WO2020059534A1 - Attachment structure for bell mouth - Google Patents
Attachment structure for bell mouth Download PDFInfo
- Publication number
- WO2020059534A1 WO2020059534A1 PCT/JP2019/035141 JP2019035141W WO2020059534A1 WO 2020059534 A1 WO2020059534 A1 WO 2020059534A1 JP 2019035141 W JP2019035141 W JP 2019035141W WO 2020059534 A1 WO2020059534 A1 WO 2020059534A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bell mouth
- fan
- opening
- convex portion
- fitted
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
Definitions
- the present disclosure relates to a bellmouth mounting structure, and more particularly to a bellmouth mounting structure that covers a gap between a fan shroud fixed to a radiator and a fan ring fixed to an engine.
- one end of the bell mouth is fitted to a fan shroud fixed to a radiator, and the other end of the bell mouth is fixed to an engine.
- a structure is disclosed in which a bell mouth is attached between the fan shroud and the fan ring by elastically contacting the fan ring.
- JP 2001-123836 A Japanese Patent Application Publication No. 2014-09636
- the technology of the present disclosure aims to effectively prevent the bell mouth from falling off by firmly holding the bell mouth on the fan ring.
- the technology of the present disclosure has a technology in which one end is attached to a fan shroud fixed to a radiator, and the other end is attached to a fan ring surrounding the fan while being fixed to an engine, and a gap between the fan shroud and the fan ring is provided.
- a cylindrical bell mouth mounting structure for covering at least one of the fan ring and the fan shroud, wherein the fitting mouth has a circular cross section and is open radially outward; And at least one of the openings on the one end side or the other end side, and a fitted convex portion having a circular cross section to be fitted into the fitting concave portion.
- an inclined surface portion is provided outside the opening of the fitting recess so as to extend obliquely outward from the opening end of the fitting recess in the radial direction.
- an opening width of the fitting concave portion is formed shorter than an outer diameter of the fitted convex portion, and the bell mouth is swingably held around the fitted convex portion as a fulcrum. preferable.
- the fitting concave portion may be provided on the fan ring, and the fitted convex portion may be provided on a periphery of the opening on the other end side of the bell mouth.
- the fitted convex portion has a circular convex portion formed in a substantially circular shape thicker than other portions of the bell mouth on the periphery of the opening of the bell mouth. May have a circular concave portion having a diameter larger than the diameter of the circular convex portion of the fitted convex portion, and an opening portion having an opening width shorter than the diameter of the circular convex portion. Good.
- the bell mouth can be effectively prevented from falling off by firmly holding the bell mouth on the fan ring.
- FIG. 1 is a schematic rear view showing a fan shroud structure to which a bellmouth mounting structure according to the present embodiment is applied.
- FIG. 2 is a sectional view taken along line II-II of FIG.
- FIG. 3 is a schematic cross-sectional view showing a bellmouth mounting structure according to the present embodiment.
- FIG. 1 is a schematic rear view showing a fan shroud structure 10 to which a bellmouth mounting structure 20 according to the present embodiment is applied
- FIG. 2 is a cross-sectional view taken along line AA of FIG.
- the fan shroud structure 10 includes a fan shroud 11, a fan 12 disposed between the fan shroud 11 and the engine E (shown only in FIG. 2), a fan ring 13 fixed to the engine E and surrounding the fan 12.
- a bell mouth 14 is provided to cover between the fan shroud 11 and the fan ring 13.
- the fan shroud 11 is formed in a substantially rectangular cylindrical shape, and has an opening edge on one end side fixed to a back surface of a radiator (not shown) facing the engine E with a bolt or the like. On the other end of the fan shroud 11, an opening 11A having an inner diameter larger than the outer diameter of the fan 12 is formed.
- the opening 11 ⁇ / b> A is formed in a substantially circular shape, and defines a ventilation space 15 (only shown in FIG. 2) for guiding gas to the fan 12.
- the fan 12 is arranged so that its rotation axis coincides with the central axis (axis) of the fan ring 13, and is housed inside the fan ring 13.
- the fan 12 is driven to rotate by the power of the engine E, for example.
- the fan ring 13 is formed in a substantially cylindrical shape, and is fixed to the engine E (see FIG. 2) with bolts or the like (not shown). Further, a first annular flange portion 13A located on the fan shroud 11 side and a second annular flange portion 13B located on the engine E side are formed on the outer peripheral surface of the fan ring 13 (both in FIG. 2). Only shown). Further, between the first annular flange portion 13A and the second annular flange portion 13B of the fan ring 13, a fitting concave groove 21 (see FIG. Only shown).
- the bell mouth 14 is formed in a substantially cylindrical shape with an elastic member such as a rubber material or a resin material, and covers a gap between the fan shroud 11 and the fan ring 13. For this reason, the bell mouth 14 is fitted and fixed to the annular concave portion 11B of the fan shroud 11 over substantially the entire periphery of the opening peripheral portion 14A on one end side (radiator side), and the opening on the other end side (engine side).
