ES2744810T3 - Sliding door guide for a motor vehicle - Google Patents

Abstract

Sliding door guide for a motor vehicle, with a door support (1) for fixing to a sliding door, with a rail (2) to guide the door support (1), and with a set of rollers (3 ) fixed to the door support (1), where the roller assembly (3) has a plurality of rollers (4a-d) with a roller contour (5) to roll on a rail contour (6) of the rail (2 ), so that the set of rollers (3) can move along the rail (2), and where the contour of the roller (5) is coupled to the contour of the rail (6) so that two coupling surfaces are obtained (7a, b) arranged at an angle to each other, and where two rollers (4a-d) of the roller assembly (3) form a pair of rollers (10a, b), where the pair of rollers (10a, b), rotatably fixed to a common connection plate (11a, b) of the roller assembly (3), and where the roller assembly (3) has two connection plates (11a, b) each with a pair of rod illos (10a, b) fixed to it, characterized in that the two connection plates (11a, b) are pivotally fixed to a base plate (12) of the roller assembly (3).

Description

DESCRIPTION

Sliding door guide for a motor vehicle

[0001] The invention relates to a sliding door guide for a motor vehicle with the characteristics of the preamble of claim 1 and a motor vehicle with a sliding door with the characteristics of the preamble of claim 14.

[0002] The sliding doors of motor vehicles are normally guided on two or three rails, which are arranged laterally in the motor vehicle and extend in the longitudinal direction according to the direction of travel. The function assigned to the different lanes regularly is to receive different loads from the sliding door. Therefore, a series of conventional designs contemplates the reception of the weight of the sliding door substantially completely in one center, with respect to a vertical direction, of three rails, and to allow the other two rails, in particular the vertically arranged lane above, simply receive tensile forces in a direction transverse to the anterior longitudinal direction.

[0003] According to this approach, the sliding door guides for a motor vehicle are known from the prior art, in which a door support fixed to the sliding door has a convention roller, which moves within a profile in U formed by an upper guide rail. In fact, this design is simple and basically simple to produce and assemble; furthermore, the corresponding sliding door guide is designed only for a tension load by the door support, as previously determined. Consequently, additional forces or pairs of forces must be received by other parts of the sliding door guide or other designs.

[0004] DE 2745 611 A1, of which the invention emerges as the closest prior art and which presents the features of the preamble of claim 1, describes a device for guiding a sliding door in a side wall of motor vehicles in a guide rail provided therein by means of a carriage mounted on the door body, said carriage encloses the profile of the guide rail with its travel rollers. The device is characterized in that the carriage is mounted to be able to move in three degrees of freedom on a support rigidly fixed to the body of the door.

US 2004/0003484 A1 describes a support and guide unit for a sliding door, which includes a support to be fitted on a first structure element of a motor vehicle. A set of rollers is rotatably fixed around a first axis on the support and is adapted to roll on a guide and support rail. The guide and support rail is adapted to fit on a second structure element of the motor vehicle and is designed to slide with respect to the first structure element.

[0005] US 2,900,207 discloses a motor vehicle chassis with a lateral cutting section, which forms a door opening in a vertical plane, which is arranged offset with respect to an edge of the outer surface of the chassis, and a door with a section that extends inwards at its lower edge with a triangular cross-section, which can be coupled to the door opening, and a relatively movable support means, which connects the chassis and the lower end section of the door directly to each other, and a means on a tip of the body to support the upper part of the door so as to allow the door to move laterally with respect to it.

[0006] WO 2005/028794 A1 describes a guide system for a sliding door comprising a sliding rail with an upper cover and a lower termination arranged in a position opposite the upper cover, and a roller element that is guided in the sliding rail and comprises a roller element housing, where three rollers are rotatably fixed in the roller element housing, where the two rollers move along the upper cover of the sliding rail and the third roller moves to along the bottom termination, where a spring element is fixed to the housing of the roller element, which deflects one of the first two rollers and the third roller against the sliding rail.

