Adjustment device with inserted roller

Abstract

The proposed solution relates to an adjustment device (2), in particular for a vehicle seat (3), comprising: a rail (20) and a carriage (1) which is movably mounted on the rail (20) and has at least one mount (10, 14) on which at least one roller (120, 130) is rotatably mounted in order to roll along the rail (20), wherein the at least one roller (120, 130) is inserted into an opening (100, 142) in the at least one mount (10, 14).

Description

[0001] Adjustment device with inserted roller

[0002] Description

[0003] The proposed solution relates to an adjustment device, a carriage for such a longitudinal adjustment device, a corresponding vehicle seat and a method for assembling such an adjustment device.

[0004] Vehicle seats are often adjustable using adjustment devices, in particular those mounted in a vehicle so as to be longitudinally adjustable, in order to enable various seating positions along the vehicle's longitudinal axis. For this purpose, the vehicle seats are mounted to a vehicle floor using longitudinal adjustment devices, for example. Such longitudinal adjustment devices have, for example, a rail fixed to the vehicle. To enable the most flexible use of a vehicle interior, the rail fixed to the vehicle can be particularly long. Such rails can also be referred to as long rails. The long rails extend, for example, over several rows of seats. Furthermore, several vehicle seats can be adjustable and mounted on the same long rail.

[0005] For example, a carriage, which can be designed as an upper rail and is slidably mounted on the vehicle-fixed rail, is engaged with the vehicle-fixed rail. The carriage carries the vehicle seat and supports it on the vehicle-fixed rail. Load rollers can be provided for this purpose, which can roll along the rail. Support rollers can also be provided for lateral support. To ensure wobble-free mounting of the carriage on the rail and, if necessary, to compensate for play, the load rollers and / or support rollers can be preloaded against the rail.

[0006] US 9,126,505 B2 describes plastic blocks for lateral vibration damping, which, however, lead to increased friction.

[0007] WO 2020 / 077209 A2 describes a spring preload for support rollers using a coil spring. However, this requires a complex design. Furthermore, the coil spring requires a significant amount of installation space.

[0008] WO 2022 / 067167 A1 describes a longitudinal adjustment device with a long rail, in which support rollers of the longitudinal adjustment device serve to provide lateral support. The support rollers are mounted on a flexible, W-shaped part. However, the manufacture and assembly of this longitudinal adjustment device is very complex.

[0009] The task is to simplify the installation of an adjustment device.

[0010] This object is achieved by an article having the features of claim 1.

[0011] According to this, an adjustment device, in particular for a vehicle seat, comprises a rail and a carriage movably mounted on the rail, having (at least) one support on which at least one roller is rotatably mounted for rolling along the rail. It is provided that the at least one roller is inserted into an opening in the support.

[0012] This is based on the realization that the forces acting on rollers of adjustment devices act in particular on the running surface of the respective roller and thus, for example, perpendicular to a rotational axis of the roller. As the roller is not rotatably mounted on an axle that is laboriously attached to a bracket, as in the known adjustment devices, but is rotatably inserted into the opening, it is possible to implement the rotatable bearing in a particularly simple manner. While in the known adjustment devices the respective axle is, for example, welded to the bracket or fastened to it with a sufficiently high-strength screw or rivet, the assembly can be designed more simply in the proposed arrangement. This simplifies the assembly of the adjustment device and consequently provides an improved adjustment device. The roller is, for example,Rotatably mounted on a hub that is supported on the bracket, especially on a stepped hub. The hub can, for example, simply rest on the bracket. During assembly, the roller can simply be inserted or clamped into the hub without any additional fastening.

[0013] For example, the hub is supported on two opposite sides of the opening and / or on one side of the bracket. This enables particularly robust mounting while simultaneously facilitating easy installation.

[0014] The hub can be designed with two support sections. These two support sections can rest on the bracket on either side of the roller. This also enables particularly robust mounting while simultaneously facilitating easy installation.

[0015] For example, the hub is pressed into a ball bearing or inserted or pressed into another bearing, such as a plain bearing. The roller is rotatably mounted on the hub via the ball bearing (or other bearing). This allows for particularly smooth adjustment. The hub can also be formed integrally with a part of a ball bearing, such as an inner bushing or the like. This allows for a reduced number of components.

[0016] For example, the hub is stepped. The hub can have a step. This can facilitate axial locking.

[0017] The opening can have a rectangular basic shape. Widening(s) can be formed on one side or on two opposite sides of the rectangular basic shape. This allows for a positive-locking insertion of an assembly with the roller.

[0018] The roller can be secured against axial movement (relative to the roller's rotation axis) relative to the bracket by an axial locking device. This prevents the roller from rubbing against the edges of the opening, thus ensuring smooth adjustment.

[0019] The axial locking device can comprise spacers arranged on opposite sides of the roller. This allows for simple and secure axial locking. In one embodiment, the spacers are each inserted into one of the widened portions of the opening. This allows for a secure, positive-locking mounting of the assembly with the roller, while maintaining a particularly simple design.

