Sliding shoe, counterweight equipped with sliding shoe and elevator installation

Abstract

A sliding shoe for guiding a counterweight (3) comprises a one-piece guide element (11) made of synthetic material, which has an engagement member (13) extending in the longitudinal direction (z), which engages form-fittingly into a recess (21) in a yoke (7, 8) of a counterweight frame (6). The guide element (11) also comprises a flange (14) adjoining the engagement member, for embedding the recess (21) and for forming a stop for fixing the guide element (11) in place.

Description

Technical Field

[0001] This invention relates to a sliding guide shoe. It also relates to a counterweight equipped with such a sliding guide shoe. Finally, this invention relates to an elevator device. Background Technology

[0002] Elevator equipment used for transporting people and goods includes an elevator car that can move up and down in an elevator shaft. The elevator car can be moved in the vertical elevator shaft by means of a drive unit and a hoisting device, for example, in the form of a support rope or support belt. In addition to the elevator car, elevator equipment typically includes at least one counterweight that moves in the opposite direction within the elevator shaft. In this case, the elevator car and at least one counterweight run in guide rails. Guide shoes are typically used to guide the elevator car and counterweight, and these guide shoes can be implemented as sliding guide shoes or roller guide shoes.

[0003] Known and common are sliding guide shoes, for example, those comprising a multi-piece construction including a guide shoe housing and an insert, as known from DE20315915U1. Such or similar sliding guide shoes are fixed to the vertical carrier of the counterweight frame. For example, EP3199483A1 shows such a structure having a counterweight frame and a sliding guide shoe mounted thereon. WO2014 / 027399A1 relates to another type of counterweight equipped with sliding guide shoes for guiding purposes. Summary of the Invention

[0004] One object of the present invention is to avoid known disadvantages, and in particular to provide a sliding guide shoe for guiding an elevator car or elevator counterweight, which has the advantages of simple structure and better operability in assembly.

[0005] According to the invention, this and other objectives are achieved by a sliding guide shoe. A sliding guide shoe for elevator equipment used to transport people or goods guides an elevator car or counterweight along a guide rail extending in the direction of travel or longitudinally. The sliding guide shoe includes a guide element having guide channels. The guide channels of the guide element are designed complementaryly to the guide area of ​​the guide rail and extend longitudinally. The guide area, formed, for example, by a tab-like protrusion of the guide rail or a spring of the guide rail, can be accommodated in the guide channel. Thus, the guide channel defines a sliding surface that can slide in contact with the guide rail in the guide area when the sliding guide shoe is installed in the elevator or prepared for operation.

[0006] The sliding guide shoe can be constructed from the guide elements described. However, it is also conceivable that, in addition to the guide elements, the guide shoe may include additional components, such as a lubrication device for applying oil to the guide rail.

[0007] Elevator cars or counterweights may have a carrier structure. The carrier structure for supporting the elevator car may be, for example, a so-called fall arrestor frame or car frame. For counterweights, the carrier structure may be a counterweight frame. The carrier structure may have at least one recess for mounting a sliding guide shoe. The guide element has a longitudinally extending engagement member that can be face-locked into the recess of the carrier structure. Furthermore, the guide element has a longitudinally engaged flange that fits into the recess and forms a stop for longitudinally securing the guide element in place. The flange should be understood as a flange-like raised portion that forms a stop surface that, when the guide element is inserted into or placed into the recess, is longitudinally supported on the carrier structure. This guide element with engagement member and flange is easy to assemble. The guide element can be easily and precisely assembled onto the carrier structure.

[0008] In a first embodiment, the guide element can be designed as a one-piece molded body made of a synthetic material. Here, a rigid synthetic material is preferred as the material for the molded body. Thus, the aforementioned components of the guide element—namely, the guide channel, the connecting member, and the flange—are integrally connected to each other. This synthetic material molded body can be produced at low cost. Another advantage is that the sliding guide shoe does not need to include any additional components; in particular, large metal parts, such as the guide shoe housing, are unnecessary. The guide element can be designed as a disposable component and can be easily and cost-effectively replaced at the end of its service life.

[0009] The guide element is particularly preferably an injection-molded part. Such a guide element can be manufactured easily and with high precision.

