WO2014191380A1

WO2014191380A1 - Elevator shaft with reduced shaft pit or reduced shaft top

Info

Publication number: WO2014191380A1
Application number: PCT/EP2014/060889
Authority: WO
Inventors: Gilles Trottmann
Original assignee: Inventio Ag
Priority date: 2013-05-28
Filing date: 2014-05-27
Publication date: 2014-12-04
Also published as: TR201908482T4; CN105307964B; CN105307964A; EP3003944B1; ES2721022T3; EP3003944A1

Abstract

The invention relates to an elevator system (2) with a shaft door (4.1, 4.2, 4.3) arranged on a floor (8.1, 8.2, 8.3); an elevator car (10); a door latch (32) arranged on the shaft door (4.1, 4.2, 4.3) for locking the shaft door (4.1, 4.2, 4.3), wherein the door latch (32) can be brought from a locked position into an unlocked position in order to unlock the shaft door (4.1, 4.2, 4.3) from a shaft door (4.1, 4.2, 4.3) face facing the floor (8.1, 8.2, 8.3) using a key; a blocking element (34) which prevents the shaft door (4.1, 4.2, 4.3) from being opened in a blocking position of the blocking element; and an actuator (30) which acts on the blocking element, said actuator (30) being designed such that the blocking position of the blocking element (34) is released exclusively when the elevator car (10) is arranged within an emergency rescue zone paired with the shaft door (4.1, 4.2, 4.3).

Description

Aufougsscliac.it with engraved SchachtgrakeJ ^^

description

The invention relates to an elevator installation with an elevator shaft which comprises a shaft pit or a shaft head with a minimum height or no shaft pit or shaft head.

Elevator systems usually include pivotable shaft doors. Such shaft doors can be unlocked by means of a key from the floor independently of a position of the elevator car, so that, for example, a service technician can climb into the shaft pit or onto the elevator car for maintenance of the elevator system. Regulations or standards stipulate in such a case that the elevator shaft must have a shelter in the shaft head or in the pit in which shelter the elevator car can not be moved. In this way, the service technician located in the elevator shaft outside the elevator car can be protected even during a process of the elevator car. Accordingly, the shaft pit or the shaft head must have a minimum height.

However, there is an increasing demand to further reduce the pit trench height. Patent specification EP 1604934 shows by way of example an elevator system with a control box arranged on an elevator car. A maintenance technician located on the elevator car opens this control box, which is a

Extending effected by the elevator car locking means causes. In their extended state, the blocking means prevent the elevator car from penetrating into the shelter above the elevator car during the maintenance work.

The disadvantage here is that the technical realization of such a solution requires a complicated mechanism.

It is therefore an object of the invention to provide a Aufzugsaniage, in spite of reduced height of the shaft head and the pit a necessary shelter can be guaranteed at any time. The object is achieved by an elevator installation having a shaft door arranged on a floor, an elevator car, a door hinge arranged on the shaft door for locking the shaft door, which door latch for unlocking the shaft door from a side of the shaft door facing the floor by means of a key Locked position can be brought into an unlocked position, a blocking element which prevents an opening of the shaft door in its blocking position, and an actuator acting on the blocking element, wherein the actuator is designed such that the blocking position of the blocking element is canceled exclusively if the elevator car within one of Shaft door assigned emergency release zone is arranged.

Persons who perform works by way of example on the installed elevator installation are possibly endangered by movable parts of the elevator installation, in particular the elevator car. Accordingly, in the elevator installation according to current regulations, shelters are arranged in accommodation areas intended for persons. The moving parts of the elevator system can not penetrate into these slot spaces. In this way, it is possible to prevent a service technician located, for example, in the shaft pit or in the shaft head from being injured by moving the elevator cage in the elevator shaft. The service technician can go into the protective portrait when the elevator car moves in the direction of its lowest or highest possible position in the elevator shaft.

Increasingly, however, there is a requirement that elevator shafts have the smallest possible dimensions. Accordingly, the shaft pit and / or the shaft head of the respective elevator shaft can be dimensioned so small that outside, ie below or above the elevator car, no complete, according to the current regulations to be provided protective space can be arranged.

