Damping medium for use in a damper for a fitting

Abstract

The invention relates to a damping medium (1) for use in a damper (2) for a fitting (3), preferably a furniture fitting, wherein the damper (2) has a damper housing (4), at least one damping chamber (5) for receiving the damping medium (1) and a plunger (6) which is movable relative to the damping housing (4) in the damping chamber (5), wherein the damping medium (1) is a mixture, wherein the mixture has a first fluid (7), preferably a first liquid, and at least one second fluid (8), preferably a second liquid, wherein the at least one second fluid (8) in the form of a pure substance prior to being mixed with the first fluid (7) has a null viscosity which is higher, preferably 10 times to 200,000 times, particularly preferably 100 times to 10,000 times higher, than that of the first fluid (7) in the form of a pure substance prior to being mixed with the at least one second fluid (8) under conditions which are otherwise the same.

Description

[0001]Damping medium for use in a damper for a fitting. The present invention relates to a damping medium according to the preamble of claim 1, as well as to a damper comprising such a damping medium, a fitting comprising such a damper and / or such a damping medium, an arrangement comprising such a fitting, and a method for producing such a damping medium. Damping media are known from the prior art, such as from DE 4019 150 A1. Such damping media can be used for door closers, specifically for damped movements of a door. Damped movements of other objects are also conceivable, such as windows, cabinet doors, panels, or the like. Damping media must overcome various challenges. For example, damping media should exhibit certain solubilities, emulsion stabilities, environmental compatibility, shear behavior, and / or the like.In particular, the shear behavior of a damping medium should be as ideally suited to the respective application as possible. It is important that the viscosity and shear behavior of the damping medium enable ideal damping behavior at various shear rates while simultaneously avoiding or at least reducing leaks in the damping systems. To adjust the shear behavior of a damping medium, fillers are sometimes added, but these do not deliver the desired results. The object of the present invention is therefore to at least partially remedy the disadvantages of the prior art and to provide a damping medium that is improved over the prior art and is characterized in particular by adapted shear behavior at different shear rates.The object is further to provide a damper with such a damping medium, a fitting with such a damper and / or such a damping medium, an assembly with such a fitting, and a method for producing such a damping medium. This object is achieved by the features of claims 1, 12, 13, 14, and 15.This object is achieved by means of a damping medium according to claim 1, namely by means of a damping medium for use in a damper for a fitting, preferably a furniture fitting, wherein the damper has a damper housing, at least one damping chamber for receiving the damping medium and a piston that is movable relative to the damper housing in the damping chamber, wherein the damping medium is a mixture, wherein the mixture has a first fluid, preferably a first liquid, and at least one second fluid, preferably a second liquid, wherein the at least one second fluid in the form of a pure substance before mixing with the first fluid has a zero viscosity that is preferably 10 times to 200,000 times, particularly preferably 100 times to 10,000 times higher than the first fluid in the form of a pure substance before mixing with the at least one second fluid under otherwise identical conditions.The technical effect of the damping medium is that by using two fluids with significantly different zero viscosities, a desired shear behavior of the mixture can be achieved. If, for example, two fluids with very similar zero viscosities are mixed, the zero viscosity and / or shear behavior of the mixture will not differ significantly from the zero viscosities and / or shear behaviors of the individual fluids. By mixing these fluids, only a very limited range of the viscosity of the mixture is accessible and adjustable. If, on the other hand, fluids with significantly different zero viscosities are mixed, mixtures with a wide variety of zero viscosities and / or shear behaviors can be produced, which are better suited for the desired application, preferably at different shear rates.A fitting can, for example, be a pull-out guide with two or more rails or a hinge with two or more fitting plates. A mixture is a substance made up of at least two pure substances. A pure substance is a substance made up of only one chemical compound or only one chemical element. "Viscosity," denoted by the Greek letter ^, is understood in this application to be the dynamic shear viscosity of fluids, specifically liquids or gases. "Zero viscosity" is ^. 