Wheel arrangement

Description

[0001] The present invention relates to a roller assembly comprising a roller and a roller suspension, wherein the roller has a roller axle body and a roller body with a roller axle receiving opening, and the roller body is rotatably mounted on the roller axle body, which is passed through the roller axle receiving opening, wherein the roller axle body is mounted in insertion channels of the roller suspension with at least two elastic damping elements interposed.

[0002] From the prior art, such as AT 520732 A4, roller arrangements for conveyor systems, in particular for transport trolleys in rack storage systems for unit loads, are known. Such floor-bound, rail-guided transport trolleys are also referred to as shuttles or transfer trolleys.

[0003] Such roller assemblies comprise at least one, usually fork-shaped, roller suspension and a roller with a roller body and a roller axle body. At least one additional damping element may be provided for damping purposes. Furthermore, in the generic AT 520732 A4, a clip is provided laterally next to the damping element to detachably connect the roller to the roller suspension.

[0004] A disadvantage of the current state of the art is that many individual parts of a damped roller assembly are necessary, resulting in mechanical weak points and / or many wear surfaces.

[0005] The object of the present invention is therefore to at least partially eliminate the disadvantages of the prior art and to provide an improved roller arrangement compared to the prior art.

[0006] This problem is solved by a roller arrangement having the features of claim 1.

[0007] In a roller arrangement according to the preamble of claim 1, it is therefore provided according to the invention that the roller axle body is clamped in a fastening position by means of the damping elements in the insertion channels of the roller suspension.

[0008] A roller arrangement according to the invention thus provides a damped fastening of the roller in the roller suspension without one or more clips, which leads to an improved roller arrangement by saving individual parts.

[0009] Thus, the elastic damping elements fulfill a dual function, namely the previously known damping of vibrations in the roller assembly and additionally the attachment of the roller to the roller suspension.

[0010] In a preferred embodiment, it can be provided that the roller axle body is secured in the mounting position exclusively by means of the damping elements clamping in the insertion channels of the roller suspension.

[0011] In this context, the exclusive fastening of the roller axle body in the insertion channels of the roller suspension means that the fastening is achieved exclusively through the elasticity of the damping elements, at least in the form of a force-fit, preferably a friction-fit.

[0012] Additionally, positive-locking connections may be present between the respective damping element and the roller suspension. These can be used, for example, to stabilize the position when bringing about or maintaining the mounting position and to prevent unintentional slippage of the damping elements relative to the insertion channels.

[0013] A roller suspension is a device to which the roller can be attached, or in other words, suspended.

[0014] In a preferred embodiment, the roller suspension may be designed as a single piece.

[0015] In a preferred embodiment, the roller suspension may be designed in one piece and constructed from a single material.

[0016] In a preferred embodiment, it can be provided that the roller suspension a tensile strength in the range of 50 MPa to 300 MPa and / or a modulus of elasticity in the range of 1,500 MPa to 35,000 MPa exhibits.

[0017] A roller can have a rim and a tread. The rim, the tread, and / or other parts of the roller can be made of different materials or a single material.

[0018] In a preferred embodiment, the roller may be made from one or more types of plastics.

[0019] The roller axle mounting opening can be designed as a recess passing through the roller, through which the roller axle body can be passed.

[0020] The roller axle body is a physically existing body. The roller axis of rotation can pass through it and / or it can represent the roller axis of rotation itself.

[0021] In a preferred embodiment, the roller axle body can be a rotationally symmetrical, physically existing body, most preferably a cylindrical body.

[0022] In a preferred embodiment, the roller axle body may have a hollow cylindrical base body, wherein the hollow cylindrical base body may be closed at one end with a cover.

[0023] In a preferred embodiment, the roller axle body may be designed in a pin-shaped and / or bolt-shaped manner.

[0024] In a preferred embodiment, it can be provided that the roller axle body a tensile strength in the range of 20 MPa to 300 MPa and / or a modulus of elasticity in the range of 1,500 MPa to 35,000 MPa exhibits.

[0025] The roller body can have, in addition to a body with a running surface, also a bearing for smooth mounting of the roller body on the roller axle body.

