JP4721438B2 - Outboard motor - Google Patents

Outboard motor Download PDF

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Publication number
JP4721438B2
JP4721438B2 JP2006127667A JP2006127667A JP4721438B2 JP 4721438 B2 JP4721438 B2 JP 4721438B2 JP 2006127667 A JP2006127667 A JP 2006127667A JP 2006127667 A JP2006127667 A JP 2006127667A JP 4721438 B2 JP4721438 B2 JP 4721438B2
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bracket
engine
cover
plate
outboard motor
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JP2007297003A (en
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誠 矢▲崎▼
邦弘 吉津
木村　　亨
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2006127667A priority Critical patent/JP4721438B2/en
Priority to CA2584386A priority patent/CA2584386C/en
Priority to US11/785,632 priority patent/US7621791B2/en
Priority to EP07008335A priority patent/EP1852589B1/en
Priority to CN2007101077782A priority patent/CN101066703B/en
Priority to CN2008101731935A priority patent/CN101412438B/en
Publication of JP2007297003A publication Critical patent/JP2007297003A/en
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Description

本発明は、エンジンルームの下半部を構成する左右のカバー体を、エンジン側に取り付け、支持するようにした船外機に関するものである。   The present invention relates to an outboard motor in which left and right cover bodies constituting the lower half of an engine room are attached to and supported on the engine side.

近年、エンジンルーム下半部分を左右の舷側を構成する樹脂製の左右のカバー体で構成した船外機が知られている（例えば、特許文献１、特許文献２参照。）。
特開２００４−３３８４６３号公報 特開２００１−１９９３９３号公報 2. Description of the Related Art In recent years, outboard motors are known in which the lower half of an engine room is configured with resin left and right cover bodies that form the left and right sides (see, for example, Patent Document 1 and Patent Document 2).
JP 2004-338463 A JP 2001-199393 A

特許文献１の技術は、左右のカバー半体５１Ｌ，５１Ｒを直接突き合わせて、ボルト５７で固定している。
特許文献２の技術は、アンダーカバー１４をエンジン本体２２に固定した構成で、アンダーカバーを構成する左右の半体１７０，１７１は互いに突き合わせた構造である。
この従来技術では、特許文献１の技術も特許文献２の技術も、ともに左右のカバーの合わせを確実にするため、船外機本体の固定部を２つのカバー体の合せ部に近接させる必要があり、実際には共通のボルトで結合している。 In the technique of Patent Document 1, the left and right cover halves 51L and 51R are directly butted and fixed with bolts 57.
The technique of Patent Document 2 has a structure in which the under cover 14 is fixed to the engine body 22, and the left and right halves 170 and 171 constituting the under cover are abutted against each other.
In this prior art, both the technique of Patent Document 1 and the technique of Patent Document 2 need to bring the fixing part of the outboard motor main body close to the joining part of the two cover bodies in order to ensure the alignment of the left and right covers. In fact, they are connected with common bolts.

以上の従来技術では、左右のカバー体の一方を外してメンテナンス作業を行う場合、他方のカバーも固定が不安定な状態となる。
従って再組付に際しては、左右のカバーの位置合わせなどに手間がかかり、作業性が悪いなどの不都合がある。 In the above prior art, when one of the left and right cover bodies is removed and maintenance work is performed, the other cover is also in an unstable state.
Accordingly, when reassembling, there are inconveniences such as time-consuming alignment of the left and right covers and poor workability.

ところで、船外機にはエンジンの排気の一部を外部へ排出する副排気口が設置されており、また、エンジンの冷却水の一部をエンジンルーム外部に排出する検水口が設置されている。
副排気口のシール構造は左右の舷側カバーの一方、又は合せ部の双方に取り付けており、カバー体を外す場合には、シール部材を取り外す必要があり、取り外し作業が面倒であり、また再組付作業も面倒であり、作業性が悪い。
また検水口も左右の舷側カバーに直接接続管を支持させているので、カバー体を外す場合には、検水用のチューブを一々取り外す必要があり、これ亦、取り外し作業が面倒であり、また再組付作業も面倒であり、作業性が悪い。
本発明は、以上を解決すべくなされたものである。 By the way, the outboard motor is provided with a sub-exhaust port that discharges a part of the engine exhaust to the outside, and a water inspection port that discharges a part of the engine cooling water to the outside of the engine room. .
The seal structure of the sub-exhaust port is attached to one of the left and right side covers or the mating part. When removing the cover body, it is necessary to remove the seal member, which is cumbersome to remove and requires reassembly. Attaching work is also troublesome and workability is poor.
In addition, since the water inspection port directly supports the connection pipes on the left and right side covers, when removing the cover body, it is necessary to remove the water inspection tubes one by one, which is troublesome to remove. The reassembly work is troublesome and the workability is poor.
The present invention has been made to solve the above problems.

本発明は、船外機において、左右の舷側を構成するカバー体の一方を外しても、他方のカバー体に影響することなくカバー体の着脱を可能とし、分解、再組立作業が容易であり、また、副排気口や検水口に阻害されることなく、分解、再組立が容易でもある船外機を提供することを課題とする。   In the outboard motor, even if one of the cover bodies constituting the left and right sides is removed, the cover body can be attached and detached without affecting the other cover body, and disassembly and reassembly work is easy. Another object of the present invention is to provide an outboard motor that can be easily disassembled and reassembled without being obstructed by the auxiliary exhaust port or the water inspection port.

請求項１に係る発明は、エンジンを収容するエンジンルームの下半部を、左右舷側を構成する左右の樹脂製のカバー半体を組付一体化してカバー組立体で構成した船外機において、エンジンの後半部の左右に取付座を設け、エンジンと左右のカバー半体を結合するブラケットを有し、該ブラケットは本体が板状であり、このブラケットの板状本体の左右に取付アームを有し、該左右の取付アームの先端部とエンジンの後半部の左右に取付座とをボルトを介して結合するとともに、ブラケットは、板状本体の上辺を除いた外周に凹溝部を有し、左右のカバー半体の後半部には、突き合わせる接合端縁部の上部に向かい合うように凹状の係合部を有し、凹状の係合部の端縁を、前記ブラケットの板状本体外周の前記凹溝部に挟み込んで係合し、左右のカバー半体の一部には、向かい合い、前後に重なり合う結合座部を備え、前後に重なり合う結合座部には、テーパー孔を備え、ブラケットの板状本体下端部に設けた通し孔から前後に重なり合う結合座部に設けたテーパー孔を介して該結合座部を締め付けることで、左右のカバー半体の前後の結合座部をブラケットの板状本体に締結、結合しつつ、左右のカバー半体を相寄る方向に引っ張るようにしたことを特徴とする。 The invention according to claim 1 is an outboard motor comprising a cover assembly in which the lower half of the engine room that houses the engine is assembled and integrated with the left and right resin cover halves constituting the left and right sides. Mounting seats are provided on the left and right sides of the rear half of the engine, and there are brackets that connect the engine and the left and right cover halves. In addition, the front end of the left and right mounting arms and the left and right mounting seats of the engine are connected via bolts, and the bracket has a concave groove on the outer periphery excluding the upper side of the plate-shaped body. The half of the cover half has a concave engaging portion so as to face the upper part of the joining end edge to be abutted, and the edge of the concave engaging portion is connected to the outer periphery of the plate-shaped main body of the bracket. Engage and engage with the groove, left A part of the cover half is provided with a coupling seat portion facing each other and overlapping in the front and rear direction, and the coupling seat portion overlapping in the front and rear direction is provided with a taper hole, and is provided in the front and rear direction from the through hole provided in the lower end portion of the plate-like body of the bracket. The left and right cover halves are fastened and coupled to the plate-like main body of the bracket by fastening the joint seats through the tapered holes provided in the overlapping joint seats, thereby fastening the front and rear joint seats to the plate-like body of the bracket. It is characterized by pulling in the direction of approaching .

