Patent application number | Description | Published |
20080236954 | METHOD OF PREVENTING COLLISION OF TWO ELEVATOR CARS MOVABLE IN THE SAME SHAFT OF AN ELEVATOR INSTALLATION, AND CORRESPONDING ELEVATOR INSTALLATION - A method of preventing a collision of two elevator cars of an elevator installation, which cars move substantially independently of one another in a common shaft, and an elevator installation includes a collision protection system that produces a retardation of each moved elevator car by a stopping brake as soon as the effective distance between the elevator cars falls below a critical minimum distance. After retardation of the cars by the stopping brakes, an emergency stop system comes into function. A control system of this emergency stop system ascertains the instantaneous movement state of the elevator cars. With the help of the car brakes, which are associated with the elevator cars, an additional retardation of each moved elevator car is triggered when the movement state thereof fulfils definable emergency stop criteria. | 10-02-2008 |
20080302610 | ELEVATOR WITH TWO ELEVATOR CARS WHICH ARE DISPOSED ONE ABOVE THE OTHER IN A SHAFT - An elevator has at least two elevator cars, which are disposed one above the other in a shaft, which cars are vertically movable and which each have a drive, a counterweight and a traction device, wherein one drive is fixed at a first shaft wall and a second drive is fixed at an opposite second shaft wall and each drive has at least one drive pulley. At least one first deflecting roller is associated with each drive and is positioned the shaft wall that is opposite the drive and above the counterweight associated with the drive. The traction device is led from the counterweight over the deflecting roller to the drive pulley and from there to the elevator car. | 12-11-2008 |
20100089705 | APPARATUS AND METHOD FOR HOLDING AND BRAKING AN ELEVATOR CAR - An elevator car with brake equipment, which is arranged in the region of the elevator car, for holding and braking the same, which brake equipment includes: a brake unit which can co-operate with a brake rail, an actuating device which can produce an actuator force F | 04-15-2010 |
20100133046 | ELEVATOR SYSTEM, SUSPENSION ELEMENT FOR AN ELEVATOR SYSTEM, AND DEVICE FOR MANUFACTURING A SUSPENSION ELEMENT - An elevator system with a car or platform to transport passengers and/or goods as well as with a counterweight, which are arranged as traversable or movable along a travel path, and which are coupled and/or with a drive by a suspension element interrelating their motion. The suspension element is guided and/or driven by a traction sheave and/or a drive shaft and/or a deflecting pulley. The suspension element is sheathed and/or belt-type, with a first layer made of a first plasticizable and/or elastomeric material, containing a first exterior surface, and with at least one tension member—rope-type, tissue-type, or comprising a multitude of partial elements—that is embedded in the first layer of the suspension element. A manufacturing procedure for one of the suspension elements is provided. | 06-03-2010 |
20110005867 | ELEVATOR SYSTEM WITH TWO ELEVATOR CARS - An elevator system has two elevator cars arranged one over the other, but that can travel independently of each other. Both elevator cars are suspended on suspension and traction mechanisms and each is coupled to a separate counterweight. Both elevator cars have a lower cable, wherein the two lower cables are tensioned by separate tension devices. The lower cable of the first, lower elevator car is fastened to the first elevator car and the first counterweight, The lower cable of the second, upper elevator car is guided at the second elevator car and at least one of the two lower cable ends thereof is secured by a weighted body secured in place with play and/or free-floating. | 01-13-2011 |
20110024239 | OPERATING METHOD FOR AN ELEVATOR WITH TWO ELEVATOR CARS AND A COUNTERWEIGHT - Evacuation method for a lift with at least three lift bodies which are moved along at least one travel path and are connected together by way of support and traction means, wherein the first and the second lift bodies are suspended 1:1 by means of the support and traction means and the third lift body is suspended 2:1 by means of the support and traction means. The three lift bodies can each be blocked by way of a respective controllable blocking device. If passengers are present in a first one of the three lift bodies a further second or third lift body is blocked. In the case of presence of an imbalance between the weight masses of the two remaining unblocked lift bodies the first lift body is moved to an evacuation storey. | 02-03-2011 |
20110031069 | ELEVATOR SYSTEM WITH SPACING CONTROL - Lift system ( | 02-10-2011 |
20110120809 | COLLISION BRAKE FOR TWO ELEVATOR BODIES MOVING INDEPENDENTLY OF ONE ANOTHER - A collision brake for two elevator bodies, which move independently of one another, includes a first locking mechanism, which is disposed between the two elevator bodies and is fastened on a first of the two elevator bodies, and which has a brake body arrangement having at least one first brake body, which is movably mounted in the first locking mechanism toward a guide structure. The first locking mechanism has a positive guide, which converts a relative movement of the brake body arrangement in an ascension direction by the second of the two elevator bodies into a relative movement of the brake body arrangement on the guide structure. | 05-26-2011 |
