Scrap metal trailer for a car. How to make a light trailer with your own hands? Make a trailer for a car, show dimensions

How to make a trailer for a car with your own hands and what tools are needed when creating this type of “accessory” for a car?

On this page you will learn how to make a trailer for your iron horse with your own hands. We will definitely tell you what you will need for this, looking ahead, I will tell you that nothing supernatural is required, an ordinary tool such as an angle grinder, a screwdriver, an electric jigsaw, etc. Also pipes for the frame and much more that can be easily found at any construction base.

And upon completion of the manufacture of the trailer, you will learn how and where to register the trailer with the traffic police.

Sometimes, to solve the problem of lack of space in the trunk, the best option is to do. Even if the cargo you need to transport is not heavy, its dimensions may become an obstacle to normal placement in the trunk of your car. It is clear that there are different types of cars, and there are enough models with large and spacious luggage compartments, but now we are taking into account middle-class passenger cars, the percentage of which is the highest on our roads. For one-time transportation of such voluminous luggage around the city and beyond, you can use the services of a cargo taxi. If we are talking about multiple transportations, using a taxi may not be an effective way to solve the capacity problem. One possible way out of this situation would be to use a trailer. There are two ways: buy a ready-made trailer or make DIY trailer for a car with your own hands. The first option saves you time both on production and on subsequent paperwork. And the second is money and time to find a trailer that matches your car model. We will consider the second option.

In order to make a trailer for a car with your own hands, we will need certain tools and materials, the availability of which should preferably be taken care of in advance.

Necessary materials and components for a homemade trailer

The frame is the basis of the trailer; it is its strength and rigidity that determines the durability of the trailer as a whole. For greater reliability, it is recommended to use a welded connection of elements. You should start by determining the dimensions of the frame - length and width. The size is determined by the outer edges of the frame elements. To determine the full width of the future frame, it is necessary to add 2 wall thicknesses to the distance between the inner edges of the side walls. If the frame is located directly between the wheels, and not above them, then you also need to take into account the gaps between the tire and the bead.

After determining the dimensions, the frame is tried on. The metal profile is laid out on a flat surface, maintaining perpendicularity between the elements. The frame elements are combined with clamps. At this stage, the shape of the frame is controlled; for this, you need to measure two diagonals of the resulting rectangle with a tape measure. The obtained values ​​must coincide; in extreme cases, a size deviation of 2-5% is allowed. It is advisable to provide a stiffening rib in the design; a rectangle or square itself is a rather unstable structure under load.

If other trailers are used, it is better to choose a tow ball of the same size as theirs.

When performing this element of the trailer, you need to remember that the shorter the length of the connecting part, the faster the trailer will respond to the movement of the car. This means that even with a slight lateral movement of the drive wheels, the trailer will immediately move sharply behind them. This may result in damage to the cargo in the trailer and its fall. The optimal length is 1.5-2.5 m, depending on the purpose of the trailer. As a material, it is better to choose, as for the frame, steel pipes of square cross-section in the amount of three pieces.

The connection of the pipes to the frame is welded; for greater strength, it is recommended to reinforce it with corners. Before welding, fitting is performed so that the coupling is carried out exactly along the axis of the trailer.

A safety rope or chain is also mounted here. When moving, it should not drag on the ground. If desired, it is possible to install a small folding wheel at the hitch point for easy transportation of the trailer without a car.

Installation of the coupling is possible using bolts or welding. Before finally attaching it to the trailer frame, you need to once again check that the dimensions of the frame pipes and the groove of the gutter itself match. The width of the groove should not exceed the width of the pipe by more than 5 mm.

In the case of welded fastening of the coupling, high strength of the connection is ensured, but if it is damaged, a gas burner will be required for dismantling. The strength of a bolted connection is somewhat less. It is recommended to use bolts of the eighth strength class; less durable ones may not withstand shear forces. Two bolts are enough to connect, more of them will weaken the frame element and coupling due to the holes for the bolts.