[0007] Starting with the prior art, the problem of the invention consists, therefore, in providing a sliding door guide that has compact dimensions and is economical to produce, and which is also suitable for receiving loads in additional directions.

[0008] With respect to a sliding door guide for a motor vehicle with the characteristics of the preamble of claim 1, this problem is solved by the characteristics of the characterizing part of claim 1, and with respect to a motor vehicle With a sliding door with the features of the preamble of claim 14, this problem is solved by the features of the characterizing part of claim 14.

[0009] The sliding door guide according to the invention for a motor vehicle has a door support for fixing to a sliding door, a rail for guiding the door support, and a roller assembly fixed to the door support, where the roller assembly has a plurality of rollers with a roller contour for rolling on a rail rail contour, so that the roller assembly can move along the rail. It is currently understood that the roller contour and the rail contour present in each case a profile of the roller or rail in a cross section, where it is specifically that part of the profile of the roller or rail by which it is carried out the bearing The parts of the roller or rail profile, which optionally only carry out a sliding motion with each other (therefore, a relative movement with the occurrence of a sliding friction), are not included as the roller contour or the rail contour in this sense.

[0010] The cross section above is defined by the longitudinal direction of the rail, which in turn corresponds to that direction in which the roller assembly can be moved along the rail. This longitudinal direction can change in sections along the rail, in which the rail adopts a curved path.

[0011] The sliding door guide according to the invention is characterized in that the roller contour is coupled to the rail contour so that two coupling surfaces arranged at an angle to each other are obtained. In a strictly mathematical sense, only one particular one-dimensional coupling path would occur between the roller contour and the rail contour. However, in practice, there is a two-dimensional contact between the roller and the rail, which is why the term coupling surface is currently used. Angled here and hereafter means that the two coupling surfaces form an angle to each other that is greater than 0 ° and less than 180 °. In this way, the coupling surfaces are not necessarily straight, but instead can also have a curved path, in particular, in sections.

[0012] In the case of a conventional prior art roller with only a single smooth clamping surface, according to a sectional view through the rotational axis of the roller, which is arranged in a guide rail with a conventional U-profile, Only a single flat coupling surface is produced. This single coupling surface generally extends vertically so that the arrangement is designed only for a tensile load perpendicular to this single coupling surface. This direction for a tensile load then corresponds generally with a lateral transverse direction to the longitudinal direction of the motor vehicle.

[0013] Since two coupling surfaces are now produced arranged at an angle to each other between the roller contour and the rail contour, forces in other directions can also be received. In general, the sliding door guide according to the invention can also acquire additional support functions, so that other guide rails of the motor vehicle for the sliding door can be downloaded accordingly.

[0014] A preferred embodiment of the sliding door guide according to the invention is characterized in that there is a positive coupling in a vertical direction, in which a weight force acts, between the roller contour and the rail contour due to the coupling of the roller contour with the rail contour. In this way, this weight force can come from the sliding door, the door support and / or the roller assembly itself. The weight force, in particular of the sliding door, regularly represents the most important part of the loads to be received by a sliding door guide.

[0015] According to a preferred embodiment, the sliding door guide according to the invention is characterized in that the coupling surfaces are substantially adjacent to each other. The coupling surfaces preferably form an angle between 45 ° and 135 ° to each other, where this angle can be in particular between 60 ° and 120 °, more particularly between 60 ° and 90 °. Although there is no transition surface between the coupling surfaces, it can be determined that the coupling surfaces are substantially adjacent to each other. It is preferred that a transition surface between the coupling surfaces is smaller than the two coupling surfaces. To determine the size of the surface, the one-dimensional extension can be used in a cross-sectional view to the longitudinal direction of the rail. In particular, it is preferred that the transition surface in this direction be less than one third of the coupling surfaces respectively.

