Elevator

Abstract

An elevator comprises a car (2) having a balustrade (6) arranged on a car roof (4). The balustrade (6) has a skirting board (10), wherein the skirting board (10) is arranged on the edge of the car roof (4) and the skirting board is formed by a vertical sheet-metal part which is fastened to a car side wall (5) of the car (2). The skirting board (10) is a flat metal sheet and has a toe protection portion (11) projecting beyond the car roof (4) and a fastening portion (11) lying flat on the car side wall (5). In order to stiffen the car (2), the fastening portion (11) has a height (H) which is at least 5 cm, preferably at least 8 cm and particularly preferably at least 10 cm.

Description

[0001] 2023P00324WÖ

[0002] - 1 -

[0003] Elevator

[0004] The invention relates to an elevator. Elevators contain cabins that can be moved up and down in an elevator shaft by means of a drive unit via suspension elements, for example, in the form of cables or belts. In certain situations, such as maintenance work or inspections, it is necessary for people to be on the elevator car roof. If the width of the gap between the cabin and the adjacent shaft wall is too great, guardrails must be installed on the cabin roof to prevent falls.

[0005] As a safety measure to protect people on the cabin roof from falls, it is common practice to install guardrails on the cabin roof. The term "balustrade" is also known and commonly used for such guardrails, and this term will be used below. For example, the European standard EN81-20:2020 contains precise instructions on when balustrades are necessary, as well as detailed specifications for the design and dimensions of the cabin roof and the required balustrade.

[0006] It is an object of the present invention to avoid the disadvantages of the known and in particular to create an elevator that allows persons to remain safely on the cabin roof and whose elevator cabin is stable and simply constructed.

[0007] This problem is solved by an elevator with the features of claim 1. The elevator comprises a cabin having a cabin roof and a toe board arranged at least on one side of the cabin roof. The toe board serves to delimit the walkable area on the cabin roof and, in particular, as toe protection, so that persons or their feet are protected on the roof during any inspection runs. The toe board is arranged at the edge of the cabin roof and is formed by a vertical sheet metal part that is attached to the cabin side wall. The toe board has a toe protection section that projects beyond the cabin roof and a mounting section that lies flat against the cabin side wall.By ensuring that the mounting section of the cabin stiffens the cabin body to a height of at least 5 cm, preferably at least 8 cm, and particularly preferably at least 10 cm, a simple yet sufficiently rigid cabin can be created. The 2023P00324WÖ is located below this height.

[0008] - 2 - The vertical extension of the mounting section of the baseboard is understood. In other words, the height of the mounting section corresponds to the height of the area of ​​the baseboard that is in contact with the cabin or overlaps the cabin, as seen from the side or from a horizontal perspective. The baseboard, which consequently extends quite far downwards and is connected to the cabin side wall, can be manufactured cost-effectively by cutting it from sheet steel. Surprisingly, it has been found that this arrangement, thanks to the special baseboard, results in a generally cuboid cabin body that also meets higher requirements regarding rigidity and is particularly suitable for cabins with self-supporting cabin bodies. Thanks to this stiffening, the cabin body, comprising the cabin floor, side walls, and cabin roof, can be manufactured using lightweight construction methods.

[0009] In one embodiment, a balustrade can be arranged on at least one side of the cabin roof, and the toe board can be part of the balustrade. The balustrade serves as fall protection and can include a handrail, an intermediate rail, and the aforementioned toe board.

[0010] The baseboard can be – at least when viewed in a vertical section – a flat sheet of metal. A flat sheet of metal is understood to be a flat metal structure made from a single sheet – for example, a sheet of steel – lying on a single plane. This flat structure therefore has no bends or other protrusions outside of said plane.

[0011] It can also be advantageous if the baseboard has through-holes in the mounting section for screws, bolts, or other fasteners. Fastening via through-holes allows for a particularly rigid construction of the cabin body.

