초록 ▼

A support mechanism for moving a roof top pivotally mounted air deflector panel between raised and lowered positions includes a collapsible toggle linkage having a support link and a pivot link. The pivot link is pivotally mounted on the cab rear wall and has a handle by which an operator standing o

A support mechanism for moving a roof top pivotally mounted air deflector panel between raised and lowered positions includes a collapsible toggle linkage having a support link and a pivot link. The pivot link is pivotally mounted on the cab rear wall and has a handle by which an operator standing on the tractor at the rear of the cab pivots the pivot link between vertically upright extending and downward extending positions. A support link has an upper end pivotally connected to the deflector panel and a lower end pivotally connected to the pivot link so that rearward pivotal movement of the pivot link swings the lower end of the support link rearwardly and downwardly to withdraw the support link from support of the air deflector panel. The collapsible toggle linkage stores adjacent the cab rear wall for ready handle access by the operator for subsequent raising of the deflector panel. A telescoping spring device acts between the cab roof and the deflector panel to assist upward pivotal movement of the pivot link and extension of the collapsible toggle linkage to raise the deflector panel. A releasable latch is provided to retain the collapsible toggle linkage in both the extended and collapsed positions. A pair of such collapsible linkages are preferably provided in laterally spaced relation and connected by a handle extending therebetween to enable simultaneous pivotal movement of the collapsible toggle linkages between the extended position raising the collector panel and collapsed position lowering the deflector panel.

대표청구항 ▼

In combination with a tractor having a cab roof and a cab rear wall, a support mechanism for moving an air deflector panel pivoted to the cab roof between a pivotally raised air deflecting position and a lowered storage position in which the deflector panel is stored adjacent the cab roof comprising

In combination with a tractor having a cab roof and a cab rear wall, a support mechanism for moving an air deflector panel pivoted to the cab roof between a pivotally raised air deflecting position and a lowered storage position in which the deflector panel is stored adjacent the cab roof comprising: a collapsible toggle linkage including a support link having an upper end pivotally connected to the deflector panel and a lower end, a pivot link having a lower end pivotally mounted on the cab rear wall below the roof for pivotal movement between a raised position standing vertically upwardly and a lowered position depending vertically downwardly, and pivot means acting between the pivot link and the lower end of the support link whereby rearward pivotal movement of the pivot link about the lower end from the raised position thereof effects rearward arcuate movement of the lower end of the support link in an arcuate path rearwardly of the rear cab wall to withdraw the support link from support of the deflector panel whereby the air deflector panel is lowered and the collapsible linkage is stored adjacent the rear wall of the cab.