JP4836650B2 - Cushion pad manufacturing method - Google Patents

Description

The present invention
A belt-like shape in which a first engaging portion on one surface side of a belt-shaped surface fastener and a first engaged portion on one surface side of a belt-like cover member having magnetism are engaged with each other so as to be disengageable. The body is accommodated in the belt-like body housing groove so that the other surface of the cover member is in contact with the bottom surface of the belt-like body housing groove of the molding die, and the cover is attached to the permanent magnet disposed at the bottom of the belt-like body housing groove. The present invention relates to a cushion pad manufacturing method in which a member is adsorbed, a foamed resin stock solution is supplied to the mold and foamed, and a cushion pad in which an anchor portion on the other surface side of the surface fastener is buried is molded.

  A seat back or a seat cushion of an automobile is formed by covering a cushion pad made of a foam molded body with a skin material. As means for attaching this skin material to the cushion pad, in recent years, an engaged portion of a concave or convex surface fastener provided on the skin material side and a convex or concave surface fastener provided on the cushion pad side are used. Means for engaging the engaging portion has been adopted. In this means, as described at the beginning, the band-shaped body is constituted by a surface fastener and a cover member, and the band-shaped body is accommodated in the band-shaped body receiving groove of the molding die by adsorbing the cover member having magnetism to the permanent magnet. Install and fix to. Then, the foamed resin stock solution is supplied to the mold and foamed, and after the mold release, the engagement between the first engaging portion and the first engaged portion is released to separate and remove the cover member from the surface fastener, The engaged portion of the surface fastener on the skin material side is engaged with the engaging portion of the surface fastener on the cushion pad side.

Conventionally, in the above-described cushion pad manufacturing method,
In the step of accommodating the cover member in the belt-shaped body accommodation groove,
The first cover member portion on the one end portion side of the cover member is released by disengaging the first engaged portion portion on the one end portion side of the cover member and the first engagement portion portion on the one end portion side of the hook and loop fastener. Is separated from the first surface fastener portion on one end side of the hook and loop fastener, and the first cover member portion is bent to the second cover member portion side continuous with the first cover member portion to thereby remove the first cover member portion. The belt-shaped body obtained by dividing and removing the first surface fastener portion from the second surface fastener portion that is superimposed on the second cover member portion and continuous with the first surface fastener portion is housed in the belt-shaped body housing groove. And the foamed resin stock solution was made to foam in the state which the dam part provided in the shaping | molding die was contact | abutted to the partial cross section of the 2nd surface fastener part. After foam molding, the operator picks up the first cover member portion and separates the cover member from the surface fastener. That is, the first cover member portion is overlapped with the second cover member portion so that the cover member can be easily separated from the surface fastener.

  According to the above-mentioned conventional means, the foamed resin stock solution is foamed in a state where the weir portion provided in the mold is brought into contact with the dividing surface of the second surface fastener portion. The partial cross section of the second surface fastener portion was exposed. As a result, due to the fact that the split section is not coupled to the cushion pad, the coupling force between the one end of the surface fastener and the cushion pad becomes insufficient, and the operator grips the first cover member portion and removes the surface. When the cover member is pulled away from the fastener, the second surface fastener portion may be peeled off from the cushion pad portion near the partial cross section.

The purpose of the present invention is to
The point is to provide a method of manufacturing a cushion pad in which the surface fastener and the cushion pad are difficult to separate.

The first aspect of the invention is characterized in that in the cushion pad manufacturing method described at the beginning,
In the step of housing the strip in the strip housing groove,
Disengagement between the first engaged portion on the one end side of the cover member and the first engaging portion on the one end side of the hook and loop fastener, releases the first on the one end side of the cover member. The cover member portion is separated from the first surface fastener portion on one end side of the hook and loop fastener, and the first cover member portion is bent to the second cover member portion side continuous with the first cover member portion. The strip-shaped body receiving groove is formed by superimposing the first cover member portion on the second cover member portion, and separating and removing the first surface fastener portion from the second surface fastener portion connected to the first surface fastener portion. Housed in
The foamed resin stock solution is foamed in a state where the partial cross section of the second surface fastener portion is exposed, and a part of the cushion pad is integrated with the partial cross section of the second surface fastener portion.

  In other words, the foamed resin stock solution is foamed in a state in which the sectional surface of the second surface fastener portion is exposed, and a part of the cushion pad is integrated with the sectional surface of the second surface fastener portion. When the operator picks the first cover member part and pulls the cover member away from the surface fastener, a part of the cushion pad holds the sectional surface against the pulling force, and the second surface fastener part is It becomes difficult to peel off from the cushion pad portion near the sectional surface.

