スリーブ閉塞装置、スリーブ、ブッシング、スリーブ閉塞構造、及びスリーブ閉塞構造の製造方法

Japanese Patent JP7332388

B2

To provide a sleeve block device for facilitating the installation work of a block sheet, a sleeve, a busing, a sleeve block structure and a manufacturing method of the sleeve block structure.SOLUTION: A sleeve 20 of a sleeve block structure is arranged at a fireproof hollow wall W in a state of penetrating the fireproof hollow wall W in a thickness direction, forms a protrusion 21 protruding from a surface of the fireproof hollow wall W in the thickness direction, and is inserted with a wiring/piping material 13. The block sheet 30 is wound to an external peripheral face of the protrusion 21 and an external peripheral face of the wiring/piping material 13, and blocks a clearance between the wiring/piping material 13 which is withdrawn from the protrusion 21 and the protrusion 21. An index part 22 is arranged at the external peripheral face of the protrusion 21. The index part 22 is arranged in a position separated to the fireproof hollow wall W side along an axial direction rather than an end in the axial direction of the sleeve 20 located at the protrusion 21, and indicates a regulation length along the axial direction from the end of the protrusion 21 of the block sheet 30 which should be wound to the external peripheral face of the protrusion 21.SELECTED DRAWING: Figure 2

Shinya Tani

JP2019148328A

August 23, 2023

August 13, 2019

Click for automatic bibliography generation  

Mirai Industry Co., Ltd.

F16L5/02; A62C3/16; E04B1/94; F16L5/04; F16L7/02; H02G3/22

JP2014136880A
JP3148209U
JP2016194202A
JP2006029023A
JP2017075643A
JP2001276252A
JP2002102373A
JP2020034061A

WO2006054572A1
DE10350385A1

Makoto Onda
Hironobu Onda

Previous Patent: Bearing retention mechanism

Next Patent: LIQUID PRESSURE TYPE CLUTCH RELEASE CYLINDER DEVICE