Title:
LIGHTWEIGHT RUBBER BLOCK
Document Type and Number:
WIPO Patent Application WO/2011/142563
Kind Code:
A2
Abstract:
The present invention relates to a lightweight rubber block; and more specifically, to a lightweight rubber block featuring a reduced total weight, tight fit and improved water permeability. The lightweight rubber block of the present invention comprises: a base plate made from a porous synthetic resin, the base plate having a plurality of assembly holes arranged equidistantly in row and columns, and a plurality of top blocks made from a synthetic resin material, each top block being resilient and having a screw nail fastened to the bottom thereof to pass through the corresponding assembly hole so as to fix the top block on top of the base plate. There is a gap between the top blocks to receive sand or soil. At least one weight-reducing conical shaped groove with an open bottom is formed within the top block, and a central weight-reducing groove with an open bottom is formed at a central bottom area of the top block, with the central weight-reducing groove having a smaller height than the conical shaped groove. The top block and the base plate are each formed, by grinding a waste tire and waste rubber chips to a uniform particle size and mixing with a pigment of a particular color using a mixer; or mixing primary color EPDM chips, PU chips and ground chips together with an urethane bond that is used as a mixed power adhesive, and then introducing any of the resulting mixtures into a mould to subject the mixture to a thermal compressing operation by a press at a given temperature for a certain period of time. Those chips constituting the base plate have a larger particle size than those chips constituting the top block such that a void formed by the top block is larger than a void formed by the base plate, thereby making the unit area of the top block heavier than the unit area of the base plate. The upper perimeter of each top block is in the form of a rectangular or square shape.
Inventors:
KIM, Ji Hoon (1304, Geumpo-ri Nongong-eup, Dalseong-gun, Daegu 711-851, 711-851, KR)
Application Number:
KR2011/003432
Publication Date:
November 17, 2011
Filing Date:
May 09, 2011
Export Citation:
Assignee:
PUSUNG RECYCLING CO., LTD. (1307, Geumpo-ri Nongong-eup, Dalseong-gun, Daegu 711-851, 711-851, KR)
(주) 부성 리싸이클링 (대구광역시 달성군 논공읍 금포리 1307, 711-851 Daegu, 711-851, KR)
(주) 부성 리싸이클링 (대구광역시 달성군 논공읍 금포리 1307, 711-851 Daegu, 711-851, KR)
International Classes:
E01C5/18; E01C13/04
Attorney, Agent or Firm:
JI, Jeong hun (2F/B, Twins building204-13, Jamsil-dong, Songpa-gu, Seoul 138-220, 138-220, KR)
Claims: