DE311361C - - Google Patents
Info
- Publication number
- DE311361C DE311361C DENDAT311361D DE311361DA DE311361C DE 311361 C DE311361 C DE 311361C DE NDAT311361 D DENDAT311361 D DE NDAT311361D DE 311361D A DE311361D A DE 311361DA DE 311361 C DE311361 C DE 311361C
- Authority
- DE
- Germany
- Prior art keywords
- arm
- plow
- spring
- armed
- lever
- 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.)
- Active
Links
- 244000144992 flock Species 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B61/00—Devices for, or parts of, agricultural machines or implements for preventing overstrain
- A01B61/04—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame
- A01B61/044—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis
- A01B61/046—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis the device including an energy accumulator for restoring the tool to its working position
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Es sind Pflüge mit Scharen bekannt, die durch Federdruck in ihrer Arbeitslage gehalten werden und bei Überschreitung einer gewissen Beanspruchung in der Fahrtrichtung nach rückwärts ausweichen, wobei der Federwiderstand durch Verringerung des wirksamen Hebelarmes ständig abnimmt. Die Erfindung betrifft eine Anordnung dieser Art und bietet den Vorteil, daß die das Schar in der Arbeitslage haltendeThere are known plows with shares which are held in their working position by spring pressure and when a certain load is exceeded in the direction of travel backwards evade, the spring resistance by reducing the effective lever arm constantly decreasing. The invention relates to an arrangement of this type and has the advantage that those who hold the flock in the working position
ίο Kraft (Feder) mittels eines Handgriffes ausgeschaltet werden kann, so daß das Schar auch ohne erhebliche Beanspruchung seine Arbeitslage verläßt und nach rückwärts ausweicht. Dabei ist die Anordnung äußerst einfach und bringt noch den weiteren Vorteil mit sich, daß während des Ausweichens des Schars das Moment des Widerstandes möglichst lange annähernd gleich groß bleibt und erst am Ende des Ausschlages zu Null wird.ίο Power (spring) switched off by means of a handle can be so that the flock leaves its working position without significant stress and dodges backwards. The arrangement is extremely simple and has the further advantage that while the crowd evasive, approximate the moment of resistance for as long as possible remains the same and only becomes zero at the end of the deflection.
Die Zeichnung stellt ein Ausführungsbeispiel schematisch dar.The drawing shows an exemplary embodiment schematically.
• Der Grindel c des Pflugkörpers c1 ist um die Achse δ drehbar und bildet mit dem kurzen, zahnartigen Arm d einen zweiarmigen Hebel, auf den der ebenfalls zahnartig gestaltete kurze Arm i eines zweiarmigen Handhebels β einwirkt. Dieser Handhebel wird durch eine am Gestell a befestigte Feder f derart, beeinflußt, daß er den Pflugkörper in dieArbeitslage(Fig.i) drückt.• The leg c of the plow body c 1 is rotatable about the axis δ and forms with the short, tooth-like arm d a two-armed lever on which the also tooth-like shaped short arm i of a two-armed hand lever β acts. This hand lever is influenced by a spring f attached to the frame a in such a way that it presses the plow body into the working position (Fig.i).
Seine Bewegung wird durch einen Anschlag g begrenzt. In dieser Lage ist die Richtung der von dem Arm i auf den Arm A ausgeübten Kraft eine solche, daß sie in bezug auf den Drehpunkt b mit einem beträchtlichen Hebelarm wirkt. Weicht der Pflugkörper infolge von Bodenwiderständen zurück, so folgt der Arm i des Hebels e dem Arm d, die Feder f wird gespannt, und der Hebelarm der vom Arm i auf den Arm d geäußerten Kraft in bezug auf den Drehpunkt b wird kürzer, indem die Kraftrichtung sich dem Drehpunkt b nähert. Die Abnahme dieses Hebelarmes unter gleichzeitiger Zunahme der Federspannung bedeutet ein annäherndes Gleichbleiben des Kraftmomentes. Erst wenn der Pflugkörper seinen 4^ größten Ausschlag gemacht hat, wie er in der Fig. 2 dargestellt ist, geht die Richtung der erwähnten Kraft durch den Drehpunkt b, und das von der Feder ausgeübte Kraftmoment wird trotz der gesteigerten Federspannung gleich Null, womit also der Widerstand gegen das weitere Ausweichen aufhört.Its movement is limited by a stop g. In this position the direction of the force exerted by the arm i on the arm A is such that it acts with a considerable lever arm with respect to the pivot point b. If the plow body recedes as a result of ground resistance, the arm i of the lever e follows the arm d, the spring f is tensioned, and the lever arm of the force exerted by the arm i on the arm d in relation to the pivot point b becomes shorter by the Direction of force approaches pivot point b . The decrease in this lever arm with a simultaneous increase in the spring tension means that the moment of force remains approximately the same. Only when the plow body has made his 4 ^ largest deflection, as shown in FIG. 2, the direction of said force is b by the pivot point, and the moment of force exerted by the spring is in spite of the increased spring tension is zero, which thus the resistance to further evasion ceases.
Soll der Pflugkörper gegen ein selbsttätiges Rückkehren in seine Arbeitslage gesichert werden, so kann er durch einen Vorsteckstift h oder ähnliche Mittel festgehalten werden.If the plow body is to be secured against an automatic return to its working position, it can be held in place by a locking pin h or similar means.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE311361C true DE311361C (en) |
Family
ID=564355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT311361D Active DE311361C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE311361C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2621575A (en) * | 1944-11-07 | 1952-12-16 | Oeverums Bruk Ab | Depth control of tractor-carried agricultural implements |
DE1007095B (en) * | 1954-04-10 | 1957-04-25 | Eberhardt Geb | Triggering device for individual plow bodies on cultivation plows |
-
0
- DE DENDAT311361D patent/DE311361C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2621575A (en) * | 1944-11-07 | 1952-12-16 | Oeverums Bruk Ab | Depth control of tractor-carried agricultural implements |
DE1007095B (en) * | 1954-04-10 | 1957-04-25 | Eberhardt Geb | Triggering device for individual plow bodies on cultivation plows |
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