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10-07-04 (10-07-04)
 

TECHNICAL DESCRIPTION
OF A COMPOSITE STRUCTURE
MOD. 10-07-04
The overall dimensions of the composite structure are 601 Χ 174 cm by 332 high and it comprises:
• 1 square deck 92 cm height with square roof
• 1 square deck 92 cm height with arch roof
• 1 wavy slide 92 cm
• 1 wooden stair 92 cm
• 1 hood
• Safety panels
• 1 tunnel polyethylene straight
• 1 snake climbing
• 2 safety handgrips
• 1 square plastic roof
• 1 plastic roof arch
• plugs for turn backs
• Bedding bases

Square  tower 92 cm high with square roof.
The tower is overall dimensioned 111,5X111,5X332 cm and it comprises of:
• 4 wooden pillars dimensioned 9Χ9 cm. and 272 cm high.
• 1 pieces of plywood Wireness (antislip) who’s the upper side is covered with dark brown antislip surface. The dimensions of each piece are 99X99 cm. And the thickness is 21mm. as the deck’s floor.
• 1 plastic roof
Square  tower 92 cm high with arch roof.
The tower is overall dimensioned 111,5 X 111,5 X 332 cm and it comprises of:
• 4 wooden pillars dimensioned 9Χ9 cm. and 272 cm high.
• 1 pieces of plywood Wireness (antislip) who’s the upper side is covered with dark brown antislip surface. The dimensions of each piece are 99X99 cm. And the thickness is 21mm. as the deck’s floor.
• 1 plastic roof with form of arch
LADDER FOR THE DECK 92 cm. HIGH(for ages of 3 years or more)
The ladder for deck 92 cm high is sized 93Χ172 cm and the length the edge from the closer point of the tower is 94 cm long. It consists of:
• 2 pieces of wood dimensioned 4,5Χ20Χ135cm.
• 5 pieces of wood dimensioned 4,5Χ20Χ88 cm.
• 5 pieces of wood dimensioned 4,5Χ6Χ84,5 cm.
The handrail of the ladder for a tower 122 cm consists of :
• 4 pieces of wood with bent ends dimensioned 4,5Χ9Χ90 cm.
• 2 piece of wood with bent ends sized 4,5Χ9Χ130 cm.
• 2 pieces of plywood that are used to cover the space between the 4,5X9X130 cm. wood and the stairs
In-between the two pieces of wood dimensioned 20Χ135 cm are fitted the 5 pieces of wood, dimensioned 4,5Χ6Χ84,5 cm at distances of 20 cm. On top of them are fitted all 5 woods dimensioned 4,5Χ20Χ88 cm as toe-holds.
The handrail is made as follows: The 2 pieces of wood dimensioned 4,5Χ9Χ130 cm are fitted at each row, horizontally, and underneath of them are bolted, vertically, the four ones dimensioned 4,5Χ9Χ90 cm 2 in each row.

