CN111479768B

CN111479768B - Travel unit for an elevator system

Info

Publication number: CN111479768B
Application number: CN201880080046.5A
Authority: CN
Inventors: 菲利普·甘彻
Original assignee: ThyssenKrupp Elevator Innovation and Operations GmbH
Current assignee: TK Elevator Innovation and Operations GmbH
Priority date: 2017-12-12
Filing date: 2018-12-03
Publication date: 2022-03-18
Anticipated expiration: 2038-12-03
Also published as: DE102017222482A1; WO2019115269A1; CN111479768A

Abstract

The invention relates to a travel unit (1) for an elevator system (50), comprising: a carriage (6) having a runner (5) for traveling along at least one guide rail (56-58) of an elevator system (50); a car bracket (7) held by the bracket (6); and a cargo container (8) removably mounted to the car bracket (7).

Description

Travel unit for an elevator system

Technical Field

The present invention relates to a car device for an elevator system.

Background

The invention is applicable to elevator systems having at least one traveling unit, in particular a plurality of traveling units, which can be displaced in an elevator shaft via guide rails. At least one stationary first guide rail is fixedly arranged in the elevator hoistway and oriented in a first, in particular vertical, direction; at least one stationary second guide rail is oriented in a second, in particular horizontal, direction; at least one third guide rail is secured to the rotating platform and is translatable between an orientation in the first direction and an orientation in the second direction, the third guide rail being rotatable relative to the hoistway. Such systems are described essentially in WO 2015/144781 a1, DE 102015218025 a1 and german patent application 102016211997.4. In the case of a system as described in the unpublished patent application DE 102017202845.9, the travel unit is in the form of a car arrangement, which comprises a car support and an elevator car. The car support is fastened to a bracket which can be displaced on the guide rail. The car support comprises a horizontal leg on which the elevator car rests. An elevator car is provided for transporting passengers.

A substantial advantage of such an elevator system, in which a plurality of traveling units are displaced in the elevator shaft, is that the least possible elevator shaft needs to be provided in the building. It is desirable to provide a sufficiently high transport capacity by means of only two elevator shafts, so that no additional elevator shafts have to be provided even in large buildings. The problem still remains here of how to achieve transport of goods in a building when no separate goods elevator is provided. The object of the present invention is to provide an answer to this problem, in particular to circumvent the need for a separate cargo elevator system.

Disclosure of Invention

This object is achieved by a travel unit, an elevator system and a method according to the invention.

The traveling unit for an elevator system according to the present invention includes:

a carriage having a runner, the carriage for traveling along at least one guide rail of an elevator system;

a car bracket held on the bracket; and

a cargo container removably mounted on the car frame.

The invention thus makes it possible to transport cargo containers using elevators as required. Instead of the car for transporting passengers, a cargo container is mounted on the car support as required, by means of which cargo is transported. This makes it possible to dispense with the provision of a separate freight elevator in the building.

Here, the travel unit to which the goods container is mounted does not comprise in particular an elevator car. In this respect, the present application is distinguished from the introduction of a cargo container into an elevator car of an elevator system.

The use of separate cargo containers makes it possible to quickly load travelling units with a large cargo space. In the case of an elevator system with a plurality of travel units per elevator shaft, a stationary travel unit can bring the entire elevator system to a standstill. In this respect, a short holding time of the travel unit at the floor is required. In this case, the use of a removable cargo container makes short holding times possible, since the cargo container is removed in its entirety and filled and emptied outside the elevator shaft. The cargo container without an elevator car enables better space utilization than a container which in turn is introduced into the (passenger) elevator car itself.

To remove the cargo container, it may be desirable for the opening in the hoistway to be larger than the hoistway opening doors typically present for transferring passengers. Thus, the hoistway opening door may have a two-stage form, and selectively opens a small opening (for transferring passengers) or opens a large opening (for removing cargo containers).

Alternatively, the cargo container may be removed and the passengers may be transferred through separate openings, respectively: a first, smaller opening for transferring passengers is arranged on the first hoistway wall; a second, larger opening for removing the cargo container is arranged on the second shaft wall, wherein the two shaft walls are angled relative to each other or arranged opposite each other.

In a refinement, the car frame has a horizontal leg, in particular two horizontal legs, on which the cargo container rests. This makes it possible to easily remove the cargo container from the car support.

In particular, the cargo container does not comprise doors and/or operating devices for passengers to board and disembark, in particular for triggering emergency stops and/or emergency calls, in the interior space. In this respect, the cargo container should not be identical to an elevator car for transporting passengers.

