FR2932131A1 - Headrest mounting device for motor vehicle, has plate whose median part is arranged against sheath's external surface that is vertically aligned with internal pin so as to absorb efforts applied radially to pin by bent mounting rod - Google Patents
Headrest mounting device for motor vehicle, has plate whose median part is arranged against sheath's external surface that is vertically aligned with internal pin so as to absorb efforts applied radially to pin by bent mounting rod Download PDFInfo
- Publication number
- FR2932131A1 FR2932131A1 FR0803181A FR0803181A FR2932131A1 FR 2932131 A1 FR2932131 A1 FR 2932131A1 FR 0803181 A FR0803181 A FR 0803181A FR 0803181 A FR0803181 A FR 0803181A FR 2932131 A1 FR2932131 A1 FR 2932131A1
- Authority
- FR
- France
- Prior art keywords
- sheath
- lug
- blade
- rod
- pin
- 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
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/809—Head-rests movable or adjustable vertically slidable
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
- B60N2/821—Head-rests movable or adjustable vertically slidable characterised by their locking devices with continuous positioning
- B60N2/826—Head-rests movable or adjustable vertically slidable characterised by their locking devices with continuous positioning using rubber-type material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/897—Head-rests with sleeves located in the back-rest for guiding the rods of the head-rest
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2205/00—General mechanical or structural details
- B60N2205/20—Measures for elimination or compensation of play or backlash
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
1 L'invention concerne un dispositif de montage d'un appui-tête de véhicule automobile et une gaine d'un tel dispositif. The invention relates to a device for mounting a motor vehicle headrest and a sheath of such a device.
Il est connu de réaliser un dispositif de montage d'un appui-tête de véhicule automobile, ledit dispositif comprenant : • une tige de montage dudit appui-tête, • une gaine, à base de matériau thermoplastique moulé, de réception en coulissement de ladite tige, la face interne de ladite gaine comprenant un ergot agencé pour créer un contact serrant entre ladite tige et ladite gaine, • une douille, notamment métallique, de réception de ladite gaine. It is known to provide a device for mounting a motor vehicle headrest, said device comprising: a mounting rod of said headrest, a sheath, based on a molded thermoplastic material, for sliding reception of said rod, the inner face of said sheath comprising a lug arranged to create a tight contact between said rod and said sheath, • a socket, in particular metal, for receiving said sheath.
La présence d'un tel ergot permet de garantir un contact optimal entre la gaine et la tige, avec notamment pour effets de supprimer les vibrations et de freiner le coulissement de la tige dans la gaine. The presence of such a pin makes it possible to guarantee an optimal contact between the sheath and the rod, in particular with the effect of suppressing vibrations and curbing the sliding of the rod in the sheath.
Cependant, la gaine, du fait de sa nature thermoplastique, est sujette à déformation dans le temps, ce qui risque d'entraîner un affaiblissement du serrage gaine/tige causant l'apparition de vibrations et un mauvais freinage de la tige en coulissement. However, the sheath, because of its thermoplastic nature, is subject to deformation over time, which may cause a weakening of the sheath / rod clamping causing the appearance of vibrations and poor braking of the sliding rod.
L'invention a pour but de pallier ces inconvénients. The invention aims to overcome these disadvantages.
A cet effet, et selon un premier aspect, l'invention propose un dispositif de montage d'un appui-tête de véhicule automobile, ledit dispositif comprenant : • une tige de montage dudit appui-tête, • une gaine, à base de matériau thermoplastique moulé, de réception en coulissement de ladite tige, la face interne de ladite gaine comprenant un ergot agencé pour créer un contact serrant entre ladite tige et ladite gaine, • une douille de réception de ladite gaine, 2 ledit dispositif comprenant en outre une lame ressort de reprise d'efforts, les extrémités de ladite lame prenant appui sur ladite douille, la partie médiane de ladite lame étant disposée : • à distance de ladite douille, de sorte à permettre un débattement de ladite partie médiane vers l'extérieur, • et contre la face externe de ladite gaine à l'aplomb dudit ergot, de sorte à reprendre les efforts appliqués radialement audit ergot par ladite tige. For this purpose, and according to a first aspect, the invention proposes a device for mounting a motor vehicle headrest, said device comprising: a mounting rod of said headrest, a sheath, made of material molded thermoplastic, slidably receiving said rod, the inner face of said sheath comprising a lug arranged to create a tight contact between said rod and said sheath, • a sleeve for receiving said sheath, said device further comprising a blade force recovery spring, the ends of said blade bearing on said sleeve, the middle portion of said blade being disposed: • away from said sleeve, so as to allow a movement of said middle portion outwards, • and against the outer face of said sheath in line with said lug, so as to take up the forces applied radially to said lug by said rod.
