Attachment for rotary lawn mower
First Claim
Patent Images
1. A rotary lawn mower of a type having a housing that includes a cutting chamber bounded by downwardly depending side walls having a lower edge;
- means for supporting said housing for movement over a ground surface at a selected height thereabove;
a substantially rigid cutting blade located within said cutting chamber, wherein said cutting blade has a top side and a bottom side and at least one sharpened cutting edge; and
means in said housing for rotating said blade in a substantially horizontal cutting plane such that said cutting edge severs standing vegetation;
wherein the improvement relates to a trimming attachment for said blade, which comprises;
(a) a filament holder;
(b) means for selectively and releasably mounting said holder in said blade; and
(c) a flexible filament contained in said holder, which filament extends radially outwardly relative to said blade and is sufficiently long to extend out past the side walls of said housing when said holder is mounted on said blade, whereby said filament can be used to trim vegetation outside said housing by selectively coupling said filament holder to said blade.
1 Assignment
0 Petitions
Accused Products
Abstract
A rotary lawn mower (2) has a rigid cutting blade (6) rotatable in a housing (4). A filament holder (12) is releasably attached to blade (6) through aperture (16) by mounting means consisting of tab (22), neck (24), and collar (26). Filament holder (12) releasably contains a filament (14) which extends beyond housing (4) and provides a trimming function outside housing (4).
-
Citations
10 Claims
-
1. A rotary lawn mower of a type having a housing that includes a cutting chamber bounded by downwardly depending side walls having a lower edge;
- means for supporting said housing for movement over a ground surface at a selected height thereabove;
a substantially rigid cutting blade located within said cutting chamber, wherein said cutting blade has a top side and a bottom side and at least one sharpened cutting edge; and
means in said housing for rotating said blade in a substantially horizontal cutting plane such that said cutting edge severs standing vegetation;
wherein the improvement relates to a trimming attachment for said blade, which comprises;(a) a filament holder; (b) means for selectively and releasably mounting said holder in said blade; and (c) a flexible filament contained in said holder, which filament extends radially outwardly relative to said blade and is sufficiently long to extend out past the side walls of said housing when said holder is mounted on said blade, whereby said filament can be used to trim vegetation outside said housing by selectively coupling said filament holder to said blade. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- means for supporting said housing for movement over a ground surface at a selected height thereabove;
-
10. A rotary lawn mower of the type having a housing that includes a cutting chamber bounded by downwardly depending side walls having a lower edge;
- means for supporting said housing for movement over a ground surface at a selected height thereabove;
a substantially rigid cutting blade located within said cutting chamber, wherein said blade has a top side and a bottom side and at least one sharpened cutting edge; and
means in said housing for rotating said blade in a substantially horizontal cutting plane at a speed sufficient to sever standing vegetation;
wherein the improvement relates to a trimming attachment for said blade, which comprises;(a) a filament holder; (b) means for selectively installing and removing a filament in said holder; (c) means for selectively and releasably mounting said holder in said blade from the bottom side of said blade without tools; and (d) a flexible filament contained in said holder, which filament is long enough to extend beyond said housing side walls when said filament is extended in operating position, thereby allowing trimming of vegetation outside said walls of said housing.
- means for supporting said housing for movement over a ground surface at a selected height thereabove;
Specification