The elevator system according to the invention comprises at least one guide rail and at least one travel unit of the above-mentioned type.

In one refinement, the elevator system comprises a loading device which is configured to transfer the goods container between a transport position on the car support and a floor position in the floor aisle. The loading device may have a multi-part form. In the transport position, the cargo container is located on the car support; at the floor level, the cargo container is located outside the elevator shaft in the floor level of the building. In the transport position, the cargo container can be displaced in the elevator hoistway in a collision-free manner in particular with respect to the attachment part of the elevator hoistway.

In one refinement, the loading device is configured to:

-lifting the cargo container in order to transfer the cargo container out of the transport position;

and/or

-lowering the cargo container in order to transfer the cargo container to the transport position.

In this case the loading device can assume the function of a fork lift.

In one refinement, the car frame has two horizontal legs, on which the cargo container rests at least indirectly. An intermediate space is formed between the horizontal legs, wherein the loading device is configured to at least partially project into the intermediate space during the transfer, in particular in order to lift the cargo container starting from the intermediate space.

In particular, the invention is applicable in the case of an elevator system which also comprises:

at least one stationary first guide rail, which is fixedly oriented in a first, in particular vertical, direction;

at least one stationary second guide rail, which is fixedly oriented in a second, in particular horizontal, direction;

at least one rotatable third guide rail secured to the rotating platform and capable of shifting between an orientation in the first direction and an orientation in the second direction.

In one refinement, the elevator system comprises a plurality of travel units, each travel unit having a passenger car for transporting passengers. In this case, the travelling unit with the goods container is at least temporarily arranged in the same vertical elevator shaft as one of the travelling units with the passenger car. Here, the travel unit with the passenger car and the travel unit with the cargo container can be transferred between a first elevator shaft and a second elevator shaft separate from the first elevator shaft by means of at least one conversion unit.

The advantage of this improvement is that both the transport of passengers and the transport of goods are achieved in a multi-car elevator system. A separate freight elevator is no longer required, which in turn saves resources. The method according to the invention for operating an elevator system comprises the following method steps:

displacing the loaded cargo container in the elevator hoistway;

removing the loaded cargo container from the elevator hoistway;

moving the cargo container out of the elevator hoistway;

unloading the cargo container outside the elevator shaft.

In one refinement, the removing comprises the steps of:

lifting a cargo container inside an elevator hoistway;

moving the cargo container out of the elevator hoistway;

the cargo container is lowered outside the elevator shaft.

In a refinement, prior to removal, a securing mechanism is released, by means of which the goods container is secured to the travel unit.

In a refinement, the loading device is introduced at least partially into the intermediate space of the car support before removal, in particular before lifting, and the cargo container is then removed and, in particular, lifted by the loading device.

The advantages and further possibilities of improvement mentioned in connection with the device also apply to the method and vice versa.

Drawings

The invention is explained in more detail below with reference to the drawings, in which, respectively, schematically:

fig. 1 presents in a perspective view an elevator system with a travel unit according to the invention;

fig. 2 shows a car support of the elevator system according to fig. 1 in a perspective view;

fig. 3-7 schematically show in side view the elevator system according to fig. 1 at various stages during transfer of the cargo container of the traveling unit from the transport position to the floor position;

fig. 8 presents another elevator system according to the invention.

Detailed Description

Fig. 1 shows components of an elevator system 50. The elevator system 50 comprises a stationary first guide rail 56, along which first guide rail 56 the travel unit 1 can be guided by means of a rucksack-type mounting. The first guide rail 56 is vertically oriented in the first direction z and enables the traveling unit 1 to be displaced between different floors. Such an arrangement of first guide rails 56 is arranged parallel to each other in two parallel hoistways 52', 52", along which arrangement of first guide rails 56 the travelling unit 1 can be guided by means of a backpack-type mounting. The traveling unit 1 in one elevator hoistway 52' can move on the respective first guide rail 56 largely independently and unimpeded by the traveling unit 1 in the other elevator hoistway 52 ".

The elevator system 50 also comprises a stationary second guide rail 57, along which second guide rail 57 the travel unit 1 can be guided by means of a rucksack-type mounting. The second guide rail 57 is horizontally oriented in the second direction y and enables the traveling unit 1 to be displaced within the floor. The second guide rail 57 also connects the first guide rails 56 of the two hoistways 52', 52 "to each other. The second guide rail 57 thus also serves to switch the travelling unit 1 between the two hoistways 52', 52 "in order to perform, for example, modern bucket elevator operations.

