TWI400044B - Forming a common veneer - Google Patents

Description

Molded male adhesive strip

The present invention relates to a male snap element forming region composed of a plurality of hook pieces or gussets which are engaged with a female engaging element of a ring shape on one side of a flat substrate, and has: The left and right side edges of at least the longitudinal direction of the engagement element forming region are disposed, and the resin intrusion preventing wall portion invading the formation region of the engaging element during molding foaming is prevented, and the magnetic gas is resistant. The molded male adhesive tape fixed to the foamed resin molding die is attracted.

Seat seats for automobiles or trains, various sofas, office chairs, etc., are provided with a buffer body inside the skin material. The cushioning body is made of a cushioning material called a rock wool or the like which is reinforced by a rigid fiber such as coconut, hemp or coarse synthetic fiber, or a foaming resin material. Foamed molded body. These cushioning materials are designed to maintain a sitting posture that does not get tired even when seated for a long period of time, and have a curved surface composed of an ergonomic concave-convex shape. When the buffer material having such a complicated surface shape is to be efficiently mass-produced in consideration of the cushioning property, it is difficult to cope with the above-mentioned asbestos having a large manufacturing process. On the other hand, a buffer system composed of a foamable resin material can be produced in a single process, and various shapes can be easily obtained, and thus it is widely used. In other words, a foaming resin made of a foamable resin is formed by injecting a foamable resin material such as a foamed urethane resin into a mold, and molding the desired shape while foaming.

On the surface of the cushion body thus formed, a surface material in which various fiber fabrics, natural or synthetic leather, and the like are integrated and fixed is covered. For the fixing and integration of the cover, the method is: first, the surface material is adsorbed along the mold surface, and the foamable resin material is poured therein, and the buffer body is molded while being integrated with the back surface of the skin material, or Any means for forming a cushion body made of a foamable resin material by a mold and then covering the surface thereof to fix the surface material.

In the above-described method of integrally molding, when the surface material is attached along the inner surface of the mold, the suction material is used to adsorb along the inner surface of the mold, but the surface material is provided with a buffer having a complicated surface morphology as described above. The surface is deformed, and the surface material itself must be a material with excellent stretchability. However, depending on the material, the stretchability is also limited, so that a lot of wrinkles are easily generated between the seat surface and the side surface of the circumference, and considerable effort has been made to correct this.

Further, since the cushion body and the skin material are integrally integrated by the integral molding, for example, when the skin material is subjected to a strong force in the direction of displacement of the surface of the cushion body during use, the skin material and the cushioning material are used. The shearing force acts between the bodies, and often one part of the buffer is broken and the surface material is peeled off. It is preferable to eliminate the above-mentioned wrinkles and naturally limit the material which can be used as a skin material, and to prevent an unsuitable force between the skin material and the cushion body, and to allow a slight movement between the two. . Therefore, it is possible to use a method in which the surface material is covered with a pre-formed buffer body instead of integrating the skin material simultaneously with the molding of the cushion body.

As described above, in the molding of the cushion body composed of the foamable resin material, a general method of integrating the male adhesive strip is formed, as shown in Fig. 5, the engaging member of the male adhesive strip 1 is molded. The forming surface is placed and fixed on the protruding surface portion 101 of the bottom surface of the mold corresponding to the concave surface of the buffer body to be molded, and the foamable resin material flows into the foamed resin molding die 100, and The cushion body is foam-molded, and the recessed surface of the cushion body is embedded and integrated in a state in which the engaging element forming surface of the molded male fastening tape 1 is exposed to the outside. In the foam molding, it is necessary that the foamable resin material does not flow into the formation region of the male snap element. The cushion body to be molded is covered with a surface material composed of various materials such as a pile-shaped fluff knitted fabric or natural leather or rigid leather which are formed in advance with a cushion body, and the ring-shaped mother of the back surface of the surface material is covered. The engaging element is pressed and held on the engaging element forming surface of the molded male fastening strip 1 integrated with the buffer body, and the surface material is joined and fixed along the concave surface of the buffer body so that the surface material does not escape from the buffer body Float.

In the case of forming the cushioning body, the foaming resin material does not intrude into the forming element forming region of the molded male fastening tape, and is disclosed in, for example, Japanese Patent Laid-Open Publication No. 2000-516485 (Patent Document 1) A number of proposals, such as the specification of the U.S. Patent No. 6,939,596 (Patent Document 2), and the Japanese Patent Publication No. 2005-211198 (Patent Document 3) are proposed.

In the above Patent Document 1, a plurality of male snap elements on one surface of the base tape are erected by integral molding, and a synthetic resin cover for embedding a male snap member disposed at a peripheral portion of the male snap element forming region The cover is formed so as to form an intrusion preventing wall of the foamed resin material around the area where the male engaging element is formed. The inside of the synthetic resin cover may be filled with a resin of the same kind as the cover, or may be filled without using a resin of the same kind as the cover. Further, in order to increase the adhesion to the foamed resin molding die, it is described that particles composed of a material that is attracted by magnetic gas or magnets that are magnetically attracted may be mixed in the synthetic resin cover. It constitutes a resin material.

Moreover, according to the above-mentioned Patent Document 2, the side edge portion outside the engaging element forming region of the molded male fastening tape which is formed by molding a plurality of male engaging members on the surface contains magnetically attractable particles. Further, the anchor wire clip adhesive agent which adheres a plurality of fibers on the circumferential surface is directly fixed to the surface of the flat substrate to form a resin intrusion preventing wall portion.

The male adhesive tape disclosed in Patent Document 3 is a foamed resin material for preventing the cushioning body from being formed on the left and right side edge portions along the longitudinal direction of the long strip-shaped base material made of a thermoplastic resin. The intrusion of the first resin intrusion prevention wall portion extends, and a plurality of male snap elements are provided between the left and right intrusion prevention wall portions, and the male snap elements are divided into the required length in the longitudinal direction of the substrate. In the region, a second resin intrusion preventing wall portion that extends in the width direction of the substrate is formed between the divided regions adjacent to the longitudinal direction. The second resin intrusion preventing wall portion extends in the width direction of the surface of the base material, and prevents the intrusion of the foamed resin material for the cushioning body to be invaded from the longitudinal direction of the base material, and the second resin The upper end portion of the intrusion prevention wall portion has a hook-shaped male engagement element that is engaged with the female engagement element of the other side.

The second resin intrusion preventing wall portion is formed by a resin intrusion preventing lateral wall extending in the width direction of the surface of the substrate, and the resin intrusion prevention lateral wall has a front side from the longitudinal direction of the substrate. a plurality of male snap elements extending in the front-rear direction, the resin intrusion prevention lateral wall prevents the foaming resin from intruding into the engaging element forming region, and has the same engagement element as that formed in the engaging element forming region The male engaging element of the engaging head is joined to the female engaging element on the back side of the cover material to complement the previously engaged portion to ensure the required joining force. The molded male adhesive tape integrated with the cushion body is joined and integrated with the cushion body on the back surface of the base material and the outer side regions of the first and second intrusion prevention wall portions. In order to secure the joint strength between the cushion body and the fastening tape, the back surface of the adhesive tape is formed into an uneven surface, or a non-woven fabric or the like is integrated on the back surface.

