JP6530434B2 - Rear axle support structure for motorcycles - Google Patents

Rear axle support structure for motorcycles Download PDF

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Publication number
JP6530434B2
JP6530434B2 JP2017033029A JP2017033029A JP6530434B2 JP 6530434 B2 JP6530434 B2 JP 6530434B2 JP 2017033029 A JP2017033029 A JP 2017033029A JP 2017033029 A JP2017033029 A JP 2017033029A JP 6530434 B2 JP6530434 B2 JP 6530434B2
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rear axle
support structure
motorcycle
width direction
axle support
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JP2018138401A (en
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真之 平丸
真之 平丸
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2017033029A priority Critical patent/JP6530434B2/en
Priority to DE112018000993.9T priority patent/DE112018000993T5/en
Priority to CN201880011914.4A priority patent/CN110325435A/en
Priority to PCT/JP2018/005200 priority patent/WO2018155295A1/en
Priority to BR112019013264-3A priority patent/BR112019013264B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/28—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
    • B62K25/283—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay for cycles without a pedal crank, e.g. motorcycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/16—Tensioning or adjusting equipment for chains, belts or the like

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Fluid-Damping Devices (AREA)

Description

本発明は、自動二輪車の後車軸支持構造に関するものである。   The present invention relates to a rear axle support structure for a motorcycle.

従来、例えば特許文献１に見られるように、車体に上下揺動可能に枢支されるリヤフォーク（１）を角パイプで形成し、該角パイプの後端部に後車軸を軸支するエンドピース（４）を設けた自動二輪車の後車軸支持構造が知られている。   Conventionally, as seen in, for example, Patent Document 1, an end for forming a rear fork (1) pivotally supported on a vehicle body so as to be vertically pivotable by a square pipe and for supporting a rear axle at a rear end of the square pipe A rear axle support structure for a motorcycle provided with a piece (4) is known.

実開昭６３−４８６９１号公報Japanese Utility Model Publication No. 63-48691

上述した従来の自動二輪車の後車軸支持構造は、エンドピース（４）が中実であるため、リヤフォーク後端が重くなっていた。
本発明が解決しようとする課題は、リヤフォーク後端を軽くすることができる自動二輪車の後車軸支持構造を提供することである。 The rear axle support structure of the conventional motorcycle described above has a heavy rear end of the rear fork because the end piece (4) is solid.
The problem to be solved by the present invention is to provide a rear axle support structure for a motorcycle that can reduce the weight of the rear fork rear end.

上記課題を解決するために本発明の自動二輪車の後車軸支持構造は、
車体に上下揺動可能に枢支されるリヤフォークを角パイプで形成し、該角パイプの後端部に後車軸を軸支するエンドピースを設けた自動二輪車の後車軸支持構造において、
前記エンドピースは、車幅方向に貫通する軸孔を有し車幅方向外側に位置する外プレートと、車幅方向に貫通する軸孔を有し車幅方向内側に位置する内プレートとの周縁同士を接合して内部を中空とし、
前記外プレートは、上辺と下辺にそれぞれ車幅方向外方へ膨出し前後方向へ延びる膨出部と、これら上下の膨出部の間で相対的に車幅方向内方へ凹み前記軸孔を有する凹部とを備えていることを特徴とする。 In order to solve the above problems, a rear axle support structure for a motorcycle according to the present invention is:
In a rear axle support structure of a motorcycle, a rear fork pivotally supported vertically movably on a vehicle body is formed by a square pipe, and an end piece for supporting a rear axle at a rear end of the square pipe is provided.
The end piece has an outer peripheral plate having an axial hole penetrating in the vehicle width direction and located on the outer side in the radial direction, and an inner plate having an axial hole penetrating in the lateral direction and located on the inner side. Join together to make the inside hollow,
The outer plate bulges outward on the upper side and the lower side in the vehicle width direction, and the inward extending portion is relatively recessed inward in the vehicle width direction between the upper and lower bulging portions, and the axial hole is And a recessed portion.