0 In this application, the dynamic shear viscosity of fluids, specifically liquids or gases, at a shear rate of 0 s -1understood. The formulation that "the at least one second fluid in the form of a pure substance before mixing with the first fluid has a zero viscosity that is preferably 10 times to 200,000 times, particularly preferably 100 times to 10,000 times higher than the first fluid in the form of a pure substance before mixing with the at least one second fluid" is explained by way of example as follows, whereby this explanatory example is intended merely to improve understanding and is not to be understood as limiting: A mixture AB consists of a fluid A and a fluid B, which are mixed together to produce the mixture AB. The fluid A is a pure substance Arein before mixing with the fluid B and has a zero viscosity before mixing with the fluid B. A 0 Fluid B is also a pure substance before mixing with fluid A and has zero viscosity before mixing with fluid A ^ B 0The mixture AB, which is formed by mixing the pure substance A rein and the pure substance B rein has a zero viscosity ^AB 0 In a damping medium according to the invention, the zero viscosity ^B 0 of the pure substance Brein, i.e. of the at least one second fluid B in the form of a pure substance before mixing with the at least one first fluid A, greater, preferably 10 times to 200,000 times, particularly preferably 100 times to 10,000 times greater, than the zero viscosity ^A 0 of the pure substance Arein, i.e. of the at least one first fluid A in the form of a pure substance before mixing with the at least one second fluid B. The above explanatory example can also be described as follows: If the components A and B of the mixture AB are separated from each other, i.e. are present in the form of pure substances Arein and Brein, then ^A 0 < ^B 0 , preferably [10 to 200,000]·^A 0 = ^B 0, particularly preferably [100 to 10,000]·^A 0 = ^B 0 . In the event that the damping medium is a mixture comprising more than two fluids, the invention is to be understood in such a way that the fluid within the mixture with the highest zero viscosity in the form of a pure substance before mixing with the remaining fluids has a zero viscosity that is preferably 10 times to 200,000 times, particularly preferably 100 times to 10,000 times higher than the fluid within the mixture with the lowest zero viscosity in the form of a pure substance before mixing with the remaining fluids under otherwise identical conditions. In the context of this application, "otherwise identical conditions" is understood to mean that the conditions when determining the viscosities ^, in particular the zero viscosities of the pure substances A rein and B rein , concrete ^ A 0 and ^ B 0, under the same conditions as pressure p and / or temperature T. In other words, under otherwise identical conditions, this can mean that the zero viscosities of the components A and B are each determined in the form of a pure substance before mixing, specifically the pure substances A rein and B rein, under standard conditions, i.e. 0 °C and 100,000 Pa. However, “otherwise identical conditions” can also be understood to mean other environmental influences instead or in addition, such as the same radiation conditions, the same electric and / or magnetic field and / or the like. Further advantageous embodiments of the damping medium are defined in the dependent claims. According to a preferred embodiment of the damping medium 1, it can be provided that the mixture is a solution or a dispersion, preferably an emulsion. A solution is a homogeneous mixture of at least two pure substances, such as two miscible fluids. A dispersion is a heterogeneous mixture of at least two pure substances, such as a suspension on a fluid and a solid that is not soluble therein.An emulsion is a heterogeneous mixture of at least two immiscible liquids without visible demixing. According to a preferred embodiment of the damping medium 1, it can be provided that the mixture is free of fillers, preferably solid additives. A filler as a solid component of a damping medium can, on the one hand, often not achieve the desired shear behavior and, on the other hand, can have negative effects on the damping medium or a damper containing the damping medium. Furthermore, protection is sought for ^ a damper with such a damping medium, ^ a fitting with such a damper and / or such a damping medium, ^ an arrangement with such a fitting and ^ a method for producing such a damping medium.For the sake of completeness, it should be noted that in the claims and the description of this invention, the numerals used, such as one, two, three, and the like, basically only describe the minimum number of a feature of the damping medium according to the invention, the damper according to the invention, the fitting according to the invention, and the arrangement according to the invention. Individual features or components can, of course, also be present in larger numbers. For example, damping media according to the invention can have more than at least one second fluid, dampers according to the invention can have more than one damping housing, one piston, and / or at least one damping chamber, fittings according to the invention can have more than one damping device with more than one damper, arrangements according to the invention can have more than at least one first structure, at least one second structure, and / or one fitting, etc. In this sense, for example, the numeral "one," "two," etc.as far as reasonable to be understood in the sense of at least one, at least two, etc. Further details and advantages of the invention are explained in more detail below with reference to the description of the figures and the drawings, in which: Fig. 1 to 5 show various views of an exemplary embodiment of a damper, Fig. 6 to 10 show various views of an exemplary embodiment of a fitting with a damper, Fig. 11 and 12 show a view of an exemplary embodiment of an arrangement with a fitting in a retracted and an extended position, Fig. 13 to 15 show various shear curves of a first fluid, a second fluid, a reference fluid and a mixture of the first fluid and the second fluid, and Fig. 16 shows a block diagram of a method for producing a damper medium in the form of a mixture.Figures 1, 2, 3, 4 and 5 show a damper 2 for a fitting 3, preferably a furniture fitting, wherein the damper 2 has a damper housing 4, at least one damping chamber 5 for receiving a damping medium 1 and a piston 6 movable relative to the damper housing 4 in the damping chamber 5, wherein the damping medium 1 according to the invention is provided in the at least one damping chamber 5, preferably wherein the at least one damping chamber 5 is sealed with at least one seal 12, particularly preferably made of acrylonitrile butadiene rubber NBR. Fig. 1 shows an exploded view of the damper 2. As shown in Fig. 1, the damper 2 may comprise a damping housing 4 in the form of a cylinder 17, a cylinder cover 18, a spring element 19, a spring end 20, a seal 12, a piston 6, a piston rod 21 and a piston disc 22. The spring element 19 may be arranged between the cylinder cover 18 and the spring end 20.The piston rod 21 can run from the outside into the damping housing 4 and can be guided through holes in the cylinder cover 18, the spring end 20 and the seal 12 up to the piston 6. At one end of the piston rod 21, which is located inside the damping housing 4, 17 during the operating state, the piston 6 can be fastened with a piston disc 22. Fig. 2 shows a side view of the damper 2 from Fig. 1, with the piston 6 together with the piston rod 21 in the extended state. Fig. 3 shows a sectional view of the damper 2 from Fig. 3. As shown in Fig. 3, a damping chamber 5, in which the damping medium 1 can be present, can be provided inside the damper 2, specifically within the damping housing 4 and the cylinder 17. The damping chamber 5 can be limited on one side by the seal 12 and on the remaining sides by the cylindrical and closing inner wall of the cylinder 17.Within the damping chamber 5 and surrounded by the damping medium 1, the piston 6 can move either towards the seal 12 or the end of the cylinder 17 opposite the seal 12. Fig. 4 shows a side view of the damper 2 from Fig. 1, with the piston 6 in the retracted state. Fig. 5 shows a sectional view of the damper 2 from Fig. 4. In contrast to Fig. 3, the spring element 19 is more strongly compressed in the retracted state. This is because when the piston 6 including the piston rod 21 transitions from the extended state (Figs. 2 and 3) to the retracted state (Figs. 4 and 5), an excess pressure is generated in the damping chamber 5, which can be absorbed by the spring element 19. In Fig.3 shows that when the piston 6 begins to move into the retracted state, specifically when the piston 6 moves to the right, the damping medium 1 can flow laterally between the piston 6 and the cylindrical inner wall of the cylinder 17. What is not visible in Fig. 3 is that the damping medium 1 can also flow through two holes in the piston 6 and the piston disc 22. The holes in the piston 6 and the piston disc 22 are visible in Fig. 1. The cylindrical inner wall of the cylinder 17 can, as shown in Figs. 3 and 5, be conical from approximately the middle of the cylinder length. This makes it increasingly difficult for the damping medium 1 to flow between the piston 6 and the cylindrical inner wall as the piston 6 moves from the extended to the retracted state. The flow of the damping medium 1 through the holes in the piston 6 and the piston disc 22, however, is always possible unhindered.Figures 6, 7, 8, 9, and 10 show a fitting 3, preferably a furniture