EP4038003B1 - Door frame of an elevator system - Google Patents

Description

The invention relates to a door frame with a chamber for accommodating a control unit of an elevator installation.

Elevator installations include an elevator car, which can usually be moved vertically along an elevator shaft. Accordingly, the elevator car can be moved in such a way that it can be arranged on individual shaft doors, so that access from the elevator car to the floor associated with the individual shaft door is realized. The elevator installation also includes a control unit, which is essentially required for controlling the elevator installation, in particular for the mobility of the elevator car. In addition, such a control unit can contain the interfaces and input modules required for servicing the elevator installation and for diagnostics. This control unit is expediently arranged in such a way that the elevator installation or the control unit can be serviced easily. Consequently, it is advantageous to arrange the control unit in a door frame of such a shaft door. Such a door frame is usually formed by a door lintel and a door post formed on the side of the door opening. To accommodate the control unit, one of these two door jambs can form a chamber in its interior, which is delimited by side walls of the door jamb.

EP1518815 shows such a chambered door jamb. The interior of the chamber and thus the control unit can be reached from the floor by means of a flap that can be opened. A further opening of the door post is arranged in such a way that maintenance can be carried out on the control unit from inside the elevator shaft. To maintain the control unit, it is therefore necessary for the service technician to be in front of this opening. This can be achieved by placing the roof of the elevator car immediately below this opening, so that the service technician can carry out this maintenance from the roof of the elevator car.

EP0680921 discloses a door frame according to the preamble of claim 1.

Accordingly, it is disadvantageous that the elevator car must be arranged in the elevator shaft in such a way that the roof of the elevator car can serve as a working platform for maintaining the control unit.

It is therefore the object of the invention to create a door frame which enables improved accessibility of a control unit which can be arranged in the door frame.

The object is achieved by a door frame of an elevator system having an elevator shaft, the door frame forming a chamber for accommodating a control unit, the door frame having a first door frame element delimiting the chamber with a side end running in a straight line, a second door frame element delimiting the chamber with a side end parallel to the Side closure of the first door frame element, and wherein the first door frame element can be fixed to the second door frame element by means of a fastening element extending along the side closures and the fastening element is arranged on the first and second door frame element so that it can be displaced along the side closures, and the fastening element is a tool element for displacing the fastening element from a locked position into a release position, wherein the first door frame element is fixed to the second door frame element in the locked position and can be removed from the second door frame element in the release position.

The invention is based on the finding that accessibility of the mechanism for fixing the door frame elements delimiting the chamber is crucial in order to enable quick and easy maintenance of the control unit. Accordingly, arranging the elevator car on the floor preferably provided with the door frame on the shaft door side, so that an interior space of the elevator car can be accessed from this floor, is a possibility of significantly simplifying maintenance.

A prerequisite for this is, on the one hand, that the first door frame element to be removed for maintenance can be removed when the interior of the elevator car is arranged on the floor so that it can be walked on. On the other hand, it is necessary for this first door frame element to be removed or the opening in the door frame resulting from the removal of the first door frame element to be sufficiently large for maintenance of the control unit.

Accordingly, two door frame elements can be connected to one another by a fastening element. This means that the first door frame element on the second door frame element is fixed by the fastener in its locked position. The fastener can be moved along both side ends by means of the tool so that the lock can be released. The fastening element can expediently be arranged in such a way that the tool can be inserted into an intermediate space in the alignment between the shaft door-side door frame and the elevator car, in particular a door frame of the elevator car, in order to unlock the fastening element to release the door frame element. Due to this released locking, ie the release position of the fastening element, both door frame elements can be moved towards one another. That is, the first door frame member can be removed so that the chamber within the door frame is accessible.

In a further development of the door frame, the first door frame element has a second rectilinear side closure, and the door frame has a second fastening element for fixing the first door frame element to the second or a further door frame element, and the second door frame element has a second side closure or the further door frame element has one side closure and the second fastening element has a tool element for moving the second fastening element from a locked position into a release position, the first door frame element being fixed to the second or further door frame element in the locked position and being removable from the second or further door frame element in the released position.

This means that the removable first door frame element can be fixed by means of the second fastening element on the second side end of the first door frame element on the second door frame element or the further door frame element of the door jamb forming the chamber. The technical features of the first or the second/additional door frame element would therefore be analogous to the technical features described above for fastening the first to the second door frame element. This makes it possible for the first door frame element to be removable when the first and second fastening elements are arranged in their release position.

