JP2010273963A - Sheet pad - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet pad including a sheet pad body formed of soft foam resin and a second member disposed on the back of the sheet pad body, preventing generation of abnormal sound due to sliding contact of the another member with a sheet frame and the like, and fixing the sheet pad body and the second member to each other more surely than before. <P>SOLUTION: This sheet pad includes a sheet pad body made of soft foam resin, and the second member disposed on the back of the sheet pad body. A cloth-like interposing material having permeability to the soft foam resin is stuck to at least part of the outer peripheral surface of the second member, and at least part of the second member to which the cloth-like interposing material is stuck and at least part of the back of the sheet pad body are covered with a supporter material. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a seat pad suitable as a vehicle seat pad, and more particularly to a seat pad including a seat pad main body made of a soft foamed resin and another member disposed on the back side of the seat pad main body.

  A vehicle seat pad used for an automobile or the like is usually made of a soft foamed resin such as polyurethane foam. However, in Patent Document 1, a polyurethane foam is used on the back surface of a side support portion of a seat pad body portion made of polyurethane foam. A urethane sheet pad fitted with a lightweight polystyrene foam (separate member) is described. Patent Document 2 describes a cushion pad in which a polyethylene foam (separate member) is held as an insert material inside a mold and polyurethane foam is foamed to form a pad of different hardness.

  In the seat pad in which another member is fitted to the back surface as in Patent Document 1, an abnormal noise is generated when the separate member is in sliding contact with the seat frame or the like. Note that foamed polystyrene and foamed polyethylene, which are separate members, are more likely to generate abnormal noise due to sliding contact than soft foamed resin.

  In the seat pad described in Patent Document 2, a cross-sectional view in which another member is surrounded by a soft foamed resin is disclosed, and the separate member does not slidably contact with the seat frame or the like so that no abnormal noise is generated. However, there is no description on how to mold another soft foamed resin by holding another member inside the mold.

  Further, the adhesion between the separate member and the soft foam resin is weak, and the conventional seat pad has a problem that the separate member is easily detached from the seat pad body made of the soft foam resin depending on the shape of the separate member.

JP-A-5-57069 Japanese Patent Laid-Open No. 1-249312

  The present invention is a seat pad comprising a seat pad body made of a soft foam resin and another member disposed on the back side of the seat pad body, and abnormal noise is caused by sliding contact between the other member and the seat frame or the like. An object of the present invention is to provide a seat pad that does not occur and the seat pad main body and the separate member are more securely fixed than before.

  The present inventors diligently studied the structure of the seat pad in order to achieve the above object. As a result, noise is not generated by providing a supporter material in a portion where a separate member and a seat frame or the like have conventionally been in sliding contact, and a cloth-like intervention material that is permeable to soft foam resin The sheet pad body and the separate member can be fixed more than before by foaming a soft foamed resin using the separate member with the cloth-like intervening material attached as an insert material. Found to be sure.

  The present invention has been further improved based on the above findings, and the gist of the present invention is as follows.

(1) a seat pad body made of a soft foam resin;
Another member disposed on the back side of the seat pad body;
In a seat pad comprising
At least a part of an outer peripheral surface of the separate member is pasted with a cloth-like interstitial material into which the soft foam resin can permeate, and at least a part of the separate member to which the cloth-like interstitial material is pasted and a seat pad A seat pad, wherein at least a part of the back side of the main body is covered with a supporter material.

(2) The first type soft resin introduction portion that is in contact with both the separate member and the supporter material locally at at least one location of the separate member, and locally at at least one location of the cloth-like interposing material. The seat pad according to (1) above, which has at least one of a second type soft resin introduction portion in contact with both the cloth-like interposing material and the supporter material.

(3) The separate area of the total area S1 of the area of the portion where the supporter material is in contact with the first type soft foam resin introduction portion and the area of the portion where the support material is in contact with the second type soft foam resin introduction portion The seat pad according to (1) or (2) above, wherein the ratio S1 / S2 of the member to the area S2 of the surface facing the supporter material is 5 to 95%.

(4) The seat pad according to any one of (1) to (3), wherein the cloth-like interposing material is a nonwoven fabric with an adhesive.

(5) The seat pad according to any one of (1) to (4), wherein the separate member has a recess on a back surface side of the seat pad main body.

(6) The seat pad according to (5), wherein the separate member has a locking hole into which a protrusion provided on the molding die of the seat pad is inserted in the bottom surface of the recess.

(7) The seat pad according to (5) or (6) above, wherein the supporter material has a through-hole through which the protrusion is inserted, and extends along both the side surface and the bottom surface of the recess.

(8) a seat pad body made of a soft foam resin;
Another member disposed on the back side of the seat pad body;
With
At least a part of an outer peripheral surface of the separate member is pasted with a cloth-like interstitial material into which the soft foam resin can permeate, and at least a part of the separate member to which the cloth-like interstitial material is pasted and a seat pad In a mold for forming a seat pad in which at least a part of the back side of the main body is covered with a supporter material,
Corresponding to a recess provided on the back surface side of the seat pad main body of the separate member, a pedestal portion for fitting the recess into the cavity surface of the mold,
A protrusion protruding further from the pedestal portion toward the cavity of the mold, and locking the separate member to the inner surface of the mold;
A seat pad mold having the inner surface of the mold.

  According to the invention of (1) above, the separate member and the seat frame and the like are in sliding contact with each other via the supporter material, so that the generation of abnormal noise can be prevented, and the cloth-like interposing material is used as the separate member. A part that secures the adhesion between the cloth-like interposition material and the other member by adhering, and the soft foam resin penetrates the cloth-like interposition material to ensure the adhesion between the soft foam resin and the cloth-like interposition material. By providing at least a part of the outer peripheral surface of the separate member, the seat pad main body and the separate member can be more securely fixed than in the prior art. In particular, even when the separate member has a shape that does not strongly interfere with the seat pad main body, the seat pad main body and the separate member can be reliably fixed.

  According to the invention of (2) above, for the supporter material that does not adhere to the separate member, the first type soft foamed resin introduction portion that is in contact with both the separate member and the supporter material is locally disposed in at least one location of the separate member. By providing, the supporter material can be bonded and fixed at this first type soft foam resin introduction portion, and the supporter material that does not adhere to the cloth-like intervention material, The support material can be bonded and fixed at the second type soft foam resin introduction portion by locally providing the second type soft foam resin introduction portion in contact with both at least one place of the cloth-like interposing material. Therefore, the work that attaches the seat pad to the seat frame, such as when the edge of the supporter material undulates or the supporter material hangs down in the bag shape on the surface where the other member faces the supporter material and its periphery, etc. It can be prevented from being damaged supporter material corrugation portion and a bag shape hanging portion of the supporter material hooking the components such as the seat frame when cormorants. In addition, since the first type soft foam resin introduction portion and the second type soft foam resin introduction portion are locally provided, when the seat pad is molded, the first type soft foam resin introduction portion and Since the portion where the second type soft foam resin introduction portion is not provided is in contact with the surface of the seat pad molding die through the supporter material, another member can be positioned inside the molding die, Another member with the interstitial material attached can be embedded on the back side of the seat pad main body with high accuracy.

