EP1805095B1 - Door sill with integrated light unit for elevators - Google Patents

Description

The invention relates to an elevator installation with an elevator car, which is arranged movably in a lift shaft between floors, the elevator car having a car door and / or the elevator shaft in the floors of a shaft door. The car door or landing door is assigned a threshold profile. Furthermore, the invention relates to a method for displaying a gap between an elevator car and a floor in an elevator installation, wherein the elevator cabin is moved in a lift shaft between floors.

Modern elevators have a landing door and a cabin door. The shaft door closes the elevator shaft on the respective floors, if there is no lift cage on this floor. The shaft door is opened when the elevator car stops on a floor for passengers to get in and out. The elevator car is closed by an elevator door. This elevator door is closed during the movement of the elevator car in the elevator shaft. To get in and out of a stop on a floor, the elevator door is opened. The manhole or car door is often formed in two parts and consists essentially of two door leaves, of which a first door leaf is guided to about the middle of a door opening and a second door leaf closes the remaining open half of a door opening. Regardless of the embodiment, the manhole or car door are guided in a threshold profile at least in a floor area of the floor or elevator car. The threshold profile is usually made of aluminum. Despite high manufacturing accuracy a gap remains between the elevator car and the respective floor at a stop of the elevator car. This gap is largely harmless with respect to injury to persons. However, objects may fall into this gap. Moreover, in the event of an erroneous functioning of the elevator installation, it is possible that there is a level difference between the height of the floor and the height of the elevator car which forms a dangerous step or step which can lead to injuries to persons entering and exiting.

From the JP 04235886 an elevator installation is known, which has a threshold profile in the floor of the floor and a threshold profile in the elevator car floor. On the elevator car door a protruding outwardly plastic cap is arranged. Below the plastic cap, a light source is installed, which emits light through a slot of the plastic cap, which is visible to the passenger getting in or out.

Such an arrangement is no longer possible in today's elevator systems, since the gap between floor level and elevator car does not allow attachment of additional elements. Typically, the gap is 1 cm wide. The available. Space is thus severely limited and the threshold profile of the elevator car is therefore narrow. In addition, the slot in the plastic cap, through which the light passes through, dirty - because the elevator users step on this plastic cap - which means that the warning is no longer perceptible when a difference in level and thus is useless and a security risk.

Against this background, the object is to provide an elevator installation and a method in which pointed to a gap or step between floor and elevator car and the warning function is not affected by contamination, without additional elements and / or space are necessary.

This object is solved by the features of the independent claims.

The invention is based on the idea that in an elevator installation with an elevator car, which is arranged movably in a lift shaft between floors, wherein the elevator car has a car door or the elevator shaft in the floors a shaft door, at least one light module to warn of a gap or a Stage is arranged between the cabin and floor of the elevator installation at a position at which the warning is clearly visible. By integrating the light module in a threshold profile from the floor and / or the elevator car, the light is emitted as a warning, and safely perceived by the elevator users. Advantageously, the warning light is emitted exactly at the point where the danger occurs through a gap or a step. Advantageously, the light module is subjected in the threshold profile by the constant door movement a cleaning effect, so that contamination of the light module is constantly eliminated and thus the warning to a gap or at a level can be safely perceived.

The light module is advantageously to be arranged in the floor area of the elevator car and / or the floor. Since people usually look at the ground when entering or leaving an elevator, a light module, which is arranged in the threshold profile of the car door or shaft door, is particularly clearly visible.

The threshold profile advantageously has a groove. In this groove, the light module is mounted directly, without additional mechanical elements for attachment and / or protection are necessary.

The car door and / or the landing door are advantageously each guided in the corresponding threshold profile in a Türführungsnut. Such a Türführungsnut on top of the threshold profile is necessary to guide the elevator door. The Türführungsnut is the area of the threshold profile, which is located in the immediate vicinity of the door and leads at least one door leaf. The light module according to the invention space-saving integrated and installed on the top of the threshold profile in this Türführungsnut. Space saving means that the width of a threshold profile is not affected by the presence of the light module. The minimum widths of the threshold profile which is largely due to the width of the at least one door leaf and space for fastening means, remains unchanged narrow. This integration of the light module in the Türführungsnut has the advantage that the threshold profile is not affected by an additional groove in its stability. In addition, additional grooves adjacent to the Türführungsnut are not necessary to accommodate and collect possible debris, without that they can be regularly moved back into the Türführungsnut. Additional elements and / or space are thus not necessary to integrate the light module in the threshold profile. Also, the installation and maintenance of the light module are simplified and faster because the light module is integrated to save space directly in the threshold profile without additional mechanical elements.