fitting, for the movable mounting of at least one first, preferably movable, structure 13 relative to at least one second, preferably stationary, structure 14. The fitting 3 has a damping device 15 with a damper 2 for the damped movement of the at least one first structure 13 relative to the at least one second structure 14. The damper 2 has a damping medium 1 according to the invention and / or the damper 2 is designed according to the invention. A structure can be, for example, a window, a door, a chest of drawers, a cupboard, and the like. A movable structure can be, for example, a glass window, a house / room door, a drawer, a cupboard door, a flap, and the like. A stationary structure can be, for example, a window frame, a door frame, a wall, a wall, a furniture body, and the like. Fig.Fig. 6 shows a perspective view of the fitting 3 in the form of a pull-out guide. The pull-out guide can have a first, preferably movable, rail 23, drawer rail, a second, preferably fixed, rail 24, cabinet rail, and a damping device 15. The damping device 15 can dampen a movement of the first rail 23 relative to the second rail 24. Fig. 7 shows a perspective view of the fitting 3 from Fig. 6, wherein a cover element of the damping device 15 is hidden. Thus, the damper 2 of the damping device 15 can be easily identified. Fig. 8 shows a detailed view of the fitting 3 from Fig. 7, wherein the damper 2 is particularly visible. The damper 2 can be attached to the second rail 25, the cabinet rail of the pull-out guide, and can be operatively connected to the first rail 24 via the piston rod 21.In the case shown, the piston 6 and thus also the piston rod 21 are in the retracted state. Fig. 9 shows a side view of the fitting 3 from Fig. 6. Fig. 10 shows a side view of the fitting 3 from Fig. 7. What has been said so far about the damper 2 applies analogously to the damping device 15. Figures 11 and 12 show an arrangement 16, preferably furniture, comprising: ^ at least one first, preferably movable, structure 13, ^ at least one second, preferably fixed, structure 14 and ^ a fitting 13, preferably a furniture fitting, for the movable mounting of the at least one first structure 13 relative to the at least one second structure 14, wherein the fitting 3 is designed according to the invention. Fig. 11 shows a perspective view of the arrangement 16 in the form of furniture. The first, preferably movable, structures 13 are designed as drawers 27 in this case.The second, preferably fixed, structure 14 is designed in this case as a furniture body 28. The top drawer 27 of the arrangement 16 has been hidden for clarity. In Fig. 11, a fitting 3 can be seen on a side wall of the furniture body 28, which is in the form of a pull-out guide and is in the retracted state. Fig. 12 shows a perspective view of the arrangement 16 in the form of the furniture from Fig. 11, with the fitting 3 in the extended state. This shows a damping device 15 which is arranged between the first rail 23 and the side wall of the furniture body 28. What has been said so far about the fitting 3 applies analogously to the arrangement 16. Figures 13, 14 and 15 show a diagram with four shear curves of four materials, where the X-axis represents the shear rate ẏ in s. -1and the Y-axis represents the viscosity ^ in mPas. The X-axis and the Y-axis are logarithmically scaled. The four different substances in Figs. 13 to 15 are pure substance A (short dash line), pure substance B (dash-dot line), pure substance C (solid line), and mixture AB (long dash line). Fig. 13 shows a shear rate range of 1 s -1 up to 1,000,000 s -1 and a viscosity range from 100 mPas to 1,000,000 mPas. Fig. 14 shows the same shear rate range but a narrower viscosity range from 100 mPas to 10,000 mPas. Fig. 15 shows a narrower shear rate range of 1,000 s -1 up to 1,000,000 s -1and a narrower viscosity range of 200 mPas to approximately 2,500 mPas. The mixture AB from Figures 13 to 15 is a damping mixture 1, namely a damping medium 1 for use in a damper 2 for a fitting 3, preferably a furniture fitting, wherein the damper 2 has a damper housing 4, at least one damping chamber 5 for receiving the damping medium 1 and a piston 6 which is movable relative to the damper housing 4 in the damping chamber 5, wherein the damping medium 1 is a mixture, wherein the mixture has a first fluid 7, preferably a first liquid, and at least one second fluid 8, preferably a second liquid, wherein the at least one second fluid 8 in the form of a pure substance has been diluted, preferably 10 times to 200,000 times, particularly preferably 100 times to 10000 times higher zero viscosity than the first fluid 7 in the form of a pure substance before mixing with the at least one second fluid 8 under otherwise identical conditions. The following applies to the embodiment of Figures 13 to 15: ^ The pure substance A is the first fluid 7 and has a zero viscosity ^A. 0 of 1,500 mPas. ^ The pure substance B is the second fluid 8 and has zero viscosity ^ B 0 of 1,000,000 mPas. ^ The mixture AB consists of the pure substance A and the pure substance B and has a zero viscosity ^AB 0 of 10,000 mPas. The mass fraction of pure substance A is 80% and the mass fraction of pure substance B is 20%. ^ Pure substance C is a reference fluid and has zero viscosity ^A 0of 5,200 mPas. According to a preferred embodiment of the damping medium 1, it can be provided that the first fluid 7 has a zero viscosity between 100 mPas and 1,500 mPas, preferably between 200 mPas and 1,000 mPas, and / or the at least one second fluid 8 has a zero viscosity between 500,000 mPas and 20,000,000 mPas, preferably between 1,000,000 mPas and 16,000,000 mPas. This has the technical effect that the zero viscosity of the damping medium, specifically of the mixture AB, can be adjusted over a wide range, specifically between 1,500 mPas and 1,000,000 mPas. According to a preferred embodiment of the damping medium, it can be provided that the viscosity of the mixture ^ at low shear rates, preferably up to 100 s -1 , greater than 8,000 mPas, and ^ at high shear rates, preferably from 1,000 s -1 up to 100,000 s -1 , particularly preferred from 10,000 s -1 up to 100,000 s -1, and under otherwise identical conditions is less than 8,000 mPas. According to a preferred embodiment of the damping medium, it can be provided that the viscosity of the mixture ^ at low shear rates, preferably up to 100 s -1 , greater than 3,000 mPas, and ^ at high shear rates, preferably from 1,000 s -1 up to 100,000 s -1 , particularly preferred from 10,000 s -1 up to 100,000 s -1 , and under otherwise identical conditions is less than 3,000 mPas. According to a preferred embodiment of the damping medium, it can be provided that the viscosity of the mixture ^ at low shear rates, preferably up to 100 s -1 , greater than 500 mPas, and ^ at high shear rates, preferably from 1,000 s -1 up to 100,000 s -1 , particularly preferred from 10,000 s -1 up to 100,000 s -1, and under otherwise identical conditions is less than 500 mPas. This has the technical effect that the shear behavior of the damping medium, specifically of the mixture AB, corresponds to a higher viscosity fluid at low shear rates but to a low viscosity fluid at high shear rates. According to a preferred embodiment of the damping medium, it can be provided that the viscosity of the mixture at shear rates within the application range 9 of the damping medium 1, preferably within the effective application range 29 of the damping medium 1, particularly preferably from 1,000 s -1 up to 100,000 s -1 , especially preferred from 10,000 s -1 up to 100,000 s -1, smaller, preferably by a factor of 2 to 10 smaller, than the viscosity of the mixture at lower shear rates outside the application range 9, preferably outside the effective application range 29, particularly preferably up to 100 s -1 , and under otherwise identical conditions. The application range is the shear rate range in which the damping medium is used. The application range can range from 1 s -1 up to 100,000,000 s -1 range, with a typical application range of 1 s -1 up to 1,000,000 s -1is sufficient. Instead of the application range, an effective application range can also be used. The effective application range is that range of the shear rate in which the damping effect of the damping medium occurs at least predominantly, and / or that range of the shear rate in which the gradient, i.e. the increase, of the function of the viscosity as a function of the gravity speed is not zero. The damping effect can be particularly necessary at higher shear rates, for example in order to dampen the closing movement of a drawer 27, see Figs. 11 and 12. If a drawer 27 is closed by a user with momentum, a relatively high shear rate can initially act on the damping medium 1, at which a low-viscosity shear behavior may be desired.Shortly before reaching the closed end position of the drawer 27, the closing speed of the drawer may be lower due to a braking effect, which also results in a lower shear rate than before. During this phase of closing the drawer 27, a highly viscous shear behavior of the damping medium 1 may be desired.According to a preferred embodiment of the damping medium, it can be provided that ^ a shear curve of the mixture 10, which results from a function of the viscosity as a function of the gravity velocity, approaches a shear curve of a pure substance 11 with a zero viscosity that is lower than the zero viscosity of the mixture as the shear velocity increases and / or ^ a shear curve of the mixture 10, which results from a function of the viscosity as a function of the gravity velocity, intersects a shear curve of a pure substance 11 with a zero viscosity that is lower than the zero viscosity of the mixture at least once as the shear velocity