Full contact ganged grass mower housings
OwnerJohn F. Nunes JR.inventor
Life of this patent
Estimating the term…
Abstract
An improved and more efficient rotary mower comprised of a grass cutting assembly having two or more housings, each of said housing supporting and powering a single horizontally rotating blade, each of said housings being mounted as part of a group permitting verticaal motion by a housing and free orientation of its cutting blade independent of the other housings. An extra degree of freedom of motion of the individual housings results from support means which allows vertical motion and pivoting of a housing from a centralized support point. The assembly permits an improved grass cutting means over uneven terrain.
Claims38
A rotary lawn mower, comprising a frame, wheel means connected to the frame to permit the frame to be moved over the ground, housing attachment means connecting said frame to at least two housings, wheel and/or roller means connected to each housing to permit each housing to be moved independently over the ground, power means mounted on said housing and including a drive shaft, rotable means disposed within the housing, said rotable means including an annular member journaled about said drive shaft, and a cutting blade carried by said annular member, said power means permitting the rotation of the drive shaft, said housing attachment means comprising,
- at least one connecting member flexibly attached between said frame and,
- a horizontal cross bar. said flexible attachment allowing said cross bar to be elevated with respect to the frame by,
- tilting means and a tilting member for each at least one connection member and said tilting member flexibly attached to the frame and, at its other end, to a point along said at least one connecting member and said tilting means permitting the elevation of said tilting member, the connecting member and said cross bar and said flexible attachment allowing any connecting member to be elevated when said cross bar is tilted,
- at least two lift bars, each with flexible connection means attached to said cross bar and to a housing and said flexible connection means comprised of,
- an upper hinge connection between said cross bar and a lift bar and a lower hinge connection between said lift bar and a housing and axial rotation means provided by the hinge connections and/or said lift bar,
- said cross bar position above the ground being adjustable vertically and normally positioned at a height to allow said housings to move freely up and down while its wheels and/or rollers are resting on the ground.
A rotary lawn mower, comprising a frame, wheel means connected to the frame to permit the frame to be moved over the ground, housing attachment means connecting said frame to at least two housings, wheel and/or roller means connected to each housing to permit each housing to be moved independently over the ground, power means mounted on said housing and including a drive shaft, rotable means disposed within the housing, said rotable means including an annular member journaled about said drive shaft, and a cutting blade carried by said annular member, said power means permitting the rotation of the drive shaft, said housing attachment means comprising,
- a swing arm with flexible attachment means flexibly attached between said frame and rotational means for said swing arm,
- a lift joint, said flexible attachment means allowing said lift joint to be elevated with respect to the frame by rotating said swing arm upward,
- at least two lift bars, each with flexible connection means attached to said lift joint and to a housing and said flexible connection means comprised of,
- an upper hinge connection between said lift joint and a lift bar and a lower hinge connection between said lift bar and a housing and axial rotation means provided by the hinge connections and/or said lift bar,
- said lift joint being positioned vertically by adjustable means and/or by said swing arm and said lift joint being normally positioned above the ground at a height to allow said housings to move freely up and down while its wheels and/or rollers are resting on the ground
A rotary lawn mower, comprising a frame, wheel means connected to the frame to permit the frame to be moved over the ground. housing attachment means connecting said frame to at least two housings, wheel and/or roller means connected to each housing to permit each housing to be moved independently over the ground, power means mounted on said housing and including a drive shaft, rotable means disposed within the housing, said rotable means including an annular member journaled about said drive shaft, and a cutting blade carried by said annular member, said power means permitting the rotation of the drive shaft, said housing attachment means comprising,
- at least one connecting member flexibly attached between said frame and,
- a horizontal cross bar, said flexible attachment allowing said cross bar to be elevated with respect to the frame by,
- tilting means and a tilting member for each at least one connection member and said tilting member flexibly attached to the frame and, at its other end, to a point along said at least one connecting member and said tilting means permitting the elevation of said tilting member, the connecting member and said cross bar and said flexible attachment allowing any connecting member to be elevated when said cross bar is tilted,
- at least two lift bars, each with flexible connection means attached to said cross bar and to a housing with compact nesting of said housings and bumper means for one of two adjacent housings, and said flexible connection means comprised of,
- an upper hinge connection between said cross bar and a lift bar and a lower hinge connection between said lift bar and a housing and axial rotation means provided by the hinge connections and/or said lift bar,
- said cross bar position above the ground being adjustable vertically and normally positioned at a height to allow said housings to move freely up and down while its wheels and/or rollers are resting on the ground.
A rotary lawn mower, comprising a frame, wheel means connected to the frame to permit the frame to De moved over the ground, housing attachment means connecting said frame to at least two housings, wheel and/or roller means connected to each housing to permit each housing to be moved independently over the ground, power means mounted on said housing and including a drive shaft, rotable means disposed within the housing, said rotable means including an annular member journaled about said drive shaft, and a cutting blade carried by said annular member, said power means permitting the rotation of the drive shaft, said housing attachment means comprising,
- a swing arm with flexible attachment means flexibly attached between said frame and rotational means for said swing arm,
- a lift joint, said flexible attachment means allowing said lift joint to be elevated with respect to the frame by rotating said swing arm upward,
- at least two lift bars, each with flexible connection means attached to said lift joint and to a housing with compact nesting of said housings and bumper means for one of two adjacent housings, and said flexible connection means comprised of,
- an upper hinge connection between said lift joint and a lift bar and a lower hinge connection between said lift bar and a housing and axial rotation means provided by the hinge connections and/or said lift bar,
- said lift joint being positioned vertically by adjustable means and/or by said swing arm and said lift joint being normally positioned above the ground at a height to allow said housings to move freely up and down while its wheels and/or rollers are resting on the ground.
Dependencies are inferred from the claim text.