JPH0314992A - Hose with different diameter for agricultural motor-driven atomizer and hose joint - Google Patents
Hose with different diameter for agricultural motor-driven atomizer and hose jointInfo
- Publication number
- JPH0314992A JPH0314992A JP1145979A JP14597989A JPH0314992A JP H0314992 A JPH0314992 A JP H0314992A JP 1145979 A JP1145979 A JP 1145979A JP 14597989 A JP14597989 A JP 14597989A JP H0314992 A JPH0314992 A JP H0314992A
- Authority
- JP
- Japan
- Prior art keywords
- hose
- peripheral surface
- diameter
- joint body
- press
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 41
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Catching Or Destruction (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、農業動力噴霧機に使用される異径ホース、及
びホース継手に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a different diameter hose and a hose joint used in an agricultural power sprayer.
なお、本明細書において、例えば、圧入筒の内周面の最
小径の部分と、ホースの外径とが「対応している」とは
、圧入筒の内周面の最小径部分の内径と、ホースの外径
とが等しいか、或いはほぼ等しいことを意味する。In addition, in this specification, for example, when the minimum diameter part of the inner peripheral surface of the press-fit tube and the outer diameter of the hose "correspond", it means that the inner diameter of the minimum diameter part of the inner peripheral surface of the press-fit tube corresponds to , means that the outer diameter of the hose is equal or approximately equal.
農業動力噴霧機に使用されているホースの長さは、１０
０ｍ以上に及ぶものがあり、このホースを作物の畦間に
通して引張って使用している。The length of the hose used in agricultural power sprayers is 10
Some hoses are longer than 0m and are used by pulling them through the rows of crops.
このため、ホースをほぼ全部巻き出して使用する程に、
畦の長さが長い場合には、ホースの引張り力は相当に大
きくなり、このようなホースを引張りながら行う薬液の
噴霧作業は、作業者にとって極めて重労働であった．
ホースの引張り力を小さくするには、内径の小さなホー
スを使用すればよいのであるが、噴霧作業の能率をその
まま維持するためには、単位時間当りの薬液の噴霧量を
そのままにしておく必要がある．ここで、内径の小さな
ホースを使用し、ポンプ圧を一定とした場合には、薬液
流通時におけるホースの圧力損失が、これよりも内径の
大きなホースを使用した場合に比較して大きくなるので
、噴霧圧力が低下する．このため、薬液の流量が減少す
ると共に、噴霧圧も低下し、薬液の霧化が悪くなって、
噴霧効果が低下する。For this reason, to the extent that the hose is unrolled almost completely,
When the length of the ridge is long, the pulling force on the hose becomes considerably large, and spraying chemicals while pulling on such a hose is extremely hard work for the worker. In order to reduce the tensile force of the hose, it is possible to use a hose with a small inner diameter, but in order to maintain the efficiency of spraying work, it is necessary to maintain the same amount of chemical spray per unit time. be. Here, if a hose with a small inner diameter is used and the pump pressure is kept constant, the pressure loss of the hose during the flow of the chemical will be greater than when a hose with a larger inner diameter is used. Spray pressure decreases. For this reason, the flow rate of the chemical solution decreases, and the spray pressure also decreases, resulting in poor atomization of the chemical solution.
Spray effectiveness decreases.
従って、噴霧量と噴霧圧の双方を維持したままで、内径
の小さなホースを使用する場合には、ホースの圧力損失
が大きくなった分だけ、ポンプ圧を高くしなければなら
ないことになる。しかし、既存の動力噴霧機では、構造
上ポンプ圧の上限があり、これをそれ程高くすることは
できない。Therefore, if a hose with a small inner diameter is used while maintaining both the spray amount and spray pressure, the pump pressure must be increased by the amount that the pressure loss of the hose is increased. However, existing power sprayers have an upper limit on pump pressure due to their structure, and cannot be increased that high.
そこで、本発明者は、従来使用しているホースを内径の
小さなホースに代えて、ホース全体の内径を小さくする
のではなく、使用頻度の高い薬岐の噴出側のホースのみ
を、内径の小さなホースに代え、ポンプ側のホースは従
来の内径のままのホースを使用すれば、作業時における
ホースの引張り力が軽減されることを発案した。即ち、
内径の異なる二本のホースを途中でホース継手を介して
接続した異径ホースを使用すれば、ポンプ圧をそれ程高
めることなく、噴霧量と噴霧圧の双方を維持したままで
、ホースの引張り力を軽減させることができるというこ
とである。Therefore, instead of replacing the conventionally used hose with a hose with a smaller inner diameter and reducing the inner diameter of the entire hose, the inventor of the present invention replaced only the hose on the spout side of the frequently used medicinal branch with a hose with a smaller inner diameter. We proposed that instead of using a hose on the pump side, if we use a hose with the same inner diameter as before, the pulling force on the hose during work can be reduced. That is,
By using two hoses with different inner diameters connected through a hose joint in the middle, you can reduce the tension of the hoses while maintaining both the spray amount and spray pressure without increasing the pump pressure. This means that it is possible to reduce the
一方、最近においては、農業動力噴霧機によるホースの
巻取作業を軽減させるために、ホースを自動的に整列さ
せて巻取ることのできる自動整列巻取装置を備えた動力
噴霧機が使用されるに至っている．この自動整列巻取装
置は、巻取られるホースを左右に交互にトラバースさせ
ながら巻取ドラムに巻取る構成であり、巻取られるホー
スを巻取ドラムの所定の位置にスムーズに導くためのホ
ース案内具が設けられている。On the other hand, recently, in order to reduce the work of winding up hoses using agricultural power sprayers, power sprayers equipped with automatic alignment and winding devices that can automatically align and wind up hoses have been used. It has reached this point. This automatic aligning and winding device has a configuration in which the hose to be wound is wound around a winding drum while traversing the hose alternately left and right, and a hose guide is used to smoothly guide the hose to be wound to a predetermined position on the winding drum. Equipment is provided.