There is a rule according to which the axle should be placed at a distance of 35-40% of the entire length of the trailer from the rear. Having measured the distance, you need to indicate the location of the future axis. You can install the axle by placing the frame upside down on the table (assembly from top to bottom). The axis in this case is mounted on a table, on a couple of 4x4 blocks, and the spindles hang freely. At the intended location for installing the axle, the paint is removed from the frame. The distance between the bushings is divided by two and this point on the axis is marked with a marker.

To control, the width of the frame is measured again, divided by two and the resulting distance is set aside from the middle of the axis, and its position is adjusted. After this, you can begin the final installation. The joining of elements is carried out by spot welding along the entire length of the contact. It is better to use a spring-shock absorber suspension, as it provides greater softness, although it has low strength.

Stabilizing jacks

Necessary to ensure a horizontal position of the trailer. The best option for placement is the corners of the frame. The option of installation on only one side of the trailer is possible. From the point of view of lifting force, it is better to use a screw mechanism. It can even be used to change a wheel on a trailer.

The trailer is manufactured according to the design drawing, which must meet the technical requirements provided for by GOST 37.001.220-80, valid in the Russian Federation and Ukraine. It describes standards, if not met, it will be impossible to register a homemade trailer for a passenger car with the state traffic inspectorate, and all the time and money will be wasted.

Device boards

When making side walls, you can use wood boards, metal fragments, plywood panels or polycarbonate; the choice of the type of material depends on the purpose of the device. Due to its low weight and convenient form of processing, wood or plywood is most often used; initially, a flooring made of boards is attached to the base, it must be bolted, and the main box is also bolted to this base. But to add reliability, it is recommended to attach steel corners to the corners of the box.

Equipment and components

For the manufacture of a trailer weighing up to 750 kg, which does not require a driver's license with cat. BE will need the following equipment and components:

1. A square pipe or steel channel for making a frame and a coupling unit with a vehicle. Its optimal cross-section is 25x50 mm, and the pipes are 40x40 mm. The length is selected depending on the dimensions specified in the drawing.
2. Sheet steel with a thickness of 0.6 mm. and above, from which the sides of the body will be cut and assembled. The number of sheets is calculated based on the height and length of the sides.
3. A thick sheet of plywood, OSB, plastic, polycarbonate or tin for making the bottom. Selected according to the size corresponding to its area.
4. Chassis. It is optimal to use the front axle removed from an old SZD (disabled) motorized wheelchair. An eight-leaf spring suspension is also often installed, which is mounted on rubber bushings. In appearance it is similar to the Volga car, but lighter. The springs are attached to the bridge beam with stepladders, and fillets are placed under them.

1. The bridge is made of a ∅25 mm pipe, to the ends of which axle shafts are welded. The hubs rotate on them. The axle pipe, axle shaft, fillet and springs are assembled into a single unit, connected with M8 bolts.
2. A pair of wheels. They are borrowed from a motorized stroller, in which case they will add minimal weight to the structure, or a VAZ car. The VAZ 2108 rear beam hubs are suitable for their installation.
3. Suspension. The best option would be the spring-hydraulic units of the Ural motorcycle due to their low cost and reliability.
4. Towing device (towbar) for coupling to the machine.
5. Brakes.
6. Electrical equipment (turning and parking lights, brake lights and the drive with which they will be connected to the vehicle).
7. Awning or material for it (banner fabric, tarpaulin, etc.).
8. Fastening devices (corners, brackets, etc.).
9. Tools for working with metal (grinder, screwdriver, electric jigsaw, drill, hammer, tape measure).
10. Welding machine.
11. Manufacturing and assembly of a homemade trailer for a car

The assembly of a passenger trailer occurs in accordance with the drawing and consists of several stages:

1. Frame assembly. This part of the product is a load-bearing part, and the durability of the trailer will depend on its strength. To do this, the pipe or profile is cut to size and welded together. The resulting rectangle is checked for accuracy and evenness of the assembly. Additionally, a stiffener is provided, since the rectangular frame is unstable under load.
2. Connection point to the vehicle. When making it, you need to keep in mind that the shorter it is, the faster the trailer will respond to vehicle maneuvers. The optimal length of the connecting part will be 1.5-2 m. The same material is used for its manufacture as for the frame. Before starting welding, the correct placement of the parts to be joined is checked so that the coupling is in the middle. To ensure that the connecting part does not break under load, safety cables are mounted and welded at the bottom of the structure.

