JP6022803B2 - Joint member - Google Patents

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JP6022803B2
JP6022803B2 JP2012094581A JP2012094581A JP6022803B2 JP 6022803 B2 JP6022803 B2 JP 6022803B2 JP 2012094581 A JP2012094581 A JP 2012094581A JP 2012094581 A JP2012094581 A JP 2012094581A JP 6022803 B2 JP6022803 B2 JP 6022803B2
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ventilation
ventilation system
engine
convex portion
joint member
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JP2013221467A (en
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雅元 中島
雅元 中島
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Arai Seisakusho Co Ltd
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Arai Seisakusho Co Ltd
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Description

本発明は、一方から他方に通気させる通気経路を相互に連結する部位に適用され、その連結された状態における優れた抜け止め効果を発揮しつつ、かつ、高い密封性を維持するジョイント部材に関する。   The present invention relates to a joint member that is applied to a portion where air passages for venting from one side to the other are connected to each other, and that exhibits an excellent retaining effect in the connected state and maintains high sealing performance.

従来から、例えば自動車やバイク等の各種車両には、空気(エア)を一方から他方に通気(吸気、排気)させる通気経路が構築されており、一方の通気経路が構築された一方の通気系と、他方の通気経路が構築された他方の通気系とを相互に連結するための種々のジョイント部材が知られている。一例として、例えば特許文献1には、エンジン及びキャブレターにそれぞれ設けられた被連結部に対して連結可能な連結構造を有するジョイント部材(特許文献1中では連結部材という)が示されている。   Conventionally, for example, various vehicles such as automobiles and motorcycles have been constructed with a ventilation path that ventilates air (air) from one side to the other (intake and exhaust), and one ventilation system in which one ventilation path is constructed. There are known various joint members for interconnecting the other ventilation system in which the other ventilation path is constructed. As an example, for example, Patent Document 1 discloses a joint member (referred to as a connecting member in Patent Document 1) having a connection structure that can be connected to a connected portion provided in each of an engine and a carburetor.

ここで、エンジン及びキャブレターにおける各被連結部には、それぞれ、その一部を周方向に沿って連続して凹状に窪ませた環状凹部が設けられていると共に、ジョイント部材における連結構造には、そのエンジン側及びキャブレター側のそれぞれの部位に、その一部を周方向に沿って連続して凸状に突出させた環状凸部が設けられている。   Here, each connected portion in the engine and the carburetor is provided with an annular recess in which a part thereof is continuously recessed along the circumferential direction, and the connection structure in the joint member includes: An annular convex portion is provided on each of the engine side and the carburetor side in such a manner that a part thereof continuously protrudes along the circumferential direction.

この場合、エンジンとキャブレターとの間にジョイント部材を介在させて、上記した各被連結部の環状凹部と連結構造の各環状凸部とを相互に嵌合させた後、ジョイント部材をクランプバンドで締め付けることで、当該ジョイント部材を、エンジン及びキャブレターに対して抜け止めされた状態で連結させることができる。   In this case, a joint member is interposed between the engine and the carburetor so that the annular recesses of the respective connected portions and the annular convex portions of the connection structure are fitted to each other, and then the joint member is clamped with a clamp band. By tightening, the joint member can be connected to the engine and the carburetor in a state of being prevented from coming off.

これにより、キャブレターからジョイント部材を介してエンジンに至る一連の通気経路が構築され、かかる通気経路において、エンジンが空気を吸い込む力(吸入負圧)を利用することで、気化燃料(ガソリン、軽油等)と空気が混ざり合った混合気をエンジンに効率よく送り込むことができる。   As a result, a series of ventilation paths from the carburetor to the engine via the joint member is constructed, and in this ventilation path, vaporized fuel (gasoline, light oil, etc.) is used by utilizing the force (intake negative pressure) that the engine sucks in air. ) And air can be efficiently fed into the engine.

特開2004−44394号公報(図1、図2)JP 2004-44394 A (FIGS. 1 and 2)

ところで、エンジン及びキャブレターとジョイント部材との連結においては、上記した各被連結部の環状凹部と連結構造の各環状凸部とを相互に嵌合させて、クランプバンドで締め付けることで(以下、嵌合締付構造という)、双方が密着した状態となるため、かかる状態において、ある程度の密封性を期待することができる。   By the way, in the connection of the engine and the carburetor and the joint member, the above-described annular recesses of each connected portion and the respective annular projections of the connection structure are fitted to each other and tightened with a clamp band (hereinafter referred to as fitting). Since it is in a state where both sides are in close contact with each other), a certain degree of sealing performance can be expected in this state.

