EP0922663A1 - Elevator, in particular traction sheave elevator - Google Patents

Abstract

Where necessary, a closed-off motor room can be set up temporarily in the hoist shaft (14) for access to the drive motor (26) and/or the control cabinet (24). Operation of the hoist cage (16) in the sections of the shaft beneath or above the temporary motor room is unaffected. Preferably the temporary motor room can be set up in the area at the top of the shaft and the uppermost stopping point or in the area of the shaft pit and a lowermost stopping point.

Description

The present invention relates to an elevator, in particular a traction sheave elevator, with a car guided in a lift shaft md with a Drive machine with assigned control cabinet.

In the past, elevator systems were due to applicable regulations Separate lockable for engines and associated switchgear Rooms (engine rooms) provided. To help you plan Buildings are more independent from the project planning requirements of the To achieve elevator manufacturer and the creation of a separate Saving engine-related costs have been made in the past Years ago lifts without a separate engine room were proposed. Such Elevators are for example from EP 0 631 968 B1, EP 0 710 618 A2 and EP 0 719 724 A1. In those described in these publications Elevators, the drive unit is completely in the elevator shaft arranged so that no additional machine or engine room is needed.

In such elevators, the drive machine is usually located in the upper one or lower part of the elevator shaft between that of the car area required during its movement and a wall of the lift shaft arranged. The control unit of the elevator is corresponding in the door frame of the shaft door on the top or bottom floor arranged and for maintenance and repair work from the floor corridor can be operated from The control has to be operated from the floor corridor the result is that the hallway is at least partially closed off during maintenance work must be what, in extreme cases, hinders escape routes leads. Maintenance and repair work are also only limited possible because when operating the control elements from the floor corridor from no or only limited visual contact with the car and thus no (sufficient) observation of their driving behavior is possible. A Check the engine while driving at nominal speed therefore not possible.

From EP 0 646 537 A1 it is known, in the case of an elevator with above the Drive shaft arranged engine room in the shaft head a plate or to provide a carrier which is arranged transversely in the region of the shaft head can be and serves as a maintenance platform.

A temporary work seam protection is known from EP 0 725 033 A1, by means of which the car penetrates into a temporary work space how, for example, the shaft pit of an elevator is avoided. For this purpose, swivel buffers are provided, which before entering the Shaft pit can be swiveled into the driving area of the car. Of the Swivel buffer is preferably automatically by gravity in the Securing position limiting the travel path of the car can be tilted.

An automatic safety device is known from EP 0 129 678 A1 a temporary work room in the shaft pit, the one mechanically adjustable in the travel path of the car as travel path limitation Lever includes. When opening one leading into the pit The lever is forced into the door to limit the travel path of the car Secured position pivoted, with the lever pivoted in the operation of the elevator is interrupted.

Proceeding from this, the object of the invention is an elevator of the type mentioned above, which does not have a separate engine room needed and still placed on an engine room Orders are sufficient.

To solve this problem, an elevator with the features of the claim 1 suggested. The elevator according to the invention offers the possibility of temporarily set up a locked engine room without that the operation of the car in the below or above the temporarily installed engine compartment lying lying shaft sections is impaired. This will make the elevator available to the public Public traffic compared to the known elevators without Engine room increased. Furthermore are with repair and maintenance work no more disabilities connected in the floor corridor, because the maintenance personnel are temporarily set up in the elevator shaft Engine room stops and all work from the lift shaft can perform. The lockability of the engine room is particularly achieved in that through the shaft door in particular the top floor accessible temporary engine room after entering closed by the maintenance personnel by closing the shaft door becomes. Most of the well-known elevators without machine room Repairs are carried out with the shaft door open all maintenance can be done with the elevator according to the invention and repair work with the exception of work on the doors closed shaft door take place which increases the risk of damage to a third person (risk of falling) is minimized. Since the driving operation of the Elevator is not restricted in the other shaft sections, can do from that in the temporary engine room Maintenance personnel for the engine and switchgear directly during operation be observed at nominal speed, making adjustment work and troubleshooting are made considerably easier.

In practice, this is useful for setting up the temporary engine room the area of the shaft head (top stop of the elevator shaft) or the area of the shaft pit (bottom stop of the lift shaft). In particular, the installation of the engine room in the area of the shaft head proves to be advantageous, since then driving operation according to the invention of the elevator on all floors below the top floor can be maintained even during maintenance work.

In an advantageous embodiment of the invention, the control sequence of the The car can be switched over when the engine room is set up so that the shaft section occupied by the temporary engine room is no longer accessible through the car. According to the invention thus at least one control sequence of the car for normal operation as well as at least one control sequence for the maintenance operation, which ensures that the car does not enter the engine room occupied shaft section travels.

In a further advantageous embodiment of the invention is a device to limit the travel path of the car or the counterweight when the car is set up Engine room to avoid a collision of the car provided with the engine room. It has proven to be particularly advantageous thereby that an activation of the device for limiting the travel path inevitably in the establishment of the engine room. According to the invention there is thus a mechanical travel path limitation of the car directly or indirectly via the counterweight, so that even in the event of a malfunction the electronic control a collision of the car with the temporary engine room is avoided.

In an advantageous development of the invention, the device for Travel limit one on at least one guide rail of the car or the counterweight articulated carrier. The carrier is preferred hinged so that it is essentially in normal operation of the elevator is held vertically on the guide rail and when setting up the temporary Engine room automatically due to gravity in a because the travel path of the car or the counterweight limits the safety position panned. The carrier is preferably used as a travel path limitation of the car arranged downwards when the control cabinet and the temporary engine room in the shaft pit or in the Area of the lowest stop of the elevator shaft are arranged, and correspondingly to limit the travel of the counterweight downwards, if the control cabinet and the temporary engine room in the Shaft head of the elevator shaft or arranged in the area of the top stop are. In a particularly advantageous embodiment, this is customary buffers for the counterweight arranged in the shaft pit pointing upwards or the car on the counterweight or the car itself attached (pointing downwards) so that at the border of the route Carrier no additional buffer must be attached.

The floor and / or the ceiling of the engine room advantageously exist from at least one plate to be arranged transversely in the shaft, which Another advantageous embodiment can be arranged in different heights is. Depending on the repair or maintenance work involved in the Fahrachacht an arrangement of the temporary engine room on different Raised positions take place. In a further embodiment of the invention the plate has areas with different heights, so that a Maintenance-promoting ascent or descent in the temporary Engine room is made possible.

In a particularly advantageous embodiment, the plate is constantly in the elevator shaft arranged so that the establishment of the temporary engine room designed particularly simple.

To further achieve the object on which the invention is based, a Elevator with the features of claim 5 proposed. So is the control cabinet in the elevator shaft next to the lane of the elevator car arranged and at least one plate is provided for formation a walk-in platform and / or a protective roof in the control cabinet assigned horizontal position can be brought. This configuration enables on the one hand a space-saving and the available The well cross-section arrangement of the control cabinet is good to use the elevator shaft and, on the other hand, particularly easy accessibility the control cabinet during maintenance and repair work.

In a particularly advantageous embodiment of the invention according to claim 6 it is provided that the at least one plate in normal operation of the elevator serves as a cover for the control cabinet. So it comes as a cover of the control cabinet anyway existing plate according to the invention Double function by this in the maintenance or repair operation of the Elevator to form an accessible platform and / or a protective roof can be brought into a horizontal position. It is preferably at least a plate hinged to the control cabinet below and / or above, so that the plate by simply swiveling into the desired horizontal Position can be brought. The plate is advantageously in the horizontal Position at least with their opposite the articulation End on a support.

In an embodiment of the invention, the plate is articulated such that it is moved to the desired horizontal position by its own weight.

In a further embodiment of the invention, one of the plates is horizontal in its Position assigned safety device to prevent a Crash of people, especially a railing, is provided. Through this Measure is achieved that the plate together with the assigned Security device and the closable as already explained above The shaft door forms a closed temporary engine room. Here the safety device can be designed instead of simple cross struts the invention at least two in the form of a parallelepiped on the plate and struts articulated to the control cabinet, which in the horizontal Position the swiveled plate to form a safety railing.

In a particularly advantageous embodiment of the invention, the plate is by means of a motor-driven drive that can be operated from outside the lift shaft adjustable between their normal position and the horizontal position. This measure ensures that the shaft door only for Enter the plate placed in the horizontal position got to. The plate is moved into the horizontal position when closed Landing door from outside the elevator shaft, in particular from a facility accessible from the floor in or next to the Door frame of the assigned landing door. After entering the platform Serving plate by the maintenance staff will be the shaft door closed again and necessary maintenance and repair work is carried out with the shaft door closed. Thus, according to the invention, there is a risk of falling third parties minimized.

In a further embodiment of the invention, means for electrical monitoring one or both end positions of the plate are provided by means to limit the travel path of the car or the counterweight in horizontal Plate in position. This will ensures that the car is in a horizontal position cannot collide with the plate. As a means of limiting the route the device already described above is preferably suitable, which advantageously one on at least one guide rail of the Car or the counterweight articulated carrier comprises.

To further solve the problem on which the invention is based a device for temporarily limiting the travel path of a car or proposed a counterweight with the features of claim 9. Due to the inventive arrangement of the support element of the device to limit the travel path in the active position in a horizontal supported Position parallel to one through the two guide rails of the car or counterweight given level result in the impact of the car or counterweight on the support element no moments and thus no spreading forces. The impact of the car or counterweight forces exerted on the support element are mainly in Direction of impact i.e. perpendicular to the support element, via which to Support provided for the support element dissipated.

