Sfs Industrie Holding Ag

Sfs-intec Holding Ag

Sfs Stadler Holding Ag

Sfs Rhomberg Gesellschaft M.b.h.

Daniel Gasser

Erich Palm

Sven Sieber

Richard Sahli

Walter Seifert

Kurt Blum

Thomas Heinzmann

Helmut Osterle

Stefan Baumgartner

Norbert Koppel

Markus Steffen

Albert Baumgartner

Beda Angehrn

Guido Hasler

Werner Zwicky

Paul Muller

Walter Untersander

Jurg Maurer

Sonja Oesch

Werner Patsch

Helmut &Ouml;esterle

Norbert K&ouml;ppel

Joakim Hultgren

Tero Korhonen

A fastening arrangement including a grommet, which is configured as a substantially cylindrical sleeve with a head part, with a hollow-cylindrical shaft and with a conical tip, and also a fastener and a nut, for example made of plastic, which is fitted on the first threaded portion of the fastener. The fastener has two threaded portions, wherein one threaded portion is configured as a right-hand thread and the other threaded portion is configured as a left-hand thread (or vice versa). Moreover, the invention comprises a mounting method for such a fastening arrangement, in which the setting operation (anchoring of the fastener, adjustment of the sheath) can be managed in one step without changing the driving direction of the setting tool.

Fastener, fastening arrangement and method for mounting

A grommet () as part of a fastening element for a building envelope essentially comprises a head (), a tip () and a sleeve () therebetween, wherein the head () is essentially constructed as an extensive washer (), the central hole of which is adjoined by the tubular sleeve (). The tip () narrows essentially in a conical or tapered manner to a smaller diameter. The grommet () has a sensor arrangement (), with at least one RFID transponder with antenna and a sensor operatively connected to the transponder.

Sensor arrangement with RFID

A method for fastening material webs, such as roofing sheets made of plastic on a surface with fastening points (head disks including a hot-melt adhesive layer) arranged thereon using a self-propelled fastening unit () comprising the following steps: (A) detecting a route marking by means of a first detector () on the fastening unit () and moving the fastening unit along the route marking; (B) detecting and calculating the position of a head disk () by means of a second detector (); (C) approaching and remaining at an operating position during the subsequent fastening process; (D) positioning an induction heater () and heating up the head disk () for a period of time Th; (E) removing the induction heater () and pressing the material web against the head disk by a cooling device (); (F) taking off the cooling device after a predetermined time Tk has passed; (G) continuing with (A), until an end of the route marking is reached.

Self-propelled fastening unit and method for fastening sealing webs

A device () for bonding or welding a membrane, including an undercarriage () for supporting the device on the membrane at least at one contact point, which is formed by a pressing element () for pressing the membrane onto a metal plate to be bonded or welded thereto, and at least at two further contact points, which are formed by castors (). A frame () extends upwards from the undercarriage (), wherein the device () can be manoeuvred using the frame. The pressing element () includes a heating device (), which is designed as an induction coil, by which the metal plate, which is provided with an adhesive or weldable coating, can be heated. An induction generator and a control and cooling device thereof are mounted in or on a housing (), which is fixed to the frame () at a distance (A) above the undercarriage (). The device (), which is formed as one part, can be tilted for moving around a castor axis () and can then be lowered via the metal plate onto the membrane.

Device for bonding or welding a membrane

A device for processing a belt strap for storing screws, in which the belt strap has a flat, U-shaped cross section that has a periphery that has a ratio of no more than 11:10 relative to the non-flanged belt. A guide device for the belt strap guides and holds the belt strap. The screws can be pressed out from the upper side of the belt strap. The guide device () has two guide slits () receiving the belt strap () in at least the region of the flanges (), each slit being L-shaped in cross section and each having a contact surface () for the underside () of the belt () and a guide rib () extending across the flange (). A distance (M) of each guide rib () from the contact surface () has a value greater than the belt thickness (D) and less than a length (Q) of a corner diagonal () of the belt strap () extending in the U-shaped cross section between the points at which the inner side () of the flange () intersects the upper side () of the belt () and one of the outer sides () of the belt strap () intersects the underside () of the belt ().

Device for processing a belt strap for storing screws

The invention relates to a fixing element ( ) for fixing insulation and scaling tracks on a fixed substructure. Said element comprises a screw ( ) and a large washer ( ) with a cylindrical extension ( ). The screw ( ) has two thread segments ( ), wherein one thread segment ( ) interacts with the through hole in a reciprocal thread engagement located in a narrowed area ( ) of the cylindrical extension ( ). An axial relative movement of both parts can be achieved by reciprocally rotating the cylindrical extension ( ) and the screw ( ).

Fixing element and method for fixing insulation tracks or plates on a fixed substructure

A screw holder mountable on a drive unit having a tubular passage with two axially-aligned sections, each provided with locking and centering elements, such that a screw inserted into such holder can initially only penetrate until the screw head is reliably held and suspended in the first section by the locking elements. The force of the centering and locking elements upon the screw head is overcome when the apparatus is placed on the screw location and an engagement tool coupled to a drive shaft is brought into driving engagement with the screw head, which driving movement forces the locking elements radially outward in response to the axial load upon the screw head and the passage of the screw head therethrough. After the screw head passes through the first section within the tubular passage, the screw shaft is engaged by the centering elements of the second section. The centering elements of the second section are then also forced back as the head of the screw passes therethrough.

Apparatus for driving screws mountable on a drive unit

A screwdriver adapter (,) is provided with a receiving part (,) having an interior space (,). At the open end of the pot-shaped receiving part (,) there is inserted a nut-shaped element (,) in torsionally rigid and axially secured relationship. Adjoining the tool driving means (,) there is disposed a channel (,), which passes axially through the nut-shaped element (,) and extends as far as the interior space (,) of the receiving part (,). Drive portions broken off by overtorquing a screw in the tool driving means (,) can travel via the channel (,) into the interior space (,) of the receiving part (,), where they can be collected until an emptying process.

Growing community of inventors

Diepoldsau, Switzerland

Daniel Gasser