JPS62244763A - Steering gear for front and rear wheel steered vehicle - Google Patents

Steering gear for front and rear wheel steered vehicle

Info

Publication number
JPS62244763A
JPS62244763A JP61089290A JP8929086A JPS62244763A JP S62244763 A JPS62244763 A JP S62244763A JP 61089290 A JP61089290 A JP 61089290A JP 8929086 A JP8929086 A JP 8929086A JP S62244763 A JPS62244763 A JP S62244763A
Authority
JP
Japan
Prior art keywords
rack
shaft
guides
pinion shaft
rotation
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
JP61089290A
Other languages
Japanese (ja)
Inventor
Masami Ogura
小椋 正己
Mitsuya Serizawa
芹沢 満也
Toru Yasuda
徹 安田
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.)
Honda Motor Co Ltd
Original Assignee
Honda 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP61089290A priority Critical patent/JPS62244763A/en
Publication of JPS62244763A publication Critical patent/JPS62244763A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D7/00Steering linkage; Stub axles or their mountings
    • B62D7/06Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/14Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
    • B62D7/15Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels
    • B62D7/1518Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels comprising a mechanical interconnecting system between the steering control means of the different axles
    • B62D7/1527Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels comprising a mechanical interconnecting system between the steering control means of the different axles comprising only mechanical parts, i.e. without assistance means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Abstract

PURPOSE:To reduce a friction feeling, by forming eccentric holes, in which respective rack guides are rotatably fitted, individually in rack guide holders so that a rack shaft is prevented from force acting in the torsional direction avoiding a prying phenomenon. CONSTITUTION:A front wheel steering mechanism 1 arranges its rotation inputting pinion shaft 4 and rotation outputting pinion shaft 21 so that their crossing angle theta forms 90 deg.. And a rack guide 41, which is slidably fitted to the back surface side of a rack 5a in the right half part of a rack shaft 5 meshed with a pinion 4a of the rotation inputting pinion shaft 4, is resiliently urged by a coil spring 43. Rack guide holders 45, 55, which individually eccentrically hold right and left rack guides 41, 51, are provided, while eccentric holes 46, 56, for rotatably fitting rear parts of the rack guides 41, 51, are formed in the front part of the holders 45, 55, and the guides 41, 51 are adjusted in an optimum position to the rack shaft 5.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は前後輪操舵車両のステアリング装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a steering device for a vehicle with front and rear wheel steering.

(従来の技術) 後輪を前輪とともに転舵する前後輪操舵(以下に4WS
と略称する)車両は知られ、前輪用のラックピニオン式
ステアリング装置に後輪転舵のための回転取出用ピニオ
ン軸を組込んだものが特開昭58−205EfG号等に
て開示される。
(Conventional technology) Front and rear wheel steering in which the rear wheels are steered together with the front wheels (hereinafter referred to as 4WS)
A vehicle in which a front wheel rack and pinion steering device incorporates a rotation take-out pinion shaft for steering the rear wheels is disclosed in Japanese Patent Application Laid-Open No. 58-205EfG.

一般に斯かるステアリング装置は、前輪転舵用のラック
軸に対しハンドルに連動する回転入力用ピニオン軸と後
輪転舵のための回転取出用ピニオン軸とが側面視で直交
若しくはその近傍の交差角をもって噛合する。
Generally, in such a steering device, a rotation input pinion shaft linked to a steering wheel and a rotation output pinion shaft for rear wheel steering are orthogonal to a rack shaft for steering the front wheels, or have an intersection angle close to that in a side view. mesh.

そしてラック軸はステアリングギヤボックスに対し一端
部でラックエンドプッシュを介してガイドされるととも
に、回転入力用ピニオン軸及び回転取出用ピニオン軸と
の背面側でそれぞれラックガイドを介してバックラッシ
ュ調整可能にガイドされる。
The rack shaft is guided by a rack end push at one end relative to the steering gear box, and the backlash can be adjusted via rack guides on the back side of the rotation input pinion shaft and rotation extraction pinion shaft. be guided.

