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1. 发明专利

JPH0549710A PIPE, HEADER, AND PIPING STRUCTURE 失效
公开(公告)号：JPH0549710A
公开(公告)日：1993-03-02
申请号：JP21388691
申请日：1991-08-26
申请人： TAKENAKA KOMUTEN CO , NIPPON KOKAN PIPE FITTING MFG
发明人： OOI MOTONORI , ASADA KAZUO , NISHI YASUYUKI , TOMATSU TOSHIYUKI , TOUJIYA SHIGENORI , MATSUURA HARUKI
IPC分类号： A62C35/68
摘要： PURPOSE:To provide a flexible fire pipe structure far fire extinguishment vertically adjustable at a piping position and horizontally adjustable in a narrow range, and easily and speedily being set by a bending work in a narrow space wherein the flexible fire pipe is prevented from extending or deforming thereof by water pressure. CONSTITUTION:A mechanical joint 30 equipped with the slip-off preventing function for a flexible fire pipe A by a slip preventing ring 41 is connected at the branched position of a main pipe 20 for extinguishment. A recessed fitting part 4 engaged with the slip-off preventing ring 41 in the case where the flexible fire pipe A tends to slip out from the mechanical joint 30 is formed. The pipe A has different diameter parts 2 and 3 for flexure.

2. 发明专利

JPH0568722A PIPE, HEADER, AND PIPING STRUCTURE 失效
公开(公告)号：JPH0568722A
公开(公告)日：1993-03-23
申请号：JP23462591
申请日：1991-09-13
申请人： TAKENAKA KOMUTEN CO , NIPPON KOKAN PIPE FITTING MFG
发明人： OOI MOTONORI , ASADA KAZUO , NISHI YASUYUKI , TOMATSU TOSHIYUKI , TOUJIYA SHIGENORI , MATSUURA HARUKI
IPC分类号： A62C35/68 , F16L9/02 , F16L19/08 , F16L27/12
摘要： PURPOSE:To carry out the construction of a winding pipe for fire fighting piping without being extended or deformed by the water pressure, although the winding construction can be carried out easily and rapidly in a narrow space, and to carry out a vertical regulation of the piping position, and a horizontal regulation in a relatively narrow scope. CONSTITUTION:A mechanical coupling 30 which has a function to stop a fall of a winding pipe A by a stop ring 41 is connected to the branching position of a main pipe 20 for fire fighting. A recess 4 to engage with the stop ring 41 when the winding pipe A is going to come out from the mechanical coupling 30 is provided to the winding pipe A. Different diameter parts 2 and 3 for bending are formed to the winding pipe A.

3. 发明专利

JPH0875057A PIPE END ANTICORROSION JOINT 失效
公开(公告)号：JPH0875057A
公开(公告)日：1996-03-19
申请号：JP21268194
申请日：1994-09-06
申请人： NIPPON KOKAN PIPE FITTING MFG
发明人： NISHIGATA TORU , TOUJIYA SHIGENORI
IPC分类号： F16L15/04 , F16L58/18
摘要： PURPOSE: To prevent a pipe end from rusting due to infiltration of water, by making a lip part, while crushing a backup material, cover this backup material, so that the lip part can be brought down inward, when the sealing lip part follows up a pipe unit. CONSTITUTION: When a pipe unit is screwed into a joint main unit 1, a synthetic resin-made flexible sealing lip part 9 into contact with an internal surface of the pipe unit, by pressing in an axial direction a peripheral surface of the lip part 9 while rubbing each other with the internal surface of the pipe unit in the peripheral direction, is brought down to be deformed by following up the pipe unit. When the sealing lip part 9, following up the pipe unit, is brought down to be deformed, the sealing lip part 9, while crushing a backup material 12 arranged adjacently inside a root part of the lip part to have elasticity, covers this backup material 12 to be brought down inward. Consequently, the sealing lip part 9, in a condition that it is backed up by the backup material 12, is closely attached to the internal surface of the pipe unit, to hold water- tightness of a space between the internal surface of the pipe unit and a sleeve part 3.

4. 发明专利

JPH0875058A PIPE END ANTICORROSION JOINT 失效
公开(公告)号：JPH0875058A
公开(公告)日：1996-03-19
申请号：JP21268294
申请日：1994-09-06
申请人： NIPPON KOKAN PIPE FITTING MFG
发明人： NISHIGATA TORU , TOUJIYA SHIGENORI
IPC分类号： F16L15/04 , F16L58/18
摘要： PURPOSE: To prevent a pipe end from rusting due to infiltration of water by forming a sleeve part so that it can be deformed elastically by contracting a diameter with the point narrowed in a point end side part from a lip part. CONSTITUTION: When a pipe unit is screwed into a joint main unit 1, a synthetic resin-made flexible sealing lip part 9, brought into contact with an internal surface of the pipe unit, is brought down to be deformed by following up the pipe unit while rubbing each other a peripheral surface of the lip part 9 with the internal surface of the pipe unit in the peripheral direction. The sealing lip part 9, when brought down to be deformed by following up the pipe unit, covers a backup material 12 while crushing it, and the sealing lip part is brought down inward. Consequently, water-tightness of a space, between the internal surface of the pipe unit and a sleeve part 3, is held. When an internal diameter of the pipe unit is formed small, a point end side part including a part from this part, provided with the lip part 9, in the sleeve part 3 is deformed elastically by contracting a diameter. Consequently, press contact force of the sealing lip part 9 is suppressed, and pulling the sealing lip part 9 torn off can be prevented.

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