このため、上記したように内径の異なる二本のホースを
一般のホース継手を介してただ単に接続したのでは、こ
のホース継手の長さが長いために、この部分のホースの
最小わん曲半径が大きくなり、前記自動整列巻取装置の
ホース案内具の部分をスムーズに通過させることができ
ない。For this reason, if two hoses with different inner diameters are simply connected via a general hose joint as described above, the minimum bending radius of the hose in this part will be limited due to the long length of this hose joint. It becomes so large that it cannot smoothly pass through the hose guide part of the automatic alignment and winding device.
農業動力噴霧機用ホースの接続に使用されている従来の
ホース継手としては、第８図及び第９図に示されるよう
なものがある。このホース継手４１は、円筒状の継手本
体４２の外周面に、軸方向に沿ってテーパーとなってい
る複数の環状***部４３が軸方向に沿って所定の間隔を
おいて突設された構成である。そして、継手本体４２に
ホース４４の端部を嵌め込み、嵌め込まれたホース４４
の外周に更に軟金属環４５を嵌め込み、この軟金属環４
５をかしめて、ホース４４が抜けないようにしている。Conventional hose joints used to connect hoses for agricultural power sprayers include those shown in FIGS. 8 and 9. This hose joint 41 has a configuration in which a plurality of annular protuberances 43 that are tapered along the axial direction protrude from the outer peripheral surface of a cylindrical joint main body 42 at predetermined intervals along the axial direction. It is. Then, the end of the hose 44 is fitted into the joint body 42, and the fitted hose 44
A soft metal ring 45 is further fitted on the outer periphery of the soft metal ring 4.
5 is caulked to prevent the hose 44 from coming off.
このような構造のホース継手４１は、所定の接続強度を
得るためには、継手本体４２の継手部の長さ（ｇ゛）を
長くしなければならないと共に、軟金属環４５のかしめ
作業が面倒であった．〔発明が解決しようとする課題〕
本発明は、上記したような事情を背景にしてなされたも
のであり、主として内径の異なる二本のホースを接続す
るためのホース継手において、接続部分の長さが短くて
、しかも大きな接続強度が得られる構造のホース継手を
提供することを課題としてなされたものである。In the hose joint 41 having such a structure, in order to obtain a predetermined connection strength, the length (g) of the joint part of the joint body 42 must be increased, and the crimping work of the soft metal ring 45 is troublesome. Met. [Problems to be Solved by the Invention] The present invention has been made against the background of the above-mentioned circumstances, and mainly relates to a hose joint for connecting two hoses with different inner diameters. The objective of this invention was to provide a hose joint that has a short length and has a structure that provides high connection strength.
本発明に係わるホース継手は、円筒体の軸方向の中央部
に鍔部が大きく突設されていると共に、この鍔部の両側
がそれぞれホース嵌め込み部となっている継手本体と；
該継手本体の鍔部の外径と対応する内径を有する円筒体
の内周面に雌ねじが形成され、継手本体の鍔部の外側に
該継手本体と同心となって嵌め込まれて固定される外筒
と；咳外筒の内径と対応する外径を有する円筒体の外周
面に雄ねしが形成されていると共に、その内周面の少な
くとも一部がテーパー内周面となっていると共に、内周
面の最小径の部分がホースの外径と対応していて、前記
外筒の内側にねじ込まれる一対の圧入筒と；多数の小鋼
球と；から或るものである。The hose joint according to the present invention includes a joint body in which a flange is largely protruded from the center in the axial direction of a cylindrical body, and each side of the flange is a hose fitting part;
A female thread is formed on the inner circumferential surface of a cylindrical body having an inner diameter corresponding to the outer diameter of the flange of the joint body, and an external thread is fitted and fixed to the outside of the flange of the joint body concentrically with the joint body. Cylinder: A male tap is formed on the outer peripheral surface of a cylindrical body having an outer diameter corresponding to the inner diameter of the cough outer cylinder, and at least a part of the inner peripheral surface thereof is a tapered inner peripheral surface, The hose includes a pair of press-fit tubes whose smallest diameter portion of the inner circumferential surface corresponds to the outer diameter of the hose, and which are screwed into the inside of the outer tube; and a number of small steel balls.