[0010] To facilitate the manipulation of the guide element during assembly, it is advantageous to design the engaging member for locking with the profile of the recess (which is advantageously designed to open the guide area for guidance) as a retaining pin with a shell-like construction, the retaining pin being inserted into the recess. For this purpose, the engaging member can be specifically constructed as a retaining pin with a shell-like construction to lock with the profile of the U-shaped recess. If the recess is a circular U-shaped recess, the retaining pin can have a semi-circular outer contour that matches the circular U-shaped recess. Then, in relation to this semi-circular outer contour, the flange can be a radially outwardly erect flange segment.

[0011] The guide element may also have a carrier segment for securing the guide element to the carrier structure. Thanks to the carrier segment, it can be ensured that the sliding guide shoe can be directly connected to the elevator car or counterweight without additional parts (such as housing parts).

[0012] The fixed segment is particularly preferably formed on the flange in the radial direction or perpendicular to the longitudinal direction. Therefore, the fixed segment can also be a component of a one-piece synthetic material molded body.

[0013] The guide element may have only one flange. However, it is also possible to have two flanges. In this case, the guide element may have two opposing flanges in a longitudinal relationship, such that when the guide element is inserted into the recess, these two flanges surround the carrier element from two longitudinal sides. The distance between the flanges, or more precisely, the distance between the stop surfaces of the flanges, will correspond to the thickness of the carrier structure in the recessed region.

[0014] The fixing segment can have holes for screws to screw the guide element onto the carrier structure. This allows for quick and effortless fixing of the guide element, which is inserted into or onto the carrier structure via the recess. Alternatively, multiple screws can be used instead of a single screw to secure the guide element to the carrier structure.

[0015] The distance between the hole and the bottom of the guide channel or the adjacent area of ​​the sliding surface of the guide channel is preferably less than 10 cm, more preferably less than 8 cm, and particularly preferably less than 5 cm. In this way, a guide element with a slim and compact design is achieved.

[0016] Especially when the guiding element is made of a composite material, it is advantageous that the hole is a through-hole into which a metal bushing is inserted or otherwise arranged. The metal bushing can be connected to the composite material component, for example, by spray casting onto the metal bushing. The metal bushing ensures reinforcement of the connection area for reliable and durable positioning.

[0017] Another embodiment involves a guide element divided into segments in a longitudinal direction. The guide element may have two segments, with an engaging member corresponding to the first segment and a flange corresponding to the second segment. Thus, a stop surface formed by the flange can define a dividing line or plane between the two segments. Here, the second segment may also include a head extending longitudinally. Thanks to the head, a sufficiently long guide channel can be provided to achieve optimal guiding performance. Therefore, the guide channel corresponds to or is contained within both segments. For optimal guiding, the lengths of the two segments can preferably be approximately the same (measured longitudinally). The length L2 of the second segment is preferably greater than the length of the first segment.

[0018] Another aspect of the invention relates to a counterweight for elevator equipment, the counterweight having a counterweight frame as a carrier structure for the counterweight. The counterweight frame is used to hold the counterweight elements. In the counterweight frame, counterweight elements in the form of metal plates or stacked concrete counterweights can be arranged and, in particular, fixed. The counterweight frame includes at least one yoke, particularly an upper yoke and a lower yoke, and a carrier connecting the upper and lower yokes. In a position ready for operation, the yoke runs horizontally, with the upper and lower yokes ending the counterweight frame upwards and downwards; the aforementioned carrier extends vertically. The counterweight also has at least one sliding guide shoe, particularly the sliding guide shoe described above, wherein the sliding guide shoe can be guided along a guide area implemented as a protrusion or spring, designed to guide the counterweight. Here, the corresponding yoke has a horizontal plate on which at least one sliding guide shoe is fixed. The horizontal yoke plate has at least one recess into which the guide rail extends to form a groove-shaped guide, and the sliding guide shoe is received in the recess in a profile-locking manner. Due to this structure, no additional device is required to ensure groove guiding performance. The sliding guide shoe can be easily mounted on the counterweight frame.

[0019] The yoke plate preferably has at least two recesses for receiving sliding guide shoes, thereby enabling guidance from both sides. Particularly preferably, both the upper and lower yokes have two sliding guide shoes received in the recesses.

[0020] At least one of these recesses can be designed in a U-shape to accommodate the sliding guide shoe in a profile-locking manner, thereby achieving an open-design recess. The sliding guide shoe may have a guiding element with a circular groove bottom having a guide channel. For example, such a circular groove bottom is particularly suitable for guiding guide areas formed by bending in guide rails designed as hollow profiles.

