Patent ID: 8534620

Claim:
A set comprising: a main stand comprising: three support legs, and a main stand locking element of a locking device mounted on each of the three support legs; a mid-level spreader comprising: a main body having a fastening arrangement constructed and arranged to detachably accommodate a stand head, three arms coupled to the main body, each arm is mounted with a first arm end in an articulated manner to the main body, a mid-level spreader locking element of the locking device mounted on each arm, the mid-level spreader locking element cooperating with the main stand locking element of the locking device on a respective leg of the main stand, the main stand locking element of the locking device and the mid-level spreader locking element of the locking device cooperating to detachably connect each arm for detachable connection to a corresponding support leg of the main stand, wherein the three arms are adapted to spread the support legs of the main stand when the main stand locking element and the mid-level spreader locking element are connected and the mid-level spreader is used in combination with the main stand, and wherein the three arms are adapted to allow the mid-level spreader to stand up when the main stand locking element and the mid-level spreader locking element are detached and the mid-level spreader is used independent of the main stand, wherein the fastening arrangement of the main body accommodates the stand head when the mid-level spreader is used independent of the main stand; and a handle corresponding to each arm, each handle configured to unlock the main stand locking element and the mid-level spreader locking element to detach the arms of the mid-level spreader from the main stand.