Device for compensating the weight of a suspended load
AssigneeCarl Stahl Kromer GmbH
InventorsMohammad S. Achtari, Thomas Steinle
Life of this patent
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AssigneeCarl Stahl Kromer GmbH
InventorsMohammad S. Achtari, Thomas Steinle
Estimating the term…
A device (1) that compensates the weight of a suspended load, for example a tool or welding tongs, is provided as a spring tensioner with at least one barrel (4) or supporting wire that can be reeled off a barrel (3) against the force of a spring (2). The barrel (3) is supported on a shaft (6), to which the spring (2) engages directly with its interior end or via a sheath connected to the shaft (6), while the opposite exterior end of the spring (2) is mounted to the barrel (3) at the inside. A shaft drive (7) can be activated to change the pull force at the spring (2) via the shaft (6). The spring (2) is connected to the shaft drive (7) or to a drive wheel (8) allocated thereto via a freewheel. The freewheel is embodied with a catching latch arrangement (9) which, in the blocking direction has at least three or four latches (10) that simultaneously engage the recesses or catching recesses (11) which receive them, said latches being arranged at the inside at a circular drive wheel (12) allocated to a drive wheel (8). An interior body (13) of the catching latch arrangement located inside the circular drive wheel (12) supports the latches (10) and is simultaneously a part of a slide bearing for the circular drive wheel (12) for rotation in the freewheel direction. In this way, in a small space strong forces can be transferred.
A device (1) for compensating the weight of a suspended load comprising a counterweight or spring tensioner including at least one spring (2) opposing a force, a rope pull (4) or supporting wire to be reeled off a barrel (3), with the barrel (3) being supported for rotation on a shaft (6), which the spring (2) directly engages with its internal end or via a sheath connected to the shaft (6), while an external end of the spring (2) engages the barrel (3), and a shaft drive (7) for changing a supporting force acts via the shaft (6) to the spring (2) and the spring (2) with the shaft drive (7) and a drive wheel (8) arranged on the shaft (6) allocated to the shaft drive being connected via a freewheel, which when the spring (2) is relaxed prior to its loosening or disengagement of the internal end is activated in a manner of a freewheel, the freewheel includes catching latch arrangement (9) which, in a blocking direction has at least three latches (10) that simultaneously engage recesses (11) which receive the latches in the blocking direction, the recesses (11) are arranged at an inside of a circular drive wheel (12) allocated to the drive wheel (8) and an internal body (13) of the catching latch arrangement (9) is arranged inside the circular drive wheel (12), pivotally supporting the latches (10), simultaneously being a part of a slide bearing for the circular drive wheel (12) that is rotational in a freewheel direction.
Dependencies are inferred from the claim text.