Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Patent
1994-09-15
1997-03-04
Graham, Gary K.
Brushing, scrubbing, and general cleaning
Implements
Brush or broom
15179, 15199, 15205, 300 21, A46B 710, A46B 316
Patent
active
056067623
DESCRIPTION:
BRIEF SUMMARY
TECHINCAL FIELD
The present invention concerns a device in cassettes for spring members for a machine intended, i.a., for cleaning of streets and roads, wherein the cassettes are arranged in brackets which are located around the periphery of a roller and extend mainly in-the longitudinal direction of the roller. The cassettes include spring members, such as radially-projecting bristles, whole ends are brought in contact with the ground by rotation of the roller.
BACKGROUND OF THE INVENTION
A great number of solutions are known for the fastening of cassettes for bristle bunches arranged around the periphery of a bristle roller or roller brush, which in its turn rotatably mounted on a sweeping machine or the like. U.S. Pat. No. 4,302,563 describes a bristle roller including elongated cassettes in which bunches of bristles are arranged in openings along the length of each cassette. Each cassette is accommodated in a groove extending along the length of the bristle roller and is constituted by two facing U-shaped sheet profiles which provide facing openings in which bristle bunches are arranged with radially-projecting bristles. The bristle bunches include spring members which are double bent at the bottom of each bunch around a locking wire, which is arranged underneath the sheet profile located close to the bristle roller and fixed by a loop-shaped projection at the under side of the profile. The cassettes are given a sufficiant rigidity in that the two sheet profiles engage and constitute a closed cross section. A single U-shaped profile open outwardly would have a too low rigidity to be practially used.
Another embodiment of a bristle roller is disclosed in U.S. Pat. No. 4,498,210. In this roller a cassette is arranged in brackets, which in turn are attached upon a longitudinally-extended roller. The brackets provide sliding grooves in which the cassettes are positioned. The spring members in each cassette are arranged along the full extension of the cassette and are double bent around a locking wire extending along the bottom of the cassette. The spring members are kept in the cassette because it is plastically as well as elastically deformed after that the spring members are mounted in a way that the locking wire is kept at the bottom of the cassette and the spring members are jammed along the extension of the cassette. A drawback with cassettes of this design is that the locking wire is not fixed in an exact position sideways or vertically along the extension of the cassette. Cassettes according to this design also are sensitive to water and dirt penetrating into the inner of the cassettes as well as the brackets for the same.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a device in cassettes for spring members for a machine intended, i.a., for cleaning of streets and roads, which do not have the drawbacks which are present in known cassettes. The cassettes according to the invention are arranged in brackets around the periphery of a roller that extend mainly in the longitudinal direction of the roller. Each cassette includes spring members such as radially-projecting bristles, the ends of which are brought in contact with the ground during rotation of the roller. Each cassette includes an elongated bar which can be arranged in facing grooves in brackets extending along the extension of the roller. The spring members are arranged double bent around a locking means extending in the longitudinal direction of the bar. The bar provides a mainly U-shaped cross section including two facing sides and a bottom therebetween. The device according to the invention is characterized in that the two facing sides in the bar are mutually connected by connecting means extending across a section of the bar at a distance from each other along the extension of the bar, by way of which the bar is divided into cells. By the connecting means the U-shaped bar obtains a satisfactory rigidity without being designed with a closed cross section. The dividing into cells permits the spring member
REFERENCES:
patent: 2688762 (1954-09-01), Vose
patent: 2921329 (1960-01-01), Peterson
patent: 3002212 (1961-10-01), Tilgner
patent: 3009184 (1961-11-01), Dolan
patent: 3036323 (1962-05-01), Nelson
patent: 3107382 (1963-10-01), Tilgner
patent: 4077081 (1978-03-01), Drumm
patent: 4302863 (1981-12-01), Droeser
patent: 4485514 (1984-12-01), Droeser
patent: 5383245 (1995-01-01), Droeser
patent: 5445438 (1995-08-01), Drumm
patent: 5490301 (1996-02-01), Droeser
Droeser Walter
Ekholm Hans
Filippa I V aster.ang.s HB
Graham Gary K.
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