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1. (WO2011152247) VEHICLE AIR CONDITIONING DEVICE

Pub. No.:    WO/2011/152247    International Application No.:    PCT/JP2011/061861
Publication Date: Dec 8, 2011 International Filing Date: May 24, 2011
IPC: B60H 1/00
Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD.
三菱重工業株式会社
HARA, Junichiro
原 淳一郎
NAKAMURA, Tomoki
中村 智樹
Inventors: HARA, Junichiro
原 淳一郎
NAKAMURA, Tomoki
中村 智樹
Title: VEHICLE AIR CONDITIONING DEVICE
Abstract:
Disclosed is a vehicle air conditioning device such that a plurality of blowoff mode switching dampers are rotated via a link mechanism comprising levers and a rotatable link (21), said levers being provided on rotation shafts, and said rotatable link (21) being equipped with a plurality of cam grooves (25, 26) along which pins provided on the levers slide, and that thereby blowoff modes can be selectively switched. In this vehicle air conditioning device, rail sections (27, 28) are provided either on the inner peripheral surfaces of the cam grooves (25) or on the outer peripheral surfaces of the pins. Thus the cam grooves (25) and the pins are brought into mutual contact, with the rail sections therebetween. As a result, restrictions can be imposed on the generation of abnormal sound caused due to a situation where foreign objects are caught between the sliding surfaces of the cam grooves and the pins (including the surfaces of the rails). Since the rail sections are provided, contact surfaces between the cam grooves and the pins can be made smaller, and therefore, sliding frictional force can be reduced. Consequently, it is possible to improve the operability of the link mechanism.