Mower head with movable guard

Abstract

A mower head has a deck with at least three sides and at least one side wall depending from the deck. A cutting blade is rotatably mounted to the deck on an axis extending through the deck. The deck is disposed above and generally parallel to the blade. A guard assembly includes an actuating member mounted on the deck. The guard is attached to the actuating member and pivotally attached to the deck via a hinge along two sides of the deck. A flap depends from the guard. A flap also depends from one of the three sides of said deck. A top surface of the guard and a top surface of the deck can be located in the same plane. In a second embodiment, the guard includes a first wall having a plurality of angled sections which matingly interconnect with angled sections of one of the deck sides. In a third embodiment, the top surface of the guard and the top surface of the deck are located in different planes.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a mower head. More particularly, the present invention relates to a mower head with a movable guard.[0002]The invention finds particular application in conjunction with rotary brush and grass mowing and cutting apparatus for trimming highway medians and shoulders and will be described with particular reference thereto. It is to be appreciated, however, that the invention has other applications including clearing saplings, small trees, brush, grass, and the like.[0003]Heretofore, mowing heads have been mounted to tractors and other prime movers with various constructions including articulated arm assemblies and side arm assemblies. The mower heads commonly include one or a plurality of rotating cutting blades which are housed within a shield structure. The shield typically includes an upper deck and a skirt which extends from the upper deck below the rotary cutting blades along all but the forward side of the mower hea...

AI Technical Summary

Benefits of technology

"The present invention is a new and improved mower head with a movable guard. The mower head has a deck with at least three sides and a side wall depending from the deck. The deck has a flap that is attached to the deck. The guard assembly includes an actuating member, a guard, and a flap. The actuating member is mounted on the deck and the guard is pivotally attached to the deck along two sides of the deck. The flap depends from the guard. The mower head can be installed either in front of an angled main deck or above the main deck. The technical effects of the invention include improved safety, better access, and better protection of the cutting blade."

Problems solved by technology

Guarding the blades on a rotary cutter has always been a major problem.

Removing a straight front section of a rectangular or square mower housing, which acts as a guard, did not prove to be adequate.

This construction provides a very limited cutting swath for the blades.

This construction was disadvantageous because no shield extended downwardly to prevent the blades from throwing foreign objects when the guard is in its normal position.

Another problem with the prior art mower heads is that it is difficult to pass heavier brush and saplings below the shield into the cutting blade.

In areas along roadways and the like such devices are disadvantageous because people may be harmed by the cutting blade or objects thrown by the blade.

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