EP3020898B1 - Roller carriage for mounting a sliding door - Google Patents

Description

The present invention relates to a roller carriage for receiving a sliding door and a sliding door system with a roller track and at least one roller carriage mounted displaceably on the roller track.

It is known that different types of doors can be used to lock doors. In particular, sliding doors can be used. These sliding doors are usually provided with sliding door leaves which are held in corresponding clamping devices of a roller carriage. In order to ensure the sliding functionality, roller carriages of this type are used in roller tracks, which in turn are attached to the wall and / or the ceiling above the door opening. In the known solutions, a movement is carried out between an open and a closed position of the sliding door. Corresponding storage devices, in particular rollers, run on the roller track. During this movement, it is possible that vibrations from the roller track are introduced into the roller carriage. It is also conceivable that vibrations are introduced into the roller carriage by the sliding door. Since a large number of individual components are often combined with one another here, and in particular the connection between the roller carriage and the roller track is only designed in a suspended manner, this particular vibration can lead to noise emissions. The structure-borne noise generated and transmitted in the respective body is emitted by at least one of the bodies and in this way as an acoustic frequency by the user reinforce the entire system of the sliding door system and in this way further reinforce the negative impression of loud moving. The volume when moving a sliding door is often perceived by the user as one of the main criteria when it comes to assessing the quality of the sliding door system. Thus, a sliding door that moves loudly represents a poor or inferior product in the perception of the user of the sliding door system.

The document DE 40 02 487 A1 discloses a sliding door fitting with a roller carriage. The roller carriage has a plastic housing on which two pairs of rollers are mounted. Furthermore, the roller carriage has a support pin for holding a sliding door. The support pin is received in a transverse bore of the plastic housing via a transverse bolt made of polyurethane, that is to say an elastic material, and is thus supported on the latter. Due to its high elasticity, polyurethane has structure-borne sound dampening properties over an entire sound-conducting area.

It is the object of the present invention to at least partially remedy the disadvantages described above. In particular, it is the object of the present invention to improve the smoothness of a roller carriage in a cost-effective and simple manner. The above object is achieved by a roller carriage with the features of claim 1 and a sliding door system with the features of claim 10. Further features and details of the invention emerge from the dependent claims, the description and the drawings. Features and details that are described in connection with the roller carriage according to the invention naturally also apply in connection with the sliding door system according to the invention and vice versa, so that with regard to the disclosure of the individual aspects of the invention, reference is or can always be made to each other.

According to the invention, a roller carriage is provided for receiving a sliding door. This roller carriage has a roller module for sliding attachment to a roller conveyor. Next is a Base body intended for attachment to the sliding door.

The roller module is made of a first material and the base body is made of a second material. The first material conducts structure-borne sound in a first sound-conducting area and this first material dampens the structure-borne sound in a second sound-conducting area. The second material conducts the structure-borne sound in the second sound-conducting area and in turn attenuates the structure-borne sound in the first sound-conducting area.

A roller carriage according to the invention has in particular at least two components, namely the roller module and the base body. Of course, further components can also be provided and / or these two components can be composed of individual bodies. In the context of the present invention, a roller carriage is an overall system which fulfills at least two functions. On the one hand, the roller module enables sliding attachment on the roller track. The second function is the fastening of the sliding door. This can, for example, be a clamping fastening.

According to the invention, the roller module and the base body are separate components or separate bodies. Each of these two components, that is to say the roller module and / or the base body, can itself have one Have a plurality of items that are interconnected. For example, the roller module can have corresponding storage devices in the form of rotatably mounted rollers. The base body can have a large number of individual components, such as, for example, further devices for additional functions. In addition to a height adjustment device, this can also be a securing device, a fixing device or also a clamping device, by means of which the sliding door can be fastened to the base body.

In principle, the direction of movement by means of the roller carriage is open according to the invention. A movement along a straight line can be carried out here in exactly the same way as a movement along a curved or multiply curved movement line is conceivable within the scope of the present invention.

A displaceable attachment to a roller track is to be understood specifically for the respective embodiment of the storage. If, for example, storage devices are provided in the form of individual rollers, these rollers are inserted into a corresponding roller track. If, for example, a sliding bearing is provided, the roller module is attached to a corresponding slide rail or to a corresponding slide rail.

