Collision detection device for adjustable furniture

A collision detection device configured to be arranged in an adjustable piece of furniture comprising a driving arrangement and a first part and a second part being moveable relative to each other, said collision detection device being configured to detect a collision during motion of said adjustable piece of furniture, the collision detection device comprising:

• a holder configured to, when in use, be arranged to one of the first and second parts of the adjustable piece of furniture to be at least indirectly in contact with a part of the driving arrangement;
• a circuit board arranged on the holder, said circuit board comprising a wiring circuit on at least one of its sides;
• wherein the holder is configured to, when arranged to the adjustable piece of furniture, transfer a force from the driving arrangement acting on the holder to the circuit board such that said force implies a flexure of the circuit board;
• and
• wherein the wiring circuit is configured to have an electrical characteristic that depend on the flexure of the circuit board.