In an embodiment of the invention, the support element comprises two of the guide rails encompassing, parallel arranged profiles. The support element grips the guide rails in the active position with two profiles, so that there is a symmetrical arrangement. Through this The symmetrical arrangement results in a symmetrical derivation of the forces an impact of the car or walking weight, so that one-sided Strain of the fasteners and anchorages of the individual Elements of the device for limiting the travel path is avoided.

In a further embodiment of the invention, one of the profiles can be rotated Articulated baffle provided in the horizontal operative position rests on both profiles and as an impact surface for one on the car or counterweight attached buffer. By the invention The baffle becomes the intermediate space between the two profiles bridged and the impulse transmitted during the impact is over the baffle on the profiles of the support element and further on the Support element supporting conditions derived. Advantageously, the Baffle plate articulated on the support element so that it is in the Support position located in the desired position by its own weight Support position moved on the two profiles.

The support element according to the invention can be on one or divided on both Block the guideway on the side of the guide rail level or diagonally e.g. from the right side of the first rail to the left side of the second rail. In this case the buffer impact area can also be used without additional Baffle plate also arranged in the guide rail plane be, only the carrier pivot and the second edition are only on arranged on one side of the rail.

In an embodiment of the invention, the rotary bearing of the support element is in the horizontal supported operative position of the support element free of forces. This avoids that in the event of an impact of the car or counterweight forces are derived into the pivot bearing on the support element become. The pivot bearing is advantageously an elongated hole bearing. In the rest position of the support element outside the travel path of the car or counterweight, i.e. in a substantially vertical position the corresponding journal of the support element in the substantially vertically running elongated holes. In the horizontal effective position of the Supporting element is supported on the pivot bearing side in such a way that the trunnions in the elongated holes are not in the end position.

In a further embodiment of the invention are for supporting the support element Pads arranged in the Wilkposition on the guide rails intended. By arranging the supports on the guide rails there is a particularly advantageous derivation of the in the event of an impact on the Forces arising along the forces, for example, in the shaft wall anchored guide rails.

In an embodiment of the invention, the support element is on the first guide rail arranged and advantageously in a on the first guide rail attached head piece rotatably mounted.

1. Aufzug, insbesondere Treibschibenaufzug, mit einem in einem Fahrschacht geführten Fahrkorb und mit einer Antriebsmaschine mit zugeordnetem Steuerschrank, gekennzeichnet durch einen im Bedarfsfall zum zugang der Antriebsmaschine und/oder des Steuerschranks temporär in dem Fahrschacht einrichtbaren abgeschlossenen Triebwerksraum, wobei der Fahrbetrieb des Fahrkorbes in den unterhalb bzw. oberhalb des temporär eingerichteten Triebwerksraums liegenden Fahrschachtabschnitten unbeeinträchtigt ist.

2. Aufzug nach Punkt 1, dadurch gekennzeichnet, daß der Triebwerksraum im Bereich des Schachtkopfes und einer obersten Haltestelle oder im Bereich der Schachtgrube und einer untersten Haltestelle des Fahrschachtes einrichtbar ist.

3. Aufzug nach Punkt 1 oder 2, dadurch gekennzeichnet, daß der Steuerungsablauf des Fahrkorbs bei eingerichtetem Triebwerksraum derart umschaltbar ist, daß der durch den Triebwerksraum belegte Fahrschachtabschnitt nicht mehr durch den Fahrkorb anfahrbar ist.

4. Aufzug nach einem der Punkte 1 bis 3, dadurch gekennzeichnet, daß eine Vorrichtung zur Fahrwegbegrenzung des Fahrkorbes oder des Gegengewichts bei eingerichtetem Triebwerksraum zur Vermeidung einer Kollision des Fahrkorbs mit dem Triebwerksraum vorgesehen ist.

5. Aufzug nach Punkt 4, dadurch gekennzeichnet, daß eine Aktivierung der Vorrichtung zur Fahrwegbegrenzung zwangsweise bei der Einrichtung des Triebwerksraumes erfolgt.

6. Aufzug nach einem der Punkte 1 bis 5, dadurch gekennzeichnet, daß der Boden und/oder die Decke des Triebwerksraumes aus mindestens einer quer im Schacht anzuordnenden Platte bestehen.

7. Aufzug nach Punkt 6, dadurch gekennzeichnet, daß die Platte Bereiche mit unterschiedlichen Höhen aufweist.

8. Aufzug nach Punkt 6 oder 7, dadurch gekennzeichnet, daß die Platte ständig im Fahrschacht angeordnet ist.

9. Aufzug, insbesondere Treibscheibenaufzug, insbesondere nach einem der Punkte 1 bis 8, mit einem in einem Fahrschacht geführten Fahrkorb und mit einer Antriebsmaschine mit zugeordnetem Steuerschrank,
dadurch gekennzeichnet,
daß der Steuerschrank in dem Fahrschacht neben der Fahrbahn des Fahrkorbs angeordnet ist und daß mindestens eine Platte vorgesehen ist, die zur Bildung einer begehbaren Plattform und/oder eines Schutzdaches in eine dem Steuerschrank zugeordnete horizontale Position bringbar ist.

