JP2018016114A - Vehicular seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a vehicular seat configured to comprise a center seat headrest divided into left and right parts, which can be easily applied for a vehicle whose vehicle width is narrow and a vehicle in which a seat width for a central sitter is narrow.SOLUTION: In a rear seat 10, a center headrest 16 is divided into a left divided part 16L and a right divided part 16R. In the left divided part 16L, one end side 50A of a stay 50 is extended below the seat from a pad part 48 to be connected to a left side seat back 12L, while the other end side 50B of the stay 50 is extended from the pad part 48 to a left side of the seat to be connected to a left seat headrest 14L. In the right divided part 16R, the one end side 50A of the stay 50 is extended below the seat from the pad part 48 to be connected to a right side seat back 12R, while the other end side 50B of the stay 50 is extended from the pad part 48 to a right side of the seat to be connected to a right seat headrest 14R.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle seat.

  Patent Document 1 below includes a left seat and a right seat divided into left and right, and at least one seat slides left and right or in the front-rear direction to form a walk-through space between the separated seats. Is described. The rear seat is configured so that a total of three people can sit on the center of the left seat and the right seat. A headrest for the left seated person and a headrest for the right seated person are respectively supported on the upper part of the seat back of the left seat and the right seat. Further, the headrest for the central seater (center seat headrest) that sits across the center of the left seat and the right seat is a split headrest that is divided into right and left.

  The left and right divided headrests are attached with poles bent in a substantially inverted U shape when viewed from the front side of the seat. This pole has a pair of left and right legs arranged in the left-right direction of the seat. In addition, a pair of left and right pole guides fixed to the upper part of the back frame are provided inside the right shoulder at the upper part of the seat back of the left seat and inside the left shoulder of the upper part of the seat back of the right seat. Yes. These pole guides are configured to support the left and right leg portions of the pole so as to be movable up and down.

Japanese Patent No. 5706143

  By the way, when the rear seat having the above configuration is applied to a vehicle having a narrow vehicle width or a vehicle having a narrow seat width for a central seated person, the distance between the headrest for the left seated person and the headrest for the right seated person becomes narrower. Space for the central seat headrest is reduced. For this reason, measures such as reducing the lateral width dimension (dimension in the vehicle width direction) of the center seat headrest are required. However, in the central seat headrest having the above configuration, the upper part of the pole (stay) bent in a substantially inverted U shape when viewed from the front side of the seat is embedded in the left and right divided headrests, respectively, so that the width dimension and the like are designed. There are restrictions. For this reason, it may be difficult to provide a central seat headrest divided into left and right.

  In consideration of the above facts, the present invention provides a vehicle seat that can be easily applied to a vehicle having a narrow vehicle width or a vehicle having a narrow seat width for a central occupant in a configuration including a central seat headrest divided into left and right sides. The purpose is to obtain.

  A vehicle seat according to a first aspect of the present invention includes a left seat back and a right seat back that are provided adjacent to each other in the left-right direction of the seat and are capable of tilting independently of each other about an axis along the left-right direction of the seat. A left-seat headrest and a right-seat headrest connected to upper end portions of the left-side seatback and the right-side seatback, respectively, and the left-side seatback. The left divided portion disposed at the upper end portion of the right seat back and the right divided portion disposed at the upper end portion of the right seat back are divided into the pad portion and the pad respectively. A central seat headrest having a stay with an intermediate portion embedded in the portion, and the left split portion is configured such that one end side of the stay is seated from the pad portion to the seat. The other end side of the stay extends from the pad portion to the left side of the seat and is connected to the left seat headrest, and extends to the left side. The one end side of the stay extends from the pad portion to the seat lower side and is connected to the right seat back so as to be movable up and down, while the other end side of the stay extends from the pad portion to the seat right side and the right seat headrest It is connected to.

  In the vehicle seat according to the first aspect, the left seat headrest and the right seat headrest are respectively connected to the upper end portions of the left seatback and the right seatback that are provided adjacent to each other in the left-right direction of the seat. A central seat headrest is provided between the left seat headrest and the right seat headrest. The central seat headrest is divided into a left divided portion disposed at the upper end portion of the left seat back and a right divided portion disposed at the upper end portion of the right seat back, and the left divided portion and the right divided portion. Each has a pad portion and a stay having an intermediate portion embedded in the pad portion.

