Cushion component for cap and cap

Abstract

To uniformly curve portions of a base side in a piece part as much as possible, to improve curvature and to fit better.SOLUTION: A cushion component for cap includes a base 20 and multiple piece parts 22 which radially extend from the base are interposed between one bowl-shaped cap body 1 and the other bowl-shaped cap body 1 constituting a cap C. A main ventilation hole 30 is formed on the base 20 side of each piece part 22, and a plurality of sub-ventilation holes 31 is formed on an outer end edge 24 side of the main ventilation hole 30. The main ventilation hole 30 is formed in a shape having bilaterally symmetrical inner edges 33 which widen toward the outer end edge 24 side and are parallel to an outer edge 23 of the piece part 22. Width D between the outer edge 33 of the piece part 22 and the inner edge 33 of the main ventilation hole 30 is set to a prescribed size.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cushion member for a hat that is provided inside the hat and can protect the head from impact and improve breathability, and to a hat provided with the cushion member. [Background technology]

[0002] A known example of a hat provided with this type of hat cushion member is disclosed in Japanese Patent Publication No. 7281154 (Patent Document 1), previously proposed by the present applicant. As shown in Fig. 8, this hat Ca is comprised of a bowl-shaped first hat body 100 formed by sewing together a plurality of (six in the figure) generally triangular astragalus pieces 101 in order at their sides, a second hat body 103 formed by sewing together a plurality of (six in the figure) generally triangular astragalus pieces 102 in order at their sides and superimposed on the first hat body 100, and a breathable plate-like cushion member 200 interposed between the first hat body 100 and the second hat body 103. The seam between the astragalus pieces 101 of the first hat body 100 and the seam between the astragalus pieces 102 of the second hat body 103 are aligned, and portions of the first hat body 100 and the second hat body 103 are sewn together along this seam.

[0003] The cushion member 200 is curved and interposed between the first cap body 100 and the second cap body 103. It is made of a flexible foamed plastic, such as foamed polyurethane, and is formed in a flat plate shape. The cushion member 200 has a base 201 with a center point P facing the tops of the first cap body 100 and the second cap body 103, and six tongue-like pieces 202 that are integrally and continuously formed on the base 201 along radial lines Q extending radially from the center point P at equal intervals of θ (=60°). Each piece 202 has a plurality of ventilation holes (203, 204 described below). Each piece 202 is formed so as to be interposed between the corresponding asparagus 101, 102 of the first cap body 100 and the second cap body 103. Note that FIG. 8 is a schematic plan view of the cap Ca. The cushion member 200 is originally curved when viewed from above, but is shown in a flat state when viewed from above.

[0004] The pieces 202 are each formed to have a shape that widens toward their outer radial ends and has an outer edge 205 that is symmetrical about the radial line Q. The outer edges 205 of each piece 202 have the same circumferential width about the center point P of the outer edge 205, and are formed to have the same shape and size. Of the ventilation holes formed in each piece 202, one ventilation hole is formed on the base 201 side of each piece 202 and constitutes a main ventilation hole 203, and the other ventilation holes are formed on the outer radial end side of the main ventilation hole 203 of each piece 202 and constitute sub-ventilations 204. The main ventilation hole 203 is formed in a circular shape, is formed in the center of the base 201 side of each piece 202, and is larger than the other sub-ventilations 204.

[0005] This hat Ca has cushioning material 200, which provides protection from impacts, and ventilation holes 203, 204 in cushioning material 200, ensuring breathability and a comfortable fit. This hat is particularly useful for children, such as kindergarteners and elementary school students. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 7281154 Summary of the Invention [Problem to be solved by the invention]

[0007] In the conventional cap Ca, foamed plastic is used for the cushion member 200 because of its lightness, ease of processing, and cost. However, in recent years, there has been a demand for foamed plastic with a lower expansion ratio while maintaining flexibility in order to improve impact resistance. This has resulted in a problem of poor flexibility of the cushion member 200 and a poor fit to the head. This is particularly because, in the conventional cushion member 200, as shown in FIG. 5( b), a circular main vent 203 is provided on the proximal end side of the piece 202 relative to the base 201. However, in this region, the width between the outer edge 205 of the piece 202 and the inner edge 203 a of the main vent 203 is non-uniform (d1, d2, d3). This means that the curvature is large where the width is narrow and small where the width is wide, resulting in a difference in the degree of curvature and a small overall degree of curvature.