Further, according to Patent Document 3, in the above molding of the cushioning body composed of the foamable resin material, in order to make the engaging element forming surface of the formed male adhesive tape described above adhere to a predetermined position of the molding die. Each of the base material side base portions of the first resin-preventing wall portion and the center portion in the width direction of the base material in the vicinity of the molded male adhesive tape is embedded and integrated in the longitudinal direction of the base material. The magnetic wire is composed of a magnetic material that is attracted by magnetic gas or a linear magnet. For the magnetic material to be attracted to the magnetic material, a linear or meandering single sheet disclosed in Japanese Laid-Open Patent Publication No. Hei No. Hei No. Hei No. Hei No. Hei No. Hei No. Hei No. Hei. A metal fiber or a single fiber made of a synthetic resin in which particles composed of a magnetic material that is magnetically attractable as disclosed in Patent Document 5 are mixed. Thus, all of these wire types have excellent flexibility.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Publication No. 2000-516485

Patent Document 2: US Patent No. 6,939,596

Patent Document 3: Japanese Laid-Open Patent Publication No. 2005-211198

Patent Document 4: Japanese Unexamined Publication No. Hei 1-143916

Patent Document 5: Japanese Patent No. 3886965

However, the male adhesive tape disclosed in the above Patent Document 1 can also be understood from the above-described configuration, and is not continuously manufactured, and is manufactured by a male adhesive tape member and a snap member covering the adhesive tape member. Two or more processes for forming the cover of the peripheral engaging element of the region are formed as a single member. Moreover, in the case where the male fastening tape member is a molded fastening tape, the fastening tape members are not continuously but individually molded. Therefore, the male adhesive tape disclosed in Patent Document 1 has a problem that the manufacturing cost becomes high because it cannot be manufactured in a single process.

On the other hand, the male adhesive tape disclosed in the above-mentioned Patent Documents 2, 3, and 5 is also included. In recent years, the molded male adhesive tape is formed by molding a plurality of molding elements for the engaging elements on the circumferential surface. The intrusion preventing layer of the foaming resin material drives the peripheral surface of the rotating mold roller in one direction, and continuously ejects or extrudes the molten resin, and the majority of the engaging elements are formed on the surface of the belt-shaped substrate. The intrusion prevention wall portion is continuously and integrally molded. As a result, the manufacturing cost can be greatly reduced as compared with the male adhesive tape described in Patent Document 1.

Further, for example, in a seat for a vehicle or the like, as described above, in order to obtain an ergonomically optimal seating posture, an uneven surface composed of an appropriate curved surface is formed on the seat surface. The shape of the uneven surface, in particular, the length of the uneven surface is not constant and has various lengths. The molded fastening tape is integrated with the cushion body along a concave surface of the seating surface of the seat cushion having the uneven surface. When the surface material is covered by the cushioning material, the female adhesive tape region having the female engaging element on the back surface of the surface material is pressed to be joined to the engaging element forming region of the fastening tape, and the surface material is loaded with tension. In the buffer body.

In this manner, in the strip-shaped molded adhesive tape which is continuously molded as described above, the uneven surface having different lengths along the length of the cushion body is molded and integrated with the cushion body in a curved state, and it is necessary to previously form a belt-shaped molding. The adhesive tape is adhered to the mold in a curved state along the uneven surface of the mold. Therefore, the molded male adhesive tape needs to be simple and easy to bend in the longitudinal direction and the width direction. In the molded male adhesive tape of the patent document 3, the first resin intrusion prevention wall which is formed along the left and right side edge portions thereof is arranged in two or more rows in an intermittent manner and in a thousand bird shape, and is not The adhesive force to the mold is applied to the base portion of the base material side of the first resin intrusion prevention wall and the base portion of the base material, and the synthetic resin wire material or the linear magnet is mixed with the material that is attracted to the magnetic gas. The long side direction is continuous and buried.

By adopting the above structure, when the unevenness in the adsorption surface of the adhesive tape of the mold is small and close to the plane, the male adhesive tape can be simply and correctly placed at any position on the mold, but in the mold When the unevenness of the adhesive surface of the adhesive tape becomes large, when the unevenness of the curved surface is large, the male adhesive strip is particularly floated from the mold at the end thereof, so that the end of the male adhesive strip is molded. When the part is floated from the mold, at the time of foam molding which is formed later, the foamed pressure-expandable resin material intrudes into the gap between the mold and the formed male adhesive tape, and gradually changes the gap therebetween. When the large side passes over the resin intrusion preventing wall portion of the molded male adhesive tape and enters the engaging element forming region, the engaging force of the molded male fastening tape cannot be exhibited.

This is particularly remarkable when the magnetic material is a linear metal wire as described in Patent Documents 4 and 5. That is, in order to mold and integrate the linear wire from the formation of the fastening tape, since the thermal shrinkage of the resin and the metal is large when the thermoplastic resin is cooled and solidified, warpage occurs in the main body of the fastening tape. Moreover, since the wire is straight, the wire end will be exposed from the end of the fastening tape after the fastening of the fastening tape, or the wire will fall off from the fastening tape. If a thick wire is used to increase the adsorption force by the magnetic force, the flexibility of the fastening tape is lost, and if the thickness of the wire is made thinner, the amount of adsorption of the magnet is lowered. Further, as described in the above-mentioned Patent Documents 2, 3 and 5, when a single fiber made of a synthetic resin mixed with a magnetic powder is used as a magnetic wire, a so-called thermosetting foaming uric acid which is foamed by imparting heat is applied. At the time of ester molding, since the foaming urethane of the usual type is molded at a high temperature, the synthetic resin component may be melted. Moreover, in terms of the effect of shrinkage of the resin during cooling of the molded male adhesive tape, unevenness or warpage is generated in the width direction and the long side direction of the formed male adhesive tape, by the unevenness or warpage thereof. The curved foaming resin may intrude into the gap between the mold and the formed male adhesive strip, and may not exhibit the desired engaging force as the formed male adhesive strip.

Further, in the male adhesive tape described in Patent Document 4, a linear metal wire is used as the magnetic material instead of the linear metal wire. However, the metal wire is a wire width of the resin tape. And fixed to the two sides of the hook, so by the plastic deformation of the wire, once the deformation of the deformed resin tape (substrate sheet) is difficult to restore the original shape, the two sides of the substrate sheet are deformed into a undulating shape, and The mounting surface of the foamed resin molding die does not match, and a gap is formed between the foamed resin molding die and the molded male adhesive tape, and the same problem as described above occurs.

As a result, in the past, the molding of the male adhesive tape has left a lot of room for improvement.

The present invention has been made to solve such a problem, and an object thereof is to provide a molded male adhesive tape which is specifically formed in a continuous strip shape, on the surface of a molding cavity of a molding die for a cushion body, assuming In the case of a large uneven shape, it is also possible to average the magnetic attraction force of the entire molded adhesive tape, and to exhibit the above-described adsorption force, and to expand the foaming resin material into the region where the element is formed. The intrusion is controlled to a minimum and the molded male fastening strip ensures maximum surface bonding.

The above object is effectively achieved by the following molded male adhesive tape of the main structure of the present invention. The molded male adhesive tape has a resin intrusion prevention of a foaming resin material for molding, respectively, on the surface of the left and right side edge portions in the longitudinal direction of the flat substrate made of a thermoplastic resin having a front and back surface. The wall portion and the surface of the flat substrate between the right and left resin intrusion preventing wall portions have an engaging element forming region in which a plurality of male engaging members integrally formed simultaneously with the molding of the flat substrate are disposed. And a molded male adhesive tape formed by a magnetic material which is adsorbed by a foamed resin molding die of the foaming resin material for molding described above by a magnetic attraction force, characterized in that: the magnetic material, The metal wire member that extends in a serpentine shape in the longitudinal direction of the engaging element forming region between the resin intrusion preventing wall portions of the flat substrate is formed.

According to a suitable aspect, the serpentine metal wire is preferably arranged in a serpentine shape by arranging two or more rows in a wide direction toward the surface of the engaging element forming region. The wire is bent in a zigzag shape on the same plane, or formed into a coil shape, and the metal wire is formed and formed by each of the upper and lower faces of the two or more ridges formed simultaneously with the molding of the flat substrate. At the same time, it is integrated into an ideal one.

