EP2470462B1 - Service box for lifts - Google Patents

Description

The invention relates to a service box for an elevator installation.

Certain controls of functions of an elevator installation are located in a protected area, which should be accessible only to authorized persons. These include, for example, operating elements of the revision control, the lifting box or the fire brigade function. These controls are usually arranged in a box with a locked door, therefore, the term "hidden box" for such box is common. The door can usually only be opened with a key or an electronic signaler.
Other controls of functions of an elevator installation are arranged in a protected area which is to be accessible to all passengers. A telephone box, for example, can be designed as a box which can be closed by a door. However, telephone boxes should be accessible to all passengers unlike liftier boxes, revision controls or fire service boxes.

In EP 1 967 477 A1 An emergency device for installation in an elevator car of an elevator installation is described. Such emergency devices for accommodating certain functions typically have a swing gate. Usually a hinge is arranged laterally, so that the door can be opened to the left or to the right. The hinges may also be located at the bottom or top edge of the box so that the door can be opened up or down. In both cases, the door swings out into the room, for example into the passenger compartment of an elevator car. As a result, such doors take up much space. In addition, open swing doors pose a risk of injury, and they can be easily pushed off and thus damaged. Swing doors also have the disadvantage that the setting of the door columns is difficult, due to the often high weight of such swing doors.

The object of the invention is to provide an improved service box for elevator systems, which does not have the disadvantages of the previous swing doors.

To solve this problem, a service box for an elevator installation is proposed. The service box comprises a box-shaped base element. The service box further comprises a door, which lies in a closed state in a first level. The service box further comprises at least one lifting device, which is connected to the box-shaped base element and to the door, and by means of which the door can be transferred from the first level to a second level, wherein the first and the second level are substantially parallel to each other. The door can be moved to open the service box in the second level. As a result, the door can be moved over a surface adjacent to the service box so that the door never protrudes further than the second level into the room.

Figur 1:

ein beispielhaftes Bedienpaneel mit einer Servicebox;

Figur 2:

eine beispielhafte Servicebox;

Figur 3a:

eine beispielhafte Servicebox ohne Türe, wobei sich Schienen in einer ersten Ebene befinden;

Figur 3b:

eine beispielhafte Servicebox ohne Türe, wobei sich Schienen in einer zweiten Ebene befinden;

Figur 4:

eine beispielhafte Servicebox ohne Türe;

Figur 5a:

eine beispielhafte Hebevorrichtung in einer zweiten Position; und

Figur 5b:

eine beispielhaften Hebevorrichtung in einer ersten Position;

Further details and advantages of the invention will be described below with reference to embodiments and with reference to the drawings. Show it:

FIG. 1:

an exemplary control panel with a service box;

FIG. 2:

an exemplary service box;

FIG. 3a:

an exemplary service box without doors, wherein rails are in a first level;

FIG. 3b:

an exemplary service box without doors, wherein rails are in a second level;

FIG. 4:

an exemplary service box without a door;

FIG. 5a

an exemplary lifting device in a second position; and

FIG. 5b:

an exemplary lifting device in a first position;

In FIG. 1 an exemplary embodiment of a control panel 2 is shown. This control panel 2 may for example be arranged on an inner wall of an elevator car. The control panel 2 has a surface 9 which has recesses in which inter alia a display 20 and elements for operating the elevator are inserted. To enter the destination floor controls 21 are arranged on the control panel 2. The display 20 displays information such as the current floor, the destination floor, or the direction of travel.

In the illustrated control panel 2 an exemplary service box 1 is integrated. The service box 1 is covered with a cover 3, which is called for ease of understanding in the following door 3. This door 3 is secured by a lock 15. The lock 15 can be moved by means of a key (not shown) from a closed position I to an open position II. In an alternative, not shown embodiment, the service box 1 may be configured without a lock, so that it is freely accessible to anyone.

Front surfaces of the display 20, the controls 21, the lock 15 and the door 3 are in one embodiment preferably substantially on a plane of the surface 9 of the control panel. It is understood, however, that the controls 21 may protrude from the plane of the surface 9 in another embodiment.

