JP3182896U - Rear wheel suspension mounting device for rear unicycle - Google Patents

Rear wheel suspension mounting device for rear unicycle Download PDF

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JP3182896U
JP3182896U JP2012007992U JP2012007992U JP3182896U JP 3182896 U JP3182896 U JP 3182896U JP 2012007992 U JP2012007992 U JP 2012007992U JP 2012007992 U JP2012007992 U JP 2012007992U JP 3182896 U JP3182896 U JP 3182896U
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省吾 中川
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Abstract

【課題】後輪懸架性能の明確な改善が見込める横臥二本サス構造を、現行機種や中古車にも無理なく導入できる後付可能な自動二輪車用後輪懸架取付装置を提供する。
【解決手段】後輪4を回転自在に支持して車体フレーム1に揺動可能に支承される揺動アーム5と車体フレーム1とに亘って架設される緩衝器13が、後輪4の左右それぞれに装備される自動二輪車用の後輪懸架取付装置Aが、緩衝器13又はこれと異なる代替緩衝器16を、側面視で横臥姿勢又はそれに近い姿勢で後輪4の左右それぞれに装着可能とすべく、車体フレーム1に螺着によって後付装備可能な左右のバネ上具LB等及び揺動アーム5に螺着によって後付装備可能な左右のバネ下具LS等を有して構成される。
【選択図】図2
The present invention provides a rear wheel suspension mounting device for a motorcycle that can be retrofitted without difficulty to install a double suspension structure that can expect a clear improvement in rear wheel suspension performance into current models and used cars.
SOLUTION: A swing arm 5 rotatably supported on a vehicle body frame 1 with a rear wheel 4 rotatably supported and a shock absorber 13 installed over the vehicle body frame 1 are provided on the left and right sides of the rear wheel 4. The rear-wheel suspension mounting device A for motorcycles mounted on each can mount the shock absorber 13 or an alternative shock absorber 16 different from the shock absorber 13 on the left and right sides of the rear wheel 4 in a sideways posture or a posture close thereto. The left and right spring upper tools LB and the like that can be retrofitted by screwing on the vehicle body frame 1 and the left and right spring lower tools LS and the like that can be retrofitted by screwing on the swing arm 5 are preferably configured. .
[Selection] Figure 2

Description

本考案は、自動二輪車や前二輪の自動三輪車等の後一輪車に好適な後輪懸架取付装置に係り、詳しくは、後輪を回転自在に支持し、かつ、車体フレームに対して揺動可能に支承される揺動アームと車体フレームとに亘って架設される緩衝器を、後輪の左右それぞれに設けてある後一輪車用後輪懸架取付装置に関するものである。  The present invention relates to a rear wheel suspension mounting device suitable for a rear unicycle such as a motorcycle or a front two-wheeled motor tricycle, and more specifically, supports a rear wheel rotatably and can swing with respect to a body frame. The present invention relates to a rear wheel suspension mounting device for a rear unicycle in which shock absorbers that are installed across a swing arm to be supported and a vehicle body frame are provided on the left and right sides of the rear wheel, respectively.

先に、特許文献1にて開示されるように、後輪の左右それぞれに緩衝器を設ける構造、即ち二本サス(ツインショック)構造を採る二輪車の後輪懸架性能を明確に向上し得る車体構造が出願されている。その概要としては、後輪の左右夫々に緩衝器を備える自動二輪車において、緩衝器の前端部を上下方向で揺動アーム支点に近付けるべく、各緩衝器を横臥姿勢又は超前傾姿勢として揺動アームと車体フレームとに亘って架設する、というものである。つまり、左右の緩衝器を横臥姿勢としてその前端部を上下方向で揺動アーム支点に近付けて設ける構成であり、これを横臥二本サス構造と呼ぶものする。  First, as disclosed in Patent Document 1, a structure in which a shock absorber is provided on each of the left and right sides of the rear wheel, that is, the rear wheel suspension performance of a two-wheeled vehicle adopting a two-suspension (twin shock) structure can be clearly improved. A structure has been filed. As a summary, in a motorcycle equipped with shock absorbers on the left and right sides of the rear wheels, each shock absorber is in a recumbent posture or a super forward leaning posture in order to bring the front end of the shock absorber close to the swing arm fulcrum in the vertical direction. And the vehicle body frame. That is, the left and right shock absorbers are in a horizontal position, and the front end thereof is provided close to the oscillating arm fulcrum in the vertical direction, which is called a horizontal horizontal suspension structure.

横臥二本サス構造を、既に販売されている市販車(中古車も含む)に採り入れることができるようになれば、従来のあまり芳しくない後輪懸架性能を改善できて、ユーザーの満足度を向上させたり、中古販売における商品価値を向上させることが可能になり、大変好ましいものとなることが予測される。横臥二本サス構造は、二輪メーカー等において新設計する機種であれば周辺構造の検討も含めて円滑に導入することができるが、既に販売されている現行機種や中古車に導入できるかどうかについては定かではない。  If it becomes possible to incorporate the two horizontal suspension structure into a commercial vehicle (including a used car) that has already been sold, it will be possible to improve the rear wheel suspension performance, which is not so good, and to improve user satisfaction. It is possible to improve the product value in secondhand sales, and it is predicted that it will be very favorable. The YOKOHAMA 2-suspension structure can be introduced smoothly, including the examination of the surrounding structure, if it is a model newly designed by a motorcycle manufacturer, etc., but whether it can be introduced to current models and used cars already on sale Is not certain.

即ち、横臥二本サス構造を、現状の構成をあまり変更することなく適用できる場合や、フレームを切断したりそのレイアウト変更を伴うとか、排気管の位置や形状を変更する等の大掛かりな改造を伴って可能となる場合がある。つまり、緩衝器を横臥姿勢で車体フレームと揺動アームとに架設連結させるに可能な強度部材が存在しているか、及び存在している場合に強度が持つか、配置スペースがあるか、足元の邪魔にならないか、等の構造的に実現が可能であるか否かの検討が、その対象となる機種毎に必要となるからである。  In other words, when the current two-wheel suspension structure can be applied without much change, the frame is cut or its layout is changed, or the exhaust pipe position and shape are changed. It may be possible with this. In other words, whether there is a strength member that can be installed to connect the shock absorber to the body frame and the swinging arm in a lying position, and if present, the strength is sufficient, whether there is a placement space, This is because it is necessary for each target model to examine whether it can be realized structurally, such as not disturbing.

特開平10−081288号公報Japanese Patent Laid-Open No. 10-081288

本考案の目的は、さらなる創意工夫により、後輪懸架性能の明確な改善が見込める横臥二本サス構造を、現行機種や中古車にも無理なく導入することが可能となる後一輪車用後輪懸架取付装置を開発して提供する点にある。  The purpose of the present invention is a rear wheel suspension for rear unicycles that can be easily introduced into current models and used cars by adopting a double suspension structure that can clearly improve the rear wheel suspension performance through further ingenuity. It is in the point which develops and provides a mounting device.

請求項1に係る考案は、後輪4を回転可能に支持し、かつ、車体フレーム1に対して揺動可能に支承される揺動アーム5と前記車体フレーム1とに亘って架設される緩衝器13を、前記後輪4の左右それぞれに設けてある後一輪車用後輪懸架取付装置において、
前記緩衝器13又は前記緩衝器13とは別の代替緩衝器16を、前記揺動アーム5における前記緩衝器13を連結するための既設連結部5cが揺動アーム側連結部に兼用される状態で、側面視で横臥姿勢又は横臥姿勢に近い姿勢で前記後輪4の左右それぞれに装着可能とすべく、前記車体フレーム1に後付装備可能な左バネ上具LBと右バネ上具RBとを有して成り、
前記左バネ上具LBは、前記緩衝器13又は前記代替緩衝器16を連結するためのフレーム側連結部23を備えるとともに、前記車体フレーム1に装備されている螺着部1a,1dを用いて前記車体フレーム1の左側に取着可能な取付部66,67を有して構成され、
前記右バネ上具RBは、前記緩衝器13又は前記代替緩衝器16を連結するためのフレーム側連結部23を備えるとともに、前記車体フレーム1に装備されている螺着部1a,1dを用いて前記車体フレーム1の右側に取着可能な取付部66,67を有して構成されていることを特徴とするものである。
According to the first aspect of the present invention, the rear wheel 4 is rotatably supported, and the swinging arm 5 supported so as to be swingable with respect to the body frame 1 and the body frame 1 is provided with a buffer. In the rear wheel suspension mounting device for a rear unicycle provided with the device 13 on each of the left and right sides of the rear wheel 4,
The state where the existing connecting portion 5c for connecting the shock absorber 13 or the alternative shock absorber 16 different from the shock absorber 13 to the shock absorber 13 in the swing arm 5 is also used as the swing arm side connecting portion. Thus, a left spring upper tool LB and a right spring upper tool RB that can be retrofitted to the vehicle body frame 1 so as to be able to be mounted on the left and right sides of the rear wheel 4 in a lying position or a position close to a lying position when viewed from the side. Comprising
The left spring upper tool LB includes a frame-side connecting portion 23 for connecting the shock absorber 13 or the alternative shock absorber 16, and uses screwed portions 1 a and 1 d equipped on the vehicle body frame 1. It has a mounting portion 66, 67 that can be attached to the left side of the body frame 1,
The right spring upper tool RB includes a frame side connecting portion 23 for connecting the shock absorber 13 or the alternative shock absorber 16 and also uses screwed portions 1a and 1d provided in the vehicle body frame 1. The vehicle body frame 1 is provided with attachment portions 66 and 67 that can be attached to the right side of the vehicle body frame 1.

請求項2に係る考案は、後輪4を回転自在に支持し、かつ、車体フレーム1に対して揺動可能に支承される揺動アーム5と前記車体フレーム1とに亘って架設される緩衝器13を、前記後輪4の左右それぞれに設けてある後一輪車用後輪懸架取付装置において、
前記緩衝器13又は前記緩衝器13とは別の代替緩衝器16を、側面視で横臥姿勢又は横臥姿勢に近い姿勢で前記後輪4の左右それぞれに装着可能とすべく、前記車体フレーム1に後付装備可能な左右のバネ上具LB,RB及び前記揺動アーム5に後付装備可能な左右のバネ下具LS,RSを有して成り、
前記左バネ上具LBは、前記緩衝器13又は前記代替緩衝器16を連結するためのフレーム側連結部23を備え、かつ、前記車体フレーム1に装備されている螺着部1a,1dを用いて前記車体フレーム1の左側に取着可能な取付部18a,19aを有して構成され、
前記右バネ上具RBは、前記緩衝器13又は前記代替緩衝器16を連結するためのフレーム側連結部23を備え、かつ、前記車体フレーム1に装備されている螺着部1a,1dを用いて前記車体フレーム1の右側に取着可能な取付部28a,29aを有して構成され、
前記左バネ下具LSは、前記緩衝器13又は前記代替緩衝器16を連結するための揺動アーム側連結部35を備え、かつ、前記揺動アーム5における左アーム5Lに装備されている螺着部5d,5cを用いて前記左アーム5Lに取着可能な取付部59,33aを有して構成され、
前記右バネ下具RSは、前記緩衝器13又は前記代替緩衝器16を連結するための揺動アーム側連結部43を備え、かつ、前記揺動アーム5における右アーム5Rに装備されている螺着部5e、5cを用いて前記右アーム5Rに取着可能な取付部42,41を有して構成されていることを特徴とするものである。
The invention according to claim 2 supports the rear wheel 4 so as to be rotatable, and supports the swinging arm 5 supported so as to be swingable with respect to the body frame 1 and the body frame 1. In the rear wheel suspension mounting device for a rear unicycle provided with the device 13 on each of the left and right sides of the rear wheel 4,
The shock absorber 13 or an alternative shock absorber 16 different from the shock absorber 13 can be mounted on the vehicle body frame 1 so that it can be mounted on each of the left and right sides of the rear wheel 4 in a sideways posture or a posture close to a sideways posture in a side view. Left and right spring upper tools LB and RB that can be retrofitted and left and right spring lower tools LS and RS that can be retrofitted to the swing arm 5
The left spring upper tool LB includes a frame side connecting portion 23 for connecting the shock absorber 13 or the alternative shock absorber 16, and uses screwed portions 1a and 1d provided in the vehicle body frame 1. And has mounting portions 18a and 19a that can be attached to the left side of the body frame 1.
The right spring upper tool RB includes a frame-side connecting portion 23 for connecting the shock absorber 13 or the alternative shock absorber 16, and uses screwed portions 1 a and 1 d equipped on the vehicle body frame 1. And has mounting portions 28a and 29a that can be attached to the right side of the body frame 1.
The left unsprung tool LS includes a swing arm side connecting portion 35 for connecting the shock absorber 13 or the alternative shock absorber 16, and a screw provided on the left arm 5 L of the swing arm 5. It has attachment parts 59 and 33a that can be attached to the left arm 5L using the attachment parts 5d and 5c,
The right unsprung tool RS includes a swing arm side connecting portion 43 for connecting the shock absorber 13 or the alternative shock absorber 16, and a screw provided in the right arm 5 </ b> R of the swing arm 5. It is characterized by having attachment portions 42 and 41 that can be attached to the right arm 5R using the attachment portions 5e and 5c.

請求項3に係る考案は、請求項2に記載の後一輪車用後輪懸架取付装置において、前記左バネ下具LSの前記取付部33a,59が、前記緩衝器13を前記揺動アームに連結すべく前記左アーム5Lに装備される支承軸5eに挿通して螺装するための嵌装孔33a及び/又はチェンケース34を前記揺動アーム5に取付けるボルト50で共締め可能とするための挿通孔59で成り、
前記右バネ下具RSの前記取付部41,42が、前記緩衝器13を前記揺動アーム5に連結すべく前記右アーム5Rに装備される支承軸5eに挿通して螺装するための嵌装孔41及び/又はトルクリンク54の前端部を前記右アーム5Rに支承すべく前記右アーム5Rに装備される支持軸部5eに嵌装するための装着孔42であることを特徴とするものである。
The invention according to claim 3 is the rear wheel suspension mounting device for a rear unicycle according to claim 2, wherein the mounting portions 33a and 59 of the left unsprung tool LS connect the shock absorber 13 to the swing arm. In order to allow the fitting hole 33a and / or the chain case 34 to be inserted and screwed into the support shaft 5e mounted on the left arm 5L, to be fastened together with the bolt 50 attached to the swing arm 5. It consists of an insertion hole 59,
The fitting portions 41 and 42 of the right unsprung tool RS are inserted into and screwed into a support shaft 5e provided on the right arm 5R to connect the shock absorber 13 to the swing arm 5. A mounting hole 42 for fitting the mounting shaft 41 and / or the front end portion of the torque link 54 to the support shaft portion 5e mounted on the right arm 5R to support the right arm 5R. It is.

請求項4に係る考案は、請求項1〜3の何れか一項に記載の後一輪車用後輪懸架取付装置において、前記左バネ上具LBの前記取付部19a,18aが、前記揺動アーム5を前記車体フレーム1に支承する支持シャフト14で共締め固定するための通し孔19a又は/及びエンジン懸架ボルト20で共締め固定するためのボルト用孔18aであり、
前記右バネ上具RBの前記取付部29a,28aが、前記揺動アーム5を前記車体フレーム1に支承する支持シャフト14で共締め固定するための通し孔29a又は/及びエンジン懸架ボルト20で共締め固定するためのボルト用孔28aであることを特徴とするものである。
The invention according to claim 4 is the rear wheel suspension mounting device for a rear unicycle according to any one of claims 1 to 3, wherein the mounting portions 19a, 18a of the left spring upper tool LB are the swing arm. A through hole 19a for fastening together with a support shaft 14 supported on the vehicle body frame 1 and / or a bolt hole 18a for fastening together with an engine suspension bolt 20.
The attachment portions 29a and 28a of the right spring upper tool RB are shared by a through hole 29a for fixing the swing arm 5 together with a support shaft 14 supported on the body frame 1 and / or an engine suspension bolt 20. This is a bolt hole 28a for tightening and fixing.

請求項1の考案によれば、詳しくは実施形態の項にて説明するが、揺動アームにおける緩衝器の連結部を緩衝器揺動アーム側連結部に兼用する形態の横臥二本サス構造を採るための左右のバネ上具を、車体フレームに装備されている螺着部を利用して車体フレームに取付けることができる。即ち、バネ上具を取付けるためのステーを車体フレームに溶接するといった大掛かりな改造を行う手段では、車体の分解や再塗装を伴う面倒で手間及び時間を要する改造となって非常に高いコストが掛かるが、既存の螺着部を用いる請求項1の考案ではそのような不都合がなく、従って構造簡単で廉価に左右のバネ上具を後付装着することが可能になる。加えて、螺着部を用いるのでバネ上具の着脱が可能となる便利さもある。その結果、さらなる創意工夫により、後輪懸架性能の明確な改善が見込める横臥二本サス構造を、左右のバネ上具で構成でき、現行機種や中古車にも無理なく導入することが可能となる後一輪車用後輪懸架取付装置を提供することができる。  According to the first aspect of the present invention, although described in detail in the section of the embodiment, the two-sided suspension structure in which the connecting portion of the shock absorber in the swing arm is also used as the shock absorber swing arm side connecting portion is provided. The left and right sprung tools to be taken can be attached to the vehicle body frame using the screwed portions provided on the vehicle body frame. In other words, a large-scale remodeling method such as welding a stay for attaching a sprung tool to the vehicle body frame is a complicated and time-consuming remodeling that requires disassembly and repainting of the vehicle body, and requires a very high cost. However, the invention of claim 1 using the existing threaded portion does not have such inconvenience, and therefore it is possible to retrofit the left and right spring upper tools with a simple structure and at low cost. In addition, since the screwing portion is used, there is the convenience that the sprung tool can be attached and detached. As a result, with a further ingenuity, the two-side suspension structure that can clearly improve the suspension performance of the rear wheels can be configured with left and right spring tops, which can be easily introduced into current models and used cars. A rear wheel suspension mounting device for a rear unicycle can be provided.

請求項2の考案によれば、詳しくは実施形態の項にて説明するが、揺動アームにおける緩衝器の連結部を兼用しない形態の横臥二本サス構造を採るための左右のバネ上具及び左右のバネ下具を、車体フレーム及び揺動アームに装備されている螺着部を利用して車体フレーム及び揺動アームに取付けることができる。即ち、バネ上具やバネ下具を取付けるためのステー類を車体フレームや揺動アームに溶接するといった大掛かりな改造を行う手段では、車体の分解や再塗装を伴う面倒で手間及び時間を要する改造となって非常に高いコストが掛かるが、既存の螺着部を用いる請求項2の考案ではそのような不都合がなく、従って構造簡単で廉価に左右のバネ上具及びバネ下具を後付装着することが可能になる。加えて、螺着部を用いるのでバネ上具やバネ下具の着脱が可能となる便利さもある。その結果、さらなる創意工夫により、後輪懸架性能の明確な改善が見込める横臥二本サス構造を、左右のバネ上具及び左右のバネ下具で構成でき、現行機種や中古車にも無理なく導入することが可能となる後一輪車用後輪懸架取付装置を提供することができる。  According to the second aspect of the present invention, the left and right spring upper tools for adopting the two-sided horizontal suspension structure that does not serve as the coupling portion of the shock absorber in the swing arm, as will be described in detail in the section of the embodiment. The left and right unsprung tools can be attached to the vehicle body frame and the swing arm using the screwed portions provided on the vehicle body frame and the swing arm. In other words, in the means of making large-scale modifications such as welding the stays for attaching the sprung or unsprung tools to the body frame or the swinging arm, it is a troublesome and time-consuming modification and repainting of the body. However, the invention of claim 2 using the existing threaded portion does not have such inconvenience, so that the right and left spring upper and lower springs can be retrofitted with a simple structure and low cost. It becomes possible to do. In addition, since the threaded portion is used, there is the convenience that the sprung tool and the unsprung tool can be attached and detached. As a result, with a further ingenuity, it is possible to construct a two-sided suspension structure that can clearly improve the suspension performance of the rear wheel with left and right spring top tools and left and right spring bottom tools. It is possible to provide a rear wheel suspension mounting device for a rear unicycle that can be performed.

請求項3の考案によれば、左バネ下具の取付部を、緩衝器連結用の支承軸に挿通される嵌装孔や、チェンケース取付用ボルトで共締めするための挿通孔で構成することができ、右バネ下具の取付部を、緩衝器連結用の支承軸に挿通される嵌装孔や、トルクリンク支承用支持軸部に嵌装するための装着孔で構成することができる。つまり、揺動アームに元々装備されている各種の螺着部を利用して、それら螺着部に適した取付部がバネ下具に設けられており、より合理的な後一輪車用後輪懸架取付装置とすることができる。  According to the invention of claim 3, the attachment portion of the left unsprung tool is constituted by an insertion hole inserted into the support shaft for connecting the shock absorber and an insertion hole for fastening together with a chain case mounting bolt. The mounting portion of the right unsprung tool can be constituted by a fitting hole inserted into the support shaft for connecting the shock absorber or a mounting hole for fitting into the support shaft portion for torque link support. . In other words, by using the various screwing parts originally provided on the swing arm, mounting parts suitable for these screwing parts are provided on the unsprung parts, and a more rational rear wheel suspension for the rear unicycle is provided. It can be a mounting device.

