阅读说明：本技术 弹性支承元件 (Elastic support element ) 是由 诺贝特·加贝斯 托比亚斯·蒂罗勒 斯特凡·纳伯豪斯 于 2018-10-09 设计创作，主要内容包括：本发明涉及一种弹性支承元件(1),该弹性支承元件具有至少一个第一主体(11)、具有至少一个第二主体(12)、并且具有至少一个弹性体元件(10),该至少一个弹性体元件布置在该第一主体(11)与该第二主体(12)之间的力流的方向上,该弹性支承元件还具有至少一个传感器(2),该至少一个传感器被构造和布置成直接或间接地检测该第一主体(11)与该第二主体(12)之间的力流中的力。该弹性支承元件(1)的特征在于该传感器(2)包括至少一个弹性层(20)、至少一个第一电极(21)和至少一个第二电极(22),其中该弹性层(20)至少部分地布置在该第一电极(21)与该第二电极(22)之间,其中该传感器(2)布置在该第一主体(11)与该第二主体(12)之间的力流中,使得借助于该力,能够改变该两个电极(21,22)之间的距离,并且借助于这种方式,能够至少部分地检测到该力,其中该弹性层(20)包括橡胶混合物,该橡胶混合物包括作为唯一橡胶组分的至少一种硅酮橡胶、以及中空微球。(The invention relates to an elastic bearing element (1) having at least one first body (11), having at least one second body (12), and having at least one elastomer element (10) which is arranged in the direction of the force flow between the first body (11) and the second body (12), and having at least one sensor (2) which is constructed and arranged to directly or indirectly detect a force in the force flow between the first body (11) and the second body (12). The elastic bearing element (1) is characterized in that the sensor (2) comprises at least one elastic layer (20), at least one first electrode (21) and at least one second electrode (22), wherein the elastic layer (20) is arranged at least partially between the first electrode (21) and the second electrode (22), wherein the sensor (2) is arranged in a force flow between the first body (11) and the second body (12) such that by means of the force the distance between the two electrodes (21, 22) can be changed and by means of this the force can be detected at least partially, wherein the elastic layer (20) comprises a rubber mixture comprising at least one silicone rubber as the only rubber component and hollow microspheres.)

1. Elastic supporting element (1)

Having at least one first body (11),

has at least one second body (12), and

having at least one elastomer element (10) arranged in the direction of force flow between the first body (11) and the second body (12),

the elastic support element also has at least one sensor (2) which is constructed and arranged to detect directly or indirectly the force in the force flow between the first body (11) and the second body (12),

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

the sensor (2) comprises

At least one elastic layer (20),

at least one first electrode (21) and

at least one second electrode (22),

wherein the elastic layer (20) is at least partially arranged between the first electrode (21) and the second electrode (22),

wherein the sensor (2) is arranged in the force flow between the first body (11) and the second body (12) such that by means of the force the distance between the two electrodes (21, 22) can be changed and by means of which the force can be detected at least partially,

wherein the elastic layer (20) comprises a rubber mixture comprising at least one silicone rubber as the sole rubber component, and hollow microspheres.

2. Elastic support element (1) according to claim 1,

the sensor (2) is realized in a coaxial manner,

wherein the first electrode (21) is at least partially, preferably completely, cylindrically surrounded by the elastic layer (20), and

wherein the elastic layer (20) is at least partially, preferably completely, cylindrically surrounded by the second electrode (22).

3. Elastic support element (1) according to claim 1 or 2,

the first electrode (21) is realized as an electrically conductive wire consisting of a solid material or as a multi-stranded wire,

wherein the wire preferably comprises or consists of copper, aluminum, silver or gold.

4. Elastic support element (1) according to any one of the preceding claims,

the second electrode (22) is realized as an electrically conductive layer, as a film or as a woven, knitted or woven fabric,

wherein the layer preferably comprises or consists of copper, aluminum, silver or gold.

5. Elastic support element (1) according to any one of the preceding claims,

the sensor (2) further comprises at least one protective layer (23), which is preferably arranged directly on the side of at least one electrode (21, 22), preferably the second electrode (22), facing the elastomeric element (10).

6. Elastic support element (1) according to claim 5,

the protective layer (23) is realized in an electrically insulating manner.

7. Elastic support element (1) according to claim 5 or 6,

the protective layer (23) is realized in an elastic manner,

wherein the protective layer (23) preferably comprises silicone, particularly preferably consists of silicone.