In a further development of the door frame, the first door frame element has a second side end running in a straight line, and the door frame has a side end running along this second side end associated with the first door frame element Hinge for fixing the first door frame element on the second or a further door frame element and the hinge is designed such that the first door frame element is pivotable on the hinge. Consequently, it is possible for the first door frame element to be able to release the chamber arranged in the door frame when the (first) fastening element is arranged in its release position, in that the first door frame element can be pivoted about the axis of the hinge into an open position.

In a further development of the door frame, the tool element is formed by an elevation or a depression or an opening, in particular by a pin or a hole. By means of a tool element designed as an elevation, for example as a pin, which tool element protrudes outwards from the door post above the level of the door frame element, it is possible for a tool guided parallel to the door frame element delimiting the chamber to be used to transfer the fastening element from its locked position to its release position can be and vice versa. In this way fastening elements can be actuated which are arranged between shaft and car door jambs. By means of a recess or an opening, in particular a hole, the tool can be guided between the side closures of the first and second door frame element arranged next to one another and inserted into the recess or the hole in order to move the fastening element from its locked position to its release position or vice versa .

In a further development of the door frame, the first door frame element has at least one docking element extending along the (first) side end, and the fastening element each has a finger that can be assigned to the at least one docking element, with the docking element(s) and/or the finger(s) being angled in this way or are designed such that the at least one docking element engages behind the finger that can be assigned to the docking element in its locked position of the fastening element in a form-fitting manner in order to prevent the first door frame element from being released from the fastening element and that the form-fitting connection can be canceled by moving the fastening element into its unlocked position, and thus the first door frame element from Fastener is detachable. It is advantageous that in a first position, the locking position, a first finger engages behind the docking element in such a way that the first door frame element is connected to the fastening element in a dimensionally stable manner.

By displacing the fastening element, preferably along the main orientation of the door frame element, the fastening element can be shifted into its unlocked position, so that the first door frame element can be detached from the fastening element. Correspondingly, the first door frame element can preferably be removed or removed from the chamber manually.

In a further development of the door frame, the second door frame element has or have a bevel or bevels along its side end and/or the fastening element for the form-fitting connection of the second door frame element to the fastening element. It is advantageous that the fastening element is arranged in a displaceable manner on the second door frame element, but is nevertheless preferably non-removable. Accordingly, the fastener can be shifted from its locked position to its unlocked position or vice versa without being lost.

In a further development of the door frame, the side closures of the first and second door frame element, which can be connected by the fastening element, face the elevator shaft and the pin protrudes into the elevator shaft. In this way it is possible for the fastening element to be largely hidden from the elevator passenger, that is to say it is arranged facing away from the floor or the interior of the car and the pin of the fastening element can only be operated using the tool. Accordingly, an openability of this chamber arranged in the door frame is not obvious and thus such an unintentional opening of the door frame can be prevented. Despite this advantage, however, it is possible for the chamber of the door frame to be opened by moving the fastening element.

In a further development, the door frame has a door post, which door post is provided for arrangement to the side of the door opening enclosed by the door frame and the door post encompasses the door frame elements. Consequently, it is possible for the control unit that can be placed in the chamber to be arranged in its vertical height in such a way that maintenance can be carried out easily for the service technician, ie for example without necessarily having to carry out maintenance from a ladder.

In a development of the door frame, the side closure assigned to the first door frame element and the side closure assigned to the second door frame element are aligned vertically. The door frame can be opened along a long vertically aligned length by a corresponding vertical alignment of the fastening element. Accordingly, the opening of the door frame for maintenance of the control unit can be made large, which simplifies the maintenance of the control unit.

In a development of the door frame, the first door frame element is formed by a corner element of the door frame. This means that the first door frame element preferably has a bend aligned parallel to its side closure, preferably formed by an angle of 70° to 110°, preferably 90°, for forming the corner element. Such an angling brings about increased stability of the door frame element formed in this way, so that the first door frame element does not have to have any additional reinforcements or reinforcing elements.

Figur 1:

eine Aufzugsanlage mit mehreren Schachttüren;

Figur 2:

eine der Schachttüren mit einem Türrahmen;

Figur 3:

einen Türpfosten der Schachttür mit einer an dieser Schachttür angeordneten Aufzugskabine im Querschnitt;

Figur 4a:

das Befestigungselement und das daran zu fixierende erste Türrahmenelement gemäss einem Detail der Figur 3; und

Figur 4b:

das in Figur 4a dargestellte Detail im Querschnitt.

