Binding band unit of electric wire passing guide

A binding band unit of a gutter shape electric wire passing guide, comprising;

• a hole, through which a binding band is inserted, arranged through at the electric wire passing guide;
• and
• a widening width guide groove arranged at an inner surface of the electric wire passing guide so as to expand its width gradually from the hole toward an opening end of one sidewall of the electric wire passing guide for guiding the binding band,
• wherein a tip end of the binding band is inserted from the guide groove into the hole in a condition that a plurality of electric wires is inserted into the electric wire passing guide,
• wherein the hole is provided in a step formed by one side of the electric wire passing guide and an other side opposite to the one side of the electric wire passing guide, and the tip end of the binding band passes through the hole, and
• wherein one side surface of the guide groove near to an open end of a projecting top of the electric wire passing guide is inclined toward the projecting top from a bottom surface of the guide groove to the inner surface of the electric wire passing guide.