It was therefore attempted to change the design of the elevator system so that such a shelter or shelters in the elevator shaft outside the elevator car are not necessary. This is achieved by the shaft doors are designed so that direct access from the floor into the elevator shaft is impossible. The landing door is therefore exclusively apparent when the elevator car so on the Shaft door is arranged that the direct access from the floor is blocked in the Aufziigsschacht. If the elevator car is arranged in such a position, the blocking control of the blocking element is released, that is, the blocking element assumes its release position. In addition to door openings of the landing door in normal operation, which are usually effected by a door drive, the shaft door remains unlockable by means of the key, for example, to emergency persons in case of faults in the elevator system from the elevator car can. If, however, the elevator car is located at a different position, ie not within the emergency release zone, the shaft door is under no circumstances apparent, regardless of the locked position or unlocked position of the door bolt.

The actuator is thus designed such that the blocking position of the blocking element is exclusively canceled if the elevator car within the

Shaft door assigned emergency release zone is arranged. This means that the actuator for canceling the blocking position is provided exclusively when the elevator car is arranged within this emergency release zone.

The elevator car is considered to be located in the emergency exemption zone of the landing door when

Persons with the shaft door open access into the Aufziigsschacht is completely obstructed by arranged on this shaft door elevator car. According to the present description, persons who are located in or enter an elevator shaft of the elevator installation are to be understood as persons who are outside the interior of the elevator cage in the attachment shaft.

A development of the elevator system has a plurality of substantially stacked shaft doors, wherein a lowermost of the shaft doors and / or a top of the shaft doors each have the door latch and the blocking element. By arranging the inventive door bolt and the blocking element according to the invention on the lowermost shaft door, it can be obscured that a person can reach the shaft pit through the lowermost shaft door. An additional or alternative arrangement of the inventive door bolt and the blocking element according to the invention on the uppermost shaft door can make it impossible for a person to reach the elevator car through the uppermost shaft door. Such a danger to these persons can be prevented if the shaft head or the Shaft pit to have small dimensions for the arrangement of a shelter outside the elevator car. In addition, at all shaft doors of the elevator installation, such a door latch and such a blocking element can be arranged in order to prevent the direct access of any floor into the elevator shaft through one of the shaft doors.

In a further development of the elevator installation, the elevator car has a cabin floor which is at least partly designed as a floor flap and / or a canopy partially designed as a roof flap, wherein a shelter for service personnel located in a shaft head or in a shaft pit of the elevator installation is open when the roof or floor flap is open extending the Aufziigskabine. It is advantageous that service personnel can still carry out maintenance work in the shaft pit or in the shaft head despite a lack of direct accessibility to the shaft pit or the shaft head through the shaft door. When the floor or roof flap is open, the shelter is thus at least partially arranged in the elevator car. This means that such persons can be protected in the elevator shaft of the Aiifzugsanlage, in particular in the shaft head or in the pit, invaded persons.

In a further development of the elevator installation, the actuator is arranged on the elevator car. By means of such an arrangement, a probability of failure of the Aiifzugsanlage can be reduced by a malfunctioning actuator, because the actuator directly, preferably from immediate local proximity, can act on the blocking element, when the elevator car is located within the shaft door associated emergency release zone.

In a development of the elevator system, the blocking element is designed such that the blocking element blocks the door bolt in its locked position in its locked position. Alternatively, the shaft door of the elevator installation may have a door leaf and the blocking element may be designed such that the blocking element blocks the door leaf in its closed position in its blocking position. In this way, it can be realized that the blocking element in its blocking position prevents an opening of the shaft door, In a development of the elevator installation, the actuator is a guide curve or an electrical switching means. Alternatively, the actuator can be a position detection unit for detecting a position of the elevator cage in the elevator shaft of the elevator installation. By means of such an actuator, the blocking element can be influenced.