8. Elastic support element (1) according to any one of claims 1 to 4,

at least one electrode (21, 22), preferably the second electrode (22), is in direct contact with the elastomeric element (10),

wherein the electrode (21, 22) preferably comprises an adhesion promoter, preferably also a viscous elastomer mixture, at least partially, preferably completely, on the side facing the elastomeric element (10), thereby creating an adhesion between the electrode (21, 22) and the elastomeric element (10).

9. Elastic support element (1) according to any one of the preceding claims,

the sensor (2) is realized in an elongated manner,

wherein the sensor (2) is at least partially arranged at least substantially transversely with respect to the direction of the force flow in the direction of its elongate extent.

10. Elastic support element (1) according to claim 9,

the sensor (2) extends at least partially, preferably completely, in a linear manner.

11. Elastic support element (1) according to claim 9 or 10,

the sensor (2) extends at least partially, preferably completely, in an annular manner.

12. Elastic support element (1) according to any one of the preceding claims,

the sensor (2) is realized in a separate manner,

wherein the first electrode (21) is realized in a continuous manner and the second electrode (22) is realized in an intermittent manner.

13. Elastic support element (1) according to any one of the preceding claims,

the sensor (2) is realized such that a change of the distance between the two electrodes (21, 22) is proportional to the force of the force flow between the first body (11) and the second body (12).

14. Elastic support element (1) according to any one of the preceding claims,

the sensor (2) is implemented such that the capacitance between the two electrodes (21, 22) is proportional to the distance between the two electrodes (21, 22).

15. Elastic support element (1) according to any one of the preceding claims,

the elastic layer (20) of the sensor (2) has at least substantially the same elasticity as the elastomer element (10).

Technical Field

The invention relates to an elastic support element according to patent claim 1.

Background

It is known to combine a load cell and a force sensor for measuring the force at the location of the resilient mounting. In addition to being mounted elastically, these sensors are arranged, for example, in parallel or in series with the force flow to be detected. Conventional commercially available sensors of this type are based on SG (strain gauge) sensor technology or on piezoelectric sensor technology, in some cases with integrated amplifiers. By way of example, a curved beam may be used on which the SG sensor elements are bonded. Alternatively, for example in the case of air springs, air pressure measurements may be taken within the air springs.

The disadvantage here is that additional components are required which have to be integrated in each case. This may lead to additional costs and requires additional installation space. In addition, it may additionally be necessary to protect the sensor from external influences.

In addition, the disadvantage in the case of SG sensor elements is that these can only detect stress or bending in a single spatial direction. This may lead to erroneous measurements if force components at least in different spatial directions occur. Eliminating this disadvantage by means of a plurality of SG sensor elements increases the complexity and cost of both the SG sensor elements themselves and the electronics for evaluating and converting the stress values and therefore also makes them more expensive.

A possible disadvantage in the case of air pressure measurements in air springs is that the air is compressible and therefore the detected pressure value may be lower than the actually applied force.

A disadvantage in the case of pressure measurement with a fluid is often the removal of air present in the system. In this case, venting the system often proves difficult, especially if the air must be removed from the system as completely as possible. The presence of air in the system in an undesirable manner can reduce the accuracy of the measurement due to its compressibility.

Disclosure of Invention

The object of the invention is to enable force measurements to be made at the location of an elastic supporting element of the type described in the introduction more easily and/or cost-effectively and/or more accurately than hitherto known. In particular, it is an object to be able to dispense with additional components, such as load cells.

According to the invention, this object is achieved by means of an elastic bearing element having the features of claim 1. Advantageous developments are specified in the dependent claims.

The invention therefore relates to an elastic bearing element having at least one first body, having at least one second body, and having at least one elastomer element which is arranged in the direction of the force flow between the first body and the second body. The elastomeric element is realized in an elastic manner, that is to say it can change its shape under the action of a force and can return to its original shape when the force is removed. Preferably, the elastomeric element comprises or is formed from a vulcanized rubber compound.

The resilient support element also includes at least one sensor constructed and arranged to directly or indirectly detect a force in a force flow between the first body and the second body. To directly detect the force, the sensor may be arranged directly between the two bodies in the force flow. For indirect detection of the force, the sensor may be arranged outside the force flow, wherein the force may be transferred to the sensor, for example, by a fluid arranged in the force flow. The two bodies are in each case configured to be connected in a fixed manner to the further body, so that force transmission can be effected by the elastomer element, wherein dynamic force transmission can be damped by the elastic properties of the elastomer element. The two bodies are preferably realized in a rigid manner, in particular made of metal. The two bodies may also be referred to as stop elements.

