Constructional building set comprising building elements for blind person, and such building elements

Abstract

A building element for a building constructional set comprising top face, a plurality of side walls extending downwardly from the top face, a plurality of coupling studs which are arranged on the top face in a two-dimensional periodical pattern, a plurality of cavities arranged in a two-dimensional periodical pattern between the side walls to receive the coupling studs in frictional engagement and at least one color indicator which is in form of spatially distributed raised points of the same shape and is part of the building element for the purpose of indicating the color of at least one surface area of the building element. Different spatially distribution of raised points of the same shape indicates different colors. The color indicator may also represents the type/strength of shade of the color of at least one surface area of the building element. The color indicator may be positioned on more than one side walls of the said building element allowing the perception of the color when color indicator on other walls is not visible. The building element may also include boundaries to indicate the color of a specific area on the surface of the building element. A color map on the external surface of the building elements, may provide color information for surface areas of the building elements which do not have enough space to accommodate a color indicator.

1 . A building element for a constructional building set comprising:
 a. a top face.   b. a plurality of side walls extending downwardly from the top face.   c. a plurality of coupling studs which are arranged in a two-dimensional periodical pattern on the top face   d. a plurality of cavities arranged in a two-dimensional periodical pattern between the side walls to receive the coupling studs in frictional engagement   e. at least one color indictor which is positioned on the external surface of the said building element and indicates the color of at least one surface area of the building element   
   
   
       2 . A building element according to  claim 1 , characterized in that the outer boundaries of the top plan view of the said building element are within the standard dimension of the building element; wherein standard dimension of the said element is defined as outer boundaries of an area which is union of standard cell areas for all those coupling studs which are arranged in two-dimensional periodic pattern on the top face of a base plate and overlap fully or partially with area that is bounded by the outer boundary of top view of the said building element when the said building element is frictionally engaged with the said base plate and said base plate has a size larger than outer boundaries of top view of the said building element; also wherein a standard cell area of said coupling stud/cavity is a squared area with each side of size d where d is the minimum distance between centers of adjacent said coupling studs/cavities existing in the same two-dimensional plane. 
   
   
       3 . A building element according to  claim 1 , wherein same color indicator is positioned on more than one side walls of the said building element. 
   
   
       4 . A building element according to  claim 1 , wherein the color indicator is at least one Braille character. 
   
   
       5 . A building element according to  claim 1 , wherein the color indicator represents a binary string. 
   
   
       6 . A building element according to  claim 1 , wherein color indicator also represent the type or strength of a color. 
   
   
       7 . A building element according to  claim 1 , wherein said multiple color indicators ae combined to represent a new color. 
   
   
       8 . A building element according to  claim 1 , wherein top face area of the said building element is comprised of multiple subareas. 
   
   
       9 . A building element according to  claim 1 , wherein the said cavities to accommodate said coupling studs are positioned in different subareas. 
   
   
       10 . A building element according to  claim 1 , wherein said building element has boundaries to indicate the area that is represented by the said color indicator. 
   
   
       11 . A building element according to  claim 1 , wherein it has a color map which includes the indictor of at least one subarea and its color information. 
   
   
       13 . A building element according to  claim 8 , wherein a reference point is positioned on the external surface of the said building element and to facilitate locating position of the color indicator. 
   
   
       14 . A construction building set containing at least one building element according to  claim 1 . 
   
   
       15 . A construction building set according to  claim 13 , wherein said construction building set contains a literature which includes the information about different distribution of spatially raised points and what they represent.