According to the invention, there is now a correlation between two different materials in the roller carriage. A design made of a first material and a second material is understood to mean that the roller module has, at least for the most part, the first material or the second material with regard to its acoustic effectiveness. Of course, add-on parts or other components can also have other materials. But especially in one The two materials, that is to say the first material and the second material, are exclusively or essentially exclusively arranged in the force path between the accommodated sliding door and the roller track.

A sound guide area can refer to the type of sound, for example. In the guiding function of a material, i.e. within a body, the sound will propagate as structure-borne sound in different directions. In particular, a distinction must be made between a longitudinal wave and a transverse wave. A sound guide area can define exactly one of these two orientations or directions of propagation of the sound. It is therefore conceivable that the first material has a damping property in the longitudinal wave range, while the second material has a damping effect for transverse waves. The corresponding conductive property is also designed to be complementary. Of course, different sound-conducting areas can also overlap.

Sound-conducting areas can additionally or alternatively also differentiate between other types of sound. In particular, different frequencies and / or different frequency amplitudes can be used to differentiate between different sound guide areas.

It is crucial that at least in small sections, the two materials are mutually dampened. In other words, this means that structure-borne sound that is generated or absorbed in the first material is at least partially damped by this second material by the corresponding, complementary damping property of the second material. In the opposite way a structure-borne sound, which arises in the second material or is absorbed by it, is attenuated by the first material in precisely this sound-conducting area due to the complementary damping property. In the event that the damping property is present directly in the material for the type of structure-borne sound in which the structure-borne sound is generated or absorbed, the damping even takes place within the material.

As has been explained above, the two materials have a sound-specific complementary effect, so to speak, or at least partially sound-specific complementary effect to one another. This means that structure-borne sound, regardless of the side from which it is introduced into the respective material, or structure-borne sound, regardless of which of the two materials it arises, is superimposed by the opposite material or by the same material with a damping property. Due to this independence of the type of sound, attenuation is achieved which can be achieved by a specific combination of materials. Without additional damping functions or damping devices, this surprisingly found combination of materials provides damping that either completely prevents structure-borne noise within the system of the roller carriage or dampens it within the transmission in the roller carriage. The prevention of structure-borne sound or the attenuation of structure-borne sound leads to the fact that a user of such a sliding door system perceives the movement of the sliding door between different positions as being significantly quieter and thus of higher quality. In order to ensure a corresponding forwarding or transmission of structure-borne noise between the individual components of a roller carriage, these are usually or advantageously connected to one another. So can between the first material and the second material is in sound-transmitting contact. This can be provided by making direct contact between the base body and the roller module. Intermediate components that transmit acoustically are of course also conceivable within the meaning of the present invention.

It can be advantageous if, in a roller carriage according to the invention, the roller module has a transmission section and the base body has a counter-transmission section, the transmission section in particular making flat contact with the counter-transmission section. This means that there is direct contact between the roller module and the base body. A flat contact can in particular be a flat contact. This contact is now used to provide a transmission of structure-borne noise between the two materials of the roller module and the base body. The larger the corresponding area for such a transmission, the more effectively the corresponding damping property of the complementary material can act on the associated material. The complementary damping effect according to the invention is reinforced in this way, so that the function of damping or avoiding structure-borne noise can be further improved in this way. The contact is preferably formed in two or more directions, so that the corresponding transmission of structure-borne noise can also be made available in two or more directions. In particular, different transmission directions are perpendicular or substantially perpendicular to one another, so that the contacting section and the counter-transferring section are also formed perpendicular or substantially perpendicular to one another. This leads to structure-borne sound waves that are in particular perpendicular or substantially perpendicular to one another through one and the same Transmission section or counter-transmission section can be transmitted. The roller module has, in particular, a first surface, for example a side surface of the roller module, which is preferably in contact with the base body in a region between 80% and 100% of this surface. A contact surface between these two components that is enlarged in this way leads to improved sound transmission and thus to an improved damping effect according to the invention.

It is also advantageous if the base body and / or the roller module are monolithic in a roller carriage according to the invention. This is to be understood in particular as an integral or one-piece design of the respective component. In this way, clear advantages can be achieved during production. The monolithic design of the respective component also has the advantage that within the component a uniform and thus predictable propagation of the structure-borne noise is made available. In this way, additional built-in components or negative influences or reinforcements of the structure-borne noise that has arisen or that are recorded are avoided even further. The damping properties can be improved in this way.