[0021] Two recesses can be provided for each yoke to be fitted or already fitted onto the sliding guide shoe. These recesses point opposite to each other, with one recess located in the corresponding yoke plate and the other in an extension mounted on the yoke plate via a detachable fixing mechanism. Without these extensions, i.e., before the extensions are installed onto the counterweight frame, the counterweight frame can be opened sufficiently to load the counterweight elements. After loading is complete, the extensions are placed on the counterweight frame and secured to it, for example, by screws.

[0022] Finally, another aspect of the invention relates to an elevator system having an elevator car and a counterweight connected to the elevator car via a hoist and movable in the opposite direction to the elevator car, wherein the counterweight is the counterweight described above, and in particular, is provided with the aforementioned sliding guide shoes for guiding the counterweight on guide rails. The elevator system may have one counterweight for each elevator car or optionally two counterweights.

[0023] Elevator equipment may have only one counterweight for each elevator car. Typically, such elevator equipment has only one drive unit, such as a traction sheave drive, which drives the hoisting device, causing the elevator car and counterweight to move in opposite directions. The elevator car can move vertically up and down in the elevator shaft between two guide rails that act as linear guides. Similarly, the counterweight can be guided on two guide rails. Therefore, elevator equipment may include a total of four guide rails; the term "car guide rail" is known and commonly used for the car, while "counterweight guide rail" is known and commonly used for the counterweight. Alternative elevator equipment may include guide rails that act as linear guides for both the elevator car and the counterweight. Attached Figure Description

[0024] Other advantages and individual features will become apparent from the following description and accompanying drawings of the embodiments. Wherein:

[0025] Figure 1 A schematic diagram of the elevator equipment is shown;

[0026] Figure 2 Showing according to Figure 1 A perspective view of the counterweight of the elevator equipment;

[0027] Figure 3 A greatly simplified plan view of an elevator system with an elevator car and two counterweights is shown.

[0028] Figure 4 Showing the use of according to Figure 1 A perspective view of the counterweight of the elevator equipment;

[0029] Figure 5 An enlarged perspective view of the yoke plate is shown. Figure 4 The two sliding guide shoes of the counterweight are mounted on the yoke plate;

[0030] Figure 6 A detailed view of the yoke plate is shown, with one of the sliding guide shoes for the counterweight. Figure 5 Details A);

[0031] Figure 7 Show Figure 6 An exploded perspective view of the structure in the image, and

[0032] Figure 8 Showing the basis from different angles Figure 5 The guiding element of the sliding guide shoe. Detailed Implementation

[0033] Figure 1 The diagram shows an elevator system, indicated by 1, used in a multi-story building. The building has an elevator shaft 28, and elevator cars 2, used to transport people or goods, can move vertically up and down to various floors. The direction of travel is indicated by arrow z. Figure 1 The elevator equipment 1 is designed as a traction elevator equipment, which has a counterweight 3 that can move in the opposite direction to the elevator car 2, and the hoist 25 is designed to carry ropes or belts and is guided below the elevator car 2 and around the traction sheave.

[0034] The elevator shaft 28 also contains guide rails 29 for the elevator car and guide rails 5 for the counterweight, which guide either the elevator car 2 or the counterweight 3. The counterweight 3 is equipped with a novel guiding scheme with special sliding guide shoes (not shown here), which will be described in detail below.

[0035] from Figure 1 As can be seen, the counterweight 3 is directly fixed to the end of the lifting device indicated by 25. However, it is also conceivable that the counterweight has one or, if necessary, multiple steering rollers through which it can be suspended.

[0036] Figure 2 Show Figure 1 An embodiment of the counterweight 3 of the elevator equipment 1 of the type shown. This counterweight 3 can be used in the elevator equipment 1, which includes one counterweight 3 for each elevator car. The counterweight is positioned between two guide rails 5.

[0037] In this embodiment, the guide rail 5 for counterweight 3 is formed, for example, from a T-profile. For example, the T-profile can be a steel profile produced by rolling. Steel profiles produced by extrusion molding or profiles formed by bending metal sheets can also be used as guide rails. However, the guide rail can also be made of other metallic materials (e.g., aluminum) and have other profile shapes.

