DIY bike trailer for children

Types of bike trailers

A bicycle trailer is an auxiliary vehicle that attaches to the rear of the bike frame. Used to transport anything: cargo, personal belongings and even one-year-old children! This accessory has its supporters and opponents. Some consider the trailer to be almost a mandatory addition, while others can easily do without it, transporting their belongings in a backpack and (or) on the trunk. There are those who hear for the first time about what a bicycle trailer is. Then it’s time to get to know him better.

The designs of “cradles” are different: one- and two-wheeled modifications, universal, cargo and children‘s. A separate niche is occupied by a homemade bicycle trailer. an invention of summer residents and urban fidgets, who often transport goods from place to place. We will tell about all these types of bicycles further.

Bicycle Cargo Trailer

It is worth noting that domestic cyclists quite successfully manage to independently craft a variety of carts for transporting goods on a bicycle. Sometimes cyclists decide to take such a step in order to save money, and sometimes to satisfy their desire. to create something with their own hands. Buy a ready-made structure or make it yourself. everyone must decide for himself.

Kid Engineer: Bike Trailer | Design Squad Global

Wheels

Consider the number of wheels on your bike trailer. You need to start from the purpose and conditions of use of the product (roads, village or city, maneuverability). You can use wheels from old children‘s bicycles or purchase new ones.

This part forms the basis of the entire trailer. For higher reliability, the frame should be made simpler, without complex parts. As a basis, you can take a ready-made scheme, which is full on the Internet and books of the “Do it yourself”.

The drawing is best done by hand in order to have an idea of ​​the design. Cutting metal should be started after repeated checking of all sizes.

Platform

The platform can be built from various materials (board, MDF, metal). It all depends on the conditions and imagination. A platform made of MDF and wood requires preliminary preparation of the metal frame, which is attached to the frame. If the trailer is planned to carry light cargo (tent, sleeping bag, etc.), you can make a platform only from wood.

Cargo bike trailer and its design

bike, trailer, children

Since the bike trailer is designed to carry heavy but small loads, its design must be as strong as possible. But at the same time, the bike trailer must be light and maneuverable. It is also important that in the event of any breakdown, the owner of this device can fix the problem on his own, therefore, the design of a bicycle trailer should be simple and understandable to an ordinary person.

The cargo bike trailer can be either one-piece or a prefabricated structure, additionally equipped with a cover made of waterproof polypropylene. These devices move relative to the axis of the bicycle, thereby ensuring reliability and safety when driving on a dirt country road, even when the trailer is fully loaded.

Cargo trailers can carry up to 50 kg of cargo, and sometimes up to 70 kg. One of the most lifting models is the Y-Frame bike trailer, in which you can transport up to 90 kg, while it itself is lightweight and practical.

The indisputable advantage of bicycle trailers is their convenience during long trips. Ideal for cycling as you can take your essentials with you.

  • two-wheeled;
  • unicycle. Mostly used for tourist travel. The one-wheeled bike trailer is more maneuverable and allows you to drive without problems on narrow paths and paths.

The three basic components of a bicycle trailer are:

  • Frame, which as standard is a structure consisting of oblique fixing plumb lines and an aligned axle for the wheels. The frame of a bicycle trailer must be durable and reliable. As a rule, it is made from aluminum or steel profiles.
  • A platform whose main task is to withstand the load. Most often it is made from plastic, MDF or plywood. When choosing a trailer, the material from which the platform is made should be compared with the weather and road conditions in which the device will be used. For example, some material may become wet from excessive moisture.
  • The system for attaching the trailer to the bike, which is one of the most important parts of the bike trailer. The maneuverability and functionality of the entire device depends on the quality of this component.

There is a wide variety of bike trailer models on the market today. Choosing such an assistant for yourself, you should give preference to already proven and well-known manufacturers. The cargo trailer can be a special purpose (for example, for transporting a surfboard) or universal, some models can be transformed into handcarts, etc.

The main types of bike trailers

One-wheeled and two-wheeled. The first option is, in fact, a wheelbarrow hooked onto the frame. It has low stability, in contrast to its “tractor”: it has two wheels, and the trailer has one. Well suited for transporting small and light loads, otherwise the maneuverability of the bike will deteriorate. Touring models with one wheel can support more weight.