[0008] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a cushion member for a hat, and a hat using the same, which allows the base portion of one piece to bend as evenly as possible, thereby improving bendability and improving fit. [Means for solving the problem]

[0009] In order to achieve the above object, the hat of the present invention is a flat, flexible hat cushion member that is curved and interposed between a first bowl-shaped hat body and a second bowl-shaped hat body that is provided so as to overlap the first bowl-shaped hat body, and that includes a base portion having a center point P and facing the tops of the first and second hat bodies, and a plurality of tongue-shaped pieces that are integrally formed on the base along radial lines that extend radially at equal angular intervals of θ from the center point P, and each piece portion has a plurality of ventilation holes formed therein. The pieces are each formed to have a shape that spreads outward from each other toward its outer end in the radial direction and has an outer edge that is symmetrical about the radial line, and the outer edges of the pieces are each formed to have the same width in the circumferential direction about the center point P, Among the ventilation holes formed in each of the pieces, one ventilation hole is formed on the base side of each of the pieces and configured as a main ventilation hole, and the other ventilation holes are formed on the outer end side of the main ventilation hole of each of the pieces in the radial direction and configured as sub ventilation holes, The main air vents of each of the above-mentioned pieces are formed to have the same shape and size, and the main air vents are formed to widen from each other toward the outer radial ends of the pieces around the radial line of the piece as the center, and to have symmetrical inner edges parallel to the outer edges of the pieces, and the width between the outer edges of the pieces and the inner edges of the main air vents is set to a predetermined dimension.

[0010] Here, each piece is formed to have a shape that flares out toward its outer radial end and has outer edges that are symmetrical about the radial line, and the circumferential width of each piece about the center point P of the outer edge is the same, so that each piece is roughly an isosceles triangle and is roughly the same size, but since the back of the hat may be provided with, for example, rubber or a belt that changes the inside diameter of the hat, the piece located at the back of the hat may be made shorter in length along the radial line or may have a notch at its outer end, and the shape of the outer end may be slightly different from the others. Furthermore, the shape and number of the sub-vents may be the same or different in each piece and may be changed as appropriate.

[0011] As a result, when manufacturing a hat using this hat cushion member, for example, the cushion member is first attached to one hat body, then the other hat body is overlapped on the one hat body, and then the other hat body is sewn to the one hat body. At this time, since the one hat body and the other hat body are formed in a bowl shape, the cushion member is curved and interposed between the one hat body and the other hat body. In this case, the cushion member is interposed with a relatively uniform curve following the curvature of the one hat body and the other hat body. In particular, each arm has a main air vent, and the inner edge of this main air vent is parallel to the outer edge of the arm, and the width between the outer edge of this arm and the inner edge of the main air vent is set to a predetermined and uniform dimension. Therefore, there is less variation in the degree of curvature in this area compared to conventional cases, and therefore the curvature is smooth and uniform. As a result, when this hat is used, it is rounded and fits well to the head, significantly improving the fit. Furthermore, the cushioning member can protect the head from impacts, and since the cushioning member is breathable, the inside of the cushioning member does not easily become stuffy, and comfort can be maintained.

[0012] And, if necessary, it is configured using foamed plastics with an expansion ratio M of 12≦M≦18 and a thickness t of 7 mm≦t≦9 mm, Six pieces are provided on the base at equal angular intervals of θ (=60°) around the center point P, When the maximum length from the center point P to the outer end of the piece is R, the main air vent is provided between the outermost edge of the base and a position that is R / 2 in length from the center point P, When the width between the outer edge of the piece and the inner edge of the main vent is D, The configuration is set to D=(1 to 1.5)t=7 mm to 13.5 mm.

[0013] The cushion member may be made of any flexible material, but foamed plastic is effective. Examples of foamed plastic include polyurethane, polystyrene, polyethylene, polypropylene, and polyvinyl chloride. Polyolefin, urethane, and ethylene propylene diene rubber are also usable. In this case, the expansion ratio M is 12≦M≦18 and the thickness t is 7mm≦t≦9mm, so the sheet is relatively hard. However, the width D between the outer edge of the piece and the inner edge of the main vent is set to D=(1-1.5)t=7mm-13.5mm, so the sheet can be bent reliably and evenly. In particular, the width D between the outer edge of the piece and the inner edge of the main vent is set to be equal to or greater than the thickness T, which prevents twisting and allows the sheet to be bent reliably and evenly. Preferably, T=8mm±0.5mm, and D=(1-1.5)t=7.5mm-12.75mm.