(発明が解決しようとする問題点) ところで、ラック軸に対する左右2個のラックガイドの
付勢方向は、側面視でほぼ直交方向に交差しているため
、一端部でラックエンドプッシュを介してステアリング
ギヤボックスにガイドされるラック軸には捩れ方向の力
が作用し、左右方向3点での各ガイド部分におけるラッ
ク軸摺動の際のこじり現象及びフリクション感の発生、
ラックピニオン間の歯当たりといった問題がある。
(Problem to be Solved by the Invention) By the way, since the urging directions of the two left and right rack guides with respect to the rack axis are substantially perpendicular to each other when viewed from the side, steering is performed by pushing the rack end at one end. A torsional force acts on the rack shaft guided by the gear box, causing a twisting phenomenon and a feeling of friction when the rack shaft slides at each guide portion at three points in the left and right direction.
There is a problem with tooth contact between the rack and pinion.

(問題点を解決するための手段) 斯かる問題点を解決すべく本発明は、前輪転舵用のラッ
ク軸(5)に対しハンドル(2)に連動する回転入力用
ピニオン軸(4)と後輪転舵のための回転取出用ピニオ
ン軸(21)とが側面視で直交若しくはその近傍の交差
角をもって噛合し、且つラック軸(5)をステアリング
ギヤボックス(10)に対し一端部でラックエンドプッ
シュ(19)を介してガイドするとともに、回転入力用
ピニオン軸(4)及び回転取出用ピニオン軸(21)と
の背面側でそれぞれう、クガイド(41)、(5,1)
を介してバックラッシュ3I整可能にガイドするステア
リング装置を装備した4WS車両において、前記ラック
ガイド(41)。
(Means for solving the problem) In order to solve the problem, the present invention provides a rack shaft (5) for steering the front wheels with a pinion shaft (4) for rotational input that is linked to the steering wheel (2). The rotation take-out pinion shaft (21) for steering the rear wheels meshes with each other at orthogonal angles when viewed from the side, and the rack shaft (5) is connected to the steering gear box (10) at one end at a rack end. In addition to guiding through the push (19), there are also guides (41) and (5,1) on the back side of the rotation input pinion shaft (4) and the rotation extraction pinion shaft (21), respectively.
In a 4WS vehicle equipped with a steering device that can guide backlash 3I through the rack guide (41).

(51)を個々に保持するラックガイドホルダ(45)
 。
Rack guide holder (45) that holds (51) individually
.

(55)を前記ステアリングギヤボックス(1o)にそ
れぞれ回転可能に嵌合するとともに、該ラックガイドホ
ルダ(45) 、(55)の個々には前記ラックガイド
(41)、(51)がそれぞれ回転可能に嵌合する偏心
穴(4B)、(5B)を形成した。
(55) are rotatably fitted to the steering gear box (1o), and the rack guides (41) and (51) are rotatable to each of the rack guide holders (45) and (55), respectively. Eccentric holes (4B) and (5B) that fit into the holes were formed.

(作用) ラック軸(5)に対し回転入力用ピニオン軸(4)との
背面側のラックガイド(41)は、偏心穴(48)を介
してこれを嵌合保持したラックガイドホルダ(45)の
回動により回転入力用ピニオン軸(4)の軸方向に沿っ
て移動可能となる。またラック軸(5)に対し回転取出
用ピニオン軸(21)との背面側のラックガイド(51
)も、偏心穴(56)を介してこれを嵌合保持したラッ
クガイドホルダ(55)の回動によって回転取出用ピニ
オン軸(21)の軸方向に沿って移動可能となる。
(Function) The rack guide (41) on the back side of the rotation input pinion shaft (4) with respect to the rack shaft (5) is connected to the rack guide holder (45) which is fitted and held through the eccentric hole (48). The rotation allows movement along the axial direction of the rotation input pinion shaft (4). In addition, the rack guide (51) on the back side of the rotation extraction pinion shaft (21) with respect to the rack shaft (5)
) is also movable along the axial direction of the rotary extraction pinion shaft (21) by rotation of the rack guide holder (55) that fits and holds it through the eccentric hole (56).

