TWI632068B - Foam product - Google Patents

Abstract

The present invention relates to a foamed product comprising substantially a foamed core sheet and a soft foamed bladder. Wherein, the foamed core board is formed by agglomerating a plurality of foam beads, each foamed bead is foamed by a pre-expanded bead, and the foamed core plate defines a groove on a surface thereof The inner wall of the groove is distributed with a plurality of protruding beads. The flexible foaming capsule system is disposed in the groove of the foamed core board, and the outer wall of the flexible foaming capsule is in close contact with the inner wall of the groove. In addition, a plurality of dimples are distributed on the outer wall of the flexible foaming capsule, respectively corresponding to the protruding foam beads on the inner wall of the recess receiving the foam core.

Description

Foaming product

The present invention relates to a foamed product, and more particularly to a foamed product having a closed-cell foam.

Generally, large foam products, especially vertical paddles, usually have a concave grip on the surface of the plate. The user can hold the board under the back of the hand and snap the product into the grip by its four fingers to carry the product around.

U.S. Patent No. 9120218 discloses a vertical paddle board having a plate body and a grip recess recessed in the plate body and aligned with the surface for gripping. Wherein, the grip groove is composed of a box body which is externally embedded in the plate body and is bonded to the plate body through the adhesive.

In addition, U.S. Patent No. 20140315453 discloses another vertical paddle board having a core plate, an upper skin and a grip groove, wherein the top surface of the core plate is formed with a groove, and the upper skin is not only coated Most of the top surface of the core plate is covered along the inner wall of the groove to form the grip groove.

Different from the prior art, the present invention provides a foamed product of a new structure. The foamed product mainly comprises a foamed core board and a soft foaming capsule. Wherein, the foamed core board is formed by agglomerating a plurality of foam beads, each foamed bead is foamed by a pre-expanded bead, and the foamed core plate defines a concave surface on a top surface thereof a groove, the inner wall of the groove is distributed with a plurality of protruding beads. In another aspect, the flexible foaming bladder system is disposed in the recess of the foam core panel, and the outer wall of the flexible foam bladder is in close contact with the inner wall of the recess. In addition, the outer wall of the soft foaming capsule is distributed The plurality of pits respectively correspond to the protruding foam beads on the inner wall of the groove for receiving the foam core plate.

Preferably, the foam core plate comprises a foamed plate and a foamed block which is disposed in the foamed plate and has a relatively strong texture, and the groove of the foamed core plate is located on the foamed block.

Preferably, the material of the foamed sheet is made of expandable polystyrene (EPS), and the material of the foamed block is selected from the group consisting of expandable polystyrene (EPS) and expandable polyethylene (EPE). A polymer, and the material of the soft foaming capsule is an electron beam bridged polyethylene foam.

Preferably, the upper space of the flexible foaming capsule is of a size sufficient for the fingers to protrude, and the lower space is slightly large enough for the fingers to protrude slightly.

Preferably, the flexible foaming capsule comprises a shell body and two extending portions extending from opposite ends of the shell body, each extending portion comprising two adjacent fins, and the shape of the groove of the foam core sheet is Correspondingly matching the shape of the soft foaming capsule. Alternatively, the flexible foaming capsule comprises a shell body and an outer flange extending from a top periphery of the shell body, and the shape of the groove of the foam core sheet corresponds to the shape of the soft foaming capsule.

In one embodiment, the foamed product further comprises a top foamed skin, a bottom foamed skin, a non-foamed plastic film, and a non-foamed plastic sheet. The bottom surface of the top foamed skin is in close contact with the top surface of the foamed core board. The top surface of the bottom foam is adhered to a bottom surface of the foam core. The bottom surface of the non-foamed plastic film is bonded to the top surface of the top foaming body, and the top surface of the non-foamed plastic sheet is bonded to the bottom surface of the bottom foaming skin.

In another embodiment, the foamed product further comprises a top foamed skin. The bottom surface of the top foamed skin is in close contact with the top surface of the foamed core board. In addition, the top surface of the foam core plate is distributed with a plurality of protruding foam beads, and the bottom surface of the top foam skin is distributed with a plurality of pits corresponding to the top surface of the foam core plate. The protruding foam beads on the top.