The invention is explained in more detail below with reference to figures. Show it:

Figure 1:

an elevator system with several shaft doors;

Figure 2:

one of the landing doors with a door frame;

Figure 3:

a door jamb of the shaft door with an elevator car arranged on this shaft door in cross section;

Figure 4a:

the fastener and the first door frame element to be fixed thereto according to a detail of figure 3 ; and

Figure 4b:

this in Figure 4a shown detail in cross section.

figure 1 shows an elevator installation 2 . The elevator installation 2 is arranged in an elevator shaft 4 . The elevator system 2 comprises an elevator car 6 that can be moved along the elevator shaft 4, a counterweight 8 that can be moved in the opposite direction to the elevator car 6, and a support element 10 that connects the elevator car 6 and the counterweight 8. The support element 10 can be guided over deflection rollers 12, 14, with one of these deflection rollers 12, 14 can be designed as a drive roller of a drive unit of the elevator system 2.

The elevator shaft 4 has a plurality of shaft door openings which are usually arranged vertically one above the other, the shaft door openings providing access to the interior of the elevator shaft to floors 30a, 30b, 30c, 30d. The landing door openings are formed in a building wall 24 .

A shaft door 18a, 18b, 18c, 18d that can be assigned to the floor 30a, 30b, 30c, 30d is arranged at each of these shaft door openings. The elevator car 6 has a car door 16 . This car door 16 or the elevator car 6 can be arranged on one of the shaft doors 18a, 18b, 18c, 18d by moving the elevator car 6 in the elevator shaft 4.

figure 2 shows a shaft door 18 arranged on one of these floors 30. The shaft door 18 essentially comprises a door frame 22 and at least one door leaf 20.1, 20.2, the door opening being able to be closed or opened by means of the at least one door leaf 20.1, 20.2. The door opening is formed in a building wall 24, this building wall 24 usually delimiting the elevator shaft 4 on one side. The door frame 22 includes two door jambs 22.1, 22.2 and a lintel 22.3. A first of the two door posts 22.1 is arranged on one side of the door opening, the second of the door posts 22.2 is arranged on the other side of the door opening. The lintel 22.3 is arranged above the door opening.

One of the two door jambs 22.1, 22.2 or the lintel 22.3 has a chamber. Exemplary in figure 2 the chamber is shown to be located within one of the jambs 22.1. The door post 22.1 has walls 26.1, 26.3 delimiting the chamber.

figure 3 shows the in figure 2 door post 22.1, which has the chamber 26, is shown in cross section, with the elevator car 6 being arranged on the shaft door 18, to which the door post 22.1 is assigned. A control unit 60 is arranged within the chamber 26 . The door post 22.1 has a first and a second door frame element 28.0, 28.1 delimiting the chamber 26, with the according to FIG figure 3 illustrated second door frame element 28.1 can be formed by several door frame elements. The first door frame element 28.0 and the second door frame element 28.1 can be fixed directly to one another by means of a first fastening element 32. The first door frame element 28.0 can be removed in such a way that the chamber 26 or the control unit 60 that can be arranged or arranged in the chamber 26 can be removed by a service technician floor is accessible.

The removable first door frame element 28.0 is preferably designed as a corner element. In the figure 3 The bend 29 shown leading to the formation of the corner element has a right angle. If necessary, the angle of the bend 29 can be designed to be different from 90° in order to allow a different cross section of the door post 22.1 according to customer-specific requirements.

The first door frame element 28.0 has a side closure 54 designed as a side edge and the second door frame element 28.1 also has a side closure 56 designed as a side edge. The side edges 54, 56 preferably run parallel and are slightly spaced apart from one another when the first door frame element 28.0 is fixed to the second door frame element 28.1 by the first fastening element 32. An example is shown in figure 3 likewise a door post 40 of the car door 16 belonging to the elevator car 6 , this elevator car 6 being arranged on the floor 18 .

In the immediate vicinity of the first fastening element 32, the first and the second door frame element 28.0, 28.1 separate the chamber 26 from the interior of the elevator shaft 4. The first fastening element 32 comprises a tool element designed as a pin 34. For example, the pin 34 protrudes in the direction of the interior of the elevator shaft 4, so that it is not directly accessible to elevator passengers when the elevator car 6 is arranged on floor 18, since the pin 34 is located between the door posts 22.1, 40 of the elevator car 6 and the shaft door 18 is arranged. By means of a ruler-like tool 50, which can be pushed into the gap between the door post 22.1 of the car door 16 and the shaft door 18, the pin 34 of the fastening element 32 can be shifted parallel to the edges 54, 56 of the first and second door frame elements 28.0, 28.1 that the first door frame element 28.0 can be removed from the second door frame element 28.1. This shifting of the fastening element 32 may mean that the fastening element 32 cannot be detached from the second door frame element 28.1 either in its locked position or in its release position, as will be explained in more detail later in this description. The preferably rod-shaped fastening element 32 extends in its locked position along the alignment of this side edge 54.