The second aspect of the invention is characterized in that in the cushion pad manufacturing method described at the beginning,
In the step of housing the strip in the strip housing groove,
Disengagement between the first engaged portion on the one end side of the cover member and the first engaging portion on the one end side of the hook and loop fastener, releases the first on the one end side of the cover member. The cover member portion is separated from the first surface fastener portion on one end side of the hook and loop fastener, and the first cover member portion is bent to the second cover member portion side continuous with the first cover member portion. In a state where the first cover member portion is overlapped with the second cover member portion, the band-shaped body is accommodated in the band-shaped body accommodation groove,
The foamed resin stock solution is foamed with the first surface fastener portion exposed, and the first surface fastener portion is buried in the cushion pad.

  That is, since the foamed resin stock solution is foamed with the first surface fastener portion exposed, and the first surface fastener portion is buried in the cushion pad, the worker removes the cushion pad and then the operator removes the first cover member portion. When the cover member is pulled away from the hook-and-loop fastener, the cushion pad holds the first-surface fastener portion against the pulling force, and the second-surface fastener portion is hardly peeled off from the cushion pad.

In the first invention or the second invention,
A plurality of the permanent magnets are arranged at the bottom of the strip-shaped body housing groove with a space in the longitudinal direction of the strip-shaped body housing groove, and are bent on the second cover member portion side so as to overlap the second cover member portion. Of the two end portions in the longitudinal direction of the combined first cover member portion, one end portion located on the inner side in the longitudinal direction of the belt-like body is attracted to one permanent magnet of the plurality of permanent magnets. The following actions can be achieved.

  Of the both ends of the first cover member portion in the longitudinal direction, the foamed resin stock solution enters between the one end portion located on the inner side in the longitudinal direction of the strip and the second cover member portion overlapped therewith to foam. When solidified, the one end part and the second cover member part are integrated, and when the operator pulls the cover member away from the surface fastener, there is a problem that the first cover member part is difficult to be picked. The one end portion and the bottom surface of the belt-like body housing groove, and the one end portion and the second cover member portion can be firmly adhered by the magnetic force of a permanent magnet, and between the one end portion and the second cover member portion. It is possible to prevent the foamed resin stock solution from entering, and to avoid integration of the one end portion and the second cover member portion. Thereby, after demolding, the one end portion and the second cover member portion are easily separated, and an operator can easily pick the one end portion, thereby improving workability.

According to the first and second inventions,
It was possible to provide a method of manufacturing a cushion pad in which the hook-and-loop fastener and the cushion pad are difficult to separate.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
[First Embodiment]
1 and 2 show a seat back 100 for an automobile seat manufactured by the manufacturing method of the present invention. The seat back 100 includes a seat back pad 1 (corresponding to a cushion pad), a skin material 2 covering the seat back pad 1, and a pair of left and right convex surface fasteners 3 provided in the lower half of the seat back pad 1. And a wire 4 embedded in the upper half of the seat back pad 1, a concave surface fastener (not shown) provided in the skin material 2, and the wire 4 provided in the skin material 2. And a hook (not shown). In the present embodiment, the seat back pad 1 and the skin material 2 are coupled by the convex surface fastener 3 and the concave surface fastener, and are coupled by the hook and the wire 4. The present invention can also be applied to the case where the pad 1 and the skin material 2 are joined only by the convex surface fastener 3 and the concave surface fastener.

  In FIGS. 1 and 2, reference numeral 5 denotes raised side portions on the left and right sides of the seat back pad 1, 6 denotes a center portion of the seat back pad 1, 7 denotes a reinforcing cloth attached to the back surface of the seat back pad 1, and 8. Is a pair of left and right first groove portions formed between the center portion 6 and the side portion 5 along the vertical direction, 9 is a second groove portion formed in the center of the center portion 6 in the width direction, and 10 is a seat back This is a third groove portion provided between the upper half portion and the lower half portion of the pad 1 along the width direction. The wire 4 is formed on the back side of the bottom face of the first groove part located on the upper half side of the first groove part 8 and on the back side of the bottom face of the third groove part 10 in the longitudinal direction of these groove parts 8 and 10. It is buried separately along each. In the first groove portion and the third groove portion 10 located on the upper half side, a plurality of long holes 11 for hook locking operation for exposing the wire 4 are formed. The surface fastener 3 is provided along the longitudinal direction of the first groove portion 8 at the bottom 12 of the first groove portion located on the lower half side of the first groove portion 8.

