WO2016157409A1 - Dispositif de coulissement de siège pour véhicule - Google Patents

Dispositif de coulissement de siège pour véhicule Download PDF

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Publication number
WO2016157409A1
WO2016157409A1 PCT/JP2015/060122 JP2015060122W WO2016157409A1 WO 2016157409 A1 WO2016157409 A1 WO 2016157409A1 JP 2015060122 W JP2015060122 W JP 2015060122W WO 2016157409 A1 WO2016157409 A1 WO 2016157409A1
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WO
WIPO (PCT)
Prior art keywords
pair
movable rail
rail
side walls
fixed rail
Prior art date
Application number
PCT/JP2015/060122
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English (en)
Japanese (ja)
Inventor
耕司 桑村
知徳 吉田
Original Assignee
ジョンソン コントロールズ テクノロジー カンパニ－
耕司 桑村
知徳 吉田
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ジョンソン コントロールズ テクノロジー カンパニ－, 耕司 桑村, 知徳 吉田 filed Critical ジョンソン コントロールズ テクノロジー カンパニ－
Priority to JP2017508922A priority Critical patent/JPWO2016157409A1/ja
Priority to CN201580078240.6A priority patent/CN107614316A/zh
Priority to PCT/JP2015/060122 priority patent/WO2016157409A1/fr
Publication of WO2016157409A1 publication Critical patent/WO2016157409A1/fr

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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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/07—Slide construction

