Zero turning radius mower park brake system
AssigneeDeere & Company
InventorsRobert D. Dunbar, Jaimie Pelino, Frank M. Welz
Life of this patent
Estimating the term…
Abstract
A zero turning radius mower park brake system includes an over-center pivot member that pivots to a park brake engaged position in response to moving a control arm fully outward, and to a park brake disengaged position in response to moving the control arm fully inward. The control arm is disconnected from the over-center pivot member in the park brake engaged and disengaged positions. An actuator on a lower end of the control arm may contact the over-center pivot member between the park brake engaged and disengaged positions. A biasing spring urges the over-center pivot member to the park brake engaged position and park brake disengaged position.
Claims15
A zero turning radius mower park brake system, comprising:
- an over-center pivot member pivoting to a park brake engaged position in response to moving a control arm fully outward, and to a park brake disengaged position in response to moving the control arm fully inward;
- the control arm disconnecting from the over-center pivot member in the park brake engaged and disengaged positions.
A zero turning radius mower park brake system, comprising:
- at least one over-center pivot member mounted to a zero turning radius mower adjacent the lower end of at least one control lever;
- the over-center pivot member connected to a park brake for a drive wheel, and being spring biased to a first position where the park brake is disengaged or a second position where the park brake is engaged;
- the each control lever contacting disconnected from the over-center pivot member and then parting from the over-center pivot member at the first position or the second position.
A zero turning radius mower park brake system, comprising:
- an over-center pivot member connected to a park brake;
- an actuator at a lower end of a pivotable steering arm bracket;
- the actuator briefly contacting the over-center pivot member to a park brake engaged position when the steering arm bracket is pivoted outwardly, and to a park brake disengaged position when the steering arm bracket is pivoted inwardly;
- the actuator being spaced from the over-center pivot member at each of the park brake engaged position and park brake disengaged position.
A zero turning radius mower park brake system, comprising:
- an over-center pivot member connected to a park brake;
- an actuator at a lower end of a pivotable steering arm bracket;
- the actuator urging the over-center pivot member to a park brake engaged position when the steering arm bracket is pivoted outwardly, and to a park brake disengaged position when the steering arm bracket is pivoted inwardly;
- the actuator being spaced from the over-center pivot member at each of the park brake engaged position and park brake disengaged position;
- wherein the over-center pivot member is claw-shaped having a pair of fingers with a gap therebetween.
The A zero turning radius mower park brake system, comprising:
- an over-center pivot member connected to a park brake;
- an actuator at a lower end of a pivotable steering arm bracket;
- the actuator urging the over-center pivot member to a park brake engaged position when the steering arm bracket is pivoted outwardly, and to a park brake disengaged position when the steering arm bracket is pivoted inwardly;
- the actuator being spaced from the over-center pivot member at each of the park brake engaged position and park brake disengaged position;
- wherein the over-center pivot member has a vertical pivot axis.
A zero turning radius mower park brake system, comprising:
- at least one over-center pivot member mounted to a zero turning radius mower adjacent the lower end of at least one control lever;
- each over-center pivot member connected to a park brake for a drive wheel, and being spring biased to a first position where the park brake is disengaged or a second position where the park brake is engaged;
- each control lever disconnected from the over-center pivot member and when the over-center pivot member reaches the first position or the second position;
- wherein each over-center pivot member is claw-shaped having a pair of fingers and an opening or gap therebetween.
A zero turning radius mower park brake system, comprising:
- an over-center pivot member pivoting to a park brake engaged position in response to moving a control arm fully outward, and to a park brake disengaged position in response to moving the control arm fully inward;
- the control arm being disconnected from the over-center pivot member in the park brake engaged and disengaged positions;
- wherein the over-center pivot member includes a pair of lobes with a gap therebetween.
A zero turning radius mower park brake system, comprising:
- an over-center pivot member pivoting to a park brake engaged position in response to moving a control arm fully outward, and to a park brake disengaged position in response to moving the control arm fully inward;
- the control arm being disconnected from the over-center pivot member in the park brake engaged and disengaged positions;
- wherein the over-center pivot member includes a pair of fingers with a gap therebetween.
Dependencies are inferred from the claim text.