JP2018131064A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure rigidity of an area around a fixing part which is formed at a side part of a seat back frame to fix a guide member for guiding an expansion direction of an airbag.SOLUTION: A seat back frame F1 includes: extension portions 11, 12 disposed at end parts of a seat back frame in a seat width direction; and a plate-like frame 20 which contacts with the extension portion 11 in the seat width direction. The plate-like frame 20 is formed with: a fixing hole 22 which is formed to fix webbing B; and a reinforcement bead 24 protruding in the seat width direction. In an extension direction of the extension portion 11, at least part of the fixing hole 22 is located in a range where the reinforcement bead 24 is formed and a range where the plate-like frame 20 contacts with the extension portion 11.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle seat, and more particularly to a vehicle seat in which an airbag is disposed inside a seat back.

  A vehicle seat in which an airbag is disposed inside a seat back is already well known. In addition, among the above vehicle seats, there is one in which a through hole is formed in a side portion of the seat back frame, and a clip for attaching a bundling is attached to the through hole (see, for example, Patent Document 1). ). Here, the force cloth is a cloth member used for guiding the deployment direction of the airbag. And the clip provided in the edge part of the force cloth is inserted in said through-hole, and thereby the force cloth is fixed to the seat back frame.

JP2015-51700A

  By the way, as described above, when a fixing portion for fixing a guide member such as a baffle is provided on the side portion of the seat back frame, it is necessary to ensure rigidity around the fixing portion. In addition, in the sheet | seat described in patent document 1, a through-hole corresponds to a fixing | fixed part.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to form a fixing portion for fixing a guide member for guiding the airbag deployment direction on the side portion of the seat back frame. Another object of the present invention is to provide a vehicle seat capable of ensuring the rigidity around the fixed portion.

  According to the vehicle seat of the present invention, the subject is a vehicle seat having a seat back and an airbag disposed inside the seat back, the seat back having a seat back frame. The seat back frame is disposed at an end portion of the seat back frame in the width direction of the vehicle seat and extends in a predetermined direction, and the first frame in the width direction. And a second frame side part constituent part in contact with the side part constituent part. The second frame side part constituent part is formed to fix a guide member for guiding the deployment direction of the airbag. A fixing portion and a protruding portion protruding in the width direction are formed, and in the extending direction of the first frame side portion constituting portion, at least a part of the fixing portion is formed with the protruding portion. Located within that, and said second frame side component is resolved by the position within the range in contact with the first frame side component.

  In the vehicle seat of the present invention configured as described above, the side portion of the seat back frame has the first frame side portion constituting portion and the second frame side portion constituting portion which are in contact with each other. Moreover, the fixing | fixed part formed in order to fix guide members, such as a buff, and the protruding part are formed in the 2nd frame side part structure part. And at least one part of a fixing | fixed part is located in the range in which the protruding part is formed in the extension direction of the 1st frame side part structure part. Thereby, the rigidity around the fixed portion is enhanced by the formation of the raised portion. Furthermore, at least a part of the fixing portion is located within a range in which the second frame side portion constituting portion is in contact with the first frame side portion constituting portion in the extending direction of the first frame side portion constituting portion. Thereby, the rigidity around the fixed portion is further enhanced by the joining of the first frame side portion constituting portion. As a result, according to the vehicle seat of the present invention, it is possible to ensure the rigidity around the fixed portion at the side portion of the seat back frame.

Moreover, regarding the configuration of the above vehicle seat, the second frame side component is configured such that the first frame side component extends from one end to the other end of the second frame side component in the extending direction. It is preferable that it is in contact with.
In the above configuration, the second frame side component is in contact with the first frame side component from the upper end to the lower end (that is, from one end to the other end in the extending direction of the first frame side component). Yes. Thereby, since the range where rigidity is improved by joining with the first frame side part constituent part in the second frame side part constituent part becomes wider, it becomes easy to secure the rigidity around the fixed part.

Further, regarding the configuration of the vehicle seat, the first frame side portion configuration portion is provided at each of both end portions of the seat back frame in the width direction, and the first frame side portion configuration in the width direction is provided. It is more preferable that a pressure receiving member that supports the back of the occupant is provided between the portions, and that the protruding portion is formed with a pressure receiving member attachment portion that is formed to attach the pressure receiving member. is there.
In said structure, the pressure receiving member attaching part is provided in the protruding part in the 2nd frame side part structure part. As a result, it is possible to suppress a decrease in the rigidity around the pressure receiving member attaching portion in the second frame side portion constituting portion. In addition, with the above configuration, it is not necessary to newly provide a space for forming the pressure receiving member attachment portion in the second frame side portion configuration portion, so the second frame side portion configuration portion is enlarged by forming the pressure receiving member attachment portion. Can be suppressed.