10. Aufzug nach Punkt 9, dadurch gekennzeichnet, daß die mindestens eine Platte in dem Fahrschacht über, unter oder gegenüber dem Steuerschrank angeordnet ist.

11. Aufzug nach Punkt 9 oder 10, dadurch gekennzeichnet, daß die mindestem eine Platte schwenkbar angeordnet ist.

12. Aufzug nach einem der Punkte 9 bis 11, dadurch gekennzeichnet, daß die mindestens eine Platte im Normalbetrieb des Aufzugs als Abdeckung des Steuerschranks dient.

13. Aufzug nach Punkt 12, dadurch gekennzeichnet, daß die mindestens eine Platte an dem Steuerschrank unten und/oder oben drehbar angelenkt ist.

14. Aufzug nach einem der Punkte 11 bis 13, dadurch gekennzeichnet, daß die Platte in der horizontalen Position zumindest mit ihrem der Anlenkung gegenüberliegenden Ende aufeiner Abstützung aufliegt.

15. Aufzug nach einem der Punkte 11 bis 14, dadurch gekennzeichnet, daß die Platte derart angelenkt ist, daß sie sich durch ihr Eigengewicht in die horizontale Position bewegt.

16. Aufzug nach einem der Punkte 9 bis 15, dadurch gekennzeichnet, daß eine der Platte in deren horizontaler Position zugeordnete Sicherungseinrichtung zur Verhinderung eines Absturzes von Personen vorgesehen ist.

17. Aufzug nach einem der Punkte 9 bis 16, dadurch gekennzeichnet, daß die Platte mittels eines von außerhalb des Fahrschachtes betätigbaren motorgetriebenen Antriebs zwischen ihrer Normalposition und der horizontalen Position verstellbar ist.

18. Aufzug nach einem der Punke 9 bis 17, dadurch gekennzeichnet, daß Mittel zur elektrischen Überwachung einer oder beider Endlagen der Platte vorgesehen sind.

19. Aufzug nach Punkt 18, dadurch gekennzeichnet, daß die Mittel zur elektrischen Überwachung mit einer Vorrichtung zur Fahrwegbegrenzung des Fahrkorbes oder des Gegengewichts bei in horizontaler Position befindlicher Platte in Verbindung stehen.

20. Vorrichtung zur zeitweisen Fahrwegbegrenzung eines Fahrkorbs oder Gegengewichts für einen Aufzug, insbesondere nach einem der Punkte 1 bis 19, mit einem Stützelement, das in seiner Ruhestellung außerhalb des Fahrwegs des Fahrkorbs oder Gegengewichts im Bereich einer ersten Führungsschiene des Fahrkorbs bzw. Gegengewichts in eine in den Fahrweg ragende Wirkposition schwenkbar angeordnet ist,
dadurch gekennzeichnet,
daß die Verschwenkung des Stützelements parallel zu einer oder diagonal durch eine durch die erste Führungsschiene und eine der ersten Führungsschiene gegenüberliegende zweite Führungsschiene gegebenen Ebene erfolgt und daß das Stützelement in der Wirkposition eine im wesentlichen horizontale abgestützte Lage einnimmt.

21. Vorrichtung nach Punkt 20, dadurch gekennzeichnet, daß das Stützelement zwei in der Wirkposition die Führungsschienen umgreifende, parallel zueinander angeordnete Profile umfaßt.

22. Vorrichtung nach Punkt 21, gekennzeichnet durch eine an einem der Profile angelenkte Prallplatte, die in der horizontalen Wirkposition auf beiden Profilen aufliegt und als Aufprallfläche für einen an dem Fahrkorb bzw. Gegengewicht angebrachten Puffer dient.

23. Vorrichtung nach einem der Punkte 20 bis 22, dadurch gekennzeichnet, daß die Drehlagerung des Stützelements in der horizontalen abgestützten Wirkposition des Stützelements im wesentlichen kräftefrei ist.

24. Vorrichtung nach Punkt 23, dadurch gekennzeichnet, daß die Drehlagerung eine Langlochlagerung ist.

25. Vorrichtung nach einem der Punkte 20 bis 24, dadurch gekennzeichnet, daß zur Abstützung des Stützelements in der Wirkposition an den Führungsschienen angeordnete Auflagen vorgesehen sind.

26. Vorrichtung nach einem der Punkte 20 bis 25, dadurch gekennzeichnet, daß das Stützelement an der ersten Führungsschiene angeordnet ist.

27. Vorrichtung nach Punkt 26, dadurch gekennzeichnet, daß das Stützelement in einem an der ersten Führungsschiene befestigten Kopfstück drehbar gelagert ist.