  According to the invention of the above (3), it is particularly advantageous for preventing the supporter material from sagging even when a seat pad having a specification with a wide area facing the supporter material is required. . In this case, the supporter material of another member having a total area S1 of the area of the portion where the supporter material is in contact with the first type soft foamed resin introduction portion and the area of the portion where the supporter material is in contact with the second type soft foamed resin introduction portion. When the ratio S1 / S2 to the area S2 of the surface facing the surface exceeds 95%, when another member is placed on the seat pad mold and foamed, it is directly with the other member or indirectly through a cloth-like interposing material. The area in contact with the surface of the seat pad molding die is reduced, and the positioning accuracy of the separate member is lowered. As a result, the embedded position accuracy of the separate member disposed on the molded seat pad is lowered. Further, when the ratio S1 / S2 exceeds 95%, the first type soft foam resin introduction portion and the second type soft foam resin introduction portion occupy many parts in the separate member. Depending on the thickness, the durability of the separate member decreases, and this tendency is particularly notable when the separate member is made of foamed styrene which is easily broken. On the other hand, when the ratio S1 / S2 is less than 5%, the supporter material is widened in the first type soft foam resin introduction portion and the second type soft foam resin introduction portion that are not fixed to different members, and the support material This is not preferable because it is easy to cause undulations at the end of the sack and sagging of the bag of the supporter material. Therefore, the ratio S1 / S2 is preferably in the range of 5 to 95%. More preferably, it is 20 to 60%.

  According to the invention of the above (4), the cloth-like interstitial material is made into a non-woven fabric with an adhesive, so that it is easy to attach the cloth-like interstitial material to another member because it is with an adhesive. Therefore, by increasing the permeability of the soft foam resin to the cloth-like interstitial material, the adhesion between the soft foam resin and the cloth-like interstitial material is further increased. You can be sure.

  According to the invention of (5) above, the soft foam resin is foamed by engaging the concave portion provided on the back side of the seat pad body of the separate member with the portion corresponding to the concave portion provided in the seat pad mold. By forming, it is possible to prevent positional deviation of another member during foam molding.

  According to the invention of (6) above, by inserting the protrusion provided on the seat pad molding die into the locking hole provided on the bottom surface of the recess, the other member can be firmly held on the seat pad molding die, The positional accuracy of the separate member with respect to the seat pad body can be further improved.

  According to the invention of (7) above, since the protrusion provided on the seat pad mold can be inserted into the through hole of the supporter material, the positional accuracy with respect to the seat pad body of another member can be improved, and Even if there is a protrusion such as a nut on the seat frame or the like because the support material is along both the side surface and the bottom surface of the recess, the separate member and the protrusion Is in sliding contact with the supporter material, so that the generation of abnormal noise can be prevented.

  According to the invention of (8), the noise generated by the sliding contact between the separate member and the seat frame or the like is prevented, the seat pad main body and the separate member are fixed more securely than before, and the seat pad A seat pad having a high positional accuracy of another member relative to the main body can be foam-molded.

It is a top view of the seat cushion pad concerning a 1st embodiment of the present invention. It is sectional drawing which follows the II line | wire of FIG. It is an enlarged view of the right side support part in FIG. FIG. 3 is an explanatory diagram showing an arrangement interval of the first type soft foam resin introduction portion and the second type soft foam resin introduction portion viewed from the back side of the seat cushion pad with the supporter material omitted in the right side support portion of FIG. 2. It is an enlarged view of the left side support part in FIG. FIG. 3 is an explanatory diagram showing an arrangement interval of a first type soft foam resin introduction portion and a second type soft foam resin introduction portion as viewed from the back side of the seat cushion pad with the supporter material omitted in the left side support portion of FIG. 2. It is an enlarged view of the left side support part in FIG. 2 when the first type soft foam resin introduction portion and the second type soft foam resin introduction portion are stepped. It is a cross-sectional view of the shaping | molding die concerning 1st Embodiment of this invention which shape | molds the said seat cushion pad. FIG. 9 is an enlarged view around the right side support portion of the mold shown in FIG. 8. FIG. 9 is an enlarged view around the left side support portion of the mold shown in FIG. 8. It is a front view of the seat back pad concerning a 2nd embodiment of the present invention. It is sectional drawing which follows the II-II line of FIG. It is an enlarged view of the upper part of FIG. It is explanatory drawing which shows the arrangement | positioning space | interval of the soft foam resin introduction part which abbreviate | omitted the supporter material and was seen from the cavity part side of the seat back pad. It is sectional drawing which follows the III-III line of FIG. It is sectional drawing which follows the IV-IV line of FIG. It is a longitudinal cross-sectional view of the metal mold | die which concerns on 2nd Embodiment of this invention for shaping | molding of the said seat back pad. It is a cross-sectional view of the metal mold | die along the VV line | wire of FIG. 11 which concerns on 2nd Embodiment of this invention for shaping | molding of the said seat back pad.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a seat cushion pad as a first embodiment of the seat pad of the present invention. In addition, the code | symbol 1 in a figure shows the seat cushion pad of 1st Embodiment. 2 is a cross-sectional view taken along the line II of FIG. In addition, the lower side in FIG. 2 shows the back side of a seat cushion pad. FIG. 3 is an enlarged view of the right side support portion in FIG. 4 illustrates the side support portion of FIG. 3 from the back side of the seat cushion pad 1 with the supporter material omitted, in order to explain the arrangement interval between the first type soft foam resin introduction portion and the second type soft foam resin introduction portion. It is explanatory drawing seen. FIG. 5 is an enlarged view of the left side support portion in FIG. FIG. 6 is a view of the side support portion of FIG. 5 from the back side of the seat cushion pad 1 with the supporter material omitted, in order to explain the arrangement interval of the first type soft foam resin introduction portion and the second type soft foam resin introduction portion. FIG. FIG. 7 is an enlarged view of the left side support portion in FIG. 2 when the first type soft foam resin introduction portion and the second type soft foam resin introduction portion are stepped.

  The seat cushion pad 1 has a thigh lower part 2, a bottom part 3, and left and right side support parts 4. On the upper surface of the seat cushion pad 1, a front and rear direction hanging groove 5 and a width direction hanging groove 6 for hanging a skin material (not shown) are provided so as to have an H shape. .

  The seat cushion pad 1 includes a seat cushion pad body 10, a separate member 20 provided on the back surface of the right side support portion 4 of the seat cushion pad body 10, and a back surface of the left side support portion 4 of the seat cushion pad body 10. And another member 25 provided.

  The seat cushion pad main body 10 may be made of any material as long as it is made of a soft foamed resin, but is made of polyurethane foam in the present embodiment. The separate member 20 and the separate member 25 are made of foamed polystyrene (foamed polystyrene), but may be foamed polyethylene or the like.

