JP4160600B2 - Hose connection bracket - Google Patents
Hose connection bracket Download PDFInfo
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- JP4160600B2 JP4160600B2 JP2006006609A JP2006006609A JP4160600B2 JP 4160600 B2 JP4160600 B2 JP 4160600B2 JP 2006006609 A JP2006006609 A JP 2006006609A JP 2006006609 A JP2006006609 A JP 2006006609A JP 4160600 B2 JP4160600 B2 JP 4160600B2
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- Prior art keywords
- metal fitting
- fitting
- receiving
- engagement
- tip
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- 239000002184 metal Substances 0.000 claims description 70
- 210000000078 claw Anatomy 0.000 claims description 36
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 238000012856 packing Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
Images
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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/086—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of latching members pushed radially by spring-like elements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
本発明はホース接続金具に関するものであって、特に消防用ホースの接続金具であって、差し金具と受け金具とを結合する、一般に三鉤式金具と呼ばれる形式の接続金具の改良に関するものである。 The present invention relates to a hose connection fitting, and in particular, to a fire hose connection fitting, which relates to an improvement of a connection fitting of a type generally called a three-piece fitting that joins an insertion fitting and a receiving fitting. .
従来三鉤式金具は、メーカーにより具体的な構造に多少に差異はあるものの、互いに接続可能で互換性を有しており、消防用ホースの接続金具としてわが国において広く採用されている。 Conventional three-piece metal fittings can be connected to each other and have interchangeability, although there are some differences in specific structures depending on the manufacturer, and are widely used in Japan as connection fittings for fire fighting hoses.
三鉤式金具は図１に示すように、それぞれホース１の端末に取り付けられた差し金具２と受け金具３とよりなっており、当該差し金具２及び受け金具３は、それぞれその基部にホース結合筒部４が形成され、当該ホース結合筒部４の外周には竹の子状の凹凸条５が形成されている。
As shown in FIG. 1, the three-piece metal fitting is composed of a metal fitting 2 and a metal fitting 3 each attached to the end of the hose 1, and the metal fitting 2 and the metal fitting 3 are respectively connected to the base thereof by a hose. A tube portion 4 is formed, and a bamboo scalloped
そしてそのホース結合筒部４のその外側にホース１の端末を嵌合し、さらにその外側に筒状の口巻き布６が嵌合され、さらにその外側に金属リング７を嵌合し、その金属リング７をかしめてホース１をホース結合筒部４に固定している。
Then, the end of the hose 1 is fitted to the outside of the hose coupling cylinder portion 4, the tubular mouth-wrapping
そして差し金具２は、その先端部外周に大径部８が形成され、当該大径部８の後部に係合段部９が形成されており、当該係合段部の後部外周に後端に鍔１０を有する係合解除用リング１１が遊嵌されている。
The metal fitting 2 has a large-diameter portion 8 formed on the outer periphery of the front end portion, an engagement step portion 9 formed on the rear portion of the large-diameter portion 8, and a rear end on the rear portion outer periphery of the engagement step portion. A disengagement ring 11 having a
また前記受け金具３は、先端部に前記差し金具２の先端部を受け入れる受け部１２を有しており、その受け部１２の内周には、受け金具３の先端方向に向かってテーパー面１３を有し且つ、前記差し金具２の係合段部９に係合離脱可能の係合爪１４が設けられ、当該係合爪１４はばね手段１５により内方に付勢されている。なお１６はパッキンであり、１７は緩衝ゴムである。 The receiving metal 3 has a receiving part 12 for receiving the front end of the fitting 2 at the front end. A tapered surface 13 is formed on the inner periphery of the receiving part 12 toward the front end of the receiving metal 3. And an engaging claw 14 that can be engaged and disengaged is provided at the engaging step portion 9 of the metal fitting 2, and the engaging claw 14 is urged inward by a spring means 15. In addition, 16 is a packing and 17 is a buffer rubber.