20110192683 | ELEVATOR SYSTEM WITH SUPPORT MEANS STATE DETECTING DEVICE AND METHOD FOR DETECTING A STATE OF A SUPPORT MEANS - The invention relates to an elevator system having an elevator car, a load carrier for holding and/or moving the elevator car, and a detector device for detecting a condition of the load carrier, the detector device having an ultrasonic emitter for generating and coupling ultrasonic waves into the load carrier and for generating ultrasonic waves in the load carrier, and an ultrasonic receiver for detecting ultrasonic waves of the load carrier. | 08-11-2011 |
20110220438 | LOAD SUPPORTING BELT - A supporting belt for a transport device, such as an elevator system, includes at least one stranded wire made of an electrically conducting material for absorbing the forces absorbed by the supporting belt and an electrically insulating jacket that encloses the wire. In order to determine the state of the wire, the wire can be contacted by a contact element securely and reliably and in an exact manner. To achieve this, the jacket is at least partially removed in the area of an opening of the supporting belt and the wire is at least partially exposed in the area of the opening. The wire thus does not include a jacket substantially perpendicularly to a longitudinal axis formed by a center point of a cross-section of the wire. The wire can be contacted by a contact element without the jacket being pierced. | 09-15-2011 |
20110253487 | METHOD OF MONITORING AN ELEVATOR SUPPORT MEANS, AN ELEVATOR SUPPORT MEANS MONITORING DEVICE, AND AN ELEVATOR INSTALLATION WITH A MONITORING DEVICE OF THAT KIND - An elevator support monitoring device in an elevator system and a method for monitoring the elevator support means monitor a characterizing property, preferably an electrical resistance, of the elevator support or of a tension support of the elevator support and a sudden change in the characterizing property is detected. A state of the elevator support is determined by evaluating several consecutive, sudden changes in the characterizing property. | 10-20-2011 |
20110259674 | ELEVATOR INSTALLATION - An elevator installation includes a first elevator car and a second elevator car, each having a respective braking device, and a safety system that monitors the elevator cars. The safety system has for each braking device a braking force regulating device for regulating a braking force of the respective braking device. The safety system activates at least one of the braking devices by the associated braking force regulating device in order to prevent collision of the first elevator car with the second elevator car. | 10-27-2011 |
20110308893 | ELEVATOR WITH ROLLER-PINION DRIVE - An elevator has a car movable within a hoistway, a rack extending along the hoistway, the rack having a toothed profile with wave troughs and wave crests and a drive mounted in proximity to the rack so that the drive interacts with the rack to move the car. The drive includes a roller pinion unit fixedly mounted on a shaft and having a predetermined number of roller pinions arranged in a circle around the shaft and extending parallel to the shaft. The roller pinion unit interacts with the toothed profile of the rack. The drive also includes a motor unit configured to rotate the shaft. Optionally, the drive includes a brake unit configured to act on the shaft. | 12-22-2011 |
20120090924 | CONTACTING DEVICE - A contacting device for electrically contacting tensile carriers of a suspension in an elevator system includes a housing having a recess in which an exposed segment of the suspension can be received so that the housing at least partially encloses the exposed segment of the suspension. Raised areas and recesses are alternatingly disposed on an inner side of the housing, wherein a raised area and a recess face each other in a state of use. At least one contact element is disposed in a recess of the housing, wherein the at least one raised area can be pressed against a tensile carrier of the suspension, such that the tensile carrier is brought into electrical contact with the contact element. | 04-19-2012 |
20120152656 | MULTI-CAGE ELEVATOR WITH BRAKING STATE INDICATION - An elevator includes a first elevator cage, a second elevator cage, the two cages being movable along a common travel path, a braking state indicating unit, which is fastened to the first elevator cage, and a braking state detection unit, which is fastened to the second elevator cage. The braking state indicating unit indicates a braking state of the first elevator cage and the braking state detection unit detects the indicated braking state of the first elevator cage. When change in the braking state of the first elevator cage occurs, the braking state indicating unit initiates measures in order to maintain safe operation of the elevator. | 06-21-2012 |
20120152659 | ACTUATING AND RESETTING A SAFETY GEAR - A device can actuate and reset a safety gear in an elevator system. The device contains a pressure accumulator, possibly a compression spring, which, in case of need, can move at least two engagement elements of the safety gear essentially synchronously into an engaged position, and a remotely actuatable resetting device, which can retension the pressure accumulator into a ready position. | 06-21-2012 |
