Otis Elevator Company

General Electric Company

Justin Billard

Daryl J Marvin

Antonio Martins

Erik Khzouz

Richard N Fargo

Zbigniew Piech

Harold Terry

Anthony Cooney

Randall S Dube

James M Draper

Juan Antonio Illan

Yu Pu

Dean A Robarge

Brad Guilani

Randy Roberts

Robert Joseph Caggiano

Leandre Adifon

Guohong Hu

Nicolas Fonteneau

Kyle B Martin

Kiron Bhaskar

David J Lanesey

Marcin Wroblewski

Adrian D West

Luis Martí Sánchez

Jamie A Rivera

Andrés Monzon

Jeffrey Sepelak

Richard Marchetti

Luis Martí SÁNCHEZ

Dary J Marvin

A roller speed sensor for detecting a speed of an elevator car of an elevator system including: a first roller configured to rotate along a guide rail of the elevator system when the elevator car moves up or down an elevator shaft, the first roller including: one or more magnets; and a first sensor pair located proximate the first roller, the first sensor pair being configured to detect a rotational speed of the one or more magnets.

Roller speed sensor with magnets and sensors

An electronic actuator for an elevator safety brake system, the actuator having: an electromagnet assembly; and a first magnet assembly configured for being retracted from engagement with a rail depending on an energized state of the electromagnet assembly, the first magnet assembly including: blocks spaced apart from each other, respectively defining block bodies, and elongated block legs respectively extending aft from the block bodies; and a first magnet is disposed between the block bodies; wherein the electromagnet assembly includes: a core that defines: a core body extending between core ends that are spaced apart from each other; and core stub legs respectively extending forward from the core ends that are positioned adjacent to the elongated block legs when the first magnet assembly is retracted; and a coil winding wound about bobbins that are placed over the core body, the elongated block legs are longer than the core stub legs.

Electronic actuation module for elevator safety brake system

Electromagnetic actuators for an elevator systems and encapsulated components thereof are described. The encapsulated components include an encapsulating body and a component assembly is arranged within the encapsulating body, wherein at least some parts of the component assembly are contained within a material of the encapsulating body.

Encapsulated components of electromechanical actuators for elevator systems

According to an embodiment, an elevator system including: a beam climber system configured to move an elevator car through an elevator shaft by climbing a first guide beam that extends vertically through the elevator shaft, the first guide beam including a first surface and a second surface opposite the first surface, the beam climber system including: a first wheel; a second wheel; a first traction belt wrapped around the first wheel and the second wheel, the first traction belt being in contact with the first surface; and a first electric motor configured to rotate the first wheel, wherein the first traction belt is configured to rotate when the first wheel rotates.

Ropeless elevator propulsion system

Magnet assemblies for electromechanical assemblies of elevator systems are described. The magnet assemblies include a magnet and first and second block assemblies arranged on opposite sides of the magnet. In some configurations, the block assemblies each include a respective friction engagement surface and are formed of layers of sheet metal, with a portion of the layers having blade teeth that form a friction engagement surface for engagement with a guide rail. In some configurations, each of the block assemblies are formed from powder metal sintering and include a monolithic tooth configuration configured to form a friction engagement surface for engagement with a guide rail. In some configurations each of the block assemblies includes an abrasive coating configured to form a friction engagement surface for engagement with a guide rail.

Magnet assemblies of electromechanical actuators for elevator systems

Magnet assemblies of electromechanical assemblies for elevator systems are described. The magnet assemblies include a magnet, at least one rail engagement block, and an encapsulating body encapsulating the magnet and the at least one rail engagement block, wherein the encapsulating body is formed from a non-magnetic material. A target extension is formed from the material of the encapsulating body and extends away from the magnet and the at least one rail engagement block. A proximity switch target is held within the target extension for detection by a proximity switch.

Magnet assemblies of electromechanical actuators for elevator systems having encapsulated switch

Disclosed is a brake assembly for an elevator system, having: a housing defining a housing cavity, a housing forward end with a forward end opening into the housing cavity, and a housing aft end; a first magnet disposed in the housing cavity, near the forward end opening; a second magnet disposed in the housing cavity, between the first magnet and the housing aft end, and wherein the second magnet is configured to: reduce attraction between itself and the first magnet, whereby the first magnet moves at least partially through the forward end opening to engage a guide rail that is metallic, thereby preventing vertical movement of the first magnet of the brake assembly, when magnetically connected to the rail, relative to the housing; and attract the first magnet to draw the first magnet into the housing cavity.

