FR2850345A1 - Supporting slider for rack of motor vehicle steering system incorporates vibration damper between support and plug to reduce noise - Google Patents
Supporting slider for rack of motor vehicle steering system incorporates vibration damper between support and plug to reduce noise Download PDFInfo
- Publication number
- FR2850345A1 FR2850345A1 FR0312862A FR0312862A FR2850345A1 FR 2850345 A1 FR2850345 A1 FR 2850345A1 FR 0312862 A FR0312862 A FR 0312862A FR 0312862 A FR0312862 A FR 0312862A FR 2850345 A1 FR2850345 A1 FR 2850345A1
- Authority
- FR
- France
- Prior art keywords
- rack
- plug
- support
- noise
- ring
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Vibration Prevention Devices (AREA)
- Transmission Devices (AREA)
- Support Of The Bearing (AREA)
- Power Steering Mechanism (AREA)
Abstract
Description
PATIN DE GLISSEMENT DE CREMAILLERE POUR SYSTEMES DE DIRECTIONRACK SLIDING PAD FOR STEERING SYSTEMS
La présente invention concerne les systèmes de direction pour véhicules automobiles comprenant une direction à crémaillère et se réfère en particulier aux patins de glissement de la crémaillère. The present invention relates to steering systems for motor vehicles comprising a rack and pinion steering and refers in particular to the sliding pads of the rack.
Comme on le sait, un système de direction est constitué essentiellement d'une colonne de direction électrique, d'un arbre intermédiaire et d'un boîtier de direction dans lequel est logé un mécanisme pignon crémaillère. La rotation du volant, assistée par la 10 colonne de direction électrique, est transformée en translation par le mécanisme pignon - crémaillère à l'intérieur du boîtier de direction, qui bouge les roues et permet le changement de direction. Pour ses mouvements de translation, la crémaillère s'appuie sur un patin de 15 glissement qui a besoin, pour que le mécanisme fonctionne correctement, d'un jeu adéquat. As is known, a steering system essentially consists of an electric steering column, an intermediate shaft and a steering box in which is housed a rack and pinion mechanism. The rotation of the steering wheel, assisted by the electric steering column, is transformed into translation by the pinion-rack mechanism inside the steering box, which moves the wheels and allows the change of direction. For its translational movements, the rack rests on a sliding pad which requires, for the mechanism to function correctly, adequate play.
Généralement les patins de glissement comprennent un élément qui supporte le véritable glissement, appelé lunette, logé dans un logement aménagé dans le boîtier de 20 direction et configuré pour enserrer son logement, et un ressort hélicodal placé entre la lunette et le bouchon pour procurer le nécessaire jeu axial au patin de glissement et compenser l'inévitable usure de la lunette. Generally the sliding pads include an element which supports real sliding, called a telescope, housed in a housing fitted in the steering box and configured to enclose its housing, and a helical spring placed between the telescope and the cap to provide the necessary axial play in the sliding shoe and compensate for the inevitable wear of the telescope.
Toutefois, ledit jeu induit dans le patin de 25 glissement des vibrations axiales qui, surtout dans le cas d'une utilisation du véhicule sur des terrains accidentés, se révèlent importantes et donnent lieu à un bruit agaçant du fait de la nature métallique des composants. However, said play in the sliding shoe induces axial vibrations which, especially in the case of use of the vehicle on uneven terrain, turn out to be significant and give rise to an annoying noise due to the metallic nature of the components.
C'est le but de la présente invention que de remédier à un tel inconvénient en proposant un patin de glissement qui prévoit l'emploi, entre la lunette et son bouchon, d'une bague antibruit d'une matière et d'une 5 épaisseur adéquates, destiné à atténuer les vibrations axiales induites dans la lunette, en particulier dans le champ de fréquences perceptibles par l'oreille humaine. It is the object of the present invention to remedy such a drawback by proposing a sliding shoe which provides for the use, between the telescope and its cap, of an anti-noise ring of a material and a thickness adequate, intended to attenuate the axial vibrations induced in the telescope, in particular in the frequency field perceptible by the human ear.
Les principaux détails de l'invention seront de toute façon mieux mis en évidence par la suite de la 10 description faite en se référant aux dessins ci-joints, indicatifs et non limitatifs, o : la figure 1 montre, en vue perspective, un boîtier de direction à crémaillère; la figure 2 montre, en vue perspective éclatée, les 15 éléments du patin de glissement et la figure 3 montre, en section, une coupe transversale du boîtier de direction au niveau du patin de glissement. The main details of the invention will in any case be better illustrated by the following description made with reference to the accompanying drawings, which are indicative and not limiting, o: FIG. 1 shows, in perspective view, a housing rack-and-pinion steering; FIG. 2 shows, in an exploded perspective view, the elements of the sliding pad and FIG. 3 shows, in section, a cross section of the steering box at the level of the sliding pad.