1. Coupling. Serves to attach the connecting part of the trailer to the vehicle. Can be mounted either with bolts or welding. The first method is less reliable, but can be easily dismantled. The welded assembly is durable, but may require a gas torch to remove it. For bolted connections, samples of the eighth strength class are selected.
2. Axle assembly. According to general rules, the axle is mounted at a distance of 40% from the rear side of the trailer, that is, it is slightly shifted from the center to the rear. Fastening occurs using a bolted connection, a frame is installed on it, and also connected with bolts.
3. Stabilizing jacks are a desirable but not required part of the structure. They ensure the trailer is level when driving. The best option for their placement is in the corners of the frame.

1. Flooring on the side walls. It is made of metal, plastic, wood or other material, depending on the cargo that is planned to be transported. It is secured with bolts, after which the sides are mounted on the frame. The corners are reinforced with metal corners.

1. Finishing. They did and the components are painted, after which the power connection route for electrical appliances is drawn. Headlights, lanterns and reflectors must be installed. Connection to a single network is made using the towbar socket. If necessary, a homemade trailer is equipped with a braking system.

Purpose and features of a passenger trailer for a car

A passenger trailer for cars is intended for transporting various types of cargo, tourist equipment and small tourist boats, the length of which does not exceed 3.5 m. It consists of a frame, suspension, body, bridge, and is connected to the car with a coupling device. Trailers for passenger cars, manufactured at the factory, do not require additional permits for registration, but are not always suitable for motorists in terms of characteristics or cost.

A homemade trailer for a passenger car is made according to the drawing and adhering to GOST when manufacturing and assembling it yourself. Registration of such a product is much more expensive, as it requires additional permits for operation. Moreover, all manufacturing costs, taking into account registration costs, will be lower than purchasing a new one. It should be taken into account that a homemade trailer is not inferior in quality to a factory trailer, since the manufacturing process is controlled by its owner.

Register a trailer with the traffic police

To register a trailer with the traffic police, it is necessary to carry out an examination of the trailer. This is what the All-Russian Society of Automobile Enthusiasts (VOA) does. Each region has its own. Here are the addresses of SAI branches known to me: 1. St. Petersburg. st. Zhukovsky, 55 tel. 273-47-30 VOA Alexey Pavlovich,

2. Perm All-Russian Society of Motorists, tel. 12-83-14 and 12-69-65,

3. Moscow State Scientific Center of the Russian Federation Federal State Unitary Enterprise NAMI tel. 456-32-31 Fedorov Artyom.

To pass the examination, the trailer must comply with the following GOST.

TRAILERS FOR PASSENGER VEHICLES

Parameters, dimensions and general technical requirements

OST 37.001. 220-80

This standard applies to all types of trailers intended for towing by cars and minibuses on the roads of the general USSR network. The standard does not apply to trailers, technical specifications for which the design was approved before the introduction of this standard. The main terms used in the standard and their definitions are given in the reference appendix.

1. PARAMETERS AND DIMENSIONS

1.1. The total design weight of the trailer must not exceed that permitted by the manufacturer of the towing vehicle, must not exceed the curb weight of the towing vehicle, and must not exceed 1800 kg.

1.2. The total structural weight of an unbraked trailer must not exceed that permitted by the manufacturer of the towing vehicle and must not be more than half the curb weight of the towing vehicle.

1.3. The vertical static load in the center of the ball joint of the coupling device for any weight state of the trailer must correspond to the value permitted by the manufacturer of the towing vehicle, but must not be less than 240 N (25 kgf) and more than 980 N (100 kgf).