[0020] Alternatively or additionally, the axial locking device can comprise a cage that holds the roller. The cage can be made of plastic, for example, which allows for particularly cost-effective production. Furthermore, the cage can ensure smooth bearing of the roller.

[0021] For example, the cage includes one or more locking elements. The locking element(s) can be locked into the opening. This allows the cage to simply clip into the opening. This allows for particularly easy installation of the roller on the bracket, even allowing for tool-free installation.

[0022] The cage can have one or more recesses into which, for example, the hub is inserted. Each recess(es) can be inserted into one of the widened portions of the opening. This ensures secure mounting of the cage and roller.

[0023] For example, the cage is inserted into the opening from the same side of the bracket as the roller. This allows the roller to be pre-assembled into the cage as a single unit, and then the unit is mounted in the opening in one simple step.

[0024] Alternatively, the cage can be inserted into the opening from the opposite side of the bracket as the roller. This makes installation particularly easy, for example, using two fingers or pliers.

[0025] A closed edge of the opening can define a plane. The roller can, for example, rotate around a straight line parallel to this plane. This allows the roller to be supported particularly securely on the bracket.

[0026] The roller extends through the opening, for example, allowing it to be securely mounted to the bracket.

[0027] For example, the bracket has two tabs. It can be provided that an opening is formed in each of the tabs. The roller and another roller can be rotatably mounted in one of the openings. This allows secure support from both sides to be achieved by the rollers. The advantages mentioned above are particularly evident when multiple rollers are used.

[0028] The roller and the other roller can be aligned at an angle to each other. The rollers' rotational axes can be inclined to each other. This allows for a secure, play-free bearing arrangement.

[0029] For example, the rollers mounted on the bracket are designed to provide lateral support of the carriage on the rail (e.g. in relation to a vertically acting weight force).

[0030] Furthermore, it can be provided that the holder is designed as a load roller holder, wherein a weight force acting on the carriage can be introduced into the rail via the at least one roller of the load roller holder. One, two or more holders (each with one, two or more rollers) can be provided on the carriage for lateral support and / or one, two or more load roller holders for (vertical) support (in particular of weight forces), e.g. on the rail. This can significantly simplify assembly. For example, all of the rollers of the carriage are inserted into a respective opening.

[0031] Alternatively or in addition to the bracket for lateral support, the carriage may comprise a load roller bracket on which at least one roller of a load roller assembly is rotatably mounted. It may be provided that a weight force acting on the carriage can be introduced into the rail via the load roller bracket.

[0032] As mentioned, at least one roller of the load roller holder can be inserted into an opening of the load roller holder.

[0033] The at least one roller of the bracket can be mounted on the bracket so as to be rotatable about a first axis of rotation and the at least one roller of the load roller assembly can be mounted on the load roller bracket so as to be rotatable about a second axis of rotation, wherein the second axis of rotation is oriented, for example, at an angle to the first axis of rotation.

[0034] In one embodiment, the carriage comprises a base body to which the holder is attached. The base body can have one or more guide sections, which engage / engage longitudinally displaceably with one or more engagement sections of the rail. This enables secure, longitudinally displaceable mounting. The brackets of the holder can be made of metal, and the openings can be formed as holes formed in the brackets with a circumferential, closed edge. The openings can be cut and / or punched out of the brackets.

[0035] The roller can be mounted between an edge of the opening and a cage in a rotatable radially secured and / or axially secured manner.

[0036] The bracket is manufactured, for example, as a stamped and bent part and / or from a flat material. This allows for easy production of the bracket.

[0037] The trolley can comprise two spaced-apart brackets, each with two rotatably mounted casters, each inserted into an opening in the respective bracket. This provides secure support, and the advantages mentioned above are particularly evident when multiple casters are used.

[0038] The rail, for example, is designed as a long rail, which can be at least twice, at least 2.5 times, or at least three times the length of the carriage along its longitudinal axis. This is where the aforementioned advantages come into play.

[0039] According to one aspect, a carriage for an adjustment device (in particular a longitudinal adjustment device), e.g. of a vehicle seat, is specified, in particular for the adjustment device according to any embodiment described herein. The carriage comprises a load roller holder, on which at least one roller of a load roller assembly is rotatably mounted such that a weight force acting on the carriage can be introduced into the rail via the load roller holder. Furthermore, the carriage comprises a holder, on which at least one roller of a support roller assembly is rotatably mounted in order to roll along the rail, and which is designed to laterally support the carriage on the rail. It is provided that the at least one roller of the support roller assembly is rotatably inserted into an opening in the holder and / or that the at least one roller of the load roller assembly is inserted into an opening in the load roller holder.Regarding the advantages, reference is made to the above information on the support device.

[0040] According to one aspect, a vehicle seat is specified, comprising the adjustment device (in particular as a longitudinal adjustment device) and / or the carriage, each according to any embodiment described herein. Regarding the advantages, reference is again made to the above information regarding the adjustment device.

