WO2005116510A1 - T型分岐管継手 - Google Patents
T型分岐管継手 Download PDFInfo
- Publication number
- WO2005116510A1 WO2005116510A1 PCT/JP2005/009778 JP2005009778W WO2005116510A1 WO 2005116510 A1 WO2005116510 A1 WO 2005116510A1 JP 2005009778 W JP2005009778 W JP 2005009778W WO 2005116510 A1 WO2005116510 A1 WO 2005116510A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- branch pipe
- flat plate
- pipe joint
- shaped branch
- shaped
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
Definitions
- the present invention relates to a T-shaped branch pipe joint, and more particularly to a T-shaped branch pipe joint manufactured by press molding.
- T-shaped branch pipe joint for piping has generally been manufactured by bulge molding using lead.
- the T-shaped branch pipe joint thus manufactured has problems such as high manufacturing cost.
- FIG. 8 (A) is a front view of the T-shaped branch pipe joint (100)
- FIG. 8 (B) is a side view
- FIG. 8 (C) is a central longitudinal sectional view of FIG. 8 (A).
- the T-shaped branch pipe joint (100) has a main pipe section (101) having a pair of openings at both ends, and a branch pipe section (102) orthogonal to the main pipe section (101).
- the main pipe section (101) and the branch pipe section (102) are formed by bending a single plate, and the two ends of the plate along a plane passing through the center line of the main pipe section (101) and the center line of the branch pipe section (102). It is formed by overlapping and joining together.
- the cross-sectional shape of the main pipe part (101) is substantially U-shaped at a position passing through the center of the branch pipe part (102) (the center position of the main pipe part (101)). It has a substantially C-shaped cross section at both ends of the main pipe (101).
- a flat plate part (103) where the corners of the plate overlap each other is formed.
- the T-shaped branch pipe joint (100) has a joint including the mating surface of the flat plate section (103) with the pipe (P) inserted into the main pipe section (101) and the branch pipe section (102). The pipes (P) are joined by brazing the surfaces together.
- Patent Document 1 Japanese Patent No. 2660427
- the present invention has been made in view of such problems, and an object of the present invention is to increase the brazing strength of a ⁇ -type branch pipe joint of a type manufactured by press forming, and at the same time, increase the main pipe portion and The operability of brazing is also to be improved by allowing each pipe to be brazed separately to the branch pipe.
- the present invention provides a T-shaped branch pipe joint manufactured by press molding, in which a flat plate portion (13) is provided with an engagement claw (14) for engaging the flat plate portion (13) to suppress springback after press molding. Thereby, it is possible to prevent the gap between the joining surfaces from becoming large.
- the first invention has a main pipe portion (11) having a pair of openings at both ends, a branch pipe portion (12) orthogonal to the main pipe portion (11), and a single plate.
- (la) is bent, and both ends of the plate (la) are overlapped and joined along a plane passing through the center line of the main pipe part (11) and the center line of the branch pipe part (12).
- 11) and a branch pipe part (12) are formed, and at the corner between the main pipe part (11) and the branch pipe part (12), a flat plate part (13 ) Is based on the assumption that a T-shaped branch pipe joint is formed.
- the T-shaped branch pipe joint is provided with a member for engaging flat plate portions (13) overlapping each other. Toward dovetails (14), featuring!
- the T-shaped branch pipe joint formed by press-molding using one plate (la) is provided between the main pipe part (11) and the branch pipe part (12).
- the flat plate portions (13) overlapping each other at the corners are engaged by the engagement claws (14). Therefore, the gap between the joint surfaces can be kept to a minimum and constant against springback after press molding. For this reason, the brazing material flows uniformly into the gap and solidifies during brazing, so that the brazing quality is stabilized. Even if the pipes are brazed one by one, the joints are not deformed because the flat portions (13) are engaged with each other by the engagement claws (14)!
- a second invention is the T-shaped branch pipe joint according to the first invention, wherein the engaging claw (14) is formed on one of the flat plate portions (13) overlapping each other, and By being folded along the other side of (13), the two flat portions (13) are configured to engage with each other,
- the two flat plates are folded by folding the engaging claw (14) formed on one of the flat plate portions (13) overlapping each other along the other surface of the flat plate portion (13).
