JP6276741B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat mounted on a vehicle or the like.

  An electric seat is known in which the front and rear position and vertical position of the seat cushion and the inclination angle of the seat back are changed by the power of the electric motor (for example, Patent Document 1). In the seat according to Patent Document 1, a switch unit for operating the front and rear positions of the seat cushion is attached to a shield member provided on a side portion of the seat cushion. Specifically, the switch unit is shielded by forming a recess recessed laterally on the outer surface of the shield member and inserting the switch unit into the recess or by insert molding the shield member so as to wrap the switch unit. It is connected to the member.

JP-A-11-198702

  However, since the operating body (knob) of the switch unit is disposed on the side surface of the shield member, there is a problem that it is difficult to see from the occupant seated on the seat and the operability is poor. Moreover, when it is set as the structure which fits a switch unit in the outer surface of a shield member, there exists a problem that the exposed area of a switch unit becomes large and the beauty | look is impaired. Further, when forming a recess in the shield member or insert molding the shield member so as to wrap the switch unit, the mold for forming the shield member becomes complicated, which may cause a reduction in manufacturing efficiency and an increase in cost.

  This invention makes it a subject to improve the operativity and design property of the switch unit attached to the side part of a seat cushion in the vehicle seat in view of the above background.

  In order to solve the above problems, a vehicle seat (S) according to the present invention is provided at a side portion of a seat cushion (S1), and has a side wall (2A) that extends substantially vertically and a top wall (2B) that extends substantially horizontally. And a switch unit (40) for operating electrical components provided on the cover member, and an opening (57) penetrating vertically is formed in the upper wall. The switch unit includes a switch body (51) in which a switch contact is housed, and an operation body (43, 44, which is provided on an upper surface of the switch body and switches connection of the switch contact in accordance with an operation of an occupant. 45) and a coupling portion (52) provided on the switch body and coupled to the cover member, the switch body including the side wall and the side so that the operation body is aligned with the opening. Is disposed on the inner surface of the wall, the connection part is characterized in that it is coupled to the side wall.

  According to this configuration, since the operating body of the switch unit is disposed on the upper wall facing the upper side of the cover member, it is easy for an occupant seated on the vehicle seat to operate the operating body. Moreover, since the switch unit is arrange | positioned inside a cover member, the exposure area to the exterior of a switch unit can be made small, and the designability of the vehicle seat can be improved.

  In the above invention, the inner surface of the upper wall is provided with a locking claw (58) protruding downward, and the coupling portion includes an upper plate (52A) facing the upper wall, The upper plate has a side plate (52B) facing the side wall, and a locking hole (52G) for locking the locking claw is formed in the upper plate, and the side plate is attached to the side wall by a fastening member (59). It should be fastened.

  According to this configuration, the switch unit can be attached to the cover member with good stability, and the attaching operation can be facilitated. Since the joining work by the fastening member is limited to the joining of the side wall and the side plate, the working direction of the fastening work is fixed and the workability is improved. In addition, since the switch unit is coupled to each of the side wall and the upper wall substantially orthogonal to each other, the switch unit is supported by the cover member with high stability and the rigidity of the cover member can be increased.

  Moreover, in said invention, it further has the decorating member (55) arrange | positioned in the said opening, and the said decorating member has the part (55D) clamped between the said upper wall and the said upper board. It is good to have.

  According to this configuration, the decorative member can be attached with a simple configuration.

  In the above invention, the decorative member may have a convex portion (55B, 55C) protruding downward, and the upper plate may have a receiving hole (52F) for receiving the convex portion.

  According to this structure, the position shift of the decorating member to the direction along the upper surface of an upper board is prevented.

  In the above invention, the decorative member may have a frame portion (55A) extending along the edge of the opening, and the upper end edge of the frame portion may protrude above the upper end edge of the opening. .

  According to this structure, decoration is given to the edge part of opening with a decorating member, and the designability improves.

  In the above invention, the upper end edge of the frame portion may extend outward from the upper end edge of the opening perpendicular to the opening direction of the opening.

  According to this configuration, the upper end edge of the opening is reliably hidden, and the design is improved.

  In the above invention, the coupling portion is formed by a coupling member separate from the switch body, and the upper plate has a window (52D) penetrating vertically in a portion facing the operation body, The switch body may be fastened to the lower surface of the upper plate by a fastening member.

  According to this configuration, since it is not necessary to adapt the outer shape of the switch body to the cover member, various shapes of the switch body can be used.

  In the invention described above, the switch body may be arranged to be inclined with respect to the side wall by the coupling portion so that the upper surface thereof faces upward and the side opposite to the seat cushion.

  According to this configuration, an occupant seated on the vehicle seat can easily operate the switch unit.

  In the above invention, the upper wall may be inclined with respect to the side wall so as to be lowered as the distance from the seat cushion side increases.

  According to this structure, the design property of a cover member improves. Further, the design is further improved by the upper wall and the upper surface of the switch body facing the same direction.