The first door frame element 28.0 has a second side closure 54' designed as a side edge. The first door frame element 28.0 can also be fastened to the second door frame element 28.1 or to another door frame element (not shown) of the door post 22.1 by means of a second fastening element 32'. The second or further door frame element 28.1 adjoining the first door frame element 28.0 has a side edge 56' which is arranged directly parallel to the second side edge 54' associated with the first door frame element 28.0 when the second fastening element 32' is in its locked position.

Instead of connecting the first door frame element 28.0 to the second or further door frame element 28.1 by means of the second fastening element 54', the first door frame element 28.0 can be connected to the second or further door frame element 28.1 by means of a hinge, so that the first door frame element 28.0 can be locked when the release position of the first fastening element 32 can be pivoted into an open position. In this open position of the first door frame element 28.0, the chamber 26 or the control unit 60 is accessible to a service technician. The hinge is preferably formed parallel to the side edges 54,56.

If the first fastening element 32 is designed in such a way that it encompasses the pin 34 and is designed as a corner element by forming the angled portion 29, it is advantageous for the second fastening element to use a tool element that differs from a pin 34, since elevator passengers have direct access or direct vision to this or onto this pin and in this way easily transfer the second fastening element 32' manually from its locked position to its release position. Instead of the pin 34, the tool element can thus be designed as a hole 45' formed in the wall section 33, 33', which can be operated by a rod 50' or similar tool fulfilling the purpose. The second fastening element 32' can be transferred from its locked position into its release position by means of the rod 50', as can be carried out in the case of the first fastening element 32 by actuating the pin 34 using the tool 50.

The Figures 4a and 4b show a fastening element 32, 32 ', which both through the first and also by the second fastening element 32, 32' can be formed, and the first door frame element 28.0 according to an in figure 3 illustrated perspective AA or in cross section. Since the second fastener 32 'is largely the same as the first fastener 32 is formed for the sake of simplicity in the Figures 4a and 4b the arrangement (left/right) of only the first fastening element 32 is shown. Figure 4b is the representation in cross section of a detail of Figure 4a .

Figure 4a shows the fastening element 32, 32' spaced apart from the first door frame element 28.0, ie unlocked. This means that the door post 22.1 or the chamber 26 of the door post 22.1 is open. The fastening element 32, 32' can have a wall section 33, 33' and, for example, at least one finger 58. If the fastening element 32, 32' has a plurality of these fingers 58, these fingers 58 are arranged along a side edge 65, 65' of the fastening element 32, 32'. The fingers 58 can be formed out of the plane of the wall section 33, 33' by a bend 41.

The first door frame element 28.0 has a flat surface 37 and docking elements 52, for example. The docking elements 52 can be shaped out of the plane of the flat surface 37 by a bend 43 . The docking elements 52 are arranged along the side edge 54 of the first door frame element 28.0. The flat surface 37 is formed by a wall delimiting the door post 22.1. In the locked position of the fastening element 32, 32', the fingers 58 grip behind the docking elements 52 in a form-fitting manner, so that the first door frame element 28.0 is fixed to the second or further door frame element 28.1.

By moving the fastening element 32, 32' in direction V parallel to the side edges 54, 54', 56, 56' of the door frame elements 28.0, 28.1, the fastening element 32, 32' can be shifted from its locked position to its release position and vice versa.

For the transfer of the first door frame element 28.0 from its according to the Figures 4a, 4b From the released position shown into its locked position, the first door frame element 28.0 can be brought up to the fastening element 32 according to a movement B in such a way that the fingers 58 of the fastening element 32, 32' engage in the free spaces between the docking elements 52 of the first door frame element 28.0, the fastener 32, 32' still occupying the release position in this position. Subsequently, by means of the displacement of the fastening element 32, 32' that can be carried out using the tool 50, 50', the fingers 58, 58' can be displaced in such a way that the docking elements 52 develop the mechanical, form-fitting effect on the fingers 58, 58' and accordingly first door frame element 28.0 is fixed. When the fastening element 32, 32' has reached the locked position in this way, the fingers 58, 58' engage behind the docking elements 52 in a form-fitting manner.

On the other side of the wall section 33, 33', the fastening element 32, 32 can have a bend 71, 71' along a second of its side edges 63, 63' designed as an element that engages behind. For a positive interaction of the fastening element 32, 32' with the second or further door frame element 28.1, the second or further door frame element 28.1 can have such a bend. In the case of sufficiently pronounced bends in both the fastening element 32, 32' and the second or further door frame element, this can mean that - regardless of whether the fastening element 32, 32' is in its locked or released position - the fastening element 32, 32 'Remains connected to the second or further door frame element 28.1.