しかしながら、上記した通気経路において、混合気は、高圧で高速に送られるため、当該通気経路は、常に、混合気からの高圧高速作用にさらされた状態にある。このため、混合気からの高圧高速作用の程度(大きさ)によっては、上記した嵌合締付構造では、混合気に対する密封性が不十分となる虞がある。そうなると、例えば、上記した各被連結部の環状凹部と連結構造の各環状凸部との嵌合部位(即ち、隙間)を通って、混合気が外部に漏洩してしまう場合が想定される。   However, since the air-fuel mixture is sent at high pressure and high speed in the above-described air passage, the air passage is always exposed to the high-pressure and high-speed action from the air-fuel mixture. For this reason, depending on the degree (size) of the high-pressure and high-speed action from the air-fuel mixture, the above-described fitting and tightening structure may have insufficient sealing performance against the air-fuel mixture. In that case, for example, a case where the air-fuel mixture leaks to the outside through a fitting portion (that is, a gap) between the annular concave portion of each connected portion and each annular convex portion of the connection structure is assumed.

本発明は、このような問題を解決するためになされており、その目的は、一方から他方に通気させる通気経路を相互に連結する部位に適用され、その連結された状態における優れた抜け止め効果を発揮しつつ、かつ、高い密封性を維持するジョイント部材を提供することにある。   The present invention has been made in order to solve such a problem, and the object thereof is applied to a portion that interconnects ventilation paths for venting from one to the other, and has an excellent retaining effect in the connected state. An object of the present invention is to provide a joint member that exhibits high sealing performance and maintains high sealing performance.

このような目的を達成するために、一方から他方に通気させる通気経路において、一方の通気経路が構築された一方の通気系と、他方の通気経路が構築された他方の通気系とを相互に連結させる中空のジョイント部材であって、前記一方の通気系に設けられた被固定部に対して固定可能な固定構造と、前記他方の通気系に設けられた被連結部に対して締付部材によって連結可能な弾性を有する連結構造と、前記固定構造を一方の通気系の被固定部に固定すると共に、前記連結構造を他方の通気系の被連結部に連結させた状態で、前記一方の通気経路と前記他方の通気経路とを相互に連通させる連通経路とを備え、前記連結構造には、その一部を凸状に突出させた嵌合用凸部と、この嵌合用凸部に軸方向で隣接して設けられ、その一部を周方向に沿って連続して嵌合用凸部と共に軸中心径方向に向かって凸状に突出させた密封用凸部とがそれぞれ少なくとも1つずつ設けられており、前記締付部材によって連結構造を他方の通気系の被連結部に連結させた状態において、前記嵌合用凸部が、前記被連結部の一部を凹状に窪ませた環状凹部に嵌合することで、連結構造を被連結部に対して抜け止めされた状態に維持すると共に、前記密封用凸部が、締付部材の締付力によって弾性変形して押し潰され、前記被連結部の周面に密着することで、連結構造と被連結部との間を密封状態に維持しており、前記連結構造には、その一部を被連結部方向に突出させた一対の位置決め用突起が設けられ、前記密封用凸部は、前記嵌合用凸部よりも凸形状を小さくし、通気方向に沿って前記嵌合用凸部よりも下流側に設けられ、前記嵌合用凸部及び前記密封用凸部は、締付部材の配設領域の直下にて、当該締付部材の締付力が直接作用する部位に位置付けられている。
本発明では、前記一方の通気系は、各種車両のエンジンであり、前記他方の通気系は、当該エンジンに空気を送り出すスロットルボディであり、前記エンジンに設けられた被固定部に対して固定構造を固定すると共に、前記締付部材によって連結構造をスロットルボディの被連結部に連結させた状態において、前記スロットルボディからジョイント部材を介してエンジンに至る一連の通気経路が構築され、かかる通気経路において、空気がスロットルボディからジョイント部材を通ってエンジンに送り込まれる。
In order to achieve such an object, in the ventilation path for venting from one to the other, one ventilation system in which one ventilation path is constructed and the other ventilation system in which the other ventilation path is constructed are mutually connected. a hollow joint member for connecting, member tightening and fixable fixing structure for the coupled portion provided on the other of the vent system relative the fixed portion provided in the one of the ventilation system a connecting structure with a connectable elastic by, while fixing the fixed structure fixed portion of one of the ventilation system, in a state of being connected to the coupled portion of the other vent systems the connection structure, the one and a communicating path for communicating with the other of the vent passage and the vent passage to each other, wherein the connecting structure, and a part of the fitting convex portion which projects convexly, axially in this fitting protrusion in disposed adjacent, a part of the circumferential direction A sealing projection which toward the axial center radially projecting convexly with fitting protrusion continuously along is provided by at least one of each, the other vent connection structure by the fastening member in a state of being connected to the connected portion of the system, the fitting convex portion is, the by fitting the annular recess is recessed portions to concave the connected portion, the connecting structure with respect to the coupled portion while maintaining the stop state leakage, the sealing projection has, crushed elastically deformed by the tightening force of the tightening member, said by close contact with the peripheral surface of the coupling portion, the coupling structure and the object to be The connection structure is maintained in a sealed state, and the connection structure is provided with a pair of positioning projections, a part of which protrudes in the direction of the connected portion. The convex shape is smaller than the joint convex portion, and the convex portion for fitting along the ventilation direction. Remote provided downstream, the fitting convex portion and the sealing projection is just below the arrangement region of the clamping member, the tightening force of the member with the tightening is not positioned at a site which acts directly The
In the present invention, the one ventilation system is an engine of various vehicles, the other vent systems are throttle body for feeding air to the engine, the fixing structure relative to the fixed portion provided in said engine fixes the, in a state of being connected to the coupling structure by the fastening member in the connected portion of the throttle body, a series of vent path to the engine via a joint member from the throttle body is constructed in such a venting pathway Air is sent from the throttle body to the engine through the joint member.