請求項２に係る発明は、請求項１において、エンジンの排気の一部をエンジンルーム外部に排出する副排気管を通す副排気口をブラケットに設けたことを特徴とする。 According to a second aspect of the present invention, in the first aspect, the bracket is provided with a sub exhaust port through which a sub exhaust pipe for discharging a part of engine exhaust to the outside of the engine room is provided.

請求項３に係る発明は、請求項１において、エンジンの冷却水の一部をエンジンルーム外部に排出する検水口をブラケットに設けたことを特徴とする。 The invention according to claim 3 is characterized in that, in claim 1, a water inspection port for discharging a part of engine cooling water to the outside of the engine room is provided in the bracket.

請求項４に係る発明は、請求項１において、ブラケットの板状本体に結合座部を、締結、結合する部材は段付きボルトであり、前後に重なり合う結合座部に設けたテーパー孔は、段付きボルトのネジ部の径よりも大径で、大径軸部を密に通す径であり、テーパー孔に段付きボルトを通し、大径軸部を該テーパー孔の通孔を通すことで左右のカバー半体を相寄る方向に引っ張るようにしたことを特徴とする。 According to a fourth aspect of the present invention, in the first aspect of the present invention, the member for fastening and coupling the coupling seat portion to the plate-like main body of the bracket is a stepped bolt, and the tapered hole provided in the coupling seat portion overlapping in the front and rear is a stepped bolt. The diameter is larger than the diameter of the threaded part of the bolt, and the diameter of the large-diameter shaft part is tightly passed. The stepped bolt is passed through the taper hole, and the large-diameter shaft part is passed through the taper hole. The cover half is pulled in the direction of closeness.

請求項１に係る発明では、左右のカバー半体は、左右個別にカバー半体をブラケットから外し、また組み付けることができ、メンテナンス時等におけるカバー半体の分解、再組付が従来に比し画期的に容易化し、作業性も著しく向上する。
そして、以上をブラケットを用意し、ブラケットをエンジンの後部等に固着し、これに左右のカバー半体の接合後縁部を突き合わせて個別にボルト止め等すれば良く、構造も簡素であり、カバー半体の突き合わせ、接合構造も簡素化する。
また、左右のカバーのブラケットへの接合部は、溝に係合して確実に取り付け、支持され、また溝にガイドされてブラケットに容易に接合させることができ、また、溝へのガイド作用により、左右のカバー体の組付作業が容易化する。
さらに、ブラケットに左右のカバー半体の後半部を各々ブラケットに固定するので、左右のカバー体は、左右個別にカバー体をブラケットから外し、また組み付けることができ、メンテナンス時等におけるカバー体の分解、再組付が従来に比し画期的に容易化し、作業性も著しく向上する。
そして、以上をブラケットを用意し、ブラケットをエンジンの後部等に固着し、これに左右のカバー体の接合後縁部を突き合わせて個別にボルト止め等すれば良く、構造も簡素であり、カバー体の突き合わせ、接合構造も簡素化する。
さらにまた、左右のカバー半体の一部には前後に重なり合う結合座部を備え、前後に重なり合う結合座部には相互に重なり合い、左右方向に位相がずれたテーパー孔を備え、テーパー孔にボルトを通してブラケットにラップ部を締め付けることで、左右のカバー体を相寄る方向に引っ張るようにしたので、左右のカバー半体のに設けたテーパー孔を重合してボルトでブラケット側に締め付けるので、楔作用で左右のカバーは重合部で相寄る方向に引張され、ブラケットへの取り付け、支持が簡単化し、確実化する。 In the invention according to claim 1 , the left and right cover halves can be detached from the bracket and assembled separately on the left and right sides, and the cover half can be disassembled and reassembled during maintenance, etc. It will be epoch-making and workability will be significantly improved.
Then, the bracket is prepared, the bracket is fixed to the rear part of the engine, etc., and the joined rear edges of the left and right cover halves are brought into contact with each other and bolted individually. The structure is simple and the cover It also simplifies the half- butting and joining structures.
Also, the joint of the left and right covers to the bracket can be securely attached and supported by engaging with the groove, and can be easily joined to the bracket by being guided by the groove. Assembling work of the left and right cover bodies is facilitated.
In addition, since the rear half of the left and right cover halves are fixed to the bracket, the left and right cover bodies can be detached from the bracket and assembled separately. As a result, reassembly is remarkably facilitated and workability is significantly improved.
Then, the bracket is prepared as above, the bracket is fixed to the rear part of the engine, etc., and the joining rear edge part of the left and right cover bodies is abutted to this and bolted individually. The structure is simple and the cover body The matching and joining structure is simplified.
Furthermore, part of the left and right cover halves are provided with joint seats that overlap in the front and rear, the joint seats that overlap in the front and rear are provided with taper holes that are overlapped with each other and out of phase in the left and right directions, and the taper holes are bolted. Since the left and right cover bodies are pulled in the direction close to each other by tightening the lap part to the bracket through, the taper holes provided in the left and right cover halves are overlapped and tightened to the bracket side with bolts, so that the wedge action The left and right covers are pulled in the direction where they come together at the overlap, simplifying and securing the mounting and support to the bracket.

請求項２に係る発明では、請求項１において、エンジンの排気の一部をエンジンルーム外部に排出する副排気管を通す副排気口をブラケットに設けたので、副排気口のシール構造部を左右のカバー体の一方に設ける必要が無く、カバー体を外す場合に、副排気口部材やシール部材を取り外す必要がなく、カバー体の取り外し時には、副排気口部材やシール部材の取り外し作業が不要となり、また再組付作業においては、カバー体からの副排気口やシール部材の取り付け作業を必要とせず、副排気口、シール部材の脱着作業が極めて容易であり、作業性が極めて良好である。 In the invention according to claim 2, in claim 1, since the sub exhaust port through which the sub exhaust pipe for discharging a part of the exhaust of the engine to the outside of the engine room is provided in the bracket, the seal structure portion of the sub exhaust port is left and right. There is no need to install the cover body on one side, and when removing the cover body, there is no need to remove the auxiliary exhaust port member or seal member. Moreover, in the reassembly work, the auxiliary exhaust port and the seal member from the cover body are not required to be attached, and the auxiliary exhaust port and the seal member can be easily attached and detached, and the workability is very good.