In FIG. 2 an exemplary embodiment of the service box 1 is shown in a perspective view. The service box 1 is shown separately, ie in a non-installed state. A box-shaped base element 6 with side walls 7 forms an open space, which can be closed by the door 3. In FIG. 2 the base element 6 is partially open, so that an interior of the base element 6 is visible. The base member 6 is cuboid in the embodiment shown. The side walls 7 are preferably arranged so that they form a rectangle in an installed state viewed from a cabin inside, with two opposite side walls 7 extending parallel to each other.

It is understood that the shape of the base element 6 can also have other shapes. In an exemplary alternative embodiment, not shown, the base element 6 is cylindrical with an oval base.

In the embodiment shown, the door 3 is designed so that it is able to close an opening of the box-shaped base element 6. In the illustrated embodiment, the door 3 is rectangular in order to cover the cuboid box-shaped base element 6 can.

The door has two opposing guide elements which can be guided in rails 4, 4 '. These guide elements preferably run parallel to one another. In the in FIG. 2 illustrated embodiment, the door edges 5, 5 'form these guide elements, which in the rails 4, 4' can be guided. However, other guide elements may also be formed on the door 3, which can be guided in the rails 4, 4 '. In one embodiment, not shown, the door 3 on a bottom guide elements, which instead of the door edges 5, 5 'in the rails 4, 4' engage. In this embodiment, the rails 4, 4 'are concealed, and it is also possible to use doors 3 which have no parallel door edges 5, 5', for example oval-shaped doors.

The rails 4, 4 'are connected to lifting devices 12, which are fastened to the side walls 7. In the Figures 2, 3a and 3b in each case only one lifting device 12 is visible. It is understood that in the embodiment shown, each rail 4, 4 'is connected to a lifting device 12. In one embodiment, not shown, the service box has only one lifting device 12. This can be connected to only one side wall 7 of the base member 6 or with two opposite side walls 7 of the base member 6. The lifting devices 12 can transfer the rails 4, 4 'from a first plane to a second plane and vice versa. The rails 4, 4 'are preferably parallel to each other, and also parallel to two opposite side walls 7. The rails 4, 4' take the door edges 5, 5 'provided in designated guide grooves 14, so that the door 3 slidable and feasible in the Rails 4, 4 'is added.

The rails 4, 4 'each have a guide groove 14. This runs in the longitudinal direction of the rails 4, 4 'and is dimensioned so that the guide elements of the door 3 can be slidably received therein. The guide grooves 14 are open at least on one side, so that the guide elements of the door 3 can be moved out of the guide grooves 14 on this one side when opening the door 3.

Between the rails 4, 4 'or between the lifting devices 12, in one embodiment, a connecting element 8 is arranged. The connecting element 8 can be connected to both rails 4, 4 'and / or to both lifting devices 12, so that the rails 4, 4' or the lifting devices 12 are coupled to one another. As a result, the rails 4, 4 'move synchronously during a lifting operation of the lifting devices 12. The connecting element 8 gives the lifting devices 12 and the rails 4, 4 'mounted thereon additional stability.

In the embodiment shown, the rails 4, 4 'have an extension 10. The extension 10 is part of the lifting devices 12 and serves to connect the rails 4, 4' with other components of the lifting devices 12, such as pivoting elements eleventh

A side wall 7, over which the door 3 can be pushed, can be chosen freely. So can the service box 1 off FIG. 2 if they turn off in a control panel 2 FIG. 1 is installed, opened up, down, left or right. Preferably, an opening direction is selected such that, when the door 3 is open, no other functions such as the display 20 or the operating elements 21 are covered. In addition, the choice of the opening direction of the door 3 can be adapted to other conditions of the elevator car, such as the arrangement of cabin walls, car doors, design elements, handrails, or lighting.

In the FIGS. 3a and 3b a service box without a door is shown. In FIG. 3a the lifting devices 12 are in a first position and the rails 4, 4 'are in a first plane. In FIG. 3b the lifting devices 12 are in a second position and the rails 4, 4 'are in a second plane, the second plane being higher than the first plane.