請求項4の考案によれば、左バネ上具の取付部を、揺動アーム支承用支持シャフトで共締めするための通し孔や、エンジン懸架ボルトで共締めするためのボルト用孔で構成することができ、右バネ上具の取付部を、揺動アーム支承用支持シャフトで共締めするための通し孔や、エンジン懸架ボルトで共締めするためのボルト用孔で構成することができる。つまり、車体フレームに元々装備されている各種の螺着部を利用して、それら螺着部に適した取付部がバネ上具に設けられており、より合理的な後一輪車用後輪懸架取付装置とすることができる。  According to the invention of claim 4, the mounting portion of the left spring upper tool is constituted by a through hole for fastening together with the swing arm support shaft and a bolt hole for fastening together with the engine suspension bolt. The attachment portion of the right spring upper tool can be constituted by a through hole for fastening together with a support shaft for swing arm support, or a bolt hole for fastening together with an engine suspension bolt. In other words, using various screwed parts originally installed on the body frame, the mounting parts suitable for these screwed parts are provided on the spring upper tool, and a more rational rear wheel suspension mounting for the rear unicycle. It can be a device.

標準仕様の自動二輪車全体を示し、(a)は左側面図、(b)は右側面図The entire motorcycle with standard specifications is shown, (a) is a left side view, and (b) is a right side view. 後輪懸架取付装置の左側部分を示す要部の左側面図Left side view of the main part showing the left part of the rear wheel suspension mounting device 後輪懸架取付装置の右側部分を示す要部の右側面図Right side view of the main part showing the right part of the rear wheel suspension mounting device 左ばね上具を示し、(a)は背面図、(b)は左側面図The left spring upper tool is shown, (a) is a rear view, (b) is a left side view. 右ばね上具を示し、(a)は平面図、(b)は右側面図The right spring upper tool is shown, (a) is a plan view, (b) is a right side view. 左ばね下具を示し、(a)は背面図、(b)は左側面図The left unsprung tool is shown, (a) is a rear view, and (b) is a left side view. 右ばね下具を示し、(a)は右側面図、(b)は正面図The right unsprung tool is shown, (a) is a right side view, (b) is a front view. エンジン懸架部の断面図を示し、(a)は標準仕様、(b)は特別仕様The cross section of the engine suspension is shown, (a) is a standard specification, (b) is a special specification 揺動アーム支持部の断面図を示し、(a)は標準仕様、(b)は特別仕様Sectional view of swing arm support is shown, (a) is a standard specification, (b) is a special specification 左右ばね下具の前側取付構造を示し、(a)は標準仕様の要部断面図、(b)は特別仕様の要部断面図The front side mounting structure of the left and right spring lower tool is shown. 左右ばね下具の後側取付構造を示し、(a)は標準仕様の片側の要部断面図、(b)は特別仕様の要部断面図The rear mounting structure of the left and right unsprung tool is shown, (a) is a cross-sectional view of the main part of one side of the standard specification, (b) is a cross-sectional view of the main part of the special specification 別構造の後輪懸架取付装置を示し、(a)は左側面図、(b)は右側面図The rear-wheel suspension mounting apparatus of another structure is shown, (a) is a left side view, (b) is a right side view. 他の機種における後輪懸架取付装置を示し、(a)は左側面図、(b)は右側面図The rear-wheel suspension mounting apparatus in another model is shown, (a) is a left side view, and (b) is a right side view.

以下に、本考案による後一輪車用後輪懸架取付装置(以下「後輪懸架取付装置」と略称する)の実施の形態を、図面を参照しながら説明する。実施例1〜3のものは、何れも自動二輪車の後輪懸架取付装置を示しているが、前2輪で後1輪の三輪車や、前輪が3以上で後輪が1つの形態のもの等、要は後輪が一つのものに本考案の適用が可能であり、それらを総称して「後一輪車」であると定義する。また、後一輪車に元々装備されている後輪懸架用のクッションユニットである緩衝器を、以下「CU」と略称するものとする、  Hereinafter, an embodiment of a rear wheel suspension mounting device for a rear unicycle according to the present invention (hereinafter abbreviated as “rear wheel suspension mounting device”) will be described with reference to the drawings. Examples 1 to 3 all show a rear-wheel suspension mounting device for a motorcycle, but the front two-wheel tricycle has one rear wheel, or the front wheel has three or more front wheels and one rear wheel. In short, the present invention can be applied to a single rear wheel, and these are collectively defined as a “rear unicycle”. In addition, a shock absorber that is a cushion unit for suspension of the rear wheel that is originally installed in the rear unicycle will be abbreviated as “CU” below.

図1に実施例1による後輪懸架取付装置Aの適用対象となる自動二輪車(後一輪車の一例)が示されており、板金製で側面視で略T字状を呈する車体フレーム1、前輪2を懸架支持するフロントフォーク3、後輪4を回転自在に支承する揺動アーム5、ミッションケース6M付のエンジン6、燃料タンク7、シート8、リヤフェンダ9、マフラー(排気管)10、ステップ11、操向ハンドル12、後輪4の左右それぞれに配備されるCU(緩衝器)13等を有して構成されている。後輪懸架取付装置Aの使用により、図1(a)、(b)に示すように、左右のCU13に代えて、仮想線で示す横臥姿勢の代替緩衝器16を装備することができる。CU13とは別の(異なる仕様の)代替緩衝器16は、コイルバネとダンパとを備える公知構造のものであるが、それ以外の構造でも良い。  FIG. 1 shows a motorcycle (an example of a rear unicycle) to which the rear wheel suspension mounting apparatus A according to the first embodiment is applied. The vehicle body frame 1 and front wheels 2 are made of sheet metal and have a substantially T-shape in a side view. A front fork 3 for supporting the suspension, a swing arm 5 for rotatably supporting the rear wheel 4, an engine 6 with a transmission case 6M, a fuel tank 7, a seat 8, a rear fender 9, a muffler (exhaust pipe) 10, a step 11, The steering handle 12 and CUs (buffers) 13 provided on the left and right sides of the rear wheel 4 are provided. By using the rear wheel suspension mounting device A, as shown in FIGS. 1A and 1B, it is possible to equip an alternative shock absorber 16 in a lying position shown by phantom lines in place of the left and right CUs 13. The alternative shock absorber 16 (different specification) different from the CU 13 has a known structure including a coil spring and a damper, but may have other structures.

左右のCU13は、車体フレーム1におけるシート8の下側となるフレーム後部と揺動アーム5の後端板部(後端部)5bとに亘って架設されており、若干前傾したほぼ上下向き姿勢にて装備されている。揺動アーム5は、平面視で略H形状を為し、その前端左右の枢支部5a,5aが車体フレーム1を挟み込む状態で、それら三者5a,1,5aに挿通される支持シャフト14を軸として上下揺動可能に車体フレーム1に支承されている。また、揺動アーム5の左右の後端板部5b,5bの左右間に配置される後輪4が、それら三者5b,4,5bに挿通される支軸であるリヤシャフト15により、回転可能に支持されている。  The left and right CUs 13 are laid across the frame rear part, which is the lower side of the seat 8 in the body frame 1, and the rear end plate part (rear end part) 5 b of the swing arm 5. Equipped with posture. The swing arm 5 has a substantially H shape in a plan view, and a support shaft 14 inserted through the three members 5a, 1 and 5a in a state where the left and right pivot portions 5a and 5a sandwich the vehicle body frame 1 therebetween. The shaft is supported on the body frame 1 so as to be swingable up and down. Further, the rear wheel 4 disposed between the left and right rear end plate portions 5b and 5b of the swing arm 5 is rotated by a rear shaft 15 which is a support shaft inserted through the three members 5b, 4 and 5b. Supported as possible.

実施例1による後輪懸架取付装置Aは、図2,図3に示すように、後輪4を回転可能に支持し、かつ、車体フレーム1に対して揺動可能に支承される揺動アーム5と車体フレーム1とに亘って架設されるCU13を、後輪4の左右それぞれに設けてある自動二輪車用の後輪懸架取付装置Aである。即ち、後輪懸架取付装置Aは、取外されたCU13とは別の代替緩衝器16の一対を、側面視で横臥姿勢又は横臥姿勢に近い前傾姿勢で後輪4の左右それぞれに装着可能とすべく、後付装備可能な左バネ上具LBと、右バネ上具RBと、左バネ下具LSと、右バネ下具RSと、連結パイプ17(図4参照)と、を有して構成されている。  As shown in FIGS. 2 and 3, the rear-wheel suspension mounting device A according to the first embodiment supports a rear wheel 4 so as to be rotatable and is supported so as to be swingable with respect to the vehicle body frame 1. 5 is a rear-wheel suspension mounting device A for a motorcycle in which CUs 13 extending between the vehicle body 5 and the vehicle body frame 1 are provided on the left and right sides of the rear wheel 4, respectively. That is, the rear-wheel suspension mounting device A can mount a pair of alternative shock absorbers 16 other than the removed CU 13 on the left and right sides of the rear wheel 4 in a sideways posture or a forward leaning posture close to a side-boiling posture. Therefore, it has a left spring upper tool LB, a right spring upper tool RB, a left spring lower tool LS, a right spring lower tool RS, and a connecting pipe 17 (see FIG. 4) that can be retrofitted. Configured.

