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US 11,230,884 B2Granted
Drive system driving a screen, and apparatus comprising such a system
AssigneeSomfy Activites SA
InventorAdrien Brondex
Life of this patent
Estimating the term…
Abstract
Disclosed is a drive system for driving a screen, that includes an actuator designed to drive in rotation a winding tube acting on the screen, and a compensation spring which is mounted around the actuator and has several turns formed by winding a wire. The drive system includes at least one ring made of plastic material that is placed between two adjacent turns of the compensation spring, and an external radius of the ring is larger than a maximum external radius of the compensation spring.
Claims22
A drive system for driving a screen, comprising:
- an actuator configured to drive in rotation a winding tube acting on the screen;
- a compensation spring, which is mounted around the actuator and formed by a wire that is wound to have plural turns;
- and
- at least one ring made of plastic material and placed between two adjacent turns of the compensation spring,
- wherein an external radius of the ring is greater than a maximum external radius of the compensation spring.
2 more elements
Dependencies are inferred from the claim text.