  The left split part of the center seat headrest is connected to the left seat back so that one end side of the stay extends from the pad part to the lower side of the seat, while the other end side of the stay extends from the pad part to the left side of the seat. It is connected to the seat headrest. Further, the right split portion of the center seat headrest has one end side of the stay extending from the pad portion to the seat lower side and connected to the right seat back so that it can be raised and lowered, while the other end side of the stay extends from the pad portion to the seat right side. Connected to the right seat headrest. Thus, one end side of the stay extends from the pad portion to the seat lower side, while the other end side of the stay extends from the pad portion to the left side or the right side of the seat. Compared to a configuration in which the upper portion of the stay bent in a letter shape is embedded in the pad portion, the degree of freedom in design such as the lateral width dimension (dimension in the sheet lateral direction) of the pad portion is improved. This facilitates application to a vehicle having a narrow vehicle width and a vehicle having a narrow seat width for a central occupant.

  A vehicle seat according to a second aspect of the present invention is the vehicle seat according to the first aspect, wherein the left seat headrest and the right seat headrest are stays connected to the left seat back or the right seat back. And a pad portion attached to the stay and a headrest support attached to the stay, and the other end side of the stay of the left split portion is inserted into the headrest support of the left seat headrest The other end side of the stay of the right split portion is inserted into the headrest support of the right seat headrest.

  In the vehicle seat according to the second aspect, the pad portion and the headrest support are attached to the stays of the left seat headrest and the right seat headrest. The other end of the stay in the left split part of the center seat headrest is inserted into the headrest support of the left seat headrest, and the other end of the stay in the right split part of the center seat headrest is inserted into the headrest support of the right seat headrest. It is. Since it is configured in this way, the other end side of the stay in the left division part of the central seat headrest and the other end side of the stay in the right division part of the central seat headrest are left using a known (existing) headrest support. It can be connected to the seat headrest and the right seat headrest.

  A vehicle seat according to a third aspect of the present invention is the vehicle seat according to the first or second aspect, wherein each stay of the left split portion and the right split portion is formed in an L shape. ing.

  In the vehicle seat according to the third aspect, since the stays of the left split portion and the right split portion of the center seat headrest are formed in the simple shape as described above, the manufacture of each stay is facilitated.

  A vehicle seat according to a fourth aspect of the present invention includes a left seat back and a right seat back that are provided adjacent to each other in the left-right direction of the seat and are capable of tilting independently of each other about an axis along the left-right direction of the seat. A left-seat headrest and a right-seat headrest connected to upper end portions of the left-side seatback and the right-side seatback, respectively, and the left-side seatback. The left divided portion disposed at the upper end portion of the right seat back and the right divided portion disposed at the upper end portion of the right seat back are divided into the pad portion and the pad respectively. A central seat headrest having a stay with an intermediate portion embedded in the portion, and the left split portion is configured such that one end side of the stay is seated from the pad portion to the seat. The other end of the stay extends from the pad portion to the left side of the seat and bends to the lower side of the seat so that it can be raised and lowered to the left seat back. The right split portion is connected to the right seat back so that one end side of the stay extends from the pad portion to the seat lower side so as to be able to move up and down, while the other end side of the stay extends from the pad portion to the seat. It extends to the right side, bends to the lower side of the seat, and is connected to the right seat back so that it can be raised and lowered.

  In the vehicle seat according to the fourth aspect, the left seat headrest and the right seat headrest are connected to the upper end portions of the left seatback and the right seatback that are provided adjacent to each other in the left-right direction of the seat so as to be movable up and down. A central seat headrest is provided between the left seat headrest and the right seat headrest. The central seat headrest is divided into a left divided portion disposed at the upper end portion of the left seat back and a right divided portion disposed at the upper end portion of the right seat back, and the left divided portion and the right divided portion. Each has a pad portion and a stay having an intermediate portion embedded in the pad portion.

  The left split part of the center seat headrest is connected to the left seat back so that one end of the stay extends from the pad part to the lower side of the seat, while the other end of the stay extends from the pad part to the left side of the seat. It is bent downward and connected to the left seat back so that it can be raised and lowered. The right split portion of the center seat headrest has one end of the stay extending from the pad portion to the seat lower side and connected to the right seat back so as to be movable up and down, while the other end of the stay extends from the pad portion to the seat right side. At the same time, it is bent to the lower side of the seat and is connected to the right seat back so that it can be raised and lowered. Thus, one end side of the stay extends from the pad portion to the seat lower side, while the other end side of the stay extends from the pad portion to the left side or the right side of the seat. Compared to a configuration in which the upper portion of the stay bent in a letter shape is embedded in the pad portion, the degree of freedom in design such as the lateral width dimension (dimension in the sheet lateral direction) of the pad portion is improved. This facilitates application to a vehicle having a narrow vehicle width and a vehicle having a narrow seat width for a central occupant.

