Reverse vehicle running prevention device
A movable step with a lock and spring system addresses the ineffectiveness of existing signs by physically preventing wrong-way driving, ensuring safety by acting as an obstacle only when reversed.
Patent Information
- Application Number
- JP2025001659U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2025-10-07
- Estimated Expiration
- 2035-05-07
AI Technical Summary
Existing measures to prevent wrong-way driving on roads, such as signs, are ineffective in physically stopping vehicles from entering the wrong direction.
A vertically movable step that becomes an impassable obstacle when viewed from the opposite direction but is stepped on under the wheels from the forward direction, utilizing a mechanism with a lock and spring system to ensure temporary fixation during forward movement.
Effectively prevents vehicles from entering in the wrong direction by acting as an obstacle when reversed, enhancing safety on roads.
Smart Images

Figure 0003253121000001_ABST
Abstract
Description
[Technical Field]
[0001] This proposal involves installing a wrong-way vehicle prevention device on the road to physically prevent vehicles from entering or driving in the wrong direction. [Background technology]
[0002] Currently, wrong-way driving is prohibited by signs, but there is nothing physically to stop cars from going in the wrong direction, and wrong-way driving on expressways and other roads is a common occurrence. Summary of the Invention [Problem to be solved by the invention]
[0003] In addition to the current prohibition of entry using signs, this invention aims to solve the aforementioned problem of vehicles driving in the wrong direction by installing a device that physically prevents entry in the wrong direction. [Means for solving the problem]
[0004] This device solves the above problem by installing a vertically movable step that becomes an impassable obstacle when viewed from the opposite direction, but is stepped on under the wheels when viewed from the forward direction. [Effects of the Invention]
[0005] As mentioned above, if a footboard that can be stepped on under the wheels of vehicles coming from the forward direction but cannot be entered from the reverse direction is installed at the exit of a no-entry road, it will be useful for preventing vehicles from going the wrong way. [Brief explanation of the drawings]
[0006] [Figure 1] FIG. 2 is a side cross-sectional view of the device of the present invention before the vehicle reaches it. [Figure 2] 1 is a side cross-sectional view of the device of the present invention when a vehicle approaches the device from the forward direction and the front wheel presses down on the tread at point A. [Figure 3]This is a side cross-sectional view of the vehicle moving forward, when the front wheels reach point B, the lock on the footplate is released, and the footplate returns to its original position. The position of the footplate in [Figure 1] and [Figure 3] prevents entry from the opposite direction. DETAILED DESCRIPTION OF THE INVENTION
[0007] In Figure 1, the footplate 1 moves up and down around the axis 2 by means of the spring plate 3. When the front wheel of the vehicle reaches point A and the footplate 1 is stepped on, the lock 4 goes under the spring lock 5, which returns to its original position by the spring 6, and both the footplate 1 and the lock 4 are temporarily fixed in the lowered position.
[0008] In Figure 2, both the step 1 and the lock 4 are lowered and temporarily fixed.
[0009] In Figure 3, the front wheels of the vehicle move forward sufficiently from point A and step down on footplate 7 when they reach point B. Footplate 7 rotates on axis 8, and spring 9 pushes both spring locks 5 and 10 forward, unlocking lock 4. Lock 4 and footplate 1 are then returned to their original height by spring plate 3. Footplate 7 is fitted with movable stone protection plate 12 attached to axis 11, which slides forward to prevent the entry of pebbles and sand. When the tread 1 is raised, it acts as an obstacle to vehicles that try to reverse in from this exit and go in the wrong direction, preventing them from going in the wrong direction. It would be even more effective if reflective tape or lamps were attached to the tip 13 of the tread 1 or on the stone protection plate 12. It is also easy to imagine using a self-holding circuit switch instead of lock 4 or spring lock 5, fixing treadle 1 downward with an electromagnet, and releasing the self-holding by using an off switch at treadle 7's position, electrically restoring the downward fixation of treadle 1. [Explanation of symbols]
[0009] 1 Wheel tread 2-axis 3 Spring plate 4. Rock 5 Spring Lock 6 springs 7 Wheel treads 8 axes 9 Spring 10 Spring Lock 11 axes 12 Stone prevention board 13 Front of treadle
Claims
1. A device on a roadway that does not obstruct vehicles traveling in the forward direction, but physically obstructs vehicles entering or traveling in the wrong direction.
2. This device is equipped with a step that is pressed down by a vehicle moving forward from the forward direction and does not become an obstacle, but becomes an obstacle when a vehicle moves in from the reverse direction.