Si l'on se réfère à la figure 1, on y voit 20 représenté dans son ensemble un boîtier de direction 11 de type mécanique ou hydraulique pour la transformation du mouvement de rotation de la colonne de direction 12 en un mouvement de translation pour commander les roues. Le boîtier de direction 11 comprend, de façon connue, un 25 corps 13 dans lequel sont logés un pignon 14 et une crémaillère 15 qui engrène avec celui-ci. La crémaillère glisse dans le corps du boîtier de direction en s' appuyant sur une douille -non représentée- et sur un patin de glissement 16 logé dans un logement à lui 30 aménagé dans le boîtier de direction. Referring to FIG. 1, there is shown there as a whole a steering box 11 of mechanical or hydraulic type for the transformation of the rotational movement of the steering column 12 into a translational movement for controlling the wheels. The steering gear 11 comprises, in a known manner, a body 13 in which are housed a pinion 14 and a rack 15 which meshes therewith. The rack slides in the body of the steering box by pressing on a bushing (not shown) and on a sliding pad 16 housed in a housing of its own arranged in the steering box.
Le patin comprend une lunette 17 sur laquelle glisse la crémaillère, un bouchon 18 de blocage de la lunette dans son logement, un ressort hélicodal 19 placé entre bouchon et lunette pour maintenir cette dernière au contact de la crémaillère 15 et une bague antibruit elle aussi prévue entre lunette et bouchon et en position coaxiale par rapport au ressort 19. The shoe comprises a bezel 17 on which the rack slides, a stopper 18 for locking the bezel in its housing, a helical spring 19 placed between stopper and bezel to keep the latter in contact with the rack 15 and an anti-noise ring also provided. between bezel and plug and in coaxial position with respect to spring 19.
Lunette 17 et bouchon 18 présentent des logements axiaux respectifs se faisant face pour l'appui des extrémités du ressort hélicodal 19 et des surfaces annulaires respectives se faisant face 17' et 18' entre 10 lesquelles est placée la bague antibruit 20. Cette dernière peut aussi être collée à une desdites surfaces annulaires. Bezel 17 and plug 18 have respective axial housings facing each other for the support of the ends of the helical spring 19 and respective annular surfaces facing 17 'and 18' between 10 of which the noise reduction ring 20 is placed. The latter can also be bonded to one of said annular surfaces.
Avantageusement, la bague 20 est multicouche, réalisée en lamelles en acier inoxydable et en caoutchouc 15 dont on choisit l'épaisseur en fonction du champ de fréquences dans lequel on veut atténuer les vibrations. Advantageously, the ring 20 is multilayer, made of stainless steel and rubber strips 15, the thickness of which is chosen as a function of the frequency field in which it is desired to attenuate the vibrations.
En pratique, les vibrations axiales induites dans le patin de glissement par l'utilisation du véhicule, en particulier sur un terrain accidenté, sont amorties par 20 la bague antibruit surtout dans le champ des fréquences perceptibles par l'oreille humaine. Une telle fonction d'atténuation est appréciable tant quand le véhicule est neuf qu'après un kilométrage élevé, car l'usure de la lunette augmente le jeu de la crémaillère. In practice, the axial vibrations induced in the sliding pad by the use of the vehicle, in particular on uneven terrain, are damped by the noise canceling ring especially in the frequency field perceptible by the human ear. Such an attenuation function is appreciable both when the vehicle is new and after a high mileage, because wear of the telescope increases the play of the rack.
Bien entendu, l'invention n'est pas limitée aux exemples de réalisation ci-dessus décrits et représentés, à partir desquels on pourra prévoir d'autres modes et d'autres formes de réalisation, sans pour autant sortir du cadre de l'invention. Of course, the invention is not limited to the embodiments described above and shown, from which other modes and other embodiments can be provided, without going beyond the ambit of the invention. .
