Roller carriage for the reception of a sliding door with a height adjusting device

1. A roller carriage that receives a sliding door, the roller carriage comprising a roller module that displaceably affixes the roller carriage at a roller running path, and a basic body attached to the sliding door, wherein the roller module includes a bearing device with at least two rollers disposed on a first side of the roller carriage, the at least two rollers supported to be rotatable at the basic body and inserted into the roller running path and on a plane parallel to the sliding door, wherein the basic body is supported at the roller module and is displaced along a vertical direction for a fine-tuning movement of the basic body, wherein a first adjusting means is disposed at the basic body and is supported at the basic body to rotate with an adjusting thread, and when performing the adjusting movement, the first adjusting means is in operative connection with a second adjusting means of the roller module.

2. The roller carriage according to claim 1 , wherein the first adjusting means is configured to be displaced.

3. The roller carriage according to claim 1 , wherein the first adjusting means includes a contacting portion, and the second adjusting means includes a counter-contacting portion, wherein the contacting portion contacts the counter-contacting portion and forms an operative connection between the first adjusting means and the second adjusting means.

4. The roller carriage according to claim 3 , wherein the contacting portion and the counter-contacting portion are configured to transform a direction of the adjusting movement of the first adjusting means transversely to the vertical direction in a direction of the fine-tuning movement of the basic body along the vertical direction.

5. The roller carriage according to claim 3 , wherein the counter-contacting portion or the contacting portion are configured at least partially as an inclined plane.

6. The roller carriage according to claim 3 , wherein the contacting portion or the counter-contacting portion include(s) an at least partially arched surface.

7. The roller carriage according to claim 3 , wherein the counter-contacting portion or the contacting portion include(s) at least one reinforcing rib that mechanically reinforces in the vertical direction.

8. The roller carriage according to claim 1 , wherein at least one securing device securely fixes a displaceable bearing of the basic body at the roller module.

9. The roller carriage according to claim 1 , wherein the first adjusting means includes a manipulation interface that engages an adjusting force for performing the adjusting movement, wherein the manipulation interface is disposed on a first side of the roller carriage, and a bearing device of the roller module is displaceably affixed at the roller running path and disposed on a second side of the roller carriage, the second side being disposed opposite the first side.

10. The roller carriage according to claim 1 , wherein an abutment device delimits the fine-tuning movement along the vertical direction to a top or to a bottom.

11. A sliding door installation, including a roller running path and at least one roller carriage supported to be displaceable in the roller running path having a basic body that attaches to the sliding door, wherein the basic body is supported at a roller module and displaced along a vertical direction for a fine-tuning movement of the basic body, wherein the roller module includes a bearing device with at least two rollers disposed on a first side of the roller carriage, the at least two rollers supported to be rotatable at the basic body and inserted into the roller running path and on a plane parallel to the sliding door, wherein a first adjusting means is disposed at the basic body to rotate with an adjusting thread, and when performing the adjusting movement, the first adjusting means is in operative connection with a second adjusting means of the roller module.

12. The sliding door installation according to claim 11 , wherein at least one sliding door is supported to be displaceable in the roller running path by means of at least two roller carriages.

13. A method for fine-tuning a height of a sliding door of a sliding door installation having a roller running path and at least one roller carriage supported to be displaceable in the roller running path having a basic body that attaches to the sliding door, wherein the basic body is supported at a roller module to be displaceable along a vertical direction for a fine-tuning movement, wherein the roller module includes a bearing device with at least two rollers disposed on a first side of the roller carriage, the at least two rollers supported to be rotatable at the basic body and inserted into the roller running path and on a plane parallel to the sliding door, wherein a first adjusting means for an adjusting movement is supported to be movable at the basic body, wherein, for a movement of the basic body along the vertical direction in relation to the roller module, when performing the adjusting movement, the first adjusting means is in operative connection with a second adjusting means of the roller module, including the following steps:

attaching a sliding door to a basic body of a roller carriage,

inserting the roller carriage into a roller running path for a displaceable bearing,

performing an adjusting movement of the first adjusting means for producing a fine-tuning movement of the basic body along the vertical direction for setting a defined gap measure between a lower edge of the sliding door and a floor underneath.