US 6,179,092 B2Granted

Parking lock for an agricultural implement

AssigneeNew Holland North Ameria, Inc.

InventorsAdrianus Naaktgeboren, Danny No{umlaut over (e)}l Oscar Claeys, Freddy Albert Hindryckx

Life of this patent

Estimating the term…

Loading patent…

Abstract

A parking lock for an agricultural implement, such as a baler, includes a force accumulator mechanism operatively installed between a setting apparatus and a lock member. A control mechanism is operable to apply a force on the lock member in the direction of the release when the setting apparatus is held in its transport position and the lock member is retained in the hold position. The control mechanism is also operable to move the lock member to the release position whenever the setting apparatus is held in the transport position and the lock member is released. The force accumulator can be a spring positioned between the setting apparatus and the lock member. A method of method of releasing a parking lock on an agricultural implement is also provided by which the setting apparatus is moved from the park position to the transport position to load the force accumulator. At least one of the wheels of the implement is oscillated to take away the force applied by the wheel on the lock member so that the lock member can be moved from the hold position to the release position by the action of the force accumulator without requiring further input from the operator.

Claims11

Dependent claims

In an agricultural implement having a main frame;

at least one pair of ground-engaging wheels rotatably attached to said frame;
a mechanism for attaching said frame to a towing vehicle;
and a mechanism for locking said wheels relative to said frame to prevent further movement of said implement, said locking mechanism including a lock member movable between a hold position in which said lock member precludes the rotation of at least one of said wheels and a release position in which said lock member permits rotation of said at least one wheel;
control mechanism operatively linked to said lock member for moving said member between said hold position and said release position, said control mechanism including a setting apparatus movable between a park position for moving said lock member to said hold position and a transport position for moving said lock member to said release position, the improvement comprising:
said control mechanism further including a force accumulator mechanism operatively installed between said setting apparatus and said lock member, and
said control mechanism being operable to apply on said lock member a force in the direction of the release position while said setting apparatus is held in its transport position and said lock member is retained in said hold position and
said control mechanism further being operable to move said lock member to said release position when said setting apparatus is held in its transport position and said lock member is released.

4 more elements

Dependencies are inferred from the claim text.