- the fitted projection 22 provided on the periphery is fitted into the fitting recess 21 of the fan ring 13.
- the bellmouth mounting structure 20 will be described in detail with reference to FIG.
- FIG. 3 is a schematic sectional view showing the bellmouth mounting structure 20 according to the present embodiment.
- the bellmouth mounting structure 20 includes a fitting recess 21 formed in the outer periphery of the fan ring 13, and a fitting protrusion provided in the periphery of the opening of the bellmouth 14 on the engine side. 22.
- the fitting concave portion 21 is provided at a predetermined pitch in the circumferential direction on the outer peripheral portion of the fan ring 13, and the fitted convex portion 22 is provided at a position corresponding to the fitting concave portion 21 on the periphery of the opening of the bell mouth 14.
- At least one pair of the fitting concave portion 21 and the fitting convex portion 22 is arranged on the upper and lower diagonal, or two pairs are arranged on the upper, lower, left and right diagonal.
- the number and arrangement relationship of the fitting concave portion 21 and the fitted convex portion 22 are not limited to these, and can be appropriately set according to the size of the fan ring 13 and the bell mouth 14.
- the fitting recess 21 is formed in a substantially circular cross section that opens outward in the radial direction of the fan ring 13.
- the opening width W of the fitting recess 21 is formed smaller than the diameter D1 of the circular portion (W ⁇ D1), and the opening side is narrowed.
- the inclined surfaces 21B and 21C are formed so that the distance between each of the inclined surfaces 21B and 21C increases toward the outside in the radial direction of the fan ring 13.
- the fitted convex portion 22 is formed on the periphery of the opening of the bell mouth 14 in a substantially circular cross section which is thicker than other portions of the bell mouth 14.
- the diameter D2 of the circular portion (circular convex portion) of the fitted convex portion 22 is longer than the opening width W of the fitting concave portion 21 and slightly smaller than the diameter D1 of the circular portion (circular concave portion) of the fitting concave portion 21. (W ⁇ D2 ⁇ D1).
- the bell mouth 14 is held swingably in the direction of the arrow X in the drawing with the fitted projection 22 as a fulcrum, so that the relative movement between the fan ring 13 and the fan shroud 11 (see FIGS. On the other hand, the bell mouth 14 can flexibly follow and deform.
- the fitting recess 21 having a substantially circular cross section that opens radially outward is provided on the outer peripheral portion of the fan ring 13, and another portion is provided on the periphery of the opening of the bell mouth 14 on the engine side.
- the bell mouth 14 is fitted to the fan ring 13 by fitting the fitted protrusion 22 having a substantially thicker cross section and fitting the fitted protrusion 22 into the fitting recess 21. Is configured to be swingable and firmly held on the fulcrum.
- the bell mouth 14 flexibly deforms to follow the relative movement between the fan ring 13 and the fan shroud 11 due to the vibration of the engine E and the like, and is reliably held by the fan ring 13, It is possible to effectively prevent the bellmouth 14 from falling off.
- the bell mouth 14 and the fan ring are provided. 13 is configured to be effectively prevented. This can effectively prevent the bellmouth 14 from being damaged due to the bellmouth 14 contacting the fan ring 13.
- the fitted projections 22 are not provided in an annular shape over the entire circumference of the bell mouth 14 but are provided partially at a predetermined pitch in the circumferential direction. That is, when assembling the bell mouth 14 to the fan ring 13, the worker can easily attach the bell mouth 14 to the fan ring 13 without spreading the bell mouth 14 with a large force, and the assembling workability is effectively improved. Can also be improved.
- bellmouth mounting structure 20 of the present embodiment has been described as being applied to the mounting site between the bellmouth 14 and the fan ring 13, the present invention is applied to the mounting site between the bellmouth 14 and the fan shroud 11. Is also good.
- the inclined surfaces 21B and 21C are formed in a flat shape, but the inclined surfaces 21B and 21C and the opening end 21A may be smoothly connected to each other in a curved shape.
- fitting concave portion 21 and the fitted convex portion 22 have been described as being partially provided at a predetermined pitch in the circumferential direction, but may be provided in an annular shape over the entire circumference in the circumferential direction. Can also be.
- the present invention has the effect of preventing the bellmouth from falling off, and is useful for a bellmouth mounting structure and the like.
Abstract
This attachment structure 20 is for a cylindrical bell mouth 14 that has one end side thereof attached to a fan shroud 11, that has the other end side thereof attached to a fan ring 13, and that covers the gap between the fan shroud 11 and the fan ring 13, said attachment structure 20 being provided with: a fitting recess 21 provided to the outer circumferential section of the fan ring 13 and having a circular cross section opening on the radially outward side of the fan ring 13; and a fitted protrusion 22 provided to the circumferential edge of an opening on the other end side of the bell mouth 14 and having a circular cross section to be fit into the fitting recess 21.
