JP2002337166A - Mold member, foam molded article with hook and loop fastener and method for fitting the fastener to foam molded article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely engage a hook and loop fastener on a foam molded body side with a part of the fastener on the skin material side to be engaged. SOLUTION: A mold member is provided with a fitting part 16 to be fitted to a molding tool, and with a housing recess wherein the strip-shaped hook and loop fastener 4 is put from the engaging part 5. The fastener 4 is housed and retained in the housing recess so that the fastener 4 is fitted integrally in a foam molded article in the course of foam molding. The member has inside walls 9 and outside walls 10 taller in height than the former, which are provided in a state of being juxtaposed longitudinally in the ends in the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a mounting part to be attached to a molding die, and a receiving recess for receiving a band-shaped surface fastener from an engaging part side. A mold member for accommodating and holding the hook-and-loop fastener in the accommodating recess so that the hook-and-loop fastener can be integrally attached. Housed from the joint part side,
The present invention relates to a method of attaching a hook-and-loop fastener to a foam molded product, wherein the hook-and-loop fastener is integrally attached to the foam molded product by foam molding in the housed state.

[0002]

2. Description of the Related Art A cushion material used for an automobile seat or the like is constituted by assembling a skin material with a foamed molded product made of, for example, urethane foam.

[0003] As means for assembling the skin material to the foam molded product, one of a pair of male and female surface fasteners is attached to the foam molded product, and the other surface fastener is attached to the skin material. Means for detachably attaching a skin material to a foam molded product via a hook-and-loop fastener is employed.

In this means, in order to efficiently and firmly attach the hook-and-loop fastener to the foam molded article, the belt-shaped hook-and-loop fastener is housed in the housing recess of the mold member on the molding die side from the engaging portion side, and is housed therein. The hook-and-loop fastener is integrally attached to the foam molded article by foam molding in a state.

Conventionally, when a hook-and-loop fastener is housed in the housing recess of the mold member on the molding die side from the engaging portion side, the hook-and-loop fastener is inserted into the housing recess of the mold member by using a U-shaped cross section. It was simply pushed in from the side and mounted.

[0006]

According to the above-mentioned conventional means, the hook-and-loop fastener is simply pushed into the receiving recess from the side of the engaging portion and is mounted. A gap is easily formed between the engagement portion and the bottom surface of the housing recess, and a foamed resin stock solution (for example, a urethane stock solution) penetrates through the gap during foam molding, and immerses over a long range inside the housing recess in the longitudinal direction. There is a problem that the engaging portion is difficult to be engaged with the engaged portion of the surface fastener on the skin material side as it is foamed and molded.

An object of the present invention is to make it possible to more reliably engage the hook-and-loop fastener on the foam molded body with the engaged portion of the hook-and-loop fastener on the skin material side.

[0008]

The constitution, operation and effect of the invention according to claim 1 are as follows.

[Structure] An attaching portion to be attached to a mold,
An accommodating concave portion for accommodating a band-shaped surface fastener from the engaging portion side is provided, and the surface fastener is accommodated and held in the accommodating concave portion so that the surface fastener is integrally attached to the foam molded product with foam molding. A mold member, wherein an inner wall and an outer wall having a height higher than the inner wall are provided at end portions in the longitudinal direction so as to be arranged in the longitudinal direction.

[Operation] Since the mold member is configured as described above, the foamed resin stock solution, which is to enter the housing recess of the mold member from the outside in the longitudinal direction during foam molding, is moved in the longitudinal direction of the mold member. Can be blocked by an outer wall provided at the end of the.

In this case, since the outer wall is longer than the inner wall, in a state where the fastener base surface on the engaging portion side of the hook-and-loop fastener or the base end of the engaging portion is applied to the inner wall and the outer wall,
The end in the longitudinal direction of the hook-and-loop fastener is warped to the opposite side to the engaging portion, and by the action of the elastic force of the hook-and-loop fastener,
The pressing force of the hook-and-loop fastener against the outer side wall, that is, the adhesive force between the outer wall and the fastener base surface of the hook-and-loop fastener or the base end of the engaging portion is increased.

