JP2018188109A - Vehicular seat pad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular seat pad in which deformation of a pad base material can be effectively prevented.SOLUTION: In a vehicular seat pad in which a pad base material 12 is formed from a foamed resin member, a reinforcement member 30, which is so formed as to follow a bent outer peripheral edge of the pad base material 12, is so embedded on an outer surface side of the pad base material 12 as to be along the outer peripheral edge. Further, the reinforcement member 30 is so configured that a left side reinforcement part 32, which follows a front edge of a left side support wall part 22 which forms an outer peripheral left side part of the pad base material 12, and a right side reinforcement part 33, which follows a front edge of a right side support wall part 24 which forms an outer peripheral right side part, are connected by a reinforcement support part 52.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle seat pad constituted by a pad base material made of a foamed resin member.

  For example, as shown in FIG. 7, a seat 100 installed in a passenger compartment of a passenger car or the like is installed in a seat cushion 102 that supports a lower body of a seated passenger and a rear portion of the seat cushion 102 so as to be tiltable. In general, the seat back 104 is configured to include a supporting seat back 104 and a headrest 106 installed on the upper portion of the seat back 104 to protect the head of the occupant. Such a seat cushion 102 and seat back 104 cover (cover) the surface of a seat pad formed of a foamed resin member such as polyurethane foam with a seat cover formed of a skin material such as fabric, synthetic leather or leather. (For example, Patent Document 1).

Japanese Patent No. 5203691

  Here, since the seat cover is required to be stretched so that there is no slack with respect to the seat pad formed in the required design shape, as in Patent Document 1, fabric, synthetic leather, leather, etc. By pulling the seam allowance of the seat cover formed to sew the skin material into a bag shape into the hog ring groove formed on the seat pad, it is stretched without slack to the surface shape of the seat pad . When such a bag-shaped seat cover is put on the seat pad, or when the outer margin of the seat pad is deformed when the seam allowance of the skin material is pulled into the groove for hog ring, the design of the seat pad is damaged. End up. Such deformation of the seat pad can be suppressed by increasing the rigidity of the foamed resin member constituting the outer peripheral side of the seat pad, such as the upper end portion and the side portion of the seat pad, as in Patent Document 1 described above. it can. However, it is extremely difficult to manufacture by completely controlling the hardness of the foamed resin member that constitutes the seat pad, and the hardness of the foam inevitably varies, so the deformation of the seat pad during covering is completely eliminated. It is difficult to prevent. Further, since the seat pad itself is made of a foamed resin member, its elastic deformation cannot be prevented, so that it is difficult to completely prevent the seat pad from being deformed during covering. In order to prevent such deformation of the seat pad, it is attempted to increase the rigidity of the seat pad by attaching a separately prepared part to the easily deformable portion of the seat pad when performing covering. In addition to an increase in the number of parts, there is a concern that the accuracy of component mounting varies from worker to worker, causing a problem that a certain quality cannot be maintained.

  In recent years, in response to increasing demand for seat design, the seat pad may be formed in a three-dimensional shape having a complicated curved surface shape. In such a case, the seat pad is likely to be deformed. In addition, as the design of the seat pad increases, it may be formed into a three-dimensional shape with a partly extremely thin wall thickness. In such a case, not only the deformation of the seat pad at the time of covering, but also by the occupant, for example It is pointed out that the seat pad is likely to be deformed by pressing the outer peripheral edge of the seat pad.

  That is, an object of the present invention is to provide a vehicle seat pad that can effectively prevent the deformation of the pad base material.

In order to solve the above problems and achieve the intended purpose, the invention according to claim 1 of the present application is
In a vehicle seat pad in which a pad base material is formed of a foamed resin member,
The gist is that a reinforcing member formed so as to follow the curved outer peripheral edge of the pad base material is embedded on the outer surface side of the pad base material along the outer peripheral edge.
Thus, by embedding the reinforcing member on the outer surface side along the outer peripheral edge of the pad base material, the pad base material can be made rigid without forming a rigid and high-density foamed resin member. It is possible to effectively prevent the outer peripheral edge from being deformed. Furthermore, by embedding a reinforcing member in the pad base material, it is not necessary to separately attach a member for preventing deformation, so that the number of work steps can be reduced and a certain quality can be maintained.