[0041] According to one aspect, a method for assembling an adjustment device is specified, in particular an adjustment device for a vehicle seat. The method comprises the following steps: inserting at least one roller into an opening of (at least) a holder (e.g., for lateral support and / or in the form of a load roller holder), in such a way that the (respective) roller is rotatably mounted on the (respective) holder; and arranging a carriage with the holder on a rail in such a way that the carriage is movably mounted on the rail, so that when the carriage moves along the rail, the roller rolls along the rail. With regard to the advantages, reference is again made to the above information on the adjustment device.

[0042] The concept underlying the invention will be explained in more detail below with reference to the exemplary embodiments illustrated in the figures. They show:

[0043] Fig. 1 shows a vehicle seat with a longitudinal adjustment device;

[0044] Fig. 2A and 2B a rail and a carriage of the longitudinal adjustment device according to Fig.

[0045] Fig. 3 the carriage according to Fig. 2A without the rail;

[0046] Fig. 4 several parts of the carriage according to Fig. 3;

[0047] Fig. 5 shows a bracket and support roller assemblies of the carriage according to Fig. 3;

[0048] Fig. 6A-6D Views of the bracket and one of the support roller assemblies according to Fig.

[0049] 5 during various assembly steps;

[0050] Fig. 7 shows the bracket and an alternatively designed support roller assembly for the carriage according to Fig. 3;

[0051] Fig. 8 is an exploded view of the bracket and the support roller assembly according to Fig. 7; Figs. 9A-9D are views of the bracket and an alternatively designed support roller assembly for the carriage according to Fig. 3 during various assembly steps; and

[0052] Fig. 10A and 10B show a carriage for the longitudinal adjustment device according to Fig. 1.

[0053] Fig. 1 shows a vehicle seat 3 with a seat part 30 and a backrest 31. The backrest 31 is pivotally mounted on the seat part 30. The vehicle seat 3 can be mounted on a vehicle floor 4 and is mounted as shown in Fig. 1. The vehicle seat 3 further comprises an adjustment device 2 in the form of a longitudinal adjustment device. The adjustment device 2 allows a longitudinal adjustment of the vehicle seat 3 along a longitudinal axis X. By means of the adjustment device 2, the seat part 30 and the backrest 31 can be displaced together along the longitudinal axis X relative to the vehicle floor 4. The longitudinal axis X is aligned perpendicular to a vertical axis Z.

[0054] The adjustment device 2 of the vehicle seat 3 comprises (at least) one rail 20 and (at least) one carriage 1 movably mounted on the rail 20. In the present example, the adjustment device 2 comprises two pairs, each consisting of a rail 20 and a carriage 1 movably mounted thereon. The two pairs, of which only one is visible in the view of Fig. 1, are spaced from one another along a lateral axis Y. The lateral axis Y runs perpendicular to the longitudinal axis X and the vertical axis Z. The following explanations refer only to one of the pairs, but apply to the other pair accordingly.

[0055] The rail 20 is designed in the form of a long rail. The rail 20 is significantly longer than the carriage 1, for example, twice or three times as long or even longer. This allows for extensive adjustment of the vehicle seat 3 within the interior of a vehicle. For example, the rail 20 extends across several rows of seats in the vehicle.

[0056] Fig. 2A shows the rail 20 and the carriage 1 movably mounted therein. The rail 20 represents a lower rail in the present case. In the example shown, the rail 20 is fastened to the vehicle floor 4 and can also be referred to as a floor rail. The carriage 1 serves as the upper rail in the present case. The seat part 30 of the vehicle seat 3 is mounted on the carriage 1 and is supported on the carriage 1. The carriage 1 can also be referred to as a seat rail in the present case. The carriage 1 is in turn supported on the rail 20. In the installed state, the rail 20 is supported on the vehicle floor 4. A weight force F acts parallel to the vertical axis Z into the carriage 1 and from the carriage 1 into the rail 20 (and from there further into the vehicle floor 4).

[0057] As can be seen in particular from Fig. 2B, the rail 20 has a base 201 from which two side cheeks 202 extend. The base 201 is flat and extends in the plane spanned by the longitudinal axis X and the lateral axis Y. The lateral edges 202 each border a side edge of the base 201 extending along the longitudinal axis X. The side cheeks 202 each have an inclined section. The inclined sections are inclined towards one another. An engagement section 200 is formed at each end of the side cheeks 202 extending along the longitudinal axis X. Each of the engagement sections 200 has a U-shaped cut. The opening of the U faces the base 201. The respective edge of the engagement sections 200 extending along the longitudinal axis X points towards the base 201 of the rail 20. The engagement sections 200 each form a slot extending along the longitudinal axis X.

[0058] As can be seen from Fig. 3, the carriage 1 comprises at least one support 10, on which at least one roller 130 is rotatably mounted to roll along the rail 20. The at least one roller 130 is inserted into an opening 100 of the support 10 (see, for example, Fig. 5). In the example shown, the carriage 1 comprises several, specifically two, support brackets 10. The two support brackets 10 are spaced apart from each other (along the longitudinal axis X).

[0059] Furthermore, the carriage 1 has a base body 11. The brackets 10 are attached to the base body 11.

