JP2020124974A - Vehicular seat - Google Patents

Abstract

To provide a vehicular seat configured so that a support member can be easily aligned with respect to a frame.SOLUTION: A seat cushion has a frame 7 in a frame shape, and a tabular support member 8, provided in the frame 7, which supports an occupant resiliently. Portions of inner side surfaces of left and right side members 14 and 14 of the frame 7 are covered with left and right cover members 60 and 60. The support member 8 has a tabular main body 20 extending in an approximately parallel with the frame 7 and left and right oblique parts 21 extending obliquely from left and right side edges of the main body 20 toward a front side thereof. When the side edges of the left and right oblique parts 21 and 21 contact the corresponding left and right cover members 60 and 60, the support member 8 is aligned with respect to the frame 7. The oblique parts 21 are reinforced by lattice-shape reinforcement parts provided on rear sides thereof, and therefore the oblique parts can be suppressed from deforming, so that a position of the support member with respect to the frame becomes constant.SELECTED DRAWING: Figure 2

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat, and more particularly to a vehicle seat including a support member that supports an occupant.

A vehicle seat is known in which a support member provided inside a seat cushion frame and supporting an occupant is formed of a plate-shaped resin member (for example, Patent Document 1). The support member has a plurality of hooks at its front and rear ends, and each hook is hooked on the front cross member and the rear cross member that form the seat cushion frame.

Patent No. 6309130

Since the support member has a structure in which the front end and the rear end thereof are hooked on the seat cushion frame, it is necessary to position the support member in the left-right direction with respect to the seat cushion frame. Therefore, there is a problem that it takes time to assemble the support member to the seat cushion frame. Further, after the assembling, the support member may be unintentionally shifted to the left and right with respect to the seat cushion frame.

In view of the background described above, an object of the present invention is to provide a vehicle seat in which a support member can be easily positioned with respect to a frame.

In order to solve the above problems, at least some embodiments of the present invention are a vehicle seat (1) having a seat cushion (2) and a seat back (3), wherein the seat cushion and the seat back are A frame-shaped frame (7) provided on at least one side and a support member (8) that is supported by the frame so as to be positioned inside the frame and supports an occupant, and the frame includes a pair of left and right frames. A side member (14) and a cross member (15, 16) connecting corresponding ends of the side members, and the left and right side members cover at least a part of side surfaces facing each other. A member (60) is provided, and the support member includes a plate-shaped main body (20) extending substantially parallel to the frame, and an inclined portion (21) inclined outward from the left and right side edges of the main body. ) And the left and right inclined portions contact the corresponding left and right cover members, and the back surface of the inclined portion is provided with a first reinforcing portion (39) that reinforces the rigidity of the inclined portion. It is characterized by that.

With this configuration, the supporting member can be positioned in the left-right direction with respect to the frame by bringing the inclined portion and the cover member into contact with each other. As a result, the work of assembling the support member to the frame can be facilitated. In addition, it is possible to prevent the support member from shifting to the left and right with respect to the frame after the assembly. Further, the rigidity of the inclined portion can be improved by the first reinforcing portion, and the deformation of the inclined portion can be suppressed. Accordingly, the position of the support member can be fixed with respect to the frame.

At least some embodiments of the present invention are characterized in that, in the above-mentioned configuration, the cover member is supported by the side member.

According to this structure, the cover member is stabilized by being supported by the side member, so that the position of the support member is constant.

In at least some embodiments of the present invention, in the above configuration, the cover member is provided with a second reinforcing portion (64) for reinforcing the rigidity of the cover member, and the second reinforcing portion is the It is characterized in that it is arranged on a lateral extension line of the first reinforcing portion along the surface of the inclined portion.

According to this configuration, the rigidity of the cover member can be improved by the second reinforcing portion, and the deformation of the cover member can be suppressed. Accordingly, the position of the support member can be fixed with respect to the frame.

In at least some embodiments of the present invention, in the above configuration, the first reinforcing portion includes at least one linearly extending first rib (41), and the second reinforcing portion includes at least one linearly extending portion. The first rib and the second rib including the second rib (64) and corresponding to each other are arranged on a common straight line.

According to this configuration, the portion of the support member whose rigidity is improved by the first rib and the portion of the cover member whose rigidity is improved by the side are arranged side by side, so that the deformation of the support member and the cover member can be suppressed. .. Accordingly, the position of the support member can be fixed with respect to the frame.

According to at least some embodiments of the present invention, in the above-mentioned configuration, the inclined portion has a first attachment hole (35) capable of attaching a clip holding a linear member on an extension line of the first rib. Characterize.

According to this configuration, the deformation of the first mounting hole is suppressed by the first rib, so that the clip can be prevented from falling off.

According to at least some embodiments of the present invention, in any one of the above-described configurations having a first rib, the first reinforcing portion includes a plurality of the first ribs, and a plurality of third ribs that intersect the first ribs. It is characterized by including ribs (40).