この自動二輪車の後車軸支持構造によれば、エンドピースが、外プレートと内プレートとの周縁同士を接合した中空となっているので、軽くすることができる。したがって、リヤフォーク後端を軽くすることができる
また、外プレートは、上辺と下辺にそれぞれ車幅方向外方へ膨出し前後方向へ延びる膨出部と、これら上下の膨出部の間で相対的に車幅方向内方へ凹み前記軸孔を有する凹部とを備えているので、この凹部にアジャスタ部材を配置することができる。 According to the rear axle support structure of the motorcycle, since the end pieces are hollow in which the peripheries of the outer plate and the inner plate are joined to each other, the weight can be reduced. Therefore, the rear fork of the rear fork can be lightened. Further, the outer plate bulges outward in the vehicle width direction on the upper side and the lower side, and the bulged portion extending in the front and rear direction is relative to the upper and lower bulged portions. Since it is provided with a recess having the shaft hole which is recessed inward in the vehicle width direction, the adjuster member can be disposed in this recess.

この自動二輪車の後車軸支持構造においては、
前記軸孔の外周に沿って配置される補強プレートを、前記外プレートと内プレートとの間に設けた構成とすることができる。
このように構成すると、軸孔の周りの剛性を上げることができる。 In the rear axle support structure of this motorcycle,
The reinforcing plate disposed along the outer periphery of the shaft hole may be provided between the outer plate and the inner plate.
With this configuration, the rigidity around the axial hole can be increased.

この自動二輪車の後車軸支持構造においては、
前記凹部の前方に車幅方向外側へ膨出する前部膨出部を設け、その前部膨出部に、アジャストボルト用のナットを埋設する溝を設け、その溝にナットを固着した構成とすることができる。
このように構成すると、簡単な構成でアジャストボルト用のナットを固定することができる。 In the rear axle support structure of this motorcycle,
A front bulging portion that bulges outward in the vehicle width direction is provided in front of the concave portion, and a groove for embedding a nut for adjusting bolt is provided in the front bulging portion, and a nut is fixed to the groove can do.
With this configuration, the adjusting bolt nut can be fixed with a simple configuration.

この自動二輪車の後車軸支持構造においては、
前記補強プレートの外径は、前記軸孔に貫通される後車軸をなすボルトの頭部の座面および、後車軸をなすボルトに螺合されるナットの座面の外径よりも大きい構成とすることができる。
このように構成すると、ボルト、ナットで締め上げられる座面の受部の剛性を上げることができる。 In the rear axle support structure of this motorcycle,
The outer diameter of the reinforcing plate is larger than the outer diameter of the seat surface of the head of the bolt forming the rear axle, which is penetrated through the axial hole, and the bearing surface of the nut engaged with the bolt forming the rear axle. can do.
According to this structure, the rigidity of the receiving portion of the seat that can be tightened by the bolt and the nut can be increased.

本発明に係る自動二輪車の後車軸支持構造の実施の形態を示す斜視図。FIG. 1 is a perspective view showing an embodiment of a rear axle support structure of a motorcycle according to the present invention. リヤフォーク後端部を示す図で、（ａ）は拡大斜視図、（ｂ）は分解斜視図。It is a figure which shows a rear fork rear end part, (a) is an expansion perspective view, (b) is a disassembled perspective view. リヤフォーク後端部を示す図で、（ａ）は拡大側面図、（ｂ）は図（ａ）における部分省略ｂ−ｂ断面図。It is a figure which shows a rear fork rear end part, (a) is an expanded side view, (b) is the partially-omitted bb sectional view in a figure (a).

以下、本発明に係る自動二輪車の後車軸支持構造の実施の形態について図面を参照して説明する。なお、図面は符号の向きに見るものとし、以下の説明において、前後、左右、上下は、操縦者から見た方向に従い、必要に応じて図面に車両の前方をＦｒ、後方をＲｒ、左側をＬ、右側をＲ、上方をＵ、下方をＤ、として示す。各図において、同一部分ないし相当する部分には、同一の符号を付してある。   Hereinafter, an embodiment of a rear axle support structure for a motorcycle according to the present invention will be described with reference to the drawings. The drawings shall be viewed in the direction of the symbols, and in the following description, the front, rear, left and right of the vehicle will be Fr, Rr, and left according to the direction viewed from the operator according to the direction viewed from the operator. L, the right side is shown as R, the upper side as U, and the lower side as D, In the drawings, the same or corresponding parts are denoted by the same reference numerals.

図１〜図３に示すように、この実施の形態の自動二輪車の後車軸支持構造は、車体（図示せず）に上下揺動可能に枢支されるリヤフォーク１０を角パイプ１１で形成し、該角パイプ１１の後端部に後車軸３０（図３（ｂ）参照）を軸支するエンドピース２０を設けた構造である。   As shown in FIGS. 1 to 3, in the rear axle support structure of the motorcycle according to this embodiment, a rear fork 10 pivotably supported on a vehicle body (not shown) is formed by a square pipe 11 An end piece 20 for supporting the rear axle 30 (see FIG. 3B) is provided at the rear end of the square pipe 11.

図２，図３に示すように、エンドピース２０は、車幅方向（矢印Ｌ，Ｒ方向）に貫通する軸孔２１ｈを有し車幅方向外側に位置する外プレート２１と、車幅方向に貫通する軸孔２２ｈを有し車幅方向内側に位置する内プレート２２との周縁２１e、２２e同士を接合して内部２３を中空とした構造となっている。   As shown in FIGS. 2 and 3, the end piece 20 has an axial plate 21 h penetrating in the vehicle width direction (arrows L and R directions), and an outer plate 21 located on the outer side in the vehicle width direction; It has a structure in which the inside 23 is hollow by joining the peripheral edges 21e and 22e of the inner plate 22 which has the penetrating axial hole 22h and is positioned on the inner side in the vehicle width direction.

また、外プレート２１は、上辺と下辺にそれぞれ車幅方向外方へ膨出し前後方向へ延びる膨出部２１ｂ、２１ｂと、これら上下の膨出部２１ｂの間で相対的に車幅方向内方へ凹み前記軸孔２１ｈを有する凹部２１ｃとを備えている。   Further, the outer plate 21 bulges outward in the vehicle width direction on the upper side and the lower side, and extends in the vehicle width direction relatively between the bulging portions 21b and 21b extending in the front and rear direction and these upper and lower bulging portions 21b. And a recess 21c having the shaft hole 21h.

この自動二輪車の後車軸支持構造によれば、エンドピース２０が、外プレート２１と内プレートとの周縁２１e、２２e同士を接合した中空となっているので、軽くすることができる。したがって、リヤフォーク１０の後端を軽くすることができる   According to the rear axle support structure of the motorcycle, since the end piece 20 is hollow in which the peripheral edges 21e and 22e of the outer plate 21 and the inner plate are joined to each other, the weight can be reduced. Therefore, the rear end of the rear fork 10 can be lightened.

また、外プレート２１は、上辺と下辺にそれぞれ車幅方向外方へ膨出し前後方向へ延びる膨出部２１ｂ、２１ｂと、これら上下の膨出部２１ｂ、２１ｂの間で相対的に車幅方向内方へ凹み前記軸孔２１ｈを有する凹部２１ｃとを備えているので、この凹部２１にアジャスタ部材（例えば図３のチェンテンショナー４２等）を配置することができる。   Further, the outer plate 21 bulges outward on the upper side and the lower side in the vehicle width direction and extends in the front-rear direction relative to the bulging portions 21b and 21b in the vehicle width direction. Since it is provided with an inward recess 21c having the axial hole 21h, an adjuster member (for example, the chain tensioner 42 in FIG. 3) can be disposed in the recess 21.

外プレート２１と内プレート２２との間には、軸孔２１ｈ、２２ｈの外周に沿って配置される補強プレート２５が設けられている。
このように構成すると、軸孔２１ｈ、２２ｈの周りの剛性を上げることができる。
結果として、外プレート２１と内プレート２２とを薄く形成することが可能となり、リヤフォーク１０の後端を一層軽くすることが可能となる。 Between the outer plate 21 and the inner plate 22, a reinforcing plate 25 disposed along the outer periphery of the shaft holes 21h and 22h is provided.
With this configuration, the rigidity around the shaft holes 21 h and 22 h can be increased.
As a result, the outer plate 21 and the inner plate 22 can be formed thin, and the rear end of the rear fork 10 can be made lighter.

外プレート２１の凹部２１ｃの前方には、車幅方向外側へ膨出する前部膨出部２１ｆが設けられ、この前部膨出部２１ｆに溝２１ｄが設けられている。そしてこの溝２１ｄに、アジャストボルト４１（図３参照）用のナット２６が埋設され固着されている。   A front bulging portion 21f bulging outward in the vehicle width direction is provided in front of the concave portion 21c of the outer plate 21, and a groove 21d is provided in the front bulging portion 21f. A nut 26 for the adjustment bolt 41 (see FIG. 3) is embedded in and fixed to the groove 21d.

このように構成すると、簡単な構成でアジャストボルト用のナット２６を固定することができる。   With this configuration, the adjusting bolt nut 26 can be fixed with a simple configuration.

図３（ａ）に示すように、補強プレート２５の外径Ｄ２は、軸孔２１ｈ、２２ｈに貫通される後車軸３０をなすボルトの頭部３１の座面３２および、ボルト３０に螺合されるナット３３の座面３４の外径Ｄ１よりも大きい。
このように構成すると、ボルト３０とナット３３とで締め上げられる座面３２，３４の受部の剛性を上げることができる。 As shown in FIG. 3 (a), the outer diameter D2 of the reinforcing plate 25 is screwed into the bearing surface 32 of the bolt head 31 and the bolt 30, which make up the rear axle 30 which penetrates the shaft holes 21h and 22h. Is larger than the outer diameter D1 of the bearing surface 34 of the nut 33.
If comprised in this way, the rigidity of the receiving part of the bearing surfaces 32 and 34 tightened up by the volt | bolt 30 and the nut 33 can be raised.

図１に示したリヤフォーク１０は、その前部のパイプ部１２が、図示しない車体にピボットで上下揺動可能に支持される。リヤフォーク１０を形成する角パイプ１１は鉄系合金、アルミ系合金のいずれでも構成することができる。   In the rear fork 10 shown in FIG. 1, the pipe portion 12 at the front thereof is pivotably supported by a vehicle body (not shown) so as to be vertically pivotable. The square pipe 11 forming the rear fork 10 can be made of either an iron-based alloy or an aluminum-based alloy.

エンドピース２０を構成する各部材も、鉄系合金、アルミ系合金のいずれでも構成することができる。
外プレート２１、内プレート２２は、いずれも、薄板のプレスにて成型する。
外プレート２１、内プレート２２の周縁２１e、２２e同士は溶接にて接合する。 Each member constituting the end piece 20 can also be made of either an iron-based alloy or an aluminum-based alloy.
Both the outer plate 21 and the inner plate 22 are molded by a thin plate press.
The peripheries 21e and 22e of the outer plate 21 and the inner plate 22 are joined by welding.

補強プレート２５は、外プレート２１と内プレート２２との溶接に先立って、内プレート２２の内面に溶接しておく。
アジャストボルト４１用のナット２６は、外プレート２１の前部膨出部２１ｆの溝２１ｄに嵌め合わせて溶接にて固着する。 The reinforcing plate 25 is welded to the inner surface of the inner plate 22 prior to the welding of the outer plate 21 and the inner plate 22.
The nut 26 for the adjustment bolt 41 is fitted in the groove 21 d of the front bulging portion 21 f of the outer plate 21 and fixed by welding.

以上のようなエンドピース２０は、その前部をリアフォークの角パイプ１１の後部に溶接することによって、角パイプ１１の後部に固着される。図１〜図３において、溶接部を符号１３で示す。   The end piece 20 as described above is fixed to the rear of the square pipe 11 by welding its front portion to the rear of the square pipe 11 of the rear fork. In FIG. 1 to FIG.

なお、アジャストボルト４１用のナット２６は、エンドピース２０を角パイプ１１の後部に溶接する際に同時に溶接するようにしてもよい。
ナット２６の角パイプ１１への溶接部２６ｃは、平面状に形成されている。 The nut 26 for the adjustment bolt 41 may be welded simultaneously when welding the end piece 20 to the rear of the square pipe 11.
The welded portion 26c of the nut 26 to the square pipe 11 is formed in a planar shape.

図３に示すように、ナット２６には、アジャストボルト４１が取り付けられる。後車軸３０は車両前後方向にスライド可能なチェンテンショナー４２に挿入されており、このチェンテンショナー４２の位置をアジャストボルト４１で調整することで、後車軸３０の位置調整（したがって、チェンの張り具合の調整）が可能である。   As shown in FIG. 3, an adjusting bolt 41 is attached to the nut 26. The rear axle 30 is inserted into a chain tensioner 42 slidable in the longitudinal direction of the vehicle, and the position adjustment of the rear axle 30 is performed by adjusting the position of the chain tensioner 42 with the adjustment bolt 41 (thus, the tension of the chain Adjustment) is possible.

以上、本発明の実施の形態について説明したが、本発明は上記の実施の形態に限定されるものではなく、本発明の要旨の範囲内において適宜変形実施可能である。
例えば、図示の内プレート２２は周縁２２eを立ち上げ形成した形状となっているが、内プレート２２は周縁２２eを立ち上げない平板状とすることもできる。
そのように内プレート２２を平板状としても、外プレート２１と内プレート２２との周縁２１ｅ、２２ｅ同士を接合して内部２３を中空とすることが可能である。 As mentioned above, although embodiment of this invention was described, this invention is not limited to said embodiment, In the range of the summary of this invention, it can deform suitably.
For example, although the illustrated inner plate 22 has a shape in which the peripheral edge 22 e is raised and formed, the inner plate 22 may be in a flat plate shape in which the peripheral edge 22 e is not raised.
Thus, even if the inner plate 22 has a flat plate shape, it is possible to join the peripheral edges 21e and 22e of the outer plate 21 and the inner plate 22 to make the inside 23 hollow.

１０：リヤフォーク、１１：角パイプ、２０：エンドピース、２１：外プレート、２１ｂ：膨出部、２１ｃ：凹部、２１ｄ：溝、２１ｆ：前部膨出部、２１ｅ：周縁、２１ｈ、２２：内プレート、２２ｅ：周縁、２２ｈ：軸孔、２３：内部、２５：補強プレート、２６：アジャストボルト用のナット、３０：後車軸、３２：ボルト頭部座面、３４：ナットの座面。   10: rear fork, 11: square pipe, 20: end piece, 21: outer plate, 21b: bulging portion, 21c: recess, 21d: groove, 21f: front bulging portion, 21e: peripheral edge, 21h, 22: Inner plate, 22e: peripheral edge, 22h: axial hole, 23: internal, 25: reinforcing plate, 26: nut for adjusting bolt, 30: rear axle, 32: bolt head bearing surface, 34: nut bearing surface.