[0012] The baseboard advantageously features upper through-holes for attaching it to a roof panel of the cabin roof and lower through-holes for attaching it to the cabin side wall. The upper and lower through-holes lie, for example, on horizontal, imaginary attachment lines that are spaced apart from one another. The distance between the parallel attachment lines is at least 2 cm, preferably at least 5 cm. The roof panel may have vertically extending roof edge sections. In this case, the baseboard would be additionally attached to the corresponding roof edge section 2023P00324WÖ using screws, bolts, rivets, or other fasteners.

[0013] - 3 - connected.

[0014] Furthermore, baseboards can be provided on at least two, and preferably three, sides of the cabin roof. With three baseboards, a U-shape is formed when viewed from above.

[0015] According to one embodiment, the baseboards can be designed as a one-piece component made from a single sheet metal blank with respect to the two or three sides, wherein the two or three sides are connected to each other (in one piece) via corners created by bending or folding processes.

[0016] In another variation, short strip sections can be provided on a fourth side, which is usually the side associated with the door. These sections are integrally connected to the adjoining baseboards via corners created by bending or folding processes. These strip sections can be connected to the roof surface via horizontal tabs. The tabs serve as mounting points for screwing or other fastening methods.

[0017] They show:

[0018] Fig. 1 shows a highly simplified representation of an elevator according to the invention with a cabin in a side view, and

[0019] Fig. 2 is a perspective view of a cabin roof with baseboards for stiffening the cabin body.

[0020] Fig. 1 shows a building elevator, designated 1 in general, where Fig. 1 is a detailed view of the elevator 1, showing the upper (here, for example, right) side of a cabin 2. The building has an elevator shaft 3. The elevator 1 contains the aforementioned cabin 2, which can be moved vertically up and down in the elevator shaft 3 by means of a drive unit, for transporting persons or goods. The cabin 2 comprises a cabin body with a cabin floor, cabin side walls 5, and a cabin roof 4. The movement of the cabin 2 is effected, for example, by means of suspension elements that support the cabin 2 in a 2:1 suspension in the form of an underslung. The suspension elements, not shown, can, for example, be one or more 2023P00324WÖ

[0021] - 4 -

[0022] These could be suspension cables or belts. Of course, other suspension configurations would also be conceivable. The drive unit (also not shown) for moving cabin 2 is, for example, attached to the shaft wall marked 3 to form a machine-roomless elevator. The drive unit can have a traction sheave that rotates via an electric motor. For the sake of clarity, other elevator components, such as a counterweight connected to the cabin, guide rails for guiding the counterweight and the cabin, and control devices for starting or regulating the elevator, have been omitted from the illustration.

[0023] For maintenance work or inspection runs, the cabin roof 4 is designed to be accessible. If the gap between cabin 2 and shaft 3 exceeds a certain width, persons on the roof must be secured against falling into the shaft. In this case, a balustrade 6 is arranged on the cabin roof 4 on the side of cabin 2 facing the shaft wall of shaft 3. The balustrade 6 consists of an upper handrail 8, a middle rail 9 positioned approximately halfway up the cabin, and a baseboard 10. Two vertical posts 7 are provided as an example to support the rail 9 and the handrail 8.

[0024] On one side of the cabin roof 4 shown here, a special toe board 10 is arranged, which is positioned at the edge of the cabin roof 4 and is formed by a vertical sheet metal part that is attached to the cabin side wall 5 of the cabin 2. The toe board 10 has a toe guard section 11 that projects beyond the cabin roof 4 and a mounting section 11 that lies flat against the cabin side wall 5. As can be seen from Fig. 1, the toe board 10 extends far downwards, thereby stiffening the cabin body in a simple but effective manner. It is advantageous if, for stiffening the cabin body, the mounting section 11 has a height, designated H, of at least 5 cm, preferably at least 8 cm, and particularly preferably at least 10 cm. As can be seen from Fig. 1, H corresponds to the vertical extent of the mounting section 11.

