Vibration-isolated elevator system

Abstract

The present invention relates to an elevator system (2) with an elevator car (4), vibration-isolated guide rails (6a, 6b) on the shaft wall side, along which the elevator car (4) and a counterweight (7) are guided during the upward and downward movements they perform, a drive (8) with a motor (10), a traction sheave (12) and a brake, a pit structure (16) and support means (18) on which the elevator car (4) is held.In order to further reduce the transmission of structure-borne noise generated at the elevator system (2) to the building, it is proposed that the pit structure (16) has at least one connecting element (20) by which the lower ends of the guide rails (6a, 6b) are supported in the pit (14), that the connecting element (20) is connected to the guide rails (6a, 6b) and / or the pit (14) exclusively via at least one elastomeric damping element (22), and that the at least one elastomeric damping element (22) reduces vibrations emanating from the guide rails (6a, 6b) through inertial forces.

Description

[0001] The present invention relates to an elevator system comprising an elevator car, vibration-isolated guide rails on the shaft wall side along which the elevator car and a counterweight are guided during the upward and downward movements they perform, a drive with a motor, a traction sheave and a brake, a pit structure and support means on which the elevator car is held.

[0002] Operating noise from elevators in buildings is perceived as disturbing by building occupants. This noise is often not transmitted directly into the building as airborne sound, but rather the vibrations generated during operation are transferred to the building structure via the mounting points of elevator components as structure-borne vibrations. From there, these vibrations are propagated through the building structure, causing walls and ceilings to vibrate. These vibrating walls and ceilings then radiate the elevator noise into the respective rooms.

[0003] In 2019, DIN standard 8989 was published, which, if followed, ensures that minimum sound insulation requirements can be met in rooms with a volume of up to 125 m³. DIN 8989 describes the maximum permissible levels of structure-borne noise transmission. However, it does not describe how an elevator system can be decoupled to minimize noise levels without compromising the safety of elevator operation.

[0004] Document EP 2 562 121 A1 describes how the transmission of vibrations from a guide rail to a shaft wall can be reduced by using a vibration-isolated wall mounting for the guide rail of an elevator system. Similar approaches can be found in documents EP 1 491 483 A1 and DE 10 2017 009 690 A1.

[0005] To reduce the noise emanating from an elevator system in a building, it is also known to mount the drive unit on damping elements to reduce the vibrations generated by the drive. Examples of this can be found in documents DE 20 2015 105 390 U1 and EP 3 176 120 A1.

[0006] Although the measures known from the prior art are suitable to reduce the transmission of vibrations from the elevator system into the building, despite these measures, operating noises from the elevator system can still be heard in the building as structure-borne sound.

[0007] The object of the present invention is to further reduce the transmission of vibrations, in particular via structure-borne sound, from the elevator system into the building.

[0008] The problem is solved for a generic elevator system by the characterizing features of claim 1.

[0009] The present invention is based on the understanding that structure-borne noise generated at the guide rails is not effectively prevented if only the shaft wall fixings of the guide rails and the motor are vibration-isolated. The transmission of vibrations from the guide rails to building components via the connecting elements located in the shaft pit also has a significant influence on the generation of structure-borne noise. If the structure-borne noise generated at the guide rails is to be effectively reduced, vibration isolation must also be achieved in the shaft pit area via the connecting elements located there.

[0010] The shaft pit structure includes at least one connecting element that supports the lower ends of the guide rails within the shaft pit. This connecting element can be a single-piece frame, a multi-part frame, or one or more hollow profiles or angle profiles. The shaft pit is formed by the shaft base, which can be a concrete layer, for example, and the lower shaft walls, which can also be made of concrete or masonry. Other materials are also possible for constructing the shaft pit. The lower ends of the guide rails are connected to the shaft pit via this at least one connecting element, and they can be supported, in particular, on the shaft base.

[0011] The connecting element is exclusively connected to the guide rails and / or the shaft pit via at least one elastomeric damping element. The term "exclusivity" means that there are no components between the guide rails and the shaft pit that would allow for direct structure-borne sound transmission between the guide rails and the connecting element and / or the connecting element and the shaft pit. Instead, a gap is always maintained between these rigid components, which is bridged by the at least one elastomeric damping element.