Claims (4)

車体に上下揺動可能に枢支されるリヤフォーク（１０）を角パイプ（１１）で形成し、該角パイプ（１１）の後端部に後車軸（３０）を軸支するエンドピース（２０）を設けた自動二輪車の後車軸支持構造において、
前記エンドピース（２０）は、車幅方向に貫通する軸孔（２１ｈ）を有し車幅方向外側に位置する外プレート（２１）と、車幅方向に貫通する軸孔（２２ｈ）を有し車幅方向内側に位置する内プレート（２２）との周縁（２１ｅ、２２ｅ）同士を接合して内部（２３）を中空とし、
前記外プレート（２１）は、上辺と下辺にそれぞれ車幅方向外方へ膨出し前後方向へ延びる膨出部（２１ｂ）と、これら上下の膨出部（２１）の間で相対的に車幅方向内方へ凹み前記軸孔（２１ｈ）を有する凹部（２１ｃ）とを備えていることを特徴とする自動二輪車の後車軸支持構造。 An end piece (20) is formed by a square pipe (11) and a rear fork (10) pivotally supported on the vehicle body so as to be vertically pivotable, and a rear axle (30) is pivotally supported at the rear end of the square pipe (11). In the rear axle support structure of a motorcycle provided with
The end piece (20) has an outer plate (21) having an axial hole (21h) penetrating in the vehicle width direction and an axial hole (22h) penetrating in the vehicle width direction. Joining the peripheral edges (21e, 22e) of the inner plate (22) located on the inner side in the vehicle width direction to make the inside (23) hollow
The outer plate (21) bulges outward on the upper and lower sides in the vehicle width direction and extends in the front-rear direction relative to the upper and lower bulges (21). A rear axle support structure for a motorcycle, comprising: a recess (21c) having a direction indented inward and having the shaft hole (21h). 請求項１において、
前記軸孔（２１ｈ）の外周に沿って配置される補強プレート（２５）を、前記外プレート（２１）と内プレート（２２）との間に設けたことを特徴とする自動二輪車の後車軸支持構造。 In claim 1,
A rear axle support for a motorcycle characterized in that a reinforcing plate (25) disposed along the outer periphery of the shaft hole (21h) is provided between the outer plate (21) and the inner plate (22). Construction. 請求項１において、
前記凹部（２１ｃ）の前方に車幅方向外側へ膨出する前部膨出部（２１ｆ）を設け、その前部膨出部（２１ｆ）に、アジャストボルト用のナット（２６）を埋設する溝（２１ｄ）を設け、その溝（２１ｄ）にナット（２６）を固着したことを特徴とする自動二輪車の後車軸支持構造。 In claim 1,
A front bulging portion (21f) bulging outward in the vehicle width direction is provided in front of the recess (21c), and a groove for embedding a nut (26) for adjusting bolt in the front bulging portion (21f) A rear axle support structure for a motorcycle, characterized in that (21d) is provided and a nut (26) is fixed to the groove (21d). 請求項２において、
前記補強プレート（２５）の外径（Ｄ２）は、前記軸孔（２１ｈ）に貫通される後車軸（３０）をなすボルトの頭部（３１）の座面（３２）および、後車軸（３０）をなすボルトに螺合されるナット（３３）の座面（３４）の外径（Ｄ１）よりも大きいことを特徴とする自動二輪車の後車軸支持構造。 In claim 2,
The outer diameter of the reinforcing plate (25) (D2), the shaft hole seating surface of the bolt head forming the axle (30) after being through the (21h) (31) (32) and a rear axle (30 A rear axle support structure for a motorcycle, characterized in that it is larger than an outer diameter (D1) of a bearing surface (34) of a nut (33) to be screwed into the) bolt .
JP2017033029A 2017-02-24 2017-02-24 Rear axle support structure for motorcycles Active JP6530434B2 (en)

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JP2017033029A JP6530434B2 (en) 2017-02-24 2017-02-24 Rear axle support structure for motorcycles
DE112018000993.9T DE112018000993T5 (en) 2017-02-24 2018-02-15 Rear axle support structure for motorcycles
CN201880011914.4A CN110325435A (en) 2017-02-24 2018-02-15 Two-wheeled rear car axle support structure
PCT/JP2018/005200 WO2018155295A1 (en) 2017-02-24 2018-02-15 Rear axle support structure for motorcycle
BR112019013264-3A BR112019013264B1 (en) 2017-02-24 2018-02-15 REAR AXLE SUPPORT STRUCTURE FOR MOTORCYCLE

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