a restricted area. [Explanation of Symbols]

[0027] 1 (1a, 1b, 1c, 1d) Vehicle intrusion prevention device (device) 2 Base member 3 Steel plate connecting member 4 Plane part 5 Attachment means 10 bent piece 11 Horizontal part 12 long hole 13, 14 side piece 15 long hole 16 Posterior edge 17 Fixing means 18 Hinge 19 long hole 20, 21 Steel plate 22, 23 hinges 24, 25 Wedge-shaped notches 26, 27 Attached part 28, 29 Rear 30, 31 Convex part 35. Wearable body 36 Bend section 37 Standing piece 38 gaps 40 corners 41 Vulnerable parts 43 Wire 45 Rubber sheet 46 Cutout section

Claims

1. A base member installed on the road surface, It has a steel plate connecting member consisting of two steel plates whose tops are rotatably connected, The base member has mounting means for attaching the steel plate connecting member to its upper surface, and friction means for generating frictional force between itself and the road surface on its lower surface. A vehicle intrusion suppression device characterized in that the top of the steel plate connecting member attached to the base member is formed to be lower at the front and increasing in height towards the rear, and the bottom of the two steel plates is provided with a mounting portion that is attached to the mounting means of the base member.

2. The aforementioned steel plate connecting member has a notch formed by cutting out a wedge-shaped portion of the steel plate, including the top portion, The vehicle intrusion suppression device according to claim 1, characterized in that the mounting portion is provided only in the area in front of the notch.

3. The mounting portion is a narrow folded edge formed by bending the bottom edges of the two steel plates outwards. The vehicle intrusion suppression device according to claim 1 or 2, characterized in that the mounting means is a bent piece obtained by bending a part of the base member, and is configured to hold the bent edge of the part to be mounted which is inserted toward the front.

Images