| 摘要 |
<p>A press for inserting a cleat into a joint of a framework is described comprising a frame (1) supporting releasable clamping means (2) positioned over locating jigs (3) for receiving two window sections (4, 5). The mitred ends of the sections (4, 5) are held by the clamping means (2) in a jointing position and are assembled by inserting a cleat or cleats by means of a power operated cleat insertion tool (9) connected by a yoke with a pneumatic piston and cylinder assembly into preformed slots (6, 7) in the mitred ends of the sections (4, 5). A cleat is also described comprising a flat plate rounded at one end with two grooves extending axially of the cleat. Two ribs are formed on each side of the cleat which diverge towards the rounded end of the cleat, the ribs being tapered to form cutting surfaces.</p> |