Dans cette description, les termes de positionnement dans l'espace (dessus, dessous,...) sont pris en référence au dispositif disposé dans le véhicule. Les termes de positionnement par rapport à un axe (axial, radial,...) sont pris en référence à l'axe de la gaine. In this description, the positioning terms in space (above, below, ...) are taken in reference to the device disposed in the vehicle. The terms of positioning relative to an axis (axial, radial, ...) are taken with reference to the axis of the sheath.
Avec l'agencement proposé, la partie médiane de la lame étant disposée à distance de la douille, de sorte à permettre un débattement de ladite partie médiane vers l'extérieur, l'ergot se positionne de sorte à absorber les dispersions dimensionnelles de la gaine et/ou de la tige. With the proposed arrangement, the median portion of the blade being disposed at a distance from the bushing, so as to allow a displacement of said middle portion outwards, the lug is positioned so as to absorb the dimensional dispersions of the sheath and / or the stem.
En outre, la partie médiane de la lame étant disposée contre la face externe de la gaine à l'aplomb de l'ergot, de sorte à reprendre les efforts appliqués radialement audit ergot par ladite tige, on garantit une parfaite tenue du serrage de la gaine contre la tige dans le temps. In addition, the median portion of the blade being disposed against the outer face of the sheath in line with the lug, so as to take up the forces radially applied to said lug by said rod, it ensures a perfect holding of the clamping of the sheath against the rod in time.
Les extrémités de la lame prenant appui sur la clouille, notamment métallique, éventuellement par cale interposée comme on le verra plus loin, on garantit un positionnement stable desdites extrémités dans le temps en raison de la forte résistance mécanique de ladite douille, The ends of the blade bearing on the nail, in particular metal, possibly by shim interposed as will be seen later, ensures a stable positioning of said ends in time due to the strong mechanical strength of said sleeve,
Selon un deuxième aspect, l'invention propose une gaine d'un tel dispositif. D'autres particularités et avantages de l'invention apparaîtront dans la description qui suit, faite en référence à la figure jointe qui est une représentation schématique en coupe d'un dispositif selon une réalisation.30 3 En référence à la figure, on décrit un dispositif 1 de montage d'un appui-tête de véhicule automobile, ledit dispositif comprenant : • une tige 2 de montage dudit appui-tête, • une gaine 3, à base de matériau thermoplastique moulé, de réception en coulissement de ladite tige, la face interne de ladite gaine comprenant un ergot 4 agencé pour créer un contact serrant entre ladite tige et ladite gaine, • une douille 5, notamment métallique, de réception de ladite gaine, ladite 10 douille étant destinée à être solidaire de l'appui-tête ou du dossier du siège du véhicule, ledit dispositif comprenant en outre une lame 6 ressort de reprise d'efforts, les extrémités 7 de ladite lame prenant appui sur ladite douille, la partie médiane 8 de ladite lame étant disposée : 15 • à distance de ladite douille, de sorte à permettre un débattement de ladite partie médiane vers l'extérieur, • et contre la face externe de ladite gaine à l'aplomb dudit ergot, de sorte à reprendre les efforts appliqués radialement audit ergot par ladite tige. According to a second aspect, the invention proposes a sheath of such a device. Other features and advantages of the invention will appear in the description which follows, made with reference to the attached figure which is a diagrammatic sectional representation of a device according to one embodiment. 3 Referring to FIG. device 1 for mounting a motor vehicle headrest, said device comprising: a rod 2 for mounting said headrest; a sheath 3 based on a molded thermoplastic material for sliding reception of said rod; internal face of said sheath comprising a lug 4 arranged to create a tight contact between said rod and said sheath, • a sleeve 5, in particular metal, for receiving said sheath, said sleeve being intended to be integral with the headrest or the backrest of the seat of the vehicle, said device further comprising a blade 6 spring force recovery, the ends 7 of said blade bearing on said sleeve, the middle portion 8 said blade being disposed: at a distance from said sleeve, so as to allow a displacement of said median portion outwards, and against the outer face of said sheath above said lug, so as to resume the forces applied radially to said pin by said rod.