本発明によれば、一方から他方に通気させる通気経路を相互に連結する部位に適用され、その連結された状態における優れた抜け止め効果を発揮しつつ、かつ、高い密封性を維持するジョイント部材を実現することができる。   According to the present invention, a joint member that is applied to a portion that interconnects ventilation paths that allow ventilation from one side to the other and that exhibits an excellent retaining effect in the connected state and that maintains high sealing performance. Can be realized.

(a)は、本発明の一実施形態に係るジョイント部材の構成を示す側面図、(b)は、本発明の一実施形態に係るジョイント部材の外観構成を示す斜視図。(a) is a side view which shows the structure of the joint member which concerns on one Embodiment of this invention, (b) is a perspective view which shows the external appearance structure of the joint member which concerns on one Embodiment of this invention. (a)は、本発明の一実施形態に係るジョイント部材において、その連結構造の構成を一部拡大して示す断面図、(b)は、本発明の一実施形態において、ジョイント部材の連結構造に相手部材の被連結部が連結された状態を一部拡大して示す断面図。(a) is sectional drawing which partially enlarges and shows the structure of the connection structure in the joint member which concerns on one Embodiment of this invention, (b) is the connection structure of a joint member in one Embodiment of this invention. Sectional drawing which partially enlarges and shows the state by which the to-be-connected part of the other party member was connected.

以下、本発明の一実施形態に係るジョイント部材について、添付図面を参照して説明する。
本実施形態のジョイント部材は、一方から他方に通気させる通気経路において、一方の通気経路が構築された一方の通気系と、他方の通気経路が構築された他方の通気系とを相互に連結させるように、中空を成して構成されている。この場合、通気経路としては、例えば、空気(エア)を吸気するための経路、或いは、空気(エア)を排気するための経路を想定することができるが、ここでは一例として、例えば自動車やバイク等の各種車両の内燃機関(吸気経路)において、一方の通気系としてエンジン、また、他方の通気系としてスロットルボディ(空気(エア)をエンジンに送り出すもの)をそれぞれ想定する。
Hereinafter, a joint member according to an embodiment of the present invention will be described with reference to the accompanying drawings.
The joint member according to the present embodiment interconnects one ventilation system in which one ventilation path is constructed and the other ventilation system in which the other ventilation path is constructed in the ventilation path for venting from one to the other. Thus, it is configured to be hollow. In this case, as the ventilation path, for example, a path for inhaling air (air) or a path for exhausting air (air) can be assumed, but here, as an example, for example, an automobile or a motorcycle In an internal combustion engine (intake path) of various vehicles such as an engine, an engine is assumed as one ventilation system, and a throttle body (one that sends air (air) to the engine) is assumed as the other ventilation system.

図1(a),(b)及び図2(a)に示すように、本実施形態のジョイント部材2は、一方の通気系4(エンジン)に設けられた被固定部4pに対して固定可能な固定構造2aと、他方の通気系6(スロットルボディ)に設けられた被連結部6pに対して締付部材8によって連結可能な弾性を有する連結構造2bと、固定構造2aを一方の通気系4(エンジン)の被固定部4pに固定すると共に、連結構造2bを他方の通気系6(スロットルボディ)の被連結部6pに連結させた状態で、一方の通気経路と他方の通気経路とを相互に連通させる連通経路2cとを備えており、これら各構成2a,2b,2cがジョイント本体2sに一体化されている。   As shown in FIGS. 1 (a), 1 (b) and 2 (a), the joint member 2 of the present embodiment can be fixed to a fixed portion 4p provided in one ventilation system 4 (engine). The fixed structure 2a, the connecting structure 2b having elasticity that can be connected to the connected portion 6p provided in the other ventilation system 6 (throttle body) by the tightening member 8, and the fixing structure 2a as one ventilation system 4 (engine) is fixed to the fixed portion 4p, and the connecting structure 2b is connected to the connected portion 6p of the other ventilation system 6 (throttle body), and one ventilation path and the other ventilation path are connected to each other. A communication path 2c that communicates with each other is provided, and these components 2a, 2b, and 2c are integrated with the joint body 2s.

ここで、一方の通気系4(エンジン)に構築された一方の通気経路、並びに、他方の通気系6(スロットルボディ)に構築された他方の通気経路については、その配置構成や形状及び大きさ等が、例えばエンジンやスロットルボディの種類や形式等に応じて設定されるため、特に図示することが省略されている。   Here, with regard to one ventilation path constructed in one ventilation system 4 (engine) and the other ventilation path constructed in the other ventilation system 6 (throttle body), the arrangement configuration, shape, and size thereof are arranged. Are set according to, for example, the type and type of the engine and the throttle body, and are not particularly shown.