The invention according to claim 2
On the upper part of the pad base material, a headrest mounting part formed in a concave shape that opens upward and forward is provided,
The gist of the invention is that the reinforcing member formed in a shape following the opening edge at the front and the upper opening edge of the headrest mounting portion is embedded in the headrest mounting portion.
Thus, by embedding a reinforcing member formed in a shape that follows the front opening edge and the upper opening edge of the headrest mounting portion, the design of the seat pad is improved while improving the shape retainability of the headrest mounting portion. Can do.

The invention according to claim 3
The gist is that the reinforcing member is formed so as to extend from the front edge of the outer peripheral left and right side portions of the pad base material to the upper edge of the outer peripheral upper portion.
In this way, the rigidity of the upper side of the pad base material can be increased by forming the reinforcing member in a shape extending from the front edge of the outer peripheral left and right side portions of the pad base material to the front edge of the outer peripheral upper part. .

The invention according to claim 4
The reinforcing member is configured to connect a left side reinforcing portion that follows the front edge of the outer peripheral left side portion of the pad base material and a right side reinforcing portion that follows the front edge of the outer peripheral right side portion of the pad base material with a reinforcing support portion. This is the summary.
In this way, by configuring the left and right reinforcing portions to be connected by the reinforcing support portions, the torsional rigidity of the reinforcing member can be increased, and the pad base material can be reinforced more stably.

The invention according to claim 5
The reinforcing support portion is provided on the front side of a seat frame that supports the pad base material, and support pieces that protrude rearward are formed at a plurality of positions spaced apart in the left and right in the reinforcing support portion. The gist is that the support piece can be supported by the seat frame through the material.
In this manner, by forming support pieces at a plurality of locations that are separated from each other in the left and right directions in the reinforcing support portion so as to be supported by the seat frame, deformation of the reinforcing member itself can be effectively prevented.

  According to the present invention, the deformation of the pad base material can be effectively prevented.

It is a front view which shows the state which isolate | separated the headrest from the seat pad of this invention. It is a principal part enlarged front view which expands and shows the headrest mounting part in a seat pad. It is a principal part enlarged plan view which expands and shows the headrest mounting part in a seat pad. (a) is a front view of a reinforcing member, and (b) is a plan view of the reinforcing member. It is a perspective view shown in the state which looked at a reinforcing member from back lower right. It is the cut part end elevation which cut the sheet pad longitudinally in the formation position of the 1st support piece of a reinforcement member. It is a perspective view which shows the vehicle seat.

  Next, a preferred embodiment of the vehicle seat pad according to the present invention will be described below with reference to the accompanying drawings. In addition, although it demonstrates as an example what is used for the seat back of the seat installed in passenger compartments, such as a passenger car, as a vehicle seat pad, it is not restricted to this. In the present invention, the support surface side that supports the occupant's back with respect to the seat pad is referred to as “front”, and the back side of the support surface is referred to as “rear”. Further, the side that is the right arm side of the occupant when the occupant is seated on the seat pad is referred to as “right” and the side that is the left arm side is referred to as “left”.