Definitions

  • the present invention relates to a vehicle seat slide device.
  • Patent Document 1 Japanese Patent Laid-Open No. 8-127270 (Patent Document 1) describes an example of a vehicle seat slide device.
  • the vehicle seat slide device described in Patent Literature 1 includes a fixed rail, a movable rail, and a roller.
  • the fixed rail is fixed to a floor surface of a vehicle body of a vehicle, and the cross-sectional shape is formed in a substantially rectangular frame shape having an opening at the top.
  • the movable rail has an upper portion attached to a seat (seat) and a lower portion that has entered the interior of the fixed rail through the opening of the fixed rail and is engaged with the frame-shaped inside of the fixed rail.
  • the rollers are provided at both ends in the longitudinal direction of the movable rail and can roll with respect to the inner surface of the fixed rail. With this configuration, the movable rail can be slid in the longitudinal direction relative to the fixed rail, and the sheet to which the movable rail is attached can be slid in the longitudinal direction.
  • the movable rail is provided with a lock lever that can move up and down and is normally biased downward, and a plurality of lock holes that engage with the lowered lock lever are formed in the bottom wall of the fixed rail.
  • the lock lever can be engaged with an arbitrary lock hole by sliding the movable rail with respect to the fixed rail. Thereby, the user can slide the seat and lock it in a desired position.
  • the movable rail is engaged with the fixed rail with almost no gap. Therefore, if the fixed rail fixed to the vehicle body is deformed due to a large external force applied to the vehicle body, the sliding resistance of the movable rail with respect to the fixed rail increases, and the movable rail may not be able to move smoothly.
  • an object of the present invention is to provide a vehicle seat slide device capable of smoothly moving a movable rail relative to a fixed rail even if the fixed rail or the movable rail is deformed.
  • the cross-sectional shape is a bottom wall, a pair of opposing side walls, and a pair of top walls provided in parallel with the bottom wall so that the front end edges are spaced apart from each other.
  • a fixed rail that has a rectangular frame shape and extends in one direction, and is disposed in the fixed rail with a gap between the bottom wall, the pair of side walls, and the pair of top walls.
  • a base roller that is connected to the base and urged against the inner surfaces of the pair of top walls, and a main roller that is attached to the base and abuts against a support portion that extends from the bottom wall or the pair of side walls.
  • the base has a pair of protrusions protruding toward the pair of side walls, Each of the pair of side walls is a surface inclined so as to approach the center position between the pair of side walls as it goes from the bottom wall side to the top wall side, and the base portion is on either side of the pair of side walls.
  • a seat slide device having an inclined surface that comes into contact with the protruding portion when moved so as to approach the pair of top walls while being displaced.
  • the movable rail can be smoothly moved relative to the fixed rail.
  • FIG. 1 is a perspective view for explaining a seat slide device 1 which is an example of a vehicle seat slide device according to an embodiment.
  • FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1 for explaining the reference engagement state of the fixed rail 2 and the movable rail 3 included in the seat slide device 1.
  • FIG. 3 is a bottom view of the movable rail 3.
  • FIG. 4 is a perspective view showing the main roller 21 and related members included in the movable rail 3, a pair of top wall contact mechanisms K 1, and the slide lock device 12.
  • FIG. 5 is a left side view of the top wall contact mechanism K1 in FIG.
  • FIG. 6 is a cross-sectional view at the VI-VI position in FIG.
  • FIG. 8 is a cross-sectional view for explaining a state in which the movable rail 3 is moved upward with respect to FIG.
  • FIG. 9 is a cross-sectional view for explaining a state in which the movable rail has moved to the upper right with respect to FIG.
  • FIGS. 1 to 9 A vehicle seat slide device according to an embodiment will be described with reference to FIGS. 1 to 9 using a seat slide device 1 as a preferred embodiment.
  • the forward and backward directions of the vehicle body are indicated as FR, RR, LH, RH, UP, and LWR with the forward direction of the vehicle body as the forward direction. It is shown. Therefore, as a single body of the seat slide device 1, the front-rear direction can be called the longitudinal direction, the left-right direction can be called the width direction, and the up-down direction can be called the height direction.
  • FIG. 1 shows a seat slide device 1 including a fixed rail 2 extending in one direction (front-rear direction) and a movable rail 3 that engages with a part of the fixed rail 2 and is movable in the extending direction. It is a perspective view explaining.
  • the fixed rail 2 is shown with a part broken for grasping the shape of the movable rail 3.
  • 2 is a cross-sectional view taken along the line II-II in FIG.
  • FIG. 3 is a bottom view of the movable rail 3.
  • the seat slide device 1 includes a fixed rail 2 and a movable rail 3.
  • the fixed rail 2 extends in the front-rear direction, and has a cross-sectional shape formed by extrusion molding into a rectangular frame shape having an opening upward. As shown in FIG. 2, the fixed rail 2 has a cross-sectional shape that is symmetrical with respect to a center line CL ⁇ b> 2 that extends vertically.
  • the fixed rail 2 includes a bottom wall 2a fixed to the vehicle body, a pair of side walls 2b and 2b erected upward from both left and right ends of the bottom wall 2a, and inward from the tops of the pair of side walls 2b and 2b.
  • top walls 2c and 2c Bending and having top walls 2c and 2c extending substantially parallel to the bottom wall 2a so as to face each other.
  • the leading edge portions of the top walls 2c, 2c that face each other are spaced apart from each other to form opposed edges 2c1, 2c1.
  • the opposing edge portions 2c1 and 2c1 define a slit Dp1 (opening) that is sufficiently wider than the thickness of a plate-like portion 3b (details will be described later) extending in the up-down and front-back directions of the movable rail 3, and are spaced apart in parallel. is doing.
  • Support portions 2d and 2d projecting inward so as to approach each other are formed at portions of the inner surfaces 2b1 and 2b1 of the pair of side walls 2b and 2b on the bottom wall 2a side.
  • the top surfaces on the front end side of the support portions 2d and 2d are support surfaces 2d1 and 2d1 which are inclined surfaces that incline so as to spread leftward and rightward as they go upward in the cross-sectional shape.
  • the support surfaces 2d1 and 2d1 are not limited to planes and may be curved surfaces. In the case of a curved surface, for example, it is formed of a concave circumferential surface or a convex circumferential surface having a circular cross-sectional shape. Here, the case of a concave peripheral surface will be described.
  • the support surfaces 2d1 and 2d2 have circular arcs in cross section, and the arcs have a radius from the center Pa located on the center line CL2 above the support portions 2d and 2d, for example, as shown in FIG.
  • the arc is Ra.
  • the radius Ra is, for example, 25 mm.
  • the fixed rail 2 has a substantially rectangular cross-sectional shape surrounded by the side walls 2b, 2b, the top walls 2c, 2c, and the support portions 2d, 2d inside the U-shaped frame shape.
  • a rectangular parallelepiped space Va is formed.
  • the fixed rail 2 is used in such a posture that the bottom wall 2a is fixed to the floor surface of the vehicle body with a bolt or the like, and the center line CL2 is in a vertical direction in a natural state.
  • the movable rail 3 includes a base portion 3a that is housed in the space Va, and a plate-like portion 3b that extends upward in the left-right direction (width direction) center of the base portion 3a and is formed by extrusion molding. Has been.
  • a seat cushion frame 51 (illustrated by an alternate long and short dash line in FIG. 2) is connected to an upper portion of the plate-like portion 3b.
  • the movable rail 3 is formed symmetrically with respect to the center line CL3.
  • the center line CL3 coincides with the center line CL2 of the fixed rail 2.
  • the reference engagement state is a natural engagement state between the fixed rail 2 and the movable rail 3, and is an engagement state that serves as a reference in design and use.