• Dichte zwischen 7 kg/dm³ und 9 kg/dm³
• Schub-Modul zwischen 70 kN/mm² und 90 kN/mm²
• E-Modul zwischen 180 kN/mm² und 240 kN/mm²

According to the invention, it is also advantageous if, in a roller carriage according to the invention, the first material of the roller module has at least one of the following material parameters:

• Density between 7 kg / dm ³ and 9 kg / dm ³
• Shear modulus between 70 kN / mm ² and 90 kN / mm ²
• E-module between 180 kN / mm ² and 240 kN / mm ²

The above list is not an exhaustive list. In particular, the density is in the range of approx. 7.9 kg / dm ³ , the shear modulus in the range of 80 kN / mm ² and the modulus of elasticity in the range of approx. 210 kN / mm ² . The above parameters will later be related in more detail to other parameters, and form an exemplary embodiment possibility for properties of the first material which provide properties according to the invention with regard to their sound specificity.

• Dichte zwischen 6 kg/dm³ und 8 kg/dm³
• Schub-Modul zwischen 30 kN/mm² und 50 kN/mm²
• E-Modul zwischen 70 kN/mm² und 100 kN/mm²

It is also advantageous if, in a roller carriage according to the invention, the second material of the base body has at least one of the following material parameters:

• Density between 6 kg / dm ³ and 8 kg / dm ³
• Shear modulus between 30 kN / mm ² and 50 kN / mm ²
• E modulus between 70 kN / mm ² and 100 kN / mm ²

The above list is not an exhaustive list. For the second material, the modulus of elasticity can preferably be in the range of approx. 85 kN / mm ² , the shear modulus in the range of 40 kN / mm ² and the density in the range of approx. 6.7 kg / dm ³ . Corresponding correlations can also be achieved here in a particularly simple and cost-effective manner in order to provide the complementary damping property according to the invention between the first and second material.

• Dichte zwischen 7 kg/dm³ und 9 kg/dm³
• Schub-Modul zwischen 70 kN/mm² und 90 kN/mm²
• E-Modul zwischen 180 kN/mm² und 240 kN/mm²

It is also advantageous if, in a roller carriage according to the invention, the base body has a glass clamp with at least one of the following material parameters:

• Density between 7 kg / dm ³ and 9 kg / dm ³
• Shear modulus between 70 kN / mm ² and 90 kN / mm ²
• E-module between 180 kN / mm ² and 240 kN / mm ²

The above list is not an exhaustive list. In particular, the first material of the roller module is used for the glass clamp. For example, the glass clamp can have a modulus of elasticity in the range of approx. 210 kN / mm ² , a shear module in the range of 80 kN / mm ² and a density in the range of approx. 7.9 kg / dm ³ . Corresponding correlations which can lead to the formation of the damping material effect according to the invention are also shown here later. In particular, reference should be made to the multiplication of the attenuation if not only a first material pairing is provided between the first and second material, but a concatenation of three or more material pairings. Particular attention should be paid to an alternating design of the different materials so that, for example, components are strung together as follows: component 1 with the first material, component 2 with the second material and component 3 with the third material. The corresponding row of contacts accordingly provides component 1 on component 2 and component 2 on component 3. In this way, the damping effect can be further strengthened, so to speak, as a damping cascade or damping chain. In particular, such a cascade is designed as a roller track, roller module, base body and glass clamp along the force path. In particular, the following combination options as a cascade are conceivable for the individual components: COMPONENT 1 PART 2 COMPONENT 3 PART 4 Roller track Role module Base body Glass clamp Role module Base body Glass clamp -.- Roller track Role module Base body -.-

It is also advantageous if, in a roller carriage according to the invention, the base body has a U-shaped glass clamp for a clamping fastening of the sliding door. This can in particular be the glass clamp according to the preceding paragraph. A U-shaped design, in particular in the form of two U-shaped glass clamps, which are arranged at both ends of the base body, allows a particularly simple and inexpensive attachment option for the sliding door. The respective glass clamp thus also serves to pick up structure-borne noise from the sliding door, which is picked up from there and passed on or is generated in the sliding door. When fastening using a correspondingly U-shaped glass clamp, this U-shaped glass clamp can, for example, become deformed. It is preferred, however, if this U-shaped glass clamp has at least one displaceable clamping plate which can enlarge or reduce a gap within the opened U. The clamping force and thus the clamping effect can thus be applied to the sliding door by reducing the corresponding gap. The glass clamp is designed in particular with a material as explained in the preceding paragraph. The glass clamp can bear against the base body, in particular flat, for improved transmission of the sound between these two components. Partial or complete encompassing of the base body by the glass clamp is also conceivable within the scope of the present invention.