〔発明の作用］
継手本体の鍔部の両側に設けられた各ホース嵌め込み部
に接続すべき各ホースの端部をそれぞれ嵌め込んだ後に
、各ホースの端部を覆うようにして継手本体の鍔部の外
側に外筒を該継手本体と同心にして嵌め込んで固定する
。次に、各ホースの外周面と外筒の内周面との間に形成
される環状の隙間に多数の小鋼球をそれぞれ封入して、
外筒の両端部からそれぞれ圧入筒をねし込むと、圧入筒
の最小径の部分がホースの外径と対応しているために、
小鋼球が外部に漏れ出ることなく、圧入筒のテーパー内
周面とホースの外周面との間に多数の小鋼球が封し込ま
れて、該圧入筒のテーパー内周面の楔作用によって小鋼
球がホースの外周面に強く押し付けられ、これによりホ
ースが弾性変形されて、継手本体のホース嵌め込み部に
ホースが強く押し付けられる。[Operation of the invention] After fitting the ends of each hose to be connected to the respective hose fitting parts provided on both sides of the flange of the joint body, the flange of the joint body is fitted so as to cover the ends of each hose. An outer cylinder is fitted and fixed on the outside of the joint body concentrically with the joint body. Next, a large number of small steel balls are each enclosed in an annular gap formed between the outer peripheral surface of each hose and the inner peripheral surface of the outer cylinder.
When the press-fit tubes are screwed in from both ends of the outer tube, the smallest diameter part of the press-fit tube corresponds to the outside diameter of the hose, so
A large number of small steel balls are sealed between the tapered inner circumferential surface of the press-fit tube and the outer circumferential surface of the hose without leaking to the outside, thereby creating a wedge action on the tapered inner circumferential surface of the press-fit tube. The small steel ball is strongly pressed against the outer circumferential surface of the hose, thereby elastically deforming the hose, and strongly pressing the hose against the hose fitting portion of the joint body.
このように、圧入筒のテーパー内周面と、継手本体のホ
ース嵌め込み部に嵌め込まれたホースの外周面との間に
多数の小鋼球を封じ込め、圧入筒のテーパー内周面の楔
作用によって、小鋼球をホースの外周面に大きな力で押
し付ける構或であるので、ホース継手の長さを短くして
も、大きな接続強度を確保できると共に、圧入筒のねし
込み量の調整によって接続強度を調整できる。In this way, a large number of small steel balls are sealed between the tapered inner circumferential surface of the press-fit tube and the outer circumferential surface of the hose fitted into the hose fitting part of the joint body, and the wedge action of the tapered inner circumferential surface of the press-fit tube Since the small steel ball is pressed against the outer circumferential surface of the hose with a large force, a large connection strength can be ensured even if the length of the hose joint is shortened, and the connection can be made by adjusting the amount of push-in of the press-fit tube. You can adjust the intensity.
以下、第１図ないし第６図を参照にして、内径の異なる
二本のホースＨ＋．Ｈｚ （ホースＨ１の内径及び外
径は、いずれもホースＨアのそれよりも大きい）の接続
を行うためのホース継手Ｃについて説明する。Hereinafter, with reference to FIGS. 1 to 6, two hoses H+. Hz (both the inner and outer diameters of the hose H1 are larger than those of the hose H1).
このホース継手Ｃは、継手本体Ａと、外筒Ｂと、一対の
圧入筒Ｄ＋．Ｄｚと、多数の小鋼球Ｅとで構成される。This hose joint C includes a joint body A, an outer cylinder B, and a pair of press-fit cylinders D+. Dz and a large number of small steel balls E.
継手本体Ａは、円筒体の中央部に大きな円盤状の鍔部１
が突設され、この鍔部ｌの両側がそれぞれホースＨ，．
Ｈ２を嵌め込むためのホース嵌め込み部２ａ，２ｂとな
ったものである。鍔部Ｉの外周面には雄ねし３が形威さ
れている。各ホース嵌め込み部２ａ，２ｂの外径は異な
っており、それぞれの外周面には、軸方向に沿ってテー
パーとなっていて、嵌め込まれたホースＨ＋．Ｈｚの抜
け止めを行うための環状***部４ａ，４ｂが軸方向に沿
って所定の間隔をおいて突設されている。The joint body A has a large disk-shaped flange 1 in the center of the cylindrical body.
are provided protrudingly, and both sides of this collar l are provided with hoses H, .
These are hose fitting parts 2a and 2b for fitting H2. A male stud 3 is formed on the outer peripheral surface of the flange I. The outer diameters of the hose fitting portions 2a and 2b are different, and the outer circumferential surface of each hose is tapered along the axial direction. Annular protuberances 4a and 4b for preventing the Hz from coming off are provided in a protruding manner at a predetermined interval along the axial direction.
