Device for stabilizing the movement of two parts movable relative to each other

Abstract

The invention relates to a device (1) for stabilizing the movement of two parts of a body region and / or a movement apparatus that are movable relative to each other, comprising a container (20) that can be fixed to a first part of the body region and / or the movement apparatus, said container (20) being filled with a filling medium (30); and at least one active body mechanism with an active body (35), wherein the active body mechanism is movably accommodated in the container (20) and can interact with the filling medium (30); a force transmission body (50) that can be fixed to a second part of the same body region and / or the same movement apparatus for transmitting an external force to the active body (35), the active body (35) comprising at least one through-hole (64) through which the filling medium (30) can flow. The active body mechanism has a sealing lip (33) for sealing a gap (31) between the inside of the container (20) and a lateral region outside the active body mechanism, the sealing lip (33) being arranged on the outside of the active body (35).

Description

TECHNICAL FIELD

[0001] The present invention relates to a device for stabilizing a body region and / or the movement of two parts of a movement device relative to each other. BACKGROUND

[0002] It is known to stabilize joints, muscles and tendons of a body by means of a device which makes possible an adaptive movement limitation. It is also known that movement devices which are capable of performing intensive movements should provide an adaptive movement limitation device.

[0003] The adaptive behavior of this type of device is achieved, inter alia, by the fact that two bodies are relatively movable, a filling medium being placed between the two bodies. Here, one body of the device can form a container which is filled with the filling medium. The other body can form a pull-out body which is movably arranged in the container. When the two bodies are moved relative to each other, the filling medium can flow in the region between the container and the pull-out body. The flow speed of the filling medium is decisively dependent on the cross-sectional area perpendicular to the direction of the relative displacement of the container and the pull-out body. This cross-sectional area, which can be used for the flow of the filling medium, is also referred to as the hydraulic diameter, and is decisive for the final reaction behavior of the device in the case of an external force.

[0004] The resistance of the device against an external force can thus be specified by the choice of the hydraulic diameter. These devices can be fixed between two body positions of a user which are relatively movable or between two elements of a movement device.

[0005] If physiological forces or physiological speeds, i.e. forces which are not critical for the body parts or components to be correspondingly stabilized, are introduced into the device by means of two body positions of a user, the container and the pull-out body are allowed to correspondingly move relative to each other depending on the hydraulic diameter in the device, and thus the movement of the body parts is stabilized.

[0006] In contrast, if non-physiological forces, i.e. forces which are critical for the body parts or components to be correspondingly stabilized, are introduced into the device, a relative movement between the pull-out body and the container can only take place at very great acting forces due to the change in the hydraulic diameter. The device is blocked.

[0007] A device of this type is known, for example, from US patent U.S. 5,712,011. US 5,712,011 discloses a device having two bodies which are relatively movable to each other. The first body comprises a container which is filled with a fluid. The second body extends at least partially into the container of the first body and is configured to interact with the fluid. A relative movement between the first body and the second body can be damped by the interaction.

[0008] In the blocked state, very high pressure loads occur in the device, which can damage the device. The disadvantage of a too hard or too brittle material selection of the container is that, although the container can withstand the pressure loads, it impairs the wear comfort of the device on the body part and the joint. On the other hand, the result of a too elastic material selection of the container is that the container buckles outwards, or swells, under high pressure, and that the filling medium can escape from the space, which is compressed in the blocked state, along the inner wall of the container past the seal and / or the movable body and the sealing ring connected thereto. As a result, the device no longer blocks as intended, and the working principle of the device is impaired.

[0009] It has been shown that the O-ring cannot adapt to changes in the diameter of the container, which is due to the bending of the container under the corresponding pressure. In addition, it has been shown that the O-ring cannot always maintain its position in the container due to the high pressure loads. Due to the escape of the filling medium past the seal and the displacement of the O-ring, even sliding over the movable body, the functional capability of the device is impaired, up to complete failure, i.e. the device switches too early or too late or not at all, i.e. the reproducibility of the working principle of the device is no longer allowed.

[0010] In addition, the devices known from the prior art have the disadvantage that they do not block in the physiological speed range and, in the case of a continuous movement at this speed, there is a risk of the movable body hitting the container, so that the device can be damaged. SUMMARY

[0011] Starting from the known prior art, it is the object of the present invention to provide an improved device for stabilizing the movement of two parts of a body region and / or a movement device relative to each other.

[0012] Therefore, a device for stabilizing the movement of two parts of a body region and / or a movement device relative to each other, in particular two oppositely movable body joints, is specified; the device comprises a container which can be fixed to a first part of the body region and / or the movement device, which container is filled with a filling medium; and at least one movable body mechanism which is accommodated in the container and can interact with the filling medium; a force transmission body which can be fixed to a second part of the same body region and / or the same movement device for transmitting an external force or speed to the movable body, the movable body comprising at least one passage opening through which the filling medium can flow. According to the invention, the movable body mechanism has a sealing lip for sealing a gap between the inside of the container and a lateral area of the outside of the movable body mechanism, the sealing lip being arranged on the outside of the movable body.

[0013] For example, the sealing lip is arranged on the outside of the movable body in the circumferential direction and / or on the upper side and / or on the lower side of the movable body.

[0014] Inside the container of the device, due to the critical displacement speed of the device in the blocked state and the resulting force, a high pressure load occurs on the active body. Depending on the diameter of the container, different sizes of pressure loads can occur. In this case, the lower the diameter, the higher the maximum pressure load that occurs. For example, pressure loads from 160 to 280 bar can occur.

[0015] This type of pressure load can be kept under control by a corresponding container design, i.e. a reinforced wall thickness. However, this is not desirable, as this type of large structure, in turn, reduces the wearing comfort of the device on the body joint or area, which type of large structure unnecessarily increases the space requirement of the device in the sports device.

[0016] Furthermore, it should be noted that the smaller the diameter of the container, the more difficult it is to control the pressure load, which in turn means that the wall thickness must be further reinforced. Therefore, the reinforcement of the wall thickness is not a suitable solution for the specific application purposes of the device, as the latter is to be as small as possible in order to be used in sports devices or body areas. In the present case, the term "sports device" also includes sports clothing such as, for example, sports bras, socks, shoes, gloves.

[0017] In order not to impair the wearing comfort and / or not to further increase the wall thickness, the container should be configured in such a way that it is not too hard / brittle (e.g. elastic modulus of 1500 to 1800 MPa, test method DIN EN ISO 6721-1 (2018-03)). The container is particularly preferably made of plastic with sufficient elastic properties.

