| 摘要 |
An air deflector assembly (3) is suitable for mounting on a roof (2) of a motor vehicle having a driver cab (1) with a substantially vertical rear wall (13). The air deflector assembly (3) includes a support frame (23) for mounting to the roof (2) of the driver cab (1). The assembly (3) further includes a deflector panel (9) adjustably supported by the support frame (23), and a positioning mechanism permitting the deflector panel (9) to be moved between a retracted position and a selected one of several deflecting positions. A forward edge of the deflector panel (9) is pivotally mounted to the support frame (23). The positioning mechanism comprises a lever (57) with a first lever end and a second lever end (69). The first lever end being pivotally arranged on the support frame by a transverse shaft (55). A link (61) having a first link end (65) and a second link end (66), has its first link end (65) pivotally linked to the deflector panel (9) by means of a hinge bracket (73). A hinge member (67) pivotally connects the lever (57) and the link (61) to one another. A linear actuator (75) has first and second pivotal connecting ends (101, 77) and is arranged for altering an angle defined between the lever (57), the link (61), and the hinge member (67). One of the hinge member (67) and a pivotal attachment of the second pivotal connecting end (77) of the linear actuator (75) is associated with a location on one of the lever (57) and the link (61) intermediate of the respective first and second lever end (69) or the first and second link end (65, 66). [Figure 3] |