Description
本開示は、ベルマウスの取付構造に関し、特に、ラジエータに固定されたファンシュラウドと、エンジンに固定されたファンリングとの隙間を覆うベルマウスの取付構造に関する。
The present disclosure relates to a bellmouth mounting structure, and more particularly to a bellmouth mounting structure that covers a gap between a fan shroud fixed to a radiator and a fan ring fixed to an engine.
この種のベルマウスの取付構造として、例えば、特許文献１，２には、ベルマウスの一端側をラジエータに固定されたファンシュラウドに嵌合させると共に、ベルマウスの他端側をエンジンに固定されたファンリングに弾接させることにより、これらファンシュラウドとファンリングとの間にベルマウスを取り付けるようにした構造が開示されている。
As an attachment structure of this kind of bell mouth, for example, in Patent Documents 1 and 2, one end of the bell mouth is fitted to a fan shroud fixed to a radiator, and the other end of the bell mouth is fixed to an engine. A structure is disclosed in which a bell mouth is attached between the fan shroud and the fan ring by elastically contacting the fan ring.
ところで、ファンシュラウドとファンリングとの間には、エンジンの振動等を起因とした相対移動が生じる。このため、ファンリングを介してベルマウスに伝達されるエンジンの振動や相対移動に対して、ベルマウスの取付力が耐え切れなくなると、ベルマウスがファンリングやファンシュラウドから外れて脱落してしまう場合がある。
By the way, relative movement occurs between the fan shroud and the fan ring due to engine vibration and the like. For this reason, if the mounting force of the bellmouth cannot withstand the vibration or relative movement of the engine transmitted to the bellmouth via the fan ring, the bell mouth comes off the fan ring or the fan shroud and falls off. There are cases.
本開示の技術は、ベルマウスをファンリングに強固に固定保持させることにより、ベルマウスの脱落を効果的に防止することを目的とする。
技術 The technology of the present disclosure aims to effectively prevent the bell mouth from falling off by firmly holding the bell mouth on the fan ring.
本開示の技術は、一端側がラジエータに固定されたファンシュラウドに取り付けられると共に、他端側がエンジンに固定されてファンを囲むファンリングに取り付けられて、前記ファンシュラウドと前記ファンリングとの間の隙間を覆う筒状のベルマウスの取付構造であって、前記ファンリング又は前記ファンシュラウドの少なくとも一方の外周部に設けられると共に、径方向外側に開放する断面円形状の嵌合凹部と、前記ベルマウスの前記一端側又は前記他端側の少なくとも一方の開口周縁に設けられると共に、前記嵌合凹部に嵌め込まれる断面円形状の被嵌合凸部と、を備えることを特徴とする。
The technology of the present disclosure has a technology in which one end is attached to a fan shroud fixed to a radiator, and the other end is attached to a fan ring surrounding the fan while being fixed to an engine, and a gap between the fan shroud and the fan ring is provided. A cylindrical bell mouth mounting structure for covering at least one of the fan ring and the fan shroud, wherein the fitting mouth has a circular cross section and is open radially outward; And at least one of the openings on the one end side or the other end side, and a fitted convex portion having a circular cross section to be fitted into the fitting concave portion.
また、前記嵌合凹部の開口外側に、該嵌合凹部の開口端から径方向外側に向かって斜めに延びる傾斜面部が設けられていることが好ましい。
Preferably, an inclined surface portion is provided outside the opening of the fitting recess so as to extend obliquely outward from the opening end of the fitting recess in the radial direction.
また、前記嵌合凹部の開口幅が、前記被嵌合凸部の外径よりも短く形成されており、前記ベルマウスが前記被嵌合凸部を支点に揺動可能に保持されることが好ましい。
Further, an opening width of the fitting concave portion is formed shorter than an outer diameter of the fitted convex portion, and the bell mouth is swingably held around the fitted convex portion as a fulcrum. preferable.
また、前記嵌合凹部は、前記ファンリングに設けられ、前記被嵌合凸部は、前記ベルマウスの前記他端側の開口周縁に設けられてもよい。
The fitting concave portion may be provided on the fan ring, and the fitted convex portion may be provided on a periphery of the opening on the other end side of the bell mouth.
また、前記被嵌合凸部は、前記ベルマウスの前記開口周縁に、前記ベルマウスの他の部位よりも肉厚の略円形状に形成されている円形凸部を有し、前記嵌合凹部は、前記被嵌合凸部の前記円形凸部の直径よりも大きい直径を有する、円形凹部と、前記円形凸部の前記直径よりも短い開口幅を有する、開口部と、を有してもよい。
In addition, the fitted convex portion has a circular convex portion formed in a substantially circular shape thicker than other portions of the bell mouth on the periphery of the opening of the bell mouth. May have a circular concave portion having a diameter larger than the diameter of the circular convex portion of the fitted convex portion, and an opening portion having an opening width shorter than the diameter of the circular convex portion. Good.
本開示の技術によれば、ベルマウスをファンリングに強固に固定保持させることにより、ベルマウスの脱落を効果的に防止することができる。
According to the technology of the present disclosure, the bell mouth can be effectively prevented from falling off by firmly holding the bell mouth on the fan ring.