In an exemplary embodiment, the lifters 12 include pivot members 11 which are secured to the side walls 7. By the pivot elements 11, the rails 4, 4 'raised in an arcuate movement. A length of the pivoting elements 11 is preferably chosen such that upon transferring the lifting devices 12 from the first to the second position the rails 4, 4 'are raised to the desired height so that the door 3 can be displaced over a selected side wall 7. The lifting devices 12 may additionally comprise spring elements (not shown), which support a lifting movement in one direction.

The in the Figures 2, 3a and 3b illustrated service box has supports 13, which are arranged in corners of the base element 6. These supports 13 are cylindrical, with a circular base of this cylinder is on a bottom of the base element 6. The supports 13 are arranged such that the lifting devices 12 are limited in their movement. As a result, the supports 13 prevent the lifting devices 12 from being lowered too far and that the door 3 can sink into the base element 6. In addition, 13 may be arranged in the supports spring elements, which support a lifting and or lowering of the lifting devices 12 from the first level to the second level and vice versa.

In addition, the lifting devices 12 may comprise a holding device, which holds the lifting devices 12 in their first and or second position. For example, the lifting devices 12 can be held in their first position, so that the door can not open spontaneously, but can be released from the holding device by a pressure on the door.

In another embodiment, the lifting devices 12 are held in their first position. Only by the operation of a key in a designated lock while the fixture can be solved.
In another embodiment, the lifting devices 12 are held in their second position by the holding device. This may be desirable to avoid or prevent spontaneous closure of the door.

In an exemplary embodiment, the service box has a locking mechanism for the door 3. When the door 3 is completely open and / or completely closed, and / or at a defined position therebetween, the door 3 engages in the locking mechanism provided in the rails 4, 4 '. As a result, the door 3, for example, must not be held if it would close in the open state by gravity. In one embodiment, the locking mechanism consists of cams on the door 3 and cooperating recesses in the rails 4, 4 '.

FIG. 4 shows an alternative embodiment of the lifting devices 12. Here, the rails 4, 4 'are raised in a linear movement. In FIG. 4 the lifting devices 12 are shown in a second position, in which the lifting devices 12 protrude and in which a door (not shown) in the rails 4, 4 'could be moved. The rails 4, 4 'have in this embodiment a differently shaped extension 10 as the rails 4, 4' in the FIGS. 3a and 3b , The extension 10 is also connected in this embodiment with other components of the lifting devices 12. The extension 10 has rail-shaped elements which are perpendicular to the rails 4, 4 'and which are slidably connected to other components of the lifting devices 12. By a displacement of these rail-shaped elements relative to other components of the lifting devices 12 and relative to the base element 6, the rails 4, 4 'transferred from the first to the second level and vice versa. In the in FIG. 4 illustrated embodiment, no connecting element 8 is provided.

The FIGS. 5a and 5b show components of a further embodiment of the lifting device 12 (without extensions 10 of the rails 4, 4 '). In each case only one side wall 7 of the service box is shown. It is understood that in a use state, a second lifting device 12 is arranged on an opposite side wall 7, not shown. In FIG. 5b the lifting device 12 is in a first position, and in FIG. 5a the lifting device 12 is in a second position. Rails are in the FIGS. 5a and 5b not shown.

The lifting device 12 of this embodiment comprises scissor elements 16, 16 ', guide cams 18 and guide slots 19. The guide cams 18 are attached to the scissor elements 16, 16'. In this embodiment, it has two upper, two lower and a central guide cam 18. Each scissor element 16, 16 'has a respective lower and an upper guide cam 18. The middle guide cam 18 is connected to both scissor elements 16, 16' and connects them with each other , Each guide cam 18 is mounted in a respective guide slot 19. Two upper guide slots 19, which support the two upper guide cams 18, are arc-shaped. A middle guide slot and two lower guide slots, which store the middle respectively the two lower guide cams 18, are elongated and formed without bends. When the lifting device 12 is transferred from the first position to the second position and vice versa, the guide cams 18 are displaced in the guide slots 19. Upon lifting the door (not shown) by hand, the scissor elements 16, 16 'are vertically raised and at the same time horizontal merged. For example, if the lifting device 12 is moved by a biased spring, horizontally bringing the scissor elements 16, 16 'together raises the rails and door (not shown in this illustration) vertically.