  A vehicle seat according to a fifth aspect of the present invention is the vehicle seat according to any one of the first to fourth aspects, wherein the left seat back and the right seat back are a pair of left and right side frames. A frame body having a portion, and an extension bracket that is fixed to the frame body at an upper end side of the side frame portion on the center side in the left-right direction of the seat and extends to the center side in the left-right direction of the seat from the side frame portion on the center side of the seat left-right direction. A headrest support attached to the extension bracket, and the one end side of the stay of the left split portion is inserted into the headrest support of the left seat back, and the stay of the right split portion The one end side is inserted into the headrest support of the right seat back.

  In the vehicle seat according to claim 5, in the left seat back and the right seat back, the extension bracket fixed to the frame main body on the upper end side of the side frame portion on the center side in the left-right direction of the seat is a side on the center side in the left-right direction of the seat. It extends to the center side in the left-right direction of the seat from the frame portion. And the headrest support in which each one end side in the stay of the left division part of the center seat headrest and the right division part was inserted so that extraction was possible was attached to the above-mentioned extension bracket. With this configuration, it is possible to widen the distance between the side frame portion at the center in the left-right direction of the left seat back and the side frame portion at the center in the left-right direction of the right seat back. Thereby, in the left seat back and the right seat back, it becomes easy to ensure cushioning properties in a region where a center seated person using the center seat headrest can lean.

  As described above, the vehicle seat according to the present invention is applied to a vehicle having a narrow vehicle width or a vehicle having a narrow seat width for a central seated person in a configuration including a central seat headrest divided into left and right. Becomes easier.

It is a front view which shows the partial structure of the vehicle seat which concerns on 1st Embodiment of this invention. It is the rear view which looked at the composition shown by Drawing 1 from the sheet back side. It is the top view which looked at the composition shown by Drawing 1 from the sheet upper side. It is the perspective view which looked at the composition shown by Drawing 1 from the sheet front diagonal left side. FIG. 3 is a perspective view of the configuration shown in FIG. 2 as viewed from the diagonally left rear side of the seat. FIG. 2 is a front view corresponding to FIG. 1 showing a state in which a left seat headrest, a right seat headrest, and a center seat headrest are raised from the position shown in FIG. 1. It is a front view corresponding to FIG. 1 which shows the partial structure of the vehicle seat which concerns on 2nd Embodiment of this invention.

<First Embodiment>
Hereinafter, the rear seat 10 as the vehicle seat according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6. In addition, arrow FR, arrow LH, and arrow UP which are appropriately shown in each figure respectively indicate the front direction, left direction, and upward direction of the rear seat 10. In the present embodiment, the front / rear / left / right / up / down directions of the rear seat 10 coincide with the front / rear, left / right / up / down directions of the vehicle (automobile) on which the rear seat 10 is mounted. Hereinafter, when the description will be made simply using the front / rear, left / right, and up / down directions, the front / rear direction of the seat, the left / right direction of the seat left / right direction (sheet width direction), and the up / down direction of the seat are shown.

(Constitution)
The rear seat 10 according to the present embodiment is, for example, a second or third row seat of a small automobile, and is a three-seater seat. As shown in FIGS. 1 to 6, the rear seat 10 includes a left seat back 12L and a right seat back 12R. The left seat back 12L and the right seat back 12R are provided adjacent to each other in the seat lateral direction (vehicle width direction) on the rear end side of the seat cushion (not shown), and are independent from each other around an axis along the seat lateral direction. Can be tilted. In the present embodiment, the dimensional ratio of the left seat back 12L and the right seat back 12R in the vehicle width direction is set to 50:50, for example.

  The rear seat 10 is disposed between the left seat headrest 14L and the right seat headrest 14R, which are connected to the upper end portions of the left seatback 12L and the right seatback 12R, respectively, and the left seat headrest 14L and the right seat headrest 14R. A center headrest 16 provided. The center headrest 16 corresponds to a “center seat headrest” according to the present invention. The center headrest 16 is divided into a left divided portion 16L disposed at the upper end portion of the left seat back 12L and a right divided portion 16R disposed at the upper end portion of the right seat back 12R. Hereafter, each said component is demonstrated in detail.

  The left seat back 12L and the right seat back 12R include a left seat back frame 18L and a right seat back frame 18R, which are skeleton members. The left seat back frame 18L and the right seat back frame 18R are configured to have seat back pads (both not shown) covered with a seat skin.

  The left seat back frame 18L and the right seat back frame 18R have basically the same configuration except that they are formed symmetrically, and a frame main body 20 formed in a frame shape when viewed from the front-rear direction of the seat, And a back panel 22 attached to the back of the frame body 20. The frame body 20 includes a pair of left and right side frame portions 20S extending in the height direction of the left seat back 12L or the right seat back 12R (the side frame portions outside the seat left and right direction are not shown) and the upper ends of the left and right side frame portions 20S. And a lower frame portion 20L (see FIG. 3) in which the lower end portions of the left and right side frame portions 20S are connected in the left-right direction of the seat.