WAVY STRAIGHT SLIDE FOR DECK 92 cm.
The wave straight line slide chute is 92 cm high.
It is made with the method of the rotary infusion, being moulded within forming dies.   It is moulded by linear, low density polyethylene with stabilizers against the ultra violet radiation and providing antistatic (of static electricity) protection.  
The paint to be applied each time, which is non-acid, is added with the rotary infusion of the forming dies. It is in one-piece and is also fitted with a one-piece protection cover made of the same material, to avoid any falls. Such materials comply with:  
• ASTM - D - 790 Flex Modulus 
• ASTM - D - 638 Tensile Strength 
• ASTM - D - 648  Heat Distortion Temperature 
• ARM - STD  Low Temperature Impact
The diameter of the panels must be at least 6 mm thick.
Exceptions, if any, must be stated.
ASTM = the American Society for Testing and Material
The American Materials Testing Service.  
HOOD
The hood of the chute obliges the children to leave in a seating position, to prevent accidents.  
It is 105 cm high and 87 cm wide.
It is made with the method of the rotary infusion moulded in forming dies.  It is moulded from linear low density polyethylene with stabilizers against the ultra violet radiation, providing antistatic (of static electricity) protection.
The paint to be applied each time, which is non-acid, is added with the rotary infusion of the forming dies.  
They will comply with the :
• ASTM - D - 790 (Flex Modulus )
• ASTM - D - 638 (Tensile Strength)
• ASTM - D - 648  Heat Distortion Temperature 
• ARM - STD (Low Temperature Impact
ASTM = the American Society for Testing and Material
The American Materials Testing Service.  
SAFETY TYPE HANDGRIPS
The safety type handgrips are metallic, of electrostatic dyeing, of vertical lining up, two in a row, with the inner one being bent on the top side. It is provided with a metallic support blade on its lower part and a support point on the upper part. They are made of pipe Φ 32 mm. 80 cm high, and tolerances are provided between them in conformity with ΕΝ 1176. After they are processed for their degreasing, they are coated with polyzinc and then they are subjected to electrostatic dyeing with powder.  
The handgrips of safety type are fitted at those points of the lofts in which no entrance/exit protective panels, rails etc are fitted  
PROTECTIVE PANEL
The hood is sized 93,5Χ97,5Χ7 cm. And it consists of :
• 2 pcs of wood dimensioned 4Χ7Χ96 cm.
• 1 pc of plywood dimensioned  85,5Χ90Χ2 cm.
Between the two wooden pillars dimensioned 4Χ7Χ96 cm., at a height of 8 cm from their base, is placed the ply wood. The protective panel is place on the free from activities side of the tower to protect kids from falling, in conformity with the  ΕΝ 1176.
Tunnel of polyethylene straight
The tunnel is 100 cm. long and it has an inner opening Ø770 mm. It is provided with two panels, which are used to steady it at the wooden pillars of decks.
It is made with the method of the rotary infusion moulded in forming dies.  It is moulded from linear low density polyethylene with stabilizers against the ultra violet radiation and they provide antistatic (of static electricity) protection.
METALLIC CLIMB "SNAKE"(for a deck 92 cm high.)
The snake is sized 100Χ58Χ260 cm. and it consists of:
• 1 galvanized hot rolled plate, with a cross section of Ø 32 mm., 3 mm thick and  300 cm high.
• 4 galvanized hot rolled plates, with a cross section of Ø 32 mm.  3 mm thick in a semicircular form.
• 1 galvanized hot rolled plate, in the form of an elliptical "Π", with a cross section of Φ 32 mm. 3 mm thick, sized 93,5Χ100 cm.
On the plate 300 cm high are welded the plates of semicircular form, starting from a height of 40 cm. and are used as stairs.  They are applied in such a way as to leave a clearance of 31,5Χ28 cm. , to avoid trapping children.  On top of the vertical plate is applied the plate of elliptical form  "Π".
SQUARE PLASTIC ROOF
The square cover is dimensioned 122Χ122 cm., distance from the centre of the hole  1015 mm long. and 700 mm high.
The cover is made with the method of the rotary infusion moulded in forming dies.  It is moulded from linear low density polyethylene with stabilizers against the ultra violet radiation and they provide antistatic (of static electricity) protection.
The paint applied every time, which is non-acid, is added with the rotary infusion of the forming dies.  
They will comply with the:
• ASTM - D - 790  Flex Modulus 
• ASTM - D - 638  Tensile Strength 
• ASTM - D - 648  Heat Distortion Temperature 
• ARM - STD  Low Temperature Impact
ASTM = the American Society for Testing and Material
The American Materials Testing Service.  
ARCH PLASTIC ROOF
The arch plastic roof is placed in the upper side of two deck pillars.
The cover is made with the method of the rotary infusion moulded in forming dies.  It is moulded from linear low density polyethylene with stabilizers against the ultra violet radiation and they provide antistatic (of static electricity) protection.
The paint applied every time, which is non-acid, is added with the rotary infusion of the forming dies.  
They will comply with the:
• ASTM - D - 790  Flex Modulus 
• ASTM - D - 638  Tensile Strength 
• ASTM - D - 648  Heat Distortion Temperature 
• ARM - STD  Low Temperature Impact
ASTM = the American Society for Testing and Material
The American Materials Testing Service.  


EMBEDDING BASES
In order to embed the structure into the ground, the pillar is fitted with a pair of embedding bases. 
The embedding bases consist of two metallic galvanized plates which are then dyed with electrostatic dyeing process, are «Π» shaped and dimensioned 100Χ12Χ4cm, 0,5cm thick., “embracing” the pillar; they are linked together with through bolts  5/8Χ15. Their lower part is fitted with a metallic flange to retain them within the concrete-made pit.  
Only the embedding irons are embedded in the ground; the former hold down the pillar at a distance of at least 5cm. above the ground, in order to prevent corrosion of the wood due to the humidity of the ground. 
TIMBER
The wood which is used for the equipments is a composite non-stick wood of pine tree, Swedish type, in conformity with   ΕΝ 351. It is made with a special union (welding of woods) at various cross sections, depending on the use it is intended for.  
The COMPOSITE WOOD is by 40% more powerful than the wholesome wood. Its strength is 360 kp/m2 and its special weight is around 480 kg/m3.
 It contains approximately 15% humidity
 It contains minimum juices (resin) as compared with the other trees of the family of pine tree of the other countries (weather conditions in the Northern Sweden up to   -25 ο )
 Its thermal conductivity is  s=0,10 Kcal/Mho and its sound insulation is  3.5 times higher than that of the concrete or brickwork of equal thickness. 
 It has anti-magnetic qualities and it is non-conductor of the electric current. 
 It is resistant to fire and it ranks in the classes of  F30 and F60 (as per DIN  4120) depending on its cross section.
 When the outer part of the cross section is burned, the inner part is protected and retains its strength. 
 It can be processed in the same way as the wood which is sold in the market. 
 It maintains its form and is hard to deform or to crack. 
 The annual rings of the wood are usually vertical to their big side with a significant increase of the mechanical strength of this surface,   should it be applied on floors. 
All the angles (edges) of woods are shaved in the radial sense   5 mm. at least.
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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