  • a recess 3a1 is formed which is bent from the bottom surface side.
  • the interior of the recess 3a1 is a substantially cubic space Vb.
  • the left and right walls of the recess 3a1 are side walls 3a2 and 3a2.
  • the main rollers 21 and 21 are rotatably supported on the base 3a.
  • pins 22 having an axial direction in the left and right direction are press-fitted and attached to the side walls 3a2 and 3a2 of the base 3a.
  • the lower side of the main rollers 21 and 21 protrudes downward from the lower end position of the base portion 3a without being accommodated in the space Vb.
  • a pair of main rollers 21 and 21 are externally fitted to the pin 22 so as to be rotatable in a posture that is symmetrical with respect to the center line CL3.
  • Each of the pair of main rollers 21 and 21 is formed with a contact portion 21a (FIG. 4) having a larger diameter than other portions on the end portion which is outward in the axial direction.
  • the outer peripheral surface of the contact portion 21a includes an abutting surface 21a1 that has an arc shape in the longitudinal cross-sectional shape shown in FIG. 2 and abuts against the support surface 2d1 of the fixed rail 2.
  • the arc in the longitudinal cross-sectional shape of the contact surface 21a1 is an arc that becomes smaller in diameter toward the outside in the axial direction.
  • This arc is, for example, an arc defined by a radius Rb from a center Pb located on a line segment connecting the center Pa and the support surface 2d1.
  • the pair of main rollers 21 and 21 are urged in a direction away from the side wall 3a2, that is, a direction approaching each other, by spring washers 23 and 23 interposed between the left and right ends thereof and the side walls 3a2 and 3a2. .
  • the spring washer 23 has a through hole 23a, and a pin 22 is inserted through the through hole 23a.
  • a predetermined gap W is formed between the outer surface of the base 3 a of the movable rail 3 and the inner surface of the fixed rail 2 in the reference engagement state.
  • the predetermined gap is indicated by, for example, a gap distance Wa in the left-right direction in FIG.
  • the downward direction is indicated by a gap distance Wb, for example.
  • the upward direction is indicated by, for example, a gap distance Wc (shown only on the right side; the same applies to the left side).
  • the movable rail 3 tends to move downward (drop) by the dead weight of the movable rail 3 and the seat connected to the movable rail 3 by the seat cushion frame 51.
  • This movement is regulated by the main roller 21 coming into contact with the support portion 2d of the fixed rail 2.
  • the movable rail 3 is supported by the fixed rail 2 in the reference engagement state, with the contact surfaces 21a1 and 21a1 of the pair of main rollers 21 and 21 being in point contact with the pair of support surfaces 2d1.
  • the point where the contact surface 21a1 makes point contact with the support surface 2d1 is referred to as a support point Ps.
  • the seat slide device 1 is adapted to maintain point contact at the support point Ps even when vibrations or impacts caused by traveling of the vehicle body are applied and the movable rail 3 attempts to move upward. . Further, even when the movable rail 3 moves upward and rises instantaneously, a top wall contact mechanism K1 is provided so that the point rail is immediately returned to the support state.
  • the top wall abutting mechanism K1 is a mechanism that includes a secondary roller 31 that urges and abuts against the top wall 2c of the fixed rail 2 and urges the fixed rail 2 upward (relatively the movable rail 3 downward).
  • a pair of the movable rails 3 are provided apart from each other in the front-rear direction.
  • FIG. 4 is a perspective view showing an excerpt of the pair of main rollers 21 and 21 and their related members and the pair of top wall contact mechanisms K1 and K1.
  • the movable rail 3 is not shown for easy understanding.
  • FIG. 5 is a left side view for explaining the top wall abutting mechanism K1 provided in front of the pair of top wall abutting mechanisms K1, K1 provided on the movable rail 3 (FIG. 4). Arrow view DB diagram).
  • the top wall abutting mechanism K1 provided at the rear has the same configuration and is shown in a shape obtained by horizontally reversing the shape shown in FIG.
  • the top wall abutting mechanism K1 has a pair of sub-rollers 31 and 31 and is disposed inside the pair of recesses 3a1 and 3a1 in which the main rollers 21 and 21 are provided in the extending direction of the movable rail 3. Yes. Specifically, a pair of accommodating portions 3a3 and 3a3 (see FIG. 3) and escape portions 3g and 3g are formed on the base 3a of the movable rail 3 so as to be turned upward from the lower side. The top wall contact mechanism K1 is accommodated in 3a3 and the escape portion 3g.
  • the top wall contact mechanism K1 includes a bracket 32 and a pair of left and right sub-rollers 31 and 31 that are rotatably supported by the bracket 32.
  • the top wall abutting mechanism K1 includes a pin 33 that connects the bracket 32 to the movable rail 3, a pair of levers 34 and 34 that urge the bracket 32 around the pin 33, a main body portion 35a, and a holding portion. And a damper 35 having 35b.
  • the bracket 32 is formed in a substantially U shape that opens upward in the cross-sectional shape. That is, the bracket 32 includes a bottom portion 32a and a pair of side portions 32b and 32b extending upward from both left and right end portions of the bottom portion 32a.
  • a pin 33 is rotatably inserted in the left-right direction slightly forward from the center in the front-rear direction of the pair of side portions 32b, 32b. Both ends of the pin 33 are press-fitted and fixed to the left and right housing side walls 3a4 of the housing portion 3a3 of the base portion 3a (see FIG. 3). Therefore, the bracket 32 is supported by the base 3a so as to be rotatable about the pin 33 as a rotation center. That is, the pair of sub rollers 31 are integrally connected to the base portion 3a via the bracket 32.
  • the lever 34 is a spring member formed in a substantially arcuate shape that extends in the front-rear direction and has a central portion that is recessed below both ends.
  • a pair of levers 34 are juxtaposed in the left-right direction.
  • the lever 34 includes a main body portion 35a of the damper 35 positioned at the upper side with the holding portion 35b attached to the base portion 3a, an upper end portion of the side portion 32b of the bracket 32 positioned on the lower side, and a center portion in the front-rear direction. It is sandwiched between. Further, the lever 34 is at a position where the front and rear end sides (the left end side in FIG. 5) of the movable rail 3 are spaced above the pin 33.
  • Sub-rollers 31 and 31 are rotatably supported on the front and rear end sides (left end side in FIG. 5) of the pair of side portions 32b of the bracket 32 so that the horizontal direction is the axial direction. As shown in FIG. 5, the upper ends of the sub-rollers 31, 31 are located higher than the damper 35 and protrude upward.
  • the contact surfaces 21 a 1 and 21 a 1 of the main rollers 21 and 21 make point contact with the support surface 2 d 1 of the fixed rail 2.
  • the downward movement of the movable rail 3 is restricted.
  • the contact surface 21a1 and the support surface 2d1 are formed as peripheral surfaces whose positions become higher as they move away from the center line CL2 in the left direction and the right direction, respectively, the left and right directions of the movable rail 3 are substantially positioned. Is done.
  • the top wall contact mechanism K1 is in the state shown in FIG. 5 in the reference engagement state. Specifically, the upper end of the sub-roller 31 contacts the top wall lower surface 2c2 of the top wall 2c of the fixed rail 2, and the bracket 32 presses the main body portion 35a of the damper 35 upward at this contact position. ing. Therefore, the bracket 32 is urged by the main body portion 35a of the damper 35 so as to rotate in the clockwise direction around the pin 33 (see the white arrow Y1). 2c2 is biased upward (see black arrow Y2). That is, the movable rail 3 is pressed downward by the reaction force of the biasing of the fixed rail 2 against the top wall lower surface 2c2 by the pair of sub rollers 31 and 31.
  • the movable rail 3 moves smoothly in the front-rear direction by moving the main roller 21 relative to the support surface 2 d 1 and the sub roller 31 relative to the top wall lower surface 2 c 2 relative to the fixed rail 2. It is possible to move to.