Preferably, the foamed product further comprises a bottom foamed skin. The top surface of the bottom foam is adhered to a bottom surface of the foam core. In addition, a plurality of protruding beads are disposed on the bottom surface of the foam core plate, and the top surface of the bottom foam skin is distributed with a plurality of pits respectively corresponding to the bottom surface of the foam core plate The protruding foam beads.

In short, the aforementioned foamed product comprises a foamed core board and a foamed skin. The foamed core board is formed by agglomerating a plurality of foam beads, each of which is foamed by a pre-expanded bead, and the foamed core sheet is foamed on an outer surface thereof. The beads are each protruding. The inner wall of the foamed skin is in close contact with the outer surface of the foamed core board, and a plurality of pits are distributed, respectively corresponding to receiving the The protruding foam beads of the outer surface of the foam core sheet.

According to the above arrangement, the foam core sheet of the present invention can form a concave-convex interface by using the shape characteristics of the foam beads, whether it is a soft foamed bladder or a foamed skin, and achieves a firm combination.

100, 200, 300, 400, 500, 600‧‧‧ foaming products

6‧‧‧ Grip

61‧‧‧Soft foaming capsule

610‧‧‧ pit

611‧‧‧Shell body

612‧‧‧Extension

613‧‧‧ outer flange

62‧‧‧ openings

1‧‧‧Foam core board

1a‧‧‧Foam board

1b‧‧‧Flame block

10‧‧‧ Groove

101‧‧‧Upper space

102‧‧‧Lower space

11‧‧‧foam beads

2‧‧‧ top foam

20‧‧‧ pit

3‧‧‧ bottom foam

30‧‧‧ pit

4‧‧‧Non-foam plastic film

5‧‧‧Non-foamed plastic sheet

The first figure is a schematic perspective view of a first preferred embodiment of the foamed product of the present invention.

The second figure is a schematic diagram of the situation in which the user carries the foamed product of the present invention.

The third figure is a partial cross-sectional view of the foamed product of the first figure, showing the situation in which the user's fingers extend into the grip of the foamed product.

The third A diagram is a partially enlarged schematic view of the third diagram.

The fourth figure is a schematic cross-sectional view of the foamed product of the first figure taken along line IV-IV.

The fifth figure is a partial structural schematic view of the foam core plate and the soft grip groove of the foamed product of the first figure.

The sixth figure is a partially enlarged schematic view of the fifth figure.

The sixth A diagram is a partially enlarged schematic view of the sixth diagram.

The seventh drawing is a schematic perspective view of a second preferred embodiment of the foamed product of the present invention.

The eighth figure is a partial structural diagram of the foam core plate and the soft grip groove of the foamed product of the seventh figure.

The ninth drawing is a partially enlarged schematic view of the eighth figure.

The ninth A diagram is a partially enlarged schematic view of the ninth diagram.

Figure 10 is a schematic cross-sectional view of the foamed product of Figure 7 taken along line X-X.

Figure 11 is a schematic cross-sectional view of the foamed product of Figure 7 taken along line XI-XI.

The eleventh A is a partially enlarged schematic view of the eleventh drawing.

Figure 12 is a schematic cross-sectional view showing a third preferred embodiment of the foamed product of the present invention.

The twelfth A is a partially enlarged schematic view of the twelfth diagram.

Figure 13 is another schematic cross-sectional view of the foamed product of Figure 12.

The thirteenth A is a partially enlarged schematic view of the thirteenth diagram.

Thirteenth B is another partially enlarged schematic view of the thirteenth diagram.

Figure 14 is a schematic cross-sectional view showing a fourth preferred embodiment of the foamed product of the present invention.

The fourteenth A diagram is a partially enlarged schematic view of the fourteenth diagram.

The fourteenth Bth diagram is another partially enlarged schematic view of the fourteenth diagram.