請求項３に係る発明では、請求項１において、エンジンの冷却水の一部をエンジンルーム外部に排出する検水口をブラケットに設けたので、検水口を左右のカバー体に直接接続管を支持させる従来構造のように、カバー体を外す場合には、検水用のチューブを一々取り外す必要が一切無く、カバー体の取り外し時には検水用のチューブを一々取り外す必要が無いことから、カバー体の取り外し、組み付けに際し、カバー体の取り外し、再組み付け作業が極めて容易化し、作業性が極めて良好である。 In the invention according to claim 3, in claim 1, since the water inspection port for discharging a part of the engine cooling water to the outside of the engine room is provided in the bracket, the connection port is directly supported by the right and left cover bodies. As with the conventional structure, when removing the cover body, it is not necessary to remove the test water tubes one by one, and it is not necessary to remove the test water tubes one by one when removing the cover body. When assembling, the cover body can be removed and reassembled very easily, and the workability is very good.

請求項４に係る発明では、請求項１において、ブラケットの板状本体に結合座部を、締結、結合する部材は段付きボルトであり、前後に重なり合う結合座部に設けたテーパー孔は、段付きボルトのネジ部の径よりも大径で、大径軸部を密に通す径であり、テーパー孔に段付きボルトを通し、大径軸部を該テーパー孔の通孔を通すことで左右のカバー半体を相寄る方向に引っ張るようにした。 According to a fourth aspect of the present invention, in the first aspect, the member for fastening and coupling the coupling seat portion to the plate-like main body of the bracket is a stepped bolt, and the taper hole provided in the coupling seat portion overlapping in the front and rear is a stepped bolt. The diameter is larger than the diameter of the threaded part of the bolt, and the diameter of the large-diameter shaft part is tightly passed. The stepped bolt is passed through the taper hole, and the large-diameter shaft part is passed through the taper hole. The half of the cover was pulled in the direction of closeness.

本発明を実施するための最良の形態を添付図に基づいて以下に説明する。なお、図面は符号の向きに見るものとする。
図１は、本発明に係る船外機の側面図で、内部機構を破線で示した図、図２は、同船外機の外観後面図、図３は、船外機の下カバーの分解斜視図で、エンジン支持部材や前後のブラケット類を含む斜視図である。
これら図１、図２を参照して船外機の概略構成を説明する。図１及び他の図面において、Ｆｒは船外機の前方（推進方向前方）を、Ｒｒは後方を示す。 The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a side view of an outboard motor according to the present invention, a diagram showing an internal mechanism by a broken line, FIG. 2 is an external rear view of the outboard motor, and FIG. 3 is an exploded perspective view of a lower cover of the outboard motor. FIG. 3 is a perspective view including an engine support member and front and rear brackets.
The schematic configuration of the outboard motor will be described with reference to FIGS. In FIG. 1 and other drawings, Fr indicates the front of the outboard motor (forward in the propulsion direction), and Rr indicates the rear.

船外機１は図１の側面図及び図２の後面図でその外観は示されており、その外観構成は、最上部のエンジンカバー２、この下の下半部を構成する下カバー２０を備え、これらでエンジンルーム２ｉを構成し、下カバー２０の下部には下半部のエクステンションケース３が延出され、この下に最下部のギヤケース４が接合されており、これら船外機の外観を構成する。
図１の破線で示した構成を含んで船外機の構造を説明すると、上下のカバー２，２０内には、上部にエンジン５が下ケース内に配設されたマウントケース６（エンジン支持構造体）を介して内装、支持されており、エンジン５は、クランクシャフト縦置きの所謂バーチカルエンジンからなる複数気筒、例えば直列４気筒の４ストロークエンジンで構成されている。 The outer appearance of the outboard motor 1 is shown in the side view of FIG. 1 and the rear view of FIG. 2. The outer appearance of the outboard motor 1 includes the uppermost engine cover 2 and the lower cover 20 that constitutes the lower half of the engine cover 2. These comprise an engine room 2i, and a lower half extension case 3 is extended to the lower part of the lower cover 20, and a lowermost gear case 4 is joined to the lower case 20 so that the exterior of these outboard motors can be seen. Configure.
The structure of the outboard motor including the configuration shown by the broken line in FIG. 1 will be described. Inside the upper and lower covers 2, 20, a mount case 6 (engine support structure) in which the engine 5 is disposed in the upper case in the upper part. The engine 5 is composed of a plurality of cylinders, for example, an in-line four-cylinder four-stroke engine, which is a so-called vertical engine with a crankshaft installed vertically.

エンジン５は、前部のクランクケース５ａ、中間部のシリンダブロック５ｂ、最後部のシリンダヘッド５ｃ等からなり、シリンダヘッド５ｃから下方に導出された排気はマウントケース６内の排気通路及び下流の排気管７を通り、下カバー２０（カバー組立体）の下方の空間を通して下方のエクステンションケース３内を通り、ギヤケース４を通ってスクリュー１４の中央から主排気として水中に排出される。   The engine 5 includes a front crankcase 5a, an intermediate cylinder block 5b, a rearmost cylinder head 5c, and the like. The exhaust led downward from the cylinder head 5c is an exhaust passage in the mount case 6 and downstream exhaust. It passes through the pipe 7, passes through the space below the lower cover 20 (cover assembly), passes through the lower extension case 3, passes through the gear case 4, and is discharged into the water as the main exhaust from the center of the screw 14.

シリンダブロック５ｂ内には複数のシリンダ５ｄ…（…は複数を表す。以下同じ）を有し、シリンダヘッド５ｃ内には燃焼室５ｅ…を有する。
エンジン５のシリンダブロック５ｂの右側には、エンジンの点火装置の制御や燃料噴射装置の制御を行う基盤を含む電装品ボックス８が、また、これの前方でクランクケース５ａの右側方から前方にかけて吸気サイレンサ９が配設されており、エンジン５の上方には発電機（ＡＣＧ）１０が配設されている。 The cylinder block 5b has a plurality of cylinders 5d (... represents a plurality, the same applies hereinafter), and the cylinder head 5c has combustion chambers 5e.
On the right side of the cylinder block 5b of the engine 5, there is an electrical component box 8 including a base for controlling the engine ignition device and the fuel injection device. A silencer 9 is disposed, and a generator (ACG) 10 is disposed above the engine 5.

