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US 12,571,424 B2Granted
Vehicle seat slide rail having a braked rolling bearing cage
AssigneeFAURECIA Sièges d'Automobile
InventorsSylvain Deschamps, Christian Couasnon, Antoine Py, Antoine Viguier
Life of this patent
Estimating the term…
Abstract
A slide rail (1) includes a movable male section (2) and a fixed female section (3) that receives the male section, these being guided with respect to one another by rolling bearing cages (4, 5) that hold rolling bearings, the cages having shoes (P3) that cooperate frictionally with the sections of the slide rail to increase the sliding resistance of the slide rail at the bearing surfaces.
Claims16
A slide rail for a motor vehicle seat, comprising:
- a movable upper male section intended to be attached to a frame of a seat squab, the male section comprising a main wall extending longitudinally in a sliding direction X and transversely in a transverse direction Y along a horizontal plane, as well as a first side wall, on a first side of the main wall, extending in line with the main wall along a first vertical plane, as well as a second side wall, on a second side of the main wall, extending along a second vertical plane, and wherein the first side wall is extended below by a first male part and wherein the second side wall is extended by a second male part,
- a lower, female section, comprising a base wall, intended to be attached to the floor of a vehicle, the base wall extending longitudinally in the sliding direction X and transversely in the transverse direction Y, and wherein the base wall is extended, on a first side, by a first female part receiving the first male part, and forming with the first male part, at least one raceway between the first male part and the first female part, and on a second side, by a second female part, receiving the second male part, and forming with the second male part at least one raceway,
- at least one cage received in an interspace between the first female part of the female section, on the one hand, and the first male part of the male section, on the other hand, according to a first option or received between the second female part of the female section, on the one hand, and the second male part of the male section, on the other hand, according to a second option comprising a body with at least one series of housings, in the longitudinal direction, receiving rolling members cooperating in rolling fashion with a bearing surface of the first male part according to the first option or with a bearing surface of the second male part according to the second option and a bearing surface of the first female part according to the first option or with a bearing surface of the second female part according to the second option,
- wherein the at least one cage comprises, protruding from the body, one or more first shoes configured to slide and rub on the bearing surface of the first male part in contact with the rolling members according to the first option, or on the bearing surface of the second male part in contact with the rolling members according to the second option, and one or more second shoes configured to slide and rub on the bearing surface of the first female part in contact with the rolling members according to the first option, or on the bearing surface of the second male part in contact with the rolling members according to the second option,
- and wherein the first shoes and the second shoes are arranged on the at least one cage, relative to one another, so that in the assembled state of the slide rail, the at least one cage resiliently deforms, under the stress of the first shoes and second shoes respectively in contact against the first male part and the first female part according to the first option, or resiliently deforms, under the stress of the first shoes and the second shoes respectively in contact against the second male part and the second female part, according to the second option.
2 more elements
A slide rail for a motor vehicle seat comprising:
- a movable upper male section intended to be attached to a frame of a seat squab, the male section comprising a main wall extending longitudinally in a sliding direction X and transversely in a transverse direction Y along a horizontal plane, as well as a first side wall, on a first side of the main wall, extending in line with the main wall along a first vertical plane, as well as a second side wall, on a second side of the main wall, extending along a second vertical plane, and wherein the first side wall is extended below by a first male part and wherein the second side wall is extended by a second male part,
- a lower, female section, comprising a base wall, intended to be attached to the floor of a vehicle, the base wall (30) extending longitudinally in the sliding direction X and transversely in the transverse direction Y, and wherein the base wall is extended, on a first side, by a first female part receiving the first male part, and forming with the first male part, at least one raceway between the first male part and the first female part, and on a second side, by a second female part, receiving the second male part, and forming with the second male part at least one raceway,
- at least one cage received in an interspace between the first female part of the female section, on the one hand, and the first male part of the male section, on the other hand, according to a first option or received between the second female part of the female section, on the one hand, and the second male part of the male section, on the other hand, according to a second option comprising a body with at least one series of housings, in the longitudinal direction, receiving rolling members cooperating in rolling fashion with a bearing surface of the first male part according to the first option or with a bearing surface of the second male part according to the section option and a bearing surface of the first female part according to the first option or with a bearing surface of the second female part according to the second option, and wherein the first female part and the first male part define between them a first, lower raceway, and a second, upper raceway, positioned above the first raceway and wherein the at least one cage comprises according to the first option:
- a lower wing comprising a first series of housings receiving first rolling members, received in the first, lower raceway,
- an upper wing comprising a second series of housings receiving second rolling members, received in the second raceway,
- an intermediate wing connecting the lower wing to the upper wing,
- and wherein the second female part and the second male part define between them a third, lower raceway, and a fourth, upper raceway, positioned above the third raceway and wherein the at least one cage comprises according to the second option:
- a lower wing comprising a third series of housings receiving third rolling members, received in the third, lower raceway,
- an upper wing comprising a fourth series of housings receiving fourth rolling members, received in the fourth raceway,
- an intermediate wing connecting the lower wing to the upper wing
- wherein the at least one cage comprises:
- one or more shoes configured to rub and slide on the bearing surface(s) of the first male part in contact with the rolling members, or to rub and slide on the bearing surface(s) of the first female part in contact with the rolling members according to the first option, or one or more shoes configured to rub and slide on the bearing surface(s) of the second male part in contact with the rolling members or to rub on the bearing surface(s) of the second female part in contact with the rolling members according to the second option,
- an intermediate shoe protruding from the intermediate wing configured to slide and rub on a vertical wall of the first female part or to rub on a wing of the first male part according to the first option, or to slide and rub on the second female part or on a wing of the second male part according to the second option,
- by ensuring resilient deformation of the at least one cage, compressed by the support of the intermediate shoe on the vertical wall of the first female part or on the wall of the first male part according to the first option or on the vertical wall of the second female part or on the wall of the first second male according to the second option, on one side of the at least cage, on the one hand, and by the pressing of the shoes pressing against the bearing surface(s), on the other side of the at least one cage.
11 more elements
Dependencies are inferred from the claim text.