EP 1122379 A3 20021113 - Curved staircase and stair tread for curved staircase
Title (en)
Curved staircase and stair tread for curved staircase
Title (de)
Drehtreppe und Treppenstufe für Drehtreppe
Title (fr)
Escalier tournant et marche d'escalier pour escalier tournant
Publication
Application
Priority
JP 2000028572 A 20000207
Abstract (en)
[origin: EP1122379A2] A curved staircase (1) and a stair tread (4,5,6,7) for a curved staircase (1) capable of reducing a stock space used for stock keeping, enhancing the working efficiency for shipment without requiring a selection operation in accordance with a curve direction of a curved staircase (1), and facilitating assembly at a building site is provided. A curved staircase A (1) is formed by asymmetrical stair treads (4,5,6 and 7) such that finishing process for enabling use as a treadboard is applied to one horizontal surface of each stair tread (4,5,6,7), which can be an upper surface when arranged in a curved portion (10) bent in the right-hand direction and the same finishing process as that for the former horizontal surface is applied to the other horizontal surface of the stair tread (4,5,6,7), which can be an upper surface when the stair tread (4,5,6,7) is inverted to be arranged in the curved portion (10) bent in the left-hand direction. <IMAGE>
IPC 1-7
IPC 8 full level
E04F 11/02 (2006.01); E04F 11/025 (2006.01)
CPC (source: EP)
E04F 11/02 (2013.01); E04F 11/025 (2013.01)
Citation (search report)
- [A] GB 2038442 A 19800723 - KENSCOT IND LTD
- [A] EP 0119118 A1 19840919 - ESCARMOR S A [FR]
- [A] US 5167102 A 19921201 - NAKATSUBO MASAFUMI [JP], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1122379 A2 20010808; EP 1122379 A3 20021113; EP 1122379 B1 20070411; DK 1122379 T3 20070430; JP 2001220874 A 20010817; JP 3294836 B2 20020624; NO 20010630 D0 20010206; NO 20010630 L 20010808; NO 319433 B1 20050815
DOCDB simple family (application)
EP 01301080 A 20010207; DK 01301080 T 20010207; JP 2000028572 A 20000207; NO 20010630 A 20010206