Roller blind, process for manufacturing same and roller blind system with such a roller blind
AssigneeHunter Douglas Industries Switzerland GmbH
InventorsElmar Taubenrauch, Guido Tants
Life of this patent
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Abstract
A roller blind (10) with a curtain that can be wound up on a winding shaft and can be unwound against a spring tension, with a spring (31) for generating the spring tension. The spring (31) is configured such that the curtain remains in each unwound position in a self-retaining manner. A manufacturing effort can be reduced during the assembly by the spring drive being assembled from one or more modularly connected, prefabricated partial springs (31).
Claims22
A roller blind with a curtain, which can be wound up on a winding shaft and can be unwound against a spring tension, the roller blind comprising:
- a spring for generating the spring tension;
- at least one fastening piece configured to interact with a wall bracket;
- a setting device associated with the at least one fastening piece, the setting device being configured for setting a pretension of the spring, wherein the setting is carried out such that locking is possible several times;
- a snap ring;
- and
- a profiled grooved shaft with a longitudinal groove, which is functionally connected with the setting device and adapted to rotate in unison, wherein:
- the profiled grooved shaft is held with the snap ring;
- the spring is configured such that the curtain remains self-retaining in each unwound position;
- and
- the spring comprises one or more modularly prefabricated partial springs, each of the one or more modularly prefabricated partial springs comprising a stock partial spring length.
A roller blind with a curtain, which can be wound up on a winding shaft and can be unwound against a spring tension the roller blind comprising:
- a spring for generating the spring tension, the spring being configured such that the curtain remains self-retaining in each unwound position, the spring comprising one or more modularly prefabricated partial springs, each of the one or more modularly prefabricated partial springs comprising a stock partial spring length;
- at least one fastening piece configured to interact with a wall bracket;
- a setting device associated with the fastening piece, the setting device being configured for setting a pretension of the spring, wherein the setting is carried out such that locking is possible several times;
- and
- a driving head arranged adjacent to the fastening piece, wherein the driving head has a thread, on which thread a nut is configured to connect to the winding shaft and configured to rotate in unison therewith.
A process for manufacturing a roller blind for a curtain, which can be wound up on a winding shaft and can be unwound against a spring tension, the roller blind comprising a spring for generating the spring tension, wherein the spring is configured such that the curtain remains self-retaining in each unwound position, the process comprising the steps of:
- providing the spring as one or more modularly prefabricated partial springs;
- and
- selecting a number of partial springs from the one or more modularly prefabricated partial springs, each of the one or more modularly prefabricated partial springs comprising a stock partial spring length, wherein:
- at least one fastening piece is arranged at an end of the roller blind;
- the at least one fastening piece interacts with a wall bracket;
- a setting device is associated with the fastening piece for setting a pretension of the spring;
- the pretension setting is carried out such that locking is possible several times;
- a profiled grooved shaft with a longitudinal groove is functionally connected with the setting device so as to rotate in unison therewith;
- and
- the profiled grooved shaft is held to the setting device with a snap ring.
A process for manufacturing a roller blind for a curtain, which can be wound up on a winding shaft and can be unwound against a spring tension, the roller blind comprising a spring for generating the spring tension, wherein the spring is configured such that the curtain remains self-retaining in each unwound position, the process comprising the steps of:
- providing the spring as one or more modularly prefabricated partial springs;
- and
- selecting a number of partial springs from the one or more modularly prefabricated partial springs, each of the one or more modularly prefabricated partial springs comprising a stock partial spring length, wherein a driving head is arranged adjacent to a fastening piece, wherein the driving head has a thread, on which thread a nut is configured to connect to the winding shaft and configured to rotate in unison therewith.
Dependencies are inferred from the claim text.