The travelling unit 1 can be transferred from the first guide rail 56 to the second guide rail 57 and vice versa via the third guide rail 58. The third guide rail 58 is rotatable with respect to a rotation axis a perpendicular to the y-z plane spanned by the first guide rail 56 and the second guide rail 57.

All of the guide rails 56, 57, 58 are at least indirectly secured to at least one hoistway wall of the elevator hoistway 52. The hoistway wall defines a fixed reference system for the elevator hoistway. The term "hoistway wall" also includes the fixed frame structure of the elevator hoistway, which carries the guide rails. A rotatable third guide rail 58 is secured to the rotating platform 53. The rotating platform 53 is mounted by means of a platform rotation bearing (not shown).

Such systems are described essentially in WO 2015/144781 a1, DE 102015218025.5 and german patent application 102016211997.4.

Fig. 2 shows a car support 7 as a component of the travel unit 1 according to fig. 1. The car support 7 is described in the unpublished patent application DE 102017202845.9. The car support 7 is fastened to a bracket (not shown) which can be displaced on the guide rail 56. The car frame 7 has two horizontal legs 11, between which an intermediate space 12 is formed. In DE 102017202845.9, the elevator car is placed on a horizontal leg for transporting passengers.

In the context of the present invention, the travel unit 1 comprises a cargo container 8, the cargo container 8 being arranged on the car support 7 or removed from the car support 7 as required, as explained with reference to fig. 3 to 7. Here, as will become clearer below, a fork-lift design of the car support (visible in fig. 2) is advantageous.

Fig. 3 shows the travel unit 1 with the car support 7, the goods container 8 mounted on the car support 7 and the bracket 6. The carriage 6 comprises guide wheels 5, by means of which guide wheels 5 the carriage 6 is guided on a guide rail (not shown). A pivot bearing 4 is arranged between the bracket 6 and the car support 7, with the result that the car support 7 can pivot about a horizontal pivot axis a relative to the bracket 6. Thus, the orientation of the car support 7 can be kept constant independently of the orientation of the bracket 6, which is necessary in particular in the case of a change in the direction of travel between a vertical direction of travel and a horizontal direction of travel.

In a refinement, the car support can be formed in one piece with the bracket and/or rotationally fixed, in particular in the case of elevator systems in which the travel unit can be displaced in only one direction.

In fig. 3, the cargo container 8 is in the transport position. In this case, the cargo container 8 is arranged on the car frame 7 such that the traveling unit 1 can travel in the elevator shaft 52 without causing collision of the cargo container 8 with attached components in the elevator shaft 52. Via the securing mechanism 3, the goods container 8 is secured relative to the car support 7 during the displacement. A locking system is suitable for this purpose.

The cargo containers 8 are transferred from the transport position to the floor position as follows:

first, the loading device 14 located at the floor aisle 13 is at least partially introduced into the intermediate space 12 between the horizontal supports 11 (fig. 4). This is done in a similar way as the movement of the fork carrier into the euro-tray. Here, the loading device 14 is in a lowered state so as to move into the intermediate space 12 without hindrance. The loading device 14 may be a forklift.

Subsequently or simultaneously, the securing mechanism 3 is released. In this way, it is firstly possible to remove the cargo container 8 from the car support 7, which is not possible with a stable securing mechanism. First, the cargo container 8 is maintained in the transport position.

After releasing the securing mechanism 3 and introducing the loading device 14 at least partially into the intermediate space 12, the loading device 14 is transferred to the raised state. As a result, the cargo container 8 is lifted and released from the car frame 7 (fig. 5).

After lifting the cargo container 8, the loading device is moved out of the elevator shaft 52 (fig. 6). The cargo container 8 is thus transported out of the elevator shaft 52 and into the floor.

After transporting the cargo container 8 out of the elevator hoistway 52, the loading device 14 is transferred to a lowered state (fig. 7). The cargo container 8 is now located in a floor position at the floor aisle 13.

Conversely, the goods containers 8 are transferred in a similar manner from the floor position to the transport position.

Fig. 8 shows a modification of the elevator system 50 according to the invention. The elevator system 50 comprises at least two or more elevator hoistways 52', 52 "and 52'", wherein respective vertical guide rails 56 are arranged for guiding the traveling unit 1. Via the connecting guide rails, in particular the horizontal guide rails 57, the travel unit 1 can be transferred from one elevator shaft into another elevator shaft using the transfer unit 53.