Quick & Easy No-Weld Bicycle Trailer Build

A two-wheeled bike trailer is designed for things heavier than a one-wheeled one. It does not wobble to the sides, but it can skid when cornering. The design itself looks solid, but the area of ​​the bottom of the cart is larger.

Standard bike trailers with two wheels are used for small to medium weights and are called universal trailers. They will perfectly help in the transportation of crops from the dacha, agricultural waste from the site, large-sized, but not heavy items within the city and beyond.

For the transportation of heavy loads up to 100 kg, a special high-strength cargo trailer was invented. The design is durable and unpretentious, however, and requires the appropriate bike. City singlespeed, MTB and hybrid will do. Attaching to the road bike is impractical, because these bikes are not built for transportation, although they have good endurance indicators.

When using a trailer of this type, do not forget that the load should not look out of the body. How profitable is it to use? Do you often have to change the location of bulky items (for example, TV, bricks, boards) within 10. 15 km? Then the cargo bike trailer is just for you.

Make a Bicycle Kart Trailer for Kids. DIY Toys

Especially for transporting small children, they invented bicycle wheelchairs with a frame mount. Not every bicycle has equipped child seats, and the child wants to ride or leave it at home with no one. A bicycle trailer for children will come to the rescue.

  • structural stability;
  • lateral protection against falling out on the go;
  • roof;
  • a lot of free space.

In addition to covered strollers, you can also find outdoor bike trailers on sale. They are usually for older children, from 3 years old. Whether it is worth buying such a trailer is for parents to decide. Although it is much more useful to teach your child to ride a bike yourself.

Bicycle trailer manufacturing process

Building a trailer is not an easy process and requires some preparation. This concerns the selection of the material base and certain knowledge and skills. You will have to work with metal parts. You can use small-diameter pipes available on the farm, or purchase a metal profile.

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Manufacturing steps

  • You should roughly draw the final model of the bike trailer and otherwise build on it. First of all, you need to draw (or at least draw) a diagram of the structure. Calculate all dimensions of parts and places for drilling holes and apply data to the diagram.
  • At the next stage, we cut parts from a metal profile according to the size and drill the necessary holes.
  • We collect the base. We connect the parts with bolts (they can also be welded using a welding machine, followed by grinding the seams). You should get a rectangle. On the long side, we mount additional rectangles into which the wheels will be installed (the width of the rectangles must correspond to the width of the wheel hub).
  • The base must be reinforced with cross members, which are welded or bolted.
  • We prepare and install the seats for the wheels. We cut out four workpieces from the metal plates, in which we drill or cut the grooves for the wheel hub. We weld the blanks to the frame.
  • We collect and weld the sidewalls, which will subsequently be side walls.
  • We make and attach the drawbar. The easiest way to make a drawbar is from two metal profiles (pipes). One is positioned vertically and welded to the frame, the second is horizontal and attached to the upper end of the first pipe. The drawbar height can be adjusted according to the bike being used. A ball joint is attached to the front of the drawbar.
  • At the final stage, we make the bottom and side walls.
  • The seats are attached last if the trailer is passenger.

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How to make a bicycle trailer without welding with your own hands

Today we are talking about bike trailers! On the Internet, you can find dozens, hundreds of articles on similar topics. Therefore, I decided to do my bit, namely to talk about how you can make a unicycle trailer for a bicycle with your own hands. The trailer will be made of aluminum profiles (widely used for making frames for CNC machines). In addition to being lightweight, this model is equipped with shock absorbers for a smoother ride and protection of fragile objects.

It makes no sense to paint everything step by step, describe all the nuts, bolts, etc., since the materials used may not be available in your region, or you can adapt the homemade product to your needs.

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# homemade # instructions # repair_technique # inventions

How to make a bicycle trailer without welding with your own hands

Drawing

To better represent the dimensions of the future trailer, let’s draw the model in a 3D editor. Template

What is a bike trailer for??