而して前記差し金具２の先端部を受け金具３の受け部１２内に押し込むと、大径部８の先端が係合爪１４のテーパー面１３に当接し、係合爪１４をばね手段１５の弾力に抗して外方に押し拡げつつ侵入し、大径部８が係合爪１４を通り抜けると、係合爪１４がばね手段１５の弾力により内方に突出して係合段部９に係合し、図１（ｂ）に示すように差し金具２と受け金具３とが結合される。このときパッキン１６が大径部８の外面に圧接して、両金具２、３を水密にシールする。
Thus, when the distal end of the metal fitting 2 is pushed into the receiving portion 12 of the metal fitting 3, the distal end of the large diameter portion 8 comes into contact with the tapered surface 13 of the engagement claw 14, and the engagement claw 14 is moved to the spring means 15. When the large-diameter portion 8 passes through the engaging claw 14 while pushing outwardly against the elasticity of the spring, the engaging claw 14 protrudes inward by the elasticity of the spring means 15 and enters the engaging step portion 9. As shown in FIG. 1B, the metal fitting 2 and the metal fitting 3 are coupled. At this time, the
またこの状態で前記係合解除用リング１１を差し金具２の先端方向に摺動させ、受け金具３の受け部１２の先端から押し込むことにより、係合解除用リング１１の先端が前記係合爪１４をばね手段１５の弾力に抗して外方に偏倚させ、係合段部９との係合を解除して差し金具２と受け金具３との結合を解除し得るようになっている。 In this state, the disengagement ring 11 is slid in the direction of the distal end of the metal fitting 2 and pushed from the distal end of the receiving portion 12 of the metal fitting 3 so that the distal end of the engagement release ring 11 is moved to the engagement claw. 14 is biased outwardly against the elastic force of the spring means 15, and the engagement with the engaging step portion 9 is released, so that the coupling between the metal fitting 2 and the receiving metal 3 can be released.
ところで差し金具２と受け金具３とを結合する際には、ホース１に結合された差し金具２を地面に置いて、ホース結合筒部４の後部のホース１を口巻き布６の外側から足で踏むことにより差し金具２の先端を上向きにし、そこに上方から受け金具３を差込むことにより差し金具２と受け金具３とを結合することが行われている。
By the way, when joining the metal fitting 2 and the metal fitting 3, the metal fitting 2 coupled to the hose 1 is placed on the ground, and the hose 1 at the rear of the hose coupling cylinder 4 is attached to the foot from the outside of the
このとき内方に付勢された係合爪１４を、差し金具２の大径部８の先端で押し拡げながら挿入するのであるが、ばね手段１５により係合爪１４を内方に付勢する力と、それに加えて大径部８の先端が係合爪１４のテーパー面１３に沿って摺動する摩擦が結合の抵抗力として作用し、結合のためには相当の力を要する。 At this time, the engaging claw 14 urged inward is inserted while being expanded at the tip of the large-diameter portion 8 of the metal fitting 2, but the engaging claw 14 is urged inward by the spring means 15. In addition to this, friction in which the tip of the large-diameter portion 8 slides along the tapered surface 13 of the engaging claw 14 acts as a resistance of the coupling, and a considerable force is required for the coupling.
図４はその状態を示すものであって、実線で示すように大径部８の先端外周角１８が係合爪１４のテーパー面１３に当接した状態から、鎖線で示すように大径部８の先端外周角１８がテーパー面１３の内端に至るまで、差し金具２を距離ａだけ押し進める間に、係合爪１４を距離ｂだけ押し拡げなければならないこととなり、差し金具２を単位距離進める際の仕事量が大きく、結合に大きな力を要するのである。 FIG. 4 shows this state. From the state where the tip outer peripheral angle 18 of the large-diameter portion 8 is in contact with the tapered surface 13 of the engaging claw 14 as shown by the solid line, the large-diameter portion as shown by the chain line is shown. While the front end outer peripheral angle 18 reaches the inner end of the tapered surface 13, the engaging claw 14 must be pushed and expanded by the distance b while the insertion bracket 2 is pushed by the distance a. The amount of work to proceed is large and requires a great deal of force to join.