そしてパフクラッシュ調整時におけるラック軸(5)の
左右方向動に伴って左右のラックガイド(41)、(5
1)は、ラック軸(5)に対してそれぞれ最も摺動抵抗
が小さくなるような最適位置に位置調整されるため、ラ
ック軸(5)には捩れ方向の力が作用しなくなる。従っ
て左右方向の3点での各ガイド部分におけるラック軸(
5)の摺動の際のこじり現象を防止し、フリクション感
を低減し、ラックピニオン間の歯当たりを防止すること
ができる。
Then, as the rack shaft (5) moves in the left and right direction during puff crash adjustment, the left and right rack guides (41), (5)
1) is adjusted to the optimum position with respect to the rack shaft (5) where the sliding resistance is the smallest, so that no force in the torsional direction acts on the rack shaft (5). Therefore, the rack axis (
5) It is possible to prevent the prying phenomenon during sliding, reduce the feeling of friction, and prevent tooth contact between the rack and pinion.

(実施例) 以下に添付図面を基に実施例を説明する。(Example) Examples will be described below based on the accompanying drawings.

第1図は4WS装置の概略斜視図で、(1)は前輪操舵
機構、(31)は後輪操舵機構であり、前輪操舵機構(
1)は、ハンドル(2)、ステアリング軸(3)、回転
入力用ピニオン軸(4)、ラック軸(5)、前輪用の左
右のタイロッド(8)、(6)及びナックルアーム(7
)、(?)等から成り、(8) 、 (8)は左右の前
輪、(10)はステアリングギヤボックスである。ステ
アリングギヤボックス(10)にはラック軸(5)と噛
合する回転取出用ピニオン軸(21)が後方に突出して
組込まれ、このピニオン軸(21)にはジョイン) (
22)を介してリンケージ軸(23)が連結される。更
にこのリンケージ軸(23)にはジヨイント(24)を
介して後輪操舵機構(31)の回転入力軸(32)が連
結される。
FIG. 1 is a schematic perspective view of the 4WS device, in which (1) is the front wheel steering mechanism, (31) is the rear wheel steering mechanism, and the front wheel steering mechanism (
1) includes a steering wheel (2), a steering shaft (3), a pinion shaft for rotational input (4), a rack shaft (5), left and right tie rods for the front wheels (8), (6), and a knuckle arm (7).
), (?), etc., (8), (8) are the left and right front wheels, and (10) is the steering gear box. A pinion shaft (21) for rotation extraction that meshes with the rack shaft (5) is installed in the steering gear box (10) and protrudes rearward.
A linkage shaft (23) is connected via the linkage shaft (22). Further, a rotation input shaft (32) of a rear wheel steering mechanism (31) is connected to this linkage shaft (23) via a joint (24).

後輪操舵機構(31)は、前記回転入力軸(32)、ク
ランクビン(33)、出力部材(34)、リンク機構(
35)、後輪用の左右のタイロッド(3B)、(3B)
及びナックルアーム(37) 、(37)等から成り、
(38)。
The rear wheel steering mechanism (31) includes the rotation input shaft (32), a crank bin (33), an output member (34), and a link mechanism (
35), left and right tie rods for rear wheels (3B), (3B)
and knuckle arms (37), (37), etc.,
(38).

(38)は左右の後輪、(39)は軸受ホルダである。(38) is the left and right rear wheels, and (39) is a bearing holder.

第2図はステアリングギヤボックス(]0)内の構成部
品の概略斜視図で、回転入力用ピニオン軸(4)と回転
取出用ピニオン軸(21)とは、側面視での交差角θが
90°またはこれに近い角度をなすよう配置されており
、ラック軸(5)上に対して右半部に回転入力用ピニオ
ン軸(4)が、また左半部に回転取出用ピニオン軸(2
1)がそれぞれ噛合する。
Fig. 2 is a schematic perspective view of the components inside the steering gear box (]0), in which the rotation input pinion shaft (4) and the rotation extraction pinion shaft (21) have an intersection angle θ of 90 when viewed from the side. The pinion shaft (4) for rotation input is located on the right half of the rack shaft (5), and the pinion shaft (2) for rotation extraction is located on the left half of the rack shaft (5).
1) mesh with each other.