[0014] If necessary, a connecting portion is provided on the one side so as to be connected to the outermost edge of the base portion, The main ventilation hole is provided between the outermost edge of the connecting portion and a position that is a length of R / 2 from the center point P, where R is the maximum length from the center point P to the outer end of the piece portion, The length from the center point P to the outermost edge of the base is R1. The length from the center point P to the outermost edge of the connecting part is R2 The radial length of the connecting part is R3 (= R2 - R1), The circumferential width of the outermost edge of the connecting portion is S, When the circumferential distance at the outermost edge of the connecting portion of the adjacent pieces is K, The configuration is set to 120mm≦R≦170mm, 10mm≦R1≦36mm, 15mm≦R2≦48mm, 5mm≦R3≦12.5mm, 6mm≦S≦25mm, 10mm≦K≦25mm.

[0015] As a result, a connecting portion is provided, its radial length R3 is set to 5 mm ≦ R3 ≦ 12.5 mm, and its circumferential width S is set to 6 mm ≦ S ≦ 25 mm. Since the circumferential width of the connecting portion is relatively small, in addition to the uniform curvature at the portion where the main air vent is located, the curvature at this connecting portion can also be made uniform, further improving the bendability and the fit when wearing the hat. Preferably, the dimensions are 155 mm ≦ R ≦ 165 mm, 20 mm ≦ R1 ≦ 30 mm, 31 mm ≦ R2 ≦ 41 mm, 10 mm ≦ R3 ≦ 12.5 mm, 13 mm ≦ S ≦ 17 mm, and 20 mm ≦ K ≦ 25 mm.

[0016] Furthermore, if necessary, when the length from the center point P to the radially inner end of the main vent hole is defined as R4, it is set to 60 mm≦R4≦85 mm, and preferably 70 mm≦R4≦80 mm.

[0017] As a result, the length R4 to the radial inner end of the main vent is set to 60 mm≦R4≦85 mm, so the main vent can be positioned in an appropriate position, and by setting the width D between the outer edge of the piece and the inner edge of the main vent to a specified width, this part can be curved reliably and evenly.

[0018] If necessary, the base may be formed with a top vent centered on a line passing through the center point P and extending in the front-to-back direction as viewed from above, and the top vent may be formed with symmetrical inner lines that widen toward the rear of the front-to-back line. As a result, the strength of the base is somewhat weaker at the rear of the hat than at the front, so the rear half of the hat bends more to the base than the front half. Therefore, since the rear of the hat generally has a more vertically raised shape than the front, the hat can be curved to fit the back of the head, further improving the fit.

[0019] Furthermore, the hat of the present invention for solving the above-mentioned problems comprises a bowl-shaped first hat body formed by sewing together a plurality of generally triangular astragalus pieces of roughly the same size at their sides in order, a second hat body formed by sewing together a plurality of generally triangular astragalus pieces of roughly the same size corresponding to the first hat body in order at their sides in order and provided so as to be superimposed on the first hat body, and a breathable plate-like cushion member interposed between the first and second hat bodies, the cushion member having a base portion facing the tops of the first and second hat bodies and tongue pieces integrally formed on the base and extending radially at equal intervals from the center point of the base, The cap is configured by overlapping the one cap body and the other cap body with a plurality of pieces in the same number as the number of astragalus pieces of the one cap body and the other cap body, and the stitching line of the astragalus piece of the one cap body and the stitching line of the astragalus piece of the other cap body are aligned, and each piece of the cushion member corresponds to the astragalus piece of the one cap body and the other cap body, respectively, and the cushion member is interposed between the one cap body and the other cap body, and the one cap body and the other cap body are sewn together at the stitching line of the astragalus piece of the overlapping one cap body and the stitching line of the astragalus piece of the other cap body, and the cap is configured by using the cushion member as described above. [Effects of the Invention]