[0026] In a preferred embodiment, the bearing of the roller body can be a plain bearing or a rolling bearing, preferably a roller bearing or a ball bearing.

[0027] One or both damping elements can be made of one or more materials.

[0028] In a preferred embodiment, it can be provided that one of the, preferably the, damping elements is formed in one piece or that each of them is formed in one piece.

[0029] In a preferred embodiment, it can be provided that one of the, preferably the, damping elements is formed in one piece and is made of a single material or are each.

[0030] In a preferred embodiment, it can be provided that one of the, preferably the, damping elements a tensile strength in the range of 10 MPa to 60 MPa and / or a modulus of elasticity in the range of 50 MPa to 300 MPa and / or a hardness in the range of 50 Shore A to 64 Shore D exhibits(s).

[0031] The insertion channels are structural elements of the roller suspension, designed to clamp the roller axle body together with the two damping elements.

[0032] In a preferred embodiment, it can be provided that the insertion channels are each designed with a U-shaped cross-section.

[0033] The mounting position of the roller assembly is an end position intended for the normal operation of the roller assembly, in which the roller axle body is mounted in the insertion channels of the roller suspension with at least two elastic damping elements interposed.

[0034] In other words, the mounting position is an end position in which the roller axle body is mounted in insertion channels of the roller suspension with at least two elastic damping elements interposed, and wherein preferably the two elastic damping elements abut at least one stop, preferably two stops, of the roller suspension.

[0035] In a preferred embodiment, the roller assembly may have an electrical through-resistance, preferably in a range of 10 3< to 10 12< ohms.

[0036] It may also be provided that the roller assembly is electrically insulating.

[0037] The roller assembly, specifically the roller suspension, roller, axle body, roller body, and / or damping elements, may be made of plastic, preferably one or more of the following types: polyolefins, polyamides (PA), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyetheretherketone (PEEK), polyketone (PEK), polyphenylene sulfide (PPS), or polyoxymethylene (POM). Reinforcing materials may be provided to strengthen the base material, preferably one or more of the aforementioned plastics, in the roller assembly, specifically the roller suspension, roller, axle body, roller body, and / or damping elements. These reinforcing materials may include one or more of the following: glass, carbon, aramid, or basalt.

[0038] Reinforcing materials can be provided in the form of reinforcing fibers, preferably carbon fibers, in the base material of the roller assembly with a mass fraction in the range of 5% to 60% and / or with a fiber length in the range of 0.1 mm to 15 mm.

[0039] Carbon fibers can also be referred to as carbon fiber, carbon fiber or carbon fiber.

[0040] The roller assembly as a whole or parts thereof, specifically the roller suspension and / or the roller and / or the roller axle body and / or the roller body and / or the damping elements, may preferably be made of plastic, wherein the plastic has electrically conductive fibers, preferably carbon fibers.

[0041] An antistatic effect prevents static build-up, particularly as a result of the roller assembly rolling on different tracks. The presence of other electrically conductive fibers and / or particles and / or an electrically conductive coating could also be incorporated for antistatic purposes.

[0042] To improve plain bearings, such as a pivot bearing in a track roller assembly, an incorporated lubricant can be provided – that is, a lubricant integrated into or arranged within the material of the respective component. The incorporated lubricant for the track roller assembly, specifically for the track roller suspension and / or the track roller and / or the track roller axle body and / or the track roller body and / or the damping elements, can be one or more of the following materials: polytetrafluoroethylene (PTFE), high-density polyethylene (HD-PE), ultra-high molecular weight polyethylene (UHMW-PE), perfluoropolyether (PFPE), molybdenum disulfide (MoS₂), graphite, siloxane, or oil.

[0043] Incorporated lubricants can be provided in the form of filler particles in the material of the roller assembly with a mass fraction in the range of 0.2% to 30%.

[0044] For the sake of completeness, it should be noted that in the description of this invention, the numerical terms used, such as one, two, three, and the like, generally only describe the minimum quantity of a feature of the roller assembly according to the invention. Individual features or components can, of course, be present in larger numbers. For example, roller assemblies according to the invention can have more than one roller, more than two damping elements, etc. In this sense, the numerical term "one" should be understood, where appropriate, as meaning at least one, etc.