According to this configuration, the rigidity of the inclined portion can be further improved and the deformation of the inclined portion can be suppressed. Accordingly, the position of the support member can be fixed with respect to the frame.

In at least some embodiments of the present invention, in any of the above-described configurations in which a cover member is supported by a side member, the cover member projects from a back surface of a side wall that abuts the inclined portion, and the side member is provided at a tip thereof. The side member has a second mounting hole (14a) in which the clip can be mounted in the vicinity of the tip of the boss.

According to this configuration, since the deformation of the cover member is suppressed by the boss, the support member that contacts the cover member is constant, and a space for accommodating another member such as the linear member gripped by the clip is secured. The cover member is prevented from colliding with the other member and dropping the other member.

At least some embodiments of the present invention are characterized in that, in the above-mentioned configuration, a lower end of the cover member is in contact with a rail cover in a vertical range in which the inclined portion is in contact with the cover member. To do.

According to this configuration, the deformation of the cover member is suppressed by the rail cover, so that the support member that contacts the cover member is constant.

At least some embodiments of the present invention are characterized in that, in any of the above-mentioned configurations in which the cover member is supported by the side member, the side member is arranged on an extension surface of the surface of the inclined portion.

According to this configuration, mounting rigidity is improved.

At least some embodiments of the present invention are characterized in that, in any of the above configurations, the inclined portion is formed of a resin in which a metal wire (24) is insert-molded.

According to this configuration, the rigidity of the inclined portion can be further improved and the deformation of the inclined portion can be suppressed. Accordingly, the position of the support member can be fixed with respect to the frame.

According to the present invention, the support member has the inclined portion that comes into contact with the cover member, and since the inclined portion is reinforced by the first reinforcing portion, the work of assembling the supporting member to the frame becomes easy, and after the assembling, The support member is less likely to be displaced left and right with respect to the frame, and the position of the support member can be fixed with respect to the frame.

In at least some embodiments of the present invention, in the above configuration, the cover member is configured to be supported by the side member, so that the cover member is stabilized by being supported by the side member. Be constant.

According to at least some embodiments of the present invention, in the above-mentioned configuration, by providing the cover member with the second reinforcing portion, the rigidity of the cover member is improved, and the deformation of the cover member is suppressed. The position of the support member can be fixed.

According to at least some embodiments of the present invention, in the above-described configuration, the first rib of the first reinforcing portion and the second rib (64) of the second reinforcing portion are arranged on a common straight line, thereby supporting the support member. Since the portion where the rigidity is improved by the first rib and the portion where the rigidity is improved by the second rib of the cover member are arranged side by side, it is possible to suppress the deformation of the support member and the cover member, which makes The position of the support member can be fixed.

In at least some embodiments of the present invention, in the above-mentioned configuration, the first mounting portion of the inclined portion is arranged on the extension line of the first rib, so that the first rib suppresses the deformation of the first mounting hole. Therefore, the clip can be prevented from falling off.

According to at least some embodiments of the present invention, in the above-described configuration, by providing a plurality of third ribs that intersect the plurality of first ribs, the rigidity of the inclined portion is further improved and the deformation of the inclined portion is suppressed. As a result, the position of the support member can be fixed with respect to the frame.

According to at least some embodiments of the present invention, in the above-mentioned configuration, the cover member has a boss that abuts the side member, and the side member has a second mounting hole for mounting a clip near the tip of the boss. The support member that contacts the cover member is fixed, and other members gripped by the clip are prevented from falling.

In at least some embodiments of the present invention, in the above configuration, the lower end of the cover member is in contact with the rail cover, so that the deformation of the cover member is suppressed, and the support member that contacts the cover member is constant.

In at least some embodiments of the present invention, in any of the above configurations, the side member is arranged on the extension surface of the surface of the inclined portion, whereby the mounting rigidity is improved.

At least some embodiments of the present invention, in the above configuration, the inclined portion has a metal wire, thereby further improving the rigidity of the inclined portion and suppressing the deformation of the inclined portion. The position of the support member can be fixed with respect to the frame.

Side view of the seat according to the embodiment A perspective view of a frame and a supporting member according to an embodiment. A longitudinal cross-sectional view as seen from the back surface that passes through the inclined portion and the tubular portion around the cover member according to the embodiment (illustration of the pad is omitted) Enlarged plan view of the support member side portion and the side frame according to the embodiment. The figure which shows the engagement of the skin material with respect to the support member which concerns on embodiment (A: top view, B: cross-sectional view, C: cross-sectional view concerning a modification). Enlarged perspective view of the inclined portion according to the embodiment (illustration of the cover member is omitted) Rear view of the periphery of the inclined portion according to the embodiment The right rear perspective view of the frame and the support member according to the embodiment. FIG. 3 is a vertical cross-sectional view including a pad as seen from the front of the inclined portion and the cover member according to the embodiment. Rear view of the pad in the seat back according to the embodiment The perspective view which looked at the side frame of the seat back concerning an embodiment from the front inside.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The front-rear, left-right and up-down directions follow the front-rear, left-right and up-down directions of the vehicle.