[0038] The counterweight 3 includes a counterweight frame 6, which serves as the carrier structure for the counterweight. Counterweight elements 19 are arranged within and fixed to the counterweight frame 6. The rectangular counterweight frame 6 has a horizontally extending upper yoke 7 and a lower yoke 8, wherein the upper yoke 7 and lower yoke 8 converge upwards and downwards, respectively, to end the counterweight frame. The counterweight frame 6 also has a carrier 9, designed as a side plate, connecting the upper and lower yokes. The vertical carrier 9 may be U-shaped in cross-section to accommodate the counterweight elements 19, which are fitted between two U-shaped profiles with their open sides facing each other, and thus secured to the same profile. To secure the counterweight frame 6 to a lifting device, for example, rope locks or other rope end fasteners may be provided.

[0039] Each yoke 7, 8 has two parallel, vertically extending yoke members 26 and a horizontal yoke plate 20 connecting the two yoke members. Recesses 21 are arranged in the yoke plate 20 of the counterweight frame 6. It can be seen that the U-shaped recesses 21 are arranged on the end sides of the yoke plate 20, wherein the recesses 21 point away from each other.

[0040] The sliding guide shoes used to guide the counterweight can be mounted onto the counterweight frame 6 through these recesses 21. Figure 2 A single sliding guide shoe 10 for insertion into the recess 21 can be seen. The sliding guide shoe 10 has a guide element 11 with an engaging member 13 that can be profile-locked into the recess 21 in the yoke 20 of the counterweight frame 6. The guide element 11 also includes a flange 14 that engages with the engaging member 13. When the guide element 11 is inserted and the engaging member 13 is thus profile-locked into the recess 21 of the yoke 20, the flange 14 supports the yoke 20. The flange 14 forms a stop for securing the guide element in place in the longitudinal z-direction. Structural details of the sliding guide shoe 10 are shown in [reference needed]. Figures 6 to 8 The sliding guide shoes are designed in a similar manner, except that the shape of the guide channels is different.

[0041] The yoke 20 and its recess 21 are designed such that the corresponding guide rail 5 extends into the corresponding recess 21, thereby achieving emergency guidance when the sliding guide shoe 10 fails due to an accident.

[0042] Figure 3 The elevator equipment 1 shown has two counterweights 3 and 4, as well as (not shown) lifting devices and drive units. The two drive units (e.g., traction sheave drive units) drive the corresponding lifting devices (e.g., belts, cables), thus causing the car 2 and the two counterweights 3 and 4 to move in opposite directions. Each drive unit corresponds to one of the counterweights 3 and 4. To guide the elevator car 2 and the counterweights 3 and 4, two guide rails 5 are provided on both sides of the elevator car.

[0043] The elevator device 1 shown in this embodiment has the advantage of a special guide rail 5, with the elevator car 2 and corresponding counterweights 3 and 4 using the guide rail as linear guides. The guide rail 5 is made of a single rolled profile. The elevator device 1 is designed as a so-called "front-pocket elevator". More details about front-pocket elevators and car guidance, as well as counterweights with shared guide rails, can be found in WO2020 / 127303A1 and WO2020 / 127787A1.

[0044] The corresponding counterweights 3 and 4 are equipped with the aforementioned new type of (shown schematically here) sliding guide shoe 10 for guiding the counterweights 3 and 4 along the corresponding guide rails 5. The sliding guide shoe 10 will be described in detail below.

[0045] As from Figure 4As can be seen, the counterweight 3 of the elevator equipment 1 has a counterweight frame 6, which has two vertical carriers 9 designed as side shells, two additional vertical carriers 33, and an upper yoke 7 and a lower yoke 8. Multiple counterweight elements 19 are arranged in the counterweight frame 6. The vertical carriers 9 and 33, together with the vertical frame portions 7 and 8, form a enclosure for the counterweight elements 19. In this embodiment, there are two different types of counterweight elements, consisting of concrete elements designated 19 and steel plate elements designated 19'.

[0046] Two sliding guide shoes 10 correspond to each of yokes 7 and 8, respectively. One sliding guide shoe 10 is directly connected to yoke plate 20. The other sliding guide shoe is designated 10'. This sliding guide shoe 10' is designed the same as the right sliding guide shoe 10; however, this sliding guide shoe is connected to yoke plate 20 via an extension 30. The extension 30 is screwed onto yoke plate 20. The extension 30 allows the counterweight to be easily filled with counterweight element 19.

