| 摘要 |
PROBLEM TO BE SOLVED: To provide a hook for engaging a hanger or the like detachably attached in a one-touch manner to a lintel and a horizontal piece of timber in which flaws (machine screw holes or the like) or removing marks are not left after it is removed and a beam can be diagonally engaged on the lintel at the corner of a room without falling. SOLUTION: A hook is provided with teeth 58 for holding a lintel therebetween and is prevented from falling in accordance with the expansion of a spring and spring hook and can be detachably attached thereto. The hook is reversed to be used for a horizontal piece of timber. Two hooks are attached to the lintels to diagonally support a beam by the hooks at the corner of a room.
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