| 摘要 |
PURPOSE:To prevent intrusion of water drops, dust, etc. by equipping a drafty member with a continuous porous sheet, a drafty reinforcing sheet affixed to the side face of this sheet, and waterproof part in the form of soft cylinder only in the peripheries of the two sheets. CONSTITUTION:A drafty member 13 is composed of a continuous porous sheet 14, a drafty reinforcing sheet 15, which is in the form of a disc having the same dia. as the sheet 14 and is affixed to the side face thereof, and a waterproof member 16 in the form of soft cylinder made by insert formation so that only the peripheries of the two sheets 14, 15 are embedded. The member thus formed 13 is pressure fitted into a wall 12 in cylindrical form with the sheet 15 facing outward and the surrounding of a vent hole 11 in the bottom of the wall 12 and a member 16 outside the inner wall of the wall 12 are in pressure contact. Thereby in this lighting fixture 1 for car concerned the inner part of a light chamber 4 and the outer air are in communication through the mentioned member 13 blocking the vent hole 11 to bring about the same pressure to the inner part of the light chamber 4 and the outer air, which prevents the inspiraiting action, and the characteristic of the member 13 prevents intrusion of water drops and dust into the light chamber 4. |