[0025] The skirting board 10, viewed in a vertical section, is a flat sheet, i.e., a surface structure lying on a flat plane without bends or other profile shapes outside said plane. The skirting board 10 can be a steel sheet of sufficient thickness and can be manufactured, for example, by punching or other sheet metal processing methods. 2023P00324WÖ

[0026] - 5 -

[0027] The baseboard 10, which lies flat against the cabin side wall 5, is attached to the cabin side wall 5 by means of screws 13, 14. Bolts, rivets or other fasteners can also be used instead of screws.

[0028] Construction details for the design of a cabin roof with the previously described special baseboard 10 can be seen in Fig. 2. Fig. 2 shows cabin roof 4 without a balustrade. The cabin roof 4 thus has only the baseboard 10 as a securing element. Of course, a balustrade could also be fitted to this cabin roof 4.

[0029] The baseboard 10 has a number of through holes in the fastening section 11. The upper through holes, labeled 16, are receptacles for screws (not shown here) to fasten the baseboard 10 to a roof panel 15 of the cabin roof 4. Screws 14 are inserted into lower through holes for fastening the baseboard 10 to the cabin side wall 5. The upper and lower through holes lie on horizontal, imaginary fastening lines that are spaced apart from each other. The distance between the parallel fastening lines is at least 2 cm.

[0030] In the present embodiment, four baseboards 10, 10', 10” are provided on three sides of the cabin roof. In plan view, the baseboards 10, 10', 10” clearly form a “U” shape. The baseboards 10, 10', 10” are designed here as separate components. The open side of the cabin roof 4 shown in Fig. 2 is a cabin side in which the cabin door is provided. A drive mechanism (not shown here) for operating a sliding door can be arranged on this side of the cabin roof 4.

[0031] It would also be conceivable to design the 10, 10', 10" baseboards as a single, one-piece component from a single sheet of metal with respect to their three sides, whereby the three sides can be joined together in one piece via corners created by bending or folding processes. On a fourth side, which is usually the side associated with the door, short strip sections can be provided, which are connected to the adjoining baseboards via corners created by bending or folding processes. These strip sections can be connected to the roof surface via horizontal tabs. The tabs form mounting points for screwing or other fastening. 2023P00324WÖ

[0032] - 6 -

[0033] The cabin roof 4 has a roof panel 15 with roof edge sections extending vertically to the sides. The baseboards 10, 10' and 10” are each connected to the roof edge sections by screws and further to the cabin side walls by means of screws 14.

Claims

2023P00324WÖ - 7 - Patent claims 1. Elevator with a cabin (2) having a cabin roof (4) and a footboard (10) arranged at least on one side of the cabin roof (4), wherein the footboard (10) is arranged at the edge of the cabin roof (4) and the footboard is formed by a vertical sheet metal part which is attached to the cabin side wall (5) of the cabin (2), wherein the footboard (10) is jointed over a fastening section (11) lying flat on the cabin side wall (5) which has a height (H) of at least 5 cm, preferably at least 8 cm and particularly preferably at least 10 cm for stiffening the cabin (2).

2. Elevator according to claim 1, characterized in that a balustrade (6) is arranged on at least one side of the cabin roof (4) and the footboard (10) is part of the balustrade (6).

3. Elevator according to claim 1 or 2, characterized in that the baseboard (10) is a flat sheet.

4. Elevator according to one of claims 1 to 3, characterized in that the baseboard (10) has receptacles for screws, bolts or other fastening means in the form of through holes (16).

5. Elevator according to claim 4, characterized in that the footboard (10) has upper through holes (16) for attaching the footboard (10) to a roof panel (15) of the cabin roof (4) and lower through holes for attaching the footboard (10) to the cabin side wall (5).

6. Elevator according to one of claims 1 to 5, characterized in that footboards (10, 10', 10”) are provided on at least two and preferably three sides of the cabin roof (4).

7. Elevator according to claim 6, characterized in that the baseboard (10) is designed as a one-piece component with respect to the two or three sides, wherein the two or three sides are connected to each other via corners created by bending or folding processes.

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