The following numbered listing gives an overview of the preferred embodiments of the invention:

1.Elevator, in particular traction sheave elevator, with a car guided in a lift shaft and with a drive machine with an associated control cabinet, characterized by a closed engine room that can be temporarily set up in the lift shaft if necessary for access to the drive machine and / or the control cabinet, the driving operation of the lift car in the elevator shaft sections below or above the temporarily installed engine room are unaffected.

2. Elevator according to item 1, characterized in that the engine room can be set up in the area of the shaft head and a top stop or in the area of the shaft pit and a bottom stop of the elevator shaft.

3. Elevator according to item 1 or 2, characterized in that the control sequence of the elevator car can be switched over with the engine room set up such that the elevator shaft section occupied by the engine room can no longer be approached by the elevator car.

4. Elevator according to one of items 1 to 3, characterized in that a device for limiting the travel path of the car or the counterweight is provided in the engine room to avoid a collision of the car with the engine room.

5. Elevator according to point 4, characterized in that an activation of the device for limiting the travel path is forcibly carried out when setting up the engine room.

6. Elevator according to one of items 1 to 5, characterized in that the floor and / or the ceiling of the engine room consist of at least one plate to be arranged transversely in the shaft.

7. Elevator according to point 6, characterized in that the plate has areas with different heights.

8. Elevator according to item 6 or 7, characterized in that the plate is constantly arranged in the elevator shaft.

9. elevator, in particular traction sheave elevator, in particular according to one of items 1 to 8, with a car guided in a lift shaft and with a drive machine with an associated control cabinet,
characterized,
that the control cabinet is arranged in the elevator shaft next to the carriageway of the elevator car and that at least one plate is provided which can be brought into a horizontal position assigned to the control cabinet to form a walkable platform and / or a protective roof.

10. Elevator according to item 9, characterized in that the at least one plate is arranged in the elevator shaft above, below or opposite the control cabinet.

11. Elevator according to item 9 or 10, characterized in that the at least one plate is pivotally arranged.

12. Elevator according to one of items 9 to 11, characterized in that the at least one plate serves as a cover for the control cabinet during normal operation of the elevator.

13. Elevator according to item 12, characterized in that the at least one plate is pivotally articulated on the control cabinet below and / or above.

14. Elevator according to one of items 11 to 13, characterized in that the plate in the horizontal position rests on a support at least with its end opposite the articulation.

15. Elevator according to one of items 11 to 14, characterized in that the plate is articulated in such a way that it moves into the horizontal position by its own weight.

16. Elevator according to one of the items 9 to 15, characterized in that a safety device assigned to the plate in its horizontal position is provided to prevent people from falling.

17. Elevator according to one of items 9 to 16, characterized in that the plate is adjustable between its normal position and the horizontal position by means of a motor-driven drive which can be actuated from outside the elevator shaft.

18. Elevator according to one of the points 9 to 17, characterized in that means for electrical monitoring of one or both end positions of the plate are provided.

19. Elevator according to item 18, characterized in that the means for electrical monitoring are connected to a device for limiting the travel path of the car or the counterweight when the plate is in the horizontal position.

20.Device for temporarily limiting the travel path of a car or counterweight for an elevator, in particular according to one of items 1 to 19, with a support element which, in its rest position, outside the travel path of the car or counterweight in the region of a first guide rail of the car or counterweight into a the operative position projecting into the guideway is pivotally arranged,
characterized,
that the pivoting of the support element takes place parallel to or diagonally through a plane given by the first guide rail and a second guide rail opposite the first guide rail, and that the support element assumes an essentially horizontal supported position in the operative position.

21. The device according to item 20, characterized in that the support element comprises two in the operative position, the guide rails encompassing, arranged parallel to each other.

22. Device according to item 21, characterized by a baffle plate articulated on one of the profiles, which rests on the two profiles in the horizontal effective position and serves as an impact surface for a buffer attached to the car or counterweight.

23. Device according to one of the items 20 to 22, characterized in that the rotary bearing of the support element in the horizontal supported operative position of the support element is essentially free of forces.

24. The device according to item 23, characterized in that the pivot bearing is an elongated hole bearing.

25. Device according to one of the items 20 to 24, characterized in that supports are provided for supporting the support element in the operative position on the guide rails.

26. Device according to one of the items 20 to 25, characterized in that the support element is arranged on the first guide rail.

27. The apparatus according to item 26, characterized in that the support element is rotatably mounted in a head piece attached to the first guide rail.

Figur 1

zeigt einen Querschnitt durch das oberste Stockwerk eines erfindungsgemäßen Aufzugs mit im obersten Stockwerk befindlichem Fahrkorb im normalen Fahrbetrieb.

Figur 2

zeigt den Querschnitt der Figur 1 im Wartungsbetrieb mit temporär eingerichtetem Triebwerksraum und unterhalb des Triebwerksraums liegendem Fahrkorb.

