Abstract: A sensor arrangement for identifying and measuring environmental parameters, in particular in flat roof structures, including a first group of functional units containing at least one sensor and a transmission/reception antenna for wireless communication, and a second group of functional units containing at least one sensor, a measurement, storage and evaluation unit, and a power supply. The two groups of functional units are accommodated in separate housings, but operatively connected to one another. The first functional group has a sensor for water in liquid form and a humidity sensor, and the second functional group preferably has at least one surface pressure sensor. A measurement network can include a group of the sensor arrangements that are controlled/monitored from a common transmission/reception unit. The installation of such a measurement network is also described.

Abstract: A component holder, in particular for aircraft, for indirectly securing components to the fuselage or body shell. The component holder has a base portion and an attachment element which is lockable to the base portion and has a component receiving member arranged thereon. The base portion has a circular shell form, and the upper edge has retention and locking elements. The lockable attachment element has a s dome-like basic structure, and the lower edge region has retention and locking elements which complement those of the base portion and are lockable therewith. The component receiving member is formed integrally on the attachment element and arranged at a dome zenith on the outer side. The dome is formed from at least three frames which are angularly offset on the circumference. The frames extend from the dome lower edge region to the base location of the component receiving member at the dome zenith.

Abstract: An adjustable hidden or invisible hinge for mounting a door-panel or window sash to a frame is provided that is useable for either rebated or flush mount applications using the same hinge. This is possible due to the use of two different types of arm systems that connect the frame part of the hinge to the sash or door part. These include a rotational lever arm system that allows for 180° guided rotational movement which is combined with a translational arm system that at the same time superimposes a translational movement of the sash movable body relative to the sash body.

Abstract: A self-drilling screw (10) having a head (20), a shaft (30) at least partially wearing a thread (35) and a drill point (40). The base material of the screw (10) including the drill point (40) is integrally manufactured from an austenitic 300 series steel with a surface hardness (uncoated) of 400-600 HV 0.3. The surface of the screw has a top coating of Zn—Ni with a Ni-content between 12-15% deposited on the austenitic base material. This self-drilling screw (10) is manufactured from a blank of raw austenite 300 series steel which is initially squeezed by cold forming to reduce its diameter in a first operation and, in following cold forming operations the head, the drill point and a thread are formed.

Abstract: A centering device for guiding a fastener or a drill during a setting operation. The centering device is arranged in or at a passage opening of a component, which forms a fastening point. The component can be a substantially flat metal part, in particular a lug or bracket for a façade element. The centering device is arranged at the plane of the back of the passage opening and includes a collar and connecting elements between the collar and the edge of the passage opening. The collar has a substantially flat to bead-like annular shape and is formed in the component. The central opening of the collar forms a centering seat for a fastener or drill during setting. A fastening arrangement has a component, centering device and matching screw. The screw forms a form fit via its lower head portion in the passage opening after completion of the setting process.

Abstract: A ball screw drive includes a threaded spindle and a spindle nut with a plurality of balls that circulate endlessly in the intermediate space between the nut and the spindle. A ball return guide guides balls at one location out of the helical ball race by a ball deflector and feeds the balls back via a transition channel and another ball deflector. The ball deflectors are arranged in radial through-openings in the lateral surface of the nut. One or more small metal plates are provided on the nut, and are arranged in and/or adjacent to the radial through-openings and offset inwardly away from the lateral surface, and span the ball return guide in a planar manner. The ball return guide is fixed in a target position in the lateral surface of the nut, and when fully assembled the small metal plates do not protrude beyond the lateral surface.

Abstract: A sleeve for the centering of fasteners when installing structural parts on substructure of a building envelope is designed substantially as a hollow cylindrical sleeve body or split hollow cylindrical sleeve body. It has at least two gutter-like shell elements each having a head end and a rear end. The shell elements are grouped symmetrically about a central axis A and span between them a middle space with inner surfaces facing each other. The shell elements are spaced apart from each other and separated by axially parallel longitudinal slots, except for a connecting joint section at the head end. These sleeves are placed on a fastener and allow a precise centering in the predrilled hole of a facade plate, for example. The sleeve remains in the predrilled hole until such time as the centering of the fastener has been accomplished and is then ejected safely by driving the fastener home.

Abstract: A screw having the following successive functional sections: a threaded tip (150) shaped as a cone (A) having a double thread; a milling section (B) having a plurality of milling ribs (160) with outer diameter DF; a cylindrical shank section having the main thread with diameter DN; a thread-free shank section (D); optionally a holding thread section (E); optionally a short thread-free underhead section (F); and a head section (G) having a force engagement. The main thread (110) is guided continuously from the tip section (190) of the cone (A) via the milling section (B) to the head end of the thread-bearing shank section (C) and the ribs of the milling section (B) are arranged recessed in the thread base (140) of the continuous main thread such that the thread tips of the continuous main thread with nominal outer diameter DB project beyond the milling ribs, so that DF<DB.