The tool element of one of the fasteners 32, 32' is preferably formed as a pin 34 or a hole 34' for engagement of the tool 50, 50'. Alternatively, the fastening element 32, 32' - as in Figure 4a shown - include several tool elements.

To move the first door frame element 28.0 into its locked position, the first door frame element 28.0 can be brought up to the fastening element 32 according to a movement B in such a way that the fingers 58 of the fastening element 32 engage in the free spaces between the docking elements 52 of the first door frame element 28.0.

Claims (11)

1. Door frame (22) of an elevator system (2) comprising an elevator shaft (4), wherein the door frame (22) forms a chamber (26) for accommodating a control unit (30), the door frame (22) comprising:

   - a first door frame element (28.0) which delimits the chamber (26) and has a side closure (54) extending in a straight line, and

   - a second door frame element (28.1) which delimits the chamber (26) and has a side closure (56) parallel to the side closure (54) of the first door frame element (28.0), and wherein the first door frame element (28.0) can be fixed to the second door frame element (28.1) by means of a fastening element (32) which extends along the side closures (54, 56) and the fastening element (32) is arranged on the first and on the second door frame element (28.0, 28.1) so as to be movable along the side closures (54, 56), and the fastening element (32) has a tool element (34, 45) for moving the fastening element (32) from a locked position into a release position, wherein the first door frame element (28.0) is fixed in the locked position on the second door frame element (28.1) and can be removed from the second door frame element (28.1) in the release position.
2. Door frame (22) according to claim 1, wherein the first door frame element (28.0) has a second side closure (54') extending in a straight line, and the door frame (22) has a second fastening element (32') for fixing the first door frame element (28.0) on the second or a further door frame element (28.1), and the second door frame element (28.1) has a second side closure (56') or the further door frame element has a side closure (56') and the second fastening element (32') has a tool element (45) for moving the second fastening element (32') from a locked position into a release position, wherein the first door frame element (28.0) is fixed in the locked position on the second or further door frame element (28.1) and can be removed from the second or further door frame element (28.1) in the release position.
3. Door frame (22) according to claim 1, wherein the first door frame element (28.0) has a second side closure (54') extending in a straight line, and the door frame (22) has a hinge extending along this second side closure (54') associated with the first door frame element (28.0) for fixing the first door frame element (28.0) on the second or a further door frame element (28.1) and the hinge is designed such that the first door frame element (28.0) can be pivoted on the hinge.
4. Door frame (22) according to any of the preceding claims, wherein the tool element (34, 45) can be operated by means of a tool (50).
5. Door frame (22) according to any of the preceding claims, wherein the tool element (34, 45) is formed by an elevation or a depression or an opening, in particular by a pin (34) or by a hole (45).
6. Door frame (22) according to claim 5, wherein the side closures (54, 56) of the first and the second door frame element (28.0, 28.1) that can be connected by the fastening element (32) face the elevator shaft (4) and the elevation which can be formed in particular as a pin (34) protrudes into the elevator shaft (4).
7. Door frame (22) according to any of the preceding claims, wherein the first door frame element (28.0) has at least one docking element (52) extending along its side closure (54) and the fastening element (32) has a finger which can be associated with the at least one docking element (52) in each case, wherein the docking element(s) (52) and/or the finger(s) are angled or designed in such a way that the at least one docking element (52) form-fittingly engages the finger which can be associated with the docking element (52) in a locked position of the fastening element (32) in order to prevent the first door frame element (28.0) from being detached from the fastening element (32) and the form fit can be lifted by moving the fastening element (32) into its unlocked position, and the first door frame element (28.0) can be detached from the fastening element (32) in this way.
8. Door frame (22) according to any of the preceding claims, wherein the second door frame element (28.1), along its side closure (56), and/or the fastening element (32) has/have a fold or folds extending continuously on the docking element (52) in order to form-fittingly connect the second door frame element (28.1) to the fastening element (32).
9. Door frame (22) according to any of the preceding claims, comprising a door post (22.1, 22.2), which door post (22.1, 22.2) is intended to be arranged on the side of the door opening enclosed by the door frame (22), and the door post (22.1, 22.2) has the door frame elements (28.0, 28.1).
10. Door frame (22) according to any of the preceding claims, wherein the side closure (54) associated with the first door frame element (28.0) and the side closure (56) associated with the second door frame element (28.1) are aligned vertically.
11. Door frame (22) according to any of the preceding claims, wherein the first door frame element (28.0) is formed by a corner element of the door frame (22).

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