As shown in FIGS. 3 and 5, the cloth-like interposing material 35 is attached to the outer peripheral surfaces of the separate member 20 and the separate member 25. As the cloth-like interposing material 35, any material can be used as long as the soft foamed resin that is the material of the seat cushion pad main body 10 can permeate, but a basis weight: 10 to 300 g / m ² of polypropylene, polystyrene, A nonwoven fabric made of at least one raw material selected from polyethylene terephthalate, acrylic, wool, rayon, polyester and nylon is preferred. The thickness of the cloth-like interposing material 35 is preferably in the range of 0.2 to 1.0 mm, and more preferably in the range of 0.4 to 0.6 mm. The cloth-like interposing material 35 is attached to the outer peripheral surfaces of the separate members 20 and 25 using an adhesive. The adhesive is preferably an acrylic polymer. Moreover, the nonwoven fabric with an adhesive agent can also be used, for example, YN-40A and YN-70A of Bridgestone Corporation are suitable. In addition, the cloth-like interposing material 35 of this embodiment is YN-40A and YN-70A having a thickness of 0.6 mm.

  In this way, by adhering the cloth-like intervention material 35 to the outer peripheral portion of the separate member 20 and the separate member 25, the adhesion between the cloth-like intervention material 35 and the separate member 20 and the separate member 25 is secured, and further, the seat cushion A soft foam resin, which is a material of the pad main body 10, is infiltrated into the cloth-like interposing material 35 during foam molding to ensure adhesion between the soft foam resin and the cloth-like interposing material 35. The fixing with the member 25 can be made more reliable than when the conventional cloth-like intervention material is not attached. It is to be noted that the cloth-like interstitial material 35 can be secured to the seat cushion pad main body 10 and the separate members 20 and 25 more securely when attached to the widest possible surface of the outer periphery of the separate member 20 and the separate member 25. Is preferable.

The back surfaces of the separate members 20 and 25 to which the cloth-like interposing material 35 is attached are covered with a supporter material 30 made of a sheet-like nonwoven fabric. Further, the supporter material 30 also covers portions of the back surface of the seat pad main body 10 that are adjacent to the separate members 20 and 25 to which the cloth-like interposing material 35 is attached. Thus, since the back side of the separate members 20 and 25 to which the cloth-like interposing material 35 is attached is covered with the supporter material, the separate member 20 and the separate member 25, the seat frame, etc. Is slidably contacted via the supporter material 30 without directly slidably contacting, so that generation of abnormal noise can be prevented. The support material 30 is preferably a non-woven fabric made of at least one raw material selected from polypropylene, polyethylene, polyethylene terephthalate, acrylic resin, wool, rayon and polyester having a basis weight of 10 to 300 g / m ² . The thickness of the supporter material 30 is preferably in the range of 0.2 to 1.0 mm, and more preferably in the range of 0.4 to 0.6 mm.

  As shown in FIG. 3, a concave portion 21 is provided on the back surface side of the separate member 20 to which the cloth-like interposing material 35 is attached, and the supporter material 30 is along the surface of the concave portion 21. That is, the supporter material 30 overlaps both the side surface and the bottom surface of the recess 21. A locking hole for inserting a projection 57 to be described later may be provided on the bottom surface of the recess 21. In addition, you may insert the protrusion 57 in the another member 20 which affixed the cloth-like interposing material 35, without providing this latching hole.

  Further, as shown in FIG. 5, a recess 26 is provided on the back side of the separate member 25 to which the cloth-like interposing material 35 is attached, and the supporter material 30 is along the surface of the recess 26. That is, the supporter material 30 overlaps both the side surface and the bottom surface of the recess 26. You may provide the hole for inserting the processus | protrusion 59 mentioned later in the bottom face of the recessed part 26. FIG. In addition, you may insert the processus | protrusion 59 in the separate member 25 which affixed the cloth-like intervention material 35, without providing a hole.

  Here, when the separate member 20, the supporter material 30, and the cloth-like interposing material 35 are the above materials, between the separate member 20 and the supporter material 30 and between the supporter material 30 and the cloth-like interposition material 35. Does not adhere to. Therefore, as shown in FIG. 3 and FIG. 4, the first type soft foamed resin introduction portion for the portion to which the cloth-like interposing material 35 is not attached is made of a polyurethane foam locally introduced into the separate member 20. 40 and the second type soft foamed resin introduction portion 41 for the portion to which the cloth-like interposing material 35 is attached are provided. As a result, in the member 20 where the cloth-like interposing material 35 is not affixed, the separate member 20 and the first type soft foam resin introduction portion 40 are bonded and the first type soft foam resin is introduced. By bonding the portion 40 and the supporter material 30, the supporter material 30 is fixed to the separate member 20, and the separate member 20 and the second kind soft material are attached to the portion where the cloth-like interposing material 35 is attached. The support material 30 is bonded to the separate member 20 by bonding the foam resin introduction portion 41 via the cloth-like interposing material 35 and bonding the second type soft foam resin introduction portion 41 and the support material 30. It is fixed via the intervening material 35. If neither the first type soft foamed resin introduction portion 40 nor the second type soft foamed resin introduction portion 41 exists, the support member 30 has a portion 31a away from the seat cushion pad main body 10 and a terminal portion 31b. In the meantime, since there is no means for fixing the support material 30 to the separate member 20, the supporter material 30 hangs down in a bag shape between the part 31a and the part 31b.

  Since the first type soft foam resin introduction portion 40 and the second type soft foam resin introduction portion 41 function to fix the supporter material 30 to the separate member 20 to which the cloth-like interposing material 35 is attached, It is not necessary to provide it in the whole surface between the separate member 20 and the supporter material 30 to which the interposing material 35 is attached, and it may be provided locally. In addition, the first-type soft foam resin introduction portion 40 and the second-type soft foam resin introduction portion 41 are locally provided between the separate member 20 to which the cloth-like interposing material 35 is attached and the supporter material 30. When the seat cushion pad 1 is molded, the surface where the first type soft foam resin introduction portion 40 and the soft foam resin introduction portion 41 are not provided is brought into contact with the surface of the molding die via the supporter material 30. In order to position and arrange the separate member 20 on which the cloth-like interposing material 35 is attached to the molding die, it is preferable.

  Next, the arrangement interval and the size of the first type soft foam resin introduction portion 40 and the second type soft foam resin introduction portion 41 will be described with reference to FIG. In FIG. 4, three first type soft foamed resin introduction portions 40a, 40b, and 40c and three second type soft foam resin introduced portions 41a, 41b, and 41c are shown. However, the number is not limited to these numbers. Absent. The first type soft foamed resin introduction portions 40 a to 40 c are formed in a rod shape so as to contact both the separate member 20 and the supporter material 30. The second type soft foamed resin introduction portions 41 a to 41 c are formed in a rod shape so as to come into contact with both the cloth-like interposing material 35 and the supporter material 30. The size of each of the first type soft foam resin introduction portions 40a to 40c and the second type soft foam resin introduction portions 41a to 41c is preferably a cube or a rectangular parallelepiped having a side length of 10 mm or more. It does not necessarily have to be a straight line, and each angle need not necessarily be a right angle.