In addition, regarding the configuration of the vehicle seat, the second frame side component is disposed in a state intersecting with the side wall that forms the end of the second frame side component in the width direction. A recess-like rear reinforcing portion formed along the extending direction, and at least one of the fixing portions in the extending direction. It is more preferable that the portion is located within a range where the rear reinforcing portion is formed.
In said structure, at least one part of a fixing | fixed part is located in the range in which the rear side reinforcement part is formed in the extension direction of the 1st frame side part structure part. Thereby, the rigidity around the fixed portion in the second frame side portion constituting portion is further increased by the rear side reinforcing portion.

In addition, with regard to the configuration of the vehicle seat, the second frame side is only at the first end of the first end and the second end of the seat back frame located on opposite sides in the width direction. A portion constituting portion is provided, and the first frame side portion constituting portion provided at the second end portion has the same side as the second end portion among both end portions of the seat back in the width direction. A shape holding member for holding the shape of the portion located in the vehicle is attached, and the position of the fixing portion is located at the front end and the second end portion of the shape holding member in the front-rear direction of the vehicle seat. It is even more preferable that it is between the rear end of the first frame side portion constituting portion and between the upper end and the lower end of the shape holding member in the extending direction.
In the above configuration, the second frame side portion configuration portion is provided only on one (first end portion) of both sides of the seat back frame, and the second frame side portion configuration is provided on the other (second end portion). There is no section. In addition, a shape holding member is attached to the second end where the second frame side component is not provided. And the fixing | fixed part is located between the front end of a shape holding member in the front-back direction, and the rear end of the 1st frame side part structure part located in a 2nd end, and between the upper end and lower end of a shape holding member Located in. Thereby, when forming a fixing | fixed part in the 2nd frame side part structure part of a 1st end part, according to the arrangement position with the 1st frame side part structure part and shape holding member which were provided in the 2nd end part It is possible to form the fixing portion at an appropriate position.

Further, with regard to the configuration of the vehicle seat, a reclining mechanism for rotating the seat back is attached to an end portion of the seat back frame in the width direction, and the seat back frame in the width direction Both of the first frame side part constituent part and the second frame side part constituent part are provided at the end part to which the reclining mechanism is attached, and the second frame side part It is more and more preferable that the reclining mechanism is assembled to the component.
In said structure, both the 1st frame side part structure part and the 2nd frame side part structure part are provided in the edge part to which the reclining mechanism is attached among the both sides of a seat back frame. And the reclining mechanism is assembled | attached to the 2nd frame side part structure part. Thereby, since the reclining mechanism is assembled, the rigidity of the second frame side component can be further increased.

According to the present invention, the rigidity around the fixed portion is ensured at the side portion of the seat back frame.
Further, according to the present invention, since the range in which the rigidity is increased by joining the first frame side part constituent part in the second frame side part constituent part becomes wider, it is easy to ensure the rigidity around the fixed part. Become.
In addition, according to the present invention, it is not necessary to newly secure a formation space for the pressure receiving member attachment portion in the second frame side portion configuration portion, and the second frame side portion configuration portion is increased in size by forming the pressure receiving member attachment portion. It can be suppressed.
Further, according to the present invention, the rigidity around the fixed portion in the second frame side portion constituting portion is further increased by the formation of the rear reinforcing portion.
Further, according to the present invention, in the second frame side part constituent part provided at the first end part, the fixing part is formed of the first frame side part constituent part provided at the second end part and the shape holding member. It is formed at an appropriate position according to the arrangement position.
Moreover, according to this invention, since the reclining mechanism is assembled | attached to the 2nd frame side part structure part in which the fixing | fixed part was formed, the rigidity of the said 2nd frame side part structure part is improved more.

1 is an external view of a vehicle seat according to an embodiment of the present invention. It is a perspective view which shows the flame | frame of the vehicle seat which concerns on one Embodiment of this invention. It is a schematic cross section which shows the attachment structure of a bundling. It is the figure which expanded and showed the side frame of the seat back frame. FIG. 5 is a view of the seat back frame when viewed from one end side in the seat width direction (X direction illustrated in FIG. 4). It is a rear view of a seat back frame. It is a perspective view which shows the seat back which concerns on a modification.