  According to the above configuration, in the vehicle seat, the operability and design of the switch unit attached to the side portion of the seat cushion can be improved.

The perspective view which looked at the vehicle seat from the left front A perspective view of the vehicle seat as viewed from the right rear The perspective view which looked at the frame of the vehicle seat from the front right Configuration diagram of vehicle seat system Exploded perspective view of right shield and first switch Exploded perspective view of the first switch Sectional view of the first switch (cross-sectional view of VII-VII in FIG. 6) Sectional view of the first switch (cross-sectional view of VIII-VIII in FIG. 6) Cross section of the upper part of the back cover The perspective view which looked at the upper part of a back cover from the front, omitting the 1st switch Perspective view of the upper part of the rear back cover as seen from the front XII-XII sectional view of FIG. The perspective view which looked at the upper part of a seat back from back, omitting the back back cover

  Hereinafter, an embodiment in which a vehicle seat according to the present invention is applied to a rear seat of an automobile (including the second row and the third row) will be described with reference to the drawings. In the following description, the left and right are determined based on the occupant seated on the seat S. About the same structure provided in right and left pair, a common number is attached | subjected and description is abbreviate | omitted.

(overall structure)
As shown in FIGS. 1 and 2, the seat S includes a seat cushion S1, a seat back S2, a headrest S3, an ottoman S4, and a slider S5. The slider S5 is provided so as to be slidable back and forth on the floor of the automobile via a rail extending in the front and back direction. The seat cushion S1 is provided on the slider S5 so as to be slidable left and right via a rail (not shown) extending from side to side.

  The seat back S2 includes a lower seat back S2A provided to be rotatable (tilted) with respect to the seat cushion S1, and an upper seat back S2B provided to be rotatable (tilted) with respect to the lower seat back S2A. Have. The headrest S3 is provided on the upper part of the upper seat back S2B. The rear side surface of the lower seat back S2A is covered with a plate-like back cover C. The back cover C extends above the upper edge of the lower seat back S2A and faces the rear side surface of the upper seat back S2B. The upper seat back S2B can tilt with respect to the lower seat back S2A between a position along the front side surface of the back cover C and a position away from the front side surface of the back cover C.

  A right shield 2 is mounted on the right side of the seat cushion S1, a left shield 3 is mounted on the left side, and a rear shield 4 is mounted on the rear side. Each shield 2, 3, 4 is made of, for example, a resin material. The right shield 2 extends back and forth and covers the lower portion of the right side portion of the seat cushion S1. The left shield 3 extends forward and backward to cover the left side portion of the seat cushion S1, and extends upward from the seating surface of the seat cushion S1 to form a wall portion 3A. The upper end portion of the wall portion 3A is widened to the left and right to form an upper end surface facing upward, and functions as a stand for placing armrests and accessories for supporting the left arm of the occupant. The rear shield 4 extends left and right and covers the rear side portion of the seat cushion S1. The left end portion of the rear shield 4 extends to the rear end portion of the left shield 3, and the right end portion of the rear shield 4 extends to the rear end portion of the right shield 2. In the present embodiment, the left end portion of the rear shield 4 is coupled to the rear end portion of the left shield 3.

  The seat cushion S1 includes a seat cushion frame F1, and a pad and an outer skin that are put on the seat cushion frame F1. As shown in FIG. 3, the seat cushion frame F <b> 1 includes a pair of left and right cushion side frames 10 extending in the front-rear direction, a front frame 11 spanned between the front portions of the cushion side frames 10, and the cushion side frames 10. The rear frame 12 is stretched between the rear portions, and is formed in a frame shape. A plate-like pan frame 13 is stretched between the front portions of the cushion side frames 10 and above the front frame 11. Each cushion side frame 10 is coupled to the slider S5 through a rail extending in the left and right directions so as to be slidable in the left and right directions.

  As shown in FIG. 3, the seat back S2 includes a seat back frame F2 and a movable frame F3. The seat back frame F <b> 2 includes a left back side frame 14, a right back side frame 15, and a back upper frame 16 and a back lower frame 17 that are spanned between the back side frames 14 and 15. Each of the back side frames 14 and 15 extends substantially vertically, and is coupled to the rear end portion of the cushion side frame 10 so as to be rotatable (tilted) at the lower end portion thereof. First to third reclining mechanisms that selectively hold the tilt angle of each of the back side frames 14 and 15 with respect to the cushion side frame 10 at an arbitrary angle at the connecting portion of each of the back side frames 14 and 15 and the cushion side frame 10 R1, R2, and R3 are provided. The back upper frame 16 is stretched between the upper ends of the back side frames 14 and 15 and extends to the left and right. The back lower frame 17 extends between the lower portions of the back side frames 14 and 15 and extends to the left and right.

