DK152300B

DK152300B - SNEELOV

Info

Publication number: DK152300B
Application number: DK334880AA
Authority: DK
Inventors: Bjoern Olav Hansen
Original assignee: Steinsland Bjarne
Priority date: 1979-02-05
Filing date: 1980-08-04
Publication date: 1988-02-15
Also published as: NO790355L; WO1980001579A1; FI800312A; NO144712B; SE420855B; DK152300C; FI69167C; SE8005524L; FI69167B; DK334880A; NO144712C

Description

DK 152300 BDK 152300 B

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Den foreliggende opfindelse angår en sneplov, hvor den øvre kant af sneplovens blad er udformet med et på forsiden af bladet forløbende, på langs åbent rør.The present invention relates to a snow plow, in which the upper edge of the blade of the snow plow is formed with a longitudinally open tube extending on the front side of the blade.

5 US patentskrift nr. 3.115.715 omtaler en sneplov, hvor der langs den øverste kant af plovbladet og på oversiden af dette er fastgjort en kappe, som i hele sin længde er åben nedadtil, og hvor der under kappen er anbragt en roterende skrue, som drives af en 10 motor, hvilken skrue er anbragt med det formål at opfange og bortlede sne, som ellers ville være blevet presset op over plovbladets øverste kant. Dette arrangement fungerer formentlig stort set tilfredsstillende, når sneploven fremføres med moderat 15 hastighed, og sneen ikke har en let konsistens. Når en sneplov, som den fra det amerikanske patentskrift kendte, fremføres med en hastighed, som det er ønskeligt at opretholde, især når sneen har en let konsistens, vil det overtryk, som opbygges i kappen, pres-20 se snefyldt luft fremad forbi kappens forkant, og den snefyldte luft vil derfra hvirvles op og forhindre førerens udsyn og derved tvinge ham til at reducere hastigheden.U.S. Pat. No. 3,115,715 discloses a snow plow in which a sheath is attached along the upper edge of the plow blade and on the upper side thereof, the entire length of which is open downwards, and in which a rotating screw is arranged below the sheath. which is driven by a motor, which screw is arranged for the purpose of catching and discharging snow which would otherwise have been pressed up over the upper edge of the plow blade. This arrangement probably works largely satisfactorily when the snow plow is advanced at a moderate speed and the snow does not have a light consistency. When a snow plow, such as the one known from the U.S. patent, is advanced at a speed which it is desirable to maintain, especially when the snow has a light consistency, the overpressure which builds up in the mantle will push snow-filled air forward past the mantle. leading edge, and the snow-filled air will from there swirl up, obstructing the driver's view, thereby forcing him to reduce speed.

25 Ovennævnte ulempe medfører, at man med de kendte sneplove af den omhandlede art må holde meget lavere hastighed end det ellers ville være naturligt, samtidig med at man netop af denne grund gerne holder lidt for høj hastighed, således at sigten bliver dår-30 lig og anstrengelsen for føreren stor.25 The above-mentioned disadvantage means that with the known snow plows of the type in question one has to keep a much lower speed than it would otherwise be natural, at the same time as precisely for this reason one likes to keep a little too high speed, so that the visibility becomes poor. and the effort for the driver great.

Opfindelsen har til formål at tilvejebringe en sneplov af denne art, som eliminerer ovennævnte ulempe.The object of the invention is to provide a snow plow of this kind which eliminates the above-mentioned disadvantage.

DK 152300BDK 152300B

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Formålet opnås ved, at hvert rør har en langsgående spalte inde ved overkanten af plovbladet, idet tværsnittet af røret i hovedsagen beskriver en cirkel-5 bue, hvis ene ende er sammenfaldende med plovbladets overkant, og hvis anden ende ligger mellem plovbladet og et lodret plan gennem rørets centerlinie, når sneploven står på et vandret underlag.The object is achieved in that each pipe has a longitudinal slot inside at the upper edge of the plow blade, the cross-section of the pipe mainly describing an arc of a circle, one end of which coincides with the upper edge of the plow blade, and whose other end lies between the plow blade and a vertical plane through the center line of the pipe when the snow plow is standing on a horizontal surface.

