KR102118712B1 - Head protection gear - Google Patents

Abstract

When not in use, it can be folded and stored and stored in a bulky manner. At the same time, it can be easily transformed into a three-dimensional cap shape when used, and quickly mounted, and can also be used as other functional products such as cushion pads and tubes. A simple protective cap is provided.
The simple protective cap is provided with a vortex-shaped portion composed of a plurality of vortex-shaped cutouts that are directed outward from the center of the plate-like synthetic resin foam material having a predetermined thickness and penetrate in the thickness direction, wherein the plurality of vortex-shaped cutouts, The starting end is arranged on the circumference of a predetermined radius from the center in the center of the foam material, and the end is arranged at a position exceeding 360 degrees from the starting end, forming a vortex line exceeding one layer.

Description

Simple protective cap {HEAD PROTECTION GEAR}

The present invention relates to a simple protective cap that is foldable when not in use, can be stored and stored in a bulky manner, and is capable of reliably protecting a user's head by quickly mounting it in a disaster or the like.

Conventionally, a helmet having a substantially hemispherical shape made of reinforced plastic is used to protect the head from bruises caused by falling objects or obstacles, such as when evacuating during work or a disaster. However, since such a helmet is bulky, it is inconvenient to carry when not in use, or it is expensive to prepare as many people as possible, and a storage space according to the size of the helmet is required. In particular, when it is necessary to store a large number of helmets in preparation for a disaster such as an earthquake, a relatively large storage space is required even if the helmets are stacked. Therefore, various folding helmets have been proposed and used. On the other hand, when evacuating in the event of a disaster, it is preferable to use it as another functional product when not in use as a helmet because many items cannot be carried. Most of them could not be.

In addition, storage and storage are easier than before, and when not in use, folding head protection equipment such as a disaster prevention hood that can also be used as a cushion is used, but the head protection performance is inferior to that of a helmet. Therefore, while improving the protection performance of the head, it is possible to fold and store it, and it is possible to easily deform and wear it in a three-dimensional hat shape in case of a disaster, and a simple protective cap using a long cushioning material is also proposed. There is (Patent Document 1).

The simple protective cap described in Patent Literature 1 uses a foamed polyurethane sheet having excellent shock absorbency, cut into a long length and wound in a vortex shape as a cap body. The vicinity of the wound end is fixed with a rivet so that the wound polyurethane foam sheet is not released. In addition, the rivet simultaneously secures the band and chin strap to the cap body. This band prevents loosening of the narrow polyurethane sheet forming the vortex-shaped hat body when it is worn by pushing the vicinity of the center portion of the hat body and transforming it from a flat shape into a three-dimensional cap shape. In addition, the band is fixed to the center of the cap body in order to prevent the band from being rubbed.

Japanese Utility Model Registration No. 3196499

As described above, the helmet made of reinforced plastic has excellent performance for protecting the head, but has a disadvantage in that it is expensive and requires a large space for storage, so it cannot be used only as a helmet for protecting the head. In addition, the folding head protection equipment such as a disaster prevention hood is easy to store because it can be folded and stored, but the protection performance is weak compared to a helmet made of reinforced plastic.

In addition, although the simple protective cap described in Patent Literature 1 is flat and can be stored, in the production, the long-expanded polyurethane sheet is wound in a vortex shape, and the wound end is wound so as not to loosen the wound polyurethane foam sheet. It is necessary to fix the vicinity with rivets, and in addition, it is necessary to mount a band to prevent the polyurethane sheet wound in a vortex shape from loosening when worn by pushing the vicinity of the center of the hat body into a three-dimensional hat shape. Therefore, a plurality of parts are required, and there is a problem in that assembly work is complicated and takes time.

Therefore, the present invention is to solve the above-mentioned problems of the prior art, the purpose of which is folded into a flat shape when not in use, can be stored and stored in a bulky manner, and at the same time, it is easily transformed into a three-dimensional cap shape when used to quickly It is to provide a simple protective cap that can be mounted easily and can also be used as other functional products such as cushions and rugs and tubes.

In addition, another object of the present invention is to provide a simple protective cap that does not require an assembly operation and can be manufactured simply and inexpensively.