It is also advantageous if, in a roller carriage according to the invention, the roller module is non-positively, positively locked with the base body and / or is frictionally connected, in particular by means of fastening screws. A force fit, a form fit and / or a frictional fit is used in particular to provide the corresponding possibility of transmission of structure-borne noise. Only this possibility of transmission allows the damping properties to be exchanged, so to speak, in a complementary way between the two materials and made available to the respective neighboring material. Of course, two or more different types of connection can also be used in combination with one another for the purposes of the present invention.

In a roller carriage according to the invention, the roller module has a storage device with at least one, in particular at least two rotatable rollers. In principle, any form of bearing device can be used, including a sliding bearing or even a linear drive with a corresponding sliding bearing. In order to further reduce the formation of structure-borne noise, however, it is advantageous to design the bearing device with at least one role. A significant reduction in vibration can thus be achieved by varying the sliding friction to rolling friction. The formation of structure-borne noise is already reduced before the damping effect according to the invention occurs. The individual rollers are preferably mounted on ball bearings and have a reduced roughness on their surface.

• Dichte zwischen 1 kg/dm³ und 2 kg/dm³
• Schub-Modul zwischen 2 kN/mm² und 6 kN/mm²
• E-Modul zwischen 2 kN/mm² und 3 kN/mm²

A further advantage can be if, in a roller carriage according to the invention, this at least one roller is made of plastic, in particular with one of the following material parameters:

• Density between 1 kg / dm ³ and 2 kg / dm ³
• Shear modulus between 2 kN / mm ² and 6 kN / mm ²
• E-module between 2 kN / mm ² and 3 kN / mm ²

The above list is not an exhaustive list. The modulus of elasticity is preferably in the range of approx. 2.6 kN / mm ² , the shear modulus in the range of approx. 4 kN / mm ² and the density preferably in the range of approx. 1.4 kg / dm ³ .

According to the invention, the modulus of elasticity of the first material to the modulus of elasticity of the second material is between 1.5: 1 and 2.5: 1 and the shear modulus of the first material to the shear module of the second material is between 2.5: 1 and 3.5: 1. A longer list of possible correlations or ratios which can also be effective in accordance with the invention is given below. In particular, the same or an improved effect can also be possible with a corresponding reversal of the materials. The stronger material with regard to the functionality of the E-module and the shear module is used for the mechanically higher stressed component. In particular, the corresponding ratios are combined, as will be explained below. In addition, a sound-specific density can be defined for the respective material. A sound-specific density means that the material density is multiplied by the quotient from the modulus of elasticity divided by the modulus of shear [density x (modulus of elasticity / modulus of elasticity)]. This results in a range of approx. 10 kg / dm ³ to approx. 30 kg / dm ³ and a similar range of values for the first material for this sound-specific density second material. There are therefore three basic options in particular when selecting the two materials. It is thus conceivable to form both materials within the scope of one or more value ranges of the individual parameters and to pay attention to the requirement of the complementary damping according to the invention. It is also conceivable to generate the complementary damping on the basis of the parameter ratios listed. Another possibility is the selection of at least one parameter for one of the two materials, the corresponding parameter for the second material then resulting from the specified ratios. The relationships described in the following list, in which the sound-specific density is between the individual components, are decisive. In the following, for the modulus of elasticity, the shear modulus, the density and the sound-specific density, it is detailed which ratio ranges can provide the specific effect here in the context of the present invention.

Thrust module:

• 2,5 : 1 : 2,5 bis 2,5 : 1 : 3,5
• 3,5 : 1 : 2,5 bis 3,5 : 1 : 3,5

Roller module: base body = 2.5: 1 to 3.5: 1
Base body: glass clamp = 1: 2.5 to 1: 3.5
Roller module: Base body: Glass clamp:

• 2.5: 1: 2.5 to 2.5: 1: 3.5
• 3.5: 1: 2.5 to 3.5: 1: 3.5

E-module:

• 1,5 : 1 : 1,5 bis 1,5 : 1 : 2,5
• 2,5 : 1 : 1,5 bis 2,5 : 1 : 2,5

Roller module: base body = 1.5: 1 to 2.5: 1
Base body: glass clamp = 1: 1.5 to 1: 2.5
Roller module: Base body: Glass clamp:

• 1.5: 1: 1.5 to 1.5: 1: 2.5
• 2.5: 1: 1.5 to 2.5: 1: 2.5

Density:

• 1 : 1,5 : 1 bis 1 : 1 : 1
• 1,5 : 1 : 1,5 bis 1 : 1 : 1

Roller module: basic body = 1: 1.5 to 1.5: 1
Base body: glass clamp = 1.5: 1 to 1: 1.5
Roller module: Base body: Glass clamp:

• 1: 1.5: 1 to 1: 1: 1
• 1.5: 1: 1.5 to 1: 1: 1

Sound specific density:

• 1 : 0,5 : 1 bis 1 : 1,7 : 1
• 0,5 : 1 : 0,5 bis 1,7 : 1 : 1,7

Roller module: base body = 1: 0.5 to 1: 1.7
Base body: glass clamp = 0.5: 1 to 1.7: 1
Roller module: Base body: Glass clamp:

• 1: 0.5: 1 to 1: 1.7: 1
• 0.5: 1: 0.5 to 1.7: 1: 1.7

These value ranges or ratios are explicitly solutions which meet the damping and conduction properties defined according to claim 1 of the present application. A material combination which lies within the following ratio ranges is accordingly, in the context of the present invention, a material pairing according to claim 1 of the present application.

It can also be advantageous if in a roller carriage according to the invention each material has a sound-specific density, which results from the material density multiplied by the quotient of the modulus of elasticity divided by the shear modulus of the respective material, the sound-specific density of the first material for the sound-specific density of the second material in the range between 1: 0.5 and 1: 1.7. This is a particularly advantageous one Correlation for achieving the complementary damping effect according to the invention. In this way, this damping function is made available, preferably independently of the type and direction of a sound.

Another object of the present invention is a sliding door system, having a roller track and at least one roller carriage according to the present invention, which is slidably mounted in the roller track. Of course, two roller carriages can also be provided in which a sliding door is already attached. A sliding door system according to the invention thus has the same advantages as have been explained in detail with reference to a roller carriage according to the invention.

Fig. 1

eine Ausführungsform eines Rollenwagens,

Fig. 2

eine Ausführungsform einer Schiebetürenanlage,

Fig. 3

eine seitliche Darstellung eines Rollenwagens in einer Rollenlaufbahn,

Fig. 4

eine seitliche Darstellung eines Rollenwagens im Querschnitt,

Fig. 5

die Darstellung der Fig. 4 in isometrischer Ansicht,

Fig. 6

eine Darstellung des Grundkörpers und des Rollenmoduls und

Fig. 7

eine abstrakte Darstellung der Korrelation der beiden Materialien hinsichtlich ihrer Eigenschaften in zwei unterschiedlichen Schallleitbereichen.

Further advantages, features and details of the invention emerge from the following description, in which exemplary embodiments of the invention are described in detail with reference to the drawings. The features mentioned in the claims and in the description can each be essential to the invention individually or in any combination. It show schematically.

Fig. 1

an embodiment of a roller carriage,

Fig. 2

an embodiment of a sliding door system,

Fig. 3

a side view of a roller carriage in a roller track,

Fig. 4

a side view of a roller carriage in cross section,

Fig. 5

the representation of the Fig. 4 in isometric view,

Fig. 6

a representation of the base body and the roller module and

Fig. 7

an abstract representation of the correlation of the two materials with regard to their properties in two different sound-conducting areas.

In Fig. 1 an embodiment of a roller carriage 10 is shown in isometric representation. This has two basic components. This involves the roller module 20 on the one hand and the base body 30 on the other hand. Both components, that is to say the roller module 20 and the base body 30, have a large number of different individual parts. These individual parts are briefly explained below.

The roller module 20 is equipped here with a storage device 26. This storage device 26 is equipped here in the form of two rollers 26a, which are rotatably mounted on a base body of the roller module 20. These rollers 26a can now be used on or in a roller track 120, as in FIG Fig. 2 and the Fig. 3 is easy to see. Furthermore, part of a height adjustment device 70 is made available on the roller module 20. The detailed components of this height adjustment device 70 are in particular in Figures 4 and 5 shown. A first adjustment means 32 is provided here, which can perform an adjustment movement with the aid of a handling interface 36. Since the first adjusting means 36 is designed here as a threaded screw in an adjusting thread 32a, a rotational movement takes place at the handling interface 36, which at the same time a linear translational movement of the first adjusting means 32 is generated. Via a corresponding contact section 34, the first adjustment means 32 is in operative connection with a mating contact section 24 of the second adjustment means 22 of the roller module 20. The explicit effect of this adjustment device is to convert the adjustment movement into an adjustment movement along the direction of gravity SKR.