[0020] As described above, according to the present invention, the cushion member is interposed with a relatively uniform curve following the curvature of the one cap body and the other cap body. In particular, the main vent is located in each cap section, and the inner edge of this main vent is parallel to the outer edge of the cap section. The width between the outer edge of the cap section and the inner edge of the main vent is set to a predetermined uniform dimension. This means that there is less variation in the degree of curvature in this area compared to conventional cap sections, resulting in a smooth, uniform curve. As a result, when this cap is worn, it is well-rounded and conforms to the head, providing an extremely good and improved fit. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is an exploded perspective view showing a hat according to an embodiment of the present invention. [Figure 2] 1A and 1B show a hat according to an embodiment of the present invention, in which FIG. 1A is a perspective view seen from the front, and FIG. 1B is a perspective view seen from the rear. [Figure 3] 1 is a plan view of a flat-plate-shaped cushion member for a hat according to an embodiment of the present invention, viewed from above. [Figure 4] 1 is an end view showing a curved state of a cushion member for a hat according to an embodiment of the present invention; [Figure 5] 1A and 1B are diagrams showing the difference in the curved state between a hat cushion member according to an embodiment of the present invention and a conventional hat cushion member, where (a) is a diagram showing a schematic view of the curved state of a hat cushion member according to an embodiment of the present invention, and (b) is a diagram showing a schematic view of the curved state of a conventional hat cushion member. [Figure 6] FIG. 1(a) is a diagram showing the measurement site of the example, (b) is a diagram showing the measurement site of the comparative example 1, and (c) is a diagram showing the measurement site of the comparative example 2, in relation to a measurement test of the curved state conducted on a cushion member for a hat according to an example of the present invention and a cushion member for a hat according to a comparative example. [Figure 7] This is a photograph showing the measurement results of the embodiment of the present invention, (b) the measurement results of the comparative example 1, and (c) the measurement results of the comparative example 2, in relation to a measurement test of the curved state conducted on the cushion member for hats according to the embodiment of the present invention and the cushion member for hats according to the comparative example. [Figure 8] FIG. 1 is a plan view schematically showing an example of a conventional hat. DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings, in which: a cushion member for a hat and a hat according to an embodiment of the present invention are described; a cushion member for a hat according to an embodiment of the present invention is used in a hat according to an embodiment of the present invention, and therefore will be described in the description of the hat according to the embodiment of the present invention. As shown in Figures 1 to 4, the basic structure of the hat C according to the embodiment of the present invention comprises a bowl-shaped first hat body 1, a bowl-shaped second hat body 2 superimposed on the first hat body 1, a brim 10, and a flexible flat cushion member T interposed between the first hat body 1 and the second hat body 2 and attached to the first hat body 1 and the second hat body 2.

[0023] Specifically, the first cap body 1 is bowl-shaped and formed by sequentially sewing together a plurality of (six in this embodiment) roughly triangular astragalus pieces 3 of roughly the same size at their sides. The second cap body 2 is formed by sequentially sewing together a plurality of (six in this embodiment) roughly triangular astragalus pieces 4 of roughly the same size at their sides, corresponding to the first cap body 1, and is superimposed on the first cap body 1. The seam line of the astragalus pieces 3 of the first cap body 1 and the seam line of the astragalus pieces 4 of the second cap body 1 are aligned, and portions of the first cap body 1 and the second cap body 2 are sewn together at this seam line. The openings of the first cap body 1 and the second cap body 2 are sewn together and finished. The astragalus pieces 3 and 4 are made of well-known breathable materials such as cloth or mesh material. Breathable materials may be layered.

[0024] The visor 10 is provided by sewing the two front astragales 3, 4 at the opening of the first cap body 1 and the second cap body 2. As shown in FIG. 1, the visor 10 has a crescent-shaped first sheet 11 and a second sheet 12, with a plate-shaped core material (not shown) interposed between the first sheet 11 and the second sheet 12 and fixed by sewing to the first sheet 11 and the second sheet 12. As shown in FIG. 2(b), an elastic part 14 incorporating a circumferentially elastic rubber 13 is formed in the rear part of the opening of the first cap body 1 and the second cap body 2, opposite the visor 10. As shown in FIG. 2, in the first cap body 1, the seam between the two front astragales 3 and the seam between the two rear astragales 3 are located on the center line X in the front-to-rear direction. The same is true for the second cap body 2.

[0025] As shown in Figures 1 to 4, the cushion member T is formed by die-cutting a flexible flat material, and is configured to include a base 20 having a center point P and facing the top of the one cap body 1 and the other cap body 2, and a plurality of tongue-shaped pieces 22 integrally formed on the base 20 along radial lines Q extending radially at equal angular intervals θ from the center point P.

[0026] The material of the cushion member T is selected from rubber, polyester resin, nylon resin, urethane resin, olefin resin, etc. Foamed plastic is particularly used. Examples of foamed plastic include foamed polyurethane, polystyrene, polyethylene, polypropylene, polyvinyl chloride, etc. Foamed polyolefin, urethane, ethylene propylene diene rubber, etc. can also be used. The material of the cushion member T has an expansion ratio M of 12≦M≦18 and a thickness t of 7mm≦t≦9mm. Preferably, t=8mm±0.5mm. In this embodiment, foamed polyethylene is used.