[0012] At least one elastomeric damping element is made of an elastomeric material. This elastomeric material consists of dimensionally stable but elastically deformable plastics whose glass transition temperature is below the operating temperature. These plastics can deform elastically under tensile and compressive stress, but then return to their original, undeformed shape. The best-known elastomers are vulcanizates of natural and synthetic rubber, as well as silicone rubber. The elasticity of elastomers is primarily due to the ability of the coiled polymer chains to respond to tensile stress by stretching or uncoiling the chains. When a polymer is stretched by tensile stress, the chains preferentially align themselves in the direction of the stress. The elastomer is thus stretched.As soon as the tensile stress is removed or reduced, the chains resume their random rotational movement, during which they again assume the statistically determined Gaussian distribution. The chains return to their preferred coiled conformation – the elastomer contracts. The elasticity thus consists of stretching under tensile stress and contraction after the stress is released. The elastomeric material has a low natural frequency and is therefore particularly well-suited for vibration isolation. The connecting element(s) no longer have direct contact with the building-side components of the shaft pit; vibrations from the guide rails are only transmitted to the shaft pit components in a damped state.

[0013] Instead of an elastomeric damping element, other damping elements can also be used that also act as vibration isolators but are made of a different material than an elastomer. Metal cushions are one example of such a device.

[0014] The elastomeric material of the damping element can be processed as a foamed or cast elastomer blank, which is placed between adjacent components, clamped using, for example, screws, or permanently bonded to adjacent components, for example, by adhesive. The elastomeric material can also be cast into the components as a suitably thick layer of an adhesion promoter. If an elastomer blank is placed between components and clamped with screws, the screw connections should also be vibration-isolated to prevent undamped sound bridges. If, for whatever reason, an elastomeric material cannot or should not be used as the damping layer for the element, it is also possible to use a similarly acting metal cushion, metal springs, air springs, or a damping cylinder instead.

[0015] The at least one elastomeric damping element reduces vibrations emanating from the guide rails due to inertial forces. These inertial forces within the at least one elastomeric damping element arise from the oscillating movements of the guide rails, which constitute the existing vibrating system. During operation of the elevator system, the guide rails are set into vibration. Without vibration isolation, these vibrations would be transmitted to building components, which would then generate unwanted structure-borne noise. Through the direct connection of the guide rails to the at least one elastomeric damping element and / or the indirect connection of the guide rails via the connecting element to the at least one elastomeric damping element, the oscillating movements of the guide rails no longer affect the components of the pit, but rather the elastomeric material of the at least one damping element.By using the inertial forces of at least one elastomeric damping element to counteract the vibrations from the guide rails as the excitation frequency, unwanted structure-borne noise from the elevator system is reduced or completely eliminated. The at least one elastomeric damping element is designed such that its natural frequency is sufficiently lower or higher than the excitation frequency of the guide rails.

[0016] When this description refers to vibration-isolated guide rails on the shaft wall side and a vibration-isolated drive, it means that these components are not rigidly connected to the building's shaft walls or other elevator components. Instead, damping elements are present between these components and the shaft wall mounting, damping vibrations generated by the elevator system. This damping effect is achieved in particular by placing damping elements made of an elastomeric material between the elevator components and the components rigidly connected to the shaft walls for mounting purposes. These damping elements transmit vibrations acting on them to the components rigidly connected to the building structure only to a limited extent.Vibration isolation does not mean that vibrations emanating from these components must be completely absorbed by the damping elements; to reduce sound transmission, it is sufficient to dampen at least a significant proportion of the vibrations.

[0017] When this description refers to guide rails, it means not only the guide rails that guide the elevator car, but also the guide rails on which the counterweights are guided. These guide rails are also often supported in the pit by a pit structure and can transmit vibrations generated by the elevator system into the building as structure-borne noise via acoustic bridges.