In the following the invention will be explained in more detail with reference to figures. Show it:

Figure 1: a multi-storey elevator system;

Figure 2: a arranged in an emergency relief zone elevator car;

FIG. 3A: a detail of a shaft door, on which shaft door a blocking element shown in its blocking position according to a first embodiment variant is arranged;

Figure 3B: arranged on the shaft door blocking element of Figure 3A in his

Release position;

FIG. 4A shows a detail of a shaft door on which shaft door a blocking element shown in its blocking position is arranged according to a second embodiment variant;

Figure 4B: arranged on the shaft door blocking element of Figure 4A in his

Release position; and

Figure 5: arranged on a lowermost shaft door of the elevator shaft Aufziigskabine.

FIG. 1 shows an elevator installation 2 with an elevator car 10 that can be moved in an elevator shaft 3. The elevator shaft 3 has a shaft head 5 at its upper end and a shaft shaft 7 at its lower end. The shaft head 5 and / or the shaft pit 7 can be sized so small that a protective space 16 to be provided can not be arranged completely outside the elevator car 10. Such a shelter 16 forms according to the usual regulations sufficient space for a person located in the elevator shaft 3 person when the Aufziigskabine 10 is disposed in its lowest or highest possible position in the elevator shaft 3. The elevator shaft 3 connects at least two floors 8.1, 8.2, 8.3. At each floor 8.1, 8.2, 8.3 a landing door 4.1, 4.2, 4.3 is arranged to close the elevator shaft 3 can.

Figure 2 shows an elevator car 10, which is arranged on a floor 8. The elevator car 10 has a cabin floor 1 1. The floor 8 has a floor factory floor 9 up. On the floor 8 a door leaf 6 comprehensive shaft door 4 is arranged. At the landing door 4, a door latch 32 is arranged to lock the landing door 4. In its locked position, the door latch 32 prevents opening of the

Shaft door 4. This means that the door leaf 6 can not be moved out of its closed position when the shaft door 4 is locked.

The shaft door 4 is usually apparent by means of a door drive, not shown, when the elevator car 10 is arranged on the shaft door 4. It is irrelevant whether the door drive is arranged on the elevator car 10 or on the shaft door 4. In the case of imminent opening of the shaft door 4 by means of the door drive, the door drive is coupled to the shaft door 4 in such a way that the door latch 32 can be brought out of its locked position into its unlocked position by means of the door drive. If the door bolt 32 is then transferred to its unlocked position, the shaft door 4 can be at least partially opened by an opening movement of the door leaf 6.

It is possible that the shaft door 4 must be opened when the door drive itself is not actuated for unlocking and opening the landing door 4. Cause can be a malfunction of the elevator system in case of power failure. Accordingly, an emergency release of persons located in the elevator car 10 may be necessary. For this purpose, the door latch 32 can be brought from its locked position into its unlocked position by means of a key from a side of the shaft door 4 facing the floor 8. The shaft door 4 may therefore have on the floor side a key opening 37, through which keyhole opening 37 of the door latch 32 can be actuated by means of the key. Such conclusions! can be designed as 1 n nthere i kantsc h I ü se I.

The emergency exemption of persons from the Au fab cabin 10 is only permitted if the elevator car 10 is disposed within a shaft door 4 associated emergency exemption zone. The elevator car 10 is located in the emergency exemption zone of the shaft door 4, when persons can not get out of the elevator car 10 into the elevator shaft 3 when the shaft door 4 is open. An emergency rescue from an elevator car arranged outside the emergency relief zone could, for example, lead to a fall into the elevator shaft. Accordingly, such a N otbefre iun gs / .one by maximum permissible deviations Niveauabwei- SUMAX _"SOMAX defined between the cab floor 1 1 and the landing door 4 associated landing floor. 9 In this case, the maximum downwardly permissible level deviation SUMAX, with which the cabin floor 1 1 below the floor 9 floor is permissible arrange, from a maximum permissible upward level deviation SOMAX, with the cabin floor 1 1 above the floor 9 floor is permissible be different.

Accordingly, the elevator car 10 is considered to be located within the emergency exemption zone when the car floor 1 1 of the elevator car 10 to floor level 9 has a direction-related level deviation S, which level deviation S is less than or equal to the maximum permissible level deviation SUMAX. SOMAX is in this direction.