[0047] Figure 5 The upper yoke 7 of the counterweight frame 6 is shown. However, the lower yoke 8 has the same design. An extension 30 with a recess that engages with the sliding guide shoe profile is detachably fixed to the yoke plate, for example, by means of three screws.

[0048] Other details of the sliding guide shoe 10 and how the sliding guide shoe 10 is connected to the yoke 20 Figure 6 As shown in the figure, the guide element 11 includes an engaging member 13 extending in the longitudinal direction z. Therefore, the engaging member 13 extends in the same direction as the guide channel 12. The engaging member 13 is reliably received in a complementary recess 21 in the yoke plate 20. A flange 14 engaging with the engaging member 13 fits into the recess 21 and forms a stop in relation to the longitudinal direction z for securing the guide element 11 in place.

[0049] As can be seen, the engaging member 13 is a retaining pin with a shell-like structure, which can be inserted into or fitted into the recess 21. The engaging member 13 includes a semi-circular working surface extending in the z-direction. The engaging member 13 is fitted into the recess 21 through the working surface. The flange 14 is a flange-like raised portion forming a stop in the z-direction. The corresponding stop surface of the stop is located on a plane extending orthogonally to the z-direction. A fixing segment 15 formed perpendicular to the longitudinal direction is provided on the flange 14 for fixing the guide element 11 to the counterweight carrier structure by means of screws 17. The head 31 also connects to the flange 14 in relation to the longitudinal direction z. The head 31 extends the guide channel 12 upward or toward the side opposite to the engaging member.

[0050] As from Figure 7As can be seen, the guide element 11 is divided into segments in relation to the longitudinal direction z and essentially consists of two segments: a first segment corresponds to the engaging member 13; the other segment, or second segment, corresponds to the flange 14, to which the head 31 also belongs. Therefore, the stop surface forms a dividing line or dividing plane between the two segments. These two segments can... Figure 7 The lengths, labeled L1 and L2, are used to identify the second segment. In this embodiment, the length L2 of the second segment is slightly greater than the length L1 of the first segment.

[0051] exist Figure 7 It can also be seen that the carrier segment 15 has a hole 16 for screws 17, used to screw the guide element 11 onto the yoke plate 20. A metal sleeve (not shown) can be inserted into or is inserted into the hole 16, which is designed as a through hole, thereby reinforcing the fixing area. For screwing, a threaded hole 34 is provided on the yoke plate 20. Of course, a structure with a nut can also be chosen instead of the threaded hole. Figure 7 The recess 21 can also be seen in its construction. The recess 21 has a U-shaped design.

[0052] Other structural details of the design of the sliding guide shoe 10 can be found in Figure 8 This is obtained from the above. It is clear from this that the advantage of the guide element 11 lies in its compact design. Obviously, the hole 16 is very close to the bottom 18 of the guide channel 12, typically less than 5 cm. This distance is denoted by d.

[0053] from Figure 7 China, especially from Figure 8 It can be clearly seen that the engaging member 13, extending in the longitudinal z-direction, is designed as a retaining pin, which can be inserted into the recess 21 of the yoke plate 20. The retaining pin obviously has a segmented cylindrical outer contour and two opposing, planar, parallel side surfaces that form the working surface through which the engaging member 13 is fitted into the recess 21. The cylindrical, segmented cylindrical outer contour forms the aforementioned semi-circular working surface of the engaging member 13, extending in the z-direction.

[0054] Figure 8 It is also shown that the guide channel 12 has a circular groove bottom 18 for accommodating the front of the guide rail 5. Figure 3 The guide area shown.

[0055] The guide element 11 is designed as a one-piece molded body made of synthetic material. Here, the guide element 11 is designed, for example, as a component produced by milling and other cutting methods. However, the guide element 11 may preferably be an injection-molded part of synthetic material.

[0056] The guide element 11 is preferably designed rigidly and is made of a synthetic material known for its low coefficient of friction. For example, synthetic materials such as UHMW-PE (ultra-high molecular weight polyethylene) or PTFE (polytetrafluoroethylene) can be used for the guide element 11. Of course, other synthetic materials such as PA (polyamide), PA6 (Perlon®), POM (polyoxymethylene), PEEK (polyetheretherketone), PAS (polyarylsulfone), PUR (polyurethane), PP (polypropylene), or PVDF (polyvinylidene fluoride) can also be used.