また二部材の結合を容易ならしめるための手段として、大径部８の先端外周角１８にテーパーをつけることが考えられる。図５は大径部８の先端外周に係合爪１４のテーパー面１３に等しいテーパー１９を形成した場合を示すものであるが、この場合においても係合爪１４を大径部８の外周まで距離ｂだけ押し拡げるに要する差し金具２の挿入長さｃは、図４の場合とほとんど変わらず、結合力を軽減するには至らない。 Further, as a means for facilitating the joining of the two members, it is conceivable to taper the tip outer peripheral angle 18 of the large diameter portion 8. FIG. 5 shows a case where a taper 19 equal to the taper surface 13 of the engaging claw 14 is formed on the outer periphery of the tip of the large diameter portion 8. In this case also, the engaging claw 14 is extended to the outer periphery of the large diameter portion 8. The insertion length c of the metal fitting 2 required for expanding the distance b is almost the same as in the case of FIG. 4 and does not reduce the coupling force.
また係合爪１４のテーパー面１３の角度を緩やかにすることにより結合力を軽減することも考えられるが、この場合には係合爪１４の長さを長くする必要がある。前述のように三鉤式金具は互換性を有するものとして汎用されているのであるが、係合爪１４の長さが異ることにより互換性が失われる恐れが生じる。
本発明はかかる事情に鑑みなされたものであって、従来の三鉤式金具と完全に互換性を維持しつつ、差し金具２と受け金具３との結合力を軽減し、小さい力で容易に結合できるようにすることを目的とするものである。 The present invention has been made in view of such circumstances, and while maintaining complete compatibility with the conventional three-piece metal fitting, the coupling force between the metal fitting 2 and the metal fitting 3 is reduced, and can be easily performed with a small force. It is intended to be able to combine.
而して本発明は、差し金具と受け金具とよりなり、前記差し金具が基部にホース結合筒部と先端部外周に大径部を有し、その大径部の後部に係合段部を形成した筒体であって、前記係合段部の後方外周に係合解除用リングが遊嵌されており、前記受け金具が基部にホース結合筒部と先端部に前記差し金具の先端部を受け入れる受け部とを有する筒体であって、その受け部内周に受け金具の先端方向に向かってテーパー面を有し、且つ前記係合段部に係合離脱可能の係合爪を内方に付勢して設け、前記係合解除用リングを受け部先端から押し込むことにより前記係合爪を付勢に抗して外方に偏倚させ、係合段部との係合を解除するようにしたホース接続金具において、前記差し金具における大径部の先端外周に、前記係合爪のテーパー面よりも傾斜が緩やかなテーパー面を形成したことを特徴とするものである。 Thus, the present invention comprises a metal fitting and a receiving metal fitting, wherein the metal fitting has a hose coupling cylinder part at the base and a large diameter part at the outer periphery of the tip part, and an engagement step part at the rear part of the large diameter part. An engagement release ring is loosely fitted on a rear outer periphery of the engagement step portion, and the receiving metal fitting has a hose coupling cylinder portion at a base portion and a distal end portion of the insertion fitting at a distal end portion. A cylindrical body having a receiving portion that has a tapered surface on the inner periphery of the receiving portion toward the distal end of the receiving metal fitting, and an engaging claw that is detachable from the engaging step portion The engagement claw is biased outwardly by pushing the engagement release ring from the distal end of the receiving portion so that the engagement claw is biased outwardly and the engagement with the engagement step portion is released. In the hose connection fitting, the outer periphery of the tip of the large-diameter portion of the insertion fitting is more than the tapered surface of the engaging claw. It is characterized in that the oblique formed a gentle tapered surface.
本発明によれば、係合爪１４を差し金具２の大径部８の外周にまで押し拡げるに要する差し金具２の挿入長さが大きくなり、差し金具２を単位距離進める際の仕事量が小さくなり、小さい力で結合することができるのである。 According to the present invention, the insertion length of the metal fitting 2 required to expand the engagement claw 14 to the outer periphery of the large-diameter portion 8 of the metal fitting 2 is increased, and the work amount when the metal fitting 2 is advanced by a unit distance is increased. It becomes smaller and can be joined with less force.