1.4. The length of the trailer should not be more than 1.5 times the length of the main towing vehicle or more than 8 m.

1.5. The width of the trailer must not exceed the width of the main towing vehicle by more than 200 mm on each side and must not exceed 2.3 m.

1.6. The height of the trailer should not be more than 1.8 times the trailer track width or more than 3 m.

1.7. The center of gravity of a loaded trailer must be located in such a way that the ratio of the height of the center of gravity to the track of the trailer wheels is no more than 0.725.

1.8. The ground clearance of the trailer should not be less than the ground clearance of the main towing vehicle.

1. TECHNICAL REQUIREMENTS

2.1. General requirements

2.1.1. Trailers must be single-axle, but a tandem axle may be used.

2.1 2 A trailer with a horizontal inner floor, installed on a horizontal surface, must have a load of no more than 55% of its total weight on the tire(s) of one side.

2 1.3. The design of the trailer must be designed for movement as part of a road train of the full structural mass at the maximum speed permitted by the manufacturers of the traction vehicles.

2.1.4. The design and dimensions of the trailer drawbar (frame) must ensure the possibility of its deflection relative to the coupling ball installed on the vehicle at the angles specified by OST 37.001.096-77.

2.1.5. Trailers must be equipped with two non-removable safety chains (cables), which in the event of an emergency breakage (breakage) of the towbar should not allow the drawbar to touch the road surface, while ensuring control of the trailer.

2.1.6. Trailers must have two wheel chocks (“shoes”).

2.1.7. Trailers must have space for a jack.

2.1.8. The control for the parking brake system of trailers must be removable and located on the right side in the front of the drawbar (frame).

2.1.9. Trailers must be equipped with wheel protective devices (fenders, mudguards) if body parts do not perform the functions of this device.

2.1.10. The materials used for the manufacture of trailers must have resistance to fire from exposure to water, fuel and oils no lower than the resistance of materials of parts and assemblies for similar purposes of the main traction vehicle.

2.1.11. Painting of trailers and control of the appearance of the coating in accordance with GOST 7593-80.

2.1.12. The trailer must have a climatic design in accordance with GOST 15150-69, corresponding to the climatic design of the main traction vehicle, and must be designed for storage conditions in open areas.

2.1.13. The service life of the trailer in accordance with its purpose and operating conditions is regulated by regulatory and technical documentation approved in the prescribed manner.

2.2. Requirements for systems, components and assemblies

2.2.1. Trailer brake systems must comply with the requirements of OST 37.001.016 70.

2.2.2. The locking device for coupling with a traction vehicle must comply with the requirements of OST 37.001.096-77.

2.2.3. Electrical equipment, external lighting and signaling devices must comply with the requirements of GOST 3940-71. GOST 8769-75, GOST 10984-74 and GOST 20961-75.

2.2.4. Trailers must have brackets (or space) for attaching a license plate in accordance with GOST 3207-77.

2.2.5. To connect to the vehicle's electrical system, the trailer must have a plug in accordance with GOST 9209-76 with a connecting cable.

2.2.6. Trailers must have support legs that ensure the stability of the trailer when uncoupled and do not impair the cross-country ability of the road train.

When the vertical static load from the trailer locking device is more than 390 N (40 kgf), the front support leg must be equipped with a lifting-lowering mechanism that ensures installation of the locking device in the position required for coupling (uncoupling). When the mechanism is manually driven, the force on the handle should not exceed 118N (12 kgf).

1. COMPLETENESS

3.1. Trailers equipped with tires that are not unified with the main traction vehicle must have a spare wheel and a device for securing it.

3.2. Trailers must be supplied with the necessary tools and accessories if the set of tools and accessories of the main towing vehicle is insufficient to service the trailer.

1. MARKING

4.1. Trailers must have a nameplate and markings in accordance with industry regulations and technical documentation.

4.2. Trailers must have an additional sign near the locking device in accordance with GOST 12971-67 indicating the total structural weight of the trailer; the maximum static load on the coupling ball.

Terms and definitions adopted in this standard TermDefinition Main traction vehicleAccording to GOST 3163-76 Twin axleTwo parallel axles of the trailer, the distance between which does not exceed 1 m.

