Patent ID: 7455273

Claim:
A projector holder comprising a connecting element having a coupling element for connection of the projector holder to a supporting structure, and at least three arms which are carried by the connecting element for rotation about mutually parallel axes and for radial displacement relative to said axes, so that a first end of the arms can be brought into alignment with threaded openings in a wall of a projector housing, each arm carrying a coupling device for connecting said first end of a respective arm to a nearby threaded opening in the wall of said housing, and the connecting element being adapted to releasably secure a second end of the connected arms, the coupling device including a screw which extends through an opening in the first end of a respective arm with a given degree of clearance, and two nuts which co-act with the thread on the screw and each of which is mounted on a respective side of said arm, the thread on the screw being able to co-act with the thread in the opening of the projector housing wall so as to enable the screw to be screwed to a desired depth in threaded openings in said housing wall the nuts being movable along the screw in a manner to locate the arm at a chosen distance from the housing wall and so as to be tightened against said arm and secure the screw against rotation, and the connecting element including a screw and a nut which co-acts with said screw of the connecting element, with the second ends of the respective arms including an elongate slot through which the screw of said connecting element extends, and the screw of said connecting element extending through the slots so as to enable a stack of the arms to be clamped stably to the connecting element.