Inventio Ag

Volker Zapf

Astrid Sonnenmoser

Christian Studer

Andrea Cambruzzi

Florian Dold

Adrian Steiner

Faruk Osmanbasic

Michael Geisshüsler

Julian Stähli

Heinz Widmer

Patrick Bumann

Philipp Bürgi

Romeo Lo Jacono

Daniel Meierhans

Alessandro D'Apice

Wolf Neumann-Henneberg

Marcus Junig

Philipp Müller

Andreas Egger

Urs Camenzind

Gian-Reto Petruzzi

Sascha Hessel

Michael GEISSHÜSLER

An elevator has an elevator car that is guided on two mutually opposite guide rails in an elevator shaft. The guide rails each contain a U-shaped guide channel with a frontal guide surface and two lateral guide surfaces. Roller guide shoes are provided for guiding the elevator car. Each of the roller guide shoes has two rollers mounted on a common axle so as to rotate freely about an axis of rotation for guiding along the frontal guide surface of the U-shaped guide channel and a guide roller received between the two lateral guide surfaces of the U-shaped guide channel for lateral guidance. Covers are arranged upstream of the two rollers for covering the respective rollers, wherein the covers form an emergency guide.

Roller guide shoe for guiding an elevator car of an elevator

A method and an apparatus monitor the physical state of a suspension means that is connected to an elevator car and can move the same. The support means has markings along its length that divide the support means into segments. The strain difference of the suspension means is monitored segment by segment using a first strain at a first load and a second strain at a second load being determined by a signal processing unit from a distance between two selected markings detected by a detection device, and a strain difference representing the elastic behavior of the segment is calculated from the two strains, wherein the load acting on the suspension means between the two selected markings is measured by a load measuring device.

Determination of the state of a suspension means

A sliding guide shoe for an elevator has a guide shoe housing and an insert inserted into the guide shoe housing for guiding an elevator car or a counterweight. In order to positionally secure the insert, the insert has profiled pins that engage in bores in the guide shoe housing. In order to form the profiling, the pins each have radially outwardly directed ribs or projections that are distributed evenly over the circumference.

Sliding guide shoe for an elevator

A sliding guide shoe for an elevator includes a guide shoe housing and a two-part insert inserted into the guide shoe housing. The insert includes a damping element and a sliding element for guiding an elevator car or a counterweight.

An apparatus for guiding and braking an elevator system traveling body movable along a guide track includes a holder fastened to the body, a guide device and a braking device. The holder transmits guiding forces between the guide device, guided on at least one track surface in the longitudinal direction, and the body. The guide device is held on and is elastically movable relative to the holder transverse to the longitudinal direction by at least a predetermined tolerance distance. The braking device includes a carrier and a braking element movable between a deactivated configuration, in which a braking surface of the braking element is laterally spaced apart from the guide track, and an activated configuration, in which the braking surface abuts the guide track, in a reversible manner by an activation distance transverse to the guide track. The carrier of the braking device is rigidly coupled to the guide device.

Apparatus for guiding and braking a travelling body of an elevator system, which body is to be moved along a guide track

A roller for an elevator system has a roller body made of a metal material and a shell made of a POM material forming a running surface of the elevator roller. The shell and the roller body each have a wave profile running in a circumferential direction on a shared contact surface, wherein the shell has, on the running surface, a V-ribbed profile aligned with the wave profile of the roller body that has a rib spacing which substantially corresponds to a wave spacing of the wave profile. The elevator roller is manufactured using a molding process.

Elevator roller for an elevator system, elevator system having at least one such elevator roller, and method for producing an elevator roller

A brake device for braking an elevator installation traveling body movable along a guide rail includes a holder mounting a brake element having a brake surface movable relative to the holder between a freewheel position and a braking position. In a deactivated configuration, a pretensioning element does not exert any force moving the brake element towards the braking position, and in an activated configuration exerts such force. In a retaining state, a release element retains the pretensioning element in the deactivated configuration, and when activated into a released state, the release element changes the pretensioning element into the activated configuration. In an unactuated state, a friction-generating element does not abut the guide rail and, in an actuated state generates friction by abutting the guide rail to exert a force on the brake element and force the brake element towards the freewheel position.

