Folding system
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Book folding system. In pushchairs, this system involves connecting frame parts along a common axis, resembling closing book pages when folded. Despite being somewhat more complex and heavier than umbrella pushchairs, book system offer versatility, suitable for various pushchair types. They work well with both walking seat units and carrycots, accommodate different handle types easily, and significantly reduce height when folded, unlike umbrella structures.
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Umbrella folding system. In the unfolded position, the frame of a pushchair, with its umbrella mechanism, appears as a front wheel support inclined backward, extending to a top handle, and a rear wheel support attached to it, standing vertically. During folding, the rear support pivots at the attachment point and aligns with the front support. Unlike book folding system, the front support remains rigid and doesn't fold independently. Umbrella pushchairs got their name from the handle — which is curved, like an umbrella handle.
The advantages of this type of mechanism are low weight, low cost and quick unfolding/folding. On the other hand, the umbrella structure is not well suited for carrycots, which is why it is used mainly in pushchairs and individual universal models. In addition, curved handles are somewhat less convenient than solid handles (the latter are also found in similar designs, but much less frequently).
Adjustable footrest
The ability
to adjust the position of the footrest, on which the legs of the baby in the pushchair rest.
A similar ability is found in some pushchairs, transformers and pushchairs of universal pushchairs (see "Design"). The footrest itself is an inclined surface attached to the front edge of the seat. Adjustable footrests are those in which the angle of inclination can be adjusted; in many models, this footrest can even be set horizontally. This makes it possible to choose the most comfortable position for the baby's legs in different situations.
Crotch strap
The presence of a separate
crotch strap in the design of the stroller. Only pushchairs with a bumper (see above) are equipped with such a strap: it is located vertically between the legs of a seated kid, preventing him/her from falling out by slipping under the bumper. In general, this design is similar in purpose to
three-point harnesses (see “Harness type”), however, in a stroller with a bumper and crotch strap, the child is usually less crowded. You should pay attention to the presence of this function when buying pushchairs.
Depreciation
The depreciation theme is designed to absorb shocks and bumps from uneven road surfaces. The most popular nowadays are models with
spring systems; you can also meet the shock absorption of the
articulated and
double types, and in quite a large number of pushchairs this function is absent at all. Here are the main features of each option:
— Spring type. Depreciation systems based on classical springs mounted on individual wheels. They are used in all types of pushchairs except classic pushchairs (see "Design"). The simplest models use a single set of springs, while more advanced models may include additional comfort features such as SAS shock/vibration absorption technology. Whatever the case, depreciation systems of this type are simple yet practical, efficient and reliable.
— Articulated type. The type of depreciation used in pushchairs with carrycots - classic, universal, transformers. The frame, on which the carrycot or seat unit is installed, in such models is attached to the base of the pushchair with the help of special bridges, which play the role of depreciation. As bridges can be used belt hinges, such systems can also refer to the articulated. Anyway, this type of depreciation is excellent for carrycots. First of all, the pushchair is as smooth and soft as possible, which contributes to the comfort and deep sleep of the child (and the parent to
...drive the pushchair is much easier, especially on uneven surfaces). Secondly, the carrycot on such a pushchair can be rocked back and forth, lulling the baby. On the other hand, such systems are poorly suited for pushchair frames with swivel front wheels; and the failure of one absorber leads to tilting of the carrycot.
— Double. This term most often refers to the spring systems described above with additional shock absorbers on the frame of the pushchair. Such systems help to maximize vibration reduction and can approach articulated systems in terms of efficiency (see above). On the other hand, the softness of the suspension can be inconvenient when overcoming curbs and other bumps: to raise the front wheels of the pushchair, you have to press hard on the handle.
— Is absent. Pushchairs without depreciation are not suitable for uneven surfaces: in such conditions, the pushchair will be shaken violently, which creates both discomfort for the baby and inconvenience for the parent. On the other hand, such models have advantages over pushchairs with depreciation. First, due to the lack of unnecessary parts, they are much cheaper, and the design itself is as simple as possible and at the same time reliable. Secondly, without depreciation, it is easier to overcome curbs and other obstacles: to raise the front wheels, it is enough to push a small pressure on the handle. Thirdly, such pushchairs rock less on smooth, wave-like uneven surfaces.Carrycot installation
The ability
to install a carrycot on the pushchair — a characteristic basket in which the baby can lie comfortably.
Carrycots are used mainly for very young kids (up to 6 – 8 months), who can not yet sit normally in seat units. And the possibility of installing such an accessory by definition is available in all universal pushchairs (see "Design"). Also, the replacement of the seat unit on the carrycot can be provided in pushchair models. In fact, such pushchairs are also universal – but they are not initially equipped with carrycots, and therefore belong to the category of pushchairs.
Handle type
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Classic. U-shaped handle (or similar), which is a kind of frame. It is slightly less comfortable to hold with two hands than a double handle, but can be comfortably held with one hand.
— Double.
A pair of separate handles without a bridge between them. The handles themselves are usually curved so that the parent's hands resting on them are in the best, most comfortable position. At the same time, double handles should preferably be held with two hands; it is much more difficult to handle them with one hand than with a classic handle. In addition, it should be noted that this option is considered the most suitable for pushchairs (see "Design"), while for pushchairs with a carrycot it is not very suitable.
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Universal. A design that is a combination of the classic and double handle described above. This allows the parent to choose the option depending on the situation: for example, it is more convenient to hold the stroller with two hands by the "horns", and if one hand needs to be free - you can take the single (classic) handle. At the same time, such a choice is not really necessary for everyone, and universal handles are more complicated and expensive than specialized ones, so they are much less common.
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Round. The handlebar can have a different design: in some models it is an oval loop mounted on a long
...bar, in others it is a kind of "steering wheel" on a frame above the hood. Whatever the case, in some models such a handle is a round: it is directly connected to the front wheels, and when you turn the handle, the wheels turn to one side or the other. This noticeably improves maneuverability, but complicates the design and increases its price. However, there are also simpler designs, where the round handlebar differs from the classic handles only in shape. All these nuances should be specified for each model separately.Carrying handle / strap
A carry handle or strap makes it easy to transport or lift the stroller. Typically, the handle is located on the frame of the product and provides a convenient place to grip the stroller when folded. Similar tasks are assigned to the belt - with the only difference that with its help you can usually hang a load on your shoulder or behind your back, freeing your hands.
Double wheels
The presence of
double wheels in the pushchair — when two wheels are installed instead
of one, at a small distance from one another. This somewhat increases the weight and cost, but improves stability, and also has a positive effect on the reliability of the design and patency.
Note that all wheels are not necessarily double wheels - for example, some pushchairs have single front wheels. This is mainly done to reduce the price and weight.
Rear wheels without axle
Pushchairs in which the rear wheels are mounted on completely separate stands, without any additional bridge between them.
The main advantage
of rear wheels without an axle is that the legs of the parent following the stroller do not touch the bridge between the wheels. In addition, this feature slightly increases the mobility (allows the stroller to pass between the wheels lying on the road objects, without clinging to them with the axle).