When operating a service box according to the invention, it is possible, for example, to proceed as follows. When the door 3 is closed, the lifting devices 12 are first released from the holding device. This can be done for example by means of a key or by pressing the door 3. Then the Lifting devices 12 and thus the door 3 is guided from its first position to its second position. This can be done, for example, by hand or with the action of a preloaded spring. As a result, the rails 4, 4 'and the door 3 received therein move from their first level to their second level. Now the door 3 is moved in the rails 4, 4 'and thereby opened. This is preferably done by hand. When fully open door 3, the door is preferably held in the locking device. Now controls of functions that are housed in the service box can be operated without the door 3 must be kept. After operating the controls of functions, the door 3 is closed again. In this case, the door 3 is released from the locking device and moved in the rails until it is located substantially directly over the opening of the service box. Then, the lifting devices 12 are transferred from their second position to their first position, so that the rails 4, 4 'and the door 3 are transferred from the second level to the first level. This process is preferably done by hand. When the door 3 is closed, the holding device is now actuated. This can be done with a key and a lock, or by snapping a Hackens, so that the lifting devices 12 are automatically hooked when closing in the fixture.

Instead of rails 4, 4 ', other types of mechanisms for transferring the door 3 from a first level to a second level may also be used. Various embodiments are available to the person skilled in the art. For example, the door 3 may be suspended via a single rotary element. This single rotary element is preferably arranged near a corner of the door 3. When rotated ninety degrees clockwise or counterclockwise, the door 3 releases the opening of the box-shaped base member 6, so that it is accessible to the controls housed therein. The rotary member comprises a lifting device 12 and may have a holding device to hold the door 3 in a certain position. In this embodiment, no rails 4, 4 'necessary because the door is rotated away.

Claims (12)

1. Service box for a lift installation, the service box comprising:

   a base element (6);

   a door (3) which is situated in a first plane in a closed state; and

   at least one lifting device (12), characterized in that the lifting device (12) is connected to the base element (6) and to the door (3), and by means of which the door (3) can be transferred from the first plane into a second plane, wherein the first and the second planes are substantially parallel to one another;

   and in that the door (3) can be displaced in the second plane for opening the service box.
2. Service box according to Claim 1, wherein the door (3) has two guide elements which extend in parallel, and wherein the lifting device (12) comprises rails (4, 4') in which the two guide elements of the door (3) are accommodated in a displaceable manner such that the door (3) can be displaced in the direction of the guide elements which extend in parallel.
3. Service box according to Claim 2, wherein the door sides (5, 5') are designed as guide elements and are accommodated in a displaceable manner in guide grooves (14) of the rails (4, 4').
4. Service box according to Claim 1 or 2, wherein the guide elements are arranged on an underside of the door (3).
5. Service box according to one of Claims I to 4, wherein rails (4, 4') and door (3) are arranged substantially parallel to a surface (9) which surrounds the service box (1) in an installed state.
6. Service box according to Claim 5, wherein, on opening, the door (3) can be displaced upwardly, downwardly, to the left or to the right over the surface (9).
7. Service box according to one of Claims 1 to 6, wherein the lifting device (12) has pivot elements (11) which are connected to the rails (4, 4') and to the box-shaped base element (6).
8. Service box according to Claim 7, wherein, on transfer of the lifting device (12) from a first position into a second position by the pivot elements (11), a curved movement of the rails (4, 4') and the door (3) can be executed.
9. Service box according to one of Claims 1 to 6, wherein the rails (4, 4') and the door (3) can be transferred by the lifting device (12) from a first plane into a second plane in a linear movement.
10. Service box according to one of Claims 1 to 9, wherein a holding device fixes the lifting device (12) in one position.
11. Service box according to one of Claims 1 to 10, wherein a locking device which is arranged in the rails (4, 4') fixes the door (3) in one position.
12. Lift installation having a service box according to one of Claims 1 to 11.

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