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10-06-32 (10-06-32)
 

TECHNICAL DESCRIPTION
OF A SPRING RIDER
MOD. 10-06-32
 The spring Rider consists by to basic components:
• The wooden Parts
• The spring and the base of the spring
The main part of the spring rider consists by two pieces of plywood with a thickness of 18 mm, formed in the shape of an animal, and three metallic pipes Ø ½” with 38 cm length. The three metallic pipes are used to hold together the two pieces of plywood, but also used as hang grips, foothold and back-rest for the user.
A third piece of wood made by plywood with a cleat surface is used as a seat. The seat has dimensions 25X52 and thickness 21 mm approximately. It has the shape of an oblong square and has two semicircles at the opposite ends.  The spring has 40 cm length and it is placed underneath the seat. At the low end of the spring there is a metallic flange Ø 30cm and 1 cm high. Underneath the flange there are placed four metallic ties that used as the embedding bases.
PLYWOOD
The plywood-made parts, which are required for our structures are at least 20 mm thick and are made of wood sheets each 1,5 mm thick, being welded between each other, by way of thermo-welding process under pressure, using resins of phenol base, non-toxic. They are dyed with water-dissoluble paints, in which no sealing compounds have been added, nor any diluting items or dyes, which contain lead, chrome, cadmium or other heavy duty metals. The paints also offer high resistance under adverse weather conditions.   
The above sheets of plywood are in conformity with standards ΕΝ 314-2.
The quality of the plywood is such that no further processing is required prior to the dyeing process, such as application of putty. 
PLASTIC ELEMENTS
The plastic elements that are required for the manufacture of equipment are highly resistant to the ultra violet radiation and in unfavourable weather conditions. The preferred materials are those which can be recycled such as the polyethylene (ΡΕ) or the polypropylene (ΡΡ). In particular, all the bolts, which stand out of the equipment by more than 5 mm, are covered with plastic plugs of propylene   (ΡΡ). Also, they are harmless for the safety and the health of the children.  
METAL ELEMENTS
The metal elements that are used for the manufacture of equipment (screws, contacts etc) are manufactured from thermo-galvanised steel (with zinc), electro-galvanised, in which the surface has been previously prepared with sandblast or stainless (stainless steel). The dimensions and the cross sections of the metallic elements are sufficient to accommodate (with the suitable safety coefficient) the loads for which they have been studied to resist corrosion and adverse weather conditions. 
PAINTS
The varnishes and the paints with which the wooden parts are protected, have been specifically studied for the climatic conditions of our country (temperature changes, open or closed spaces etc), are entirely harmless for the users (they contain no lead, chrome or cadmium or any other heavy metals) and they give a high resistance in our structures. 
EMBEDDING
The embedding of the equipments calls for the following procedure: 
At this point in which the pillar is to be fitted, a pit is opened up in the form of truncated cone, 80cm deep approximately, and 60cm in diameter. Afterwards, after the pillar is fitted inside it, the pit is filled up with concrete until it reaches 20cm. from the level of the ground, where it is covered with the ground. 
Only the embedding irons are embedded in the ground, which keep down every pillar at a distance of at least 10 cm. from the ground, in order to prevent the corrosion of the wood due the humidity of the ground. 
All the procedures of the production works for processing the raw materials are carried out in conformity with  
• The standards ΕΝ 1176 1-6,
• the system of quality ISO 9001 : 2000
• and system of environmental management ISO 14001 : 2004

 
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