Grass catcher unit for rotary lawnmowers

Claim 2

A rotary mower comprising a blade housing carrying a rotary cutter blade and having a grass clipping discharge outlet, a disposable collection bag for collecting grass clippings discharged from said outlet and having an inlet, a flexible carrier sack having an interior for carrying said collection bag and having a mouth connected to said outlet, and means on said carrier sack in the vicinity of said mouth for engagement with said collection bag for maintaining said inlet open and for removably locating said collection bag in communication with said outlet.

Claim 3

A rotary mower according to claim 1 including closure means on said carrier sack for affording access to the interior of said carrier sack and for facilitating the installation of said collection bag into and the removal of said collection bag from said carrier sack.

Claim 4

A rotary mower according to claim 1 wherein said means for maintaining said inlet open and for locating said inlet includes an annular collar assembly which extends rearwardly from said mouth and over which the inlet of said collection bag fits, and means for removably holding the inlet of said collection bag on said collar assembly.

Claim 5

A rotary mower according to claim 3 wherein said collar assembly includes an annular skirt having a forward end portion connected to the interior of said carrier sack adjacent said mouth and a rear end portion and a pair of axially spaced hoops attached to the rear end portion of said skirt and surrounded by the inlet of said collection bag.

Claim 6

A rotary mower according to claim 4 wherein said holding means comprises an elastic band adapted to fit over said collection bag between said hoops.

Claim 7

A rotary mower according to claim 2 wherein said carrier sack is made from a flexible material, has side walls, and includes means for maintaining said side walls in spaced relationship so as to define a compartment for accommodating said collection bag.

Claim 8

A rotary mower according to claim 5 wherein said closure means comprises a closable flap in one of said carrier sack side walls.

Claim 9

A rotary mower according to claim 1 wherein said collection bag is made from a flexible, thin sheet material and includes a plurality of perforations for permitting said collection bag to be fully expanded within said carrier sack by a pressurized air stream generated by said cutter blade.

Claim 10

A rotary mower comprising a blade housing carrying a rotary blade and having a grass clipping discharge outlet, a disposable collection bag for collecting grass clippings discharged from said outlet and having an inlet, said collection bag being made from a flexible, thin sheet material and including a plurality of perforations for permitting said collection bag to be fully expanded by a pressurized air stream generated by said cutter blade, a carrier sack being made from a flexible material and having side walls, an annular collar assembly located inside said carrier sack in the vicinity of said mouth and extending rearwardly from said mouth for engagement with said collection bag to maintain said inlet open and to removably locate said inlet of said collection bag in communication with said outlet, the inlet of said collection bag fitting over said collar assembly, means for removably holding the inlet of said collection bag on said collar assembly, and a closable flap in one of said carrier sack side walls for affording access to the interior of said carrier sack and for facilitating the installation of said collection bag into and the removal of said collection bag from said carrier sack.

Claim 11

A rotary mower comprising a blade housing carrying a rotary blade and having a grass clipping discharge outlet, a disposable collection bag for collecting grass clippings discharged from said outlet and having an inlet, said collection bag being made from a flexible, thin sheet material and including a plurality of perforations for permitting said collection bag to be fully expanded by a pressurized air stream generated by said cutter blade, a carrier sack being made from a flexible material and having side walls, an annular collar assembly located inside said carrier sack in the vicinity of said mouth and extending rearwardly from said mouth for engagement with said collection bag to maintain said inlet open and to removably locate said inlet of said collection bag in communication with said outlet, the inlet of said collection bag fitting over said collar assembly, means for removably holding the inlet of said collection bag on said collar assembly, and a closable flap in one of said carrier sack side walls for affording access to the interior of said carrier sack and for facilitating the installation of said collection bag into and the removal of said collection bag from said carrier sack.

Claim 12

A grass catcher unit for a rotary lawn mower having a grass clipping discharge outlet comprising a disposable collection bag having an inlet, a flexible carrier sack having an interior for carrying said collection bag and a mouth adapted for connection to the mower discharge outlet, means on said carrier sack in the vicinity of said mouth for engagement with said collection bag to maintain said inlet open and to removably locate said collection bag inlet in position for communication with the mower discharge outlet, and closure means on said carrier sack for affording access to the interior of said carrier sack and for facilitating the installation of said collection bag into and the removal of said collection bag from said carrier sack.

Claim 13

A grass catcher unit for a rotary lawn mower having a grass clipping discharge outlet comprising a disposable collection bag having an inlet, a flexible carrier sack having an interior for carrying said collection bag and a mouth adapted for connection to the mower discharge outlet, means on said carrier sack in the vicinity of said mouth for engagement with said collection bag to maintain said inlet open and to removably locate said collection bag inlet in position for communication with the mower discharge outlet, and closure means on said carrier sack for affording access to the interior of said carrier sack and for facilitating the installation of said collection bag into and the removal of said collection bag from said carrier sack.

Claim 14

A rotary mower comprising a blade housing carrying a rotary cutter blade and having a grass clipping discharge outlet, a non-self supporting disposable bag for collecting grass clippings discharged from said outlet and having an inlet, and means for supporting said disposable collection bag from said blade housing and including an outer flexible container supported from said blade housing and housing said disposable bag, said outer container including a mouth communicating with said discharge outlet, said outer container also including means communicating with said mouth and engaging said disposable bag for maintaining said inlet open and in communication with said mouth.

Claim 15

A rotary mower comprising a blade housing carrying a rotary cutter blade and having a grass clipping discharge outlet, a non-self supporting disposable bag for collecting grass clippings discharged from said outlet and having an inlet, and means for supporting said disposable collection bag from said blade housing and including an outer flexible container supported from said blade housing and housing said disposable bag, said outer container including a mouth communicating with said discharge outlet, said outer container also including means communicating with said mouth and engaging said disposable bag for maintaining said inlet open and in communication with said mouth.