As shown in FIG. 1, the seat 1 is used as a driver's seat or a passenger seat of a vehicle, and has a seat cushion 2, a seat back 3, and a headrest 4. The seat cushion 2 is supported by a pair of left and right slide rails 6 and 6 fixed to a floor 5 of a vehicle cabin so as to be slidable back and forth. The sheet 1 also has a flexible pad 9 made of urethane foam or the like, which is arranged on the frame 7 and the support member 8 (see FIG. 2), and a skin material 10 that covers the pad 9. The slide rail 6 includes a lower rail 11 coupled to the floor 5, an upper rail 12 supported by the lower rail 11 so as to be slidable back and forth, and a rail cover 13 (see FIG. 3) that covers at least a part of the upper rail 12. ..

As shown in FIG. 2, the seat cushion 2 is supported by the frame 7 and the frame 7 so as to be positioned inside the frame 7, and the seat cushion 2 is seated via a skin material 10 and a pad 9 (see FIG. 1 ). The supporting member 8 elastically supports the load of one passenger.

The frame 7 includes a pair of left and right side members 14, 14, a front cross member 15 that connects the front end portions of the pair of left and right side members 14 and 14 to each other, and a rear end portion of the pair of left and right side members 14 and 14 to each other. It has a rear cross member 16 to be connected, and a pan frame 17 which is connected to the front end portions of the pair of left and right side members 14 and whose left and right intermediate portions are located in front of the front cross member 15. The pair of left and right side members 14 and 14 are long members made of sheet metal and long in the front and back, and flanges are formed on the upper and lower sides. The front cross member 15 and the rear cross member 16 are metal pipes extending in the left-right direction. The pan frame 17 is made of sheet metal and has a surface generally along the front portion of the seat surface. As shown in FIG. 4, a position sensor 19 that detects the front-rear position of the seat 1 with respect to the floor 5 is attached to the right side member 14.

As shown in FIG. 2, the support member 8 includes a plate-shaped main body 20 that extends substantially parallel to the frame 7, and a slope that extends outward from the left and right side edges of the rear portion of the main body 20 by tilting to the front side. The portion 21, the front attachment portion 22 that extends forward from the front edge of the main body 20 and engages with the front cross member 15, and the rear attachment member 22 that extends obliquely upward and rearward from the rear edge of the main body 20. And a rear mounting portion 23 for mating. The support member 8 is formed of a resin in which the metal wire 24 is insert-molded, bends under the load of the occupant, and elastically supports the occupant.

A sensor mounting portion 26 on which the pressure sensor 25 is mounted is formed on the front side of the central portion of the front portion of the main body 20 in the left-right direction. The pressure sensor 25 detects the pressure applied to the seat cushion 2 in order to determine whether the occupant is seated on the seat 1. At the rear portion of the main body 20, the load of the occupant is dispersed by the inclined portion 21, so that the pressure applied when sitting is reduced. Therefore, the pressure sensor 25 is arranged at a position offset forward with respect to the inclined portion 21 so as not to be affected by the pressure distribution by the inclined portion 21. Therefore, the accuracy of the seating determination by the seating determining means (not shown) such as the ECU that receives the signal from the pressure sensor 25 is improved.

The seat 1 (see FIG. 1) employs an air ventilation system that sucks or blows air to the surface of the seat 1 to adjust the humidity. , A pair of air openings 27, 27 that are vertically penetrated to form air passages. Each air opening 27 has a rectangular shape in a plan view. A central vertical wire 24a for reinforcement, which passes along the vertical direction, is embedded in the resin portion formed by the sensor mounting portion 26 sandwiched between the pair of air openings 27, 27.

Further, in the rear portion of the main body 20, there is a through hole that locks a plurality of hooks 28 (see FIG. 5) attached to the end portion of the skin material 10 and adjusts the bending of the support member 8. A central locking hole 29 located at the center and a pair of side locking holes 30, 30 positioned on the left and right of the central locking hole 29 are provided. The central locking hole 29 and the pair of side locking holes 30, 30 each have a rectangular shape in a plan view. The center locking hole 29 and the pair of side locking holes 30 and 30 arranged in the left-right direction have the same width in the front-rear direction, but the length in the left-right direction is larger in the center locking hole 29 than in the pair. It is longer than the side engaging holes 30, 30. Therefore, the flexibility of the central portion of the support member 8 is increased, and the sitting comfort is soft. By making the length of the central locking hole 29 and the length of the pair of side locking holes 30, 30 different from each other in this way, the bending of the support member 8 is set so as to improve the seating feeling. Further, the strength of the periphery of the central locking hole 29 is reinforced by the central vertical wire 24a vertically cutting the center of the central locking hole 29 in the left-right direction. As shown in FIG. 5A, the hook 28 that is locked in the central locking hole 29 has a slot 31 that receives the central vertical wire 24 a, so that the hook 28 engages with the central locking hole 29. Becomes stronger. Further, since the slot 28 is provided, the hook 28 locked in the central locking hole 29 has a different shape and a wider width than the hook 28 locked in the side locking hole 30. By changing the shape and size of the hook 28 according to the shape and size of the locking hole to be locked in this manner, it is possible to prevent the worker from assembling the hook 28 into the wrong locking hole. Since the central locking hole 29 and the pair of side locking holes 30, 30 are separated from the rear mounting portion 23, workability is good. Since the skin material 10 can be locked to the support member 8, there is no need to provide a projecting piece or the like for forming the locking portion on the frame 7, and the frame 7 can be made smaller and lighter.