[0018] By additionally isolating the guide rails against vibrations at the shaft pit structure, the transmission of structure-borne noise generated by the elevator into the building can be significantly reduced once again.

[0019] According to one embodiment of the invention, the elastomeric damping element is designed as a flat base arranged between the underside of the connecting element and the bottom of the shaft pit. On the one hand, the flat base provides good support for the connecting element across its surface; on the other hand, the surfaces with which the elastomeric damping element contacts the connecting element also effectively absorb vibrations from the connecting element and neutralize them through inertial forces. The flat base can consist of a foamed or cast elastomer blank, or an elastomeric material can be cast into the connecting element before the connecting element is installed in the shaft assembly. The elastomeric damping element is sufficiently dimensioned in terms of material and thickness to achieve the desired degree of vibration isolation.The flat substrate can be glued, screwed, or directly cast into a component on one or both sides.

[0020] According to one embodiment of the invention, the fastening means with which the elastomeric damping element is attached in the shaft pit are provided with vibration isolation. The fastening means can be, for example, fastening bolts or screws mounted in elastomeric bushings. The vibration isolation is achieved by means of an elastomeric material arranged between the fastening means and the shaft pit to which the respective fastening means is connected, and / or between the elastomeric damping element and the connecting element.

[0021] According to one embodiment of the invention, the lower ends of the guide rails are connected to a receptacle comprising a support plate connected to the connecting element. At least one elastomeric damping element is arranged between the underside of the support plate and the top side of the connecting element, through which the receptacle and the connecting element are exclusively connected. The connection of the lower ends of the guide rails to a respective or common receptacle can be achieved by a positive fit via a corresponding shaping of the respective components. However, it is also possible to connect these components using fasteners such as screws.The receptacle can be designed as an angle profile, with the guide rails attached to its upward-projecting leg and the horizontal leg resting on the connecting element forming the support plate, which connects the receptacle to the connecting element. The support plate preferably has a surface area several times larger than the end face of the guide rails. This larger surface area significantly increases the bearing surface over which the guide rails are supported on the connecting element, thereby reducing the specific pressure load on the contacting surfaces. The elastomeric damping element, positioned between the underside of the support plate and the top of the connecting element, is thus subjected to less stress and can more easily generate vibration-isolating inertial forces when vibrations occur. In this way, the vibrations can be dampened more effectively.The support plate can also serve as an abutment for a bolted connection, allowing the receiver to be bolted to the floor of the shaft pit via the connecting element. A counter-element for a bolt, optionally located in the floor of the shaft pit, is advantageously also vibration-isolated to minimize the transmission of structure-borne noise from the elevator system to the building.

[0022] According to one embodiment of the invention, a torque support mounted on a shaft wall is connected to the shaft wall exclusively via at least one elastomeric damping element. The torque support's function is to absorb the differential torque of the drive and driven components and transfer it to a supporting structure. In this solution, the shaft wall serves as the supporting structure. However, this inherently creates the problem that vibrations from the elevator system can be transmitted via the torque support to the shaft wall and thus to the building. The additional vibration isolation of the torque support reduces or completely prevents the transmission of structure-borne noise from the motor or other components of the elevator system to building components.In addition to the measures described above, further technical potential from the vibration isolation of the torque support is utilized to further reduce the transmission of vibrations from the elevator system to the building. It may suffice if at least one elastomeric damping element is interposed between the torque support and the shaft wall, its inertial forces damping the vibrations transmitted from the motor to the torque support. The above statements regarding the exclusive connection of the connecting element to the guide rails and / or the pit via at least one elastomeric damping element apply accordingly to the exclusivity of the connection between the torque support and the shaft wall. Similarly, the above statements regarding the elastomeric damping element connecting the torque support to the shaft wall also apply accordingly.