increases. The shear curve of the mixture 10 in Fig. 15 is the shear curve of the mixture AB (line with long dashes). The shear curve of the pure substance 11 in Fig. 15 is the shear curve of the pure substance C, which can be used as a reference fluid (solid line). In Fig.14 and 15 it can be seen that the shear curve 10 of the mixture AB (line with long dashes) intersects the shear curve of the pure substance C (solid line) twice. This means that the mixture AB has a higher viscosity before the first intersection point, then a lower viscosity up to the second intersection point, and after the second intersection point a higher viscosity again than the pure substance C. The technical effect resulting from the shear curve of the mixture 10 approaching the shear curve of the pure substance 11 and / or intersecting the shear curve of the pure substance 11 at least once is as follows: A damping medium 1, specifically the mixture AB, can thus be provided which has a higher viscosity in a certain, preferably low, shear rate range and a lower viscosity in another, preferably higher, shear rate range than another damping medium, specifically the pure substance 11, the reference fluid C.In this way, the damping medium 1, the mixture AB, is better adapted to the respective application than the other damping medium, reference fluid C. According to a preferred embodiment of the damping medium 1, it can be provided that the mixing ratio of the first fluid 7 to the at least one second fluid 8 is between 1:1 and 25:1, preferably between 2:1 and 7:1, particularly preferably between 3:1 and 5:1. In a preferred exemplary embodiment, it can be provided that the mixture 10 contains at least the same amount of the first fluid 7 and the at least one second fluid 8, or more of the first fluid 7 than of the at least one second fluid 8, in other words more of the thinner fluid than of the thicker fluid. In a preferred exemplary embodiment, it can be provided that the mixing ratio of the first fluid 7 to the at least one second fluid 8 is 4:1.This has the technical effect that, within the limits defined by the first fluid 7 and the at least one second fluid 8, both the zero viscosity of the damping medium 1 and the shear behavior can be flexibly adjusted. According to a preferred embodiment of the damping medium 1, the first fluid 7 and / or the at least one second fluid 8 can be a silicone oil, preferably a polydimethylsiloxane (PDMS), a modified polydimethylsiloxane, and / or a copolymer of polydimethylsiloxane. The material selection of the first fluid 7 and the at least one second fluid 8 allows the limits of the adjustable zero viscosity and the shear behavior of the damping medium 1 to be determined. The material selection in conjunction with the mixing ratio of the first fluid 7 and the at least one second fluid 8 enables individual adaptation of the zero viscosity and the shear behavior of the damping medium 1.Thus, the approach and / or intersection of the shear curve of the damping medium 1 with the shear curve of a reference fluid C can also be flexibly adapted. For example, the intersection point of the shear curves of the damping medium 1 and the reference fluid C can be generated at a preferred shear rate and / or at a preferred viscosity. Fig. 16 shows a block diagram of a method for producing a damper medium 1 with the following method steps: ^ Providing a first fluid 7, preferably a first liquid, in the form of a pure substance with a first zero viscosity, ^ Providing at least one second fluid 8, preferably a second liquid, in the form of a pure substance with a second zero viscosity, wherein the second zero viscosity of the at least one second fluid 8 is higher than the first zero viscosity of the first fluid 7, ^ Combining the first fluid 7 and the at least one second fluid 8 to form a mixture.In Fig. 16 the first zero viscosity is ^7. 0 of the first fluid 7 before joining with the at least one second fluid 8 is less than the second zero viscosity ^8 0 of the at least one second fluid 8 before joining with the first fluid 7. After joining, a damping medium 1 is produced in the form of a mixture of the first fluid 7 and the at least one second fluid 8, wherein the zero viscosity ^1 0 of the mixture between the first zero viscosity ^7 0 of the first fluid 7 and the second zero viscosity ^8 0of the at least one second fluid 8. List of reference symbols: 1 damping medium 2 damper 3 fitting 4 damper housing 5 damping chamber 6 piston 7 first fluid 8 second fluid 9 area of ​​application 10 shear curve of the mixture 11 shear curve of a pure substance 12 seal 13 first structure 14 second structure 15 damping device 16 arrangement 17 cylinder 18 cylinder cover 19 spring element 20 spring end 21 piston rod 22 piston disc 23 first rail 24 second rail 25 mounting plate 26 intermediate rail 27 drawer 28 furniture body 29 effective area of ​​application