  In the present embodiment, the left and right side frame portions 20S and the upper frame portion 20U are integrally formed by a metal pipe bent into a substantially inverted U shape. The lower frame portion 20L is formed in a straight line by a metal pipe, and both longitudinal ends thereof are coupled to the lower ends of the left and right side frame portions 20S by means such as welding. The left rear panel 22 is formed by press-molding a sheet metal, and is attached to the rear surface of the frame body 20 by means such as welding.

  An end of the lower end of the frame body 20 on the center side in the left-right direction of the seat is a left-right direction of the seat (vehicle width direction) with respect to a hinge bracket 24 (see FIG. 3) fixed to the center of the vehicle body floor (not shown). Are connected so as to be rotatable about an axis along the axis. Further, an end (not shown) on the outer side in the left-right direction of the seat at the lower end of the frame body 20 is in the left-right direction of the seat (vehicle width direction) with respect to a hinge bracket (not shown) fixed to the outer end of the vehicle body floor in the vehicle width direction. Are connected so as to be rotatable about an axis along the axis. Accordingly, the left seat back frame 18L and the right seat back frame 18R are supported so as to be tiltable about an axis along the vehicle width direction with respect to the vehicle body.

  Further, a known reclining mechanism (not shown) is disposed between the frame body 20 and each of the hinge brackets. Further, lock release levers 26 are provided at the outer ends in the left-right direction of the seats at the upper ends of the left seat back frame 18L and the right seat back frame 18R, respectively. By operating these lock release levers 26, the reclining mechanism is unlocked, and the left seat back frame 18L and the right seat back frame 18R are allowed to tilt.

  A pair of left and right support brackets 28 are fixed to the central portion of the upper frame portion 20U of the frame body 20 in the left-right direction of the seat. The pair of left and right support brackets 28 are formed in a long rectangular tube shape from metal, for example. The left and right support brackets 28 fixed to the upper frame portion 20U of the left seat back 12L are arranged with the height direction of the left seat back 12L as the longitudinal direction. The left and right support brackets 28 fixed to the upper frame portion 20U of the right seat back 12R are arranged with the height direction of the right seat back 12R as the longitudinal direction.

  Each of the support brackets 28 is equipped with known headrest supports 30L and 30R. The left and right headrest supports 30 </ b> L and 30 </ b> R are formed in a long, substantially rectangular tube shape with resin, and are inserted coaxially into the left and right support brackets 28. The flange portions (reference numerals omitted) provided at the upper end portions of the headrest supports 30L and 30R engage with the upper end portions of the respective support brackets 28, and elastic claws (reference symbols) provided at the lower end portions of the headrest supports 30L and 30R. Is omitted) is engaged with the lower end of each support bracket 28. Thereby, the withdrawal of the headrest supports 30L and 30R from each support bracket 28 is restricted.

  The left and right headrest supports 30L and 30R provided on the left seat back 12L correspond to the left seat headrest 14L, and the left and right headrest supports 30L and 30R provided on the right seat back 12R correspond to the right seat headrest 14R. doing. Each of the left seat headrest 14L and the right seat headrest 14R includes a stay 32 and a pad portion 34. The left seat headrest 14L and the right seat headrest 14R each include a support bracket 36 (see FIGS. 2, 3, and 5) and a headrest support 38.

  Each stay 32 is formed by bending a metal pipe material, for example, and has a substantially inverted U shape when viewed from the front-rear direction of the seat. Specifically, each stay 32 has a pair of left and right leg portions 32L and 32R, and a connecting portion 32U that connects the upper end portions of the pair of left and right leg portions 32L and 32R in the seat left-right direction. The upper end portions of the left and right leg portions 32L, 32R are bent toward the seat front side and the seat lower side so that the connecting portion 32U is positioned on the seat front side with respect to the left and right headrest supports 30L, 30R.

  In addition, a mounting bracket 40 made of sheet metal is fixed to the upper ends of the left and right leg portions 32L and 32R, behind the seat of the connecting portion 32U. The mounting bracket 40 is a constituent member of the stay 32, and is disposed in a posture in which the thickness direction is along the front-rear direction of the seat. A support bracket 36 is provided on the back surface (surface on the rear side of the seat) of the mounting bracket 40. The support bracket 36 is formed in a substantially rectangular tube shape made of metal, for example, and is disposed in a posture in which the longitudinal direction is along the left-right direction of the seat, and is fixed to the mounting bracket 40 by means such as welding. A headrest support 38 having the same structure as the headrest support 30R described above is coaxially inserted and attached to the support bracket 36.