As a result, it is easier to prevent the foamed resin stock solution from entering the inner side than the outer wall.

Further, even if the foamed resin stock solution enters the inner side of the outer wall, it is possible to prevent the foamed resin stock solution from entering the inside of the housing recess at the inner wall.

Thus, the conventional problem, that is, the foamed resin undiluted liquid enters between the engaging portion of the hook-and-loop fastener and the bottom surface of the accommodating recess at the time of foam molding, and penetrates over a long range in the longitudinal direction of the accommodating recess. As a result, it is possible to solve the problem that it becomes difficult to engage the engaging portion with the engaged portion of the surface fastener on the skin material side.

[Effect] Therefore, the surface fastener on the foam molded body side can be more reliably engaged with the engaged portion of the surface fastener on the skin material side.

The structure, operation and effect of the invention according to claim 2 are as follows.

[Structure] A band-shaped surface fastener is attached to a molding die with a mold member provided with an inner wall and an outer wall having a height higher than the inner wall arranged in the longitudinal direction at the end in the longitudinal direction. Is housed in the housing recess of the mold member from the engagement part side,
The hook-and-loop fastener is integrally attached by foam molding in the housed state.

[Operation] Since the foam molded article is configured as described above, the same operation as the operation according to the first aspect can be achieved at the time of foam molding of this foam molded article.

[Effect] Accordingly, a foam molded article which can more reliably engage the surface fastener on the foam molded body with the engaged portion of the surface fastener on the skin material side can be provided.

The construction, operation and effect of the invention according to claim 3 are as follows.

[Structure] A band-shaped hook-and-loop fastener is housed in the housing recess of the mold member on the mold side from the engaging portion side, and foamed in the housed state, and the hook-and-loop fastener is integrally attached to the foam-molded product. A method of attaching a hook-and-loop fastener to an article, wherein the hook-and-loop fastener is provided in an accommodating recess of a mold member having an inner wall provided at the longitudinal end thereof in a state of being aligned in the longitudinal direction, and an outer wall having a higher height. Is foamed in a state in which is accommodated.

[Operation] Since foam molding is performed as described above, the same operation as the operation according to the first aspect can be achieved.

[Effect] Therefore, the surface fastener on the foam molded body side can be more reliably engaged with the engaged portion of the surface fastener on the skin material side.

[0024]

Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] In FIG. 1, a band-shaped surface fastener 4 is inserted into a receiving recess 3 of a mold member 2 (see FIG. 2) bolted to a molding die 1 from an engaging portion 5 (see FIG. 4) side. The hook-and-loop fastener 4 is housed and foam-molded in the housed state to form the foam molded product 6.
2 shows a state in which they are integrally mounted.

The foam molded product 6 is attached with a skin material (not shown) via male and female hook-and-loop fasteners (the male hook-and-loop fastener is the above-described hook-and-loop fastener 4) to form a seat cushion for an automobile. Things.

As shown in FIGS. 2 and 3, the mold member 2 is a band-shaped member having a U-shaped cross section, and accommodates the mounting portion 16 to be attached to the molding die 1 and the hook-and-loop fastener 4 from the engaging portion 5 side. The housing fastener 3 is provided in the housing recess 3 so that the hook-and-loop fastener 4 can be integrally attached to the foam molded product 6 with the foam molding.

At both ends in the longitudinal direction of the mold member 2, an inner wall 9 and an outer wall 10 having a height higher than the inner wall 9 are provided so as to be aligned in the longitudinal direction.

The inner side wall 9 and the outer side wall 10 are both made of a thin plate, and are fitted from above the housing recess 3 into a slit 14 formed at the longitudinal end of the mold member 2.

The hook-and-loop fastener 4 is made of resin.
As shown in FIG. 3, anchor portions 8 for the foam molded product 6 are provided in three rows on one base surface side of the fastener base portion 7 (hereinafter, abbreviated as “base portion 7”).
On the other base surface side, there are provided three rows of engaging portions 5 each having a number of mushroom-shaped engaging pieces 12.