[0057] The counterweight frame 6 forms a carrier structure for supporting the counterweight 3, and more precisely, a carrier structure for supporting the counterweight elements of the counterweight 3. The sliding guide shoe 10 itself can also be used to guide the elevator car 2. For this purpose, a carrier structure, such as a so-called fall arrestor frame, must be adapted accordingly to support the car body. Such a fall arrestor frame or other carrier structure can also have plate-like load-bearing members, such as a horizontal yoke of the aforementioned type with recesses into which the guide element 11 can be inserted to form the sliding guide shoe 10.

Claims

1. A sliding guide shoe for guiding an elevator car (2) or counterweight (3) along a guide rail (5) extending in the longitudinal direction (z), said sliding guide shoe having a guide element (11) including a guide groove (12), characterized in that, The guide element (11) has a connecting member (13) extending in the longitudinal direction (z), the connecting member being capable of engaging in a profile-locking manner into a recess (21) of the carrier structure of the elevator car (2) or counterweight (3), and the guide element has a flange (14) engaging in the longitudinal direction with the connecting member (13) for fitting into the recess (21) and for forming a stop for fixing the guide element (11) in place in the longitudinal direction, the guide element (11) being divided into segments about the longitudinal direction (z), wherein the connecting member (13) corresponds to a first segment and the flange (14) corresponds to a second segment, wherein the second segment also includes a head (31) extending in the longitudinal direction (z).

2. The sliding guide shoe according to claim 1, characterized in that, The guide element (11) is designed as a one-piece molded body made of synthetic material.

3. The sliding guide shoe according to claim 2, characterized in that, The guide element (11) is an injection molded part.

4. The sliding guide shoe according to any one of claims 1 to 3, characterized in that, The connecting member (13) is a stop pin with a shell-like structure, which is inserted into the recess (21).

5. The sliding guide shoe according to any one of claims 1 to 3, characterized in that, The guide element (11) has a fixed segment (15) for fixing the guide element (11) to the carrier structure.

6. The sliding guide shoe according to claim 5, characterized in that, The fixed segment (15) on the flange (14) is formed at right angles to the longitudinal direction (z).

7. The sliding guide shoe according to claim 5, characterized in that, The fixed segment (15) has a hole (16) for screws (17) to screw the guide element (11) onto the carrier structure.

8. The sliding guide shoe according to claim 7, characterized in that, The distance between the hole (16) and the bottom (18) of the guide channel (12) is less than 5 cm.

9. The sliding guide shoe according to claim 7, characterized in that, The hole (16) is a through hole into which a metal sleeve can be inserted or inserted.

10. The sliding guide shoe according to any one of claims 1 to 3, characterized in that, The length of the second segment (L2) is equal to or greater than the length of the first segment (L1).

11. A counterweight (3) for elevator equipment, comprising: A counterweight frame (6) for holding the counterweight element (19), wherein the counterweight frame (6) includes at least one yoke (7, 8). At least one sliding guide shoe (10) according to any one of claims 1 to 10, the sliding guide shoe being able to be guided along the guide rail (5), The corresponding yoke (7, 8) has a horizontal yoke plate (20), at least one sliding guide shoe (10) is fixed on the yoke plate, characterized in that the yoke plate (20) has at least one recess (21), a guide rail (5) extends into the at least one recess to form an emergency guide, and the sliding guide shoe (10) is fitted in the at least one recess in a locking manner.

12. The counterweight according to claim 11, characterized in that, The counterweight frame (6) includes an upper yoke (7) and a lower yoke (8).

13. The counterweight according to claim 11, characterized in that, At least one recess (21) in the yoke (20) is U-shaped, and the sliding guide shoe (10) has a guide element (11) having a guide channel (12) including a circular groove bottom (18).

14. The counterweight according to claim 11, 12 or 13, characterized in that, Each yoke is provided with two recesses (21), wherein the recesses (21) point opposite to each other, one of the recesses (21) is arranged in a corresponding yoke plate (20), and the other recess is arranged on an extension (30) fixed to the yoke plate (20) by a detachable fixing mechanism.

15. An elevator device having a counterweight, wherein, The counterweight is the counterweight according to any one of claims 11 to 14, and the counterweight is equipped with a sliding guide shoe (10) according to any one of claims 1 to 10 for guiding the counterweight on the guide rail (5).

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