[0045] Further advantageous embodiments of the arrangement are defined in the dependent claims.

[0046] According to a preferred embodiment of the roller assembly, it is provided that the roller axle body can be inserted into and removed from the insertion channels of the roller suspension by means of elastic deformation of at least one of the damping elements.

[0047] According to a preferred embodiment of the roller assembly, it is provided that the roller axle body can be inserted into and removed from the insertion channels of the roller suspension by means of elastic deformation of the damping elements.

[0048] According to a preferred embodiment of the roller arrangement, the roller axle body is harder than at least one of the damping bodies.

[0049] According to a preferred embodiment of the roller arrangement, the roller axle body is provided to be harder than the damping bodies.

[0050] In a preferred embodiment, it can be provided that the roller axle body a tensile strength which is two to five times greater than the tensile strength of one of the, preferably the, damping elements, and / or a modulus of elasticity which is two to 30 times greater than the modulus of elasticity of one of the, preferably the, damping elements, exhibits.

[0051] According to a preferred embodiment of the roller arrangement, it is provided that at least one of the damping elements in the mounting position rests directly against at least one wall of the roller suspension, which borders one of the insertion channels.

[0052] According to a preferred embodiment of the roller arrangement, it is provided that the damping elements are located in the

[0053] The mounting position is to be directly against at least one wall of the roller suspension, which borders one of the insertion channels.

[0054] According to a preferred embodiment of the roller arrangement, it is provided that at least one of the damping elements is designed as a cap attached to one end of the roller axle body, preferably removable without damage.

[0055] According to a preferred embodiment of the roller arrangement, the damping elements are designed as caps placed on each end of the roller axle body, preferably removable without damage.

[0056] In another embodiment, it can be provided that at least one of the, preferably the, damping elements is or are designed as a cap or caps placed on one end of the roller axle body, preferably non-removable, preferably by means of a molding process.

[0057] According to a preferred embodiment of the roller arrangement, it is provided that at least one of the damping elements in the mounting position forms a snap-fit ​​connection with at least one wall of the roller suspension, which limits one of the insertion channels, in addition to the clamping fastening.

[0058] According to a preferred embodiment of the roller arrangement, it is provided that the damping elements in the mounting position, in addition to the clamping fastening, each form a snap-fit ​​connection with at least one wall of the roller suspension which limits one of the insertion channels.

[0059] In a snap-fit ​​connection, the parts to be joined are aligned by positive locking and can be releasably fixed by spring force. Such snap-fit ​​connections are known in a wide variety of designs, the following of which represents a particularly preferred embodiment.

[0060] According to a preferred embodiment of the roller assembly, the locking connection has a locking connection projection as the first locking connection element and a locking connection receptacle into which the locking connection projection can be elastically engaged as the second locking connection element, wherein one of the locking connection elements is formed on one of the damping bodies and the other of the locking connection elements is formed on a wall of the roller suspension which limits one of the insertion channels.

[0061] According to a preferred embodiment of the roller assembly, it is provided that the respective locking connection has a locking connection projection as a first locking connection element and a locking connection receptacle, into which the locking connection projection can be elastically engaged, as a second locking connection element, wherein one of the locking connection elements is formed on one of the damping bodies and the other of the locking connection elements is formed on a wall of the roller suspension, which limits one of the insertion channels.

[0062] In a preferred embodiment, it can be provided that the locking connection projection and / or the locking connection receptacle is formed on and / or in the roller suspension.

[0063] In a preferred embodiment, the snap-fit ​​projection and / or the snap-fit ​​receptacle may be elastically and / or elastically mounted, preferably rounded. The snap-fit ​​projection may be designed as a stud.

[0064] According to a preferred embodiment of the roller assembly, the insertion channels are designed to extend longitudinally between an insertion opening for inserting the respective damping element, preferably pointing downwards in an operating position of the roller assembly, and a stop for the respective damping element, wherein the respective damping element rests against the respective stop in the mounting position.

[0065] The operating position of the roller assembly is the position that the roller assembly assumes during intended use.

[0066] It is also conceivable to design the insertion channels differently than in the embodiments shown below, so that a roller is not inserted into the insertion channels parallel to the pivot axis of the roller suspension, but instead perpendicular to the pivot axis of the roller suspension. The insertion channels can run horizontally in the operating position of the roller assembly when driving on a horizontal surface. For this embodiment, please refer to AT 520732 A4.

