Vehicle for the transport of persons and/or goods

1. A vehicle for transporting persons and/or goods, comprising at least one frame which comprises:

at least one frame element which extends substantially parallel or obliquely to a longitudinal direction of the vehicle,

at least one wheel carrier which is able to be detachably secured to the at least one frame element and which, together with the at least one frame element, forms a receiving region between the at least one wheel carrier and the at least one frame element in which the at least one wheel carrier and the at least one frame element are spaced apart from one another at least in sections so as to form a cavity, and

at least one wheel unit which comprises a wheel and is able to be fixed or is fixed in a rotatably mounted manner at least in the sections in the receiving region between the at least one wheel carrier and the at least one frame element,

wherein the at least one wheel unit comprises at least one wheel bearing about which the wheel of the at least one wheel unit is rotatably mounted, which the at least one wheel bearing is able to be non-rotatably and releasably fixed to the at least one wheel carrier by means of a first wheel bearing element and/or is able to be non-rotatably fixed to an axle of the vehicle fixed to the at least one frame by means of a second wheel bearing element opposite the first wheel bearing element,

wherein at least one screw- or bolt-shaped fixing means, which comprises a head portion at one end and an external thread portion at the opposite end, and which is able to be inserted through at least one through-opening in the at least one wheel carrier and fixed in a recess in the at least one wheel bearing for joining the at least one wheel bearing to the at least one wheel carrier, wherein the at least one through-opening in the at least one wheel carrier has a diameter which is smaller than a diameter of the head portion of the fixing means and wherein the recess comprises an internal thread portion which is of a corresponding design to the external thread portion of the fixing means.

2. The vehicle according to claim 1 , wherein the receiving region formed by the cavity between the at least one wheel carrier and the at least one frame element is formed by an area of the frame element which is recessed with respect to an extension in the direction of the vehicle, by a portion of the at least one wheel carrier which is integrally formed in a direction away from the at least one wheel unit and/or by at least one spacer element which spaces the at least one frame element and the at least one wheel carrier from one another.

3. The vehicle according to claim 2 , wherein the recessed area of the at least one frame element is formed by an integrally formed portion of the at least one frame element and/or by a second recess.

4. The vehicle according to claim 2 , wherein the at least one wheel carrier is able to be fixed or is fixed to the at least one frame element with one end or with two ends outside the receiving region of the at least one frame element.

5. The vehicle according to claim 1 , further comprising at least one base plate which is able to be or is fixed directly or indirectly to the at least one frame.

6. The vehicle according to claim 1 , wherein the at least one wheel carrier comprises at least one continuous aperture through which the at least one wheel unit is accessible from a side of the at least one wheel carrier facing away from the at least one wheel unit.

7. A vehicle for transporting persons and/or goods, comprising at least one frame which comprises:

at least one frame element which extends substantially parallel or obliquely to a longitudinal direction of the vehicle,

at least one wheel carrier which is able to be detachably secured to the at least one frame element and which, together with the at least one frame element, forms a receiving region between the at least one wheel carrier and the at least one frame element in which the at least one wheel carrier and the at least one frame element are spaced apart from one another at least in sections so as to form a cavity,

at least one wheel unit which comprises a wheel and is able to be fixed or is fixed in a rotatably mounted manner at least in the sections in the receiving region between the at least one wheel carrier and the at least one frame element, and

at least one brake unit which comprises at least one brake disc which on a side of the at least one wheel unit facing the at least one wheel carrier in a rotationally fixed manner with the wheel is connectable or connected, and which comprises at least one clamping means arranged on the at least one wheel carrier, by means of which the at least one brake disc is able to be clamped.

8. The vehicle according to claim 7 , wherein the at least one wheel carrier comprises of, on the side facing the at least one wheel unit, at least one holding means to which at least one line fixed to the at least one frame element is able to be fixed.

9. The vehicle according to claim 7 , wherein the at least one wheel unit comprises at least one wheel bearing about which the wheel of the at least one wheel unit is rotatably mounted, which the at least one wheel bearing is able to be non-rotatably and releasably fixed to the at least one wheel carrier by means of a first wheel bearing element and/or is able to be non-rotatably fixed to an axle of the vehicle fixed to the at least one frame by means of a second wheel bearing element opposite the first wheel bearing element.

10. The vehicle according to claim 9 , wherein at least one screw- or bolt-shaped fixing means, which comprises a head portion at one end and an external thread portion at the opposite end, and which is able to be inserted through at least one through-opening in the at least one wheel carrier and fixed in a recess in the at least one wheel bearing for joining the at least one wheel bearing to the at least one wheel carrier, wherein the at least one through-opening in the at least one wheel carrier has a diameter which is smaller than a diameter of the head portion of the fixing means and wherein the recess comprises an internal thread portion which is of a corresponding design to the external thread portion of the fixing means.

11. The vehicle according to claim 7 , wherein the receiving region formed by the cavity between the at least one wheel carrier and the at least one frame element is formed by an area of the frame element which is recessed with respect to an extension in the direction of the vehicle, by a portion of the at least one wheel carrier which is integrally formed in a direction away from the at least one wheel unit and/or by at least one spacer element which spaces the at least one frame element and the at least one wheel carrier from one another.

12. The vehicle according to claim 11 , wherein the recessed area of the at least one frame element is formed by an integrally formed portion of the at least one frame element and/or by a second recess.

13. The vehicle according to claim 11 , wherein the at least one wheel carrier is able to be fixed or is fixed to the at least one frame element with one end or with two ends outside the receiving region of the at least one frame element.

14. The vehicle according to claim 7 , further comprising at least one base plate which is able to be or is fixed directly or indirectly to the at least one frame and on which at least one additional load can be arranged.

15. The vehicle according to claim 7 , wherein the at least one wheel carrier comprises at least one continuous aperture through which the at least one wheel unit is accessible from a side of the at least one wheel carrier facing away from the at least one wheel unit.