DE647633C - Self-gripper with a large number of arms arranged in a star shape - Google Patents
Self-gripper with a large number of arms arranged in a star shapeInfo
- Publication number
- DE647633C DE647633C DEL87449D DEL0087449D DE647633C DE 647633 C DE647633 C DE 647633C DE L87449 D DEL87449 D DE L87449D DE L0087449 D DEL0087449 D DE L0087449D DE 647633 C DE647633 C DE 647633C
- Authority
- DE
- Germany
- Prior art keywords
- gripper
- self
- arms
- star shape
- large number
- 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
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/04—Tine grabs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
Description
Bei Selbstgreifern mit einer Vielzahl von sternförmig angeordneten Armen ist man bestrebt, die Anordnung so zu treffen, daß jeder Arm sich der Form des Gutes entsprechend einstellen kann. Bei einem bekannten Greifer dieser Art trägt jeder Greiferarm eine Rolle für das Schließseil, das zwischen dem im Greiferkopf und an den Armen befindlichen Rollen hin und her geführt ist.In the case of self-grippers with a large number of arms arranged in a star shape, the aim is to to make the arrangement so that each arm can adjust to the shape of the goods. With a well-known Each gripper arm carries a role for the closing cable, which is between the rollers located in the gripper head and on the arms is guided back and forth.
»ο Da so jeder Arm für sich gesteuert wird, können die einzelnen Arme zurückbleiben oder den anderen Armen gegenüber voreilen, wenn die Form der Last es notwendig macht. Ein unterer gemeinschaftlicher Rollenkasten ist bei diesem Greifer nicht vorhanden.»Ο Since each arm is controlled individually, the individual arms can lag behind or advance over the other arms, when the shape of the load makes it necessary. A lower shared role box is not available with this gripper.
Bei einem anderen Greifer der genannten Bauart sind die Arme an einem Rollenkasten angelenkt, das Schließseil bildet zwischen dem oberen im Greiferkopf untergebrachten Rollenblock und dem unteren Rollenblock einen Flaschenzug. Im Betrieb kann sich der untere Rollenblock schief stellen, so daß dadurch die Beweglichkeit der Greifarme erhöht wird. Um bei einem Greifer dieser Art die Einstellmöglichkeit der einzelnen Arme noch weiter zu erhöhen, sind die Schließstangen federnd ausgebildet worden. Bei federnden Schließstangen ist die Möglichkeit des Ausweichens nach der Seite verhältnismäßig gering; außerdem können die Schließstangen bei zu starker Beanspruchung leicht brechen.In another gripper of the type mentioned, the arms are on a roller box hinged, the closing rope forms between the upper one accommodated in the gripper head Pulley block and the lower pulley block a pulley block. During operation, the Set the lower roller block at an angle, thereby increasing the mobility of the gripping arms will. In order to be able to adjust the individual arms in a gripper of this type To increase it even further, the locking rods have been designed to be resilient. With springy Closing bars is proportionate to the possibility of sidestepping small amount; in addition, the locking rods can easily break if they are used too heavily.
Die Erfindung bezieht sich auf einen Selbstgreifer der zuletzt erwähnten Gattung, also auf eine Einrichtung, bei der die Arme an einem gemeinsamen unteren Rollenkasten angelenkt sind. Die Erfindung besteht darin, daß die Greifarme am unteren Rollenblock federnd abgestützt sind.The invention relates to a self-gripper of the last mentioned type, in other words, to a device in which the arms are connected to a common lower roller box are hinged. The invention consists in that the gripping arms on the lower roller block are resiliently supported.
In der Zeichnung ist ein Ausführungsbeispiel nach der Erfindung dargestellt. In the drawing, an embodiment according to the invention is shown.
An dem Greiferkopf / sind die Schließ- * stangen d angelenkt, an deren unteren Enden die Greifarme c gelenkig angeschlossen sind. Mit ihren Gelenkeng- greifen die Armee an Kappen b an. Zwischen den oberen Flächen *5 der Kappen b und dem unteren Rollenkasten e sind Druckfedern α angeordnet. Wie die Zeichnung erkennen läßt, werden beim Greifen einer Last die Federn α unter Druck gesetzt. The locking rods d are hinged to the gripper head / and the gripping arms c are articulated to their lower ends. With their joints, the army attack caps b . Compression springs α are arranged between the upper surfaces * 5 of the caps b and the lower roller box e. As the drawing shows, when a load is gripped, the springs α are put under pressure.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL87449D DE647633C (en) | Self-gripper with a large number of arms arranged in a star shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL87449D DE647633C (en) | Self-gripper with a large number of arms arranged in a star shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE647633C true DE647633C (en) | 1937-07-09 |
Family
ID=7286319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEL87449D Expired DE647633C (en) | Self-gripper with a large number of arms arranged in a star shape |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE647633C (en) |
-
0
- DE DEL87449D patent/DE647633C/en not_active Expired
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