An emergency relief length 1 1 is achieved by adding the maximum downwards permitted level deviation SUMAX with the maximum upward level deviation

SOMAX formed. In order to increase this emergency relief length H at the shaft door 4 along the travel path of the elevator car 1 0, ie to enlarge the emergency relief zone, a safety, for example below the cabin floor 1 1, a safety apron 14 can be attached to the elevator car 10.

FIGS. 3A, 3B, 4A, 4B show a detail of a shaft door 4 described according to FIG. 2, on which a blocking element 34 in a first embodiment variant (FIGS. 3A, 3B) or a blocking element 34 in a second embodiment variant (FIGS. 3A, 3B). can be arranged. FIGS. 3A and 4A show the respective blocking element 34 in its blocking position, with FIGS. 3B and 4B respectively showing the corresponding blocking element 34 in its release position. The blocking element 34 may comprise a contact roller 42 and / or a rear part element, preferably a return spring 40 (FIGS. 3A, 3B). The blocking element 34 can be designed, for example, as a pivot bolt (FIGS. 4A, 4B) or as a locking bolt (FIGS. 3A, 3B).

The shaft door 4 has a door leaf 6 shown in its closed position. At the landing door 4, a door latch 32 is arranged in addition to the B 34 lockierelement. Of the

Door latch 32 is formed by way of example about a pivot axis 33 pivotally. In its locked position, the door latch 32 engages in a latch stop 36, which prevents is changed that the shaft door 4 can be opened, so the door panel 6 can perform an opening movement O. By way of example, the door latch 32 can be arranged on the door leaf 6 and the latch stop 36 on a door frame of the landing door 4 or vice versa. If the door bolt 32 is transferred by way of example by means of a key from a floor-facing side of the shaft door 4 from its locked position (shown in FIGS. 3A, 3B, 4B) into its unlocked position (shown in FIG. 4A), the door bolt 32 or the bolt stop prevents it 36, the opening movement O of the door leaf 6 not.

The blocking element 34 is designed and arranged such that the blocking element

34 in its blocking position prevents an opening movement O of the door leaf 6 and thus an opening of the shaft door 4, regardless of the position of the door bolt 32.

The blocking element 34 can be transferred from its blocking position into its release position by means of an actuator 30, for example by means of a movement B of the blocking element 34. The actuator 30 can be designed, for example, as a mechanically acting guide curve (FIGS. 3A, 3B, 4A, 4B) or as an electrical switching device , Such an actuator 30 is preferably arranged on the elevator car. Likewise, the actuator may be formed by a position detection unit for detecting a position of the elevator car in the elevator shaft.

The actuator 30 acts on the blocking element 34 along the region in which the direction-related level deviation S according to FIG. 2 is less than or equal to the maximum permissible level deviations S _UMA x, SQMAX. The guide curve 30 shown arranged on the elevator car accordingly has a length corresponding to the ^" emergency rescue length II (Figure 2), along which length the guide curve 30 acts on the blocking element 34. According to this effect, the blocking element 34 is in its release position when the elevator car in the emergency exemption zone of the landing door 4. The blocking element 34, however, is in its blocking position when the elevator car is not located in the emergency exemption zone of the hoistway door 4. The return element 40 causes the blocking element 34 to assume its blocking position as soon as the elevator car is located outside the emergency exemption zone Alternatively, the blocking element 34 can be transferred from its release position into its blocking position and vice versa by means of the actuator 30. The blocking element 34 thus has the effect that the express door 4 is in no case apparent when the elevator cage is arranged outside the emergency release zone of this shaft door 4. In this way it is impossible for persons to pass directly through this landing door 4 into the elevator shaft.

The ontaktroile 42 of the blocking element 34 allows the mechanical interaction between the guide cam 30 and the blocking element 34. By means of the contact roller 42, the movement B of the blocking element 34 and a holding of the blocking element 34 can be realized in its release position by way of example.