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBS20030011 ITBS20030011U1 (en) | 2003-01-29 | 2003-01-29 | RACK SLIDING SHOE FOR STEERING SYSTEMS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2850345A1 true FR2850345A1 (en) | 2004-07-30 |
FR2850345B1 FR2850345B1 (en) | 2007-10-26 |
Family
ID=29727254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0312862A Expired - Fee Related FR2850345B1 (en) | 2003-01-29 | 2003-11-03 | RACK SLIDING SKATE FOR STEERING SYSTEM |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE10349787A1 (en) |
ES (1) | ES2246666B1 (en) |
FR (1) | FR2850345B1 (en) |
GB (1) | GB2397861B (en) |
IT (1) | ITBS20030011U1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1808355A1 (en) | 2006-01-12 | 2007-07-18 | TRW ITALIA S.p.A. | Steering group with longitudinally extended support element |
JP5532952B2 (en) | 2010-01-21 | 2014-06-25 | 株式会社ジェイテクト | Rack and pinion mechanism and steering device |
JP2016128311A (en) * | 2015-01-09 | 2016-07-14 | 株式会社ショーワ | Rack guide mechanism |
KR101858391B1 (en) * | 2017-03-08 | 2018-05-15 | 주식회사 만도 | Rack Bar Supporting Device of Steering Apparatus for Vehicle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2180157A5 (en) * | 1972-04-10 | 1973-11-23 | Gemmer France | |
FR2546468A1 (en) * | 1983-05-24 | 1984-11-30 | Toyota Motor Co Ltd | VIBRATION DAMPING DEVICE FOR RACKET-TYPE DIRECTION CONTROL FOR AUTOMOTIVE VEHICLES |
US4785685A (en) * | 1986-04-09 | 1988-11-22 | Toyota Jidosha Kabushiki Kaisha | Rack guide of synthetic resin for a rack and pinion type steering device |
EP0369300A2 (en) * | 1988-11-08 | 1990-05-23 | Koyo Seiko Co., Ltd. | Rack and pinion steering device |
GB2333079A (en) * | 1998-01-09 | 1999-07-14 | Trw Steering Systems Limited | Rack and pinion assembly |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1235458A (en) * | 1970-03-09 | 1971-06-16 | Cam Gears Ltd | Improvements in or relating to rack and pinion assemblies |
JPS62202471U (en) * | 1986-06-16 | 1987-12-24 | ||
US4924976A (en) * | 1987-09-04 | 1990-05-15 | Digital Equipment Corporation | Tuned array vibration absorber |
GB9922483D0 (en) * | 1999-09-23 | 1999-11-24 | Delphi Tech Inc | Rack and pinion steering system |
JP3676661B2 (en) * | 2000-08-30 | 2005-07-27 | 光洋精工株式会社 | Rack and pinion steering system |
-
2003
- 2003-01-29 IT ITBS20030011 patent/ITBS20030011U1/en unknown
- 2003-10-24 DE DE2003149787 patent/DE10349787A1/en not_active Withdrawn
- 2003-11-03 FR FR0312862A patent/FR2850345B1/en not_active Expired - Fee Related
- 2003-11-10 ES ES200302617A patent/ES2246666B1/en not_active Expired - Fee Related
- 2003-11-14 GB GB0326571A patent/GB2397861B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2180157A5 (en) * | 1972-04-10 | 1973-11-23 | Gemmer France | |
FR2546468A1 (en) * | 1983-05-24 | 1984-11-30 | Toyota Motor Co Ltd | VIBRATION DAMPING DEVICE FOR RACKET-TYPE DIRECTION CONTROL FOR AUTOMOTIVE VEHICLES |
US4785685A (en) * | 1986-04-09 | 1988-11-22 | Toyota Jidosha Kabushiki Kaisha | Rack guide of synthetic resin for a rack and pinion type steering device |
EP0369300A2 (en) * | 1988-11-08 | 1990-05-23 | Koyo Seiko Co., Ltd. | Rack and pinion steering device |
GB2333079A (en) * | 1998-01-09 | 1999-07-14 | Trw Steering Systems Limited | Rack and pinion assembly |
Also Published As
Publication number | Publication date |
---|---|
GB2397861A (en) | 2004-08-04 |
ES2246666A1 (en) | 2006-02-16 |
FR2850345B1 (en) | 2007-10-26 |
ITBS20030011U1 (en) | 2004-07-30 |
DE10349787A1 (en) | 2004-08-12 |
GB0326571D0 (en) | 2003-12-17 |
ES2246666B1 (en) | 2006-12-01 |
GB2397861B (en) | 2005-08-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 13 |
|
PLFP | Fee payment |
Year of fee payment: 14 |
|
PLFP | Fee payment |
Year of fee payment: 15 |
|
PLFP | Fee payment |
Year of fee payment: 16 |
|
ST | Notification of lapse |
Effective date: 20200910 |