[0027] More specifically, each of the pieces 22 has a plurality of ventilation holes (30, 31), which will be described later. The number of pieces 22 of the cushion member T corresponds to the number of the asparagus 3, 4 of the first cap body 1 and the second cap body 2. In this embodiment, six pieces are provided at equal angular intervals (60°), and each piece 22 is formed so as to be interposed between the corresponding asparagus 3, 4 of the first cap body 1 and the second cap body 2. That is, six pieces 22 are provided on the base 20 at equal angular intervals θ (= 60°) around the center point P. As shown in FIG. 3, in this embodiment, the cushion member T is formed symmetrically with respect to the center line X in the front-to-rear direction of the first cap body 1 and the second cap body 2 when viewed from above in a flat plate-like state, and has a fixed front-to-rear direction. The cushion member T has two front pieces 22 (A), two rear pieces 22 (B), and two left and right pieces 22 (C).

[0028] Each piece 22 is formed to have a shape that diverges toward its radial outer end 24 and has an outer edge 23 that is symmetrical about the radial line Q. Each piece 22 has the same circumferential width about the center point P of the outer edge 23. As a result, each piece 22 has a shape similar to an isosceles triangle, and their sizes are also approximately the same. However, in the area corresponding to the back of the head of the hat C, i.e., in the outer ends 24 of the two rear pieces 22(B), a notch 24a is formed that faces the stretchable portion 14 (FIG. 2(b)) provided on the rear side of the one cap body 1 and the other cap body 2. Furthermore, each piece 22 has a connecting portion 25 that is relatively narrow and connected to the outermost edge of the base 20.

[0029] Furthermore, of the ventilation holes formed in each piece 22, one ventilation hole is formed on the base 20 side of each piece 22 and is configured as a main ventilation hole 30. The other ventilation holes are formed on the radial outer end 24 side of the main ventilation hole 30 of each piece 22 and are configured as sub-ventilations 31 with an opening area smaller than the opening area of the main ventilation hole 30. The sub-ventilations 31 are provided in different shapes in the two front pieces 22(A), the two rear pieces 22(B), and the two left and right pieces 22(C).

[0030] The main vents 30 of each piece 22 are formed to have the same shape and size. The main vents 30 are formed to have a shape that widens from each other toward the outer radial ends 24 around the radial line Q and has a symmetrical inner edge 33 that is parallel to the outer edge 23 of the piece 22, and the width between the outer edge 23 of the piece 22 and the inner edge 33 of the main vent 30 is set to a predetermined dimension. In this embodiment, the main vent 30 is formed to have a substantially triangular shape. The shape of the main vent 30 is not limited to this and may be formed to be, for example, a substantially trapezoidal shape. In other words, any shape may be used as long as it has a symmetrical inner edge 33 that is parallel to the outer edge 23 of the piece 22.

[0031] In this embodiment, as shown in Fig. 3, when the maximum length from the center point P to the outer end 24 of the piece 22 is R, the main vent 30 is provided between the outermost edge 21 of the base 20 and a position that is R / 2 from the center point P. In this embodiment, the main vent 30 is provided between the outermost edge 26 of the connecting portion 25 and a position that is R / 2 from the center point P. Furthermore, when the width between the outer edge 23 of the piece 22 and the inner edge 33 of the main vent 30 is D, D = (1 to 1.5)t = 7 mm to 13.5 mm. Preferably, when t = 8 mm ± 0.5 mm, D = (1 to 1.5)t = 7.5 mm to 12.75 mm.

[0032] Furthermore, when the length from the center point P to the outermost edge 21 of the base 20 is R1, the length from the center point P to the outermost edge 26 of the connecting portion 25 is R2, the radial length of the connecting portion 25 is R3 (= R2 - R1), the circumferential width of the outermost edge 26 of the connecting portion 25 is S, and the circumferential spacing between the outermost edges 26 of the connecting portions 25 of adjacent pieces 22 is K, the following relationships are set: 120 mm ≦ R ≦ 170 mm, 10 mm ≦ R1 ≦ 36 mm, 15 mm ≦ R2 ≦ 48 mm, 5 mm ≦ R3 ≦ 12.5 mm, 6 mm ≦ S ≦ 25 mm, and 10 mm ≦ K ≦ 25 mm. Furthermore, when the length from the center point P to the radial inner end 34 of the main vent 30 is R4 and the maximum circumferential width between the outer edges 23 of the pieces 22 is A, the following relationships are set: 60 mm ≦ R4 ≦ 85 mm, and 58 ≦ A ≦ 96 mm.

[0033] 3, the maximum length R to the outer end 24 of the piece 22, the length R1 to the outermost edge 21 of the base 20, the length R2 to the outermost edge 26 of the connecting portion 25, and the length R4 to the inner radial end 34 of the main vent 30 are all radii of a circle centered at the center point P. Furthermore, the radial length R3 (= R2 - R1) of the connecting portion 25 is the radius of a circle centered at the center of the outermost edge 26 of the connecting portion 25 with radius R2 at the center point P.