As shown in FIGS. 2 and 5, at the rear edge of the central locking hole 29 and the pair of side locking holes 30, 30 on the front side of the main body 20, there is a hook recess 32 recessed toward the back side. It is provided. The hook 28 passes through the corresponding central locking hole 29 or side locking hole 30 from the back side to the front side, and the tip of the hook 28 is received in the hook recess 32. By receiving the tip of the hook 28 in the hook recess 32, the hook 28 can be positioned with respect to the central locking hole 29 and the side locking hole 30. Instead of the hook recess 32, as shown in FIG. 5C, a hook edge wall 33 projecting to the front side is provided at the front rear edge of the central locking hole 29 so that the hook 28 has a hook. The tip may be locked (the same applies to the front edge of the side locking hole 30). By engaging the tip of the hook 28 with the hook edge wall 33, the hook 28 is prevented from coming off from the central locking hole 29 and the side locking hole 30. Further, since the central locking hole 29 and the side locking hole 30 are provided at a position aligned with the pair of left and right inclined parts 21, 21 of the main body 20, that is, at a position where the rigidity is relatively high, the central locking hole It is possible to suppress the deformation of the side locking holes 29 and the side locking holes 30 and prevent the hooks 28 from coming off from the central locking holes 29 and the side locking holes 30.

As shown in FIGS. 2, 3, and 6 to 8, the inclined portion 21 is formed with a tubular portion 34 that protrudes downward (backward in the direction perpendicular to the main body 20). The mounting hole 35 formed in the inner space of the cylinder of the cylindrical portion 34 allows a clip 37 for mounting another member such as a wire harness or a linear member 36 such as a cable to the support member 8 to be inserted therethrough. The linear member 36 is arranged so as to come into contact with the rear reinforcing portion 42 and the back surface of the inclined portion 21 in order to make it difficult to deform. Further, in order to improve workability, the linear member 36 is arranged so as to be displaced from the central locking hole 29 and the pair of side locking holes 30, 30. Further, it is preferable that the linear member 36 extends in the front-rear direction or is arranged so as to approach the inner side in the lateral direction from the mounting hole 35. A shoulder surface 38 is formed on the inner peripheral surface of the tubular portion 34 to increase the rigidity of the tubular portion 34 and to lock the tip of the clip 37. For example, the tubular portion 34 includes a bottom wall 34a having a through hole through which the clip 37 is inserted and having a rectangular shape in a plan view, and a side wall 34b standing upward from a side portion of the bottom wall 34a. .. The upper surface of the bottom wall 34a constitutes the shoulder surface 38. Since the lower end of the tubular portion 34 is located substantially on the same plane as the back surface of the main body 20 and the extending direction of the mounting hole 35 is perpendicular to the main body 20, the clip 37 is attached to the inclined portion 21 from the back surface side. The work can be performed in the same manner as the mounting work for the main body 20. That is, the workability of attaching the clip 37 to the tubular portion 34 is improved as compared with the case where the clip 37 is attached while being inclined. Further, by having the shoulder surface 38, the tip of the clip 37 does not project from the surface of the inclined portion 21, and it is possible to prevent the clip 37 from affecting the seating feeling. Although not shown, the positions of the central locking hole 29 and the pair of side locking holes 30, 30 in the front-rear direction are deviated from the hanging position of the skin material 10 provided on the pad 9. Further, when the skin material 10 is fixed to the side member 14, the fixing position is displaced forward and backward with respect to the inclined portion 21. A plurality of mounting holes 35 may be provided in each inclined portion 21 for mounting a plurality of linear members 36. In this case, the plurality of mounting holes 35 can be mounted in a plurality of linear members 36 extending in the front-rear direction or the lateral direction by shifting the positions in the left-right direction and the front-rear direction, and the mounting workability is improved. To do. A grid-like reinforcing portion 39 is provided on the back surface of the inclined portion 21. The lattice-shaped reinforcing portion 39 has a plurality of vertical ribs 40 projecting downward and extending in the front-rear direction, and a plurality of horizontal ribs 41 projecting downward and extending laterally along the inclined portion. Since the rigidity of the inclined portion 21 is improved by the lattice-shaped reinforcing portion 39, the deformation of the inclined portion 21 can be suppressed, and the position of the support member 8 with respect to the frame 7 is constant. The tubular portion 34 is disposed in the lattice-shaped reinforcing portion 39, and in order to compensate for the reduction in rigidity due to the provision of the mounting holes 35, some vertical ribs 40 and/or horizontal ribs 41 are connected to the tubular portion 34. It is preferable.

