| 摘要 |
PURPOSE: A safe thumbtack is provided to prevent from being damaged due to a needle of the thumb tack by forming Z shaped groove inside the thumb tack body. CONSTITUTION: A safe thumbtack comprises a needle(30), a magnet sticker(52) and a pin body(40). The thumbtack needle is inserted into the pin body. If the tack needle is turned in 90 degrees from the pin body, the pin body is projected from or inserted into the pin body. The pin body comprises a Z shaped groove inside. The thumbtack needle can repeatedly enter into and exit from the Z shaped groove. The magnet sticker fixes thumbtack to various typed walls in a state when thumbtack needle is entered into the pin body. |
