Invention Grant
- Patent Title: Roller shutter for opening and closing a doorway
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Application No.: US15128050Application Date: 2015-03-24
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Publication No.: US10253557B2Publication Date: 2019-04-09
- Inventor: Friedhelm Frede
- Applicant: ASSA ABLOY Entrance Systems AB
- Applicant Address: SE Landskrona
- Assignee: ASSA ABLOY ENTRANCE SYSTEMS AB
- Current Assignee: ASSA ABLOY ENTRANCE SYSTEMS AB
- Current Assignee Address: SE Landskrona
- Agency: Wissing Miller LLP
- Priority: SE1450346 20140325
- International Application: PCT/EP2015/056301 WO 20150324
- International Announcement: WO2015/144729 WO 20151001
- Main IPC: E06B9/17
- IPC: E06B9/17 ; E06B9/18 ; E06B9/58 ; E06B9/60 ; E06B9/174 ; E06B9/15 ; E06B9/171

Abstract:
The invention relates to a roller shutter for opening and closing a doorway (12) having a door blade (11), the door blade (11) comprises several rigid shutter elements (13) which are hinged with each other, the shutter elements (13) are guided by side rails (18) at opposed sides of the doorway (12), wherein each shutter element (13) provides an end piece (19) at each horizontally spaced end of the shutter element (13) for spacing layers of rolled up shutter elements (13) apart from each other, each end piece (19) has at least one concave section (27) for coiling the end pieces (19) on a coiling device (14) and/or in layers on top of each other. For reducing the risk of weakening a connection between the end piece (19) and the shutter element (13), for reducing noise and/or vibrations during the opening and/or closing of the door way and/or to increase the stability of the roller shutter the roller shutter (10) is characterized in that at least some of the end pieces (19) having at least one plane gliding section (28), the plane gliding section (28) is arranged for interacting with a slide guide (36) of the side rail (18) for leading the end pieces (19) into and/or out of the side rails (18).
Public/Granted literature
- US20170101818A1 Roller Shutter for Opening and Closing a Doorway Public/Granted day:2017-04-13
Information query
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