| 摘要 |
PROBLEM TO BE SOLVED: To reduce the occurrence of a resonance sound, reduce weight, and improve working efficiency by using rod where a plurality of pipes made of synthetic resin are connected elastically. SOLUTION: A rod where a plurality of pipes 1, 2, 3, 4, and 5 made of synthetic resin are connected elastically is used as a tool for detecting whether an object to be pasted such as a tile and mortar being pasted onto the wall surface of a building has been released from the body of the building or not. More specifically, a grip 8 is grasped and the surface of the tile or the like being pasted onto the surface of the body made of concrete is rubbed by a detector 6. Then, when the tile being released from the body is to be rubbed, the tile is vibrated and a sound that differs from that when a firmly fixed tile is rubbed is generated and almost no resonance sound of pipes is generated, thus reliably detecting the release of the tile. Also, the pipes 1, 2, 3, 4, and 5 made of synthetic resin are made not to extend inadvertently in the shrinking state.
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