図２及び図３は本発明の金具の主要部を示すものであって、前記差し金具２の大径部８の先端外周に、前記係合爪１４のテーパー面１３よりも傾斜が緩やかなテーパー面２０が形成されている。三鉤式金具の係合爪１４のテーパー面１３の角度ｅは通常約２５°であるので、テーパー面２０の角度ｆは、１０〜２０°が適当である。 2 and 3 show the main part of the metal fitting according to the present invention, and a taper is provided on the outer periphery of the distal end of the large-diameter portion 8 of the metal fitting 2 with a gentler slope than the taper surface 13 of the engaging claw 14. A surface 20 is formed. Since the angle e of the tapered surface 13 of the engaging claw 14 of the three-piece metal fitting is usually about 25 °, the angle f of the tapered surface 20 is suitably 10 to 20 °.
本発明によれば、大径部８にテーパー面２０が形成されており、そのテーパー面２０の角度ｆが係合爪１４のテーパー面１３の角度ｅよりも緩やかであるので、差し金具２を受け金具３に差込んだとき、テーパー面２０の先端は図３の実線で示すように、係合爪１４のテーパー面１３の内端付近に当接する。 According to the present invention, the taper surface 20 is formed on the large diameter portion 8, and the angle f of the taper surface 20 is gentler than the angle e of the taper surface 13 of the engaging claw 14, so When inserted into the catch 3, the tip of the tapered surface 20 comes into contact with the vicinity of the inner end of the tapered surface 13 of the engaging claw 14 as shown by the solid line in FIG. 3.
従って差し金具２をわずかに押し込むことにより、テーパー面１３の内端がテーパー面２０に当接し、その後係合爪１４がテーパー面２０に沿って滑りながらばね手段１５の弾力に抗して押し拡げられることになる。 Therefore, by slightly pushing in the fitting 2, the inner end of the taper surface 13 abuts on the taper surface 20, and then the engaging claw 14 slides along the taper surface 20 and expands against the elasticity of the spring means 15. Will be.
このときテーパー面２０の角度ｆが小さいので、図３に鎖線で示すように係合爪１４を大径部８の外周にまで距離ｂだけ押し拡げるに要する差し金具２の挿入距離ｄは、図４に示す従来の金具に比べて大幅に大きくなる。 At this time, since the angle f of the tapered surface 20 is small, the insertion distance d of the metal fitting 2 required to push the engaging claw 14 to the outer periphery of the large diameter portion 8 by a distance b as shown by a chain line in FIG. Compared with the conventional metal fitting shown in FIG.
すなわち、差し金具２を単位距離押し進める際の、ばね手段１５の弾力に抗して係合爪１４を押し拡げる仕事量が小さくなり、より小さい力で差し金具２を押し進め、受け金具３と結合することができるのである。 That is, the amount of work for expanding the engaging claws 14 against the elasticity of the spring means 15 when pushing the fitting 2 by a unit distance is reduced, and the fitting 2 is pushed with a smaller force to be coupled to the receiving fitting 3. It can be done.
またこのとき、テーパー面２０の角度が小さいので、図２に示すようにパッキン１６は差し金具２の大径部８からテーパー面２０にかけて圧接することができ、水密性を確保することができる。
At this time, since the angle of the taper surface 20 is small, the
係合爪１４のテーパー面１３の角度ｅが２５°の受け金具３に対して、従来の大径部８にテーパー面２０がない差し金具２を結合したときに、両金具の結合に要する力は、平均約４．７kgであった。 The force required to join the two metal fittings when the conventional metal fitting 2 having no tapered surface 20 in the large-diameter portion 8 is coupled to the metal fitting 3 having an angle e of the tapered surface 13 of the engaging claw 14 of 25 °. Averaged about 4.7 kg.
また同じ受け金具３に対して、大径部８の先端に２５°のテーパー１９をつけた差し金具２を結合したときには、その両金具の結合に要する力は約４．３kgであって、結合力を軽減する効果は小さかった。 When the fitting 2 having a taper 19 of 25 ° is joined to the same metal fitting 3 at the tip of the large-diameter portion 8, the force required to join the two fittings is about 4.3 kg. The effect of reducing power was small.