  • the seat slide device 1 includes a slide lock device 12 that allows the movable rail 3 to be locked to a fixed rail 2 at a desired position among a plurality of fixed positions set at a predetermined pitch in the front-rear direction. ing.
  • the slide lock device 12 will be described with reference mainly to FIG. 1, FIG. 3, and FIG.
  • the slide lock device 12 has a shaft 12e that is rotatably supported with respect to the movable rail 3 with the vertical direction as an axis.
  • An operation lever 12a extending in the horizontal direction is fixed to the upper part of the shaft 12e, and a lever 12f extending in the horizontal direction is fixed to the lower part.
  • a shaft portion 12d is provided at the distal end portion of the lever 12f, and a lock plate 12c having a rugged shape at the right edge is rotatably attached to the shaft portion 12d.
  • the lock plate 12c is guided by a movement guide portion (not shown) provided on the movable rail 3 side, and moves horizontally without rotation.
  • a coil spring 12b is attached between the operation lever 12a and the plate-like portion 3b of the movable rail 3.
  • the coil spring 12b urges the shaft portion 12d in the clockwise direction when viewed from above in a natural state.
  • the lock plate 12c is further guided through the lever 12f to the movement guide portion and biased so as to move horizontally to the right without rotating (see the white arrow F in FIG. 4).
  • the fixed rail 2 is provided with a plurality of lock holes (not shown) at a predetermined pitch in an appropriate position in the longitudinal direction in which the convex and concave portions of the lock plate 12c can be engaged in a natural state. Yes.
  • the lock plate 12c in the natural state, can be engaged with any one of the lock holes provided in the fixed rail 2, and the movement of the movable rail 3 in the front-rear direction is restricted by the engagement.
  • the user When moving the seat of the vehicle body to a desired front-rear position, first, the user locks the lock plate 12c by turning the operation lever 12a integrated with the shaft portion 12d in the direction opposite to the biasing direction of the coil spring 12b. Remove from the hole and release the lock. In this unlocked state, the movable rail 3 and the seat connected to the movable rail 3 can be manually moved in the front-rear direction with respect to the fixed rail 2. Therefore, after the user moves the seat to a desired position, the user releases the operation lever 12a to the natural state again, and engages the lock plate 12c with the lock hole closest to the desired position to make the lock state again.
  • the shaft portion 12d and the lock plate 12c are not directly connected but connected via a lever 12f.
  • the position of the shaft portion 12d supported by the movable rail 3 and the position of the lock plate 12c attached to the tip of the lever 12f do not coincide with each other and are shifted in the horizontal direction. Therefore, even if a large external force is applied to the fixed rail 2 in the locked state, the force is not directly applied to the shaft portion 12d from the lock plate 12c engaged with the fixed rail 2. That is, there is little possibility that the movable rail 3 supporting the shaft portion 12d will be deformed.
  • the seat slide device 1 even when a force enough to deform the fixed rail 2 is applied to the fixed rail 2 in the locked state of the movable rail 3, the force is applied to the movable rail via the slide lock device 12. 3 is less likely to be transmitted to the movable rail 3 and is less likely to be deformed. Therefore, the increase in sliding resistance due to the deformation of the movable rail 3 does not substantially occur, and the movable rail 3 can be moved smoothly.
  • a pair of top wall contact mechanisms K1 is provided in the longitudinal direction (extending direction) of the movable rail 3 with the slide lock device 12 interposed therebetween.
  • the spring constants of the lever 34 and the damper 35 of one top wall contact mechanism K1 the spring constants of the lever 34 and the damper 35 of the other top wall contact mechanism K1
  • the swing of the movable rail 3 with respect to the fixed rail 2 hardly occurs. Further, even if the swing occurs, the swing amount is small and the damping is fast.
  • This swing is a swing in which both ends of the movable rail 3 move up and down with the engagement position between the lock plate 12c and the lock hole as a fulcrum.
  • the seat slide device 1 can move the movable rail 3 back and forth smoothly even when the vehicle occupant is seated on a seat connected to the movable rail 3. Further, the lever 34 can be softly received after the fall-down fruit juice applied to the seat back generated when the occupant leans against a well-known seat back (not shown) constituting the seat.
  • a predetermined gap is formed between the inner surface of the fixed rail 2 and the outer surface of the movable rail 3.
  • the distance of the predetermined gap can be set in consideration of the magnitude of the external force that can be applied to the vehicle body and the rigidity and mass of the fixed rail 2 and the movable rail 3. For example, the greater the external force that can be applied to the vehicle body, the greater the amount of deformation of the fixed rail 2, so the distance of the gap is set larger to allow the deformation.
  • the movable rail 3 can be moved smoothly.
  • the pair of support portions 2d also approach each other.
  • the point Ps is displaced upward. That is, the movable rail 3 is displaced upward.
  • a gap exemplified by a gap distance Wc is formed between the movable rail 3 and the fixed rail 2.
  • the sub roller 31 is allowed to rotate around the pin 33 that resists the elastic repulsive force while receiving the elastic repulsive force by the damper 35. Therefore, the upward displacement of the movable rail 3 is allowed. Thereby, the smooth movement of the movable rail 3 is maintained and secured.
  • the pair of side walls 2b of the fixed rail 2 When the pair of side walls 2b of the fixed rail 2 is expanded and deformed so as to be separated from each other, the pair of support portions 2d are also separated from each other, and the support point Ps is displaced downward. That is, the movable rail 3 is displaced downward. Also in this case, a gap W exemplified by a gap distance Wb is formed below the movable rail 3 with the fixed rail, and the secondary roller 31 is elastically repelled by the damper 35 as described above. Therefore, the movable rail 3 is allowed to move downward. Thereby, the smooth movement of the movable rail 3 is maintained and secured.
  • the auxiliary roller 31 When the vertical expansion / contraction deformation of the fixed rail 2 occurs, the auxiliary roller 31 always urges and abuts the top wall lower surface 2c2 regardless of the expansion / contraction deformation by the urging structure of the top wall abutting mechanism K1. Thereby, the smooth movement of the movable rail 3 is maintained and secured.
  • the movable rail 3 Since the seat slide device 1 has the gap W between the fixed rail 2 and the movable rail 3, the movable rail 3 is used when the vehicle body vibrates with a large amplitude or when a large impact force is applied to the vehicle body. May be greatly displaced in the space Va upward and in the left-right direction.
  • the seat slide device 1 has a structure (also referred to as a return structure K2) that immediately returns to the reference engagement state with respect to the displacement of the movable rail 3 above and in the left-right direction (including the diagonally upward direction). This will be described in detail with reference to FIGS.
  • FIG. 6 is a view showing only the fixed rail 2 and the movable rail 3 in the reference engagement state, and is a cross-sectional view taken along the VI-VI position in FIG.
  • FIG. 7 is an enlarged view of a portion A in FIG.
  • the base 3a of the movable rail 3 has a through hole 3ah penetrating in the longitudinal direction as a lightening hole.
  • the return structure K2 includes a fixed rail 2 and a movable rail 3. Since the return structure K2 has a symmetrical shape with respect to the center line CL2 and the center line CL3 that coincide with each other in the reference engagement state, a description will be given mainly of the A portion on the right side in FIG.
  • the return structure K2 on the fixed rail 2 side is formed at a connecting portion between the side wall 2b and the top wall 2c.
  • a regulation projecting portion 2e that projects in a substantially triangular cross-sectional shape in the space Va is formed.
  • the restricting protrusion 2e is parallel to the center line CL2, and extends in the up / down / front / rear direction, a lower plane 2g extending horizontally from the lower end of the side plane 2f and away from the center line CL2,
