Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
  • B66B5/0043—Devices enhancing safety during maintenance
  • B66B5/005—Safety of maintenance personnel
  • B66B5/0081—Safety of maintenance personnel by preventing falling by means of safety fences or handrails, being operable or not, mounted on top of the elevator car

Definitions

• the present invention relates to an elevator car for an elevator system and to an elevator system equipped with such an elevator car.
• elevator cars are used to carry people or objects in general vertically.
• the elevator car can be moved up and down within a hoistway by means of a drive.
• balustrade which is permanently installed on the roof of the elevator car and, for example, circumferentially over the roof over this upwards in a sufficient height, so that people standing on the roof can not fall over the balustrade.
• the provision of such a balustrade entails additional material and assembly costs and / or the balustrade must in turn comply with certain safety regulations, for example to ensure that a person can not be trapped between the balustrade and a ceiling of the elevator shaft.
• EP 1 849 732 A1 a so-called free space limiter for an elevator car, in which a generic comparable elevator car is disclosed which projects a fall protection arrangement projecting over an edge of the roof for protecting persons has a crash in the elevator shaft.
• a free space limiter projects permanently from the side of the elevator car and largely closes in this way a clearance or gap between the elevator car and, for example, a side wall of the elevator shaft, so that persons located on the roof of the elevator car can not slip through this space or gap and crash.
• JP 8-133617 A further designed as free space limiter fall protection arrangements have become known.
• the document shows, for example, a fall arrest arrangement with two, each arranged at the edge of the roof edge, fold-out struts.
• the struts serve to hold a safety net.
• the safety net In the unfolded state, the safety net is stretched between the struts, whereby the safety net for fall protection can catch people in the event of a fall and thus prevent them from falling into the collecting shaft.
• an elevator car in which suitable safety measures reliably prevent a person sitting on a roof of the elevator car from falling.
• the safety measures are structurally easily implemented, can be realized cost-effectively and / or impede as minimally as possible a method of the elevator car within the elevator shaft.
• an elevator car for an elevator installation which has a floor, a roof and a plurality of side walls.
• the side walls define in plan view of the elevator car an outer contour of the elevator car.
• the elevator car further comprises a plurality of elongated securing struts for forming a fall protection arrangement, which project from the roof of the elevator car with its longitudinal extension direction transversely to an edge of the roof over the outer contour of the elevator car to the outside.
• the securing struts are arranged at intervals to each other on the roof, that a falling through of the person to be protected between two adjacent securing struts can be prevented.
• a second aspect of the invention relates to an elevator installation comprising an elevator shaft and an elevator car according to an embodiment of the aforementioned first aspect of the invention.
• the securing struts are arranged on the elevator car in such a way that both a spacing between adjacent securing struts and a distance between a securing strut on the one hand and a wall of the elevator shaft or an elevator shaft component mounted on the wall is less than 30 cm for all securing struts.
• the securing struts protrude into it the gap between the elevator car and, for example, elevator shaft wall, wherein the securing struts are formed and spaced from each other, that remaining gaps between adjacent securing struts or between a securing strut and a wall of the elevator shaft or a component of the elevator system statically mounted on this wall is small enough so that a person can not slip through and then crash.
• a geometry and / or configuration of the elongated securing struts may be suitably selected so that they can withstand mechanical stresses, such as occur when a person steps on the securing strut or falls, without deforming beyond a safety-relevant dimension.
• the stability of the securing strut should be selected such that it does not deform so much at such a load occurring that distances between a securing strut and an adjacent securing strut or a wall of the elevator shaft are increased over a permissible extent of, for example 30cm.
• the securing struts are structurally such that a width of a securing strut, measured perpendicular to its longitudinal direction and parallel to the direction of extension of the roof, is less than twice a height of the securing strut, measured perpendicular to its longitudinal direction and perpendicular to the plane of extension of the roof.
• an aspect ratio of the securing struts should be as small as possible 2: 1.
• such an aspect ratio may even be equal to or less than 1: 1, that is, a width of the securing strut is smaller than the height thereof.
• the aspect ratio may also be selected to be equal to or less than 1: 2, that is, the width of the securing strut is less than half the height.
• the securing strut should not only be elongate, that is, have a greater extent in its longitudinal direction than in both orthogonal thereto directions, but also be relatively narrow, that is preferably have a width which is less than twice or even the simple Has height of the securing strut.
• Such securing struts can be mechanically stable and at the same time also have a low weight.
• An overall outer contour of the elevator car that is a defined by the side walls contour plus a supplemented by the laterally projecting securing struts contour is not enlarged over a large area, but the securing struts protrude only locally linearly into the gap. Since the overall outer contour can in this case remain smaller than, for example, in the case of the above-mentioned conventional free-space delimiters, an air resistance of the elevator car during the process by the elevator shaft can be kept relatively low.