Elevator brake assembly with electromagnet assembly and permanent magnet assembly that engage one another

An electronic safety actuation device for braking an elevator car includes a safety brake movable between a non-braking position and a braking position, a first electronic safety actuator operably coupled to the safety brake via a first link member, and a second electronic safety actuator operably coupled to the safety brake via a second link member. Operation of the first electronic safety actuator applies a force to the first link member to move the safety brake from the non-braking position to the braking position. Operation of the second electronic safety actuator applies a force to the second link member to move the safety brake from the non-braking position to the braking position.

Electronic safety actuator for lifting a safety wedge of an elevator

The present disclosure relates generally to a selectively operable safety brake including a magnetic brake operably coupled to a rod and disposed adjacent to a metal component, the magnetic brake configured to move between an engaging position and a non-engaging position, said magnetic brake, when in the engaging position contemporaneously with motion of the machine, moving the rod in to thereby move the safety brake from the non-braking state into the braking state, and an electromagnetic component including a retention apparatus, the electromagnetic component configured to move the magnetic brake from the engaging position to the non-engaging position upon receipt of a resetting signal.

Electromagnetic safety trigger

Disclosed is an electronic safety brake actuator (ESBA) for actuating an electronic brake, the ESBA having: a first member having a proximate side and a distal side spaced in a widthwise direction, a first nominal front surface and a first rear surface spaced in a depth-wise direction, and a first top surface and a first bottom surface spaced in a height-wise direction, a plurality of side members including a proximate member and a distal member, the proximate member disposed adjacent the proximate side of the first member and the distal member disposed adjacent the distal side of the first member, the first member being magnetic and the plurality of side members being at least partially non-magnetic, and the plurality of side members including a respective plurality of nominal front surfaces including a proximate front surface and a distal front surface, the plurality of nominal front surfaces being co-planar.

Magnet assembly for an electronic safety brake actuator (ESBA)

A safety device configured to aid in braking movement of a hoisted object is provided including a mounting frame. A brake block is connected to the mounting frame and is operably coupled to a safety brake. An inner block assembly is disposed between the mounting frame and the brake block. The inner block assembly is movable relative to both the mounting frame and the brake block. Upon detection of a predetermined condition, the brake block is configured to engage and adjacent guide member to actuate the safety brake.

Device and method for actuating an elevator safety brake

A safety gear alignment system for an elevator system includes an elevator shaft and an elevator car having an interior region and disposed in and moveable within the elevator shaft. Also included is an upright structure operatively coupled to the elevator car, the upright structure defining at least one aperture. Further included is a safety gear member having a brake and a frame, the frame operatively coupled to the upright structure. Yet further included is at least one access region defined by the frame of the safety gear member, the access region accessible from the interior region of the elevator car and wherein measurement between the frame and a guide rail of the elevator shaft is made for alignment of the safety gear member relative to the guide rail.

Elevator safety gear alignment system and method

A braking device is operable to aid in braking a hoisted object relative to a guide member. The braking device includes a mounting structure connected to the hoisted object, and first and second brake pads positioned on the mounting structure on opposing sides of a passageway through which the guide member extends. The first and second brake pads each include a contact surface that is operable to frictionally engage the guide member. The second brake pad engages the mounting structure in a manner that enables the second brake pad to move relative to the mounting structure between a non-braking position and a braking position. The braking device includes a brake initiator that is selectively operable to initiate movement of the second brake pad from the non-braking position toward the braking position by selectively actuating an actuatable portion of the brake initiator from a non-deployed position to a deployed position.

Braking device for braking a hoisted object relative to a guide member

An exemplary elevator braking device comprises a brake housing. A plurality of rollers are supported by the brake housing. The rollers are arranged to be positioned on opposite sides of a guiderail. The rollers are selectively moveable between a first position in which the rollers are spaced apart a first distance and a second position in which the rollers are spaced apart a second, smaller distance so that the rollers engage and roll along opposite sides of the guiderail. At least one biasing member is supported by the brake housing. The biasing member is associated with at least one of the rollers and biases the associated roller toward the other roller in the second position. A plurality of braking surfaces are supported by the brake housing. At least one braking surface is associated with each of the rollers. Each braking surface engages a periphery of the associated roller that faces the side of the guiderail. Friction between the periphery of the associated roller and the braking surface provides a stopping force.

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Amston, CT, United States of America

Justin Billard