  Further, the second type soft foamed resin introduction portion 41 may be formed so as to surround the recesses 21a and 21c as shown in the second type soft foam resin introduction portions 41a and 41b in FIG. You may form without including the recessed part 21, as shown to the soft foamed resin introduction part 40c. Here, for example, since the recess 21a is surrounded by the second type soft foam resin introduction portion 41a, the support material 30 is bonded to the second type soft foam resin introduction portion 41a, that is, a part of the polyurethane foam on the side surface of the recess 21a. Therefore, such a recess 21a is preferable in that the supporter material 30 does not peel in the recess 21a as compared to the recess 21b not surrounded by the second type soft foam resin introduction portion 41. In the present embodiment, an example in which the first type soft foam resin introduction portion 40 is formed so as to surround the recess 21 is not shown, but the first type soft foam resin introduction portion 41 is similar to the case of the second type soft foam resin introduction portion 41. By forming the soft foamed resin introduction portion 40 so as to surround the recess 20, it is possible to prevent the supporter material 30 from peeling off in the recess 20.

  And 1st type soft foamed resin introduction part 40a-40c and 2nd type soft foamed resin introduction part 41a-41c are arrange | positioned at the space | interval of the distance L1 in FIG. 4, for example. For the distance L1, the supporter material of the separate member 20 having a total area S1 of the portion in contact with the supporter material 30 for each of the first type soft foam resin introduction portions 40a to 40c and the second type soft foam resin introduction portions 41a to 41c. What is necessary is just to determine so that ratio S1 / S2 with respect to area S2 of the surface which faces 30 may be 5 to 95% of range. Further, the distance L1 does not need to be constant. For example, the interval between the first type soft foam resin introduction portion 40a and the first type soft foam resin introduction portion 40b is different from the interval between the first type soft foam resin introduction portion 40b and the first type soft foam resin introduction portion 40c. May be. In the present embodiment, the ratio S1 / S2 is 20%. When the ratio S1 / S2 is less than 5%, the supporter material 30 hangs down. On the other hand, when the ratio S1 / S2 exceeds 95%, the seat cushion pad body of the separate member 20 to which the cloth-like interposing material 35 is attached. The positional accuracy with respect to 10 tends to be low.

  The same applies to the left side support portion 4, and when the separate member 25, the supporter material 30, and the cloth-like interposing material 35 are made of the above materials, and between the separate member 25 and the supporter material 30 and the supporter material 30. The cloth-like interposing material 35 is not bonded. Therefore, as shown in FIG. 5 and FIG. 6, the first type soft foamed resin introduction portion for the portion to which the cloth-like interposing material 35 is not attached, which is made of polyurethane foam locally introduced into the separate member 25. 42 and the second type soft foamed resin introduction portion 43 for the portion to which the cloth-like interposing material 35 is attached are provided. As a result, in the separate member 25, the separate member 25 and the first type soft foam resin introduction portion 42 are bonded to each other at the portion where the cloth-like interposing material 35 is not attached, and the first type soft foam resin introduction portion 42 is attached. 42 and the supporter material 30 are bonded to each other so that the supporter material 30 is fixed to the separate member 25, and the separate member 25 and the second type soft foam resin are attached to the portion where the cloth-like interposing material 35 is attached. The introduction portion 43 is bonded to the support member 30 via the cloth-like interposing material 35 and the second type soft foamed resin introduction portion 43 and the supporter material 30 are bonded to each other, so that the supporter material 30 is attached to the separate member 25 in the form of cloth. It is fixed via the dressing 35. When neither the first type soft foam resin introduction portion 42 nor the second type soft foam resin introduction portion 43 exists, the space between the portion 32b away from the seat cushion pad body 10 and the end portion 32a in the support member 30 is Since there is no means for fixing the support material 30 to the separate member 25 to which the cloth-like interposing material 35 is attached, the supporter material 30 hangs down in a bag shape between the part 32a and the part 32b.

  Since the first type soft foam resin introduction portion 42 and the second type soft foam resin introduction portion 43 serve to fix the supporter material 30 to the separate member 25 to which the cloth-like interposing material 35 is attached, It is not necessary to provide it on the entire surface between the separate member 25 to which the interstitial material 35 is attached and the supporter material 30, and it may be provided locally. In addition, the first type soft foam resin introduction portion 42 and the second type soft foam resin introduction portion 43 are locally provided between the separate member 25 to which the cloth-like interposing material 35 is attached and the supporter material 30. When the seat cushion pad 1 is molded, the surface on which the first type soft foam resin introduction portion 42 and the second type soft foam resin introduction portion 43 are not provided is brought into contact with the surface of the molding die via the supporter material 30. By doing so, it is preferable to position and arrange the separate member 25 to which the cloth-like interposing material 35 is attached to the molding die.

  Next, the arrangement interval and the size of the first type soft foam resin introduction portion 42 and the second type soft foam resin introduction portion 43 will be described with reference to FIG. In FIG. 6, three first type soft foamed resin introduction portions 42a, 42b, and 42c and three second type soft foam resin introduced portions 43a, 43b, and 43c are shown. However, the number is not limited to these numbers. Absent. The first type soft foamed resin introduction portions 42a to 42c are separate members so as to be in contact with both the separate member 25 and the supporter material 30 outside the center of the seat pad main body 10 on the back side end surface of the separate member 25. 25 is formed in a wedge shape toward the inside. The second type soft foamed resin introduction portions 43a to 43c are in contact with both the cloth-like interposing material 35 and the supporter material 30 inside the center of the seat pad main body 10 on the back side end surface of the separate member 25. , Formed in a wedge shape toward the inside of the separate member 25. The size of each of the first type soft foam resin introduction portions 42a to 42c and the second type soft foam resin introduction portions 43a to 43c is preferably a wedge shape having a side length of 10 mm or more. It need not be a straight line. Further, the first type soft foam resin introduction portions 42a to 42c and the second type soft foam resin introduction portions 43a to 43c may have a step shape as shown in FIG. 7 in addition to the wedge shape.

  Further, the first type soft foam resin introduction portion 42 and the second type soft foam resin introduction portion 43 are, for example, the first type soft foam resin introduction portions 42a and 42b and the second type soft foam resin introduction portion 43a in FIG. 43b may be formed so as to be in contact with the recesses 26a, 26b, or may not be in contact with the recess 26c as shown in the first type soft foam resin introduction portion 42c and the second type soft foam resin introduction portion 43c. You may form in. Here, since the recesses 26a and 26b are in contact with the first type soft foam resin introduction portions 42a and 42b and the second type soft foam resin introduction portions 43a and 43b, the support material 30 is formed on the side surfaces of the recesses 26a and 26b. Since the first type soft foamed resin introduction portions 42a and 42b and the second type soft foam resin introduced portions 43a and 43b, that is, a part of the polyurethane foam, are bonded, such recesses 26a and 26b are provided with the first type soft foam resin introduced. This is preferable in that the supporter material 30 does not peel off in the recesses 26a and 26b, compared to the recess 26c that does not contact the portion 42c and the second type soft foam resin introduction portion 43c.

