Abstract:
The valve unit has a piercer (A) with a double-armed lever (4), the shorter, right hand arm of which is tensioned by the piercing spring (5). The normal position (a) of the double-armed lever (4) is maintained by the ampoule (7) of the thermal safety device when the piercing pin (2) is retracted by the back spring (6) and the piercing spring (5) is tensioned, the ampoule (7) being clamped between the seats of the fixed bracket (8) and of the turning bracket (9). The turning bracket (9) has a prong (11) at other side of the turning axis (10), caught by the longer arm of the double-armed lever (4). The piercer (A) and the cut-off valve (B) have a common body (3) in which is made the piercer channel (12) connected with the control chamber (14) of the cut-off valve (B). The slide (13) of the cut off valve (B) in actuated position uncovers by its left hand face the outlet channel of the feed line (17).
Abstract:
The invention solves the problem of pneumatic locking the actuator piston rod in a selected intermediate position during ventilation. The control unit is characterized by the features that it is constituted by a four-way controlling distribution valve (10) with a directional slide (17) moved by a lever mechanism (11) connected with the smoke flap cover (2), that in the cylindrical bore of the body (12) of the controlling distribution valve (10) there is, beside the directional slide (17), a second slide, the smoke removal slide (22), that in the stroke zone of the directional slide (17) are located consecutively towards the smoke-removal slide (22) the following passages: the piston passage (14), the directional opening passage (16), and the piston-rod passage (13), and that the directional slide (17) has an external piston (19) and an internal piston (2) connected by a necking (21) of a length (b) longer than the spacing (a) between the piston passage (14) and the piston rod passage (13), and the length (c) of the external piston (19) is greater than the spacing (d) between the piston passage (14) and the directional opening passage (16).
Abstract:
Smoke extractor release, in particular for a roof smoke flap and a smoke window or a ventilation window characterised in that the axis of revolution of the releasing lever (9) is a shaft (8), having a cylinder sector with a truncated flat surface (C), while the collar (6) of the pusher (5) has a two-stage side surface profile, in which the part of the side surface constituting a spring (7) bumper has a cylindrical shape with a circumferential flat surface (A), towards the striker (7) turning into a cone with a concave side surface (B), in addition in the stand-by position of the release the concave surface (B) of the striker (4) pusher (5) is supported by the cylindrical surface of the shaft (8) and the pusher (4) is interlocked in the position of spring (7) tensioning.
Abstract:
Smoke extractor release, in particular for a roof smoke flap and a smoke window or a ventilation window characterised in that the axis of revolution of the releasing lever (9) is a shaft (8), having a cylinder sector with a truncated flat surface (C), while the collar (6) of the pusher (5) has a two-stage side surface profile, in which the part of the side surface constituting a spring (7) bumper has a cylindrical shape with a circumferential flat surface (A), towards the striker (7) turning into a cone with a concave side surface (B), in addition in the stand-by position of the release the concave surface (B) of the striker (4) pusher (5) is supported by the cylindrical surface of the shaft (8) and the pusher (4) is interlocked in the position of spring (7) tensioning.
Abstract:
An opening and closing system of the window has a remote releasing and locking mechanism of the bolts (5), actuated with the initial phase of the actuator's (8) piston rod (11) stroke, containing at least one slidable pusher (16), movable linearly along the frame (3) of the sash (2), the pusher (16) has an arm (16a), (16b) mating a pin (7) of a slidable slat (4) with a bolt (5), the stroke phase of the actuator's (8) piston rod (11) that actuates the bolts (5) is determined by the length of the guide (13) of the actuator's (8) piston rod (11) articulated joint axle (12) in the yoke (14), whereas the length of the stroke phase of the actuator's (8) piston rod (11) that actuates the bolts (5) corresponds to the length of the linear shift of the bolts (5) enabling them to be released or interlocked within the catches (6).
Abstract:
The device consists of a linear actuator (A) and a lock (B). The linear actuator (A) is connected with a stationary (3) and a mobile (5) articulated joint between a stationary frame (1) and a mobile frame (2) in the plane perpendicular to the axis of inclination of the mobile frame (2) The lock (B) comprises a stationary member (7) and a mobile member (13) secured respectively to both frames (1, 2) and interlocked in the closed position by a bolt (6) controlled mechanically by the linear actuator movement at the final section of its stroke. The bolt (6) of the lock (B) constitutes a pin of the mobile joint (5) moved by the linear actuator (A) in the guide (14) made in the mobile member (13). The mobile member has a spring (14) loaded pawl (15) holding the bolt (6) in the extreme outer point (b) of the guide (14), having also a releasing mandrel (19), which cooperates with the bumper (12) of the stationary member (7) by lifting the pawl (15) and releasing the bolt (6) during the holding down and locking phase of the mobile frame (2) and during mounting the bolt (6) in the socket (11) of the stationary member (7) in the extreme inner point (a) of the guide (14).
Abstract:
The valve unit has a piercer (A) with a double-armed lever (4), the shorter, right hand arm of which is tensioned by the piercing spring (5). The normal position (a) of the double-armed lever (4) is maintained by the ampoule (7) of the thermal safety device when the piercing pin (2) is retracted by the back spring (6) and the piercing spring (5) is tensioned, the ampoule (7) being clamped between the seats of the fixed bracket (8) and of the turning bracket (9). The turning bracket (9) has a prong (11) at other side of the turning axis (10), caught by the longer arm of the double-armed lever (4). The piercer (A) and the cut-off valve (B) have a common body (3) in which is made the piercer channel (12) connected with the control chamber (14) of the cut-off valve (B). The slide (13) of the cut off valve (B) in actuated position uncovers by its left hand face the outlet channel of the feed line (17).