The elastic support element is characterized in that the sensor comprises at least one elastic layer, at least one first electrode and at least one second electrode, wherein the elastic layer is at least partially arranged between the first electrode and the second electrode. The elastic layer preferably comprises or is formed from an elastomeric material. The elastic layer is realized such that it is electrically non-conductive, i.e. electrically insulating or dielectric, in order to electrically insulate the two electrodes from each other. The elastomeric material of the elastic layer preferably comprises or is formed from a vulcanized rubber compound, wherein also e.g. polyurethane may be used. An electrode is understood to mean an electron conductor which interacts with a second (counter) electrode and interacts with a medium located between the two electrodes, such as an elastic layer here. The electrodes may comprise or consist of an electrical conductor, such as metal or graphite. The electrodes may be implemented in a planar or linear fashion. With this type of sensor, the distance between the two electrodes can be detected, for example capacitively.

The sensor is arranged in the flow of force between the first body and the second body such that by means of the force the distance between the two electrodes can be varied and by means of this the force can be detected at least partially. In other words, the sensor is configured to infer the strength of the force between the two bodies that changes the distance by the distance between the two electrodes. Due to the elastic properties of the elastomeric element, the distance between the two electrodes may decrease as the force increases. Likewise, as the force decreases, the distance between the two electrodes may again increase back to the unloaded state.

The elastic layer includes a rubber compound including at least one silicone rubber as a sole rubber component, and hollow microspheres. In this case, all silicone rubbers known to the person skilled in the art can be used. Preferably, silicone rubbers, which may also be referred to as poly (organo) siloxanes, may be used. The latter have groups which can undergo a crosslinking reaction, which relates primarily, but not exclusively, to hydrogen atoms, hydroxyl groups and vinyl groups which may be in each case located in the chain or at the ends of the chain.

Both cold cross-linking silicone rubber (RTC ═ room temperature cross-linking) and hot cross-linking silicone rubber (HTC ═ high temperature cross-linking) can be used. In the case of RTC silicone rubbers, a distinction can be made between one-component systems and two-component systems. Silicone rubber may also be used as a premix comprising polymer, filler and oil, as is commercially available.

In particular, the rubber mixture may additionally comprise at least one plasticizer in order to set the viscosity. In this case, all plasticizers known to the person skilled in the art and compatible with the corresponding silicone rubbers can be used. In particular the use of silicone oils has proven advantageous here, since this is readily compatible with silicone rubbers. Crosslinked silicone oils have been found to be particularly well suited; they participate in the crosslinking of the rubber mixtures and are generally referred to as crosslinkable silicone oils. The latter leads to a further significant reduction in the possible exudation of the plasticizer, as has been observed hitherto in the case of insulating pipes from the prior art.

In order to increase the elasticity or compressibility of the rubber mixture, the rubber mixture has a pore structure. At the same time, the heat or sound insulation properties of the rubber mixture can thus be improved. The pore structure is implemented by using hollow microspheres mixed into the rubber mixture. Hollow microspheres (also commonly referred to simply as microspheres) are hollow spheres (microspheres) made of glass, phenolic resin, carbon or thermoplastic materials with a diameter in the μm range. They may be in an expandable form in which they are filled with a blowing agent and expand during heating; or in a pre-expanded form in which expansion has ended. Preferably, the rubber mixture comprises from 2phr to 200phr of microspheres, particularly preferably from 2phr to 30phr, very particularly preferably from 2phr to 15phr, the already expanded microspheres being composed of a thermoplastic material, so that the rubber mixture already has a pore structure before the building of the elastic layer or before crosslinking.

In addition to the resulting increased elasticity or compressibility of the rubber mixture, the microspheres also offer the advantage of forming a closed pore structure, which is more suitable for insulation purposes due to reduced convection in the pores. The higher the amount of expanded microspheres, the better the insulation caused by a higher proportion of pores. However, if the amount of microspheres is too high, processing engineering problems can arise when preparing or processing the mixture.

Alternatively, the rubber mixture may contain from 10phr to 200phr of microspheres composed of glass. With this variant, it is possible to obtain a rubber mixture with higher stability combined with lower elasticity or compressibility, whereas microspheres made of glass cannot be compressed compared to microspheres made of thermoplastic material. Such reduced elasticity or compressibility (although this may be greater than in known sensors of this type) may be acceptable depending on the application (if appropriate) to facilitate greater stability or lifetime of the elastic layer.