[0018] It turns out that the selection of a material with elastic properties is particularly suitable for the container. When subjected to high pressure loads, the wall of the container bends outwards, i.e. so-called bulging. The container is slightly deformed within the permissible stress range. Due to the elastic properties of the container, a rupture of the container is avoided. This type of container configuration is also advantageous, as the elastic properties of the container do not suddenly stop the incorrect joint movement in the blocked state of the device, but rather cushion it moderately. Due to this cushioning effect, an intake or absorption of energy can occur, so that the degree of load of the surrounding body structure / part is less.

[0019] However, due to the bulging, the cross section or diameter of the container respectively increases locally, which, due to the lack of sufficient sealing, leads to a flow of the filling medium through the gap and possibly to a pressure loss inside the container. Due to the pressure loss caused by the bulging, a rather low counterforce occurs on the active body, which leads to the fact that the device is no longer blocked and it is not possible to provide and / or maintain the sufficient protective effect of the device. The active body can even slide and hit the upper end of the container, which can lead to damage of the active body and the container.

[0020] This problem can be solved by a sealing lip. The sealing lip makes it possible to design the container of the device in an elastic manner (e.g. 300 to 700 Mpa modulus of elasticity, test method DIN EN ISO 6721-1 (2018-03)), although the container bulges under high pressure loads, the filling medium cannot escape or only escapes to a small extent through the gap, since the sealing lip adjusts itself to the changes in the container diameter.

[0021] This container can be produced from metal. Alternatively, the container can be produced from plastic.

[0022] The configuration of the plastic container makes it possible for the container to have elastic properties. This can be achieved, for example, by means of an injection molding method. In one example, the container can be produced integrally with other parts, for example a restoring element, in particular a sealing hose, which is responsible for restoring the active body to the starting state. The advantage here is that the manufacturing costs can be reduced many times over, since fewer parts are assembled.

[0023] A further advantage of the sealing lip is that, in the case of an injection molding method, the tolerance of the gap size due to the draft angle is compensated by the sealing lip. The tolerance or variance of the gap size likewise leads to a blocking action of the device, but does not always occur within a constant force and / or speed range. The adjusting function of the sealing lip to the gap tolerance / variance thus ensures an improved reproducibility of the device operating principle. The sealing thus always adapts to the changes in the inner diameter of the container and ensures a uniform switching of the device, i.e. a uniform blocking of the device in the event of a pulling force introduced on the force transmission body that exceeds a predetermined pulling force and / or speed.

[0024] The advantage of the circumferential sealing lip is thus that it compensates for different gap or spacing between the active body and the inner wall of the container, i.e. also in the event of a bending or bulging of the container, and thus enables the pressure in the container to be maintained when the device is blocked.

[0025] The pressing of the diameter of the container to form a slightly oval cross section can also be compensated by the elasticity of the sealing lip. The container becomes oval due to being pressed in. The sealing lip is elastic in this way, so that different gap sizes along the circumference can be compensated. Thus, the sealing lip is compressed at certain points on the circumference and expands at other locations to compensate for the increasing gap. Due to the self- adapting action of the sealing lip, the container can be configured more elastically. Thus, the wearing comfort of the device can be improved.

[0026] Furthermore, the sealing lip can be used in a container having an oval cross section. The sealing lip is elastic in this way, so that different gap sizes along the circumference of the active body can be compensated. Thus, the sealing lip can be compressed at certain points along the circumference and can bulge at other locations to compensate for the different gap sizes due to the oval cross section.

[0027] The filling medium can be a Newtonian fluid, for example an oil, in particular a silicone oil. An expanding fluid can also be used as an alternative.

[0028] The active body and the filling medium are operatively connected to each other in such a way that, in the case of forces or speeds acting on the active body which are below a predetermined threshold value, the active body can displace the filling medium through the passage opening, i.e. the filling medium can flow within the container relative to the active body. In the case of forces or speeds acting on the active body which are greater than or equal to the predetermined threshold value, the active body acts on the filling medium in such a way that the flow of the filling medium relative to the active body through the passage opening is not possible or only partially possible through the passage opening.

[0029] The sealing lip can also be referred to as a sealing diaphragm.

[0030] According to one embodiment, the active body mechanism has a region of the sealing lip which extends at an angle (a, β) to the lateral region of the outer side of the active body mechanism with respect to the inner side of the container, the angle (a, β) being variable in order to be able to compensate for fluctuations in the size of the gap between the inner side of the container and the lateral region of the outer side of the active body mechanism and in order to be able to seal the gap even in the case of such fluctuations in size.

[0031] In the present case, fluctuations in size are to be understood as meaning variations in the spacing between the inner side of the container and the lateral region of the outer side of the active body.

[0032] The variations in spacing are in particular due to variations in the cross section of the inner diameter of the container as a result of the bulging.

[0033] According to one embodiment, the variable angle (a, β) is able to compensate for fluctuations in the size of the gap of up to 15% relative to the original size of the gap.

[0034] The advantage of this type of self-adapting sealing lip is that the container can be configured to be flexible without impairing the functional capability of the device. Furthermore, the container can be configured to be thin-walled. This is particularly advantageous since the device can be of small size and is therefore particularly suitable for use in the sports sector.

[0035] For example, a sealing lip of a container having a diameter of 8 mm is able to compensate for a local variation in the diameter of up to 1 mm, preferably 1.2 mm, as a result of the bulging. The structural planning of this type of container additionally has the advantage that the device also absorbs incorrect articulation in the blocked state.

[0036] Furthermore, the sealing lip is configured in such a way that it is able to recover again after deformation, so that it resets or approximately elastically returns to the starting state after the self-adapting deformation (mainly by itself). For this purpose, the sealing lip should have a corresponding modulus of elasticity as described above.

[0037] The channel opening fluidly connects the first chamber in the interior space to the second chamber.

[0038] The diameter of the container is larger than the diameter of the movable cylinder. This gap is formed by the different diameters of the movable cylinder and the container.

[0039] According to one embodiment, the fluid medium is able to flow through the gap when the gap size increases by more than 15% relative to the original size of the gap, in order to avoid a critical internal pressure in the container.

[0040] Therefore, the bulging is only intentionally compensated to a certain extent, namely until a certain (critical) internal pressure builds up in the container. At the critical internal pressure, the container bulges to such an extent that the sealing lip only partially seals the gap in order to counteract the resulting critical internal pressure. In the above example, the diameter will increase, for example, by more than 1 mm or 1.2 mm.

[0041] According to one embodiment, the sealing lip and the movable body are formed integrally. The sealing lip and the movable body together form a single-piece movable body mechanism. Thus, it is possible to avoid the release or sliding of the sealing element from the movable body and to improve the tightening of the sealing effect of the gap between the container and the movable body. Furthermore, the single-piece configuration makes it possible to simplify the assembly, which in turn has a positive effect on the manufacturing costs of the device.