According to the present invention, the simple protective cap is provided with a vortex-shaped portion made of a plurality of vortex-shaped cutouts that go outward from the center of the plate-like synthetic resin foam material having a predetermined thickness and penetrates in the thickness direction. The vortex-shaped cut line is formed by a vortex line in which the starting end is arranged on a circumference of a predetermined radius from the center in the center of the foam material, and the end is arranged at a position exceeding 360 degrees from the starting end, and exceeds one layer.

The starting end is arranged on a circumference of a predetermined radius from the center in the center of the foam material, the vortex-shaped portion consisting of a plurality of vortex-shaped cut-out lines penetrating in the thickness direction toward the outside from the center of the plate-like synthetic resin foam material. It is arranged at a position exceeding 360 degrees from this starting end, and is provided with a vortex line exceeding one layer, so that when mounted to the head in use, the vortex line shape of the central part of the foam material is pushed out by the head and the size of the user's head. It is possible to transform into a three-dimensional hat shape that fits. In addition, since a circular portion having a predetermined area without a cut line is provided in a portion corresponding to the crown, it is possible to reliably protect the crown, and it is possible to realize soft deformation by following the shape of the head. In addition, since this simple protective cap can be manufactured only by forming a plurality of vortex-shaped cut lines penetrating in the thickness direction in a plate-like synthetic resin foam material, assembling from a plurality of parts is unnecessary and very simple. However, it is possible to manufacture inexpensively.

The plurality of vortex-shaped cut lines are arranged at equal intervals on the circumference of a predetermined radius from the center at the center of the foam material, and the ends are arranged at positions exceeding 360 degrees from the start, so that the vortex lines exceeding one ply It is preferably formed of. Accordingly, since the vortex line is evenly arranged on the circumference of a predetermined radius, it is possible to further follow the shape of the head and realize smooth deformation.

It is preferable that the number of the plurality of vortex-shaped cut lines is three or more. By setting the number of vortex-shaped incision lines to 3 or more, it is possible to smoothly deform from a plate shape to a hat shape when worn, and furthermore, it is difficult to cause mold collapse (a phenomenon in which a projected state in a spiral shape is disturbed).

It is also preferable that the vortex-shaped cut line has a projection that is cut so as to protrude to the outer circumferential side or inner circumferential side of the vortex-shaped cut line. By providing a projection on the vortex-shaped cut line, a projection groove is formed on the outer side or inner side of the band-shaped portion formed between the vortex-shaped cut lines, and the projection is formed on the inner or outer side of the belt-shaped portion facing the projection groove. A groove is formed that engages the groove. Therefore, when the vortex-shaped portion is pushed out with the user's head and deformed into a three-dimensional hat shape, the projection groove formed on the side of the belt-shaped portion moves upward while being guided to the opposite groove, so that there is no deflection, and the overall balanced dome shape is good. The transformation to is made. In addition, the band-shaped portion is pushed upward in a spiral shape, and since the projection groove of the belt-shaped portion is caught in the opposite groove, excessive deformation is suppressed due to torsional resistance, and a dome-shaped cap in which the sides of the belt-shaped portion overlap each other in a good balance. It is possible to form a shape.

It is preferable that a half-cut line that at least a part does not penetrate in the thickness direction is provided near the outer circumferential end of the foam material and is provided with a bent portion capable of bending the outer circumferential end to one side. By providing a bent portion in which at least a portion of the foam material does not penetrate at least partially in the thickness direction near the outer circumferential end of the foam material to bend the outer circumferential end to one side, the bent portion can protect the user's ears and neck. In addition, this simple protective cap can be produced only by forming a plurality of vortex-shaped cut lines penetrating the plate-like synthetic resin foam material in the thickness direction and a half-cut line at least part of which does not penetrate in the thickness direction in the vicinity of the outer circumferential end. Thus, as in the prior art, assembling work is unnecessary from a plurality of parts, and it is possible to manufacture very simply and inexpensively.

The foam material is formed in a polygonal shape, and in the bent portion, a wedge-shaped cut line is provided so as to form a wedge-shaped protrusion in a plan view by making the tip portion larger than the source at a position corresponding to each corner portion of the foam material, and half It is preferable that the cut wires are respectively provided at positions where the wedge-shaped cut lines on both sides of the root of the protrusion and the edge of the foam material are connected. In this way, it is possible to reliably maintain the bent state and the non-bended state at the time of storage when the bent portion is used.