Advantageous embodiments can be found in the dependent claims.

In a preferred embodiment, the light module extends in a lateral region of the elevator car and / or the floor. Also, the light module is at least partially visible on the lateral areas of the elevator car or the floor. In this case, the threshold profile may extend into the respective lateral region, in which case the light module is integrated in this lateral threshold profile. The light module can be arranged exclusively in the lateral region of the elevator car or the floor. However, it is also possible for the light module both in the floor area as well as in the lateral area to arrange. Further, it is possible to arrange the light module in the lateral area of the elevator car or the floor without a threshold profile.

In order to enable a trouble-free operation of the light module, it is advantageously provided to arrange the light module in at least one vertical wall of the door guide groove. Due to this arrangement of the light module, it is prevented that dirt in the door guide groove obscures the light module. In addition, a possible dirt deposit in front of the light module is eliminated by a back and forth movement of the doors in the Türführungsnut.

In the case of a telescopic lift door with a plurality of door leaves, the light module is advantageously arranged between the two door guide grooves for the door leaves of the door so as to achieve maximum space savings.

In a further preferred embodiment of the invention, it is provided to arrange a first light module in the door guide groove, which is aligned with a cabin interior and thus can be recognized from the direction of the cabin interior. Further, a second light module is arranged in the same Türführungsnut on the opposite vertical wall and aligned in the opposite direction so that it radiates out of the cabin interior and can be perceived when entering the elevator car. The arrangement of the two light modules in the door guide groove has the advantage that a light emitted by the light module can be perceived both when entering the elevator car and when getting out of the elevator car. By mounting in each case a vertical wall pollution and thus impairment of perception is excluded.

In an advantageous embodiment of the invention, it is provided to form the threshold profile with an inner and an outer Türführungsnut. This embodiment is used in particular when the car door and / or the shaft door are formed in two parts. It is advantageous if the first light module in the outer Türführungsnut and the second light module are arranged in the inner Türführungsnut. Thus, the first light module from the cabin interior is visible and can be perceived when getting out of the elevator car. The second light module is visible when entering the elevator car. The attachment of the first and second light module in the inner and outer Türführungsnut has the advantage that a stability of the threshold profile is maintained and an influence of the light emitted by the light modules due to the spatial spacing is reduced, so that the two light modules can be controlled separately and thus selectively on and off depending on the elevator installation state. For example, it is not necessary for an empty elevator car to turn on the directed into the cabin interior light module, because there are no people in the cabin interior.

Alternatively, it is possible to arrange the first light module and the second light module in adjacent walls of a threshold profile. As a result, a common voltage supply of the two light modules is possible, whereby the installation and cost is reduced.

In a further preferred embodiment of the invention, it is provided to control the light module such that it emits a light signal as a function of an elevator car position. As a result, for example, a danger situation can be indicated by a level difference between the floor and the elevator car. It is also possible to subdivide the light module into subregions and to switch the subregions alternately on or off. The light module can be over the entire length in the bottom area and / or in the lateral area of the elevator car and / or the Floor extend. However, it may also be arranged only at one or more positions in the floor area or in the lateral area of the elevator car and / or the floor.

Advantageously, the light module emits a light signal in the white waveband. White light is particularly noticeable. Furthermore, it is advantageous if the light signal output by the light module is emitted as a function of a car door position and / or a shaft door position. For example, it is not necessary to activate the light modules when the doors are closed, as a light module integrated in the threshold profile is then no longer perceptible. Another possibility is to permanently switch on the light module when opening the respective doors, without taking into account the elevator position. This has the advantage that the users of the elevator are generally informed of the gap between elevator car and floor, regardless of whether there is a difference in level between floor and elevator car or not.

It is particularly advantageous to form the light module from LEDs which are arranged, for example, on a printed circuit board. These LEDs are preferably covered with a lens, which preferably consists of a scratch-resistant material. This makes it possible to form the light module very compact and self-contained, so that it can be inserted even in very small grooves of threshold profiles, for example, smaller than 1.5 cm. Through the diffuser, the light emitted by the LEDs is distributed evenly, so that the light module acts like a light band. The use of LEDs ensures low power consumption. Due to the scratch-resistant material of the lens, the light module is protected against contamination and damage. The lifetime of LED is also much longer than other conventional light sources.

