Patent ID: 7364521
Filing Date: 2008-04-29
Classification: A63B,F41B,F42B

Abstract:
1. A sucker for an adhesion arrow comprising: a dome-shaped adhesion portion made of a flexible material having resiliency, the adhesion portion including an adhesion surface having a concave shape and a substantially circular boundary to generate a vacuum when the adhesion surface comes into hermetical contact with a flat surface of a target and an annular projection protruding by a predetermined width and height from the adhesion surface along a position with a predetermined radius from the center of the adhesion surface; a fixing portion extending from a back surface of the adhesion portion; and an inclined surface extending from a boundary of the adhesion surface to a boundary of the back surface such that the diameter of a cross section of the sucker increases to have a shave of a truncated cone, thereby absorbing an impact when the adhesion surface comes into contact with the flat surface.