In this case, the invention is based on the recognition that with this type of sensor, due to the relatively high elasticity or compressibility of the elastic layer of the sensor, a sensor can be produced which has a sensitivity above the average value and which can produce correspondingly accurate measured values. At the same time, a sensor of this type can be integrated into an elastic bearing element of this type in a simple and robust manner. In this way, a relatively accurate measurement of the force in the force flow of this type of elastic support element can be provided, without this requiring the use of external components that may need to be protected. At the same time, a sensor of this type and a corresponding elastic bearing arrangement of this type can be implemented simply and/or cost-effectively. Furthermore, this type of sensor and a corresponding elastic support arrangement of this type may be robust against environmental influences such as water, moisture, dust, mud, stones, etc.

In this case, the sensor may be arranged within the elastomeric element or between the elastomeric element and one of the two bodies. As a result, depending on the application, an arrangement may be formed which enables as efficient and accurate a detection of the forces of the respective force flows as possible.

It is also advantageous that a sensor of this type can be arranged for directly detecting the force in the force flow between the two bodies. As a result, force transmission, for example by means of a fluid, can be dispensed with.

Furthermore, advantageously, this type of sensor may be integrated into the elastomeric element or arranged at the elastomeric element as early as before the vulcanization of said elastomeric element. This may simplify the production of the elastic support element as a whole in order to form the sensor-based function.

Furthermore, it is advantageous if a spring bearing element of this type can also be formed subsequently by introducing a sensor of this type into an existing spring bearing element. The characteristics and advantages achievable according to the invention can thus be improved and used in existing elastic bearing elements suitable for this.

Multiple sensors of this type may also be used, which may be implemented and arranged identically or differently. As a result, the measurement values at the plurality of positions can be detected independently of each other. These multiple measurements can be evaluated, for example, to the effect of identifying the tilt and/or rotation of the resilient support element, and to the extent of the tilt and/or rotation.

In this case, the sensors may be implemented and arranged in all possible forms. By way of example, the sensor may be mounted in a linear manner, in a curved manner, in a spiral manner, in a circular manner (as inner circle and as outer circle), in a cross-shaped manner, in a triangular manner, in a quadrilateral manner, etc. As a result, the detection of the force can be achieved as typically as possible depending on the application.

According to one aspect of the invention, the sensor is realized in a coaxial manner, wherein the first electrode is at least partially, preferably completely, cylindrically surrounded by the elastic layer, and wherein the elastic layer is at least partially, preferably completely, cylindrically surrounded by the second electrode. As a result, the elements of the sensor can be arranged compactly, so that a space-saving sensor of this type is obtained. Furthermore, a sensor can be formed which, due to its rotational symmetry, can be used independently of its orientation about a longitudinal axis as axis of rotational symmetry, since any change in radial distance in orientation results in the same change in distance between the two electrodes. Thus, the same distance variation can always be detected independently of the orientation around the longitudinal axis.

According to a further aspect of the invention, the first electrode is realized as a conductive wire composed of a solid material or as a stranded wire, wherein the wire preferably comprises or consists of copper, aluminum, silver or gold. A thread consisting of a solid material can be produced and processed in a simple manner. The stranded wire may have a higher ductility than a wire composed of a solid material, such that the sensor may withstand a force load for a longer time, and may thus have a longer service life. The materials copper, aluminum, silver or gold may have a high electrical conductivity, wherein a trade-off between the degree of conductivity, material cost and possible further properties of the material is required depending on the application.

According to a further aspect of the invention, the second electrode is realized as a conductive layer, as a film or as a braid, knit or woven fabric, wherein the layer preferably comprises or consists of copper, aluminum, silver or gold. The use of a layer makes it possible to form the second electrode with the largest possible area, so that the force flow can be detected over a correspondingly large area if the layer is used at least substantially in a planar manner. In case the layer of the second electrode is used in a cylindrical form, the first electrode may be surrounded by the second electrode so as to form a coaxial arrangement in case the sensor is implemented in a coaxial manner. In any case, the layer can be simply and cost-effectively made as a film. As in the case of a multi-stranded wire as the first electrode, alternative configurations as layers of braid, knit or woven fabrics may result in higher extensibility than in the case of a film. A braid is understood to mean a sheet-like structure formed by braiding into a regular interweaving of a plurality of strands of flexible material. A woven fabric is understood to mean a textile sheet-like structure consisting of at least two systems of threads which cross at right angles or almost at right angles. The difference between knitted and woven fabrics is that during the knitting process, the thread is not fed at right angles. Knitted fabrics are understood to mean thread systems produced by intermeshing.