また、ジョイント部材2の固定構造2aについては、一方の通気系4(エンジン)の被固定部4pの形状や大きさ等に応じて設計されるため、ここでは特に限定しないが、図面には一例として、平坦面状の被固定部4pに対して固定可能な形状を成す固定構造2aが示されている。なお、固定構造2aを被固定部4pに固定する方法としては、例えば、接着、溶接、ネジ止め等の各種方法を適用することができるため、ここでは特に限定しないが、図面には一例として、固定構造2aに穿孔された固定用孔2hを通してボルト10を被固定部4pに締結させることで、固定構造2aを被固定部4pに固定する方法が示されている。   Further, the fixing structure 2a of the joint member 2 is designed according to the shape and size of the fixed portion 4p of the one ventilation system 4 (engine), and is not particularly limited here. As shown, a fixing structure 2a having a shape that can be fixed to a fixed portion 4p having a flat surface shape is shown. As a method for fixing the fixing structure 2a to the fixed portion 4p, for example, various methods such as adhesion, welding, and screwing can be applied. A method of fixing the fixing structure 2a to the fixed part 4p by fastening the bolt 10 to the fixed part 4p through the fixing hole 2h drilled in the fixing structure 2a is shown.

このようなジョイント部材2において、弾性を有する連結構造2bは、例えばゴム材料で中空円環状に成形され、これがジョイント本体2sに隙間無く固定(一体化)されている。なお、ゴム製の連結構造2bをジョイント本体2sに固定(一体化)する方法としては、例えば、接着、加硫、ネジ止め等の各種方法を適用することができるため、ここでは特に限定しない。要するに、ゴム製の連結構造2bをジョイント本体2sに隙間無く固定(一体化)できる方法であればよい。なお、ジョイント本体2sの材質については、例えば耐圧性や耐熱性などに優れたものであれば、金属材料や樹脂材料などを任意に適用することが可能である。   In such a joint member 2, the connecting structure 2 b having elasticity is formed, for example, with a rubber material into a hollow annular shape, and is fixed (integrated) to the joint body 2 s without a gap. In addition, as a method of fixing (integrating) the rubber connection structure 2b to the joint body 2s, for example, various methods such as adhesion, vulcanization, and screwing can be applied. In short, any method can be used as long as the coupling structure 2b made of rubber can be fixed (integrated) to the joint body 2s without a gap. In addition, as for the material of the joint body 2s, for example, a metal material or a resin material can be arbitrarily applied as long as it has excellent pressure resistance, heat resistance, and the like.

また、中空円環状の連結構造2bには、その外周面において、その一部を周方向に沿って連続して凹状に窪ませたバンド取付部2dが設けられており、ここに、当該連結構造2bを他方の通気系6(スロットルボディ)の被連結部6pに連結させる際に用いる締付部材8が取り付けられるようになっている。なお、締付部材8としては、例えば、クランプネジ8sを締め込むことで縮径可能なクランプバンドを適用すればよい。   The hollow annular coupling structure 2b is provided with a band mounting portion 2d having a part thereof continuously depressed along the circumferential direction on the outer circumferential surface thereof. A fastening member 8 used for connecting 2b to the connected portion 6p of the other ventilation system 6 (throttle body) is attached. As the tightening member 8, for example, a clamp band whose diameter can be reduced by tightening the clamp screw 8s may be applied.

更に、中空円環状の連結構造2bには、その内周面において、その一部を周方向に沿って連続して凸状に突出させた嵌合用凸部2eと、この嵌合用凸部2eに沿って隣接して平行に設けられ、その一部を周方向に沿って連続して凸状に突出させた密封用凸部2fとがそれぞれ少なくとも1つずつ設けられている。図面では一例として、連結構造2bの内周面に嵌合用凸部2eと密封用凸部2fが1つずつ設けられている。この場合、密封用凸部2fは、通気方向に沿って嵌合用凸部2eよりも下流側に設けることが好ましい。   Further, the hollow annular coupling structure 2b includes a fitting convex portion 2e having a part protruding continuously along the circumferential direction on the inner peripheral surface thereof, and the fitting convex portion 2e. And at least one sealing convex portion 2f that is provided in parallel and adjacent to each other, and a portion of which is continuously protruded along the circumferential direction. In the drawing, as an example, one fitting convex portion 2e and one sealing convex portion 2f are provided on the inner peripheral surface of the connecting structure 2b. In this case, the sealing convex portion 2f is preferably provided on the downstream side of the fitting convex portion 2e along the ventilation direction.