  The movable frame F <b> 3 includes a pair of left and right movable side frames 21 and a movable upper frame 22 spanned between the movable side frames 21. Each movable side frame 21 has a lower end portion that is coupled to an intermediate portion in the longitudinal direction of the corresponding back side frame 15 on the left and right sides so as to be rotatable (tilted), and extends substantially vertically. A connecting portion between the movable side frame 21 and the left back side frame 14 is provided with a fourth reclining mechanism R4 that selectively holds the tilt angle of the movable side frame 21 with respect to the back side frame 15 at an arbitrary angle. The movable upper frame 22 extends between the upper ends of the movable side frames 21 and extends to the left and right.

  The lower seat back S2A is formed by covering the lower half of each of the back side frames 14 and 15 (the lower part from the joint with the movable side frame 21) with a pad and an outer skin. The upper seat back S2B is formed by covering the movable frame F3 with a pad and an outer skin.

  As shown in FIGS. 2, 9, and 13, the back cover C includes a rear back cover 25 and a front back cover 26. The rear back cover 25 includes a rear side wall 25A that covers the back of each of the back side frames 14, 15 and the back upper frame 16, a left side wall 25B that covers the left side of the left back side frame 14, and a right side of the right back side frame 15. 25C and a top wall 25D covering the upper portion of the back upper frame 16. The front back cover 26 has a plate shape and is arranged so as to cover the upper half of each of the back side frames 14 and 15 (the upper part from the connecting portion with the movable side frame 21) and the front of the back upper frame 16. . The edge of the front back cover 26 is coupled to the edge of the upper portion of the rear back cover 25, and a space is formed between the front back cover 26 and the rear back cover 25. The upper half of each backside frame 14, 15 and the back upper frame 16 are disposed between and covered by the front back cover 26 and the rear back cover 25.

  The seat cushion frame F1, the seat back frame F2, and the movable frame F3 are formed by bending and welding a metal member such as a metal plate or a metal pipe. Between the left and right cushion side frames 10, between the left and right back side frames 15, and between the left and right movable side frames 21, plate members, pipes, metal rods, and the like that extend from side to side are appropriately spanned to increase rigidity. Also good.

  As shown in FIG. 3, a belt guide 29 is coupled to the upper end portion of the right back side frame 15 via a belt guide bracket 28. The belt guide 29 is formed of a sheet metal member and has a guide hole penetrating in the front-rear direction. The belt guide 29 and the belt guide bracket 28 are covered with a box-shaped belt guide cover 31 coupled to the upper surface portion of the rear back cover 25. The space inside the belt guide cover 31 is connected to the internal space of the back cover C. The seat belt (not shown) extends from a retractor (not shown) disposed below the seat cushion S1 to the rear below the seat cushion S1, passes through the internal space of the back cover C, and sequentially extends upward. The belt guide 29 is pulled out from the rear to the front.

  The first to third reclining mechanisms R1 to R3 are publicly known electric reclining mechanisms, which are a first member coupled to the seat cushion S1, a second member coupled to the seat back S2, and a center. And an operating shaft provided. The first member has an internal gear, the second member has an external gear that meshes with the internal gear of the first member, and the external gear rotates while maintaining the meshing with the internal gear as the operating shaft rotates. The internal gear is set to have one or two more teeth than the external gear, and the angle of the second member relative to the first member changes as the external gear advances on the internal gear.

  As shown in FIG. 3, the operation shafts of the first to third reclining mechanisms R <b> 1 to R <b> 3 are connected to each other by a common connection shaft 33. A first driving device 35 for rotating the connecting shaft 33 is provided inside the left backside frame 14. The first drive device 35 includes an electric motor and a speed reduction mechanism that decelerates the rotational force of the electric motor and transmits it to the connecting shaft 33. The first to third reclining mechanisms R <b> 1 to R <b> 3 are simultaneously driven by the first driving device 35 via the connecting shaft 33.

  As shown in FIG. 4, the sheet S includes a second driving device 36 for displacing the slider S5 back and forth with respect to the floor. The second drive device 36 includes a rail device that extends forward and backward and supports the slider S5 with respect to the floor, and an electric motor that drives the rail device. The rail device of the second drive device 36 is, for example, provided on the lower rail coupled to the floor, the upper rail supported by the lower rail so as to move back and forth, and coupled to the slider S5, and the lower rail. It is good to have a rack and a pinion rotatably provided on the upper rail. The pinion is connected to the electric motor via a speed reduction mechanism, rotates with the power of the electric motor, and moves the upper rail with respect to the lower rail.

  Further, the seat S has a third drive device 37 for displacing the seat cushion S1 to the left and right with respect to the slider S5. The third drive device 37 extends to the left and right, and includes a rail device that supports the seat cushion S1 with respect to the slider S5, and an electric motor that drives the rail device. The rail device of the third drive device 37 is provided, for example, on the lower rail coupled to the slider S5, the upper rail supported by the lower rail so as to be laterally movable, and coupled to the seat cushion S1, and the lower rail. And a pinion rotatably provided on the upper rail. The pinion is connected to the electric motor via a speed reduction mechanism, rotates with the power of the electric motor, and moves the upper rail with respect to the lower rail.