The manufacturing method of said seat back pad 1 is as follows.
(1) As shown in FIG. 6, the first engaging portion 13 on the one surface 3A side of the band-shaped surface fastener 3 and the first engaged portion 55 on the one surface 14A side of the band-shaped cover member 14 A belt-like body 15 is prepared which is engaged so as to be disengageable. The cover member 14 is provided with magnetism. The first engaging portion 13 is configured by standing a large number of convex first engaging elements 27 on the entire surface of one surface 3A of the hook and loop fastener 3, and the first engaged portion 55 has a large number of concave shapes. The second engaging element 28 is erected on the entire surface of one surface 14 </ b> A of the cover member 14. An anchor portion 19 is provided on the other surface 3 </ b> B of the surface fastener 3, and the anchor portion 19 connects a plurality of concave third engagement elements 30 larger than the second engagement element 28 to the other surface of the surface fastener 3. The surface 3B is erected on the entire surface.

(2) [Strip-shaped body attaching step] (Process for housing the strip-shaped body in the lower strip-shaped body housing groove)
As shown in FIGS. 3, 4, and 5, a lower mold 16 (corresponding to a molding mold) provided with a belt-like body accommodation groove 17 and an upper mold (not shown) for the lower mold are used. The strip-shaped body accommodation groove 17 is formed on the top of the elongated ridge for forming the first groove 8 of the seat back pad so as to be along the longitudinal direction of the ridge. A plurality of permanent magnets 18 having a circular cross section are disposed in the bottom portion 17T of the belt-like body housing groove 17 with a gap in the longitudinal direction J of the bottom portion 17T. The permanent magnet 18 is arranged with respect to the strip-shaped body accommodation groove 17 so that the upper surface 18J of the permanent magnet 18 and the bottom surface 17S of the strip-shaped body accommodation groove 17 are flush with each other.
As shown in FIGS. 7 and 8, the belt-like body 15 is accommodated in the belt-like body accommodation groove 17 so that the other surface 14B of the cover member 14 abuts the bottom surface 17S of the belt-like body accommodation groove 17 of the lower mold 16. The cover member 14 is attracted to a plurality of permanent magnets 18 arranged on the bottom 17T of the belt-like body accommodation groove 17, and the reinforcing cloth 7 cut into a predetermined shape is set on the upper die. Specifically, as shown in FIG. 6, the engagement between the first engaged portion 20 on the one end 14 </ b> T side of the cover member 14 and the first engaging portion 21 on the one end 3 </ b> T side of the hook and loop fastener 3 is performed. The first cover member portion 22 on the one end portion 14T side of the cover member 14 is separated from the first surface fastener portion 23 on the one end portion 3T side of the surface fastener 3. Then, as shown in FIG. 7, the first cover member portion 22 is bent toward the second cover member portion 24 connected to the first cover member portion 22, and the first cover member portion 22 is bent to the second cover member portion 24. The belt-like body 15 obtained by separating and removing the first-face fastener portion 23 from the second-face fastener portion 25 connected to the first-face fastener portion 23 (see FIG. 6) is accommodated in the belt-like body accommodation groove 17 (FIG. 8). reference). Of the two end portions 22A and 22B in the longitudinal direction J of the first cover member portion 22 that is bent toward the second cover member portion 24 and overlapped with the second cover member portion 24, the longitudinal direction of the strip 15 One end portion 22 </ b> A located on the inner side J <b> 1 is attracted to one permanent magnet 18 among the plurality of permanent magnets 18.

(3) [foam molding process]
A foamed resin stock solution (urethane stock solution) is supplied to the lower mold 16, and the upper mold is placed on the lower mold 16 to foam the foamed resin stock solution. Thereby, the seat back pad 1 in which the anchor portion 19 on the other surface 3B side of the surface fastener 3 is buried is formed. In this step, the foamed resin stock solution is foamed in a state where the dividing surface 25M of the second surface fastener portion 25 is exposed, and the portion 35 of the seat back pad 1 is integrated with the dividing surface 25M of the second surface fastener portion 25. . The lower die 16 is formed so that the dividing surface 25M of the second surface fastener portion 25 is exposed. The said part 35 is shape | molded by the recessed part 40 of the lower mold | type 16, and has a convex part shape.

(4) As shown in FIGS. 9 and 10, the operator pulls up the first cover member portion 22 and pulls it in the direction of arrow B to pull the cover member 14 away from the surface fastener 3. Reference numeral 12 denotes a bottom portion of the first groove portion 8 (specifically, the first groove portion) of the seat back pad 1. Thereby, the 1st engaging part 13 of the hook-and-loop fastener 3 appears. The first engagement portion is engaged with the engaged portion of the surface fastener of the skin material 2, and the skin material 2 is attached to the seat back pad 1.