Claims

Patent claims 1. Damping medium (1) for use in a damper (2) for a fitting (3), preferably a furniture fitting, wherein the damper (2) has a damper housing (4), at least one damping chamber (5) for receiving the damping medium (1), and a piston (6) movable relative to the damper housing (4) in the damping chamber (5), wherein the damping medium (1) is a mixture, the mixture comprising a first fluid (7), preferably a first liquid, and at least one second fluid (8), preferably a second liquid, characterized in that the at least one second fluid (8) in the form of a pure substance before mixing with the first fluid (7) has a zero viscosity that is preferably 10 times to 200,000 times, particularly preferably 100 times to 10,000 times higher than the first fluid (7) in the form of a pure substance before mixing with the at least one second fluid (8) under otherwise identical conditions.Damping medium (1) according to claim 1, wherein the mixture is a solution or a dispersion, preferably an emulsion.

3. Damping medium (1) according to claim 1 or 2, wherein the mixture is free of fillers, preferably solid additives.

4. Damping medium (1) according to one of the preceding claims, wherein the first fluid (7) has a zero viscosity between 100 mPas and 1,500 mPas, preferably between 200 mPas and 1,000 mPas, and / or the at least one second fluid (8) has a zero viscosity between 500,000 mPas and 20,000,000 mPas, preferably between 1,000,000 mPas and 16,000,000 mPas.

5. Damping medium (1) according to one of the preceding claims, wherein the viscosity of the mixture ^ at low shear rates, preferably up to 100 s -1 , is greater than 8,000 mPas, and ^ at high shear rates, preferably from 1,000 s -1 up to 100,000 s -1 , particularly preferred from 10,000 s -1 up to 100,000 s-1 , and under otherwise identical conditions is less than 8,000 mPas.

6. Damping medium (1) according to one of the preceding claims, wherein the viscosity of the mixture ^ at low shear rates, preferably up to 100 s -1 , greater than 3,000 mPas, and ^ at high shear rates, preferably from 1,000 s -1 up to 100,000 s -1 , particularly preferred from 10,000 s -1 up to 100,000 s -1 , and under otherwise identical conditions is less than 3,000 mPas.