At the moment, there are several types of bicycle trailers, which are precisely divided according to the principle of the functions performed:

Bicycle trailers have become widespread in society. This is primarily due to the wide range of functions they perform. These devices help you to transport goods, travel and just enjoy the bike ride with your family.

A great idea how to make a bike trailer with your own hands at home. A trailer to a bicycle is not an interchangeable thing in the country for the transportation of goods of different weights. For example, it is very convenient to use such a trailer for transporting flasks with water.

Necessary materials and tools for manufacturing:. hammer. chisel. adjustable wrench. pliers. Phillips screwdriver. tape measure. boards. metal corners. wire. bolts of different sizes and diameters. rope. bridge. wheels

Step 1: First, let’s assemble the cart frame. When assembling, the bolts do not need to be tightened, we just strengthen the structure with wire. To do this, fasten the wire diagonally with nuts.

Step 2: After assembling the structure, fasten the bridge to the wooden base. For fastening, we use nuts, bolts, and nylon inserts.

Step 3: Next, we will make the central axis of the support. This will require a wider board. So that the boards do not interfere with the movement of the bridge at the ends of the board, it is necessary to make small indentations and fasten with four screws.

Step 4: To assemble the trolley mounts, cut the corners into component parts. Remember their length in the future will depend on the height of the trailer itself. Two parts of the square do not need to be cut to the end, as they need to be bent at an angle and secured with brackets as shown in the photo.

Step 5: Next, you need to make a coupling for fastening. To do this, we cut two pieces of the square and attach them to the structure.

Step 6: attach wheels to the cart.

Step 7: Then we will make a grid on the frame of the cart, if you wish, you can simply put the boards. It all depends on the cargo.

That’s it, your homemade bike trailer is ready.

Before starting, you need to prepare the necessary materials and a basic tool with which the work will actually be done.

  • Steel or aluminum square profile (you can also use a round profile);
  • Metal plates;
  • Bolts with nuts and washers;
  • Ball joint;
  • The required number of wheels, depending on the design;
  • Angle grinder with cutting and grinding disc (popularly. angle grinder);
  • Electric drill;
  • Drills of a diameter commensurate with the bolts;
  • Welding machine (can be rented);
  • Square, tape measure, pencil, marker;
  • A hammer;
  • Bolt wrenches;
  • Gloves and goggles (don’t forget about safety precautions)

Platform

The platform can be built from various materials (board, MDF, metal). It all depends on the conditions and imagination. A platform made of MDF and wood requires preliminary preparation of the metal frame, which is attached to the frame. If the trailer is planned to carry light cargo (tent, sleeping bag, etc.), you can make a platform only from wood.

How to create a bike trailer at home

To create a bicycle trailer with your own hands, you need the following:

  • straight square pipes;
  • corners;
  • four corner pipes;
  • wheels;
  • eight metal plates;
  • a metal sheet;
  • boards;
  • screws, nuts, screws, nails for hammering boards.
  • drill;
  • welding machine;
  • electric jigsaw;
  • spanners.

The first step in creating a trailer frame is to create a dimensional drawing. You need to come up with them in advance, based on your own preferences. In general, the drawing will look like this:

When we have decided on the size and location of all the elements of the future trailer, we start manufacturing it. At the ends of pipes and corners, holes are drilled with a diameter corresponding to the screws.

Important: all holes must be aligned with each other when connecting parts accurately! The numerical dimensions of the distances of the holes from the edges are immediately indicated in the drawing.

So, the rectangle is assembled, the next task is to weld the crossbars to it. For this, pre-prepared pipes are taken, the lengths of which correspond to the width of the rectangle. The optimal number of crossbars is two.

Manufacturing of external protrusions. Using a welding machine, we weld the corner pipes to each other, and then to the sides. The distance between the sidewalls and the outer tubes must match the width of the wheel hubs.

  • Four identical plates are taken.
  • The size of the dropouts is marked on each.
  • Using a jigsaw, grooves are cut to fit the dimensions of the hub bolts of the wheels.
  • Plates are welded to the sides of the trailer frame and outer pipes.

