Scissor-type frame and commuting passage with scissor-type frame

A scissor-shaped frame, comprising:

• at least one first and one second segment;
• a pivoting bearing connecting the at least one first and one second segments with each other, the pivoting bearing being divided into two pivoting bearing halves perpendicular to a plane of extension of the scissor-shaped frame, each of the at least one first and one second segments being hinged to a component part by a swivel bearing;
• a device for detachable connection of the pivoting bearing halves;
• and
• each of the segments comprising four scissor arms, the four scissor arms including a first and a second scissor arm connected with each other by a swivel bearing and a third and fourth scissor arms each hinge-linked with the respective one of the first and second scissor arms, the bearing heads of the third and fourth scissor arms cooperating to form a pivoting bearing half.