• the securing struts have a width of less than 10cm, preferably less than 5cm or 3cm. Furthermore, according to one embodiment, the securing struts may have a height of more than 2 cm, preferably more than 5 cm. Securing struts with such dimensions promise a sufficient mechanical stability with low material usage, low weight and low contribution to air resistance of the elevator car.
• the securing struts have a length of at least 5 cm, preferably at least 10 cm or more preferably at least 20 cm, over the outer contour of the elevator car to the outside.
• the securing struts locally block a free space or gap adjacent to the elevator car.
• An overall length of the securing struts can be significantly longer than the outwardly projecting part, since a part of the securing struts are located on or on the roof of the elevator car and can be secured there.
• a lateral distance between adjacent securing struts is greater than a width of the securing struts.
• a plurality of securing struts may be provided on the roof of the elevator car, which are each elongated and project beyond the contour of the roof or the elevator car, wherein the securing struts in the lateral direction, that is in the direction parallel to an edge of the roof, from each other spaced, preferably at regular intervals, and a distance between adjacent securing struts is greater than a width of a single securing strut. So far apart from each other laterally Securing struts may contribute to reducing the weight of the elevator car and / or reducing air resistance caused by the securing struts.
• the securing struts are arranged along edges of the roof at intervals of less than 30 cm from one another. Such a small spacing between adjacent securing struts may be necessary to prevent a person from slipping between two adjacent securing struts.
• the securing struts are formed as elongated metal profiles at least in a region projecting beyond the edge of the roof.
• they may be formed as elongated metal hollow profiles.
• Such profiles may be formed with the above-mentioned aspect ratio.
• Metal profiles or hollow metal profiles can allow a very high mechanical strength and low weight.
• materials a variety of metals, such as steel, can be used.
• the securing struts can also be made of other materials and / or with a different structural or geometric design.
• composite materials can be used.
• the securing struts may be substantially flush with an upwardly facing surface of the roof.
• “Flushing” may mean that an upwardly facing surface of a securing strut extends approximately in a same plane as the upwardly facing surface of the roof
• “Substantially flush” can be interpreted to mean that the plane of extent of the upward-facing surface of the securing strut at best differs so slightly from the plane of extension of the upward surface of the roof in the vertical direction that between the surface of the roof and the surface the securing strut neither a significant paragraph up nor a significant paragraph down occurs.
• a maximum generated paragraph that is, a maximum permissible deviation from an ideal level, can be example, less than 5 cm, preferably less than 2 cm or even less than 1 cm, be selected. Among other things, it can be prevented that the securing strut for persons located on the roof can become a "stumbling block".
• the securing struts are straight along their longitudinal extension direction.
• the securing struts can be provided as linear components, for example as straight rods or tubes. Such securing struts can be easily manufactured and assembled.
• the securing struts may be curved or kinked along their longitudinal direction.
• the securing strut is indeed elongated, i. is longer than wide, but not straight over its entire length but at least in some areas with bends or kinks.
• such a curvature or kink (for example in the form of a bend) can be configured such that a securing strut first extends outwards from the roof of the elevator car perpendicular to its edge, but then has a curvature or a kink so that further outward areas of the securing strut can extend obliquely or even parallel to the edge of the roof.
• adjacent to corners of the roof of the elevator car can be sufficiently blocked by means of such curved or kinked securing struts also prevailing clearances or gaps between the outer contour of the elevator car and surrounding stationary structures of the elevator shaft.
• the securing struts may be attached to the roof or to one of the side walls or to both the roof and one of the side walls.
• a securing strut can be fastened exclusively to the roof.
• the securing strut can be fastened exclusively to one of the side walls.
• the securing strut may be attached to both the roof and one of the side walls.
• the securing strut can be easily mounted when only attaching to the roof. When only attached to one of the side walls, a good flush of the securing strut with the roof can be achieved.
• a combination of fastening On the roof and attachment to a side wall can make a good compromise between simple attachment, good flush and possibly a high mechanical stability.
• the securing strut can be firmly connected, for example, with the roof and / or the side wall and / or be supported in partial areas only to pressure.
• At least one elevator shaft component extending vertically through the elevator shaft and / or stationarily mounted in the elevator shaft is arranged in the elevator shaft.
• the securing struts are arranged in this case on the elevator car in areas laterally adjacent to the elevator shaft component.
• stationary guide rails may for example be provided in the elevator shaft or extend vertically through the elevator shaft extending movable support means such as ropes or belts.
• movable support means such as ropes or belts.
• these elevator shaft components should not collide with the securing struts provided on the elevator car and projecting beyond its outer contour when the elevator car is moved within the elevator shaft.
• clearances between the elevator car and the elevator shaft wall or elevator shaft components should be sufficiently blocked by the securing struts.
• the securing struts may be provided at least in the gap located portion or at least in the region of the free end at least upwards with a foam or other protective material.
• FIG. 1 shows a side view of an elevator car within an elevator shaft of an elevator installation according to an embodiment of the present invention.