  • An inner inclined surface 2h that is connected to the right end portion of the plane 2g and is inclined upward as it goes to the right is formed.
  • the distance in the left-right direction between the pair of left and right side planes 2f, 2f is a distance La (FIG. 6).
  • an extended portion 2j whose width expands so as to bulge outwardly corresponding to the restricting protruding portion 2e is formed.
  • the extended portion 2j has a lower inclined surface 2j1 that is inclined outward with respect to the inner surface 2b1, and a side bottom surface 2j2 that is connected to the upper end of the lower inclined surface 2j1 and extends in the vertical direction. Further, the upper end of the side bottom surface 2j2 and the right end of the inner inclined surface 2h are connected by a back inclined surface 2k that is inclined downward as it goes outward.
  • This back inclined surface 2k is a surface inclined so as to approach the central position (position of the center line CL2) between the pair of side walls 2b as it goes from the bottom wall 2a to the top wall 2c (that is, upward) ( That is, the back inclined surface 2k is “a surface inclined so as to approach the center position between the pair of side walls as it goes from the bottom wall side to the top wall side”.
  • the distance in the left-right direction between the pair of left and right side bottom surfaces 2j2, 2j2 is defined as a distance Lb.
  • the distance in the left-right direction between the side plane 2f and the side bottom surface 2j2 is defined as a distance ⁇ .
  • the return structure K2 on the movable rail 3 side is substantially symmetrical to the shape on the fixed rail 2 side in the upper left and upper right portions of the base 3a, and is formed in a symmetrical shape with respect to the center line CL3.
  • the protrusions 3d and 3d formed obliquely upward so as to be separated from the center line CL3 and the vicinity thereof correspond to the upper portions of the pair of side surfaces 3c and 3c in the base portion 3a.
  • the upper right protrusion 3d in FIG. 6 and the vicinity thereof will be described with reference to FIG.
  • the side surface 3c is formed as a plane extending in the up / down and front / rear direction.
  • the protruding portion 3d has a protruding inclined surface 3d1, a return inclined surface 3d2, and an upper inclined surface 3d3.
  • the protruding inclined surface 3d1 is an inclined surface that is connected to the upper end of the side surface 3c and goes rightward (outward from the center line) as it goes upward.
  • the return inclined surface 3d2 is a surface that is connected to the obliquely upper end of the protruding inclined surface 3d1 and is slightly inclined leftward (toward the center line CL3) as it goes upward.
  • the upper inclined surface 3d3 is a surface that is connected to the upper end of the return inclined surface 3d2 and is inclined downward toward the left (toward the center line CL3).
  • the protruding inclined surface 3d1 and the return inclined surface 3d2 are gently connected with a relatively large R at the ridgeline (first ridgeline portion) indicated by the connecting portion P1.
  • the return inclined surface 3d2 and the upper inclined surface 3d3 have a relatively small R at the ridgeline (second ridgeline portion) indicated by the connection portion P2 and are connected steeply (in short, the cross-section of the ridgeline at P2).
  • the curvature is smaller than the curvature of the cross section of the ridgeline at P1).
  • the protruding portion 3d has the connecting portion P1 positioned on the outermost side in the left-right direction.
  • the distance in the left-right direction between the pair of left and right connecting portions P1, P1 is defined as a distance Lc.
  • the inclination angles of the surfaces of the protrusion 3d in the reference engagement state in which the center line CL3 is vertical are represented by the following angles ⁇ 1 to ⁇ 4.
  • An inclination angle (subordinate angle) of the protruding inclined surface 3d1 with respect to the horizontal plane LH is defined as an angle ⁇ 1.
  • An inclination angle (subordinate angle) of the return inclined surface 3d2 with respect to the vertical surface LV is defined as an angle ⁇ 2.
  • An inclination angle (subordinate angle) of the upper inclined surface 3d3 with respect to the horizontal plane LH is defined as an angle ⁇ 3.
  • An angle (recess angle) of the back inclined surface 2k with respect to the upper inclined surface 3d3 is defined as an angle ⁇ 4.
  • the angles ⁇ 1 to ⁇ 4 are set to the following values, for example.
  • the angle ⁇ 1 is about 40 °
  • the angle ⁇ 2 is about 14 °
  • the angle ⁇ 3 is about 13 °
  • the angle ⁇ 4 is about 118 °. These angle values are illustrated for ease of understanding, and do not limit the angle values.
  • the protruding inclined surface 3d1 and the lower inclined surface 2j1 of the extended portion 2j of the fixed rail 2 are substantially parallel to each other. Further, the upper inclined surface 3d3 and the inner inclined surface 2h of the extended portion 2j of the fixed rail 2 are substantially parallel to each other.
  • the center line CL2 and the center line CL3 coincide with each other. That is, as shown in FIG. 6, when the gap distance between the connecting portion P1 and the side bottom surface 2j2 is a distance ⁇ , the distance ⁇ is equal on the left side and the right side (relative to the center lines CL2 and CL3).
  • the gap distance Wa (FIG. 6), which is the distance between the side surface 3c of the base 3a of the movable rail 3 and the inner surface 2b1 of the side wall 2b of the fixed rail 2, is equal to the distance ⁇ . Is set.
  • FIG. 8 shows a state in which the movable rail 3 is moved upward from the reference engagement state shown in FIG.
  • the protrusion 3d abuts against the restricting protrusion 2e so that the upward movement of the movable rail 3 (see the white arrow Da) does not become excessive, and the upward movement is restricted.
  • the distance La is set smaller than the distance Lc (La ⁇ Lc).
  • the upper inclined surface 3d3 of the protruding portion 3d is in contact with the inner inclined surface 2h of the restricting protruding portion 2e.
  • the pair of left and right inner inclined surfaces 2h, 2h are formed as inclined surfaces that go upward as they move left and right from the center line CL2. Specifically, it is formed as an inclined surface having an angle ⁇ 3 in parallel with the upper inclined surface 3d3 of the base portion 3a. Accordingly, the base 3a urged against the pair of inner inclined surfaces 2h, 2h by the pair of projecting portions 3d, 3d is contacted on the left side and the right side, and the left lower side and the lower right side from the inner inclined surface 2h, respectively. Reaction force F1 and reaction force F2 are applied. As for the reaction force F1 and the reaction force F2, since the pair of inner inclined surfaces 2h have a left-right symmetrical shape, their left-right direction components cancel each other. Therefore, the base portion 3a is not displaced leftward or rightward, and the base portion 3a moves directly below after the upward movement is restricted and shifts to the reference engagement state.
  • the restriction of the upward movement of the movable rail 3 by the restriction protrusion 2e is performed in the same manner even when the movable rail 3 is moved upward at a position that is maximally displaced leftward or rightward from the reference engagement state.
  • a distance La to a distance Lc, and a distance ⁇ and a distance ⁇ are set.
  • the restriction of the upward movement is similarly performed when the movable rail 3 is obliquely moved from the reference engagement state to the upper left or the upper right.
  • FIG. 9 shows a cross-sectional view when the movable rail 3 is moved upward with the maximum displacement to the right.
  • FIG. 9 is a cross-sectional view corresponding to FIG.
  • the state in which the movable rail 3 is positioned upward while being displaced leftward or rightward is referred to as a biased engagement state.
  • the state of being displaced upward to one side and positioned upward is also referred to as a maximum biased engagement state.
  • the maximum bias engagement state will be described.
  • the movable rail 3 is movable to the maximum distance ⁇ (gap distance Wa) from the reference engagement state to the right (the same applies to the left).
  • the right side surface 3c of the base portion 3a contacts the inner surface 2b1 of the side wall 2b of the fixed rail 2, and the connection portion P1 also contacts the side bottom surface 2j2 of the extension portion 2j.