As from the Fig. 1 As can be seen, the roller carriage 10 is equipped with a plurality of different assembly devices 90 which can provide different assembly functions. The already described adjustment function of the height of the sliding door 110 is provided by the assembly device 90 in the form of the height adjustment device 70. Furthermore, a mounting device 90 in the form of a securing device 50 is provided which, after the height of the sliding door 110 has been adjusted, provides a clamping fixation between the base body 30 and the roller module 20.

Another mounting device 90 is an accessory device 40, which is made available by a corresponding interface and an attached accessory module 300. In addition, an anti-lift device 60 is provided as a mounting device 90, which provides anti-lift protection against unwanted leaving of the roller carriage 10 of the position inserted in the roller track 120. A fastening device 80 is also provided as a glass clamp for a mounting device 90 in order to fasten the sliding door 110 in a clamping manner.

It is common to all assembly devices that they have at least one assembly means 92 in order to be able to carry out a corresponding assembly movement. In addition, a handling interface is provided in order to be able to carry out precisely this assembly movement with the assembly means.

Again Fig. 1 Furthermore, it can be seen that the roller carriage 10 has different sides, namely the first side 12 and the second side 14. With regard to their handling interface 96, all assembly devices are preferably from the same side, namely the first side 12 opposite to the second side 14, on which the bearing device 26 is arranged, aligned. This enables significantly easier access.

In Fig. 2 is shown how a sliding door 110 of two roller carriages 10 according to FIG Fig. 1 is held and these two roller carriages 10 are already used in the roller track 120. In a side view according to Fig. 3 the correlation of the rollers 26a with the roller track 120 can be seen particularly well.

In Fig. 6 it is easy to see how two components can basically be distinguished from one another. This involves the roller module 20 on the one hand and the base body 30 on the other hand. Here, rollers 26a of the bearing device 26 can be seen on the roller module 20, which rollers are made of plastic here. The transmission sections 21 can also be seen on the rear side, which can come into flat contact with corresponding counter-transmission sections 31 of the base body 30. The base body also has two U-shaped glass clamps 39, in which the sliding door 110 can be arranged in a clamping manner.

If the two components of the base body 30 and of the roller module 20 are fastened to one another, a material pairing according to the invention results. The two materials, that is to say the first material of the roller module 20 and the second material of the base body 30, have an acoustic property that is abstractly Fig. 7 reproduces. The corresponding conductivity of structure-borne noise is shown on the y-axis, while a corresponding distinction is made between different orientations or types of structure-borne noise on the x-axis. For example, the angle of alignment of the structure-borne noise can be plotted on the x-axis. A frequency spectrum or an amplitude spectrum can also be plotted on the x-axis. It is easy to see here that two fundamental sound guide areas I and II can be distinguished from one another. The corresponding curves that are established for the first material and the second material, that is to say for the roller module 20 and the base body 30, are aligned here in a complementary or essentially complementary manner. If a corresponding structure-borne sound now arises in the sound-guiding area 1 from this sound-guiding area 1 in the roller module 20 or is picked up by this, then this structure-borne sound that has arisen or is picked up is passed on. This structure-borne sound is transferred to the base body 30 via the transmission section 21 and the counter-transmission section 31. The base body, however, is equipped in precisely this sound-conducting area I with very poor sound conduction and thus with a damping property. The structure-borne noise will now only be distributed very slowly or not at all in the second material of the base body 30 and in this way will be attenuated with regard to its amplitude. The total amount of sound that is emitted by the system of the roller carriage is reduced in this way. Consequently show the Fig. 6 and 7th It is very clear how the complementary damping properties of the two different materials of the roller module 20 and the base body 30 make the damping effect available within the system.

The above explanation of the embodiments describes the present invention exclusively in the context of examples. Of course, individual features of the embodiments can be freely combined with one another, provided that they are technically sensible, without departing from the scope of the present invention, as defined in the appended claims.