- the part (13) engages. This prevents springback after press molding.
- a third invention is the T-shaped branch pipe joint according to the second invention, wherein the flat plate portion (13) is connected to a straight line connecting the tip of the main pipe (11) and the tip of the branch pipe (12). It is characterized in that it is formed as an edge and is formed in a substantially triangular area defined by the edge and the base end of the branch pipe portion (12).
- the engaging claw (14) is a triangular area that becomes a corner of the rectangular area at the four corners of the plate (la). Formed. For this reason, the rectangular plate (la) material can be efficiently used up to the corners, and a material in which the engaging claws (14) protrude further from the corners of the rectangular plate (la) is unnecessary.
- a fourth invention is characterized in that, in the T-shaped branch pipe joint according to the third invention, the engaging claw (14) is arranged at a center position on an edge of the flat plate portion (13).
- the flat plate portions (13) overlapping each other are engaged with the center of the edge portion of the flat plate portion (13) by the engaging claw (14). (13) It is possible to stably hold each other.
- the engaging claw (14) is formed in a triangular shape whose width becomes narrower as the distance from the edge of the flat plate portion (13) increases. It is characterized by having. [0020]
- the engaging claw (14) can be formed in a triangular region substantially similar to the flat plate portion (13), the flat plate portions (13) can be extremely stably formed over substantially the entire surface thereof. Can hold.
- the main pipe portion (11) and the branch pipe portion (12) have a fitting portion into which a pipe (P) to be inserted is fitted. (11a, 12a) and a small-diameter portion (1 lb, 12b) having a smaller diameter than the fitting portion (lla, 12a).
- the nove (P) is inserted into the main pipe (11) and the branch pipe (12), and is fitted in the back of the fitting portion (11a, 12a). Since the small diameter portion (llb, 12b) is provided, it is possible to prevent the pipe (P) from being excessively inserted or insufficiently inserted.
- the T-shaped branch pipe joint is provided with the engagement claws (14) for engaging the mutually overlapping flat plate portions (13), so that the springback after press molding is reduced. Since the gap between the joint surfaces can be kept to a minimum and constant, the brazing material flows uniformly into the gap and solidifies during brazing. Therefore, brazing quality is stable and brazing strength can be increased. For this reason, even when connecting a pipe (P) through which high-pressure refrigerant flows through the refrigerant pipe, it can be sufficiently used.
- the engaging claw (14) is formed on one of the flat plate portions (13) overlapping each other, springback after press molding can be prevented, and both of the flat plate portions (13) can be prevented. It is not necessary to form the engaging claw (14) on the rim. Therefore, the configuration of the T-shaped branch pipe joint can be simplified.
- the flat plate portion (13) has an edge as a straight line connecting the tip of the main pipe (11) and the tip of the branch pipe (12), and the edge and the branch.
- the flat plate portions (13) overlapping each other are engaged with the center of the edge portion of the flat plate portion (13) by the engaging claw (14).
- the flat plate portions (13) can be stably held with each other, leading to brazing stability and further improvement in brazing strength can be expected.
- the engagement claws (14) can be formed in a triangular region substantially similar to the flat plate portion (13), so that the flat plate portions (13) can be almost entirely formed.
- the brazing can be held extremely stably, so that further improvement in brazing stability and further improvement in brazing strength can be expected.
- the fitting portions (11a, 12a) into which the pipe (P) to be inserted is fitted into the main pipe portion (11) and the branch pipe portion (12), and the fitting portions.
- the small-diameter portion (lib, 12b) smaller in diameter than (11a, 12a) it is possible to prevent the pipe) from being excessively inserted or insufficiently inserted.
- a part of the pipe (P) is formed as an annular projection to prevent excessive insertion or insufficient insertion, but such complicated processing is not required on the end face of the pipe).
- the configuration can be simplified.
- FIG. 1 is a front view of a state in which a pipe is joined to a T-shaped branch pipe joint according to an embodiment of the present invention.