外筒Ｂは、円筒状を呈していて、その内周面には段差部
５が設けられ、この段差部５を境にして、その両側の内
径が異なっていて、内径の大きな内周面の両端部にそれ
ぞれ雌ねし６ ａ．． ６ ａｚが形威されていると
共に、内径の小さな内周面の開口側に雌ねし６ｂが形成
されている．円筒状の外筒Ｂの外周面の一端部分には、
ねじ込みの際に工具を係合させるための平面状の係合部
７が設けられている．
一対の圧入筒Ｄ．，Ｄ！は、いずれも円筒状を呈してい
るが、その内径及び外径がいずれも異なり、圧入筒Ｄ，
の内径及び外径は、いずれも圧入筒Ｄｔのそれよりも大
きい．圧入筒Ｄ１の外径は、前記外筒Ｂの雌ねじ６ ａ
＋ ＋ ６ ａ ！が形成されている内周面の内径に
対応していて、その基端部には六角状の保合部８ａが設
けられ、その外周面には雄ねし９ａが設けられていると
共に、その内周面の大部分は、テーパー内周面１１ａと
なっている．このテーパー内周面１１ａは、圧入筒Ｄ１
の先端から基端に向かって漸次内径が小さくなるような
テパーになっている。また、圧入筒ＤＩの最小径の部分
の内径は、ホースＨ１の外径とほぼ等しくなっている．
また、圧入筒Ｄ８の外径は、前記外筒Ｂの雌ねじ６ｂが
形成されている内周面の内径に対応していて点のみが異
なり、他の構成は圧入筒Ｄ１と同一である．即ち、圧入
筒Ｄ２の基端部には六角ナント部８ｂが設けられ、その
外Ｊｉ［ｒには雄ねじ９ｂが設けられていると共に、そ
の内周面の大部分は、テーパー内周面１ｌｂとなってい
る。The outer cylinder B has a cylindrical shape, and a stepped portion 5 is provided on its inner peripheral surface, and the inner diameters on both sides of the stepped portion 5 are different, with the inner diameter of the inner peripheral surface having a larger inner diameter being different. Female thread 6 on each end a. ．． 6 az is formed, and a female thread 6b is formed on the opening side of the inner peripheral surface with a small inner diameter. At one end of the outer peripheral surface of the cylindrical outer cylinder B,
A planar engaging portion 7 is provided for engaging a tool during screwing. A pair of press-fit tubes D. ,D! Both have a cylindrical shape, but their inner and outer diameters are different, and the press-fit tubes D,
Both the inner and outer diameters of the press-fit tube Dt are larger than those of the press-fit tube Dt. The outer diameter of the press-fit cylinder D1 is the female thread 6a of the outer cylinder B.
+ + 6 a! A hexagonal retaining portion 8a is provided at the base end thereof, and a male thread 9a is provided on the outer peripheral surface of the retaining portion 8a. Most of the inner peripheral surface is a tapered inner peripheral surface 11a. This tapered inner circumferential surface 11a is a press-fit cylinder D1
It is tapered so that the inner diameter gradually decreases from the tip to the base. Further, the inner diameter of the minimum diameter portion of the press-fit tube DI is approximately equal to the outer diameter of the hose H1. Further, the outer diameter of the press-fit tube D8 corresponds to the inner diameter of the inner circumferential surface on which the female thread 6b of the outer tube B is formed, and the other configuration is the same as that of the press-fit tube D1. That is, a hexagonal Nantes portion 8b is provided at the base end of the press-fit tube D2, and a male thread 9b is provided on the outside Ji It has become.
次に、上記した構成のホース継手Ｃを使用して外径及び
内径の双方が異なる二本のホースＨＩ．Ｈｍを接続する
順序について説明する．
まず、第３図に示されるように、ホースＨ１の端部に圧
入筒Ｄ，を嵌め込んでおくと共に、ホースＨ２の端部に
圧入筒Ｄよ及び外筒Ｂを嵌め込んでおき、この状態にし
て各ホースＨＩ．Ｈｔの端部をそれぞれ継手本体八のホ
ース嵌め込み部２ａ２ｂに圧人して嵌め込む．この状態
では、各ホースＨ．Ｈｚの端面は、継手本体Ａの鍔部ｌ
の両側面に当接している。Next, using the hose joint C having the above-described configuration, two hoses HI. We will explain the order of connecting Hm. First, as shown in FIG. 3, the press-fit cylinder D is fitted into the end of the hose H1, and the press-fit cylinder D and the outer cylinder B are fitted into the end of the hose H2. and each hose HI. Press the ends of the Ht into the hose fitting portions 2a2b of the joint body 8 and fit them. In this state, each hose H. The end face of the Hz is the flange l of the joint body A.
