FR2982545A1 - Headrest for seat of motor vehicle, has grip fitted on metallic tubular structure in central part so as to enclose tubular structure, so that reinforcement plate is mounted in articulation with respect to structure - Google Patents
Headrest for seat of motor vehicle, has grip fitted on metallic tubular structure in central part so as to enclose tubular structure, so that reinforcement plate is mounted in articulation with respect to structure Download PDFInfo
- Publication number
- FR2982545A1 FR2982545A1 FR1160385A FR1160385A FR2982545A1 FR 2982545 A1 FR2982545 A1 FR 2982545A1 FR 1160385 A FR1160385 A FR 1160385A FR 1160385 A FR1160385 A FR 1160385A FR 2982545 A1 FR2982545 A1 FR 2982545A1
- Authority
- FR
- France
- Prior art keywords
- clamp
- headrest
- plate
- tubular structure
- seat
- 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
- 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
- B60N2/838—Tiltable
- B60N2/841—Tiltable characterised by their locking devices
- B60N2/85—Tiltable characterised by their locking devices with continuous positioning
-
- 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
- B60N2/891—Head-rests with the head-rest being comma-shaped in side view
-
- 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)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
L'invention concerne un appui tête de siège de véhicule automobile. Il est connu de réaliser un appui tête de siège de véhicule automobile, ledit appui tête comprenant : - une structure tubulaire métallique de montage au dossier dudit siège, - un coussin d'appui, - une plaque d'armature dudit coussin, - une pince en tôle métallique repliée en U qui est associée à ladite plaque et emboitée dans sa partie centrale sur ladite structure de manière à l'enserrer, de sorte que ladite plaque soit montée en articulation par rapport à ladite structure. Le fait que la pince enserre la structure tubulaire permet de réaliser un réglage angulaire de la plaque, et donc du coussin, qui reste dans la position angulaire de confort choisie du fait du couple de frottement s'exerçant entre ladite pince et ladite structure. Dans les réalisations connues, la structure tubulaire est notamment pourvue d'un revêtement de chrome ou de peinture déposée par cataphorèse. The invention relates to a motor vehicle headrest support. It is known to make a headrest of a motor vehicle seat, said headrest comprising: a metal tubular structure for mounting the back of said seat, a support cushion, a reinforcing plate of said cushion, a clamp U-folded sheet metal which is associated with said plate and interlocked in its central portion on said structure so as to grip it, so that said plate is hinged relative to said structure. The fact that the clamp encloses the tubular structure allows for an angular adjustment of the plate, and therefore the cushion, which remains in the selected comfort angular position because of the friction torque exerted between said clamp and said structure. In known embodiments, the tubular structure is in particular provided with a coating of chromium or paint deposited by cataphoresis.
Au cours de l'utilisation de l'appui tête, le revêtement est sujet à une dégradation liée aux rotations répétées exercées sur la pince créant une usure dudit revêtement. During the use of the headrest, the coating is subject to degradation due to repeated rotations exerted on the clamp creating a wear of said coating.
Il en résulte une diminution progressive du couple de frottement entre la pince et la structure, qui risque de s'avérer à terme insuffisant pour permettre au coussin de rester dans la position de confort choisie par l'utilisateur. L'invention a pour but de pallier cet inconvénient. This results in a gradual decrease in the friction torque between the clamp and the structure, which may eventually prove to be insufficient to allow the cushion to remain in the comfort position chosen by the user. The invention aims to overcome this disadvantage.
A cet effet, l'invention propose un appui tête de siège de véhicule automobile, ledit appui tête comprenant : - une structure tubulaire métallique de montage au dossier dudit siège, - un coussin d'appui, - une plaque d'armature dudit coussin, - une pince en tôle métallique repliée en U qui est associée à ladite plaque et emboitée dans sa partie centrale sur ladite structure de manière à l'enserrer, de sorte que ladite plaque soit montée en articulation par rapport à ladite structure, ledit appui tête comprenant en outre une bague de glissement en matière plastique disposée entre ladite pince et ladite structure. For this purpose, the invention proposes a motor vehicle headrest support, said headrest comprising: a metal tubular structure for mounting on the back of said seat, a support cushion, a reinforcing plate for said cushion, a collet made of folded U-shaped metal sheet which is associated with said plate and interlocked in its central part on said structure so as to grip it, so that said plate is mounted in articulation with respect to said structure, said headrest comprising in addition a plastic sliding ring disposed between said clamp and said structure.
