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Patent Searching and Data


Title:
BRAKING DEVICE FOR AUTOMATIC WINDING TYPE SCREEN DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/049223
Kind Code:
A1
Abstract:
[Problem] To provide a braking device for an automatic winding type screen device that stably brakes the automatic winding of a screen regardless of the temperature. [Solution] A braking device 10 for an automatic winding type screen device 1 comprises: a housing 20 that is provided inside a winding shaft 5 so as to be able to turn with the winding shaft 5 to wind up a screen 4; a sleeve 30 that is inserted into the housing 20 and is mounted to a bracket 6b so as not to be able to turn; and a mobile element 40 that can rotate with the housing 20. A first spring 60 and a second spring 70 are provided on the outer side of the sleeve 30 so as to have the mobile element 40 therebetween. The mobile element 40 twists forward on the sleeve 30 along with rotation of the housing 20, and biasing forces of the first spring 60 and the second spring 70 that expand and contract with the forward twist of the mobile element 40 brakes the rotation of the winding shaft 5.

Inventors:
AKIBA Junichiro (Inc. 21-4 Azusawa 2-Chome, Itabashi-k, Tokyo 01, 〒1748501, JP)
Application Number:
JP2017/032023
Publication Date:
March 14, 2019
Filing Date:
September 06, 2017
Export Citation:
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Assignee:
TOK, INC. (21-4, Azusawa 2-Chome Itabashi-k, Tokyo 01, 〒1748501, JP)
International Classes:
E06B9/60
Foreign References:
JP2004124649A2004-04-22
JP2007303111A2007-11-22
JP3141738U2008-05-22
JP2004238827A2004-08-26
Attorney, Agent or Firm:
SHIMIZU Takamitsu (Neokamiya bldg. 6F, 4-10-11 Hatchobori, Chuo-k, Tokyo 32, 〒1040032, JP)
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