  • the left protrusion 3d of the base 3a abuts on the left restricting protrusion 2e to restrict further upward movement of the movable rail 3.
  • the distance Lc is set larger than the distance obtained by adding the distance La and the distance ⁇ . That is, Lc> La + ⁇ (Formula 3) It is. From (Expression 1) to (Expression 3), the distance La to the distance Lc are Lc> (La + Lb) / 2 (Formula 4) Is set.
  • the bias engagement state may occur when the vehicle body vibrates having a large left-right direction component and vertical direction component, or when an impact force is applied to the vehicle body.
  • the movement (sliding) of the movable rail 3 with respect to the fixed rail 2 can be performed without any problem even in the biased engagement state, but is basically in the reference engagement state from the stress state generated in each member. It is most desirable to move. Therefore, in the seat slide device 1, by providing the return structure K2, the movable rail 3 that has reached the biased engagement state is actively guided and returned to the reference engagement state.
  • the behavior of the movable rail 3 in the maximum biased engagement state shown in FIG. 9, that is, when the movable rail 3 moves upward (white arrow Db) at the position closest to the right side will be described in detail.
  • the left protrusion 3d of the base 3a abuts on the restricting protrusion 2e of the fixed rail 2 as described above.
  • the upper inclined surface 3d3 of the protruding portion 3d is in urging contact with the inner inclined surface 2h of the restricting protruding portion 2e.
  • the protrusion 3d of the base 3a receives a reaction force orthogonal to the inclined surface 2h of the restriction protrusion 2e, that is, a reaction force F3 directed downward to the left, from the restriction protrusion 2e.
  • the protruding portion 3d on the right side of the base portion 3a has the connecting portion P2 urged against the back inclined surface 2k of the extended portion 2j of the fixed rail 2.
  • a concave portion 3a6 is formed on the upper surface 3a5 of the base portion 3a so as to avoid contact with the restricting protruding portion 2e so that the connecting portion P2 of the protruding portion 3d is urged and brought into contact with the deep inclined surface 2k.
  • the inner inclined surface 2k is formed as an inclined surface that goes inward (centerline CL2 side) as it goes upward, the base 3a is opposite to the lower left surface (downward on the centerline CL2 side) from the inner inclined surface 2k. Receives force F4.
  • the main forces that the base 3a receives from the fixed rail 2 side are only the reaction force F3 and the reaction force F4.
  • the reaction force F3 and the reaction force F4 are both forces that move the base portion 3a to the lower left, so the base portion 3a moves leftward from the state displaced rightward and returns to the reference engagement state.
  • the width ARa in the left-right direction in which the back inclined surface 2k is formed is set to be equal to the distance ⁇ (Wa), for example.
  • the connecting portion P2 of the projecting portion 3d is not inclined when the base portion 3a moves upward at a position displaced by a predetermined distance or more without being displaced to the maximum right or left.
  • the base 3a is in contact with 2k and receives a reaction force that moves in the direction opposite to the displaced left or right direction.
  • the predetermined distance is a distance Lc1 shown in FIG. That is, the distance in the left-right direction between the connection portion P2 in the reference engagement state and the connection position between the back inclined surface 2k and the inner inclined surface 2h.
  • the distance Lc1 is determined by the angle ⁇ 2, which is the inclination angle of the return inclined surface 3d2, and the distance in the left-right direction between the connection portion P1 and the connection portion P2.
  • the distance Lc1 is set to secure a larger upward movable distance even when the base 3a is greatly displaced to the left or right. If the distance Lc1 is increased, the interference area in the left-right direction between the projecting portion 3d and the restricting projecting portion 2e is reduced. Therefore, the distance Lc1 is appropriately set in consideration of the displacement amount allowed for the movable rail 3 in the space Va.
  • This distance Lc1 can be set by providing the return inclined surface 3d2. Further, by providing the return inclined surface 3d2, it is possible to increase the thickness of the protruding portion 3d on the tip side. Further, the angle ⁇ 1 and the angle ⁇ 3 of the protruding portion 3d are set so that the root side is thicker than the tip side. That is, angle ⁇ 3 ⁇ angle ⁇ 1. As a result, the base portion 3a moves upward, leftward, or rightward at a high speed due to excessive external force applied to the vehicle body, and collides with any one of the restricting protruding portion 2e, the side bottom surface 2j2, and the back inclined surface 2k. Even in this case, the protrusion 3d is less likely to be deformed or damaged.
  • the seat slide device 1 is moved upward in a position where the movable rail 3 is displaced leftward or rightward in the space Va that is a displacement allowable space of the movable rail 3 formed in the fixed rail 2.
  • the movable rail 3 can be moved in the longitudinal direction, and is naturally returned to the reference engagement state. Thereby, a more preferable engagement state is always maintained.
  • the bracket 32 is configured such that the pair of levers 34, 34 arranged side by side are always urged downward. Accordingly, the pair of sub rollers 31, 31 supported by the bracket 32 always press the top wall lower surfaces 2 c 2, 2 c 2 of the fixed rail 2 upward. Accordingly, the main rollers 21 and 21 attached to the movable rail 3 always press the support surfaces 2d1 and 2d1 of the fixed rail 2 downward. The pressure contact between the sub-rollers 31 and 31 and the main rollers 21 and 21 is continuously maintained without being affected by the vibration to the extent that the vibration is generated during normal traveling of the vehicle body.
  • the spring washer 23 is interposed between the main rollers 21 and 21 and the side wall 3a2 of the recess 3a1. Further, the main rollers 21 and 21 and the support surface 2d1 of the fixed rail 2 are in point contact with each other at a support point Ps. As a result, even if the fixed rail 2 or the movable rail 3 is greatly deformed, the support point Ps moves in an arc orbit while maintaining point contact, so that the movable rail 3 moves smoothly with respect to the fixed rail 2.
  • the bracket 32 and the auxiliary rollers 31 and 31 of the top wall contact mechanism K1 are assembled in advance and unitized. Accordingly, the number of assembly steps in the assembly line such as the fixed rail 2 can be reduced. Thereby, the assembly work process of various members is simplified.
  • the contact surface 21a1 of the main roller 21 is a convex circumferential surface and the support surface 2d1 of the fixed rail 2 is a concave circumferential surface.
  • the present invention is not limited to this.
  • the contact surface 21a1 may be a convex circumferential surface and the support surface 2d1 may be an inclined plane.
  • the contact surface 21a1 may be an inclined plane and the support surface 2d1 may be a convex circumferential surface. That is, it is only necessary that at least one surface (contact surface) of the contact surface 21a1 and the support surface 2d1 is formed as a convex curved surface so as to be in point contact.
  • the configuration in which the movable rail 3 is supported by the pair of left and right support portions 2d extending from the pair of side walls 2b of the fixed rail 2 has been described, but is not limited thereto.
  • the support portion 2d may extend from the bottom wall 2a of the fixed rail 2, or the support portion 2d may be provided at one central location to support point contact.
  • the vehicle is not limited to an automobile, but may be a mobile body that includes a vehicle body having a seat, such as an aircraft, a ship, and a railway vehicle body, and moves while the passenger is seated on the seat.
  • a vehicle body having a seat such as an aircraft, a ship, and a railway vehicle body, and moves while the passenger is seated on the seat.
  • the present invention can be used for a seat slide device that slides a seat mounted on a vehicle (automobile, aircraft, ship, railway car body, etc.) that moves an occupant in a seated state.
  • a vehicle autonomous, aircraft, ship, railway car body, etc.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