[0016] The sliding door guide according to the invention is characterized in that two rollers of the roller assembly form a pair of rollers, said pair of rollers is rotatably fixed to a common connecting plate of the roller assembly. The roller assembly can also have more than two rollers, which can then consequently form more than one pair of rollers. According to the invention, the roller assembly has two connection plates with a pair of rollers fixed thereto in each case.

[0017] The sliding door guide according to the invention is characterized in that the two connecting plates are, in particular, pivotally fixed to a base plate of the roller assembly. This type of arrangement allows the roller assembly to follow an optionally curved track of the rail. Mainly, the two connection plates can be arranged on the base plate displaced with respect to each other in a longitudinal direction of the rail. Therefore, this displacement allows the sliding door guide according to the invention to also receive motor pairs around an axis defined by the longitudinal extension of the door support.

[0018] According to a preferred embodiment, the sliding door guide according to the invention is characterized in that the roller assembly has a spring assembly for applying a pulling force to the connecting plates. A preferred variant contemplates that the spring assembly has a tension spring fixed on the two connection plates.

[0019] A preferred embodiment of the sliding door guide according to the invention is characterized in that during the coupling of the pair of rollers with the rail, the connecting plates, to which the respective pair of rollers are fixed, are oriented at an angle to each other. In other words, the distance of the two rollers from the pair of rollers is slightly greater than would be necessary for an exact adjustment with the rail. This facilitates that both the rail tolerance and the tolerance of the connecting plates or the set of roller pairs on the connecting plate can be more generous, which saves production costs. In particular, it is additionally preferred to produce the angle assembly that the spring assembly deflects the connection plates due to the tensile force, so that the clearance between the roller contours and the rail contours is eliminated. , by pivoting the connection plates. In other words, the pivoting of the connection plates caused by the spring assembly compensates for the clearance between the roller contours and the rail contours. The orientation of the connection plates is derived here and hereinafter from that direction, which is defined by the displacement of the rollers fixed to the connection plate.

[0020] Another preferred embodiment of the sliding door guide according to the invention is characterized in that the roller assembly is pivotally fixed to the door support by means of the base plate. In other words, the base plate is pivotally connected to the door support so that the entire roller assembly can be pivoted with respect to the door support by the base plate. In combination with the previously described pivotable assembly of the connection plate or the connection plate on the base plate, a displacement of the roller assembly on a curved rail is also facilitated.

[0021] It is further preferred that the base plate be fixed to the door support between the two connection plates. In this way, an adequate distribution of the load on the two connection plates and, therefore, on the roller pairs of the connection plates is achieved.

[0022] According to a preferred embodiment, the sliding door guide according to the invention is characterized in that the door support has two clamping arms connected to each other, which are arranged so that they can be moved to change the distance between the Sliding door and rail.

[0023] It is preferred that the rail according to the invention has two rail contours. In particular, these may be arranged, with respect to the longitudinal direction of the rails, with specular symmetry with respect to each other. Therefore, it may be preferred accordingly that the two rollers of the pair of rollers are arranged in the same manner with specular symmetry with respect to the longitudinal direction of the rails.

[0024] A preferred embodiment of the sliding door guide according to the invention contemplates that the rail contour is arranged on the rail so that it is oriented outwards. It is further preferred that the rail has two opposite rail contours that are oriented outwards and that may be, in particular, identical. Identical in this sense means the previous case of specular symmetry. This variant allows the roller assembly to surround the rails on both sides, a means by which the reception of a motor torque around the longitudinal direction of the rails is facilitated.

[0025] Another preferred embodiment of the sliding door guide according to the invention is characterized in that the connecting plates are oriented substantially transverse to the rail, so that the respective rail contour of the two rollers of the roller pair attached to the respective connection plate is coupled to the respective rail contour on opposite sides of the rail. A transverse orientation to the rails is synonymous with a transverse orientation to the longitudinal direction of the lane.