The next step in creating a trailer with your own hands is making the walls from boards, welding the metal bottom and connecting the walls to it. Holes are drilled in the bottom, into which metal corners are fixed with bolts. The distance of the holes from the edges of the bottom is selected in such a way that the corner is on the inner side of the walls. We install a plank rectangle and use self-tapping screws to fix it on the corners. The number of connections of the walls with the bottom is selected based on the size of the trailer, but the more, the better.

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To complete the structure, it remains to make a drawbar, or an element for securing the trailer to the frame. Two pipes and the remaining metal plates are taken. The first pipe. vertical. is screwed to the rectangular frame of the trailer. A hole of a given diameter is drilled in the front part, exactly the same. in a vertical pipe. Then, using a long bolt, we connect both parts.

The horizontal element of the drawbar must be secured to the vertical tube and the bike frame. We take four plates and drill holes in each. Then we weld on the edges of the pipe on both sides. The horizontal part of the drawbar is adjusted to the vertical one, both pipes are firmly fixed with a bolt and a nut. We select the height of the horizontal pipe depending on the bike.

The last thing left to do is attach the trailer to the rear of the frame. The bolt seats are ready, we drive the drawbar with the plates forward and tighten. The trailer is ready. According to this principle, you can also make a trailer for children: higher walls, a seat and a tarpaulin visor.

Attaching the trailer to the bike (drawbar)

The drawbar is undoubtedly one of the most important parts of a bike trailer. Ease of use and maneuverability depend on its design. You can make this element in the form of a triangle that connects to one guide.

The simplest option would be to connect two pipes in series. The guide must ensure the entire structure is in a vertical position.

Direct spotting to the bike frame is most conveniently done in the form of a hinged bracket that is attached to the saddle axis guide. The hinge adds a smooth ride when cornering and does not put additional pressure on the bike frame.

The main types of bike trailers

One-wheeled and two-wheeled. The first option is, in fact, a wheelbarrow hooked onto the frame. It has low stability, in contrast to its “tractor”: it has two wheels, and the trailer has one. Well suited for transporting small and light loads, otherwise the maneuverability of the bike will deteriorate. Touring models with one wheel can support more weight.

A two-wheeled bike trailer is designed for things heavier than a one-wheeled one. It does not wobble to the sides, but it can skid when cornering. The design itself looks solid, but the area of ​​the bottom of the cart is larger.

Standard bike trailers with two wheels are used for small to medium weights and are called universal trailers. They will perfectly help in the transportation of crops from the dacha, agricultural waste from the site, large-sized, but not heavy items within the city and beyond.

For the transportation of heavy loads up to 100 kg, a special high-strength cargo trailer was invented. The design is durable and unpretentious, however, and requires the appropriate bike. City singlespeed, MTB and hybrid will do. Attaching to the road bike is impractical, because these bikes are not built for transportation, although they have good endurance indicators.

When using a trailer of this type, do not forget that the load should not look out of the body. How profitable is it to use? Do you often have to change the location of bulky items (for example, TV, bricks, boards) within 10. 15 km? Then the cargo bike trailer is just for you.

Especially for transporting small children, they invented bicycle wheelchairs with a frame mount. Not every bicycle has equipped child seats, and the child wants to ride or leave it at home with no one. A bicycle trailer for children will come to the rescue.

  • structural stability;
  • lateral protection against falling out on the go;
  • roof;
  • a lot of free space.

In addition to covered strollers, you can also find outdoor bike trailers on sale. They are usually for older children, from 3 years old. Whether it is worth buying such a trailer is for parents to decide. Although it is much more useful to teach your child to ride a bike yourself.

Wheels

Consider the number of wheels on your bike trailer. You need to start from the purpose and conditions of use of the product (roads, village or city, maneuverability). You can use wheels from old children’s bicycles or purchase new ones.

This part forms the basis of the entire trailer. For higher reliability, the frame should be made simpler, without complex parts. As a basis, you can take a ready-made scheme, which is full on the Internet and books of the “Do it yourself”.

The drawing is best done by hand in order to have an idea of ​​the design. Cutting metal should be started after repeated checking of all sizes.