Cette invention concerne un dispositif de coulissement de siège (1), comprenant : un rail fixe (2) présentant une forme de section transversale en forme de cadre, le rail fixe (2) comprenant une paroi inférieure (2a), une paire de parois latérales (2b), et une paire de parois supérieures (2c) parallèles à la paroi de inférieure (2a) et présentant des bords (2c1) séparés l'un de l'autre ; et un rail mobile (3) conçu pour se déplacer à l'intérieur du rail fixe (2), le rail mobile (3) comprenant une section de base (3a) qui est disposée à l'intérieur du rail fixe (2) avec un espace entre ceux-ci, des rouleaux secondaires (31) qui roulent sur les surfaces internes de la paire de parois supérieures (2c) tout en poussant celles-ci, et des rouleaux principaux (21) qui roulent sur des sections de support (2d) s'étendant à partir de la paire de parois latérales (2b). La section de base (3a) comprend une paire de saillies (3d) faisant saillie vers la paire de parois latérales (2b). Lesdites parois latérales (2b) comprennent respectivement des surfaces inclinées (2k) qui se rapprochent, dans une position inclinée, du centre entre la paire de parois latérales (2b) à mesure que les parois latérales (2b) s'étendent du côté de la paroi inférieure (2a) vers le côté de la paroi supérieure (2c). Lorsque la section de base (3a) est déplacée vers l'une de la paire de parois latérales (2b) et est déplacée de manière à se rapprocher de la paire de parois supérieures (2c), une surface inclinée (2k) vient en contact avec une saillie (3d).
PCT/JP2015/060122 2015-03-31 2015-03-31 Dispositif de coulissement de siège pour véhicule WO2016157409A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2017508922A JPWO2016157409A1 (ja) 2015-03-31 2015-03-31 乗り物用シートスライド装置
CN201580078240.6A CN107614316A (zh) 2015-03-31 2015-03-31 交通工具用座椅滑轨装置
PCT/JP2015/060122 WO2016157409A1 (fr) 2015-03-31 2015-03-31 Dispositif de coulissement de siège pour véhicule

