Abstract: A wire fastening device and a wire extending structure capable of extending a wire with an appropriate tension between support. The wire fastening device includes a case, a cap bolt and a pulling cylinder. The case has a wire engaging portion at one end thereof and a female thread formed on an inner circumference thereof. The cap bolt is inserted into the pulling cylinder with the head abutted with the pulling cylinder and has a male thread formed on an outer circumference thereof. The pulling cylinder is held on the cap bolt rotatably and the case, with one end of the wire engaged therewith, is screwed on the pulling cylinder.

Abstract: A method of fixedly securing an lighting fixture to a ceiling of a building structure, comprises a first securing step for securing an anchor grip at a prescribed position on a bottom face of a slab of the building structure, a flexible suspender being inserted through the anchor grip; a second securing step for securing a suspender grasping assembly temporarily to a lighting fixture support member; a suspending step for inserting the flexible suspender from the lower free end thereof through the suspender grasping assembly and then raising the suspender grasping assembly along the flexible suspender, while the lighting fixture support member is temporarily fixed to a temporary set position on the suspender; an adjusting step for adjusting height of the lighting fixture support member to fit into a ceiling finish board, by moving the suspender grasping assembly along the flexible suspender together with the lighting fixture member; and a fixing step for fixing the lighting fixture support member to the flexib

Abstract: A system for fixedly securing an illumination instrument to a ceiling of a building structure, comprises a flexible suspender adapted to be connected to an under surface of a slab of the building structure and extending generally vertically therefrom, a suspender grasping assembly for releasably grasping the flexible suspender to move therealong in a vertical direction and to be held at any desired height, and engaging member frictionally engaging with an outer periphery of the suspender grasping assembly to hold an illumination instrument support member at a temporal set position.

Abstract: A device for hanging a building member contains a gripper adapted to be secured to an anchor member embeded in a ceiling wall of a building, a wire article hanging from and secured to the gripper at its one end, and a second gripper adapted for securing the other end of the wire article and for hanging a building member. The gripper allows the wire article to pass in one direction along the longitudinal direction of the wire article but not in the opposite direction.