The blocking member 34 shown in Figures 3A, 3B acts on the door latch 32 such that the door latch 32 is locked in its locked position when the elevator car is not located within the emergency release zone. For this purpose, the door latch 32 has a locking means 38. The blocking means 38 prevents blocking element 34, which is located in its blocking position shown in FIG. 3A, that the door latch 32 can be moved from its locked position into its unlocked position. The corresponding movement of the door bolt 32, for example, the pivoting movement about its pivot axis 33, is prevented.

If the blocking element 34 according to FIG. 3B is in its release position, the door latch 32 is not blocked by the blocking element 34 in its locked position. Accordingly, the door latch 32 may be disposed in its locked or unlocked position. In the arrangement of the door bolt 32 in its unlocked position, the shaft door 4 is obviously, so the door leaf 6 from its closed position by means of the opening movement O actuated.

The blocking element 34 shown in Figures 4A, 4B acts on the door leaf 6, so that the door leaf 6 is locked in its closed position by means of the blocking element 34, when the elevator car is not disposed within the emergency relief zone. In an in blocking position blocking element 34, the shaft door 6 is not apparent regardless of the position of the door bolt 32. If the blocking element 34 is arranged in its release position, the position of the door bolt 32 determines whether the shaft door 4 can be opened. If the door latch 32 is in its locked position, the opening movement O of the door leaf 6 is not possible. Is located the door latch 32 in its unlocked position, the opening movement O of the door leaf 6 is executable. As already described within the description, the door latch 32 can be brought by means of the door drive or by means of the key from its locked position to its unlocked position.

By way of example, the blocking element 34 is held in its blocking position by means of gravitational force. The actuator 30 interacts with the blocking element 34 arranged in the emergency release zone in such a way that the blocking element 34 is transferred against its gravitational force into its release position, preferably pivoted about a pivot axis 43 assigned to the blocking element 34 and arranged on the shaft door 4.

FIG. 5 shows an elevator shaft 3 of an elevator installation 2. The elevator shaft 3 comprises a shaft pit 7 and a shaft head 5. In the elevator shaft 3, an elevator cage 10 is at a bottom of the shaft doors 4. 1, 4.2, 4.3 and thus substantially directly over the shaft pit 7 is arranged. The elevator car 10 has a cabin floor 1 1 with a bottom flap 12. The bottom flap 12 is shown in its open position. The bottom flap 12 in its closed position has the function of a conventional cabin floor 1 1. At the bottom landing door 4.1 both the door latch and the blocking element according to the description of Figures 3A, 3B, 4A, 4B is arranged. The actuator 30 acting on the blocking element is arranged on the elevator car 10 by way of example.

The dimensions of the shaft pit 7 shown are so small, in particular with regard to their height, that no shelter 16 for persons outside the elevator car 10 can be arranged in the shaft pit 7. In order to allow authorized persons such as service personnel despite the described effect of the blocking element to perform work (maintenance or cleaning) in the pit 7, the pit 7 with open bottom flap 12 from the elevator car 10 can be reached or entered. By way of example, this bottom flap 12 is only apparent or unlockable when the elevator car 10 is located directly on the shaft pit 7 or insignificantly above it, so that no dangerous crash from the elevator car 10 is risked in open pit bottom 12 in the pit trench 7. The shelter 16 may extend into the elevator car 10 when the bottom flap 12 is open. Accordingly, the elevator installation is designed in such a way that it is ensured that the person previously in the shaft pit 7 when the bottom flap 12 is open must be located in the interior of the elevator car 10 in order to close the bottom flap 12. By way of example, a Bodenk iappe 12 can be provided for this purpose, which is entriegeibar only from the cabin interior, wherein the elevator car 10 in the elevator shaft 3 is movable only when the bottom flap 12 is locked.

In addition or as an alternative to an arrangement of the described blocking element on the lowermost shaft door 4.1, in each case such a blocking element can be arranged on at least one of the shaft doors 4.2, 4.3 arranged above it.