  Hereinafter, a vehicle seat according to an embodiment (this embodiment) of the present invention will be described. In addition, embodiment described below is for making an understanding of this invention easy, and does not limit this invention. That is, the present invention can be changed and improved without departing from the gist thereof, and the present invention includes its equivalents.

  Incidentally, hereinafter, the vehicle seat will be described as a specific example of the vehicle seat. However, the vehicle seat is an example of a vehicle seat and is not limited thereto. That is, the present invention can be applied to a vehicle seat other than a vehicle seat, specifically, a seat seat mounted on a vehicle other than a vehicle (for example, a ship or an aircraft).

  In the following description, the “front-rear direction” is the front-rear direction of the vehicle seat and coincides with the traveling direction of the vehicle. Further, the “seat width direction” is the width direction (lateral width direction) of the vehicle seat, and coincides with the left-right direction when viewed from the occupant seated on the vehicle seat. The “vertical direction” is the vertical direction (height direction) of the vehicle seat and coincides with the vertical direction when the vehicle is traveling on a horizontal plane.

  Note that the position, state, orientation, etc. of each part of the seat, which will be described below, except when otherwise noted, when the vehicle seat is in the normal state (specifically, the vehicle seat is the seat back is the seat cushion). The content is in a state of being tilted by a predetermined angle with respect to).

  First, the vehicle seat (hereinafter, vehicle seat S) according to the present embodiment will be outlined. The vehicle seat S has the appearance shown in FIG. 1 and constitutes a seat on which a vehicle occupant is seated. The vehicle seat S includes a seat back S1, a seat cushion S2, and a headrest S3.

  The seat back S1 includes a seat back frame F1 that forms a skeleton thereof, and a pad material P1 is applied to the seat back frame F1, and the pad material P1 is covered with a skin material L1. The seat cushion S2 has a seat cushion frame F2 that forms a skeleton thereof, and is configured by placing a pad material P2 on the seat cushion frame F2 and covering the pad material P2 with a skin material L2.

  The headrest S3 is attached to the upper end portion of the seat back S1. More specifically, a headrest pillar F3 made of a pipe bent in an inverted U shape is attached to the upper end portion of the seat back frame F1. And the headrest S3 is provided in the upper end part of seat back S1 because the main-body part of headrest S3 is supported by the headrest pillar F3.

  As shown in FIG. 2, a slide rail mechanism R for moving the seat body including the seat cushion S2 in the front-rear direction is disposed below the seat cushion frame F2. Furthermore, as shown in the figure, the height (position in the vertical direction) of the seat body is adjusted between the slide rail mechanism R and the seat body (seat back S1, seat cushion S2, and headrest S3) in the vertical direction. A height adjustment mechanism H is provided for this purpose.

  The seat back S1 is assembled to the seat cushion S2 via the reclining mechanism Q, and can tilt in the front-rear direction with respect to the seat cushion S2. That is, the vehicle seat S includes a reclining mechanism Q for rotating the seat back S1, and the tilt angle of the seat back S1 with respect to the seat cushion S2 can be adjusted. In the present embodiment, as shown in FIG. 2, the reclining mechanism is provided only at one end of both ends (both sides) of the seat back frame F1 in the seat width direction.

  Furthermore, as shown in FIG. 1, the vehicle seat S includes an airbag module A at an end portion in the seat width direction. The airbag module A is a device configured by housing the airbag AG and related devices in a case, and is disposed inside the seat back S1. Specifically, the airbag module A is fixed to the side portion of the seat back frame F1.

  In addition, a webbing B is disposed around the airbag module A as shown in FIG. The webbing B corresponds to a guide member, and guides the deployment direction of the airbag AG when the airbag AG in the airbag module A is inflated and deployed toward the outside of the seat. More specifically, the webbing B is provided in a pair of front and rear as shown in FIG. 3 and is arranged in the seat back S1 in a state in which each end is sewn to the end of the skin material L1. Further, an airbag module A is disposed between a pair of front and rear webbings B.