  A seat pad 10 according to the present invention includes a pad base 12 formed by foaming a foamed resin material such as urethane resin in accordance with the outer shape of the seat back, and embedded in the pad base 12 and pad base And a reinforcing member 30 formed so as to follow the outer peripheral edge of the material 12. Then, the seat frame SF (see FIG. 6) that forms the skeleton of the seat is supported by the seat frame SF in a state where the pad base 12 is covered so as to cover the whole from the front side. As shown in FIG. 1, the pad base material 12 is configured to be divided into a plurality of support portions that support the upper body of the occupant by a groove portion 12 a formed on the front surface. Specifically, the pad base material 12 includes a central support portion 14 that supports the upper body of the occupant from the rear, and left and right sides that support the upper body of the occupant from the side by projecting forward from the left and right side portions of the central support portion 14. It is formed in a so-called bucket seat shape having side support portions 16. More specifically, the center support portion 14 has an upper support region 14a that mainly supports the back of the occupant and a lower support region 14b that mainly supports the periphery of the occupant's waist, and left and right side supports. Each of the portions 16 is configured to have an upper support region 16a that mainly supports the periphery of the occupant's shoulder from the side and a lower support region 16b that mainly supports the periphery of the occupant's waist. And it is comprised so that the said groove part 12a may be provided in the boundary part of each support area | region 14a, 14b, 16a, 16b in each support part 14 and 16, and the boundary part of the center support part 14 and the right and left side support part 16, and the said groove part 12a A fixing member (not shown) for fixing the seat cover SC (see FIG. 6) is disposed at an appropriate position. Here, the seat cover SC is brought into close contact with the outer surface of the pad base 12 by sewing a plurality of skin materials formed in accordance with the shapes of the support portions 14 and 16 (support regions 14a, 14b, 16a and 16b). The seat cover SC is formed in a bag shape, with the seat cover SC covered on the pad base material 12, by pulling the seam allowance of the skin material from the front side into the groove 12 a of the pad base material 12 and fixing it to the fixing member. The pad base 12 can be fixed without slack.

  Further, a headrest mounting portion 18 for attaching a headrest HR that supports the head of the occupant is provided on the upper portion of the pad base 12 (upper portion of the central support portion 14). The headrest mounting portion 18 is provided with stay insertion holes 20 penetrating in the vertical direction so as to be separated from each other in the left and right directions. A support stay HRa extending downward from the headrest HR can be inserted into the stay insertion hole 20 from above. It is configured as follows. The support stay HRa inserted through the stay insertion hole 20 is supported by a stay fixing portion (not shown) provided in the seat frame SF.

  Here, the headrest mounting portion 18 includes a left and right side support portion 16 that extends above the central support portion 14 and faces the left and right side portions of the headrest HR, and a left and right side support portion at the upper portion of the central support portion 14. It is formed in a concave shape that opens forward and upward by a support wall portion 26 provided continuously to the rear end portion of the side support portion 16. That is, the headrest HR can be attached to the headrest mounting portion 18 in a state where the lower side of the headrest HR is accommodated, and the seat pad 10 and the headrest HR form an integrated design shape. As described above, the left and right side support portions 16 are portions having a function of supporting the side of the occupant supported by the headrest HR. In the following description, a portion of the left and right side support portions 16 that forms the headrest mounting portion 18 is connected to the left support wall portion 22 and the right support wall portion 24 and the rear end portions of the left and right side support portions 16. The supporting wall portion 26 to be referred to may be particularly referred to as the rear side supporting wall portion 26. That is, the left support wall portion 22 forms the outer peripheral left side portion of the pad base material 12, and the right support wall portion 24 forms the outer peripheral right side portion of the pad base material 12.

  Here, the outer side surfaces of the left support wall portion 22, the right support wall portion 24, and the rear support wall portion 26 are formed in a rounded curved surface shape that gradually decreases in thickness as it approaches the opening edge of the headrest mounting portion 18. The cross section of the opening edge of the headrest mounting portion 18 is formed to form an acute angle. Further, the front edge portions of the left support wall portion 22 and the right support wall portion 24 are formed to be inclined so as to be separated from each other as they go downward from the upper end portion, and the front opening of the headrest mounting portion 18 has a substantially trapezoidal shape. It is formed to make. Further, the upper edge portions of the left support wall portion 22 and the right support wall portion 24 are formed so as to be slightly closer toward the rear from the front end portion, and the upper edge portion of the rear support wall portion 26 is at the center in the left-right direction. It is formed in an arc shape that slightly protrudes rearward, and a connecting portion 38 of the upper edge portion of the left support wall portion 22 and the right support wall portion 24 and the upper edge portion of the rear support wall portion 26 is formed in an arc shape. It is curved and formed into a continuous curved shape.