The fifteenth drawing is a partial structural view of the foam core plate and the soft grip groove of the fifth preferred embodiment of the foamed product of the present invention.

Figure 16 is a partial cross-sectional view showing a sixth preferred embodiment of the foamed product of the present invention.

The seventeenth figure is a partial structural schematic view of the foam core plate and the soft grip groove of the foamed product of the sixteenth figure.

The first to sixth figures show a first preferred embodiment of the foamed product 100 of the present invention. Taking a surfboard as an example, the foamed product 100 has a grip groove 6. Thereby, the user can easily hold the foamed product 100 under the back of the hand and hold the foamed product 100 by the four fingers of the finger into the holding groove 6 to carry the foamed product 100 with him. Go, as shown in the second and third figures.

Referring to the fourth figure, the foamed product 100 further comprises a foam core board 1, a top foam skin 2 and a bottom foam skin 3. Wherein, the top foaming skin 2 has a half shell shape, and the bottom surface thereof is adhered to the top surface and the side surface of the foam core sheet 1 by adhesive; and the top surface of the bottom foaming skin 3 is also made of adhesive It is attached to the bottom surface of the foam core sheet 1. The foamed core sheet 1 is made of expandable polystyrene (EPS). The materials of the top foamed skin 2 and the bottom foamed leather 3 are selected from relatively soft materials such as foamed polyethylene (EPE) and have a thickness of about 4 mm to 5 mm. In addition, the foamed product 100 further includes a protective layer such as a non-foamed plastic film 4 and a non-foamed plastic sheet 5. The bottom surface of the non-foamed plastic film 4 can be directly thermocompression bonded to the top surface of the top foaming skin 2, and the top surface of the non-foamed plastic sheet 5 can also be directly thermocompression bonded to the bottom foaming skin 3. Bottom surface. Further, the non-foamed plastic film 4 has a color or pattern visible from the surface. The non-foamed plastic sheet 5 is made of a wear-resistant material, such as polyethylene plastic. As shown in the third figure, the holding groove 6 has a soft foaming capsule 61 and an opening 62 passing through the top foaming skin 2 and the non-foaming plastic film 4. The material of the flexible foamed capsule 61 is preferably an electronic wire bridge polyethylene foam having a wall thickness of about 2 mm to 3 mm.

The fifth figure is a partial structural schematic view of the foamed core sheet 1 of the foamed product 100 and the soft foamed bladder 61. Referring to Figures 6 and 6A, the foamed core sheet 1 is formed by agglomerating a plurality of foam beads 11 each of which is further developed by a pre-expanded beads. Bubbled. The foam core sheet 1 defines a groove 10 on its surface. The upper space 101 in the recess 10 is of a size sufficient for one or more fingers to be placed, while the lower space 102 is slightly large enough for the fingers to be slightly bent, as shown in the third figure.

It should be noted that, as shown in the enlarged views of the third and sixth A drawings, the inner wall of the groove 10 of the foam core plate 1 is provided with a plurality of protruding beads 11 which are convex, which are actually all The inner wall is covered with the foam beads 11. The soft foaming capsule 61 is disposed on the groove 10 of the foam core plate 1, and the outer wall of the soft foaming capsule 61 is in close contact with the inner wall of the groove 10. In particular, as shown in the third and sixth A diagrams, the inner wall of the soft foaming capsule 61 is relatively flat, and a plurality of dimples 610 are distributed on the outer wall of the soft foaming capsule 61, respectively corresponding to receiving the The convex foam beads 11 of the recess 10 of the foam core board 1, in short, the soft foam bladder 61 has only the outer walls having the pits 610, and the inner walls are absent. In this way, the foamed core sheet 1 and the soft foamed bladder 61 are correspondingly joined by the concave-convex surface, so that the interface between the two has a large joint contact area, so that the soft foamed bladder 61 can be firmly disposed on the hair. Bubble core board 1. The bonding between the foam core sheet 1 and the soft foaming capsule 61 can be achieved by selecting a suitable adhesive or directly bonding to each other by thermal fusion of the surfaces of the two materials.