左バネ上具LBは、図4に示すように、エンジン懸架ボルト20(図8参照)を通すための前孔(取付部、ボルト用孔の一例)18aを備える前方アーム部18と、支持シャフト14を通すための下孔(取付部、通し孔の一例)19aを備える下方アーム部19と、連結ボルト21(図2,3,4参照)を挿通すための上孔22aを備える上方アーム部22と、支承手段(ゴムブッシュ、球面軸受、等)24が圧入されるボス部(フレーム側連結部の一例)23とを備える金属製の部品である。支承手段24は、代替緩衝器16の前部取付部16Aをボルト連結するための部材である〔図5(a)参照〕。この例では、主鋼板25と補強鋼板26と筒材であるボス部23との三部材の溶接一体化によって構成されている。筒状のボス部23には、金属製内筒と金属製外筒とそれら両者の間に介装されるゴム層とで成る公知構造のゴムブッシュ24が圧入装着される。尚、Cは左右方向での車体中心である。  As shown in FIG. 4, the left spring upper tool LB includes a front arm portion 18 having a front hole (an example of a mounting portion and a bolt hole) 18 a for passing the engine suspension bolt 20 (see FIG. 8), and a support shaft. 14 is provided with a lower arm portion 19 provided with a lower hole (an example of an attachment portion and a through hole) 19a for passing through 14 and an upper arm portion provided with an upper hole 22a for inserting a connecting bolt 21 (see FIGS. 2, 3 and 4). 22 and a boss part (an example of a frame side connecting part) 23 into which a supporting means (rubber bush, spherical bearing, etc.) 24 is press-fitted. The support means 24 is a member for bolting the front mounting portion 16A of the alternative shock absorber 16 (see FIG. 5A). In this example, the main steel plate 25, the reinforcing steel plate 26, and the boss portion 23 that is a cylindrical member are integrated by welding. A rubber bush 24 having a known structure including a metal inner cylinder, a metal outer cylinder, and a rubber layer interposed therebetween is press-fitted to the cylindrical boss portion 23. C is the center of the vehicle body in the left-right direction.

右バネ上具RBは、図5に示すように、エンジン懸架ボルト20(図8参照)を通すための前孔(取付部,ボルト用孔の一例)28aを備える前方アーム部28と、支持シャフト14を通すための下孔(取付部、通し孔の一例)29aを備える下方アーム部29と、連結ボルト21(図2,3,4参照)を通すための上孔30aを備える上方アーム部30と、支承手段24が圧入されるボス部(フレーム側連結部の一例)23とを備える金属製の部品である。支承手段24は、代替緩衝器16の前部取付部16Aをボルト連結するための部材である〔図5(a)参照〕。この例では、前方アーム部28の前端に配置される筒状のスペーサ27と、主鋼板31と補強鋼板32とボス部23との四部材の溶接一体化によって構成されている。ボス部23には前述のゴムブッシュ24が圧入装着される。  As shown in FIG. 5, the right spring upper tool RB includes a front arm portion 28 including a front hole (an example of an attachment portion and a bolt hole) 28 a for passing the engine suspension bolt 20 (see FIG. 8), and a support shaft. 14 is provided with a lower arm portion 29 provided with a lower hole (an example of an attachment portion and a through hole) 29a for passing through 14 and an upper arm portion 30 provided with an upper hole 30a through which the connecting bolt 21 (see FIGS. 2, 3 and 4) is passed. And a boss portion (an example of a frame side connecting portion) 23 into which the support means 24 is press-fitted. The support means 24 is a member for bolting the front mounting portion 16A of the alternative shock absorber 16 (see FIG. 5A). In this example, a cylindrical spacer 27 arranged at the front end of the front arm portion 28, and four members of a main steel plate 31, a reinforcing steel plate 32, and a boss portion 23 are integrated by welding. The rubber bush 24 is press-fitted and attached to the boss portion 23.

左バネ下具LSは、図6に示すように、揺動アーム5の左アーム5Lにボルトオンされる部品であって、CU13取付用の支承軸(既設連結部及び螺着部の一例)5cを通すための後孔(取付部、嵌装孔の一例)33aと、チェンケース34の前側部分を左アーム5Lに固着されている前ステー(螺着部の一例)5dに取付るボルト50で共締めするための前孔(取付部、挿通孔の一例)59と、代替緩衝器16の後部取付部16Bをボルト連結するための連結部(揺動アーム側連結部の一例)35とを備える金属製のものである。この例では複数の軽減孔36を有する主鋼板37に、後孔33aを有する補強板38、及び後孔33aを有する筒ボス33が溶着一体化されて成る本体部39と、これに前後2本のボルト40,40を用いて取付けられる連結部35とで左バネ下具LSが構成されている。  As shown in FIG. 6, the left unsprung tool LS is a part that is bolted to the left arm 5 </ b> L of the swing arm 5, and includes a support shaft (an example of an existing connecting portion and a screwed portion) 5 c for attaching the CU 13. A rear hole (an example of an attachment portion and a fitting hole) 33a for passing through and a bolt 50 for attaching the front side portion of the chain case 34 to a front stay (an example of a screwing portion) 5d fixed to the left arm 5L. Metal having a front hole (an example of an attachment portion and an insertion hole) 59 for fastening, and a connection portion (an example of a swing arm side connection portion) 35 for bolt-connecting the rear attachment portion 16B of the alternative shock absorber 16 It is made of. In this example, a main plate 39 having a plurality of mitigating holes 36, a reinforcing plate 38 having a rear hole 33a, and a cylindrical boss 33 having a rear hole 33a are welded and integrated, and a main body 39 and two front and rear thereof. The left unsprung tool LS is composed of the connecting portion 35 attached using the bolts 40, 40.

本体部39には、二本のボルト40,40で連結部35を螺着するための孔39aが前後に並んで計四箇所に形成されており、図6等においては、最前の第1孔と前から三番目の第3孔を用いて螺着されている状態が描かれている。連結部35は、連結主板35aと屈曲主板35bとワッシャ板35c等を有して構成されている。図示は省略するが、前から二番目の第2孔と最後の第4孔とを用いて連結部35を本体部39に取付ける状態も可能に構成されている。この前後二箇所の交互付替え可能構造により、代替緩衝器16の長さが異なる場合にも対応して取付けることが可能とされている。  In the main body 39, holes 39a for screwing the connecting portion 35 with the two bolts 40, 40 are formed in a total of four places along the front and rear, and in FIG. And the state screwed using the 3rd 3rd hole from the front is drawn. The connecting portion 35 includes a connecting main plate 35a, a bent main plate 35b, a washer plate 35c, and the like. Although illustration is omitted, a state in which the connecting portion 35 is attached to the main body portion 39 using the second second hole and the last fourth hole from the front is also possible. With this structure in which the front and rear parts can be alternately replaced, it is possible to mount the alternative shock absorber 16 corresponding to different lengths.

右バネ下具RSは、図7に示すように、揺動アーム5の右アーム5Rにボルトオンされる部品であって、CU13取付用の支承軸(既設連結部及び螺着部の一例)5cを通すための前後一対の後孔41,41、トルクリンク54(図3参照)の前部を係合支持すべく右アーム5Rに固着される支持軸部(螺着部の一例)5eを通すための前孔42、代替緩衝器16の後部取付部16Bをボルト連結するための連結部(揺動アーム側連結部の一例)43とを備える金属製のものである。この例では、一対の後孔41,41、連結部43、軽減孔44を有する本体部45と、前孔42を有する脚部46とを前後二本のボルト・ナット47,47で螺着することで右バネ下具RSが構成されている。  As shown in FIG. 7, the right unsprung tool RS is a part that is bolted on to the right arm 5 </ b> R of the swing arm 5, and includes a support shaft (an example of an existing connecting portion and a screwed portion) 5 c for attaching the CU 13. A pair of front and rear rear holes 41, 41 for passing through and a support shaft portion (an example of a screwed portion) 5e fixed to the right arm 5R to engage and support the front portion of the torque link 54 (see FIG. 3). And a connecting portion (an example of a swinging arm side connecting portion) 43 for connecting the rear mounting portion 16B of the alternative shock absorber 16 with a bolt. In this example, a body portion 45 having a pair of rear holes 41 and 41, a connecting portion 43 and a reduction hole 44, and a leg portion 46 having a front hole 42 are screwed together by two bolts and nuts 47 and 47 at the front and rear. Thus, the right unsprung tool RS is configured.

本体部45は、一対の後孔41,41を備えるブロック片45A、主鋼板45B、コ字状の連結部43となる屈曲鋼板45C、及び補強板45Dを溶接一体化することで形成されている。脚部46は、前後に並ぶ三箇所の支持孔48及び大前孔42Aを備える主脚板46Aと、小前孔42Bを有して前後一対の小ボルト49,49で主脚板46Aに螺着される副脚板46Bとで形成されている。大前孔42Aとこれより小径の小前孔42Bとは互いに同じ軸心を有する前後に長い長孔であり、これら両者42A,42Bで前孔42が形成されている。  The main body 45 is formed by welding and integrating a block piece 45A including a pair of rear holes 41, 41, a main steel plate 45B, a bent steel plate 45C serving as a U-shaped connecting portion 43, and a reinforcing plate 45D. . The leg portion 46 is screwed to the main leg plate 46A by a pair of front and rear small bolts 49, 49 having a main leg plate 46A having three support holes 48 and a large front hole 42A arranged in the front-rear direction and a small front hole 42B. And the secondary leg plate 46B. The large front hole 42A and the small front hole 42B having a smaller diameter are elongated holes that are long in the front and rear directions and have the same axial center, and the front hole 42 is formed by these both 42A and 42B.

前後一対の後孔41,41の前後スパンと、前後三箇所の支持孔48のうちの前後で隣合うものどうしの前後スパンとは互いに同じ値で、かつ、左バネ下具LSの「前後二箇所の交互付替え可能構造」における前後スパンとも同じ値に設定されている。従って、前側二箇所の支持孔48及び後側の後孔41とを用いる場合(図3,図7参照)と、後側二箇所の支持孔48及び前側の後孔41とを用いて長さのやや長い代替緩衝器16を設ける場合とに切換可能に構成されている。  The front and rear spans of the pair of front and rear rear holes 41 and 41 and the front and rear spans of adjacent ones of the three front and rear support holes 48 have the same value, and the “front and rear two” of the left spring lower tool LS. The front and rear spans in the “placeable alternation structure” are set to the same value. Therefore, when using the front support holes 48 and the rear rear holes 41 (see FIGS. 3 and 7), the length of the support holes 48 and the front rear holes 41 are two. It is configured to be switchable when a slightly longer alternative shock absorber 16 is provided.

次に、一対のCU13を縦向き姿勢で装備する標準仕様(ノーマル後輪懸架仕様:図1参照)に代えて、一対の代替緩衝器16を横臥姿勢で装備する特別仕様(横臥二本サス構造)に切換える後輪懸架取付装置Aの構造や作業手順等について説明する。  Next, instead of the standard specification (normal rear wheel suspension specification: see FIG. 1) that equips a pair of CUs 13 in a vertical orientation, a special specification (a double-side suspension structure with a pair of alternative shock absorbers 16) The structure, work procedure, etc. of the rear wheel suspension mounting device A to be switched to will be described.

