JPS6017885B2 - Foldable vehicle intrusion prevention fence - Google Patents

Description

[Detailed Description of the Invention] This invention provides an entrance/exit to a park, an entrance/exit from a public road to a private road,
This invention relates to a foldable vehicle intrusion prevention device installed at the entrance and exit of a parking lot, which normally prevents vehicles from entering without permission and also allows vehicles to pass depending on the time of day or in an emergency.

As a side note, this type of vehicle intrusion prevention device is used to prevent vehicles from passing through fences that are shaped like an inverted U, such as those installed at the entrances and exits of parks, but allow people and bicycles to pass through. They are installed and fixed on the road surface at intervals that are difficult to reach, or, for example, installed at the entrances and exits of parking lots, which are placed underground when empty, and when full, are pulled out of the ground and protrude from the road surface. In addition, there are known fences in which the above-mentioned fence can be folded down to the road surface near its lower end, so that when a vehicle passes, the shelf is folded down to allow vehicles to pass.

However, if fences are erected on the road surface at intervals that allow vehicles to pass, even if an emergency such as a fire occurs and fire engines need to pass, fire engines may not be able to pass through. In addition, if it is necessary to force the vehicle to pass through the vehicle, the vehicle intrusion prevention shelf must be dismantled, which poses a problem that it cannot be used in an emergency. In such cases, a vertical hole with a depth equal to the height of the fence on the road surface is bored, or a hole approximately equal to the height of this fence is used to guide the vertical sliding of the fence. It is necessary to bury the length guide knots, making the installation work of the vehicle intrusion prevention shelf extremely large-scale, and unless the installation work is done in advance during road construction, it will be extremely troublesome if you try to install it later. There is the problem that the work is tedious work.Furthermore, in the case of fences that can be lowered to the road surface near the lower end, rain from cars often rides on the vehicle intrusion prevention fence when vehicles are passing, resulting in damage to workers. Conventional vehicle intrusion prevention racks have not been able to satisfy any of these problems.

In view of such theater viewing, the present invention has been developed so that it cannot be removed from the road surface and is normally made to stand up to prevent intrusion of vehicles.
To provide a vehicle intrusion prevention shelf which can be folded from its base to the road surface so that vehicles can pass through it without running over it depending on the time of day or in an emergency.

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

1 to 5, a foldable vehicle intrusion prevention shelf A of the present invention is shown.

This foldable vehicle intrusion prevention shelf A is composed of a cylindrical anchor bracket la and a storage bracket lb buried in the ground G, and a shelf body 3 having a substantially inverted U-shape. In this embodiment, the anchor bracket la and the storage bracket lb are integrally formed on a placket base plate 11, and are firmly buried in the ground G by fixing the bracket base plate 11 to the road surface with anchor bolts or the like.

In addition, the shelf main body 3 formed in a substantially inverted U shape has a pair of legs 9a.
, 9b, and a flange portion 10 at the bottom of one leg 9a.
A leg lower end 4a is formed which is partitioned by a, and a slider 2 is rotatably connected to the leg lower end 4a. This sake carrier 2 has a bearing part 5 on the upper part, and is fitted in an anchor bracket la having a closed upper end cylinder so that it can be moved vertically and rotatably in a horizontal direction. The portion 5 is connected to the leg lower end portion 4a.

When the slider 2 is pulled upward together with the shelf body 3 and reaches the uppermost position, the lower end of the slider 2 engages with a flange portion 7 protruding from the anchor bracket la. A flange 8 is provided to protrude outward so as to prevent the slider 2 from coming off. On the other hand, at the lower part of the other leg 9b of the shelf body 3, as shown in FIG. It is freely encouraged. When the shelf main body 3 is in use, this leg lower end 4b fits inside the storage bracket lb to prevent it from falling down, and when the above-mentioned one leg 9a is pulled up, the flange of the slider 2 8 is the anchor bracket l
When the storage bracket lb is in contact with the flange part 7 of a.
The length is slightly shorter than the lower chest end portion 4a so that it can be completely separated from the lower chest end portion 4a. Therefore, according to the foldable vehicle intrusion prevention shelf A of the present invention, when the shelf main body 3 is in the upright state, the lower end portions 4a, 4b of the legs are
are held in the anchor bracket la and the storage bracket lb, and the fence body 3 is pulled up in the direction of the arrow a, as shown by the solid line in FIG. 4b slips out of the anchor bracket la and the storage bracket lb, the lower end of the other leg 4b completely separates from the storage bracket lb, and the shelf body 3
becomes rotatable around the axis of one leg ga, and also becomes free to rotate between the lower end 4a of one leg and the bearing 5 of the slider 2, as shown by the imaginary line in FIG. , arrow a
After rotating in two directions, the shelf main body 3 can be folded in the direction of arrow a3. FIGS. 6 and 7 are explanatory diagrams showing modified examples of the connection state between the leg lower end 4a of one leg 9a and the slider 2. FIG.