The thickness of the foam material is preferably formed such that the side surfaces of the plurality of band-shaped portions formed between the plurality of vortex-shaped cut lines in a state attached to the head are partially overlapped with each other and pushed out into a spiral shape without being tightly deformed. Do. Accordingly, since the user's head is wrapped in a band-like portion without gaps, the head is reliably protected. Here, "without a gap" means that there is no gap between the band-shaped portions so that the user's head is clearly visible, and the gap is very narrow.

The foamed material is preferably an independent foamed foam formed of at least one foamed resin selected from the group consisting of foamed polyethylene, foamed polyurethane and ethylene-vinyl acetate copolymer resin foam. Accordingly, it is possible to secure adequate cushioning properties and securely protect the head, and also to be used as a seat cushion or tube (float) in a folded state.

According to the present invention, the simple protective cap is directed outward from the center of the plate-shaped synthetic resin foam material, and has a vortex-shaped portion composed of a plurality of vortex-shaped cut lines penetrating in the thickness direction, and the starting end is centered on the central portion of the foamed material. It is arranged on the circumference of a predetermined radius, and the end is disposed at a position exceeding 360 degrees from the start end, and is provided as a vortex line exceeding one layer. The additional head may be pushed out by the head and transformed into a three-dimensional hat shape suitable for the user's head size. In addition, a half-cut line is provided near the outer circumferential end of the foam material so that at least a portion does not penetrate in the thickness direction to provide a bent part that can bend the outer circumferential end to one side, and the bent part can protect the user's ear and neck parts. . In addition, the simple protective cap can be manufactured only by forming a plurality of vortex-shaped cut lines penetrating the plate-shaped synthetic resin foam material in the thickness direction and a half-cut line that does not penetrate at least partially in the thickness direction near the outer circumferential end. , As in the prior art, assembling work is unnecessary from a plurality of parts, and it is possible to manufacture very simply and inexpensively. Moreover, when not in use, it is possible to immediately put it in a plate-like state, so that it is possible to reduce the storage space and also to provide portability.

In addition, the plurality of vortex-shaped cut lines are arranged at equal intervals on the circumference of a predetermined radius from the center at the center of the foam material, and the ends are arranged at positions exceeding 360 degrees from the beginning, exceeding one ply. It is formed of a vortex line, and a circular portion of a certain area positioned at a portion corresponding to the crown can reliably protect the crown, and it is possible to follow the shape of the head and realize soft deformation.

In addition, by using an independent foamed foam material formed from at least one of foamed polyethylene, foamed polyurethane, and ethylene-vinyl acetate copolymer resin foam, it is possible to secure adequate cushioning properties and securely protect the head, and at the same time folded state. It can also be used as a low seat cushion or tube.

1 is a perspective view of a use state schematically showing a configuration of a simple protective cap in a first embodiment of the present invention.
FIG. 2 is a perspective view of a folded state schematically showing the configuration of the simple protective cap of FIG. 1.
Fig. 3 is a plan view (a view from the top), a bottom view (a view from the bottom), and a cross-sectional view along line AA of the simplified protective cap of Fig. 1.
4 is a plan view (a view from the top) and a bottom view (a view from the bottom) of the use state of the simple protective cap of FIG. 1.
Fig. 5 is a front view, a side view, and a cross-sectional view taken along line BB of the simple protective cap shown in Fig. 1.
Fig. 6 is a plan view of the folded state of the simple protective cap according to the second embodiment of the present invention (a view seen from above) and a front view of the used state.
7 is a perspective view of the state of use of the simple protective cap of FIG. 6.
Fig. 8 is a plan view of a folded state showing another example of a simple protection cap in the second embodiment (another pattern of a vortex-shaped cut line).
Fig. 9 is a plan view of the folded state of the simple protective cap according to the third embodiment of the present invention (view from the top) and a side view of the used state.
10 is a perspective view of the state of use of the simple protective cap of FIG. 9.
11 is a front view and a side view of a use state showing another example of the simple protection cap in the third embodiment.

Hereinafter, embodiments of the simplified protective cap according to the present invention will be described with reference to the drawings.