With such reduced dimensions of the shaft pit 7, the shaft head 5 of the elevator shaft 3 can be sized sufficiently large that a shelter 16 outside the elevator car 10 in the shaft head 5 can be arranged. Accordingly, service personnel may pass through one of the open landing doors 4.1, 4.2, 4.3 to the elevator car 10, but at the same time ensure that the service personnel can not get below the elevator car 10 through one of the open shaft doors 4.1, 4.2, 4.3 in the pit 7. Accordingly, by way of example, in addition to the arrangement of the door bolt and the blocking element at the bottom landing door 4.1 all other shaft doors 4.2, 4.3 except a top of the shaft doors 4.1, 4.2, 4.3, each with such a door latch and each such blocking element according to the description of Figures 3A, 3B, 4A, 4B or be provided with an alternative safety devices. By means of such an alternative safety device, it is to be ensured that it is impossible to open a central shaft door 4.2 arranged between the uppermost shaft door 4.3 and the lowermost shaft door 4. 1 if the elevator car 10 is not arranged in the emergency rescue zone of this central shaft door 4.2.

With reduced dimensions of both the shaft pit 7 and the shaft head 5 can be arranged on each of the shaft doors 4. 1, 4.2, 4.3 each such a door latch and each such blocking element.

As an alternative to the illustration shown, it is possible for the arrangement of protective men 16 outside the elevator car 10, the pit 7 sized large enough and the shaft head 5 is too small. Correspondingly, by way of example, all but the lowermost of the shaft doors 4.1, 4.2, 4.3 can be provided with one such door latch and one respective blocking element according to the description of FIGS. 3A, 3B, 4A, 4B. Thus, service personnel can by the lowest of the

Manhole doors 4.1 enter directly into the pit 7, However, it is prevented that the service personnel through one of the shaft doors 4.1, 4.2, 4.3 can get directly to the elevator car 10. According to the bottom flap 12 shown, the elevator car 10 may have a roof flap for the maintenance of the shaft head 5.

Claims

claims

1 . Elevator system (2) with

- a plurality of substantially stacked shaft doors (4.1, 4.2, 4.3),

an elevator car (10),

- Wherein a door latch (32) for locking the respective shaft door (4. 1, 4.2, 4.3) is arranged on a lowermost and / or a topmost of the shaft doors (4.1, 4.2, 4.3), which door latch (32) for unlocking the shaft door (4. 1, 4.2, 4.3) of a one floor (8.1, 8.2, 8.3) facing side of the shaft door (4.1, 4.2, 4.3) can be brought by means of a key from a locked position into an unlocked position,

- A blocking element (34) which prevents in its blocking position an opening of the door bolt (32) provided shaft door (4.1, 4.2, 4.3), and

- An actuator (30) acting on the blocking element, wherein the actuator (30) is designed such that the blocking position of the blocking element (34) is exclusively canceled if the elevator car (10) within one of the shaft door provided with the door bolt (32) (4.1, 4.2, 4.3) associated emergency emergency zone is arranged.

2. elevator installation (2) according to claim 1, wherein the elevator car (10) in an arrangement of the door bolt (32) on the bottom landing door (4. 1) at least partially as a bottom flap (12) formed cabin floor (1 1) or a in an arrangement of the door bolt (32) on the top shaft door (4.3) partially designed as a roof flap cabin roof, with a shelter (16) in a shaft head (5) or in a pit (7) of the elevator installation (2) befindliches Service staff with open roof or bottom flap (12) in the elevator car (10) extends.

3. On train system (2) according to one of the preceding claims, wherein the actuator (30) is arranged on the elevator car (10).

4. elevator installation (2) according to any one of the preceding claims, wherein the blocking element (34) is formed such that the blocking member (34) in its blocking position blocking the door latch (32) in its locked position.

5. elevator installation (2) according to one of claims 1 to 3, wherein the shaft door (4. 1, 4.2, 4,3) has a door leaf (6) and the blocking element (34) is designed such that the blocking element (34) in its blocking position blocks the door leaf (6) in its closed position.

6. elevator installation (2) according to one of the preceding claims, wherein the actuator (30) is a guide curve (30) or an electrical switching means,

7. elevator installation (2) according to one of claims 1 to 5, with an elevator shaft (3), wherein the actuator (30) is a Positionserfassiingseinheit for detecting a position of the elevator car (10) in the elevator shaft (3).