摘要:
A telescopic lifting column for height adjustment of elevatable tables (1) consists of a stationary rectangular profile (2), which at the bottom rests against a floor, and of a sliding quadrangular profile (3), which slides inside the stationary profile (2) and which can be activated up or down by a linear actuator (4) and which at the top rests against a table top (7). The profiles (2, 3) each have an open side (resp. 8 and 9), and the linear actuator is embodied as a toothed rack (10), which is fastened to the internal side (3′) of the sliding profile (3) opposite the open side (9), and which is in mesh with a toothed wheel (11), which is coupled to a gear motor (12,13), which is fastened to the stationary profile (2) of the lifting column. On the side facing the open side (9), the toothed rack (10) is embodied with a guide way (18) with a width (a) in which two guide pins (19, 20)—with a mutual distance (b) and fastened to the stationary profile (2)—are in mesh.
摘要:
An operating arrangement for an electrically operated window screening device of the type comprising a flexible screening body (1) which is rolled up on a roller (2) positioned in or at an upper horizontal main frame or sash member of the window and in a free end is connected with a bottom rail (4) extending the width of the window. The operating arrangement comprises a cord or string-formed pull-element (12, 13; 24) acting on the screening body and being wound on a winding device (11; 22, 23) positioned at a lower main frame or sash member, with an accompanying electrical drive motor (9). For moving the screening body (1) in an unrolling direction, the pull-element (12, 13; 24) is guided from the winding device along both opposite main frame or sash side sections of the window for connection with the bottom rail (4), whereas the movement of the screening body in the opposite rolling up direction is effected by a spring force acting on said roller (2) during simultaneous unwinding of the pull-element from the winding device. The pull-element (12, 13; 24) may be connected with a separate bar profile (5) designed for after-mounting on a bottom rail (4) for a screening device already installed.
摘要:
A telescopic lifting column for height adjustment of elevatable tables (1) consists of a stationary rectangular profile (2), which at the bottom rests against a floor, and of a sliding quadrangular profile (3), which slides inside the stationary profile (2) and which can be activated up or down by a linear actuator (4) and which at the top rests against a table top (7). The profiles (2, 3) each have an open side (resp. 8 and 9), and the linear actuator is embodied as a toothed rack (10), which is fastened to the internal side (3′) of the sliding profile (3) opposite the open side (9), and which is in mesh with a toothed wheel (11), which is coupled to a gear motor (12,13), which is fastened to the stationary profile (2) of the lifting column. On the side facing the open side (9), the toothed rack (10) is embodied with a guide way (18) with a width (a) in which two guide pins (19, 20)—with a mutual distance (b) and fastened to the stationary profile (2)—are in mesh.
摘要:
In an electrically operated window screening arrangement, where the movement in one direction between two end positions corresponding to a screened and an unscreened, respectively, window is effected by winding draw cords or strings (3, 4) on at least one winding drum (5, 6) in a horizontal main frame or sash member (7), the winding drum is connected by a motor shaft (8) with an electric drive motor (9). The movement in the opposite direction is carried out by a constant force during simultaneous unwinding of the draw cord or string (3, 4). An end stop device comprises a contact (11) for disruption of the motor current during movement in the opposite direction by activation from a sensor (17). The motor shaft (8) is journalled in such a way that it may perform a limited tilting movement at its connection with the drive motor (9), and the sensor comprises a contact member (17) belonging to the contact (11) and in abutment against a shaft part (8) positioned farthest away from the motor (9), the shaft (8) being spring-biassed in the opposite direction of the load produced by the draw cords or strings (3, 4).
摘要:
A support for a window screening device includes a first pair of bracket members (6) for mounting on each of a pair of opposed parallel frame surfaces (2) engageable by the screening device. Each bracket member includes a relatively flat front part protruding from the frame surface and having a substantially smooth external surface, and the engaging mechanism (11-12; 111-112; 33-34) is provided by each coupling member (7; 107; 207; 307; 36) and includes a first engaging mechanism in the form of at least one contact surface on the coupling member engaging a circumferential surface part of a bracket member to provide temporary engagement therewith and non-resilient second engaging mechanism providing stable engagement of the coupling member with respect to the frame structure.
摘要:
A supporting mechanism for a window screening device comprises a first pair of bracket members for mounting on each of a pair of opposed parallel frame surfaces of the frame structure and a second pair of coupling members engageable by the screening device. Each bracket member and each coupling member comprises an engaging mechanism for releasable sliding engagement of a coupling member with a bracket member. Each bracket member or each coupling member is provided with a resilient mechanism engageable with an abutment of a coupling member or a bracket member to retain the bracket member and the coupling member in mutual engagement. The bracket members are identical standard members each comprising a relatively flat front part protruding from said frame surface and having a substantially smooth external surface and engaging mechanism formed by a pair of opposed parallel side edges. Each coupling member is formed as a substantially flat brick-shaped member provided with an open recess limited by leg portions forming engaging mechanism engageable with the engaging mechanism on the bracket members.
摘要:
The mounting and parallel guidance arrangement comprises a mounting bar (1) designed for releasable interconnection with the bottom bar of the screening device and having a through-going hollowness, two parallel guidance cords (2, 3), each being led through said mounting bar and comprising end parts which protrude from each end of the mounting bar, and installation brackets (4-7) for the free end of each of the end parts. The two installation brackets (4, 6; 5, 7) for a cord are meant to be fastened at the top of a first main frame or sash side member and at the bottom of the other main frame or sash side member opposite in relation to the first one, respectively. The releasable inter-connection of the mounting bar (1) with the bottom bar can be effected by means of clips.
摘要:
The screening arrangement, in particular a Venetian blind, is intended for installation in a roof window and comprises a screening length having a number of mutually connected elements as well as profile lists to be mounted on each of the side members of the sash and each having a track for receiving a structure displaceable along the track, the structure comprising a spring housing and a slide shoe. The slide shoe is provided with an abutment surface for the elements of the screening length during their gathering during raising of the screening arrangement. A bottom list of the screening length facing the bottom member of the frame is connected at each end with the displaceable structure and loaded in the direction of the bottom member of the sash by a coil spring rotatably mounted in the spring housing, the uncoiled portion of the spring extending in the track in question from the displaceable structure to a fixing point at the bottom member of the sash. The abutment surface of the slide shoe extends in the longitudinal direction of the track to such an extent that it may receive a predetermined number of screening elements, and the spring housing and the slide shoe are displaceable relative to each other in view to reducing the extension of the abutment surface. The spring housing may for instance be guided in a track in the slide shoe.