Brake device, e.g. with an eccentric element, for braking a traveling body that can be moved in a guided manner along a guide rail in a movement direction

A brake device for braking a traveling body movable along a guide rail in a movement direction includes a holder mounting a brake element that has a brake surface directed toward the guide rail, the brake element being movable relative to the holder between a free-running position and a braking position. A pretensioning element is activated to exert a force that moves the brake element toward the braking position. A release element holds the pretensioning element in a holding state and is activated into a released state to reconfigure the pretensioning element from a deactivated configuration into the activated configuration. A pressing element in an actuated state generates a force on the brake element in a direction toward the guide rail to enable a reset of the brake device.

Brake device, e.g. with a wedge-shaped brake element, for braking a travelling body that can be moved in a guided manner along a guide rail in a movement direction

A method and a catching device are used to catch a traveling body in an elevator system wherein traveling body is movable along a rail. The catching device includes a first braking element, a second braking element, a first guide element, a second guide element and an actuating element. The first braking element and the second braking element are brought into contact with the rail for braking. A first linear bearing is formed between the first braking element and the first guide element and a second linear bearing is formed between the second braking element and the second guide element. Both guide elements are moved between a rest position and a braking initial position, the actuating element moving the two guide elements from the rest position into the braking initial position.

Electronic catching device that can be easily reset

An elevator system includes at least one car and at least one counterweight. At least two support means having different physical properties are arranged between the at least one car and the at least one counterweight.

Elevator system comprising a plurality of differing support means

A safety brake includes a first brake element, a first guide element, and an actuating element. The first brake element is mounted in a displaceable manner in a linear bearing on the first guide element. The first guide element can be moved between a rest position and a braking initial position. The actuating element is designed to move the first guide element from the rest position into the braking initial position, more particularly to activate the safety brake. The first brake element can carry out a braking movement from the braking initial position into a braking position. The braking movement returns the first guide element to the rest position. The first guide element is guided on a first parallelogram guide.

Safety brake for an elevator

A pulley for an elevator includes a base body made e.g. from steel and having a rotation-symmetrical circumferential surface. Additionally, a friction reducing coating is applied to the circumferential surface of the base body. Due to the friction reducing coating and, optionally, due to additionally smoothing the base body's circumferential surface before depositing the coating, a very low friction between an outside surface of the pulley and a contacting surface of a suspension traction member may be obtained. Thereby, guiding characteristics of the pulley may be improved and/or alignment requirements upon installation of the pulley may be relaxed. Preferably, the coating may comprise diamond-like carbon (DLC) or chromium nitride (CrN) such that the coating provides for superior wear resistance, slickness, corrosion protection and electrical characteristics.

Pulley for an elevator with a friction reducing coating and method for manufacturing same

An elevator installation wherein damage to a support for an elevator car and a counterweight, in particular damage to a sheath of the support, advantageously can be detected. At the elevator installation, a housing at least partially extending around the support, for example at a deflecting roller arrangement. A surface of the housing facing the support is electrically conductive and is electrically grounded. If the support or a wire coming out of the damaged support comes in contact with the housing, an electrical ground fault results. The ground fault can be detected by a security monitoring unit by monitoring a current flowing through the wires of the support, and the damage to the support can thus be inferred.

Elevator installation having a supporting means, around which an electrically conductive housing partially extends, in particular at a deflecting roller arrangement

In an elevator system, a belt-type carrier is guided over a pulley. In this case, longitudinal elevations of the belt-type carrier engage into longitudinal recesses on a roller contact surface. The roller has at least one retaining element, which is arranged laterally to the contact surface. In this case, a distance between an outermost longitudinal recess and the retaining element is less than half a longitudinal recess width of the roller contact surface.

Belt roller for an elevator system

A support for an elevator car in an elevator installation includes a plurality of tensile carriers, arranged parallel to one another, and a casing. The tensile carriers are enclosed by the casing, wherein the tensile carriers extend along a longitudinal axis of the support. The tensile carriers are freed at least partly from the casing on a section of the longitudinal axis of the support. Contact elements for electrical contacting of the exposed tensile carriers are fastened to the tensile carriers at this section.

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Obernau, Switzerland

Volker Zapf