If your trailer meets these requirements, passes an examination, and has checks, certificates, and a copy of the welder’s certificate, you will not have any problems registering with the traffic police.

How to make a trailer for a car video

DIY car trailer video

Do-it-yourself trailer is easy

DIY car trailer

A trailer is an excellent tool that allows you to transport large and bulky cargo. The luggage compartment cannot always cope with this task.

Dear readers! The article talks about typical ways to resolve legal issues, but each case is individual. If you want to know how solve exactly your problem- contact a consultant:

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It may have too little space for transportation. The dimensions of the cargo can become an obstacle to its normal placement in the trunk of a car.

Undoubtedly, all vehicles have different luggage compartment capacity. Some models have large and spacious compartments for storing cargo.

But we are considering middle-class passenger cars, which in most cases are purchased by Russian drivers.

If such transportation is carried out one-time, then you can use the services of a cargo taxi. But if you need to transport cargo regularly, then this method can become very expensive.

In such a situation, you can either buy a homemade trailer for a car, or personally make it yourself. Each driver chooses the most suitable option for him.

For example, buying a ready-made trailer will save time and effort on its manufacture. And homemade products require less cash investment.

Basic moments

To make a trailer you will need certain crafts and tools. They need to be prepared in advance.

So, masters will need:

• steel channels;
• plywood;
• Sheet steel;
• wheels with running gear;
• fasteners;
• aluminum tubes;
• welding machine;
• electrical equipment.

If the master has not previously dealt with assembling trailers, then he needs a drawing. It will be the instructions for carrying out all the necessary operations in the process.

Please note that the drawing must be drawn up correctly and meet all technical requirements.

This act includes requirements affecting the manufacture of trailers for passenger cars. Some drivers take the legislator's regulations very lightly, but in vain.

If the trailer does not comply with all OST standards, it will not be possible to register it.

And without going through such a procedure, its use is considered illegal. That is, the driver will waste his time, money and effort.

Concepts

Let's consider the basic concepts related to our topic, which are presented in:

All vehicles that fall under the term “trailer” must be registered in the prescribed manner.

What is its purpose

Obviously, the main purpose of the trailer is to transport goods. The traffic rules regulate the procedure for performing relevant actions.

It is very important to comply with such rules, otherwise the driver of a vehicle with a trailer will create a threat of causing damage to other road users.

For such actions he may be brought to justice. The rules for the carriage of goods are defined in:

Legal regulation

We have already mentioned traffic rules. The Rules define the concept of “trailer” and also contain the rules for transporting goods.

The traffic rules define a list of documents that must be presented to the traffic police officer. Among others, special acts for trailers are noted ().

Clause 10.3 of the Rules stipulates the speed limit for a vehicle with a trailer - 70 km/h or 90 km/h (on highways). We also mentioned that the trailer is created according to certain parameters.

He meets the requirements if the driver wishes to successfully complete the registration procedure with the traffic police.

Currently, OST 37.001.220-80 “trailers for passenger cars” is in force. What to pay attention to:

It is important to mention another legal act – the Code of Administrative Offenses of the Russian Federation. It is in it that the penalties for non-compliance with the legislator’s instructions are fixed.

For example, if a trailer does not have a state registration sign, then it will be fined 500 rubles ().

For violating the rules for transporting goods, you will also have to pay 500 rubles ().

If the driver does not have registration documents for the trailer, then he will be fined 500 rubles in accordance with.

How to build a homemade trailer for a car

How to make a car trailer with your own hands? It is not difficult to perform such actions, but it is very important to carefully follow the instructions in the drawing.

If a discrepancy is detected, the registration of such a product will not be carried out. In such a situation, the driver will waste time, effort, and money.

The fact that the trailer will have to be registered must be remembered during the construction stage. This will allow you not to complicate your task with alterations and modifications in the future.

It's easier to follow all the instructions from the very beginning. If the driver decides to make a trailer, then he saves his money. Ready-made vehicles for transporting goods are more expensive.