[0067] In a preferred embodiment, the damping element can be positioned so that half of its circumference, preferably 180° of its circumference, rests against a stop on the roller suspension in the mounting position. These stops on the roller suspension can define the respective insertion channels.

[0068] According to a preferred embodiment of the roller arrangement, it is provided that at least one of the damping bodies has a protruding collar and at least one wall of the roller suspension, which limits one of the insertion channels, has a collar receiving channel for receiving the collar.

[0069] According to a preferred embodiment of the roller arrangement, it is provided that the damping bodies each have a projecting collar and at least one wall of the roller suspension, which limits one of the insertion channels, has a collar receiving channel for receiving the collar.

[0070] In a preferred embodiment, the collar receiving channel for receiving the collar may be a groove and form a positive locking connection with the protruding collar of the at least one damping element inserted into an insertion channel.

[0071] In a preferred embodiment, it can be provided that at least one of the, preferably the, damping bodies has or have a cylindrical base body, wherein preferably the base body is a hollow cylinder and is closed at one end with a cover, wherein the cover particularly preferably has the projecting collar and / or a snap-fit ​​projection and / or a snap-fit ​​receptacle.

[0072] In a preferred embodiment, the collar receiving channel may have a groove extending at least partially longitudinally, wherein the groove of the collar receiving channel extends from the insertion opening to the stop.

[0073] According to a preferred embodiment of the roller assembly, the roller suspension is designed as a fork with two fork arms, wherein one of the insertion channels is formed in each of the fork arms, and / or the roller suspension is pivotably mounted or supported about a pivot axis, preferably orthogonal to the roller axle body.

[0074] In a preferred embodiment, the fork may be formed in one piece.

[0075] In a preferred embodiment, the fork may be designed in one piece and constructed from a single material.

[0076] In a preferred embodiment, a pivot bearing may be provided in and / or on the roller suspension, wherein the roller assembly is connected or connectable to a conveyor system, such as a carriage or carriage arrangement, by means of the pivot bearing, and the roller suspension is pivotably mounted or supported about a pivot axis of the pivot bearing, preferably orthogonal to the roller axle body.

[0077] The swivel bearing can be designed as a swivel plain bearing or as a swivel roller bearing, preferably as a swivel ball bearing or swivel roller bearing.

[0078] In a preferred embodiment, the swivel bearing can be designed as a component of the track roller suspension – in other words, directly as a part of the track roller suspension. However, the swivel bearing can also be manufactured as a separate component and then installed in the track roller suspension.

[0079] By using a swivel bearing in the form of a swivel sliding bearing, two sliding surfaces can slide along each other with the lowest possible coefficients of friction.

[0080] In a preferred embodiment, it can be provided that one of the sliding surfaces has metal, preferably steel, or is made of metal, preferably steel, and the other of the sliding surfaces has plastic or is made of plastic.

[0081] In a preferred embodiment, it can be provided that the sliding surfaces and / or the pivot bearing and / or an entire component of the roller assembly and / or the entire roller assembly has an incorporated lubrication.

[0082] Examples of incorporated lubricants in the pivot bearing include fluoropolymers, polyolefins, silicones, sulfides such as MoS₂, graphite in various forms, siloxanes, or oils. These incorporated lubricants can be embedded directly into the material of the roller suspension.

[0083] Further details and advantages of preferred embodiments of the invention are explained in more detail below with reference to the figures and the drawings. These show: Fig. 1: a perspective view of a conveyor system with six roller assemblies according to the invention; Fig. 2: a perspective exploded view of an embodiment of a roller assembly according to the invention; Figs. 3 to 7: various views and representations of the roller assembly made of Fig. 2 Figures 8 to 14: different views of the roller of the roller assembly Fig. 2with or without damping element; Figs. 15 to 20: each an uncut side view and a cut view of three embodiments for the connection of a roller assembly to a fitting.

[0084] Fig. 1 shows a perspective view of a conveyor system 22 in the form of a carriage with six roller arrangements according to the invention 1.