  And 1st type soft foamed resin introduction part 42a-42c and 2nd type soft foamed resin introduction part 43a-43c are arrange | positioned at the space | interval of the distance L2 in FIG. 6, for example. As for the distance L2, the supporter material of the separate member 25 having a total area S1 of the portion in contact with the supporter material 30 for each of the first type soft foam resin introduction portions 42a to 42c and the second type soft foam resin introduction portions 43a to 43c. What is necessary is just to determine so that ratio S1 / S2 with respect to area S2 of the surface which faces 30 may be 5 to 95% of range. Further, the distance L2 does not need to be constant. For example, the interval between the first type soft foam resin introduction portion 42a and the first type soft foam resin introduction portion 42b is different from the interval between the first type soft foam resin introduction portion 42b and the first type soft foam resin introduction portion 42c. May be. In the present embodiment, the ratio S1 / S2 is 20%. When the ratio S1 / S2 is less than 5%, the supporter material 30 hangs down. On the other hand, when the ratio S1 / S2 exceeds 95%, the seat cushion pad body of the separate member 25 to which the cloth-like interposing material 35 is attached. The positional accuracy with respect to 10 tends to be low.

  Next, a method for forming the seat cushion pad 1 will be described. FIG. 8 is a cross-sectional view of a mold as a mold according to the first embodiment of the present invention for molding the seat cushion pad 1, and FIG. 9 is an enlarged view around the right side support portion of the mold shown in FIG. It is. FIG. 10 is an enlarged view around the left side support part of the mold shown in FIG. Reference numeral 50 in the figure denotes the mold of the first embodiment.

  The mold 50 includes an upper mold 51 and a lower mold 52. From the lower mold 52, a ridge 53 for forming the suspending groove 5 and a ridge (not shown) for forming the suspending groove 6 are provided upright. Between the ridges 53 is a cavity part 54 for forming the thigh lower part 2 and the bottom part 3, and outside the ridges 53 is a cavity part 55 for forming the side support part 4.

  As a holding means for holding the separate member 20, as shown in FIG. 9, a pedestal portion 56 is provided on the mold ceiling surface facing the cavity portion 55 of the upper die 51, and the pedestal portion 56 is provided below the pedestal portion 56. A protrusion 57 is provided. The protrusion 57 has a narrow neck portion on the base end side (the pedestal portion 56 side), and the diameter gradually increases from the neck portion to the lower side, and the lower side from the maximum diameter portion is the tip. It has a pointed shape in which the diameter decreases toward the (lower end).

  Similarly, as shown in FIG. 10, as a holding means for holding the separate member 25, a pedestal portion 58 is provided on the mold ceiling surface of the upper mold 51 facing the cavity portion 55, and this pedestal portion 58 is provided. A projection 59 projects downward from the projection. The protrusion 59 has a narrow neck portion on the base end side (the pedestal portion 58 side), and the diameter gradually increases from the neck portion to the lower side to become the maximum diameter portion. It has a pointed shape in which the diameter decreases toward the (lower end).

  In order to perform foam molding of the seat cushion pad 1, first, the supporter material 30 is disposed along the lower surface of the upper mold 51, temporarily fixed with a double-sided tape or the like, and then a release agent is sprayed into the mold 50. . It should be noted that magnetic fibers are mixed into the supporter material 30, and a magnetic piece such as a wire is fastened to the supporter material 30 with a tape or the like, and a magnet is provided on the upper mold 51, so that the peripheral portion of the supporter material 30 is provided. The upper mold 51 may be magnetically attracted and held.

  The separate member 20 and the separate member 25 are previously pasted with a cloth-like interposing material 35 on the outer peripheral portion thereof. The affixing may be performed by applying an adhesive to the separate members 20 and 25 and affixing the cloth-like interposing material 35, or by adhering the cloth-like interposing material 35 with an adhesive. In the present embodiment, the cloth-like interposing material 35 with an adhesive is attached. Further, the separate member 20 and the separate member 25 are materials that are dissolved by a release agent containing a solvent, but since the cloth-like intervention material 35 is insoluble in the release agent, the cloth-like intervention material When 35 is affixed to the entire outer periphery of the separate member 20 and the separate member 25, the separate member 20 and the separate member 25 are melted even if the release agent is sprayed with the separate member attached to the mold 50. Therefore, even if the mold 50 is opened without foaming for some reason and the release agent is sprayed again, foaming can be normally performed.

  In order to form the first type soft foamed resin introduction portions 40 and 42, the separate members 20 and 25 are provided with rod-like grooves and wedge-like grooves, but after these rod-like grooves and wedge-like grooves are provided on the separate members 20 and 25, The cloth-like intervention material 35 may be affixed while avoiding these rod-like grooves and wedge-like grooves, or the cloth-like intervention material 35 is affixed in advance to the portions where the rod-like grooves and wedge-like grooves are to be installed. After the attachment, the cloth-like interposing material 35 attached when providing the rod-like groove and the wedge-like groove may be removed at the same time. In order to form the second type soft foamed resin introduction portions 41 and 43, after providing the rod-like groove and the wedge-like groove, the cloth-like interposing material 35 is stuck in the rod-like groove and the wedge-like groove.

  Next, the separate member 20 to which the cloth-like interposing material 35 is attached as described above is attached to the upper mold 51. At this time, the pedestal 56 is fitted into the recess 21 and the protrusion 57 is inserted into the separate member 20 to which the cloth-like interposing material 35 is attached. Similarly, another member 25 to which the cloth-like interposing material 35 is attached is attached to the upper mold 51. At this time, the pedestal 58 is fitted into the recess 21 and the protrusion 59 is inserted into the separate member 25 to which the cloth-like interposing material 35 is attached. As described above, a hole for engaging the protrusion 57 may be provided on the bottom surface of the recessed portion 21 and a hole for engaging the protrusion 59 may be provided on the bottom surface of the recessed portion 26. In addition, the protrusions 59 may be inserted into the separate members 25, respectively. Note that the cloth-like interposing material 35 may not be attached to the portion into which the protrusion 59 is inserted, or when the protrusion 57 and the protrusion 59 are inserted into the separate members 20 and 25, the protrusion 57 and the protrusion 59 are pierced. Alternatively, the pasted cloth-like interposing material 35 may be penetrated. In addition, the supporter material 30 may be provided with a through hole in advance in a portion through which the protrusion 57 and the protrusion 59 are inserted, or may be provided with a piercing of the protrusion 57 and the protrusion 59.