更にラック軸(5)の左端部はラックエンドプッシュ(
19)を介してステアリングギヤボックス(10)に対
し摺動自在に軸承される。
Furthermore, the left end of the rack shaft (5) is connected to the rack end push (
19) and is slidably supported on the steering gear box (10).

そして回転入力用ピニオン軸(4)のピニオン(4a)
が噛合するラック軸(5)右半部のラック(5d)の背
面側にはラックガイド(41)が摺動自在に嵌合され、
このラックガイド(41)はコイルスプリング(43)
にて弾発付勢される。また回転取出用ピニオン軸(21
)のピニオン(21b)が噛合するラック軸(5)左半
部のラック(5b)の背面側にもラックガイド(51)
が摺動自在に嵌合され、このラックガイド(51)もコ
イルスプリング(53)にて弾発付勢される。
And the pinion (4a) of the rotation input pinion shaft (4)
A rack guide (41) is slidably fitted on the back side of the rack (5d) on the right half of the rack shaft (5) that engages with the rack shaft (5).
This rack guide (41) is a coil spring (43)
It is energized by the bullet. In addition, the rotation extraction pinion shaft (21
) There is also a rack guide (51) on the back side of the rack (5b) on the left half of the rack shaft (5) that engages with the pinion (21b).
are slidably fitted, and this rack guide (51) is also resiliently biased by a coil spring (53).

ここで、右側のラックガイド(41)によるガイド部分
をラック軸(5)に対する第1の支点とし、ラック軸(
5)の左端部のラックエンドプッシュ(19)によるガ
イド部分を第2の支点とし、また左側のラックガイド(
51)によるガイド部分を第3の支点とする。そして第
2の支点をなす左端部のラックエンドプッシュ(19)
を基点に考えたとき、第3の支点をなす左側のラックガ
イド(51)によるラック(5b)及びピニオン(21
b)の歯当たり7Aa方向は、第1の支点における回転
入力用ビニオン軸(4)の軸方向にほぼ一致するから、
右側のラックガイド(41)も同方向に移動可部とすれ
ば良い、また第1の支点をなす右側のラックガイド(4
1)によるピニオン(4a)とラック(5a)の歯当た
り7A整方向は、第3の支点における回転取出用ピニオ
ン軸(21)の軸方向にほぼ一致するから、左側のラッ
クガイド(51)も同方向に移動可能とすれば良い。
Here, the guide portion by the right rack guide (41) is the first fulcrum for the rack shaft (5), and the rack shaft (
The guide part by the rack end push (19) at the left end of 5) is used as the second fulcrum, and the left rack guide (
The guide portion according to 51) is used as the third fulcrum. And the rack end push (19) at the left end which forms the second fulcrum
When considered from the base point, the rack (5b) and pinion (21) by the left rack guide (51) which forms the third fulcrum
Since the tooth contact 7Aa direction in b) almost coincides with the axial direction of the rotation input pinion shaft (4) at the first fulcrum,
The right rack guide (41) may also be made movable in the same direction, and the right rack guide (41), which forms the first fulcrum,
Since the tooth contact direction 7A of the pinion (4a) and rack (5a) according to 1) almost coincides with the axial direction of the rotation extraction pinion shaft (21) at the third fulcrum, the left rack guide (51) also It is sufficient if they can be moved in the same direction.

以上において、左右2債のラックガイド(41)。In the above, the rack guide (41) for two bonds on the left and right.

(51)を個々に偏心して保持するラックガイドホルダ
(45) 、 (55)をそれぞれ設ける。
Rack guide holders (45) and (55) are provided for holding (51) individually eccentrically.

即ち第3図乃至第6図に示す如くで、外周がともに円形
をなすラックガイド(41)、(51)の前部にはラッ
ク軸(5)をガイドするための弧状凹部(42)、(5
2)がそれぞれ形成されており、ラックガイドホルダ(
45)、(55)の外周も円形をなし、且つラックガイ
ド(41)、(51)よりも大径である。斯かるラック
ガイドホルダ(45)、(55)の前部にはラックガイ
ド(41)、(51)の後部を個々に回転自在に嵌合保
持するための円形をなす偏心穴(4B) 、 (5B)
をそれぞれ形成する0図中、δはその偏心量であり、(
47)、(57)はスプリング収納穴である。
That is, as shown in FIGS. 3 to 6, the rack guides (41), (51), both of which have circular outer peripheries, have arc-shaped recesses (42), (51) for guiding the rack shaft (5) at the front parts thereof. 5
2) are formed respectively, and the rack guide holder (
The outer circumferences of the rack guides (45) and (55) are also circular and have a larger diameter than the rack guides (41) and (51). The front portions of the rack guide holders (45), (55) are provided with circular eccentric holes (4B) for individually rotatably fitting and holding the rear portions of the rack guides (41), (51). 5B)
In the 0 diagrams forming each, δ is its eccentricity, and (
47) and (57) are spring storage holes.