[0042] According to one embodiment, the container comprises an opening, a force transmission body passing through the opening, and a sealing lip arranged at an end of the movable body facing the opening of the container. The force transmission body is displaceable in a pull-out direction. The pull-out direction extends essentially along a longitudinal axis of the movable body. The advantage of this arrangement of the sealing lip on the movable body is that, in addition to the sealing function, the sealing lip also provides a cushioning function that prevents the movable body from impacting the container.

[0043] The longitudinal axis is understood to be an axis that extends along the pull-out direction or center line of the force transmission body.

[0044] Alternatively, an additional sealing lip can also be arranged at the end of the movable body that is opposite the opening. Thus, the sealing effect can be further improved, so that impacts of the movable body on the region of the container opposite the opening can be avoided.

[0045] In one example, the sealing lip extends at least partially from the outer circumference of the movable body in the direction of the inner wall of the container and can bear against the latter. Thus, it is possible to ensure that the sealing lip is contacted in the starting position, i.e. in the position in which the container is not bulging. The sealing lip is prestressed, for example, in such a way that the sealing lip sealingly bears against the inner wall of the container in the starting position.

[0046] Alternatively, the sealing lip is not prestressed, but is configured in such a way that, in the starting position, it allows a small gap between the sealing lip and the inner wall of the container. If the device is activated in the range of non-physiological speeds, the filling medium acts on the sealing lip, with the result that the sealing lip is pressed against the inner wall of the container.

[0047] According to a particularly preferred embodiment, the sealing lip extends at least partially beyond the active body in the direction of the opening of the container, in order to form a protrusion in the pull-out direction of the active body.

[0048] The advantage of the orientation of the sealing lip of this type is that, when the force transmission body is pulled out of the device in the pull-out direction, the sealing lip is pressed against the inner wall of the container by the filling medium. The filling medium is compressed in the first chamber of the container, i.e. the chamber closer to the opening of the container, and flows at least along the inner wall of the container in the direction opposite to the pull-out movement of the active body. Thus, the filling medium is pressed against the sealing lip, and thus the sealing lip is pressed against the inner wall of the container and the sealing effect of the sealing lip is enhanced.

[0049] Furthermore, the advantage of this type of arrangement is that, if the active body hits the second end, i.e. the end at which the opening of the container is arranged, the sealing lip acts in a cushioning manner. This is the case, for example, when the device is activated at physiological speed and / or the active body is pulled onto the stop of the container. By means of the damping effect of the sealing lip, damage to the active body and / or the container due to the impact on the container can be avoided.

[0050] Particularly preferably, the sealing lip can be deployed by the active body in an umbrella-like or leg-like manner, in order to narrow the gap between the active body mechanism and the container. This can ensure a complete circumferential sealing of the gap.

[0051] In the present case, umbrella-like is understood to mean a direction pointing away from the longitudinal axis of the active body in space. The sealing lip deployed by the active body is arranged in space at an angle a, β between the longitudinal axis and the perpendicular to the longitudinal axis, i.e. in the range of more than 0 degrees and less than 90 degrees, preferably more than 10 degrees and less than 80 degrees, with respect to the longitudinal axis of the active body. 0 degrees is understood to mean a direction in which the sealing lip extends parallel to the longitudinal axis of the active body. 90 degrees is understood to mean a direction in which the sealing lip extends perpendicularly with respect to the longitudinal axis of the active body. Alternatively, the sealing lip can also be offset locally along the longitudinal axis of the active body and along the circumference of the active body, i.e. for example, can be arranged in a flower-like manner on the active body. Furthermore, the active body can also be of a conical design.

[0052] The sealing lip protruding from the active body can be configured in various forms. For example, the sealing lip can be straight or curved in configuration. Furthermore, the end of the sealing lip facing the inner wall of the container can have a greater cross section than the rest of the sealing lip. Thus, the contact area on the inner wall for the sealing action can be increased. Since the conical cross section of the sealing lip against the area of the active body is advantageous, the sealing lip is more flexible and can thus compensate for variations in the diameter of the container in an adaptive manner.

[0053] According to one embodiment, the sealing lip has an elastic modulus in the range of 300-700 MPa, preferably in the range of 350-450 MPa, particularly preferably 420 MPa. Thus, a sealing lip is provided which is suitable for sealing the gap between the active body and the container against the flow of the filling medium in the starting position and for compensating for variations in the size of the gap due to bulging or tolerances in the size of the gap.

[0054] The sealing lip is particularly preferably made of a polymer, preferably of a polyhaloolefin polymer, particularly preferably of polytetrafluoroethylene (PTFE). Polytetrafluoroethylene has particularly low friction and has elastic properties, which are suitable for compensating for variations in the diameter of the container due to bulging.

[0055] According to another embodiment, the sealing lip allows the filling medium to flow through the gap above a certain threshold of the force or speed acting on the force transmission body and at a certain resulting pressure in the container, preferably in the first chamber of the container, in order to avoid critical internal pressures in the container.

[0056] For example, a groove or flap is made in the sealing lip, which expands above a certain threshold of the tension applied on the force transmission body and allows the filling medium to pass through the sealing lip. Below a certain threshold, the groove and flap are closed by the internal stress of the sealing lip. Thus, the sealing lip acts as a pressure relief valve. The advantage of this is that overpressures do not occur in the container. In one example, the sealing lip can be configured to ensure a counterforce of, for example, 800 N, regardless of the force with which the force transmission body is activated. If the force transmission body is activated, for example, by a pulling force of 2000 N, the sealing lip acts as a safety valve by a certain amount of filling medium passing through the gap, which is allowed above a certain threshold, so that a counterforce of, for example, 800 N is always provided. Thus, the service life and safety of the container can be improved, for example, to prevent the container from breaking.

[0057] In one example, the active body has a stop to limit the movement in the direction of the inside of the container depending on a certain pressure. Thus, the sealing lip does not abut against the inside of the container when a certain pressure is exceeded, with the result that a small amount of filling medium can pass through the gap in order to avoid overpressure build-up.

[0058] Furthermore, a soft braking of incorrect articulation movements can be ensured. Physiologically, this is more advantageous than a complete, sudden stop of the device.

[0059] According to a further development, an end stop is provided on the container around the opening of the container in order to avoid a direct impact of the mobile body on the container.

[0060] The end stop is, for example, a resiliently soft plastic which is provided as a cushioning element or cushion around the inside of the container opening. It is also possible to integrate the end stop into the container using a two-component injection-molding process.

