JPS6362956A - Rack gear supporting device - Google Patents
Rack gear supporting deviceInfo
- Publication number
- JPS6362956A JPS6362956A JP20463886A JP20463886A JPS6362956A JP S6362956 A JPS6362956 A JP S6362956A JP 20463886 A JP20463886 A JP 20463886A JP 20463886 A JP20463886 A JP 20463886A JP S6362956 A JPS6362956 A JP S6362956A
- Authority
- JP
- Japan
- Prior art keywords
- rack gear
- yoke
- receiving surface
- roller
- contact
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
- B62D3/123—Steering gears mechanical of rack-and-pinion type characterised by pressure yokes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
- F16H55/28—Special devices for taking up backlash
- F16H55/283—Special devices for taking up backlash using pressure yokes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
- F16H55/28—Special devices for taking up backlash
- F16H55/283—Special devices for taking up backlash using pressure yokes
- F16H55/285—Special devices for taking up backlash using pressure yokes with rollers or balls to reduce friction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Transmission Devices (AREA)
Abstract
Description
【発明の詳細な説明】 本発明はラックギヤの支持装置に関し、特に。[Detailed description of the invention] The present invention relates to a rack gear support device, and more particularly to a rack gear support device.
ラック・ピニオンステアリング機構におけるラックギヤ
の支持装置の改良に関するものである。This invention relates to an improvement of a rack gear support device in a rack and pinion steering mechanism.
従来技術
一般に、ステアリングホイールに接続されたピニオンと
このピニオンに噛合うラック歯を有し両端に車輪が接続
されたラックギヤとから成るラック・ビニオンステアリ
ング機構で一家ラツクギヤのピニオンとは反対側の面を
支持する支持装置が設けられている。PRIOR ART In general, in a rack-binion steering mechanism consisting of a pinion connected to a steering wheel and a rack gear having rack teeth that mesh with the pinion and wheels connected to both ends, the surface of the rack gear on the opposite side from the pinion is used. A support device is provided for supporting the.
このような支持装置は自動車の直進時では適度の摩擦力
をラックギヤに与えてステアリングホイールを適度に重
<シ、ステアリングしていくに従ってその摩擦力を小さ
くしてステアリングホイールを徐々に軽くするように設
計されている。This type of support device applies a moderate amount of frictional force to the rack gear when the vehicle is traveling straight, making the steering wheel moderately heavy, and as the vehicle is steered, that frictional force is reduced to gradually make the steering wheel lighter. Designed.
従来、この種の支持装置が第6図に示されている。この
支持装置はハウジング1とこのノ・ウジング内に設けら
れたヨーク2とこのヨークに設けられたローラ6とを有
する。ヨーク2は一端にラックギヤ4を受ける受面5を
備え、このヨークは、その受rM5がラックギヤに押圧
するようにこのヨークとハウジングとの間に配置された
ばね乙によって付勢されている。ラックギヤ4はラック
歯4aY有し、このラック歯にはピニオン7が噛合って
いる。このピニオン7の軸7aは自動車のステアリング
ホイール(図示せず)に連結されている。尚、ラックギ
ヤのローラが接触す7)面とラックギヤの中心線4Cと
の間の距離aは、ラックギヤの中心部よりラックギヤの
両端部の方が大きくなるように設定されている。A conventional support device of this type is shown in FIG. This support device has a housing 1, a yoke 2 disposed within the housing, and a roller 6 disposed on the yoke. The yoke 2 has a receiving surface 5 for receiving the rack gear 4 at one end, and the yoke is biased by a spring disposed between the yoke and the housing so that the receiving surface 5 presses against the rack gear. The rack gear 4 has rack teeth 4aY, and a pinion 7 meshes with the rack teeth. A shaft 7a of this pinion 7 is connected to a steering wheel (not shown) of an automobile. Note that the distance a between the surface 7) with which the rollers of the rack gear come into contact and the center line 4C of the rack gear is set to be larger at both ends of the rack gear than at the center of the rack gear.