1 shows the configuration (used state) of the simple protective cap 100 in the first embodiment of the present invention, and FIG. 2 shows the configuration (folded state) of the simple protective cap 100. 3(a) is a view of the folded state of the simple protective cap 100 seen from above, (b) is a view seen from below, and (c) is a cross-sectional view along line A-A. Figure 4 (a) is a view of the state of use of the simple protection cap 100 from above, (b) is a view seen from below. 5(a) is a view of the state of use of the simple protection cap 100 seen from the front, (b) is a view seen from the side, and (c) is a sectional view taken along line B-B in FIG. 4(a). In addition, in FIGS. 1 to 5, the half-cut line 21 is indicated by a dotted line in order to distinguish it from the cut line penetrating in the thickness direction (swirl-shaped cut line 11 and wedge-shaped cut line 23).

1 to 5, the simple protective cap 100 according to the present embodiment is directed toward the outside from the vicinity of the center of the plate-shaped synthetic resin foam material 1 having a predetermined thickness and penetrates in the thickness direction. A vortex-shaped portion 10 made of a vortex-shaped cut-out line 11 and a half-cut line 21 that does not penetrate at least partially in the thickness direction is provided near the outer circumferential end of the foam material to bend the outer circumferential end to one side. It is provided with a bend 20 possible.

In this embodiment, the foaming material 1 is formed in a square shape using plate-shaped foamed polyethylene. The thickness of the foamed material 1 is in the state of being attached to the head, and the side surfaces 30a of the plurality of band-shaped portions formed between the plurality of vortex-shaped cut lines 11 partially overlap each other and are pushed out into a spiral shape without gaps. It is designed to be formed so as to be deformable into a dome shape, for example, preferably 20 mm to 80 mm, and more preferably 30 mm to 60 mm. When the thickness of the foam material 1 is less than 20 mm, when the swirling line part 10 is pushed out by the head and deformed into a three-dimensional hat shape when worn, it is formed between the plurality of swirling cut lines 11. There is a possibility that the side surfaces 30a of the plurality of strip-shaped portions do not partially overlap with each other, and a gap is formed, thereby deteriorating protection. In addition, when the thickness is larger than 80 mm, the shape of the cap is not smoothly deformed, and the volume or weight of the protective cap itself increases, so that the user's movement may be disturbed. Foamed polyethylene is flexible and easy to bend, and is excellent in cushioning, flexibility, weatherability, heat insulation, processability, etc. In addition, it has a low coefficient of friction, and it is possible to bring soft deformation into a three-dimensional shape. ). Moreover, you may use well-known foamed resin materials, such as foamed polyolefin other than foamed polyethylene, foamed polyurethane, ethylene-vinyl acetate copolymer resin foam, etc. as foamed material (1). In addition, in order to make it difficult to absorb into the foam material 1 and use it as a protective cap, an independent bubble-type foam material is preferable from the viewpoint of functioning as a tube.

The vortex-shaped portion 10 is formed of a plurality of vortex-shaped cut-out lines 11 provided at a substantially central portion of the foam material 1. Here, the plurality of vortex cut-out lines 11 are formed at the same time as, for example, a half-cut line 21 to be described later using a Thompson blade or the like. It is preferable that three or more vortex-shaped cut lines 11 are provided, more preferably five or more, and particularly preferably seven or more. In this embodiment, eight vortex-shaped cut lines 11 are provided. Accordingly, it is possible to smoothly deform from a plate shape to a hat shape when worn. When the number of the vortex-shaped cut-out lines 11 is less than three, it is difficult to deform when forming the cap body at the time of wearing, and in addition, there is a case where the fit is lowered on the head. In addition, the vortex-shaped cut line 11 has its starting end arranged at equal intervals on the circumference of a predetermined radius (for example, 30 mm to 50 mm) from the center of the center of the foam material 1, and the end starts. It is arranged at a position exceeding 360 degrees from the stage, and is formed as a vortex line exceeding one layer. By arranging the starting end of the vortex-shaped cut line 11 on the circumference of a predetermined radius from the center in the central portion of the foam material 1, a circular portion of a certain area is provided without a cut line in the portion corresponding to the crown, and It is possible to form a dome shape close to the shape of the head so as to reliably protect. In addition, by disposing the end of the vortex-shaped cut line 11 at a position exceeding 360 degrees from the starting end, and forming a layer of the vortex as an excess vortex line, a depth sufficient to be worn as a hat body when worn (overturning depth) It is possible to realize deformation. On the other hand, if the end is set to a position not exceeding 360 degrees from the start end, the depth as the cap body when worn becomes insufficient, and the depth to be flipped over is not easily deformed into a three-dimensional cap shape, and the cap body when worn As the depth as is insufficient, the depth to be flipped over becomes easy to become shallow, and the stability and protection performance when worn is deteriorated. In addition, the interval between the two vortex-shaped cut lines 11 is preferably 5 mm to 20 mm. When the distance between the two vortex-shaped cut lines 11 is smaller than 5 mm, since the band-shaped portion 30 formed therebetween becomes thin, there is a fear that the strength is lowered and the impact buffering effect is lowered. On the other hand, when the distance between the two vortex-shaped cut lines 11 is larger than 20 mm, soft deformation is difficult when forming the cap body when worn, and further, the fit to the head is deteriorated. In addition, although the distance between the line and the line is arranged at equal intervals in the present embodiment, the vortex-shaped cut line 11 may be arranged to gradually widen toward the end direction. Further, in the present embodiment, the eight vortex-shaped cut lines 11 are of the same shape, but different line shapes may be used. In addition, the vortex-shaped cut line 11 may be formed in a meandering shape (a snake-like shape) in a horizontal wave shape.

