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Cord winder for a window-covering device

A technology of covering device and rope reel, applied in the field of rope reel

Inactive Publication Date: 2015-05-13
SOMFY SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, improper motion is not a concern, but the above problems may simply arise from a hard spot in the device channel that develops over time

Method used

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  • Cord winder for a window-covering device
  • Cord winder for a window-covering device
  • Cord winder for a window-covering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention greatly improves upon prior art cord reels for window coverings through the use of rotating rollers which are arranged in direct contact with the initial winding loop.

[0041] figure 1 The rope reel 1 according to the invention is shown in isometric view. As described in the prior art, a cord reel is used to wind the string 40 and to be arranged in the case of a window covering, not shown.

[0042] The rope reel has a support 2 forming a first bearing, and a second bearing 3 connected to said support by a seat 4 . The support is fixed on the base 5 . A frame 6 is mounted on said support to allow the assembly of several components on said support. The reel 7 is supported by the supporting member and the second bearing, and is movable around the first axis of rotation AA'. Alternatively, the support also forms the base.

[0043] figure 2 is a partially exploded isometric illustration of a rope reel, image 3 yes figure 2 Assembly drawing o...

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PUM

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Abstract

The invention relates to a cord winder (1) for a window-covering device, said cord winder including: a drum (7) for winding a cord (40), said drum being rotatable around a first rotationally symmetrical axis (A-A′); and a means (12, 13b) for guiding the cord to the winding drum, the winding drum being rotatably mounted in a holder (2). Said cord winder is characterized in that it includes a rotatable roller (14) that is mounted onto the holder along a second rotationally symmetrical axis (B-B′). Said cord winder is moreover characterized in that it includes a friction area (23) wherein at least one coil of the cord, wound onto the winding drum, is in contact with the rotatable drum.

Description

technical field [0001] The present invention relates to cord reels for window coverings. Background technique [0002] Rope reels are equipped with sunshade, shade or decorative devices, which are arranged in front of glass windows, also known as "window covering devices". These devices are Venetian blinds, store bateau, pleated, store bouillonné or "Roman shade" types. In a typical configuration of such devices, a plurality of rope reels are arranged in a housing, which can be driven simultaneously by a common drive shaft by means of a hand winch or an electric motor. The string is fixed to the carrying pole by one end, and the shade, decoration or shade is spread out in the space between the carrying pole and the box. The visible area of ​​the shade, trim or shade is proportional to the spread of the string. [0003] The prior art describes a very large number of embodiments of rope reels for such devices. The real disruption in this field was the introduction of the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B9/322E06B9/42A47H11/06
CPCE06B9/322E06B9/42E06B2009/3225
Inventor E·拉加德N·迪皮耶莱
Owner SOMFY SAS