Thereafter, the urethane stock solution is supplied into the lower mold 52, the mold is closed, and the urethane is heated and foamed.
The urethane stock solution flows from the portions 44a and 45a shown in FIG. 9 into grooves and through holes provided in the separate member 20 to form the first type soft foam resin introduction portion 40a and the second type soft foam resin introduction portion 41a. The same applies to the first type soft foam resin introduction portions 40b and 40c and the second type soft foam resin introduction portions 41b and 41c. Further, the urethane stock solution flows into the chamfered portion provided in the separate member 25 from the portion 46a and the portion 47a shown in FIG. 10 to form the first type soft foam resin introduction portion 42a and the second type soft foam resin introduction portion 43a. The same applies to the first type soft foam resin introduction portions 42b and 42c and the second type soft foam resin introduction portions 43b and 43c. After foaming, the urethane is cured, the mold is opened, and the mold is removed. The separate member 20 to which the cloth-like interposing material 35 is attached, the other member 25 to which the cloth-like interposing material 35 is attached, and the supporter material 30 are integrated with the seat pad main body 10 made of a foam-molded product. Release from 51 smoothly. After removing from the mold, a vacuum crash treatment may be performed.

  In the present embodiment, since a sheet-like material such as a nonwoven fabric is used as the supporter material 30, the supporter material 30 can be easily arranged along the upper mold 51. Further, since the supporter material 30 is sandwiched between the separate member 20 and the upper mold 51 at the time of foam molding of the seat pad body 10, the supporter material 30 is prevented from being displaced. Similarly, since the supporter material 30 is sandwiched between the separate member 25 and the upper mold 51 when the seat pad body 10 is foamed, the supporter material 30 is prevented from being displaced.

  In the present embodiment, as shown in FIG. 2, the recessed shape portion 7 facing the separate member 20 is provided on the back surface side of the cushion pad 1, and the seat frame is fitted therewith. Misalignment with the seat frame or the like is prevented. Then, by engaging the concave portion 21 of the separate member 20 with the pedestal portion 56 of the upper mold 51, the positional displacement of the separate member 20 during the molding is prevented. Similarly, the recessed portion 8 on which the separate member 25 faces is provided on the back side of the cushion pad 1 so that the seat frame is fitted therewith, so that the misalignment between the separate member 25 and the seat frame is prevented. Is done. Then, by engaging the concave portion 26 of the separate member 25 with the pedestal portion 58 of the upper mold 51, the misalignment of the separate member 25 during molding is prevented.

  In the present embodiment, the separate member 20 can be firmly held by the upper mold 51 by pushing the protrusion 57 into engagement with the bottom surface of the recess 21. Similarly, the separate member 25 can be firmly held by the upper mold 51 by pushing the protrusion 59 into engagement with the bottom surface of the recess 26.

  Next, a second embodiment of the seat pad of the present invention will be described. FIG. 11 is a front view of the seat back pad according to the second embodiment. Reference numeral 60 in the drawing denotes a seat back pad according to the second embodiment. 12 is a cross-sectional view taken along the line II-II of FIG. 11, and FIG. 13 is an enlarged view of the upper part of FIG.

  As shown in FIG. 11, the seat back pad 60 includes a backrest portion 63 and left and right side support portions 62. On the surface of the seat back pad 60, a suspending groove 64 for suspending a skin material (not shown) is provided along the side support portion 62.

  The seat back pad 60 is provided on the back of the seat back pad main body 61, another member 65 provided on the back of the upper side of the seat back pad, and the left and right side support portions 4 of the seat back pad main body 61. And a separate member 66.

  The seat back pad main body 61 may be made of any material as long as it is made of a soft foam resin, but is made of polyurethane foam in the present embodiment. The separate member 65 and the separate member 66 are made of foamed polystyrene (foamed polystyrene), but may be foamed polyethylene or the like.

  As shown in FIG. 12, the seat back pad main body 61 has a front surface 76a and a back surface 76b, and also has a front side portion 77a and a back side portion 77b. And the upper edge and the left and right side edges project toward the center on the back side and are opened toward the center on the back side of the seat back pad main body 61. A hollow portion (concave shape portion) 73 is formed. The separate member 65 has a substantially inverted J-shaped cross section that faces the hollow portion 73 and surrounds the hollow portion 73.

  As shown in FIG. 13, the cloth-like interposing material 35 is attached to the outer peripheral surface of the separate member 65. The cloth-like interposing material 35 is made of the same material as the seat cushion pad 1 of the first embodiment, and the cloth-like interposing material 35 is attached to the outer peripheral surface of another member 65 in the first embodiment. The same adhesive as in the case of the seat cushion pad 1 or a nonwoven fabric with an adhesive can be used.

  In this way, by bonding the cloth-like interposing material 35 to the outer peripheral portion of the separate member 65, adhesion between the cloth-like interposing material 35 and the separate member 65 is ensured, and the soft foamed resin that is the material of the seat back pad main body 61. Is allowed to penetrate into the cloth-like interposing material 35 at the time of foam molding to secure the adhesion between the soft foamed resin and the cloth-like interposing material 35, thereby fixing the seat back pad main body 61 and the separate member 65 to the conventional cloth. This can be more reliable than the case where the interstitial material 35 is not attached. In addition, it is preferable that the cloth-like interposing material 35 is attached to the widest possible outer peripheral surface of the separate member 65 in order to secure the seat back pad main body 61 and the separate member 65.

  The surface facing the cavity 73 of the separate member 65 to which the cloth-like interposing material 35 is attached is covered with the supporter material 30 (see FIG. 13). The supporter material 30 also covers a portion of the seat back pad main body 61 adjacent to the supporter material 30. Thereby, generation | occurrence | production of abnormal noise can be prevented similarly to the seat cushion pad 1 of 1st Embodiment. In addition, the supporter material 30 can use the thing similar to the seat cushion pad 1 of 1st Embodiment.

  Since the main body 61 of the seat back pad 60 and the separate member 65 to which the cloth-like interposing material 35 is attached have a bent portion 78 located at the back of the cavity portion 73, the support material is made cloth-like at the bent portion 78. Unless the support member 35 is fixed to the separate member 65 to which the intervening material 35 is attached, the supporter material 30 is particularly likely to hang down in a bag shape. Therefore, a first type soft foamed resin introduction portion 75 made of polyurethane foam is provided in the bent portion 78 of the separate member 65 to which the cloth-like interposing material is attached. The first type soft foamed resin introduction portion 75 serves to fix the supporter material 30 to the separate member 62 to which the cloth-like intervention material 35 is attached. It is not necessary to provide the entire surface between the bent portion 78 of the member 65 and the supporter material 30, and it may be provided locally. Further, locally providing the first type soft foamed resin introduction portion 75 between the bent portion 78 of the separate member 65 to which the cloth-like interposing material 35 is attached and the supporter material 30 causes the seat back pad 60 to be provided. When molding, the cloth-like interposing material 35 is brought into contact with the surface of a molding die (core), which will be described later, via the supporter material 30 through the support material 30 where the first type soft foam resin introduction portion 75 is not provided. This is preferable for positioning and arranging the attached separate member 62 on the molding die.