[0026] According to a preferred embodiment, the sliding door guide according to the invention is characterized in that the rail has an opening to receive the roller, and the rail contour is an inner contour arranged in the opening. In this way, the roller (or the plurality of rollers) can be guided into the rail, which makes the sliding door guide particularly compact in general.

[0027] According to another preferred embodiment, the sliding door guide according to the invention is characterized in that the rail has two opposite rail contours that are arranged in the opening and are, in particular, identical. Here, an orientation of the connection plate (s) in which the connection plate is arranged substantially collinearly to a longitudinal direction of the rail is preferred, so that the opening receives both rollers from the pair of rollers fixed to the connection plate.

[0028] Basically, the lane can move straight. However, a preferred embodiment of the sliding door guide according to the invention contemplates that the rail has a rail section with a radius, and that the roller assembly can move along the rail section with the radius . This allows greater flexibility with respect to the movement of the sliding door. With regard to the spring assembly, it is preferred that the spring assembly be disposed relative to the rail in the direction of an inner part of the radius.

[0029] The motor vehicle according to the invention has a sliding door and at least two sliding door guides that extend along a direction of travel of the motor vehicle and are vertically offset with respect to each other. The motor vehicle according to the invention is characterized by that a top sliding door guide of the at least two sliding door guides is a sliding door guide according to the invention.

[0030] The preferred features and embodiments of the motor vehicle according to the invention come from the preferred features and embodiments of the sliding door guide according to the invention.

[0031] Details, features, objectives and additional advantages of the present invention are explained below by means of a drawing that reflects a single exemplary embodiment of the invention. As you can see in the drawing:

Figure 1 is a perspective view of a sliding door guide according to the invention according to a first exemplary embodiment,

Figure 2 is a cross-sectional view of the sliding door guide of Figure 1,

Figure 3 is a top view of the roller assembly of the sliding door guide of Figure 1,

Fig. 4 is a perspective view of a sliding door guide according to the invention according to a second example embodiment,

Figure 5 is a cross-sectional view of the sliding door guide of Figure 4, and

Figure 6 is a perspective view of the roller assembly of the sliding door guide of Figure 4.

[0032] The exemplary embodiment of a sliding door guide shown respectively in Figure 1 and in Figure 4 serves to guide a sliding door (not shown) of a motor vehicle (also not shown). In this way, the common characteristics of the first exemplary embodiment of the sliding door guide according to the invention of Figures 1 to 3 and of the second exemplary embodiment of the sliding door guide according to the invention of the invention will initially be described. Figures 4 to 6.

[0033] The door support 1 is fixed to the claimed sliding door. The door support 1 is guided in turn by the rails 2, by which the sliding door is also indirectly guided. In turn, a roller assembly 3 is fixed to the door support 1. This roller assembly has a total of four rollers 4a-d with a respective roller contour 5, where the roller contour 5, substantially identical for the two exemplary embodiments, it is clearly seen in Figure 2 and in Figure 5. The rollers 4a-d with the respective roller contour 5 roll on the corresponding rail contour 6 of the rail 2. The term bearing is used in the This document as a synonym for circulation, that is, does not depend on the presence or lack of a deformation of the roller 4a-d. Due to this bearing or circulation, the roller assembly 3 and, consequently, indirectly also the door support 1 and the sliding door, travel along the rails 2. The coupling surfaces 7a, b, produced by the Coupling, which are clearly angled with respect to each other, can also be seen in Figure 2 and in Figure 5.

[0034] Accordingly, in the vertical direction shown 8, there is a positive coupling between the roller contour 5 and the rail contour 6, so that the rail contour 6 remains in the vertical direction in the path of a movement of roller 4a-dy, therefore, the roller contour 5. The roller contour 5 and the rail contour 6 are therefore substantially complementary to each other.

[0035] A transition surface 9 can be observed between the coupling surfaces 7a, b, considerably smaller with respect to them, so that despite the presence of said transition surface 9, the coupling surfaces 7a, b are substantially adjacent to each other.