[0060] The base body 10 has at least one, here several, guide sections 110 (four in this case). The guide sections 110 each engage with one of the engagement sections 200 of the rail 20. The guide sections 110 are U-shaped in section. In the assembled state, the opening of the U points away from the base 201 of the rail 20. The guide sections 110 then engage with the engagement sections 200 of the rail 20. Two of the guide sections 110 each engage with one of the engagement sections 200 of the rail 20. The guide sections 110 engaging with the same engagement section 200 of the rail 20 are spaced apart from one another.

[0061] The mentioned roller 130 is in this case part of a support roller assembly 13. The carriage 1 comprises the support roller assembly 13 with the roller 130. In the example shown, the carriage 1 comprises several, namely four, support roller assemblies 13, each with a roller 130. The rollers 130 of the support roller assemblies 13 are designed to laterally support the carriage 1 on the rail 20, in this case in both directions along the lateral axis Y.

[0062] Furthermore, the carriage 1 comprises one or more load roller assemblies 12, each with a roller 120. In the present example, the carriage 1 comprises several, namely four, load roller assemblies 12, each with a roller 120. The weight force F acting on the carriage 1 can be introduced into the rail 20 via the rollers 120 of the load roller assemblies 12.

[0063] The load roller assemblies 12 are mounted on load roller brackets 14. In this case, two load roller assemblies 12 are each mounted on one of two load roller brackets 14. The load roller brackets 14 are spaced apart from each other (along the longitudinal axis X). The load roller brackets 14 are attached to the base body 11.

[0064] The brackets 10 are identical in design. The load roller brackets 14 are identical in design.

[0065] As can be seen in Fig. 3, for example, the load roller holders 14 are arranged between the holders 10 of the support roller assemblies 13.

[0066] Between the brackets 10, the base body 11 has tabs 112, which provide additional support against the base 201 of the rail 20. The tabs 112 are parallel to one another. The tabs 112 protrude from a base 111 of the base body 11, in this case on opposite sides (long sides) thereof. The base 111 is elongated. The base 111 is flat. The vehicle seat 3 can be mounted on the base 111. Furthermore, the tabs 112 have outwardly bent legs 113 and can thus also divert lateral forces against the rail 20, e.g., in the event of a crash.

[0067] As can be seen in Fig. 4, for example, each of the holders 10 has a base 101 which is in flat contact with the base 111 of the main body 11. Two tabs 102 protrude from the base 101 of the respective holder 10. The tabs 102 are aligned at an angle to one another, in this case for example at a right angle (or e.g. at an angle of 90° + / - 10° or + / - 20°). The tabs 102 each protrude from the base 101, in this case on opposite sides thereof. The tabs 102 are each at an angle to the base 101. The tabs 102 each run obliquely to the base 101. The tabs 102 each have a section on which one of the rollers 130 of the support roller assemblies 13 is rotatably mounted. This respective section is flat in the present case.

[0068] As can be clearly seen in Fig. 5, for example, the bracket 10 is made of a flat material, in this case a steel sheet. The bracket 10 is punched out. Specifically, the bracket 10 is a stamped and bent part. Starting from the base 101, the bracket 10 has a bend 103 bent in one direction for each tab 102 and an adjoining bend 104 bent in the other direction. The tabs 102 point diagonally away from each other.

[0069] Each of the load roller mounts 14 also has a base 140, which is in flat contact with the base 111 of the base body 11. Two tabs 141 protrude from the base 140 of the respective load roller mount 14, in this case on opposite sides of the base 140. The tabs 141 of the load roller mount 14 extend perpendicular to the base 140. The tabs 141 are aligned parallel to one another. The tabs 140 each have a section on which one of the rollers 120 of the load roller assemblies 12 is rotatably mounted.

[0070] The rollers 120 of the load roller assemblies 12 are each rotatably mounted on an axle 121, in the example shown, each via a ball bearing 123. A nut 122 secures the respective roller 120 to the axle 121. The axle 121 is, for example, a bolt that is inserted through an opening in the respective tab 141 of the load roller holder 14. Alternatively, the axle 121 can be welded to the tab 141.

[0071] The rollers 120 of the load roller assemblies 12 and the rollers 130 of the support roller assemblies 13 are aligned at an angle to each other.

[0072] Specifically, the rollers 130 of the support roller assemblies 13 are mounted on the respective bracket 10 so as to be rotatable about a first axis of rotation D1 (see, for example, Fig. 3). The rollers 120 of the load roller assemblies 12 are mounted on the respective load roller bracket 14 so as to be rotatable about a second axis of rotation D2. The second axes of rotation D2 of the rollers 120 of the load roller assemblies 12 run parallel and / or coaxially to one another. The first axis of rotation D1 is aligned at an angle to the second axis of rotation D2. The second axis of rotation D2 is aligned parallel to the lateral axis Y. The first axis of rotation D1 is aligned obliquely thereto. The rollers 120 of the load roller assemblies 12 can roll on the base 201 of the rail 20, the rollers 130 of the support roller assemblies 13 on the inclined sections of the side cheeks 202 of the rail 20. In the present case, the rollers 120 of the load roller assemblies 12 and the rollers 130 of the support roller assemblies 13 are each, for example, pre-tensioned on the

[0073] Rail 20.

