JPS5960226U - Structure of ventilation pipe - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例を示す断面図、第２図は通気
管に対する入りすみ用型枠の取り付は位置を平面からみ
た図、第３図は従来例の断面図である。 １・・・通気管、１ａ・・・通気管、２・・・屋上スラ
ブ、６・・・入りすみ用型枠、７・・・アスファルト防
水層。FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a plan view of the attachment of the entry frame to the ventilation pipe, and FIG. 3 is a sectional view of a conventional example. 1... Ventilation pipe, 1a... Ventilation pipe, 2... Rooftop slab, 6... Corner formwork, 7... Asphalt waterproof layer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 通気管の上部をスラブを貫通させてスラブ上方に立ち上
がらせ、この通気管のスラブ上面側の外周部に下端が開
拡した笠状の入りすみ用型枠を挿着し、この型枠の下端
側外周部をスラブ内に埋設し、上記スラブ上面、入りす
み用型枠外周面および通気管上部外周面に防島層を設け
であることを特徴とする通気管の構造。The upper part of the ventilation pipe passes through the slab and rises above the slab, and a shade-shaped entry formwork with an expanded lower end is inserted into the outer periphery of the ventilation pipe on the upper surface of the slab, and the lower end of this formwork is A structure of a ventilation pipe characterized in that a side outer peripheral part is buried in a slab, and an island barrier layer is provided on the upper surface of the slab, the outer peripheral surface of the entry frame, and the outer peripheral surface of the upper part of the ventilation pipe.