DE474326C - Gripper wheels for road tractors - Google Patents
Gripper wheels for road tractorsInfo
- Publication number
- DE474326C DE474326C DEH113189D DEH0113189D DE474326C DE 474326 C DE474326 C DE 474326C DE H113189 D DEH113189 D DE H113189D DE H0113189 D DEH0113189 D DE H0113189D DE 474326 C DE474326 C DE 474326C
- Authority
- DE
- Germany
- Prior art keywords
- gripper
- road tractors
- wheels
- road
- gripper wheels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
- B60C27/02—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over restricted arcuate part of tread
- B60C27/04—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over restricted arcuate part of tread the ground-engaging part being rigid
- B60C27/045—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels extending over restricted arcuate part of tread the ground-engaging part being rigid involving retractable devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Description
Greiferräder für Straßenzugmaschinen Bei elastisch bereiften Greiferrädern von Kraftfahrzeugen, insbesondere Straßenzugmaschinen, ist es bekannt, die Greifer als gemeinsam herausschwenkbare einarmige Hebel seitlich am Rade anzuordnen. Bei den bisher bekannt gewordenen Ausführungen dieser Art Greiferräder sind die Greifer während der Straßenfahrt so eingezogen, daß sie in dieser Ruhelage eine Verbreiterung der Lauffläche des eigentlichen Laufrades bilden, während beim Fahren auf weichem Boden die Greifer über den Umfang des Laufrades hinaus ausgeschwenkt werden und als Zacken wirkend in den Boden eingreifen. Hierbei ist ein Nachteil, daß die Wirkung der Greifer bei leichtem Boden nicht eintritt, sondern die Greifer nur in dem Boden totlaufen.Grab wheels for road tractors For grab wheels with elastic tires of motor vehicles, especially road tractors, it is known to use the gripper to be arranged as a single-armed lever that can be swiveled out together on the side of the wheel. at the previously known designs of this type of gripper wheels are the grippers so drawn in while driving on the road that it widened in this rest position the tread of the actual wheel while riding on soft Bottom the grippers are swung out beyond the circumference of the impeller and act as spikes in the ground. A disadvantage here is that the effect the grapple does not enter on light soil, but only the grapple in the ground run dead.
Die Erfindung vermeidet diesen Übelstand, indem sie die Greifer arri Rade bei Straßenfahrt in solcher Weise anordnet, daß die Greifer in der Ruhelage innerhalb des Umfanges des Laufrades zurückgezogen liegen, also überhaupt keine Wirkung ausüben, in ausgeschwenkter, also Arbeitslage, jedoch über den Umfang des Rades hinausragen und dabei eine nahezu ununterbrochene Lauffläche bilden, die infolge des Gewichtes der Maschine das Erdreich- fest zusammendrückt,' so daß die auf den Greiferkörpern vorgesehenen kurzen Greifspitzen im Boden auch wirklich einen Reibungswiderstand finden.The invention avoids this drawback by arri the gripper Rade when driving on the road is arranged in such a way that the gripper is in the rest position are withdrawn within the circumference of the impeller, i.e. none at all Have an effect in the swiveled-out, i.e. working position, but beyond the scope of the Rades protrude and thereby form an almost uninterrupted running surface, which as a result the weight of the machine compresses the soil firmly, 'so that the on the Gripper bodies provided short gripping tips in the ground also really have a frictional resistance Find.
In der Zeichnung ist ein derart ausgeführtes Greiferrad in Seitenansicht, in Abb. z in Arbeitslage, in Abb. a in Ruhestellung, dargestellt. Die als einarmige gekrümmte Hebel ausgebildeten Greiferkörper a sind mit ihrem am einen Ende vorgesehenen Drehpunkt b am Radkörper c, mit )ihrem andern Ende an die Stelze d angelenkt, welche ihrerseits an dem auf der Radnabe drehbaren Verstellring e angreift. Durch Drehung dieses gezahnten Ringes vermittels Zahnrad und Kurbel werden sämtliche Greifer gleichzeitig und gleichmäßig in dem einen oder anderen Sinne verstellt. Der Drehpunkt b steht so weit gegenüber demRadumfang zurück, daß die Greiferkörper im eingezogenen Zustande nicht den Boden berühren, in Arbeitsstellung indes eine möglichst lange, dem Radumfang konzentrische Lauffläche ergeben, deren Durchmesser gleich oder größer als der Durchmesser der .Gummibereifung ist.The drawing shows a gripper wheel designed in this way in a side view, in Fig. z in the working position, in Fig. a in the rest position. The one-armed curved levers formed gripper bodies a are provided with their at one end Pivot point b on the wheel body c, with) its other end articulated to the stilt d, which in turn engages the adjusting ring e rotatable on the wheel hub. By turning This toothed ring by means of a gearwheel and crank, all grippers become at the same time and adjusted evenly in one sense or another. The pivot point b is so far back against the wheel circumference that the gripper body in the retracted state do not touch the ground, but in the working position as long as possible, the circumference of the wheel result in concentric running surface whose diameter is equal to or greater than the diameter which is rubber tires.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH113189D DE474326C (en) | Gripper wheels for road tractors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH113189D DE474326C (en) | Gripper wheels for road tractors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE474326C true DE474326C (en) | 1929-04-02 |
Family
ID=7171747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH113189D Expired DE474326C (en) | Gripper wheels for road tractors |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE474326C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2610898A (en) * | 1950-07-06 | 1952-09-16 | George L L Smith | Tractor lug |
US3995909A (en) * | 1974-01-15 | 1976-12-07 | Lely Cornelis V D | Vehicle anti-skid mechanisms |
FR2408472A1 (en) * | 1977-11-09 | 1979-06-08 | Niveau Ag | ANTI-SLIP DEVICE INTENDED TO IMPROVE THE GRIP OF VEHICLE WHEELS ON ICE AND SNOWY SURFACES |
CN105620188A (en) * | 2016-03-29 | 2016-06-01 | 邹立新 | Cross-country vehicle wheel |
-
0
- DE DEH113189D patent/DE474326C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2610898A (en) * | 1950-07-06 | 1952-09-16 | George L L Smith | Tractor lug |
US3995909A (en) * | 1974-01-15 | 1976-12-07 | Lely Cornelis V D | Vehicle anti-skid mechanisms |
FR2408472A1 (en) * | 1977-11-09 | 1979-06-08 | Niveau Ag | ANTI-SLIP DEVICE INTENDED TO IMPROVE THE GRIP OF VEHICLE WHEELS ON ICE AND SNOWY SURFACES |
CN105620188A (en) * | 2016-03-29 | 2016-06-01 | 邹立新 | Cross-country vehicle wheel |
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