Wheel chasis: description and requirements

The anti-rollover is an indispensable device for the operation of trucks. Another name in the language of car owners is the "shoe", since their shape resembles a rectangular triangle with a bend. When you stop, the driver usually puts the car on a handbrake, but in some cases a single handbrake may not be enough.

For example, when you stop on a hillside, the hill will need an additional safety measure - a chopper, which secures the vehicle when the road is tilted. It is capable of withstanding a high load, so it can fit both a car and a truck.

The wheel chock for trucks must meet certain quality standards and have a certificate. With their help it is easy to prevent unexpected movement of the machine. At this point, the emphasis should be sure to all car owners.

Construction of chocks

The rules for the operation of the car oblige owners to always have wheel chocks for trucks. Requirements for them are as follows: they must have a design that meets all standards, as well as withstand high loads. Thus the driver should observe some conditions:

• Supports should be suitable diameter wheel.
• Location of the stop.
• The location in the trunk of a car (for cargo should be on the body or in the trailer).

Ignoring these conditions threatens with punishment - a large fine

There are 2 types of construction of chocks: triangular of the usual type and folding in the form of an abutment-wedge. The materials from which the wheel chock for trucks are made are also two. Firstly, it is a very strong, reinforced plastic of high quality. Secondly, it's galvanized steel. For the first specimen, the load starts at 800 kg and ends at 6,500 kg. For the second instance, the minimum endurance load is 1750 kg and the maximum load is 6,500 kg.

It would seem that the advantage of the steel stop is obvious, but there is a limitation. When transporting flammable, flammable liquids, materials, use is allowed only of plastic stops in the fire safety technique. If the truck is transporting loose materials, for example sand, it is preferable to use a steel stop, since it is possible for small items of the transported goods to enter the gap between the stop and the road, which in the case of plastic can lead to a rollback of the car due to a reduced resistance coefficient of the stop And the roadway.

Plastic stops

The most common mistake, when buying a chopper for trucks, is made by beginners who have no experience. They buy hard, but fragile plastic products. These stops quickly break when you hit them with a wheel. There is also a situation in which the driver forgets to remove them before continuing the movement, then in the case of plastic ones, only small pieces remain.

Plastic stops are very fragile, short-lived, so it is not recommended to purchase them, if later it is planned to operate under extreme conditions.

Rubber

More durable than plastic, is a rubber wheel chock for trucks.

Description of the product, According to many buyers, coincides with reality. Rubber stops are a very good option for buying, they are made of solid hard rubber, if you hit them, they will not break, unlike plastic ones. There are many different brands of rubber products, but the quality of all is about the same - good.

Metal

The strongest of the models presented is the metal wheel refloat emphasis for trucks. Metal has both a number of advantages, as well as a number of shortcomings in comparison with plastic and rubber analogues. First, the main advantage of metal stops is their strength. It is many times stronger than rubber or plastic. Secondly, it is possible to reliably use the folding variant, which is much more practical than its counterparts from other materials; The folding variant will occupy very little space in the trunk compared to the usual one.

The main disadvantage, sometimes the key to choosing, is the corrosive instability, that is, if the storage rules are violated, the product will be rusted and lose its reliability and durability. Use then the wheel chock for trucks will be unsafe.

Requirements

According to the known rules, the chocks should meet the following requirements:

1. The maximum load that the supports must withstand is equal to half the total mass of the car.
2. A tight installation under the wheels must be ensured.
3. Any possible slip on the roadway of the abutment should be ruled out.
4. Must have an alarm color: red, orange or yellow.

The conditions below are to be observed when truck chocks are used. Requirements SDA to them the following:

1. In vehicles weighing more than 3.5 tons (for trucks) and 5 tons (for buses), it is mandatory to use at least two stops.
2. The assembly of trucks weighing more than 3.5 tons and buses weighing more than 5 tons should provide for the presence of at least two stops.
3. They should be in an easily accessible place, but they must be firmly installed in order to avoid their loss.
4. For horse-drawn wagons, the design must assume a workable braking device and chocks.

Conclusion

If all of the above requirements are met, the chocks are allowed to operate. In addition, before going on sale, they must be tested for strength. Therefore, in the store, the choice of the buyer must fall on a quality product that can serve him for a long time.