CN117222591A - Elevator system and method - Google Patents
Elevator system and method Download PDFInfo
- Publication number
- CN117222591A CN117222591A CN202180097740.XA CN202180097740A CN117222591A CN 117222591 A CN117222591 A CN 117222591A CN 202180097740 A CN202180097740 A CN 202180097740A CN 117222591 A CN117222591 A CN 117222591A
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- elevator car
- floor
- elevator
- height
- rolling
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- 238000000034 method Methods 0.000 title claims description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 39
- 238000010276 construction Methods 0.000 claims description 19
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Elevator Control (AREA)
Abstract
The invention relates to an elevator system (1), comprising: a hoistway (3), an elevator car (2) arranged in the hoistway, and an elevator control (6) controlling the elevator car (2) to move vertically in the hoistway (3) between landings (4) of a building (16). In order to obtain an elevator system which is very suitable for transporting people and goods, the floor of the elevator car (2) is provided with at least a first and a second roller (7) which are rotatably suspended in the elevator car for rotation about an axis of rotation (8), the axis of rotation (8) being parallel to the door opening (9) of the elevator car to provide a rolling floor surface (10), and a floor section comprising one or more floor elements (11) which are movable between a loading position, in which the floor elements (11) are aligned on top of the rolling floor surface (10), and a transport position, in which the rolling floor (10) surface is exposed in the elevator car (2).
Description
Technical Field
The present invention relates to an elevator system and a method of operating an elevator system, and more particularly to a multi-purpose elevator system.
Background
The challenge with conventional elevators is that the elevator car provided is usually optimized for transporting people. However, in some cases, for example during the construction of a building, it is also necessary to transport heavy goods to the upper part of the building.
Some buildings are provided with separate elevator cars for transporting people and separate elevator cars for transporting goods. However, for practical reasons, this is not the case for all buildings.
Thus, in some installations the same elevator car used for transporting personnel is also required for transporting goods. When such a need arises, a general problem is how to be able to bring heavy goods into and out of the elevator car without damaging the elevator car (which makes the elevator car no longer look tidy and good for the transportation personnel).
Disclosure of Invention
It is an object of the invention to solve the above-mentioned drawbacks and to provide an elevator system that is very suitable for use in transporting both people and goods. This object is achieved by an elevator system according to independent claim 1 and a method according to independent claim 12.
The invention relates to the use of an elevator car, wherein the floor of the elevator car is provided with at least a first and a second rotatably suspended roller providing a rolling floor surface, and the floor has a floor section consisting of one or more floor elements which are movable between a loading position, in which the floor elements are aligned on top of the rolling floor surface, and a transport position, in which the rolling floor surface is exposed, which elevator car is excellent for use by people and goods.
Preferred embodiments of the invention are disclosed in the dependent claims.
Drawings
The invention will be described in more detail hereinafter by way of example and with reference to the accompanying drawings, in which:
figure 1 shows an elevator car with a floor element in a freight transport position,
fig. 2 presents the elevator car of fig. 1 with the floor element in the passenger-carrying position, fig. 3-5 presents a second embodiment of the elevator car, and
fig. 6 shows a flow chart of a method.
Detailed Description
Fig. 1 shows a simplified side view of an elevator system 1 with an elevator car 2, which elevator car 2 is arranged to move vertically in a hoistway 3 between landings 4 of a building 16. The elevator car is moved by a hoisting machine 5 controlled by an elevator control 6. The hoisting machine 5 moves the elevator car 2 and the counterweight 19 in the hoistway 3 with ropes 18. For simplicity, not all details and elements involved in moving the elevator car are shown in fig. 1 and 2. An alternative is to use a similar solution as shown in fig. 5.
The floor 20 of the elevator car 2 is provided with at least a first and a second roller 7, the first and second roller 7 being rotatably suspended in the elevator car 2 for rotation about the axis of rotation 8. In order to ensure easy loading and unloading, in the example shown the axis of rotation 8 is parallel to the door opening 9 of the elevator car 2, whereby heavy objects can be pushed into the elevator car directly from the door opening 9 on the rollers 7.