According to a further aspect of the invention, the sensor further comprises at least one protective layer, preferably arranged directly on the side of at least one electrode (preferably the second electrode) facing the elastomeric element. As a result, the electrode can be protected on the side. The protective layer may serve to protect the electrode in the uninstalled state, but may also provide protection for the elastomeric element in the installed state.

According to a further aspect of the invention, the protective layer is realized in an electrically insulating manner. As a result, the electrode can be electrically insulated on said side, so that the electrical sensor function can be performed better with respect to the further electrode on the side facing away from the protective layer.

According to a further aspect of the invention, the protective layer is realized in an elastic manner, wherein the protective layer preferably comprises silicone, particularly preferably consists of silicone. In this way, the transmission of force through the protective layer can be achieved in a manner that is as undisturbed as possible, so that the sensor-based force detection is influenced as little as possible or not at all (despite the advantageous properties of the protective layer being used). This may be achieved simply, robustly and/or cost-effectively by using silicone.

According to a further aspect of the invention, at least one electrode, preferably the second electrode, is in direct contact with the elastomeric element, wherein the electrode preferably comprises at least partially (preferably completely) an adhesion promoter, preferably also a viscous elastomeric compound, on the side facing the elastomeric element, thereby creating an adhesion between the electrode and the elastomeric element. As a result, a force transmission which is as direct and thus undisturbed as possible can be achieved. The use of an adhesion promoter and optionally an additional viscous elastomer mixture may improve the connection between the electrode and the elastomeric element, so that direct force transfer may also be increased or ensured, which may improve the accuracy of the force measurement. Moreover, the service life of the sensor can be improved as a result.

According to a further aspect of the invention, the sensor is realized in an elongated manner, wherein the sensor is at least partially arranged at least substantially transversely with respect to the direction of the force flow in the direction of its elongated extent. An elongated sensor is understood to mean a sensor that extends significantly longer in one direction (i.e. in its longitudinal direction) than in the other two cartesian spatial directions (i.e. the lateral direction and the height). When considered in cylindrical coordinates, the elongate sensor extends significantly longer in the direction of its longitudinal axis than in the radial direction. The elongate extent of the sensor makes it possible to detect the largest possible area within the elastomeric element in a sensor-based manner, without excessively interrupting the force transmission by the elastomeric element. In this case, an at least substantially (preferably exactly) transverse arrangement of the elongate sensor with respect to the direction of the force flow may be made possible with sensors that are as short as possible. Furthermore, the force of the force flow acting perpendicularly on the sensor can be detected correspondingly directly.

According to a further aspect of the invention, the sensor extends at least partially (preferably completely) in a linear manner. This may simplify the subsequent introduction of this type of sensor into the elastomeric element, since a straight hole, either as a blind hole or as a through opening, may be introduced from the outside in order to accommodate the sensor. This can be done simply and quickly in terms of production engineering, for example by means of drilling because of its straightness. Furthermore, regions of the elastomer element extending as far as possible can be detected by a linearly extending sensor having as short a sensor as possible, which can minimize the necessary costs.

According to a further aspect of the invention, the sensor extends at least partially (preferably completely) in an annular manner. As a result, a relatively large area on which the sensor can detect the force of the force flow can be formed. This may improve the accuracy of the detection.

According to a further aspect of the invention, the sensor is realized in a divided manner, wherein the first electrode is realized in a continuous manner and the second electrode is realized in an interrupted manner. As a result, two measurement values can be detected by one sensor, so that a force distribution can be detected, for example whether a load is more likely to appear on the left side or on the right side. At the same time, the respective force values can be used to detect the respective forces in a sensor-based manner and to calculate the differences in the resulting loads. The total force can be determined by the sum of two individual measurements.

According to a further aspect of the invention, the sensor is realized such that the change in distance between the two electrodes is proportional to the force of the force flow between the first body and the second body. This can be achieved by selecting the geometry of the electrodes and the distance between the electrodes depending on the application. The relationship between the distance or the change in the distance and the force is understood to mean a linear relationship, which can be evaluated in a correspondingly simple and straightforward manner.

