Power lawn mower including shortened control arms for use in deck lift system
DC CAFCFirst Claim
Patent Images
1. A self-propelled power lawn mower comprising:
- a pair of rear drive wheels;
a cutter deck assembly;
a combustion engine;
a deck lift system for raising and lowering the cutter deck assembly and combustion engine together in order to adjust a blade cutting height of the mower; and
first and second pivoting control arms for helping provide lateral positioning of the cutter deck assembly and combustion engine during the raising and lowering, wherein the first and second control arms are pivotally connected to either the cutter deck assembly or an engine deck assembly, so as to pivot upward and downward along with corresponding upward and downward movement of the cutter deck assembly and combustion engine; and
wherein the first and second pivoting control arms are located entirely forward of respective rear edges of said rear drive wheels.
1 Assignment
Litigations
0 Petitions
Reexamination
Accused Products
Abstract
A self-propelled power lawn mower deck lift system for raising and lowering the cutter deck assembly together with the engine deck and engine as a single unit in order to adjust the cutting height of the mower. Control arms may be of short enough length so that pivoting of the control arms an angle Φ of fifteen degrees during raising or lowering of the cutter deck assembly causes the cutter deck assembly to move a vertical distance “d” of no more than about 2.5 inches.
64 Citations
6 Claims
-
1. A self-propelled power lawn mower comprising:
-
a pair of rear drive wheels;
a cutter deck assembly;
a combustion engine;
a deck lift system for raising and lowering the cutter deck assembly and combustion engine together in order to adjust a blade cutting height of the mower; and
first and second pivoting control arms for helping provide lateral positioning of the cutter deck assembly and combustion engine during the raising and lowering, wherein the first and second control arms are pivotally connected to either the cutter deck assembly or an engine deck assembly, so as to pivot upward and downward along with corresponding upward and downward movement of the cutter deck assembly and combustion engine; and
wherein the first and second pivoting control arms are located entirely forward of respective rear edges of said rear drive wheels. - View Dependent Claims (2, 3)
-
-
4. A self-propelled power lawn mower comprising:
-
at least one drive wheel including an axis about which the drive wheel rotates during operation of the mower;
a cutter deck assembly;
a combustion engine for driving at least one cutting blade of the mower;
a deck lift system for raising and lowering the cutter deck assembly and combustion engine together in order to adjust a blade cutting height of the mower; and
first and second pivoting control arms for helping provide lateral positioning of the cutter deck assembly and combustion engine during the raising and lowering, wherein the first and second control arms are located entirely laterally forward of said axis of the drive wheel and are pivotally connected to either the cutter deck assembly or an engine deck assembly, so as to pivot upward and downward along with corresponding upward and downward movement of the cutter deck assembly and combustion engine. - View Dependent Claims (5, 6)
-
Specification