[0061] In another example, the sealing lip and the end stop can jointly provide the cushioning function. This is particularly important when the device is not blocked, i.e. the movement is within the physiological range. The mobile body can then pass all the way up to the stop of the container. Without a cushion, there is a risk of damage to the device components, in particular the mobile body or the sealing lip and the container, due to the impact of the mobile body on the container. In addition, the sealing lip can also be connected to the end opposite the container opening in order to form an impact-damping element or cushioning element there.

[0062] According to another embodiment, the mobile body comprises a first mobile body and a second mobile body, which are movably arranged in the container and which can interact with the filling medium, wherein the force transmission body transmits the external force to the first mobile body, wherein the second mobile body is elastically coupled to the first mobile body by a coupling element, wherein the second mobile body and / or the first mobile body has at least one passage opening through which the filling medium can flow, wherein the first mobile body forms a valve body and the second mobile body forms a valve seat, wherein the sealing lip is arranged on the second mobile body.

[0063] It is thus possible to allow or prevent the flow of medium through the passage opening, depending on the position of the valve. The second mobile body is arranged closer to the second end of the container relative to the longitudinal axis of the container, and the first mobile body is arranged closer to the first end relative to the longitudinal axis.

[0064] In a preferred development, the second mobile body comprises at least one receiving space in the direction of relative displacement, which overlaps the first mobile body with respect to the direction of relative displacement, independently of the relative displacement of the first mobile body and the second mobile body relative to each other.

[0065] Thus, a contact, i.e. a guidance of the first active body on the second active body, can always be provided. Thus, when the device is in a starting position, in which no external forces act on the device and in particular no external forces act on the first and second active body, and in which the receiving space of the second active body overlaps the first active body, and in a blocked position, in which the first active body is on the second active body, thus closing the passage opening.

[0066] The overlap of the first active body and the second active body in the direction of relative displacement enables a guidance of the two active bodies when they are moved relative to each other due to the external force. Thus, by the contact of the two active bodies, the possibility of a complete closure of the passage opening and thus a blocking of the passage opening is increased. This contributes to a homogeneous behavior of the device.

[0067] The direction of relative displacement denotes the direction in which the first active body and the second active body can be moved relative to each other by an external action of the force and / or force transmission body.

[0068] In one example, the diameter of the container is in the range of 4-15 mm. The choice of the diameter depends on the application. For example, in sports devices, a device with a diameter of 15 mm is used. In areas of use such as the clothing industry, for example in footwear, a device with a diameter of 4 mm is used. This type of small-diameter device can be used, for example, to weave or knit into a textile. The smaller the diameter of the container, the better the wearing comfort of the device on the body and / or the smaller the spatial requirement of the device if it is attached to a sports device.

[0069] The sealing lip makes it possible for the device to have a correspondingly small size, so it is particularly suitable for use in the sports sector. As an alternative, the device can also be used in occupational safety, in the military sector or generally for the prevention of falls.

[0070] The wall thickness of the container is preferably between 1 and 3 mm, preferably between 1.5 and 2.5 mm, in particular 2 mm.

[0071] According to a further development, the gap size between the first active body and the container is different from the gap size between the second active body and the container.

[0072] According to one embodiment, the sealing lip is molded on the active body by means of a two-component injection molding production method, at least the sealing lip comprising a polymer, in particular made of a polyhalogenated olefin polymer, preferably polytetrafluoroethylene (PTFE). Polytetrafluoroethylene has a particularly low friction and has elastic properties, which are suitable for compensating for variations in the diameter of the container. Furthermore, polytetrafluoroethylene has a high reproducibility in the production process. As an alternative, the active body can be designed or molded from a component in such a way that the active body itself forms the sealing lip and the curvature, or does not form a shape, in an adaptive manner depending on the acting force and speed.

[0073] In a preferred refinement, the container is a hollow fiber. This is advantageous, for example, in the case of integration of the device into a textile, such as a bandage, a pad, a glove, a shoe, a sock, etc. The operating principle on which the device is based makes a particularly small overall design possible. Thus, a device for movement restriction integrated into a hollow fiber can thus be realized which is particularly suitable for use in the sports sector.

[0074] The device for stabilizing a body joint and / or a movement apparatus makes possible the configuration of a container with elastic properties. In the case of high pressure loads on the device, the bulging of the container and the associated pressure loss is compensated by the sealing lip, since in the case of bulging the sealing lip can be adjusted to the changing cross section of the container. BRIEF DESCRIPTION OF DRAWINGS

[0075] Preferred further embodiments and aspects of the application are explained in greater detail by way of description of the following figures, in which:

[0076] Figure 1a schematically shows a cross-sectional view of a device according to one embodiment for stabilizing the movement of two parts of a body region and / or a movement apparatus relative to one another,

[0077] Figure 1b schematically shows Figure 1a a detail view of a cross-sectional view of the device in a non-clogged state of the device,

[0078] Figure 1c schematically shows Figure 1a a detail view of a cross-sectional view of the device in a clogged state,

[0079] Figure 1d schematically shows Figure 1a a perspective view of the device in a non-clogged state of the device,

[0080] Figure 2 schematically shows a cross-sectional view of a device according to another embodiment for stabilizing the movement of two parts of a body region and / or a movement apparatus relative to one another,

[0081] Figure 3a schematically shows Figure 2 a perspective view of a second mobile body of the device,

[0082] Figure 3b and 3c schematically shows Figure 2 a side view of a second mobile body of the device,

[0083] Figures 4a-4g shows a perspective view and a cross-sectional schematic of various embodiments of a sealing lip,

[0084] Figure 5 A cross-sectional view of a device for stabilizing a body region and / or the movement of two parts of a sports device moving relative to each other with end stops is schematically shown, and

[0085] Figure 6 A cross-sectional view of a device for stabilizing a body region and / or the movement of two parts of a sports device moving relative to each other is schematically shown according to a further embodiment. DETAILED DESCRIPTION

[0086] In the following, preferred exemplary embodiments will be described based on the drawings. Identical, similar or identically acting elements are denoted by the same reference signs here. In order to avoid redundancy, repeated descriptions of these elements are partly omitted in the following description.

[0087] In the following, preferred exemplary embodiments will be described based on the drawings. Identical, similar or identically acting elements are denoted by the same reference signs here. In order to avoid redundancy, repeated descriptions of these elements are partly omitted in the following description. Figures 1a to 1c A device 1 for stabilizing a body region and / or the movement of two parts of a sports device moving relative to each other is described. The device comprises a container 20 which can be fixed on a first part of a body region and / or a sports device, the container 20 being filled with a filling medium 30; and at least one active body mechanism with an active body, which is displaceably accommodated in the container 20 and can interact with the filling medium; a force transmission body 50 which can be fixed on a second part of the same body region and / or the same sports device for transmitting an external force to the active body 35, the active body 35 comprising at least one passage opening 64 through which the filling medium can flow. The active body mechanism has a sealing lip 33 for sealing a gap 31 between the inner side of the container 20 and the lateral region of the outer side of the active body mechanism 35, the sealing lip 33 being arranged on the outer side of the active body 35.