The rear edge of the inclined portion 21 is provided with a rear reinforcing portion 42 for reinforcing the inclined portion 21 and adjusting the bending of the inclined portion 21. The rear reinforcing portion 42 includes a standing wall 43 extending from the rear edge of the inclined portion 21 to the back side so as to be orthogonal to the surface of the inclined portion 21, and a bottom wall 44 extending rearward or diagonally upward rearward from the lower edge of the standing wall 43. And a plurality of reinforcing walls 45 (ribs) fixed so as to be orthogonal to the standing wall 43 and the bottom wall 44. In order to compensate for the decrease in rigidity due to the provision of the mounting hole 35, it is preferable that a part of the reinforcing wall 45 be located on the extension line of the mounting hole 35 in the vertical direction and at the same height as the mounting hole 35. .. Further, the vertical ribs 40 of the grid-like reinforcing portion 39 are connected so as to intersect the standing wall 43, and the rigidity of the inclined portion 21 can be improved with respect to the input of loads in different directions between the vertical ribs 40 and the standing wall 43. preferable.

A connecting reinforcing portion 46 for reinforcing the connection between the main body 20 and the inclined portion 21 is provided in front of the rear reinforcing portion 42. The connecting reinforcing portion 46 is provided in the connecting concave portion 47 extending in the vertical direction at the boundary between the main body 20 and the inclined portion 21 on the front side of the supporting member 8, and the main surface is provided in the connecting concave portion 47 and the main surface is orthogonal to the vertical direction. And a plurality of connecting ribs 48 formed of walls. By adjusting the length and depth of the connecting recess 47 and the number and thickness of the connecting ribs 48, the flexibility of the inclined portion 21 and the rigidity between the main body 20 and the inclined portion 21 are adjusted. The connecting recess 47 is formed laterally in the lateral direction of the mounting hole 35, and the length thereof in the front-rear direction is preferably longer than the length of the mounting hole 35 in the front-rear direction. 48 reinforces a portion where the strength is impaired by the mounting hole 35 in a wide range. The connecting rib 48 is located laterally inward of the reinforcing wall 45 of the rear reinforcing portion 42. A side vertical wire 24b is embedded in the support member 8 along the space between the main body 20 and the inclined portion 21, and the space between the main body 20 and the inclined portion 21 is reinforced. In addition, in order to increase the rigidity of the inclined portion 21, the arrangement of the wire 24 may be changed so as to surround the tubular portion 34 and the connection reinforcing portion 46. In this case, the wires 24 are preferably arranged so as to intersect the vertical ribs 40 and the horizontal ribs 41, and in order to improve rigidity, the linear member 36 may be arranged along a part of the wire 24. Preferred (not shown).

As shown in FIG. 4, side notches 49 are formed on the left and right side edges of the support member 8 between the main body 20 and the inclined portion 21 provided on the rear portion. The position of the position sensor 19 attached to the side member 14 in the front-rear direction is within the position of the side cutout 49 in the front-rear direction. By providing the side cutouts 49, the support member 8 can be made smaller and lighter, and the mounting state of the position sensor 19 can be easily confirmed. The side cutouts 49 may be provided only on the left and right side edges of the support member 8 on which the position sensors 19 are provided. In addition, except that the position sensor 19 is provided only on one of the left and right sides, the frame 7 and the support member 8 are substantially mirror-image symmetrical with respect to a central plane orthogonal to the left-right direction.

Since the inclined portion 21 is not provided in front of the side cutout 49, the side edge of the main body 20 is the side edge of the support member 8 in the front portion of the support member 8. The front side portion 50 of the main body 20 has a crank shape such that the front side is lower than the rear side in a side view, and supplements the rigidity reduced by the side cutout 49. Also, when the linear member 36 is attached to the back side of the lowered portion in the crank shape, the influence of the tip of the clip (not shown) protruding from the front side is mitigated by the raised portion in the crank shape, and the seating feeling is reduced. Is suppressed. Further, since the occupant's buttocks are supported by the rear side even when the front side is lowered, the influence of the crank shape on the support of the buttocks is small, and a reduction in seating feeling is suppressed. Further, the left and right outer adjacent portions of the pair of left and right air openings 27, 27 in the main body 20 are bent portions that are bent in a front view so as to be connected to the lower portion of the front side portion 50 of the main body 20 due to the crank shape. Have 51. The bent portion 51 extends from the vicinity of the air opening 27 to the vicinity of the front edge of the main body 20. The bent portion 51 compensates for the rigidity reduced by the pair of left and right air openings 27, 27.