20 Selon la réalisation représentée, l'ergot 4 est situé en partie médiane 8 de la gaine, de sorte à former ergot médian. According to the embodiment shown, the lug 4 is located in the middle portion 8 of the sheath, so as to form median lug.
En outre, la lame 6 s'étend axialemerit, ce qui permet d'ajuster aisément ses caractéristiques de flexion en jouant sur sa longueur. Par ailleurs, les extrémités 7 de la lame 6 sont solidaires de la gaine 3, ce qui facilite le montage du dispositif 1. In addition, the blade 6 extends axially, which allows to easily adjust its bending characteristics by playing on its length. Moreover, the ends 7 of the blade 6 are integral with the sheath 3, which facilitates the mounting of the device 1.
En particulier, les extrémités 7 de la lame 6 sont encastrées, par exemple par 30 enchâssement ou par surmoulage, dans la gaine 3, de sorte à prendre appui sur la douille 5 par l'intermédiaire de ladite gaine, formant cale interposée évoquée plus haut. 25 4 Selon la réalisation représentée, la tige 2 est incurvée de sorte à être en appui contre les extrémités 9 de la face interne de la gaine 3 selon une génératrice opposée à celle portant l'ergot 4 médian. On réalise ainsi, en combinaison avec l'appui contre l'ergot 4 médian, un appui en trois zones de faible étendue. In particular, the ends 7 of the blade 6 are embedded, for example by embedding or overmolding, in the sheath 3, so as to bear on the sleeve 5 via said sheath, forming interposed shim referred to above . According to the embodiment shown, the rod 2 is curved so as to bear against the ends 9 of the inner face of the sheath 3 according to a generatrix opposite to that bearing the median lug 4. This is done in combination with the support against the medial pin 4, a support in three areas of small extent.
De façon non représentée, on peut prévoir que la tige 2 soit sensiblement rectiligne et que la gaine 3 comprenne en outre deux ergots extrêmes disposés respectivement en dessous et au dessus de l'ergot 4 médian selon une génératrice opposée à celle portant ledit ergot médian, ladite tige étant en appui contre lesdits ergots extrêmes, de sorte à réaliser un appui en trois zones analogue à celui évoqué ci-dessus. In a manner not shown, it can be provided that the rod 2 is substantially rectilinear and that the sheath 3 further comprises two extreme lugs arranged respectively below and above the median lug 4 according to a generatrix opposite to that carrying said median lug, said rod being in abutment against said extreme lugs, so as to achieve a three-zone support similar to that mentioned above.
On décrit à présent une gaine 3 d'un dispositif 1 comprenant un ergot 4 interne et une lame 6 ressort de reprise d'efforts, les extrémités 7 de ladite lame étant solidaires de ladite gaine et la partie rnédiane 8 de ladite lame étant disposée contre la face externe de ladite gaine à l'aplomb dudit ergot. We now describe a sheath 3 of a device 1 comprising an internal pin 4 and a blade 6 force recovery, the ends 7 of said blade being integral with said sheath and the median portion 8 of said blade being disposed against the outer face of said sheath above said lug.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0803181A FR2932131B1 (en) | 2008-06-06 | 2008-06-06 | DEVICE FOR MOUNTING A MOTOR VEHICLE HEADREST COMPRISING AN EFFORTS RECOVERY BLADE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0803181A FR2932131B1 (en) | 2008-06-06 | 2008-06-06 | DEVICE FOR MOUNTING A MOTOR VEHICLE HEADREST COMPRISING AN EFFORTS RECOVERY BLADE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2932131A1 true FR2932131A1 (en) | 2009-12-11 |
| FR2932131B1 FR2932131B1 (en) | 2010-09-17 |
Family
ID=41462998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0803181A Active FR2932131B1 (en) | 2008-06-06 | 2008-06-06 | DEVICE FOR MOUNTING A MOTOR VEHICLE HEADREST COMPRISING AN EFFORTS RECOVERY BLADE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2932131B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2439103A1 (en) * | 2010-10-07 | 2012-04-11 | Centre d'Etude et de Recherche pour l'Automobile (CERA) | Sheath for installing a headrest on a backrest of an automotive vehicle seat |