- FIG. 2 is a plan view of FIG. 1.
- FIG. 3 is a right side view of FIG. 1.
- FIG. 4 is a cross-sectional view of a relevant part of the T-shaped branch pipe joint (a cross-sectional view taken along line IV-IV in FIG. 3).
- FIG. 5 is a sectional view taken along line VV of FIG. 1.
- FIG. 6 is a sectional view taken along line VI-VI of FIG. 1.
- FIG. 7 is a front view showing a modification of FIG. 1.
- FIG. 8 shows the structure of a conventional T-shaped branch pipe joint, where (A) is a front view, (B) is a side view, and (C) is a longitudinal sectional view at the center.
- FIG. 1 is a front view of a state in which a pipe (P) is joined to the T-shaped branch pipe joint according to this embodiment
- FIG. 2 is a plan view
- FIG. 3 is a right side view
- Fig. 4 is a cross-sectional view of the main part of the T-shaped branch pipe joint (corresponding to the cross section taken along line IV-IV in Fig. 3).
- Fig. 5 is a cross-sectional view taken along line V-V in Fig. 1.
- FIG. 6 is a sectional view taken along line VI.
- the T-shaped branch pipe joint (1) has a main pipe part (11) having a pair of openings at both ends and a branch pipe part (12) orthogonal to the main pipe part (11). are doing.
- This T-shaped branch pipe joint (1) has a cross-sectional shape perpendicular to the center line of the main pipe (11), but at a position passing through the center of the branch pipe (12), as shown in Fig. 5, a substantially U-shaped cross-section At both end positions of the main pipe (11), the cross section is substantially C-shaped as shown in FIG.
- the T-shaped branch pipe joint (1) is formed by bending a single plate (la) and extending the plate along a plane passing through the center line of the main pipe part (11) and the center line of the branch pipe part (12).
- the main pipe (11) and the branch pipe (12) are formed by overlapping and joining both ends of (la).
- the corners between the main pipe section (11) and the branch pipe section (12) have flat plate sections (13) where the corners of the plate (la) overlap each other. Is formed.
- the T-shaped branch pipe joint (1) is formed with an engagement claw (14) for engaging the mutually overlapping flat plate portions (13).
- the engaging claw (14) is formed on one of the flat plate portions (13) overlapping each other. Specifically, in FIG. ), An engaging claw (14) is formed on the flat plate portion (13) on the far side (see FIG. 4), and the flat plate portion (13) is overlapped on the right side of the branch pipe portion (12). Regarding the overlapping flat plate portions (13, 13), an engaging claw (14) is formed on the front flat plate portion (13). The engaging claw (14) is folded back along the surface of the flat plate (13) on the other side to pinch the flat plate (13) on the other side and engage both flat plates (13). ing.
- the flat plate portion (13) has, as an edge, a straight line connecting the tip of the main pipe portion (11) and the tip of the branch pipe portion (12), and has a base between the edge and the branch pipe portion (12). It is formed in a substantially triangular area defined by the ends.
- the engaging claw (14) is disposed at a center position of the edge of the flat plate portion (13), and is formed in a triangular shape whose width becomes narrower as the distance from the edge of the flat plate portion (13) increases. .
- the engaging claw (14) is substantially similar to the flat plate portion (13), is slightly smaller, and is formed in a triangular shape.
- the main pipe part (11) and the branch pipe part (12) have a fitting part (11a, 12a) into which the pipe (P) to be inserted is fitted, and a fitting part (11a, 12a).
- the small diameter portion (l lb, 12b) is formed by squeezing the inside of the fitting portion (l la, 12a) to a certain extent.
- springback after press forming can be prevented only by forming the engagement claws (14) on one of the flat plate portions (13) overlapping each other, and both flat plate portions (13) can be prevented. Since it is not necessary to form the engaging claw (14), the configuration of the T-shaped branch pipe joint can be simplified. Further, the flat plate portion (13) has an edge as a straight line connecting the distal end of the main pipe portion (11) and the distal end of the branch pipe portion (12), and is formed by the edge and the base end of the branch pipe portion (12). Since the engaging claws (14) can be formed in the triangular area on the outer side of the flat plate portion (13) of the plate (la) before press forming by being formed in the substantially triangular area defined, the engaging claws can be formed. The plate (la) including (14) can be efficiently removed from the rectangular material plate. Therefore, waste of materials can be reduced and cost increase can be prevented.