ローラ6は軸8に回転自在に支承され、この軸は軸受体
9に固定されている。この軸受体はヨークに設けられた
凹孔10内に摺動自在に収容され且つハウジングとの間
に設けられたばね11によってラックギヤに向って付勢
され℃いる。尚、符号2aは凹孔10の開口の一部を閉
じるようヨークに固定されたクロージヤー板を示す。The roller 6 is rotatably supported by a shaft 8, and this shaft is fixed to a bearing body 9. This bearing body is slidably housed in a recessed hole 10 provided in the yoke, and is biased toward the rack gear by a spring 11 provided between the bearing body and the housing. Incidentally, reference numeral 2a indicates a closure plate fixed to the yoke so as to partially close the opening of the recessed hole 10.
この支持装置では自動車の直進時(ラックギヤの中央位
置)にはヨーク2の受面5およびローラ5がラックギヤ
に適度の圧力で接触し、ステアリングホイールに適度の
摩擦力を与え℃いる。この状態からステアリングホイー
ルが一方向に回動されろと、ピニオン7を介し℃ラック
ギヤ4がその中央位置から徐々にその軸方向に浴つ℃移
動し。In this support device, when the automobile is traveling straight (at the center position of the rack gear), the receiving surface 5 of the yoke 2 and the roller 5 contact the rack gear with an appropriate pressure, and apply an appropriate frictional force to the steering wheel. When the steering wheel is rotated in one direction from this state, the rack gear 4 is gradually moved in the axial direction from its center position by a certain degree via the pinion 7.
1寸法の増大によってローラ6を第6図で見て右方向に
押圧し、従つ℃軸受体9はばね111K、抗して右方向
に移動してクロージヤー板2aに当接し、更に、ヨーク
2を伴って右方向にある距離移動で「る。The roller 6 is pushed to the right as seen in FIG. ``ru'' by moving a certain distance to the right with .
発明が解決しようとする問題点
しかしながら、かかる従来技術ではヨークと、このヨー
クに取付けられる軸受体と、この軸受体に取付けられる
ローラと、クロージヤー板と、2つのばねとから成るた
めに部品点数がきわめて多く、このために製造コストが
高いという欠点があった。又1部品数が多いので第5図
に示すように1寸法の変化による軸受体とクロージヤー
板との間の6寸法の設定のばらつきが大きく、上記の作
動に際し効率が悪いという欠点があった。又、ヨークの
受面とラックギヤとの間、ヨークと軸受体との間に存在
する間隙によって作動中音が発生するという欠点があっ
た。Problems to be Solved by the Invention However, such prior art has a large number of parts because it consists of a yoke, a bearing body attached to the yoke, a roller attached to the bearing body, a closure plate, and two springs. There are a lot of them, and this has the disadvantage of high manufacturing costs. Furthermore, since there are a large number of parts, there is a large variation in the setting of the six dimensions between the bearing body and the closure plate due to a change in one dimension, as shown in FIG. 5, resulting in poor efficiency in the above-mentioned operation. Another drawback is that noise is generated during operation due to the gaps that exist between the receiving surface of the yoke and the rack gear, and between the yoke and the bearing body.
本発明は上記の如き従来技術の欠点を改善したラックギ
ヤ支持装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a rack gear support device that overcomes the drawbacks of the prior art as described above.
問題点を解決するための手段
かかる目的を達1fflするために本発明ではヨークと
ローラとを弾性体を介して一体に接続したものである。Means for Solving the Problems In order to achieve the above object, in the present invention, a yoke and a roller are integrally connected via an elastic body.
実施例
以下、本発明の実施例を第1図および第2図を参照し℃
詳細に説明する。Examples Examples of the present invention will be described below with reference to FIGS. 1 and 2.
Explain in detail.