According to a further aspect of the invention, the sensor is implemented such that the capacitance between the two electrodes is proportional to the distance between the two electrodes. The linear relationship between capacitance and distance can be detected and evaluated correspondingly simply and directly.

According to a further aspect of the invention, the elastic layer of the sensor has at least substantially the same elasticity as the elastomeric element. As a result, the sensor can be arranged in the force flow in such a way that the force can be detected as typically as possible, because of the same elasticity of the elastomer element and the sensor, the same force can also flow through the sensor as through the elastomer element. This may improve the quality of the detected sensor signal and also simplify the evaluation.

Drawings

Various exemplary embodiments of the present invention are explained below with reference to the drawings. In the drawings:

fig. 1 shows a schematic longitudinal section through a sensor of an elastic support element according to the invention;

FIG. 2 shows a schematic cross section of FIG. 1;

fig. 3 shows a perspective illustration of an elastic bearing element according to the invention according to a first exemplary embodiment;

fig. 4 shows a perspective illustration of an elastic bearing element according to the invention according to a second exemplary embodiment; and is

Fig. 5 shows a perspective illustration of an elastic bearing element according to the invention according to a third exemplary embodiment.

Detailed Description

Fig. 1 shows a schematic longitudinal section through a sensor 2 of an elastic bearing element 1 according to the invention fig. 2 shows the schematic section of fig. 1. the sensor 2 extends in an elongated manner along its longitudinal axis L, from which a radial direction R extends perpendicularly away, the sensor 2 comprises a first electrode 21, which may also be referred to as inner electrode 21, radially on the inside, a cylindrical elastic layer 20 is arranged radially around the first electrode 21, said elastic layer surrounding the first electrode 21 in a circumferential direction U, the elastic layer 20 being radially surrounded by a second electrode 22 in the outer circumferential direction U.

The two electrodes 21, 22 are realized in an electrically conductive manner and are in contact from the outside (not shown) in the direction of the longitudinal axis L the intervening layer 20 is realized in an elastic and electrically insulating manner, so that for example the capacitance between the two electrodes 21, 22 can be detected if in this case a force or pressure is exerted on the second electrode 22 from the outside, the radial distance between the two electrodes 21, 22 then decreases, this can be detected by a corresponding change in capacitance and can be converted into a force or pressure value, respectively, so that the sensor 2 can also be referred to as a force or pressure sensor 2.

In this case, the elastic layer 20 includes a rubber compound including at least one silicone rubber as the only rubber component, and hollow microspheres. As a result, an elastic, electrically insulating layer 20 can be formed between the two electrodes 21, 22, which additionally has good compressibility, so that even small forces can be detected with relatively high accuracy in a sensor-based manner.

Optionally and as shown in fig. 1 and 2, the second electrode 22 is surrounded in the circumferential direction U by an annular protective layer 23 for protection from external influences. The protective layer 23 is formed from a silicone mixture in an elastic and electrically insulating manner. The protective layer 23 may also be dispensed with.

Fig. 3 shows a perspective illustration of the elastic bearing element 1 according to the invention according to a first exemplary embodiment. In this case, the sensor 2 is arranged in a linear manner and perpendicularly to the main spring-back deflection direction a of the elastic bearing element 1 in such a way as to be integrated into it. The elastic bearing element 1 comprises in this case an elastomer element 10 in the form of a rubber spring 10, which is arranged between a first body 11 as a lower stop element 11 and a second body 12 as an upper stop element 12. In this case, the sensor 2 is arranged in the elastomer element 10 in such a way that the force from the force flow in the main spring-back deflection direction a of the elastomer element 10 can be detected in a sensor-based manner as described above.

Fig. 4 shows a perspective illustration of an elastic bearing element 1 according to the invention according to a second exemplary embodiment. In this case, the sensor 2 is realized in an interrupted manner, wherein the first electrode 21 is realized in a continuous manner.

Fig. 5 shows a perspective illustration of an elastic bearing element 1 according to the invention according to a third exemplary embodiment. In this case, the sensors 2 are arranged in a ring-shaped manner so as to enlarge the effective area based on the sensors.

Description of the reference numerals

A main rebound deflection direction of the elastic supporting element 1

L longitudinal axis

R radial direction

U circumferential direction

1 elastic support element

10 an elastomeric element; rubber spring

11 a first body; lower stop element

12 a second body; upper stopper element

2, a sensor; a pressure sensor; force sensor

20 an elastic layer; rubber mixture

21 a first electrode; inner electrode

22 a second electrode; external electrode

23 protective layer