  When an inflator (not shown) in the airbag module A is activated and the airbag AG is inflated, the airbag AG is guided by the pair of webbings B, and the end of the skin material L1 is sewn. Expand toward the location. At this time, the pair of webbings B move so that the webbings B are separated from each other by the bulging pressure of the airbag AG. Thereby, the stitching | suture location of the terminal of the skin material L1 is torn, and the airbag AG jumps out of a sheet | seat from the tear.

  In addition, as shown in FIG. 3, each edge part (edge part on the opposite side to the side sewn on the terminal of the skin material L1) of a pair of webbings B is on the side part of the seat back frame F1. It is fixed. More specifically, a clip (hereinafter referred to as “blanket clip C”) is attached to an end portion of the webbing B located on the front side of the pair of webbings B. Further, a through hole (strictly speaking, a fixing hole 22 to be described later) is formed in the side portion of the seat back frame F1 to hold the webbing clip C. The webbing clip C in a state where the end part of the webbing B is attached to the through hole is fitted to the side part of the seat back frame F1.

  Next, a detailed configuration of the seat back frame F1 will be described with reference to FIGS. 2 and 4 to 6. The seat back frame F1 according to the present embodiment is lighter than a seat back frame included in a normal vehicle seat. Specifically, as shown in FIG. 2, one side portion of both side portions of the seat back frame F <b> 1 is configured by a pipe and a plate material. The other side portion is constituted only by pipes, and there is no plate material. Thus, the seat back frame F1 according to the present embodiment is asymmetrical in the left-right direction, and is lightened by the amount of the plate material constituting one side portion not existing on the other side portion.

  The configuration of the seat back frame F1 will be further described. As shown in FIGS. 2 and 4, the seat back frame F1 includes a main frame 10, a plate frame 20, a shape holding member 30, a pressure receiving member 40, and an upper portion. And a member frame 50.

  The main frame 10 is made of a metal pipe, and is configured by bending the pipe into a substantially rectangular shape and then welding and joining both ends of the pipe. The main frame 10 includes a pair of left and right extending portions 11 and 12 that are positioned at both ends in the seat width direction and extend in a predetermined direction, and a pair of upper and lower connecting portions 13 that connect the extending portions 11 and 12 to each other. 14.

  The extension parts 11 and 12 correspond to the first frame side part constituting part and constitute the side part of the seat back frame F1. That is, the extending portions 11 and 12 are slightly inclined with respect to the vertical direction in the extending direction of the extending portions 11 and 12 of the seat back frame F1 in the seat width direction. In the vehicle seat S in the state, the vehicle seat S is inclined so as to be positioned rearward as it goes toward the upper ends of the extended portions 11 and 12. Further, each of the extending portions 11 and 12 is bent at an intermediate position in the extending direction, extends obliquely toward the inner side in the sheet width direction, and is then bent again along the original extending direction.

  The upper connecting portion 13 is a portion that connects the upper ends of the extending portions 11 and 12, and is continuous with the extending portions 11 and 12. A cylindrical pillar guide 15 is attached to the upper connecting portion 13. By inserting the headrest pillar F3 into the pillar guide 15, the headrest pillar F3 is supported by the seat back frame F1. The lower connecting portion 14 is a portion that connects the lower ends of the extending portions 11 and 12, and is continuous with the extending portions 11 and 12.

  In the above embodiment, the headrest pillar F3 and the main frame 10 are configured as separate parts. That is, in the above-described embodiment, the frame forming the skeleton of the seat back S1 and the frame forming the skeleton of the headrest S3 are separated from each other, but the present invention is not limited to this. For example, as shown in FIG. 7, a part of the main frame 10 (specifically, the upper connecting portion 13) may be bent in an inverted U shape to constitute the skeleton frame of the headrest S <b> 3. That is, in the configuration illustrated in FIG. 7, the seat back S1 and the headrest S3 are integrated, and both are configured by a common skeleton frame.

  The plate-like frame 20 corresponds to the second frame side part constituting part and constitutes the side part of the seat back frame F1. The plate-like frame 20 is constituted by a metal plate formed in the shape shown in FIG. In addition, the plate | board thickness of the metal plate which comprises the plate-shaped flame | frame 20 differs from the thickness of the metal pipe which comprises the extension parts 11 and 12, for example, it is thinner. In the present embodiment, as shown in FIG. 2, the plate-like frame 20 is provided only on one of both side portions (both end portions) of the seat back frame F1. Strictly speaking, the plate-like frame 20 is provided only on the side portion to which the reclining mechanism Q is attached.

