| 摘要 |
The present invention refers to a system for transporting, easily manipulating and saving space in stacking door frames, all type of planks and the like structures by means of a double-anchor fastening metallic device which provides a higher rigidity to door and frame structures, the invention referring to a device for fastening frame doors, where the purpose of the system is to improve the fastening method and the setting of the frame to the door, also providing an easier transportation and space saving in the stack thereof. Said device is characterised in that it comprises a metallic piece consisting in a sheet; in which centre portion, preferably square-shaped, are four longitudinally-opposed harpoons per each level, two upper and two lower harpoons (B); the saws (B) of the harpoons are oppositely arranged therebetween and external to both longitudinal end portions of the main body, also being curved or with a square finish (C).
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