  As shown in FIGS. 2 and 3, the reinforcing member 30 is embedded on the outer surface side of the pad base material 12 along the upper edge of the upper periphery of the pad base material 12. It is configured to reinforce and prevent its deformation. The reinforcing member 30 includes a front opening edge (a front end edge of the left support wall portion 22 and a front end edge of the right support wall portion 24) and an upper opening edge (the upper end edge of the left support wall portion 22 and the right side). The upper edge of the support wall 24 and the rear support wall 26 is formed in a curved shape, and is configured to reinforce the outer peripheral edge of the headrest mounting portion 18 and prevent deformation such as buckling.

  Specifically, the reinforcing member 30 of the present embodiment includes a left reinforcing portion 32 and a right reinforcing portion 33 that reinforce the front end edge of the headrest mounting portion 18, and an upper reinforcing portion 44 that reinforces the upper end edge of the headrest mounting portion 18. Provided, and is formed in a curved shape extending from the front edge of the outer peripheral left and right side portion of the headrest mounting portion 18 to the upper edge of the outer peripheral upper portion. Here, the left side reinforcing part 32 extends along the front edge of the left support wall part 22 in the headrest mounting part 18 so as to follow the front edge of the outer peripheral left side part of the pad base material 12, and the right side reinforcing part 33 is a pad. The headrest mounting portion 18 is formed to extend along the front edge of the right support wall portion 24 so as to follow the front edge of the outer peripheral right side portion of the substrate 12. The reinforcing member 30 is configured as a bilaterally symmetric member integrally formed of a synthetic resin such as polypropylene.

  Each of the left side reinforcing part 32 and the right side reinforcing part 33 includes an inner reinforcing wall part 34, an outer reinforcing wall part 36 facing the outside of the inner reinforcing wall part 34, the inner reinforcing wall part 34 and the outer reinforcing part. A front end portion of the wall portion 36 is connected, and a corresponding left side support wall portion 22 and a connecting portion 38 extending along the front end edge of the right side support wall portion 24 are provided. And the wall surface which each inner side reinforcement wall part 34 of the left side reinforcement part 32 and the right side reinforcement part 33 faces the headrest mounting part 18 in the corresponding left side support wall part 22 and the right side support wall part 24 in the state which embedded the reinforcement member 30. The left side reinforcing part 32 and the right side reinforcing part 33 are positioned on the outer surface side of the corresponding left side supporting wall part 22 and right side supporting wall part 24, and the left side reinforcing part 32 and the right side reinforcing part 33 are located on the right side. The continuous portion 38 of the reinforcing portion 33 is configured to be positioned close to the front end edges (outer surfaces) of the corresponding left support wall portion 22 and right support wall portion 24. Moreover, the edge part of the connection part 38 is formed so that it may curve in circular arc shape, and it is comprised so that the rigidity of the said left side reinforcement part 32 and the right side reinforcement part 33 may be improved. Further, a support portion 40 (see FIG. 5) for connecting the inner reinforcing wall portion 34 and the outer reinforcing wall portion 36 is provided between the inner reinforcing wall portion 34 and the outer reinforcing wall portion 36. The reinforcing wall portion 34 and the outer reinforcing wall portion 36 are configured to be prevented from being bent and deformed so as to approach or separate from each other. Thereby, the rigidity in the thickness direction of each of the left support wall portion 22 and the right support wall portion 24 in which the left reinforcement portion 32 and the right reinforcement portion 33 are embedded is increased, and the left support wall portion 22 and the right support wall portion 24 The deformation accompanying the action of force that compresses each from the left and right is prevented. In addition, the rear end portion of the outer reinforcing wall portion 36 is provided with a first curved support portion 42 that is bent in a circular arc shape toward the outer side, and improves the rigidity of the outer reinforcing wall portion 36 to support the left side. The shape stability of the wall portion 22 and the right support wall portion 24 is enhanced.