In the present invention, the metal wire is composed of a single wire or a plurality of wires, and the thickness thereof is preferably 0.05 mm to 2 mm, and the meandering pitch of the metal wire is 0.3 mm to 6 mm. Each of the meandering pitches of the two or more metal wires may be displaced in the longitudinal direction of the flat substrate. It is preferable that the metal wire has a serpentine width of 0.3 mm to 6 mm.

Further, in the present invention, each of the left and right resin intrusion preventing wall portions is fixedly supported by a material different from the flat substrate and the male engaging member, and sealed. It is preferable that the surface is provided with a linear elastic body having a sealing property higher than the apex height of the flat substrate and the male engaging element. The linear elastic body may be formed of an elastic material such as an elastomer or a rubber, but is preferably a fiber-made rope body. Further, the formed male adhesive tape may be a continuous molded product having a necessary length, but the continuous molded product may be divided into a plurality of pieces in the longitudinal direction, and the divided pieces of the formed male adhesive tape will be divided. Each of the flat substrate is connected to the flexible connecting body to have a desired length.

In the present invention, since the metal wire and the fastening tape which are formed in the engaging element forming region between the left and right resin intrusion preventing wall portions are integrated, the metal wire in the engaging element forming region has a large contact area. The amplitude is increased, and the metal wire is firmly integrated with the molded male fastening tape. Further, in the case where two or more metal wires of the meandering are separated in the wide direction of the formed male adhesive tape and arranged side by side, the influence of the plastic deformation of the metal wire is dispersed, and the molded public viscosity is not damaged. The softness of the buckle can ensure and fully utilize the uniform and strong magnetic attraction force of the molded male adhesive strip, and the left and right resin intrusion prevents the wall from being affected by the plastic deformation of the metal wire. In the foam molding, the foaming resin is effectively prevented from intruding into the formation region of the engaging member.

Since the magnetic wire is made of metal, even in the case of a thermosetting type foam molding which is exposed to a high temperature region of 200 ° C or higher, it is of course not caused by deformation such as melting, and does not cause a change in the distribution of the adsorption force by the magnetic force. . Moreover, since two or more serpentine metal wires can be equally disposed on the same plane, warping caused by shrinkage when the molded male adhesive tape itself is formed is less likely to occur, and the ends of the respective metal wires are not It will protrude from the end face of the molded male adhesive strip and will not fall off.

Further, in the present invention, when two or more metal wires are integrally joined to each of two or more raised portions which are raised from the surface of the flat substrate, the arrangement of the parallel metal wires can be determined. The positions do not interfere with each other, and the height of the metal wire can be maximized to the height of the resin intrusion preventing wall portion of the molded male adhesive tape and the top surface of the engaging member, and thus the adsorption of the snake-shaped metal wire The increase in the area and the adsorption area complement each other, and the magnetic attraction force with the foamed resin molding die can be expanded. Here, the height from the surface of the flat substrate to the upper surface of the raised portion including the metal wire is set so as not to interfere with the ring-shaped female engaging element that is engaged with the engaging head. When the height of the engagement is reached, the engagement between the annular female engaging element and the engaging head of the male engaging element can be smoothly completed without being interfered by the raised portion.

When the thickness of the metal wire is 0.05 mm to 2 mm, the meandering pitch of the metal wire is 0.3 mm to 6 mm, and if the meandering width is 0.3 mm to 6 mm, the metal wire is less likely to be caused by plastic deformation. The undulation phenomenon causes the foamed resin molding die to adhere to the resin intrusion preventing wall without a gap. Further, since the metal area per unit area is increased, it is of course possible to increase the magnetic attraction force of the foamed resin molding die. If it exceeds the range, the adsorption force by the magnetic force is lowered, or the undulation of the adhesive tape due to the plastic deformation of the metal wire is between the foamed resin molding die and the resin intrusion preventing wall. A gap is generated, and the foamed resin easily intrudes into the formation region of the engaging member. Further, in the case where the phase of the meandering pitch of each of the metal wires is displaced toward the longitudinal direction of the flat substrate, since the sizes of the meandering pitches are the same between the adjacent metal wires, the phases are mutually adjacent. Therefore, the difference between the stronger part and the weaker part of the magnetic force can be eliminated as much as possible, so that the adsorption force by the magnetic force uniformly acts on the entire adhesive strip.

Further, in the present invention, when the linear elastic body having the sealing property is continuously arranged in the longitudinal direction along the upper end portion of the resin intrusion preventing wall portion, even the magnetic adhesive tape having the same magnetic properties as the conventional one is used. By using the magnetic gas adsorption force, the linear elastic body can be strongly adhered to the fastening tape installation surface of the foamed resin molding die while being elastically deformed, so that the resin intrusion prevention of the linear elastic body can be prevented. There is a strong sealing force between the wall portion and the foamed resin molding die. Therefore, even if the surface of the adhesive tape of the mold has irregularities, or the unevenness or warpage of the adhesive tape itself is large, the linear elastic system is disposed along the fastening tape of the foamed resin molding die or the adhesive. The shape of the concave and convex surface of the belt itself is very good, and no gap is formed between the molded male adhesive tape and the cavity of the foamed resin molding die, and the intrusion of the foamed resin material can be effectively prevented. In order to secure the sealing property, the height of the exposed surface of the linear elastic body from the surface of the flat substrate is set to be equal to the height of the apex of the male engaging element or equal to or higher than the height of the apex.

Furthermore, the area of the foamed resin molded body in which the molded male adhesive tape is integrated is not limited to a straight line, and for example, the surface of the foamed resin molded body may be curved upward or downward or left and right. In such a case, the molded male adhesive tape of the present invention must also be easily deformable along the shape of the integrated region of the foamed resin molded body. At this time, as shown above, the formed male adhesive strip is formed into a continuous formed male adhesive strip without a long strip, and a split sheet having a short length of a desired length is formed, and the split pieces are made into a flexible joint. The connection can be arbitrarily bent in the up-down direction or the left-right direction, and the uneven shape or the left-right curved shape which is integrated in the integrated region of the foamed resin molded body can be easily deformed.

[Embodiment of the Invention]

Hereinafter, a representative embodiment of the present invention will be specifically described with reference to the drawings in accordance with the embodiments. 1 to 4 show suitable embodiments of the present invention.

As shown in Fig. 1, the belt-shaped molded male fastening tape 1 of the present embodiment (hereinafter, simply referred to as a fastening tape) has a plurality of hook-shaped male engaging members 3 integrally formed with the flat substrate 2 The engaging element forming region 9 formed on the surface of the one surface of the flat substrate 2 except for the left and right side edge portions in the width direction, and the longitudinal edge direction on the left and right side edge portions of the flat substrate 2 The resin intrusion preventing wall portion 4 that extends linearly is vertically disposed. In the present embodiment, the resin intrusion preventing wall portion 4 is formed on the left and right side edge portions adjacent to the engaging element forming region 9, and each of them is disposed in parallel with the longitudinal direction at a desired interval. 1 and the second linear elastic body holding portions 4a and 4b; and the second linear elastic body holding portion 4b disposed on the outer edge portion of the fastening tape 1 on the opposite side of the engaging element forming region 9 The outer wall portion 4c is disposed; and the linear elastic force of the linear elastic body 7 is supported from below by being disposed between the first and second linear elastic body holding portions 4a and 4b and raised from the surface of the flat substrate 2 Body support portion 4d. Here, the resin intrusion preventing wall portion 4 can prevent the intrusion of the resin so that the engaging element forming region 9 does not lose the engaging force, and it is not always necessary to prevent the intrusion of the resin intact.

Further, in the illustrated embodiment, the resin intrusion preventing wall portion 4 is disposed close to the engaging element forming region, and the outer wall portion 4c of the resin intrusion preventing wall portion 4 is along the outermost side edge of the fastening tape 1 While provided, the invention is not limited to such configurations. For example, the illustration is omitted, and the resin intrusion preventing wall portion 4 may be provided on the surface of the flat substrate 2 so as to be largely away from the engaging element forming region, or the resin intrusion preventing wall portion 4 may be formed on the outer wall portion 4c. It is disposed on the outer side of the first and second linear elastic body holding portions 4a and 4b, and is disposed on the side of the engaging element forming region.