エンジン５のクランクケース５ａ内を縦通するクランクシャフト５ｆは、その下端部が縦通する駆動軸１２に連結されており、駆動軸１２の下端部はギヤケース４内に内装したギヤ伝達機構１３に連結する。
ギヤ伝達機構１３は、駆動軸１２の動力を、ギヤケース４内において前後方向を向いて配置された水平な被動軸１３ａに伝え、被動軸１３ａの後端部は、ギヤケース４の後部から後方に突出し、後端部にプロペラ１４が固着され、エンジン５の動力でプロペラ１４を駆動し、一対のドグクラッチで切り換えることで、プロペラの正逆回転を切り換え、前進又は後進の推進力を得る。 A crankshaft 5 f that passes through the crankcase 5 a of the engine 5 is connected to a drive shaft 12 that has a lower end portion that passes through the crankshaft 5 a, and the lower end portion of the drive shaft 12 is connected to a gear transmission mechanism 13 that is housed inside the gear case 4. Link.
The gear transmission mechanism 13 transmits the power of the drive shaft 12 to a horizontal driven shaft 13a disposed in the front-rear direction in the gear case 4, and the rear end portion of the driven shaft 13a protrudes rearward from the rear portion of the gear case 4. The propeller 14 is fixed to the rear end, and the propeller 14 is driven by the power of the engine 5 and is switched by a pair of dog clutches, thereby switching the forward and reverse rotation of the propeller to obtain forward or reverse propulsive force.

前記した主排気管７から排出される排気は矢印（ア）のように下方に導かれてスクリュー１４の中心部から排出されるが、主排気管７に隣接して副排気通路とその下流出口の副排気管１５を設置し、副排気管１５は塩化ビニールとラバーの合成材料からなり、マウントケース６内を通って後方に曲げられ、下カバー２０の後方に開口し、排気を排出する。
一方、下カバー２０の一部には検水口１６を開口し、検水口は、エンジン冷却部に冷却水が流れているか、否かを視認するために、冷却水の一部を外部に（下カバーの後方）に排出している。 Exhaust gas discharged from the main exhaust pipe 7 is guided downward as indicated by an arrow (A) and discharged from the center of the screw 14. The sub exhaust passage and its downstream outlet are adjacent to the main exhaust pipe 7. The auxiliary exhaust pipe 15 is made of a synthetic material of vinyl chloride and rubber, bent backward through the mount case 6, opened to the rear of the lower cover 20, and exhausts exhaust.
On the other hand, a water inspection port 16 is opened in a part of the lower cover 20, and the water inspection port allows a part of the cooling water to be exposed to the outside (downward) in order to visually check whether or not the cooling water is flowing in the engine cooling unit. It is discharged behind the cover.

以上の船外機の前部にはスターンブラケット１７をスイベルケース１８を介して取付、支持し、１８ａ，１８ｂはスイベルケース１８を支持するためのマウントラバーであり、図中５ｇはオイルパン、５ｈは点火プラグである。   The stern bracket 17 is attached and supported to the front part of the above outboard motor via a swivel case 18, and 18a and 18b are mount rubbers for supporting the swivel case 18, in which 5g is an oil pan, 5h Is a spark plug.

図２は船外機の後面図で、エンジンルームを構成する上下のカバーの内、上部のエンジンカバー２は一体、或いは一体的な樹脂成形体で構成されるが、下カバー２０は左右のカバー体（左右の舷側カバー）で構成され、左右のカバー半体からなり、左右のカバー半体を突き合わせ、接合して一体化するものであって、左右のカバー半体は樹脂成形品で構成される。
カバー半体及び下カバーの構成部材は図３に示す通りであり、下カバー２０について説明する。 FIG. 2 is a rear view of the outboard motor. Of the upper and lower covers constituting the engine room, the upper engine cover 2 is formed of an integral or integral resin molded body, while the lower cover 20 is formed of left and right covers. It consists of left and right cover halves, and the left and right cover halves are joined together and joined together, and the left and right cover halves are made of resin molded products. The
The components of the cover half and the lower cover are as shown in FIG. 3, and the lower cover 20 will be described.

下カバー２０は平面視で半長円形の左右の半体２１，２５からなる。上半部２１ａ，２５ａは前後方向に長く、下半部２１ｂ，２５ｂが前後方向の長さが短く、前部の下部２１ｃ，２５ｃが後方に潜っており、上半部の前部２１ｄ，２５ｄは前方に延出されている。
左右のカバー半体２１，２５の内側面には、左右で対称的に係合溝部２１ｅ（右舷の半体２５の係合溝部は隠れて見えないが、同じ位置に設けられている）を設け、左右の半体２１，２５を突き合わせて接合した際、エンジンマウントケース６の周辺フランジ部６ｆ周に囲繞するように嵌着したシール部材６ｇを嵌合し、マウントケースとの間のシールを行う。 The lower cover 20 is composed of left and right halves 21 and 25 that are semi-oval in plan view. The upper half portions 21a and 25a are long in the front-rear direction, the lower half portions 21b and 25b are short in the front-rear direction, the lower portions 21c and 25c in the front portion lie behind, and the front portions 21d and 25d in the upper half portion. Is extended forward.
On the inner side surfaces of the left and right cover halves 21 and 25, there are provided symmetrical engagement grooves 21e on the left and right sides (the engagement groove of the starboard half 25 is not visible but is provided at the same position). When the left and right halves 21 and 25 are brought into contact with each other and joined, the seal member 6g fitted so as to surround the periphery of the peripheral flange portion 6f of the engine mount case 6 is fitted and sealed with the mount case. .

６はエンジンマウントケースで、スイベル軸内のシフトロッドを縦通させる孔６ｂ、駆動軸縦通孔６ａ、エンジン取付フランジ６ｃ、オイルパン６ｅへのオイル戻りの開口、主排気管挿通孔６ｄ等を備える。
また、右舷の半体２５の上半部の前部２５ｄは、下方に潜った抉った形状とし、上からハーネスの隠蔽カバー２２を被せて結合して一体化し、全体として右舷の半体２５を構成する。 An engine mount case 6 includes a hole 6b through which a shift rod in the swivel shaft is vertically passed, a drive shaft vertical hole 6a, an engine mounting flange 6c, an opening for oil return to the oil pan 6e, a main exhaust pipe insertion hole 6d, and the like. Prepare.
Further, the front portion 25d of the upper half portion of the starboard half 25 is formed in the shape of a scooping portion that lies below, and the harness concealment cover 22 is put on and joined together from above to integrate the starboard half 25 as a whole. Constitute.

２４は前部ブラケットであり、左右の半体２１，２５を突き合わせて接合した際、左右の半体２１，２５の上部２１ａ，２５ａの前部２１ｄ，２５ｄの前端部間にブラケットとして臨み、右舷側に下向き半円形の受けアーム２４ａを備え、受けアーム２４ａと隠蔽カバー２２の前端部の下向き半円凹部２２ａとの間にラバーからなる集束ケーブルホルダ２３を挟持し、集束ケーブルのエンジンルーム内への導入、導出保持を行う。
尚、前部ブラケット２４に設けた２４ｂは、上カバーの前部に設けたフック２ａに係止操作する操作アームである。 Reference numeral 24 denotes a front bracket. When the left and right halves 21 and 25 are abutted and joined, they face each other as a bracket between the front ends 21d and 25d of the upper portions 21a and 25a of the left and right halves 21 and 25. A converging cable holder 23 made of rubber is sandwiched between the receiving arm 24a and the downward semicircular recess 22a of the front end portion of the concealing cover 22 so as to enter the engine room of the converging cable. Introduce and hold out.
In addition, 24b provided in the front bracket 24 is an operation arm for engaging with the hook 2a provided in the front portion of the upper cover.