Further, it is possible to integrate into the light module organic, light-emitting materials that begin to glow when a power supply. Such OLEDs require no backlight and are flexible. In addition, they consume very little energy, with the emitted light being clearly visible from every angle. OLEDs can also be implemented over a large area so that a light module according to the invention can be equipped with OLEDs over its entire length. It is also possible to use other plastics, so-called smart materials, which emit a light.

Another way of making the light module light up is to integrate an optical waveguide into the light module. On one end face of the optical waveguide, a light is coupled in by means of a good light source, for example a laser or LED. Although the optical waveguide is basically provided for guiding light in its axial extent, even with unchanged optical waveguides which are not sheathed, a light is visible on its longitudinal side when light is coupled in at the end face. Further, it is possible to change the optical waveguide on a longitudinal side so that light can escape on the longitudinal side of the optical waveguide. For this purpose, on the corresponding longitudinal side of the optical waveguide, the refractive index must be changed so that there occurs no total reflection of the guided light waves, but the light waves can emerge at the locations of the optical waveguide. Small irregularities in the surface of the inner optical waveguide change the refractive index, so that the light can escape at these points. The use of optical waveguides is advantageous because the coupling of the light in the optical waveguide can be provided at positions in the elevator car or on the floor at which sufficient space is available and also the power supply is unproblematic.

In an advantageous embodiment of the invention, a cleaning element in the region of the light module is on the car door and / or the shaft door arranged, which is moved when opening or closing the car door and / or shaft door cleaning over the light module. This cleaning element may be formed, for example, as a rubber lip or as a brush. By moving over the light module when opening or closing dirt deposits on the light modules are reliably removed.

It is particularly advantageous if the light module changes its light color as a function of an elevator installation state. For this purpose, it is necessary to integrate light-emitting diodes or materials into the light module, which can emit different colors or arrange a plurality of light-emitting diodes or materials which emit different colors in each case. Another possibility for increasing the warning effect of the light module is to change a display duration of the light module as a function of a dangerous situation or warning situation. It is thus possible, for example, for a level difference between the floor and the elevator car to clock the light module with a pulse, so that a pulsating light is radiated, whereby the perceptibility is increased. On the other hand, a permanently activated light is used as an indication of a gap. The permanently activated light indicates to the passenger that there is no danger from a step. For grading the degree of warning function can be provided to flash the light module at great risk, for example at a particularly high level between floor level and elevator car level, at short intervals. If there is less danger, the interval between switching on and off can be extended.

In an inventive method for displaying a gap between an elevator car and a floor in an elevator system, it is provided that the car door or landing door is associated with a threshold profile. At least one light module is arranged in a groove in the threshold profile of the floor and / or the elevator car and emits a light in the visible wave range.

Fig. 1

eine schematische Darstellung einer Aufzugsanlage;

Fig. 2

eine vergrösserte Schnittdarstellung des Ausschnitts A gemäss Fig. 1;

Fig. 3

eine schematische Darstellung eines Schwellenprofils gemäss der vorliegenden Erfindung;

Fig. 4

eine alternative Ausgestaltung eines Schwellenprofils gemäss der vorliegenden Erfindung;

Fig. 5a

eine vergrösserte schematische Darstellung des Ausschnitts B aus Fig. 4;

Fig. 5b

eine vergrösserte Darstellung des Ausschnitts C gemäss Fig. 3;

Fig. 6

eine schematische Darstellung einer Anordnung des Lichtmoduls in der Aufzugskabine oder auf dem Stockwerk.

Fig. 7

eine schematische Darstellung eines Lichtmoduls gemäss der vorliegenden Erfindung;

The invention will be explained in more detail by means of exemplary embodiments, which are shown schematically in the drawings. Show it:

Fig. 1

a schematic representation of an elevator system;

Fig. 2

an enlarged sectional view of the section A according to Fig. 1 ;

Fig. 3

a schematic representation of a threshold profile according to the present invention;

Fig. 4

an alternative embodiment of a threshold profile according to the present invention;

Fig. 5a

an enlarged schematic representation of the section B from Fig. 4 ;

Fig. 5b

an enlarged view of the section C according to Fig. 3 ;

Fig. 6

a schematic representation of an arrangement of the light module in the elevator car or on the floor.

Fig. 7

a schematic representation of a light module according to the present invention;

A schematic structure of an elevator installation 10 is shown in FIG Fig. 1 shown. The elevator installation 10 comprises an elevator cage 12, which is moved back and forth in a lift shaft 11 between floors S1 and S2. The elevator car 12 is attached to an elevator rope 24, which is actuated by a motor (not shown). The elevator car 12 is from Cabin doors 14 closed. The elevator shaft 11 is closed in the floors S1 and S2 of shaft doors 13. In the floors S1 and S2 are located in front of the shaft doors 13 elevator antechambers 25, 26. A bottom portion of a floor S1, S2 is designated by the reference numeral 15. A floor area of the elevator car 12 is designated by the reference numeral 23.