以下、添付図面に基づいて、本実施形態に係るベルマウスの取付構造を説明する。同一の部品には同一の符号を付してあり、それらの名称及び機能も同じである。したがって、それらについての詳細な説明は繰返さない。
Hereinafter, a bellmouth mounting structure according to the present embodiment will be described with reference to the accompanying drawings. The same components are denoted by the same reference numerals, and have the same names and functions. Therefore, detailed description thereof will not be repeated.
［全体構成］
図１は、本実施形態に係るベルマウスの取付構造２０が適用されファンシュラウド構造１０を示す模式的な背面図であり、図２は、図１のＡ－Ａ線断面図である。 [overall structure]
FIG. 1 is a schematic rear view showing afan shroud structure 10 to which a bellmouth mounting structure 20 according to the present embodiment is applied, and FIG. 2 is a cross-sectional view taken along line AA of FIG.
図１は、本実施形態に係るベルマウスの取付構造２０が適用されファンシュラウド構造１０を示す模式的な背面図であり、図２は、図１のＡ－Ａ線断面図である。 [overall structure]
FIG. 1 is a schematic rear view showing a
ファンシュラウド構造１０は、ファンシュラウド１１と、ファンシュラウド１１とエンジンＥ（図２にのみ示す）との間に配置されたファン１２と、エンジンＥに固定されてファン１２を囲むファンリング１３と、これらファンシュラウド１１とファンリング１３との間を覆うベルマウス１４とを備えている。
The fan shroud structure 10 includes a fan shroud 11, a fan 12 disposed between the fan shroud 11 and the engine E (shown only in FIG. 2), a fan ring 13 fixed to the engine E and surrounding the fan 12. A bell mouth 14 is provided to cover between the fan shroud 11 and the fan ring 13.
ファンシュラウド１１は、略矩形筒状に形成されており、その一端側開口縁をエンジンＥと対向する図示しないラジエータの背面にボルト等で固定されている。また、ファンシュラウド１１の他端側には、ファン１２の外径よりも内径の大きい開口部１１Ａが形成されている。開口部１１Ａは、略円形状に形成されており、気体をファン１２に導くための通気空間１５（図２にのみ示す）を区画形成する。
The fan shroud 11 is formed in a substantially rectangular cylindrical shape, and has an opening edge on one end side fixed to a back surface of a radiator (not shown) facing the engine E with a bolt or the like. On the other end of the fan shroud 11, an opening 11A having an inner diameter larger than the outer diameter of the fan 12 is formed. The opening 11 </ b> A is formed in a substantially circular shape, and defines a ventilation space 15 (only shown in FIG. 2) for guiding gas to the fan 12.
ファン１２は、その回転軸心がファンリング１３の中心軸（軸心）と一致するように配置されて、ファンリング１３の内部に収容されている。ファン１２は、例えば、エンジンＥの動力によって回転駆動される。
The fan 12 is arranged so that its rotation axis coincides with the central axis (axis) of the fan ring 13, and is housed inside the fan ring 13. The fan 12 is driven to rotate by the power of the engine E, for example.
ファンリング１３は、略円筒状に形成されており、エンジンＥ（図２参照）に図示しないボルト等で固定されている。また、ファンリング１３の外周面には、ファンシュラウド１１側に位置する第１環状フランジ部１３Ａ及び、エンジンＥ側に位置する第２環状フランジ部１３Ｂがそれぞれ形成されている（何れも図２にのみ示す）。さらに、ファンリング１３の第１環状フランジ部１３Ａと第２環状フランジ部１３Ｂとの間には、詳細を後述するベルマウスの取付構造２０の一部を構成する嵌合凹溝２１（図２にのみ示す）が設けられている。
The fan ring 13 is formed in a substantially cylindrical shape, and is fixed to the engine E (see FIG. 2) with bolts or the like (not shown). Further, a first annular flange portion 13A located on the fan shroud 11 side and a second annular flange portion 13B located on the engine E side are formed on the outer peripheral surface of the fan ring 13 (both in FIG. 2). Only shown). Further, between the first annular flange portion 13A and the second annular flange portion 13B of the fan ring 13, a fitting concave groove 21 (see FIG. Only shown).
ベルマウス１４は、例えば、ゴム材料や樹脂材料等の弾性部材で略円筒状に形成されており、ファンシュラウド１１とファンリング１３との隙間を覆う。このため、ベルマウス１４は、一端側（ラジエータ側）の開口周縁部１４Ａを略全周に亘ってファンシュラウド１１の環状凹部１１Ｂに嵌合固定されると共に、他端側（エンジン側）の開口周縁に設けたられた被嵌合凸部２２をファンリング１３の嵌合凹部２１に嵌め込まれている。以下、ベルマウスの取付構造２０の詳細を図３に基づいて説明する。
The bell mouth 14 is formed in a substantially cylindrical shape with an elastic member such as a rubber material or a resin material, and covers a gap between the fan shroud 11 and the fan ring 13. For this reason, the bell mouth 14 is fitted and fixed to the annular concave portion 11B of the fan shroud 11 over substantially the entire periphery of the opening peripheral portion 14A on one end side (radiator side), and the opening on the other end side (engine side). The fitted projection 22 provided on the periphery is fitted into the fitting recess 21 of the fan ring 13. Hereinafter, the bellmouth mounting structure 20 will be described in detail with reference to FIG.
