Hook i.e. anti-roll claw, for wooden beams of horizontal casing, has maintaining corners mounted on metallic sheet and pierced for fixing beam with nails, where space between corners is hollowed

摘要

The hook has maintaining corners mounted on an inverse U-shaped folded metallic sheet (1) that is provided with a recess (2), where a space between the corners is hollowed. The center distance of the corners is slightly greater than width of a beam. The corners are pierced for fixing the beam with nails. The metallic sheet has vertical parts that are pierced for fixing primary beams by the nails.