[0034] Preferably, 155 mm≦R≦165 mm, 20 mm≦R1≦30 mm, 31 mm≦R2≦41 mm, 10 mm≦R3≦12.5 mm, 13 mm≦S≦17 mm, 20 mm≦K≦25 mm, and 70 mm≦R4≦80 mm.

[0035] Furthermore, a top vent 40 is formed in the base 20 and is centered on a front-rear line X that passes through the center point P and extends along the front-rear direction when viewed from above the hat C. This top vent 40 is formed in a shape with symmetrical inner lines that widen out toward the rear of the front-rear line X. The top vent 40 is formed in a substantially triangular shape. However, the shape of the top vent 40 is not limited to this, and it may be formed in a substantially trapezoidal shape, or in other words, any shape as long as it is formed in a shape with symmetrical inner lines that widen out toward the rear of the front-rear line X.

[0036] As shown in FIG. 2, with the cushion member T interposed, the first cap body 1 and the second cap body 2 are joined by a so-called chrysanthemum hole processing through the through-hole 23 of one of the pieces 22 of each of the aspens 3, 4, forming a chrysanthemum hole 28. The chrysanthemum hole processing can be easily performed using a well-known chrysanthemum hole processing machine. The chrysanthemum hole 28 allows for the formation of ventilation holes, thereby ensuring breathability even more reliably. Note that the first cap body 1 and the second cap body 2 may be joined not only by the chrysanthemum hole 28, but also by sewing or eyelet processing through the through-hole 23, for example. Even in the case of eyelet processing, ventilation holes can be formed, thereby ensuring breathability even more reliably.

[0037] Therefore, when manufacturing the hat C according to the embodiment, for example, the following procedure is performed. As shown in Figures 1 and 2, first, the cushion member T is attached to the first hat body 1. Then, the second hat body 2 is superimposed on the first hat body 1. At this time, the seam line of the sewn part 3 of the first hat body 1 is aligned with the seam line of the sewn part 4 of the second hat body 1, and parts of the first hat body 1 and the second hat body 2 are sewn together at this seam line. Also, as shown in Figure 2, a chrysanthemum hole is formed in each of the sewn parts 3, 4 of the first hat body 1 and the second hat body 2 through the through hole 23 of the piece 22. Then, a circumferentially stretchable rubber 14 is installed in the openings of the first hat body 1 and the second hat body 2, at the rear part opposite the visor 10, to form the stretchable part 14. Finally, the openings of the first hat body 1 and the second hat body 2 are sewn together. As a result, by enclosing the flat cushioning material T shown in Figure 3 inside the hat, it bends as shown in Figure 2, making the gaps between the pieces 22 approximately uniform, and at the same time, the area where the main air vent 30 is located also bends. Furthermore, a core material is inserted between one sheet 11 and the other sheet 12 of the visor 10 and sewn together to form the visor 10. Other appropriate finishing and processing are then performed.

[0038] In the hat C manufactured in this manner, the first hat body 1 and the second hat body 2 are formed in a bowl shape, and therefore the cushion member T is curved and interposed between the first hat body 1 and the second hat body 2. In this case, as shown in FIGS. 4 and 5(a), the cushion member T is interposed with a relatively uniform curve following the curvature of the first hat body 1 and the second hat body 2. In particular, each piece 22 has a main air vent 30, and the inner edge 33 of this main air vent 30 is parallel to the outer edge 23 of the piece 22, and the width D between the outer edge 23 of this piece 22 and the inner edge 33 of the main air vent 30 is set to a predetermined dimension and is uniform. Therefore, there is less variation in the degree of curvature in this area compared to conventional hats, and therefore the curvature is smooth and uniform. As a result, when this hat C is used, it is rounded and fits well to the head, significantly improving the fit. Furthermore, the cushion member T can protect the head from impact, and since the cushion member T is breathable, the inside does not easily become stuffy, and comfort can be maintained.

[0039] Furthermore, the material of cushion member T has an expansion ratio M of 12≦M≦18 and a thickness t of 7mm≦t≦9mm, making it relatively hard, but the width D between outer edge 23 of piece 22 and inner edge 33 of main vent 30 is set to D=(1-1.5)t=7mm-13.5mm, so it can be curved reliably and evenly. In particular, because the width D between outer edge 23 of piece 22 and inner edge 33 of main vent 30 is set to be equal to or greater than the thickness t, twisting is suppressed, and in this respect it can be curved reliably and evenly.

