The importance of children playground equipment belts
The role of the seat belt is self-evident , since its birth , I do not know how to save a person's life , and now, more than just basic protection measures on the vehicle seat belt , can be seen in many places in its presence , such as: large leisure and entertainment facilities, a small children's play equipment and so on.
Why should children's play equipment designed seat belt device it? First to note is that it is not a decorative design to the train tracks , turn the horse , for example, the sudden shutdown during operation , the inertia of the servant 's body out of control , it is prone to accidents. With such a seatbelt device , such problems can be avoided , it can be said , a guarantor of safety belts is the last umbrella !
But the importance of seat belts on children's play equipment but did not attach importance to everyone , and in many toddler playgrounds together, you can see a lot of small players , as the seat belt as nothing , and even parents are not very concerned about this ! Security awareness training children can not be ignored , parents should do oversight. Even small children's play equipment , as long as the design of such a device , it certainly has its role , importance should take advantage of it .
Finally , to say that in order to attract the child's attention , shape beautiful natural playground equipment is critical , but not because it ignores the practical beautiful and practical in the player's personal experience is very important. Only players feel comfortable stimulation , will seek happiness and repetitive stimulation .

Plastic runway epoch-making revolution

Human hundred meters result ran into 10 seconds for the first time, is in the 1968 Olympics in Mexico. Plateau air is thin to improve performance, but Jim hines created a world record of 9.95 seconds is the most important reason, is a comprehensive university city stadium for the first time laying Plastic toys runway. Since then the Olympic Tian Jingshi changed "everything changed. Plastic runway is also called "tower when the runway," made of polyurethane materials. In 1937, German chemist bayer found that the polymerization of isocyanate with hydrogen, the polyurethane has introduced the modern chemical industry from now on. This kind of composite material of many performance is better than that of natural rubber and plastic, regardless of the strength, hardness, elasticity adjustable range is wider, become the latest must-haves in the architecture of the moment. In 1961, 3 m, Minnesota laid the first 200 meters polyurethane runway, but it is used for racing. Used for polyurethane runway started in 1963 and immediately to the attention of the national track and field competition, the international Olympic committee (ioc) officially acknowledged soon this "new", Mexico after the Olympic Games, plastic runway become the essential facilities for the international track and field games.
The thickness of the plastic runway about 13 cm, the structure is very like a piece of table tennis racquet ZhengJiao sponge. Runway flat blank as table tennis, a solid foundation in the middle of the plastic layer like a sponge, friction layer on the surface of the colloidal particle is equivalent to table tennis. Athletes run in such a large area of "sponge" on, can effectively reduce the shock when landing, stretching back to get jungle playground deformation potential energy feedback by the thrust, thus greatly increase the efficiency of running. Fast, smooth and uniform on the surface of the runway, but also to give full play to the standard technique that is besides sprinting, hurdling, middle-distance race, all projects associated with the approach such as the high jump, long jump, javelin result for all plastic runway and the advent of "a rising tide lifts all boats". In addition, the plastic runway regardless of winter and summer and the weather "nature do not change" all-weather advantages, wear resistant, oil resistant, resistant to radiation commendable, is pleasing to the eye sight, spirits of bright-coloured colour, athletes fell after the safety degree, is can't be matched by any other track.
Plastic runway production and laying technology continuously improve today, all plastic type, mixed type, grain type, coil type of flowers, for glory and texts, already from the stadium has been laid in the school playground.