  A pad portion 34 is attached to the upper portion of each stay 32. For example, the pad portion 34 is formed in a substantially rectangular shape when viewed from the front-rear direction of the seat, and is formed in a substantially inverted L shape when viewed from the left-right direction of the seat. The pad portion 34 is composed of a pad member made of a foam such as urethane foam and a skin material covering the surface of the pad member. In the pad member, the upper portion of the stay 32, the mounting bracket 40, the support bracket 36, and the headrest support 38 are embedded by means such as integral foam molding. However, the flange portion (reference numeral omitted) provided at the end of the headrest support 38 on the center side in the left-right direction of the seat is exposed outside the pad portion 34 (center side in the left-right direction of the seat).

  The left and right leg portions 32L, 32R of the stay 32 of the left seat headrest 14L are inserted into the left and right headrest supports 30L, 30R provided on the left seat back 12L from above the seat, and the stay of the right seat headrest 14R The left and right leg portions 32L, 32R of 32 are inserted into the left and right headrest supports 30L, 30R provided on the right seat back 12R from above the seat.

  Of the left and right headrest supports 30L, 30R, the headrest support 30L on the left side of the seat is provided with a lock mechanism (not shown), and when the lock mechanism engages with the leg portion 32L, the leg portion 32L with respect to the headrest support 30L. The upper and lower displacement of the is regulated. This lock mechanism has a lock release button 31 provided on the upper end portion (the flange portion described above) of the headrest support 30L. When the lock release button 31 is pressed, the restriction is released, The vertical position of the left seat headrest 14L or the right seat headrest 14R can be adjusted.

  On the other hand, in the left seat back 12L and the right seat back 12R, extension brackets 42 are fixed to the frame body 20 on the upper end side of the side frame portion 20S on the center side in the left-right direction of the seat. The left and right extension brackets 42 have the same configuration except that they are formed symmetrically. These extension brackets 42 are formed by press-molding a sheet metal, for example, and are arranged in a posture in which the plate thickness direction is along the front-rear direction of the seat. The left and right extension brackets 42 are formed in a substantially rectangular shape (substantially hexagonal shape) when viewed from the front-rear direction of the seat, and are joined to the frame body 20 and the back panel 22 by means such as welding. Support brackets 44 are respectively provided on the front surfaces of the left and right extension brackets 42.

  The left and right support brackets 44 have the same configuration as the support bracket 28 described above. These support brackets 44 are arranged such that the longitudinal direction thereof is in the vertical direction of the seat, and are fixed to each extension bracket 42 by means such as welding. A headrest support 46 having the same configuration as the headrest support 30L described above is coaxially inserted and attached to each support bracket 44. These headrest supports 46 correspond to the center headrest 16.

  As described above, the center headrest 16 is divided into the left divided portion 16L disposed at the upper end portion of the left seat back 12L and the right divided portion 16R disposed at the upper end portion of the right seat back 12R. The left divided portion 16L and the right divided portion 16R have the same configuration except that they are formed symmetrically. Each of the left divided portion 16L and the right divided portion 16R includes a pad portion 48 and a stay 50 in which an intermediate portion 50C is embedded in the pad portion 48.

  For example, the pad portion 48 is formed in a substantially rectangular shape when viewed from the front-rear direction of the seat and is formed in a substantially inverted L shape when viewed from the left-right direction of the seat. The pad portion 48 is composed of a pad member made of a foam such as urethane foam and a skin material covering the surface of the pad member. In the pad member, an intermediate portion 50C of the stay 50 is embedded by means such as integral foam molding. The stay 50 is formed by bending a metal pipe material, and is formed in an L shape (substantially L shape). In this stay 50, an intermediate portion 50C including a single bent portion is embedded in the pad portion 48, and one end side 50A as one leg portion and the other end side 50B as the other leg portion are pad portions 48. Protrudes outside. The material of the stay 50 is not limited to the pipe material, and may be a bar material, and can be changed as appropriate.

  One end side 50A of the stay 50 of the left divided portion 16L extends from the lower surface of a rear protruding portion 48A (reference numeral omitted except in FIG. 5) formed to protrude rearward from the pad portion 48 of the left divided portion 16L to the lower side of the seat. The left seat back 12L is inserted into the headrest support 46 from above the seat. Thus, one end side 50A of the stay 50 of the left divided portion 16L is connected to the left seat back 12L so as to be movable up and down. Further, the other end side 50B of the stay 50 of the left divided portion 16L extends from the left side surface of the pad portion 48 of the left divided portion 16L to the left side of the seat and into the headrest support 38 of the left seat headrest 14L from the right side of the seat. Plugged in. Thereby, the other end side 50B of the stay 50 of the left division part 16L is connected with the left seat headrest 14L.