第1図において、符号10はハウジングを示し。In FIG. 1, reference numeral 10 indicates a housing.
このハウジング内にはヨーク11が設けられている。こ
のヨークの一端にはラックギヤ12を受ける受面15が
設けられている。A yoke 11 is provided within this housing. A receiving surface 15 for receiving the rack gear 12 is provided at one end of the yoke.
ラックギヤ12はラック歯14を有し、このラック歯に
はピニオン15が噛合つ℃いる。ピニオンは7ヤフト1
6を介して図示しないステアリングホイールに連結され
ている。ラックギヤの両端には上記従来技術と同様に操
舵すべき車輪が適当なリンク装置(図示せず)を介して
接続されている。The rack gear 12 has rack teeth 14, with which a pinion 15 meshes. pinion is 7yaft 1
6 to a steering wheel (not shown). Wheels to be steered are connected to both ends of the rack gear via appropriate link devices (not shown), as in the prior art described above.
ヨーク11は、受面15とは反端側の端面とハウジング
10との間に配置されたばね17によつ1受面13がラ
ックギヤに常時適宜の圧力で接触するように付勢されて
いる。The yoke 11 is biased by a spring 17 disposed between the end surface opposite to the receiving surface 15 and the housing 10 so that the first receiving surface 13 is always in contact with the rack gear with an appropriate pressure.
ヨーク11にはローラ2Dが回転可能に支持されている
。このローラは軸21に回転自在に支承され、この軸の
両端は弾性体22を介してヨーク11に支承されている
。この弾性体は例えばゴム製の管状体から成り、軸21
の両端に夫々圧入され且つヨーク11に設けられた凹孔
の中に圧入されている。この弾性体のはね特性は、第1
図に示すようにラックギヤの中心からラックギヤの背面
迄の距離a(この距離は第6図に示す従来技術の場合と
同様に設定されている)の変化量を△aとし、ばね17
の圧力なPl とすれば、第2図に示すように変化量
△aに対応する弾性体の圧力なP2とするとP2)P+
となるように設定されている。A roller 2D is rotatably supported on the yoke 11. This roller is rotatably supported by a shaft 21, and both ends of this shaft are supported by the yoke 11 via elastic bodies 22. This elastic body is made of a tubular body made of rubber, for example, and the shaft 21
are press-fitted into both ends of the yoke 11, respectively, and into a recessed hole provided in the yoke 11. The spring characteristics of this elastic body are the first
As shown in the figure, the amount of change in the distance a from the center of the rack gear to the rear surface of the rack gear (this distance is set in the same way as in the case of the prior art shown in FIG. 6) is defined as Δa, and the spring 17
As shown in Figure 2, if the pressure of the elastic body is P2 corresponding to the amount of change △a, then P2)P+
It is set so that
上記の如く弾性体22とばね17との圧力を設定するこ
とによりラックギヤをその軸方向に移動中ヨークの受面
とラックギヤとの間のすべり接触と、ローラとラックギ
ヤとの間のころがり接触とが連続的に変化することがで
きる。By setting the pressure between the elastic body 22 and the spring 17 as described above, sliding contact between the receiving surface of the yoke and the rack gear and rolling contact between the roller and the rack gear can be prevented while the rack gear is moving in its axial direction. Can change continuously.
発明の効果
本発明によれば、ラックギヤ支持のためのすべり接触と
ころがり接触とが連続的に変化するので良好なステアリ
ング注な得ろことができる等のステアリング効率が向と
し、且つステアリング系統の良好な呻1性す1得られる
という実益がある。又、部品点数を少くすることができ
るので製造コストが安い。更に各部品間の間隙部が少く
従って作動中の音の発生が未然に防止できろという利点
がある。Effects of the Invention According to the present invention, since the sliding contact and the rolling contact for supporting the rack gear change continuously, it is possible to improve steering efficiency such as good steering performance, and to improve the steering system. There is a practical benefit in that you can get one benefit from it. Furthermore, since the number of parts can be reduced, manufacturing costs are low. Furthermore, there is an advantage in that there are fewer gaps between the parts, and therefore the generation of noise during operation can be prevented.