In the embodiment described here, cab doors 14 and shaft doors 13 are used, each consisting of 2 door leaves ( Fig. 6 ), of which a first door leaf 13a, 14a covers a first door area and a second door leaf 13b, 14b covers a second door area of the elevator car 12 or the floor S1, S2. Likewise, the shaft door 13 is formed in two parts. The door leaves 14a, 14b, 13a, 13b of the car door 14 and the shaft door 13 are each guided in a threshold profile 16. The threshold profile 16 is arranged in the floor area 15 of the respective floor S1 or S2. The threshold profile 16 in the elevator car 12 is arranged in the floor area 23 of the elevator car 12. Basically, the threshold profiles 16 are the same for the shaft door 13 and the car door 14.

The threshold profile 16 of the shaft door 13 has an outer Türführungsnut 17 and an inner Türführungsnut 18. In this case, the outer Türführungsnut 17 from the perspective of an elevator vestibule 25, 26 located furthest in the direction of the elevator car 12 and the inner Türführungsnut is further in the elevator lobby 25, 26. The door guide grooves are, for example, 1.4 cm wide.

The inner Türführungsnut 18 in the threshold profile 16 of the elevator car 12 is further into the cabin interior space 27 as the outer Türführungsnut 17 of the threshold profile 16 of the elevator car 12th

The threshold profile 16 has a groove 19, which is arranged adjacent to the inner and outer door guide grooves 17, 18. This groove 19 is preferably smaller dimensions than the door guide grooves 17, 18. According to the invention, it is provided to integrate a light module 20 into the groove 19, which extends between the door guide grooves 17 and 18. In Fig. 2 It can clearly be seen that the door leaves 14a, 14b of the car door 14 and the door leaves 13a, 13b the shaft door 13 are moved over the respective light module 20 in the threshold profiles 16 of the elevator car 12 and the floor S2 and thus cause a cleaning effect on the light modules 20. The space between the door leaves 13b and 14a is very limited and allows the installation of no mechanical element between the two door leaves.

An enlarged view of a threshold profile 16 is shown in FIG Fig. 3 in particular for a two-part cabin door 14. The outer door guide groove 17 is arranged on the outermost edge of the elevator car 12. Between the outer Türführungsnut 17 and the inner Türführungsnut 18, the groove 19 is arranged, in which the light module 20 is received. The movement of a schematically indicated door leaf 14a of the car door 14 in the outer door guide groove 17 is in the Fig. 3 represented by the arrows.

In an alternative embodiment according to Fig. 4 is the light module 21, 22 arranged in a vertical wall of the Türführungsnut 17, 18. There is also shown a threshold profile 16 which is used in an elevator car 12. In the outer door guide groove 17, a first light module 21 is integrated, which is arranged on the wall, which is aligned in the cabin interior 27. In the inner Türführungsnut 18, a second light module 22 is disposed on the vertical wall, which is visible when entering the elevator car 12. The groove 19 arranged between the inner and outer door guide grooves 17, 18 is open in this embodiment, so that possible dirt residues in the groove 19 can be accommodated without tilting between the door leaves 14a, 14b of the car door 14 and the threshold profile 16.

The inventive design of a threshold profile 16 with a light module 20, 21, 22 is in the Fig. 5a and 5b shown enlarged. This shows the Fig. 5a the enlarged section B off Fig. 4 , The Fig. 5b shows the enlarged section C from Fig. 3 ,

That in the Fig. 5a shown light module 22 is positively received in the threshold profile 16 and arranged in a vertical wall. The door leaf 14b of the car door 14 is equipped with a cleaning element 28, which is moved when moving the car door 14 via the light module 22 and thus causes a cleaning effect.

In the Fig. 5b a cleaning element 29 is arranged on the door leaf 14 a of the car door 14, which moves when moving the car door 14 via the groove 19 and the light module 20 integrated therein, and thus cleans the light module 20.