Bicycle trolley device

When it comes to bicycle carts, an equal sign is usually put between them and trailers, but this is not entirely correct. Both of these concepts denote a special device designed for the carriage of goods or passengers, however, there are certain differences in their design. A trailer can only have one wheel, and a cart must have at least two. We can say that every cart is a trailer, but not every trailer is a cart. One-wheeled trailers are used mainly by tourists and travelers for the transportation of luggage, and we are primarily interested in their use for more utilitarian and mundane purposes.

So, a bicycle cart usually has two to four wheels that are attached to a special frame. Such a frame can be made of metal, and in some cases, of wood. Typically, industrial designs use square or round pipes made of steel or aluminum alloys. Wood, due to its low cost and ease of processing, is widely used in the products of home craftsmen.

As a rule, bicycle wheels with spokes are used in the design of trailers, their diameter does not really matter and can be very different. Some models are equipped with solid metal wheels with solid rubber tires, similar to those found on children’s bicycles and hand luggage carts. The axle of each wheel is fixed in the frame separately in special mounting nests, similar to bicycle dropouts. Common axle for wheels is rarely used.

The cart is connected to the bike using a special rigid hitch or drawbar. The attachment points may differ depending on the design of the trailer. The most common are the seatpost, rear axle, chainstays or chainstays, and the trunk. Fixation is carried out using a hinge or coupling. Some models are equipped with a towbar. Many DIYers use chains, ropes, cables and other improvised devices, but such fasteners are unreliable and can be dangerous.

Many trailers are equipped with fenders and mudguards to protect cargo and passengers from dirt and stones flying from under the wheels, as well as shock absorbers.

Advantages and Disadvantages of Bicycle Trailers

But a bicycle trolley is a completely different matter. If you need to transport something, it is attached to an ordinary bike in a matter of minutes, and you can hit the road. After the task is completed, the cart is just as easily detached, and you are free to go wherever you want on your bike. Therefore, cargo bicycles are used mainly for commercial purposes, and in everyday life, a bicycle trailer is much more practical and expedient.

Bicycle carts have a number of other advantages. First of all, it is multifunctionality. There are models of trailers that, by simple manipulations, can be transformed from a loading platform into an ordinary handcart or even a garden wheelbarrow. Some of these attachments easily fit passenger seats, and you end up with a kind of rickshaw. Small footprint is another advantage. In addition, the bike trolley can be collapsible for easy storage and transport. Another plus is the ease of operation, since the basis of the trailer, as a rule, is ordinary bicycle wheels. The maintainability of the structural elements is also very high.

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At the same time, bicycle trailers are not without some disadvantages. Compared to special cargo bikes, they have a significantly lower load capacity and capacity. If for a bicycle truck of 150 kg is far from the limit, then most carts are designed for a maximum of 50-60 kg.

During the movement, the trailer can wiggle from side to side, when cornering it is quite skidding, and the maneuverability of the bike is significantly impaired. Certain restrictions are imposed on the type of bike that acts as a tractor. If you have a road bike, you can immediately discard the thought of transporting goods. You will need something more powerful, with a solid frame and thick wheels. city bike, hybrid or mountain bike. In addition, when driving, the cart is behind, out of your field of vision, and you cannot see what is happening with the cargo or passengers.

Cargo bike trailer and its design

Since the bike trailer is designed to carry heavy but small loads, its design must be as strong as possible. But at the same time, the bike trailer must be light and maneuverable. It is also important that in the event of any breakdown, the owner of this device can fix the problem on his own, therefore, the design of a bicycle trailer should be simple and understandable to an ordinary person.

The cargo bike trailer can be either one-piece or a prefabricated structure, additionally equipped with a cover made of waterproof polypropylene. These devices move relative to the axis of the bicycle, thereby ensuring reliability and safety when driving on a dirt country road, even when the trailer is fully loaded.

Cargo trailers can carry up to 50 kg of cargo, and sometimes up to 70 kg. One of the most lifting models is the Y-Frame bike trailer, in which you can transport up to 90 kg, while it itself is lightweight and practical.

The indisputable advantage of bicycle trailers is their convenience during long trips. Ideal for cycling as you can take your essentials with you.