[0074] The carriage 1 is therefore constructed in several parts. The base body 11, the brackets 10, and the load roller brackets 14 are different, separately manufactured components that are fastened to one another, e.g., by means of screw connections, rivets, and / or welds. This separates the functions. Support and play compensation are provided by the brackets 10 and load roller brackets 14, while crash protection is provided by the base body 11. This makes it possible to optimize the material and material thickness for the respective function. For example, the base body 11 is made of a different material than the brackets 10 and / or the load roller brackets 14. For example, the brackets 10 and / or the load roller brackets 14 are made of a more elastic material.Alternatively or additionally, the base body 11 has a thicker material thickness than the brackets 10 and / or the load roller brackets 14. The brackets 10 can also be made of a more elastic material than the load roller brackets 14. The base body 11, the brackets 10 and the load roller brackets 14 are each manufactured, for example, as stamped and bent parts (alternatively, none or only some of them). The base body 11, the brackets 10 and the load roller brackets 14 are each manufactured, for example, from a flat material. As an alternative to a separate, multi-part design, the base body 11 and / or the brackets 10 and / or the load roller brackets 14 can also be formed as a single piece.

[0075] It is also evident that the base body 11 is in flat contact with the brackets 10 and the load roller brackets 14. Thus, the brackets 10 and the load roller brackets 14 can further reinforce the base body 11. The base body 11 encompasses the brackets 10 and the load roller brackets 14 in sections, which also provides an additional space advantage.

[0076] With reference to Fig. 5 and 6, the support roller assemblies 13 and their attachment to the bracket 10 will now be explained in more detail.

[0077] The roller 130 of each support roller assembly 13 is rotatably mounted on a hub 131. The roller 130 is mounted on a ball bearing 138 (or another type of pivot bearing). The ball bearing 138 allows the roller 130 to rotate relative to a bushing 139 arranged concentrically with the roller 130. The bushing 139 represents an inner ring. The hub 131, which serves as the axle here, is inserted, specifically pressed, into the bushing 139 when assembled.

[0078] The hub 131 is stepped. This creates a positive connection to the carriage 1. In this case, the hub 131 has two steps 136. A press-in section 135, which is pressed into the bushing 139, and two support sections 134 are provided. The press-in section 135 has a larger diameter than the support sections 134. A step 136 is thus formed between the press-in section 135 and the support sections 134. The press-in section 135 is arranged between the support sections 134. The press-in section 135 is circularly cylindrical (in this case, these are also the support sections 134, for example).

[0079] Furthermore, a cage 137 is provided, in which the roller 130 is accommodated. The cage 137 has walls W between which the roller 130 is arranged. In the present case, the cage 137 has four walls W. The cage 137 has a rectangular cross-section. The cage 137 can be made of plastic or sheet metal.

[0080] The cage 137 further has receptacles A for the hub 131. The hub 131 is clipped into the receptacles A. In this case, protruding ends of the press-in section 135 on both sides of the roller 130 are snapped into the receptacles A.

[0081] Thus, the roller 130 with the ball bearing 138 and the bushing 139, as well as the hub 131 and the cage 137 together form the pre-assembled support roller assembly 13.

[0082] The cage 137 further comprises locking elements R, in the present case in the form of locking hooks.

[0083] The holder 10 has an opening 100 on each of the two tabs 102. The opening 100 has a rectangular basic shape. Widened portions V are formed on opposite sides of the rectangular basic shape. Thus, the opening 100 has the shape of a cross. An inward-facing corner E is formed on each side of the widened portions V.

[0084] For assembly, the support roller assembly 13 is simply inserted into the opening 100. The cage 137 engages with the locking elements R on opposite edges of the opening 100. The locking elements R are spaced apart perpendicular to the rotational axis of the roller 130. The hub 131 is then supported on the bracket 10. Specifically, the hub 131 is supported on the bracket 10 on two opposite sides of the opening 100, specifically on the same side of the bracket 10. The support sections 134 rest on the bracket 10 on both sides of the roller 130. Projections forming the receptacles A extend into the widened portions V of the opening 100.

[0085] The steps 136 engage in the opening 100. The steps 136 thus secure the roller 130 against axial displacement of the roller 130 relative to the bracket 10. The cage 137 secures the hub 131 in this position and, together with the steps 136, serves to axially secure the roller. The cage 137 is inserted into the opening 100 from the same side of the bracket 10 as the roller 130.

[0086] A closed edge of the opening 100 defines a plane, wherein the roller 130 is rotatable about a straight line parallel to this plane, the first axis of rotation D1.

[0087] Figs. 6A to 6D illustrate a method for assembling an adjustment device 2 for a vehicle seat 3

[0088] First, the roller 130, the hub 131 and the cage 137 are provided, as well as the bracket, see Fig. 6A.

[0089] The hub 131 is then pressed into the roller 130 (more precisely, the bushing 139). It is then held therein by a force fit, see Fig. 6B. Alternatively, the hub 131 can also be integrated into the bushing 139, e.g., formed integrally with it.