[0036] In Figure 3 and Figure 6, two connection plates 11a, b, which are pivotally fixed respectively to a common base plate 12 of the roller assembly 3, can be observed. at its fixation, a displacement in the longitudinal direction 14 of the rail 2, where this longitudinal direction 14 corresponds to the extension direction of the rail 2 and, therefore, to that direction in which the roller assembly 3 can move lane length 2. A pair of rollers 10a, b of two rollers respectively 4a-d are rotatably fixed on each connecting plate 11a, b. The base plate 12 itself is pivotally fixed on the door support 1 by means of a connecting bolt 13. In these two figures, the spring assembly 15, consisting of a tension spring 16, of the assembly can also be observed of rollers 3, said spring assembly 15 exerting a tensile force on the connecting plates 11a, b.

[0037] In figure 1 and in figure 4 it is shown respectively for both exemplary embodiments that the door support 1 has two clamping arms 17a, b, which can be moved towards each other and specifically with each other to adjust the separation of the sliding door with rail 2.

[0038] It can be seen for the first exemplary embodiment of Figures 1 to 3 that the deflection of the connecting plates 11a, b caused by the spring assembly 15 causes them to be arranged at an angle with respect to the other and, therefore, are not parallel. Consequently, the separation between rollers 4a-d of a pair of rollers 10a, b is slightly larger than would be necessary for an exact adjustment according to the transverse extension of the rail 2. The existing clearance in this way is compensated or eliminated by pivoting the connecting plates 11a, b, which causes the previous angle orientation.

[0039] Figure 2 also shows, in particular, for the first exemplary embodiment, that on both sides facing outwardly of rail 2, an identical rail contour 6 is arranged. Thus, the term "outwardly oriented" refers herein to the respective direction transverse to the longitudinal direction 14 of the rail 2, which is defined by the longitudinal extension of the door support 1. Accordingly, the plates of connection 11a, b, regardless of the deviation of the right angle described above, which results from its orientation at an angle to each other, are arranged substantially transverse to the rail 2 and allow the rollers 4a-d of a pair of rollers 10a, bo their Roller contours 5 engage in this rail contour 6 facing outward on opposite sides of rail 2.

[0040] On the contrary, for the second exemplary embodiment of Figures 4 to 6 with a cross-section of the essentially C-shaped rail 2, it is contemplated that the rollers 4a-d are received in an opening 18 of the rail 2, where the rail contour 6 is also arranged respectively as the identical inner contours within the opening 18 with respect to both transverse sides of the roller 4a-d. Consequently, the connecting plates 11a, b are oriented substantially collinearly to the longitudinal direction 14 of the rail 2.

[0041] As shown again by FIG. 1 and FIG. 4 for both exemplary embodiments, the rail 2 has a rail section 19, which can therefore be described as a rail section 19 with a radius. In this way, the roller assembly 3 can move along the rail 3 not only in the straight sections of the rail 2, but also along this rail section 19 with the radius.

Claims (14)