  The upper reinforcing portion 44 extends along the first upper reinforcing wall portion 46 extending along the upper end edges of the left supporting wall portion 22 and the right supporting wall portion 24 and the upper end edge of the rear supporting wall portion 26. The second upper reinforcing wall portion 48 is formed so as to have a U shape in plan view, and the first upper reinforcing wall portion 46 and the second upper reinforcing wall portion 46 are embedded in a state where the reinforcing member 30 is embedded. The upper reinforcing wall portion 48 is configured to be positioned close to the upper end edge (outer surface) of the corresponding left side supporting wall portion 22, right side supporting wall portion 24 and rear side supporting wall portion 26. In addition, a second curved support portion 50 that is bent in a circular arc shape toward the lower side and folded back is provided at the outer ends of the first upper reinforcing wall portion 46 and the second upper reinforcing wall portion 48. The upper reinforcing portion 44 is increased in rigidity to prevent its deformation.

  As shown in FIGS. 4 and 5, the reinforcing member 30 has a reinforcing support portion 52 provided in the left-right direction that is connected to the rear end portions of the inner reinforcing wall portions 34 of the left-side reinforcing portion 32 and the right-side reinforcing portion 33. It is provided to extend. The reinforcing support 52 is provided with through holes 54 penetrating in the front-rear direction so as to open at a plurality of locations (six locations in the embodiment) spaced in the left-right direction. By foaming and curing in the state of entering the through hole 54, the reinforcing member 30 and the pad base 12 are combined to enhance the integrity of both members.

  In addition, the reinforcing support portion 52 has protrusions 56 protruding forward at a plurality of locations (three locations in the embodiment) spaced apart in the left-right direction, and penetrates the protruding end portions of the protrusions 56 in the front-rear direction. The engagement hole 56a is provided so as to open. In the present embodiment, the protruding portions 56 are provided so as to be positioned at the left and right intermediate portions and the left and right ends of the reinforcing support portion 52, respectively. Then, in a state where the reinforcing member 30 is embedded in the pad base material 12, the engaging hole 56 a of the protruding portion 56 is configured to be exposed on the lower front side of the headrest mounting portion 18, and the decorative member K for decorating the seat The decorative member K can be attached to the pad base 12 by inserting and engaging the engaging portion Ka provided in (see FIG. 6) into the engaging hole 56a from the front side. The decorative member K is engaged by inserting the engaging portion in a state where the opening portion of the seat cover SC formed in accordance with the engaging hole 56a of the protruding portion 56 is inserted.

  Further, on the rear surface side of the reinforcing support portion 52, support pieces 58 and 60 projecting rearward are formed at a plurality of locations (six locations in the embodiment) spaced apart in the left-right direction. In the present embodiment, the support pieces 58 and 60 are provided on the rear surface side of the reinforcing support portion 52 so as to be adjacent to each other on the left and right sides of the protruding portions 56. That is, a pair of first support pieces 58 is provided corresponding to the protrusions 56 located in the middle of the left and right, and a pair of second support pieces corresponding to the protrusions 56 located at the left and right ends. 60 is provided. Each of the support pieces 58 and 60 is provided on the front side of the seat frame SF that supports the seat pad 10, and when the reinforcing member 30 (reinforcing support portion 52) is deformed to bend backward, the pad base The support pieces 58 and 60 are supported by the seat frame SF with the material 12 interposed therebetween, so that the bending deformation is suppressed and the reinforcement member 30 is prevented from being damaged.

  Here, the first support piece 58 is formed in a plate shape extending in the vertical direction of the reinforcing support portion 52, and an arc-shaped recess 58 a is formed in the rear end portion. Here, the arc-shaped recess 58a is formed with a curvature that matches the tube diameter of the metal tube that constitutes the seat frame SF, and when the occupant takes a posture that leans on the seat pad 10, the reinforcing support portion The center portion of 52 is bent rearward, so that the seat frame SF is engaged with the arc-shaped recess 58a of the first support piece 58 with the pad base material 12 interposed therebetween. Further, the second support piece 60 is formed in a plate shape extending in the vertical direction of the reinforcing support portion 52, and is formed in an inclined shape in which the rear end portion is inclined backward as it goes downward. The inclined portion of the second support piece 60 is supported by the seat frame SF with the base material 12 interposed therebetween.

