SUCKER

• Main Author: MAEDA SHUICHI
• Format: Patent
• Language: English
• Published: 21.07.1999
• Edition: 6
• Subjects: BLASTING; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To solve the problem caused by condensed light without condensing due to transmission of light even in the case where a sucker is formed of transparent resin material to be sucked to the surface of a transparent glass or the like by concavely forming the surface opposite to the sucking surface. SOLUTION: A recessed part is formed on a surface 11b of a sucker 11 that is on the side opposite to a sucking surface 11a. A recess 11c forming the recessed part is provided by forming an annular groove in the surface 11b of the sucker 11. The surface 11b on the opposite side to the sucking surface 11a is adapted to form a concave lens by the recess 11c with the sucker 11 sucked to the glass 1. Sunlight 2 incident from the outside of the glass 1 is refracted inside by the projecting part of the sucking surface 11a and refracted outside by the recessed part of the surface 11b on the opposite side, so that even if the light is transmitted through the sucker 11, it will not form a focal point. Accordingly, even if the sucker is fitted to the windshield of a vehicle, there is no risk of reaching a high temperature or causing a fire.