[Second Embodiment]
The manufacturing method of the seat back pad 1 is slightly different from the first embodiment, and the longitudinal end of the first groove 8 is slightly different from the longitudinal end of the first groove 8 of the first embodiment. It is molded into a different shape. Other structures are the same.

The manufacturing method of the seat back pad 1 of this embodiment is as follows.
(1) A strip 15 having the same structure as that of the first embodiment is prepared.

(2) [Strip-shaped body attaching step] (Process for housing the strip-shaped body in the lower strip-shaped body housing groove)
The lower mold 16 used in the present embodiment is different from the lower mold 16 of the first embodiment in the following points. That is, as shown in FIG. 11, the lower mold part on the left side of the permanent magnet 18 located at the leftmost end among the plurality of permanent magnets 18 is made one step lower. This is because the first surface fastener portion 23 is buried in the seat back pad 1 as described later. The other structure of the lower mold 16 is the same as the structure of the lower mold 16 of the first embodiment.
As shown in FIGS. 11 and 12, the band-shaped body 15 is accommodated in the band-shaped body accommodation groove 17 so that the other surface 14 </ b> B of the cover member 14 contacts the bottom surface 17 </ b> S of the band-shaped body accommodation groove 17 of the lower mold 16. The cover member 14 is attracted to a plurality of permanent magnets 18 arranged on the bottom 17T of the belt-like body accommodation groove 17, and the reinforcing cloth 7 cut into a predetermined shape is set on the upper die. Specifically, as shown in FIG. 6, the engagement between the first engaged portion 20 on the one end 14 </ b> T side of the cover member 14 and the first engaging portion 21 on the one end 3 </ b> T side of the hook and loop fastener 3 is performed. The first cover member portion 22 on the one end portion 14T side of the cover member 14 is separated from the first surface fastener portion 23 on the one end portion 3T side of the surface fastener 3. Then, as shown in FIG. 11, the first cover member portion 22 is bent toward the second cover member portion 24 connected to the first cover member portion 22, and the first cover member portion 22 is bent to the second cover member portion 24. In a state of being superposed on each other, the belt-like body 15 is housed in the belt-like body housing groove 17. Of the two end portions 22A and 22B in the longitudinal direction J of the first cover member portion 22 that is bent toward the second cover member portion 24 and overlapped with the second cover member portion 24, the longitudinal direction of the strip 15 One end portion 22 </ b> A located on the inner side J <b> 1 is attracted to one permanent magnet 18 among the plurality of permanent magnets 18.

(3) [foam molding process]
A foamed resin stock solution (urethane stock solution) is supplied to the lower mold 16, and an upper mold (not shown) is placed on the lower mold 16 to foam the foamed resin stock solution. Thereby, the seat back pad 1 in which the anchor portion 19 on the other surface 3B side of the surface fastener 3 is buried is formed. In this step, the foamed resin stock solution is foamed while the entire first surface fastener portion 23 is exposed, and the first surface fastener portion 23 is buried in the seat back pad 1.

(4) As shown in FIGS. 13 and 14, the operator pulls up the first cover member portion 22 and pulls it in the direction of arrow B to pull the cover member 14 away from the surface fastener 3. Reference numeral 12 denotes a bottom portion of the first groove portion 8 (specifically, the first groove portion) of the seat back pad 1. Thereby, the 1st engaging part 13 of the hook-and-loop fastener 3 appears. The first engagement portion is engaged with the engaged portion of the surface fastener of the skin material 2, and the skin material 2 is attached to the seat back pad 1.

[Another embodiment]
The present invention can also be applied to a seat cushion pad.

Front view of seat back AA sectional view of FIG. Cross section of mold A view of FIG. Vertical side view of the belt-like body receiving groove of the mold Perspective view of strip Diagram showing attachment of strip to mold The figure which shows the state which attached the strip | belt shaped object to the shaping | molding die The figure which shows the removal method of the cover member from a hook-and-loop fastener Longitudinal sectional view of the main part of the seat back with the cover member removed It is a figure which shows another embodiment, and is a figure which shows attachment of the strip | belt shaped object to a shaping | molding die It is a figure which shows another embodiment, and is a figure which shows the state which attached the strip | belt shaped object to the shaping | molding die It is a figure which shows another embodiment, and is a figure which shows the removal method of the cover member from a hook-and-loop fastener It is a figure which shows another embodiment, and the longitudinal cross-sectional view of the principal part of the seat back of the state which removed the cover member