is in contact with both sides of the
次に、第４図に示されるように、ホースＨ２の端部に嵌
め込まれている外筒Ｂを継手本体Ａの側に移動させて、
その内周面に形成されている雌ねじ６ａｚと、継手本体
八の鍔部１の外周面に形威されている雄ねじ３とを螺合
させると共に、外筒Ｂの内周面に形威されている段差部
５を、継手本体Ａの鍔部１の側面に当接させる．これで
、継手本体Ａに嵌め込まれている各ホースＨ＋．Ｈｚの
端部が外筒Ｂによって覆われた状態となって、継手本体
Ａに外筒Ｂが同心となって固定され、継手本体Ａに嵌め
込まれている各ホースＨ＋．Ｈｚの外周面と、外筒Ｂの
内周面との間に環状の隙間１２ａ，１２ｂが形戊される
。Next, as shown in FIG. 4, move the outer cylinder B fitted into the end of the hose H2 to the side of the joint body A,
The female thread 6az formed on the inner circumferential surface thereof is screwed together with the male thread 3 formed on the outer circumferential surface of the flange 1 of the joint body 8, and the male thread 3 formed on the inner circumferential surface of the outer cylinder B is screwed together. The stepped portion 5 is brought into contact with the side surface of the flange portion 1 of the joint body A. Now each hose H+ fitted into the joint body A. Hz is covered by the outer cylinder B, and the outer cylinder B is concentrically fixed to the joint body A, and each hose H+. Annular gaps 12a and 12b are formed between the outer peripheral surface of the Hz and the inner peripheral surface of the outer cylinder B.
そして、第５図に示されるように、上記した環状の隙間
１２ａ，１２ｂに所定量の小鋼球Ｅを封入して、各圧入
筒Ｄ＋，Ｄｉを外筒Ｂの内周面にねじ込むと、各圧入筒
Ｄ，．Ｄ，の最小径部分の内径が、それぞれホースＨＩ
，Ｈｚの外径とほぼ等しくなっているので、小鋼球Ｅが
外部に漏れ出ることなく、圧入筒Ｄｌ．Ｄ２のテーパー
内周面１１ａ，１ｌｂと各ホースＨ＋．Ｈｔの外周面と
の間に多数の小鋼球Ｅが封し込まれ、圧入筒Ｄ＋，Ｄｚ
のテバー内周面１１ａ，ｌｌｂの楔作用によって、小鋼
球Ｅが各ホースＨ，，Ｈ．の外周面に強く押し付けられ
る．これにより、第６図に示されるように、ホースＨｌ
，Ｈ！が弾性変形されて、各ホース嵌め込み部２ａ，２
ｂの外周面に強力に押し付けられ、内径及び外径の双方
が異なる二本のホースＨ１．Ｈ！がホース継手Ｃを介し
て接続される．
本発明に係わるホース継手Ｃは、上記したような構成で
あるので、継手本体Ａに設けられる各ホース嵌め込み部
’ｌａ， ２ｂの長さを短くしても、ホースＨ＋，Ｈ
ｚの接続に必要な強度を確保でき、従って、ホース継手
Ｃの全長（Ｌ）〔第６図参照〕を短くすることができる
．また、圧入筒Ｄ．．Ｄ！のねじ込み量の調整によって
、ホースＨ．，Ｈ！の外周面に対する小鋼球Ｅの押し付
け力を変化させることができるので、ホースＨ，，Ｈ．
の接統強度の調整が行える。Then, as shown in FIG. 5, when a predetermined amount of small steel balls E are sealed in the annular gaps 12a and 12b, and the press-fit tubes D+ and Di are screwed into the inner peripheral surface of the outer tube B, Each press-fit cylinder D,. The inner diameter of the minimum diameter part of D, respectively, is the hose HI.
, Hz, so the small steel balls E do not leak outside and the press-fit tube Dl. D2's tapered inner peripheral surface 11a, 1lb and each hose H+. A large number of small steel balls E are sealed between the outer peripheral surface of Ht and the press-fit tubes D+, Dz
Due to the wedge action of the inner circumferential surfaces 11a and 11b of the Tever, the small steel balls E are attached to each hose H, H. It is strongly pressed against the outer circumferential surface of the As a result, as shown in FIG.
,H! is elastically deformed, and each hose fitting part 2a, 2
Two hoses H1.b are strongly pressed against the outer peripheral surface of H1. H! is connected via hose joint C. Since the hose joint C according to the present invention has the above-described configuration, even if the length of each hose fitting part 'la, 2b provided in the joint body A is shortened, the hoses H+, H
The strength necessary for the connection of z can be ensured, and therefore the total length (L) of the hose joint C (see Fig. 6) can be shortened. In addition, the press-fit cylinder D. ．． D! By adjusting the screwing amount of the hose H. ,H! Since the pressing force of the small steel ball E against the outer peripheral surface of the hoses H, , H.
The welding strength can be adjusted.