20120305334 | SHAFT ACCESS ENABLING DEVICE OF AN ELEVATOR SYSTEM - A shaft access enabling device of an elevator system has a shaft access control unit and at least one access monitoring unit, wherein the shaft access control unit controls an operating state of the at least one access monitoring unit and the access monitoring unit monitors at least one shaft access. The shaft access control unit has at least two different operating modes for controlling the operating state of the at least one access monitoring unit and inspects access authorization before changing between the at least two operating modes thereof. | 12-06-2012 |
20120305338 | REGULABLE ELEVATOR BRAKE - An elevator brake includes a housing and a brake unit, which is movable in an axial direction on a path between a braking position and a starting position, which includes at least one pull unit, and which is moved at least by a first spring force of at least one brake spring. A movement in the axial direction against the spring force of the at least one brake spring is generated by a stroke unit, which generates a stroke, at the pull unit of the brake unit. The first spring force of the at least one brake spring is reduced by a second spring force of a compensating spring stressed by the stroke of the stroke unit. | 12-06-2012 |
20130025236 | ALIGNING SHAFT DOORS OF AN ELEVATOR - A sill is aligned in the vertical direction on a laser line. The alignment of the sill in the horizontal direction is undertaken with a line set of an assembly jig. The line set includes at least two lines, for example a first line and a second line. The first line runs by a first run from the first part of the assembly jig to a third marking of the first line and from there by a second run to the second part of the assembly jig. If the lines are tightened and the marking is at one corner of the sill and the free end of the second line at the other corner of the sill, the sill is aligned in horizontal direction. | 01-31-2013 |
20130098714 | SLIDING GUIDE SHOE FOR AN ELEVATOR - A sliding guide shoe for an elevator for conveying persons or goods includes a guide shoe housing and a two-part insert, which insert is inserted in the guide shoe housing for guiding an elevator car along a guide rail extending in a longitudinal direction. The insert includes a slide element connected with a support element and removable laterally from the sliding guide shoe in the longitudinal direction. The slide element is insertable into or removable from the support element only from one longitudinal side. | 04-25-2013 |
20130161131 | SAFETY DEVICE FOR AN ELEVATOR WITH A PLURALITY OF CAGES - An elevator has a first and a second cage, which are movable along a common travel path. In addition, the elevator includes a safety device, by which the two cages can be monitored, and a shaft information system, which is connected with the safety device and by which the speed and the position of the two cages can be determined. If the two cages fall below a safety spacing, a first braking measure can be initiated for at least a first cage by means of the safety device. A retardation plot for the at least first cage is predeterminable by the safety device on initiation of the first braking measure. In that case, a second braking measure can be initiated for the at least first cage by means of the safety device if the retardation plot is exceeded. | 06-27-2013 |
20140008152 | FAULT DIAGNOSIS OF AN ELEVATOR INSTALLATION - An elevator installation includes a sensor by which vibrations generated during operation of the elevator installation are detectable and an evaluating circuit, which is connected with the sensor and by which the vibrations detected by the sensor can be evaluated. The detected vibrations can be compared by means of the evaluating circuit with a predeterminable operating value and a predeterminable threshold value. | 01-09-2014 |
20140339025 | GUIDE/DAMPER ARRANGEMENT FOR AN ELEVATOR - A guide/damper arrangement for an elevator has a sliding guide shoe, which can be moved along on a guide rail and for guiding an elevator car, and a damper unit, for reducing vertical oscillations of the elevator car during standstill, and the two form a structural unit. The damper unit and the guide shoe are fastened on a common carrier, wherein the carrier is fastened on the elevator car. The damper unit is integrated in the guide shoe wherein a sliding surface, which is assigned to a guide surface of the guide rail and belongs to the sliding guide shoe, has arranged in it at least one damping region which is separate from the sliding surface, is configured as a braking surface and can be pressed against the guide rail with the aid of a control device in order to reduce the vertical oscillations of the car. | 11-20-2014 |
20140345121 | ALIGNING SHAFT DOORS OF AN ELEVATOR - An elevator shaft door sill installation apparatus includes first and second assembly jig parts mounted at gage guide rails and a laser arranged at one of the parts for aligning the sill in the vertical direction. The alignment of the sill in the horizontal direction is undertaken with a line set including at least two lines, a first line having a first run extending from the first part to a first sill corner and from there by a second run to the second part, and a second line extending from the second part to a second sill corner. If the lines are tightened and a marking between the first and second runs is at the first corner of the sill, the sill is aligned in the horizontal direction. | 11-27-2014 |