ここで、中空円環状の連結構造2bにおいて、嵌合用凸部2e及び密封用凸部2fは、締付部材8(クランプバンド)に対向した部位であって、かつ、当該締付部材8(クランプバンド)の締付力が直接作用する部位に位置付けることが好ましい。この場合、かかる位置付けを満足させるためには、バンド取付部2dに締付部材8(クランプバンド)が取り付けられた状態において、その内径側に位置する部位に、嵌合用凸部2e及び密封用凸部2fを設ければよい。   Here, in the hollow annular connecting structure 2b, the fitting convex portion 2e and the sealing convex portion 2f are portions facing the tightening member 8 (clamp band) and the tightening member 8 (clamp). It is preferable that the band is positioned at a portion where the tightening force directly acts. In this case, in order to satisfy such positioning, in the state where the fastening member 8 (clamp band) is attached to the band attaching portion 2d, the fitting convex portion 2e and the sealing convex portion are formed on the portion located on the inner diameter side. What is necessary is just to provide the part 2f.

一方、かかる連結構造2bが連結される他方の通気系6(スロットルボディ)において、被連結部6pは、中空円環状の連結構造2bに挿入(内嵌、圧入)可能な中空円筒状を成しており、その外周面6sには、その一部を周方向に沿って連続して凹状に窪ませた環状凹部6gが設けられている。この場合、環状凹部6gは、上記した連結構造2bの嵌合用凸部2eが隙間無く嵌合(密接)可能な輪郭を成すように形成することが好ましい。   On the other hand, in the other ventilation system 6 (throttle body) to which the connecting structure 2b is connected, the connected portion 6p has a hollow cylindrical shape that can be inserted (internally fitted or press-fitted) into the hollow annular connecting structure 2b. The outer peripheral surface 6s is provided with an annular recess 6g, a part of which is continuously recessed in the circumferential direction. In this case, the annular recess 6g is preferably formed so as to have a contour that allows the fitting protrusion 2e of the connecting structure 2b to be fitted (closely) without a gap.

このような構成において、一方の通気系4(エンジン)の被固定部4pに対してジョイント部材2の固定構造2aを固定すると共に、中空円環状の連結構造2bに対して他方の通気系6(スロットルボディ)の被連結部6pを挿入(内嵌、圧入)する。なお、連結構造2bには、その一部を被連結部6p方向に突出させた一対の位置決め用突起2gが設けられているため、挿入(内嵌、圧入)時における連結構造2bに対する被連結部6pの位置決め精度を常に一定に維持することができる。   In such a configuration, the fixing structure 2a of the joint member 2 is fixed to the fixed portion 4p of one ventilation system 4 (engine), and the other ventilation system 6 ( The connected portion 6p of the throttle body) is inserted (internal fitting, press fitting). Since the connection structure 2b is provided with a pair of positioning protrusions 2g that partially project in the direction of the connected portion 6p, the connected portion to the connecting structure 2b at the time of insertion (internal fitting, press-fitting). The positioning accuracy of 6p can always be kept constant.

続いて、当該連結構造2bのバンド取付部2dに締付部材8(クランプバンド)をセットして、クランプネジ8sを締め込んで締付部材8(クランプバンド)を縮径させる。このとき、締付部材8(クランプバンド)の縮径に伴ってゴム製の連結構造2bに作用する締付力により、当該連結構造2bを弾性変形させ(図2(b)参照)、これにより、他方の通気系6(スロットルボディ)の被連結部6pに圧接させて連結させる。   Subsequently, the tightening member 8 (clamp band) is set on the band attaching portion 2d of the connection structure 2b, and the clamp screw 8s is tightened to reduce the diameter of the tightening member 8 (clamp band). At this time, the connecting structure 2b is elastically deformed by a tightening force acting on the rubber connecting structure 2b as the tightening member 8 (clamp band) is reduced in diameter (see FIG. 2B). Then, the other ventilation system 6 (throttle body) is connected to the connected portion 6p by pressure contact.

この状態において、連結構造2bの嵌合用凸部2eが、被連結部6pの環状凹部6gに嵌合することで、連結構造2bを被連結部6pに対して抜け止めされた状態に維持すると共に、密封用凸部2fが、締付部材8(クランプバンド)の締付力によって弾性変形して押し潰され、被連結部6pの外周面6sに密着することで、連結構造2bと被連結部6pとの間を密封状態に維持する。   In this state, the fitting convex portion 2e of the coupling structure 2b is fitted into the annular recess 6g of the coupled portion 6p, so that the coupling structure 2b is maintained in a state of being prevented from being detached from the coupled portion 6p. The sealing convex portion 2f is elastically deformed and crushed by the tightening force of the tightening member 8 (clamp band), and is brought into close contact with the outer peripheral surface 6s of the coupled portion 6p, thereby connecting the coupling structure 2b and the coupled portion. Keep sealed between 6p.

このとき、他方の通気系6(スロットルボディ)からジョイント部材2を介して一方の通気系4(エンジン)に至る一連の通気経路が構築され、かかる通気経路において、一方の通気系4(エンジン)が空気を吸い込む力を利用することで、空気が、他方の通気系6(スロットルボディ)からジョイント部材2を通って、一方の通気系4(エンジン)に効率よく送り込まれる。   At this time, a series of ventilation paths from the other ventilation system 6 (throttle body) to the one ventilation system 4 (engine) via the joint member 2 is constructed, and in this ventilation path, one ventilation system 4 (engine) By using the force that sucks air, air is efficiently sent from the other ventilation system 6 (throttle body) through the joint member 2 to the one ventilation system 4 (engine).