［ベルマウスの取り付け構造］
図３は、本実施形態に係るベルマウスの取付構造２０を示す模式的な断面図である。 [Bellmouth mounting structure]
FIG. 3 is a schematic sectional view showing thebellmouth mounting structure 20 according to the present embodiment.
図３は、本実施形態に係るベルマウスの取付構造２０を示す模式的な断面図である。 [Bellmouth mounting structure]
FIG. 3 is a schematic sectional view showing the
図３に示すように、ベルマウスの取付構造２０は、ファンリング１３の外周部に凹設された嵌合凹部２１と、ベルマウス１４のエンジン側の開口周縁に設けられた被嵌合凸部２２とを備えている。
As shown in FIG. 3, the bellmouth mounting structure 20 includes a fitting recess 21 formed in the outer periphery of the fan ring 13, and a fitting protrusion provided in the periphery of the opening of the bellmouth 14 on the engine side. 22.
嵌合凹部２１は、ファンリング１３の外周部に周方向に所定のピッチで設けられ、被嵌合凸部２２は、ベルマウス１４の開口周縁の嵌合凹部２１に対応する部位に設けられている。これら嵌合凹部２１及び被嵌合凸部２２は、少なくとも一対が上下の対角上に配置されるか、或は、二対が上下左右の対角上に配置されている。なお、嵌合凹部２１及び被嵌合凸部２２の個数や配置関係はこれらに限定されず、ファンリング１３やベルマウス１４の大きさ等に応じて適宜に設定することができる。
The fitting concave portion 21 is provided at a predetermined pitch in the circumferential direction on the outer peripheral portion of the fan ring 13, and the fitted convex portion 22 is provided at a position corresponding to the fitting concave portion 21 on the periphery of the opening of the bell mouth 14. I have. At least one pair of the fitting concave portion 21 and the fitting convex portion 22 is arranged on the upper and lower diagonal, or two pairs are arranged on the upper, lower, left and right diagonal. In addition, the number and arrangement relationship of the fitting concave portion 21 and the fitted convex portion 22 are not limited to these, and can be appropriately set according to the size of the fan ring 13 and the bell mouth 14.
嵌合凹部２１は、ファンリング１３の径方向外側に開放する断面略円形状に形成されている。嵌合凹部２１の開口幅Ｗは、その円形部の直径Ｄ１よりも狭く形成されており（Ｗ＜Ｄ１）、開口側が絞られるようになっている。また、嵌合凹部２１の開口外側には、嵌合凹部２１の開口端２１Ａ（開口部）からファンリング１３の径方向外側に向かって斜めに延びる傾斜面部２１Ｂ，２１Ｃが設けられている。各傾斜面部２１Ｂ，２１Ｃは、ファンリング１３の径方向外側に向かうに従い、互いに対向距離が拡張するように形成されている。
The fitting recess 21 is formed in a substantially circular cross section that opens outward in the radial direction of the fan ring 13. The opening width W of the fitting recess 21 is formed smaller than the diameter D1 of the circular portion (W <D1), and the opening side is narrowed. Outside the opening of the fitting recess 21, there are provided inclined surfaces 21B and 21C that extend obliquely from the opening end 21A (opening) of the fitting recess 21 toward the radial outside of the fan ring 13. The inclined surfaces 21B and 21C are formed so that the distance between each of the inclined surfaces 21B and 21C increases toward the outside in the radial direction of the fan ring 13.
被嵌合凸部２２は、ベルマウス１４の開口周縁に、ベルマウス１４の他の部位よりも肉厚の断面略円形状に形成されている。被嵌合凸部２２の円形部（円形凸部）の直径Ｄ２は、嵌合凹部２１の開口幅Ｗよりも長く、且つ、嵌合凹部２１の円形部（円形凹部）の直径Ｄ１よりも僅かに短く形成されている（Ｗ＜Ｄ２＜Ｄ１）。
嵌合 The fitted convex portion 22 is formed on the periphery of the opening of the bell mouth 14 in a substantially circular cross section which is thicker than other portions of the bell mouth 14. The diameter D2 of the circular portion (circular convex portion) of the fitted convex portion 22 is longer than the opening width W of the fitting concave portion 21 and slightly smaller than the diameter D1 of the circular portion (circular concave portion) of the fitting concave portion 21. (W <D2 <D1).