The seventh to eleventh drawings show a second preferred embodiment of the present invention, and the foamed product 200 in this embodiment has the same appearance as the foamed product 100 of the previous embodiment, and each has a grip groove 6 for The user holds the handle, but the internal structure is slightly different. One of the more obvious differences is that the foamed core sheet 1 of the previous foamed product 100 is foamed from a single foamed material, and the second The foamed core sheet of the foamed product 200 of the preferred embodiment is formed by combining foams of different materials and densities.

Referring to the eighth drawing, it is a partial structural schematic view of the foamed core sheet 1 and the soft foamed bladder 61 of the foamed product 200. As shown in the figure, the foam core plate 1 comprises a foamed plate 1a and a foamed block 1b which is provided in the foamed plate 1a and has a relatively strong texture, and the foamed core plate 1 has a groove 10 It is defined in the foam block 1b. The foamed sheet 1a of the foamed core sheet 1 is preferably made of expandable polystyrene (EPS), and the foamed block 1b is preferably made of expandable polystyrene (EPS). Copolymer with expandable polyethylene (EPE). As shown in the enlarged view of the ninth figure, the upper space 101 in the recess 10 is of a size sufficient for the fingers to protrude, and the lower space 102 is slightly large enough for the fingers to be slightly bent.

Referring to the tenth figure, the foamed product 200 is further packaged in addition to the foamed core board 1. A top foaming skin 2 and a bottom foaming leather 3 are included. The top foamed skin 2 has a half shell shape, and the bottom surface thereof is adhered to the top surface and the side surface of the foam core sheet 1 by adhesive; and the top surface of the bottom foamed leather 3 is attached by adhesive. On the bottom surface of the foam core sheet 1. The materials of the top foamed skin 2 and the bottom foamed leather 3 are selected from relatively soft materials such as foamed polyethylene (EPE) and have a thickness of about 4 mm to 5 mm. In addition, the foamed product 200 further includes a protective layer such as a non-foamed plastic film 4 and a non-foamed plastic sheet 5. The bottom surface of the non-foamed plastic film 4 can be directly thermocompression bonded to the top surface of the top foaming skin 2, and the top surface of the non-foamed plastic sheet 5 can also be directly thermocompression bonded to the bottom foaming skin 3. Bottom surface. The surface of the non-foamed plastic film 4 may be printed with a color or pattern to increase the aesthetics of the foamed product 200. The non-foamed plastic sheet 5 is made of a wear-resistant material, such as polyethylene plastic. As shown in the eleventh figure, the grip groove 6 has a soft foaming capsule 61 and an opening 62 passing through the top foaming skin 2 and the non-foaming plastic film 4. The material of the flexible foamed capsule 61 is preferably an electronic wire bridge polyethylene foam having a wall thickness of about 2 mm to 3 mm.

It should be noted that, as shown in the ninth and ninth drawings, the foamed block 1b of the foamed core board 1 is formed by agglomerating a plurality of foam beads 11 each of which is pre-foamed. The beads are pre-expanded beads. Similarly, the foamed sheet 1a of the foamed core sheet 1 is also formed by agglomeration of a plurality of foam beads (not shown). As shown in the eleventh and eleventh drawings, the inner wall of the recess 10 of the foam block 1b is provided with a plurality of protruding beads 11 which are exposed. The soft foaming bladder 61 is disposed in the recess 10 of the foam block 1b. The inner wall of the flexible foamed bladder 61 is relatively flat, and the outer wall of the flexible foamed bladder 61 abuts against the inner wall of the recess 10. In particular, a plurality of dimples 610 are disposed on the outer wall of the flexible foamed capsule 61, respectively corresponding to the convex foam beads 11 that receive the grooves 10 of the foam block 1b. In this way, the foamed block 1b and the soft foamed bladder 61 are directly bonded to each other through the adhesive surface without passing through other adhesives, and the interface contact area is large, so that the soft foamed capsule 61 can be It is firmly provided on the foam core sheet 1.

