Pram

1 . A pram or pram frame, comprising:

a pusher bar for pushing the pram or pram frame having a horizontal section, a transition section and a connecting section, wherein the transition section is between the horizontal section and the connecting section; and

at least one force sensor device for detecting a direction or an amount of a force or a force component acting on the pusher bar or for detecting a variable derived from the force or the force component,

wherein the pusher bar using the at least one force sensor device is designed to be sensitive over at least 80% of the horizontal section of the pusher bar,

wherein the at least one force sensor device comprises at least one sensor unit arranged in the horizontal section,

wherein the at least one force sensor device comprises a sheathing part at least partially sheathing the at least one sensor unit, and

wherein the sheathing part has a straight section and at least one curved section, wherein the curved section extends into the transition section.

2 . The pram or pram frame according to claim 1 ,

wherein the at least one force sensor device comprises:

a base part, designed to at least partially accommodate at least one sensor unit;

wherein the sheathing part sheaths the base part at least partially in a handle area of the pusher bar, and which is connected to the at least one sensor unit,

wherein the sheathing part is movable with respect to the base part, wherein an intermediate space is present between the base part and the sheathing part, and

wherein the at least one sensor unit is designed to detect a movement between the sheathing part and the base part.

3 . The pram or pram frame according to claim 2 , wherein

the base part has a straight section and has at least one curved section, and is designed as a solid or hollow profile with a polygonal or round cross section, or

the sheathing part is designed as a solid or hollow profile with a polygonal or round cross-section, and a base profile is designed in one piece, or

the sheathing part is formed from two or more pieces, each of which may be monolithic in itself, or

the sheathing part is formed at least in sections in the transition section by two half shells or

the sheathing part surrounds the base part, over an angular range of at least 180°.

4 . The pram or pram frame according to claim 1 , wherein

at least one motor is provided for assisted driving of the pram or pram frame.

5 . The pram or pram frame according to claim 4 , wherein

at least one control device is operatively connected to the at least one force sensor device, such that an output of the at least one force sensor device can be used to control the at least one motor.

6 . The pram or pram frame according to claim 5 , wherein

the at least one control device is designed to control or regulate the output of the at least one motor as a function of the output of the at least one force sensor device in discrete steps or continuously, and is designed in such a way that at least one motor is started when a first threshold of the force or force component or the variable derived therefrom is exceeded, and designed in such a way that the at least one motor is stopped or kept at constant power when a second threshold of the force or force component or the variable derived therefrom is exceeded.

7 . The pram or pram frame according to claim 1 , wherein

the at least one force sensor device comprises at least two sensor units, which extend at least in sections, wherein a first of the at least two sensor units is positioned adjacent or beyond a first end of the horizontal section and a second of the at least two sensor units is positioned adjacent or beyond a second end of the horizontal section such that the at least two sensor units extend to adjacent opposite ends of the horizontal section or extend beyond the opposite ends.

8 . The pram or pram frame according to claim 1 , wherein

the at least one force sensor device comprises at least two parts which are movable relative to one another and at least one sensor unit which measures an amount of relative movement between the at least two parts.

9 . The pram or pram frame according to claim 1 , wherein

a first part and a second part of the at least one force sensor device are movable relative to each other in at least substantially radial direction and at least substantially in a direction lying in a plane spanned by a forward direction and a vertical.

10 . The pram or pram frame according to claim 1 , wherein

a first part and a second part of the at least one force sensor device are fixedly connected to at least one sensor unit.

11 . The pram or pram frame according to claim 1 , further comprising a second force sensor device

configured to measure an electrical resistance or an electrical resistance change or comprises at least one strain gauge arranged in the transition section of the pusher bar.

12 . The pram or pram frame according to claim 11 , wherein the second force sensor device is configured as a bending beam sensor, wherein a torque exerted on a measuring body acts on the at least one strain gauge.