Electrically powered grass trimmer

Claim 2

In an electrically powered lawn care tool, a split housing longitudinally divided into a pair of separately formed mating shells, means securing said shells together, an electric motor disposed in said housing and having a casing, a blade located exteriorly of said housing and drive connected to said motor for rotation about a pre-selected axis, an elongated handlebar extending from said housing, and handle grip means positioned on said handlebar remote from said housing, said shells having abutting bottom wall portions that define a bottom wall of said housing, said shells being integrally formed with opposed ears extending radially of the motor rotational axis and interfittingly seating against said casing on diametrically opposite side of said motor to confine said motor against lateral movement, one of said ears being formed with a lip, and said motor being axially confined between said lip and said bottom wall, and coacting means on one of said ears and said casing for preventing rotation of said casing relative to said housing.

Claim 3

In an electrically powered grass trimmer, a split motor housing longitudinally divided into a pair of separately formed, mating shells, an electric motor mounted in said housing, a grass-cutting blade located below said housing and drive connected to said motor for rotation about a substantially vertical axis when said housing is in an upright position, an elongated member extending from said housing, handle means positioned on said elongated member remote from said housing, and means including a guard for said blade for detachably securing said shells together, wherein said shells are formed with abutting bottom wall portions that define the bottom wall of said housing, and wherein said guard has a base portion seated against the underside of said bottom wall and a blade-guarding skirt portion depending from said base portion and extending peripherally around said blade, said base portion being formed with first and second apertures, said shells being integrally formed with a first pair of mating post portions that depend from said bottom wall portion and seat against each other along the interface between said shells, said shells being further formed with a second pair of mating post portions that also depend from said bottom wall portions and seat against each other along the interface between said shells, said first pair of post portions extending snugly through a first region of said first aperture and said second pair of post portions extending snugly through a first region of said second aperture to secure said shells together along the interface between said bottom wall portions, each of said first and second apertures having a second region that is larger than said first region to freely receive their associated post portions, said guard being displaceable radially of said axis to position said first pair of post portions in said second region of said first aperture and to position said second pair of post portions in said second region of said second aperture, said guard being detachable from said housing upon positioning said first and second pairs of post portions in their associated second regions of said first and second apertures.

Claim 4

In an electrically powered grass trimmer, a split motor housing longitudinally divided into a pair of separately formed, mating shells, an electric motor mounted in said housing, a grass-cutting blade located below said housing and drive connected to said motor for rotation about a substantially vertical axis when said housing is in an upright position, an elongated member extending from said housing, handle means positioned on said elongated member remote from said housing, and means including a guard for said blade for detachably securing said shells together, wherein said shells are formed with abutting bottom wall portions that define the bottom wall of said housing, and wherein said guard has a base portion seated against the underside of said bottom wall and a blade-guarding skirt portion depending from said base portion and extending peripherally around said blade, said base portion being formed with first and second apertures, said shells being integrally formed with a first pair of mating post portions that depend from said bottom wall portion and seat against each other along the interface between said shells, said shells being further formed with a second pair of mating post portions that also depend from said bottom wall portions and seat against each other along the interface between said shells, said first pair of post portions extending snugly through a first region of said first aperture and said second pair of post portions extending snugly through a first region of said second aperture to secure said shells together along the interface between said bottom wall portions, each of said first and second apertures having a second region that is larger than said first region to freely receive their associated post portions, said guard being displaceable radially of said axis to position said first pair of post portions in said second region of said first aperture and to position said second pair of post portions in said second region of said second aperture, said guard being detachable from said housing upon positioning said first and second pairs of post portions in their associated second regions of said first and second apertures.