  Each side part in the seat back frame F1 will be described in detail. Here, of the both side portions of the seat back frame F1, the side portion to which the reclining mechanism Q is attached is hereinafter referred to as “first end portion sd1”, and the opposite side portion is hereinafter referred to as “second end portion sd2”. ". The first end sd1 and the second end sd2 are located on opposite sides in the sheet width direction.

  Both the extended portion 11 and the plate-like frame 20 are provided on the first end sd1. More specifically, at the first end portion sd1, the plate-like frame 20 is in contact with the extending portion 11 outside the extending portion 11 in the sheet width direction. On the other hand, instead of the plate-like frame 20 being provided at the second end sd2, the shape holding member 30 is provided together with the extending portion 12. The configuration of the plate frame 20 will be described in detail later.

  The shape holding member 30 holds the shape of the end portion located on the same side as the second end portion sd2 among the both end portions of the seat back S1 in the seat width direction. More specifically, both end portions of the seat back S1 in the seat width direction constitute bank portions that protrude forward. The shape holding member 30 is used to hold the shape of the bank portion on the same side as the second end portion sd2. The shape holding member 30 according to the present embodiment is made of a metal wire, and is welded to the front end surface of the extended portion 12 in a state of being bent into a mountain shape so as to protrude forward as shown in FIGS. 4 and 5. ing. More specifically, one end of the wire is welded to the front end surface of the central portion of the extending portion 12 in the extending direction, and the other end of the wire is welded to the front end surface of the lower end portion of the extending portion 12.

  As described above, at the second end sd <b> 2, the shape maintaining member 30 bent into a mountain shape is fixed to the front end surface of the extended portion 12. Thereby, when the seat back frame F1 is viewed from the side (strictly speaking, the second end sd2 side), as shown in FIG. Then there is an enclosed space V). In the present embodiment, a substantially trapezoidal enclosed space V is formed when viewed from the side.

  The pressure receiving member 40 supports the back of the occupant when the occupant is seated on the vehicle seat S, and is provided between the pair of left and right extending portions 11 and 12 in the seat width direction. In the present embodiment, the pressure receiving member 40 is made of an elastic metal linear member, and strictly speaking, is configured by an S spring that extends while meandering along the sheet width direction. Moreover, as shown in FIG. 4, the pressure receiving member 40 is provided with two or more in the mutually different position in the up-down direction.

  One end portion in the extending direction of the S spring constituting each pressure receiving member 40 (the end portion located on the same side as the second end portion sd2) is latched by the latching portion 16 attached to the extending portion 12. It is fixed to the extension part 12 by the above. The other end of the S spring in the extending direction (the end located on the same side as the first end sd1) is engaged with an engagement hole 23 formed in the plate frame 20 to thereby form the plate frame 20. Is attached.

  The upper member frame 50 is a metal strip plate that communicates between the pair of left and right extending portions 11 and 12. In addition, the edge part of the upper member frame 50 in a sheet | seat width direction is welded to the upper end part of each extension part 11 and 12, and it inclines so that it may be located back as it goes to a sheet | seat width direction inner side.

  Hereinafter, the configuration of the plate frame 20 will be described in detail with reference to FIGS. 4 to 6. The plate-like frame 20 is joined to the extending portion 11 adjacent to the plate-like frame 20 on the inner side in the sheet width direction. In the present embodiment, as shown in FIG. 4, the plate frame 20 extends from one end (upper end) to the other end (lower end) of the plate frame 20 in the extending direction of the extending portion 11. Is in contact with the extension 11.

  The shape of the plate-like frame 20 will be described in more detail. And a rear wall 25. The side wall 21 is a substantially spindle-shaped part when viewed from the side. The upper part of the side wall 21 is thinner than the central part and the lower part of the side wall 21 (strictly speaking, the length in the front-rear direction is short), and is arcuate along the outer periphery of the extension part 11. Is curved.

  As shown in FIG. 2, the reclining mechanism Q is assembled to the lower part of the side wall 21 from the outside in the seat width direction. Strictly speaking, the mounting bracket 60 is fixed to the outer surface (surface on the outer side in the seat width direction) of the lower portion of the side wall 21, and the reclining mechanism Q is attached to the side wall 21 via the mounting bracket 60.

