Amusement devices – Surface or enclosure for athletic or exhibition event
Patent
1996-02-21
1997-09-16
Nguyen, Kien T.
Amusement devices
Surface or enclosure for athletic or exhibition event
52393, A63C 1904
Patent
active
056674449
DESCRIPTION:
BRIEF SUMMARY
OBJECTIVE OF THE INVENTION
The present invention, as the title of these specifications discloses, relates to an improved sports flooring (pavement), that brings several functional and practical advantages over products that exist in today's market.
This new pavement, for indoor applications, uses as main material pressed cork, with the following advantages:
The final product cost is less than the present ones.
It is a highly natural and ecological product because the amount of material necessary is much less than the rest of floorings.
It is an excellent thermic isolator and acoustic corrector.
It provides an optimum isolator of vibrations, as well as a very high mechanical resistance.
Humidity practically does not alter its structure nor its dimensional stability.
It has a high index of incombustibility, as well as a high resistance to chemical agents, parasites and microorganisms.
Its main component, (pressed cork), abounds in Spain, since it is one of the main producing countries.
Its life is considerably greater that other floorings, requiring once installed, minimum maintenance that would be reduced to varnishing and sandpapering processes with a minimum frequency.
A sports flooring must be conceived to be used depending on the sports to be practiced on it. The type of sports and its rules delimitate the characteristics, known as "federal" or "by regulations", such as dimensions, ball bounce, etc.. These requirements are created by the sports normative tradition and the sports accessories used, such as balls, goals, pole, etc. But once these minimal requirements are overcome, it is necessary that the flooring be adapted to a sportsperson, helping to improve his/her yield and protecting the user from possible lesions. The latter ones being the biomechanical characteristics of the pavement.
Of course, there are construction normative requirements regarding durability and maintenance. The proposed pavement is used indoors as in sports halls, for example basketball, football, volleyball etc..
The most important requirement is the vertical bouncing height of the ball.
The most important biomechanical characteristics that should be taken into consideration are impact amortization and friction between shoes and ground.
BACKGROUND ART
At the present time the sports floorings used are those comprising several wood elements, glued, joined, or assembled to each other.
These pavements reach a high price and require cutting a considerable number of trees for their manufacture. Also, wooden pavements are susceptible to the humidity, highly combustible and their biomechanical characteristics, (impact absorption, shoe friction, ground etc.), are not acceptable.
On the other hand, the bouncing of a ball in these kind of pavements rarely reaches 90% of the ball bouncing height that require different federal international organizations.
DESCRIPTION OF THE INVENTION
The improved sports flooring, subject of the invention, overcomes all the previously mentioned inconveniences, constituting a technical solution, with an interesting future expectation because it optimizes ideal specifications that must be taken in consideration to define the quality of a sports flooring with the characteristics in question.
In general terms, the structure of the improved sports flooring disclosed herein, is defined by the combination of a double-panel marine (quality) plywood, multilayer and preferably having 24 millimeters of thickness with agglomerated and pressed panels of cork with approximate 550 kg/m.sup.3 of density, two films of varnish is given to the upper surface and the whole structure of panel and layers is supported by feet made of cork or rubber material that isolate the flooring from the ground.
The cork elements are nailed to one of the marine plywood panel, specifically to the lower one, and the second marine plywood panel is placed adjacent and glued to the first panel with the particularity of having an angled offset of 45.degree.. This combination of panels is rigidly stapled and glued.
After that, a layer of glue
REFERENCES:
patent: 4307879 (1981-12-01), McMahon et al.
patent: 4650180 (1987-03-01), Blondel
patent: 5183438 (1993-02-01), Blom
Nguyen Kien T.
Sanchelima J.
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