[0085] A conveyor system 22 can, as shown here by way of example, have three container areas, each of which can be provided with a roller arrangement 1 on both sides.

[0086] The roller arrangements 1 allow the conveyor system 22 to be moved, preferably rolled, in at least one direction on the track 23.

[0087] Fig. 2 Figure 1 shows a perspective exploded view of an embodiment of a roller assembly according to the invention.

[0088] As in Fig. 2As shown, the roller assembly (1) comprises a roller (2) and a roller suspension (3), wherein the roller (2) has a roller axle body (4) and a roller body (5) with a roller axle receiving opening (6), and the roller body (5) is rotatably mounted on the roller axle body (4) passing through the roller axle receiving opening (6), wherein the roller axle body (4) is mounted in insertion channels (9, 10) of the roller suspension (3) with at least two elastic damping elements (7, 8) interposed, and wherein the roller axle body (4) is clamped in a fixing position in the insertion channels (9, 10) of the roller suspension (3) by means of the damping elements (7, 8).

[0089] The roller suspension 3 is in Fig. 2In this embodiment, the fork is constructed in one piece and accordingly has a first fork arm 19, a second fork arm 20 and a fork ship 25 connecting the fork arms 19, 20.

[0090] On the inside of the first fork arm 19 and the second fork arm 20 are the first insertion channel 9 and the second insertion channel 10, wherein in Fig. 2 Only the first insertion channel 9 is visible.

[0091] As in Fig. 2 As shown, the insertion channels 9, 10 can have an insertion opening 15 arranged at the lower edge of the respective fork arm 19, 20, through which the roller 2 can be inserted by means of the damping elements 7, 8, preferably from bottom to top, parallel to the pivot axis 21.

[0092] As in Fig. 2As shown, the fork carriage 25 can have a pivot axis 21, preferably extending orthogonally to the roller axle body 4, about which the roller suspension 3 can be pivotally mounted or is mounted. The fork carriage 25 thus has a pivot bearing for this pivot axis 21, wherein, as in the exemplary embodiment in Fig. 2 As shown, the pivot bearing is an integral part of the roller suspension 3.

[0093] The roller 2 can, as in Fig. 2 shown, comprising a roller body 5, a roller axle body 4, a cover 26 for each of the two end faces of the roller body 5 and a first damping body 7 and a second damping body 8 for each end face of the roller axle body 4.

[0094] The roller body 5 has the roller axle receiving opening 6, which forms a through hole in the center of the roller body 5, through which the roller axle body 4 can be passed.

[0095] The roller axle body 4 can be a cylindrical component which has a first end 11 and a second end 12, wherein preferably one of the damping bodies 7, 8 is arranged at each of the ends 11, 12.

[0096] Figs. 3 to 7 show different views and representations of the roller assembly 1 from Fig. 2 .

[0097] Fig. 3 shows a perspective view of the roller assembly 1 in the mounting position.

[0098] Fig. 4 shows a sectional view of the roller assembly 1 in the mounting position from Fig. 3 , wherein the cutting plane runs parallel to the pivot axis 21 and parallel to the roller rotation axis 24 through the center of the running roller 2.

[0099] Fig. 5 shows a sectional view of the roller assembly 1 in the mounting position from Fig. 3 , wherein the cutting plane is orthogonal to the pivot axis 21 and parallel to the roller rotation axis 24 through the center of the running roller 2.

[0100] In the Figs. 3 to 5 It is clearly visible that the roller 2 is connected to the roller suspension 3 via the interposition of the first damping element 7 and the second damping element 8. In the position shown, the roller 2 is located between the fork arms 19 and 20 of the roller suspension 3, with the damping elements 7 and 8 being inserted along the insertion channels 9 and 10, starting at the insertion openings 15 of the first insertion channel 9 and the second insertion channel 10, up to the stop 16, preferably to the stops 16, of the insertion channels 9 and 10. The position shown corresponds to the mounting position of the roller assembly 1.

[0101] In this illustrated embodiment, if, in addition to the mounting position, the insertion channels 9, 10 point downwards, for example, if the roller assembly 1 is arranged at the bottom of a conveyor system 22, the roller assembly 1 is also in the operating position in this embodiment. The operating position can also be in Fig. 1 be recognized.

