Training wheels

Wheel is a term used in vehicle technology. Supporting the wheels are normally auxiliary wheels that are not in use for regular movement of a vehicle. They are designed to prevent the vehicle from falling down or cause a vehicle is supported on the stand. To distinguish them, the safety wheels - the anti - tip to persons wheelchairs against the post- back - tilting when driving uphill.

Ground vehicles

Training wheels can be found - often one per side - on the following vehicles:

• For small bikes for children, devised to avoid the upset when learning of cycling. The pedagogical value is considered controversial because the risk of falling on the pavement edge and gutters is great. Since about 2000, so-called wheels for children from 2 years are available, the kids legs take over the support effect.
• Spring-loaded wheels of therapy for people with balance or movement disorders.
• In other single-track vehicles, to avoid falling over in the state (See Ecomobile ).
• On semi-trailers of articulated vehicles to allow the state the uncoupling means of the supports.
• At drawbars of single-axle trailers such as caravans and goods trailers, to keep the trailer in the state and uncoupled in balance.
• Snow plows have - behind the plow edge - to improve training wheels or skids to the ground- performing. Even larger, side- sloping Handschneepflüge there with 2 wheels, build a cornering force to gather the snow along a path by riding perpendicular to one side.
• In agricultural implements (for example, a plow ) the working depth is often determined on a wheel ( jockey wheel ).

Wheels on children's bikes are securely mounted next to the rear wheel; in a small side slope ( or unevenness in the ground ) put them on. On other types of vehicles they are movable or adjustable attached or (in the case Ecomobile ) at the end of swing-out support arms.

Glider

Gliders know various training wheels:

• Small under the wing tips to support a tilting wing to the ground during the landing roll-out at the last.
• Self Bootable motor glider with training wheels of 15 cm diameter at folding props under the wings Facial need at start is not revolving helpers who would otherwise need to keep the wing tips until they reach about 20 km / h horizontally. Roll the glider horizontally are both training wheels about 15 cm above the ground.
• For towing, even larger sailors on the ground without assistance, a support wheel is clamped at about 50 cm diameter at only one wing, under the weight of the sailors also something coming to this side and supported. Front carries the central main landing gear the brunt. In the area of ​​small deflectable rear wheel a Kuller is mounted, can be tightened so that even curvy solely by the train by pulling rod on the towing hook of the sailors and even rotated about its vertical axis.

Other applications

• Training wheels can support wide cantilevered sliding, swing and folding gates.
• There are rolling kicks and stepladders, whose roles are for unloaded method of climbing and deflect under load. The climber is then fixed on the legs in addition to the roles. The support wheels larger scaffolds are placed high or low by means of screw or lever mechanism.
• The uppermost part of a rope ladder rolled using two support wheels the house facade up.
• Supporting roles of office chairs roll easily under load, but slow down the unloaded chair slightly.

• Chassis Technology