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PCT/JP2015/060122 WO2016157409A1 (fr) 2015-03-31 2015-03-31 Dispositif de coulissement de siège pour véhicule

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JP2018184017A (ja) * 2017-04-24 2018-11-22 アディエント・エンジニアリング・アンド・アイピー・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング シートスライド装置
WO2020077209A2 (fr) 2018-10-11 2020-04-16 Magna Seating Inc. Ensemble de rail long pour réglage de siège de véhicule

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DE102019206304B4 (de) * 2018-05-04 2022-01-27 Lear Corporation Schienenanordnung
US11506272B2 (en) 2020-02-21 2022-11-22 Lear Corporation Track system with a support member
US11358497B2 (en) 2018-05-04 2022-06-14 Lear Corporation Track system having a rolling member
CN114537231A (zh) * 2020-11-24 2022-05-27 诺创汽车科技(上海)有限公司 电动式座椅滑轨总成

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JP2007210597A (ja) * 2006-02-08 2007-08-23 Dymos Inc 車両シートレール
WO2014016888A1 (fr) * 2012-07-23 2014-01-30 ジョンソン コントロールズ テクノロジー カンパニ－ Dispositif de coulissement de siège de véhicule

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JP2002144928A (ja) * 2000-11-16 2002-05-22 Johnson Controls Automotive Systems Corp シートスライド装置

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US5582381A (en) * 1994-05-31 1996-12-10 Alusuisse Technology & Management Ltd. Means for guiding rails longitudinally free of play
JP2007210597A (ja) * 2006-02-08 2007-08-23 Dymos Inc 車両シートレール
WO2014016888A1 (fr) * 2012-07-23 2014-01-30 ジョンソン コントロールズ テクノロジー カンパニ－ Dispositif de coulissement de siège de véhicule

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JP2018184017A (ja) * 2017-04-24 2018-11-22 アディエント・エンジニアリング・アンド・アイピー・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング シートスライド装置
JP7016222B2 (ja) 2017-04-24 2022-02-04 カイパー シーティング メカニズムス カンパニー リミテッド シートスライド装置
WO2020077209A2 (fr) 2018-10-11 2020-04-16 Magna Seating Inc. Ensemble de rail long pour réglage de siège de véhicule

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CN107614316A (zh) 2018-01-19
JPWO2016157409A1 (ja) 2018-01-18

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