[0102] The stops 16 of the insertion channels 9, 10 can be designed in the form of a semicircular end of the insertion channels 9, 10.

[0103] As in Figs. 6 and 7 As can be seen particularly well, the first insertion channel 9 and the second insertion channel 10 each have an insertion opening 15.

[0104] The first insertion channel 9 and / or the second insertion channel 10 can be provided with at least one collar receiving channel 18, preferably combined, in order to guide the at least one collar 17 of the first damping body 7 and / or the second damping body 8 along the first insertion channel 9 and / or the second insertion channel 10 into the fastening position and to hold it there by means of a positive locking mechanism.

[0105] As in the Figs. 3 to 7 As can be seen, it may be provided that the collar receiving channel 18 of one of the two insertion channels 9, 10 forms a stop 16 at the end of the respective insertion channel 9, 10 by means of a semicircular course.

[0106] The roller axle body 4, and thus the roller 2, are clamped to the roller suspension 3 in the mounting position, preferably exclusively, by means of the damping elements 7 and 8. For this purpose, the damping elements 7 and 8 are advantageously elastically deformed when inserted into the respective insertion channels 9 and 10. In a simple embodiment, this type of clamping fastening can even be based purely on friction.

[0107] In the embodiment shown here, in addition to the frictional connection, at least one locking projection 13 of the first damping element 7 and / or the second damping element 8 is engaged in at least one locking receptacle 14 of the first fork arm 19 and / or the second fork arm 20 when the roller assembly 1 is in its mounted position. This ensures that the roller assembly 1 remains in the mounted position, preferably in addition to the clamping connection, by positive locking and / or prevents the damping elements from slipping. Furthermore, the engagement of the damping elements 7 and 8 in their respective insertion channels 9 and 10, as well as the stops 16, provide an additional positive locking connection of the roller axle body 4, and thus of the roller 2, to the roller suspension 3 in the mounted position.

[0108] Fig. 6shows a perspective view of the roller arrangement 1, where the roller 2 is not in the mounting position.

[0109] Fig. 7 Figure 1 shows a sectional view of the roller assembly 1, where roller 2 is also not in its mounted position. The section plane runs orthogonally to the pivot axis 21 and parallel to the roller rotation axis 24 through the roller rotation axis 24 of the roller axle body 4 of roller 2.

[0110] Figs. 8 to 14 show different views of roller 2 of roller assembly 1. Fig. 2 with or without damping elements 7, 8.

[0111] Fig. 8 shows a perspective view of the roller 2 including roller body 5 and roller axle body 4 without the damping bodies 7 and 8.

[0112] Fig. 9 shows a top view of roller 2 from Fig. 8 .

[0113] Fig. 10shows a front view of roller 2 from Fig. 8 .

[0114] Fig. 11 shows a perspective view of the roller 2 together with the roller body 5, the roller axle body 4 and the two damping bodies 7, 8, whereby only the first damping body 8 is visible.

[0115] Fig. 12 shows a sectional view of roller 2 from Fig. 11 , wherein the cutting plane passes through the roller rotation axis 24.

[0116] Fig. 13 shows a perspective view of the roller 2 together with the roller body 5 and the roller axle body 4, in comparison to the Fig. 11 Neither of the two damping elements 7, 8 is shown.

[0117] Fig. 14 shows a sectional view of roller 2 from Fig. 13 , wherein the cutting plane passes through the roller rotation axis 24.

[0118] In Figs. 13 and 14It is evident that the roller axle body 4 can be a hollow cylindrical component with one closed end and one open end, wherein in Fig. 13 The open end is evident.

[0119] In the Figs. 4, 5, 7 , 12 and 14 The bearing of the roller 2 can be particularly well identified. The bearing can be a plain bearing designed as a separate component or as an integrated part of the roller 2, or, as shown in this embodiment, a rolling bearing 27, specifically a ball bearing.

[0120] The illustrated rolling bearing 27, as part of the roller 2, connects the roller body 5 with the roller axle body 4 and transmits forces, preferably compressive forces, between these two components, while simultaneously reducing the rolling friction during the rotation of the roller body 5 about the roller axis of rotation 24.