また、上記実施例は、内径及び外径の双方が異なる二本
のホースを接続するためのホース継手であるが、継手本
体の両側部に設けられれるホース嵌め込み部の外径が等
しい構造のホース継手によって同径のホースの接続を行
うこともできる．更に、第７図に示されるように、継手
本体Ａ゛に設けられた鍔部１の一方側にホース嵌め込み
部ｌ３が設けられ、鍔部１の他方側に他の器具類に接続
されるボルト等の接続部１４が設けられ、このホース嵌
め込み部１３に、外筒Ｂ゜ と、圧入筒Ｄ“ と、小鋼
球Ｅとを使用して、上記と同様にしてホースＨ゜を接続
する構成のホース継手Ｃ゜ も本発明の技術的範囲に属
するものである，また、上記したようなホース継手Ｃに
よって内径の異なる二本のホースを接続して農業動力噴
霧機用ホースとして使用し、内径の大きな従来から使用
されているホースをポンプ側に接続すると共に、内径の
小さなホースを薬液の噴出側に使用すると、「従来の技
術」の項目で説明したように、ポンプ圧をそれ程高める
ことなく、噴霧量と噴霧圧の双方を維持したままで、ホ
ースの引張り力を軽減させることができる．
〔発明の効果〕
（１）内径の異なるホースがホース継手を介して接続さ
れていて、内径の小さなホースが薬液の噴出側となって
いる本発明に係わる農業動力噴霧機用異径ホースを使用
すると、ポンプ圧をそれ程高めることなく、噴霧量と噴
霧圧の双方を維持したままで、ホースの引張り力を軽減
させることができるので、動力噴霧機を使用した薬液の
噴霧作業を改善することができる．
（２）本発明に係わるホース継手は、継手本体の外側に
鍔部を介して外筒を該継手本体と同心にして嵌め込んで
固定し、この外筒の内側にねじ込まれた圧入筒のテーパ
ー内周面と、継手本体のホース嵌め込み部に嵌め込まれ
たホースの外周面との間に多数の小鋼球を封し込め、圧
入筒のテーパー内周面の楔作用によって、小鋼球をホー
スの外周面に大きな力で押し付ける構或であるので、ホ
ース継手の長さを短くしても、大きな接続強度を確保で
きると共に、圧入筒のねじ込み量の調整によって接続強
度を調整できる。Furthermore, although the above embodiment is a hose joint for connecting two hoses with different inner diameters and outer diameters, the hose fittings provided on both sides of the joint body have the same outer diameter. It is also possible to connect hoses of the same diameter using joints. Furthermore, as shown in FIG. 7, a hose fitting part l3 is provided on one side of the flange 1 provided on the joint body A', and a bolt to be connected to other equipment is provided on the other side of the flange 1. A connecting part 14 is provided, and a hose H is connected to this hose fitting part 13 using an outer cylinder B, a press-fit cylinder D'', and a small steel ball E in the same manner as above. The hose joint C゜ also belongs to the technical scope of the present invention.In addition, two hoses with different inner diameters can be connected by the hose joint C as described above and used as a hose for an agricultural power sprayer. By connecting a traditionally used hose with a large diameter to the pump side and using a hose with a small inner diameter on the chemical jetting side, as explained in the ``Prior Art'' section, the pump pressure can be increased without increasing the pump pressure. , the tensile force on the hose can be reduced while maintaining both spray volume and spray pressure. [Effects of the Invention] (1) Using the different diameter hose for agricultural power sprayers according to the present invention, in which hoses with different inner diameters are connected via a hose joint, and the hose with the smaller inner diameter is on the side that sprays the chemical solution. This makes it possible to reduce the tensile force on the hose while maintaining both the spray volume and spray pressure without increasing the pump pressure, improving the spraying process of chemical liquids using a power sprayer. can. (2) In the hose joint according to the present invention, an outer cylinder is fitted and fixed concentrically with the joint body through a flange on the outside of the joint body, and a taper of a press-fit cylinder is screwed into the inside of the outer cylinder. A large number of small steel balls are sealed between the inner peripheral surface and the outer peripheral surface of the hose fitted into the hose fitting part of the fitting body, and the small steel balls are inserted into the hose by the wedge action of the tapered inner peripheral surface of the press-fit tube. Since the hose joint is pressed against the outer circumferential surface with a large force, a large connection strength can be ensured even if the length of the hose joint is shortened, and the connection strength can be adjusted by adjusting the screwing amount of the press-fit tube.
このため、本発明に係わるホース継手によって内径の異
なる二本のホースを接続した場合には、ホース継手の長
さが短いので、ホース継手によって接続された部分のホ
ースの最小わん曲半径が小さくなる．この結果、自動整
列巻取装置によってこの接続されたホースを巻取る場合
においても、ホースの継手部分が自動整列巻取装置に設
けられたホース案内具の部分を支障なく通過できる．Therefore, when two hoses with different inner diameters are connected using the hose joint according to the present invention, since the length of the hose joint is short, the minimum bend radius of the hose connected by the hose joint becomes small. ．． As a result, even when the connected hose is wound up by the automatic alignment and winding device, the joint portion of the hose can pass through the hose guide provided on the automatic alignment and winding device without any problem.