• Fig. 2 shows a perspective view of a part of a roof area of an elevator car according to an embodiment of the invention.
• FIG. 3 shows a top view of an elevator car inside an elevator shaft of an elevator installation according to an embodiment of the present invention.
• FIG. 4 shows a perspective view of a securing strut on an elevator car according to an embodiment of the invention.
• FIG. 5 shows a side view of an alternatively configured securing strut of an elevator car according to an embodiment of the invention.
• Fig. 6 (a) to (f) show possible profiles of securing struts for elevator cars according to the invention.
• the elevator car 1 shows an elevator car 1, which can be moved in the vertical direction with the aid of a cable-like or belt-like carrier means 3 within an elevator shaft 5 of an elevator installation 7.
• the elevator car 1 has a bottom 9, a roof 11 and a plurality of side walls 13. On a side directed toward a floor 17, the elevator car 1 also has an elevator door 15.
• a free space 23 On a rear side of the elevator car 1 is located between the local side wall 13 of the elevator car 1 and a wall 19 of the elevator shaft 5, a free space 23.
• this space 23 for example elevator shaft components and / or a counterweight and / or other components can be mounted stationary or be moved (not shown in Fig. 1).
• the clearance 23 can have dimensions of, for example, more than 30 cm, so that a person located on the roof 11 of the elevator car 1 could slip between the elevator car 1 and the wall 19 of the elevator shaft 5 through the free space 23 and fall down.
• a plurality of elongated side struts 21 are provided on the elevator car 1, which extend in approximately horizontal direction and project beyond an outer contour of the elevator car 1 formed by the side walls 13 to the walls 19 of the elevator shaft 5.
• FIG. 3 shows a plan view of the roof 11 of an elevator car 1 within an elevator shaft 5.
• a plurality of elongated securing struts 21 are arranged in the region of the roof 11 and protrude laterally over the side walls 13 beyond.
• the securing struts 21 are arranged laterally, that is, in a direction parallel to an edge 25 of the roof 11, spaced from each other.
• a lateral distance D between adjacent securing struts 21 is significantly greater than a width b of the individual securing struts 21.
• the lateral distance D between adjacent securing struts 21 is less than 30 cm.
• the elongated securing struts 21 are arranged and formed on the elevator car 1 in such a way with a length 1 in the space 23 that in addition to the distance D between adjacent securing struts 21 and a distance between the securing struts 21 and an adjacent wall 19 of Elevator shaft 5 or attached to this wall 19 elevator shaft component 27, 29, 31 is smaller than 30cm.
• the elevator shaft components may be, for example, guide rails 29 and their holders 27 or may be formed by partial regions 31 of the suspension elements 3.
• kinked trained securing struts 22 can serve in particular near a corner 33 of the contour of the elevator car 1 to locally protrude into existing parts of the free space 23 there and to be able to block it fall-arresting can.
• 4 shows a simple embodiment of a securing strut 21 and its attachment to the roof 11 of an elevator car 1.
• the securing strut 21 is formed as a rod-shaped metal profile with a rectangular, in particular square, cross-section.
• the securing strut 21 rests with a portion 37 on the roof 11 and is secured thereto with a fastener 35 such as a screw, a rivet or the like.
• a plurality of fastening means 35 in order to fasten the securing strut against rotation.
• Another portion 39 of the securing strut 21 protrudes transversely, preferably vertically, beyond the edge 25 of the roof 11 to the outside and thus into the free space 23 inside.
• the securing strut 21 is structurally designed such that its width b is at most twice as large as its height h. The securing strut 21 thus does not protrude flat from the roof 11 to the outside, but only linearly, approximately as a one-dimensional structure.
• the securing strut 21 in a side view of the elevator car 1.
• the securing strut 21 is formed as an elongate metal profile 43.
• a overlapping with the roof 11 portion 37 of the securing strut 21, however, is designed only as a relatively flat sheet and mito e the fastening device 35 is attached to the roof 11.
• An additional angle 41 may be provided in order to additionally support the securing strut 21 on pressure on the side wall 13 of the elevator car 1.
• a surface 45 of the securing strut 21 is approximately flush with a surface 47 of the roof 11. Nevertheless, the securing strut 21 can withstand high mechanical loads, since it is additionally supported laterally on the side wall 13 of the elevator car 1.
• FIGS. 6 (a) to (f) show various possibilities of profiles or hollow profiles 43, with which the entire securing strut 21 or only, for example, subregions 39 thereof can be formed.
• Each of these profiles contributes to a high mechanical stability of the securing strut 21, in particular when loaded in the vertical direction.
• the securing struts 21 may additionally comprise a foam layer (not shown) or other protective material.
• the foam layer may completely encase the securing struts 21 or may be attached only to the upper surface of the securing strut 21. Thanks to the foam layer, people can be protected from injury.

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• Cage And Drive Apparatuses For Elevators (AREA)
• Body Structure For Vehicles (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

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ID=54850149

Family Applications (1)

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Citations (2)

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• 2016
  • 2016-12-15 ES ES16809841T patent/ES2783373T3/es active Active
  • 2016-12-15 WO PCT/EP2016/081218 patent/WO2017102961A1/de not_active Ceased
  • 2016-12-15 PL PL16809841T patent/PL3390256T3/pl unknown
  • 2016-12-15 EP EP16809841.6A patent/EP3390256B1/de active Active
  • 2016-12-15 AU AU2016369344A patent/AU2016369344B2/en not_active Ceased
  • 2016-12-15 CN CN201680071281.7A patent/CN108367887B/zh active Active

Patent Citations (2)

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