The bent portion 20 is formed at each corner portion of the foam material 1. The bent portion 20 is provided with a half-cut line 21 that does not penetrate at least partially in the thickness direction in the vicinity of each corner portion of the foam material 1, and the outer end thereof can be bent to one side (bottom) It is formed into a shape. In addition, a wedge-shaped cut-in line 23 is provided which penetrates in the thickness direction to form a wedge-shaped protrusion 22 in a plan view with a larger tip than the root at a position corresponding to each corner of the foam material 1, respectively. The half-cut wires 21 are respectively provided at positions connecting the edge edges of the wedge-shaped cut lines 23 on both sides of the protruding portion 22 and the foam material 1. That is, the bent portion 20 is formed by providing a wedge-shaped cut line 23 and half-cut lines 21 on both sides thereof. The uncut portion corresponding to the half cut wire 21 (the connection portion remaining without being cut) functions as a bending hinge. In addition, by providing the protrusions 22, it is possible to reliably maintain the bent state and the non-bended state (folded state) of the bent part 20, respectively. In addition, the shape and size of the protrusion 22 is not limited thereto.

As shown in Figure 1, when wearing the simple protection cap 100, the swirl line-shaped portion 10 is extruded upward by the head to form a cap body. In addition, three of the four bent portions 20 are bent downward to protect the two ear and neck portions, and one bent portion 20 is not bent and is used as the shade of the hat. . In this way, it is possible to reliably protect the head with the hat body formed by the vortex-shaped portion 10, and it is also possible to cover and protect the ears and neck portion with the bent portion 20.

In manufacturing the above-mentioned simple protective cap 100, for forming a plurality of vortex-shaped cut lines 11, half-cut lines 21 and wedge-shaped cut lines 23 for the plate-shaped synthetic resin foam material 1 It is only press-processed using a Thomson type with a Thomson blade.

As described above, the simple protective cap 100 of the present embodiment has a plurality of vortex-shaped cutout lines 11 facing outward from the center of the plate-like synthetic resin foam material 1 having a predetermined thickness and penetrating in the thickness direction. ), and a half-cut line 21 that does not penetrate at least partially in the thickness direction is provided near the outer circumferential end of the foam material 1 and the outer circumferential end is bent to one side (bottom). It is provided with a bend 20 possible.

Accordingly, when mounted on the head in the event of a disaster, it is possible to rapidly deform the vortex-shaped portion 10 at the center of the foam material by the head and deform it into a three-dimensional cap shape. In addition, the bent portion 20 can protect the ears and neck. Further, a plurality of vortex-shaped cut lines 11 penetrating the plate-like synthetic resin foam material 1 in the thickness direction, and half cut lines 21 at least partially not penetrating in the thickness direction in the vicinity of the outer peripheral end are formed. Since it is possible to do it alone, it is not necessary to assemble work from a plurality of parts as in the prior art, and it is possible to manufacture very simply and inexpensively. In addition, when not in use, it is possible to immediately put the plate in a state, so that storage space can be reduced and portability can be provided.