Then, the structure of the largest feature of the present invention is such that the two or more linear magnetic bodies are arranged side by side in the wide direction of the flat substrate 2 in the above-described engaging element forming region 9 at a required interval. The body is composed of a thin metal wire 5, and the metal wire 5 is not only linear, but has a zigzag shape as shown in Figs. 1 and 4 . According to the example of the drawing, the metal wire 5 is formed in a zigzag shape in a wide direction in the width direction of the flat substrate 2 and is formed to meander in the longitudinal direction. However, the present invention is not limited to such a shape, and includes For example, the front ends of the L-shape are sequentially connected on the same plane and are bent at right angles into a zigzag shape or a coil spring shape. As the material of the metal wire 5, an iron wire is usually used, but a thin wire made of an alloy such as cobalt or nickel may be used.

The metal wire 5 may be a single wire, or a plurality of thin wires may be twisted together. However, it is preferable to have sufficient flexibility as a wire. Therefore, the thickness of the metal wire 5 used in the present invention is such that the diameter d is 0.05 mm to 2 mm, preferably 0.1 mm to 1 mm, and the meandering pitch p is 0.3 mm to 6 mm, preferably 0.5 mm to 3 mm. The meandering width w is 0.3 mm to 3 mm, preferably 0.5 mm to 3 mm.

When the metal wire 5 is made to have the above-described numerical range, the undulation phenomenon due to plastic deformation of the metal wire is less likely to occur, and the foamed resin molding die 100 (see FIG. 5) and the resin intrusion preventing wall portion 4 can be eliminated. The gap is tightly closed. Further, the amount of metal per unit area of the fastening tape 1 is increased to a large extent with respect to the linear metal wire, and the adsorption force with those of the foamed resin molding die is enhanced. If it exceeds the above range, the adsorption force by the magnetic force becomes weak, or the undulation of the fastening tape 1 due to the plastic deformation of the metal wire causes the foaming resin molding die 100 and the resin intrusion preventing wall portion 4 to be between. A gap is generated, and the foamed resin material is liable to intrude into the formation region of the engaging member, and it is likely to lose the function of the fastening tape 1 after the foam molding.

The metal wire 5 may be inserted and fixed only to the flat substrate 2 having the engaging element forming region 9 in which the plurality of engaging elements 3 are formed as described above, but in the present invention, The stabilization of the arrangement posture of the metal wire 5 and the uniformity of the arrangement position are important. Therefore, as shown in FIGS. 1 and 3, the engagement element formation region 9 of the flat substrate 2 is formed. The raised portion 6 is fixedly supported by the metal wire 5 from the surface of the flat substrate 2. The raised portion 6 is matched with the number of the metal wires 5 disposed in the engaging element forming region 9, and is formed to extend in the longitudinal direction of the engaging element forming region 9 at a predetermined interval therebetween. A rectangular ridge of a section above the strip. Each of the metal wires 5 is separated and disposed in two or more ridge portions 6 formed at intervals.

The arrangement position of each of the metal wires 5 disposed in the swelled portion 6 is arbitrary, but it is arranged as close as possible to the mounting surface of the foamed resin molding die 100 (see FIG. 5) on which the fastening tape 1 is placed. The magnetic adsorption force is ideal. According to the present embodiment, as shown in FIGS. 1 and 3, the metal wire 5 is fixed and integrated so that one of the peripheral surfaces remains on the upper surface of the ridge portion 6. However, even if the metal wire 5 is fixedly integrated on the upper surface of the ridge portion 6, the key male snap element of the key male snap element 3 that is engaged with the other side cannot enter the engagement of the engaging head portion 3b. The Ministry also failed to achieve the function as a Velcro tape. Therefore, the height of the above-mentioned raised portion 6 is inevitably limited. In other words, the height H1 of the raised portion 6 from the surface of the flat substrate 2 is such that the gap between the upper surface of the raised portion 6 and the front end surface of the engaging head portion 3b does not hinder the ring of the other side (not shown). The intrusion of the female snap element ensures a sufficient degree of breadth.

Further, as the material of the fastening tape, a thermoplastic resin such as polyamide resin, polyester resin, polypropylene resin, PVC, ABS resin, polyethylene resin or polystyrene resin is used. Further, the male engaging element 3 is said to be engageable with the female engaging element of the ring of the other side, and has a mushroom shape or a coconut tree shape as in the above hook shape, and is widely known from the past. All the snap-fit components of all shapes.

The first and second linear elastic body holding portions 4a and 4b, the outer wall portion 4c, and the linear elastic body supporting portion 4d are intermittently formed in the longitudinal direction of the flat substrate 2, and are formed intermittently. Among the divided sandwiching walls 4a' and 4b' for dividing the first and second linear elastic body holding portions 4a and 4b, as shown in Fig. 1, the mountain-shaped pieces which are narrowed upward are shown. The configuration is such that the right and left sides are opposed to each other in the width direction of the flat substrate 2 . As shown in FIG. 1 , FIG. 2 , and FIG. 3 , the outer wall portion 4 c is first and second linearly arranged in the longitudinal direction on the left and right side edges of the flat substrate 2 . In the elastic body holding portions 4a and 4b, the gap between the divided holding walls 4b' of the second linear elastic body holding portion 4b disposed on the side opposite to the engaging element forming region 9 is plugged It is formed in close contact with each other in the longitudinal direction.

The linear elastic body supporting portion 4d is divided between the first and second linear elastic body holding portions 4a and 4b as shown in Figs. 1, 2, and 3, respectively. The gaps in the longitudinal direction of the holding walls 4a' and 4b' are formed by the blocks having a low height which are intermittently arranged on the ground, and are raised on the surface of the flat substrate 2, and a part of the first and second portions are The opposing faces of the divided elastic sandwiching portions 4a and 4b are formed integrally with each other so as to be in close contact with each other.

In the above-described embodiment, the engaging element 3 is vertically erected at a predetermined distance in the longitudinal direction and the wide direction as shown in Figs. 1, 2, and 3. Each of the engaging elements 3 has a rising portion 3a that rises perpendicularly from the surface of the flat substrate 2, and a rear end that is bent toward the longitudinal direction of the flat substrate 2 at the upper end of the rising portion 3a. The extended hook-shaped engaging head 3b. Further, the first rib 3c having a low height on the left and right side surfaces in the width direction of the flat substrate 3a and the side plate base on the side of the adjacent element on the side of each of the first ribs 3c are provided. The second rib 3d having a small width in the longitudinal direction of the material and having a height equal to the height of the apex of the engaging head portion 3b is integrally molded with the engaging element 3. In the above-described engaging elements 3 which are disposed in the wide direction of the flat substrate 2, the above-described respective engaging elements 3 disposed at positions closest to the left and right side edge portions of the flat substrate 2 are The outer side surface of the second rib 3d and the inner side surface of the first linear elastic body holding portion 4a are integrally joined. The second ribs 3d adjacent to the engaging elements 3 provided in the wide direction are disposed between the pair of resin intrusion preventing wall portions 4 by forming the same height and being in close contact with each other. The resin flowing in from the resin in the longitudinal direction invades the prevention wall.

According to the present embodiment, as shown in FIG. 4, the surface side of the flat substrate 2 is located on the top side of the engaging element 3 or the first and second linear elastic body holding portions 4a and 4b, and The linear elastic body 7 is inserted into the space portion formed between the first and second linear elastic body holding portions 4a and 4b and the upper surface of the linear elastic body supporting portion 4d. The linear elastic body 7 is made of a material which is easy to bend and which is elastically deformed easily, for example, a fiber rope, a rubber or an elastomer, and the like, and is adsorbed or magnetically adsorbed for magnetic gas. In the case of the magnetic property, the central portion of the wire material composed of the elastic material may be used as a core material, for example, a single fiber in which a synthetic resin is doped with magnetic particles composed of an alloy of iron, cobalt, nickel, or the like, or These metal thin wires are inserted into the integration.