At the same time, when deciding to create a trailer, you must understand that such operations will require additional costs, time and effort.

Difficulties often arise at the registration stage. It may be refused for various reasons. At the same time, registering a finished trailer from the manufacturer is much easier.

Required set of tools and materials

First of all, you need to purchase the necessary set of tools and materials. This list may differ depending on what kind of trailer a person wants to make.

We will give an approximate list:

• for the frame and connection unit you will need a pipe with a square cross-section (40x40 mm). It is permissible to take a larger pipe, but if this does not lead to an increase in the mass of the entire structure. The length and quantity are determined according to the drawing;
• to install the sides you will need a steel sheet (thickness - at least 0.6 mm). To calculate the quantity, you need to study the drawing. Multiply the length of the sides by their height. So, the area is calculated. After this, you will have an idea of ​​how many sheets are needed and what size they should be;
• the bottom can be made of tin, thick plywood or polycarbonate;
• you can make the chassis yourself or use the front axle of an SZD motorized stroller;
• brake system;
• towbar;
• electrical appliances and conduct for connection to the car;
• tarpaulin or other moisture-resistant fabric to cover the trailer;
• fasteners (corners, brackets, etc.);
• welding equipment;
• electric tools for working with metal objects (jigsaw, grinder, etc.).

Where to get drawings

Video: homemade trailer

The master will ensure that the finished product meets the requirements of the regulations we have reviewed.

Where can I get the drawing? If you have enough experience and knowledge, then you can do it yourself.

At the same time, it is allowed to use ready-made options. They are available in large quantities on the Internet, including for creating caravans.

The finished drawing can be transformed at the driver's request. At the same time, it is necessary to ensure that after such changes the trailer still meets the requirements of OST.

Assembly instructions

Assembling a homemade two-axle trailer for a passenger car includes the following steps:

How to legitimize (registration)

Every car owner is familiar with the car registration procedure. But not everyone knows how to register a trailer correctly. Is it really necessary to do this?

In accordance with this vehicle must be equipped with state registration plates.

The driver is obliged, at the request of the traffic police inspector, to provide documents confirming the fact of completing this procedure.

Failure to comply with such instructions will result in liability. The driver will be fined.

To avoid these consequences, you must register the trailer. You need to start by preparing documents that can confirm the fact that the product meets the requirements of the legislator.

To do this, a person contacts an accredited testing laboratory. Its employees will conduct tests to verify the homemade trailer.

If they are successful, a certificate of ability to safely operate the trailer will be provided.

A passenger car is not intended for transporting large cargo due to lack of space in its luggage compartment. If such transportation is necessary, the only way out of the situation is to use a light trailer. The modern market offers a large selection of such devices. But it is not necessary to spend quite a lot of money on purchasing a finished product, since you can make it yourself by selecting the necessary parts and tools.

Necessary materials and components for a homemade trailer

The trailer is manufactured according to the design drawing, which must meet the technical requirements provided for by GOST 37.001.220-80, valid in the Russian Federation and Ukraine. It describes standards, if not met, it will be impossible to register a homemade trailer for a passenger car with the state traffic inspectorate, and all the time and money will be wasted.

For the manufacture of a trailer weighing up to 750 kg, which does not require a driver's license with cat. BE will need the following equipment and components:

1. A square pipe or steel channel for making a frame and a coupling unit with a vehicle. Its optimal cross-section is 25x50 mm, and the pipes are 40x40 mm. The length is selected depending on the dimensions specified in the drawing.

2. Sheet steel with a thickness of 0.6 mm. and above, from which the sides of the body will be cut and assembled. The number of sheets is calculated based on the height and length of the sides.

3. A thick sheet of plywood, OSB board, plastic, polycarbonate or tin for making the bottom. Selected according to the size corresponding to its area.

4. Chassis. It is optimal to use the front axle removed from an old SZD (disabled) motorized wheelchair. It is also often installed, which is mounted on rubber bushings. In appearance it is similar to the Volga car, but lighter. The springs are attached to the bridge beam with stepladders, and fillets are placed under them.