As shown in FIGS. 3 and 4, in order to increase the rigidity of the left and right side edges of the support member 8, a flange 53 projecting to the front side is provided at the front side edge of the main body 20, and the side edge of the inclined portion 21 is provided. Is provided with a flange 54 projecting to the back side. When a clip (not shown) is attached to the hole 55 provided near the front side edge of the main body 20, the tip of the clip projects to the front side of the main body 20. The flange 53 projecting to the front side mitigates the influence on the seating feeling due to the projection of the tip of the clip. On the other hand, since the shoulder surface 38 is provided in the attachment hole 35 of the inclined portion 21, the tip of the clip 37 attached to the attachment hole 35 does not project to the front side of the inclined portion. Therefore, the flange 54 of the inclined portion is projected to the back side so as not to affect the seating feeling.

As shown in FIG. 2, some of the wires 24 embedded in the resin forming the support member 8 extend in the left-right direction (lateral direction), and the rigidity of the periphery of the support member is increased. .. The front transverse wire 24c is arranged in front of the pair of left and right air openings 27, 27 approximately along the front edge of the main body 20, and the pair of left and right air openings 27, 27 and the central locking hole 29, A central transverse wire 24d is arranged between the left and right pair of side engaging holes 30, 30 and is generally behind the main body 20 behind the central engaging hole 29 and the left and right pair of side engaging holes 30, 30. The rear transverse wire 24e is arranged at a position along the edge. A part of the central lateral wire 24d is arranged along the front edges of the central locking hole 29 and the pair of left and right side locking holes 30, 30. The central horizontal wires 24d may be arranged in a plurality of rows, and in this case, the central horizontal wires 24d may be configured by a part of the wires 24 arranged in an annular shape.

The front mounting portion 22 is engaged with the front cross member 15 from above and has three front mounting pieces 56 separated from each other for easy mounting. Similarly, the rear mounting portion 23 has three rear mounting pieces 57 that are engaged with the rear cross member 16 from above and are separated from each other for easy mounting. Both ends of the central vertical wire 24a and the side vertical wires 24b are embedded in the corresponding front mounting piece 56 and rear mounting piece 57, respectively, and reinforce the front mounting portion 22 and the rear mounting portion 23.

A front notch 58 is provided in a portion of the front edge of the main body 20 which is not connected to the front attachment piece 56. The width of the front cutout 58 in the left-right direction is smaller than the distance between two adjacent front attachment pieces 56, 56 connected to the front edge of the main body 20. Therefore, the contour of the space defined by the front edge of the main body 20 and the two front attachment pieces 56, 56 adjacent to each other has a convex shape in a plan view. By providing the front notch 58, a portion from the front portion of the main body 20 to the front attachment piece 56 can be largely bent, and the attachment of the front attachment piece 56 to the front cross member 15 becomes easy. .. Further, since the width of the front notch 58 is smaller than the distance between the two front mounting pieces 56 adjacent to each other, the reduction in seating feeling due to the provision of the front notch 58 is suppressed. Further, between the sensor mounting portion 26 and the central front attachment piece 56 is a connecting portion 59 in which the central vertical wire 24a is embedded. Since the air opening 27 and the front notch 58 are provided, the rigidity of the front part of the main body 20 near the center in the left-right direction is reduced, but the connection part 59 ensures the necessary rigidity. The front attachment piece 56 has a hook shape extending substantially forward from the main body 20, and the rear attachment piece 57 has a hook shape extending obliquely upward and rearward from the rear edge of the main body 20.

The front transverse wire 24c is bent because it is arranged along the front edge of the main body 20 and so as to avoid the front notch 58. The left and right ends of the front horizontal wire 24c extend forward and extend outward in the left-right direction from the bent portion 51 and along the flange 53, thereby enlarging the support member 8. The front corners of the main body 20 are reinforced without any effort.

As shown in FIGS. 2 and 3, a cover member 60 is attached to the side member 14 of the frame 7. The cover member 60 covers the inner side and the upper side in the left-right direction at the rear portion of the side member 14. The cover member 60 is made of resin. The side walls 61 forming the left and right inner sides of the cover member 60 are inclined so that the lower side faces the inner side in the left-right direction. The side edge of the inclined portion 21 contacts the surface of the side wall 61. In order to make sure contact, the side edge of the inclined portion 21 is configured to come into line contact with the surface of the side wall 61. In order to reduce the frictional force between the side edge of the inclined portion 21 and the surface of the side wall 61 to facilitate the assembly, the flat portion 62 is formed in the vicinity of the portion of the surface of the side wall 61 where the side edge of the inclined portion 21 abuts. In addition, the side edge of the inclined portion 21 is rounded in a vertical sectional view. The front end and the rear end of the side wall 61 are preferably located in front of and behind the front end and the rear end of the side edge of the inclined portion 21, respectively. In order to reduce rubbing between the inclined portion 21 and the side wall 61, the thickness of the side wall 61 is preferably thinner than the thickness of the inclined portion 21. By bringing the side edge of the inclined portion 21 into contact with the surface of the side wall 61 of the cover member 60, the supporting member 8 can be positioned in the left-right direction with respect to the frame 7, and after assembly, with respect to the frame 7. The support member 8 is hard to shift to the left and right. Since the left-side inclined portion 21 and the cover member 60 and the right-side inclined portion 21 and the cover member 60 are mirror images of each other, the work of assembling the support member 8 to the frame 7 is easy.