  As described above, the seat cushion S1 can move forward and backward and left and right with respect to the floor, and can be said to be a movable part. Further, the seat back S2 can tilt with respect to the seat cushion S1, and can be said to be a movable part.

  The first to third drive units 35 to 37 are driven and controlled by an ECU 38 (electronic control unit). A first switch unit 40 and a second switch unit 41 are connected to the ECU 38. The first switch unit 40 includes a front / rear switch button 43, a left / right switch button 44, and a tilt switch button 45, which are swing type switch buttons (operating bodies). The front / rear switch button 43 outputs a signal corresponding to the forward movement and the rearward movement to the ECU 38, the left / right switch button 44 outputs a signal corresponding to the leftward movement and the rightward movement to the ECU 38, and the tilt switch button 45 is tilted forward and backward. A signal corresponding to is output to the ECU 38. The second switch unit 41 is a push button switch, and outputs a signal to the ECU 38 when operated.

  The ECU 38 controls the second drive device 36 according to the signal from the front / rear switch button 43, controls the third drive device 37 according to the signal from the left / right switch button 44, and responds to the signal from the tilt switch button 45. The first drive device 35 is controlled. Further, the ECU 38 controls at least one of the first drive device 35, the second drive device 36, and the third drive device 37 in accordance with a signal from the second switch unit 41 to place the seat S in the retracted state. . The retracted state refers to a state in which the seat S is separated from the passage in order to widen the passage from the seat disposed behind the seat S to the entrance of the automobile. For example, when the seat S is disposed on the right side of the vehicle, in the retracted state, the seat S is moved to the right side and the seat back S2 is tilted forward.

  As shown in FIGS. 2 and 5, the first switch unit 40 is provided on the right shield 2. The right shield 2 includes a side wall 2A extending substantially vertically, an upper wall 2B protruding from the upper edge of the side wall 2A toward the seat cushion S1 (left side), and a front wall protruding from the front edge of the side wall 2A toward the seat cushion S1. 2C and a rear wall 2D protruding from the rear edge of the side wall 2A toward the seat cushion S1. The rear upper edge of the side wall 2A protrudes upward in a semicircular shape, and the upper wall 2B protrudes upward along the upper edge of the side wall 2A. The front portion and the middle portion of the upper wall 2B are slightly inclined so that the distal end side is higher than the proximal end side in the protruding direction (left-right direction). In other embodiments, the front portion and the middle portion of the upper wall 2B may extend horizontally in the protruding direction.

  As shown in FIG. 5, a rear side locking piece 2 </ b> E that is locked to the rear edge of the right cushion side frame 10 is provided at the front end edge of the rear wall 2 </ b> D of the right shield 2. In addition, a cylindrical spacer 2F is provided on the rear surface of the side wall 2A so as to project leftward. The spacer 2 </ b> F contacts the right side surface of the right cushion side frame 10 at the front end thereof, and positions the right shield 2 with respect to the right cushion side frame 10. A front side locking piece 2J that is locked to the front edge of the inner cover 8 (see FIG. 1) disposed inside the right cushion side frame 10 is provided at the front end edge of the front wall 2C of the right shield 2. Yes.

  The first switch unit 40 includes a switch body 51 formed in a substantially rectangular parallelepiped, a front / rear switch button 43, a left / right switch button 44, a tilt switch button 45 provided on the switch body 51, and the switch body 51 as the right shield 2. And a coupling member 52 to be coupled. The switch body 51 has a case forming an outer shell and a switch contact accommodated in the case. On the upper surface of the switch body 51, a front / rear switch button 43, a left / right switch button 44, and a tilt switch button 45 are swingably supported. The front / rear switch button 43, the left / right switch button 44, and the tilt switch button 45 are arranged in a line at intervals in the front / rear direction. In response to the operation of the front / rear switch button 43, the left / right switch button 44, and the tilt switch button 45, the switch contact in the switch body 51 is switched between ON and OFF.

  As shown in FIGS. 6 and 7, a fastening portion 51 </ b> A that protrudes forward or rearward is provided on the front side surface and the rear side surface of the switch body 51, respectively. Each fastening portion 51 </ b> A is formed in a plate shape with its surface facing up and down, and a fastening hole 51 </ b> B penetrating in the thickness direction (up and down) is formed. On the lower surface of each fastening portion 51A, a rib 51C extending to the front side surface of the switch body 51 is formed.

  The coupling member 52 has an upper plate 52A whose surface faces up and down and extends forward and backward, and a pair of side plates 52B that extend downward from the front and rear ends of the upper plate 52A and whose surfaces face left and right. Each side plate 52B is formed with a fastening hole 52C penetrating in the thickness direction (left-right direction).