Figur 3

zeigt eine Ansicht des erfindungsgemäßen Aufzugs gemäß Linie III-III der Figur 2.

Figur 4

zeigt eine perspektivische Ansicht der Darstellung der Figur 3.

Figur 5

zeigt eine erfindungsgemäße Vorrichtung zur zeitweisen Begrenzung des Fahrwegs eines Gegengewichts.

The invention is shown schematically in the drawing using exemplary embodiments and is explained in more detail below with reference to the drawing.

Figure 1

shows a cross section through the top floor of an elevator according to the invention with the car located on the top floor in normal driving operation.

Figure 2

shows the cross section of Figure 1 in maintenance operation with a temporary engine room and car lying below the engine room.

Figure 3

shows a view of the elevator according to the invention along line III-III of Figure 2.

Figure 4

shows a perspective view of the representation of FIG. 3.

Figure 5

shows a device according to the invention for temporarily limiting the travel path of a counterweight.

Figure 1 shows a cross section through the top floor of an inventive Elevator 10. Elevator 10 includes one through shaft walls 12 limited elevator shaft 14, in which a car 16 along Guide rails 26 is guided in the vertical direction of travel. On the floor side is in the shaft wall 12 a door opening delimited by a reveal 22 provided, which is closed by means of a shaft door 20. The Car 16 is assigned a car door 18, which is used to open the passage between car 16 and the floor together with the Landing door 20 can be opened.

Between the car 16 and the one on the left in the illustration in FIG. 1 Manhole wall 12 are on the manhole wall 12 in guide rails 54, 56 guided counterweight 50 and a control cabinet 24 are arranged. The control cabinet 24 has a plate 30 on the shaft side as an openable one Cover on. The control cabinet 24 is one not shown and also assigned to the elevator 10 drive machine arranged in the shaft. The control cabinet is advantageously in the area of the drive machine arranged.

Figure 1 shows the elevator 10 according to the invention in normal operation with the Car 16 in the stop position in the top stop. To carry out of work to which the control cabinet 24 must be accessible (maintenance operation), the car 16 goes down from the top stop hazards. The maintenance operation is shown in dashed lines in FIG Car 16 and car door 18 are shown.

To initiate the maintenance operation of the elevator 10 is in the Representation of Figures 1 and 2 arranged to the left of the soffit 22 Control box 34 serving as the cover of the control cabinet 24 Plate 30 lowered. The plate 30 is in the lower area of the control cabinet 24 rotatably articulated (see FIGS. 3 and 4) and is for example by means of of a cable, not shown, moves up and down. To the process lowering or unfolding the plate 30 into the desired horizontal The position of the plate 30 on the control cabinet is to be simplified in this way 24 articulated that it is due to gravity due to its own weight in the horizontal position is pulled. The cable is driven advantageously electrical and can be used in the event of a power failure anyway. already provided 12 volt battery can be powered. The The cable drum of the cable drive is advantageously on or in the control cabinet 24 arranged in the upper region of the vertically standing plate 30 and the rope engages the upper end of the vertically standing plate 30.

When the desired horizontal position is reached, the plate 30 lies with it its end opposite the linkage to the control cabinet 24 on a support provided on a guide rail 26 of the car 16 32 aufund forms an accessible platform. This is in the illustration 2 based on the footprints F and in the illustration of Figure 3 using the dash-dotted operator B clarifies. The guide rail 26 is by means of rail brackets 28 on the Well wall 12 attached.

In order to increase the stability of the plate 30, it has at least along their long sides each over a raised edge 31, the additional serves as a skirting board for fall protection. Furthermore, there is security reasons a railing 36 is provided, which consists of two on the side Control cabinet 24 articulated longitudinal struts 38 and one of the two longitudinal struts 38 formed with the plate 30 articulated cross strut 39 is. The railing struts 38, 39 are parallelepiped-like together with the Plate 30 pivotable. The longitudinal struts grip to increase stability 38 when horizontal alignment is achieved in one on the guide rail 26 provided support 40.

After the plate 30 has been lowered into the horizontal position, in which it serves as a walk-in platform, the shaft door 20 is opened, see above that the platform can be entered by the maintenance person. The between a landing paragraph 44 and the plate 30 existing gap (cf. Figure 4) corresponds in height and depth to the regulations in force approved gap dimensions. Optionally, on plate 30 as an undersecurity an additional (shown in dashed lines) strut 46 for Gap reduction and possibly be provided as a climbing aid.

After entering the platform, operator B can open the landing door 20 close behind. Thus, according to the invention, the one walkable platform forming lowered plate 30, which with the plate 30th connected security railings 36, the shaft walls 12 and the shaft door 20 a temporarily furnished, enclosed engine room was created, in which the maintenance personnel shielded the public can do the necessary work. In particular, there are no complex Escape routes that impair public traffic and, in extreme cases, escape routes blocking measures necessary. Expressed for the audience the maintenance operation that the car 16 is no longer in the top floor can drive because this section of the elevator shaft seized by the temporary engine room is. In all of them below the temporary engine room However, regular driving is possible on floors. The necessary Safety devices, such as limit switches, are corresponding also intended for the temporary engine room. Beyond that in addition to the components for the temporary engine room in the shaft cross section the security room required above and below is also arranged.

