Modular construction system, construction element, coupling element, end element and tool for use in such a construction system

Abstract

The invention relates to a modular construction system, comprising at least two construction elements and a coupling element, wherein: the coupling element comprises a body with two surfaces which are each provided with coupling means, wherein the coupling means of at least one surface comprise a ring of resiliently pivotable lips provided with locking protrusions; at least one of the two construction elements comprises an opening for receiving the lips of the coupling element; the lips are adapted to displace inward in order to release the connection between the coupling element and the construction element; and the plate-like body of the coupling element comprises an opening which is provided with resiliently pivotable tongues extending radially inward which are connected to the lips, wherein the tongues are displaced out of the plane of the plate-like body by a force being exerted thereon, such that due to displacement of the tongues the lips are displaced inward.

1 . Tool for use with a modular construction system, the tool comprising a body provided with at least one pin-like body which is adapted to displace tongues of an opening of a plate-like body of a coupling element out of the plane of the plate-like body, at least close to first outer ends of the tongues. 
     
     
         2 . Tool as claimed in  claim 1 , wherein the pin-like body extends at an angle from the body, the angle lying between 0 and 90°. 
     
     
         3 . Tool as claimed in  claim 1 , wherein the tool comprises a displaceable flange extending round the pin-like body, the flange being displaceable between a first position, in which the flange is smaller than the diameter of the opening of the construction element, and a second position in which the flange is larger than the diameter of the opening of the construction element, wherein the pin-like body is displaceable between the first position, in which the pin-like body extends with a first determined length from the body, and a second position in which the pin-like body extends with a second determined length from the body, the second determined length being greater than the first determined length, and wherein the pin-like body is in respectively the first or the second position when the flange is in respectively the first or the second position.