The twelfth to thirteenth drawings show a third preferred embodiment of the present invention, and the structure of the foamed product 300 in this embodiment is substantially the same as that of the foamed product 200 in the second preferred embodiment, the foamed core The plate 1 is also composed of a foamed plate 1a and a foamed block 1b, the only difference being that the manner in which the foamed core sheet 1 and the top foamed skin 2 are combined is slightly different.

As shown in the twelfth and twelfth drawings, the top surface of the foamed sheet 1a of the foamed core sheet 1 is also distributed with a plurality of protruding beads 11 which are convex, and the top of the top foamed skin 2 is large. a plurality of dimples 20 are correspondingly distributed on a portion of the bottom surface, respectively receiving the convex foam beads on the top surface of the foam board 1a. 11. Further, referring to the thirteenth embodiment, a small portion of the bottom surface of the top foamed leather 2 is attached to the top surface of the foamed block 1b of the foamed core sheet 1 by an adhesive. Thus, the top foamed skin 2 is bonded to the foamed sheet 1a by the uneven surface on the one hand, as shown in FIG. 13A, and the foam is bonded to the foamed block 1b on the other hand, so that the top hair is made. The foam 2 can be firmly provided on the foam core sheet 1. Further, as shown in Fig. 13B, the flexible foamed bladder 61 is also joined to the foamed sheet 1a by a concave-convex surface.

The fourteenth, fourteenth and fourteenth Bth drawings show a fourth preferred embodiment of the present invention, and the structure of the foamed product 400 in this embodiment is substantially the same as that of the foamed product 300 in the third preferred embodiment. The foamed core sheet 1 is also composed of a foamed sheet 1a and a foamed block 1b, and the top foamed skin 2 is bonded to the foamed sheet 1a by a concave-convex surface, such as the fourteenth B As shown, the only difference is that the manner in which the foam core sheet 1 and the bottom foam sheet 3 are combined is slightly different.

As shown in FIG. 14A, the bottom surface of the foamed sheet 1a of the foam core sheet 1 is provided with a plurality of protruding beads 11 which are convex, and the top surface of the bottom foam sheet 3 is correspondingly distributed. The dimples 30 receive the convex foam beads 11 on the bottom surface of the foamed plate 1a, respectively. In this manner, the bottom foamed skin 3 is similarly bonded to the foamed sheet 1a by the uneven surface, whereby it is firmly provided on the foamed core sheet 1.

The fifteenth embodiment shows a fifth preferred embodiment of the present invention, and the structure of the foamed product 500 in this embodiment is substantially the same as that of the foamed product 300 in the third preferred embodiment, and the foamed core sheet 1 is also the same. It is a combination of a foamed sheet 1a and a foamed block 1b, and the top foamed skin 2 is bonded to the foamed sheet 1a by a concave-convex surface, the only difference being the type of the soft foamed bladder 61. The state is slightly different. As shown, the flexible foaming capsule 61 includes a shell body 611 and two extending portions 612 extending from opposite ends of the shell body 611. Each extending portion 612 includes two adjacent flaps (not labeled). The shape of the groove 10 in the foam block 1b of the foam core plate 1 corresponds to the overall shape of the soft foaming capsule 1, that is, the shell body 611 corresponding to the soft foaming capsule 1 and the two The overall shape of the extension.

The sixteenth to seventeenth drawings show a sixth preferred embodiment of the present invention, and the structure of the foamed product 600 in this embodiment is substantially the same as that of the foamed product 300 in the third preferred embodiment, the foamed core The plate 1 is also composed of a foamed plate 1a and a foamed block 1b, and the top foamed skin 2 is bonded to the foamed plate 1a by a concave-convex surface, the only difference being that the soft foamed bladder The type of 61 is slightly different. As shown, the flexible foamed capsule 61 includes a shell body 611 and an outer flange 613 extending from the top periphery of the shell body 611, and the foamed core 1 of the foamed core sheet 1 is inside the foamed block 1b. The shape of the groove 10 corresponds to the overall shape of the flexible foamed bladder 1, that is, the overall shape of the shell body 611 and the outer flange 613 corresponding to the soft foamed bladder 1.