  One end side 50A of the stay 50 of the right dividing portion 16R extends from the lower surface of a rear protruding portion 48A (reference numeral omitted except in FIG. 5) formed to protrude rearward from the upper portion of the pad portion 48 of the right dividing portion 16R to the seat lower side. The right seat back 12R is inserted into the headrest support 46 from above the seat. Thereby, one end side 50A of the stay 50 of the right division part 16R is connected to the right seat back 12R so as to be movable up and down. Further, the other end side 50B of the stay 50 of the right split portion 16R extends from the right side surface of the pad portion 48 of the right split portion 16R to the right side of the seat and into the headrest support 38 of the right seat headrest 14R from the left side of the seat. Plugged in. Thereby, the other end side 50B of the stay 50 of the right division part 16R is connected with the right seat headrest 14R.

  Like the headrest support 30L, the left and right headrest supports 46 are provided with a lock mechanism (not shown). When the lock mechanism engages with one end side 50A of the stay 50, the upper and lower portions of the stay 50 with respect to the headrest support 46 are fixed. Displacement is regulated. This lock mechanism has a lock release button 47 provided at the upper end portion of the headrest support 46. When the lock release button 47 is pressed, the restriction is released, and the left split portion 16L or the right It is possible to adjust the vertical position of the dividing portion 16R.

  However, since the other end side 50B of the stay 50 of the left split portion 16L is inserted into the headrest support 38 of the left seat headrest 14L from the right side of the seat, when adjusting the vertical position of the left split portion 16L, The vertical position of the left seat headrest 14L is also adjusted together (see FIG. 6). Similarly, since the other end side 50B of the stay 50 of the right split portion 16R is inserted from the left side of the seat with respect to the headrest support 38 of the right seat headrest 14R, the vertical position of the right split portion 16R is adjusted. In addition, the vertical position of the right seat headrest 14R is also adjusted together (see FIG. 6).

(Function and effect)
Next, the operation and effect of the first embodiment will be described.

  In the rear seat 10 having the above-described configuration, the left seat headrest 14L and the right seat headrest 14R are connected to upper ends of the left seatback 12L and the right seatback 12R provided adjacent to each other in the left-right direction of the seat so as to be movable up and down. A center headrest 16 is provided between the left seat headrest 14L and the right seat headrest 14R. The center headrest 16 is divided into a left divided portion 16L disposed at the upper end portion of the left seat back 12L and a right divided portion 16R disposed at the upper end portion of the right seat back 12R. Each of the 16L and the right divided portion 16R has a pad portion 48 and a stay 50 in which an intermediate portion 50C is embedded in the pad portion 48.

  The left split portion 16L of the center headrest 16 has one end side 50A of the stay 50 extending from the pad portion 48 to the seat lower side and connected to the left seat back 12L so as to be movable up and down, while the other end side 50B of the stay 50 is connected to the pad portion. It extends from 48 to the left side of the seat and is connected to the left seat headrest 14L. Further, the right split portion 16R of the center headrest 16 has one end side 50A of the stay 50 extending from the pad portion 48 to the seat lower side and connected to the right seat back 12R so as to be movable up and down, while the other end side 50B of the stay 50 is connected. The pad portion 48 extends to the right side of the seat and is connected to the right seat headrest 14R.

  Thus, the one end side 50A of the stay 50 extends from the pad portion 48 to the seat lower side, while the other end side 50B of the stay 50 extends from the pad portion 48 to the left side or the right side of the seat. Compared to a configuration in which the upper portion of the stay bent in a substantially inverted U shape as viewed from the front side is embedded in the pad portion 48, the degree of freedom in design such as the lateral width dimension (dimension in the left-right direction of the seat) of the pad portion 48 Will improve. As a result, the center headrest 16 can be easily applied to a vehicle having a narrow vehicle width or a vehicle having a narrow seat width for a central occupant, which contributes to an improvement in the safety of the central occupant.

  Moreover, in the present embodiment, the stays 50 of the left split portion 16L and the right split portion 16R are connected at one end side 50A to the left seat back 12L or the right seat back 12R, and at the other end 50B to the left seat headrest 14L or right side. It is connected to the seat headrest 14R. As a result, the load input from the center seated person's head to the left split portion 16L and the right split portion 16R at the time of a rear collision of the vehicle is transferred to the left seat back 12L, right seat back 12R, left seat headrest 14L and right seat. It can be dispersed in the headrest 14R. Accordingly, it is easy to ensure the strength. Moreover, the freedom degree of the layout of the center headrest 16 is improved as compared with the configuration in which both the one end side 50A and the other end side 50B of each stay 50 are connected to the left seat back 12L or the right seat back 12R.