Explanation of symbols

1 Cushion pad (seat back pad)
2 Surface material 3 Surface fastener 3A One surface 3B of surface fastener The other surface 3T of surface fastener One end portion 4 of surface fastener 4 Wire 5 Side portion 6 Center portion 7 Reinforcement cloth 8 First groove portion 9 Second groove portion 10 Third groove portion 11 Long hole 12 Bottom portion of second groove portion 13 First engaging portion 14 Cover member 14A One surface 14B of cover member 14T The other surface 14C of cover member One end portion 15 of cover member Band 16 Forming die (lower die)
17 Band-shaped body housing groove 17S Bottom surface of belt-shaped body housing groove 17T Bottom portion 18 of band-shaped body housing groove Permanent magnet 19 Anchor portion 20 First engaged portion 21 First engaging portion 22 First cover member portion 22A First cover member One end portion 22B The other end portion 23 of the first cover member 23 The first surface fastener portion 24 The second cover member portion 25 The second surface fastener portion 25M The partial cross section 35 of the second surface fastener portion The cushion pad portion 27 The first engagement element 28 Second engagement element 30 Third engagement element 55 First engaged portion 100 Seat back J Longitudinal direction J1 of strip-shaped body receiving groove Longitudinal direction inward side of strip-shaped body

Claims (3)

A belt-like shape in which a first engaging portion on one surface side of a belt-shaped surface fastener and a first engaged portion on one surface side of a belt-like cover member having magnetism are engaged with each other so as to be disengageable. The body is accommodated in the belt-like body housing groove so that the other surface of the cover member is in contact with the bottom surface of the belt-like body housing groove of the molding die, and the cover is attached to the permanent magnet disposed at the bottom of the belt-like body housing groove. A method for producing a cushion pad, wherein a member is adsorbed, a foamed resin stock solution is supplied to the mold and foamed, and a cushion pad in which an anchor portion on the other surface side of the surface fastener is buried is formed,
In the step of housing the strip in the strip housing groove,
Disengagement between the first engaged portion on the one end side of the cover member and the first engaging portion on the one end side of the hook and loop fastener, releases the first on the one end side of the cover member. The cover member portion is separated from the first surface fastener portion on one end side of the hook and loop fastener, and the first cover member portion is bent to the second cover member portion side continuous with the first cover member portion. The strip-shaped body receiving groove is formed by superimposing the first cover member portion on the second cover member portion, and separating and removing the first surface fastener portion from the second surface fastener portion connected to the first surface fastener portion. Housed in
A method of manufacturing a cushion pad in which the foamed resin stock solution is foamed in a state where a partial cross section of the second surface fastener portion is exposed, and a part of the cushion pad is integrated with the partial cross section of the second surface fastener portion. A belt-like shape in which a first engaging portion on one surface side of a belt-shaped surface fastener and a first engaged portion on one surface side of a belt-like cover member having magnetism are engaged with each other so as to be disengageable. The body is accommodated in the belt-like body housing groove so that the other surface of the cover member is in contact with the bottom surface of the belt-like body housing groove of the molding die, and the cover is attached to the permanent magnet disposed at the bottom of the belt-like body housing groove. A method for producing a cushion pad, wherein a member is adsorbed, a foamed resin stock solution is supplied to the mold and foamed, and a cushion pad in which an anchor portion on the other surface side of the surface fastener is buried is formed,
In the step of housing the strip in the strip housing groove,
Disengagement between the first engaged portion on the one end side of the cover member and the first engaging portion on the one end side of the hook and loop fastener, releases the first on the one end side of the cover member. The cover member portion is separated from the first surface fastener portion on one end side of the hook and loop fastener, and the first cover member portion is bent to the second cover member portion side continuous with the first cover member portion. In a state where the first cover member portion is overlapped with the second cover member portion, the band-shaped body is accommodated in the band-shaped body accommodation groove,
A method for manufacturing a cushion pad, wherein the foamed resin stock solution is foamed with the first surface fastener portion exposed, and the first surface fastener portion is buried in the cushion pad.   A plurality of the permanent magnets are arranged at the bottom of the strip-shaped body housing groove with a space in the longitudinal direction of the strip-shaped body housing groove, and are bent on the second cover member portion side so as to overlap the second cover member portion. Of the two end portions in the longitudinal direction of the combined first cover member portion, one end portion located on the inner side in the longitudinal direction of the belt-like body is attracted to one permanent magnet of the plurality of permanent magnets. The manufacturing method of the cushion pad of Claim 1 or 2.

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