下カバー２０の左右の半体２１，２５の後部の上半部〜上部の突き合わせ部（接合部）は、後部ブラケット３０（以下ブラケットと記す）で接合する。
図４は、図２の要部の拡大図で、上カバー及び下カバーの左右半体のブラケットによる支持部を示す拡大図、図５は、図４の５−５線断面図、図６は、図５の６−６線断面図、図７は、図５の７−７線断面図である。
これらの図面に基づいて説明するが、先ずブラケット３０の構造について説明する。 The buttocks (joining portions) between the upper half and the upper portion of the rear half 21 and 25 of the lower cover 20 are joined by a rear bracket 30 (hereinafter referred to as a bracket).
4 is an enlarged view of the main part of FIG. 2, and is an enlarged view showing the support portion by the left and right half brackets of the upper cover and the lower cover, FIG. 5 is a sectional view taken along line 5-5 of FIG. 5 is a sectional view taken along line 6-6 in FIG. 5, and FIG. 7 is a sectional view taken along line 7-7 in FIG.
Although explained based on these drawings, the structure of the bracket 30 will be explained first.

図８は、ブラケット単体の後面斜視図、図９は、副排気管、検水口を取り外したブラケット単体の斜視図、図１０は、図９の１０−１０線断面図である。
これらの図面に従って、ブラケット３０の単体を説明すると、
ブラケット３０は上下方向に長く形成されて側面視で下半部が若干湾曲し、正面視（裏面視）で上部〜下半部にかけて幅狭の板状体であって、下部が尖ったＵ形をなし、略楯形をなす。 8 is a rear perspective view of the bracket alone, FIG. 9 is a perspective view of the bracket alone with the auxiliary exhaust pipe and the water inspection port removed, and FIG. 10 is a cross-sectional view taken along line 10-10 of FIG.
According to these drawings, a single unit of the bracket 30 will be described.
The bracket 30 is long in the vertical direction, and the lower half is slightly curved in a side view, and is a narrow plate-like body from the upper part to the lower half in a front view (rear view), with a sharp U-shaped lower part. It has a substantially bowl shape.

板状本体３１の上下方向に中間部には、図８、図９で明らかなように前方（裏面側）に膨出する凹状部３１ａを設け、後述するロック操作アームの手操作許容部を構成し、裏面の上部には左右に突出する取付アーム部３２，３２を一体に設け、取付アーム部３２，３２は、正面視では夫々下方に傾斜して設けられ、逆ヘ形に配置されている。
左右の取付アーム部３２，３２の先端部には取付孔３２ａ，３２ａが設けられ、アーム部３２，３２は、全体としてはコ形断面をなして補強構造である。 As shown in FIGS. 8 and 9, a concave portion 31 a that bulges forward (on the back side) is provided at an intermediate portion in the vertical direction of the plate-shaped main body 31 to constitute a manual operation permission portion of a lock operation arm described later. In addition, mounting arm portions 32 and 32 projecting to the left and right are integrally provided on the upper portion of the rear surface, and the mounting arm portions 32 and 32 are respectively inclined downward in a front view and arranged in an inverted shape. .
Mounting holes 32a and 32a are provided at the distal ends of the left and right mounting arm portions 32 and 32, and the arm portions 32 and 32 have a U-shaped cross section as a whole and have a reinforcing structure.

左右のアーム部３２，３２の基部である中間部３２ｂの両側端部には起立片３２ｃ，３２ｃを一体に起設し、この部分間に保持部３２ｄを架設し、両端部に取付ナット３３を埋設する。また、板状本体３１の上部正面にはロック操作アームのヒンジ支持部３２ｅ，３２ｅを突設し、操作アーム４０の揺動する基部を軸支する。   Standing pieces 32c and 32c are erected integrally at both end portions of the intermediate portion 32b which is the base portion of the left and right arm portions 32 and 32, a holding portion 32d is installed between these portions, and mounting nuts 33 are provided at both ends. Buried. Further, hinge support portions 32e and 32e of the lock operation arm are projected from the upper front surface of the plate-shaped main body 31, and the base portion on which the operation arm 40 swings is pivotally supported.

板状本体３１の上辺を除いた周辺部には、幅方向内方に潜る凹溝部３４を囲繞するように設け、この凹溝部３４の幅は前記したカバー半体２１，２５の板厚よりも僅少大きめとする。
また、板状本体３１の下端部３１ｂには、ボルト通し孔３５を設け、これの裏面側に前方に少しの間隔を開けて取付ボス部３６を一体に設け、該取付ボス部３６にナット３７を溶着等しておく。
操作アーム４０と操作杆４０ｂと軸４０ｃとは、ともにブラケット３０側に設けられ、エンジンカバー２側の係止フック２ｂとともに、エンジンカバー２のロック装置を構成する。 The peripheral portion excluding the upper side of the plate-like main body 31 is provided so as to surround the recessed groove portion 34 that is inward in the width direction, and the width of the recessed groove portion 34 is larger than the plate thickness of the cover halves 21 and 25 described above. Slightly larger.
Further, a bolt through hole 35 is provided in the lower end portion 31b of the plate-like main body 31, and a mounting boss portion 36 is integrally provided on the back surface side of the lower end portion 31b with a small space forward, and a nut 37 is provided on the mounting boss portion 36. Is welded.
The operating arm 40, the operating rod 40b, and the shaft 40c are all provided on the bracket 30 side, and constitute a locking device for the engine cover 2 together with the locking hook 2b on the engine cover 2 side.

以上の板状本体３１の前記した凹状部３１ａの下方には副排気管１５の取付孔３８を設け、この下に検水口１６の取付孔を設け、副排気管１５の取付孔３８が大径であり、検水口の取付孔は小径である。
副排気口１５は、排気管の上流部１５ａが板状本体３１の裏面に臨み、開口部のフランジ部１５ｂが取付孔３８の裏面周辺部に当接して保持し、また、検水口１６のチューブ１６ａは板状本体３１の裏面側に突出し、ノズル部１６ｂが取付孔に嵌着されている。
この状態を理解し易いように、板状本体の背面斜視図として図８に示した。 An attachment hole 38 for the auxiliary exhaust pipe 15 is provided below the concave portion 31a of the plate-shaped main body 31 described above, an attachment hole for the water inspection port 16 is provided thereunder, and the attachment hole 38 for the auxiliary exhaust pipe 15 has a large diameter. And the inspection hole mounting hole has a small diameter.
The auxiliary exhaust port 15 has an upstream portion 15 a of the exhaust pipe facing the back surface of the plate-like main body 31, and a flange portion 15 b of the opening portion is held in contact with the peripheral portion of the back surface of the mounting hole 38. 16a protrudes on the back surface side of the plate-shaped main body 31, and the nozzle portion 16b is fitted in the mounting hole .
For easy understanding of this state, a rear perspective view of the plate-like main body is shown in FIG.