  Three windows 52D penetrating in the thickness direction (up and down) are formed in the upper plate 52A. Each window 52D is formed in a substantially quadrangular shape, and is arranged in a row at an interval in the front-rear direction. Cylindrical bosses 52E projecting downward are formed at the front and rear end portions of the lower surface of the upper plate 52A. A rib extending to the lower surface of the upper plate 52A is formed on the outer peripheral surface of the boss 52E. The upper plate 52A is provided to face the upper surface of the switch body 51, and the front / rear switch button 43, the left / right switch button 44, and the tilting switch button 45 pass through the corresponding window 52D and protrude above the upper plate 52A. To do. The front and rear bosses 52E of the upper plate 52A are arranged so as to be aligned with the fastening holes 52C of the fastening portions 51A. Each fastening portion 51A is fastened to the boss 52E by a fastening member 53 that passes through the fastening hole 51B and is coupled to the inner hole of the boss 52E. The fastening member 53 is, for example, a resin fastener, and includes a shaft portion, a head portion provided at the proximal end of the shaft portion, and an elastic claw provided at the distal end of the shaft portion. The shaft portion passes through the fastening hole 51B and enters the inner hole of the boss 52E, the elastic claw engages with the inner hole of the boss 52E, and the fastening portion 51A is sandwiched between the head and the end surface of the boss 52E. Thus, the fastening member 53 fastens the boss 52E and the fastening portion 51A.

  A decoration member 55 (decoration member) is provided on the upper surface of the upper plate 52A. The decorating member 55 is a member that decorates the upper surface of the upper plate 52A, and includes a frame portion 55A formed in a frame shape surrounding the three windows 52D, and a plurality of first protrusions projecting downward from the lower portion of the frame portion 55A. One leg 55B and a second leg 55C are provided. The frame portion 55A includes a plate-like and frame-shaped base portion 55D placed on the upper surface of the upper plate 52A, and a wall portion 55E that protrudes along the inner edge of the base portion 55D and is formed in a frame shape. As shown in FIG. 8, the upper end portion of the wall portion 55E has a bulging portion 55F that bulges outward from the wall portion 55E, that is, in a direction opposite to the inner hole formed by the frame portion 55A. The upper end portion of the wall portion 55E and the bulging portion 55F are preferably chamfered and have a smooth surface shape.

  As shown in FIGS. 6-8, the 1st leg part 55B and the 2nd leg part 55C are protrudingly provided by the lower surface of base 55D of the frame part 55A. In the present embodiment, the first leg 55B is formed in a plate shape, and the second leg 55C is shorter and wider than the first leg 55B. A first receiving hole 51F and a second receiving hole (not shown) for receiving the first leg portions 55B and the second leg portions 55C of the decorative member 55 are formed on the upper surface of the upper plate 52A. In the present embodiment, the first receiving hole 51F that receives the first leg 55B is formed as a through hole that passes through the upper plate 52A, and the second receiving hole that receives the second leg 55C is formed on the upper surface of the upper plate 52A. It is formed as a recessed bottomed hole. The first leg 55B enters the first receiving hole 51F, and the second leg 55C enters the second receiving hole, so that the coupling member 52 is along the surface of the upper plate 52A of the decorating member 55. Positioning in the direction is made.

  The decorating member 55 is preferably made of, for example, a resin material and coated. For example, the frame portion 55A of the decorating member 55 may be coated with a metallic luster. Moreover, the decorating member 55 may have flexibility.

  An opening 57 penetrating in the thickness direction is formed in the upper wall 2B of the right shield 2. The first switch unit 40 is disposed inside the right shield 2, that is, below the upper wall 2 </ b> B and to the left of the side wall 2 </ b> A, and three switch buttons 43 to 45 are disposed in the opening 57. The frame portion 55 </ b> A of the decorating member 55 is disposed along the edge of the opening 57, and the upper end portion of the wall portion 55 </ b> E projects upward from the opening 57. Further, the bulging portion 55F at the upper end portion of the wall portion 55E is disposed above the edge portion of the opening 57 and covers the edge portion of the opening 57. The base portion 55D of the frame portion 55A is sandwiched between the lower surface of the upper wall 2B and the upper surface of the upper plate 52A of the coupling member 52.

  As shown in FIG. 5, a locking claw 58 that protrudes downward is formed on the left side of the opening 57 on the lower surface of the upper wall 2B. The locking claw 58 has a flexible plate piece protruding from the lower surface of the upper wall 2B, and a claw formed at the tip of the plate piece. As shown in FIG. 6, the upper plate 52A of the coupling member 52 is formed with a locking hole 52G for locking the locking claw 58. The locking hole 52G is a through hole that penetrates the upper plate 52A in the thickness direction. As for the latching claw 58, a plate piece part penetrates the latching hole 52G, and it latches in the edge of the latching hole 52G in a nail | claw part.