[0090] Then, the hub 131 with the roller 130 is snapped into the cage 137, see Fig. 6C. In the assembled state, a portion of the roller 130 is arranged on one side (the tab 102) of the bracket 10, and another portion of the roller 130 is arranged on the other side (the tab 102) of the bracket 10. The roller 130 thus extends through the bracket 10. The opening 100 is a through-hole.

[0091] Then, the roller 130 with the cage 137 is inserted into the opening 100 of the bracket 10 such that the roller 130 is rotatably mounted on the bracket 10, see Fig. 6D. This is also done for the second roller 130 of the bracket 10 (and the same for the second bracket 10). Then, the brackets 10 with the rollers 130 are attached to the base body 11 to form the carriage 1.

[0092] The carriage 1 further comprises load roller holders 14, on each of which two rollers 120 of two load roller assemblies 12 are rotatably mounted such that a weight force F acting on the carriage 1 can be introduced into the rail 20 via the load roller holders 14. The rollers 130 of the support roller assemblies 13 are rotatably mounted on the holders 10 in order to roll along the rail 20 and are designed to laterally support the carriage 1 on the rail 20.

[0093] Furthermore, the carriage 1 with the holders 10 is arranged on the rail 20 in such a way that the carriage 1 is movably mounted on the rail 20, so that when the carriage 1 moves along the rail 20, the rollers 130 roll along the rail 20.

[0094] The design of the mounting of the rollers 130 to the brackets results in a particularly cost-effective and time-saving assembly solution. The simple assembly also reduces investment costs and enables assembly without complex tools. The support roller assemblies 13 are simply inserted or clipped in. The opening 100 can also be referred to as a shaped hole. Additional parts such as plastic clips, sheet metal holders, wire clamps, etc. can be used as assembly aids.

[0095] Figs. 7 and 8 show the holder 10 with a differently designed support roller assembly 13'. The support roller assembly 13' does not include a cage, but rather spacers 132, 133 for axial securing. The hub 131' is stepped and has a central press-in section 135 and two outer support sections 134, as described above. One of the spacers 133 can be integrally connected to the hub 131' or already pre-assembled thereon. The roller 130 is then pressed onto the press-in section 135, and the further spacer 133 is also placed, in particular pressed, onto the hub 131'. The roller 130 is then arranged between the spacers 132, 133.

[0096] The preassembled support roller assembly 13' is inserted into the opening 100. The roller 130 is then arranged in the rectangular part of the opening 100, and the spacers 132, 133 are arranged in the widened portions V. The roller 130 rolls along the side of the rail 20, where it rests on the bracket 10 via the hub 131. Thus, the roller 130 is secured to the bracket in a particularly simple manner, without the need for additional fastenings. Figs. 9A to 9D show the bracket 10 with a differently designed support roller assembly 13". The support roller assembly 13" comprises a cage 137'. However, the cage 137' is inserted into the opening 100 from the opposite side of the bracket 10 than the roller 130.

[0097] The cage 137' has a flat base B. Projections protrude from the base B, forming (two) receptacles A' for the hub 131. Furthermore, locking elements R' protrude from the base B. The cage 137' is made, for example, of plastic.

[0098] For assembly, the hub 131 is first pressed into the bushing 139 of the roller 130, see Fig. 9B.

[0099] Then the cage 137' is inserted into the opening 100 from one side (here: from below) and locked with the locking elements R', see Fig. 9C.

[0100] Then, the roller 130 is inserted into the opening 100 from the other side (here: from above). The hub 131 is engaged in the receptacles A', see Fig. 9D.

[0101] Fig. 10A shows the carriage 1 with (two) brackets 10, each with a support roller assembly 13'" and with (two) load roller brackets 14, each with a load roller assembly 12'.

[0102] The support roller assemblies 13'" are each designed as described above in connection with Figs. 3 to 6D, with the difference that the receptacles in the cage 137" for the hub 131 are formed on the side of the cage 137" facing away from the holder 10. The hub 131 can therefore be clipped (and is clipped) into the cage 137" in the direction in which the roller 130 is inserted into the opening 100.

[0103] Furthermore, it is provided that the load roller holders 14 each have two openings 142, into each of which a roller 120 of a load roller assembly 12' is inserted. In the present case, the tabs 141 of each of the load roller holders 14 each have a bent (end) section 143, in which an opening 142 is formed. The sections 143 extend in the same plane. The sections 143 are designed in the form of two wings. The sections 143 point away from each other.

[0104] A cage 125 is inserted into each of the openings 142, in this case from below, i.e., in a direction that is oriented opposite to the force of gravity during use. Locking elements "R" in this case in the form of locking hooks that engage the edges of the respective opening 142 secure the cage 125 in the opening 142.

[0105] The roller 120 of a respective load roller assembly 12' is inserted into the cage 125 from below. The respective roller 120 is rotatably mounted on a hub 124. The hub 124 is inserted from below into receptacles of the cage 125. The respective load roller holder 14 is supported on the hub 124 (in this case, rests thereon), specifically at both ends of the hub 124, on both sides of the roller 120. The respective section 143 has a flat surface on which the hub 124 is supported, with the rotational axis of the roller 120 running parallel to this surface.