In the example shown, as an example, it is assumed that the number of rollers 7 is greater than 2, so that a major part of the bottom area of the elevator car is provided with rollers 7. The rollers may be rotatably suspended at the bottom of the elevator car or alternatively on the side walls 17 of the elevator car. Regardless of the number of rollers 7, the uppermost portions of the rollers located uppermost at each instant together provide a rolling surface 10 at the plane indicated by the dashed line 10. The rolling surface 10 bears heavy objects in the freight transport position, which are pushed in or out of the elevator car 2 on rollers.
The rolling surface 10 provided by the rollers 7 has the advantage that when loading or unloading goods into the elevator car 2, the goods can slide along the rolling surface due to the rotation of the rollers 7. This significantly simplifies the loading and unloading of heavy goods.
Since the transportation of a person requires a stable base on which the person stands, the elevator car 2 is provided with a floor section comprising one or more floor elements 11, the one or more floor elements 11 being movable between a load-bearing position, in which the one or more floor elements are aligned on top of the rolling floor surface 10 and provide a stationary floor surface, and a transport position, in which the rolling floor surface 10 is exposed.
Fig. 1 shows one or more floor elements 11 in a transport position, in which the elevator car is optimized for transporting goods, and fig. 2 shows one or more floor elements 11 in a loading position, in which one or more floor elements 11 are aligned on top of the rolling floor surface 10 and provide a stationary floor surface for loading the weight of a person standing thereon.
In the example shown, it is assumed by way of example that the elevator car 2 is provided with two floor elements 11, which floor elements 11 are movable between a loading position and a transport position by rotation about a pivot point 12. In this case each floor element 11 is attached to the elevator car by a pivot point, respectively, preferably near the opposite side wall of the elevator car. The proximity of the side walls 17 is advantageous because in this case the area of the rolling surface 10 becomes as large as possible in the transport position. The pivot points 12 allow each floor element 11 to be lifted from a horizontal carrying position shown in fig. 2 to an upright vertical transport position shown in fig. 1. In this case, each floor element is positioned in a vertical position along the side wall 17 of the elevator car, whereby the rolling surface 10 is exposed between the two floor elements. Of course, in case only one floor element is used, a similar solution can be used. In this case, however, the single floor element will extend to a greater height along the side wall 17 of the elevator car 2, which makes the elevator floor element heavier and more awkward to move between the transport and loading positions. The pivot point 12 may be realized by means of a hinge, for example.
Alternatively, or in addition to using a hinge as pivot point 12, which facilitates manual movement of the floor elements between the loading and transport positions, the elevator car may be provided with a drive unit 13 (or drive units), such as an electric motor, a hydraulic motor or a hydraulic cylinder, or a pneumatic motor or a pneumatic cylinder, which may be used to move one or more floor elements 11 between the loading and transport positions. In this case the control panel of the elevator car 2 can be used to control the movement of one or more floor elements 11 by using electric, hydraulic or pneumatic power, for example.
Yet another alternative for moving one or more floor elements 11 to the transport position is to remove these elements completely from the elevator car 2 to the elevator landing 4. In this case no pivot point is needed, but instead the elevator car may be provided with attachment points for attaching one or more floor elements in place with screws if needed, e.g. when one or more floor elements 11 are in the loading position.
In the example shown in fig. 1 and 2, the elevator car 2 is provided with a sensor 14, the sensor 14 providing an indication to the elevator control 6 about the position of one or more floor elements 11. In this way the elevator control obtains information when one or more floor elements 11 are in the transport position and when they are in the load-bearing position. This information is useful because it may be advantageous to stop the elevator car at different heights in the hoistway 3 relative to the landing 4, depending on the position of one or more floor elements 11.
As can be seen from fig. 1, when one or more floor elements 11 are in the transport position, the elevator control 6 has stopped the elevator car at a level in the hoistway 3 where the rolling surface 10 is located at a distance D above the upper surface of the landing 4. This is advantageous because the load transported to the elevator car on the trolley with wheels can easily be transferred directly from the trolley to the rolling surface. According to an embodiment, in the transport position the elevator car 2 preferably stops at a height such that the rolling floor surface 10 is at the same height as the upper surface of the landing 4 or above the upper surface of the landing 4.