第1図は本発明に係るラックギヤ支持装置の断面図、第
2図は弾性体のばね特性を示すグラフ、第6図は従来の
ラックギヤ支持装置の断面図である。
11・・・ハウジング、 12・・・ラックギヤ、15
・・受面、 17・・・ばね、 20・・・ローラ。
(外5名)
16 第1図FIG. 1 is a sectional view of a rack gear support device according to the present invention, FIG. 2 is a graph showing the spring characteristics of an elastic body, and FIG. 6 is a sectional view of a conventional rack gear support device. 11...Housing, 12...Rack gear, 15
...Receiving surface, 17...Spring, 20...Roller. (5 other people) 16 Figure 1
Claims (1)
したりするように前記ハウジング内に移動可能に設けら
れた支持手段とを備え、該支持手段はラックギヤを受け
る受面を有するヨークと、該ヨークに弾性体を介して回
転自在に設けられ且つラックギヤに接触可能なローラと
、前記ヨークをその受面がラックギヤに接触するように
押圧するばねとから成ることを特徴とするラックギヤ支
持装置。A housing, and a support means movably provided within the housing so as to approach or move away from the rack gear to be supported, the support means having a yoke having a receiving surface for receiving the rack gear, and a support means provided on the yoke. A rack gear support device comprising: a roller rotatably provided via an elastic body and capable of contacting a rack gear; and a spring pressing the yoke so that its receiving surface comes into contact with the rack gear.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20463886A JPS6362956A (en) | 1986-08-30 | 1986-08-30 | Rack gear supporting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20463886A JPS6362956A (en) | 1986-08-30 | 1986-08-30 | Rack gear supporting device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6362956A true JPS6362956A (en) | 1988-03-19 |
JPH0573939B2 JPH0573939B2 (en) | 1993-10-15 |
Family
ID=16493791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20463886A Granted JPS6362956A (en) | 1986-08-30 | 1986-08-30 | Rack gear supporting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6362956A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1650102A1 (en) * | 2004-10-21 | 2006-04-26 | ThyssenKrupp Presta SteerTec GmbH | Steering gear |
KR100795045B1 (en) * | 2001-10-25 | 2008-01-15 | 주식회사 만도 | Gear box of steering system for vehicle |
JP2011162186A (en) * | 2010-02-10 | 2011-08-25 | Mando Corp | Rack bar support device of automobile steering device |
KR20160052894A (en) * | 2014-10-29 | 2016-05-13 | 현대모비스 주식회사 | Steering device for vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59184060A (en) * | 1983-03-31 | 1984-10-19 | Tokai T R W Kk | Supporter for rack and pinion |
-
1986
- 1986-08-30 JP JP20463886A patent/JPS6362956A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59184060A (en) * | 1983-03-31 | 1984-10-19 | Tokai T R W Kk | Supporter for rack and pinion |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100795045B1 (en) * | 2001-10-25 | 2008-01-15 | 주식회사 만도 | Gear box of steering system for vehicle |
EP1650102A1 (en) * | 2004-10-21 | 2006-04-26 | ThyssenKrupp Presta SteerTec GmbH | Steering gear |
JP2011162186A (en) * | 2010-02-10 | 2011-08-25 | Mando Corp | Rack bar support device of automobile steering device |
KR101427440B1 (en) * | 2010-02-10 | 2014-08-08 | 주식회사 만도 | Rack Bar Supporting Device of Steering Apparatus for Vehicle |
KR20160052894A (en) * | 2014-10-29 | 2016-05-13 | 현대모비스 주식회사 | Steering device for vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPH0573939B2 (en) | 1993-10-15 |
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