초록 ▼

A weed control plate (1) installed at the root of one of supports of various kinds so as to cover the ground around the root to prevent the propagation of weeds. The weed control plate (1) is a thin plate having a conical surface. The plate is provided in the center thereof with an opening (11) for

A weed control plate (1) installed at the root of one of supports of various kinds so as to cover the ground around the root to prevent the propagation of weeds. The weed control plate (1) is a thin plate having a conical surface. The plate is provided in the center thereof with an opening (11) for passing the support. The plate has a single parting line (13) extending from the outer periphery to the inner periphery of the plate. Two edges of the plate which are divided by the parting line (13) are fastened so as to join together with bolts (30) and nuts (31), thereby firmly fastening the inner peripheral surface of the opening (11) to the outer periphery of the support. The conical surface (10) is curved convexly upward toward radially inward of the plate. The inner peripheral surface of the opening (11) has a curved surface (25) projecting inward over approximately the entire circumference.

대표청구항 ▼

[ What is claimed is:] [1.]1. A weed control plate, installed at a root of one of supports of various kinds so as to cover the ground around said root to prevent propagation of weeds, comprising:a thin plate having a conical surface, said plate being provided in a center thereof with an opening for

[ What is claimed is:] [1.]1. A weed control plate, installed at a root of one of supports of various kinds so as to cover the ground around said root to prevent propagation of weeds, comprising:a thin plate having a conical surface, said plate being provided in a center thereof with an opening for passing the support, said plate having a single parting line extending from an outer periphery to an inner periphery of said plate,wherein said conical surface is curved convexly upward toward radially inward of said plate,wherein two edges of said plate which are divided by said parting line are fastened so as to join together with a clamping member, thereby firmly fastening an inner peripheral surface of said opening to an outer periphery of said support, andwherein said plate is provided with a cylindrical fastening portion having therein a cut-out portion, each side edge of said cut-out portion being formed into an approximately circular-arc shape.