すなわち、嵌合凹部２１に被嵌合凸部２２を嵌め込むと、被嵌合凸部２２の嵌合凹部２１からの抜け出しが嵌合凹部２１の開口端２１Ａの周縁によって効果的に規制されるようになっている。また、ベルマウス１４が被嵌合凸部２２を支点に図中矢印Ｘ方向に揺動可能に保持されることで、ファンリング１３とファンシュラウド１１（図１，２参照）との相対移動に対してベルマウス１４が柔軟に追従変形できるようになっている。
That is, when the fitting convex portion 22 is fitted into the fitting concave portion 21, the escape of the fitting convex portion 22 from the fitting concave portion 21 is effectively regulated by the periphery of the opening end 21A of the fitting concave portion 21. It has become. In addition, the bell mouth 14 is held swingably in the direction of the arrow X in the drawing with the fitted projection 22 as a fulcrum, so that the relative movement between the fan ring 13 and the fan shroud 11 (see FIGS. On the other hand, the bell mouth 14 can flexibly follow and deform.
以上詳述した本実施形態によれば、ファンリング１３の外周部に径方向外側に開放する断面略円形状の嵌合凹部２１を設けると共に、ベルマウス１４のエンジン側の開口周縁に他の部位よりも肉厚の断面略円形状の被嵌合凸部２２を設け、嵌合凹部２１に被嵌合凸部２２を嵌め込むことにより、ベルマウス１４がファンリング１３に被嵌合凸部２２を支点に揺動可能且つ強固に保持されるように構成されている。これにより、ベルマウス１４がエンジンＥの振動等を起因としたファンリング１３とファンシュラウド１１との相対移動に対して柔軟に追従変形しつつ、ファンリング１３に確実に保持されるようになり、ベルマウス１４の脱落を効果的に防止することが可能になる。
According to the present embodiment described above, the fitting recess 21 having a substantially circular cross section that opens radially outward is provided on the outer peripheral portion of the fan ring 13, and another portion is provided on the periphery of the opening of the bell mouth 14 on the engine side. The bell mouth 14 is fitted to the fan ring 13 by fitting the fitted protrusion 22 having a substantially thicker cross section and fitting the fitted protrusion 22 into the fitting recess 21. Is configured to be swingable and firmly held on the fulcrum. As a result, the bell mouth 14 flexibly deforms to follow the relative movement between the fan ring 13 and the fan shroud 11 due to the vibration of the engine E and the like, and is reliably held by the fan ring 13, It is possible to effectively prevent the bellmouth 14 from falling off.
また、嵌合凹部２１の開口外側に、嵌合凹部２１の開口端２１Ａからファンリング１３の径方向外側に向かって斜めに延びる傾斜面部２１Ｂ，２１Ｃを設けたことにより、ベルマウス１４とファンリング１３との干渉が効果的に防止されるように構成されている。これにより、ベルマウス１４がファンリング１３に接触することで引き起こされるベルマウス１４の破損等を効果的に防止することができる。
In addition, by providing the inclined surfaces 21B and 21C that extend obliquely from the opening end 21A of the fitting recess 21 toward the radial outside of the fan ring 13 outside the opening of the fitting recess 21, the bell mouth 14 and the fan ring are provided. 13 is configured to be effectively prevented. This can effectively prevent the bellmouth 14 from being damaged due to the bellmouth 14 contacting the fan ring 13.
また、被嵌合凸部２２は、ベルマウス１４の周方向の全周に亘って円環状に設けられることなく、周方向に所定のピッチで部分的に設けられる。すなわち、ベルマウス１４をファンリング１３に組み付ける際に、作業者は大きな力でベルマウス１４を広げることなく、ベルマウス１４をファンリング１３に容易に取り付けることが可能となり、組み付け作業性を効果的に向上することもできる。
嵌合 Furthermore, the fitted projections 22 are not provided in an annular shape over the entire circumference of the bell mouth 14 but are provided partially at a predetermined pitch in the circumferential direction. That is, when assembling the bell mouth 14 to the fan ring 13, the worker can easily attach the bell mouth 14 to the fan ring 13 without spreading the bell mouth 14 with a large force, and the assembling workability is effectively improved. Can also be improved.
なお、本開示は、上述の実施形態に限定されるものではなく、本開示の趣旨を逸脱しない範囲で、適宜変形して実施することが可能である。
Note that the present disclosure is not limited to the above-described embodiment, and can be appropriately modified and implemented without departing from the spirit of the present disclosure.
例えば、本実施形態のベルマウスの取付構造２０は、ベルマウス１４とファンリング１３との取り付け部位に適用されるものとして説明したが、ベルマウス１４とファンシュラウド１１との取り付け部位に適用してもよい。
For example, although the bellmouth mounting structure 20 of the present embodiment has been described as being applied to the mounting site between the bellmouth 14 and the fan ring 13, the present invention is applied to the mounting site between the bellmouth 14 and the fan shroud 11. Is also good.
また、図示例において、傾斜面部２１Ｂ，２１Ｃは平面状に形成されているが、傾斜面部２１Ｂ，２１Ｃ及び開口端２１Ａを曲面状に滑らかに連接させてもよい。
Further, in the illustrated example, the inclined surfaces 21B and 21C are formed in a flat shape, but the inclined surfaces 21B and 21C and the opening end 21A may be smoothly connected to each other in a curved shape.