Accordingly, it can be seen from fig. 2 that when one or more floor elements 11 are in the passenger-carrying position, in other words ready to receive passengers, the elevator control 6 has stopped the elevator car 2 at a level in the hoistway 3 at which the upper surface of one or more floor elements 11 is at the same level as the upper surface of the landing 4.
Thus, when also considering the thickness of one or more floor elements 11 laid on top of the rolling floor surface 10 in fig. 2, it is clear that the elevator control 6 is configured to stop the elevator car 2 at a higher position relative to the landing 4 when one or more floor elements 11 are in the transport position than when one or more floor elements 11 are in the loading position.
Since the need to transport weights is usually greatest when building a building, the construction time modifications of the elevator car shown in fig. 1 and 2 can be used only during the construction time of the building. Thus, for the construction time of a building, the elevator car 2 can be arranged in a mixed mode, wherein the rolling floor surface 10 and the floor element or elements 11 have been arranged to the floor 20 of the elevator car. At this stage the elevator car is well suited for transporting goods and passengers, depending on whether one or more floor elements 11 are in the passenger-carrying position shown in fig. 1 or in the transport position shown in fig. 2. However, this hybrid mode may no longer be required once the construction time modification is no longer needed when the building is completed. At this stage the elevator car can be set in a person transport mode by removing the rollers providing the rolling floor surface 10 and the floor element 11. Thus, the floor 20 of the elevator car may be exposed and possibly provided with a new coating for more permanent transport of passengers. At this stage, if necessary, when the elevator car 2 stops on the landing, the elevator control 6 can be set to a new mode to ensure that the upper surface of the floor 20 is at the same height as the upper surface of the landing 4 in the hoistway.
Fig. 3 to 5 show a second embodiment of an elevator car 2'. The second embodiment is very similar to the embodiment explained in connection with fig. 1 to 2. Therefore, in the following, the embodiments of fig. 3 to 5 will be explained mainly by indicating differences.
In fig. 3, for the construction time of the building, the elevator car is set to a mixed mode, for example, as a result of which the elevator car is provided with rollers 7 providing a rolling surface 10 and one or more floor elements 11, which can be moved between a cargo-carrying position (shown in fig. 3) and a passenger-carrying position, as shown and explained in connection with fig. 1 and 2.
However, in fig. 4, as an example, it is assumed that the construction of the building has ended (for example), so that the construction time modification using the hybrid mode is no longer required. Thus, the elevator car 2' has been set in a person transport mode by removing the rolling floor surface 10 and the one or more floor elements 11 from the elevator car 2' to expose the floor 20 of the elevator car 2'. Possibly, the floor 20 has been provided with a new surface coating to make it suitable and neat for passenger transport.
In the embodiment of fig. 3-5 the elevator car is additionally provided with a height-adjustable roof construction to obtain an increased internal height, which is well suited for loading long or tall objects 15 'into the elevator car 2'.
As can be seen in fig. 3, an object 15' above the level of the door opening 9' in the elevator car 2' can be easily loaded onto the rolling floor surface by tilting at the door and then turned to an upright position. Thereafter, the object 15 'can slide deeper into the elevator car 2' on the rolling surface.
When comparing fig. 3 and fig. 4, which show the same elevator car 2', it can be observed that in fig. 3 the internal height of the elevator car is higher than in fig. 4.
There are at least two different ways to provide a height adjustable roof construction. A first alternative is to provide a separate roof element 21 'which can be attached to the elevator car 2' at least two alternative height positions. This has been shown by way of example in fig. 3. The roof element 21 'has attachment holes 22' at two different vertical heights so that bolts 23 'can protrude through the holes 22' at a selected height and attach the roof element 21 'to the wall of the elevator car 2' at a desired height position. The bolts and holes are naturally only one example of means suitable for providing a height adjustment for a single roof element 21'. Alternatively, a mechanism may be utilized that attaches the roof element to the elevator car and moves the roof element vertically, e.g., when the lever is pulled.
