JPH0345390U - - Google Patents

Description

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

第１図はシヤフトドライブ式の自動二輪車の動
力伝達系を示す説明図、第２図、第３図は本考案
のダンパ機構を示し、第２図は縦断面図、第３図
は第２図の−線断面図、第４図、第５は従来
例を示し、第４図は縦断面図、第５図はカム部の
拡大斜視図である。 尚、同図中、１はエンジン、３は出力軸、４は
自在継手、４ｄは係合面、８は後輪、１０はダン
パ機構、１１は伝動部材、１１ｂは突状部、１２
はコイルスプリング、１３は皿ばね、１５はダン
パカバー、５０は出力軸、５１は自在継手、５１
ａはヨーク部、５２はプロペラシヤフト、５３は
ダンパ機構、５４はダンパリフタ、５５はコイル
スプリングを示す。 Fig. 1 is an explanatory diagram showing the power transmission system of a shaft drive type motorcycle, Figs. 2 and 3 show the damper mechanism of the present invention, Fig. 2 is a longitudinal sectional view, and Fig. 3 is FIGS. 4 and 5 show a conventional example, FIG. 4 is a longitudinal sectional view, and FIG. 5 is an enlarged perspective view of the cam portion. In addition, in the figure, 1 is an engine, 3 is an output shaft, 4 is a universal joint, 4d is an engagement surface, 8 is a rear wheel, 10 is a damper mechanism, 11 is a transmission member, 11b is a protrusion, 12
1 is a coil spring, 13 is a disc spring, 15 is a damper cover, 50 is an output shaft, 51 is a universal joint, 51
52 is a propeller shaft, 53 is a damper mechanism, 54 is a damper lifter, and 55 is a coil spring.

Claims (1)

【実用新案登録請求の範囲】 (1) 自在継手とプロペラシヤフトとの連結部に
トルクダンパを設けるようにしたプロペラシヤフ
トのダンパ機構において、このダンパ機構は、プ
ロペラシヤフト端部の外周にスプライン結合し前
記自在継手に接続される伝動部材を備え、この伝
動部材と自在継手の接続部には、プロペラシヤフ
トの回転方向に伸縮してトルク変動を吸収するコ
イルスプリングが介装されたことを特徴とするプ
ロペラシヤフトのダンパ機構。 (2) 前記伝動部材の側面一端側には、該伝動部
材をプロペラシヤフト軸方向に沿い自在継手に向
けて付勢する皿ばねが設けられたことを特徴とす
る請求項(1)に記載のプロペラシヤフトのダンパ
機構。 (3) 前記伝動部材には、自在継手との相対捩れ
角が所定量に達すると、自在継手の係合部に当接
する突状部が設けられたことを特徴とする請求項
第(1)又は第(2)に記載のプロペラシヤフトのダン
パ機構。[Claims for Utility Model Registration] (1) A damper mechanism for a propeller shaft in which a torque damper is provided at the joint between the universal joint and the propeller shaft, and the damper mechanism is spline-coupled to the outer periphery of the end of the propeller shaft. A propeller comprising a transmission member connected to a universal joint, and a coil spring that expands and contracts in the rotational direction of the propeller shaft to absorb torque fluctuations is interposed at the connection between the transmission member and the universal joint. Shaft damper mechanism. (2) A disc spring according to claim (1), characterized in that a disc spring is provided on one end of a side surface of the transmission member to urge the transmission member toward the universal joint along the axial direction of the propeller shaft. Propeller shaft damper mechanism. (3) Claim (1) characterized in that the transmission member is provided with a protruding portion that comes into contact with the engaging portion of the universal joint when the relative torsion angle with the universal joint reaches a predetermined amount. Or the damper mechanism of the propeller shaft described in item (2).