According to the above arrangement, both the foam core sheet and the soft foam skin of the present invention can form a concave-convex interface by utilizing the shape characteristics of the foam beads, thereby achieving a firm bond.

Further, the foamed product of the present invention is not limited to the above-mentioned surfboard, and may be a snowboard, a grassboard, a floating board, a canoe or the like. Further, the form of the foamed core sheet of the foamed product of the present invention is not limited to a flat plate shape, and may be other non-plate form having different irregularities.

In any event, anyone can obtain sufficient teaching from the description of the above examples, and it is understood that the present invention is indeed different from the prior art, and is industrially usable and progressive. It is the invention that has indeed met the patent requirements and has filed an application in accordance with the law.

Claims (10)

A foaming product comprising: a foamed core board formed by agglomerating a plurality of foam beads, each foamed bead being foamed by a pre-expanded bead, and the foamed core board is The top surface defines a groove; the foamed product further comprises a soft shell, the outer wall of which is in close contact with the inner wall of the groove of the foam core board; the inside of the groove of the foam core board a plurality of convex foam beads are disposed on the wall, and a plurality of pits are distributed on the outer wall of the flexible casing, respectively corresponding to the convex foams on the inner wall of the groove receiving the foam core plate Beads. The foaming product according to claim 1, further comprising a top foaming body, the bottom surface of which is closely attached to the top surface of the foaming core board, wherein the foaming core board has a convex surface distributed thereon The plurality of foam beads are exposed, and the bottom surface of the top foam skin is distributed with a plurality of pits corresponding to the convex foam beads on the top surface of the foam core plate. The foaming product according to claim 2, further comprising a bottom foaming body, the top surface of which is closely adhered to a bottom surface of the foaming core board, wherein the foaming core board has a convex surface distributed thereon The plurality of foam beads are exposed, and the top surface of the bottom foam layer is distributed with a plurality of pits corresponding to the convex foam beads on the bottom surface of the foam core plate. The foaming product according to claim 1, further comprising: a top foamed skin, the bottom surface of which is closely attached to the top surface of the foamed core board; and a bottom foamed skin, the top surface of which is closely attached to the foamed core sheet a bottom surface of the foam core board; a non-foamed plastic film, the bottom surface of which is bonded to the top surface of the top foamed skin; and a non-foamed plastic sheet whose top surface is bonded to the bottom surface of the bottom foamed skin. The foamed product according to any one of claims 1 to 4, wherein the foamed core sheet comprises a foamed sheet and a foamed block provided in the foamed sheet and having a relatively strong texture. The groove of the foam core plate is located in the foam block. The foamed product according to claim 5, wherein the material of the foamed sheet is made of expandable polystyrene (EPS), and the material of the foamed block is made of expandable polystyrene (EPS). A copolymer with foamed polyethylene (EPE), and the material of the flexible shell is an electron-wire bridging polyethylene foam. The foamed product of claim 1, wherein the upper space in the flexible casing is of a size sufficient for the fingers to protrude, and the lower space is slightly large enough for the fingers to be slightly bent. The foamed product of claim 1, wherein the flexible casing comprises a shell body and two extensions extending from opposite ends of the shell body, each extension portion comprising two adjacent flaps, and the hair piece The shape of the groove of the bubble core plate corresponds to the shape of the soft case. The foamed product of claim 1, wherein the flexible casing comprises a casing body and an outer flange extending from a top periphery of the casing body, and the shape of the groove of the foam core plate is Correspondingly matching the shape of the soft casing. A foaming product comprising: a foamed core board formed by agglomerating a plurality of foam beads, each foamed bead being foamed by a pre-expanded bead; The foamed product further comprises a foamed skin, the inner wall of which is closely adhered to an outer surface of the foamed core board; and the foamed bead of the foamed core board on the outer surface thereof is respectively protruded, The inner wall of the foamed leather is distributed with a plurality of pits corresponding to the protruding foam beads which receive the outer surface of the foamed core sheet.