JPS59134077A - Shock absorber for rear wheel of motorcycle - Google Patents

Shock absorber for rear wheel of motorcycle

Info

Publication number
JPS59134077A
JPS59134077A JP58006575A JP657583A JPS59134077A JP S59134077 A JPS59134077 A JP S59134077A JP 58006575 A JP58006575 A JP 58006575A JP 657583 A JP657583 A JP 657583A JP S59134077 A JPS59134077 A JP S59134077A
Authority
JP
Japan
Prior art keywords
shock absorber
main body
motorcycle
vehicle body
rear wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP58006575A
Other languages
Japanese (ja)
Inventor
青井　和男
政幸 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP58006575A priority Critical patent/JPS59134077A/en
Publication of JPS59134077A publication Critical patent/JPS59134077A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は自動二輪車の後輪＠衡装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rear wheel balance device for a motorcycle.

自動二輪車の後輪緩衝装置として、車体フレームと後輪
を軸支したリヤアームとを、緩衝器によって連結すると
共に、その長手方向を車体の左右方向に向けて横置きに
するものは、本出願人の先願特願昭５６−２０５８０４
号により提案した。ところで、緩衝器が円滑な作動を行
うためには、ピストンロンドが排斥する油の体積相当分
を吸収するためのガス室が必要であり、このガス室は、
一般に緩衝器内に一体に組込むことが多い。しかし、こ
のようにガス室が一体に組込まれた緩衝器は、全長が長
いものとなるため、上■のように横置とすると邪魔とな
り、そのためライダが両膝間隔（所謂コーグ９フプ間隔
）をかなり広げて乗車しなければならなくなって乗車姿
勢を不自然にする。As a rear wheel shock absorber for a motorcycle, a shock absorber connects a body frame and a rear arm that pivotally supports the rear wheel, and the shock absorber is placed horizontally with its longitudinal direction facing the left and right direction of the vehicle body. First-filed patent application No. 56-205804
proposed by No. By the way, in order for the shock absorber to operate smoothly, a gas chamber is required to absorb the volume equivalent of the oil rejected by the piston rod, and this gas chamber is
Generally, it is often integrated into the shock absorber. However, since a shock absorber with an integrated gas chamber has a long overall length, it becomes a nuisance when placed horizontally as in the above ■. ), which makes the rider's riding position unnatural.

本発明の目的は、上述のような問題に鑑み、緩衝器を車
体に対し横置きにするものでありながら、ライダが両膝
間隔を狭くして乗車することができる自動二輪車の緩衝
装置を提供せんとすることにある。SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a shock absorber for a motorcycle that allows a rider to ride with the distance between his knees narrowed even though the shock absorber is placed horizontally with respect to the vehicle body. It's about trying.

上記目的を達成する本発明による自動二輪車の緩衝装置
は、一端に後輪を軸支したリヤアームの基端側を車体フ
レームに揺動自在に枢支し、前記リヤアームを緩神ｊ器
を介して前記車体フレームに支持し、かつ前記緩衝器の
長手方向を車体の左右方向に向けて配置した自動二輪車
において、前記緩ｉ蚤ｊ器を本体とガス室付補助タンク
とに別体に構成し、前記本体のみを車体の左右方向に設
置すると共に、ガス室付補助タンクを連結パイプを介し
て本体から隔離設置したことを特徴とするものである。A shock absorber for a motorcycle according to the present invention, which achieves the above object, has a rear arm with a rear wheel pivotally supported at one end, the base end of which is swingably pivoted to the vehicle body frame, and the rear arm is connected to the rear arm via a speed reducer. In a motorcycle supported by the body frame and arranged with the longitudinal direction of the shock absorber facing the left-right direction of the vehicle body, the shock absorber is configured separately into a main body and an auxiliary tank with a gas chamber, The present invention is characterized in that only the main body is installed in the left-right direction of the vehicle body, and the auxiliary tank with a gas chamber is installed isolated from the main body via a connecting pipe.

以下、本発明を図に示す実施例により説明する。The present invention will be explained below with reference to embodiments shown in the drawings.

図において、１は主フレーム、２はタウンチューブ、３
ば男フレーム１の後端とダウンチューブ２の１＆端との
間を連結したアルミニウム板製の後部フレームである。In the figure, 1 is the main frame, 2 is the town tube, and 3
This is a rear frame made of an aluminum plate that connects the rear end of the male frame 1 and the 1&end of the down tube 2.

ダウンチューブ２と後＆ｌｉフレーム３との間の三角域
にはエンジン７が搭載され、このエンジン７の吸気系に
は気化器８、空気清浄器９が連結されている。また、後
部フレーム３の後方には支持板３ａが延長し、この支持
板３ａ上に運転者用のフートレスト１２と、後部シート
に乗った同乗者用の補助フートレスト１３が設けられて
いる。An engine 7 is mounted in a triangular area between the down tube 2 and the rear &li frame 3, and a carburetor 8 and an air purifier 9 are connected to the intake system of the engine 7. Further, a support plate 3a extends behind the rear frame 3, and a footrest 12 for the driver and an auxiliary footrest 13 for a fellow passenger riding on the rear seat are provided on the support plate 3a.

４は前輪、５は後輪である６後輸５はリヤアーム６の後
端に軸支され、リヤアーム６の基端側はピポッド軸１４
を介して後部フレーム３ムこ揺動自在に枢支されている
。１５は緩衝器であり、本体１５ａとその補助機器であ
るガス室付補助タンク１５ｂとに別体に構成されている
。4 is a front wheel, and 5 is a rear wheel. 6 The rear wheel 5 is pivotally supported at the rear end of a rear arm 6, and the base end side of the rear arm 6 is supported by a pivot shaft 14.
The three rear frames are pivotally supported via the rear frame. Reference numeral 15 denotes a shock absorber, which is constructed separately into a main body 15a and an auxiliary tank with a gas chamber 15b, which is an auxiliary device thereof.

このガス室付補助タンク１５ｂは、本体１５ａ内に出入
りするピストンロットにより排斥された油の容積変動を
調節するものである。This auxiliary tank 15b with a gas chamber is used to adjust the volume fluctuation of oil rejected by the piston rod that enters and exits the main body 15a.

第２図及び第３図に詳細を示すように、緩ｉｈ器１５の
本体１５ａはオイル室２ｏとスプリング２１とで構成さ
れ、その長手方向を車体の左右方向ｔこ向けて横置きに
しである。この本体１５ａのオイル室２０にはパイプ２
２が連結されこのパイプ２２を介して上記本体１５ａと
は１％％離設置したガス室付補助タンク１５ｂに連通し
ている。As shown in detail in FIGS. 2 and 3, the main body 15a of the induction heating device 15 is composed of an oil chamber 2o and a spring 21, and is placed horizontally with its longitudinal direction facing the left-right direction t of the vehicle body. . A pipe 2 is provided in the oil chamber 20 of this main body 15a.
2 are connected and communicated via this pipe 22 to an auxiliary tank 15b with a gas chamber, which is installed 1% apart from the main body 15a.

緩ｔＥ器本体１５ａの両端にある作動端２３゜２３には
それぞれＬ形をした揺動アーム１６゜１６の一端が連結
されている。揺動アーム１Ｇは軸１７を回動支点として
揺動自在となっており、このため本体１５ａの作動端２
３の左右方向の運動を、他端側において前後方向の運動
に変換する。この各揺動アーム１Ｇの他端には、これよ
りもさらに後方側へ延長した連結ロンド１８．１８の一
端がそれぞれ連結され、さらに連結ロッド１−１３．１
８の他端は、リヤアーム６から斜め上方へ延長したアー
ム６ａの端部に連結されている。One end of an L-shaped swing arm 16.degree. 16 is connected to each operating end 23.degree. 23 at both ends of the loose TE device body 15a. The swinging arm 1G is swingable about the shaft 17 as a pivot point, and therefore the operating end 2 of the main body 15a
The left and right movement of No. 3 is converted into a back and forth movement at the other end. One end of a connecting rod 18.18 extending further rearward than this is connected to the other end of each swing arm 1G, and further connecting rod 1-13.1
The other end of 8 is connected to the end of an arm 6a extending obliquely upward from the rear arm 6.

この緩衝装置において、後輪５が路面からの反力により
上下動すると、リヤアーム６はピボット軸１４を支点に
して上下に揺動を行う。このため、リヤアーム６と一体
のアーム６ａの揺動端が略前後方向に揺動を行って連結
ロンド１８を前後に揺動させ、さらにこの前後揺動によ
りＬ形の揺動アーム１６を揺動させる。このＬ形の揺動
アーム１６は、前後運動を左右運動に変換して緩衝器本
体１５ａの作動端２３に作用するため、前記路面からの
反力が緩衝される。In this shock absorber, when the rear wheel 5 moves up and down due to a reaction force from the road surface, the rear arm 6 swings up and down using the pivot shaft 14 as a fulcrum. Therefore, the swinging end of the arm 6a that is integrated with the rear arm 6 swings approximately in the front-rear direction to swing the connecting rod 18 back and forth, and this back-and-forth swing also swings the L-shaped swing arm 16. let This L-shaped swinging arm 16 converts back-and-forth movement into lateral movement and acts on the operating end 23 of the shock absorber main body 15a, so that the reaction force from the road surface is buffered.

上記緩衝装置では、緩衝器１５の本体１５ａとガス室付
補助タンク１５．ｂとが分離され、本体１５ａは長手方
向を車体に対し左右方向に向けて横置きに配置されるが
、ガス室付補助タンク１５ｂの方はパイプ２２を介して
本体１５ａから隔離設置されるようにしている。そのた
め、緩衝器１５自身の全体長さが、ガス室付補助タンク
１５ｂの長さ分だけ短縮さ些て横置きされたことになり
、その分だけ車体−を狭くすることができ、したがって
ライダが乗車姿勢をとったときの両膝間隔を可及的に狭
くすることができる。The above-mentioned shock absorber includes a main body 15a of the shock absorber 15 and an auxiliary tank 15 with a gas chamber. b are separated from each other, and the main body 15a is placed horizontally with its longitudinal direction facing left and right with respect to the vehicle body, but the auxiliary tank 15b with a gas chamber is installed isolated from the main body 15a via a pipe 22. I have to. Therefore, the overall length of the shock absorber 15 itself is shortened by the length of the auxiliary tank with gas chamber 15b, and is placed horizontally, making it possible to make the vehicle body narrower by that much, thereby making it easier for the rider to The distance between both knees when riding in a riding position can be made as narrow as possible.