[0088] The active body 35 divides the inner space 25 of the container 20 into a first chamber 23 and a second chamber 24. The force transmission body 50 is fastened on the active body 35, the active body 35 passing longitudinally through the second chamber 24 and leaving the container 20 at its second end 22. The free end of the force transmission body 50 is arranged in the first chamber 23. Figure 1aThe container 20 (shown) can be connected to a user's body part (not shown) via a corresponding attachment element, or to a motion device, to transmit pulling forces from the body part or motion device to the moving body 35 via the force transmission body 50. The container 20 includes a first attachment element for transmitting force between the container 20 and the first body (not shown), and the force transmission body 50 includes a second attachment element for transmitting force between the force transmission body 50 and a second body (not shown). The first attachment element is disposed in the region of the container opening for transmitting force between the container 20 and the first body (not shown). In one example, the first attachment element is configured as a flange.

[0089] The first attachment element acts as an interface for transmitting force between the first non-device body and device 1. A second attachment element is disposed on the exposed portion of the force transmission body 50, and this second attachment element also acts as an interface for transmitting force between the second non-device body and device 1. As a result, under load, a flow of force is generated between the first attachment element, the filling medium 30, the force transmission body 50, and the second attachment element.

[0090] Container 20 is closed by the closure 26 in the region of the first end 21 (see Figure 2 The result is that the filling medium located in container 20 can be retained.

[0091] The sealing body 29 is disposed at the second end 22 of the container 20 (see Figure 2 Within the area of ​​the container 20, the sealing body 29 seals the internal space of the container 20 relative to the force transmission body 50. Here, the container 20 has an opening 52 through which the force transmission body 50 exits from the internal space of the container 20.

[0092] The movable body 35 can be moved through the filling medium in the direction of the force transmission body 50 at the second end 22. Here, the container 20 is connected to the first body or moving device position, and the force transmission body 50 is connected to the second body or device position, and the first body or device position and the second body or device position can move relative to each other.

[0093] Device 1 can be sized for a specific application, resulting in device 1 allowing for the user's physiological movements. If the movable body 35 moves towards the second end via force transmission body 50 in the context of physiological movement, the filling medium can flow, as shown here, through the channel opening 64 between container 20 and movable body 35, or through a channel provided in movable body 35 (see...). Figure 2The valve in the first chamber 23 enters from the second chamber 24. The flow velocity of the filling medium depends decisively on the cross-sectional area perpendicular to the pull-out direction B of the container 20 and the moving body 35. The cross-sectional area provided for the flow of the filling medium, also known as the hydraulic diameter, ultimately plays a decisive role in the responsive behavior of the device under external forces. The device 1 counteracts the resistance of external forces or velocity, which can be determined by the selection of the hydraulic diameter. Here, the arrow indicates the flow direction S of the filling medium. If the force no longer acts on the moving body 35 through the force transmission body 50, the body 35 can be moved back to the starting position by the restoring element 42 (see...). Figure 6 ), wherein the filling medium 30 flows from the first chamber 23 into the second chamber 24.

[0094] In contrast, if non-physiological forces (i.e., forces that are essential to and correspondingly stable for body parts or components) are introduced into the device, relative movement between the moving body 35 and the container 20 is still possible, but only with very large forces due to the hydraulic diameter. The filling medium 30 is a Newtonian fluid, such as silicone oil. Alternatively, an expansive fluid can also be used as the filling medium. Furthermore, plastics can also be used.

[0095] like Figure 1a Detailed excerpt Figure 1b and Figure 1c As shown, the movable body mechanism (i.e., the movable body 35 and the sealing lip 33) has a sealing lip region that abuts against the inside of the container 20. This sealing lip extends at an angle (α, β) relative to the lateral region on the outside of the movable body. The angle (α, β) is variable in order to compensate for the size fluctuation (ΔS) of the gap 31 between the inside of the container 20 and the lateral region on the outside of the movable body mechanism, and to seal the gap 31 even in the event of such size fluctuation.

[0096] Figure 1b The device shown is from Figure 1a A detailed excerpt is provided. Here, it is shown that the sealing lip 33 abuts against the inner wall of the container 20 at an angle α relative to the longitudinal axis of the movable body 35 to prevent the filling medium from flowing through the gap 31; that is, the gap 31 is essentially sealed or bridged by the sealing lip 33. The sealing lip 33 and the movable body 35 can be integrally formed, as shown, and can form a movable body mechanism. Therefore, it is possible to prevent the sealing lip 33 from being released from the movable body 35. Alternatively, the sealing lip and the movable body can also be configured as various parts.

[0097] exist Figures 1a to 1cIn the shown embodiment, the sealing lip 33 extends beyond the mobile body 35 in the direction of the opening 52 of the container 20 to form a protrusion in the pull-out direction of the mobile body 35. This orientation of the sealing lip 33 has the advantage that, when the force transmission body 50 is pulled out of the device in the pull-out direction B, the sealing lip 33 is pressed against the inner wall of the container 20 by the filling medium. The filling medium is compressed in the second chamber 24 of the container and flows at least along the inner wall of the container 20 in the direction opposite to the pull-out direction, i.e. towards the mobile body 35. Thus, the filling medium presses against the sealing lip 33, which, in turn, presses against the inner wall of the container 20 and enhances the sealing effect of the sealing lip 33.

[0098] Figure 1c The state of the sealing lip 33 is shown, in which the container 20 is curved or bulged due to an increase in the pressure inside the container. Inside the container of the device, very high pressures of up to 280 bar can occur due to the critical displacement speed and the resulting force acting on the mobile body 35. The container is made of an elastic material, which, in the case of a high pressure load, is curved or bulged outwards, i.e. the wall of the container is curved in an arc shape outwards.

[0099] The cross-section of the container 20 is locally increased by the bulging of the container 20. However, the elasticity of the sealing lip 33 is such that, even if the cross-section of the container 20, i.e. the diameter of the container, changes, no filling medium flows through the gap 31. As Figure 1c As shown, the sealing lip expands outwards, i.e. in the direction of the inner wall of the container, to compensate for the curvature. With respect to the longitudinal axis of the mobile body, the sealing lip is now not at the angle a in space, but at the angle β, which is greater than a. Thus, no pressure loss occurs inside the container 20, in particular in the second chamber 24, so that the functionality of the device 1 can be preserved.

