Air-conditioning duct

• US 20090042503A1
• Filed: 07/30/2008
• Published: 02/12/2009
• Est. Priority Date: 07/31/2007
• Status: Active Grant

• Current Assignee: Inoac Corporation (Inoue Rubber Public Company Limited), Kyoraku Co.,Ltd., Toyota Shatai Kabusiki Kaisha
• Original Assignee: Inoac Corporation (Inoue Rubber Public Company Limited), Kyoraku Co.,Ltd., Toyota Shatai Kabusiki Kaisha
• Inventors: Matsumoto, Hidetoshi, Kamigashima, Hayato, Ichimura, Nobuhiro, Tani, Naoto
• Granted Patent: US 8,801,511 B2
• Time in Patent Office: Days
• US Class Current: 454/156
• CPC Class Codes: B60H 1/00564 of air ducts
• CPC Class Codes: F24F 13/0209 characterised by their connecting means, e.g. flanges

Abstract

An air-conditioning duct for vehicles with one duct mutually connected and fixed to other duct, wherein one duct is formed by incorporating a first unit duct with a flange formed around an opening periphery thereof and a second unit duct with a flange formed around an opening periphery thereof in parallel, other duct is formed by incorporating a third unit duct with a flange formed around an opening periphery thereof and a fourth unit duct with a flange formed around an opening periphery thereof in parallel, the flange formed on the a boundary side of the first unit duct and the flange formed on the boundary side of the second unit duct are fixed with one over another, and the flange formed on the boundary side of the third unit duct and the flange formed on the boundary side of the fourth unit duct are fixed with one over another.

Claims

1. An air-conditioning duct for vehicles with one duct mutually connected to other duct, wherein one duct is formed by incorporating in parallel a first unit duct with a flange formed around an opening periphery thereof and a second unit duct with a flange formed around an opening periphery, the other duct is formed by incorporating in parallel a third unit duct with a flange formed around an opening periphery thereof and a fourth unit duct with a flange formed around an opening periphery thereof, the flange formed on the boundary side of the first unit duct and the flange formed on the boundary side of the second unit duct are fixed with one over another, and the flange formed on the boundary side of the third unit duct and the flange formed on the boundary side of the fourth unit duct are fixed with one over another.

2. The air-conditioning duct according to claim 1, wherein flanges formed on the boundary side of the first unit duct, the second unit duct, the third unit duct, and the fourth unit duct are outer flanges.

3. The air-conditioning duct according to claim 1, wherein the flange formed on the boundary side of the first unit duct is an outer flange, the flange formed on the boundary side of the second unit duct is an inner flange, the flange formed on the boundary side of the third unit duct is an outer flange, and the flange formed on the boundary side of the fourth unit duct is an inner flange.

4. The air-conditioning duct according to claim 1, wherein a cross-section area of the first unit duct is larger than that of the second unit duct, a cross-section area of the third unit duct is larger than that of the fourth unit duct, and when connecting one duct with other duct, the first unit duct and the third unit duct are connected, and the second unit duct and the fourth unit duct are connected.

5. The air-conditioning duct according to claim 1, wherein the one duct and the other duct are connected with a seal material.