第１図ないし第７図は、本発明を説明するための図であ
って、第１図は、本発明に係わるホース継手Ｃの分解斜
視図、第２図は、同しく組付け斜視図、第３図ないし第
６図は、本発明に係わるホース継手Ｃによって内径及び
外径の双方が異なる二本のホースＨｉ．｝ｉｇを接続す
る順序を説明するための半断面図、第７図は、本発明に
係わる別のホース継手Ｃ゜の半断面図である．
第８図及び第９図は、従来のホース継手を説明するため
の図であって、第８図は、その斜視図、第９図は、同し
く断面図である。
本発明を構成している主要部分の符号の説明は以下の通
りである。
Ａ， Ａ’ ：継手本体 Ｂ， Ｂ’ ：外筒ｃ
． ｃ’ ：ホース継手
Ｄ．，Ｄ！，Ｄ″ ：圧入筒 Ｅ：小鋼球Ｈ，．Ｈ２
．ｌ｛’ ：ホース １：継手本体の鍔部２ａ，２ｂ
：ホース嵌め込み部
６ａ＋， ６ａｔ． ６ ｂ ：外筒の内周面に形
威された雌ねじ
９ａ，９ｂ：圧入筒の外周面に形威された雄ねじ１１ａ
．ｌｌｂ：圧入筒の内周面に形成されたテーパー内周面
１２ａ， １２ｂ：環状の隙間
１３：ホース嵌め込み部
１４：ｍ手本体に設けられた接続部1 to 7 are diagrams for explaining the present invention, in which FIG. 1 is an exploded perspective view of a hose joint C according to the present invention, FIG. 2 is an assembled perspective view, FIGS. 3 to 6 show two hoses Hi. } FIG. 7 is a half-sectional view of another hose joint C° according to the present invention. 8 and 9 are diagrams for explaining a conventional hose joint, in which FIG. 8 is a perspective view thereof, and FIG. 9 is a sectional view thereof. The explanations of the symbols of the main parts constituting the present invention are as follows. A, A': Joint body B, B': Outer cylinder c
．． c': Hose joint D. ,D! ,D″: Press-fit tube E: Small steel ball H,.H2
．． l{': Hose 1: Flange parts 2a, 2b of the joint body
: Hose fitting part 6a+, 6at. 6b: Female threads 9a, 9b formed on the inner peripheral surface of the outer cylinder: Male threads 11a formed on the outer peripheral surface of the press-fit cylinder
．． llb: Tapered inner circumferential surface 12a, 12b formed on the inner circumferential surface of the press-fit cylinder: Annular gap 13: Hose fitting portion 14: Connection portion provided on the m-hand body
Claims (4)
ース継手を介して内径の異なるホースが接続されていて
、内径の小さいホースの端部が薬液の噴出側になってい
ることを特徴とする農業動力噴霧機用異径ホース。(1) A hose used for agricultural power sprayers, characterized in that hoses with different inner diameters are connected via hose joints, and the end of the hose with the smaller inner diameter is on the side that sprays out the chemical solution. A different diameter hose for agricultural power sprayers.
ていると共に、円筒体における鍔部の両側がそれぞれホ
ース嵌め込み部となっている継手本体と；該継手本体の
鍔部の外径と対応する内径を有する円筒体の内周面に雌
ねじが形成され、継手本体の鍔部の外側に該継手本体と
同心となって嵌め込まれて固定される外筒と；該外筒の
内径と対応する外径を有する円筒体の外周面に雄ねじが
形成され、その内周面の少なくとも一部がテーパー内周
面となっていると共に、内周面の最小径の部分がホース
の外径と対応していて、前記外筒の内側にねじ込まれる
一対の圧入筒と；多数の小鋼球と；から成り、 前記継手本体の各ホース嵌め込み部に接続すべき各ホー
スの端部をそれぞれ嵌め込んだ後に、各ホースの端部を
覆うようにして継手本体の鍔部の外側に前記外筒を該継
手本体と同心にして嵌め込んで固定し、各ホースの外周
面と外筒の内周面との間に形成される環状の隙間に多数
の前記小鋼球をそれぞれ封入して、外筒の両端部から前
記一対の圧入筒をそれぞれねじ込むことにより、各圧入
筒のテーパー内周面とホースの外周面との間に前記小鋼
球を封じ込み、圧入筒のテーパー内周面の楔作用によっ
て小鋼球をホースの外周面に押し付けるように構成され
ていることを特徴とするホース継手。(2) A joint body in which a flange largely protrudes from the axial center of the cylindrical body, and both sides of the flange in the cylindrical body serve as hose fitting parts; an outer cylinder having an internal thread formed on the inner circumferential surface of a cylindrical body having an inner diameter corresponding to the outer diameter, and fitted and fixed to the outer side of the flange of the joint body concentrically with the joint body; A male thread is formed on the outer circumferential surface of the cylindrical body having an outer diameter corresponding to the inner diameter, and at least a part of the inner circumferential surface is a tapered inner circumferential surface, and the smallest diameter part of the inner circumferential surface is a tapered inner circumferential surface. It consists of a pair of press-fit tubes that correspond to the diameter and are screwed into the inside of the outer tube; and a number of small steel balls, and each end of each hose to be connected to each hose fitting part of the joint body is After fitting, the outer cylinder is fitted to the outside of the flange of the joint body so as to cover the end of each hose, and is fixed concentrically with the joint body, so that the outer peripheral surface of each hose and the inside of the outer cylinder are By enclosing a large number of the small steel balls in the annular gap formed between the outer cylinder and the outer cylinder, and screwing the pair of press-fit cylinders from both ends of the outer cylinder, the tapered inner peripheral surface of each press-fit cylinder is formed. and the outer peripheral surface of the hose, the small steel balls are enclosed between the hose and the outer peripheral surface of the hose, and the small steel balls are pressed against the outer peripheral surface of the hose by the wedge action of the tapered inner peripheral surface of the press-fit tube. Fittings.