[0100] The circumferential sealing lip thus has the advantage of compensating for a varying gap 31 or spacing between the mobile body 35 and the inner wall of the container 20, i.e. it deforms in the event of a curvature or bulging of the container 20 and thus enables the pressure inside the container 20 to be maintained when the device 1 is blocked.

[0101] According to one particularly preferred embodiment, the variable angle (a, β) can compensate for a fluctuation in the size of the gap 31 of up to 15% with respect to the original size of the gap 31. In other words, the sealing lip 33 is designed in a self-adapting manner such that it is able to seal even in the event of a change in the diameter d2 of the container and a fluctuation (AS) in the size of the gap between the container 20 and the mobile body. Figure 1cThe original diameter dl of the container 20 and the changed diameter d2 of the container 20 after bulging is shown, wherein d2-dl corresponds to ΔS(max), i.e. the maximum dimension fluctuation of the gap 31 along the bulging of the container 20 which the sealing lip has to seal.

[0102] The advantage of this type of self-adapting sealing lip is that the container can be configured elastically without impairing the functional capability of the device. For example, as shown in Figure 1c for a container with a diameter of 8 mm, the sealing lip can compensate for a local diameter change due to a bulging of up to 1 mm, preferably 1.2 mm.

[0103] Figure 1a A container 20 with an opening 52 is shown, wherein the force transmission body 50 extends through the opening 52 and the sealing lip 33 is arranged at the end 22 of the mobile body 35 which faces the opening 52 of the container 20. The force transmission body 50 can be displaced in the pull-out direction B which extends essentially along the longitudinal axis of the mobile body 1. As an example, as shown in Figure 1b and Figure 1c the sealing lip 33 extends beyond the mobile body 35 in the direction of the opening 52 of the container 20 to form a protrusion in the pull-out direction of the mobile body 35.

[0104] The advantage of this is that the sealing lip has a damping effect when the mobile body comes into contact with the second end. This is the case, for example, when the device is activated at physiological speed (see Figure 5 ). By means of the damping effect of the sealing lip, damage to the mobile body due to impacts on the container can be avoided.

[0105] Figure 1d A perspective view of the device 1 is shown. The force transmission body 50 protrudes from the container 20. Here, the container 20 can be fastened to a body location or a movement device of a user, for example, such as a sports shoe. The end of the force transmission body 50 which is located outside the device 20 can be fastened to a second body location. The container 20 is of cylindrical design. Alternatively, the container can also be of cuboid or ellipsoid design.

[0106] Figure 2A further preferred embodiment of the device 1 is shown. Here, the active body mechanism has a first active body 40 and a second active body 60, which are movably arranged in the container 20, are able to interact with the filling medium 30, the force transmission body 50 transmits an external force to the first active body, the second active body 60 is elastically coupled to the first active body 40 by means of a coupling element 72, the second active body 60 and / or the first active body 40 has at least one passage opening 64, through which the filling medium 30 is able to flow. The passage opening 64 in the second active body 60 provides the filling medium with a hydraulic diameter, through which the filling medium 30 is able to flow as long as there is a spacing between the first active body 40 and the second active body 60.

[0107] Furthermore, the first active body 40 forms a valve body, while the second active body 60 forms a valve seat, on which the sealing lip 33 is arranged. Thus, the flow of the medium through the passage opening 64 can be allowed or prevented in a manner dependent on the valve position. Through the passage opening 64, the flow of the filling medium can be allowed or prevented in a manner dependent on the valve position. The external force acting on the first active body 40 can be transmitted to the second active body 60 by means of the coupling element 72. Thereby, the first active body 40 can push and / or pull the second active body 60 through the filling medium by means of the coupling element 72. The second active body 60 is arranged close to the second end 22 of the container 20 with respect to the longitudinal axis of the container, while the first active body 40 is arranged close to the first end 21 with respect to the longitudinal axis.

[0108] The second active body 60 has an accommodation space 61, which extends towards and overlaps the first active body 40. The accommodation space 61 is configured to engage behind the first active body 40. Here, the first active body 40 is partially accommodated in the accommodation space 61.

[0109] According to the present embodiment, the first active body 40 is configured in a stepped manner. The first active body 40 thus has a first portion 43, which is movably accommodatable in the accommodation space 61 of the second active body 60, and a second portion 44, which is conically shaped with respect to the first portion 43 and extends out of the accommodation space in the direction of the movement direction B. The accommodation space 61 is configured in such a way that it engages behind the first portion 43 of the first active body 40 and forms a guide for the second portion 44 in the movement direction B. In this way, the first active body 40 can be centered with respect to the second active body 60, with the result that the closure of the passage opening 64 can always be ensured when the first active body 40 and the second active body 60 assume a closed valve position.

[0110] Here, the coupling element 72 is configured in such a way that, in the case of an external force acting on the first mobile body, in the physiological speed range, it transmits the force to the second mobile body 60, with the result that the second mobile body can move together with the first mobile body 40 through the filling medium.

[0111] If the force acting on the second mobile body by the first mobile body 40 and the coupling element 72 leads to a critical relative displacement speed in the device, i.e. a non-physiological speed, the coupling element 72 yields, with the result that the first mobile body 40 moves towards the second mobile body 60. As a result, the hydraulic diameter decreases until the valve formed by the two mobile bodies is closed.

[0112] If there is no longer a hydraulic diameter through which the filling medium can flow, the first mobile body 40 and the second mobile body 60 cannot move further through the filling medium. The device 1 is blocked.

[0113] The sealing lip 33 can thus prevent the filling medium from flowing through the gap 31 and ensure that the filling medium cannot flow through the gap 31 even in the event of the container 20 bulging, by virtue of the self-adapting configuration of the sealing lip (see Figure 1c ).

[0114] The second mobile body 60 can be deformed by the impact of the first mobile body 40 on the mobile body 60. At the point of contact of the first mobile body 40 with the second mobile body 60, pressures of up to 1000 bar can act partially on the second mobile body. The second mobile body 60 can thus, in another embodiment, have an advantageous component design which can be implemented by means of a two-component injection-moulding operation in the form of a corresponding material pairing (hard component / soft component). Here, the region of the second mobile body which comes into contact with the first mobile body can be formed from a material having a high strength (e.g. a modulus of elasticity of 1800 MPa), i.e. the opposite side of the second mobile body, i.e. the side which constitutes the sealing lip, is formed from a soft component having a high elasticity (e.g. a modulus of elasticity of 300-700 MPa).