  In the present embodiment, the pad portion 34 and the headrest support 38 are attached to the stays 32 of the left seat headrest 14L and the right seat headrest 14R. The other end side 50B of the stay 50 in the left split portion 16L of the center headrest 16 is inserted into the headrest support 38 of the left seat headrest 14L, and the other end side 50B of the stay 50 in the right split portion 16R of the center headrest 16 is provided. Is inserted into the headrest support 38 of the right seat headrest 14R. Since it is configured in this way, the other end side 50B of the stay 50 of the left split portion 16L and the other end side 50B of the stay 50 of the right split portion 16R are connected to the left seat headrest using a known (existing) headrest support. 14L and right seat headrest 14R.

  Moreover, in this embodiment, each stay 50 of the left division | segmentation part 16L and the right division | segmentation part 16R is formed in the L shape by the pipe material. Thus, since the stay 50 is formed in a simple bent shape, the stay 50 can be easily manufactured. In addition, it is easy to ensure the strength of the stay 50 as compared to a stay that has a complicated bent shape.

  Further, in the present embodiment, in the left seat back 12L and the right seat back 12R, the extension bracket 42 fixed to the connecting portion between the side frame portion 20S and the upper frame portion 20U on the center side in the left-right direction of the seat It extends to. A headrest support 46 in which each one end side 50A of the stay 50 of the left divided portion 16L and the right divided portion 16R of the center headrest 16 is removably inserted is attached to the extension bracket 42. With this configuration, the distance between the side frame portion 20S on the center side in the left-right direction of the left seat back 12L and the side frame portion 20S on the center side in the left-right direction of the right seat back 12R (arrow W in FIG. 1). Reference) can be widened. Thereby, in the left seat back 12L and the right seat back 12R, it becomes easy to ensure cushioning properties in a region where a center seated person who uses the center headrest 16 can lean.

  Next, a second embodiment of the present invention will be described. In addition, about the structure and operation | movement fundamentally similar to 1st Embodiment, the same code | symbol as 1st Embodiment is provided, and the description is abbreviate | omitted.

<Second Embodiment>
FIG. 7 shows a partial configuration of a rear seat 60 as a vehicle seat according to the second embodiment of the present invention in a front view corresponding to FIG. In the rear seat 60, the support bracket 36, the headrest support 38, and the mounting bracket 40 according to the first embodiment are omitted from the left seat headrest 14L and the right seat headrest 14R. Instead, the left seat back 12L and the right seat back 12R are provided with a support bracket 62 and a headrest support 64, respectively.

  Each support bracket 62 has the same configuration as that of the support bracket 28 according to the first embodiment, between the headrest support 30L and the headrest support 46 in the left seat back 12L, and the headrest support 30R in the right seat back 12R. They are respectively arranged between the headrest support 46. Each support bracket 62 is fixed to the upper frame 20U in a posture in which the longitudinal direction is along the seat vertical direction. Each headrest support 64 has the same configuration as the headrest support 30 </ b> R according to the first embodiment, and is coaxially inserted into and attached to each of the support brackets 62.

  Further, in this embodiment, the stays 50 of the left divided portion 16L and the right divided portion 16R of the center headrest 16 are formed in an inverted U shape (substantially inverted U shape) when viewed from the front-rear direction of the seat. Specifically, the left split portion 16L is configured such that the other end side 50B of the stay 50 extends from the left side surface of the pad portion 48 to the left side of the seat and bends to the lower side of the seat to enter the headrest support 64 of the left seat back 12L. Plugged in. Thereby, the other end side 50B of the stay 50 of the left division | segmentation part 16L is connected with the left seat back 12L so that raising / lowering is possible. Similarly, in the right split portion 16R of the center headrest 16, the other end side 50B of the stay 50 extends from the right side surface of the pad portion 48 to the right side of the seat and bends to the lower side of the seat. Is plugged in. Thereby, the other end side 50B of the stay 50 of the right division | segmentation part 16R is connected with the right seat back 12R so that raising / lowering is possible. Other configurations are the same as those in the first embodiment.

  In this embodiment, one end side 50A of the stay 50 extends from the pad portion 48 to the seat lower side, while the other end side 50B of the stay 50 extends from the pad portion 48 to the left side or the right side of the seat. Compared with a configuration in which the upper portion of the stay bent in a substantially inverted U shape when viewed from the front side of the seat is embedded in the pad portion 48, the degree of freedom in design such as the width of the pad portion 48 is improved. This facilitates application to a vehicle having a narrow vehicle width and a vehicle having a narrow seat width for a central occupant.

<Supplementary explanation of the embodiment>
In each of the embodiments described above, the left seat back 12L and the right seat back 12R are configured to include the extension bracket 42, but the extension bracket 42 may be omitted. That is, for example, in the case where the frame main body 20 of the left seat back 12L and the frame main body 20 of the right seat back 12R are arranged close to each other, the left and right support brackets 44 are directly fixed to each frame main body 20. Also good.