[0121] To protect the rolling bearing 27 from external influences such as contamination or mechanical impacts, covers 26 are provided on both end faces of the roller 2, so that the rolling bearing 27 is shielded to the outside, preferably completely.

[0122] Figs. 15 to 20 Figure 1 shows an uncut side view and a cut side view of three embodiments for connecting a roller assembly 1 to a fitting 28 of a conveyor system 22.

[0123] Figs. 15 and 16 Figure 1 shows a first embodiment of a connection of a roller assembly 1 to a fitting 28 by means of a pin 29. A washer 30 is arranged between the fork carriage 25 of the roller assembly 1 and the fitting 28, both on the upper and lower sides of the roller suspension 3.

[0124] The pin 29 and the washers 30 allow forces to be transmitted between the fitting 28 and the pivot bearing of the roller assembly 1. This provides a pivotable mounting for the roller assembly 1.

[0125] Thus, in this first embodiment, sliding occurs between the washers 30, the pin 29, and the roller suspension 3.

[0126] Figs. 17 and 18 In contrast to the first embodiment, they show Figs. 15 and 16 a connection of the roller assembly 1 to the fitting 28 without intermediate washers 30. Instead of the washers 30 made from the Figs. 15 and 16 In this second embodiment, the fork-shaped carriage 25 of the roller suspension 3 has a low projection on both the top and bottom of the roller suspension 3.

[0127] Thus, in this second embodiment, there is a sliding motion between the fitting 28 and the pin 29 and the projections of the roller suspension 3.

[0128] Figs. 19 and 20 show, in contrast to the first and second embodiments from Figs. 15 to 18 a connection of the roller assembly 1 to the fitting 28 with a washer 30 arranged on the underside of the roller suspension 3. The washer arranged on the top side of the roller suspension 3 made of Figs. 15 and 16 and the projection arranged on the upper side of the roller suspension 3 made of Figs. 17 and 18 was replaced by a correspondingly designed pin head of the pin 29. The pin head of the pin 29 and the fitting 28 are designed such that the pin 29 enables both the connection of the roller assembly 1 to the fitting and provides a bearing surface for the upper side of the roller suspension 3.

[0129] Thus, in this third embodiment, sliding occurs between the pin 29, in particular the pin head, and between the washer 30 and the roller suspension 3.

[0130] The illustrated embodiments are not to be understood as limiting, but can be combined with one another depending on the requirements. For example, it is conceivable that in one embodiment, washers 30 are combined with projections of the roller suspension 3, or in other words, washers 30 rest on projections of the roller suspension 3. It can also be provided that the pin 29 is secured by means of a wide pin head, as in Fig. 20 shown, or a collar spaced apart from the pin head rests on a washer 30 or directly on the roller suspension 3.

[0131] As already explained, in the illustrated embodiments it can be provided that one of the sliding surfaces, preferably of the pin 29 and / or the fitting 38, has metal, preferably steel or aluminium, or is made of metal, preferably steel, and the other of the sliding surfaces, preferably of the roller suspension 3, has plastic or is made of plastic.

[0132] In a preferred embodiment, at least one of the sliding surfaces can be part of a fitting 28 of a conveyor system 22 and / or part of a pin 29, and another sliding surface can be part of the roller arrangement 1, preferably the roller suspension 3.

[0133] As already explained, in the illustrated embodiments it can be provided that the sliding surfaces and / or the pivot bearing, preferably the pivot sliding bearing, of the roller suspension 3 and / or a part of the roller assembly, preferably the roller suspension 3, and / or the entire roller assembly 1 has an incorporated lubrication.

[0134] To achieve a particularly favorable coefficient of friction, it can be provided that the sliding during the pivoting of the roller assembly 1 is carried out by means of the pivoting sliding bearing between at least one sliding surface made of metal and at least one sliding surface made of plastic, preferably made of plastic with incorporated lubricants.