List of reference symbols

10

Roller carriage

12th

first page

14th

second page

20th

Role module

21st

Transmission section

22nd

second adjustment means

24

Mating contact section

26th

Storage device

26a

role

30th

Base body

31

Counter transfer section

32

first adjustment means

32a

Adjustable thread

34

Contact section

36

Handling interface

38

Reinforcement rib

39

Glass clamp

40

Accessory device

50

Safety device

52

Stop device

60

Anti-lift device

70

Height adjustment device

80

Fastening device

90

Assembly device

92

Assembly means

96

Handling interface

96a

Form-fit section

100

Sliding door system

110

sliding door

120

Roller track

200

Handling tool

210

Interface section

300

Accessory module

SKR

Direction of gravity

BA

Axis of motion

I.

first sound guide area

II

second sound-conducting area

Claims (11)

1. A roller carriage (10) for accommodating a sliding door (110), including a roller module (20) for displaceably affixing to a roller running path (120), and a basic body (30) for attaching to a sliding door (110), wherein the roller module (20) includes a bearing device (26) with at least one, in particular at least two rotatable rollers (26a), wherein the roller module (20) is made from a first material and the basic body (30) from a second material, characterized in that the first material conducts structure borne sound in a first sound conducting range (I) and in a second sound conducting range (II) dampens the structure borne sound, and the second material dampens structure borne sound in the first sound conducting range (I) and conducts the structure borne sound in the second sound conducting range (II), and in that the E-modulus of the first material to the E-modulus of the second material is between 1.5:1 and 2.5:1 and/or the shear modulus of the first material to the shear modulus of the second material is between 2.5:1 and 3.5:1.
2. The roller carriage (10) according to claim 1, characterized in that the roller module (20) includes a transfer portion (21) and the basic body (30) a counter-transfer portion (31), wherein the transfer portion (21) contacts the counter-transfer portion (31) in particular two-dimensionally.
3. The roller carriage (10) according to any of the preceding claims, characterized in that the basic body (30) and/or the roller module (20) are formed monolithically.
4. The roller carriage (10) according to any of the preceding claims, characterized in that the first material of the roller module (20) has at least one of the following material parameters:

   - density between 7 kg/dm³ and 9 kg/dm³,

   - shear modulus between 70 kN/mm² and 90 kN/mm²,

   - E-modulus between 180 kN/mm² and 240 kN/mm²,

   in that the second material of the basic body (30) has at least one of the following material parameters:

   - density between 6 kg/dm³ and 8 kg/dm³,

   - shear modulus between 30 kN/mm² and 50 kN/mm²,

   - E-modulus between 70 kN/mm² and 100 kN/mm².
5. The roller carriage (10) according to any of the preceding claims, characterized in that the basic body (30) includes a glass clamp (39) having at least one of the following material parameters:

   - density between 7 kg/dm³ and 9 kg/dm³,

   - shear modulus between 70 kN/mm² and 90 kN/mm²,

   - E-modulus between 180 kN/mm² and 240 kN/mm².
6. The roller carriage (10) according to any of the preceding claims, characterized in that the basic body (30) includes a U-shaped glass clamp (39) for a clamping attachment of the sliding door (110).
7. The roller carriage (10) according to any of the preceding claims, characterized in that the roller module (20) is non-positively, positively and/or by friction contact connected to the basic body (30), in particular with attachment screws.
8. The roller carriage (10) according to claim 1, characterized in that the at least one roller (26a) is made from plastic material, in particular having one of the following material parameters:

   - density between 1 kg/dm³ and 2 kg/dm³,

   - shear modulus between 2 kN/mm² and 6 kN/mm²,

   - E-modulus between 2 kN/mm² and 3 kN/mm².
9. The roller carriage (10) according to any of the preceding claims, characterized in that each material has a sound-specific density, which results from the material density multiplied by the quotient of the E-modulus divided by the shear modulus of the respective material, wherein the sound-specific density of the first material to the sound specific density of the second material is in the range between 1:0.5 and 1:1.7.
10. A sliding door installation (100), including a roller running track (120) and at least one roller carriage (10) displaceably supported within the roller running track (120), having the features of any of the claims 1 to 9.
11. The sliding door installation (100) according to claim 10, characterized in that at least one sliding door (110) is displaceably supported in the roller running track (120) by means of at least two roller carriages (10) having the features of any of the claims 1 to 9.

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