また、嵌合凹部２１及び被嵌合凸部２２は、周方向に所定のピッチで部分的に設けられるものとして説明したが、周方向の全周に亘って円環状に設けることもできる。
ともできる。 Further, the fittingconcave portion 21 and the fitted convex portion 22 have been described as being partially provided at a predetermined pitch in the circumferential direction, but may be provided in an annular shape over the entire circumference in the circumferential direction.
Can also be.
ともできる。 Further, the fitting
Can also be.
本出願は、2018年9月20日付で出願された日本国特許出願（特願2018-175694）に基づくものであり、その内容はここに参照として取り込まれる。
This application is based on a Japanese patent application filed on September 20, 2018 (Japanese Patent Application No. 2018-175694), the contents of which are incorporated herein by reference.
本発明は、ベルマウスの脱落を防止することができるという効果を有し、ベルマウスの取付構造等に有用である。
The present invention has the effect of preventing the bellmouth from falling off, and is useful for a bellmouth mounting structure and the like.
１０ ファンシュラウド構造
１１ ファンシュラウド
１２ ファン
１３ ファンリング
１４ ベルマウス
２０ ベルマウスの取付構造
２１ 嵌合凹部
２１Ｂ，２１Ｃ 傾斜面部
２２ 被嵌合凸部 DESCRIPTION OFSYMBOLS 10 Fan shroud structure 11 Fan shroud 12 Fan 13 Fan ring 14 Bellmouth 20 Bellmouth mounting structure 21 Fitting recess 21B, 21C Inclined surface part 22 Fitted convex part
１１ ファンシュラウド
１２ ファン
１３ ファンリング
１４ ベルマウス
２０ ベルマウスの取付構造
２１ 嵌合凹部
２１Ｂ，２１Ｃ 傾斜面部
２２ 被嵌合凸部 DESCRIPTION OF
Claims (5)
- 一端側がラジエータに固定されたファンシュラウドに取り付けられると共に、他端側がエンジンに固定されてファンを囲むファンリングに取り付けられて、前記ファンシュラウドと前記ファンリングとの間の隙間を覆う筒状のベルマウスの取付構造であって、
前記ファンリング又は前記ファンシュラウドの少なくとも一方の外周部に設けられると共に、径方向外側に開放する断面円形状の嵌合凹部と、
前記ベルマウスの前記一端側又は前記他端側の少なくとも一方の開口周縁に設けられると共に、前記嵌合凹部に嵌め込まれる断面円形状の被嵌合凸部と、を備える
ことを特徴とするベルマウスの取付構造。 One end is attached to a fan shroud fixed to a radiator, and the other end is attached to a fan ring surrounding the fan fixed to the engine, and covers a gap between the fan shroud and the fan ring. A mouse mounting structure,
A fitting recess provided on at least one outer peripheral portion of the fan ring or the fan shroud and having a circular cross section that opens radially outward,
A bell mouth, which is provided on at least one of the peripheral edges of the opening on the one end side or the other end side of the bell mouth and has a circular cross section to be fitted into the fitting recess. Mounting structure. - 前記嵌合凹部の開口外側に、該嵌合凹部の開口端から径方向外側に向かって斜めに延びる傾斜面部が設けられている
請求項１に記載のベルマウスの取付構造。 The mounting structure of the bell mouth according to claim 1, wherein an inclined surface portion extending obliquely from the opening end of the fitting concave portion toward the outside in the radial direction is provided outside the opening of the fitting concave portion. - 前記嵌合凹部の開口幅が、前記被嵌合凸部の外径よりも短く形成されており、前記ベルマウスが前記被嵌合凸部を支点に揺動可能に保持される
請求項１又は２に記載のベルマウスの取付構造。 The opening width of the fitting concave portion is formed shorter than the outer diameter of the fitted convex portion, and the bell mouth is held swingably around the fitted convex portion as a fulcrum. 3. The mounting structure of the bell mouth according to 2. - 前記嵌合凹部は、前記ファンリングに設けられ、
前記被嵌合凸部は、前記ベルマウスの前記他端側の開口周縁に設けられる、
請求項１に記載のベルマウスの取付構造。 The fitting recess is provided in the fan ring,
The fitted protrusion is provided on an opening edge on the other end side of the bell mouth,
A bellmouth mounting structure according to claim 1. - 前記被嵌合凸部は、前記ベルマウスの前記開口周縁に、前記ベルマウスの他の部位よりも肉厚の略円形状に形成されている円形凸部を有し、
前記嵌合凹部は、
前記被嵌合凸部の前記円形凸部の直径よりも大きい直径を有する、円形凹部と、
前記円形凸部の前記直径よりも短い開口幅を有する、開口部と、を有する、
請求項４に記載のベルマウスの取付構造。 The fitted convex portion has a circular convex portion formed on the periphery of the opening of the bell mouth in a substantially circular shape thicker than other portions of the bell mouth,
The fitting recess,
A circular concave portion having a diameter larger than the diameter of the circular convex portion of the fitted convex portion,
Having an opening width shorter than the diameter of the circular convex portion,
A mounting structure for the bell mouth according to claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201980061315.8A CN112739894A (en) | 2018-09-20 | 2019-09-06 | Mounting structure of horn mouth |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-175694 | 2018-09-20 | ||