[0135] The pivot bearing, preferably the pivot slide bearing, of the roller assembly 1 and / or the roller assembly 1 as a whole can have a load-bearing capacity of 1,000 N, preferably 4,000 N. Preferably, as also provided in the examples here, part of the pivot slide bearing is formed directly in the roller suspension 3. Legend for the reference numbers:

[0136] 1. Roller assembly 2. Roller 3. Roller suspension 4. Roller axle body 5. Roller body 6. Roller axle mounting opening 7. First damping element 8. Second damping element 9. First insertion channel 10. Second insertion channel 11. First end of roller axle body 12. Second end of roller axle body 13. Detent connection projection 14. Detent connection receptacle 15. Insertion opening 16. Stop 17. Collar 18. Collar mounting channel 19. First fork arm 20. Second fork arm 21. Swivel axis 22. Conveyor system 23. Raceway 24. Roller pivot axis 25. Fork carriage 26. Cover 27. Roller bearing 28. Fitting 29. Pin 30. Washer

Claims

1. Track roller assembly (1) comprising a track roller (2) and a track roller suspension (3), wherein the track roller (2) has a track roller axle body (4) and a track roller body (5) with a track roller axle receptacle opening (6), and the track roller body (5) being rotatably mounted on the track roller axle body (4) which is guided through the track roller axle receptacle opening (6), wherein the track roller axle body (4) being mounted in insertion channels (9, 10) of the track roller suspension (3) with at least two elastic damping members disposed therebetween, characterised in that the track roller axle body (4) is fastened in a clamping manner in a fastening position by means of the damping members (7, 8) in the insertion channels (9, 10) of the track roller suspension (3).

2. Track roller assembly (1) according to claim 1, wherein the track roller axle body (4) is introducible into the insertion channels (9, 10) of the track roller suspension (3) and removable therefrom by elastic deformation of at least one of the damping members (7, 8), preferably the damping members (7, 8).

3. Track roller assembly (1) according to claim 1 or 2, wherein the track roller axle body (4) is harder than at least one of the damping members (7, 8), preferably the damping members (7, 8).

4. Track roller assembly (1) according to one of claims 1 to 3, wherein at least one of the damping members (7, 8), preferably the damping members (7, 8), bears or bear directly on at least one wall of the track roller suspension (3) that delimits one of the insertion channels (9, 10) in the fastening position, preferably in each case.

5. Track roller assembly (1) according to one of claims 1 to 4, wherein at least one of the damping members (7, 8), preferably the damping members, comprises a cap or caps and, preferably each, is attached to an end (11, 12) of the track roller axle body (4), preferably in a non-destructibly removable manner.

6. Track roller assembly (1) according to one of claims 1 to 5, wherein at least one of the damping members (7, 8), preferably the damping members, forms or form a latching connection in the fastening position, in addition to the clamping fastening, preferably in each case, with at least one wall of the track roller suspension (3) that delimits one of the insertion channels (9, 10).

7. Track roller arrangement (1) according to claim 6, wherein the, preferably respective, latching connection has a latching connection protrusion (13) as a first latching connection element and a latching connection receptacle (14), into which the latching connection protrusion (13) can be elastically latched, as a second latching connection element, wherein one of the latching connection elements is formed on one of the damping members (7, 8) and the other of the latching connection elements is formed on a wall of the track roller suspension (3) that delimits one of the insertion channels (9, 10).

8. Track roller assembly (1) according to one of claims 1 to 7, wherein the insertion channels (9, 10) are in each case elongate and extend between an introduction opening (15) for introducing the respective damping member (7, 8) and a detent (16) for the respective damping member (7, 8), preferably wherein in an operating position of the track roller assembly (1) the introduction opening (15) points downward, wherein the respective damping member (7, 8) in the fastening position bears on the respective detent.

9. Track roller assembly (1) according to one of claims 1 to 8, wherein at least one of the damping members (7, 8), preferably the damping members (7, 8), has a projecting collar (17) and at least one wall of the track roller suspension (3) that delimits one of the insertion channels (9, 10) has a collar receptacle channel (18) for receiving the collar (17).

10. Track roller arrangement (1) according to one of claims 1 to 9, wherein the track roller suspension (3) comprises a fork with two fork arms (19, 20), wherein one of the insertion channels (9, 10) is formed in each of the fork arms (19, 20), and / or wherein the track roller suspension (3) is mountable or is mounted so as to be pivotable about a pivot axis (21) that runs preferably orthogonally to the track roller axle body (4).