[0115] As an alternative, an insert component / liner component (not shown) made of a hard component, such as metal, can also be provided in the accommodation space 61.

[0116] The corresponding advantageous design and / or the metal insert can prevent the first mobile body 40 or the first portion 43 from pressing or acting on the second mobile body 60 in a disruptive manner.

[0117] Figure 3a Figure 3c A diagrammatic view of the second mobile body 60 is shown. The second mobile body 60 is designed in such a way that the coupling transmission body, the coupling element and the first mobile body are enclosed therein. The second mobile body 60 has a cage-like accommodation space (see alsoFigure 2 ).

[0118] The sealing lip 33 forms together with the mobile body 60 a mobile body mechanism. According to the embodiment shown here, the sealing lip 33 can be deployed in an umbrella-like manner by the second mobile body 60 to reduce the gap between the second mobile body 60 and the container. Thus, a complete circumferential sealing of the gap 31 can be ensured.

[0119] The sealing lip deployed by the mobile body is arranged in space between the longitudinal axis and the perpendicular to the longitudinal axis, i.e. the angle range with respect to the longitudinal axis of the mobile body is greater than 0 degrees and less than 90 degrees, preferably greater than 10 degrees and less than 80 degrees. 0 degrees is to be understood as the direction in which the sealing lip extends parallel to the longitudinal axis of the mobile body. 90 degrees is to be understood as the direction in which the sealing lip extends perpendicularly with respect to the longitudinal axis of the mobile body.

[0120] Figures 4a to 4f Further alternative embodiments of the sealing lip are shown. As shown here, the sealing lip 33 protruding from the mobile body 35, 60 can be configured in various forms. For example, the sealing lip can be straight (see Figure 4a or Figure 4b ) or curved (see Figure 4c ) configured. As shown here, the sealing lip 33 can be manufactured in different ways in the mobile body 35, 60. In one preferred example, the sealing lip 33 is formed on the mobile body 35, 60 by a two-component injection molding method, at least the sealing lip comprising a polymer, in particular a polyhaloolefin, preferably polytetrafluoroethylene (PTFE).

[0121] Furthermore, as shown in Figure 4d , the sealing lip 33 can be limited in its movement by a limiting element 37. Thus, a small gap between the sealing lip 33 and the container 20 can always be provided. In one example, the limiting element 37 can be formed in such a way that it has a higher modulus of elasticity than the sealing lip (e.g. a hard plastic), so that above a certain pressure in the container, the sealing lip is prevented from expanding in the direction of the inner wall of the container. In the activated state, the sealing lip does not abut against the limiting element 37. In the deployed state, characterized by the dashed line, the sealing lip is deployed in the direction of the inner wall of the container 20, but only within the limits allowed by the limiting element 37. As a result, it can be ensured that a small layer of the medium film can pass through the gap, so that critical high pressures can be avoided. At the same time, the gap provided by the limiting element is set in such a way that no pressure loss occurs and the device remains clogged.

[0122] Figure 4eA further embodiment of the limiting element 37 is shown. As shown, the limiting element can additionally have elastic properties, which enable the sealing lip 33 to return to the starting position (see dotted line illustration). Here, the restoring element can act like a spring, for example, the sealing lip returns immediately after the load. At the same time, the limiting element 37 is configured in such a way that the sealing lip 33 can be limited in its expansion. The case here is that, as described above, the sealing lip can expand upon reaching a certain pressure. As soon as a critical pressure is reached in the container 20, the limiting element 37 immediately limits further expansion, thus ensuring that excessively high pressures do not occur in the container 20.

[0123] Figure 4f A further embodiment of the sealing lip 33 is shown. In the further embodiment, the sealing lip 33 is configured in such a way that it can also be made to expand significantly in the direction of the passage opening 64. Thus, the active body 35 is configured in such a way that the sealing lip 33 can open and close the passage opening 64 in the active body 35 in a valve-like manner. The opening is released again by the restoring properties of the sealing lip or by an additional restoring element. Here, the sealing lip 33 is configured in such a way that, in addition to the gap 31, the sealing lip 33 can also seal the passage opening 64, i.e. can substantially prevent the passage of the filling medium through the passage opening 64. The dotted line indicates the expansion of the sealing lip 33 in the container curved state. By the additional sealing of the passage opening 64, the clogging of the device can be improved.

[0124] Figure 4g A further embodiment for limiting the expansion of the sealing lip 33 is shown. Here, the active body 35 is provided with an element 39, which extends around the active body, for example a ring or a collar, for example, as a result of which the travel or deformation range of the sealing lip is limited.

[0125] The collar 39 is attached around the sealing lip 33. The form of the collar 39 only allows the sealing lip 33 to expand to a predetermined point. For example, the collar can be designed in such a way that the collar 39 allows the sealing lip (see dotted line) to expand to a predetermined pressure (for example, 160 bar).

[0126] Figure 5 A device 1 with an end stop 27 is shown in Figure 2 The end stop 27 is provided in the region of the opening 52 of the container 20 in order to avoid the active body 60 from directly hitting the container. This is the case when the device is moved in the physiological speed range, for example, if the user of the device deliberately bends over to the extent that the maximum mobility of the device is exhausted at a slower speed. The end stop 27 can avoid the active body 60 from coming into direct contact with the second end 22 of the container 20. Thus, the impact of the active body on the second end 22 of the container 20 can be damped by the end stop 27.

[0127] According to Figure 5The end stop 27 is a damping, soft plastic, which is provided as a cushioning element on the inside of the container, around the opening 52 of the container 20. The cushioning element can be, for example, a cushioning layer made of a polymer, in particular made of a polyhaloalkene, preferably polytetrafluoroethylene (PTFE).

[0128] Alternatively, the upper region of the second end of the active body facing the container can be provided with a damping, soft plastic. For example, the active body can be produced by a two-component injection molding method, the sealing lip 33 and the upper region being composed of a soft damping material, and the remaining region of the active body being composed of a hard material.

[0129] In another example, the sealing lip 33 and the end stop 27 can be combined to provide the optimum damping of the active body.

[0130] In a further embodiment, the sealing lip 33 can also be configured in such a way that the sealing lip is arranged offset with respect to the end stop of the active body. Thus, in the case of repeated impacts on the container, wear and even destruction of the sealing lip can be prevented. Here, a part of the active body first comes into contact with the container or the end stop before the sealing lip comes into contact with the container.

[0131] Figure 6 A cross-sectional view of a device for stabilizing a body joint and / or a movement device according to a further embodiment is shown, with a sealing insert 28 provided at the opening and a cover layer 51 of the force transmission body 50.