Then, the linear elastic body 7 is preferably made of a material which is softer than the material constituting the flat substrate 2 and the engaging element 3, for the reason of the latter. In addition, the term "soft" as used in the present invention means a substance having a larger amount of deformation than the deformation amount of the flat substrate 2 and the engaging member 3 when external force is applied, that is, according to a durometer hardness test. The measured value is lower than that of the flat substrate 2 and the engaging element 3. Further, in the present invention, the linear elastic body 7 is not an essential constituent member, and for example, the linear elastic body 7 may be excluded in the case where the magnet disposed in the foamed resin molding die has a strong magnetic force. In the case of the linear elastic body, it is preferable to arrange two or more wall portions in which a plurality of divided wall portions intermittently formed in the longitudinal direction are disposed as described in the prior art document 3 or 5. Of course, it is not necessary to divide, and it may be one or more wall portions that are continuous in the longitudinal direction.

Further, in the present embodiment, a plurality of fins 8 are extended on the same plane as the flat substrate 2 at a predetermined interval along the left and right side faces of the flat substrate 2 of the fastening tape 1. The left and right fins 8 are arranged in a zigzag shape. The fins 8 are embedded in the inside of the foam at the time of foam molding, and are provided to firmly fix the fastening tape 1 to the foam. In the same manner as in the related art, a non-woven fabric or a foamed material having a plurality of loops may be integrally formed on the back surface of the flat substrate 2 opposite to the surface on which the engaging elements are formed, instead of the fins 8 . A single process is used to form the portion, and in this embodiment, the fins 8 are used.

As shown in Fig. 5, the fastening tape 1 of the present embodiment having the above-described configuration is foamed at the time of molding a foam such as a cushioning body (not shown) made of a foamable resin material. The predetermined position of the inner surface of the cavity for molding the foam of the resin molding die 100 is such that the engaging element forming surface faces the inner surface of the foamed resin molding die. The predetermined position of the inner surface of the cavity provided with the fastening tape 1 is a convex projection surface 101 of the bottom surface of the mold corresponding to the concave surface of the seating surface of the cushion body to be formed. When the installation surface formed by the convex surface portion 101 of the fastening tape 1 is assumed to be a curved surface that is curved upward, the flat-shaped fastening tape 1 shown in Fig. 5 is along the curved surface of the convex surface 101. When the fixing is performed, when the fastening tape 1 does not contribute to the abutting force of the foamed resin molding die 100, the elastic tape of the flat substrate 2 is particularly in the direction of the curved surface. The end portion is floated from the foamed resin molding die 100. When a part of the fastening tape 1 is floated from the foamed resin molding die 100, the resin intrusion preventing wall is lifted from the foamed resin molding die 100 even if a resin intrusion preventing wall is formed in the peripheral portion of the fastening tape 1, for example. The foamed resin intrudes through the gap with the foamed resin molding die, and covers most of the engaging element forming region 9 with the foamed resin, and loses the function of the fastening tape as the engaging member.

Usually, a plate-shaped magnet 102 is embedded in the position where the fastening tape of the foamed resin molding die 100 is placed.

The fastening tape 1 of the present embodiment is formed by bending each of the metal wires 5 extending in the longitudinal direction while being bent to the left and right, and extending in the longitudinal direction to the two or more ridges of the engaging element forming region 9 Since the upper surface of each of 6 is fixed and integrated, it is different from a linear metal wire as in the past, and even if it is a magnetic wire of the same thickness, the increase in the adsorption area itself and the distribution of magnetic lines of force can be greatly increased. The adsorption force of the magnetic force is equally distributed on the entire formation region of the engaging element of the fastening tape 1, so that the fastening tape 1 is firmly adhered to the cavity surface of the foamed resin molding die 100.

In addition, in the present embodiment, the metal wire which is serrated in a zigzag manner is disposed on the both side faces of the fastening tape as in the adhesive tape described in Patent Document 4, and two or more snakes are serrated. The metal wires 5 are uniformly disposed in the wide direction of the engaging element forming region 9 of the fastening tape 1 at a desired interval. Therefore, not only the magnetic force adsorption force acts uniformly on the entire surface of the engaging element forming region 9, Moreover, even if the metal wires 5 are plastically deformed by an external force, the elastic restoring force of the flat substrate 2 and the engaging element forming region 9 does not affect the entire engaging element forming region 9 but ends at the end. Since the deformation is localized, the function of the fastening tape 1 integrated with the cushioning body for the foamed resin molded article is not so affected.

Further, since each of the metal wires 5 which are serrated in a zigzag shape is firmly fixedly supported at a desired fixing position which is juxtaposed in the longitudinal direction and extends in the ridge portion 6 of the engaging element forming region 9, the respective metal wires 5 are The fixed posture ensures that the desired adsorption force by the magnetic force and the entirety of the engaging element forming region 9 are ensured, and the distribution of the adsorption force is equalized. Further, it is assumed that one of the fastening tape mounting surface of the foamed resin molding die 100 or the fastening tape 1 itself is bent into irregularities, and two or more independent metal wires 5 are arranged in parallel, so that it is not particularly damaged. The softness of the buckle 1 is easy to be suitable for the adhesive tape mounting surface of the foamed resin molding die 100, and is easily adhered to the concave-convex surface of the fastening tape mounting surface to be adsorbed.

Furthermore, in the present embodiment, each of the upper end portions of the resin intrusion preventing wall portion 4 formed on the side edge portion of the flat substrate having the left and right sides of the engaging element forming region 9 is disposed in a line shape having a sealing property. In the elastic body 7, the linear elastic body 7 is strongly pressed against the foamed resin molding die 100 by the adsorption force of the zigzag-shaped metal wire 5 having the strong magnetic force as described above, and is elastically deformed, assuming buffering. The seat surface of the body is greatly curved, and can be evenly connected along the curved surface thereof. There is no such thing as: the position of the fastening tape 1 is changed, or the end of the fastening tape 1 is floated from the foaming resin molding die. The general situation.

In the present embodiment, the fastening element 3 having the above-described configuration of the fastening tape 1 and the first and second linear elastic body holding portions 4a and 4b and the outer wall as the resin intrusion preventing wall portion 4 are provided. Since the portion 4c and the linear elastic body supporting portion 4d are formed to be in close contact with each other, the plurality of engaging elements 3 including the first and second ribs 3c and 3d and the first and second linear elastic clips are provided. The substantial resin intrusion preventing walls of the holding portions 4a and 4b, the outer wall portion 4c, and the linear elastic body supporting portion 4d are formed in a plurality of rows in the longitudinal direction of the fastening tape 1, and the substantial front and rear side resins are The intrusion prevention means substantially prevents the intrusion of the foamed resin material from the longitudinal direction of the fastening tape 1. In addition, since all of the first and second linear elastic body holding portions 4a and 4b, the outer wall portion 4c, and the linear elastic body supporting portion 4d are divided in the longitudinal direction, even if it is slightly rigid The fastening tape 1 formed of the material is also easily bent in the longitudinal direction thereof, and is easily deformed and deformed on the uneven surface of the foamed resin molding die 100. As a matter of course, in the same manner as the fastening tape disclosed in Patent Document 3 or 5, a plurality of lateral walls may be intermittently formed in the region where the engaging member is formed in the longitudinal direction of the flat substrate, or may be One or more walls continuous in the longitudinal direction. It is also possible to provide an engaging element at the upper end of the transverse wall itself. Further, a wall portion corresponding to the resin intrusion preventing wall portion having a linear magnetic body may be provided as a lateral wall structure.