[0106] The cage 125 of each load roller assembly 12' can have a slider 126, as shown. In the present example, the cage 125 of each load roller assembly 12' has a slider 126 on either side of the roller 120. The sliders 126 are designed in the form of shoulders. The sliders 126 border the base 201 of the rail 20, e.g., they lie flat against the base 201 of the rail 20. Thus, the sliders 126 can remove dirt from the track of the rail 20, in particular pushing it to the ends of the track. The sliders 126 are thus designed to push dirt from the track of the rail 20.

[0107] It should be noted that it would also be conceivable that only the rollers 120 of the load roller assemblies 12' are inserted into the openings 142 (and thus extend partially on both sides of the sheet metal of the load roller holder 14), while lateral support rollers are also mounted in a known manner.

[0108] List of reference symbols

[0109] 1 car

[0110] 10 Bracket

[0111] 100 opening

[0112] 101 Basics

[0113] 102 tab

[0114] 103, 104 bend

[0115] II Basic body

[0116] 110 Guide Section

[0117] III Basis

[0118] 112 tab

[0119] 113 legs

[0120] 12, 12' load roller assembly

[0121] 120 rolls

[0122] 121 Axis

[0123] 122 Mother

[0124] 123 ball bearings

[0125] 124 Hub

[0126] 125 cage

[0127] 126 sliders

[0128] 13, 13', 13", 13'" support roller assembly

[0129] 130 roll

[0130] 131 , 131 ' hub

[0131] 132, 133 spacer

[0132] 134 support section

[0133] 135 press-fit section

[0134] 136 level

[0135] 137, 137', 137" cage

[0136] 138 ball bearings

[0137] 139 socket

[0138] 14 Bracket (load roller bracket)

[0139] 140 Base

[0140] 141 tab

[0141] 142 Opening 143 Section

[0142] 2 Longitudinal adjustment device

[0143] 20 rail 200 engagement section

[0144] 201 Base

[0145] 202 side panel

[0146] 3 vehicle seat 30 seat part

[0147] 31 Backrest

[0148] 4 Vehicle floor

[0149] A, A' recording

[0150] B Base D1. D2 Rotation axis

[0151] E corner

[0152] F weight force

[0153] R, R', R“ locking element

[0154] V Widening W Wall

[0155] X Longitudinal axis

[0156] Y side axis

[0157] Z altitude axis

Claims

Claims 1. Adjusting device (2), in particular for a vehicle seat (3), comprising: a rail (20) and a carriage (1) movably mounted on the rail (20) with at least one holder (10, 14) on which at least one roller (120, 130) is rotatably mounted in order to roll along the rail (20), characterized in that the at least one roller (120, 130) is inserted into an opening (100, 142) of the at least one holder (10, 14).

2. Adjusting device (2) according to claim 1, characterized in that the roller (120, 130) is rotatably mounted on a hub (131, 131', 124) which is supported on the at least one holder (10, 14).

3. Adjusting device (2) according to claim 2, characterized in that the hub (131, 131', 124) is supported on the holder (10, 14) on two opposite sides of the opening (100, 142) on one side of the holder (10, 14).

4. Adjusting device (2) according to claim 2 or 3, characterized in that the hub (131, 131', 124) has two support sections (134) which rest on the holder (10, 14) on both sides of the roller (120, 130).

5. Adjusting device (2) according to one of claims 2 to 4, characterized in that the hub (131, 131', 124) is pressed into a ball bearing (138), via which the roller (120, 130) is rotatably mounted on the hub (131, 131', 124), or is formed in one piece with a part of the ball bearing (138).

6. Adjusting device (2) according to one of claims 2 to 5, characterized in that the hub (131, 131', 124) is stepped.

7. Adjusting device (2) according to one of the preceding claims, characterized in that the opening (100, 142) has a rectangular basic shape, wherein widenings (V) are formed on opposite sides of the rectangular basic shape.

8. Adjusting device (2) according to one of the preceding claims, characterized in that the roller (120, 130) is secured by an axial lock against axial movement relative to the holder (10, 14).

9. Adjusting device (2) according to claim 8, characterized in that the axial securing means comprises spacer discs (132, 133) arranged on opposite sides of the roller (130).

10. Adjusting device (2) according to claim 9, dependent on claim 7, characterized in that the spacer discs (132, 133) are each inserted into one of the widenings (V) of the opening (100).

11. Adjusting device (2) according to one of claims 8 to 10, characterized in that the axial securing means comprises a cage (137, 137', 125) receiving the roller (120, 130).

12. Adjusting device (2) according to claim 11, characterized in that the cage (137, 137', 125) has locking elements (R, R', R") which are locked to the opening (100, 142).

13. Adjusting device (2) according to claim 11 or 12, dependent on claim 6 and claim 2, characterized in that the cage (137, 137', 125) has receptacles (A, A') into which the hub (131, 131', 124) is inserted and which are each inserted into one of the widened portions (V) of the opening (100, 142).

14. Adjusting device (2) according to one of claims 11 to 13, characterized in that the cage (137, 137", 142) is inserted into the opening (100, 142) from the same side of the holder (10, 14) as the roller (120, 130).