[0023] According to one embodiment of the invention, the elastomeric damping element, by means of which the torque support is supported on the shaft wall, is part of a separate bracket in which the elastomeric damping element constitutes the sole connection between a wall-side and a torque-support-side component of the bracket. This elastomeric damping element can be arranged at the connection point between the motor and the torque support, between the torque support and a mounting bracket, between the torque support and a guide rail, and / or between the torque support and a shaft wall. It is particularly advantageous if the torque support is damped when attached to the motor and is itself damped when attached to the wall, thus providing double insulation / damping.Double insulation can also be achieved by attaching this torque support to a guide rail that is dampened and mounted to the wall.

[0024] The separate bracket can be designed to reduce or completely neutralize vibrations transmitted from the torque arm to the separate bracket through inertial forces.

[0025] According to one embodiment of the invention, a torque support is supported on at least one vibration-isolated guide rail. This solution is advantageous when the transmission of vibrations from the elevator system to building components is to be avoided. By supporting the torque support on components of the elevator system that are already vibration-isolated from the building, separate vibration isolation of the torque support can be dispensed with.

[0026] According to one embodiment of the invention, the support element is connected to fastening elements on the shaft side, drive side, and / or car side exclusively via at least one elastomeric damping element. For example, a mounting bracket as a mounting plate can serve as a shaft-side fastening element, a mounting plate on the drive or a mounting bracket for the drive can serve as a drive-side fastening element, and a mounting plate connected to the car can serve as a car-side fastening element. In the case of a 1:1 suspension of the car on the support elements, the support element can be a mounting plate attached to the car.In a suspension system with a gear ratio, such as a 2:1 configuration, the mounting element can also consist of one or more pulleys connected to the elevator car, around which the suspension element rotates. Even with such a solution, it can be advantageous to dampen vibrations between the suspension element and the elevator car. By additionally isolating the suspension element, the transmission of structure-borne noise from the suspension element to other components of the elevator system or parts of the building is reduced or completely prevented. Thus, in addition to the measures described above, further technical potential from the vibration isolation of the suspension element is utilized to further reduce the transmission of vibrations from the elevator system to the building.The above statements regarding the exclusivity of the connection of the load-bearing suspension to the guide rails and / or the shaft pit via at least one elastomeric damping element apply accordingly to the exclusivity of the connection of the load-bearing suspension. The above statements regarding the elastomeric damping element also apply accordingly to the elastomeric damping element connecting the load-bearing suspension to the shaft wall.

[0027] According to one embodiment of the invention, a mounting plate is used as a fastening means. This plate comprises two layers of a solid material, which are connected to each other exclusively via at least one elastomeric damping element. The two layers of solid material can, for example, consist of two steel plates. An elastomeric damping element is arranged between these two layers, connecting them exclusively. Vibrations from one or more support cables, which are transmitted to a first of the two layers of the mounting plate, are transferred by the first layer of the mounting plate to the elastomeric damping element. There, the introduced vibrations are reduced or completely eliminated by inertial forces, so that they are hardly or no longer transmitted to the second layer of the mounting plate.When this second layer of the mounting plate is attached to a shaft wall, the elevator car or the drive, it can no longer transmit vibrations to the corresponding components.

[0028] According to one embodiment of the invention, a foamed or cast elastomeric blank is used as the damping element, the surface of which is uneven in an unloaded state. After the elastomeric damping element is installed in the elevator system, its surface is subjected to pressure from the weight of the components of the elevator system resting on and / or adjacent to it. If the surface of the components resting on the elastomeric damping element is flat, the surface of the elastomeric damping element will experience varying loads across different areas. Due to the differently distributed compressive stresses within the damping element under load, inertial forces can build up that better compensate for acting vibrations.The uneven surfaces can be designed such that a component rests on the elastomeric damping element only on raised areas, ridges, diamond-shaped ridges, or other shaped contact surfaces that may have diamond-shaped, rib-like, grid-like, waffle-like, or other depressions. By resting a component only on partial areas of the elastomeric damping element's surface, certain frequencies can be filtered out and no longer transmitted to the elastomeric damping element.

[0029] Further features of the invention will become apparent from the claims, the figures, and the description of the figures. All features and combinations of features mentioned above in the description, as well as those subsequently mentioned in the description of the figures and / or shown in the figures alone, are usable not only in the combinations specified, but also in other combinations or on their own with the subject matter of claim 1, provided that no technical obstacles preclude this.