  As shown in FIG. 5, a substantially rectangular through hole is formed near the front end of the central portion of the side wall 21. As shown in FIG. 4, the through-hole is a hole for holding the above-described webbing clip C, and is hereinafter referred to as a fixing hole 22. The webbing B is indirectly fixed to the plate frame 20 by the webbing clip C being fitted into the fixing hole 22. In this sense, it can be said that the fixing hole 22 corresponds to a fixing portion formed for fixing the webbing B.

  As shown in FIG. 5, a plurality (two in the present embodiment) of the fixing holes 22 are provided at different locations in the vertical direction. Further, as shown in the figure, when the seat back frame F1 is viewed from the side (strictly speaking, the second end portion sd2 side), each fixing hole 22 is formed in the shape holding member 30 and the extended portion 12. It is located inside the enclosed space V. In other words, each fixing hole 22 is located between the front end of the shape holding member 30 and the rear end of the extending portion 12 in the front-rear direction, and the shape holding member 30 in the extending direction of the extending portions 11, 12. It is located between the upper end and the lower end.

  As described above, since the fixing hole 22 is located inside the surrounding space V, the fixing hole 22 is at an appropriate position according to the arrangement position of the extending portion 12 and the shape holding member 30 provided in the second end portion sd2. Will be formed. More specifically, the fixing hole 22 is provided by effectively using the space located between the extending portion 12 and the shape retaining member 31 in the front-rear direction and the extending direction of the extending portions 11 and 12. ing.

  Further, as shown in FIGS. 4 and 5, a reinforcing bead 24 is provided on the side wall 21. This reinforcing bead 24 is formed to improve the rigidity of the plate-like frame 20, and is a portion where a predetermined portion of the side wall 21 is raised in an arc shape toward the inside in the seat width direction, that is, a raised portion. In the present embodiment, as shown in FIG. 5, a plurality of reinforcing beads 24 (two in the present embodiment) are formed so as to be aligned along the extending direction of the extending portion 11.

  Also, one of the plurality of reinforcing beads 24 (specifically, the reinforcing bead 24 positioned above) is one of the plurality of fixing holes 22 (see FIG. 4 and FIG. 5). Specifically, it is provided in the vicinity of the fixing hole 22) positioned further upward. More specifically, at least a part of the fixing hole 22 is located within a range in which the upper reinforcing beads 24 are formed in the extending direction of the extending portions 11 and 12, and the plate-like frame 20. Is located within a range in contact with the extended portion 11.

  According to the positional relationship as described above, even if the fixing hole 22 that is a through hole is provided in the side wall 21 of the plate-like frame 20, a part of the reinforcing bead 24 is formed in the extending direction of the extending portion 11. By being located inside, the rigidity around the fixed hole 22 is enhanced. Furthermore, at least a part of the fixing hole 22 is located in a range in which the plate frame 20 is in contact with the extending portion 11 in the extending direction of the extending portion 11. Thereby, the rigidity around the fixed hole 22 is further enhanced. As a result, the rigidity around the fixing hole 22 is ensured at the side portion (strictly speaking, the first end portion sd1) of the seat back frame F1.

  In addition, the number and the formation location of the fixing holes 22 and the reinforcement beads 24 in the side wall 21 are not particularly limited, and may be different from the above-described number and the formation location.

  Each reinforcing bead 24 is formed with a through-hole penetrating the reinforcing bead 24 in the vertical direction. This through hole constitutes the above-described engagement hole 23 and is formed in a range where the reinforcing bead 24 is formed on the side wall 21. An end portion (end portion located on the same side as the first end portion sd1) of the S spring constituting the pressure receiving member 40 is inserted into the engagement hole 23 and engaged with the edge of the engagement hole 23. Thus, the pressure receiving member 40 is attached to the plate-like frame 20. As described above, the engagement hole 23 functions as a pressure receiving member attachment portion. The upper end of the engagement hole 23 is located above the upper end of the reinforcement bead 24, and the lower end of the engagement hole 23 is located slightly below the lower end of the reinforcement bead 24.

  The rear wall 25 of the plate-like frame 20 is a portion protruding toward the inside in the seat width direction. Further, the rear wall 25 extends from a position located slightly below the upper end of the side wall 21 in the vertical direction to the lower end of the side wall 21. Further, the extended portion 11 is in contact with the front surface of the rear wall 25 (more precisely, the front surface of the rear wall 25 adjacent to the side wall 21) in a range from the upper end to the lower end of the rear wall 25. Yes.

