Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The sash restrictor 6 has a frame attachment member 16, engaged with a track 10 of a window jamb, pivotally connected to an arm 14 at end 22 by a first connection means 24, the other end 26 of the arm 14 is pivotally connected to a sash attachment member 18 engaging a channel 20 of a window sash 4 by a second connection means 28. Preferably, a pair of restrictors 6 are provided for a sash window having a pair of jambs, each having a track 10 in which the frame attachment member 16 can slide. The connection means 24,28 may comprise a friction fit sleeve around a fastener with a washer located between, and in contact with both, the arm 14 and the respective attachment member 16,18. Preferably, the sash attachment member is fixed in the channel, and has a fixed friction block with a recess in contact with an outer circumferential surface of the respective washer. The fasteners may be rivets and the washers made of compressible plastic providing sufficient axial and/or radial frictional forces acting between surfaces of the parts to control the rate of opening, and support weight of the sash in an open position.
The sash restrictor 6 has a frame attachment member 16, engaged with a track 10 of a window jamb, pivotally connected to an arm 14 at end 22 by a first connection means 24, the other end 26 of the arm 14 is pivotally connected to a sash attachment member 18 engaging a channel 20 of a window sash 4 by a second connection means 28. Preferably, a pair of restrictors 6 are provided for a sash window having a pair of jambs, each having a track 10 in which the frame attachment member 16 can slide. The connection means 24,28 may comprise a friction fit sleeve around a fastener with a washer located between, and in contact with both, the arm 14 and the respective attachment member 16,18. Preferably, the sash attachment member is fixed in the channel, and has a fixed friction block with a recess in contact with an outer circumferential surface of the respective washer. The fasteners may be rivets and the washers made of compressible plastic providing sufficient axial and/or radial frictional forces acting between surfaces of the parts to control the rate of opening, and support weight of the sash in an open position.
Sash restrictor
RICHARD SEHDEVA (Autor:in)
07.06.2017
Patent
Elektronische Ressource
Englisch