Weight compensation device of a lifting door with at least one compression spring
OwnerGabrijel Rejcinventor
Life of this patent
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Abstract
The invention relates to a weight compensation device for a drive of a lifting door, for the position-dependent compensation of the weight force of a door leaf of the lifting door, with a force transmission unit which can be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided which is arranged in such a way that it supports the opening movement. The invention also relates to a lifting door, in particular an industrial lifting door, which has a door leaf, with a drive, such as a motor, and with a weight compensation device according to the invention.
Claims14
A weight compensation device for a drive of a lifting door for position-dependent compensation of a weight force of a door leaf of the lifting door comprising a drive shaft, which is configured to be coupled to the drive in order to carry out an opening movement which raises the door leaf and a closing movement which lowers the door leaf, wherein at least one compression spring is provided and arranged such that the compression spring supports the opening movement, and the compression spring is arranged in a hollow-cylindrical guide element, characterized in that the hollow-cylindrical guide element is rotatably attached to a mount for supporting a rotary motion of the drive shaft, and wherein the compression spring is supported on a rotatable base part and on an adjusting element, in a force transmitting manner, wherein the rotatable base part is fixed with respect to the hollow-cylindrical guide element such that the base part and the hollow-cylindrical guide element rotate together, and the adjusting element is translationally movable relative to the hollow-cylindrical guide element.
Dependencies are inferred from the claim text.