Another alternative to providing a height adjustable roof construction is to utilize two different roof elements. In this alternative, the first roof element 21 'shown in fig. 3, which provides the elevator car 2' with increased internal height, is replaced by the second roof element 21″ shown in fig. 4 when the increased internal height is no longer needed. Furthermore, the attachment of the second roof element 21″ can be realized, for example, with bolts 23'.
As is clear from fig. 3 and 4, the modification of the construction time for the elevator car 2' can be implemented by setting the elevator car in a mixed mode when a building is being constructed or when heavy and/or large-sized goods are to be transported for some other reason. In this case the rolling floor surface 10, the floor element or elements 11 and the increased internal height may be provided with an adjustable roof construction. Fig. 5 shows an example of how lifting is performed with the hoisting machine 5 and the ropes 18 in more detail. This approach can be used for the embodiments of fig. 1-2 and the embodiments of fig. 3-4.
As can be seen from fig. 5, the ropes 18 are led via the pulleys 24 'and the hoisting machine 5 in such a way that the elevator car 2' is suspended from below. This leaves the upper part of the elevator car free, so that a height-adjustable roof construction can be achieved.
Fig. 6 is a flow chart of a method for operating an elevator system. The method may be implemented for the embodiments of fig. 1 to 2 or for the embodiments of fig. 3 to 5.
In step a, the elevator car is set to a hybrid mode, e.g. during the construction time of a building. This includes providing a floor of an elevator car having a rolling floor surface, and providing an elevator car having a floor section including one or more floor elements that are movable between a load-bearing position in which the floor elements are aligned on top of the rolling floor surface and a transport position in which the rolling floor surface is exposed in the elevator car.
Step B is not necessary in all implementations. However, in case an increased internal height is required during construction, setting the elevator car in mixed mode may also comprise step B. In this case the internal height of the elevator car is adjusted to an increased internal height. This may be achieved, for example, as explained in connection with fig. 3 to 5.
In step C, the elevator car is set to the personnel mode as soon as no construction time modification is needed anymore. This includes removing the rolling floor surface and one or more floor elements from the elevator car to expose the floor of the elevator car.
Step D is not necessary in all implementations. However, if the internal height of the elevator car has been increased in step B, the internal height of the elevator car can be adjusted to a lower height in step D.
It should be understood that the foregoing description and drawings are only illustrative of the invention. It will be apparent to those skilled in the art that variations and modifications of the present invention can be made without departing from the scope of the invention.
Claims (15)
1. An elevator system (1, 1') comprising:
a hoistway (3),
an elevator car (2, 2') arranged in the hoistway, and
an elevator control (6) for controlling the vertical movement of the elevator cars (2, 2') in the hoistway (3) between landings (4) of a building (16), characterized in that,
the floor (20) of the elevator car (2, 2 ') is provided with at least a first and a second roller (7) for providing a rolling floor surface (10), which first and second rollers are rotatably suspended in the elevator car for rotation about an axis of rotation (8) parallel to the door opening (9, 9') of the elevator car, and
-floor section comprising one or more floor elements (11) which are movable between a carrying position, in which the floor elements (11) are aligned on top of the rolling floor surface (10) and provide a stationary floor surface, and a transport position, in which the rolling floor surface (10) is exposed in the elevator car (2, 2').
2. Elevator system according to claim 1, wherein the one or more floor elements (11) are movable between the loading position and the transport position by rotation about a pivot point (12).
3. Elevator system according to claim 2, wherein the pivot point (12) is arranged close to a wall (17) of the elevator car (2, 2').
4. An elevator system according to claim 2 or 3, wherein the pivot point (12) is provided by a hinge.
5. Elevator system according to any of claims 2-4, wherein the elevator car (2, 2') is provided with a drive unit (13) for rotating the one or more floor elements (11) about the pivot point (12).
6. Elevator system according to claim 5, wherein the drive unit (13) rotates the one or more floor elements (11) about the pivot point (12) by means of electric, hydraulic or pneumatic power.