[0040] Furthermore, the cushion member T is provided with a connecting portion 25, the radial length R3 of which is set to 5 mm≦R3≦12.5 mm, and the circumferential width S of which is set to 6 mm≦S≦25 mm. This allows for uniform curvature at the connecting portion 25 in addition to uniform curvature at the location of the main air vent 30, thereby further improving the bendability and the fit of the hat C when used.

[0041] Furthermore, the length R4 to the radial inner end 34 of the main vent 30 is set to 60 mm≦R4≦85 mm, so the main vent 30 can be positioned appropriately, and by setting the width D between the outer edge 23 of the piece 22 and the inner edge 33 of the main vent 30 to a predetermined width, this portion can be curved reliably and evenly.

[0042] Furthermore, the base 20 is provided with top vents 40 formed in a shape with symmetrical inner lines that widen toward the rear of the front-to-rear line X. Therefore, the strength of the base 20 is somewhat weaker at the rear than at the front of the hat C, and therefore the rear piece 22 bends somewhat more toward the base 20 than the front piece 22. As a result, since the shape of the head is generally more vertically raised at the rear than at the front, the hat can be curved into a shape that follows the back of the head, further improving the fit.

[0043] <Test example> As shown in Figures 6 and 7, a test was conducted to measure the curvature of the hat cushion member T according to the example and the comparative example. The cushion member T according to the example had the planar shape shown in Figure 3 and was made of foamed polyethylene with an expansion ratio M of 14 and a thickness t of 8 mm. The dimensions were set as follows: R = 161 mm, D = 8 mm, R1 = 25 mm, R2 = 36.5 mm, R3 = 11.5 mm, R4 = 75 mm, S = 15 mm, K = 23 mm, and A = 82 mm. The cushion member T according to the comparative example was prepared in two versions: one in which the main vent hole 30 of the example was circular (21 mm diameter) as in the conventional example (Comparative Example 1), and one in which no main vent hole 30 was formed (Comparative Example 2). Other conditions were the same as those of the examples.

[0044] Then, when viewed from above, it was curved so that the outermost circumference was 630 mm (diameter 200 mm), and in the example, as shown in Figure 6, the angles of the tangents seen from the side of piece 22 (B) were measured at the end position e1 on the base 20 side of the main air vent 30, the middle position e2, and the position e3 of the inner radial end 34. In comparative example 1, the angles were measured at positions corresponding to the measurement positions in the example, and for cushion member T (comparative example 2) without main air vent 30, the angles were measured at the same positions as in comparative example 1. The results are shown in Figure 7.

[0045] In the results, for the conventional cushion member with rounded main vents according to Comparative Example 1, the angle at position e1 was approximately 19° and the angle at position e3 was approximately 42°, resulting in a change of 23° in the angle around the main vents. For the cushion member without a main vent according to Comparative Example 2, the angle changed by only 19°, from 33° at position e1 to 52° at position e3. In contrast, for the cushion member T according to the working example, in which the width D of the side portion forming the vent 30 is constant, the angle changed from 19° at position e1 to 47° at position e3, resulting in a change of 28°. From the above, it can be seen that the cushion member T according to the working example, with a constant width D, has a greater amount of curvature in the main vent area and is more rounded than the comparative example.

[0046] In the cushion member T according to the above embodiment, the shape and number of the pieces 22 are not limited to those described above and may be modified as appropriate depending on the intended use of the hat C. The shape of the main vent 30 is also not limited to a substantially triangular shape and may be, for example, a trapezoidal shape. In other words, any shape may be used as long as it has a symmetrical inner edge 33 parallel to the outer edge 23 of the pieces 22. Furthermore, the shape and number of the sub-vents 31 are also not limited to those described above and may be modified as appropriate. Furthermore, in the hat C according to the embodiment, the visor 10 may have any shape, and the present invention is, of course, applicable to a hat C without a visor 10. The present invention is not limited to the above-described embodiment, and those skilled in the art will readily be able to make numerous modifications to these exemplary embodiments without substantially departing from the novel teachings and advantages of the present invention. These numerous modifications are within the scope of the present invention. [Explanation of symbols]

[0047] C hat T Hat cushion material 1 One side cap body 2 Other cap body 3. Renge 4. Renge 10 Eaves 14 Telescopic part X Anteroposterior center line 20 base 21 outermost edge of base 22 One side P center point θ angle P center point Q Radial lines 23 outer edge 24 Outer termination 24a notch 25 Continuous section 26 Outermost edge of connecting section 28 Kikuana 30 Main vent 31 Sub-vent 33 Medial margin 34 Main vent inner end 40 top ventilation holes