これに対し、同じ受け金具３に対して、大径部８の先端部に係合爪１４のテーパー面１３よりも小さい１４°のテーパー面２０を形成した差し金具２を結合した場合には、結合に要する力は約３．５kgであって、本発明により両金具の結合に要する力は大幅に軽減された。 On the other hand, when the insertion fitting 2 having a tapered surface 20 of 14 ° smaller than the tapered surface 13 of the engaging claw 14 is coupled to the same receiving metal 3 at the tip of the large diameter portion 8, The force required for joining was about 3.5 kg, and the force required for joining both metal fittings was greatly reduced by the present invention.
また本発明においては、受け金具３は従来の三鉤式金具をそのまま使用することができ、且つ差し金具２においても、大径部８の長さや係合段部９の高さを変更する必要がないので、一般に汎用されている三鉤式金具と完全に互換性を有しており、火災現場での消火活動において、混用して何ら問題は生じない。 In the present invention, a conventional three-piece metal fitting can be used as it is for the metal fitting 3, and the length of the large diameter portion 8 and the height of the engagement step portion 9 also need to be changed in the metal fitting 2. Therefore, it is completely compatible with the generally used three-piece metal fittings, and it does not cause any problems when mixed in fire fighting activities at the fire site.
１ ホース
２ 差し金具
３ 受け金具
４ ホース結合筒部
８ 大径部
９ 係合段部
１１ 係合解除用リング
１２ 受け部
１３ テーパー面
１４ 係合爪
１５ ばね手段
１６ パッキン
２０ テーパー面
DESCRIPTION OF SYMBOLS 1 Hose 2 Insert metal fitting 3 Receiving metal fitting 4 Hose coupling cylinder part 8 Large diameter part 9 Engagement step part 11 Engagement release ring 12 Receiving part 13 Tapered surface 14 Engagement claw 15 Spring means 16 Packing 20 Tapered surface
Claims (1)
It consists of a metal fitting (2) and a metal fitting (3), and the metal fitting (2) has a hose coupling cylinder part (4) at the base and a large diameter part (8) at the outer periphery of the tip part, and the large diameter part. (8) A cylindrical body in which an engagement step portion (9) is formed at the rear portion, and a disengagement ring (11) is loosely fitted to a rear outer periphery of the engagement step portion (9), The receiving metal fitting (3) is a cylinder having a hose coupling cylinder (4) at the base and a receiving part (12) for receiving the tip of the fitting (2) at the tip, and the receiving part (12). An engagement claw (14) having a tapered surface (13) toward the distal end of the receiving metal fitting (3) on the inner periphery and detachable from the engagement step (9) is inwardly biased. The engagement release ring (11) is pushed from the tip of the receiving portion (12) to bias the engagement claw (14) outward against the bias, In the hose connection fitting that is disengaged from the stepped portion (9), the taper surface (13) of the engagement claw (14) is provided on the outer periphery of the distal end of the large diameter portion (8) of the fitting (2). Hose connection fittings characterized in that a tapered surface (20) is formed with a gentler slope than
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006006609A JP4160600B2 (en) | 2006-01-13 | 2006-01-13 | Hose connection bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006006609A JP4160600B2 (en) | 2006-01-13 | 2006-01-13 | Hose connection bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007187271A JP2007187271A (en) | 2007-07-26 |
| JP4160600B2 true JP4160600B2 (en) | 2008-10-01 |
Family
ID=38342574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006006609A Active JP4160600B2 (en) | 2006-01-13 | 2006-01-13 | Hose connection bracket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4160600B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009207704A (en) * | 2008-03-05 | 2009-09-17 | Ashimori Ind Co Ltd | Metal joint for hose |
| JP5393513B2 (en) * | 2010-02-04 | 2014-01-22 | 寧波瀛震机械部件有限公司 | Hose fittings |
| JP5534954B2 (en) * | 2010-06-02 | 2014-07-02 | 株式会社丸共ユニオン | Fire hose fittings |
| JP5718159B2 (en) * | 2011-05-31 | 2015-05-13 | 株式会社丸共ユニオン | Firefighting fittings |
| JP6974858B2 (en) * | 2019-01-24 | 2021-12-01 | 株式会社山田製作所 | Receiving metal fittings for plug-in joints |
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2006
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