  As shown in FIG. 5, a pair of cylindrical bosses 2G project from the inner surface of the side wall 2A of the right shield 2. Ribs 2H extending to the inner surface of the side wall 2A are formed on the outer peripheral surface of the boss 2G. The ribs 2H may be arranged to extend radially around the boss 2G. Each boss 2G is formed at a position where each inner hole is aligned with a fastening hole 52C formed in the side plate 52B. The boss 2G and the side plate 52B are fastened to the boss 2G by a fastening member 59 that passes through the fastening hole 52C and is coupled to the inner hole of the boss 2G. The fastening member 59 may have the same configuration as the fastening member 53 described above.

  As shown in FIGS. 11 and 12, the second switch unit 41 includes a switch body 61 formed in a substantially rectangular parallelepiped, a switch button 62 provided on the switch body 61 so as to be displaceable, and the switch body 61 as a back cover. And a coupling member 63 coupled to the inner surface of 25. The switch main body 61 has a case forming an outer shell and a switch contact housed in the case. A switch button 62 is supported on the outer surface of the switch body 61 so as to be displaceable with respect to the outer surface. The switch button 62 is a push button and reciprocates along the axis (center line) of the switch body 61. In response to the pressing operation of the switch button 62, the switch contact in the switch body 61 is switched between ON and OFF.

  The coupling member 63 includes a cylindrical receiving portion 63A that receives the switch main body 61, and a flange portion 63B that protrudes in a direction orthogonal to the axis from one end side in the direction of the axis (cylindrical center line) of the receiving portion 63A. Have. The receiving portion 63A is formed in a square tube whose both ends are open so as to receive the substantially rectangular parallelepiped switch body 61. The collar portion 63B is formed in a substantially rectangular frame shape so as to surround the receiving portion 63A around the axis of the receiving portion 63A. The switch body 61 is aligned with the axis of the receiving portion 63A so that the end of the switch body 61 on the switch button 62 side protrudes from the end of the receiving portion 63A on the side where the flange 63B is provided. The main body 61 is received and coupled to the receiving portion 63A. Further, the end portion of the switch body 61 on the side opposite to the switch button 62 side also protrudes outward from the end portion on the side opposite to the side on which the collar portion 63B of the receiving portion 63A is provided. The switch body 61 and the coupling member 63 are coupled to each other by a locking structure such as a claw and a hole.

  The coupling member 63 has a pair of fastening portions 63C provided in the receiving portion 63A and one positioning portion 63D. The pair of fastening portions 63C are each formed in a plate shape and extend in mutually opposite directions from mutually opposite side portions of the receiving portion 63A. That is, the receiving portion 63A is disposed between the pair of fastening portions 63C. Each fastening portion 63C is formed with a fastening hole 63E penetrating in the thickness direction. The positioning portion 63D is formed in a plate shape and extends outward from a side portion different from the side portion where the pair of fastening portions 63C of the flange portion 63B is provided. A positioning hole 63F penetrating in the thickness direction is formed in the positioning portion 63D. The positioning hole 63F is formed in a substantially square shape. The direction of the surface of each fastening portion 63C and the surface of the positioning portion 63D is inclined with respect to the axes of the receiving portion 63A and the switch body 61.

  The rear back cover 25 and the front back cover 26 are coupled to the back upper frame 16 by fastening members 65 and 66. As shown in FIGS. 9, 11, and 12, coupling seats 67 and 68 to which one ends of fastening members 65 and 66 are coupled to the inner surface (front surface) of the rear back cover 25 and the inner surface (rear surface) of the front back cover 26. Is formed. The coupling seats 67 and 68 have a slit that protrudes forward from the inner surface of the rear back cover 25 and opens in one of the left and right sides. The fastening members 65 and 66 are, for example, resin fasteners. The fastening members 65 and 66 are inserted into the slit from the right side, and are coupled to the coupling seats 67 and 68 so as not to move forward and backward. The engaging claw portion protrudes forward from the base portion to be coupled, and is coupled to a hole formed in the rear side surface of the back upper frame 16 in the engaging claw portion.

  As shown in FIG. 10, an opening 71 penetrating in the thickness direction is formed on the upper right side of the rear side wall 25 </ b> A of the rear back cover 25. The opening 71 is formed in a shape corresponding to the switch button 62 of the second switch unit 41. The front edge portion 71A of the opening 71 protrudes forward from the inner surface (front surface) of the rear side wall 25A, and an end surface facing forward is formed at the protruding end. The rear end edge of the opening 71 is chamfered so that the inner surface of the opening 71 and the outer surface (rear surface) of the rear side wall 25A are smoothly continuous. The opening 71 has a length larger than the thickness of the rear side wall 25A by the front edge portion 71A.

  Cylindrical bosses 72 project from the left and right sides of the opening 71 on the inner surface of the rear side wall 25A. A plurality of ribs 73 extending to the inner surface of the rear side wall 25 </ b> A are formed on the outer peripheral surface of each boss 72. The protruding length from the inner surface of the rear side wall 25 </ b> A of each rib 73 is set to be smaller than the protruding length of the boss 72. The protruding end surface 73A of each rib 73 is disposed on a common virtual plane. Each rib 73 is provided on the upper side and the lower side of the boss 72 and on the side opposite to the opening 71 side of the boss 72, and extends in the radial direction of the boss 72.