In addition, the plurality of vortex cut-out lines 11 are arranged at equal intervals on the circumference of a predetermined radius from the center at the center of the foam material 1, and the ends are arranged at a position exceeding 360 degrees from the start. It is formed of a vortex line that exceeds one layer, and a circular area of a certain area located in the part corresponding to the parietal protects the parietal reliably, and it is possible to follow the shape of the head and realize soft deformation. Do.

In addition, the foam material 1 is formed in a polygonal shape, and the bent portion 20 has a wedge-shaped protrusion (see FIG. The wedge-shaped cut-out line 23 is provided to form 22, and the half-cut line 21 is a position connecting the edge edges of both sides of the wedge-shaped cut line 23 of the root of the protrusion 22 and the foam material 1 It is provided in each, it is possible to reliably maintain the bent state and the non-bended state (folded state) of the bent portion 20, respectively.

The foaming material 1 is formed of at least one foamed resin body among flexible and easily bendable foamed polyethylene, foamed polyurethane, and ethylene-vinyl acetate copolymer foams, which realizes soft deformation and secures moderate buffering properties. Therefore, it is possible to reliably protect the head in the event of a disaster, and it is also possible to use it as a seat cushion or tube (float) in a folded state.

In addition, the foamed material 1 may have a laminated structure of two or more layers, or may have different physical properties, materials, and outer shell shape, such as hardness, of the foamed materials constituting each layer. For example, it is possible to laminate a foam material having a different hardness, to make a soft foam material on the side in contact with the head, and to use a hard foam material on the outside of the protective gear, to make a simple protection cap having both protection and wearing comfort.

In addition, a plurality of vortex cut-out lines 11 are formed in a state in which a resin film or sheet (including plate material) is laminated on the surface of the foam material 1 on the protruding side (the side that becomes the outer side of the protective cap) when projecting. You may do it. The laminated resin film or sheet is selected to have hardness, flexibility, and deformability to such an extent that it does not significantly impair the projecting deformation during mounting. With such a configuration, a soft deformation is achieved by following the shape of the head at the time of mounting, and at the same time, an excellent simple protective cap 100 is obtained by the protection performance of the head.

Further, a plurality of vortex cut-out lines 11 may be formed in a state in which a covering material is laminated on the surface of the foam material 1 on the side protruding at the time of mounting (the side that becomes the outer side of the protective cap). It is possible to reinforce the surface of the foamed material 1 by forming a plurality of vortex-shaped cut lines 11 in a state in which the coating material is laminated, and by applying a flame-retardant coating material, the surface of the foam is temporarily fire resistant to detonation and the like. It is possible to give. In addition, after forming a plurality of vortex-shaped cut lines 11 in the foam material 1, the cap shape (dome shape) at the time of attaching the surface of the protruding side (the side that becomes the outer side of the protective cap) at the time of mounting is formed. It may be covered with a stretchable covering material to follow, or in the case of a non-stretchable coating material, the central portion may be formed in a shape protruding in a mountain shape with a towering shape.

In addition, in order to increase the flame retardancy of the foam material 1, it is preferable to apply a flame retardant synthetic resin foam material. Further, as another method, a plurality of vortex-shaped cut lines 11 are cut or half-cut of the bent portion 20, and a flame-retardant material is coated on the surface of the foamed material 1 deformed to a mounted form. You may do it.

In addition, although the example in which the foam material 1 is formed in a rectangular shape in the simple protective cap 100 of the above-described embodiment has been described, the present invention is not limited thereto. It may be triangular or hexagonal. Besides, it may be round or oval.

In addition, although the shape of the protrusion 22 in the simple protection cap 100 of the above-described embodiment has been described as a wedge shape, the present invention is not limited to this. Any shape that can maintain the bent state and the non-bended state (folded state) of the bent portion 20 may be sufficient.

In addition, although the example in which the transverse width of the wedge-shaped protrusion 22 is relatively large in the simple protection cap 100 of the above-described embodiment has been described, the present invention is not limited to this. The lateral width of the protruding portion 22 may be made small, and in this case, the length of the half cut line 21 becomes relatively long, and it is possible to improve the durability of bending, and at the same time, the area of the bent portion 20 is increased. It is possible to become larger and to protect the ear and neck parts more safely.