| JP2018175694A JP2020045841A (en) | 2018-09-20 | 2018-09-20 | Bell mouth mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020059534A1 true WO2020059534A1 (en) | 2020-03-26 |
Family
ID=69887306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2019/035141 WO2020059534A1 (en) | 2018-09-20 | 2019-09-06 | Attachment structure for bell mouth |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2020045841A (en) |
| CN (1) | CN112739894A (en) |
| WO (1) | WO2020059534A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5594494U (en) * | 1978-12-26 | 1980-06-30 | ||
| JPS5824417U (en) * | 1981-08-07 | 1983-02-16 | 三菱自動車工業株式会社 | Shroud device |
| JPH01131896A (en) * | 1987-11-16 | 1989-05-24 | Nippon Denso Co Ltd | Parts fitting structure of tank for heat exchanger |
| JPH02119929U (en) * | 1989-03-15 | 1990-09-27 | ||
| JPH084530A (en) * | 1994-06-23 | 1996-01-09 | Aisin Chem Co Ltd | Cooling fan shroud device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0814045A (en) * | 1994-06-23 | 1996-01-16 | Aisin Chem Co Ltd | Cooling fan shroud device |
| JPH1030437A (en) * | 1996-07-18 | 1998-02-03 | Toyota Autom Loom Works Ltd | Fan mounting structure in radiator |
| JP4412830B2 (en) * | 2000-08-10 | 2010-02-10 | 株式会社小松製作所 | Engine cooling system |
| JP2005188460A (en) * | 2003-12-26 | 2005-07-14 | Hitachi Constr Mach Co Ltd | Engine cooling device for construction machinery |
| JP6003294B2 (en) * | 2012-06-29 | 2016-10-05 | いすゞ自動車株式会社 | Fan shroud structure |
| CN103410845A (en) * | 2013-07-09 | 2013-11-27 | 郑州飞机装备有限责任公司 | Tensile ball hinge structure |
| JP6672697B2 (en) * | 2015-10-23 | 2020-03-25 | いすゞ自動車株式会社 | Mounting structure of fan cover |
| JP2020045843A (en) * | 2018-09-20 | 2020-03-26 | いすゞ自動車株式会社 | Bell mouth mounting structure |
-
2018
- 2018-09-20 JP JP2018175694A patent/JP2020045841A/en active Pending
-
2019
- 2019-09-06 WO PCT/JP2019/035141 patent/WO2020059534A1/en active Application Filing
- 2019-09-06 CN CN201980061315.8A patent/CN112739894A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5594494U (en) * | 1978-12-26 | 1980-06-30 | ||
| JPS5824417U (en) * | 1981-08-07 | 1983-02-16 | 三菱自動車工業株式会社 | Shroud device |
| JPH01131896A (en) * | 1987-11-16 | 1989-05-24 | Nippon Denso Co Ltd | Parts fitting structure of tank for heat exchanger |
| JPH02119929U (en) * | 1989-03-15 | 1990-09-27 | ||
| JPH084530A (en) * | 1994-06-23 | 1996-01-09 | Aisin Chem Co Ltd | Cooling fan shroud device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020045841A (en) | 2020-03-26 |
| CN112739894A (en) | 2021-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7674044B2 (en) | Sealing device | |
| EP3242054B1 (en) | Sealing structure with torsional damper and oil seal | |
| JP6123946B2 (en) | Sealing structure | |
| JP2005241013A (en) | Connection device between shaft pin and rotary joint | |
| JP2020101153A (en) | Blower fan | |
| JP2006342829A (en) | Sealing device | |
| JP2010025138A (en) | Sealing arrangement | |
| JP2015518949A (en) | Radial shaft seal and assembly including the same | |
| CN105393441B (en) | Motor with armature spindle and housing component | |
| WO2020059534A1 (en) | Attachment structure for bell mouth | |
| JP2002213484A (en) | Boot for constant velocity universal joint | |
| JP6994415B2 (en) | Center bearing support structure | |
| US6953193B2 (en) | Sealing apparatus | |
| JP6718734B2 (en) | Sealing device | |
| JPH09242775A (en) | Mount for boot | |
| JP2020045844A (en) | Bell mouth mounting structure | |
| JP3185997U (en) | Sealing device | |
| KR20190077105A (en) | Sealing device for rotary shaft of combustion engine | |
| JP4280903B2 (en) | Sealing device | |
| JP2008207608A (en) | Power transmission shaft | |
| JP2011043212A (en) | Sealing device | |
| JP2020045842A (en) | Bell mouth mounting structure | |
| JP6447088B2 (en) | Fan cover mounting structure | |
| JP2008232249A (en) | Dust cover fixing structure | |
| JP4587904B2 (en) | Power transmission device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19862503 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19862503 Country of ref document: EP Kind code of ref document: A1 |