Avec l'agencement proposé, la dégradation du revêtement de la structure, liée au frottement de la pince sur ladite structure, devient alors inexistante, ce qui a pour conséquence une non dégradation, dans le temps, du couple de frottement. With the proposed arrangement, the degradation of the coating of the structure, linked to the friction of the clamp on said structure, then becomes non-existent, which results in a non-degradation, over time, of the friction torque.
En outre, le réglage angulaire du coussin se fait avec une suavité non connue dans les réalisations de l'art antérieur, la bague jouant un rôle d'agent lubrifiant. D'autres particularités et avantages de l'invention apparaîtront dans la description qui suit, faite en référence à la figure jointe qui est une vue en perspective partielle éclatée d'un appui tête selon une réalisation. En référence à la figure, on décrit un appui tête 1 de siège de véhicule automobile, ledit appui tête comprenant : - une structure 2 tubulaire métallique de montage au dossier dudit siège, - un coussin d'appui, non représenté, - une plaque 3 d'armature dudit coussin, réalisée notamment à base de matériau plastique moulé, - une pince 4 en tôle métallique repliée en U qui est associée à ladite plaque et emboitée dans sa partie centrale 5 sur ladite structure de manière à l'enserrer, de sorte que ladite plaque soit montée en articulation par rapport à ladite structure, ledit appui tête comprenant en outre une bague 6 de glissement en matière plastique - par exemple en polyamide - disposée entre ladite pince et ladite structure. In addition, the angular adjustment of the cushion is done with a suavity not known in the embodiments of the prior art, the ring acting as a lubricating agent. Other features and advantages of the invention will appear in the description which follows, with reference to the attached figure which is an exploded partial perspective view of a headrest according to one embodiment. Referring to the figure, there is described a headrest 1 of a motor vehicle seat, said headrest comprising: - a tubular metal structure 2 mounting the back of said seat, - a support cushion, not shown, - a plate 3 reinforcing said cushion, made in particular based on molded plastic material, - a clamp 4 metal sheet folded U which is associated with said plate and engaged in its central portion 5 on said structure so as to grip it, so said plate is mounted in articulation relative to said structure, said headrest further comprising a sliding ring 6 of plastic material - for example polyamide - disposed between said clamp and said structure.
Selon la réalisation représentée, la bague 6 est sous la forme d'un manchon pourvu d'une fente 7 axiale. Le montage de la bague 6 se fait par écartement de la fente 7 et insertion de la structure 2 dedans, la pince 4 étant ensuite montée sur ladite bague. According to the embodiment shown, the ring 6 is in the form of a sleeve provided with an axial slot 7. The mounting of the ring 6 is by spacing the slot 7 and insertion of the structure 2 in, the clamp 4 is then mounted on said ring.
