Inventio Ag

Andreas Trojer

Michael Matheisl

Thomas Novacek

Reinhard Mauermann

Markus Israel

Thomas Illedits

David Krampl

Kurt Streibig

Richard Schütz

Dirk Mark Blondiau

Paul Sailer

Georg Adamcik

Richard SCHÜTZ

Dirk Blondiau

The invention relates to a device () for driving a handrail () for an escalator () or for driving a handrail () for a moving walkway, the device comprising a drive belt () guided along a contact zone () and deflected on a deflection roller () after passing through the contact zone (). The handrail () can be guided resting against the drive belt () along the entire contact zone () and can be driven by the drive belt () by means of friction between drive belt () and handrail (). The device () comprises a deflection element (), which deflection element () ensures that a lift-off point () of the handrail () from the drive belt () delimiting the contact zone () is arranged upstream of the deflection region of the drive belt () on the deflection roller (). According to the invention, an escalator () or a moving walkway can be modernized with such a device ().

Device for driving a handrail for an escalator or moving walkway

A clinching tool () for producing a load-bearing, supporting or stable connection of a first metal workpiece () with a second metal workpiece (). The clinching tool () comprises a die tool () and a counter-tool () which together form and join, by local plastic reshaping or deformation of the metal workpieces (), a clinch connection () which connects or permanently joins the first metal workpiece () and the second metal workpiece (). The die tool () comprises a die having a flank () arranged concentrically with respect to the rotational axis (). The flank () has a front end surface () perpendicular to the rotational axis (). The flank () is conically shaped at least in the lower transition region () to the front end surface () and has a flank angle (W, W, W) smaller than or equal to 10 degrees, preferably smaller than or equal to 5 degrees.

Method and tool for clinching thick plates and use of the tool or of the clinching apparatus or of the clinching appliance

A handrail with handrail elements is moved past a sensor support with at least one sensor. Each handrail element has, for example, a collar, which extends into the adjacent handrail element. The handrail elements, which are pivotably fastened to a second transport chain, can move relative to the adjacent handrail elements without a gap then arising between two adjacent handrail elements. Merely a segment groove with such a small depth that fingers are not caught arises between two adjacent handrail elements. The sensor can recognize each segment groove as well as defective handrail elements. Operating magnitudes such as speed, acceleration and deceleration of the handrail are ascertainable and/or risk-laden operating states are recognizable by means of the sensor signal.

Conveyor equipment

A method of producing a load-bearing steel construction connection, wherein a clinch connection () connecting a first metal workpiece () with a second metal workpiece () is formed by local deformation by means of a die tool () and a counter-tool (). In that case initially the first metal workpiece () and the second metal workpiece () are placed one on the other on a processing surface of the counter-tool and aligned. The die of the die tool is then advanced and sunk into the two metal workpieces () placed one on the other until the clinch connection () has been formed by plastic deformation. The first metal workpiece () has a first workpiece thickness (t) and the second metal workpiece () has a second workpiece thickness (t), which together give a total workpiece thickness (tt) which is thicker than 8 millimeters. The die is designed to be rotationally symmetrical with respect to its rotational axis () and has a conically shaped transition region () narrowing at an angle (W, W, W) in the direction of sinking-in of the die.

Method for clinching thick metal workpieces, use of a clinching tool, and steel structural element produced accordingly

The step () comprises cheeks () which are manufactured from deep drawing sheet metal, and a tread element () and a deep drawn seating element (). The arc (BO) of the seating element () follows a first radius (R) in the upper region and a second radius (R) in the lower region, wherein the second radius (R) is somewhat smaller than the first radius (R). The sheet (BO) of the seating element () merges smoothly at the line (&#xdc;R) from one radius into the other radius. By way of the two radii (R, R), the size of the step gap between the tread element () and the seating element () of the adjacent step is independent of the position of the step gap; the step gap always remains very small, for example smaller than 2.8 mm. As a result, the risk of clothing items, sharp objects, shoes, children's fingers and so on getting jammed is reduced considerably.

Step for escalator, and escalator with such a step

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Vienna, Austria

Andreas Trojer