一方、前記ステアリングギヤボックス(10)の左右の
バックラッシュ調整部分には斯かるラックガイドホルダ
(45)、(55)が個々に回転自在に嵌合する円筒部
(11) 、(15)をそれぞれ突設し、この円筒部(
11)、(15)には割り締め用のスリット(12) 
On the other hand, the left and right backlash adjustment parts of the steering gear box (10) have cylindrical parts (11) and (15) into which the rack guide holders (45) and (55) are individually rotatably fitted, respectively. This cylindrical part (
11) and (15) have slits for splitting (12)
.

(1B)をそれぞれ形成するとともに、円筒部(11)
(1B) respectively, and the cylindrical part (11)
.

(15)の突出端内周にはネジ部(13) 、 (17
)をそれぞれ形成する。
There are threaded parts (13) and (17) on the inner periphery of the protruding end of (15).
) respectively.

而して左右2個のラックガイドホルダ(45) 。There are two rack guide holders (45) on the left and right.

(55)の偏心穴(4B) 、(5B)内にラックガイ
ド(41) 。
Rack guide (41) inside eccentric hole (4B) and (5B) of (55).

(51)の後部をそれぞれ嵌合し、且つスプリング収納
穴(47) 、 (57)内にコイルスプリング(43
)、(53)をそれぞれ縮装する。そして斯かるラック
ガイドホルダ(45)、(55)をステアリングギヤボ
ックス(1o)左右ノ円筒部(11)、(15)内にそ
れぞれ嵌合しイ坊4大2J −7−rグガイド(41)
、(51’)前部の弧状凹部(42) 、(52)をラ
ック軸(5)左右のラック(5a) 。
(51) respectively, and fit the coil springs (43) into the spring storage holes (47) and (57).
) and (53) are respectively reduced. Then, fit these rack guide holders (45) and (55) into the left and right cylindrical parts (11) and (15) of the steering gear box (1o), respectively, and install the Ibo 4-2J-7-r guide (41).
, (51') The front arcuate recess (42), (52) is connected to the rack shaft (5) and the left and right racks (5a).

(5b)の背面側にそれぞれ当接させる。(5b) are brought into contact with the back side of each.

然る後1円筒部(11)、(ts)の突出端内周にネジ
部材(Elf)、(71)をそれぞれ螺着して各コイル
スプリング(43) 、(53)の予圧量を調整し、円
筒部(11”1.(15)から突出するネジ部材(81
)、(71)の外周にロックナラ) (82)、(72
)をそれぞれ螺着する。
After that, screw members (Elf) and (71) are respectively screwed onto the inner peripheries of the protruding ends of the first cylindrical parts (11) and (ts) to adjust the amount of preload of each coil spring (43) and (53). , a screw member (81) protruding from the cylindrical portion (11"1.(15)
), (71) (82), (72
) respectively.

次にハンドル(2)の操作によりステアリング軸(3)
、回転入力用ビニオン軸(0を介してラック軸(5)を
左右方向に往復動させる。
Next, by operating the handle (2), the steering shaft (3)
, reciprocates the rack shaft (5) in the left-right direction via the rotation input pinion shaft (0).

すると、ラック軸(5)に対する第1の支点をなす右側
のラックガイド(41)は、第3図及び第5図に示すよ
うにラックガイドホルダ(45)自体の回動及びその偏
心穴(46)内での相対回動によって回転入力用ビニオ
ン軸(4)のほぼ軸方向に沿って移動可能となる。図中
、mはその移動量であり、αは変位角である。
Then, the right rack guide (41), which forms the first fulcrum with respect to the rack shaft (5), is rotated by the rotation of the rack guide holder (45) itself and its eccentric hole (46), as shown in FIGS. 3 and 5. ) allows the rotational input pinion shaft (4) to move approximately along the axial direction. In the figure, m is the amount of movement, and α is the displacement angle.