7. Damping medium (1) according to one of the preceding claims, wherein the viscosity of the mixture ^ at low shear rates, preferably up to 100 s -1 , greater than 500 mPas, and ^ at high shear rates, preferably from 1,000 s -1 up to 100,000 s -1 , particularly preferred from 10,000 s -1 up to 100,000 s -1, and under otherwise identical conditions is less than 500 mPas.

8. Damping medium (1) according to one of the preceding claims, wherein the viscosity of the mixture at shear rates within the application range (9) of the damping medium (1), preferably within the effective application range (29) of the damping medium (1), particularly preferably from 1,000 s -1 up to 100,000 s -1 , especially preferred from 10,000 s -1 up to 100,000 s -1 , smaller, preferably by a factor of 2 to 10 smaller than the viscosity of the mixture at lower shear rates outside the application range (9), preferably outside the effective application range (29), particularly preferably up to 100 s -1, and under otherwise identical conditions.

9. Damping medium (1) according to one of the preceding claims, wherein ^ a shear curve of the mixture (10), which results from a function of the viscosity as a function of the gravity velocity, approaches a shear curve of a pure substance (11) with a zero viscosity that is lower than the zero viscosity of the mixture as the shear velocity increases, and / or ^ a shear curve of the mixture (10), which results from a function of the viscosity as a function of the gravity velocity, intersects a shear curve of a pure substance (11) with a zero viscosity that is lower than the zero viscosity of the mixture at least once as the shear velocity increases.Damping medium (1) according to one of the preceding claims, wherein the mixing ratio of the first fluid (7) to the at least one second fluid (8) is between 1:1 and 25:1, preferably between 2:1 and 7:1, particularly preferably between 3:1 and 5:

1.

11. Damping medium (1) according to one of the preceding claims, wherein the first fluid (7) and / or the at least one second fluid (8) is a silicone oil, preferably a polydimethylsiloxane (PDMS), a modified polydimethylsiloxane and / or a copolymer of polydimethylsiloxane.

12. Damper (2) for a fitting (3), preferably a furniture fitting, wherein the damper (2) has a damper housing (4), at least one damping chamber (5) for receiving a damping medium (1), and a piston (6) movable relative to the damper housing (4) in the damping chamber (5), characterized in that the damping medium (1) according to one of claims 1 to 11 is provided in the at least one damping chamber (5), preferably wherein the at least one damping chamber (5) is sealed with at least one seal (12), particularly preferably made of acrylonitrile butadiene rubber (NBR).Fitting (3), preferably a furniture fitting, for the movable mounting of at least one first, preferably movable, structure (13) relative to at least one second, preferably fixed, structure (14), wherein the fitting (3) has a damping device (15) with a damper (2) for the damped movement of the at least one first structure (13) relative to the at least one second structure (14), characterized in that the damper (2) has a damping medium (1) according to one of claims 1 to 11 and / or the damper (2) is designed according to claim 12.

14. Arrangement (16), preferably furniture, comprising: ^ at least one first, preferably movable, structure (13), ^ at least one second, preferably fixed, structure (14) and ^ a fitting (13), preferably a furniture fitting, for the movable mounting of the at least one first structure (13) relative to the at least one second structure (14). characterized in that the fitting (3) is designed according to claim 13.

15. Method for producing a damper medium (1), preferably according to one of claims 1 to 11, characterized by the following method steps: ^ Providing a first fluid (7), preferably a first liquid, in the form of a pure substance with a first zero viscosity, ^ Providing at least one second fluid (8), preferably a second liquid, in the form of a pure substance with a second zero viscosity, wherein the second zero viscosity of the at least one second fluid (8) is higher than the first zero viscosity of the first fluid (7), ^ Combining the first fluid (7) and the at least one second fluid (8) to form a mixture.

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