  Here, the shape, size, and arrangement interval of the first type flexible foam resin introduction portion 75 made of polyurethane foam will be described. FIG. 14 is an explanatory view of the seat back pad 60 viewed from the side of the cavity 73 without the supporter material 30 in order to explain the arrangement interval of the first type soft foamed resin introduction portion 75.

  In FIG. 14, three cylindrical first-type soft foamed resin introduction portions 75a, 75b, and 75c are shown, but the number is not limited to this. The size of each of the first type soft foam resin introduction portions 75a to 75c is preferably such that the diameter of the bottom surface of the cylinder is 10 mm or more, and when the bottom surface is not circular, such as a quadrangular prism, the area of the bottom surface is the diameter. Is more than the area of a circle of 10 mm. In addition, when setting it as the shape which penetrates the separate member 65 like the 1st type soft foamed resin introduction part 75, the 2nd type soft foam to which the separate member 65 and the supporter material 30 adhere | attach via the cloth-like interposing material 35 is used. Although it does not become a resin introduction portion, the reason will be described later in the description of the method for molding the seat back pad 60.

  The first type soft foamed resin introduction portions 75a to 75c are arranged, for example, at an interval of a distance L3 in FIG. The distance L3 is a ratio S1 / S2 of the total area S1 of the portions in contact with the supporter material 30 for each of the first type soft foam resin introduction portions 75a to 75c to the area S2 of the surface of the separate member 65 facing the supporter material 30. What is necessary is just to determine so that it may become 5 to 95% of range. In addition, when there is no 2nd type | mold soft foam resin introduction part like this embodiment, let the sum total of the area of the part which touches the supporter material 30 about each 1st type soft foam resin introduction part be S1. In the present embodiment, the ratio S1 / S2 is 20%. Further, when the ratio S1 / S2 is less than 5%, the supporter material 30 hangs down. On the other hand, when the ratio S1 / S2 exceeds 95%, the seat cushion pad body of the separate member 65 to which the cloth-like interposing material 35 is attached. The positional accuracy with respect to 10 was low.

  Further, the distance L3 does not have to be constant. For example, the distance between the first type soft foam resin introduction portion 75a and the first type soft foam resin introduction portion 75b is different from the distance between the first type soft foam resin introduction portion 75b and the first type soft foam resin introduction portion 75c. May be.

  Next, another cross section of the seat back pad 60 will be described. 15 is a cross-sectional view taken along line III-III in FIG. 11, and FIG. 16 is a cross-sectional view taken along line IV-IV in FIG. In FIG. 15, the upper side is the surface 76 a of the seat back pad 60.

  As shown in FIG. 15, another member 66 provided on the back surface of the right side support portion 62 of the seat back pad main body 61, and another member 66 provided on the back surface of the left side support portion 62 of the seat back pad main body 61, However, the left side support part 62 will be described below, but the right side support part 62 is also the same.

  The cloth-like interposing material 35 is affixed to the outer peripheral surface of the separate member 66 in the same manner as the separate member 25 of the seat cushion pad 1 of the first embodiment, whereby the seat back pad main body 61 and the separate member 66 are separated. The fixing is more reliable than the case where the conventional cloth-like interposing material 35 is not attached. In the present embodiment, the cloth-like interposing material 35 is attached to all the outer peripheral surfaces of the separate member 66 except for the portion in contact with the first-type soft foam resin introduction portion 80 described later, and the seat back pad main body 61 and the separate member are attached. The fixing to 66 is further ensured.

  Further, the back surface side of the separate member 66 to which the cloth-like intervention material 35 is attached is the same as the case of the separate member 25 to which the cloth-like intervention material 35 of the seat cushion pad 1 of the first embodiment is attached. The supporter material 30 is covered with a support member 30 made of a nonwoven fabric, and the supporter material 30 also covers a portion adjacent to another member 65 to which the cloth-like intervention material 35 is attached. Since the member 66 and the seat frame or the like are in slidable contact with each other through the supporter material 30 without being in direct slidable contact, generation of abnormal noise can be prevented.

  As shown in FIG. 15, a recessed portion 68 is provided on the back surface side of the separate member 66 to which the cloth-like interposing material 35 is attached, similarly to the recessed portion 21 of the seat cushion pad 1 of the first embodiment. In the present embodiment, as shown in FIG. 16, the recesses 68a, 68b, and 68c are provided in the upper, middle, and lower portions of the seat back pad 60 in the vertical direction, but the number is not limited to three. In addition, a locking hole for inserting a protrusion of the mold of the seat back pad 60 may be provided on the bottom surface of the recess 68.

  Further, the separate member 65 to which the cloth-like interposing material 35 is attached is provided with the first type soft foam resin introduction portions 42a to 42c and the second type soft foam resin introduction portion 43a of the seat cushion pad 1 of the first embodiment. ˜43c, first type soft foam resin introduction portions 80a to 80c and second type soft foam resin introduction portions 81a to 81c are provided, and a supporter is provided on the back side of another member 66 to which the cloth-like interposing material 35 is attached. The sagging of the material 30 is prevented. The ratio S1 / S2 is 5% as in the case of the seat cushion pad 1 of the first embodiment.

  Next, a method for forming the seat back pad 60 will be described. FIG. 17 is a cross-sectional view of a mold as a mold according to the second embodiment of the present invention for molding the seat back pad 60, and FIG. 18 is a diagram of the mold along the line VV in FIG. 11. It is a cross-sectional view. Reference numeral 90 in the figure denotes a mold according to the second embodiment. A mold 90 for molding the seat back pad 60 includes an upper mold 91, a lower mold 92, and a core 93. The core 93 is attached to the upper mold 91. The peripheral portion of the core 93 protrudes in the cavity portion 94 so as to form a cavity portion 73 in the seat back pad 60, and another member 65 is attached to the core 93 so as to strongly hold the protruding portion. Is retained.

  In order to perform foam molding of the seat back pad 60, first, the supporter material 30 is disposed along the core 93 and temporarily fixed, and then a release agent is sprayed into the mold 90. In addition, the temporary fixing method of the supporter material 30 can be the same as that of the case of 1st Embodiment.

  A cloth-like interposing material 35 is pasted on the outer peripheral portion of the separate member 65 in advance. As shown in FIG. 13, the separate member 65 is provided with a through hole for forming the first type soft foamed resin introduction portion 75, but the cloth-like interposing material 35 is provided with this through hole in the separate member 65. After that, it was pasted while avoiding both ends of the through hole. Even if the cloth-like interposing material 35 is pasted on the part of the separate member 65 where the through-hole is planned to be installed in advance, and the cloth-like interposing material 35 is removed at the same time when the through-hole is provided, Good. Further, when the soft foam resin introduction portion is provided by the through hole, as can be seen from FIG. 13, the second type soft foam resin in which the supporter material 30 is fixed to the separate member 65 via the cloth-like interposing material 35. It does not become the introduction part, but becomes the first type soft foamed resin introduction part 75.