  A positioning projection 74 is provided below the opening 71 on the inner surface of the rear side wall 25A. The positioning convex portion 74 has a cross-shaped cross section. A plurality of positioning ribs 75 extending vertically are formed above the opening 71 on the inner surface of the rear side wall 25A. The positioning rib 75 extends to the inner surface of the upper wall 25D of the rear back cover 25.

  As shown in FIGS. 11 and 12, the second switch unit 41 is disposed on the inner surface side of the rear back cover 25. Specifically, the second switch unit 41 is disposed on the upper right side of the front surface of the rear side wall 25A. The second switch unit 41 is attached to the rear back cover 25 so that the flange portion 63B of the receiving portion 63A of the coupling member 63 abuts against the end surface of the front edge portion 71A of the opening 71, and the switch button 62 is disposed in the opening 71. Is done. The positioning projection 74 is fitted into the positioning hole 63F of the coupling member 63, whereby the switch unit is positioned with respect to the rear back cover 25. Specifically, each side end of the cross-shaped positioning convex portion comes into contact with each side of the rectangular positioning hole, so that the positioning convex portion 74 is non-rotatably coupled to the positioning hole 63F. Further, the upper edge of the flange portion 63B of the coupling member 63 abuts against the plurality of positioning ribs 75, so that rotation of the second switch unit 41 with respect to the rear back cover 25 around the positioning hole 63F is suppressed, and positioning is further performed. Performed with high accuracy. Each boss 72 enters the fastening hole 63E of each fastening portion 63C, and the projecting end faces 73A of the plurality of ribs 73 abut on the surface facing the rear of the fastening portion 63C. The fastening portion 63 </ b> C is fastened to the boss 72 by a fastening member 77 that is coupled to the inner hole of the boss 72. The fastening member 77 is, for example, a resin fastener, and may have the same configuration as the fastening member 53 described above. The fastening member 77 is coupled to the inner hole of the boss 72 and sandwiches the fastening portion 63 </ b> C between the protruding end surface 73 </ b> A of the rib 73.

  As shown in FIG. 13, one end of a wire harness 80 extending to the ECU 38 is connected to the front end portion of the switch body 61 of the second switch unit 41. As shown in FIGS. 9 and 13, the wire harness 80 is supported by at least one harness holding portion 81 provided on the inner surface (rear surface) of the front back cover 26. The harness holding portion 81 protrudes from the inner surface of the front back cover 26 and is formed in a hook shape that opens upward. The harness holding portion 81 has flexibility and allows the wire harness 80 to be attached and detached by elastic deformation.

  In the present embodiment, three of the harness holding portions 81 are arranged at the same height in the front back cover 26. The three harness holding portions 81 arranged at the same height are arranged below the back upper frame 16. More specifically, the dead space between the front back cover 26 and the rear back cover 25 formed below the back upper frame 16 by arranging the back upper frame 16 between the front back cover 26 and the rear back cover 25. A harness holding portion 81 is disposed on the left side. The three harness holding portions 81 are arranged at equal intervals in the central portion, the left portion, and the right portion in the left-right direction of the front back cover 26. The left and right harness holding portions 81 are disposed on the inner side (center side) of the left and right back side frames 14 and 15 in the left and right direction. The wire harness 80 is sequentially held from the second switch unit 41 to the right harness holding portion 81, the center harness holding portion 81, and the left harness holding portion 81 and extends to the left. It extends inwardly downward.

  The effect of the sheet S configured as described above will be described. In the first switch unit 40, the front / rear switch button 43, the left / right switch button 44, and the tilt switch button 45 are arranged on the upper wall 2B facing the upper side of the right shield 2. Easy to operate buttons. Moreover, since the 1st switch unit 40 is arrange | positioned inside the right shield 2, the exposure area to the exterior of the 1st switch unit 40 can be made small, and the designability of the sheet | seat S can be improved. In addition, since the first switch unit 40 is coupled to each of the side wall 2A and the upper wall 2B that are substantially orthogonal to each other, the first switch unit 40 is supported inside the right shield 2 with high stability and the rigidity of the right shield 2 is enhanced.

  Since the connecting member 52 of the first switch unit 40 has a structure in which the upper plate 52A and the upper wall 2B are locked by the locking holes 52G and the locking claws 58, the connecting work by the fastening member 59 is performed on the side wall 2A and the side plate 52B. Therefore, the work direction of the fastening work is fixed, and workability is improved.

  The decorating member 55 is fixed to the first switch unit 40 and the right shield 2 by being sandwiched between the upper plate 52A and the upper wall 2B of the coupling member 52. Moreover, since the decorating member 55 has the 1st and 2nd leg part 55B and 55C fitted to the 1st and 2nd receiving hole 51F formed in 52 A of upper boards, 52 A of upper boards with respect to 52 A of upper boards. The movement in the direction along the surface of is restricted.