  Further, as shown in FIG. 6, the rear wall 25 is formed with a rear reinforcing bead 26 extending long along the extending direction of the extending portion 11. The rear reinforcing bead 26 corresponds to a rear reinforcing portion, and is a hollow reinforcing bead formed by recessing the back surface of the rear wall 25 toward the front. The rear reinforcing bead 26 is located slightly below the upper end of the rear wall 25 and is located somewhat above the upper end of the rear wall 25.

  Then, at least a part of the fixing hole 22 is located in a range where the rear reinforcing bead 26 is formed in the extending direction of the extending portion 11. In particular, in the present embodiment, both the two fixing holes 22 are provided within the formation range of the rear reinforcing bead 26. Thereby, in the side part of the seat back frame F1, it becomes possible to further increase the rigidity of the location at the same position as the fixing hole 22 in the extending direction of the extending portion 11.

10 Main frame 11, 12 Extension part (1st frame side part composition part)
13, 14 Connecting portion 15 Pillar guide 16 Hook 20 Plate-shaped frame (second frame side component)
21 Side wall 22 Fixing hole (fixing part)
23 Engagement hole (pressure receiving member mounting part)
24 Reinforcement beads (protrusion)
25 Rear wall 26 Rear reinforcement bead (rear reinforcement)
30 shape holding member 40 pressure receiving member 50 upper member frame 60 mounting bracket A air bag module AG air bag B force cloth C force cloth clip F1 seat back frame F2 seat cushion frame F3 headrest pillar H height adjustment mechanism L1, L2 skin material P1 , P2 Pad material Q Reclining mechanism R Slide rail mechanism S Vehicle seat (vehicle seat)
S1 Seat back S2 Seat cushion S3 Headrest sd1 First end sd2 Second end V Enclosed space

Claims (6)

A vehicle seat having a seat back and an airbag disposed inside the seat back,
The seat back has a seat back frame,
The seat back frame is
A first frame side component that is disposed at an end of the seat back frame in the width direction of the vehicle seat and extends in a predetermined direction;
A second frame side part constituent part in contact with the first frame side part constituent part in the width direction,
The second frame side part is formed with a fixing part formed to fix a guide member that guides the deployment direction of the airbag, and a raised part protruding in the width direction,
In the extending direction of the first frame side part constituent part, at least a part of the fixing part is located within a range where the raised part is formed, and the second frame side part constituent part is the first part. A vehicle seat characterized in that the vehicle seat is located within a range in contact with one frame side component.   The second frame side part constituent part is in contact with the first frame side part constituent part from one end to the other end of the second frame side part constituent part in the extending direction. The vehicle seat according to 1. The first frame side portion constituting portion is provided at each of both end portions of the seat back frame in the width direction,
Between the first frame side component parts in the width direction, a pressure receiving member that supports the back of the occupant is provided,
The vehicle seat according to claim 1, wherein a pressure receiving member attaching portion formed to attach the pressure receiving member is formed on the raised portion. The second frame side part constituent part has a side wall that forms an end of the second frame side part constituent part in the width direction, and a rear wall arranged in a state of intersecting the side wall,
The rear wall is provided with a recessed rear side reinforcing portion formed along the extending direction,
4. The vehicle according to claim 1, wherein in the extending direction, at least a part of the fixing portion is located within a range in which the rear reinforcing portion is formed. 5. Sheet. Of the first end portion and the second end portion of the seat back frame located on the opposite sides in the width direction, the second frame side portion constituting portion is provided only at the first end portion,
The first frame side portion constituting portion provided at the second end portion retains the shape of the portion located on the same side as the second end portion among the both end portions of the seat back in the width direction. A shape-retaining member is attached,
The fixing portion is located between a front end of the shape holding member and a rear end of the first frame side portion constituent portion located at the second end portion in the front-rear direction of the vehicle seat, and extends in the extending direction. 5. The vehicle seat according to claim 1, wherein the vehicle seat is located between an upper end and a lower end of the shape holding member. A reclining mechanism for rotating the seat back is attached to an end of the seat back frame in the width direction,
Of the both end portions of the seat back frame in the width direction, the end portion to which the reclining mechanism is attached is provided with both the first frame side portion constituting portion and the second frame side portion constituting portion. And
The vehicle seat according to any one of claims 1 to 5, wherein the reclining mechanism is assembled to the side part of the second frame.

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