- the flat plate portions (13) overlapping each other are engaged with the engaging claws (14) at the center of the edge portion of the flat plate portion (13), and the engaging claws are formed. Since (14) is formed in a triangle substantially similar to the flat plate portion (13), the flat plate portions (13) can be held extremely stably over almost the entire surface thereof. The attachment strength can be improved.
- the fitting portion (11a, 12a) into which the pipe (P) to be inserted is fitted into the main pipe portion (11) and the branch pipe portion (12), and the fitting portion (11a
- the pipe can be prevented from being excessively inserted or insufficiently inserted.
- a part of the pipe (P) is formed as an annular projection (see the phantom line in FIG. 5) to prevent over-insertion or under-insertion.
- Such complicated processing is not required, and the configuration can be simplified.
- the present invention may be configured as follows in the above embodiment.
- the shape of the engagement claw (14) may be changed as shown in FIG.
- the engaging claw (14) is formed in a rectangular shape and is arranged at the center of the flat plate portion (13). Further, in the figure, both the right and left sides of the branch pipe portion (12) are formed with engaging claws (14) on the flat plate portion (13) on the back side.
- the pressure resistance of the T-shaped branch pipe joint (1) may slightly decrease when the engaging claw (14) is reduced in this way, the process of folding the engaging claw (14) itself can be easily performed. Thus, the workability can be further improved.
- the present invention is useful for a T-shaped branch pipe joint manufactured by press molding.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES05743674T ES2409344T3 (es) | 2004-05-28 | 2005-05-27 | Acoplamiento para tubos en T |
US10/564,152 US7422247B2 (en) | 2004-05-28 | 2005-05-27 | Branch tee fitting |
EP05743674.3A EP1645791B1 (en) | 2004-05-28 | 2005-05-27 | T-type branching joint |
AU2005248226A AU2005248226B2 (en) | 2004-05-28 | 2005-05-27 | Branch Tee Fitting |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004159114A JP3750684B2 (ja) | 2004-05-28 | 2004-05-28 | T型分岐管継手 |
JP2004-159114 | 2004-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005116510A1 true WO2005116510A1 (ja) | 2005-12-08 |
Family
ID=35450967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/009778 WO2005116510A1 (ja) | 2004-05-28 | 2005-05-27 | T型分岐管継手 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7422247B2 (ja) |
EP (1) | EP1645791B1 (ja) |
JP (1) | JP3750684B2 (ja) |
KR (1) | KR100737076B1 (ja) |
CN (1) | CN100470109C (ja) |
AU (1) | AU2005248226B2 (ja) |
ES (1) | ES2409344T3 (ja) |
WO (1) | WO2005116510A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008034294A1 (fr) * | 2006-09-19 | 2008-03-27 | Luhao Leng | Procédé de fabrication de tête d'outil à main et laminoir à cet effet |
US8746746B1 (en) * | 2013-02-28 | 2014-06-10 | Charlie J. Schafer | Nestable connector |
WO2016100396A1 (en) | 2014-12-19 | 2016-06-23 | Alphinity, Llc | Encapsulated system for pressurized fluid processes |
CN108361461A (zh) * | 2018-03-08 | 2018-08-03 | 蒋央芳 | 一种多通管接头 |