また、本実施形態のジョイント部材2は、キャブレター機能を搭載可能に構成されており、このため、ジョイント部材2には、他方の通気系6(スロットルボディ)からジョイント部材2を介して一方の通気系4(エンジン)に至る一連の通気経路に向けて、気化燃料(ガソリン、軽油等)を噴射するインジェクタ12をセットして固定するための固定構造14が構築されている。図1(a)には、固定構造14の一例が示されており、かかる固定構造14には、連通経路2cに連通した噴射経路14sが形成されていると共に、インジェクタ12をセット可能なセット部14aと、セット部14aにセットされたインジェクタ12をジョイント部材2(具体的には、ジョイント本体2s)に固定する固定部14bとが設けられている。   In addition, the joint member 2 of the present embodiment is configured so as to be capable of mounting a carburetor function. For this reason, one air flow from the other ventilation system 6 (throttle body) to the joint member 2 via the joint member 2 is provided. A fixing structure 14 for setting and fixing an injector 12 for injecting vaporized fuel (gasoline, light oil, etc.) is constructed toward a series of ventilation paths leading to the system 4 (engine). FIG. 1A shows an example of a fixing structure 14, and an injection path 14 s communicating with the communication path 2 c is formed in the fixing structure 14, and a set portion in which the injector 12 can be set. 14a and a fixing portion 14b for fixing the injector 12 set in the setting portion 14a to the joint member 2 (specifically, the joint body 2s) are provided.

この場合、インジェクタ12をセット部14aにセットした後、当該インジェクタ12を保持する保持部材16を固定部14bに掛け渡した状態で、当該保持部材16を固定部14bに固定することで、インジェクタ12をジョイント部材2(ジョイント本体2s)に固定することができる。なお、インジェクタ12をジョイント部材2(ジョイント本体2s)に固定する方法としては、保持部材16を固定部14bに対して、例えば、接着、溶接、ネジ止め等の各種方法を適用することができるため、ここでは特に限定しないが、図面には一例として、固定部14bに形成された固定用ネジ穴14hにボルト18を締結させることで、保持部材16を固定部14bに固定する方法が示されている。   In this case, after setting the injector 12 to the setting portion 14a, the holding member 16 holding the injector 12 is stretched over the fixing portion 14b, and the holding member 16 is fixed to the fixing portion 14b. Can be fixed to the joint member 2 (joint body 2s). As a method of fixing the injector 12 to the joint member 2 (joint body 2s), various methods such as adhesion, welding, and screwing can be applied to the holding member 16 to the fixing portion 14b. Although not specifically limited here, as an example, the drawing shows a method of fixing the holding member 16 to the fixing portion 14b by fastening the bolt 18 to the fixing screw hole 14h formed in the fixing portion 14b. Yes.

以上、本実施形態によれば、他方の通気系6(スロットルボディ)の被連結部6pに対して締付部材8(クランプバンド)によって連結構造2bを連結させる際に、嵌合用凸部2eが被連結部6pの環状凹部6gに嵌合することで、連結構造2bを被連結部6pに対して抜け止めされた状態に維持することができると共に、密封用凸部2fが、締付部材8(クランプバンド)の締付力によって弾性変形して押し潰され、被連結部6pの外周面6sに密着することで、連結構造2bと被連結部6pとの間を密封状態に維持することができる。   As described above, according to the present embodiment, when the connecting structure 2b is connected to the connected portion 6p of the other ventilation system 6 (throttle body) by the fastening member 8 (clamp band), the fitting convex portion 2e is formed. By fitting into the annular recess 6g of the connected portion 6p, the connecting structure 2b can be maintained in a state of being prevented from coming off from the connected portion 6p, and the sealing convex portion 2f is provided with the tightening member 8f. By being elastically deformed and crushed by the clamping force of the (clamp band) and closely contacting the outer peripheral surface 6s of the connected portion 6p, the connection structure 2b and the connected portion 6p can be maintained in a sealed state. it can.

即ち、本実施形態によれば、他方の通気系6(スロットルボディ)の被連結部6pに対する連結構造2bの連結に際し、その連結された状態における優れた抜け止め効果を発揮しつつ、かつ、高い密封性を維持することが可能なジョイント部材2を実現することができるため、上記した通気経路が、空気(エア)からの高圧高速作用にさらされた状態にある環境下でも、その高圧高速作用の程度(大きさ)の影響を受けることなく、当該通気経路の密封性を一定に維持することができる。これにより、通気経路から空気(エア)が外部に漏洩してしまうような事態を未然に防止することができる。   That is, according to the present embodiment, when connecting the connecting structure 2b to the connected portion 6p of the other ventilation system 6 (throttle body), an excellent retaining effect in the connected state is exhibited and high. Since the joint member 2 capable of maintaining the sealing performance can be realized, the high-pressure high-speed action can be achieved even in an environment where the above-described ventilation path is exposed to the high-pressure high-speed action from the air (air). Without being affected by the degree (size), the sealing performance of the ventilation path can be maintained constant. Thereby, the situation where air (air) leaks outside from a ventilation path can be prevented beforehand.