Claims

1. A flat, flexible cushion member for a hat is curved and interposed between a first bowl-shaped cap body and a second bowl-shaped cap body that is provided over the first bowl-shaped cap body, and the cushion member for a hat comprises a base portion having a center point P and facing the tops of the first and second cap bodies, and a plurality of tongue-shaped pieces formed on the base along radial lines that extend radially from the center point P at equal angular intervals of θ, and each piece has a plurality of air vents formed therein. The pieces are each formed to have a shape that spreads outward from each other toward its outer end in the radial direction and has an outer edge that is symmetrical about the radial line, and the outer edges of the pieces are each formed to have the same width in the circumferential direction about the center point P, Among the ventilation holes formed in each of the pieces, one ventilation hole is formed on the base side of each of the pieces and configured as a main ventilation hole, and the other ventilation holes are formed on the outer end side of the main ventilation hole of each of the pieces in the radial direction and configured as sub ventilation holes, a cushion member for a hat, characterized in that the main vents of each piece are formed to have the same shape and size, the main vents are formed to widen from each other toward the outer ends of the radial lines of each piece as centers on the radial lines of the pieces, and have symmetrical inner edges parallel to the outer edges of each piece, and the width between the outer edges of each piece and the inner edges of the main vents is set to a predetermined dimension.

2. The foamed plastic has an expansion ratio M of 12≦M≦18 and a thickness t of 7 mm≦t≦9 mm. Six pieces are provided on the base at equal angular intervals of θ (=60°) around the center point P, When the maximum length from the center point P to the outer end of the piece is R, the main air vent is provided between the outermost edge of the base and a position that is R / 2 in length from the center point P, When the width between the outer edge of the piece and the inner edge of the main air vent is D, 2. The cushion member for a hat according to claim 1, wherein D is set to (1 to 1.5) and t is set to 7 mm to 13.5 mm.

3. a connecting portion provided on the one side and connected to the outermost edge of the base portion; the main vent is provided between the outermost edge of the connecting portion and a position that is a distance of R / 2 from the center point P, where R is the maximum length from the center point P to the outer end of the piece portion; The length from the center point P to the outermost edge of the base is R1, The length from the center point P to the outermost edge of the connecting portion is R2 The radial length of the connecting portion is R3 (= R2 - R1), The circumferential width of the outermost edge of the connecting portion is S, When the circumferential distance between the outermost edges of the adjacent pieces is K, 3. The cushion member for hats according to claim 2, wherein the following are set: 120 mm≦R≦170 mm, 10 mm≦R1≦36 mm, 15 mm≦R2≦48 mm, 5 mm≦R3≦12.5 mm, 6 mm≦S≦25 mm, and 10 mm≦K≦25 mm.

4. When the length from the center point P to the radially inner end of the main vent hole is R4, 4. The cushion member for a hat according to claim 3, wherein R4 is set to 60 mm≦R4≦85 mm.

5. 5. A cushion member for a hat as described in any one of claims 1 to 4, characterized in that a top air vent is formed in the base portion with its center on a front-to-back line passing through the center point P and extending along the front-to-back direction as viewed from above the hat, and the top air vent is formed in a shape having symmetrical inner lines that widen toward the rear of the front-to-back line.

6. The device comprises a bowl-shaped one cap body formed by sewing together a plurality of roughly triangular astragalus pieces of roughly the same size at their sides in order, a second cap body formed by sewing together a plurality of roughly triangular astragalus pieces of roughly the same size corresponding to the one cap body in order at their sides in order and superimposed on the one cap body, and an air-permeable plate-like cushion member interposed between the one cap body and the other cap body, the cushion member having a base portion facing the tops of the one cap body and the other cap body, and a pair of cushion members integrally formed on the base portion, the cushion member extending in radial directions at equal intervals from the center point of the base, and a cap constructed by overlapping the one cap body and the other cap body with a tongue-shaped cushion member and a plurality of pieces, the number of which is equal to the number of astragalus of the one cap body and the other cap body, and by aligning the stitching line of the astragalus of the one cap body with the stitching line of the astragalus of the other cap body, and by interposing the cushion member between the one cap body and the other cap body so that each piece of the cushion member corresponds to the astragalus of the one cap body and the other cap body, and by sewing the one cap body and the other cap body together at the stitching line of the astragalus of the one cap body and the stitching line of the astragalus of the other cap body, A hat comprising the cushion member according to any one of claims 1 to 4 as the cushion member.

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