US4086700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting head for a mower
Assignee: Elta Machine Industrial Co Ltd
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Filing: 1976-07-13
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Granted: 1978-05-02
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Expires: 1996-07-13
Abstract
Abstract A cutter for a lawn mower has a rotating disc for mounting on a driving mechanism, the disc having a cavity therein and two openings at diametrically opposite points in the periphery of the disc and opening out of the disc from the cavity. A guide member is provided on the opposite side of the each opening and each pair of opposed guide members defines the opening therebetween. The disc has holes therein inclined outwardly from a surface of the disc other than the periphery and extending into the cavity, one hole being provided adjacent each of the openings. A plurality of flexible wire-shaped cutting members, each having a wire-shaped portion of a flexible material and a stop on one end thereof, extending through the inclined holes and through the cavity and out through the openings and project beyond the periphery of the disc, with the stops against the surface of the disc for preventing the cutting members from being flung outwardly of the disc during rotation thereof.
Inventors
- 👤 Kiichi Inada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:39
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/416; A01D34/4168; A01D34/4166
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
204 words
A cutter for a lawn mower comprising: a rotating disc for mounting on a driving mechanism, said disc having a cavity therein and two openings at diametrically opposite points in the periphery of the disc and opening out of the disc from the cavity, a guide member on the opposite side of each opening and each pair of opposed guide members defining the opening therebetween, and said disc having holes therein inclined outwardly from a surface of the disc other than the periphery and extending into the cavity, one hole being provided adjacent each of said openings; and a plurality of flexible wire-shaped cutting members, each having a wire-shaped portion of a flexible material and a stop on one end thereof, said stop being of an elastic material harder than the material of the wire-shaped portion and having a flange thereon larger than said inclined holes, said wire-shaped portions of said cutting members extending through said inclined holes and through said cavity and out through said openings and projecting beyond the periphery of said disc, with said flanges against the surface of the disc from which said holes extend for preventing the cutting members from being flung outwardly of the disc during rotation thereof.
Claim 2
Dependent Claim
204 words
A cutter for a lawn mower comprising: a rotating disc for mounting on a driving mechanism, said disc having a cavity therein and two openings at diametrically opposite points in the periphery of the disc and opening out of the disc from the cavity, a guide member on the opposite side of each opening and each pair of opposed guide members defining the opening therebetween, and said disc having holes therein inclined outwardly from a surface of the disc other than the periphery and extending into the cavity, one hole being provided adjacent each of said openings; and a plurality of flexible wire-shaped cutting members, each having a wire-shaped portion of a flexible material and a stop on one end thereof, said stop being of an elastic material harder than the material of the wire-shaped portion and having a flange thereon larger than said inclined holes, said wire-shaped portions of said cutting members extending through said inclined holes and through said cavity and out through said openings and projecting beyond the periphery of said disc, with said flanges against the surface of the disc from which said holes extend for preventing the cutting members from being flung outwardly of the disc during rotation thereof.
Claim 3
Dependent Claim
50 words
A cutter as claimed in claim 1 in which the surfaces of said guide members which are opposed to each other to define an opening therebetween are substantially cylindrical with the curvature being in the direction in which the opening extends from the cavity to the periphery of the disc.
Claim 4
Dependent Claim
28 words
A cutter as claimed in claim 1 in which said guide members are rollers in said cavity the peripheries of which are spaced to define said openings therebetween.
Claim 5
Dependent Claim
60 words
A cutter as claimed in claim 1 in which said stop comprises a hollow cylindrical portion having a flange thereon and in which one end of said wire-shaped portion is inserted, and a collar of a permanently deformable material within said cylindrical portion and deformed into clamping engagement with said wire-shaped portion for retaining said wire-shaped portion in said stop.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |