JPH0267116U

JPH0267116U -

Info

Publication number: JPH0267116U
Application number: JP14633988U
Authority: JP
Priority date: 1988-11-09
Filing date: 1988-11-09
Publication date: 1990-05-21
Anticipated expiration: 2003-11-09
Also published as: JPH075299Y2

Description

[Brief explanation of drawings]

第１図は本考案による弾性軸継手が組込まれた
ステアリングシヤフトを示す側面図、第２図は第
１図に示された弾性軸継手を示す断面図、第３図
は第２図に示された弾性軸継手の中央部の軸線に
垂直な断面をゴムブツシユの自由状態について示
す断面図、第４図は第３図の―に沿う断面図
、第５図はロアシヤフトの横断面を示す断面図、
第６図は中央のゴムブツシユに設けられた切欠き
を拡大して示す部分断面図、第７図は第１図乃至
第６図に示された弾性軸継手の軸線方向の相対変
位と荷重との関係を示すグラフである。１０……ステアリングホイール、１２……ステ
アリングギアボツクス、１４……ブラケツト、１
６……ステアリングコラム、１８……ステアリン
グメーンシヤフト、２０……自在継手、２２……
インタミーデイエツトシヤフト、２４……自在継
手、２６……ギアシヤフト、２８……ロアシヤフ
ト、３０……弾性軸継手、３２……アツパシヤフ
ト、３６，３８……平面部、４０，４２……円筒
面部、４４……軸部、４６……筒形部材、４８，
５０……平面部、５２，５４……円筒面部、５６
……金属ブツシユ、５８……ゴムブツシユ、６０
，６２……平面部、６４，６６……円筒面部、６
８……切欠き、７０，７２……金属ブツシユ、７
４，７６……ゴムブツシユ、７８，８０……平面
部、８２，８４……円筒面部。 FIG. 1 is a side view showing a steering shaft incorporating an elastic shaft joint according to the present invention, FIG. 2 is a sectional view showing the elastic shaft joint shown in FIG. 1, and FIG. 4 is a sectional view taken along - in FIG. 3; FIG. 5 is a sectional view showing a cross section of the lower shaft;
Fig. 6 is a partial cross-sectional view showing an enlarged view of the notch provided in the central rubber bushing, and Fig. 7 shows the relationship between the relative displacement in the axial direction and the load of the elastic shaft joint shown in Figs. 1 to 6. It is a graph showing a relationship. 10... Steering wheel, 12... Steering gear box, 14... Bracket, 1
6... Steering column, 18... Steering main shaft, 20... Universal joint, 22...
Intermediate shaft, 24... Universal joint, 26... Gear shaft, 28... Lower shaft, 30... Elastic shaft joint, 32... Upper shaft, 36, 38... Plane part, 40, 42... Cylindrical surface part, 44... Shaft portion, 46... Cylindrical member, 48,
50...Plane part, 52, 54...Cylindrical surface part, 56
...Metal bushing, 58...Rubber bushing, 60
, 62... Plane portion, 64, 66... Cylindrical surface portion, 6
8... Notch, 70, 72... Metal bushing, 7
4, 76...Rubber bushing, 78, 80...Plane part, 82, 84...Cylindrical surface part.

Claims

[Scope of utility model registration request]

a first shaft member having a shaft portion having a flat surface extending along the axis; and a cylindrical portion receiving the shaft member in a loosely fitted state, the cylindrical portion extending along the axis. and a second shaft member having a flat part opposite to the flat part, the elastic shaft coupling is configured to substantially coaxially connect a second shaft member that is press-fitted between the shaft part and the cylindrical part. and a first rubber-like elastic member fixed to either the shaft portion or the cylindrical portion, and a space between the shaft portion and the cylindrical portion on both sides of the first rubber-like elastic member with respect to the axis. a pair of second rubber-like elastic members arranged and fixed to either the shaft portion or the cylindrical portion, and the spring constant of the second rubber-like elastic member is equal to the spring constant of the first rubber-like elastic member. The elastic shaft joint is configured such that the spring constant of the second rubber-like elastic member is higher than the spring constant of the member, or the thickness of the second rubber-like elastic member is set smaller than the thickness of the first rubber-like elastic member.