In addition, in the simple protection cap 100 of the above-described embodiment, the wedge-shaped protrusion 22 may not be formed, but only the bent portion 20 by only the half cut line 21 may be formed. Further, the portion forming the bent portion 20 is not limited to the edge portion, and may be provided in the vicinity of the outer circumferential end of the foam material, and may be formed along each edge, for example.

Moreover, in the simple protective cap 100 of the above-described embodiment, the configuration is provided with the bent portion 20, but the bent portion 20 may be configured without it. Moreover, you may make it the structure which mounts components, such as a belt, suitably so as to become a chin strap.

Next, the simple protective cap 101 according to the second embodiment will be described with reference to FIGS. 6 to 8. As shown in Fig. 6, the vortex line-shaped portion 10 of the simple protective cap 101 is formed of a plurality of vortex-shaped cut-out lines 12, but in the vortex-shaped cut-out line 12 according to the present embodiment A plurality of protrusions 12a cut out so as to protrude in an inverted V-shape on the outer circumferential side of the vortex line are provided at regular intervals. By providing this projection 12a, the projection groove 30b is continuously formed in the thickness direction of the foam material 1 on the side surface 30a on the outer circumferential side of the belt-shaped portion, and the belt shape is opposite to the projection groove 30b. On the inner circumferential surface of the negative portion, a V-shaped groove is formed, which is tightly coupled with the projection groove 30b. Accordingly, when worn, that is, in the case of deforming the vortex-shaped portion 10 with the user's head into a three-dimensional cap shape, the protrusion groove 30b formed on the side surface 30a of the belt-shaped portion faces the opposite V-shape. Since it moves upward while being guided in the groove, there is no deflection in the movement, and a deformation into a well-balanced dome shape is achieved as a whole. And, at this time, the band-shaped portion 30 is pushed upward in a spiral shape, but since the projection groove 30b of the band-shaped portion is hung in the opposite V-shaped groove, torsional resistance is generated, and excessive deformation is suppressed. It is possible to form a dome-shaped hat shape in which the side surfaces 30a of the strip-shaped portion overlap each other in good balance.

The vortex cut-out line 12 shown in FIG. 6 has nine projections 12a for one cut line, and the projections 12a of each vortex cut-out line 12 are vortex-shaped sections 10 It is arranged substantially on the same straight line in a radial shape at an angle of approximately 45 degrees from the vicinity of the center of. Accordingly, the deformation into a dome shape during use is stably performed.

In addition, the shape, the number, and the placement position of the protrusion provided in the vortex-shaped cut line are not limited to those shown in FIGS. 6 and 7, and any shape, number, and placement position as long as the functions described in this embodiment are provided. good. As an example, like the vortex line-shaped part 10 shown in FIG. 8, one protruding part 13a may be provided with respect to one cutting line 13. As shown in FIG. In addition, the direction in which the projections 12a are formed is not limited to the outer circumferential side of the vortex cut line 12, and may be a combination of the outer circumferential side and the inner circumferential side of the vortex cut line 12. .

In the present embodiment, other configurations of the simple protective cap 101 and descriptions of the manufacture of the simple protective cap 101 are the same as those of the first embodiment described above, and have the same effect.

Next, the simple protective cap 102 according to the third embodiment will be described with reference to FIGS. 9 to 11. As shown in Fig. 9, the foamed material 1'of the simple protective cap 102 according to the present embodiment is a shape in which a part of a substantially circular outer periphery is extended outward by using a plate-shaped foamed polyethylene (water drop shape). It is formed of. The vortex-shaped portion 10 is provided at a substantially central portion of the approximately circular portion of the foam material 1', and the portion extending outward from the approximately circular portion of the foam material 1'is the cap 40 of the hat. As provided. In FIG. 6, the plurality of vortex cut-out lines 12 constituting the vortex line-shaped part 10 is a vortex cut-out line 12 having a projection 12a described in the second embodiment, but described in the first embodiment It may be a vortex-shaped cut line 11 without a projection 12a. A cut line 50 for the chin strap for attaching the chin strap 51 is provided near the outer circumference of the vortex line 10 of the foam material 1'. In use, as shown in Fig. 10, the chin strap 51 is attached to the cut line 50 for the chin strap, and the vortex line 10 of the simple protective cap 102 is pushed upward with the user's head. After being transformed into a three-dimensional cap shape, it is possible to prevent the simple protective cap 102 from falling off by tightening the belt of the chin strap 51.