[0030] The invention will now be explained in more detail with reference to a preferred embodiment and the accompanying drawings.

[0031] They show: Fig. 1: a schematic view of a generic elevator system, Fig. 2: an enlarged view of a pit, Fig. 3: an enlarged view of a connecting element with an elastomeric damping element inserted into the connecting element, Fig. 4: an enlarged view of a connecting element with an elastomeric damping element placed under the connecting element, Fig. 5: an enlarged view of a guide rail receptacle, Fig. 6: an embodiment of sheet metal elements with which a torque support can be vibration-isolated, Fig. 7: another example of a support for a torque support on a shaft wall, Fig. 8: a sectional view through a support for a torque support, Fig. 9: a view of a rope anchor point on the shaft wall, Fig. 10: an example of a drive-side attachment of the suspension elements, and Fig.11: An embodiment of a mounting plate with two sheet metal plates as layers with an elastomeric damping element.

[0032] The illustrations are essentially concrete embodiments. The invention, however, is not limited to the illustrated embodiments, but can be modified in a technically competent manner to adapt it to a specific application.

[0033] Where applicable, corresponding components in all figures are designated with identical reference numerals. However, for the sake of clarity, not all components appearing multiple times are always assigned reference numerals.

[0034] In Fig. 1Figure 1 shows a schematic view of a generic elevator system 2 with an elevator car 4. Vibration-isolated guide rails 6a are arranged on the shaft wall, along which the elevator car 4 is guided during upward and downward movements. The counterweight 7 is guided in the vibration-isolated guide rails 6b. The elevator system 2 has a vibration-isolated drive 8 with a motor 10, a traction sheave 12, and a brake. A pit superstructure 16 is located in the pit 14. The elevator car 4 is held by suspension elements 18.

[0035] The Fig. 2Figure 1 shows an enlarged view of a shaft pit 14 with a shaft structure 16 arranged within it. The elevator car 2 moves up and down between the two guide rails 6a. The counterweight 7 is guided by the guide rails 6b during its upward and downward movements. The guide rails 6a and 6b are connected to the shaft pit 14 via the shaft structure 16.

[0036] The vibration isolation of the guide rails 6a and 6b in the shaft pit is explained below using the vibration isolation of guide rail 6a as an example. However, the explanations also apply accordingly to guide rail 6b.

[0037] The shaft structure 16 features a Fig. 3The enlarged illustration shows the connecting element 20, which supports the lower ends of the guide rails 6a in the shaft pit 14. The connecting element 20 consists of a sheet metal profile 21 into which a flat elastomeric damping element 22 is inserted. The guide rails 6a are supported on the flat elastomeric damping element 22 and not directly on the sheet metal profile 21. In this embodiment, the guide rails 6a are sound-insulated from the connecting element 20. In contrast to the illustrated embodiment, the flat elastomeric damping element 22 can also be placed additionally or alternatively as a support layer under the sheet metal profile 21, as shown in Fig. 4As shown, the sheet metal profile 21 then has no direct contact with the shaft floor. In this design, the connecting element 20 is soundproofed from the shaft floor. Depending on the design, the connecting element 20 is thus connected to the guide rails 6a and / or the pit 14 exclusively via at least one elastomeric damping element 22. The at least one elastomeric damping element 22 reduces vibrations emanating from the guide rails 6a due to inertial forces. By damping the vibrations in the guide rails 6a, these vibrations are not transmitted from the guide rails 6a to the components of the pit 14 during operation of the elevator system 2, and from there not to other components of the building in which the elevator system 2 is installed.