5. The bridge is made of a ∅25 mm pipe, to the ends of which axle shafts are welded. The hubs rotate on them. The axle pipe, axle shaft, fillet and springs are assembled into a single unit, connected with M8 bolts.

6. A pair of wheels. They are borrowed from a motorized stroller, in which case they will add minimal weight to the structure, or a VAZ car. The VAZ 2108 rear beam hubs are suitable for their installation.

7. Suspension. The best option would be the spring-hydraulic units of the Ural motorcycle due to their low cost and reliability.

8. Towing device (towbar) for coupling with the machine.

9. Brakes.

10. Electrical equipment (turning and parking lights, brake lights and the drive with which they will be connected to the vehicle).

11. Awning or material for it (banner fabric, tarpaulin, etc.).

12. Fastening devices (corners, brackets, etc.).

13. Tools for working with metal (grinder, screwdriver, electric jigsaw, drill, hammer, tape measure).

14. Welding machine.

Manufacturing and assembly of a homemade trailer for a car

The assembly of a passenger trailer occurs in accordance with the drawing and consists of several stages:

1. Frame assembly. This part of the product is a load-bearing part, and the durability of the trailer will depend on its strength. To do this, the pipe or profile is cut to size and welded together. The resulting rectangle is checked for accuracy and evenness of the assembly. Additionally, a stiffener is provided, since the rectangular frame is unstable under load.
2. Connection point to the vehicle. When making it, you need to keep in mind that the shorter it is, the faster the trailer will respond to vehicle maneuvers. The optimal length of the connecting part will be 1.5-2 m. The same material is used for its manufacture as for the frame. Before starting welding, the correct placement of the parts to be joined is checked so that the coupling is in the middle. To ensure that the connecting part does not break under load, safety cables are mounted and welded at the bottom of the structure.

3. Coupling coupling. Serves to attach the connecting part of the trailer to the vehicle. Can be mounted either with bolts or welding. The first method is less reliable, but can be easily dismantled. The welded assembly is durable, but may require a gas torch to remove it. For bolted connections, samples of the eighth strength class are selected.

4. Axle assembly. According to general rules, the axle is mounted at a distance of 40% from the rear side of the trailer, that is, it is slightly shifted from the center to the rear. Fastening occurs using a bolted connection, a frame is installed on it, and also connected with bolts.

5. Stabilizing jacks are a desirable but not required part of the structure. They ensure the trailer is level when driving. The best option for their placement is in the corners of the frame.

6. Flooring on the side walls. It is made of metal, plastic, wood or other material, depending on the cargo that is planned to be transported. It is secured with bolts, after which the sides are mounted on the frame. The corners are reinforced with metal corners.

7. Finishing. They did it and the nodes are painted, after which the power connection route for electrical appliances is drawn. Headlights, lanterns and reflectors must be installed. Connection to a single network is made using the towbar socket. If necessary, a homemade trailer is equipped with a braking system.

Purpose and features of a passenger trailer for a car

Intended for transporting various types of cargo, tourist equipment and small tourist vessels, the length of which does not exceed 3.5 m. It consists of a frame, suspension, body, bridge, and is connected to the vehicle with a coupling device. Trailers for passenger cars, manufactured at the factory, do not require additional permits for registration, but are not always suitable for motorists in terms of characteristics or cost.

A homemade trailer for a passenger car is made according to the drawing and adhering to GOST when manufacturing and assembling it yourself. Registration of such a product is much more expensive, as it requires additional permits for operation. Moreover, all manufacturing costs, taking into account registration costs, will be lower than purchasing a new one. It should be taken into account that a homemade trailer is not inferior in quality to a factory trailer, since the manufacturing process is controlled by its owner.

Large or oversized cargo requires large space for transportation. The luggage compartment of a passenger car is not suitable for this task - there is too little space. The only option is to use . At the same time, it is not necessary to select it for the car, look for it in the markets and spend money and time on it. You can assemble this device yourself using only the most necessary parts and components.