1. Sliding door guide for a motor vehicle, with a door support (1) for fixing to a sliding door, with a rail (2) to guide the door support (1), and with a roller assembly (3) fixed to the door support (1), where the roller assembly (3) has a plurality of rollers (4a-d) with a roller contour (5) to roll on a rail contour (6) of the rail (2), so that the roller assembly (3) can move along the rail (2), and where the roller contour (5) is coupled to the rail contour (6) so that two surfaces are obtained coupling (7a, b) arranged at an angle to each other, and where two rollers (4a-d) of the roller assembly (3) form a pair of rollers (10a, b), where the pair of rollers (10a, b) , is rotatably fixed to a common connecting plate (11a, b) of the roller assembly (3), and where the roller assembly (3) has two connection plates (11a, b) each with a pair ofrollers (10a, b) fixed thereto, characterized in that the two connecting plates (11a, b) are pivotally fixed to a base plate (12) of the roller assembly (3). 2. Sliding door guide according to claim 1, characterized in that there is a positive coupling in a vertical direction (8), vertical direction (8) in which a weight force acts, between the roller contour (5) and the lane contour (6) due to the coupling of the roller contour (5) with the lane contour (6). 3. Sliding door guide according to claim 1 or claim 2, characterized in that the coupling surfaces (7a, b) are substantially adjacent to each other, preferably because the coupling surfaces (7a, b) form an angle between ° and 135 ° to each other, in particular because a transient surface (9) between the coupling surfaces (7a, b) is smaller than the two coupling surfaces (7a, b), more specifically, because the surface Transient (9) is smaller than one third of the coupling surfaces (7a, b), respectively. 4. Sliding door guide according to any one of claims 1 to 3, characterized in that the two connecting plates (11a, b), on the base plate (12), are arranged displaced from each other in a longitudinal direction (14) of the lane (2). 5. Sliding door guide according to any of claims 1 to 4, characterized in that the roller assembly (3) has a spring assembly (15) for applying a tensile force to the connecting plates (11 a, b) , preferably because the spring assembly (15) has a tension spring (16) fixed to both connecting plates (11a, b). 6. Sliding door guide according to any of claims 1 to 5, characterized in that, during the coupling of the pairs of rollers (10a, b) to the rail (2), the connecting plates (11a, b) to which the respective pair of rollers (10a, b) are fixed at an angle to each other, preferably because the spring assembly (15), due to the tensile force, deflects the connecting plates (11a, b ) so that an existing clearance between the roller contours (5) and the rail contours (6) is eliminated by pivoting the connecting plates (11 a, b). 7. Sliding door guide according to any one of claims 1 to 6, characterized in that the roller assembly (3) is pivotally fixed to the door support (1) by the base plate (12), preferably by the plate base (12) is fixed to the door support (1) between the two connection plates (11 a, b). 8. Sliding door guide according to any of claims 1 to 7, characterized in that the door support (1) has two clamping arms (17a, b) connected to each other, which are arranged so that they can move one with relative to the other to change the distance between the sliding door and the rail (2). 9. Sliding door guide according to any of claims 1 to 8, characterized in that the rail contour (6) is arranged on the rail (2) so that it is oriented outwards, preferably because the rail (2) It has two opposite rail contours (6) that are oriented outwards and are, in particular, identical. 10. Sliding door guide of claim 9, characterized in that the connecting plates (11a, b) are oriented substantially transverse to the rail (2), so that the respective rail contour (5) of the two rollers ( 4a-d) of the pair of rollers (10a, b) fixed to the respective connecting plate (11a, b) is coupled to the respective rail contour (6) on opposite sides of the rail (2). 11. Sliding door guide according to any of claims 1 to 8, characterized in that the rail (2) has an opening (18) for receiving the roller (4a-d) and the rail contour (6) is an inner contour arranged in the opening. 12. Sliding door guide of claim 11, characterized in that the rail (2) has two opposite rail contours (6) arranged in the opening (18) and are, in particular, identical, preferably because the connecting plate ( 11 a, b) is arranged substantially collinearly in a longitudinal direction (14) of the rail (2), so that the opening (18) receives both rollers (4a-d) of the pair of rollers (10a-b) fixed to the connection plate (11a, b). 13. Sliding door guide according to any of claims 1 to 12, characterized in that the rail (2) has a rail section (19) with a radius and the roller assembly (3) can be moved along the rail section (19) with the radius, preferably because the spring assembly (15) is arranged offset with respect to the rail (2) in the direction of an inner part of the radius. 14. Motor vehicle with a sliding door and at least two sliding door guides that extend along a direction of travel of the motor vehicle and are vertically displaced relative to each other, characterized in that a door guide The upper sliding door of the at least two sliding door guides is a sliding door guide according to any one of claims 1 to 13.