  Next, another member 65 to which the cloth-like interposing material 35 is attached is attached to the core 93. At this time, the separate member 65 to which the cloth-like interposing material 35 is attached sandwiches the peripheral edge portion of the core 93 by its own elastic force and is held by the core 93. Further, with respect to the separate member 66 of the side support portion 62, the cloth-like interposing material 35 is attached and attached to the mold 90 in the same manner as in the first embodiment.

  Thereafter, the urethane stock solution is supplied into the lower mold 92, the mold is closed, and the urethane is heated and foamed. The urethane stock solution flows into the through-hole formed in the separate member 65 to which the cloth-like interposing material 35 is attached in order to form the first type soft foamed resin introduction portion 75 from the portion 69 shown in FIG. After foaming, cure the urethane, open the mold, and demold. The separate member 65 and the supporter material 30 to which the cloth-like interposing material 35 is attached are integrated with the seat back pad main body 61 made of a foam molded product, and are smoothly released from the core 73. Another member 66 to which the cloth-like interposing material 35 of the side support portion 62 is attached is the same as in the case of the first embodiment. The released seat back pad 60 may be subjected to a vacuum crash process.

  In the seat back pad 60 manufactured in this way, the support material 30 is between the separate member 65 to which the cloth-like interposing material 35 is attached and the core 73 during foam molding of the seat back pad main body 61. Since it is clamped, the supporter material 30 is prevented from being displaced.

  Further, the first-type soft foamed resin introduction portion 75 is also provided in the vicinity of the bag-like cavity 73, particularly the vicinity of the bent portion 78, in which the end portion of the supporter material 30 and the bag-like sagging of the supporter material 30 are particularly likely to occur. Since the supporter material 30 is fixed to the separate member 65, the supporter material 30 does not hang down in a bag shape or undulate. Moreover, also about the separate member 66 which affixed the cloth-like interposing material 35 of the side support part 62, similarly to the first embodiment, the first type soft foam resin introduction portion 80 or the second type soft foam resin introduction portion 81 is used. The supporter material 30 is fixed to the separate member 66, and the supporter material 30 does not hang down in a bag shape or undulates around the separate member 66.

  In the present embodiment, the separate member 65 to which the cloth-like interposing material 35 is attached can be easily held by causing strong interference with the core 73, so that the molding operation is easy. Moreover, about the separate member 66 which affixed the cloth-like interposing material 35 of the side support part 62, the same shaping | molding workability | operativity as 1st Embodiment is obtained.

  In addition, the place mentioned above only illustrated embodiment of this invention, and this invention can add a various change within the description range of a claim.

  According to the present invention, since the separate member and the seat frame or the like are in sliding contact with each other through the supporter material, the generation of abnormal noise can be prevented, and the cloth-like interposing material is attached to the separate member. At least a part that secures adhesion between the cloth-like interposition material and the separate member and ensures the adhesion between the soft foam resin and the cloth-like interposition material by the penetration of the soft foam resin into the cloth-like interposition material By providing, the fixation between the seat pad main body and the separate member can be made more reliable than before. In particular, even when the separate member has a shape that does not strongly interfere with the seat pad main body, the seat pad main body and the separate member can be reliably fixed.

DESCRIPTION OF SYMBOLS 1 Seat cushion pad 2 Thigh lower part 3 Bottom lower part 4 Side support part 5 Front and rear direction hanging groove 6 Horizontal width direction hanging groove 7, 8 Recessed shape part 10 Seat cushion pad main body 20, 25 Separate member 21, 21a, 21b, 21c , 21d Concave part 26, 26a, 26b, 26c Concave part 30 Supporter material 31a, 31b, 32a, 32b Part 35 Cloth-like interposing material 40, 40a, 40b, 40c, 42, 42a, 42b, 42c First type soft foam resin introduction Part 41, 41a, 41b, 41c, 43, 43a, 43b, 43c Type 2 soft foam resin introduction part 44a, 45b, 46a, 47b Part 50 Mold 51 Upper mold 52 Lower mold 53 Projection 54, 55 Cavity part 56 , 58 Base part 57,59 Protrusion 60 Seat back pad 61 Seat back pad main body 62 Support part 63 Backrest part 64 Hanging groove 65, 66 Separate member 68, 68a, 68b, 68c Recess 69 part 75, 75a, 75b, 75c Type 1 soft foam resin introduction part 76a Surface 76b Rear surface 77a Front side part 77b Rear surface Side part 78 Bent part 80, 80a, 80b, 80c Type 1 soft foam resin introduction part 81, 81a, 81b, 81c Type 2 soft foam resin introduction part 90 Mold 91 Upper mold 92 Lower mold 93 Core

Claims (8)

A seat pad body made of a soft foam resin;
Another member disposed on the back side of the seat pad body;
In a seat pad comprising
At least a part of an outer peripheral surface of the separate member is pasted with a cloth-like interstitial material into which the soft foam resin can permeate, and at least a part of the separate member to which the cloth-like interstitial material is pasted and a seat pad A seat pad, wherein at least a part of the back side of the main body is covered with a supporter material.   A first-type soft resin introduction portion that is locally in contact with both the separate member and the support material at at least one location of the separate member; and the cloth-like media locally at at least one location of the cloth-like interposing material. 2. The seat pad according to claim 1, comprising at least one of a second-type soft resin introduction portion in contact with both the dressing material and the supporter material.   Of the separate member, the total area S1 of the area of the portion where the supporter material is in contact with the first type soft foam resin introduction portion and the area of the portion where the support material is in contact with the second type soft foam resin introduction portion, The seat pad according to claim 1 or 2, wherein a ratio S1 / S2 to an area S2 of a surface facing the supporter material is 5 to 95%.   The seat pad according to any one of claims 1 to 3, wherein the cloth-like interposing material is a nonwoven fabric with an adhesive.   The seat pad according to any one of claims 1 to 4, wherein the separate member has a recess on a back surface side of the seat pad main body.   The seat pad according to claim 5, wherein the separate member has a locking hole into which a protrusion provided on the mold of the seat pad is inserted in a bottom surface of the recess.   The seat pad according to claim 5 or 6, wherein the support material has a through hole through which the protrusion is inserted, and extends along both the side surface and the bottom surface of the recess. A seat pad body made of a soft foam resin;
Another member disposed on the back side of the seat pad body;
With
At least a part of an outer peripheral surface of the separate member is pasted with a cloth-like interstitial material into which the soft foam resin can permeate, and at least a part of the separate member to which the cloth-like interstitial material is pasted and a seat pad In a mold for forming a seat pad in which at least a part of the back side of the main body is covered with a supporter material,
Corresponding to a recess provided on the back surface side of the seat pad main body of the separate member, a pedestal portion for fitting the recess into the cavity surface of the mold,
A protrusion protruding further from the pedestal portion toward the cavity of the mold, and locking the separate member to the inner surface of the mold;
A seat pad mold having the inner surface of the mold.

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