HRP970376A2 - A warning device put on a vehicle used on a construction site - Google Patents

Description

The invention relates to a warning device according to the properties given in the introductory part of patent claim 1.

These types of warning devices are used for early or conspicuous warning in the face of unexpected traffic restrictions. One such traffic restriction is caused, for example, by a slow-moving construction site service vehicle used for street works and street infrastructure works, or by a vehicle standing on the street. But even with the normal driving of a construction site service vehicle, traffic will be limited because such a vehicle does not move as fast on the highway as other vehicles. Warning notices in front of places where traffic is restricted serve, first of all, to protect the workers who work there.

The warning devices described in the preamble of claim 1 are generally known. They have a flat warning device on a trailer pulled by a construction site service vehicle. These trailers can be equipped with a loading surface, so that a purely safety trailer becomes a transport trailer for small accessories and tools. Common for these trailers is that the warning device requires a higher cost than would be required for a special additional vehicle.

Furthermore, a road sign that can be placed on the roof of a passenger car and that can be rolled up is known. The rolled traffic sign is located on the bottom side and when the traffic sign is highlighted, the free edge of the foil, or similar, will be pushed upwards by a mechanism that works on the principle of scissors.

The invention is based on the task of simplifying the warning device presented as a known state of the art.

This task is solved by the properties presented in claim 1.

Since the warning device is mounted directly on the site service vehicle, an expensive trailer can be omitted. When applying, some foil, tarpaulin or strip of some other suitable fabric, with a print that corresponds to the intended purpose, will be placed on the vehicle and unrolled. This can also be done when the trailer on which the warning device is located is separated from the vehicle and placed at some distance from the stopped vehicle. In addition to the warning from the trailer, there will be another warning on the vehicle itself.

The fastening of the warning device on the vehicle is such that the tarpaulin roll can be easily replaced.

Other suitable embodiments of the warning device according to claim 1 are the subject of dependent claims.

In the following text, the invention will be explained in more detail through an example of execution shown in the drawings, whereby

- picture 1 shows a front view of the warning device,

- Figure 2 shows a side view of the warning device, on an enlarged scale compared to Figure 1.

The tarpaulin 1, which preferably consists of a reinforced polyurethane fabric, is attached from the upper side to the shaft 2 on which it can be wound. On the tarpaulin 1, as shown in Figure 1, warning signs of various types were applied, and this by means of foils with signals stuck on the tarpaulin 1.

Shaft 2 and the tarpaulin 1 wound on it are protected by cover 3. Shaft 2 consists of an aluminum round profile with a diameter of 60 mm.

On the lower edge of the tarpaulin 1 there is a bar 4 which extends over the side edges of the tarpaulin, and which is preferably made of a round tube.

The cover 3 has an arm 5 directed obliquely downwards.

Flashing warning lights 6 are attached to the cover 3 via corner supports 7. The corner brackets 7 are made of one bent aluminum round tube with a diameter of 35 mm and are attached to the cover 3 using clips 8.

Attaching the tarpaulin 1 to axle 2 on trucks is done using hook 9, for example in the rainwater gutter, and for trucks with a tarpaulin it will be hung on the tarpaulins. If there is a door, then the clamp 10 will be used, with which the device for hanging the tarpaulin 1 will be attached to the underside of the door.

Shaft 2 is driven by a transmission 11 with bevel gears, which can be activated by a lever that can be inserted into opening 12. When using, tarpaulin 1, with the desired sign affixed, is placed on the truck in a rolled state. At the point of use, the tarpaulin 1 will be unrolled by starting the transmission 11 with bevel gears. The rod 4 achieves a certain tension of the tarpaulin 1 with its mass. In order, for example, to prevent the flapping of the tarpaulin 1 when the vehicle is in motion, the rod 4 will be hooked with its ends that stick out of the tarpaulin 1 into the downward-opening hooks on the truck, whereby can be tightened by moving the transmission 11 with bevel gears in the opposite direction of the tarpaulin 1.

When the tarpaulin 1 is no longer needed, the connection between the rod 4 and the hook will be separated, so the tarpaulin 1 will be rolled up until it is used at the next place of work, or it can be rolled up after the vehicle is used.

Claims (9)

1. A flat warning device, equipped with warning signs, which is mounted on a construction site service vehicle, characterized in that a roll-up tarpaulin (1) can be attached to the rear of a construction site service vehicle. 2. Warning device according to claim 1, characterized by the fact that the tarpaulin (1) can be wound on the rotating shaft (2) on the upper side, while it can be attached to the construction site service vehicle on the lower side in the unrolled position. 3. Warning device according to claim 2, characterized in that the rotation of the shaft (2) is achieved by a transmission (11) with bevel gears. 4. Warning device according to claim 3, characterized in that the transmission (11) with bevel gears is activated by a handle inserted in the opening (12). 5. A warning device according to one of claims 2 to 4, characterized in that the shaft (2) with the tarpaulin (1) is replaceably attached to the construction site service vehicle. 6. A warning device according to one of claims 2 to 5, indicated by the fact that a bar (4) is placed on the tarpaulin (1) on the lower edge, extending across its width, which can be hooked into the connecting elements placed on the vehicle. 7. Warning device according to one of claims 2 to 6, characterized in that a cover (3) is placed above the shaft (2). 8. Warning device according to one of claims 2 to 7, characterized by the fact that flashing warning lights are placed at the upper end of the tarpaulin (1), 9. Warning device according to claim 8, characterized in that the flashing warning lights (6) are hung on the cover (3).