またラック軸(5)に対する第3の支点をなす左側のラ
ックガイド(51)も同様に、第4図及び第5図に示す
如く回転取出用ピニオン軸(21)の軸方向に沿って移
動可能となる。
Similarly, the left rack guide (51), which serves as the third fulcrum for the rack shaft (5), is movable along the axial direction of the rotary extraction pinion shaft (21) as shown in FIGS. 4 and 5. becomes.

このように左右のラックガイド(41)、(51)はと
もに相互の歯当たり調整方向にほぼ沿って移動するため
、ラック軸(5)に対してそれぞれ最も摺動抵抗が小さ
くなるような最適位置に位置7JR整されることとなる
。従ってラック軸(5)には捩れ方向の力が作用しなく
なる。
In this way, the left and right rack guides (41) and (51) both move approximately along the mutual tooth contact adjustment direction, so they are each located at the optimal position where the sliding resistance is the smallest with respect to the rack axis (5). Location 7JR will be reorganized. Therefore, no torsional force acts on the rack shaft (5).

その後、ステアリングギヤボックス(1o)左右の円筒
部m)、(15)のスリット(12)、(1B)をボル
ト(83)、(73)でそれぞれ締込むことによりラッ
クガイドホルダ(45) 、(55)を円筒部(11)
、(15)内にそれぞれロックする。
Thereafter, by tightening the slits (12) and (1B) of the left and right cylindrical parts m) and (15) of the steering gear box (1o) with the bolts (83) and (73), respectively, the rack guide holders (45) and ( 55) to the cylindrical part (11)
, (15) respectively.

(発明の効果) 以上のように本発明によれば、左右のラックガイドがと
もに相互の歯当たり調整方向にほぼ沿って移動し、ラッ
ク軸に対してそれぞれ最も摺動抵抗が小さくなるような
最適位置に位置調整されるため、ラック軸には捩れ方向
の力が作用しなくなり、従って左右方向3点での各ガイ
ド部分におけナツト、(63)、(73)はボルトであ
る。
(Effects of the Invention) As described above, according to the present invention, both the left and right rack guides move substantially along the mutual tooth contact adjustment direction, and the optimal sliding resistance is minimized for each with respect to the rack axis. Since the position is adjusted, no force in the torsional direction is applied to the rack shaft. Therefore, nuts (63) and (73) at each guide portion at three points in the left and right direction are bolts.

るランク軸の摺動の際のこじり現象を防止でき、フリク
ション感を低減でき、ラックピニオン間の歯当たりを有
効に防止することができる。
It is possible to prevent the prying phenomenon when the rank shaft slides, reduce the feeling of friction, and effectively prevent tooth contact between the rack and pinion.