FI128639B (en) * | 2019-12-20 | 2020-09-15 | Valmet Technologies Oy | Washer for cleaning exhaust gases |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01299398A (ja) * | 1988-05-24 | 1989-12-04 | Usui Internatl Ind Co Ltd | 分岐管継手の製造方法 |
JPH035098A (ja) * | 1989-06-02 | 1991-01-10 | Usui Internatl Ind Co Ltd | 分岐接続用継手本体、継手およびその接続方法 |
JPH08219355A (ja) * | 1995-02-10 | 1996-08-30 | Girufuii Kk | 塩化ビニル鋼管継手とその製造方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1020123A (en) * | 1910-04-09 | 1912-03-12 | Arthur Brampton | Conduit-fitting for electrical and other purposes. |
US1921584A (en) * | 1931-07-06 | 1933-08-08 | Mueller Brass Co | Mandrel |
US1850049A (en) * | 1932-01-29 | 1932-03-15 | Jr Edward S Cornell | Pipe fitting and method of making the same |
US2040628A (en) * | 1934-08-03 | 1936-05-12 | Chase Companies Inc | Branch-fitting and method of making |
US2243809A (en) * | 1934-10-03 | 1941-05-27 | W S A Inc | Method of making hollow wrought metal articles |
US2183271A (en) * | 1938-03-07 | 1939-12-12 | Wendel Frans Bertil | Pipe fitting and method of producing the same |
US3944260A (en) * | 1975-01-08 | 1976-03-16 | Petroczky Frank G | Pipe repair fittings |
JP2660427B2 (ja) * | 1988-07-28 | 1997-10-08 | 臼井国際産業株式会社 | 分岐管継手 |
CN2315412Y (zh) * | 1997-12-07 | 1999-04-21 | 柳光坤 | 三通联接器 |
AU761235B2 (en) * | 1999-04-13 | 2003-05-29 | Joseph Mckenna | Method of forming T-connectors |
CN2435615Y (zh) * | 2000-03-24 | 2001-06-20 | 湘潭晨辉化学建材有限责任公司 | 塑料合金正三通管件 |
CN2477927Y (zh) * | 2001-01-20 | 2002-02-20 | 中国航天工业供销东北公司 | 热熔插接管道 |
CN2495883Y (zh) * | 2001-09-07 | 2002-06-19 | 薛家谦 | 金属塑料复合管件 |
-
2004
- 2004-05-28 JP JP2004159114A patent/JP3750684B2/ja not_active Expired - Fee Related
-
2005
- 2005-05-27 CN CNB2005800004976A patent/CN100470109C/zh not_active Expired - Fee Related
- 2005-05-27 WO PCT/JP2005/009778 patent/WO2005116510A1/ja not_active Application Discontinuation
- 2005-05-27 AU AU2005248226A patent/AU2005248226B2/en not_active Ceased
- 2005-05-27 US US10/564,152 patent/US7422247B2/en not_active Expired - Fee Related
- 2005-05-27 EP EP05743674.3A patent/EP1645791B1/en not_active Not-in-force
- 2005-05-27 ES ES05743674T patent/ES2409344T3/es active Active
- 2005-05-27 KR KR1020067000748A patent/KR100737076B1/ko not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01299398A (ja) * | 1988-05-24 | 1989-12-04 | Usui Internatl Ind Co Ltd | 分岐管継手の製造方法 |
JPH035098A (ja) * | 1989-06-02 | 1991-01-10 | Usui Internatl Ind Co Ltd | 分岐接続用継手本体、継手およびその接続方法 |
JPH08219355A (ja) * | 1995-02-10 | 1996-08-30 | Girufuii Kk | 塩化ビニル鋼管継手とその製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1645791A4 * |
Also Published As
Publication number | Publication date |
---|---|
JP3750684B2 (ja) | 2006-03-01 |
JP2005337434A (ja) | 2005-12-08 |
ES2409344T3 (es) | 2013-06-26 |
CN100470109C (zh) | 2009-03-18 |
CN1806143A (zh) | 2006-07-19 |
KR100737076B1 (ko) | 2007-07-06 |
EP1645791A4 (en) | 2012-03-14 |
US7422247B2 (en) | 2008-09-09 |
KR20060027864A (ko) | 2006-03-28 |
EP1645791A1 (en) | 2006-04-12 |
EP1645791B1 (en) | 2013-04-24 |
AU2005248226B2 (en) | 2007-11-22 |
US20070102925A1 (en) | 2007-05-10 |
AU2005248226A1 (en) | 2005-12-08 |
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