Since the simple protective cap 102 according to the present embodiment does not have the bent portions 20 provided in the above-described first and second embodiments, it has a compact shape and can be handled not too large. In addition, in the present embodiment, as the shape of the foam material 1 ′, “water drop shape” is illustrated in FIG. 9, but is not limited thereto, and may be a polygonal shape such as a circular shape, a triangular shape, or a square shape.

In addition, as shown in FIG. 11, the simple protection cap 102 according to the present embodiment includes a cover portion 60 that protects a user's ear or neck portion at a peripheral portion excluding the sunshade portion 40 of the foam material 1 ′. ). The cover portion 60 is provided on the bottom side (head mounting side) of the simple protection cap 102, and these are not provided so as not to interfere with the functions of the vortex line-shaped portion 10 and the chin strap cut line 50 It is formed by laminating a foam block or the like on the periphery of the foam material 1'. By providing the cover portion 60, in addition to protecting the user's ears and neck, stability during mounting is also improved.

In the present embodiment, other configurations of the simple protective cap 102 and descriptions of the manufacture of the simple protective cap 102 are the same as those of the first and second embodiments described above, and have the same effect.

The present invention is not limited to the above embodiments, and includes various forms of design changes within the technical scope without departing from the gist of the invention described in the claims.

The present invention can be used to protect the head from bruises caused by falling objects or obstacles, such as when evacuating at the time of work or disaster, and when not in use, it can be folded, stored and stored compactly, and can also be used as a rug or tube. will be.

1, 1': Foam material
10: swirl line shape
11, 12, 13: Vortex cut line
12a, 13a: projection
20: bend
21: half cut line
22: protrusion
23: wedge cut line
30: strip shape
30a: side of the strip
30b: the projection groove of the strip
40: sunshade
50: cutting line for chin strap
51: chin strap
60: cover
100, 101, 102: simple protective cap

Claims (8)

It is provided with a vortex-shaped portion consisting of a plurality of vortex-shaped cut-out lines that are directed outward from the center of the plate-like synthetic resin foam material having a predetermined thickness and penetrate in the thickness direction, but do not reach the outer circumferential end,
The start ends of the plurality of vortex cut lines are arranged at equal intervals on a circumference of a predetermined radius from the center of the central portion of the foam material, and the ends of the plurality of vortex cut lines are 360 degrees from the start end. It is disposed in an excess position to form a plurality of vortex lines exceeding one layer,
Prepare a circular area of a certain area in the part corresponding to the crown,
Simple protective cap, characterized in that it is configured to be transformed into a dome shape according to the shape of the head. delete According to claim 1,
Simple protective cap, characterized in that the number of the vortex-shaped cut line is 7 or more. The method of claim 1 or 3,
The vortex-shaped cut line, a simple protective cap, characterized in that it has a projection that is cut so as to protrude to the outer circumferential side or inner circumferential side of the vortex-shaped cut line. The method of claim 1 or 3,
A short protective cap provided with a half-cut line that does not penetrate at least partially in the thickness direction in the vicinity of the outer circumferential end of the foam material, and has a bent portion that can bend the outer circumferential end to one side. The method of claim 5,
The foam material is formed in a polygonal shape,
The bent portion is provided with a wedge-shaped cut line so as to form a wedge-shaped protrusion in a plan view with a larger tip portion than a source at a position corresponding to each corner portion of the foam material,
The half cut line is a simple protective cap, characterized in that each provided at a position that connects the edge edge of the foam material and the wedge-shaped cut line on both sides of the protruding portion. The method of claim 1 or 3,
The thickness of the foam material is formed so that the side surfaces of the plurality of band-shaped portions formed between the plurality of vortex-shaped cut lines in the state of being mounted on the head are partially overlapped with each other and are pushed in a spiral shape without gaps and deformed into a dome shape. Simple protective cap, characterized by being. The method of claim 1 or 3,
The foaming material is a simple protective cap, characterized in that the foamed polyethylene, foamed polyurethane and ethylene-vinyl acetate copolymer resin foam is an independent cell foamed material formed of at least one foam resin selected from the group consisting of foams.

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