  The decorating member 55 has a frame portion 55A extending along the edge of the opening 57, and the upper end edge of the frame portion 55A protrudes above the upper end edge of the opening 57, so that the edge portion of the opening 57 is decorated. The design is improved. Moreover, since the edge part of the opening 57 is covered and covered with the bulging part 55F provided in the upper end edge of the frame part 55A, the designability is improved.

  In the first switch unit 40, since the switch body 51 is coupled to the right shield 2 via the coupling member 52, there is no need to adapt the outer shape of the switch body 51 to the right shield 2, and various shapes of the switch body 51 are provided. Can be used.

  The switch body 51 of the first switch unit 40 is arranged so that the upper surface thereof faces upward and to the right. Therefore, it becomes easy for the passenger seated on the seat S to operate the switch unit.

  Moreover, since the upper wall 2B is inclined with respect to the side wall 2A so as to be lowered as the distance from the seat cushion S1 side increases, the design of the right shield 2 is improved. Further, the design is further improved by the upper wall 2B and the upper surface of the switch body 51 being directed in the same direction.

  Although the description of the specific embodiment is finished as described above, the present invention is not limited to the above embodiment and can be widely modified. For example, the decoration member 55 may be omitted in other embodiments. Even when the decorating member 55 is provided, the first and second leg portions 55B and 55C may be omitted as appropriate. Further, the coupling member 52 may be formed integrally with a case that forms the outer shell of the switch body 51.

  Although the example which applied this invention to the vehicle seat S was demonstrated in the said embodiment, the sheet | seat S which concerns on this invention can also be applied to various sheet | seats S for airplanes, railroads, etc. In addition, all the constituent elements of the sheet SS shown in the above-described embodiment are not necessarily essential, and can be appropriately selected.

2: right shield 2A: side wall 2B: upper wall 2G: boss 10: cushion side frames 14, 15: back side frame 21: movable side frame 25: rear back cover 26: front back cover 40: first switch unit 41: first 2 switch unit 43: front / rear switch button 44: left / right switch button 45: tilt switch button 51: switch body 52: coupling member 52A: upper plate 52B: side plate 52D: window 52F: first receiving hole 52G: locking hole 55: additional Decoration member 55A: Frame portion 55D: Base portion 57: Opening 58: Locking claw 61: Switch body 62: Switch button 63A: Receiving portion 63C: Fastening portion 63D: Positioning portion 71: Opening 72: Boss 73: Rib 73A: Projection end surface 74: Positioning convex part 80: Wire harness 81: Harness maintenance Part C: Back Cover F1: seat cushion frame F2: the seat back frame F3: movable frame S: seat S1: the seat cushion S2: seat back

Claims (8)

A vehicle seat,
Provided on the side of the seat cushion, have a side wall and a substantially horizontal extending upper wall extending substantially vertically, a cover member opening therethrough vertically in the top wall is formed,
A switch unit for operating an electrical component provided in the cover member;
A decorative member disposed in the opening;
Wherein the switch unit includes a switch body that houses a switch contact therein, provided on the upper surface of the switch body, and operating body for switching the connection of the switch contacts in response to an occupant of the operation, provided in the switch body, wherein An upper plate facing the upper wall, and a coupling portion having a side plate facing the side wall ,
The switch body is disposed on the inner surface side of the side wall and the upper wall so that the operating body is aligned with the opening, and is coupled to the side wall in the side plate ,
The decorative member includes a frame-shaped base portion sandwiched between a lower surface of the upper wall and an upper surface of the upper plate, and a wall portion protruding upward from the base portion and disposed along the edge of the opening. A vehicle seat characterized by comprising a vehicle seat. The vehicle seat according to claim 1, wherein the wall portion passes through the opening, and an upper end edge of the wall portion protrudes above an upper end edge of the opening . 3. The vehicle seat according to claim 2, wherein an upper end edge of the wall portion extends outward from an upper end edge of the opening perpendicular to the opening direction of the opening. The decorative member has a convex portion protruding downward from the base portion,
  The vehicle seat according to claim 3, wherein the upper plate has a receiving hole for receiving the convex portion. A locking claw that protrudes downward is provided on the inner surface of the upper wall ,
The upper plate is formed with a locking hole for locking the locking claw,
The vehicle seat according to any one of claims 1 to 4, wherein the side plate is fastened to the side wall by a fastening member. The coupling part is formed by a coupling member separate from the switch body,
The upper plate has a window penetrating vertically in a portion facing the operation body,
The vehicle seat according to any one of claims 2 to 5 , wherein the switch body is fastened to a lower surface of the upper plate by a fastening member. Said switch body claims 1 to 6 the upper surface so as to face the side opposite upwardly and the seat cushion, characterized in that it is disposed inclined with respect to said side walls by said coupling portion The vehicle seat according to any one of the above items. The vehicle seat according to any one of claims 1 to 7 , wherein the upper wall is inclined with respect to the side wall so as to descend as the distance from the seat cushion side increases.

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