なお、上記した実施形態では、嵌合用凸部2e及び密封用凸部2fの大きさや形状について特に言及しなかったが、これは、被連結部6pの環状凹部6g及び外周面6sの大きさや形状に対応して設定されるため、ここでは特に限定しない。この場合、嵌合用凸部2e及び密封用凸部2fの形状については、図面では一例として、断面円弧状のものが示されているが、これに限定されることはなく、これ以外に例えば、断面矩形状や断面三角形状など各種の形状を適用することができる。   In the embodiment described above, the size and shape of the fitting convex portion 2e and the sealing convex portion 2f are not particularly mentioned, but this is the size and shape of the annular concave portion 6g and the outer peripheral surface 6s of the coupled portion 6p. Therefore, there is no particular limitation here. In this case, the shape of the fitting convex portion 2e and the sealing convex portion 2f is shown as an example of a cross-sectional arc shape in the drawings, but is not limited to this, other than this, for example, Various shapes such as a rectangular cross section and a triangular cross section can be applied.

また、上記した実施形態では、嵌合用凸部2eと密封用凸部2fを1つずつ設けて、密封用凸部2fを、通気方向に沿って嵌合用凸部2eよりも下流側に配置した構成が示されているが、これに限定されることはなく、これ以外に例えば、嵌合用凸部2eの下流側に複数の密封用凸部2fを設けるように構成してもよいし、或いは、嵌合用凸部2eの上流側に、1又は複数の密封用凸部2fを設けるように構成してもよい。この場合、嵌合用凸部2eの個数も、上記した実施形態のように1個に限定されることはなく、複数の嵌合用凸部2eを設けるように構成することができる。なお、複数の嵌合用凸部2eを設ける場合、これに対応させて、被連結部6pの環状凹部6gを同数設ければよい。   Further, in the above-described embodiment, the fitting convex portion 2e and the sealing convex portion 2f are provided one by one, and the sealing convex portion 2f is disposed downstream of the fitting convex portion 2e along the ventilation direction. Although the configuration is shown, the present invention is not limited to this. For example, a plurality of sealing convex portions 2f may be provided on the downstream side of the fitting convex portion 2e, or Alternatively, one or a plurality of sealing convex portions 2f may be provided on the upstream side of the fitting convex portion 2e. In this case, the number of fitting projections 2e is not limited to one as in the above-described embodiment, and a plurality of fitting projections 2e can be provided. In addition, when providing the some convex part 2e for fitting, what is necessary is just to provide the same number of the annular recessed parts 6g of the to-be-connected part 6p corresponding to this.

また、上記した実施形態では、中空円環状の連結構造2bの内周面において、その一部を周方向に沿って連続して凸状に突出させた嵌合用凸部2eを想定して説明したが、嵌合用凸部2eは、必ずしも周方向に連続したものである必要はなく、例えば周方向に沿って断続的(間欠的)に設けるようにしてもよい。   Moreover, in the above-described embodiment, the description has been made on the assumption that the fitting convex portion 2e is a convex portion that continuously protrudes along the circumferential direction on the inner circumferential surface of the hollow annular coupling structure 2b. However, the fitting convex part 2e is not necessarily continuous in the circumferential direction, and may be provided intermittently (intermittently) along the circumferential direction, for example.

また、上記した実施形態では、例えば自動車やバイク等の各種車両の内燃機関における吸気経路を想定しているが、これにより本願発明の技術的範囲が限定されることはなく、例えば自動車やバイク等の各種車両の排気経路に対して、上記した実施形態に係るジョイント部材2を適用することもできる。この場合、ジョイント部材2は、一方の通気系としてのエンジンと、他方の通気系としての例えば排気マフラとの間に介在させ、相互に連結させればよい。   Further, in the above-described embodiment, an intake path in an internal combustion engine of various vehicles such as automobiles and motorcycles is assumed, but this does not limit the technical scope of the present invention, and examples thereof include automobiles and motorcycles. The joint member 2 according to the above-described embodiment can also be applied to the exhaust routes of various vehicles. In this case, the joint member 2 may be interposed between the engine as one ventilation system and, for example, an exhaust muffler as the other ventilation system, and connected to each other.