The side wall 61 is provided with a boss 63 that projects from the back surface and contacts the side member 14 at the tip. The side member 14 has a mounting hole 14a near the tip of the boss 63 in which a clip (not shown) holding the linear member 36 can be mounted. Even if a load is applied to the cover member 60 from the inclined portion 21, the deformation of the side wall 61 of the cover member 60 is suppressed by the boss 63, so that the linear member 36 is loaded from the side wall 61 and the linear member 36 is removed. Is suppressed. Further, since the linear member 36 is arranged so as to avoid the rear cross member 16, it is preferable to provide the side member 14 with a bracket that supports the linear member 36. The cover reinforcing portion 64 is configured by a rib that connects to the inner surface of the side wall 61 and the boss 63. The rib forming the cover reinforcing portion 64 has a main surface orthogonal to the vertical direction, and is in contact with the side member 14 at the outer end in the left-right direction. The boss 63 and the cover reinforcing portion 64 improve the rigidity of the cover member 60 and suppress the deformation of the cover member 60. Further, this allows the position of the support member 8 to be fixed with respect to the frame 7. It is preferable that a part of the lateral rib 41 of the inclined portion 21 and the rib that configures the cover reinforcing portion 64 are arranged on a common straight line. In this case, the portion of which the rigidity is improved by the lateral ribs 41 and the portion of which the rigidity is improved by the ribs forming the cover reinforcing portion 64 are arranged side by side, so that the deformation of the support member 8 and the cover member 60 can be suppressed. Further, in order to improve the rigidity, it is preferable that the vertical position (vertical coordinate) of the cylindrical portion 34 and the boss 63 match. The lateral ribs 41 of the inclined portion 21 and the ribs forming the cover reinforcing portion 64 may be changed so as not to be aligned in a straight line. In this case, the inclined portion 21 and the cover member 60 are easily bent and are seated. Feeling improves.

In the range of the front-back direction in which the inclined portion 21 is in contact with the cover member 60, the lower end of the cover member 60 is in contact with and supported by the inner side of the rail cover 13 in the left-right direction. The rail cover 13 is supported by the upper rail 12, and the side member 14 is supported by the upper rail 12 via a base member 65. Thereby, the deformation of the cover member 60 is suppressed, and the position of the support member 8 with respect to the frame 7 becomes constant. Regarding the vertical position of the cover member 60, the portion where the side edge of the inclined portion 21 abuts is between the boss 63 that abuts the side member 14 and the lower end supported by the rail cover 13. Further, the side member 14 is arranged on the extension surface of the surface of the inclined portion 21 so that the mounting rigidity is improved.

As shown in FIG. 9, the surface of the inclined portion 21 is in contact with the pad 9, and a part of the pad 9 has entered between the cover member 60 and the inclined portion 21. Therefore, the side edge of the inclined portion 21 contacts the cover member 60 via the pad. By the pad 9 that has entered between the cover member 60 and the inclined portion 21, it is possible to avoid friction between the inclined portion 21 and the cover member 60 and suppress the friction noise. The left and right side ends of the pad 9 are located on the cover member 60, that is, outside the left and right sides of the side edge of the inclined portion 21. Therefore, the lateral width of the support member 8 can be reduced. In addition, when it is desired to increase the flexure of the inclined portion 21, the side surface of the inclined portion 21 is covered with the cover member by forming the surface of the pad 9 facing the surface of the inclined portion 21 into a shape warped with respect to the inclined portion 21. The pad 9 may be separated from the cover member 60 so as not to enter between the cover member 60 and the inclined portion 21.

The pad 9 is also preferably arranged on the front attachment piece 56 (see FIG. 2) of the support member 8. In this case, since the load of the occupant is applied to the front attachment piece 56 via the pad, the engagement strength of the front attachment piece 56 engaged with the front cross member 15 (see FIG. 2) from above is increased.

As shown in FIGS. 5B and 5C, a hook receiving portion 66 that is recessed upward is formed in a portion of the pad 9 that faces the hook 28. Interference between the pad 9 and the hook 28 can be avoided by the hook receiving portion 66, and the work of attaching the hook 28 to the central locking hole 29 and the side locking hole 30 becomes easy. In order to prevent the hook 28 from falling off, the portion of the pad 9 facing the hook 28 may be pressed against the hook 28 instead of the hook receiving portion 66.

Although not shown, when the heater is provided in the seat cushion 2, the left and right side edges of the base fabric of the heater are located inside the side edges of the left and right inclined portions 21, and preferably the left and right side portions. It is located inside the vertical wire 24b. Further, the front side of the base cloth of the heater is preferably wider than the rear side.