This modified example differs from the embodiment shown in FIGS. 2 to 5 in that the upper end of the cylindrical anchor bracket lb, which is closed at both ends, has a flange portion 7 that protrudes only inward in the radial direction. The leg portion 9a of the shelf main body 3 has a partition between the leg lower end portion 4a which is competed within the anchor bracket la, and the leg lower end portion 4a is connected to the anchor bracket l.
This anchor bracket l
A flange portion 10a is provided to cover the upper end portion of a.
Further, a substantially disc-shaped bog slider 2, which is fitted into the anchor bracket la so as to be slidable in the vertical direction, has a diameter larger than the diameter of the upper end of the anchor bracket la, and this slider 2 is placed in the uppermost position. When the slider 2 is positioned, its circumference engages with the flange 7 of the anchor bracket la, preventing the slider 2 from slipping out from within the anchor bracket la. The end portion 4a is connected to the end portion 4a by a bendable connecting element 12 such as a chain or wire. In this way, by connecting the leg lower end 4a and the slider 2 with the connecting element 12, the overall structure can be simplified, and malfunctions due to rusting of the bearing can be prevented. be able to.

As described above, the foldable vehicle intrusion prevention shelf of the present invention is installed at the entrance to a park, the entrance from a public road to a private road, the entrance to a parking lot, etc., and is usually held in an upright position to prevent unauthorized vehicle access. In addition to preventing intrusion, the shelf body can be folded down to allow vehicles to pass depending on the time of day or in an emergency.

Also, at this time, the fence body is folded by a combination of horizontal rotation around the axis of one leg and vertical rotation around the rotation axis of the bearing part of the slider, so that the storage bracket is buried underground. By considering the position, the shelf body can be folded as close to one end of the road surface as possible, as shown by the chain lines in Figures 8 and 9, to ensure as wide a vehicle passage space as possible, and the shelf body can be folded as close to one end of the road surface as possible. In addition to being able to prevent the shelf from being stepped on, the shelf itself is fixed to the ground via anchor brackets buried in the ground, so there is no risk of the shelf being carried away or left on the side of the road. There is no such thing.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the foldable vehicle intrusion prevention shelf of the present invention in an upright state, Figs. 2 to 4 are sectional views showing the lower end of one leg, and Fig. 5 is a sectional view showing the lower end of the other leg. Sectional view shown, No. 6
7 and 7 are cross-sectional views showing a modified example of the lower end of one leg,
FIGS. 8 and 9 are explanatory diagrams showing the installation state of the foldable vehicle intrusion prevention shelf according to the present invention. A... Vehicle intrusion prevention shelf, G... Underground, la... Anchor bracket, lb... Storage bracket, 2...
- Slider, 3... Shelf body, 4a, 4b... Leg lower end, 9a, 9b... Leg. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] 1. Fit the lower end of one leg of the roughly inverted U-shaped fence main body into an anchor bracket buried in the ground so that it can slide vertically, and fit the lower end of the other leg into a storage bracket to raise it up. The lower end of the one leg and the anchor bracket are fitted into the anchor bracket so as to be slidable in the vertical direction, and are bent through a slider that prevents the anchor bracket from coming off the anchor bracket. By pulling out the lower end of one of the legs above the upper end of the anchor bracket while leaving the slider in the anchor bracket, the lower end of the other leg is detached from the storage bracket. A foldable vehicle intrusion prevention fence characterized by one leg being horizontally rotatable.