まず、左バネ上具LB及び右バネ上具RBは、いずれもエンジン6を車体フレーム1に螺着固定するためのエンジン懸架ボルト20と、揺動アーム5を上下揺動可能に車体フレーム1に支持するための支持シャフト14とを用いた共締め構造によって車体フレーム1に取付け固定される。この場合、元のエンジン懸架ボルト20及び支持シャフト14では長さが足りなくなるので、それぞれ長さが所定量ずつ長くされた延長懸架ボルト20Eと延長支持軸14Eとを新たに用いる。即ち、標準仕様における支持シャフト14とエンジン懸架ボルト20とを抜き取り、代わりに延長支持軸14Eと延長懸架ボルト20Eとを用いることで、図2,図3に示すように、左右のバネ上具LB,RBを車体フレーム1に共締め装着することができる。  First, the left spring upper tool LB and the right spring upper tool RB both have an engine suspension bolt 20 for screwing and fixing the engine 6 to the vehicle body frame 1 and the vehicle arm frame 1 so that the swing arm 5 can swing up and down. It is fixedly attached to the vehicle body frame 1 by a co-fastening structure using a support shaft 14 for supporting. In this case, since the original engine suspension bolt 20 and the support shaft 14 are insufficient in length, the extension suspension bolt 20E and the extension support shaft 14E each having a length increased by a predetermined amount are newly used. That is, by removing the support shaft 14 and the engine suspension bolt 20 in the standard specification, and using the extension support shaft 14E and the extension suspension bolt 20E instead, the left and right spring upper tools LB as shown in FIGS. , RB can be attached to the vehicle body frame 1 together.

エンジン懸架ボルト20に関して、標準仕様では、図8(a)に示すように、車体フレーム1を構成する左右の縦側壁1b、1cの間にミッションケース6Mから上方突出する取付ブラケット6mが介装されており、左縦側壁1bの左側壁孔(螺着部の一例)1Bと取付ブラケット6mと右縦側壁1cの右側壁孔(螺着部の一例)1Cとに左から右に向けてエンジン懸架ボルト14を通して長ナット52で締付固定してある。長ナット52の反対側(右側)端には、マフラー10の前後中間部位を固定する中間ステー10aがボルト64止めされている。つまり、エンジン懸架ボルト20用の長ナット52は、マフラー10を車体フレーム1に取付けるための螺着手段を兼用している。  With respect to the engine suspension bolt 20, in the standard specification, as shown in FIG. 8A, a mounting bracket 6m protruding upward from the transmission case 6M is interposed between the left and right vertical side walls 1b and 1c constituting the vehicle body frame 1. The left side wall hole (an example of a screwed portion) 1B of the left vertical side wall 1b, the mounting bracket 6m, and the right side wall hole (an example of a screwed portion) 1C of the right vertical side wall 1c are suspended from the left to the right. The bolt 14 is fastened and fixed with a long nut 52. At the opposite side (right side) end of the long nut 52, an intermediate stay 10 a that fixes the front and rear intermediate portions of the muffler 10 is fastened with bolts 64. That is, the long nut 52 for the engine suspension bolt 20 also serves as a screwing means for attaching the muffler 10 to the vehicle body frame 1.

特別仕様では、図8(b)に示すように、左縦側壁1bの左隣に左バネ上具LBが、かつ、右縦側壁1bの右隣に右バネ上具RBを位置させた状態で、延長懸架ボルト20Eを前孔28a、右側壁孔1C、取付ブラケット6m、左側壁孔1B、前孔18aに通し、車体フレーム1の左側にてナット締めする。これにより、左バネ上具LBの前方アーム部18及び右バネ上具RBの前方アーム部28が、延長懸架ボルト20Eにより取付ブラケット6mとの共締め状態で車体フレーム1に固定される。前述の中間ステー10aは、延長懸架ボルト20Eのボルト頭20eに螺着されるボルト53により、延長懸架ボルト20Eを介して車体フレーム1に固定される。  In the special specification, as shown in FIG. 8B, the left spring upper tool LB is positioned on the left side of the left vertical side wall 1b, and the right spring upper tool RB is positioned on the right side of the right vertical side wall 1b. The extended suspension bolt 20E is passed through the front hole 28a, the right side wall hole 1C, the mounting bracket 6m, the left side wall hole 1B, and the front hole 18a, and tightened with a nut on the left side of the vehicle body frame 1. As a result, the front arm portion 18 of the left spring upper tool LB and the front arm portion 28 of the right spring upper tool RB are fixed to the vehicle body frame 1 together with the mounting bracket 6m by the extension suspension bolt 20E. The aforementioned intermediate stay 10a is fixed to the vehicle body frame 1 via the extended suspension bolt 20E by a bolt 53 that is screwed onto the bolt head 20e of the extended suspension bolt 20E.

支持シャフト14に関して、標準仕様では、図9(a)に示すように、各アーム5R,5Lの前端部に嵌装されている軸受具51が、その内筒51aが支持筒(螺着部の一例)1aの左右両側に位置する状態で車体フレーム1を挟み込んで配置されており、左右の内筒51a及び支持筒1aに通される支持シャフト14のナット締めにより、揺動アーム5を上下揺動可能に車体フレーム1に支持する構造である。尚、軸受具51は、各アーム5R,5Lに圧入される外筒51bと、内筒51aと、それらの間に介装されるブッシュ材(ゴム等)51cとから成る公知構造のものである。  With respect to the support shaft 14, in the standard specification, as shown in FIG. 9A, the bearing tool 51 fitted in the front end portion of each arm 5 </ b> R, 5 </ b> L has an inner cylinder 51 a that is a support cylinder (a screwed portion). An example) The vehicle body frame 1 is sandwiched between the left and right sides of 1a, and the swing arm 5 is swung up and down by tightening the nuts of the support shaft 14 passed through the left and right inner cylinders 51a and the support cylinder 1a. It is a structure that is supported by the body frame 1 so as to be movable. The bearing tool 51 has a known structure including an outer cylinder 51b press-fitted into the arms 5R and 5L, an inner cylinder 51a, and a bush material (rubber or the like) 51c interposed therebetween. .

特別仕様では、図9(b)に示すように、左側の軸受具51の左隣に左バネ上具LBが、かつ、右側の軸受具51の右隣に右バネ上具RBを位置させた状態で、支持シャフト14に代えて延長支持軸14Eを下孔19a、内筒51a、支持筒1a、内筒51a、下孔29aに通してナット締めする。これにより、左バネ上具LBの下方アーム部19及び右バネ上具RBの下方アーム部29が、延長支持軸14Eにより左右の軸受具51との共締め状態で車体フレーム1に固定される。  In the special specification, as shown in FIG. 9B, the left spring upper tool LB is positioned on the left side of the left bearing tool 51, and the right spring upper tool RB is positioned on the right side of the right bearing tool 51. In this state, instead of the support shaft 14, the extended support shaft 14E is passed through the lower hole 19a, the inner cylinder 51a, the support cylinder 1a, the inner cylinder 51a, and the lower hole 29a and tightened with a nut. As a result, the lower arm portion 19 of the left spring upper tool LB and the lower arm portion 29 of the right spring upper tool RB are fixed to the vehicle body frame 1 in a state of being fastened together with the left and right bearing tools 51 by the extension support shaft 14E.

左右のバネ下具LS,RSについて説明する。揺動アーム5の前部に関して、標準仕様では、図10(a)に示すように、左側においては、チェンケース34の前取付片34aが、左アーム5Lの前ステー5dにボルト50を用いて締付固定されている。右側においては、右アーム5Rに固着される支持軸部5eにトルクリンク54の前端部が挿通されて、平ワッシャ55とナット56とによって抜け止めされるとともに、支持軸部5eに嵌装されるコイルバネ57によって平ワッシャ55側に押圧付勢されている。  The left and right unsprung tools LS and RS will be described. With respect to the front portion of the swing arm 5, in the standard specification, as shown in FIG. 10A, on the left side, the front mounting piece 34 a of the chain case 34 is bolted to the front stay 5 d of the left arm 5 L. Tightened and fixed. On the right side, the front end portion of the torque link 54 is inserted into the support shaft portion 5e fixed to the right arm 5R, and is prevented from being detached by the flat washer 55 and the nut 56, and is fitted to the support shaft portion 5e. The coil spring 57 is pressed and biased toward the flat washer 55 side.

特別仕様では、図10(b)に示すように、左側においては、ボルト50に代えて、それより長さの長い延長ボルト50Eを用い、左バネ下具LSの前端部を前取付片34aの左隣に位置されての共締め状態で前孔59に通して前ステー5dに締付固定することにより、左バネ下具LSの前端部が左アーム5Lに取付られる。右側においては、コイルバネ57が取り去られた支持軸部5eにトルクリンク54を奥に押込みながら大前孔42Aを外嵌させ、小径雄ネジ部(符記省略)に小前孔42Bが嵌装されている副脚板46Bをナット止めすることにより、脚部46が支持軸部5eに嵌装固定される。尚、仮想線で示すように、トルクリンク54の振れ動きを規制すべくゴム等の弾性ワッシャ58を、コイルバネ57に代えて支持軸部5eに嵌装しても良い。  In the special specification, as shown in FIG. 10B, on the left side, an extension bolt 50E having a longer length is used instead of the bolt 50, and the front end of the left unsprung tool LS is attached to the front mounting piece 34a. The front end portion of the left unsprung tool LS is attached to the left arm 5L by passing through the front hole 59 and being fastened to the front stay 5d in a co-tightened state positioned on the left side. On the right side, the large front hole 42A is fitted to the support shaft 5e from which the coil spring 57 has been removed while the torque link 54 is pushed inward, and the small front hole 42B is fitted to the small diameter male screw portion (not shown). By fixing the secondary leg plate 46B with a nut, the leg portion 46 is fitted and fixed to the support shaft portion 5e. As indicated by phantom lines, an elastic washer 58 such as rubber may be fitted to the support shaft portion 5e in place of the coil spring 57 in order to restrict the swing movement of the torque link 54.

揺動アーム5の後部に関して、標準仕様では、図11(a)に示すように、左側においては、左アーム5Lの後端板部5bに貫通固着される片持ち状の支承軸5cに、CU13の下端取付部13aが嵌装されてナット締めされている。右側の右アーム5Rに関しても同等の構造であり、図11(a)で代用する。  With respect to the rear portion of the swing arm 5, in the standard specification, as shown in FIG. 11A, on the left side, a CU13 is attached to a cantilevered support shaft 5c penetratingly fixed to the rear end plate portion 5b of the left arm 5L. The lower end mounting portion 13a is fitted and nut-tightened. The right arm 5R on the right side has the same structure and is substituted in FIG.