Abstract: A profile element for attachment to the rear side of a façade panel, which in turn is fastened to a base such as a building surface or substructure. The profile element is formed in one piece and includes three functional sections arranged one after another: a fixing section for fixing the profile element to a base; a support section for attachment to the façade panel; and a spacer element which, in the installed state, ensures the correct distance between the base and the rear side of the façade panel. The profile element is extendible by a supplementary element, which has functionally similar elements and is only used if required by the geometry of the façade panel. The supplementary element is usable for positive connection to the profile element of an adjacent façade panel. Such a façade system provides flexibility for a wide variety of types and dimensions of façade panels.

Abstract: A spindle nut (S) for a ball screw is conventionally designed as a hollow cylinder with a central-symmetrical middle longitudinal axis (Z). The spindle nut has an internal thread, which is designed as a ball groove (K) arranged on the cylinder inner surface. Pairs of load-relief bores (B) serve as substantially cylindrical channels for guiding the balls out of and into the ball channel (K) through the wall of the spindle nut. Each load-relief bore (B) is distinguished by a generatrix (L), which has an intersection point (C) with the thread base line of the ball channel (K) and constitutes the geometric continuation of the traveling path of a ball from the ball channel (K) into the load-relief bore (B). A tangent (T) to the cylinder surface (G) runs in a parallel manner at a spacing a >0 to the generatrix (L), both T and L being perpendicular to a common normal (R) to the middle longitudinal axis (Z).

Abstract: A lightweight-construction fastener (10) having a one-piece clip body (20) made of plastic and a clip nut (40). The clip body has the basic shape of a clamp, having two opposite legs (22, 24) extending in the longitudinal direction and a cage (28) in which the clip nut is floatingly mounted. The clip nut in turn has a nut base (42) which is substantially planar. A main part (44) is structured on the nut base and has a cover surface (41) and a plurality of side walls (51, 51?) which extend between the nut base and the cover surface. The side walls of the main part preferably have a convex curvature and the cage has correspondingly designed concave walls. The sizing is such that the convex-concave surface pairs act as torque supports during use of the lightweight-construction fastener.

Abstract: An operating unit for a parking brake of motor vehicles including an operatively connected unit having of a drive spindle and nut, which forms an axially longitudinally adjustable element of a linear drive. The drive spindle has a drive side for connection to an electric drive and a substantially cylindrical spindle portion having an external thread. The nut has a sleeve-shaped central body having an internal thread and a head portion designed to act as a pressure piston on a brake element of the parking brake. The internal and external threads intermesh in the operative connection and define a common axial axis of rotation. The thread is a symmetrical thread, and the flank angles, relative to a radial reference plane perpendicular to the axis of rotation, have angle values which are substantially equal in magnitude.

Abstract: A retaining device for attachment of objects to a wall surface includes a main body, a fastening arrangement, and a cover lockable to the main body that arches over the fastening arrangement. The main body has a bottom side, that faces the wall during mounting, and a top side, that faces away and includes a retaining ring. The fastening arrangement includes a fastener and a centering cap which fixes the fastener. The bottom side of the main body has a circular-ring-shaped surface, on inner and outer edges of which, in each case, one closed encircling web is provided which faces away from the bottom side. Two passage openings are provided in the circular-ring surface between the top and bottom sides. When attached, the main body is pressed onto the wall and an adhesive is injected through one of the passage openings until it emerges again at the other passage opening.

Abstract: An anchor point (10) for a fastening element (30), such as a cable tie, includes a substantially flat anchor plate (12) and a resilient element (14) connected thereto, which in turn has at least two locking tongues (16, 17). The anchor plate has a substantially circular disc shape. The resilient element is preferably designed as a plastic loop in the shape of an omega and exerts its resilient action primarily in a direction perpendicular to the plane of the anchor plate. Via an opening in the anchor plate a fastening element/cable tie can be passed through the anchor plate and is deflected by the locking tongues or the resilient element so that it passes through a second opening again to the surface. By pulling on the cable tie, the locking tongues are spread apart by compression of the resilient element and are fixed in or behind the opening of a surface.

Abstract: A tolerance ring is an intermediate element for a shaft/hub connection that is positioned in a groove between shaft and hub and that produces a force-fitting connection between these two elements. It has substantially the shape of a hollow cylinder, wherein the lateral surface thereof has embossments in the form of radially inwardly and/or outwardly pointing elevations. Here, provision is made at one longitudinal end of a flange-like collar, which is applied in a radial plane with respect to the central longitudinal axis. The tolerance ring is preferably manufactured in one piece with the flange-like collar from metal as a deep-drawn part, preferably being manufactured from aluminum or an aluminum alloy. An assembly method for such a tolerance ring, and a ball screw drive, and a screw drive, having such a tolerance ring are also provided.