図４〜図７に戻ってブラケット３０とエンジンとの取付構造、ブラケット３０と左右のカバー半体２１，２５の取付構造を説明する。
エンジン５のシリンダヘッド５ｃの後壁面５ｋの左右側部の一部に図４に示したように外側方に突出する取付座部５ｉ，５ｉを設け、該取付座５ｉ，５ｉにブラケット３０の板状本体３１の左右に延設した取付アーム部３２，３２を、取付孔３２ａ，３２ａに通したボルト４２，４２により夫々カラー４１を介して固着する。
これにより、ブラケット３０は、エンジン５の後面に取付、支持されることとなる。
エンジン５に代えて、エンジンを支持するエンジンマウントケース６の後面にブラケットを取付、支持しても良い。 Returning to FIGS. 4 to 7, the mounting structure between the bracket 30 and the engine and the mounting structure between the bracket 30 and the left and right cover halves 21 and 25 will be described.
As shown in FIG. 4, mounting seat portions 5i and 5i projecting outward are provided in part of the left and right side portions of the rear wall surface 5k of the cylinder head 5c of the engine 5, and the plate of the bracket 30 is provided on the mounting seats 5i and 5i. The attachment arm portions 32, 32 extending to the left and right of the main body 31 are fixed via the collar 41 by bolts 42, 42 that pass through the attachment holes 32a, 32a, respectively.
As a result, the bracket 30 is attached to and supported by the rear surface of the engine 5.
Instead of the engine 5, a bracket may be attached and supported on the rear surface of the engine mount case 6 that supports the engine.

前記した左右のカバー半体２１，２５の突き合わせる接合縁の上部には、向かい合うように縦長で左右方向に幅狭の係合部１２１，１２５を設け、一方、係合部１２１，１２５の上端部に横方向の取付孔１２１ｂ，１２５ｂを設けた起立片状の取付ボス１２１ａ，１２５ａを起立するように突設する。   Engagement portions 121 and 125 that are vertically long and narrow in the left-right direction are provided at the upper portions of the joining edges of the left and right cover halves 21 and 25 to face each other, while the upper ends of the engagement portions 121 and 125 are provided. Standing piece-like mounting bosses 121a and 125a provided with mounting holes 121b and 125b in the horizontal direction are provided so as to stand upright.

以上においては、左右のカバー半体２１，２５の接合端縁１２１ｃ，１２５ｃを突き合わせ、上部の凹状の係合部１２１，１２５の端縁をブラケット３０の板状本体３１の左右に形成した凹溝部３４に挿入して該端縁を挟み込み、係合する（図７参照）。
係合部１２１，１２５の上端部に形成した前記取付ボス１２１ａ，１２５ａはブラケット３０の上部に設けた起立片３２ｃ，３２ｃに向かい合い、向かい合う端面を突き合わせる。そして、取付ボス１２１ａ，１２５ａの外側からボルト４３，４３を取付孔１２１ｂ，１２５ｂに通し、取付ナット３３，３３にボルト４３，４３を螺合し、取付ボス１２１ａ，１２５ａをブラケット３０の上部左右に固着し、ブラケット３０にカバー半体２１，２５の接合部の上端部を取付、支持する。 In the above, the joining groove edges 121 c and 125 c of the left and right cover halves 21 and 25 are abutted, and the recessed grooves formed at the left and right of the plate-like main body 31 of the bracket 30 with the upper edges of the concave engaging portions 121 and 125. It inserts in 34, this edge is inserted | pinched, and it engages (refer FIG. 7).
The mounting bosses 121a and 125a formed on the upper end portions of the engaging portions 121 and 125 face upright pieces 32c and 32c provided on the upper portion of the bracket 30, and abut end surfaces facing each other. Then, the bolts 43, 43 are passed through the mounting holes 121b, 125b from the outside of the mounting bosses 121a, 125a, the bolts 43, 43 are screwed into the mounting nuts 33, 33, and the mounting bosses 121a, 125a are placed on the upper left and right sides of the bracket 30. The upper end portion of the joined portion of the cover halves 21 and 25 is attached to and supported by the bracket 30.

一方、左右のカバー半体２１，２５の前記した係合部１２１，１２５の下部には、向かい合い、上下に重なり合うように結合座部１２１ｄ，１２５ｄを突設する。
結合座部１２１ｄ，１２５ｄは、一方１２１ｄは一段エンジンルーム内に潜って凹状部として形成され、他方１２５ｄは潜った分の肉厚を有し、外面は他方の同様に接合した状態で略々同一面を構成するように設定されている。
以上の結合座部１２１ｄ，１２５ｄには、段付きボルト４４のネジ部４４ａの径よりも大径で、大径軸部４４ｂを密に通す径の通孔１２１ｆ，１２５ｆを底に有するテーパー部１２１ｅ，１２５ｅを設けている。 On the other hand, coupling seats 121d and 125d project from the lower portions of the engaging portions 121 and 125 of the left and right cover halves 21 and 25 so as to face each other and overlap vertically.
The coupling seats 121d and 125d are formed in a concave shape with one 121d diving into the one-stage engine room, the other 125d has the thickness of the submerged portion, and the outer surface is substantially the same in the joined state in the same manner as the other. It is set to constitute a plane.
The coupling seats 121d and 125d have a tapered portion 121e having through-holes 121f and 125f having a diameter larger than that of the screw portion 44a of the stepped bolt 44 and having a diameter through which the large-diameter shaft portion 44b is densely passed. , 125e.

以上の結合座部１２１ｄ，１２５ｄは左右の位相がずれた状態で孔を位置を略々一致させた状態で重ね合わせておく。
ボルト４４を板状本体３１の下端部の通し孔３９に通し、ボルト４４のネジ部４４ａを結合座部１２１ｄ，１２５ｄの遊合する孔１２１ｆ，１２５ｆを通してそのネジ部４４ａをブラケット下端部裏側に設けた取付ボス部３６に溶着したナット３７に螺合する。この状態を図６の（ａ）で示した。 The coupling seats 121d and 125d described above are overlapped with the positions of the holes substantially aligned with the left and right phases shifted.
The bolt 44 is passed through the through hole 39 at the lower end of the plate-shaped main body 31, and the screw 44a of the bolt 44 is provided on the back side of the lower end of the bracket through the holes 121f and 125f in which the coupling seats 121d and 125d are engaged. The nut 37 welded to the mounting boss 36 is screwed. This state is shown in FIG.