At the time of foam molding of a buffer body or the like, as shown in Fig. 6, the foamed material injected into the foamed resin molding die 100, for example, the polyurethane resin 200 is foamed in the mold and filled with the cavity. Inside. At this time, the fastening tape 1 is adsorbed and adhered to the magnet 102 embedded in a desired position of the foamed resin molding die 100. On the other hand, the foaming pressure of the foamed resin material may be between the adsorption surface of the foamed resin molding die 100 and the second linear elastic body sandwiching portion 4b and the outer wall portion 4c of the fastening tape 1. Create a little gap. However, according to the present embodiment, as described above, the adhesive force of the foamed resin molding die 100 of the linear elastic body 7 is large, and the elastic deformation linear elastic body 7 of the linear elastic body 7 is also uniformly distributed over the entire length. In the foamed resin molding die 100, the foaming resin molding die 100 is foamed by a gap between the adsorption surface of the foamed resin molding die and the second linear elastic body sandwiching portion 4b and the outer wall portion 4c of the fastening tape 1. The material is surely prevented from intruding by the above-mentioned linear elastic body 7.

Here, as in the present embodiment, when the setting surface of the fastening tape 1 is a flat surface, the sealing surface is set to be equal to the height of the apex of the male engaging element 3, or higher, thereby preventing the polyurethane resin 200 invasion. Further, when the adhesive tape installation surface of the mold is not flat and formed into a concave shape, the height of the resin intrusion prevention wall may be formed lower than that of the engagement element 3, and the engagement element 3 may be accommodated in the concave portion. The periphery of the concave portion is in close contact with the resin intrusion preventing wall. Moreover, since the flat substrate 2 has the above-mentioned fins 8, the fastening tape 1 can be integrally and firmly attached to the foamed molded article.

The foam molding material is not limited to a polyurethane, and for example, polystyrene, polyvinyl chloride, polyolefin, polyester, polyamide, synthetic rubber or the like may be used in addition to the polyurethane.

The fastening tape 1 of the present invention having such a structure can be continuously manufactured by, for example, a manufacturing apparatus shown in Fig. 7. Simply explain this. In addition, the manufacturing apparatus of the fastening tape 1 of the present invention is not limited to the example shown in Fig. 7. For example, when the linear elastic body 7 having the above-described sealing property is excluded, the above-described Patent Document 5 can be applied. A continuous manufacturing device for the fastening tape.

According to the manufacturing apparatus shown in Fig. 7, the continuous extrusion nozzle 301 of the molten resin material is opposed to the circumferential surface of the mold roller 300 that is driven to rotate in one direction. A plurality of male snap element molding cavities 302 are formed in a central portion of the peripheral surface of the mold roller 300, and both end edges of the circumferential surface in the axial direction extend in the circumferential direction to be intermittently or continuously formed. The plurality of linear elastic body holding portions 4a and 4b, the outer wall portion 4c, and the linear elastic body supporting portion 4d have a plurality of molding holes for forming the resin intrusion prevention wall portion 4 (not shown). Further, a cavity area for forming the engagement element forming a plurality of male engagement element molding cavities 302 is formed between the molding cavity portions for the resin intrusion preventing wall portion 4, and the axial direction is formed. Two or more embossed molding holes (not shown) that extend linearly in the circumferential direction at predetermined intervals.

On the other hand, a position between the die roller 300 and the continuous extrusion nozzle 301 is formed above the position of the opposing surface of the die roller 300 disposed opposite to the continuous extrusion nozzle 301 and the continuous extrusion nozzle 301. The gap is provided to supply the wire supply roller 150 and the wire guiding roller 151 of the metal wire 5 having a zigzag shape. Further, a pickup roller 303 is provided on the downstream side of the mold roller 300 at a position opposite to the surface of the continuous extrusion nozzle 301 in the rotational direction of the die roller. Further, a pair of upper and lower pressing rollers 304 and 305 are provided on the downstream side of the hooking belt transfer path of the pickup roller 303. The upper pressing roller 304 has a heating portion (not shown) inside, and heats the upper pressing roller 304 to a desired temperature.

A linear elastic body supply portion 152 is provided obliquely upward on the upstream side of the pair of upper and lower pressing rollers 304 and 305, and the linear elastic body 7 is synchronized with the rotational speeds of the pair of upper and lower pressing rollers 304 and 305. The fastening tape introduction portion between the pair of upper and lower pressing rollers 304 and 305 is supplied and joined to the fastening tape 1 . At this time, the linear elastic body 7 is joined so as to be inserted between the first and second linear elastic body holding portions 4a and 4b of the above-described fastening tape 1.

The molten resin material extruded from the continuous extrusion nozzle 301 is continuously formed on the circumferential surface thereof by the rotation of the die roller 300 to form the fastening tape 1 having the above-described structure. At this time, the zigzag-shaped metal wire 5 supplied from the wire supply roller 150 is introduced into the upper gap between the die roller 300 and the continuous extrusion nozzle 301 so as to be along the opening end surface of the cavity for molding the ridge portion. It moves with the rotation of the die roller 300 and is integrated with the fastening tape 1 between its movements. When the fastening tape 1 formed on the circumferential surface of the die roller 300 is held by the peripheral surface of the die roller 300 and is rotated halfway, the pickup roller 303 is continuously peeled off from the circumferential surface of the die roller 300. The next side is picked up. The picked-up fastening tape 1 is introduced between the pair of upper and lower pressing rollers 304 and 305. Further, although not shown in the drawings, the inside of the lower half of the die roller 300 is provided with a coolant, and a cooling water tank for the lower half of the die roll 300 is provided.

As shown in Fig. 7, when the fastening tape 1 and the linear elastic body 7 are joined between the pair of upper and lower pressing rollers 304 and 305, the linear elastic body 7 is as shown in Fig. 3, by a pair of upper and lower sides. The pressing rollers 304 and 305 are press-fitted between the first and second linear elastic body holding portions 4a and 4b of the fastening tape 1. At the same time, the upper ends of the first and second linear elastic body holding portions 4a and 4b are heated and pressed by the upper heating pressing roller 304 to be softened and deformed, and are sandwiched between the first and second linear elastic bodies. The upper ends of the portions 4a and 4b are formed with locking portions 4a" and 4b", respectively, and the linear elastic bodies 7 are supported by the first and second linear elastic body holding portions 4a and 4b and the linear elastic body supporting portion. Between 4d. The manufacturing apparatus of the fastening tape is formed by intermittently forming the linear elastic body supporting portion 4d positioned on the lower surface of the linear elastic body 7 as shown in Fig. 1, and is capable of molding a molding having high flexibility in the longitudinal direction. Velcro tape. However, in the case where the adhesive tape mounting surface of the foamed resin molding die 100 is flat, the linear elastic body supporting portion 4d may be formed continuously in the longitudinal direction of the fastening tape 1.

The adhesive tape 1 of the present invention produced in this manner is molded integrally with a buffer body (not shown) made of a foamable resin material, and as shown in FIG. 5, the strip is continuous as described above. After the above-mentioned fastening tape 1 is cut into a desired length, the engaging element forming surface of the engaging member 3 faces the convex surface portion 101 of the foamed resin molding die 100 corresponding to the depressed portion of the cushioning body. Placed. A magnet 102 is embedded in the protruding surface portion 101 of the foamed resin molding die, and when the fastening tape 1 is placed on the protruding surface portion 101, the attractive adhesive tape 1 of the magnet 102 is sandwiched by the linear shape. The elastic body 7 is attracted and is automatically sorbed and fixed along the convex portion 101 in a desired posture.