According to the invention, this temporarily offers the operating and maintenance personnel engine room has the further advantage that the car 16 and other components in the shaft, such as the engine, the speed limiter and the like, from the platform can be observed from, so that if necessary settings in Driving at nominal speed are possible.

To secure the lowered plate 30 from a collision with the car 16 according to the invention is a device for temporary limitation the travel path of the counterweight 50 is provided downward (see FIG. 5). The device according to the invention for limiting the travel path (travel limiter) 60 includes a corresponding in the lower shaft area Height arranged on a first guide rail 54 of the counterweight 50 Support element 62, which is in particular made of metal. The support element 62 measures two elongated profiles 62a, 62b, which are parallel and spaced apart attached to each other at a head end in a head piece 66 and at the head end by means of journals 69 in the head piece 66 rotatably are. For receiving the bearing pins 69 are 66 in the head piece Elongated holes 68 are provided which extend in a substantially vertical direction extend. The head 66 is in the illustrated embodiment arranged on the first guide rail 54. The support element 62 is in the headpiece 66 is articulated such that it with the profiles 62a, 62b Grips guide rail 54 and by its own weight in a horizontal, position limiting the travel of the counterweight 50 (active position) is pulled.

In normal operation of the elevator, the support element 62 is essentially one vertical constraint on the first guide rail 54 outside the travel path of the counterweight 50 held. This is done, for example using switchable magnets. An electrical one is advantageous Monitoring of the two end positions (forced position and effective position) of the Support element 62 is provided. When lowering the plate 30 by appropriate Actuation of an element in the control box 34 becomes this Disengaged position of the support member 62 released. This is done, for example, by means of one monitoring the position of the plate 30 on the control box 24 Sensor holder. The support element 62 then falls due to the action of gravity in a horizontal position, in which it corresponds to that of the articulation opposite ends of the profiles 62a, 62b on one at the second guide rail 56 of the counterweight 50 provided support 72 rests.

Furthermore, the profiles 62a, 62b are in the operative position of the travel limiter 60 arranged on a on the first guide rail 54 Edition 70 on that in the embodiment shown in Figure 5 also serves to attach the head piece 66. By supporting the Support element 62 on the support 70, the bearing plugs 69 in the described Elongated holes 68 raised so that they elongated holes 68th no longer act, so that the rotary bearing of the support element in the active position is free of forces. The pads 70, 72 are advantageous screwed to the guide rails 54, 56 in the region of a rail joint, the existing ones for the butt flaps of the guide rails Drill holes are used. Preferably comes the requirements 70, 72 in addition to the function of the support also the function of Butt flaps too.

In the horizontal operative position shown in FIG. 5, the travel limiter delimits 60 with the support element 62 the path of the counterweight 50, wherein a buffer 52 is provided on the counterweight 50, which on a baffle 74 of the support element 62 hits. The baffle 74 lies on the two profiles 62a, 62b and is thus on the profile 62b (in in the representation of Figure 5 not visible) rotatably articulated that to release the space between the profiles 62a, 62b at Folding up the support element 62 to the first guide rail 54 pivoted away can be. The baffle plate forms when pivoted away 74 with the support element 62 advantageously an angle that is smaller is as 90 °, which causes the center of gravity of the baffle in front the axis of rotation and the baffle plate with the axis of rotation lying horizontally folds down by its own weight and on the profiles 62a, 62b hangs up.

With the guideway limiter according to the invention shown in a essential torque-free derivation in the event of an impact of the counterweight forces exerted on the guideway limiter above those on the guide rails attached supports along the guide rails and the for mounting the guide rails serving rail brackets. Because only in Effective forces occur in the direction of the guide rails, is with the invention Guideway limiters less stress on the fasteners in the shaft, especially the rail bracket connected, so that a smaller number of rail brackets must be used or the Rail bracket can be dimensioned smaller. The invention Travel limiter is particularly suitable for use with the temporary engine room according to the invention, since with the guideway a collision of the car with the platform of the temporary Engine room reliably avoided and thus driving below or guaranteed above the temporary engine room.

The support element of the guideway limiter according to the invention can of course include only one profile, which is in the operative position next to the guide rails the counterweight (or the car) comes to rest. This in The embodiment shown in Figure 5 with two parallel to each other arranged and encompassing the guide rails in the operative position However, profiles ensure a symmetrical derivation of the occurring Forces so that the guide rails used for discharge are not one-sided be loaded and warping of the guide rails excluded becomes. The profiles can be made in one piece or in multiple pieces be and meet the requirement through their structure and shape sufficient stability and torsional rigidity.