ボルト４４のねじ締めの進行によって、ボルト４４の大径軸部４４ｂは、外側の結合座部１２５ｄのテーパー部１２５ｅから内側の結合座部１２１ｄのテーパー部１２１ｅに到り、調心作用で結合座部１２１ｄ，１２５ｄ相互を引き寄せ、最終的は孔１２１ｆ，１２５ｆを一致させ、結合座部１２１ｄ，１２５ｄを重なり合った状態で、係合部１２１，１２５をブラケット３０の周辺部に引き寄せてブラケット３０の下部に結合されることとなる。この状態を図６の（ｂ）で示した。   As the bolt 44 is tightened, the large-diameter shaft portion 44b of the bolt 44 reaches from the tapered portion 125e of the outer coupling seat portion 125d to the tapered portion 121e of the inner coupling seat portion 121d. The parts 121d and 125d are pulled together, and finally the holes 121f and 125f are made to coincide with each other and the coupling seats 121d and 125d are overlapped with each other, and the engaging parts 121 and 125 are drawn toward the periphery of the bracket 30 to lower the bracket 30. Will be combined. This state is shown in FIG.

図５に示したように上カバー２の後面部の下部で、操作アーム４０と対向する部位には係止フック２ｂを設け、操作アーム４０の操作杆４０ｂの軸４０ｃを中心とした回動操作で、ロック杆４０ａが係止フック２ｂに係合して締め付け、エンジンカバー２の後部を閉蓋ロックする。
図５において２ｃは係止フック２０ｂをエンジンカバー後部に止着するリベットである。又図４、図５において、６ｈはマウントケース６に設けた副排気通路で、副排気口の
チューブ１５ａの最下流部１５ｃが接続され、排気の一部を副排気口に流通させる通路である。 As shown in FIG. 5, a locking hook 2 b is provided at a lower portion of the rear surface portion of the upper cover 2 so as to face the operation arm 40, and the rotation operation about the shaft 40 c of the operation rod 40 b of the operation arm 40 is performed. Then, the lock rod 40a is engaged with the locking hook 2b and tightened, and the rear portion of the engine cover 2 is closed and locked.
In FIG. 5, reference numeral 2c denotes a rivet for fastening the locking hook 20b to the rear part of the engine cover. 4 and 5, 6 h is a sub exhaust passage provided in the mount case 6, which is connected to the most downstream portion 15 c of the tube 15 a of the sub exhaust port and allows a part of the exhaust to flow to the sub exhaust port. .

以上のように、下カバーを取付支持するブラケット３０に副排気口１５及び検水口１６を設置したので、下カバーを取り外す際にカバーから副排気口１５及び接続管等の取り外しやシール部材の取り外しを必要とすることが無く、また、検水口の取り外し、チューブの取り外し等の作業を必要とせず、作業後の再組付作業を必要としない。
従って、副排気口、検水口を設置した場合に置いても、純粋にカバー半体の取り外す作業のみですむ。 As described above, since the auxiliary exhaust port 15 and the water inspection port 16 are installed in the bracket 30 for mounting and supporting the lower cover, when removing the lower cover, the auxiliary exhaust port 15 and the connecting pipe are removed from the cover and the sealing member is removed. In addition, there is no need for work such as removal of the inspection port and removal of the tube, and reassembly work after work is not required.
Therefore, even if the auxiliary exhaust port and inspection port are installed, it is only necessary to remove the cover half.

また、下カバーの左右のカバー半体の取り外し、再組付作業において、夫々はブラケットに、後部の接合部上部が取付支持されているので、一方を取り外しても、他方がブラケットに残留して取付支持されているので、カバー半体はバラバラになることがなく、一方がブラケットに取付支持状態を維持しているので、取り外し作業は容易であり」、また再度の組付作業も容易である。   In addition, when removing and reassembling the left and right cover halves of the lower cover, the upper part of the rear joint is attached to and supported by the bracket, so even if one is removed, the other remains on the bracket. Since it is mounted and supported, the cover half does not fall apart, and one of them maintains the mounting support state on the bracket, so that the removal work is easy, "and the reassembly work is also easy. .

ところで、図１、図２及び図４において２６は、下カバー２０を構成する左右のカバー半体２１，２５の一方、実施例では２５の後面の最上部の一部に設けた点火プラグメンテナンスリッドで、これを取り外すことで、複数気筒の上下に配設されたのシリンダのシリンダヘッドに形成される下位のエジン燃焼室用に点火プラグを露出させ、プラグ点検や交換等を行いうるようにし、この際、上のエンジンカバーを取り外す必要がない。   1, 2, and 4, reference numeral 26 denotes a spark plug maintenance lid provided on one of the left and right cover halves 21, 25 constituting the lower cover 20, in the embodiment, the uppermost part of the rear surface of 25. By removing this, the ignition plug is exposed for the lower engine combustion chamber formed in the cylinder head of the cylinders arranged above and below the plurality of cylinders so that the plug can be inspected and replaced, At this time, it is not necessary to remove the upper engine cover.

また、エンジンカバーを外して上下に配設された複数個の点火プラグの点検等を行う際、下位のプラグは下カバーに邪魔されて点検し難いが、リッド２６を取り外すことで容易にプラグ点検などが行える。   In addition, when removing the engine cover and inspecting a plurality of spark plugs arranged above and below, the lower plug is obstructed by the lower cover and is difficult to inspect, but it is easy to inspect the plug by removing the lid 26. Etc. can be done.

本発明の下カバーの取付構造は、船外機の下カバーに好適である。   The lower cover mounting structure of the present invention is suitable for the lower cover of an outboard motor.

本発明に係る船外機の側面図で、内部機構を破線で示した図である。It is the side view of the outboard motor which concerns on this invention, and is the figure which showed the internal mechanism with the broken line. 船外機の外観後面図である。It is an appearance rear view of an outboard motor. 船外機の下カバーの分解斜視図で、エンジン支持部材や前後のブラケット類を含む斜視図である。It is a disassembled perspective view of the lower cover of an outboard motor, and is a perspective view including an engine support member and front and rear brackets. 図２の要部の拡大図で、上カバー及び下カバーの左右半体のブラケットによる支持部を示す拡大図である。It is an enlarged view of the principal part of FIG. 2, and is an enlarged view which shows the support part by the bracket of the left-right half body of an upper cover and a lower cover. 図４の５−５線断面図である。FIG. 5 is a sectional view taken along line 5-5 of FIG. 図５の６−６線断面図である。FIG. 6 is a sectional view taken along line 6-6 of FIG. 図５の７−７線断面図である。FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 5. ブラケット単体の後面斜視図である。It is a rear surface perspective view of a bracket simple substance. 副排気管、検水口を取り外したブラケット単体の斜視図である。It is a perspective view of the bracket simple substance which removed the sub exhaust pipe and the inspection port. 図９の１０−１０線断面図である。FIG. 10 is a sectional view taken along line 10-10 in FIG. 9;