10 Herved opnås , at der ved fremdrift presses luft og sne op i røret, og det føres ind i en turbulent strøm, som arbejder sig ud til siden ved hjælp af stadig tilførsel af nye luftmængder under overtryk, hvorefter luft og sne kastes ud af røret med stor 15 kraft og forstærker det normale udkast fra ploven.In this way, air and snow are forced up into the pipe during propulsion, and it is introduced into a turbulent stream which works its way to the side by means of a constant supply of new air volumes under overpressure, after which air and snow are thrown out of the pipe. with large 15 force and amplifies the normal draft from the plow.

En videreudvikling af opfindelsen er ejendommelig ved, at røret ved plovens forreste ende, på tværs af kørselsretningen har indskudt et relativ kort og i 20 hovedsagen lige forbindelsesstykke med i hovedsagen samme udformning som røret.A further development of the invention is characterized in that the pipe at the front end of the plow, across the direction of travel, has inserted a relatively short and substantially straight connecting piece with substantially the same design as the pipe.

Derved opnås en gunstigere turbulensdannelse ved sneplovens spids, samtidig med at denne udformning af 25 trafiksikkerhedsmæssige hensyn er at foretrække.Thereby a more favorable turbulence formation is obtained at the tip of the snow plow, at the same time as this design is preferable for traffic safety reasons.

En udførelsesform for en sneplov ifølge opfindelsen er vist skematisk på tegningen, hvor 30 fig. 1 viser sneploven i form af en spidsplov, fig. 2 viser et snit A-A på fig. 1 og med indtegnede strømningslinier.An embodiment of a snow plow according to the invention is shown schematically in the drawing, in which fig. 1 shows the snow plow in the form of a pointed plow, fig. 2 shows a section A-A in fig. 1 and with drawn flow lines.

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På tegningen angiver henvisningstallene 1 og 2 sneplovens to blade/ til hvis Øverste kant og på forsiden af bladene 1, 2 er monteret et åbent V-formet rør 3 med en langsgående spalte 4 inde ved plovbladet 5 1, 2, hvilken cirkulær udstrækning af den langsgående spalte i sin helhed ligger inden for et lodret plan 6 gennem rørets centerlinie, når sneploven står på et vandret underlag. Sneploven har ved sin forreste ende, på tværs af kørselsretningen, indskudt et rela-10 tivt kort og i hovedsagen lige forbindelsesstykke 5 imellem de to rør 3, hvilket forbindelsesstykke har samme profil som røret 3.In the drawing, reference numerals 1 and 2 indicate the two blades of the snow plow / to whose upper edge and on the front of the blades 1, 2 an open V-shaped tube 3 is mounted with a longitudinal slot 4 inside the plow blade 5 1, 2, which circular extension of the longitudinal gap in its entirety lies within a vertical plane 6 through the center line of the pipe when the snow plow stands on a horizontal surface. The snow plow has at its front end, across the direction of travel, inserted a relatively short and substantially straight connecting piece 5 between the two pipes 3, which connecting piece has the same profile as the pipe 3.

15 20 25 3015 20 25 30

Claims

Snow plow, wherein the upper edge of the snow plow leaves (1, 2) is formed with a longitudinally open tube (3) extending on the front of the leaves, characterized in that each tube has a longitudinal slot (4 ) inside the upper edge of the plow blade (1, 2), the cross section of the pipe (3) substantially describing an arc of a circle, one end of which coincides with the upper edge of the plow blade and whose other end lies between the plow blade and a vertical plane (6) the center line of the pipe (3) when the snow plow is on a horizontal surface.

Snow plow according to claim 1, wherein the blades (1, 2) of the plow and thus the pipes (3) are arranged in a V-shape relative to each other, characterized in that the pipe at the front end of the plow has interposed a relative transverse direction of travel. short and substantially straight connecting piece (5) between the two pipes (3) with substantially the same design as the pipe (3).