特別仕様では、図11(b)に示すように、左側においては、CU13の外された支承軸5cに後孔33aを差し込んで筒ボス33をナット締めすることにより、左バネ下具LSの後端部が左アーム5Lに取付られる。右側においては、CU13の外された支承軸5cに後孔41を差し込んで主鋼板45B及びロック片45Aをナット締めすることにより、右バネ下具RSの後端部が右アーム5Lに取付られる。  In the special specification, as shown in FIG. 11B, on the left side, a rear hole 33a is inserted into the support shaft 5c from which the CU 13 has been removed, and the cylindrical boss 33 is tightened with a nut. The end is attached to the left arm 5L. On the right side, the rear end portion of the right spring lower tool RS is attached to the right arm 5L by inserting the rear hole 41 into the support shaft 5c removed from the CU 13 and tightening the main steel plate 45B and the lock piece 45A with nuts.

さて、図2,3に示す後輪懸架取付装置Aの装着状態では、図4(a)に示すように、左バネ上具LBの上方アーム部22と右バネ上具RBの上方アーム部30とが、それらの左右間に介装される連結パイプ17を用いての連結ボルト21締めにより連結一体化されている。この左右の上方アーム部22,30どうしを連結する構造により、左右バネ上具LB,RBの車体フレーム1への支持強度の補強が図られていおり、連結パイプ17は、車体フレーム1とリヤフェンダ9との前後間に存在する空間部Sを無理なく通して配置されている。尚、上記連結構造(連結パイプ及びボルト17,21)は省略可能である。  2 and 3, in the mounted state of the rear wheel suspension mounting device A, as shown in FIG. 4A, the upper arm portion 22 of the left spring upper tool LB and the upper arm portion 30 of the right spring upper tool RB. Are connected and integrated by tightening the connecting bolt 21 using a connecting pipe 17 interposed between the left and right. The structure for connecting the left and right upper arm portions 22 and 30 reinforces the support strength of the left and right spring upper tools LB and RB to the vehicle body frame 1, and the connection pipe 17 is connected to the vehicle body frame 1 and the rear fender 9. It is arranged through the space S that exists between the front and rear without any difficulty. The connection structure (connection pipe and bolts 17 and 21) can be omitted.

左バネ上具LBは、図2,4に示すように、フレーム左側壁1bに対して着脱可能であって左方に突出する蓋カバー62との緩衝を避けるように、前方アーム部18及び上方アーム部22が形状設定されている。図4(a)に示すように、左バネ上具LBの下方アーム部19は、ミッションケースの6Mに取付けられる左カバー(チェンカバー)6Rの後部上部との干渉を避けるべく、左外方に湾曲する迂回形状に形成すれば好ましい。右バネ上具RBは、図3,5に示すように、フレーム右側壁1cから右方に突出する膨出部63及びミッションケース6Mとの緩衝を避けるように、前方アーム部28及び上方アーム部30が形状設定されている。  As shown in FIGS. 2 and 4, the left spring upper tool LB is detachably attached to the left side wall 1b of the front arm 18 and the upper side so as to avoid buffering with the lid cover 62 protruding leftward. The arm portion 22 is set in shape. As shown in FIG. 4 (a), the lower arm portion 19 of the left spring upper tool LB extends outward to the left to avoid interference with the rear upper portion of the left cover (chain cover) 6R attached to the transmission case 6M. It is preferable to form a detoured shape that curves. As shown in FIGS. 3 and 5, the right spring upper tool RB includes the front arm portion 28 and the upper arm portion so as to avoid buffering between the bulging portion 63 protruding rightward from the frame right side wall 1c and the transmission case 6M. 30 is set.

右バネ上具RB及び右側の代替緩衝器16の前端部とは、図3に示すように、車体フレーム1とマフラー10との左右間の狭い空間部分に丁度嵌り込んで配置されている。寸法誤差や製品誤差等によって代替緩衝器16又はその部分の取付ボルト・ナットがマフラー10と干渉する場合には、マフラー1の内側部分を叩く等して若干右外側に寄せ変形させて対応することができる。  As shown in FIG. 3, the right spring upper tool RB and the front end portion of the right alternative shock absorber 16 are disposed so as to be fitted into a narrow space portion between the left and right of the vehicle body frame 1 and the muffler 10. If the alternative shock absorber 16 or its mounting bolts and nuts interfere with the muffler 10 due to dimensional errors or product errors, etc., handle the inner part of the muffler 1 by moving it slightly to the right and deforming it. Can do.

左バネ下具LSは、図2や図6に示すように、要はチェンケース34の左脇にて左アーム5Lに螺着されるものであり、チェン65をカバーするチェンケース34の後取付片34bを左アーム5Lに取付けるための2個のボルト60,60との干渉を防止する避け孔61が対応して2箇所に形成されている。また、代替緩衝器16を左右方向でなるべく左横外に張り出さないようにするために、チェンケース34の上に連結部35が配置されるよう、本体部39に対して連結部35を右側にオフセットさせてボルト連結する構造としてある。尚、代替緩衝器16の長さが1種類に定まっている場合には、本体部39と連結部35とが溶着等によて分離不能に一体化される構造の左バネ下具LSとしても良い。  The left unsprung tool LS is, as shown in FIGS. 2 and 6, basically screwed to the left arm 5 </ b> L on the left side of the chain case 34 and is attached to the chain case 34 that covers the chain 65. Avoidance holes 61 for preventing interference with the two bolts 60, 60 for attaching the piece 34b to the left arm 5L are formed in two locations correspondingly. Further, in order to prevent the alternative shock absorber 16 from projecting to the left and right outside as much as possible in the left-right direction, the connecting portion 35 is placed on the right side with respect to the main body portion 39 so that the connecting portion 35 is disposed on the chain case 34. The structure is such that the bolt is connected to the offset. In addition, when the length of the alternative shock absorber 16 is fixed to one type, the left-side spring lower tool LS having a structure in which the main body 39 and the connecting portion 35 are integrated so as not to be separated by welding or the like may be used. good.

実施例1においては、左バネ下具LSの前部は、チェンケース34の前側取付部(前ステー5d)を利用しての共締め構造で左アーム5Lに、そして、右バネ下具RSの前部は、トルクリンク54の取付部(支持軸部5e)を利用しての螺着によって右アーム5Rにそれぞれ固定されている。これに対して、揺動アーム5に螺着等の適当な取付手段がない場合等には、図示は省略するが、各バネ下具LS,RSの前部に、各アーム5L,5Rを外から囲って圧接保持可能な部位を設け、直接各アーム5L,5Rを挟み込んで締付固定させる構造としても良い。  In the first embodiment, the front part of the left spring lower tool LS is connected to the left arm 5L by a joint tightening structure using the front mounting part (front stay 5d) of the chain case 34, and the right spring lower tool RS The front portions are respectively fixed to the right arm 5R by screwing using the attachment portion (support shaft portion 5e) of the torque link 54. On the other hand, when there is no suitable attachment means such as screwing on the swing arm 5, illustration is omitted, but the arms 5 L and 5 R are attached to the front portions of the unsprung tools LS and RS. It is good also as a structure which provides the site | part which can be pressed and hold | maintained from between, and clamps and fixes each arm 5L and 5R directly.

実施例1による後輪懸架取付装置Aは、左右のバネ上具LB,RB、左右のバネ下具LS,RS、連結パイプ17、連結ボルト21、延長支持シャフト14E、延長懸架ボルト20E、延長ボルト50E、マフラー10用のボルト53とによって構成されている。故に、支持シャフト14を延長支持シャフト14Eに、エンジン懸架ボルト20を延長懸架ボルト20Eに、チェンケース34の前側取付ボルト50を延長ボルト50Eにそれぞれ変更することにより、元となる自動二輪車における後輪懸架構造以外の状態を維持したまま、後輪懸架性能に優れる特別仕様(横臥二本サス構造)に変更することができる。  The rear-wheel suspension mounting device A according to the first embodiment includes left and right spring upper tools LB and RB, left and right spring lower tools LS and RS, a connection pipe 17, a connection bolt 21, an extension support shaft 14E, an extension suspension bolt 20E, and an extension bolt. 50E and the muffler 10 bolt 53. Therefore, by changing the support shaft 14 to the extension support shaft 14E, the engine suspension bolt 20 to the extension suspension bolt 20E, and the front mounting bolt 50 of the chain case 34 to the extension bolt 50E, the rear wheel in the original motorcycle is changed. While maintaining the state other than the suspension structure, it can be changed to a special specification (Yokohama two-suspension suspension structure) excellent in rear wheel suspension performance.

例えば、特別仕様にするにはチェンケースを外さないと付かないとか、取付のためのブラケット類を揺動アーム5に溶着しないといけない、といった面倒な改造が不要であり、ユーザー自身での組付けも可能となる便利な後付キットパーツ構造の後輪懸架取付装置Aが実現できている。つまり、主となる部品である左右のバネ上具LB,RB及び左右のバネ下具LS,RSは、全て既存の螺着手段やその取付部品を用いて取付けられるように構成されているからであり、従って、組付けるときの作業と逆の作業を行うことにより、一対のCU13,13を用いる元の標準仕様に戻すことが可能であり、かつ、そのときの外観も元の状態に戻る。  For example, in order to make a special specification, it is necessary to remove the chain case or to attach the mounting brackets to the swing arm 5 without the need for troublesome modifications. The rear-wheel suspension mounting device A with a convenient retrofit kit part structure that can also be realized. That is, the left and right sprung tools LB and RB and the left and right unsprung tools LS and RS, which are the main parts, are all configured to be mounted using existing screwing means and their mounting parts. Therefore, it is possible to return to the original standard specification using the pair of CUs 13 and 13 by performing the work reverse to the work at the time of assembly, and the appearance at that time also returns to the original state.

実施例1においては、代替緩衝器16として、前部取付部16Aがコ字状を呈する二股プレートに、かつ、後部取付部16Bが、軸支ブッシュ(符記省略)が内嵌される枢支部にそれぞれ形成されている形態のものを用いているが、両端側共に枢支部構造のもの、両端側共に二股プレート構造のもの、或いは前部取付部16Aが枢支部構造で後部取付部16Bが二股プレート構造であるもの等、種々の構造の緩衝器が可能である。従って、左右のバネ上具LB,RBや左右のバネ下具LS,RSにおける緩衝器を連結する部分の構造も対応して変更可能である。  In the first embodiment, as the alternative shock absorber 16, the front mounting portion 16 </ b> A is a bifurcated plate having a U-shape, and the rear mounting portion 16 </ b> B is a pivotal support portion in which a shaft support bush (not shown) is fitted. However, both ends have a pivotal support structure, both ends have a bifurcated plate structure, or the front mounting part 16A has a pivotal support structure and the rear mounting part 16B has a bifurcated structure. Various types of shock absorbers are possible, such as those having a plate structure. Therefore, the structure of the portion connecting the shock absorbers in the left and right spring upper tools LB and RB and the left and right unsprung tools LS and RS can be changed correspondingly.