  In the first embodiment, the stays 50 of the left split portion 16L and the right split portion 16R are formed in an L shape or an inverted U shape. However, the present invention is not limited to this. That is, for example, the intermediate portion 50C of the stay 50 may be bent at a plurality of bent portions.

  In the first embodiment, the left seat headrest 14L and the right seat headrest 14R are each provided with the support bracket 36, the headrest support 38, and the mounting bracket 40, but these members are omitted. Good. In this case, for example, the stays 50 of the left split portion 16L and the right split portion 16R and the stays 32 of the left seat headrest 14L and the right seat headrest 14R are coupled by means such as welding.

  In addition, the present invention can be implemented with various modifications without departing from the scope of the invention. It goes without saying that the scope of rights of the present invention is not limited to the above embodiments.

10 Rear seat (vehicle seat)
12L Left seat back 12R Right seat back 14L Left seat headrest 14R Right seat headrest 16 Center headrest 16L Left split portion 16R Right split portion 20 Frame body 20S Side frame portion 32 Stay (Stay with left seat headrest and right seat headrest)
34 Pad part (pad part which left seat headrest and right seat headrest have)
38 Headrest support (left and right seat headrests have
Headrest support)
46 Headrest support (with left and right seat backs
Headrest support)
48 Pad part (pad part which left side part and right side part have)
50 stays (stays on left side and right side)
50A One end side 50B The other end side 50C Intermediate part 60 Rear seat

Claims (5)

A left seat back and a right seat back that are provided adjacent to each other in the left-right direction of the seat and are capable of tilting independently of each other about an axis along the left-right direction of the seat;
A left seat headrest and a right seat headrest connected to the respective upper ends of the left seat back and the right seat back so as to be movable up and down;
It is provided between the left seat headrest and the right seat headrest, and is divided into a left split portion disposed at the upper end portion of the left seat back and a right split portion disposed at the upper end portion of the right seat back. And the central seat headrest having a pad portion and a stay with an intermediate portion embedded in the pad portion, respectively,
With
The left split portion has one end side of the stay extending from the pad portion to the seat lower side and connected to the left seat back so as to be movable up and down, while the other end side of the stay extends from the pad portion to the left side of the seat. Connected to the left seat headrest,
The right split portion has one end side of the stay extending from the pad portion to the seat lower side and connected to the right seat back so as to be movable up and down, while the other end side of the stay extends from the pad portion to the seat right side. A vehicle seat coupled to the right seat headrest. The left seat headrest and the right seat headrest are:
A stay connected to the left seat back or the right seat back;
A pad portion attached to the stay;
A headrest support attached to the stay;
Have
The other end side of the stay of the left split part is inserted into the headrest support of the left seat headrest,
The vehicle seat according to claim 1, wherein the other end side of the stay of the right split portion is inserted into the headrest support of the right seat headrest.   The vehicle seat according to claim 1 or 2, wherein each stay of the left divided portion and the right divided portion is formed in an L shape. A left seat back and a right seat back that are provided adjacent to each other in the left-right direction of the seat and are capable of tilting independently of each other about an axis along the left-right direction of the seat;
A left seat headrest and a right seat headrest connected to the respective upper ends of the left seat back and the right seat back so as to be movable up and down;
It is provided between the left seat headrest and the right seat headrest, and is divided into a left split portion disposed at the upper end portion of the left seat back and a right split portion disposed at the upper end portion of the right seat back. And the central seat headrest having a pad portion and a stay with an intermediate portion embedded in the pad portion, respectively,
With
The left split portion has one end side of the stay extending from the pad portion to the seat lower side and connected to the left seat back so as to be movable up and down, while the other end side of the stay extends from the pad portion to the left side of the seat. And bent to the lower side of the seat and connected to the left seat back so as to be movable up and down,
The right split portion has one end side of the stay extending from the pad portion to the seat lower side and connected to the right seat back so as to be movable up and down, while the other end side of the stay extends from the pad portion to the seat right side. And a vehicle seat bent to the lower side of the seat and connected to the right seat back so as to be lifted and lowered. The left seat back and the right seat back are
A frame body having a pair of left and right side frame parts;
An extension bracket that is fixed to the frame main body at the upper end side of the side frame portion on the center side in the left-right direction of the seat and extends toward the center side in the left-right direction of the seat than the side frame portion on the center side of the seat left-right direction,
A headrest support attached to the extension bracket;
Have
The one end side of the stay of the left split portion is inserted into the headrest support of the left seat back,
The vehicle seat according to any one of claims 1 to 4, wherein the one end side of the stay of the right split portion is inserted into the headrest support of the right seat back.

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