| EP2868233A4 (en) * | 2012-07-02 | 2015-08-05 | Toyota Motor Co Ltd | HEADREST SUPPORT STRUCTURE |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3636932C1 (en) * | 1986-10-30 | 1988-03-10 | Butz Eugen Otto | Headrests for motor vehicle seats |
| DE4222924C1 (en) * | 1992-07-11 | 1993-09-09 | Mercedes-Benz Aktiengesellschaft, 70327 Stuttgart, De | Height-adjustable headrest for car seat - has braking leaf spring extended beyond locking lug to accommodate elastic block fitting part-way round supporting bar. |
| DE19945585A1 (en) * | 1999-09-23 | 2001-03-29 | Opel Adam Ag | Step-by-step adjustment device for vehicle seat headrest, in which one carrier rod can be locked by catch in one guide shell and other can be clamped in other guide shell |
| DE19947621A1 (en) * | 1999-10-04 | 2001-04-05 | Lear Corp | Seat especially for motor vehicle has sleeve element which in addition to guiding function for in and out movement of headrest is constructed with guiding function for movement of headrest when active headrest system is operated |
| US20030015897A1 (en) * | 2001-06-29 | 2003-01-23 | Lear Corporation | Variable movement headrest arrangement |
| EP1816027A1 (en) * | 2006-02-06 | 2007-08-08 | Centre d'Etude et de Recherche pour l'Automobile (CERA) | Headrest assembly device with a curved rod in a rectilinear casing |
| FR2898088A1 (en) * | 2006-03-02 | 2007-09-07 | Cera | Motor vehicle seat`s headrest assembling device, has rod in locked contact against rectilinear pipe and with portion having curve with radius so that locking effort between rod and pipe in top position is less than that in bottom position |
-
2008
- 2008-06-06 FR FR0803181A patent/FR2932131B1/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3636932C1 (en) * | 1986-10-30 | 1988-03-10 | Butz Eugen Otto | Headrests for motor vehicle seats |
| DE4222924C1 (en) * | 1992-07-11 | 1993-09-09 | Mercedes-Benz Aktiengesellschaft, 70327 Stuttgart, De | Height-adjustable headrest for car seat - has braking leaf spring extended beyond locking lug to accommodate elastic block fitting part-way round supporting bar. |
| DE19945585A1 (en) * | 1999-09-23 | 2001-03-29 | Opel Adam Ag | Step-by-step adjustment device for vehicle seat headrest, in which one carrier rod can be locked by catch in one guide shell and other can be clamped in other guide shell |
| DE19947621A1 (en) * | 1999-10-04 | 2001-04-05 | Lear Corp | Seat especially for motor vehicle has sleeve element which in addition to guiding function for in and out movement of headrest is constructed with guiding function for movement of headrest when active headrest system is operated |
| US20030015897A1 (en) * | 2001-06-29 | 2003-01-23 | Lear Corporation | Variable movement headrest arrangement |
| EP1816027A1 (en) * | 2006-02-06 | 2007-08-08 | Centre d'Etude et de Recherche pour l'Automobile (CERA) | Headrest assembly device with a curved rod in a rectilinear casing |
| FR2898088A1 (en) * | 2006-03-02 | 2007-09-07 | Cera | Motor vehicle seat`s headrest assembling device, has rod in locked contact against rectilinear pipe and with portion having curve with radius so that locking effort between rod and pipe in top position is less than that in bottom position |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2439103A1 (en) * | 2010-10-07 | 2012-04-11 | Centre d'Etude et de Recherche pour l'Automobile (CERA) | Sheath for installing a headrest on a backrest of an automotive vehicle seat |
| FR2965760A1 (en) * | 2010-10-07 | 2012-04-13 | Cera | ASSEMBLY SHEATH OF A HEADREST ON A SEAT BACK OF A MOTOR VEHICLE |
| EP2868233A4 (en) * | 2012-07-02 | 2015-08-05 | Toyota Motor Co Ltd | HEADREST SUPPORT STRUCTURE |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2932131B1 (en) | 2010-09-17 |
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