DE236723C - - Google Patents
Info
- Publication number
- DE236723C DE236723C DENDAT236723D DE236723DA DE236723C DE 236723 C DE236723 C DE 236723C DE NDAT236723 D DENDAT236723 D DE NDAT236723D DE 236723D A DE236723D A DE 236723DA DE 236723 C DE236723 C DE 236723C
- Authority
- DE
- Germany
- Prior art keywords
- boom
- lever
- pulling element
- curve
- load
- 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
- 239000002965 rope Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/06—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
- B66C23/08—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths
- B66C23/10—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths the paths being substantially horizontal; Level-luffing jib-cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
- B66C2700/0307—Cranes in which it is essential that the load is moving horizontally during the luffing movement of the arm or jib
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Erfindung betrifft einen Auslegerkran, bei dem das Hubseil über einen am Ende des Auslegers gelagerten Hebel geführt ist, der durch ein Zugorgan mit dem Krangestell in Verbindung steht. Gemäß der Erfindung ist der Hebel mit einer Kurve ausgestattet, auf die sich das nach dem Krangestell gehende Zugorgan aufwickelt, wenn der Ausleger hereingeholt wird. Durch entsprechende AusbildungThe invention relates to a jib crane in which the hoist rope via a at the end of the Boom mounted lever is guided by a pulling element with the crane frame in Connection. According to the invention, the lever is equipped with a curve on which winds the pulling element going after the crane frame when the boom is brought in will. Through appropriate training
ίο der Kurve läßt sich in einfachster Weise und ohne Erhöhung des Krangestelles erreichen, daß die Last beim Hereinholen des Auslegers sich in einer bestimmten Bahn, z. B. also in einer vollkommen wagerechten Linie bewegt, so daß sie beim Hereinholen nicht auch noch gleichzeitig gehoben zu werden braucht.ίο the curve can be in the simplest possible way and without increasing the crane frame that the load can be achieved when the boom is brought in in a certain path, e.g. B. thus moved in a perfectly horizontal line, so that it does not have to be lifted at the same time when it is brought in.
Eine Ausführungsform der Erfindung ist auf der Zeichnung dargestellt. In dem Krangestell α ist der Ausleger b in gewöhnlicher Weise gelagert. Er trägt am oberen Ende einen Hebel c, über den das zum Lasthaken führende Hubseil d geführt ist, das vermittels einer Winde e angezogen und nachgelassen werden kann, je nachdem die Last gehoben oder gesenkt werden soll.An embodiment of the invention is shown in the drawing. The boom b is mounted in the usual way in the crane frame α. At the upper end it carries a lever c, via which the hoisting rope d leading to the load hook is guided, which can be tightened and released by means of a winch e , depending on whether the load is to be raised or lowered.
Der Hebel c ist mit dem Krangestell durch ein Zugorgan f verbunden und gemäß der vorliegenden Erfindung am hinteren Ende mit einer Kurve g ausgestattet, auf die sich das Zugorgan f beim Hereinholen des Auslegers in die punktiert gezeichnete Lage aufwickeln kann. Da sich beim Hereinholen des Auslegers die Entfernung zwischen den Befestigungspunkten h und i des Zugorgans f verkürzt, so schwingt der Hebel c unter der Einwirkung der Last mit dem vorderen Ende nach unten, wobei sich das Zugorgan f auf die Kurve g aufwickelt. Dieses Aufwickeln erfolgt nach Maßgabe der Gestaltung der Kurve g und bestimmt den Betrag, um den sich die Last relativ zum höchsten Punkt des Auslegers senken kann. Es ist ohne weiteres ersichtlich, daß sich die Kurve g so ausbilden läßt, daß das Senken der Last beim Hereinholen des Auslegers b in demselbe Maße erfolgt, wie der höchste Punkt des Auslegers ansteigt, woraus folgt, daß sich die Last beim Hereinholen auf einer vollkommen wagerechten Linie bewegt.The lever c is connected to the crane frame by a pulling element f and, according to the present invention, is equipped at the rear end with a curve g , onto which the pulling element f can wind up when the boom is brought into the position shown in dotted lines. Since the distance between the attachment points h and i of the pulling element f is shortened when the boom is brought in, the front end of the lever c swings downward under the action of the load , the pulling element f winding up on the curve g. This winding takes place in accordance with the design of curve g and determines the amount by which the load can be reduced relative to the highest point of the boom. It is readily apparent that the curve g can be designed in such a way that the lowering of the load when hauling in the boom b takes place to the same extent as the highest point of the boom rises, from which it follows that the load when hauling in is on a perfect level moves horizontally.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE236723C true DE236723C (en) |
Family
ID=496388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT236723D Active DE236723C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE236723C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1139959B (en) * | 1956-08-04 | 1962-11-22 | Wyhlen Ag Eisenbau | Double link luffing crane |
| DE2923146A1 (en) * | 1979-06-07 | 1980-12-18 | Hans Tax | ADJUSTABLE CRANE BOOM SYSTEM |
-
0
- DE DENDAT236723D patent/DE236723C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1139959B (en) * | 1956-08-04 | 1962-11-22 | Wyhlen Ag Eisenbau | Double link luffing crane |
| DE2923146A1 (en) * | 1979-06-07 | 1980-12-18 | Hans Tax | ADJUSTABLE CRANE BOOM SYSTEM |
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