上述したように、本発明による自動二輪車の緩衝装置は
、一端に後輪を軸支したリヤアームの基端側を車体フレ
ームに揺動自在に枢支し、前記リヤアームを緩衝器を介
して前記車体フレームに支持し、かつ前記緩衝器′の長
平方向を車体の左右方向に向けて配置した自動二輪車に
おいて、前記緩衝器を本体とガス室付補助タンクとに別
体に構成し、前記本体のみを車体の左右方向に設置する
と共に、ガス室付補助タンクを連結バイブを介して本体
から隔離設置する構成としたので、緩衝器を横置きとす
るものでありながら、ガス室付補助タンクの長さ分だけ
短縮させ′Ｃ配置しているため車体幅を狭くし、ライダ
が乗車したときの両膝間隔を狭くすることができる。As described above, the shock absorber for a motorcycle according to the present invention includes a rear arm having a rear wheel pivotally supported at one end, the base end of which is pivotably supported on a vehicle body frame, and the rear arm is connected to the vehicle body through a shock absorber. In a motorcycle in which the shock absorber is supported on a frame and arranged with the longitudinal direction of the shock absorber facing in the left-right direction of the vehicle body, the shock absorber is constructed separately into a main body and an auxiliary tank with a gas chamber, and only the main body is provided. In addition to being installed in the left and right direction of the vehicle body, the auxiliary tank with gas chamber is installed isolated from the main body via a connecting vibrator, so even though the shock absorber is placed horizontally, the length of the auxiliary tank with gas chamber is The width of the vehicle body can be reduced and the distance between the knees of the rider when riding the vehicle can be narrowed because the position is shortened by 1.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明による緩衝装置を装備した自動二輪車の
側面図、第２図は緩ｆＪｊ器ａＩＳ分の要部平面図、第
３図は同じく緩衝器部分の要部側面図である。 ３・・後部フレーム、　　５・・後輪、６・・リヤアー
ム、　６ａ・・アーム、１４・・ピボット軸、　　１５
・・緩衝器、１５ａ・・本体、 １５ｂ・・ガス室付補助タンク、 １Ｇ・・揺動アーム、　　１８・・連結ロンド、２２・
・パイプ。FIG. 1 is a side view of a motorcycle equipped with a shock absorber according to the present invention, FIG. 2 is a plan view of the main part of the slow fJj aIS section, and FIG. 3 is a side view of the main part of the shock absorber section. 3... Rear frame, 5... Rear wheel, 6... Rear arm, 6a... Arm, 14... Pivot axis, 15
・・Buffer, 15a・・Main body, 15b・・Auxiliary tank with gas chamber, 1G・・Swinging arm, 18・・Connection rond, 22・
·pipe.

Claims (1)

【特許請求の範囲】[Claims] 一端に後輪を軸支したリヤアームの基端側を車体フレー
ムに揺動自在に枢支し、前記リヤアームを緩衝器を介し
て前記車体フレームに支持し、かつ前記緩衝器の長手方
向を車体の左右方向に向けて配置した自動二輪車におい
て、前記緩衝器を本体とガス室付補助タンクとに別体に
構成し、前記本体のみを車体の左右方向に設置すると共
に、ガス室付補助タンクを連結パイプを介して本体から
隔離設置したことを特徴とする自動二輪車の後輪緩衝装
置。The base end side of a rear arm, which pivotally supports a rear wheel at one end, is pivotally supported on the vehicle body frame, the rear arm is supported on the vehicle body frame via a shock absorber, and the longitudinal direction of the shock absorber is supported on the vehicle body frame. In a motorcycle arranged in the left-right direction, the shock absorber is constructed separately into a main body and an auxiliary tank with a gas chamber, and only the main body is installed in the left-right direction of the vehicle body, and the auxiliary tank with a gas chamber is connected. A rear wheel shock absorber for a motorcycle, characterized in that it is installed isolated from the main body via a pipe.
JP58006575A 1983-01-20 1983-01-20 Shock absorber for rear wheel of motorcycle Pending JPS59134077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58006575A JPS59134077A (en) 1983-01-20 1983-01-20 Shock absorber for rear wheel of motorcycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58006575A JPS59134077A (en) 1983-01-20 1983-01-20 Shock absorber for rear wheel of motorcycle

Publications (1)

Publication Number Publication Date
JPS59134077A true JPS59134077A (en) 1984-08-01

Family

ID=11642124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58006575A Pending JPS59134077A (en) 1983-01-20 1983-01-20 Shock absorber for rear wheel of motorcycle

Country Status (1)

Country Link
JP (1) JPS59134077A (en)

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