7. The elevator system according to any one of claims 1 to 6, wherein
The elevator car (2, 2') is provided with a sensor (14) which provides an indication to the elevator control (6) about the position of the one or more floor elements (11) and
the elevator control is configured to control stopping of the elevator car (2, 2') at different heights relative to a landing (4) of the hoistway (3) depending on whether the one or more floor elements (11) are at the loading position or at the transport position.
8. The elevator system of claim 7, wherein
The elevator control device (6) is configured to: stopping the elevator car (2, 2') at a higher position relative to the landing (4) when the one or more floor elements (11) are in the transport position than when the one or more floor elements (11) are in the loading position.
9. Elevator system according to any of claims 1-8, wherein the elevator control (6) controls the elevator car (2, 2') to stop at a height at which the upper surface of the rolling floor surface(s) (10) is at the same height as the upper surface of the landing (4) when the floor element(s) (11) are in the loading position.
10. Elevator system according to any of claims 1-9, wherein the elevator control (6) controls the elevator car (2, 2') to stop at a height at which the rolling floor surface (10) is at the same height as the upper surface of the landing (4) or above the upper surface of the landing (4) when the one or more floor elements (11) are at the transport position.
11. Elevator system according to any of claims 1-10, wherein the elevator car (2 ') is provided with a height-adjustable roof construction, wherein the internal height in the elevator car (2') can be adjusted by attaching a single roof element (21 ') at least two selectable height positions or by replacing a first roof element (21') with a second roof element (21 ") providing a different internal height than the first roof element.
12. A method for operating an elevator system, the method comprising:
-setting (a) the elevator car into a hybrid mode by providing the floor (20) of the elevator car (2, 2 ') with a rolling floor surface (10), and by providing the elevator car with a floor section comprising one or more floor elements (11), the one or more floor elements (11) being movable between a bearing position, in which the floor elements (11) are aligned on top of the rolling floor surface (10), and a transport position, in which the rolling floor surface (10) is exposed in the elevator car (2, 2'), and
-setting (C) the elevator car (2') in a person transport mode by removing the rolling floor surface (10) and the one or more floor elements (11) from the elevator car to expose the floor of the elevator car.
13. The method of claim 12, wherein setting the elevator car (2') to the hybrid mode comprises: the internal height of the elevator car (2') is adjusted (B) by means of a height-adjustable roof construction to obtain an increased internal height.
14. The method according to claim 13, wherein the height adjustment comprises attaching a single roof element (21 ') of the elevator car (2 ') to a higher of at least two alternative attachment positions or replacing a first roof element (21 ') with a second roof element (21 ") providing a different inner height than the first roof element.
15. The method according to any of claims 13-14, wherein setting (D) the elevator car (2') into the people transportation mode comprises: -adjusting the inner height of the elevator car (2') to a height lower than the increased inner height.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2021/062362 WO2022237959A1 (en) | 2021-05-10 | 2021-05-10 | An elevator system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117222591A true CN117222591A (en) | 2023-12-12 |
Family
ID=76011912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180097740.XA Pending CN117222591A (en) | 2021-05-10 | 2021-05-10 | Elevator system and method |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4337584A1 (en) |
| CN (1) | CN117222591A (en) |
| WO (1) | WO2022237959A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55132081U (en) * | 1979-03-14 | 1980-09-18 | ||
| JP2000211856A (en) * | 1999-01-25 | 2000-08-02 | Mitsubishi Electric Building Techno Service Co Ltd | Elevator car device |
| CN209127832U (en) * | 2018-08-23 | 2019-07-19 | 山东奥德堡电梯股份有限公司 | A kind of booster type cargo lift car floor |
| CN109911745B (en) * | 2019-03-29 | 2023-10-20 | 快意电梯股份有限公司 | Elevator car, cargo lift and cargo carrying method of cargo lift |
-
2021
- 2021-05-10 WO PCT/EP2021/062362 patent/WO2022237959A1/en active Application Filing
- 2021-05-10 CN CN202180097740.XA patent/CN117222591A/en active Pending
- 2021-05-10 EP EP21726588.3A patent/EP4337584A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP4337584A1 (en) | 2024-03-20 |
| WO2022237959A1 (en) | 2022-11-17 |
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