図12に示すように、揺動アーム5の支承軸5cを兼用する構造の後輪懸架取付装置Aでも良い。即ち、揺動アーム5におけるCU13の下部を連結する部分である支承軸5cを、そのまま代替緩衝器16の後部取付部16Bを嵌装する軸、即ち揺動アーム側連結部として用いる構造であって、この場合は左右のバネ上具LB,RBの主に2部品で後輪懸架取付装置Aが構成される。尚、本実施例2による図12(a),(b)においては、実施例1のものと同じ箇所には同じ符号を付してその説明が為されたものであるとする。  As shown in FIG. 12, a rear-wheel suspension mounting device A that also serves as the support shaft 5c of the swing arm 5 may be used. That is, the support shaft 5c, which is a portion connecting the lower part of the CU 13 in the swing arm 5, is used as a shaft for fitting the rear mounting portion 16B of the alternative shock absorber 16, that is, the swing arm side connection portion. In this case, the rear wheel suspension mounting device A is composed of mainly two parts, the left and right spring upper tools LB and RB. In FIGS. 12A and 12B according to the second embodiment, the same portions as those in the first embodiment are denoted by the same reference numerals and the description thereof is made.

左バネ上具LB及び右バネ上具RBは、図12(a),(b)にそれぞれ示すように、代替緩衝器16の前部取付部16Aを支承するものであって、延長支持シャフト14Eと延長懸架ボルト20Eとによって車体フレーム1に取付けられている。実施例1の連結パイプ17のような左右のバネ上具LB,RBを相互連結する手段は省略されている。実施例2による自動二輪車においては、図12(a)に示すように、揺動アーム5の揺動支軸である延長支持シャフト14Eより前方にある程度離れてステップ11が配置されているので、一点破線で示すCU13と同様にチェンケース34の左外側に張出し配置される左側の代替緩衝器16が、脹脛(ふくらはぎ)等のライダーの身体(脚)に邪魔となることはない。このように、揺動アーム5の支承軸5cを揺動アーム側連結部に兼用する構成とすれば、実施例1の場合に比べて少ない部品点数でより構造簡単でより廉価に後輪懸架取付装置Aを提供することが可能になる。  The left spring upper tool LB and the right spring upper tool RB support the front mounting portion 16A of the alternative shock absorber 16 as shown in FIGS. 12 (a) and 12 (b), respectively, and the extended support shaft 14E. And the extension suspension bolt 20E. The means for interconnecting the left and right sprung tools LB and RB, such as the connecting pipe 17 of the first embodiment, is omitted. In the motorcycle according to the second embodiment, as shown in FIG. 12 (a), the step 11 is arranged at some distance forward from the extended support shaft 14E that is the swinging support shaft of the swinging arm 5. Similar to the CU 13 indicated by the broken line, the left-side alternative shock absorber 16 that projects from the left outer side of the chain case 34 does not interfere with the rider's body (leg) such as calves. If the support shaft 5c of the swing arm 5 is also used as the swing arm side connecting portion in this way, the rear wheel suspension mounting is simpler and less expensive with a smaller number of parts than in the first embodiment. Device A can be provided.

実施例1の後輪懸架取付装置Aでは、左側の代替緩衝器16がチェンケース34の上に配置されて左外方への張出しが抑制される利点を有している。そこで、図12(a)に仮想線で示すように、チェンケース34の前部と共締めする延長ボルト50Eを用いる等して左バネ下具LSを着脱可能に付設し、左外方への張出しを抑制すべくチェンケース34の上に代替緩衝器16を配備させる構成を採ることも可能である。そして、図12(b)に仮想線で示すように、さらに右バネ下具RSも追加して右側の代替緩衝器16を上方に持上げ設定し、その側面視での配置状況が左側の代替緩衝器16と同じとしても良い。この場合、右バネ下具RSの前部が右アーム5Rを抱き込んでのボルト締めによって圧着固定される構造を採ることができる。  The rear wheel suspension mounting device A of the first embodiment has an advantage that the left-side alternative shock absorber 16 is disposed on the chain case 34 and the overhang to the left is suppressed. Therefore, as shown by the phantom line in FIG. 12A, the left spring lower tool LS is detachably attached using, for example, an extension bolt 50E that is fastened together with the front portion of the chain case 34. It is also possible to adopt a configuration in which the alternative shock absorber 16 is provided on the chain case 34 in order to suppress overhang. Then, as indicated by phantom lines in FIG. 12 (b), a right unsprung tool RS is further added and the right alternative shock absorber 16 is lifted upward, and the arrangement state in the side view is the left alternative shock absorber. It may be the same as the vessel 16. In this case, it is possible to adopt a structure in which the front part of the right unsprung tool RS is pressure-bonded and fixed by bolting with the right arm 5R held.

図13に示すように、CU13の上部を車体フレーム1に連結するための取付軸(螺着部の一例)1dと揺動アームの支持シャフト14とに亘って架設装備される構造の左右のバネ上具LB,RBを有し、かつ、揺動アーム5の支承軸5cを兼用する構造の後輪懸架取付装置Aでも良い。即ち、左右のバネ上具LB,RBは、図13(a),(b)にそれぞれ仮想線で示すように、シート8の下にて車体フレーム1に横側方突出状態で装備されている取付軸1dに嵌装される上孔(取付部の一例)66と、支持シャフト14(14E)を介して支持筒(螺着部の一例)1aに嵌装される下孔(取付部の一例)67とを有してネジ止めされる長尺部材で成り、そのやや下方寄りの上下中間箇所にCU13を連結するフレーム側連結部23が形成されている。尚、実施例3による図13(a),(b)においても、実施例1のものと同じ箇所には同じ符号を付してその説明が為されたものであるとする。  As shown in FIG. 13, the left and right springs are structured to be installed and installed across a mounting shaft (an example of a screwed portion) 1 d for connecting the upper portion of the CU 13 to the vehicle body frame 1 and a support shaft 14 of the swing arm. A rear-wheel suspension mounting device A having the upper tools LB and RB and also having the support shaft 5c of the swing arm 5 may be used. That is, the left and right sprung tools LB and RB are mounted on the vehicle body frame 1 in a laterally protruding state under the seat 8, as indicated by phantom lines in FIGS. 13 (a) and 13 (b). An upper hole (an example of an attachment portion) 66 fitted to the attachment shaft 1d, and a lower hole (an example of an attachment portion) fitted to the support cylinder (an example of a screwed portion) 1a via the support shaft 14 (14E). ) 67 and a frame-side connecting portion 23 that connects the CU 13 to a vertically middle portion slightly below. In FIGS. 13A and 13B according to the third embodiment, the same portions as those in the first embodiment are denoted by the same reference numerals and the description thereof is made.

さて、実施例3に示す自動二輪車において標準仕様から特別仕様に切換える手順を、左側のものは図13(a)を、そして右側のものは図13(b)を参照して説明する。即ち、後輪4の左右いずれにおいても、実線で示されるCU13を取付軸1dから外し、そのCU13の外された取付軸1dと、支持シャフト14から取り替えられた延長支持シャフト14Eとに亘って左バネ上具LB及び右バネ上具RBを嵌めて取付ける。それからCU13を、支承軸5cを中心にしての前倒し揺動移動する等して上部取付部(符記省略)をフレーム側連結部23に連結する、という具合になる。  Now, the procedure for switching from the standard specification to the special specification in the motorcycle shown in the third embodiment will be described with reference to FIG. 13 (a) for the left side and FIG. 13 (b) for the right side. That is, on both the left and right sides of the rear wheel 4, the CU 13 indicated by the solid line is removed from the mounting shaft 1 d, and the left side extends across the mounting shaft 1 d from which the CU 13 is removed and the extended support shaft 14 E replaced from the support shaft 14. The spring top tool LB and the right spring top tool RB are fitted and attached. Then, the upper mounting portion (not shown) is connected to the frame side connecting portion 23 by, for example, moving the CU 13 forward and swinging around the support shaft 5c.

この図13に示される自動二輪車では、揺動アーム5の後端部5bが上方に高く持上げられる形状のものに形成されていて、支承軸5cは元々フルカバータイプのチェンケース34の上側に位置するように構成されている。従って、元々装備されている緩衝器であるCU13及び支承軸5cを兼用しても、「チェンケース34の上にて横臥配置される状態で緩衝器13を車体フレーム1と揺動アーム5とに亘って架設する」という構成を採ることが可能である。尚、標準仕様のCU13を特別仕様にて共用すると、リヤシャフト15即ち後輪4の懸架ストローク量が大きくなり過ぎるとか、バネ定数が低くなり過ぎるといった不都合がある場合には、代替緩衝器16を用いても良い。  In the motorcycle shown in FIG. 13, the rear end portion 5b of the swing arm 5 is formed in a shape that can be lifted upward, and the support shaft 5c is originally positioned above the full-cover type chain case 34. Is configured to do. Therefore, even if the CU 13 and the support shaft 5c, which are originally equipped with the shock absorber, are combined, “the shock absorber 13 is placed on the vehicle body frame 1 and the swing arm 5 in a state of being placed on the side of the chain case 34. It is possible to adopt a configuration of “over erection”. If the standard specification CU 13 is shared by the special specification, the alternative shock absorber 16 can be used if the suspension stroke of the rear shaft 15, that is, the rear wheel 4, becomes too large or the spring constant becomes too low. It may be used.

実施例3による後輪懸架取付装置Aでは、揺動アーム5の支承軸5c及び車体フレーム1の取付軸1dが兼用されて、左右のバネ下具及び延長懸架ボルトが省略でき、実施例1や実施例2の場合に比べて少ない部品点数で済み、より構造簡単でより廉価に後輪懸架取付装置Aを提供することが可能となる利点がある。  In the rear-wheel suspension mounting device A according to the third embodiment, the support shaft 5c of the swing arm 5 and the mounting shaft 1d of the vehicle body frame 1 can be used together, and the left and right unsprung tools and the extension suspension bolts can be omitted. Compared to the case of the second embodiment, the number of parts is reduced, and there is an advantage that the rear wheel suspension mounting device A can be provided with a simpler structure and at a lower cost.