15. Adjusting device (2) according to one of claims 11 to 13, characterized in that the cage (137') is inserted into the opening (100) from the opposite side of the holder (10) than the roller (130).

16. Adjusting device (2) according to one of the preceding claims, characterized in that a closed edge of the opening (100, 142) defines a plane, wherein the roller (120, 130) is rotatable about a straight line running parallel to this plane.

17. Adjusting device (2) according to one of the preceding claims, characterized in that the roller (120, 130) extends through the opening (100, 142).

18. Adjusting device (2) according to one of the preceding claims, characterized in that the holder (10, 14) has two tabs (102, 141), wherein an opening (100, 142) is formed in each of the tabs (102, 141) and the roller (120, 130) and a further roller (120, 130) are rotatably arranged in one of the openings (100, 142) each.

19. Adjusting device (2) according to claim 18, characterized in that the roller (120, 130) and the further roller (120, 130) are aligned at an angle to each other.

20. Adjusting device (2) according to claim 18 or 19, characterized in that the rollers (130) rotatably mounted on the holder (10) are designed for lateral support of the carriage (1) on the rail (20).

21. Adjusting device (2) according to one of claims 1 to 18, characterized in that the holder (14) is designed as a load roller holder, wherein a weight force (F) acting on the carriage (1) can be introduced into the rail (20) via the at least one roller (120) of the load roller holder.

22. Adjusting device (2) according to one of claims 1 to 20, characterized in that the carriage (1) comprises, in addition to the holder (10), a load roller holder on which at least one roller (120) of a load roller assembly (12, 12') is rotatably mounted, wherein a weight force (F) acting on the carriage (1) can be introduced into the rail (20) via the load roller holder.

23. Adjusting device (2) according to claim 22, characterized in that the at least one roller (130) is mounted on the holder (10) so as to be rotatable about a first axis of rotation (D1) and the at least one roller (120) of the load roller assembly (12, 12') is rotatable about a second The rotation axis (D2) is rotatably mounted on the load roller holder, with the second Rotation axis (D2) is aligned at an angle to the first rotation axis (D1).

24. Adjusting device (2) according to claim 22 or 23, characterized in that the at least one roller (120) of the load roller holder is inserted into an opening (142) of the load roller holder (14).

25. Adjusting device (2) according to one of the preceding claims, characterized in that the carriage (1) comprises a base body (110) to which the holder (10, 14) is fastened, and which has guide sections (110) which are longitudinally displaceably engaged with engagement sections (200) of the rail (20).

26. Adjusting device (2) according to one of the preceding claims, characterized in that the holder (10, 14) is produced as a stamped and bent part from a flat material.

27. Adjusting device (2) according to one of the preceding claims, characterized in that the carriage (1) comprises two spaced-apart holders (10, 14), each with two rollers (120, 130) rotatably mounted thereon and inserted into an opening (100, 142) of the respective holder (10, 14).

28. Adjusting device (2) according to one of the preceding claims, characterized in that the rail (20) is designed in the form of a long rail which, compared to the carriage (1), is at least twice, at least 2.5 times or at least three times longer.

29. Adjusting device (2) according to one of the preceding claims, characterized in that the tabs (102, 141) of the holder (10, 14) are made of metal and the openings (100, 142) are designed as holes formed on the tabs (102, 141) with a circumferential, closed edge.

30. Adjusting device (2) according to claim 29, characterized in that the openings (100, 142) are cut and / or punched out of the tabs (102, 141).

31. Adjusting device (2) according to one of the preceding claims, characterized in that the roller (120, 130) is mounted between an edge of the opening (100, 142) and a cage (137, 137', 125) in a rotatable manner in a radially secured and / or axially secured manner.

32. Carriage (1) for movable mounting on a rail (20) of an adjustment device (2), in particular according to one of the preceding claims, comprising: a load roller holder (14), on which at least one roller (120) of a load roller assembly (12, 12') is rotatably mounted such that a weight force (F) acting on the carriage (1) can be introduced into the rail (20) via the load roller holder (14), and a holder (10), on which at least one roller (130) of a support roller assembly (13, 13', 13", 13'") is rotatably mounted in order to roll along the rail (20), and which is designed for the lateral support of the carriage (1) on the rail (20), characterized in that the at least one roller (130) of the support roller assembly (13, 13', 13", 13'") is inserted into an opening (100) of the holder (10) and / or the at least one roller (120) of the load roller assembly (12') is inserted into an opening (142) of the load roller holder (14) is inserted.

33. Vehicle seat (3), characterized by the adjusting device (2) according to one of claims 1 to 31 and / or the carriage (1) according to claim 32.

34. Method for assembling an adjusting device (2), in particular for a vehicle seat (3), comprising: Inserting at least one roller (120, 130) into an opening (100, 142) of a holder (10, 14) such that the roller (120, 130) is rotatably mounted on the holder (10, 14); and - Arranging a carriage (1) with the holder (10, 14) on a rail (20) in such a way that the carriage (1) is movably mounted on the rail (20) so that when the carriage (1) moves along the rail (20), the roller (130) rolls along the rail (20).

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