JPH042776U

JPH042776U -

Info

Publication number: JPH042776U
Application number: JP4321690U
Authority: JP
Priority date: 1990-04-23
Filing date: 1990-04-23
Publication date: 1992-01-10

Description

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

第１図は本考案の一実施例に係る動力舵取装置
の反力機構を示す横断面図、第２図は第１図の
−線断面図、第３図は上記実施例の調芯の過程
を示す断面図、第４図は反力プランジヤの係合溝
の詳細図、第５図はバンドの装着状態を示す説明
図、第６図は従来のインテグラル型動力舵取装置
の縦断面図、第７図はその反力機構部の横断面図
である。２０……ウオーム軸（出力軸）、２６……スタ
ブ軸（入力軸）、１５１……反力機構、１５２…
…円孔、１５４……反力プランジヤ、１５６……
ボール、１５７……Ｖ字溝、１５８ａ，１５８ｂ
……係合溝、１６０……リング溝、１６２……バ
ンド。 FIG. 1 is a cross-sectional view showing a reaction force mechanism of a power steering device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. 4 is a detailed view of the engagement groove of the reaction plunger, 5 is an explanatory view showing the state of attachment of the band, and 6 is a longitudinal section of a conventional integral type power steering device. 7 are cross-sectional views of the reaction force mechanism section. 20...Worm shaft (output shaft), 26...Stub shaft (input shaft), 151...Reaction force mechanism, 152...
...Round hole, 154...Reaction force plunger, 156...
Ball, 157...V-shaped groove, 158a, 158b
...Engaging groove, 160...Ring groove, 162...Band.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

舵取ハンドルによつて回転される入力軸と、こ
の入力軸と同一軸線上に配置され、相対回転可能
な出力軸と、これら両軸にそれぞれ一体回転可能
に設けられた弁部材から成るコントロールバルブ
と、上記両軸間に設けられた反力機構とを備え、
この反力機構が、上記両軸の一方に形成された半
径方向穴と、この穴内に摺動自在に嵌合された反
力プランジヤと、この反力プランジヤの内部側端
面に、その外径の中心から偏心して設けられた凸
状係合部と、他方の軸の外面に形成され上記反力
プランジヤに作用する油圧によつて、上記凸状係
合部が係合する軸方向溝とからなる動力舵取装置
において、上記反力プランジヤの外部側端面に、
反力プランジヤの中心を通つて直径方向に通され
る複数の係合溝を設けるとともに、上記一方の軸
の外面に、上記半径方向穴の中心を通る円周方向
のリング溝を設け、このリング溝に、上記任意の
係合溝と係合して反力プランジヤの軸廻りの廻り
止めおよび半径方向穴からの抜け止めを行なうバ
ンドを装着したことを特徴とする動力舵取装置。 A control valve consisting of an input shaft rotated by a steering handle, an output shaft arranged on the same axis as the input shaft and rotatable relative to each other, and valve members each rotatably provided on each of these shafts. and a reaction force mechanism provided between the two shafts,
This reaction force mechanism includes a radial hole formed in one of the two shafts, a reaction plunger slidably fitted into the hole, and an inner end surface of the reaction plunger with an outer diameter of Consisting of a convex engaging portion provided eccentrically from the center, and an axial groove formed on the outer surface of the other shaft and engaged by the convex engaging portion by hydraulic pressure acting on the reaction plunger. In the power steering device, on the outer end surface of the reaction force plunger,
A plurality of engagement grooves are provided that pass diametrically through the center of the reaction plunger, and a circumferential ring groove that passes through the center of the radial hole is provided on the outer surface of the one shaft. A power steering device characterized in that a band is attached to the groove to engage with any of the engagement grooves to prevent the reaction plunger from rotating around its axis and from coming off from the radial hole.