2 ジョイント部材
2a 固定構造
2b 連結構造
2c 連通経路
2d バンド取付部
2e 嵌合用凸部
2f 密封用凸部
4 一方の通気系(エンジン)
6 他方の通気系(スロットルボディ)
6g 環状凹部
8 締付部材(クランプバンド)
2 Joint member 2a Fixing structure 2b Connection structure 2c Communication path 2d Band mounting portion 2e Convex convex portion 2f Sealing convex portion 4 One ventilation system (engine)
6 The other ventilation system (throttle body)
6g Annular recess 8 Tightening member (clamp band)

Claims (2)

一方から他方に通気させる通気経路において、一方の通気経路が構築された一方の通気系と、他方の通気経路が構築された他方の通気系とを相互に連結させる中空のジョイント部材であって、
前記一方の通気系に設けられた被固定部に対して固定可能な固定構造と、
前記他方の通気系に設けられた被連結部に対して締付部材によって連結可能な弾性を有する連結構造と、
前記固定構造を一方の通気系の被固定部に固定すると共に、前記連結構造を他方の通気系の被連結部に連結させた状態で、前記一方の通気経路と前記他方の通気経路とを相互に連通させる連通経路とを備え、
前記連結構造には、その一部を凸状に突出させた嵌合用凸部と、この嵌合用凸部に軸方向で隣接して設けられ、その一部を周方向に沿って連続して嵌合用凸部と共に軸中心径方向に向かって凸状に突出させた密封用凸部とがそれぞれ少なくとも1つずつ設けられており、
前記締付部材によって連結構造を他方の通気系の被連結部に連結させた状態において、
前記嵌合用凸部が、前記被連結部の一部を凹状に窪ませた環状凹部に嵌合することで、連結構造を被連結部に対して抜け止めされた状態に維持すると共に、
前記密封用凸部が、締付部材の締付力によって弾性変形して押し潰され、前記被連結部の周面に密着することで、連結構造と被連結部との間を密封状態に維持しており、
前記連結構造には、その一部を被連結部方向に突出させた一対の位置決め用突起が設けられ、
前記密封用凸部は、前記嵌合用凸部よりも凸形状を小さくし、通気方向に沿って前記嵌合用凸部よりも下流側に設けられ、
前記嵌合用凸部及び前記密封用凸部は、締付部材の配設領域の直下にて、当該締付部材の締付力が直接作用する部位に位置付けられていることを特徴とするジョイント部材。
A hollow joint member for interconnecting one ventilation system in which one ventilation path is constructed and the other ventilation system in which the other ventilation path is constructed in the ventilation path for venting from one to the other,
A fixed structure fixable relative to the fixed portion provided in the one of the ventilation system,
A connecting structure with a connectable resilient by member clamping against the connected portion provided on the other of the ventilation system,
The fixing structure is fixed to the fixed portion of one of the ventilation system, in a state of being connected to the coupled portion of the other vent systems the connection structure, cross the the one ventilation channel and the other gas passage And a communication path for communicating with
The coupling structure is provided with a fitting convex part protruding partly in a convex shape, and adjacent to the fitting convex part in the axial direction, and a part thereof is continuously fitted along the circumferential direction. And at least one sealing convex portion protruding in a convex shape toward the axial center radial direction together with the joint convex portion ,
In a state where the connection structure is connected to the connected portion of the other ventilation system by the fastening member,
The fitting convex portion, said by engaging the annular recess is recessed partially concave of connected portions, while maintaining the coupling structure to stop state omission against the connected portion,
Maintaining the sealing protrusions, crushed elastically deformed by the tightening force of the tightening member, said by close contact with the circumferential surface of the connecting portion, between the connecting structure and the connecting portion to the sealed And
The connection structure is provided with a pair of positioning protrusions, a part of which protrudes in the direction of the connected portion,
The sealing convex portion has a convex shape smaller than the fitting convex portion, and is provided downstream of the fitting convex portion along the ventilation direction,
The fitting convex portion and the sealing projection is just below the arrangement region of the clamping member, the joint member clamping force with the clamping member is characterized that you have positioned the site to act directly .
前記一方の通気系は、各種車両のエンジンであり、前記他方の通気系は、当該エンジンに空気を送り出すスロットルボディであり、
前記エンジンに設けられた被固定部に対して固定構造を固定すると共に、前記締付部材によって連結構造をスロットルボディの被連結部に連結させた状態において、
前記スロットルボディからジョイント部材を介してエンジンに至る一連の通気経路が構築され、かかる通気経路において、空気がスロットルボディからジョイント部材を通ってエンジンに送り込まれることを特徴とする請求項1に記載のジョイント部材。
The one ventilation system is an engine of various vehicles, the other vent systems are throttle body for feeding air to the engine,
It fixes the fixed structure with respect to the fixed portion provided in the engine, in a state of being connected to the coupling structure to the coupled portion of the throttle body by the fastening member,
The series of ventilation paths from the throttle body to the engine via the joint member is constructed, and air is sent from the throttle body to the engine through the joint member in the ventilation path. Joint member.
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JPS58186160U (en) * 1982-06-07 1983-12-10 エヌオーケー株式会社 aisle joint
JPS59103858U (en) * 1982-12-28 1984-07-12 日野自動車株式会社 Intake manifold vibration isolation structure
JPS6249660U (en) * 1985-09-17 1987-03-27
JP2002221036A (en) * 2001-01-26 2002-08-09 Fuji Heavy Ind Ltd Intake system for engine

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