  Next, an outline of the method for manufacturing the seat pad 10 will be described. The seat pad 10 according to the present invention is made of a foam resin material such as urethane resin in a state where the reinforcing members 30 are arranged in a plurality of molds that form cavities that match the shape of the pad base material 12 when the mold is clamped. It is formed by filling the cavity and foaming and curing the foamed resin material. Here, in the mold, the mold surface of the lower mold is formed in a shape matching the front side of the seat pad 10 (pad base 12), and the front of the seat pad 10 (pad base 12) is on the lower side. It is configured so that foam molding is performed in a laying posture facing toward.

  Further, the lower mold is provided with a positioning protrusion that protrudes into the cavity at a position corresponding to the arrangement position of the reinforcing member 30 embedded in the pad base 12 (headrest mounting portion 18). In a state where the mold is opened, the left side reinforcing part 32 and the front edge part (the first curved support part 42 described above) of the right side reinforcing part 33 in the reinforcing member 30 face down to the mold surface of the lower mold. The reinforcing member 30 is arranged at a predetermined position of the cavity by engaging with the positioning protrusion in the posture. After the reinforcing member 30 is positioned at a predetermined position, the mold is closed, and a foamed resin material is filled into the cavity of the mold and foamed and cured, whereby the pad base 12 (headrest mounting portion 18) is reinforced. The seat pad 10 in which 30 is embedded can be integrally formed.

  That is, according to the vehicle seat pad 10 according to the present invention described above, the outer peripheral edge of the pad base 12 is reinforced by embedding the reinforcing member 30 on the outer surface side along the outer peripheral edge of the seat pad 10. 30 and can effectively prevent the outer peripheral edge of the pad base 12 from being deformed during covering. In particular, the rigidity of the upper side of the pad base 12 can be increased by forming the reinforcing member 30 in a shape extending from the front edge of the outer peripheral left and right sides of the pad base 12 to the upper edge of the outer peripheral upper part. it can. Further, it is possible to prevent deformation by ensuring the necessary rigidity on the outer peripheral edge of the pad base material 12 without forming the pad base material 12 with a high-density foam. Furthermore, since the reinforcing member 30 is embedded in the pad base material 12, there is no need for a step of attaching a member for preventing deformation of the pad base material 12 to the pad base material 12 in a subsequent process, and work efficiency. As a result, the quality can be maintained at a high level.

  Further, by embedding the reinforcing member 30 so as to be positioned on the outer surface side of the pad base material 12, rigidity can be ensured and shape stability can be maintained even if the thickness of the pad base material 12 is reduced. That is, even when the thin portion of the headrest mounting portion 18 is formed in order to realize the design integrity with the headrest HR, like the seat pad 10 according to the present invention, the front opening edge of the headrest mounting portion 18 and By embedding the reinforcing member 30 formed in a shape that follows the upper opening edge, the rigidity of the headrest mounting portion 18 can be secured, and the seat pad 10 can be designed in various ways while improving the shape retention of the headrest mounting portion 18. Can be easily realized.

  Moreover, the torsional rigidity of the reinforcing member 30 can be increased by connecting the left reinforcing portion 32 and the right reinforcing portion 33 of the reinforcing member 30 with the reinforcing support portion 52. Further, the reinforcing member 30 (reinforcing support portion 52) is embedded at a position corresponding to the front side of the seat frame SF that supports the seat pad 10, and support pieces 58 and 60 are formed on the reinforcing member 30 (reinforcing support portion 52). Then, when the reinforcing member 30 is deformed so as to bend backward, the supporting pieces 58 and 60 are supported by the seat frame SF via the pad base material 12, thereby deforming the reinforcing member 30. Since it can suppress and prevent a damage etc., the reinforcement effect of the pad base material 12 by the reinforcement member 30 is not impaired. Further, when the center part of the reinforcing support part 52 bends backward, such as when the occupant leans against the seat pad 10, the seat frame SF is the first support with the pad base material 12 interposed therebetween. By engaging with the arc-shaped recess 58a of the piece 58, the embedded reinforcing member 30 is held at a predetermined position of the pad base 12 and the problem that the reinforcing member 30 is displaced within the pad base 12 is effective. Can be prevented.