  • two-wheeled;
  • unicycle. Mostly used for tourist travel. The one-wheeled bike trailer is more maneuverable and allows you to drive without problems on narrow paths and paths.

The three basic components of a bicycle trailer are:

  • Frame, which as standard is a structure consisting of oblique fixing plumb lines and an aligned axle for the wheels. The frame of a bicycle trailer must be durable and reliable. As a rule, it is made from aluminum or steel profiles.
  • A platform whose main task is to withstand the load. Most often it is made from plastic, MDF or plywood. When choosing a trailer, the material from which the platform is made should be compared with the weather and road conditions in which the device will be used. For example, some material may become wet from excessive moisture.
  • The system for attaching the trailer to the bike, which is one of the most important parts of the bike trailer. The maneuverability and functionality of the entire device depends on the quality of this component.

There is a wide variety of bike trailer models on the market today. Choosing such an assistant for yourself, you should give preference to already proven and well-known manufacturers. The cargo trailer can be a special purpose (for example, for transporting a surfboard) or universal, some models can be transformed into handcarts, etc.

Do it yourself

The trailed trolley shown in this step-by-step guide is light, sturdy and very easy to assemble. You will not spend a lot of time on making it, and the result will please you.

To make a bike trailer with your own hands, prepare:

wheels with a diameter of 48 cm with plastic spokes.

Assemble the cart frame. Its general view is shown in the photo. Bolts and nuts should not be tightened at this stage, this will need to be done later. With the help of wire, the frame will need to be strengthened. To do this, secure it with bolts and nuts diagonally.

Attach the bridge to the assembled structure, or rather to its wooden base. To do this, use not just staples, bolts and nuts, but also send a nylon insert to them. It is needed so as not to interfere with the movement of the bridge. Remove the bolt fasteners from the other side of the board, for this, pre-drill holes for them.

The next step is to create a central support axis. This is a wider board that needs to be fixed with four screws. Previously, grooves will need to be made at the ends of the board so that they do not interfere with the movement of the bridge. It is best to keep the cutouts small, gradually deepening them by trying them on. Do not fully tighten the bolts again at this stage.

Cut the corners into pieces to assemble the trolley mount. The length of these parts will depend on the height of the cart itself and on the height of the bike to which it will be attached. You will need to cut the two parts not completely, so that the corners can be bent at an angle. In these places, the structure must be secured and reinforced with transverse small brackets from the same corners. During operation, you can try on the bike mount.

Remove the rubber ring from the wheel caster. Attach a small piece of a corner to the wheel. Its length should leave about 6. 7 cm.This will be the place for attaching the trolley.

By cutting a small part of the corner, and connecting the halves together, as shown in the photo, you will receive a fastening sleeve.

Use nylon rope to weave a net over the frame of the cart. The pattern can be arbitrary, as well as the density of the weaving. Everything here will depend on the size of the goods that you are going to transport on the trolley. Tighten all bolts thoroughly.

The cart is ready. You can now attach it to your bike.

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DIY cargo trailer

The design of the cargo trailer is quite simple and laconic. As a rule, this is a box made of MDF or plywood, in which nothing but the sides of the selected height is mounted.

If you still decide to create a cargo trailer with your own hands, then first you need to prepare materials and create drawings. Fortunately, today on the Internet you can find a lot of drawings of bicycle trailers of different sizes and configurations, and in order to get a device, it is enough to follow the recommendations and carefully select the dimensions.

To connect the trailer to the bike, a metal tube is used, at the end of which there is a special design. a drawbar.

We offer you to watch the video on how to make a bike trailer with your own hands:

Tips for operating cargo bike trailers

In the process of using bicycle trailers, experts recommend adhering to the following rules:

  • Do not overload the trailer. For any cargo trailer, the optimal load should not exceed 50-60kg. Overloading has a negative effect not only on the frame of the bike trailer, but also on the bike itself (tire wear accelerates, rims deform).
  • When traveling with a trailer, take into account the increased dimensions of the vehicle. To feel more confident on the road, it is advisable to make several test drives before a long trip.
  • When paving the route for movement, it is better to choose asphalt or dense dirt roads, since it is very difficult for a trailer to travel on soft and loose soil, as well as uphill.