PROBLEM TO BE SOLVED: To provide an anti termite tool for a pipe material penetration part which may be attached even before or after construction of a base construction.SOLUTION: There is provided an anti termite tool 3 for preventing a penetration part on a pipe material 2 of a base construction 1 from invasion by termites, which contains anti termite component and being formed in cylindrical shape so as to be fitted onto the pipe material 2. Arrangement mode of the anti termite tool 3 is selected from: a pre-base construction attachment mode where it is attached to be fitted on the pipe material 2 before construction of the base construction 1 and embedded in the base construction 1 by construction of the base construction 1 and a post base construction attachment mode where it is attached to be fitted on the pipe material 2 after construction of the base construction 1 in a manner where one end surface 3j contacts to surface of the base construction 1. Axis direction size 3x of inner peripheral surface 3h of the anti termite tool is longer than walkable distance by the termites which invades boundary part of the anti termite tool 3 and the pipe material 2. Gap size between inner and outer peripheries in the one end surface 3j of the anti termite tool 3 is longer than the walkable distance by the termites which invades a boundary part of the anti termite tool 3 and the base construction 1.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2017,JPO&INPIT【課題】取付けを、基礎躯体の構築の前後を問わず行なうことができる、配管材貫通部用の防蟻具を提供する。【解決手段】防蟻具3は、基礎躯体1における配管材2の貫通部からのシロアリの侵入を防ぐものであって、防蟻成分を含有し、配管材2に嵌まるよう筒状に形成される。防蟻具3は、基礎躯体1の構築前に、配管材2に嵌められて取り付けられ、基礎躯体1の構築によって、その基礎躯体1に埋設されて設置される、基礎構築前取付け設置形態と、基礎躯体1の構築後に、一方の端面3jが基礎躯体1の表面に当接するようにして配管材2に嵌められて取付け設置される、基礎構築後取付け設置形態とを、選択して設置される。防蟻具の内周面3hの軸方向寸法3xは、防蟻具3と配管材2との境界部分を進むシロアリの歩行限界距離よりも長い。防蟻具3の一方の端面3jの内外周間寸法は、防蟻具3と基礎躯体1との境界部分を進むシロアリの歩行限界距離よりも長い。【選択図】 図6