[0038] As the Fig. 4 As shown, the elastomeric damping element 22 in the embodiment shown there is designed as a flat base. In the Fig. 4 In the illustrated embodiment, the elastomeric damping element 22 is arranged between the underside of the connecting element 20 and the bottom of the shaft pit 14. The fasteners 24, with which the elastomeric damping element 22 is fastened in the shaft pit 14, are additionally provided with vibration isolation, which, however, is not shown in detail in the drawing. The vibration isolation can, for example, be designed as a block of hard rubber that is embedded in the shaft bottom and into which the screw is screwed. The hard rubber block then dampens vibrations that are transmitted from the guide rails 6a to the screw as a fastener 24 by means of inertial forces. In another embodiment, the Fig. 5 The support plate 28 shown is attached to the floor with a screw connection.

[0039] An elastomer bushing 29 is inserted as a damping element between the screw as a fastening means 24 and the support plate 28.

[0040] In the Fig. 3 In the illustrated embodiment, the lower ends of the guide rails 6a are connected to a receptacle 26. The receptacle 26 is in Fig. 5 shown in a larger view. The receptacle 26 has a support plate 28 which is connected to the connecting element 20, wherein at least one elastomeric damping element 22 is arranged between the underside of the support plate 28 and the top side of the connecting element 20, via which the receptacle 26 and the connecting element 20 are exclusively connected.

[0041] The Fig. 6 Figure 1 shows an embodiment for sheet metal elements 30a, 30b, with which a shaft wall supported by a shaft wall can be graphically represented in Fig. 6The torque support 34 (not shown) can be connected to the shaft wall exclusively via at least one elastomeric damping element 22. A first sheet metal element 30a is connected to the shaft wall, and a second sheet metal element 30b is connected to the torque support 34. The elastomeric damping element 22 is arranged between the two sheet metal elements 30a and 30b and reduces vibrations emanating from the torque support 34 due to inertial forces. In this embodiment, the elastomeric damping element 22, by which the torque support 34 is supported on the shaft wall, is part of a separate bracket 32 ​​comprising the sheet metal elements 30a and 30b and the elastomeric damping element 22. The elastomeric damping element 22 forms the sole connection between a wall-side and a torque support-side component of the bracket 32.The sheet metal elements 30a, 30b can be bonded to the elastomeric damping element 22 and / or clamped together by means of a screw connection. Alternatively, the bracket 32 ​​described above can also be used to support a torque support 34 on at least one vibration-isolated guide rail 6a, 6b.

[0042] Another possibility for directly supporting a torque support 34 is in Fig. 7 The engine-side support 36 is connected to the torque support via elastomeric damping elements 22. The transmission of engine vibrations to the shaft wall-side support 38 is prevented via the elastomeric damping elements 22. Fig. 8Figure 1 shows a cross-sectional view through an alternative support for a torque support 34. Here, too, the transmission of engine vibrations to the shaft wall-side support 38 is prevented via elastomeric damping elements 22. The cross-sectional view shows that a gap remains between the bolt 40 and the support 38, thus preventing a sound bridge between these two elements.

[0043] In addition to vibration isolation of the components of the elevator system 2 in the pit 14 and, if applicable, the torque support 34, it is of course also possible to connect the suspension of the load-bearing elements 18 on the shaft side, drive side and / or car side exclusively via at least one elastomeric damping element 22 with fastening elements 24. Figure 9Figure 1 shows a view of an example of a shaft wall-side fastening of the support elements 18. The support elements 18 are attached to a first sheet metal element 30a of a bracket 32. An elastomeric damping element 22 is arranged between the first sheet metal element 30a and a second sheet metal element 30b. This damping element dampens vibrations from the support elements 18 before they can be transmitted to the shaft wall via the fastening elements 24, and vice versa. Fig. 10Figure 1 shows an example of a drive-side mounting of the support elements 18. These are attached to a first sheet metal element 30a of a bracket 32. An elastomeric damping element 22 is arranged between the first sheet metal element 30a and a second sheet metal element 30b, which dampens the transmission of vibrations from the support elements 18 to the drive and vice versa. The bracket 32 ​​can, for example, be mounted on the guide rails 6b of the counterweight 7. Alternatively, it can also be screwed to the shaft wall.

