Low friction cylinder for manipulators, based on the pantograph principle and equipped with a pneumatic balancer control
AssigneeStahl Aufzge GmbH & Co. KG
InventorsJoachim Doege, Hanns-Dieter Paschke, Ke D. Tran
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Abstract
In a pantograph load handling device having work arms formed of a parallelogram linkage, an improved load cylinder arrangement is provided comprising a flexible diaphragm disposed in a loose support arrangement to afford vertical movement of the load in a more accurate and inexpensive operation than heretofore known.
Claims8
In a load handling mechanism having a horizontal work arm means pivotally carried on a vertical pillar disposed for rotation on a bearing means and a horizontal trackway supporting a roller connected to said work arm means and supported on a guide carriage means engaged with said vertical pillar for vertical movement, the improvement of a load cylinder means for controlling the vertical movement of said trackway, the improvement comprising:
- a flexible expansible diaphragm connected to a pressure agent supply, and
- a support means comprising a cylinder including upper and lower cylinder sections engaging respective upper and lower sides of and enclosing said diaphragm, said upper cylinder section connected to the trackway, and a support post engaging the lower side of said diaphragm.
Dependencies are inferred from the claim text.