As an alternative to the arrangement of the light module 20, 21, 22 in the threshold profile 16 in the respective floor area 23, 15 of the car door 14 or the shaft door 13, it is also possible that the light module 20, 21, 22 in a lateral region 31 of the elevator car 12 or the Floor S1, S2 to order. This arrangement is in Fig. 6 shown. In this case, the light module 20, 21, 22 can be guided in the lateral region 31 either in a threshold profile 16 that extends into this lateral region 31. However, the light module 20, 21, 22 can also be arranged in the lateral area 31 without the use of a threshold profile 16 in the elevator car 12 or the floor S1, S2. In the arrangement in a laterally arranged threshold profile 16, the light module 21, 22 by the Einscheiben the respective car door 14 or shaft door 13 in the lateral door guide grooves 17, 18 cleaned.

The control of the light module 20, 21, 22 is not explained here. It is taken over by a lift control, not shown.

With the embodiment according to the invention, it is possible to point to a gap 30 between a floor S1, S2 and the elevator car 12. The light modules 20, 21, 22 are arranged so that they can be integrated into the threshold profile 16 without great constructive effort. The integration of the light module 20, 21, 22 in the threshold profile 16 has the advantage that a cleaning effect is effected by a sliding past the car door 14 or shaft door 13 via the respective light module 20, 21, 22, so that the warning function of the light module 20, 21 , 22 is not affected by contamination.

The light modules can be integrated directly into a groove in the threshold profile, which groove has smaller dimensions than the Türführungsnute. Space is thus saved and no additional mechanical element is necessary for installation. Above all, no space is needed for the light module on the threshold profile (see Fig. 2 ).

Fig. 7 shows a schematic representation of a light module according to the present invention. At the outer ends of the light module carrier, a cylindrical LED 40 is preferably attached, which emits light into the channel interior. Through the tubular lens, which lies in the channel of the light module carrier, the light of the LED's is evenly distributed and irradiated to the outside. The lens as well as the LEDs are protected by a transparent cover 42. The holder 41 holds the LED and also performs a cooling function.

Claims (10)

1. Elevator installation with an elevator car (12) arranged in an elevator hoistway (11) to be movable between storeys (S1, S2), wherein the elevator car (12) has a car door (14) or the elevator hoistway (11) has on the storeys (S1, S2) a hoistway door (13), wherein a sill section (16) is associated with the car door (14) or the hoistway door (13), wherein at least one light module (20, 21, 22) is arranged in the sill section (16) and wherein the light module (20, 21, 22) is arranged in a groove (19) in the sill section (16), characterised in that the light module (20, 21, 22) is arranged in space-saving manner in a door guide groove (17, 18, 19) on the upper side of the sill section (16).
2. Elevator installation according to Claim 1, characterised in that the light module (20) is arranged between two door guide grooves (17, 18).
3. Elevator installation according to one of claims 1 and 2, characterised in that a first light module (21) in the door guide groove (17, 18) is oriented in the direction of a car interior (27) and a second light module (22) in the door guide groove (17, 18) is oriented in the opposite direction.
4. Elevator installation according to one of claims 1 to 3, characterised in that the light module (20, 21, 22) radiates light in the white colour range.
5. Elevator installation according to one of claims 1 to 4, characterised in that the light module (20, 21, 22) emits a light signal depending on a position of the car door (14) or of the hoistway door (13).
6. Elevator installation according to one of claims 1 to 5, characterised in that the light module (20, 21, 22) contains LEDs (40) that are arranged under a diffusing disk, the diffusing disk preferably consisting of a scratch-resistant material.
7. Elevator installation according to one of claims 1 to 6, characterised in that the light module (20, 21, 22) contains organic light-emitting materials which, when supplied with current, start to glow.
8. Elevator installation according to one of claims 1 to 7, characterised in that the light module (20, 21, 22) contains an optical waveguide into which light can be coupled and which emits the light over its axial length in the direction of the elevator car (12) or of the storey (S1, S2).
9. Elevator installation according to one of claims 1 to 8, characterised in that the car door (14) or hoistway door (13) has a cleaning element (28, 29) which, on opening or closing of the car door (14) or hoistway door (13), moves in cleaning manner over the light module (20, 21, 22).
10. Method of indicating a gap (30) between an elevator car (12) and a storey (S1, S2) in an elevator installation (10), wherein the elevator car (12) is moved in an elevator hoistway (11) between storeys (S1, S2) and a sill section (16) is associated with a car door (14) or a hoistway door (13), wherein at least one light module (20, 21, 22) that emits light in the visible wavelength range is arranged in the sill section (16) and wherein the light module (20, 21, 22) is arranged in a groove (19) in the sill section (16), characterised in that the light module (20, 21, 22) is arranged in space-saving manner in a door guide groove (17, 18, 19) on the upper side of the sill section (16).

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