〔別実施例〕
「車体フレームに装備されている螺着部」とは、ボルト等の螺着手段を用いて取付可能という意であり、支持シャフト14,14Eが通される支持筒1aや、エンジン懸架ボルト20,20Eが通される左右の側壁孔1B,1Cの他、雌ネジ部分や雄ネジ部分、部材を外囲しての締付固定が可能なパイプ状部分(例:右アーム、車体フレームを構成するパイプ材)、ナット締めされるボルトが挿通可能な孔等、種々の箇所が可能である。また、図12(b)に仮想線で示す右バネ下具RSのように、揺動アーム1に対する螺着部が1箇所のみ有する構造のバネ下具や、車体フレームに対する螺着部が1箇所のみ有する構造のバネ上具でも良い。
[Another Example]
“Screwed portion mounted on the vehicle body frame” means that it can be attached using screwing means such as bolts, and the support cylinder 1a through which the support shafts 14 and 14E are passed, the engine suspension bolts 20, In addition to the left and right side wall holes 1B, 1C through which 20E is passed, a pipe-shaped portion (eg, a right arm and a vehicle body frame that can be fastened by surrounding a female screw portion, a male screw portion, or a member) Pipe material), various holes such as holes through which bolts to be tightened can be inserted are possible. Further, as in the right unsprung tool RS shown by phantom lines in FIG. 12B, the unsprung tool having a structure in which only one screwed part is attached to the swing arm 1 and one screwed part to the vehicle body frame. It is also possible to use a sprung tool having a structure only having the above.

1 車体フレーム
1a,1d 螺着部
4 後輪
5 揺動アーム
5L 左アーム
5R 右アーム
5c 既設連結部,螺着部
5d 螺着部
5e 螺着部,支承軸
13 緩衝器
14 支持シャフト
16 代替緩衝器
18a 取付部,ボルト用孔
19a 取付部,通し孔
20 エンジン懸架ボルト
23 フレーム側連結部
66,67 取付部
28a 取付部,ボルト用孔
29a 取付部,通し孔
35 揺動アーム側連結部
33a 取付部,嵌装孔
34 チェンケース
41 取付部,嵌装孔
42 取付部,装着孔
43 揺動アーム側連結部
50 ボルト
54 トルクリンク
59 取付部,挿通孔
A 後輪懸架取付装置
LB 左バネ上具
RB 右バネ上具
LS 左バネ下具
RS 右バネ下具
DESCRIPTION OF SYMBOLS 1 Body frame 1a, 1d Screwing part 4 Rear wheel 5 Swing arm 5L Left arm 5R Right arm 5c Existing connection part, Screwing part 5d Screwing part 5e Screwing part, Bearing shaft 13 Buffer 14 Support shaft 16 Alternative buffer 18a mounting portion, bolt hole 19a mounting portion, through hole 20 engine suspension bolt 23 frame side connecting portion 66, 67 mounting portion 28a mounting portion, bolt hole 29a mounting portion, through hole 35 swing arm side connecting portion 33a mounting Part, fitting hole 34 chain case 41 attaching part, fitting hole 42 attaching part, attaching hole 43 swing arm side connecting part 50 bolt 54 torque link 59 attaching part, insertion hole A rear wheel suspension attaching device LB left spring upper tool RB Right spring upper tool LS Left spring lower tool RS Right spring lower tool

Claims (4)

後輪を回転可能に支持し、かつ、車体フレームに対して揺動可能に支承される揺動アームと前記車体フレームとに亘って架設される緩衝器を、前記後輪の左右それぞれに設けてある後一輪車用後輪懸架取付装置であって、
前記緩衝器又は前記緩衝器とは別の代替緩衝器を、前記揺動アームにおける前記緩衝器を連結するための既設連結部が揺動アーム側連結部に兼用される状態で、側面視で横臥姿勢又は横臥姿勢に近い姿勢で前記後輪の左右それぞれに装着可能とすべく、前記車体フレームに後付装備可能な左バネ上具と右バネ上具とを有して成り、
前記左バネ上具は、前記緩衝器又は前記代替緩衝器を連結するためのフレーム側連結部を備えるとともに、前記車体フレームに装備されている螺着部を用いて前記車体フレームの左側に取着可能な取付部を有して構成され、
前記右バネ上具は、前記緩衝器又は前記代替緩衝器を連結するためのフレーム側連結部を備えるとともに、前記車体フレームに装備されている螺着部を用いて前記車体フレームの右側に取着可能な取付部を有して構成されている後一輪車用後輪懸架取付装置。
A swing arm that rotatably supports the rear wheel and is supported so as to be swingable with respect to the vehicle body frame, and a shock absorber installed across the vehicle body frame are provided on each of the left and right sides of the rear wheel. A rear wheel suspension mounting device for a rear unicycle,
The shock absorber or an alternative shock absorber different from the shock absorber is lying in a side view in a state where an existing connecting portion for connecting the shock absorber in the swing arm is also used as the swing arm side connecting portion. A left spring upper tool and a right spring upper tool that can be retrofitted to the vehicle body frame in order to be able to be mounted on each of the left and right of the rear wheel in a posture close to a posture or a recumbent posture,
The left spring upper tool includes a frame side connecting portion for connecting the shock absorber or the alternative shock absorber, and is attached to the left side of the vehicle body frame using a screwing portion provided in the vehicle body frame. Configured with possible attachments,
The right spring upper tool includes a frame side connecting portion for connecting the shock absorber or the alternative shock absorber, and is attached to the right side of the vehicle body frame using a screwed portion provided in the vehicle body frame. A rear-wheel suspension mounting device for a rear unicycle configured with a possible mounting portion.
後輪を回転自在に支持し、かつ、車体フレームに対して揺動可能に支承される揺動アームと前記車体フレームとに亘って架設される緩衝器を、前記後輪の左右それぞれに設けてある後一輪車用後輪懸架取付装置であって、
前記緩衝器又は前記緩衝器とは別の代替緩衝器を、側面視で横臥姿勢又は横臥姿勢に近い姿勢で前記後輪の左右それぞれに装着可能とすべく、前記車体フレームに後付装備可能な左右のバネ上具及び前記揺動アームに後付装備可能な左右のバネ下具を有して成り、
前記左バネ上具は、前記緩衝器又は前記代替緩衝器を連結するためのフレーム側連結部を備え、かつ、前記車体フレームに装備されている螺着部を用いて前記車体フレームの左側に取着可能な取付部を有して構成され、
前記右バネ上具は、前記緩衝器又は前記代替緩衝器を連結するためのフレーム側連結部を備え、かつ、前記車体フレームに装備されている螺着部を用いて前記車体フレームの右側に取着可能な取付部を有して構成され、
前記左バネ下具は、前記緩衝器又は前記代替緩衝器を連結するための揺動アーム側連結部を備え、かつ、前記揺動アームにおける左アームに装備されている螺着部を用いて前記左アームに取着可能な取付部を有して構成され、
前記右バネ下具は、前記緩衝器又は前記代替緩衝器を連結するための揺動アーム側連結部を備え、かつ、前記揺動アームにおける右アームに装備されている螺着部を用いて前記右アームに取着可能な取付部を有して構成されている後一輪車用後輪懸架取付装置。
A swing arm that rotatably supports the rear wheel and is supported so as to be swingable with respect to the vehicle body frame, and a shock absorber installed across the vehicle body frame are provided on each of the left and right sides of the rear wheel. A rear wheel suspension mounting device for a rear unicycle,
The vehicle body frame can be retrofitted so that the shock absorber or an alternative shock absorber different from the shock absorber can be mounted on each of the left and right sides of the rear wheel in a lateral position or a position close to a horizontal position in a side view. Comprising left and right spring top tools and left and right spring unstool that can be retrofitted to the swing arm;
The left spring upper tool includes a frame side connecting portion for connecting the shock absorber or the alternative shock absorber, and is attached to the left side of the vehicle body frame using a screwing portion provided on the vehicle body frame. It has a mounting part that can be worn,
The right spring upper tool includes a frame side connecting portion for connecting the shock absorber or the alternative shock absorber, and is attached to the right side of the vehicle body frame using a screwed portion provided in the vehicle body frame. It has a mounting part that can be worn,
The left unsprung tool includes a swing arm side connecting portion for connecting the shock absorber or the alternative shock absorber, and uses the screwing portion provided on the left arm of the swing arm. It has a mounting part that can be attached to the left arm,
The right unsprung tool includes a swing arm side connecting portion for connecting the shock absorber or the alternative shock absorber, and uses the screwing portion provided on the right arm of the swing arm. A rear wheel suspension mounting device for a rear unicycle configured to have a mounting portion attachable to a right arm.
前記左バネ下具の前記取付部が、前記緩衝器を前記揺動アームに連結すべく前記左アームに装備される支承軸に挿通して螺装するための嵌装孔及び/又はチェンケースを前記揺動アームに取付けるボルトで共締め可能とするための挿通孔で成り、
前記右バネ下具の前記取付部が、前記緩衝器を前記揺動アームに連結すべく前記右アームに装備される支承軸に挿通して螺装するための嵌装孔及び/又はトルクリンクの前端部を前記右アームに支承すべく前記右アームに装備される支持軸部に嵌装するための装着孔である請求項2に記載の後一輪車用後輪懸架取付装置。
The mounting portion of the left unsprung tool has a fitting hole and / or chain case for inserting and screwing a support shaft provided in the left arm to connect the shock absorber to the swing arm. It consists of an insertion hole to enable tightening with a bolt attached to the swing arm,
The mounting portion of the right unsprung tool is provided with a fitting hole and / or a torque link for inserting and screwing a shock absorber mounted on the right arm to connect the shock absorber to the swing arm. The rear wheel suspension mounting device for a rear unicycle according to claim 2, which is a mounting hole for fitting a front end portion to a support shaft portion mounted on the right arm so as to support the right arm.
前記左バネ上具の前記取付部が、前記揺動アームを前記車体フレームに支承する支持シャフトで共締め固定するための通し孔又は/及びエンジン懸架ボルトで共締め固定するためのボルト用孔であり、
前記右バネ上具の前記取付部が、前記揺動アームを前記車体フレームに支承する支持シャフトで共締め固定するための通し孔又は/及びエンジン懸架ボルトで共締め固定するためのボルト用孔である請求項1〜3の何れか一項に記載の後一輪車用後輪懸架取付装置。
The mounting portion of the left spring upper tool is a through hole for fastening the swinging arm together with a support shaft that supports the body frame, and / or a bolt hole for fastening together with an engine suspension bolt. Yes,
The mounting portion of the right spring upper tool is a through hole for fixing the swing arm together with a support shaft supported on the vehicle body frame and / or a bolt hole for fixing together with an engine suspension bolt. The rear-wheel suspension mounting apparatus for rear unicycles as described in any one of Claims 1-3.
JP2012007992U 2012-12-21 2012-12-21 Rear wheel suspension mounting device for rear unicycle Expired - Lifetime JP3182896U (en)

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