| 摘要 |
An expanding fixture for securing an element to a wall or ceiling by securing the element to a bore in the wall or ceiling. The element includes a hollow end portion and an expanding piece adapted to fit within the hollow end for expansion thereof after insertion into the bore. The expanding piece includes at one end thereof two oppositely extending end sections which do not enter the bore and rest on the surface of the wall or ceiling and at the other end of the expanding piece, there is provided an expansion member to press the walls of the hollow section against the wall of the bore. A hammering device which is adapted to fit over the element away from the portion thereof which enters the bore to press the extension member and hollow section when in the bore together to provide a tight fitting engagement between the wall of the bore and the outer wall of the hollow section. |