Here, the foamable resin material is injected into the foamed resin molding die, and the foamed resin is spread over the back surface of the fastening tape 1 and the periphery of the second linear elastic body sandwiching portion 4b and the outer wall portion 4c. The molding die is comprehensive and foaming begins during that period. At this time, the fastening tape 1 is positioned and fixed by the suction action of the magnet 102 of the foamed resin molding die 100, and the position is not moved even by the flow of the foamable resin material and the foaming pressure. In addition, the foamable resin material which flows as described above passes between the first and second linear elastic body holding portions 4a and 4b, the outer wall portion 4c, and the linear elastic body supporting portion 4d of the fastening tape 1. The gap formed is invaded into the engaging element forming region 9 of the engaging element 3, but is prevented by the first and second linear elastic body holding portions 4a and 4b, the linear elastic body 7, and the like. The film is blocked and eventually does not reach the area where the engaging element is formed, and is foamed and solidified.

Fig. 8 shows a modification of the above embodiment shown in Figs. 1 to 4 .

In this modification, as shown in Fig. 8, as shown in Fig. 5, the molded male fastening tape 1 of the above embodiment is formed by molding a plurality of divided pieces 1a composed of small pieces, and dividing the divided pieces. The end portions in the longitudinal direction of 1a are connected to each other by a flexible connecting body 1b, and have a desired length of the fastening tape 1. In the same manner as the fastening tape 1 of the above-described embodiment, the surface of the upper surface of the flat substrate 2 is erected in the width direction and the longitudinal direction of the flat substrate 2 in the same manner as the fastening tape 1 of the above-described embodiment. The engaging element forming region 9 composed of the plurality of engaging elements 3 and the left and right side edges along the width direction of the first surface of the flat substrate 2 are disposed to prevent the left and right sides of the flat substrate 2 from being removed. The resin intrusion preventing wall portion 4 in which the side edge portion faces the foaming resin in which the engaging element forming region 9 enters is invaded. The engaging member 3 is constituted by the same constituent members as those of the above embodiment.

According to the present modification, the flexible connecting body 1b is made of a long and flexible synthetic resin single fiber of a linear body made of a synthetic resin. The flexible connecting body 1b is a block integrally formed on a flat substrate in the molding of the long molded male fastening tape 1 by the manufacturing method described in the specification of the U.S. Patent Application Serial No. 12/355,933, for example. The ridges 2a are embedded and integrated in the longitudinal direction. The synthetic resin-made single fiber has a sufficient length for connecting the plurality of divided pieces 1a, and preferably has a sufficient length for the plurality of divided pieces 1a to be continuous from one end to the other end in the longitudinal direction, and A part of each end portion of each divided piece 1a is exposed. In addition, the flexible connecting body 1b of the modified example is not limited to the long synthetic resin single fiber as described above, and may have a sufficient length to the end portions of the divided divided pieces 1a. A short strip of synthetic resin monofilament. Alternatively, it may be a wide and narrow band-shaped connecting piece which has the same material as the divided piece 1a and has the same structure and is integrated with the adjacent divided piece 1a.

Further, there is a case where a flexible metal or synthetic resin small plate is connected between the ends of the adjacent divided pieces 1a, or iron powder, nickel powder, cobalt powder, or the like may be used. Or a single metal fiber of a synthetic resin selected from at least one magnetic material such as a magnet powder, or a metal wire having a magnetic material such as Fe, Ni, Co or the like in which a plurality of metal wires are twisted together, in place of the synthetic resin sheet. fiber. Moreover, the use of the meandering metal wire 5 used in the present invention is used for the flexible connecting body, or the synthetic resin single fiber is serrated or coiled, thereby improving the bending property of the fastening tape 1, and The flexible connecting body is prevented from coming off the fastening tape 1.

Further, in the present modification, each of the divided pieces 1a is formed by integrally molding the metal wire 5 of the two or more linear magnetic members constituting the characteristic portion of the present invention in the above-described engaging element forming region 9. The upper surface of the above-mentioned raised portion 6 is juxtaposed and fixed. The effect is substantially unchanged from the above-described embodiments. Further, the resin intrusion preventing wall portion 4 is also provided with the same structure as that of the above-described embodiment, and each of the resin intrusion preventing walls 4 is divided at a predetermined distance in the longitudinal direction.

A plurality of the engaging elements 3 and the second ribs 3d formed in the engaging element forming region 9 are arranged in a plurality of rows in the width direction and the longitudinal direction of the flat substrate 2, and are modified in this embodiment. In the example, the engaging element 3 and the second rib 3d having the same configuration as that of the above-described embodiment are provided as a unit, and the side surfaces of the plurality of engaging elements 3 are closely contacted and arranged in a wide direction in the direction of the flat substrate. The course is arranged in a plurality of rows at a required interval in the longitudinal direction of the flat substrate. The course in which the plurality of engaging elements 3 and the second ribs 3d are in close contact with each other, that is, the direction in which the direction in which the resin intrusion preventing wall portion 4 extends is substantially perpendicular, constitutes a resin intrusion preventing wall portion. In other words, the adhesion of the above-described engaging elements 3 prevents the intrusion of the foamed resin material which is to be invaded from the longitudinal direction of each of the divided pieces 1a toward the engaging element forming region during the molding of the foamed resin molded body. Further, the resin intrusion preventing wall formed in the course does not necessarily need to be a combination of the engaging element 3 and the second rib 3d, and may be formed only by the engaging element 3 or only by the second rib 3d. The resin invades the wall.

In the resin intrusion preventing wall portion 4 of the present modification, unlike the above-described embodiment, a plurality of the engaging elements 3 which are arranged in close contact are vertically arranged in the three rows of the left and right side edges of the flat substrate 2 The resin intrusion preventing wall 4e is formed, and the linear elastic body having the sealing property is removed from the upper portion of the resin intrusion preventing wall 4e. The resin intrusion preventing walls 4e disposed between the innermost sides of the resin intrusion preventing walls 4e are connected by the respective engaging element rows, and the number of engaging elements and the engaging elements are not reduced more than ever. density. Therefore, the engagement ratio with the female engaging element composed of the loop or the like is not reduced, and the joining force is not changed from the bonding force of the conventional general adhesive strip. Further, the engaging element row extending in the width direction of the flat substrate 2 itself, in order to prevent the intrusion of the foamed resin material to be invaded from the longitudinal direction, for example, when the divided piece 1a is formed, even if it is continuous The formed male adhesive tape 1 is cut into an arbitrary length, or the molded male fastening tape 1 is cut while leaving a part of the flexible connecting body 1b, so that the divided pieces 1a are formed and cut in the longitudinal direction. The course of the engaging element 3 as the resin intrusion preventing wall is surely present in the vicinity of the broken edge, and can be cut irrespective of the cutting position or the cut shape of the belt-shaped molded male fastening tape 1.

Fig. 9 is a view showing a modification of the present invention in place of the fins 8.

As described above, the fins 8 are formed by extending rectangular fins from the left and right side edges of the flat substrate 2 of the male molded fastening tape 1 in the longitudinal direction at a required interval, and are formed at the time of foam molding. The foamed resin material 200 is molded and integrated on the front and back surfaces of the fins 8, and has a function of reliably and strongly bonding the fastening tape 1 to the foamed molding.

In the modification shown in FIG. 9 , the entire flat substrate 2 of the fastening tape 1 is passed over the resin intrusion preventing wall portion 4 formed on the left and right side edges, and is continuously extended over the entire length. The square extension is provided in place of the above-described fins 8 in the above embodiment. Further, a plurality of hook-like projections 10 are protruded from the outer side edge portion surface of the extended portion 2c of the flat substrate 2 . In the example of the figure, a plurality of the hook-shaped protrusions 10 are arranged in two rows on the surface of the extending portion 2c along the length direction, and further, the inner side of the hook-shaped protrusion row adjacent to the two rows is used for A plurality of intrusion suppression walls 10a that prevent the intrusion of the foamed resin are provided to extend across the required gap.