10 is a rear view of the pad 101 in the seat back 3 (see FIG. 1), and FIG. 11 is a perspective view of the side frame 102 of the seat back 3 as viewed from the front inside. Of the skin fixing members 103 for fixing the skin material 10 (see FIG. 1) to improve workability, the one provided on the upper end side of the skin material 10 is higher than the airbag 104 attached to the side frame 102. The attachment position 105 of the linear member 36 is preferably separated from the attachment cloth attachment position 106 of the airbag 104. When the linear member 36 is arranged on the front side of the side frame 102, it is preferable that the pad 101 is arranged between the linear member 36 and the skin fixing material 103 so that the skin fixing material 103 does not come off. In order to improve the rigidity, the skin fixing material 103 is preferably provided at a position where the side frame 102 and the lower frame (not shown) overlap each other or at a position where they are welded. When fixing the linear member 36 to the side frame 102, the mounting position 105 of the linear member 36 should be in the vicinity of the bead 107 facing the airbag 104 and at a position avoiding the module holder 108 in order to improve rigidity. Is preferred. Further, in order to improve rigidity, it is preferable that the attachment position of the airbag 104 is on an extension line of the bead 107. Further, in order to improve workability, it is preferable that the mounting position of the module holder 108 avoids the flange 109 of the side frame 102 in a side view.

The pad 101 is disposed on the back side so as to overlap the main portion 101a arranged on the front side and the upper and left and right side portions of the main portion 101a, and cooperates with the main portion 101a to form an upper frame (not shown) and a side. And an end portion 101b that wraps the frame 102. A suspension hole 110 for suspending the skin material 10 (see FIG. 1) is provided in the main portion 101a. The end portion 101b is provided with a notch 111 extending from the inner side to the outer side at the connecting portion between the upper portion and the left and right side portions. The through hole 112 provided in the side portion of the main portion 101a is provided in the same plane as the module holder 108 attached to the side frame 102. The through hole 112 is provided at a position avoiding the wire 114 that holds the support member 113.

Although the description of the specific embodiment is finished above, the present invention is not limited to the above embodiment and can be widely modified and implemented. The end portion of the skin material may be a locking portion having another structure such as a clip instead of the hook. Some of the ribs may be omitted to increase the bending of the member. A part of the linear member may be fixed to a place other than the inclined portion, for example, a highly rigid side member or the like. The configurations of the above-described embodiments and modified embodiments may be applied to a seat back or a vehicle other than a vehicle, for example, a seat of an airplane or the like.

1: Seat 2: Seat cushion 3: Seat back 7: Frame 8: Support member 13: Rail cover 14: Side member 14a: Mounting hole (second mounting hole)
20: body 21: inclined part 22: front mounting part 23: rear mounting part 24: wire 34: tubular part 35: mounting hole 36: linear member (wire harness etc.)
37: Clip 39: Lattice-shaped reinforcing portion (first reinforcing portion)
40: Vertical rib (third rib)
41: Lateral rib (first rib)
60: cover member 63: boss 64: cover reinforcing portion (second reinforcing portion, second rib)

Claims (10)

A vehicle seat having a seat cushion and a seat back,
A frame-shaped frame provided on at least one of the seat cushion and the seat back,
And a supporting member that is supported by the frame so as to be located in the frame and that supports an occupant,
The frame has a pair of left and right side members, and a cross member that connects corresponding end portions of the side members,
The left and right side members are provided with cover members that cover at least a part of the side surfaces facing each other,
The support member has a plate-shaped main body that extends substantially parallel to the frame, and an inclined portion that extends outward from the left and right side edges of the main body by inclining to the front side.
The left and right inclined portions contact the corresponding left and right cover members,
The vehicle seat, wherein a first reinforcing portion for reinforcing the rigidity of the inclined portion is provided on the back surface of the inclined portion. The vehicle seat according to claim 1, wherein the cover member is supported by the side member. The cover member is provided with a second reinforcing portion that reinforces the rigidity of the cover member, and the second reinforcing portion is a lateral extension of the first reinforcing portion along the surface of the inclined portion. The vehicle seat according to claim 2, wherein the vehicle seat is arranged on a line. The first reinforcing portion includes at least one first rib extending linearly,
The second reinforcing portion includes at least one second rib extending linearly,
The vehicle seat according to claim 3, wherein the first rib and the second rib corresponding to each other are arranged on a common straight line. The vehicle seat according to claim 4, wherein the inclined portion has a first mounting hole on an extension line of the first rib in which a clip holding a linear member can be mounted. The vehicle seat according to claim 4 or 5, wherein the first reinforcing portion includes a plurality of the first ribs and further includes a plurality of third ribs that intersect the first ribs. The cover member has a boss that projects from the back surface of the side wall that abuts the inclined portion and that abuts on the side member at the tip.
The vehicle seat according to any one of claims 2 to 6, wherein the side member has a second mounting hole for mounting a clip near the tip of the boss. The vehicle seat according to claim 7, wherein a lower end of the cover member is in contact with a rail cover in a range in the vertical direction in which the inclined portion is in contact with the cover member. .. The vehicle seat according to any one of claims 2 to 8, wherein the side member is arranged on an extension surface of a surface of the inclined portion. The vehicle seat according to any one of claims 1 to 9, wherein the inclined portion is formed of a resin in which a metal wire is insert-molded.

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