Composite moldboard unit for countertop

Abstract

A composite moldboard unit includes a main portion and a buckle structure. The main portion has a horizontal side and a vertical side. An engagement rabbet and an edge are formed at the lower end of the vertical side. The buckle structure is a substantially arc-shaped barricade portion. A button block is formed at the lower end of the barricade portion and may engage with the engagement rabbet. A space may be formed by and between the barricade portion and the main portion and may hold cementing material. In addition, the barricade portion in various types of shape can be used to generate different patterns. Also, the composite moldboard unit of the present invention has a smaller size or volume and hence the packaging, transport and storage of it would be easier and less costly. As a result, the overall production cost is reduced.

What is claimed is: 
     
         1 . A composite moldboard unit for countertop, comprising:
 a main portion, having a horizontal side and a vertical side, wherein an engagement rabbet, which has a specific shape, and an edge are formed at the lower end of the vertical side; and   a buckle structure, which is a substantially arc-shaped barricade portion, wherein a button block is formed at the lower end of the barricade portion and may engage with the engagement rabbet, and wherein a space may be formed by and between the barricade portion and the main portion, and may hold cementing material.   
     
     
         2 . The composite moldboard unit as in  claim 1 , wherein an indented portion may be provided on the inner side of the lower end of the main portion so that the lower portion may be bent and detached more easily. 
     
     
         3 . The composite moldboard unit as in  claim 1 , wherein a bearing surface portion is additionally provided on the vertical side of the main portion and a turning juncture is formed at the juncture of the vertical side and the bearing surface portion, and wherein an engagement rabbet, which has a specific shape, and an edge are provided on the lower portion of the vertical side. 
     
     
         4 . The composite moldboard unit as in  claim 3 , wherein an indented portion may be provided on the inner side of the lower end of the main portion so that the lower portion may be bent and detached more easily. 
     
     
         5 . The composite moldboard unit as in  claim 3 , wherein a rectangular male positioning portion is provided on the bearing surface portion of the main portion. 
     
     
         6 . The composite moldboard unit as in  claim 1 , wherein a connective portion extends from the barricade portion, and wherein a button block, which extends upwards, is formed at the lower end of the connective portion and may engage with the engagement rabbet of the main portion. 
     
     
         7 . The composite moldboard unit as in  claim 6 , wherein a female positioning portion is provided on the lower side the connective portion of the buckle structure.