  Further, by providing the second support pieces 60 so as to be positioned on the left and right end sides of the reinforcing member 30, the side support portion 16 of the seat pad 10 (the left support wall portion 22 and the right support wall portion 24 of the headrest mounting portion 18). ) Is pushed backward, the second support piece 60 is supported by the seat frame SF via the pad base material 12 and the deformation of the reinforcing member 30 is suppressed, so that the side support portion The deformation of 16 can be suppressed, and the shape retainability of the side support portion 16 can be improved. Furthermore, by providing the support pieces 58 and 60 corresponding to the protruding portions 56 of the reinforcing member 30, the engaging portions Ka provided on the decorative member K for decorating the sheet are engaged with the engaging holes 56a provided in the protruding portions 56. The reinforcing member 30 is supported by the seat frame SF when inserted from the front side, and the engaging portion Ka can be easily engaged with the engaging hole 56a.

(Example of change)
The vehicle seat pad according to the present invention is not limited to the embodiment illustrated in the embodiments, and various modifications can be made. Below, an example of a modification is shown.
(1) Although the seat pad used for the seat back of the vehicle seat is taken as an example, the seat pad is not limited to this and may be a seat pad used for a seat cushion on which an occupant is seated.
(2) The reinforcing members do not need to be formed symmetrically, and may be formed in a shape that follows the outer peripheral edge of the pad base material. In addition, the reinforcing member is formed so as to follow the outer peripheral front edge of the pad base material, but the reinforcing member is formed so as to follow the outer peripheral rear edge of the pad base material and is reinforced on the outer surface side of the pad base material along the rear edge. You may make it embed a member.
(3) Although the reinforcing member is integrally formed of synthetic resin, it may be formed of metal or the like, or a plurality of members may be combined to form the reinforcing member.

12 pad base material, 18 headrest mounting part,
22 Left side support wall (outer left side of pad base)
24 right support wall (outer right side of the pad base), 30 reinforcing member, 32 left reinforcing part 33 right reinforcing part, 52 reinforcing support part, 58 first support piece (support piece),
60 Second support piece (support piece), SF seat frame

Claims (5)

In a vehicle seat pad in which a pad base material is formed of a foamed resin member,
A vehicle seat pad, wherein a reinforcing member formed so as to follow the curved outer peripheral edge of the pad base material is embedded on the outer surface side of the pad base material along the outer peripheral edge. On the upper part of the pad base material, a headrest mounting part formed in a concave shape that opens upward and forward is provided,
2. The vehicle seat pad according to claim 1, wherein the reinforcing member formed in a shape that follows a front opening edge and an upper opening edge of the headrest mounting portion is embedded in the headrest mounting portion.   The vehicle seat pad according to claim 1, wherein the reinforcing member is formed so as to extend from a front edge of an outer peripheral left and right side portion of the pad base material to an upper edge of the upper outer periphery.   The reinforcing member is configured to connect a left side reinforcing portion that follows the front edge of the outer peripheral left side portion of the pad base material and a right side reinforcing portion that follows the front edge of the outer peripheral right side portion of the pad base material with a reinforcing support portion. The vehicle seat pad according to any one of claims 1 to 3.   The reinforcing support portion is provided on the front side of a seat frame that supports the pad base material, and support pieces that protrude rearward are formed at a plurality of positions spaced apart in the left and right in the reinforcing support portion. The vehicle seat pad according to claim 4, wherein the support piece is configured to be supported by a seat frame through a material.

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