The invention is not based on that shown in the drawing and in the description of the figures described embodiments limited. So is it is possible, for example, to arrange the control cabinet with a pivotable one Coverage in the pit and / or in the area of the lowest floor to be arranged and the guideway limitation above the lowest Floor not in the track of the counterweight, but in the track of the Car to be provided. With the arrangement of the control cabinet in the lowest Floor, it is advisable to design the plate as swiveling upwards, so that they are the protective roof of the temporarily adjustable engine room forms. Also in the described embodiment of the invention in the top An additional plate can be provided in the control cabinet located on the floor that can be swiveled upwards and as (accessible and with protective canopy of the temporarily adjustable Engine room acts. For this purpose, the cover of the control cabinet also be divided, for example, in half the height, the lower one Section of the cover can be folded down as a walk-on platform and the upper one Section can be folded up as a protective roof.

The walk-in platform for the temporary engine room according to the invention does not have to be swiveled through a cover of the control cabinet be educated. For example, the plate on the ceiling of the The shaft head must be suspended outside the travel path of the car and, if necessary, be lowered by means of a cable or the like, different heights can be selected for the platform to be walked on are. In this case, the fall protection can be used as a protective grille that can be rolled up be trained. The plate for the walk-on platform can, for example at the control cabinet on the shaft wall next to the rails or be arranged opposite the control cabinet or behind the door frame, held in a recess in the shaft door or on a shaft wall be from where they can be removed manually and at the appropriate Place in the elevator shaft can be arranged.

In order to obtain an elevator that can be used as flexibly as possible, are advantageous individual control functions, especially for personal exemption, Diagnostics, technical surveillance testing and the like, from led out of the elevator shaft and, for example, into that from the floor corridor integrated from accessible control box.

The invention is also not for use in elevators where the drive machine with cable drive in the elevator shaft above or below the arranged from the car lane is limited. Much more it is also suitable for arranging the drive machine in the elevator shaft next to the carriageway used by the car.

Claims (11)

Elevator, in particular traction sheave elevator, with one in a lift shaft (14) guided car (16) and with a drive machine assigned control cabinet (24), characterized by an if necessary to access the drive machine (26) and / or the control cabinet (24) temporarily locked in the elevator shaft (14) Engine room, the driving operation of the car (16) in the below or above the temporarily furnished engine room Shaft sections is unaffected. Elevator according to claim 1, characterized in that the engine room in the area of the shaft head and a top stop or in the area of the shaft pit and a bottom stop of the lift shaft (14) can be set up. Elevator according to claim 1 or 2, characterized in that the Control sequence of the car (16) with the engine room set up can be switched such that the shaft section occupied by the engine compartment can no longer be approached by the car (16). Elevator according to one of claims 1 to 3, characterized in that a device for limiting the travel path of the car (16) or Counterweight (50) with engine room set up to avoid a collision of the car (16) with the engine room is provided. Elevator, in particular traction sheave elevator, in particular according to one of claims 1 to 4, with a car (16) guided in a travel shaft (14) and with a drive machine with an associated control cabinet (24),
characterized,
that the control cabinet (24) is arranged in the elevator shaft (14) next to the carriageway of the elevator car (16) and that at least one plate (30) is provided which is used to form a walk-in platform and / or a protective roof in one of the control cabinet (24 ) assigned horizontal position can be brought. Elevator according to claim 5, characterized in that the at least a plate (30) in normal operation of the elevator (10) as a cover of the Control cabinets (24) is used. Elevator according to claim 5 or 6, characterized in that a the plate (30) in its horizontal position associated safety device (36) is intended to prevent people from falling. Elevator according to one of claims 5 to 7, characterized in that that means for electrical monitoring of one or both end positions of the Plate (30) are provided with a device for limiting the travel path the car (14) or the counterweight (50) in horizontal Position the plate (30) in connection. Device for temporarily limiting the travel path of a car or counterweight for an elevator, in particular according to one of claims 1 to 8, with a support element (62) which, in its rest position, outside the travel path of the car (16) or counterweight (50) in the region of a first guide rail (26; 54) of the elevator car (16) or counterweight (50) is arranged to be pivotable into an active position projecting into the travel path,
characterized,
that the pivoting of the support element (62) takes place parallel to or diagonally through a plane given by the first guide rail (26; 54) and a second guide rail (56) opposite the first guide rail (26; 54) and that the support element (62) assumes an essentially horizontal, worn position in the operative position. Device according to claim 9, characterized in that the support element (62) two guide rails (54, 56) in the operative position, comprises parallel profiles (62a, 62b). Apparatus according to claim 10, characterized by one on one the profiles (62a, 62b) rotatably articulated baffle plate (74) which in the horizontal Active position rests on both profiles (62a, 62b) and as an impact surface for one attached to the car (16) or counterweight (50) Buffer (52) is used.

Images