The anchor portion 8 is a series of ribs along the longitudinal direction of the base portion 7.

Next, the hook-and-loop fastener 4 for the foam molded product 6 is used.
The method of mounting the hologram will be described.

1) FIG. As shown in FIG. 7, the hook-and-loop fastener 4 is placed in a state in which the fastener base surface of the hook-and-loop fastener 4 on the side of the engaging portion 5 is applied to the inner wall 9 of the mold member 2 and the outer wall 10 having a longer height. The mold member 2 is housed in the housing recess 3.

In this housing state, the base 7 of the hook-and-loop fastener 4 is in a state where both ends in the width direction are in close contact with the inner wall surface of the housing recess 3 of the mold member 2 (see FIG. 6).

The end of the hook-and-loop fastener 4 in the longitudinal direction is
The hook portion 4 is warped to the side opposite to the engaging portion 5, and
, The pressing force of the hook-and-loop fastener 4 against the outer wall 10, that is, the adhesion between the outer wall 10 and the base surface of the hook-and-loop fastener 4 increases.

2) In the state of the above 1), a urethane stock solution as a stock solution of foamed resin is injected into the molding die 1 to perform foam molding.

3) By removing the molding die 1 and simultaneously removing the hook-and-loop fastener 4 from the mold member 2, the hook-and-loop fastener 4 is integrally attached to a predetermined position on the surface of the foam molded product 6.

[Another Embodiment] The inner wall 9 of the mold member 2
Alternatively, foam molding may be performed in a state in which the base end of the hook-and-loop fastener 4 on the engaging portion 5 side is applied to the outer wall 10 having a higher height.

[Brief description of the drawings]

FIG. 1 is a diagram showing a state in which a hook-and-loop fastener is integrally attached to a foam molded product.

FIG. 2 is a perspective view showing a mold member.

FIG. 3 is a longitudinal sectional side view showing a mold member.

FIG. 4 is a front view of a hook-and-loop fastener.

FIG. 5 is a perspective view showing a hook-and-loop fastener.

FIG. 6 is a front view showing a state where the hook-and-loop fastener is attached to the mold member.

FIG. 7 is a longitudinal sectional side view showing a state where a hook-and-loop fastener is attached to a mold member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mold 2 Mold member 3 Housing recess 4 Surface fastener 5 Engagement part 6 Foam molded article 9 Inner side wall 10 Outer side wall 16 Mounting part

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (Reference) B29K 105: 04 B29K 105: 04 B29L 31:58 B29L 31:58 F term (Reference) 3B087 DE03 4F202 AA42 AD05 AD24 AG20 AH26 AM32 CA01 CB01 CB11 CK87 CQ01 CQ05 CQ10 4F204 AA42 AD05 AD24 AG20 AH26 AM32 EA01 EA04 EB01 EB11 EK22 EK24

Claims (3)

[Claims] A mounting portion for mounting the belt-shaped surface fastener from an engagement portion side;
A mold member for accommodating and holding the hook-and-loop fastener in the housing recess so that the hook-and-loop fastener is integrally attached to the foam molded article with the foam molding, an inner wall, and an outer wall having a higher height than this. A mold member having a wall provided at a longitudinal end thereof in the longitudinal direction. 2. A belt-shaped surface fastener is mounted on a molding die with an inner wall and an outer wall having a longer length than the inner wall attached to a longitudinal end of the molding die. A foam molded article with a hook-and-loop fastener, wherein the hook-and-loop fastener is integrally accommodated in the accommodating recess of the mold member from the engagement portion side, and is foam-molded in the accommodated state. 3. A foam molded product in which a belt-shaped surface fastener is housed in a housing recess of a mold member on a molding die side from an engaging portion side, and foamed in the housed state, and the surface fastener is integrally attached to the foam molded product. A method of attaching a hook-and-loop fastener to a mold member provided with an inner wall provided in a state of being aligned in the longitudinal direction at a longitudinal end and an outer wall having a higher height than the hook-and-loop fastener. A method of attaching a hook-and-loop fastener to a foam molded product to be foam-molded in a stored state.