US 2013/0252531 A1 · GRILL SHUTTER DEVICE

Abstract

Provided is a grill shutter device that has movable fins rotating around a rotation shaft, and is able to control a flow rate of air flowing into a vehicle body from a grill opening portion, based on opening and closing operation of a shutter mechanism provided in the grill opening portion of a front portion of the vehicle body, in which fin lengths of two directions with a rotation center of the movable fin interposed therebetween are set to unequal lengths so that moment of an opening direction is generated in the movable fin based on the pressure of the air flowing-in from the grill opening portion, and when the movable fin rotates in a closing direction, a wall surface forming a flow path of the air between the wall surface and a leading end is located in a direction that the leading end of the movable fin moves.

Claims16

Dependent claims

A grill shutter device configured to be placed to a grill opening portion of a front portion of a vehicle body, comprising

a movable fin that is supported to be able to move rotationally and controls a flow rate of air flowing into a vehicle body from a grill opening portion, by an opening and closing operation due to moving rotationally,
wherein the movable fin is formed so that fin lengths of two directions with a rotation center of the movable fin interposed therebetween are set to unequal lengths so that moment of a direction performing the opening operation based on the pressure of the air flowing-in from the grill opening portion is generated, and
when the movable fin rotates in a closing direction, a wall surface forming a flow path of the air between the wall surface and a leading end is formed in a direction in which the leading end of the movable fin moves is formed.

Dependencies are inferred from the claim text.

Grill shutter device

Life of this patent

Grill shutter device

Life of this patent

Abstract

Claims16