[0044] The fastening of a component of the elevator system 2 can also be achieved, in particular, by using a mounting plate 42 which has two layers 44a, 44b of a solid material such as iron or steel, which are connected to each other exclusively via at least one elastomeric damping element 22. Such a mounting plate 42 can, for example, be used for the vibration-isolated fastening of a guide rail 6a, 6b to a shaft wall. Fig. 11 Figure 1 shows an embodiment of a mounting plate 42 with two sheet metal plates as layers 44a, 44b, between which an elastomeric damping element 22 is arranged. The mounting plate 42 can be screwed to the wall via the screw holes 48, while components of the elevator system 2 can be connected to the mounting plate 42 with the bolt 46. Reference symbol list

[0045] 2 Elevator system 4 Elevator car 6a, 6b Guide rail 7 Counterweight 8 Drive 10 Motor 12 Drive pulley 14 Pit 16 Pit structure 18 Support element 20 Connecting element 21 Sheet metal profile 22 Damping element 24 Fastening element 26 Mounting 28 Support plate 29 Elastomer bushing 30a, 30b Sheet metal element 32 Separate bracket 34 Torque support 36 Motor-side support 38 Shaft wall-side support 40 Bolt 42 Mounting plate 44a, 44b Position of a solid material 46 Bolt 48 Screw hole

Claims

1. Elevator system (2) comprising an elevator car (4), vibration-isolated guide rails (6a, 6b) on the shaft wall side, along which the elevator car (4) and a counterweight (7) are guided during their upward and downward movements, a drive (8) comprising a motor (10), a traction sheave (12) and a brake, a pit structure (16) and support elements (18) on which the elevator car (4) is held, characterized by the fact that the shaft pit structure (16) has at least one connecting element (20) by which the lower ends of the guide rails (6a, 6b) are supported in the shaft pit (14), the connecting element (20) is connected to the guide rails (6a, 6b) and / or the shaft pit (14) exclusively via at least one elastomeric damping element (22), and the at least one elastomeric damping element (22) reduces vibrations emanating from the guide rails (6a, 6b) due to inertial forces.

2. Elevator system (2) according to claim 1, characterized by the fact that the elastomeric damping element (22) is designed as a flat base which is arranged between the underside of the connecting element (20) and the bottom of the shaft pit (14).

3. Elevator system (2) according to claim 2, characterized by the fact that Fastening means (24) are provided with which the elastomeric damping element (22) is fastened in the shaft pit (14), wherein the fastening means (24) are provided with vibration isolation.

4. Elevator system (2) according to claim 1, characterized by the fact that the lower ends of the guide rails (6a, 6b) are connected to a receptacle (26) which has a support plate (28) which is connected to the connecting element (20), wherein at least one elastomeric damping element (22) is arranged between the underside of the support plate (28) and the top of the connecting element (20), via which the receptacle (26) and the connecting element (20) are exclusively connected.

5. Elevator system (2) according to one of the preceding claims, characterized by the fact that a torque support (34) supported on a shaft wall is connected to the shaft wall exclusively via at least one elastomeric damping element (22).

6. Elevator system (2) according to claim 5, characterized by the fact that the elastomeric damping element (22), by means of which the torque support (34) is supported on the shaft wall, is part of a separate bracket (32), in which the elastomeric damping element (22) represents the exclusive connection between a wall-side and a torque-support-side component of the bracket (32).

7. Elevator system (2) according to any one of the preceding claims 1 - 4, characterized by the fact that a torque support (34) is supported on at least one vibration-isolated guide rail (6a, 6b).

8. Elevator system (2) according to one of the preceding claims, characterized by the fact thatthe load-bearing element (18) is connected on the shaft side, drive side and / or car side exclusively via at least one elastomeric damping element (22) to fastening elements (24).

9. Elevator system (2) according to claim 8, characterized by the fact that A mounting plate (42) is used to fasten a component of the elevator system 2, which has two layers (44a, 44b) of a solid material that are connected to each other exclusively via at least one elastomeric damping element (22).

10. Elevator system (2) according to one of the preceding claims, characterized by the fact that as an elastomeric damping element (22) a foamed or cast elastomeric blank is used, the surface of which is uneven in an unloaded state.

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