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

第1図は4WS装置の一例を示す概略斜視図、第2図は
ステアリングギヤ構成部品の概略斜視図、第3図及び第
4図は左右のバックラッシュ調整部の各縦断側面図、第
5図は第3図と第4図のv−v線断面図、第6図はバッ
クラッシュ調整部品の分解斜視図である。 尚、図面中、(1)は前輪操舵機構、(2)はハンドル
、(4)は回転入力用ピニオン軸、(5)はラック軸、
(10)はステアリングギヤボックス、(ti)。 (15)は円筒部、(12)、(1B)はスリット、(
19)はラックエンドプッシュ、(21)は回転取出用
ピニオン軸、(23)はリンケージ軸、(31)は後輪
操舵機構、(41)、(51)はラックガイド、 (4
2)、(52)は弾状凹部、(43) 、(53)はコ
イルスプリング、(45) 。 (55)はラックガイドホルダ、 (4B)、(5B)
は偏心穴、(81)、(71)はネジ部材、(B2)、
(72)はロック特 許 出 願 人  本田技研工業
株式会社代理人  弁理士   下  1) 容一部間
     弁理士    大  橋  邦  金回  
 弁理士   小  山    右同   弁理士  
 野  1)   茂第5図
Fig. 1 is a schematic perspective view showing an example of a 4WS device, Fig. 2 is a schematic perspective view of steering gear components, Figs. 3 and 4 are longitudinal sectional side views of left and right backlash adjustment parts, and Fig. 5 is a sectional view taken along the line v-v in FIGS. 3 and 4, and FIG. 6 is an exploded perspective view of the backlash adjustment component. In the drawings, (1) is the front wheel steering mechanism, (2) is the handle, (4) is the pinion shaft for rotation input, (5) is the rack shaft,
(10) is a steering gear box, (ti). (15) is a cylindrical part, (12), (1B) are slits, (
19) is the rack end push, (21) is the pinion shaft for rotation extraction, (23) is the linkage shaft, (31) is the rear wheel steering mechanism, (41) and (51) are the rack guides, (4)
2) and (52) are elastic recesses, (43) and (53) are coil springs, and (45). (55) is a rack guide holder, (4B), (5B)
is an eccentric hole, (81), (71) are screw members, (B2),
(72) is a lock patent Applicant: Honda Motor Co., Ltd. Agent, Patent Attorney (2) 1) Toyo Parts, Patent Attorney: Kuni Ohashi Kinkai
Patent Attorney Udo Koyama Patent Attorney
Field 1) Shigeru Figure 5

Claims (1)

【特許請求の範囲】 前輪転舵用のラック軸に対しハンドルに連動する回転入
力用ピニオン軸と後輪転舵のための回転取出用ピニオン
軸とが側面視で直交若しくはその近傍の交差角をもって
噛合し、 且つラック軸をステアリングギヤボックスに対し一端部
でラックエンドプッシュを介してガイドするとともに、
回転入力用ピニオン軸及び回転取出用ピニオン軸との背
面側でそれぞれラックガイドを介してバックラッシュ調
整可能にガイドするステアリング装置を装備した前後輪
操舵車両において、 前記ラックガイドを個々に保持するラックガイドホルダ
を前記ステアリングギヤボックスにそれぞれ回転可能に
嵌合するとともに、 該ラックガイドホルダの個々には前記ラックガイドがそ
れぞれ回転可能に嵌合する偏心穴を形成したことを特徴
とする前後輪操舵車両のステアリング装置。
[Scope of Claims] A rotation input pinion shaft interlocked with a steering wheel and a rotation take-out pinion shaft for rear wheel steering are engaged with a rack shaft for front wheel steering at orthogonal angles in side view or at an intersecting angle in the vicinity thereof. and guiding the rack shaft to the steering gear box via a rack end push at one end,
In a front and rear wheel steered vehicle equipped with a steering device that guides a rotation input pinion shaft and a rotation extraction pinion shaft in a backlash adjustable manner via rack guides on the back side thereof, a rack guide that individually holds the rack guides. The front and rear wheel steered vehicle is characterized in that the holders are rotatably fitted into the steering gear box, and each of the rack guide holders is formed with an eccentric hole into which the rack guide is rotatably fitted. Steering device.
JP61089290A 1986-04-18 1986-04-18 Steering gear for front and rear wheel steered vehicle Pending JPS62244763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61089290A JPS62244763A (en) 1986-04-18 1986-04-18 Steering gear for front and rear wheel steered vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61089290A JPS62244763A (en) 1986-04-18 1986-04-18 Steering gear for front and rear wheel steered vehicle

Publications (1)

Publication Number Publication Date
JPS62244763A true JPS62244763A (en) 1987-10-26

Family

ID=13966562

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61089290A Pending JPS62244763A (en) 1986-04-18 1986-04-18 Steering gear for front and rear wheel steered vehicle

Country Status (1)

Country Link
JP (1) JPS62244763A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015068547A1 (en) * 2013-11-08 2015-05-14 Ntn株式会社 Steering device and steering device system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015068547A1 (en) * 2013-11-08 2015-05-14 Ntn株式会社 Steering device and steering device system
JP2015093497A (en) * 2013-11-08 2015-05-18 Ntn株式会社 Steering device and steering device system

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