Range of motorized-drive devices for screening blinds

Patent metadata

Field	Value
Publication number	US-10655387-B2
Application number	US-201515520368-A
Country	US
Kind code	B2
Filing date	Oct 16, 2015
Priority date	Oct 20, 2014
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

A range of motorized-drive devices ( 100, 200, 300 ) for screening blinds comprises: at least one first drive device ( 100 ) for driving a first screening blind, comprising a first support ( 102 ), a first shaft ( 104 ) rotating about a first axis of revolution ( 106 ) with respect to the first support ( 102 ), at least a winding drum ( 108 ) for winding a drive cord of the first screening blind, rotating as one with the first shaft ( 104 ), a first geared motor unit ( 110 ) for driving the first shaft ( 104 ), housed in the first support ( 102 ) and kinematically connected to the first shaft ( 104 ), preferably via an overdrive ( 112 ), and a first electronic control module ( 114 ) fixed remote from the first geared motor unit ( 110 ), and at least one second drive device ( 200 ) for driving a second screening blind, comprising a second support ( 202 ), a winding tube ( 204 ) for the second screening blind mounted in the second support ( 202 ) so as to rotate about a second axis of revolution ( 206 ) with respect to the second support ( 202 ), a second geared motor unit ( 210 ) for driving the winding tube ( 204 ), housed inside the winding tube ( 204 ), and a second electronic control module ( 214 ) fixed remote from the second geared motor unit ( 210 ). The first geared motor unit ( 110 ) and the second geared motor unit ( 210 ) are identical and define a model of geared motor unit ( 10 ) that is common to the motorized-drive devices ( 110, 210 ) of the range.

First claim

The invention claimed is:

1. A range of motorized-drive devices for screening blinds, comprising:
at least one first drive device for driving a first screening blind, comprising:
a first support,
a first shaft rotating around a first axis of revolution with respect to the first support,
at least a winding drum for winding a drive cord of the first screening blind, secured in rotation with the first shaft,
a first geared motor unit for driving the first shaft, and
a first electronic control module of the first geared motor unit,

at least one second drive device for driving a second screening blind, comprising:
a second support,
a winding tube for the second screening blind so as to rotate around a second axis of revolution with respect to the second support,
a second geared motor unit for driving the winding tube, fixed to the second support and housed inside the winding tube, and
a second electronic control module of the second geared motor,

wherein the first geared motor unit and the second geared motor unit are identical and define a geared motor unit model shared by the motorized-drive devices of the range,
wherein the first motorized drive device comprises a speed reduction or overdrive stage between the first geared motor unit and the first shaft, and
wherein the second geared motor unit directly drives the winding tube of the second drive device or the second drive device includes a speed overdrive or reduction stage between the second geared motor and the winding tube.

2. The range of motorized-drive devices according to claim 1 , wherein the speed reduction or overdrive stage of the first drive device is an overdrive, which has a speed ratio in a range 1.1 and 2.

3. The range of motorized-drive devices according to claim 1 , wherein the speed overdrive or reduction stage between the second geared motor unit and the winding tube is a speed reducer that has a speed ratio in a range between 1/1.1 and 1/2.

4. The range of motorized-drive devices according to claim 1 , wherein the first geared motor unit directly drives the first shaft.

5. The range of motorized-drive devices according to claim 1 , wherein the first geared motor unit shared by the range has a cylindrical casing.

6. The range of motorized-drive devices according to claim 1 , wherein the first drive device includes a compensating spring mounted kinematically between the first shaft and the first support.

7. The range of motorized-drive devices according to claim 1 , wherein the second drive device includes a compensating spring housed in the winding tube and mounted kinematically between the winding tube and the second support.

8. The range of motorized-drive devices according claim 1 , wherein the shared geared motor unit model of the range comprises a rotary encoder and a rotation sensor reading information borne by the encoder.

9. The range of motorized-drive devices according to claim 1 , wherein the first geared motor unit is powered by a first electrochemical source housed in the first support, and the second geared motor unit is powered by a second electrochemical source housed in the second support.

10. The range of motorized-drive devices according to claim 1 , wherein the first electronic control module and the second electronic control module are physically identical and define an electronic control module shared by the drive devices in the range.

11. The range of motorized-drive devices according to claim 1 , wherein:
the first electronic control module of the first geared motor unit is fastened to the first support remote from the first geared motor unit and connected to the first geared motor unit by a first flexible electrical connection; and
the second electronic control module of the second geared motor unit is fastened to the second support remote from the second geared motor unit and connected to the second geared motor unit by a second flexible electrical connection.

12. The range of motorized-drive devices according to claim 1 , further comprising:
at least one third device for driving a third screening blind, including:
a third support,
a third shaft rotating around a third axis of revolution with respect to the third support,
at least a winding drum for winding a drive cord of the third screening blind, secured in rotation with the third shaft,
a third geared motor unit for driving the third shaft, housed in the third support and kinematically connected to the third shaft by a speed reducer, and
a third electronic control module of the third geared motor unit, the third geared motor unit being of the shared geared motor unit model of the range.

13. The range of motorized-drive devices according to claim 12 , wherein:
the overdrive of the first driving device has a speed ratio in a range between 1.1 and 2; and
the speed reducer of the first driving device has a speed ratio in a range between 1/2 and 1/4.

14. The range of motorized-drive devices according to claim 3 , wherein the second geared motor unit directly drives the winding tube of the second drive device.

15. The range of motorized-drive devices according to claim 3 , wherein the first geared motor unit directly drives the first shaft.

16. The range of motorized-drive devices according to claim 2 , wherein:
the overdrive of the first driving device has a speed ratio in a range between 1.1 and 2; and
the speed reducer of the first driving device has a speed ratio in a range between 1/2 and 1/4.

Assignees

• Somfy Sas

Inventors

• Perache Jean-Michel
• Lagarde Eric

Classifications

• E06B9/68 Primary

  Operating devices or mechanisms, e.g. with electric drive · CPC title

• E06B2009/6809

  Control · CPC title

• E06B2009/2447

  Parallel screens · CPC title

• E06B9/72 Primary

  comprising an electric motor positioned inside the roller · CPC title

• F16H57/00

  General details of gearing (of screw-and-nut gearing F16H25/00; of fluid gearing F16H39/00 - F16H43/00) · CPC title