First of all, you need to find and prepare all the components and tools that will be useful for self-assembly.

After everything has been purchased, an initial drawing is developed, which is subsequently used to guide assembly. There are a lot of different drawings and sketches on the Internet - you can choose anything based on the available materials, parts, capabilities and needs.

Let's consider the most universal option - a cargo trailer for a Zhiguli type passenger car.

1. Connecting elements of the sides (from);
2. Board (lining board, 4 pcs.);
3. Frame (steel pipe 40x40);
4. Crossbar (pine beam 90x50, 3 pcs.);
5. Rod (pipe Ø30, 2 pieces - longitudinal, 1 piece - transverse);
6. Wheel with hub (2 pcs);
7. Safety chain;
8. Electrical wiring connector;
9. Mudguard with guy wire (conveyor belt);
10. Shock absorber (from the Ural motorcycle, 2 pcs.);
11. Spring with rubber bumper;
12. Grasping device (purchased product);
13. Bridge beam (80x5 steel pipe);
14. Tailgate lock (2 pcs.)

DIY assembly

We build a homemade trailer according to the drawing, using prepared tools and components, in several stages.

1. Frame assembly. The frame is the load-bearing part of the trailer, so the durability of the product depends on its strength and reliability. To make it, you can use a steel channel (25x50) or a pipe (40x40). We cut the profile according to the dimensions, after which we weld the parts together. We measure the resulting rectangle for evenness and welding accuracy. It is necessary to provide a stiffening rib, since the rectangular or square shape of the frame is quite unstable under heavy loads.
   
   
2. Connection point to the car. It must be remembered that the shorter the connecting part, the faster and more sharply the trailer will react to the movements of the tractor. Depending on the size, it is recommended to make the connecting part 1.5 - 2 meters long. Since this unit bears a considerable load, for welding we use the same profiles that were used to create the frame. Before welding, we take measurements to ensure that the coupling of the connecting part with the trailer is exactly in the middle of the axle. To prevent ruptures of the connecting part, we install safety cables. We weld them at the bottom of the entire structure.
   
3. Coupling. The coupling allows you to attach the connecting part of the trailer to the vehicle. It can be mounted either with bolts or by welding. In the first case, the design will be less reliable, but if dismantling is necessary, the coupling will be easier to remove. In the second, the unit will become very strong, but you will need a gas burner for dismantling. If the choice fell on a connection with bolts, we recommend choosing samples with the eighth strength class. Otherwise, the bolts may not withstand the force.
   
4. Axle assembly. As a general rule, the axle is mounted at a distance of 40% of the length from the rear wall of the trailer. In other words, it should be off-centered a little towards the back. The axle is installed using bolts. Next, we install the frame on the axle and fasten it again with bolts.
   
   
5. It is not an urgent need, but it is advisable to install stabilizing jacks that will ensure the horizontal position of the trailer while driving. The best option is to place jacks on the corners of the frame.
   
6. Flooring and side walls. Wood, tin, metal, polycarbonate, plastic or other materials can be used as the starting material - it all directly depends on what exactly will be transported on the trailer and how often transportation will be carried out. We install the flooring on the frame (you can use the simplest one, made of ordinary plywood) and fix it with bolts. After this, we mount the sides onto the frame. We reinforce the corners of the trailer with metal corners.
   
7. The final stage is finishing. If necessary, we paint parts and assemblies that require such treatment. We draw routes to connect power from the car. Since all trailers must be equipped with mandatory light signaling devices, we install the necessary lights, headlights and reflectors. All this is mounted into a single network and connected through the towbar socket.
   
   

The following video shows the process of assembling and finishing a homemade trailer of an original design.

A homemade trailer, especially if it is well assembled, will significantly increase the capabilities of an ordinary passenger car. Although there are many varieties, a universal option will be suitable for any vehicle and type of cargo transportation. In addition to all the above actions, the trailer can be equipped with a separate braking system, lighting devices, etc., but it is still better to trust these issues to professionals. Before you start using the trailer, you must.