[0132] The sealing insert 28 is arranged at the opening of the device 1, below the O-ring 53 sealing the opening. The sealing insert 28 is adapted in size to the container 20 at the upper end of the container 20, so that the sealing insert 28 sits firmly on the container 20 by a non-positive connection, in particular a press-fit connection between the sealing insert 28 and the container 20. In one example, an active body 60 can be used to press the sealing insert 28 into the container 20. Alternatively, the sealing insert 28 can be attached to the container 20 by a positive locking or integral bonding connection. For example, the sealing insert can be molded directly onto the container during the two-component injection molding production process during the manufacture of the container and thus can be produced integrally with the container. The sealing 53 at the opening can be improved by the sealing insert 28, since in addition to the sealing action of the sealing insert 28, the sealing insert 28 also ensures the firm sitting of the O-ring 53. Thus, a slipping of the O-ring 53 is avoided. At the same time, the impact protection of the active body and the sealing lip is improved.

[0133] According to a further embodiment, in addition to the above-mentioned end stop, a sealing insert 28 can also be provided on the container 20.

[0134] In addition, Figure 6 In the example shown, the force transmission body 50 is configured as a cable, specifically a steel wire cable (e.g., Bowden cable) covered at least in the area in contact with the filling medium by a cover 51. The cover 51 has the effect of preventing the filling medium from flowing into the braid of the steel wire cable, thus preventing increased flow resistance (e.g., turbulence) due to the movement of the steel wire cable in the filling medium. Therefore, the sliding characteristics of the force transmission body 50 in the fluid medium can be improved.

[0135] If applicable, all individual features shown in the individual exemplary embodiments may be combined with and / or interchanged with each other without departing from the scope of the invention.

[0136] Figure Labels

[0137] 1 device

[0138] 20 containers

[0139] 21 First end

[0140] 22 Second end

[0141] 23 First Chamber

[0142] 24 Second Chamber

[0143] 25. Interior space accommodated

[0144] 26. Enclosed section

[0145] 27 End stop

[0146] 28 Sealing inserts

[0147] 29 Sealing Body

[0148] 30 Filling medium

[0149] 31 gap

[0150] 33 Sealing lip

[0151] 35. Main Parts of the Activity

[0152] 37. Limiting elements

[0153] 39 Hoop

[0154] 40 First Activity Subject

[0155] 42 Recovery Components

[0156] 43 The first part of the first activity

[0157] 44 The second part of the second activity

[0158] 50 force transmission body

[0159] 51 cover

[0160] 52 opening

[0161] 53 o-ring

[0162] 60 second mobile body

[0163] 61 receiving space of the second mobile body

[0164] 72 coupling element

[0165] S flow direction

[0166] B pull-out direction

Claims

1. A device (1) for stabilizing the movement of a body region and / or a motion device relative to two movable parts of each other, comprising: Container (20), which can be fixed to a body area and / or a first part of a motion device, is filled with a filling medium (30). At least one movable body mechanism with a movable body (35) is movably housed within the container (20) and is capable of interacting with the filling medium (30). Force transmission body (50), which can be fixed to the second part of the same body area and / or the same motion device, for transmitting external force to the moving body (35). The active body (35) includes at least one channel opening (64) through which the filling medium (30) can flow. Its features are, The active body mechanism has a sealing lip (33) for sealing the gap (31) between the inner side of the container (20) and the lateral area of ​​the outer side of the active body mechanism (33, 35), and the sealing lip (33) is disposed on the outer side of the active body (35). The active body mechanism has a region of the sealing lip that abuts against the inside of the container (20) and extends at an angle (α, β) relative to the lateral region of the outside of the active body (35), the angle (α, β) being variable, thereby compensating for dimensional fluctuations in the gap (31) between the inside of the container (20) and the lateral region of the outside of the active body mechanism, and sealing the gap (31) even in the event of such dimensional fluctuations.

2. The device (1) as claimed in claim 1, wherein the variable angles (α, β) are capable of compensating for size fluctuations of the gap (31) of up to 15% relative to the original size of the gap.

3. The apparatus (1) as claimed in claim 1, wherein, When the size of the gap (31) is increased by more than 15% relative to the original size of the gap (31), the filling medium (30) can flow through the gap (31) to avoid the occurrence of critical internal pressure in the container (20).

4. The apparatus (1) as claimed in claim 1, wherein, The sealing lip (33) and the active body (35) are integrally formed.

5. The apparatus (1) as claimed in claim 1, wherein, The container (20) includes an opening (52), through which the force-transmitting body (50) extends, and the sealing lip (33) is disposed at the end of the movable body (35), the end of the movable body (35) facing the opening (52) of the container (20).

6. The apparatus (1) as claimed in claim 1, wherein, The sealing lip (33) extends at least partially beyond the movable body (35) in the direction of the opening (52) of the container (20) to form a protrusion in the pull-out direction of the movable body.

7. The apparatus (1) as claimed in claim 1, wherein, The sealing lip (33) can be deployed from the active body (35) in an umbrella-like manner to close the gap (31) between the active body mechanism and the container (20).

8. The apparatus (1) as claimed in claim 1, wherein, The sealing lip (33) has an elastic modulus in the range of 300~700MPa.

9. The device (1) of claim 1, wherein the sealing lip (33) allows the filling medium to flow through the gap (31) at a condition above a certain threshold of the force acting on the force transmission body and a certain pressure generated in the container, so as to avoid critical internal pressure in the container.

10. The device (1) of claim 9, wherein the sealing lip (33) allows the filling medium to flow through the gap (31) at a certain threshold of force acting on the force transmission body and a certain pressure generated in the first chamber (24) of the container (20) to avoid critical internal pressure in the container.

11. The apparatus (1) as claimed in claim 1, wherein, An end stop (27) is provided on the container (20) around the opening (52) of the container (20) to avoid direct collision of the moving body (35) with the container (20).

12. The apparatus (1) as described in any of the preceding claims, wherein, The main activity subject (35) includes a first activity subject (40) and a second activity subject (60). The first active body (40) and the second active body (60) are movably disposed in the container (20), and the first active body (40) and the second active body (60) are capable of interacting with the filling medium (30); The force transmission body (50) transmits external force to the first active body (40). The second active body (60) is elastically connected to the first active body (40) via a connecting element (72). The second active body (60) and / or the first active body (40) have at least one channel opening (64) through which the filling medium (30) can flow, and The first movable body (40) forms a valve body and the second movable body (60) forms a valve seat, and the sealing lip (33) is disposed on the second movable body (60).

13. The apparatus (1) as claimed in claim 12, wherein, The sealing lip (33) is produced by a two-component injection molding process and molded onto the active body (35, 60), wherein at least the sealing lip (33) contains a polymer.

Images