込み部の外径が異なっていると共に、一対の圧入筒の内
径がそれぞれ異なっていて、内径の異なるホースの接続
が可能となっている請求項２に記載のホース継手。(3) The outer diameters of the hose fitting parts provided on both sides of the flange of the joint body are different, and the inner diameters of the pair of press-fit tubes are also different, making it possible to connect hoses with different inner diameters. The hose joint according to claim 2.
、円筒体における鍔部の一方側がホース嵌め込み部とな
っていると共に、その他方側が他の器具類に接続される
接続部となっている継手本体と；該継手本体の鍔部の外
径と対応する内径を有する円筒体の内周面に雌ねじが形
成され、継手本体の鍔部の外側に該継手本体と同心とな
って嵌め込まれて固定される外筒と；該外筒の内径と対
応する外径を有する円筒体の外周面に雄ねじが形成され
ていると共に、その内周面の少なくとも一部がテーパー
内周面となっていると共に、内周面の最小径の部分がホ
ースの外径と対応していて、前記外筒の内側にねじ込ま
れる圧入筒と；多数の小鋼球と；から成り、 前記継手本体のホース嵌め込み部に接続すべきホースの
端部を嵌め込んだ後に、該ホースの端部を覆うようにし
て継手本体の鍔部の外側に前記外筒を該継手本体と同心
にして嵌め込んで固定し、ホースの外周面と外筒の内周
面との間に形成される環状の隙間に多数の前記小鋼球を
封入して、外筒の内側に前記圧入筒をねじ込むことによ
り、圧入筒のテーパー内周面とホースの外周面との間に
前記小鋼球を封じ込み、圧入筒のテーパー内周面の楔作
用によって小鋼球をホースの外周面に押し付けるように
構成されていることを特徴とするホース継手。(4) A flange is largely protruded from the axial center of the cylindrical body, and one side of the cylindrical body serves as a hose fitting part, and the other side is a connection part that is connected to other appliances. A joint body with a female thread formed on the inner peripheral surface of a cylindrical body having an inner diameter corresponding to the outer diameter of the flange of the joint body, and a female thread formed on the outside of the flange of the joint body and concentric with the joint body. an outer cylinder that is fitted and fixed; a male thread is formed on the outer peripheral surface of the cylindrical body having an outer diameter corresponding to the inner diameter of the outer cylinder, and at least a part of the inner peripheral surface is a tapered inner peripheral surface; and a press-fit tube whose smallest diameter portion of the inner peripheral surface corresponds to the outer diameter of the hose and which is screwed into the inside of the outer tube; and a large number of small steel balls; After fitting the end of the hose to be connected to the hose fitting part, the outer cylinder is fitted concentrically with the joint body to the outside of the flange of the joint body so as to cover the end of the hose. A large number of the small steel balls are sealed in an annular gap formed between the outer peripheral surface of the hose and the inner peripheral surface of the outer cylinder, and the press-fit tube is screwed into the inside of the outer cylinder. The small steel balls are enclosed between the tapered inner circumferential surface of the tube and the outer circumferential surface of the hose, and the small steel balls are pressed against the outer circumferential surface of the hose by the wedge action of the tapered inner circumferential surface of the press-fit tube. A hose joint characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1145979A JPH0769032B2 (en) | 1989-06-08 | 1989-06-08 | Hose fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1145979A JPH0769032B2 (en) | 1989-06-08 | 1989-06-08 | Hose fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0314992A true JPH0314992A (en) | 1991-01-23 |
| JPH0769032B2 JPH0769032B2 (en) | 1995-07-26 |
Family
ID=15397392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1145979A Expired - Lifetime JPH0769032B2 (en) | 1989-06-08 | 1989-06-08 | Hose fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0769032B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55171785U (en) * | 1979-05-30 | 1980-12-09 | ||
| JPS58112455U (en) * | 1982-01-27 | 1983-08-01 | 株式会社丸山製作所 | Multi-mouth jet of backpack-type power spreader |
| JPS62106652U (en) * | 1985-12-21 | 1987-07-08 |
-
1989
- 1989-06-08 JP JP1145979A patent/JPH0769032B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55171785U (en) * | 1979-05-30 | 1980-12-09 | ||
| JPS58112455U (en) * | 1982-01-27 | 1983-08-01 | 株式会社丸山製作所 | Multi-mouth jet of backpack-type power spreader |
| JPS62106652U (en) * | 1985-12-21 | 1987-07-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0769032B2 (en) | 1995-07-26 |
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