Speed control assembly for a self-propelled walk-behind lawn mower
First Claim
1. A speed control assembly for a self-propelled walk-behind lawn mower having a transmission connected to a pair of opposing wheels for selectively driving said wheels, said speed control assembly comprising:
- a casing attached to a handle of said lawn mower, said casing having an upper housing attached to a lower housing, wherein a portion of said handle is positioned between said upper and lower housings;
at least one lever rotatably attached to said casing;
a knob rotatably attached to said casing;
a first wire having a first end operatively connected to said at least one lever within said casing, said first wire having a second end attached to said transmission, wherein rotation of at least one of said pair of levers causes said transmission to switch between engagement and disengagement by actuation of said first wire; and
a second wire having a first end operatively connected to said knob within said casing, said second wire attached to said transmission, wherein rotation of said knob causes said second wire to adjusts an output rotational speed of said transmission by actuation of said second wire when said transmission is engaged.
1 Assignment
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Accused Products
Abstract
A speed control mechanism for controlling selective engagement of the self-propelled transmission assembly for a walk-behind lawn mower is provided. The speed control mechanism is also configured to control the relative output speed of the transmission assembly. The speed control mechanism includes a speed engagement assembly and a speed adjustment assembly, wherein the speed engagement assembly includes a pair of rotatable levers for causing the transmission assembly to actuate between a disengaged position and an engaged position and the speed adjustment assembly includes a rotatable knob for causing the relative output speed of the transmission assembly to the wheels of the lawn mower to increase or decrease.
670 Citations
14 Claims
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1. A speed control assembly for a self-propelled walk-behind lawn mower having a transmission connected to a pair of opposing wheels for selectively driving said wheels, said speed control assembly comprising:
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a casing attached to a handle of said lawn mower, said casing having an upper housing attached to a lower housing, wherein a portion of said handle is positioned between said upper and lower housings; at least one lever rotatably attached to said casing; a knob rotatably attached to said casing; a first wire having a first end operatively connected to said at least one lever within said casing, said first wire having a second end attached to said transmission, wherein rotation of at least one of said pair of levers causes said transmission to switch between engagement and disengagement by actuation of said first wire; and a second wire having a first end operatively connected to said knob within said casing, said second wire attached to said transmission, wherein rotation of said knob causes said second wire to adjusts an output rotational speed of said transmission by actuation of said second wire when said transmission is engaged. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A speed control assembly for a self-propelled walk-behind lawn mower having a transmission connected to a pair of opposing wheels for selectively driving said wheels, said speed control assembly comprising:
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a casing attached to a handle of said lawn mower, said casing including an upper housing attached to a lower housing, wherein a portion of said handle is disposed between said upper and lower housings; a speed engagement assembly rotatably attached to said casing, said speed engagement assembly connected to a first wire within said casing, wherein said first wire extends between said speed engagement assembly and said transmission, and rotation of said speed engagement assembly actuates said first wire which causes said transmission to switch between disengagement and engagement; and a speed adjustment assembly rotatably attached to said casing, said speed adjustment assembly connected to a second wire within said casing, wherein said second wire extends between said speed adjustment assembly and said transmission, and rotation of said speed adjustment assembly actuates said second wire which causes and adjustment of an output speed of said transmission to said wheels. - View Dependent Claims (8, 9, 10)
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11. A method for engaging and adjusting an output rotational speed of a transmission of a self-propelled walk-behind lawn mower, said method comprising:
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providing a speed control assembly comprising; a casing attached to a handle of said lawn mower, said casing including an upper housing attached to a lower housing, wherein a portion of said handle is disposed between said upper and lower housings; a first wire extending from said housing and is attached to said transmission, wherein actuation of said first wire switches said transmission between engagement and disengagement; and a second wire extending from said housing and is attached to said transmission, wherein actuation of said second wire adjusts an output rotational speed of said transmission when said transmission is engaged; actuating said first wire to switch said transmission between engagement and disengagement; actuating said second wire to adjust said output rotational speed of said transmission when said transmission is engaged. - View Dependent Claims (12, 13, 14)
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Specification