In the modified example, the height of the intrusion suppression wall 10a from the surface of the base material is the same as the height of the engaging element 3 and the outer wall portion 4c, and the hook-shaped projection 10 similarly has a height higher than the above-described intrusion suppression. The height of the wall 10a is still lower. Further, the hook-like projections 10 and the intrusion suppressing wall 10a are integrally molded simultaneously with the molding of the flat substrate, that is, the extended portion 2c, similarly to the other molded portions. The other structures are substantially unchanged from the above-described embodiments. Therefore, in this modification, the same reference numerals and constituents as those of the above-described embodiments are used except for the components different from the above-described embodiments.

With such a configuration, when the fastening tape 1 is fixedly integrated with the foamed molded article at the same time as the foamed molded article such as the molding cushion body, the extended portion 2c also includes the hook-shaped projection 10 and the flat plate. The back surface of the base material 2 is embedded in the foamed resin material integrated in the foaming. By the presence of the above-described hook-like projections 10 during the embedding, not only the anchoring effect on the foamed molded body but also the engaging effect with the foamed molded body can be exerted, and the adhesive for the foamed molded body can be exhibited. The fixing strength of the belt 1 is further improved. Further, the intrusion suppressing wall 10a is used to control the amount of the foaming resin which reaches the outer wall portion 4c of the fastening tape 1 at the time of foam molding, and has a large amount of foaming resin to the engaging element forming region 9 in advance. Intrusion function.

Further, in the above-described embodiments and modifications, the flat surface of the flat substrate 2 of the fastening tape 1 opposite to the surface on which the engaging element 3 is formed is formed into a flat surface, but it may be, for example, also on the back surface. Various locking pieces having the same shape as the above-described hook-shaped projections 10 are provided.

1. . . Molded male adhesive tape (bonding tape)

1a. . . Split piece

1b. . . Flexible connector

2. . . Flat substrate

2a. . . Blocky ridge

2c. . . Extension

3. . . Clamping element

3a. . . Stand up

3b. . . Clamping head

3c. . . First rib

3d. . . Second rib

4. . . Resin intrusion prevention wall

4a, 4b. . . First and second linear elastic body clamping portions

4c. . . Outer wall

4d. . . Linear elastomer support

4e. . . Resin intrusion blocking wall

4a’, 4b’. . . Split clamping wall

4a", 4b". . . Clamping part

5. . . Metal wire (magnetic wire)

6. . . Uplift

7. . . Linear elastomer (rope)

8. . . Fin

9. . . Engagement element forming area

10. . . Hook protrusion

10a. . . Intrusion suppression wall

100. . . Foamed resin molding die

101. . . Facial

102. . . magnet

150. . . Wire supply roller

151. . . Wire guiding roller

152. . . Linear elastomer supply unit

200. . . Polyurethane resin (foamed resin material)

300. . . Mold roller

301. . . Continuous extrusion nozzle

302. . . Male card component forming cavity

303. . . Pick up roller

304, 305. . . Pressing the pair of upper and lower rollers

Fig. 1 is a partial perspective view showing a portion of a molded male fastening tape of a suitable embodiment of the present invention broken and viewed from above.

Figure 2 is a top view of the molded male adhesive strip.

Fig. 3 is a cross-sectional view taken along line III-III of Fig. 2;

Fig. 4 is an external view showing an example of the shape of a metal wire of the magnetic wire of the present invention.

Fig. 5 is an explanatory view showing an arrangement example of a fastening tape in a mold before foam molding, in which a molded male adhesive tape is integrally molded into a foamed product.

Fig. 6 is a process explanatory view showing a part of a molding process example of the molded male adhesive tape of the present invention.

Fig. 7 is an explanatory view showing the foaming resin intrusion prevention mechanism mode at the time of foam molding.

Fig. 8 is a partial view showing a modification of the above embodiment.

Fig. 9 is a partially enlarged view showing another modification of the above embodiment.

1. . . Molded male adhesive tape (bonding tape)

2. . . Flat substrate

3. . . Clamping element

3a. . . Stand up

3b. . . Clamping head

4. . . Resin intrusion prevention wall

4a, 4b. . . First and second linear elastic body clamping portions

4c. . . Outer wall

4d. . . Linear elastomer support

4a’, 4b’. . . Split clamping wall

5. . . Metal wire (magnetic wire)

6. . . Uplift

7. . . Linear elastomer (rope)

8. . . Fin

9. . . Engagement element forming area

Claims (10)

A molded male adhesive tape having a foamed resin material for molding on the surface of the left and right side edge portions in the longitudinal direction of the flat substrate (2) made of a thermoplastic resin having a front and back surface, respectively 200) The resin intrusion preventing wall portion (4); and the surface of the flat substrate (2) between the left and right resin intrusion preventing wall portions (4) is disposed on the surface of the flat substrate (2) The engaging element forming region (9) of the plurality of male engaging members (3) which are integrally molded at the same time, and the foaming of the foaming resin material (200) for molding described above by the magnetic attraction force The molded male adhesive tape (1) formed by the magnetic material to be adsorbed by the resin molding die (100) is characterized in that the magnetic material is caused by: the resin intrusion prevention of the flat substrate (2) In the above-mentioned engaging element forming region (9) between the wall portions (4), a metal wire (5) extending in a serpentine direction in the longitudinal direction is formed, and the metal wire (5) is attached to the flat substrate ( 2) Forming the upper faces of the two or more raised portions (6) which are simultaneously molded and integrated at the same time as the molding A molded male adhesive tape having a foamed resin material for molding on the surface of the left and right side edge portions in the longitudinal direction of the flat substrate (2) made of a thermoplastic resin having a front and back surface, respectively 200) The resin intrusion preventing wall portion (4); and the surface of the flat substrate (2) between the left and right resin intrusion preventing wall portions (4) is disposed on the surface of the flat substrate (2) Molding of a plurality of male snap components simultaneously molded (3) The engaging element forming region (9); and the magnetic material which is adsorbed by the foamed resin molding die (100) of the foaming resin material (200) for molding described above by the magnetic attraction force The formed male adhesive tape (1) is characterized in that the magnetic material is the above-mentioned engaging member between the resin intrusion preventing wall portions (4) of the flat substrate (2) a metal wire (5) extending in a serpentine direction in the longitudinal direction in the formation region (9), and each of the meandering pitches of the two or more metal wires (5) faces the length of the flat substrate (2) Displacement in the side direction. The molded male adhesive tape according to claim 1 or 2, wherein the meandering metal wire (5) is spaced apart from the surface of the engaging element forming region (9) by a required interval. Two columns or more are arranged side by side. The molded male adhesive tape according to claim 1 or 2, wherein the snake-shaped metal wire (5) is bent in a zigzag shape on the same plane or formed into a coil shape. The molded male adhesive tape according to claim 1 or 2, wherein the metal wire (5) is composed of a single wire or a plurality of wires, and has a thickness of 0.05 mm to 2 mm. The molded male adhesive tape according to claim 1 or 2, wherein the metal wire (5) has a meandering pitch of 0.3 mm to 6 mm. Such as the molded male adhesive tape of claim 1 or 2, The meandering width of the metal wire (5) is 0.3 mm to 6 mm. The molded male adhesive tape according to claim 1 or 2, wherein each of the top and bottom of each of the resin intrusion preventing wall portions (4) is fixedly supported by the flat substrate ( 2) A sealing elastic linear elastic body (7) which is composed of a material different from the male engaging element (3) and whose sealing surface is set to be equal to or higher than the apex height of the male engaging element (3). . The molded male adhesive tape according to the eighth aspect of the invention, wherein the linear elastic body (7) is a fiber rope body. The molded male adhesive tape according to claim 1 or 2, wherein the formed male adhesive tape (1) is divided in the longitudinal direction, and the divided split piece (1a) of the formed male adhesive tape is divided. Each of the flat substrate (2) is joined by a flexible connecting body (1b).