Selon une réalisation non représentée, la bague 6 est sous la forme d'une couche de matière plastique surmoulant l'intérieur de la pince 4. Selon une réalisation non représentée, la bague 6 est sous la forme d'une languette souple issue de matière de la plaque 3, ladite languette se recourbant de manière à former un manchon s'interposant entre la structure 2 et la pince 4. Selon la réalisation représentée, la structure 2 est en forme générale de U retourné, la pince 4 étant montée en partie médiane 8 de ladite structure, de manière à disposer d'un appui tête 1 dont le coussin est réglable par rotation pour pouvoir être positionné plus ou moins près de la tête de l'occupant du siège. Selon la réalisation représentée, la pince 4 est associée à la plaque 3 par une vis 9 montée de manière à exercer un effort de rapprochement des branches 10 du U de la pince 4 entre elles permettant l'enserrement de la structure 2. Selon la réalisation représentée, la vis 9 est insérée dans des trous 11 prévus dans chaque branche 10 et dans la plaque 3, un boulon 12 étant vissé sur ladite vis pour assurer le rapprochement attendu entre lesdites branches. Le serrage de la vis 9 est notamment assuré par une clé dynamométrique, ce qui permet d'obtenir un couple de frottement répétable d'un appui tête à l'autre. According to an embodiment not shown, the ring 6 is in the form of a plastic layer overmolding the inside of the clamp 4. According to an embodiment not shown, the ring 6 is in the form of a flexible tongue made of material of the plate 3, said tongue curving so as to form a sleeve interposed between the structure 2 and the clamp 4. According to the embodiment shown, the structure 2 is generally U-shaped returned, the clamp 4 being mounted in part median 8 of said structure, so as to have a headrest 1 whose cushion is adjustable by rotation to be positioned more or less close to the head of the occupant of the seat. According to the embodiment shown, the clamp 4 is associated with the plate 3 by a screw 9 mounted so as to exert a force of approximation of the legs 10 of the U of the clamp 4 between them allowing the clamping of the structure 2. According to the embodiment shown, the screw 9 is inserted into holes 11 provided in each leg 10 and in the plate 3, a bolt 12 being screwed onto said screw to ensure the expected connection between said branches. The tightening of the screw 9 is in particular ensured by a torque wrench, which makes it possible to obtain a repeatable friction torque from one headrest to the other.
Selon une réalisation non représentée, les branches 10 du U de la pince 4 sont pourvues de moyens d'emboitement réciproques, lesdits moyens étant agencés de manière à exercer un effort de rapprochement desdites branches entre elles, permettant l'enserrement de la structure 2, lorsque lesdits moyens sont emboités entre eux. According to an embodiment not shown, the legs 10 of the U of the clamp 4 are provided with reciprocal interlocking means, said means being arranged to exert a force of approaching said branches together, enabling the structure 2 to be clamped together, when said means are nested between them.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1160385A FR2982545B1 (en) | 2011-11-15 | 2011-11-15 | AUTOMOTIVE VEHICLE SEAT HEAD SUPPORT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1160385A FR2982545B1 (en) | 2011-11-15 | 2011-11-15 | AUTOMOTIVE VEHICLE SEAT HEAD SUPPORT |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2982545A1 true FR2982545A1 (en) | 2013-05-17 |
FR2982545B1 FR2982545B1 (en) | 2014-05-16 |
Family
ID=45558193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1160385A Expired - Fee Related FR2982545B1 (en) | 2011-11-15 | 2011-11-15 | AUTOMOTIVE VEHICLE SEAT HEAD SUPPORT |
Country Status (1)
Country | Link |
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FR (1) | FR2982545B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022128742A1 (en) * | 2020-12-15 | 2022-06-23 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle seat |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4844544A (en) * | 1987-06-30 | 1989-07-04 | Tachi-S Co., Ltd. | Fore-and-aft adjusting device for head rest |
GB2240920A (en) * | 1990-02-16 | 1991-08-21 | Ford Motor Co | Head restraint for a motor vehicle seat |
US20100283307A1 (en) * | 2008-11-28 | 2010-11-11 | Tokai Chemical Industries, Ltd. | Head rest apparatus |
-
2011
- 2011-11-15 FR FR1160385A patent/FR2982545B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4844544A (en) * | 1987-06-30 | 1989-07-04 | Tachi-S Co., Ltd. | Fore-and-aft adjusting device for head rest |
GB2240920A (en) * | 1990-02-16 | 1991-08-21 | Ford Motor Co | Head restraint for a motor vehicle seat |
US20100283307A1 (en) * | 2008-11-28 | 2010-11-11 | Tokai Chemical Industries, Ltd. | Head rest apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022128742A1 (en) * | 2020-12-15 | 2022-06-23 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle seat |
Also Published As
Publication number | Publication date |
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FR2982545B1 (en) | 2014-05-16 |
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