In the elevator system 50, a plurality of travel units 1 having passenger cars 15 and at least one travel unit 1 having a cargo container 8 are provided. Thus, the passenger car 15 and the cargo container 8 share the same elevator system 50, and also at least temporarily the same elevator hoistway.

List of reference numerals

1 traveling unit

3 stabilizing mechanism

4-rotation bearing

5 guide wheel

6 bracket

7 car support

8 goods container

9 bearing seat

10 vertical supporting leg

11 horizontal supporting leg

12 intermediate space

13 floor aisle

14 Loading device

15 passenger car

50 elevator system

53 conversion unit

56-58 guide rail

53 conversion unit

Axis of rotation A

x, y, z first direction, second direction, third direction

Claims

1. An elevator system (50), comprising:

at least one guide rail (56-58),

at least one travel unit (1) having a passenger car (15), the passenger car (15) being used for moving passengers and traveling along the at least one guide rail (56-58);

at least one travel unit (1) comprising a cargo container (8), the travel unit further comprising:

a carriage (6) having a runner (5), the carriage (6) for traveling along at least one guide rail (56-58) of an elevator system (50);

a car support (7) retained on the bracket (6), the cargo receptacle (8) removably mounted on the car support (7).

2. Elevator system (50) according to claim 1,

the car support (7) has a horizontal leg (11) on which the cargo container (8) is arranged.

3. The elevator system (50) of claim 1,

wherein the cargo container does not comprise a door for passengers to board or disembark, and/or

No operating devices are present in the interior space for triggering an emergency stop and/or an emergency call.

4. The elevator system of claim 3, comprising:

a loading device (14) configured to transfer the cargo container (8) between a transport position on the car support (7) and a floor position in a floor aisle (13).

5. The elevator system according to claim 4,

wherein the loading device (14) is configured to-lift the cargo container (8) in order to transfer the cargo container (8) out of the transport position;

and/or

-lowering the cargo container (8) in order to transfer the cargo container (8) to the transport position.

6. The elevator system according to claim 5,

wherein the car support has two horizontal legs (11) on which the cargo container (8) is at least indirectly arranged, wherein an intermediate space (12) is formed between the horizontal legs (11),

wherein the loading device (14) is configured to at least partially project into the intermediate space (12) during the transfer in order to lift the cargo container (8) starting from the intermediate space (12).

7. The elevator system (50) of claim 1, comprising:

at least one stationary first guide rail (56) fixedly oriented in a first direction (z);

at least one stationary second guide rail (57) fixedly oriented in a second direction (y);

at least one rotatable third guide rail (58) fastened to a rotating platform (53) and transferable between an orientation in the first direction (z) and an orientation in the second direction (y).

8. The elevator system (50) of claim 1, comprising:

a plurality of travel units (1) each having a passenger car (15) for transporting passengers,

wherein the elevator system is configured as

Such that the travelling unit (1) with a cargo container (8) is at least temporarily arranged in the same vertical elevator hoistway (52 "') as one of the travelling units with a passenger car (15).

9. The elevator system (50) of claim 8,

it is characterized in that the preparation method is characterized in that,

the elevator system (50) is configured to

So that the travelling unit (1) with a passenger car (15) and the travelling unit (1) with a cargo container (8) can be transferred between a first elevator shaft (52') and a second elevator shaft (52', 52) separate from the first elevator shaft by means of at least one transfer unit (53)

A rotary bearing (4) arranged between the bracket (6) and the car support (7) such that the car support (7) can pivot relative to the bracket (6) about a horizontal axis of rotation.

10. Method for operating an elevator system according to one of the preceding claims, comprising the method steps of:

displacing the loaded cargo container (8) in the elevator hoistway;

removing the loaded cargo container (8) from the elevator hoistway (52);

moving the cargo container (8) out of the elevator hoistway (52);

unloading the cargo container (8) outside the elevator hoistway (52).

11. The method of claim 10, wherein the removing comprises:

-lifting the cargo container (8) inside the elevator hoistway (52);

moving the cargo container (8) out of the elevator hoistway (52);

lowering the cargo container (8) outside the elevator hoistway (52).

12. The method of claim 11, wherein the first and second light sources are selected from the group consisting of,

wherein, prior to said removal, a securing mechanism (3) is released, by means of which the cargo container (8) is secured to the travelling unit (1).

13. The method of claim 11, wherein the first and second light sources are selected from the group consisting of,

wherein, before the removal of the goods container (8), a loading device (14) is introduced at least partially into the intermediate space (12) of the car frame (7), and then the goods container (8) is removed by means of the loading device (14).