符号の説明Explanation of symbols

１…船外機、 ２…エンジンカバー、２ｉ…エンジンルーム、 ５…エンジン、 ５ｉ…取付座部、 １５…副排気口、 １６…検水口、 ２０…下カバー、２１，２５…左右のカバー半体、３０…ブラケット、 ３１…板状本体、 ３２…取付アーム、 ３４…凹溝部、 ３９…通し孔、 ４２，４４…ボルト、 １２１ｅ，１２５ｅ，１２１ｆ，１２５ｆテーパー孔、 １２１ｄ，１２５ｄ…結合座部。 DESCRIPTION OF SYMBOLS 1 ... Outboard motor, 2 ... Engine cover, 2i ... Engine room, 5 ... Engine, 5i ... Mounting seat part, 15 ... Sub exhaust port, 16 ... Inspection port, 20 ... Lower cover, 21,25 ... Left and right cover half Body , 30 ... Bracket, 31 ... Plate body, 32 ... Mounting arm, 34 ... Concave groove, 39 ... Through hole, 42, 44 ... Bolt, 121e, 125e, 121f, 125f Tapered hole, 121d, 125d ... Coupling seat .

Claims (4)

エンジンを収容するエンジンルームの下半部を、左右舷側を構成する左右の樹脂製のカバー半体を組付一体化してカバー組立体で構成した船外機において、
前記エンジンの後半部の左右に取付座を設け、
前記エンジンと左右のカバー半体を結合するブラケットを有し、該ブラケットは本体が板状であり、このブラケットの板状本体の左右に取付アームを有し、該左右の取付アームの先端部と前記エンジンの後半部の左右に取付座とをボルトを介して結合するとともに、
前記ブラケットは、板状本体の上辺を除いた外周に凹溝部を有し、
前記左右のカバー半体の後半部には、突き合わせる接合端縁部の上部に向かい合うように凹状の係合部を有し、
前記凹状の係合部の端縁を、前記ブラケットの板状本体外周の前記凹溝部に挟み込んで係合し、
前記左右のカバー半体の一部には、向かい合い、前後に重なり合う結合座部を備え、前後に重なり合う結合座部には、テーパー孔を備え、
前記ブラケットの板状本体下端部に設けた通し孔から前後に重なり合う前記結合座部に設けたテーパー孔を介して該結合座部を締め付けることで、左右のカバー半体の前記前後の結合座部をブラケットの板状本体に締結、結合しつつ、左右のカバー半体を相寄る方向に引っ張るようにした、
ことを特徴とする船外機。 In the outboard motor configured with the cover assembly by assembling and integrating the left and right resin cover halves constituting the left and right side of the lower half of the engine room housing the engine,
Mounting seats are provided on the left and right of the rear half of the engine,
A bracket for connecting the engine and the left and right cover halves; the bracket has a plate-like body, and has mounting arms on the left and right of the plate-like body of the bracket; While connecting the mounting seat to the left and right of the rear half of the engine via bolts,
The bracket has a groove on the outer periphery excluding the upper side of the plate-shaped body,
In the rear half of the left and right cover halves, there is a concave engagement part so as to face the upper part of the joining edge part to be abutted,
The edge of the concave engagement portion is sandwiched and engaged with the concave groove portion on the outer periphery of the plate-shaped main body of the bracket,
A part of the left and right cover halves face each other and have a coupling seat part that overlaps in the front and rear, a coupling seat part that overlaps in the front and rear, a tapered hole,
The front and rear joint seats of the left and right cover halves are tightened through taper holes provided in the joint seats that overlap the front and rear from the through holes provided in the lower end of the plate-like body of the bracket. The left and right cover halves were pulled toward each other while tightening and joining to the plate body of the bracket.
Outboard motor characterized by that. 前記エンジンの排気の一部をエンジンルーム外部に排出する副排気管を通す副排気口を、前記ブラケットに設けたことを特徴とする請求項１記載の船外機。The outboard motor according to claim 1, wherein a sub exhaust port through which a sub exhaust pipe for discharging a part of the exhaust of the engine to the outside of the engine room is provided in the bracket. 前記エンジンの冷却水の一部をエンジンルーム外部に排出する検水口を、前記ブラケットに設けたことを特徴とする請求項１記載の船外機。The outboard motor according to claim 1, wherein a water inspection port for discharging a part of cooling water of the engine to the outside of the engine room is provided in the bracket. 前記ブラケットの板状本体に結合座部を、締結、結合する部材は段付きボルトであり、前後に重なり合う前記結合座部に設けたテーパー孔は、段付きボルトのネジ部の径よりも大径で、大径軸部を密に通す径であり、前記テーパー孔に段付きボルトを通し、大径軸部を該テーパー孔の通孔を通すことで左右のカバー半体を相寄る方向に引っ張るようにしたことを特徴とする請求項１記載の船外機。The member that fastens and couples the coupling seat to the plate-like body of the bracket is a stepped bolt, and the taper hole provided in the coupling seat that overlaps the front and rear is larger in diameter than the diameter of the threaded portion of the stepped bolt. The diameter of the large-diameter shaft portion is tightly passed, a stepped bolt is passed through the tapered hole, and the large-diameter shaft portion is pulled through the tapered hole to pull the left and right cover halves together. The outboard motor according to claim 1, which is configured as described above.
JP2006127667A 2006-05-01 2006-05-01 Outboard motor Active JP4721438B2 (en)

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JP2006127667A JP4721438B2 (en) 2006-05-01 2006-05-01 Outboard motor
CA2584386A CA2584386C (en) 2006-05-01 2007-04-11 Outboard engine unit
US11/785,632 US7621791B2 (en) 2006-05-01 2007-04-19 Outboard engine unit
EP07008335A EP1852589B1 (en) 2006-05-01 2007-04-24 Outboard engine unit
CN2007101077782A CN101066703B (en) 2006-05-01 2007-04-29 Outboard engine unit
CN2008101731935A CN101412438B (en) 2006-05-01 2007-04-29 Outboard engine unit

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JP2013252736A (en) * 2012-06-05 2013-12-19 Yamato Hatsudoki Kk Outboard motor of racing boat
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970900U (en) * 1982-11-02 1984-05-14 スズキ株式会社 Outboard motor
JP2001199393A (en) * 2000-01-17 2001-07-24 Honda Motor Co Ltd Supporting structure of under cover in outboard engine
JP2004338463A (en) * 2003-05-13 2004-12-02 Honda Motor Co Ltd Cover structure of outboard motor

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Publication number Priority date Publication date Assignee Title
JPS5970900A (en) * 1982-10-15 1984-04-21 Hitachi Ltd Guide vane casing of internal pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970900U (en) * 1982-11-02 1984-05-14 スズキ株式会社 Outboard motor
JP2001199393A (en) * 2000-01-17 2001-07-24 Honda Motor Co Ltd Supporting structure of under cover in outboard engine
JP2004338463A (en) * 2003-05-13 2004-12-02 Honda Motor Co Ltd Cover structure of outboard motor

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